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diff --git a/bfd/doc/bfd.info b/bfd/doc/bfd.info index dac18708a1..08c14140b0 100644 --- a/bfd/doc/bfd.info +++ b/bfd/doc/bfd.info @@ -1,5 +1,5 @@ -This is ../../../src/bfd/doc/bfd.info, produced by makeinfo version 4.7 -from ../../../src/bfd/doc/bfd.texinfo. +This is ../.././bfd/doc/bfd.info, produced by makeinfo version 4.7 from +../.././bfd/doc/bfd.texinfo. START-INFO-DIR-ENTRY * Bfd: (bfd). The Binary File Descriptor library. @@ -17,9740 +17,73 @@ END-INFO-DIR-ENTRY section entitled "GNU Free Documentation License". -File: bfd.info, Node: Top, Next: Overview, Prev: (dir), Up: (dir) - - This file documents the binary file descriptor library libbfd. - -* Menu: - -* Overview:: Overview of BFD -* BFD front end:: BFD front end -* BFD back ends:: BFD back ends -* GNU Free Documentation License:: GNU Free Documentation License -* Index:: Index - - -File: bfd.info, Node: Overview, Next: BFD front end, Prev: Top, Up: Top - -1 Introduction -************** - -BFD is a package which allows applications to use the same routines to -operate on object files whatever the object file format. A new object -file format can be supported simply by creating a new BFD back end and -adding it to the library. - - BFD is split into two parts: the front end, and the back ends (one -for each object file format). - * The front end of BFD provides the interface to the user. It manages - memory and various canonical data structures. The front end also - decides which back end to use and when to call back end routines. - - * The back ends provide BFD its view of the real world. Each back - end provides a set of calls which the BFD front end can use to - maintain its canonical form. The back ends also may keep around - information for their own use, for greater efficiency. - -* Menu: - -* History:: History -* How It Works:: How It Works -* What BFD Version 2 Can Do:: What BFD Version 2 Can Do - - -File: bfd.info, Node: History, Next: How It Works, Prev: Overview, Up: Overview - -1.1 History -=========== - -One spur behind BFD was the desire, on the part of the GNU 960 team at -Intel Oregon, for interoperability of applications on their COFF and -b.out file formats. Cygnus was providing GNU support for the team, and -was contracted to provide the required functionality. - - The name came from a conversation David Wallace was having with -Richard Stallman about the library: RMS said that it would be quite -hard--David said "BFD". Stallman was right, but the name stuck. - - At the same time, Ready Systems wanted much the same thing, but for -different object file formats: IEEE-695, Oasys, Srecords, a.out and 68k -coff. - - BFD was first implemented by members of Cygnus Support; Steve -Chamberlain (`sac@cygnus.com'), John Gilmore (`gnu@cygnus.com'), K. -Richard Pixley (`rich@cygnus.com') and David Henkel-Wallace -(`gumby@cygnus.com'). - - -File: bfd.info, Node: How It Works, Next: What BFD Version 2 Can Do, Prev: History, Up: Overview - -1.2 How To Use BFD -================== - -To use the library, include `bfd.h' and link with `libbfd.a'. - - BFD provides a common interface to the parts of an object file for a -calling application. - - When an application sucessfully opens a target file (object, -archive, or whatever), a pointer to an internal structure is returned. -This pointer points to a structure called `bfd', described in `bfd.h'. -Our convention is to call this pointer a BFD, and instances of it -within code `abfd'. All operations on the target object file are -applied as methods to the BFD. The mapping is defined within `bfd.h' -in a set of macros, all beginning with `bfd_' to reduce namespace -pollution. - - For example, this sequence does what you would probably expect: -return the number of sections in an object file attached to a BFD -`abfd'. - - #include "bfd.h" - - unsigned int number_of_sections (abfd) - bfd *abfd; - { - return bfd_count_sections (abfd); - } - - The abstraction used within BFD is that an object file has: - - * a header, - - * a number of sections containing raw data (*note Sections::), - - * a set of relocations (*note Relocations::), and - - * some symbol information (*note Symbols::). - Also, BFDs opened for archives have the additional attribute of an -index and contain subordinate BFDs. This approach is fine for a.out and -coff, but loses efficiency when applied to formats such as S-records and -IEEE-695. - - -File: bfd.info, Node: What BFD Version 2 Can Do, Prev: How It Works, Up: Overview - -1.3 What BFD Version 2 Can Do -============================= - -When an object file is opened, BFD subroutines automatically determine -the format of the input object file. They then build a descriptor in -memory with pointers to routines that will be used to access elements of -the object file's data structures. - - As different information from the object files is required, BFD -reads from different sections of the file and processes them. For -example, a very common operation for the linker is processing symbol -tables. Each BFD back end provides a routine for converting between -the object file's representation of symbols and an internal canonical -format. When the linker asks for the symbol table of an object file, it -calls through a memory pointer to the routine from the relevant BFD -back end which reads and converts the table into a canonical form. The -linker then operates upon the canonical form. When the link is finished -and the linker writes the output file's symbol table, another BFD back -end routine is called to take the newly created symbol table and -convert it into the chosen output format. - -* Menu: - -* BFD information loss:: Information Loss -* Canonical format:: The BFD canonical object-file format - - -File: bfd.info, Node: BFD information loss, Next: Canonical format, Up: What BFD Version 2 Can Do - -1.3.1 Information Loss ----------------------- - -_Information can be lost during output._ The output formats supported -by BFD do not provide identical facilities, and information which can -be described in one form has nowhere to go in another format. One -example of this is alignment information in `b.out'. There is nowhere -in an `a.out' format file to store alignment information on the -contained data, so when a file is linked from `b.out' and an `a.out' -image is produced, alignment information will not propagate to the -output file. (The linker will still use the alignment information -internally, so the link is performed correctly). - - Another example is COFF section names. COFF files may contain an -unlimited number of sections, each one with a textual section name. If -the target of the link is a format which does not have many sections -(e.g., `a.out') or has sections without names (e.g., the Oasys format), -the link cannot be done simply. You can circumvent this problem by -describing the desired input-to-output section mapping with the linker -command language. - - _Information can be lost during canonicalization._ The BFD internal -canonical form of the external formats is not exhaustive; there are -structures in input formats for which there is no direct representation -internally. This means that the BFD back ends cannot maintain all -possible data richness through the transformation between external to -internal and back to external formats. - - This limitation is only a problem when an application reads one -format and writes another. Each BFD back end is responsible for -maintaining as much data as possible, and the internal BFD canonical -form has structures which are opaque to the BFD core, and exported only -to the back ends. When a file is read in one format, the canonical form -is generated for BFD and the application. At the same time, the back -end saves away any information which may otherwise be lost. If the data -is then written back in the same format, the back end routine will be -able to use the canonical form provided by the BFD core as well as the -information it prepared earlier. Since there is a great deal of -commonality between back ends, there is no information lost when -linking or copying big endian COFF to little endian COFF, or `a.out' to -`b.out'. When a mixture of formats is linked, the information is only -lost from the files whose format differs from the destination. - - -File: bfd.info, Node: Canonical format, Prev: BFD information loss, Up: What BFD Version 2 Can Do - -1.3.2 The BFD canonical object-file format ------------------------------------------- - -The greatest potential for loss of information occurs when there is the -least overlap between the information provided by the source format, -that stored by the canonical format, and that needed by the destination -format. A brief description of the canonical form may help you -understand which kinds of data you can count on preserving across -conversions. - -_files_ - Information stored on a per-file basis includes target machine - architecture, particular implementation format type, a demand - pageable bit, and a write protected bit. Information like Unix - magic numbers is not stored here--only the magic numbers' meaning, - so a `ZMAGIC' file would have both the demand pageable bit and the - write protected text bit set. The byte order of the target is - stored on a per-file basis, so that big- and little-endian object - files may be used with one another. - -_sections_ - Each section in the input file contains the name of the section, - the section's original address in the object file, size and - alignment information, various flags, and pointers into other BFD - data structures. - -_symbols_ - Each symbol contains a pointer to the information for the object - file which originally defined it, its name, its value, and various - flag bits. When a BFD back end reads in a symbol table, it - relocates all symbols to make them relative to the base of the - section where they were defined. Doing this ensures that each - symbol points to its containing section. Each symbol also has a - varying amount of hidden private data for the BFD back end. Since - the symbol points to the original file, the private data format - for that symbol is accessible. `ld' can operate on a collection - of symbols of wildly different formats without problems. - - Normal global and simple local symbols are maintained on output, - so an output file (no matter its format) will retain symbols - pointing to functions and to global, static, and common variables. - Some symbol information is not worth retaining; in `a.out', type - information is stored in the symbol table as long symbol names. - This information would be useless to most COFF debuggers; the - linker has command line switches to allow users to throw it away. - - There is one word of type information within the symbol, so if the - format supports symbol type information within symbols (for - example, COFF, IEEE, Oasys) and the type is simple enough to fit - within one word (nearly everything but aggregates), the - information will be preserved. - -_relocation level_ - Each canonical BFD relocation record contains a pointer to the - symbol to relocate to, the offset of the data to relocate, the - section the data is in, and a pointer to a relocation type - descriptor. Relocation is performed by passing messages through - the relocation type descriptor and the symbol pointer. Therefore, - relocations can be performed on output data using a relocation - method that is only available in one of the input formats. For - instance, Oasys provides a byte relocation format. A relocation - record requesting this relocation type would point indirectly to a - routine to perform this, so the relocation may be performed on a - byte being written to a 68k COFF file, even though 68k COFF has no - such relocation type. - -_line numbers_ - Object formats can contain, for debugging purposes, some form of - mapping between symbols, source line numbers, and addresses in the - output file. These addresses have to be relocated along with the - symbol information. Each symbol with an associated list of line - number records points to the first record of the list. The head - of a line number list consists of a pointer to the symbol, which - allows finding out the address of the function whose line number - is being described. The rest of the list is made up of pairs: - offsets into the section and line numbers. Any format which can - simply derive this information can pass it successfully between - formats (COFF, IEEE and Oasys). - - -File: bfd.info, Node: BFD front end, Next: BFD back ends, Prev: Overview, Up: Top - -2 BFD Front End -*************** - -2.1 `typedef bfd' -================= - -A BFD has type `bfd'; objects of this type are the cornerstone of any -application using BFD. Using BFD consists of making references though -the BFD and to data in the BFD. - - Here is the structure that defines the type `bfd'. It contains the -major data about the file and pointers to the rest of the data. - - - struct bfd - { - /* A unique identifier of the BFD */ - unsigned int id; - - /* The filename the application opened the BFD with. */ - const char *filename; - - /* A pointer to the target jump table. */ - const struct bfd_target *xvec; - - /* The IOSTREAM, and corresponding IO vector that provide access - to the file backing the BFD. */ - void *iostream; - const struct bfd_iovec *iovec; - - /* Is the file descriptor being cached? That is, can it be closed as - needed, and re-opened when accessed later? */ - bfd_boolean cacheable; - - /* Marks whether there was a default target specified when the - BFD was opened. This is used to select which matching algorithm - to use to choose the back end. */ - bfd_boolean target_defaulted; - - /* The caching routines use these to maintain a - least-recently-used list of BFDs. */ - struct bfd *lru_prev, *lru_next; - - /* When a file is closed by the caching routines, BFD retains - state information on the file here... */ - ufile_ptr where; - - /* ... and here: (``once'' means at least once). */ - bfd_boolean opened_once; - - /* Set if we have a locally maintained mtime value, rather than - getting it from the file each time. */ - bfd_boolean mtime_set; - - /* File modified time, if mtime_set is TRUE. */ - long mtime; - - /* Reserved for an unimplemented file locking extension. */ - int ifd; - - /* The format which belongs to the BFD. (object, core, etc.) */ - bfd_format format; - - /* The direction with which the BFD was opened. */ - enum bfd_direction - { - no_direction = 0, - read_direction = 1, - write_direction = 2, - both_direction = 3 - } - direction; - - /* Format_specific flags. */ - flagword flags; - - /* Currently my_archive is tested before adding origin to - anything. I believe that this can become always an add of - origin, with origin set to 0 for non archive files. */ - ufile_ptr origin; - - /* Remember when output has begun, to stop strange things - from happening. */ - bfd_boolean output_has_begun; - - /* A hash table for section names. */ - struct bfd_hash_table section_htab; - - /* Pointer to linked list of sections. */ - struct bfd_section *sections; - - /* The place where we add to the section list. */ - struct bfd_section **section_tail; - - /* The number of sections. */ - unsigned int section_count; - - /* Stuff only useful for object files: - The start address. */ - bfd_vma start_address; - - /* Used for input and output. */ - unsigned int symcount; - - /* Symbol table for output BFD (with symcount entries). */ - struct bfd_symbol **outsymbols; - - /* Used for slurped dynamic symbol tables. */ - unsigned int dynsymcount; - - /* Pointer to structure which contains architecture information. */ - const struct bfd_arch_info *arch_info; - - /* Flag set if symbols from this BFD should not be exported. */ - bfd_boolean no_export; - - /* Stuff only useful for archives. */ - void *arelt_data; - struct bfd *my_archive; /* The containing archive BFD. */ - struct bfd *next; /* The next BFD in the archive. */ - struct bfd *archive_head; /* The first BFD in the archive. */ - bfd_boolean has_armap; - - /* A chain of BFD structures involved in a link. */ - struct bfd *link_next; - - /* A field used by _bfd_generic_link_add_archive_symbols. This will - be used only for archive elements. */ - int archive_pass; - - /* Used by the back end to hold private data. */ - union - { - struct aout_data_struct *aout_data; - struct artdata *aout_ar_data; - struct _oasys_data *oasys_obj_data; - struct _oasys_ar_data *oasys_ar_data; - struct coff_tdata *coff_obj_data; - struct pe_tdata *pe_obj_data; - struct xcoff_tdata *xcoff_obj_data; - struct ecoff_tdata *ecoff_obj_data; - struct ieee_data_struct *ieee_data; - struct ieee_ar_data_struct *ieee_ar_data; - struct srec_data_struct *srec_data; - struct ihex_data_struct *ihex_data; - struct tekhex_data_struct *tekhex_data; - struct elf_obj_tdata *elf_obj_data; - struct nlm_obj_tdata *nlm_obj_data; - struct bout_data_struct *bout_data; - struct mmo_data_struct *mmo_data; - struct sun_core_struct *sun_core_data; - struct sco5_core_struct *sco5_core_data; - struct trad_core_struct *trad_core_data; - struct som_data_struct *som_data; - struct hpux_core_struct *hpux_core_data; - struct hppabsd_core_struct *hppabsd_core_data; - struct sgi_core_struct *sgi_core_data; - struct lynx_core_struct *lynx_core_data; - struct osf_core_struct *osf_core_data; - struct cisco_core_struct *cisco_core_data; - struct versados_data_struct *versados_data; - struct netbsd_core_struct *netbsd_core_data; - struct mach_o_data_struct *mach_o_data; - struct mach_o_fat_data_struct *mach_o_fat_data; - struct bfd_pef_data_struct *pef_data; - struct bfd_pef_xlib_data_struct *pef_xlib_data; - struct bfd_sym_data_struct *sym_data; - void *any; - } - tdata; - - /* Used by the application to hold private data. */ - void *usrdata; - - /* Where all the allocated stuff under this BFD goes. This is a - struct objalloc *, but we use void * to avoid requiring the inclusion - of objalloc.h. */ - void *memory; - }; - -2.2 Error reporting -=================== - -Most BFD functions return nonzero on success (check their individual -documentation for precise semantics). On an error, they call -`bfd_set_error' to set an error condition that callers can check by -calling `bfd_get_error'. If that returns `bfd_error_system_call', then -check `errno'. - - The easiest way to report a BFD error to the user is to use -`bfd_perror'. - -2.2.1 Type `bfd_error_type' ---------------------------- - -The values returned by `bfd_get_error' are defined by the enumerated -type `bfd_error_type'. - - - typedef enum bfd_error - { - bfd_error_no_error = 0, - bfd_error_system_call, - bfd_error_invalid_target, - bfd_error_wrong_format, - bfd_error_wrong_object_format, - bfd_error_invalid_operation, - bfd_error_no_memory, - bfd_error_no_symbols, - bfd_error_no_armap, - bfd_error_no_more_archived_files, - bfd_error_malformed_archive, - bfd_error_file_not_recognized, - bfd_error_file_ambiguously_recognized, - bfd_error_no_contents, - bfd_error_nonrepresentable_section, - bfd_error_no_debug_section, - bfd_error_bad_value, - bfd_error_file_truncated, - bfd_error_file_too_big, - bfd_error_invalid_error_code - } - bfd_error_type; - -2.2.1.1 `bfd_get_error' -....................... - -*Synopsis* - bfd_error_type bfd_get_error (void); - *Description* -Return the current BFD error condition. - -2.2.1.2 `bfd_set_error' -....................... - -*Synopsis* - void bfd_set_error (bfd_error_type error_tag); - *Description* -Set the BFD error condition to be ERROR_TAG. - -2.2.1.3 `bfd_errmsg' -.................... - -*Synopsis* - const char *bfd_errmsg (bfd_error_type error_tag); - *Description* -Return a string describing the error ERROR_TAG, or the system error if -ERROR_TAG is `bfd_error_system_call'. - -2.2.1.4 `bfd_perror' -.................... - -*Synopsis* - void bfd_perror (const char *message); - *Description* -Print to the standard error stream a string describing the last BFD -error that occurred, or the last system error if the last BFD error was -a system call failure. If MESSAGE is non-NULL and non-empty, the error -string printed is preceded by MESSAGE, a colon, and a space. It is -followed by a newline. - -2.2.2 BFD error handler ------------------------ - -Some BFD functions want to print messages describing the problem. They -call a BFD error handler function. This function may be overridden by -the program. - - The BFD error handler acts like printf. - - - typedef void (*bfd_error_handler_type) (const char *, ...); - -2.2.2.1 `bfd_set_error_handler' -............................... - -*Synopsis* - bfd_error_handler_type bfd_set_error_handler (bfd_error_handler_type); - *Description* -Set the BFD error handler function. Returns the previous function. - -2.2.2.2 `bfd_set_error_program_name' -.................................... - -*Synopsis* - void bfd_set_error_program_name (const char *); - *Description* -Set the program name to use when printing a BFD error. This is printed -before the error message followed by a colon and space. The string -must not be changed after it is passed to this function. - -2.2.2.3 `bfd_get_error_handler' -............................... - -*Synopsis* - bfd_error_handler_type bfd_get_error_handler (void); - *Description* -Return the BFD error handler function. - -2.3 Symbols -=========== - -2.3.0.1 `bfd_get_reloc_upper_bound' -................................... - -*Synopsis* - long bfd_get_reloc_upper_bound (bfd *abfd, asection *sect); - *Description* -Return the number of bytes required to store the relocation information -associated with section SECT attached to bfd ABFD. If an error occurs, -return -1. - -2.3.0.2 `bfd_canonicalize_reloc' -................................ - -*Synopsis* - long bfd_canonicalize_reloc - (bfd *abfd, asection *sec, arelent **loc, asymbol **syms); - *Description* -Call the back end associated with the open BFD ABFD and translate the -external form of the relocation information attached to SEC into the -internal canonical form. Place the table into memory at LOC, which has -been preallocated, usually by a call to `bfd_get_reloc_upper_bound'. -Returns the number of relocs, or -1 on error. - - The SYMS table is also needed for horrible internal magic reasons. - -2.3.0.3 `bfd_set_reloc' -....................... - -*Synopsis* - void bfd_set_reloc - (bfd *abfd, asection *sec, arelent **rel, unsigned int count); - *Description* -Set the relocation pointer and count within section SEC to the values -REL and COUNT. The argument ABFD is ignored. - -2.3.0.4 `bfd_set_file_flags' -............................ - -*Synopsis* - bfd_boolean bfd_set_file_flags (bfd *abfd, flagword flags); - *Description* -Set the flag word in the BFD ABFD to the value FLAGS. - - Possible errors are: - * `bfd_error_wrong_format' - The target bfd was not of object format. - - * `bfd_error_invalid_operation' - The target bfd was open for - reading. - - * `bfd_error_invalid_operation' - The flag word contained a bit - which was not applicable to the type of file. E.g., an attempt - was made to set the `D_PAGED' bit on a BFD format which does not - support demand paging. - -2.3.0.5 `bfd_get_arch_size' -........................... - -*Synopsis* - int bfd_get_arch_size (bfd *abfd); - *Description* -Returns the architecture address size, in bits, as determined by the -object file's format. For ELF, this information is included in the -header. - - *Returns* -Returns the arch size in bits if known, `-1' otherwise. - -2.3.0.6 `bfd_get_sign_extend_vma' -................................. - -*Synopsis* - int bfd_get_sign_extend_vma (bfd *abfd); - *Description* -Indicates if the target architecture "naturally" sign extends an -address. Some architectures implicitly sign extend address values when -they are converted to types larger than the size of an address. For -instance, bfd_get_start_address() will return an address sign extended -to fill a bfd_vma when this is the case. - - *Returns* -Returns `1' if the target architecture is known to sign extend -addresses, `0' if the target architecture is known to not sign extend -addresses, and `-1' otherwise. - -2.3.0.7 `bfd_set_start_address' -............................... - -*Synopsis* - bfd_boolean bfd_set_start_address (bfd *abfd, bfd_vma vma); - *Description* -Make VMA the entry point of output BFD ABFD. - - *Returns* -Returns `TRUE' on success, `FALSE' otherwise. - -2.3.0.8 `bfd_get_gp_size' -......................... - -*Synopsis* - unsigned int bfd_get_gp_size (bfd *abfd); - *Description* -Return the maximum size of objects to be optimized using the GP -register under MIPS ECOFF. This is typically set by the `-G' argument -to the compiler, assembler or linker. - -2.3.0.9 `bfd_set_gp_size' -......................... - -*Synopsis* - void bfd_set_gp_size (bfd *abfd, unsigned int i); - *Description* -Set the maximum size of objects to be optimized using the GP register -under ECOFF or MIPS ELF. This is typically set by the `-G' argument to -the compiler, assembler or linker. - -2.3.0.10 `bfd_scan_vma' -....................... - -*Synopsis* - bfd_vma bfd_scan_vma (const char *string, const char **end, int base); - *Description* -Convert, like `strtoul', a numerical expression STRING into a `bfd_vma' -integer, and return that integer. (Though without as many bells and -whistles as `strtoul'.) The expression is assumed to be unsigned -(i.e., positive). If given a BASE, it is used as the base for -conversion. A base of 0 causes the function to interpret the string in -hex if a leading "0x" or "0X" is found, otherwise in octal if a leading -zero is found, otherwise in decimal. - - If the value would overflow, the maximum `bfd_vma' value is returned. - -2.3.0.11 `bfd_copy_private_header_data' -....................................... - -*Synopsis* - bfd_boolean bfd_copy_private_header_data (bfd *ibfd, bfd *obfd); - *Description* -Copy private BFD header information from the BFD IBFD to the the BFD -OBFD. This copies information that may require sections to exist, but -does not require symbol tables. Return `true' on success, `false' on -error. Possible error returns are: - - * `bfd_error_no_memory' - Not enough memory exists to create private - data for OBFD. - - #define bfd_copy_private_header_data(ibfd, obfd) \ - BFD_SEND (obfd, _bfd_copy_private_header_data, \ - (ibfd, obfd)) - -2.3.0.12 `bfd_copy_private_bfd_data' -.................................... - -*Synopsis* - bfd_boolean bfd_copy_private_bfd_data (bfd *ibfd, bfd *obfd); - *Description* -Copy private BFD information from the BFD IBFD to the the BFD OBFD. -Return `TRUE' on success, `FALSE' on error. Possible error returns are: - - * `bfd_error_no_memory' - Not enough memory exists to create private - data for OBFD. - - #define bfd_copy_private_bfd_data(ibfd, obfd) \ - BFD_SEND (obfd, _bfd_copy_private_bfd_data, \ - (ibfd, obfd)) - -2.3.0.13 `bfd_merge_private_bfd_data' -..................................... - -*Synopsis* - bfd_boolean bfd_merge_private_bfd_data (bfd *ibfd, bfd *obfd); - *Description* -Merge private BFD information from the BFD IBFD to the the output file -BFD OBFD when linking. Return `TRUE' on success, `FALSE' on error. -Possible error returns are: - - * `bfd_error_no_memory' - Not enough memory exists to create private - data for OBFD. - - #define bfd_merge_private_bfd_data(ibfd, obfd) \ - BFD_SEND (obfd, _bfd_merge_private_bfd_data, \ - (ibfd, obfd)) - -2.3.0.14 `bfd_set_private_flags' -................................ - -*Synopsis* - bfd_boolean bfd_set_private_flags (bfd *abfd, flagword flags); - *Description* -Set private BFD flag information in the BFD ABFD. Return `TRUE' on -success, `FALSE' on error. Possible error returns are: - - * `bfd_error_no_memory' - Not enough memory exists to create private - data for OBFD. - - #define bfd_set_private_flags(abfd, flags) \ - BFD_SEND (abfd, _bfd_set_private_flags, (abfd, flags)) - -2.3.0.15 `Other functions' -.......................... - -*Description* -The following functions exist but have not yet been documented. - #define bfd_sizeof_headers(abfd, reloc) \ - BFD_SEND (abfd, _bfd_sizeof_headers, (abfd, reloc)) - - #define bfd_find_nearest_line(abfd, sec, syms, off, file, func, line) \ - BFD_SEND (abfd, _bfd_find_nearest_line, \ - (abfd, sec, syms, off, file, func, line)) - - #define bfd_debug_info_start(abfd) \ - BFD_SEND (abfd, _bfd_debug_info_start, (abfd)) - - #define bfd_debug_info_end(abfd) \ - BFD_SEND (abfd, _bfd_debug_info_end, (abfd)) - - #define bfd_debug_info_accumulate(abfd, section) \ - BFD_SEND (abfd, _bfd_debug_info_accumulate, (abfd, section)) - - #define bfd_stat_arch_elt(abfd, stat) \ - BFD_SEND (abfd, _bfd_stat_arch_elt,(abfd, stat)) - - #define bfd_update_armap_timestamp(abfd) \ - BFD_SEND (abfd, _bfd_update_armap_timestamp, (abfd)) - - #define bfd_set_arch_mach(abfd, arch, mach)\ - BFD_SEND ( abfd, _bfd_set_arch_mach, (abfd, arch, mach)) - - #define bfd_relax_section(abfd, section, link_info, again) \ - BFD_SEND (abfd, _bfd_relax_section, (abfd, section, link_info, again)) - - #define bfd_gc_sections(abfd, link_info) \ - BFD_SEND (abfd, _bfd_gc_sections, (abfd, link_info)) - - #define bfd_merge_sections(abfd, link_info) \ - BFD_SEND (abfd, _bfd_merge_sections, (abfd, link_info)) - - #define bfd_is_group_section(abfd, sec) \ - BFD_SEND (abfd, _bfd_is_group_section, (abfd, sec)) - - #define bfd_discard_group(abfd, sec) \ - BFD_SEND (abfd, _bfd_discard_group, (abfd, sec)) - - #define bfd_link_hash_table_create(abfd) \ - BFD_SEND (abfd, _bfd_link_hash_table_create, (abfd)) - - #define bfd_link_hash_table_free(abfd, hash) \ - BFD_SEND (abfd, _bfd_link_hash_table_free, (hash)) - - #define bfd_link_add_symbols(abfd, info) \ - BFD_SEND (abfd, _bfd_link_add_symbols, (abfd, info)) - - #define bfd_link_just_syms(abfd, sec, info) \ - BFD_SEND (abfd, _bfd_link_just_syms, (sec, info)) - - #define bfd_final_link(abfd, info) \ - BFD_SEND (abfd, _bfd_final_link, (abfd, info)) - - #define bfd_free_cached_info(abfd) \ - BFD_SEND (abfd, _bfd_free_cached_info, (abfd)) - - #define bfd_get_dynamic_symtab_upper_bound(abfd) \ - BFD_SEND (abfd, _bfd_get_dynamic_symtab_upper_bound, (abfd)) - - #define bfd_print_private_bfd_data(abfd, file)\ - BFD_SEND (abfd, _bfd_print_private_bfd_data, (abfd, file)) - - #define bfd_canonicalize_dynamic_symtab(abfd, asymbols) \ - BFD_SEND (abfd, _bfd_canonicalize_dynamic_symtab, (abfd, asymbols)) - - #define bfd_get_synthetic_symtab(abfd, count, syms, dyncount, dynsyms, ret) \ - BFD_SEND (abfd, _bfd_get_synthetic_symtab, (abfd, count, syms, \ - dyncount, dynsyms, ret)) - - #define bfd_get_dynamic_reloc_upper_bound(abfd) \ - BFD_SEND (abfd, _bfd_get_dynamic_reloc_upper_bound, (abfd)) - - #define bfd_canonicalize_dynamic_reloc(abfd, arels, asyms) \ - BFD_SEND (abfd, _bfd_canonicalize_dynamic_reloc, (abfd, arels, asyms)) - - extern bfd_byte *bfd_get_relocated_section_contents - (bfd *, struct bfd_link_info *, struct bfd_link_order *, bfd_byte *, - bfd_boolean, asymbol **); - -2.3.0.16 `bfd_alt_mach_code' -............................ - -*Synopsis* - bfd_boolean bfd_alt_mach_code (bfd *abfd, int alternative); - *Description* -When more than one machine code number is available for the same -machine type, this function can be used to switch between the preferred -one (alternative == 0) and any others. Currently, only ELF supports -this feature, with up to two alternate machine codes. - - struct bfd_preserve - { - void *marker; - void *tdata; - flagword flags; - const struct bfd_arch_info *arch_info; - struct bfd_section *sections; - struct bfd_section **section_tail; - unsigned int section_count; - struct bfd_hash_table section_htab; - }; - -2.3.0.17 `bfd_preserve_save' -............................ - -*Synopsis* - bfd_boolean bfd_preserve_save (bfd *, struct bfd_preserve *); - *Description* -When testing an object for compatibility with a particular target -back-end, the back-end object_p function needs to set up certain fields -in the bfd on successfully recognizing the object. This typically -happens in a piecemeal fashion, with failures possible at many points. -On failure, the bfd is supposed to be restored to its initial state, -which is virtually impossible. However, restoring a subset of the bfd -state works in practice. This function stores the subset and -reinitializes the bfd. - -2.3.0.18 `bfd_preserve_restore' -............................... - -*Synopsis* - void bfd_preserve_restore (bfd *, struct bfd_preserve *); - *Description* -This function restores bfd state saved by bfd_preserve_save. If MARKER -is non-NULL in struct bfd_preserve then that block and all subsequently -bfd_alloc'd memory is freed. - -2.3.0.19 `bfd_preserve_finish' -.............................. - -*Synopsis* - void bfd_preserve_finish (bfd *, struct bfd_preserve *); - *Description* -This function should be called when the bfd state saved by -bfd_preserve_save is no longer needed. ie. when the back-end object_p -function returns with success. - -2.3.0.20 `struct bfd_iovec' -........................... - -*Description* -The `struct bfd_iovec' contains the internal file I/O class. Each -`BFD' has an instance of this class and all file I/O is routed through -it (it is assumed that the instance implements all methods listed -below). - struct bfd_iovec - { - /* To avoid problems with macros, a "b" rather than "f" - prefix is prepended to each method name. */ - /* Attempt to read/write NBYTES on ABFD's IOSTREAM storing/fetching - bytes starting at PTR. Return the number of bytes actually - transfered (a read past end-of-file returns less than NBYTES), - or -1 (setting `bfd_error') if an error occurs. */ - file_ptr (*bread) (struct bfd *abfd, void *ptr, file_ptr nbytes); - file_ptr (*bwrite) (struct bfd *abfd, const void *ptr, - file_ptr nbytes); - /* Return the current IOSTREAM file offset, or -1 (setting `bfd_error' - if an error occurs. */ - file_ptr (*btell) (struct bfd *abfd); - /* For the following, on successful completion a value of 0 is returned. - Otherwise, a value of -1 is returned (and `bfd_error' is set). */ - int (*bseek) (struct bfd *abfd, file_ptr offset, int whence); - int (*bclose) (struct bfd *abfd); - int (*bflush) (struct bfd *abfd); - int (*bstat) (struct bfd *abfd, struct stat *sb); - }; - -2.3.0.21 `bfd_get_mtime' -........................ - -*Synopsis* - long bfd_get_mtime (bfd *abfd); - *Description* -Return the file modification time (as read from the file system, or -from the archive header for archive members). - -2.3.0.22 `bfd_get_size' -....................... - -*Synopsis* - long bfd_get_size (bfd *abfd); - *Description* -Return the file size (as read from file system) for the file associated -with BFD ABFD. - - The initial motivation for, and use of, this routine is not so we -can get the exact size of the object the BFD applies to, since that -might not be generally possible (archive members for example). It -would be ideal if someone could eventually modify it so that such -results were guaranteed. - - Instead, we want to ask questions like "is this NNN byte sized -object I'm about to try read from file offset YYY reasonable?" As as -example of where we might do this, some object formats use string -tables for which the first `sizeof (long)' bytes of the table contain -the size of the table itself, including the size bytes. If an -application tries to read what it thinks is one of these string tables, -without some way to validate the size, and for some reason the size is -wrong (byte swapping error, wrong location for the string table, etc.), -the only clue is likely to be a read error when it tries to read the -table, or a "virtual memory exhausted" error when it tries to allocate -15 bazillon bytes of space for the 15 bazillon byte table it is about -to read. This function at least allows us to answer the question, "is -the size reasonable?". - -* Menu: - -* Memory Usage:: -* Initialization:: -* Sections:: -* Symbols:: -* Archives:: -* Formats:: -* Relocations:: -* Core Files:: -* Targets:: -* Architectures:: -* Opening and Closing:: -* Internal:: -* File Caching:: -* Linker Functions:: -* Hash Tables:: - - -File: bfd.info, Node: Memory Usage, Next: Initialization, Prev: BFD front end, Up: BFD front end - -2.4 Memory Usage -================ - -BFD keeps all of its internal structures in obstacks. There is one -obstack per open BFD file, into which the current state is stored. When -a BFD is closed, the obstack is deleted, and so everything which has -been allocated by BFD for the closing file is thrown away. - - BFD does not free anything created by an application, but pointers -into `bfd' structures become invalid on a `bfd_close'; for example, -after a `bfd_close' the vector passed to `bfd_canonicalize_symtab' is -still around, since it has been allocated by the application, but the -data that it pointed to are lost. - - The general rule is to not close a BFD until all operations dependent -upon data from the BFD have been completed, or all the data from within -the file has been copied. To help with the management of memory, there -is a function (`bfd_alloc_size') which returns the number of bytes in -obstacks associated with the supplied BFD. This could be used to select -the greediest open BFD, close it to reclaim the memory, perform some -operation and reopen the BFD again, to get a fresh copy of the data -structures. - - -File: bfd.info, Node: Initialization, Next: Sections, Prev: Memory Usage, Up: BFD front end - -2.5 Initialization -================== - -These are the functions that handle initializing a BFD. - -2.5.0.1 `bfd_init' -.................. - -*Synopsis* - void bfd_init (void); - *Description* -This routine must be called before any other BFD function to initialize -magical internal data structures. - - -File: bfd.info, Node: Sections, Next: Symbols, Prev: Initialization, Up: BFD front end - -2.6 Sections -============ - -The raw data contained within a BFD is maintained through the section -abstraction. A single BFD may have any number of sections. It keeps -hold of them by pointing to the first; each one points to the next in -the list. - - Sections are supported in BFD in `section.c'. - -* Menu: - -* Section Input:: -* Section Output:: -* typedef asection:: -* section prototypes:: - - -File: bfd.info, Node: Section Input, Next: Section Output, Prev: Sections, Up: Sections - -2.6.1 Section input -------------------- - -When a BFD is opened for reading, the section structures are created -and attached to the BFD. - - Each section has a name which describes the section in the outside -world--for example, `a.out' would contain at least three sections, -called `.text', `.data' and `.bss'. - - Names need not be unique; for example a COFF file may have several -sections named `.data'. - - Sometimes a BFD will contain more than the "natural" number of -sections. A back end may attach other sections containing constructor -data, or an application may add a section (using `bfd_make_section') to -the sections attached to an already open BFD. For example, the linker -creates an extra section `COMMON' for each input file's BFD to hold -information about common storage. - - The raw data is not necessarily read in when the section descriptor -is created. Some targets may leave the data in place until a -`bfd_get_section_contents' call is made. Other back ends may read in -all the data at once. For example, an S-record file has to be read -once to determine the size of the data. An IEEE-695 file doesn't -contain raw data in sections, but data and relocation expressions -intermixed, so the data area has to be parsed to get out the data and -relocations. - - -File: bfd.info, Node: Section Output, Next: typedef asection, Prev: Section Input, Up: Sections - -2.6.2 Section output --------------------- - -To write a new object style BFD, the various sections to be written -have to be created. They are attached to the BFD in the same way as -input sections; data is written to the sections using -`bfd_set_section_contents'. - - Any program that creates or combines sections (e.g., the assembler -and linker) must use the `asection' fields `output_section' and -`output_offset' to indicate the file sections to which each section -must be written. (If the section is being created from scratch, -`output_section' should probably point to the section itself and -`output_offset' should probably be zero.) - - The data to be written comes from input sections attached (via -`output_section' pointers) to the output sections. The output section -structure can be considered a filter for the input section: the output -section determines the vma of the output data and the name, but the -input section determines the offset into the output section of the data -to be written. - - E.g., to create a section "O", starting at 0x100, 0x123 long, -containing two subsections, "A" at offset 0x0 (i.e., at vma 0x100) and -"B" at offset 0x20 (i.e., at vma 0x120) the `asection' structures would -look like: - - section name "A" - output_offset 0x00 - size 0x20 - output_section -----------> section name "O" - | vma 0x100 - section name "B" | size 0x123 - output_offset 0x20 | - size 0x103 | - output_section --------| - -2.6.3 Link orders ------------------ - -The data within a section is stored in a "link_order". These are much -like the fixups in `gas'. The link_order abstraction allows a section -to grow and shrink within itself. - - A link_order knows how big it is, and which is the next link_order -and where the raw data for it is; it also points to a list of -relocations which apply to it. - - The link_order is used by the linker to perform relaxing on final -code. The compiler creates code which is as big as necessary to make -it work without relaxing, and the user can select whether to relax. -Sometimes relaxing takes a lot of time. The linker runs around the -relocations to see if any are attached to data which can be shrunk, if -so it does it on a link_order by link_order basis. - - -File: bfd.info, Node: typedef asection, Next: section prototypes, Prev: Section Output, Up: Sections - -2.6.4 typedef asection ----------------------- - -Here is the section structure: - - - typedef struct bfd_section - { - /* The name of the section; the name isn't a copy, the pointer is - the same as that passed to bfd_make_section. */ - const char *name; - - /* A unique sequence number. */ - int id; - - /* Which section in the bfd; 0..n-1 as sections are created in a bfd. */ - int index; - - /* The next section in the list belonging to the BFD, or NULL. */ - struct bfd_section *next; - - /* The field flags contains attributes of the section. Some - flags are read in from the object file, and some are - synthesized from other information. */ - flagword flags; - - #define SEC_NO_FLAGS 0x000 - - /* Tells the OS to allocate space for this section when loading. - This is clear for a section containing debug information only. */ - #define SEC_ALLOC 0x001 - - /* Tells the OS to load the section from the file when loading. - This is clear for a .bss section. */ - #define SEC_LOAD 0x002 - - /* The section contains data still to be relocated, so there is - some relocation information too. */ - #define SEC_RELOC 0x004 - - /* A signal to the OS that the section contains read only data. */ - #define SEC_READONLY 0x008 - - /* The section contains code only. */ - #define SEC_CODE 0x010 - - /* The section contains data only. */ - #define SEC_DATA 0x020 - - /* The section will reside in ROM. */ - #define SEC_ROM 0x040 - - /* The section contains constructor information. This section - type is used by the linker to create lists of constructors and - destructors used by `g++'. When a back end sees a symbol - which should be used in a constructor list, it creates a new - section for the type of name (e.g., `__CTOR_LIST__'), attaches - the symbol to it, and builds a relocation. To build the lists - of constructors, all the linker has to do is catenate all the - sections called `__CTOR_LIST__' and relocate the data - contained within - exactly the operations it would peform on - standard data. */ - #define SEC_CONSTRUCTOR 0x080 - - /* The section has contents - a data section could be - `SEC_ALLOC' | `SEC_HAS_CONTENTS'; a debug section could be - `SEC_HAS_CONTENTS' */ - #define SEC_HAS_CONTENTS 0x100 - - /* An instruction to the linker to not output the section - even if it has information which would normally be written. */ - #define SEC_NEVER_LOAD 0x200 - - /* The section contains thread local data. */ - #define SEC_THREAD_LOCAL 0x400 - - /* The section has GOT references. This flag is only for the - linker, and is currently only used by the elf32-hppa back end. - It will be set if global offset table references were detected - in this section, which indicate to the linker that the section - contains PIC code, and must be handled specially when doing a - static link. */ - #define SEC_HAS_GOT_REF 0x800 - - /* The section contains common symbols (symbols may be defined - multiple times, the value of a symbol is the amount of - space it requires, and the largest symbol value is the one - used). Most targets have exactly one of these (which we - translate to bfd_com_section_ptr), but ECOFF has two. */ - #define SEC_IS_COMMON 0x1000 - - /* The section contains only debugging information. For - example, this is set for ELF .debug and .stab sections. - strip tests this flag to see if a section can be - discarded. */ - #define SEC_DEBUGGING 0x2000 - - /* The contents of this section are held in memory pointed to - by the contents field. This is checked by bfd_get_section_contents, - and the data is retrieved from memory if appropriate. */ - #define SEC_IN_MEMORY 0x4000 - - /* The contents of this section are to be excluded by the - linker for executable and shared objects unless those - objects are to be further relocated. */ - #define SEC_EXCLUDE 0x8000 - - /* The contents of this section are to be sorted based on the sum of - the symbol and addend values specified by the associated relocation - entries. Entries without associated relocation entries will be - appended to the end of the section in an unspecified order. */ - #define SEC_SORT_ENTRIES 0x10000 - - /* When linking, duplicate sections of the same name should be - discarded, rather than being combined into a single section as - is usually done. This is similar to how common symbols are - handled. See SEC_LINK_DUPLICATES below. */ - #define SEC_LINK_ONCE 0x20000 - - /* If SEC_LINK_ONCE is set, this bitfield describes how the linker - should handle duplicate sections. */ - #define SEC_LINK_DUPLICATES 0x40000 - - /* This value for SEC_LINK_DUPLICATES means that duplicate - sections with the same name should simply be discarded. */ - #define SEC_LINK_DUPLICATES_DISCARD 0x0 - - /* This value for SEC_LINK_DUPLICATES means that the linker - should warn if there are any duplicate sections, although - it should still only link one copy. */ - #define SEC_LINK_DUPLICATES_ONE_ONLY 0x80000 - - /* This value for SEC_LINK_DUPLICATES means that the linker - should warn if any duplicate sections are a different size. */ - #define SEC_LINK_DUPLICATES_SAME_SIZE 0x100000 - - /* This value for SEC_LINK_DUPLICATES means that the linker - should warn if any duplicate sections contain different - contents. */ - #define SEC_LINK_DUPLICATES_SAME_CONTENTS \ - (SEC_LINK_DUPLICATES_ONE_ONLY | SEC_LINK_DUPLICATES_SAME_SIZE) - - /* This section was created by the linker as part of dynamic - relocation or other arcane processing. It is skipped when - going through the first-pass output, trusting that someone - else up the line will take care of it later. */ - #define SEC_LINKER_CREATED 0x200000 - - /* This section should not be subject to garbage collection. */ - #define SEC_KEEP 0x400000 - - /* This section contains "short" data, and should be placed - "near" the GP. */ - #define SEC_SMALL_DATA 0x800000 - - /* Attempt to merge identical entities in the section. - Entity size is given in the entsize field. */ - #define SEC_MERGE 0x1000000 - - /* If given with SEC_MERGE, entities to merge are zero terminated - strings where entsize specifies character size instead of fixed - size entries. */ - #define SEC_STRINGS 0x2000000 - - /* This section contains data about section groups. */ - #define SEC_GROUP 0x4000000 - - /* The section is a COFF shared library section. This flag is - only for the linker. If this type of section appears in - the input file, the linker must copy it to the output file - without changing the vma or size. FIXME: Although this - was originally intended to be general, it really is COFF - specific (and the flag was renamed to indicate this). It - might be cleaner to have some more general mechanism to - allow the back end to control what the linker does with - sections. */ - #define SEC_COFF_SHARED_LIBRARY 0x10000000 - - /* This section contains data which may be shared with other - executables or shared objects. This is for COFF only. */ - #define SEC_COFF_SHARED 0x20000000 - - /* When a section with this flag is being linked, then if the size of - the input section is less than a page, it should not cross a page - boundary. If the size of the input section is one page or more, - it should be aligned on a page boundary. This is for TI - TMS320C54X only. */ - #define SEC_TIC54X_BLOCK 0x40000000 - - /* Conditionally link this section; do not link if there are no - references found to any symbol in the section. This is for TI - TMS320C54X only. */ - #define SEC_TIC54X_CLINK 0x80000000 - - /* End of section flags. */ - - /* Some internal packed boolean fields. */ - - /* See the vma field. */ - unsigned int user_set_vma : 1; - - /* A mark flag used by some of the linker backends. */ - unsigned int linker_mark : 1; - - /* Another mark flag used by some of the linker backends. Set for - output sections that have an input section. */ - unsigned int linker_has_input : 1; - - /* A mark flag used by some linker backends for garbage collection. */ - unsigned int gc_mark : 1; - - /* The following flags are used by the ELF linker. */ - - /* Mark sections which have been allocated to segments. */ - unsigned int segment_mark : 1; - - /* Type of sec_info information. */ - unsigned int sec_info_type:3; - #define ELF_INFO_TYPE_NONE 0 - #define ELF_INFO_TYPE_STABS 1 - #define ELF_INFO_TYPE_MERGE 2 - #define ELF_INFO_TYPE_EH_FRAME 3 - #define ELF_INFO_TYPE_JUST_SYMS 4 - - /* Nonzero if this section uses RELA relocations, rather than REL. */ - unsigned int use_rela_p:1; - - /* Bits used by various backends. The generic code doesn't touch - these fields. */ - - /* Nonzero if this section has TLS related relocations. */ - unsigned int has_tls_reloc:1; - - /* Nonzero if this section has a gp reloc. */ - unsigned int has_gp_reloc:1; - - /* Nonzero if this section needs the relax finalize pass. */ - unsigned int need_finalize_relax:1; - - /* Whether relocations have been processed. */ - unsigned int reloc_done : 1; - - /* End of internal packed boolean fields. */ - - /* The virtual memory address of the section - where it will be - at run time. The symbols are relocated against this. The - user_set_vma flag is maintained by bfd; if it's not set, the - backend can assign addresses (for example, in `a.out', where - the default address for `.data' is dependent on the specific - target and various flags). */ - bfd_vma vma; - - /* The load address of the section - where it would be in a - rom image; really only used for writing section header - information. */ - bfd_vma lma; - - /* The size of the section in octets, as it will be output. - Contains a value even if the section has no contents (e.g., the - size of `.bss'). */ - bfd_size_type size; - - /* For input sections, the original size on disk of the section, in - octets. This field is used by the linker relaxation code. It is - currently only set for sections where the linker relaxation scheme - doesn't cache altered section and reloc contents (stabs, eh_frame, - SEC_MERGE, some coff relaxing targets), and thus the original size - needs to be kept to read the section multiple times. - For output sections, rawsize holds the section size calculated on - a previous linker relaxation pass. */ - bfd_size_type rawsize; - - /* If this section is going to be output, then this value is the - offset in *bytes* into the output section of the first byte in the - input section (byte ==> smallest addressable unit on the - target). In most cases, if this was going to start at the - 100th octet (8-bit quantity) in the output section, this value - would be 100. However, if the target byte size is 16 bits - (bfd_octets_per_byte is "2"), this value would be 50. */ - bfd_vma output_offset; - - /* The output section through which to map on output. */ - struct bfd_section *output_section; - - /* The alignment requirement of the section, as an exponent of 2 - - e.g., 3 aligns to 2^3 (or 8). */ - unsigned int alignment_power; - - /* If an input section, a pointer to a vector of relocation - records for the data in this section. */ - struct reloc_cache_entry *relocation; - - /* If an output section, a pointer to a vector of pointers to - relocation records for the data in this section. */ - struct reloc_cache_entry **orelocation; - - /* The number of relocation records in one of the above. */ - unsigned reloc_count; - - /* Information below is back end specific - and not always used - or updated. */ - - /* File position of section data. */ - file_ptr filepos; - - /* File position of relocation info. */ - file_ptr rel_filepos; - - /* File position of line data. */ - file_ptr line_filepos; - - /* Pointer to data for applications. */ - void *userdata; - - /* If the SEC_IN_MEMORY flag is set, this points to the actual - contents. */ - unsigned char *contents; - - /* Attached line number information. */ - alent *lineno; - - /* Number of line number records. */ - unsigned int lineno_count; - - /* Entity size for merging purposes. */ - unsigned int entsize; - - /* Points to the kept section if this section is a link-once section, - and is discarded. */ - struct bfd_section *kept_section; - - /* When a section is being output, this value changes as more - linenumbers are written out. */ - file_ptr moving_line_filepos; - - /* What the section number is in the target world. */ - int target_index; - - void *used_by_bfd; - - /* If this is a constructor section then here is a list of the - relocations created to relocate items within it. */ - struct relent_chain *constructor_chain; - - /* The BFD which owns the section. */ - bfd *owner; - - /* A symbol which points at this section only. */ - struct bfd_symbol *symbol; - struct bfd_symbol **symbol_ptr_ptr; - - struct bfd_link_order *link_order_head; - struct bfd_link_order *link_order_tail; - } asection; - - /* These sections are global, and are managed by BFD. The application - and target back end are not permitted to change the values in - these sections. New code should use the section_ptr macros rather - than referring directly to the const sections. The const sections - may eventually vanish. */ - #define BFD_ABS_SECTION_NAME "*ABS*" - #define BFD_UND_SECTION_NAME "*UND*" - #define BFD_COM_SECTION_NAME "*COM*" - #define BFD_IND_SECTION_NAME "*IND*" - - /* The absolute section. */ - extern asection bfd_abs_section; - #define bfd_abs_section_ptr ((asection *) &bfd_abs_section) - #define bfd_is_abs_section(sec) ((sec) == bfd_abs_section_ptr) - /* Pointer to the undefined section. */ - extern asection bfd_und_section; - #define bfd_und_section_ptr ((asection *) &bfd_und_section) - #define bfd_is_und_section(sec) ((sec) == bfd_und_section_ptr) - /* Pointer to the common section. */ - extern asection bfd_com_section; - #define bfd_com_section_ptr ((asection *) &bfd_com_section) - /* Pointer to the indirect section. */ - extern asection bfd_ind_section; - #define bfd_ind_section_ptr ((asection *) &bfd_ind_section) - #define bfd_is_ind_section(sec) ((sec) == bfd_ind_section_ptr) - - #define bfd_is_const_section(SEC) \ - ( ((SEC) == bfd_abs_section_ptr) \ - || ((SEC) == bfd_und_section_ptr) \ - || ((SEC) == bfd_com_section_ptr) \ - || ((SEC) == bfd_ind_section_ptr)) - - extern const struct bfd_symbol * const bfd_abs_symbol; - extern const struct bfd_symbol * const bfd_com_symbol; - extern const struct bfd_symbol * const bfd_und_symbol; - extern const struct bfd_symbol * const bfd_ind_symbol; - - /* Macros to handle insertion and deletion of a bfd's sections. These - only handle the list pointers, ie. do not adjust section_count, - target_index etc. */ - #define bfd_section_list_remove(ABFD, PS) \ - do \ - { \ - asection **_ps = PS; \ - asection *_s = *_ps; \ - *_ps = _s->next; \ - if (_s->next == NULL) \ - (ABFD)->section_tail = _ps; \ - } \ - while (0) - #define bfd_section_list_insert(ABFD, PS, S) \ - do \ - { \ - asection **_ps = PS; \ - asection *_s = S; \ - _s->next = *_ps; \ - *_ps = _s; \ - if (_s->next == NULL) \ - (ABFD)->section_tail = &_s->next; \ - } \ - while (0) - - -File: bfd.info, Node: section prototypes, Prev: typedef asection, Up: Sections - -2.6.5 Section prototypes ------------------------- - -These are the functions exported by the section handling part of BFD. - -2.6.5.1 `bfd_section_list_clear' -................................ - -*Synopsis* - void bfd_section_list_clear (bfd *); - *Description* -Clears the section list, and also resets the section count and hash -table entries. - -2.6.5.2 `bfd_get_section_by_name' -................................. - -*Synopsis* - asection *bfd_get_section_by_name (bfd *abfd, const char *name); - *Description* -Run through ABFD and return the one of the `asection's whose name -matches NAME, otherwise `NULL'. *Note Sections::, for more information. - - This should only be used in special cases; the normal way to process -all sections of a given name is to use `bfd_map_over_sections' and -`strcmp' on the name (or better yet, base it on the section flags or -something else) for each section. - -2.6.5.3 `bfd_get_section_by_name_if' -.................................... - -*Synopsis* - asection *bfd_get_section_by_name_if - (bfd *abfd, - const char *name, - bfd_boolean (*func) (bfd *abfd, asection *sect, void *obj), - void *obj); - *Description* -Call the provided function FUNC for each section attached to the BFD -ABFD whose name matches NAME, passing OBJ as an argument. The function -will be called as if by - - func (abfd, the_section, obj); - - It returns the first section for which FUNC returns true, otherwise -`NULL'. - -2.6.5.4 `bfd_get_unique_section_name' -..................................... - -*Synopsis* - char *bfd_get_unique_section_name - (bfd *abfd, const char *templat, int *count); - *Description* -Invent a section name that is unique in ABFD by tacking a dot and a -digit suffix onto the original TEMPLAT. If COUNT is non-NULL, then it -specifies the first number tried as a suffix to generate a unique name. -The value pointed to by COUNT will be incremented in this case. - -2.6.5.5 `bfd_make_section_old_way' -.................................. - -*Synopsis* - asection *bfd_make_section_old_way (bfd *abfd, const char *name); - *Description* -Create a new empty section called NAME and attach it to the end of the -chain of sections for the BFD ABFD. An attempt to create a section with -a name which is already in use returns its pointer without changing the -section chain. - - It has the funny name since this is the way it used to be before it -was rewritten.... - - Possible errors are: - * `bfd_error_invalid_operation' - If output has already started for - this BFD. - - * `bfd_error_no_memory' - If memory allocation fails. - -2.6.5.6 `bfd_make_section_anyway' -................................. - -*Synopsis* - asection *bfd_make_section_anyway (bfd *abfd, const char *name); - *Description* -Create a new empty section called NAME and attach it to the end of the -chain of sections for ABFD. Create a new section even if there is -already a section with that name. - - Return `NULL' and set `bfd_error' on error; possible errors are: - * `bfd_error_invalid_operation' - If output has already started for - ABFD. - - * `bfd_error_no_memory' - If memory allocation fails. - -2.6.5.7 `bfd_make_section' -.......................... - -*Synopsis* - asection *bfd_make_section (bfd *, const char *name); - *Description* -Like `bfd_make_section_anyway', but return `NULL' (without calling -bfd_set_error ()) without changing the section chain if there is -already a section named NAME. If there is an error, return `NULL' and -set `bfd_error'. - -2.6.5.8 `bfd_set_section_flags' -............................... - -*Synopsis* - bfd_boolean bfd_set_section_flags - (bfd *abfd, asection *sec, flagword flags); - *Description* -Set the attributes of the section SEC in the BFD ABFD to the value -FLAGS. Return `TRUE' on success, `FALSE' on error. Possible error -returns are: - - * `bfd_error_invalid_operation' - The section cannot have one or - more of the attributes requested. For example, a .bss section in - `a.out' may not have the `SEC_HAS_CONTENTS' field set. - -2.6.5.9 `bfd_map_over_sections' -............................... - -*Synopsis* - void bfd_map_over_sections - (bfd *abfd, - void (*func) (bfd *abfd, asection *sect, void *obj), - void *obj); - *Description* -Call the provided function FUNC for each section attached to the BFD -ABFD, passing OBJ as an argument. The function will be called as if by - - func (abfd, the_section, obj); - - This is the preferred method for iterating over sections; an -alternative would be to use a loop: - - section *p; - for (p = abfd->sections; p != NULL; p = p->next) - func (abfd, p, ...) - -2.6.5.10 `bfd_sections_find_if' -............................... - -*Synopsis* - asection *bfd_sections_find_if - (bfd *abfd, - bfd_boolean (*operation) (bfd *abfd, asection *sect, void *obj), - void *obj); - *Description* -Call the provided function OPERATION for each section attached to the -BFD ABFD, passing OBJ as an argument. The function will be called as if -by - - operation (abfd, the_section, obj); - - It returns the first section for which OPERATION returns true. - -2.6.5.11 `bfd_set_section_size' -............................... - -*Synopsis* - bfd_boolean bfd_set_section_size - (bfd *abfd, asection *sec, bfd_size_type val); - *Description* -Set SEC to the size VAL. If the operation is ok, then `TRUE' is -returned, else `FALSE'. - - Possible error returns: - * `bfd_error_invalid_operation' - Writing has started to the BFD, so - setting the size is invalid. - -2.6.5.12 `bfd_set_section_contents' -................................... - -*Synopsis* - bfd_boolean bfd_set_section_contents - (bfd *abfd, asection *section, const void *data, - file_ptr offset, bfd_size_type count); - *Description* -Sets the contents of the section SECTION in BFD ABFD to the data -starting in memory at DATA. The data is written to the output section -starting at offset OFFSET for COUNT octets. - - Normally `TRUE' is returned, else `FALSE'. Possible error returns -are: - * `bfd_error_no_contents' - The output section does not have the - `SEC_HAS_CONTENTS' attribute, so nothing can be written to it. - - * and some more too - This routine is front end to the back end function -`_bfd_set_section_contents'. - -2.6.5.13 `bfd_get_section_contents' -................................... - -*Synopsis* - bfd_boolean bfd_get_section_contents - (bfd *abfd, asection *section, void *location, file_ptr offset, - bfd_size_type count); - *Description* -Read data from SECTION in BFD ABFD into memory starting at LOCATION. -The data is read at an offset of OFFSET from the start of the input -section, and is read for COUNT bytes. - - If the contents of a constructor with the `SEC_CONSTRUCTOR' flag set -are requested or if the section does not have the `SEC_HAS_CONTENTS' -flag set, then the LOCATION is filled with zeroes. If no errors occur, -`TRUE' is returned, else `FALSE'. - -2.6.5.14 `bfd_malloc_and_get_section' -..................................... - -*Synopsis* - bfd_boolean bfd_malloc_and_get_section - (bfd *abfd, asection *section, bfd_byte **buf); - *Description* -Read all data from SECTION in BFD ABFD into a buffer, *BUF, malloc'd by -this function. - -2.6.5.15 `bfd_copy_private_section_data' -........................................ - -*Synopsis* - bfd_boolean bfd_copy_private_section_data - (bfd *ibfd, asection *isec, bfd *obfd, asection *osec); - *Description* -Copy private section information from ISEC in the BFD IBFD to the -section OSEC in the BFD OBFD. Return `TRUE' on success, `FALSE' on -error. Possible error returns are: - - * `bfd_error_no_memory' - Not enough memory exists to create private - data for OSEC. - - #define bfd_copy_private_section_data(ibfd, isection, obfd, osection) \ - BFD_SEND (obfd, _bfd_copy_private_section_data, \ - (ibfd, isection, obfd, osection)) - -2.6.5.16 `_bfd_strip_section_from_output' -......................................... - -*Synopsis* - void _bfd_strip_section_from_output - (struct bfd_link_info *info, asection *section); - *Description* -Remove SECTION from the output. If the output section becomes empty, -remove it from the output bfd. - - This function won't actually do anything except twiddle flags if -called too late in the linking process, when it's not safe to remove -sections. - -2.6.5.17 `bfd_generic_is_group_section' -....................................... - -*Synopsis* - bfd_boolean bfd_generic_is_group_section (bfd *, const asection *sec); - *Description* -Returns TRUE if SEC is a member of a group. - -2.6.5.18 `bfd_generic_discard_group' -.................................... - -*Synopsis* - bfd_boolean bfd_generic_discard_group (bfd *abfd, asection *group); - *Description* -Remove all members of GROUP from the output. - - -File: bfd.info, Node: Symbols, Next: Archives, Prev: Sections, Up: BFD front end - -2.7 Symbols -=========== - -BFD tries to maintain as much symbol information as it can when it -moves information from file to file. BFD passes information to -applications though the `asymbol' structure. When the application -requests the symbol table, BFD reads the table in the native form and -translates parts of it into the internal format. To maintain more than -the information passed to applications, some targets keep some -information "behind the scenes" in a structure only the particular back -end knows about. For example, the coff back end keeps the original -symbol table structure as well as the canonical structure when a BFD is -read in. On output, the coff back end can reconstruct the output symbol -table so that no information is lost, even information unique to coff -which BFD doesn't know or understand. If a coff symbol table were read, -but were written through an a.out back end, all the coff specific -information would be lost. The symbol table of a BFD is not necessarily -read in until a canonicalize request is made. Then the BFD back end -fills in a table provided by the application with pointers to the -canonical information. To output symbols, the application provides BFD -with a table of pointers to pointers to `asymbol's. This allows -applications like the linker to output a symbol as it was read, since -the "behind the scenes" information will be still available. - -* Menu: - -* Reading Symbols:: -* Writing Symbols:: -* Mini Symbols:: -* typedef asymbol:: -* symbol handling functions:: - - -File: bfd.info, Node: Reading Symbols, Next: Writing Symbols, Prev: Symbols, Up: Symbols - -2.7.1 Reading symbols ---------------------- - -There are two stages to reading a symbol table from a BFD: allocating -storage, and the actual reading process. This is an excerpt from an -application which reads the symbol table: - - long storage_needed; - asymbol **symbol_table; - long number_of_symbols; - long i; - - storage_needed = bfd_get_symtab_upper_bound (abfd); - - if (storage_needed < 0) - FAIL - - if (storage_needed == 0) - return; - - symbol_table = xmalloc (storage_needed); - ... - number_of_symbols = - bfd_canonicalize_symtab (abfd, symbol_table); - - if (number_of_symbols < 0) - FAIL - - for (i = 0; i < number_of_symbols; i++) - process_symbol (symbol_table[i]); - - All storage for the symbols themselves is in an objalloc connected -to the BFD; it is freed when the BFD is closed. - - -File: bfd.info, Node: Writing Symbols, Next: Mini Symbols, Prev: Reading Symbols, Up: Symbols - -2.7.2 Writing symbols ---------------------- - -Writing of a symbol table is automatic when a BFD open for writing is -closed. The application attaches a vector of pointers to pointers to -symbols to the BFD being written, and fills in the symbol count. The -close and cleanup code reads through the table provided and performs -all the necessary operations. The BFD output code must always be -provided with an "owned" symbol: one which has come from another BFD, -or one which has been created using `bfd_make_empty_symbol'. Here is an -example showing the creation of a symbol table with only one element: - - #include "bfd.h" - int main (void) - { - bfd *abfd; - asymbol *ptrs[2]; - asymbol *new; - - abfd = bfd_openw ("foo","a.out-sunos-big"); - bfd_set_format (abfd, bfd_object); - new = bfd_make_empty_symbol (abfd); - new->name = "dummy_symbol"; - new->section = bfd_make_section_old_way (abfd, ".text"); - new->flags = BSF_GLOBAL; - new->value = 0x12345; - - ptrs[0] = new; - ptrs[1] = 0; - - bfd_set_symtab (abfd, ptrs, 1); - bfd_close (abfd); - return 0; - } - - ./makesym - nm foo - 00012345 A dummy_symbol - - Many formats cannot represent arbitrary symbol information; for -instance, the `a.out' object format does not allow an arbitrary number -of sections. A symbol pointing to a section which is not one of -`.text', `.data' or `.bss' cannot be described. - - -File: bfd.info, Node: Mini Symbols, Next: typedef asymbol, Prev: Writing Symbols, Up: Symbols - -2.7.3 Mini Symbols ------------------- - -Mini symbols provide read-only access to the symbol table. They use -less memory space, but require more time to access. They can be useful -for tools like nm or objdump, which may have to handle symbol tables of -extremely large executables. - - The `bfd_read_minisymbols' function will read the symbols into -memory in an internal form. It will return a `void *' pointer to a -block of memory, a symbol count, and the size of each symbol. The -pointer is allocated using `malloc', and should be freed by the caller -when it is no longer needed. - - The function `bfd_minisymbol_to_symbol' will take a pointer to a -minisymbol, and a pointer to a structure returned by -`bfd_make_empty_symbol', and return a `asymbol' structure. The return -value may or may not be the same as the value from -`bfd_make_empty_symbol' which was passed in. - - -File: bfd.info, Node: typedef asymbol, Next: symbol handling functions, Prev: Mini Symbols, Up: Symbols - -2.7.4 typedef asymbol ---------------------- - -An `asymbol' has the form: - - - typedef struct bfd_symbol - { - /* A pointer to the BFD which owns the symbol. This information - is necessary so that a back end can work out what additional - information (invisible to the application writer) is carried - with the symbol. - - This field is *almost* redundant, since you can use section->owner - instead, except that some symbols point to the global sections - bfd_{abs,com,und}_section. This could be fixed by making - these globals be per-bfd (or per-target-flavor). FIXME. */ - struct bfd *the_bfd; /* Use bfd_asymbol_bfd(sym) to access this field. */ - - /* The text of the symbol. The name is left alone, and not copied; the - application may not alter it. */ - const char *name; - - /* The value of the symbol. This really should be a union of a - numeric value with a pointer, since some flags indicate that - a pointer to another symbol is stored here. */ - symvalue value; - - /* Attributes of a symbol. */ - #define BSF_NO_FLAGS 0x00 - - /* The symbol has local scope; `static' in `C'. The value - is the offset into the section of the data. */ - #define BSF_LOCAL 0x01 - - /* The symbol has global scope; initialized data in `C'. The - value is the offset into the section of the data. */ - #define BSF_GLOBAL 0x02 - - /* The symbol has global scope and is exported. The value is - the offset into the section of the data. */ - #define BSF_EXPORT BSF_GLOBAL /* No real difference. */ - - /* A normal C symbol would be one of: - `BSF_LOCAL', `BSF_FORT_COMM', `BSF_UNDEFINED' or - `BSF_GLOBAL'. */ - - /* The symbol is a debugging record. The value has an arbitrary - meaning, unless BSF_DEBUGGING_RELOC is also set. */ - #define BSF_DEBUGGING 0x08 - - /* The symbol denotes a function entry point. Used in ELF, - perhaps others someday. */ - #define BSF_FUNCTION 0x10 - - /* Used by the linker. */ - #define BSF_KEEP 0x20 - #define BSF_KEEP_G 0x40 - - /* A weak global symbol, overridable without warnings by - a regular global symbol of the same name. */ - #define BSF_WEAK 0x80 - - /* This symbol was created to point to a section, e.g. ELF's - STT_SECTION symbols. */ - #define BSF_SECTION_SYM 0x100 - - /* The symbol used to be a common symbol, but now it is - allocated. */ - #define BSF_OLD_COMMON 0x200 - - /* The default value for common data. */ - #define BFD_FORT_COMM_DEFAULT_VALUE 0 - - /* In some files the type of a symbol sometimes alters its - location in an output file - ie in coff a `ISFCN' symbol - which is also `C_EXT' symbol appears where it was - declared and not at the end of a section. This bit is set - by the target BFD part to convey this information. */ - #define BSF_NOT_AT_END 0x400 - - /* Signal that the symbol is the label of constructor section. */ - #define BSF_CONSTRUCTOR 0x800 - - /* Signal that the symbol is a warning symbol. The name is a - warning. The name of the next symbol is the one to warn about; - if a reference is made to a symbol with the same name as the next - symbol, a warning is issued by the linker. */ - #define BSF_WARNING 0x1000 - - /* Signal that the symbol is indirect. This symbol is an indirect - pointer to the symbol with the same name as the next symbol. */ - #define BSF_INDIRECT 0x2000 - - /* BSF_FILE marks symbols that contain a file name. This is used - for ELF STT_FILE symbols. */ - #define BSF_FILE 0x4000 - - /* Symbol is from dynamic linking information. */ - #define BSF_DYNAMIC 0x8000 - - /* The symbol denotes a data object. Used in ELF, and perhaps - others someday. */ - #define BSF_OBJECT 0x10000 - - /* This symbol is a debugging symbol. The value is the offset - into the section of the data. BSF_DEBUGGING should be set - as well. */ - #define BSF_DEBUGGING_RELOC 0x20000 - - /* This symbol is thread local. Used in ELF. */ - #define BSF_THREAD_LOCAL 0x40000 - - flagword flags; - - /* A pointer to the section to which this symbol is - relative. This will always be non NULL, there are special - sections for undefined and absolute symbols. */ - struct bfd_section *section; - - /* Back end special data. */ - union - { - void *p; - bfd_vma i; - } - udata; - } - asymbol; - - -File: bfd.info, Node: symbol handling functions, Prev: typedef asymbol, Up: Symbols - -2.7.5 Symbol handling functions -------------------------------- - -2.7.5.1 `bfd_get_symtab_upper_bound' -.................................... - -*Description* -Return the number of bytes required to store a vector of pointers to -`asymbols' for all the symbols in the BFD ABFD, including a terminal -NULL pointer. If there are no symbols in the BFD, then return 0. If an -error occurs, return -1. - #define bfd_get_symtab_upper_bound(abfd) \ - BFD_SEND (abfd, _bfd_get_symtab_upper_bound, (abfd)) - -2.7.5.2 `bfd_is_local_label' -............................ - -*Synopsis* - bfd_boolean bfd_is_local_label (bfd *abfd, asymbol *sym); - *Description* -Return TRUE if the given symbol SYM in the BFD ABFD is a compiler -generated local label, else return FALSE. - -2.7.5.3 `bfd_is_local_label_name' -................................. - -*Synopsis* - bfd_boolean bfd_is_local_label_name (bfd *abfd, const char *name); - *Description* -Return TRUE if a symbol with the name NAME in the BFD ABFD is a -compiler generated local label, else return FALSE. This just checks -whether the name has the form of a local label. - #define bfd_is_local_label_name(abfd, name) \ - BFD_SEND (abfd, _bfd_is_local_label_name, (abfd, name)) - -2.7.5.4 `bfd_is_target_special_symbol' -...................................... - -*Synopsis* - bfd_boolean bfd_is_target_special_symbol (bfd *abfd, asymbol *sym); - *Description* -Return TRUE iff a symbol SYM in the BFD ABFD is something special to -the particular target represented by the BFD. Such symbols should -normally not be mentioned to the user. - #define bfd_is_target_special_symbol(abfd, sym) \ - BFD_SEND (abfd, _bfd_is_target_special_symbol, (abfd, sym)) - -2.7.5.5 `bfd_canonicalize_symtab' -................................. - -*Description* -Read the symbols from the BFD ABFD, and fills in the vector LOCATION -with pointers to the symbols and a trailing NULL. Return the actual -number of symbol pointers, not including the NULL. - #define bfd_canonicalize_symtab(abfd, location) \ - BFD_SEND (abfd, _bfd_canonicalize_symtab, (abfd, location)) - -2.7.5.6 `bfd_set_symtab' -........................ - -*Synopsis* - bfd_boolean bfd_set_symtab - (bfd *abfd, asymbol **location, unsigned int count); - *Description* -Arrange that when the output BFD ABFD is closed, the table LOCATION of -COUNT pointers to symbols will be written. - -2.7.5.7 `bfd_print_symbol_vandf' -................................ - -*Synopsis* - void bfd_print_symbol_vandf (bfd *abfd, void *file, asymbol *symbol); - *Description* -Print the value and flags of the SYMBOL supplied to the stream FILE. - -2.7.5.8 `bfd_make_empty_symbol' -............................... - -*Description* -Create a new `asymbol' structure for the BFD ABFD and return a pointer -to it. - - This routine is necessary because each back end has private -information surrounding the `asymbol'. Building your own `asymbol' and -pointing to it will not create the private information, and will cause -problems later on. - #define bfd_make_empty_symbol(abfd) \ - BFD_SEND (abfd, _bfd_make_empty_symbol, (abfd)) - -2.7.5.9 `_bfd_generic_make_empty_symbol' -........................................ - -*Synopsis* - asymbol *_bfd_generic_make_empty_symbol (bfd *); - *Description* -Create a new `asymbol' structure for the BFD ABFD and return a pointer -to it. Used by core file routines, binary back-end and anywhere else -where no private info is needed. - -2.7.5.10 `bfd_make_debug_symbol' -................................ - -*Description* -Create a new `asymbol' structure for the BFD ABFD, to be used as a -debugging symbol. Further details of its use have yet to be worked out. - #define bfd_make_debug_symbol(abfd,ptr,size) \ - BFD_SEND (abfd, _bfd_make_debug_symbol, (abfd, ptr, size)) - -2.7.5.11 `bfd_decode_symclass' -.............................. - -*Description* -Return a character corresponding to the symbol class of SYMBOL, or '?' -for an unknown class. - - *Synopsis* - int bfd_decode_symclass (asymbol *symbol); - -2.7.5.12 `bfd_is_undefined_symclass' -.................................... - -*Description* -Returns non-zero if the class symbol returned by bfd_decode_symclass -represents an undefined symbol. Returns zero otherwise. - - *Synopsis* - bfd_boolean bfd_is_undefined_symclass (int symclass); - -2.7.5.13 `bfd_symbol_info' -.......................... - -*Description* -Fill in the basic info about symbol that nm needs. Additional info may -be added by the back-ends after calling this function. - - *Synopsis* - void bfd_symbol_info (asymbol *symbol, symbol_info *ret); - -2.7.5.14 `bfd_copy_private_symbol_data' -....................................... - -*Synopsis* - bfd_boolean bfd_copy_private_symbol_data - (bfd *ibfd, asymbol *isym, bfd *obfd, asymbol *osym); - *Description* -Copy private symbol information from ISYM in the BFD IBFD to the symbol -OSYM in the BFD OBFD. Return `TRUE' on success, `FALSE' on error. -Possible error returns are: - - * `bfd_error_no_memory' - Not enough memory exists to create private - data for OSEC. - - #define bfd_copy_private_symbol_data(ibfd, isymbol, obfd, osymbol) \ - BFD_SEND (obfd, _bfd_copy_private_symbol_data, \ - (ibfd, isymbol, obfd, osymbol)) - - -File: bfd.info, Node: Archives, Next: Formats, Prev: Symbols, Up: BFD front end - -2.8 Archives -============ - -*Description* -An archive (or library) is just another BFD. It has a symbol table, -although there's not much a user program will do with it. - - The big difference between an archive BFD and an ordinary BFD is -that the archive doesn't have sections. Instead it has a chain of BFDs -that are considered its contents. These BFDs can be manipulated like -any other. The BFDs contained in an archive opened for reading will -all be opened for reading. You may put either input or output BFDs -into an archive opened for output; they will be handled correctly when -the archive is closed. - - Use `bfd_openr_next_archived_file' to step through the contents of -an archive opened for input. You don't have to read the entire archive -if you don't want to! Read it until you find what you want. - - Archive contents of output BFDs are chained through the `next' -pointer in a BFD. The first one is findable through the `archive_head' -slot of the archive. Set it with `bfd_set_archive_head' (q.v.). A -given BFD may be in only one open output archive at a time. - - As expected, the BFD archive code is more general than the archive -code of any given environment. BFD archives may contain files of -different formats (e.g., a.out and coff) and even different -architectures. You may even place archives recursively into archives! - - This can cause unexpected confusion, since some archive formats are -more expressive than others. For instance, Intel COFF archives can -preserve long filenames; SunOS a.out archives cannot. If you move a -file from the first to the second format and back again, the filename -may be truncated. Likewise, different a.out environments have different -conventions as to how they truncate filenames, whether they preserve -directory names in filenames, etc. When interoperating with native -tools, be sure your files are homogeneous. - - Beware: most of these formats do not react well to the presence of -spaces in filenames. We do the best we can, but can't always handle -this case due to restrictions in the format of archives. Many Unix -utilities are braindead in regards to spaces and such in filenames -anyway, so this shouldn't be much of a restriction. - - Archives are supported in BFD in `archive.c'. - -2.8.0.1 `bfd_get_next_mapent' -............................. - -*Synopsis* - symindex bfd_get_next_mapent - (bfd *abfd, symindex previous, carsym **sym); - *Description* -Step through archive ABFD's symbol table (if it has one). Successively -update SYM with the next symbol's information, returning that symbol's -(internal) index into the symbol table. - - Supply `BFD_NO_MORE_SYMBOLS' as the PREVIOUS entry to get the first -one; returns `BFD_NO_MORE_SYMBOLS' when you've already got the last one. - - A `carsym' is a canonical archive symbol. The only user-visible -element is its name, a null-terminated string. - -2.8.0.2 `bfd_set_archive_head' -.............................. - -*Synopsis* - bfd_boolean bfd_set_archive_head (bfd *output, bfd *new_head); - *Description* -Set the head of the chain of BFDs contained in the archive OUTPUT to -NEW_HEAD. - -2.8.0.3 `bfd_openr_next_archived_file' -...................................... - -*Synopsis* - bfd *bfd_openr_next_archived_file (bfd *archive, bfd *previous); - *Description* -Provided a BFD, ARCHIVE, containing an archive and NULL, open an input -BFD on the first contained element and returns that. Subsequent calls -should pass the archive and the previous return value to return a -created BFD to the next contained element. NULL is returned when there -are no more. - - -File: bfd.info, Node: Formats, Next: Relocations, Prev: Archives, Up: BFD front end - -2.9 File formats -================ - -A format is a BFD concept of high level file contents type. The formats -supported by BFD are: - - * `bfd_object' - The BFD may contain data, symbols, relocations and debug info. - - * `bfd_archive' - The BFD contains other BFDs and an optional index. - - * `bfd_core' - The BFD contains the result of an executable core dump. - -2.9.0.1 `bfd_check_format' -.......................... - -*Synopsis* - bfd_boolean bfd_check_format (bfd *abfd, bfd_format format); - *Description* -Verify if the file attached to the BFD ABFD is compatible with the -format FORMAT (i.e., one of `bfd_object', `bfd_archive' or `bfd_core'). - - If the BFD has been set to a specific target before the call, only -the named target and format combination is checked. If the target has -not been set, or has been set to `default', then all the known target -backends is interrogated to determine a match. If the default target -matches, it is used. If not, exactly one target must recognize the -file, or an error results. - - The function returns `TRUE' on success, otherwise `FALSE' with one -of the following error codes: - - * `bfd_error_invalid_operation' - if `format' is not one of - `bfd_object', `bfd_archive' or `bfd_core'. - - * `bfd_error_system_call' - if an error occured during a read - even - some file mismatches can cause bfd_error_system_calls. - - * `file_not_recognised' - none of the backends recognised the file - format. - - * `bfd_error_file_ambiguously_recognized' - more than one backend - recognised the file format. - -2.9.0.2 `bfd_check_format_matches' -.................................. - -*Synopsis* - bfd_boolean bfd_check_format_matches - (bfd *abfd, bfd_format format, char ***matching); - *Description* -Like `bfd_check_format', except when it returns FALSE with `bfd_errno' -set to `bfd_error_file_ambiguously_recognized'. In that case, if -MATCHING is not NULL, it will be filled in with a NULL-terminated list -of the names of the formats that matched, allocated with `malloc'. -Then the user may choose a format and try again. - - When done with the list that MATCHING points to, the caller should -free it. - -2.9.0.3 `bfd_set_format' -........................ - -*Synopsis* - bfd_boolean bfd_set_format (bfd *abfd, bfd_format format); - *Description* -This function sets the file format of the BFD ABFD to the format -FORMAT. If the target set in the BFD does not support the format -requested, the format is invalid, or the BFD is not open for writing, -then an error occurs. - -2.9.0.4 `bfd_format_string' -........................... - -*Synopsis* - const char *bfd_format_string (bfd_format format); - *Description* -Return a pointer to a const string `invalid', `object', `archive', -`core', or `unknown', depending upon the value of FORMAT. - - -File: bfd.info, Node: Relocations, Next: Core Files, Prev: Formats, Up: BFD front end - -2.10 Relocations -================ - -BFD maintains relocations in much the same way it maintains symbols: -they are left alone until required, then read in en-masse and -translated into an internal form. A common routine -`bfd_perform_relocation' acts upon the canonical form to do the fixup. - - Relocations are maintained on a per section basis, while symbols are -maintained on a per BFD basis. - - All that a back end has to do to fit the BFD interface is to create -a `struct reloc_cache_entry' for each relocation in a particular -section, and fill in the right bits of the structures. - -* Menu: - -* typedef arelent:: -* howto manager:: - - -File: bfd.info, Node: typedef arelent, Next: howto manager, Prev: Relocations, Up: Relocations - -2.10.1 typedef arelent ----------------------- - -This is the structure of a relocation entry: - - - typedef enum bfd_reloc_status - { - /* No errors detected. */ - bfd_reloc_ok, - - /* The relocation was performed, but there was an overflow. */ - bfd_reloc_overflow, - - /* The address to relocate was not within the section supplied. */ - bfd_reloc_outofrange, - - /* Used by special functions. */ - bfd_reloc_continue, - - /* Unsupported relocation size requested. */ - bfd_reloc_notsupported, - - /* Unused. */ - bfd_reloc_other, - - /* The symbol to relocate against was undefined. */ - bfd_reloc_undefined, - - /* The relocation was performed, but may not be ok - presently - generated only when linking i960 coff files with i960 b.out - symbols. If this type is returned, the error_message argument - to bfd_perform_relocation will be set. */ - bfd_reloc_dangerous - } - bfd_reloc_status_type; - - - typedef struct reloc_cache_entry - { - /* A pointer into the canonical table of pointers. */ - struct bfd_symbol **sym_ptr_ptr; - - /* offset in section. */ - bfd_size_type address; - - /* addend for relocation value. */ - bfd_vma addend; - - /* Pointer to how to perform the required relocation. */ - reloc_howto_type *howto; - - } - arelent; - *Description* -Here is a description of each of the fields within an `arelent': - - * `sym_ptr_ptr' - The symbol table pointer points to a pointer to the symbol -associated with the relocation request. It is the pointer into the -table returned by the back end's `canonicalize_symtab' action. *Note -Symbols::. The symbol is referenced through a pointer to a pointer so -that tools like the linker can fix up all the symbols of the same name -by modifying only one pointer. The relocation routine looks in the -symbol and uses the base of the section the symbol is attached to and -the value of the symbol as the initial relocation offset. If the symbol -pointer is zero, then the section provided is looked up. - - * `address' - The `address' field gives the offset in bytes from the base of the -section data which owns the relocation record to the first byte of -relocatable information. The actual data relocated will be relative to -this point; for example, a relocation type which modifies the bottom -two bytes of a four byte word would not touch the first byte pointed to -in a big endian world. - - * `addend' - The `addend' is a value provided by the back end to be added (!) to -the relocation offset. Its interpretation is dependent upon the howto. -For example, on the 68k the code: - - char foo[]; - main() - { - return foo[0x12345678]; - } - - Could be compiled into: - - linkw fp,#-4 - moveb @#12345678,d0 - extbl d0 - unlk fp - rts - - This could create a reloc pointing to `foo', but leave the offset in -the data, something like: - - RELOCATION RECORDS FOR [.text]: - offset type value - 00000006 32 _foo - - 00000000 4e56 fffc ; linkw fp,#-4 - 00000004 1039 1234 5678 ; moveb @#12345678,d0 - 0000000a 49c0 ; extbl d0 - 0000000c 4e5e ; unlk fp - 0000000e 4e75 ; rts - - Using coff and an 88k, some instructions don't have enough space in -them to represent the full address range, and pointers have to be -loaded in two parts. So you'd get something like: - - or.u r13,r0,hi16(_foo+0x12345678) - ld.b r2,r13,lo16(_foo+0x12345678) - jmp r1 - - This should create two relocs, both pointing to `_foo', and with -0x12340000 in their addend field. The data would consist of: - - RELOCATION RECORDS FOR [.text]: - offset type value - 00000002 HVRT16 _foo+0x12340000 - 00000006 LVRT16 _foo+0x12340000 - - 00000000 5da05678 ; or.u r13,r0,0x5678 - 00000004 1c4d5678 ; ld.b r2,r13,0x5678 - 00000008 f400c001 ; jmp r1 - - The relocation routine digs out the value from the data, adds it to -the addend to get the original offset, and then adds the value of -`_foo'. Note that all 32 bits have to be kept around somewhere, to cope -with carry from bit 15 to bit 16. - - One further example is the sparc and the a.out format. The sparc has -a similar problem to the 88k, in that some instructions don't have room -for an entire offset, but on the sparc the parts are created in odd -sized lumps. The designers of the a.out format chose to not use the -data within the section for storing part of the offset; all the offset -is kept within the reloc. Anything in the data should be ignored. - - save %sp,-112,%sp - sethi %hi(_foo+0x12345678),%g2 - ldsb [%g2+%lo(_foo+0x12345678)],%i0 - ret - restore - - Both relocs contain a pointer to `foo', and the offsets contain junk. - - RELOCATION RECORDS FOR [.text]: - offset type value - 00000004 HI22 _foo+0x12345678 - 00000008 LO10 _foo+0x12345678 - - 00000000 9de3bf90 ; save %sp,-112,%sp - 00000004 05000000 ; sethi %hi(_foo+0),%g2 - 00000008 f048a000 ; ldsb [%g2+%lo(_foo+0)],%i0 - 0000000c 81c7e008 ; ret - 00000010 81e80000 ; restore - - * `howto' - The `howto' field can be imagined as a relocation instruction. It is -a pointer to a structure which contains information on what to do with -all of the other information in the reloc record and data section. A -back end would normally have a relocation instruction set and turn -relocations into pointers to the correct structure on input - but it -would be possible to create each howto field on demand. - -2.10.1.1 `enum complain_overflow' -................................. - -Indicates what sort of overflow checking should be done when performing -a relocation. - - - enum complain_overflow - { - /* Do not complain on overflow. */ - complain_overflow_dont, - - /* Complain if the bitfield overflows, whether it is considered - as signed or unsigned. */ - complain_overflow_bitfield, - - /* Complain if the value overflows when considered as signed - number. */ - complain_overflow_signed, - - /* Complain if the value overflows when considered as an - unsigned number. */ - complain_overflow_unsigned - }; - -2.10.1.2 `reloc_howto_type' -........................... - -The `reloc_howto_type' is a structure which contains all the -information that libbfd needs to know to tie up a back end's data. - - struct bfd_symbol; /* Forward declaration. */ - - struct reloc_howto_struct - { - /* The type field has mainly a documentary use - the back end can - do what it wants with it, though normally the back end's - external idea of what a reloc number is stored - in this field. For example, a PC relative word relocation - in a coff environment has the type 023 - because that's - what the outside world calls a R_PCRWORD reloc. */ - unsigned int type; - - /* The value the final relocation is shifted right by. This drops - unwanted data from the relocation. */ - unsigned int rightshift; - - /* The size of the item to be relocated. This is *not* a - power-of-two measure. To get the number of bytes operated - on by a type of relocation, use bfd_get_reloc_size. */ - int size; - - /* The number of bits in the item to be relocated. This is used - when doing overflow checking. */ - unsigned int bitsize; - - /* Notes that the relocation is relative to the location in the - data section of the addend. The relocation function will - subtract from the relocation value the address of the location - being relocated. */ - bfd_boolean pc_relative; - - /* The bit position of the reloc value in the destination. - The relocated value is left shifted by this amount. */ - unsigned int bitpos; - - /* What type of overflow error should be checked for when - relocating. */ - enum complain_overflow complain_on_overflow; - - /* If this field is non null, then the supplied function is - called rather than the normal function. This allows really - strange relocation methods to be accommodated (e.g., i960 callj - instructions). */ - bfd_reloc_status_type (*special_function) - (bfd *, arelent *, struct bfd_symbol *, void *, asection *, - bfd *, char **); - - /* The textual name of the relocation type. */ - char *name; - - /* Some formats record a relocation addend in the section contents - rather than with the relocation. For ELF formats this is the - distinction between USE_REL and USE_RELA (though the code checks - for USE_REL == 1/0). The value of this field is TRUE if the - addend is recorded with the section contents; when performing a - partial link (ld -r) the section contents (the data) will be - modified. The value of this field is FALSE if addends are - recorded with the relocation (in arelent.addend); when performing - a partial link the relocation will be modified. - All relocations for all ELF USE_RELA targets should set this field - to FALSE (values of TRUE should be looked on with suspicion). - However, the converse is not true: not all relocations of all ELF - USE_REL targets set this field to TRUE. Why this is so is peculiar - to each particular target. For relocs that aren't used in partial - links (e.g. GOT stuff) it doesn't matter what this is set to. */ - bfd_boolean partial_inplace; - - /* src_mask selects the part of the instruction (or data) to be used - in the relocation sum. If the target relocations don't have an - addend in the reloc, eg. ELF USE_REL, src_mask will normally equal - dst_mask to extract the addend from the section contents. If - relocations do have an addend in the reloc, eg. ELF USE_RELA, this - field should be zero. Non-zero values for ELF USE_RELA targets are - bogus as in those cases the value in the dst_mask part of the - section contents should be treated as garbage. */ - bfd_vma src_mask; - - /* dst_mask selects which parts of the instruction (or data) are - replaced with a relocated value. */ - bfd_vma dst_mask; - - /* When some formats create PC relative instructions, they leave - the value of the pc of the place being relocated in the offset - slot of the instruction, so that a PC relative relocation can - be made just by adding in an ordinary offset (e.g., sun3 a.out). - Some formats leave the displacement part of an instruction - empty (e.g., m88k bcs); this flag signals the fact. */ - bfd_boolean pcrel_offset; - }; - -2.10.1.3 `The HOWTO Macro' -.......................... - -*Description* -The HOWTO define is horrible and will go away. - #define HOWTO(C, R, S, B, P, BI, O, SF, NAME, INPLACE, MASKSRC, MASKDST, PC) \ - { (unsigned) C, R, S, B, P, BI, O, SF, NAME, INPLACE, MASKSRC, MASKDST, PC } - - *Description* -And will be replaced with the totally magic way. But for the moment, we -are compatible, so do it this way. - #define NEWHOWTO(FUNCTION, NAME, SIZE, REL, IN) \ - HOWTO (0, 0, SIZE, 0, REL, 0, complain_overflow_dont, FUNCTION, \ - NAME, FALSE, 0, 0, IN) - - *Description* -This is used to fill in an empty howto entry in an array. - #define EMPTY_HOWTO(C) \ - HOWTO ((C), 0, 0, 0, FALSE, 0, complain_overflow_dont, NULL, \ - NULL, FALSE, 0, 0, FALSE) - - *Description* -Helper routine to turn a symbol into a relocation value. - #define HOWTO_PREPARE(relocation, symbol) \ - { \ - if (symbol != NULL) \ - { \ - if (bfd_is_com_section (symbol->section)) \ - { \ - relocation = 0; \ - } \ - else \ - { \ - relocation = symbol->value; \ - } \ - } \ - } - -2.10.1.4 `bfd_get_reloc_size' -............................. - -*Synopsis* - unsigned int bfd_get_reloc_size (reloc_howto_type *); - *Description* -For a reloc_howto_type that operates on a fixed number of bytes, this -returns the number of bytes operated on. - -2.10.1.5 `arelent_chain' -........................ - -*Description* -How relocs are tied together in an `asection': - typedef struct relent_chain - { - arelent relent; - struct relent_chain *next; - } - arelent_chain; - -2.10.1.6 `bfd_check_overflow' -............................. - -*Synopsis* - bfd_reloc_status_type bfd_check_overflow - (enum complain_overflow how, - unsigned int bitsize, - unsigned int rightshift, - unsigned int addrsize, - bfd_vma relocation); - *Description* -Perform overflow checking on RELOCATION which has BITSIZE significant -bits and will be shifted right by RIGHTSHIFT bits, on a machine with -addresses containing ADDRSIZE significant bits. The result is either of -`bfd_reloc_ok' or `bfd_reloc_overflow'. - -2.10.1.7 `bfd_perform_relocation' -................................. - -*Synopsis* - bfd_reloc_status_type bfd_perform_relocation - (bfd *abfd, - arelent *reloc_entry, - void *data, - asection *input_section, - bfd *output_bfd, - char **error_message); - *Description* -If OUTPUT_BFD is supplied to this function, the generated image will be -relocatable; the relocations are copied to the output file after they -have been changed to reflect the new state of the world. There are two -ways of reflecting the results of partial linkage in an output file: by -modifying the output data in place, and by modifying the relocation -record. Some native formats (e.g., basic a.out and basic coff) have no -way of specifying an addend in the relocation type, so the addend has -to go in the output data. This is no big deal since in these formats -the output data slot will always be big enough for the addend. Complex -reloc types with addends were invented to solve just this problem. The -ERROR_MESSAGE argument is set to an error message if this return -`bfd_reloc_dangerous'. - -2.10.1.8 `bfd_install_relocation' -................................. - -*Synopsis* - bfd_reloc_status_type bfd_install_relocation - (bfd *abfd, - arelent *reloc_entry, - void *data, bfd_vma data_start, - asection *input_section, - char **error_message); - *Description* -This looks remarkably like `bfd_perform_relocation', except it does not -expect that the section contents have been filled in. I.e., it's -suitable for use when creating, rather than applying a relocation. - - For now, this function should be considered reserved for the -assembler. - - -File: bfd.info, Node: howto manager, Prev: typedef arelent, Up: Relocations - -2.11 The howto manager -====================== - -When an application wants to create a relocation, but doesn't know what -the target machine might call it, it can find out by using this bit of -code. - -2.11.0.1 `bfd_reloc_code_type' -.............................. - -*Description* -The insides of a reloc code. The idea is that, eventually, there will -be one enumerator for every type of relocation we ever do. Pass one of -these values to `bfd_reloc_type_lookup', and it'll return a howto -pointer. - - This does mean that the application must determine the correct -enumerator value; you can't get a howto pointer from a random set of -attributes. - - Here are the possible values for `enum bfd_reloc_code_real': - - -- : BFD_RELOC_64 - -- : BFD_RELOC_32 - -- : BFD_RELOC_26 - -- : BFD_RELOC_24 - -- : BFD_RELOC_16 - -- : BFD_RELOC_14 - -- : BFD_RELOC_8 - Basic absolute relocations of N bits. - - -- : BFD_RELOC_64_PCREL - -- : BFD_RELOC_32_PCREL - -- : BFD_RELOC_24_PCREL - -- : BFD_RELOC_16_PCREL - -- : BFD_RELOC_12_PCREL - -- : BFD_RELOC_8_PCREL - PC-relative relocations. Sometimes these are relative to the - address of the relocation itself; sometimes they are relative to - the start of the section containing the relocation. It depends on - the specific target. - - The 24-bit relocation is used in some Intel 960 configurations. - - -- : BFD_RELOC_32_SECREL - Section relative relocations. Some targets need this for DWARF2. - - -- : BFD_RELOC_32_GOT_PCREL - -- : BFD_RELOC_16_GOT_PCREL - -- : BFD_RELOC_8_GOT_PCREL - -- : BFD_RELOC_32_GOTOFF - -- : BFD_RELOC_16_GOTOFF - -- : BFD_RELOC_LO16_GOTOFF - -- : BFD_RELOC_HI16_GOTOFF - -- : BFD_RELOC_HI16_S_GOTOFF - -- : BFD_RELOC_8_GOTOFF - -- : BFD_RELOC_64_PLT_PCREL - -- : BFD_RELOC_32_PLT_PCREL - -- : BFD_RELOC_24_PLT_PCREL - -- : BFD_RELOC_16_PLT_PCREL - -- : BFD_RELOC_8_PLT_PCREL - -- : BFD_RELOC_64_PLTOFF - -- : BFD_RELOC_32_PLTOFF - -- : BFD_RELOC_16_PLTOFF - -- : BFD_RELOC_LO16_PLTOFF - -- : BFD_RELOC_HI16_PLTOFF - -- : BFD_RELOC_HI16_S_PLTOFF - -- : BFD_RELOC_8_PLTOFF - For ELF. - - -- : BFD_RELOC_68K_GLOB_DAT - -- : BFD_RELOC_68K_JMP_SLOT - -- : BFD_RELOC_68K_RELATIVE - Relocations used by 68K ELF. - - -- : BFD_RELOC_32_BASEREL - -- : BFD_RELOC_16_BASEREL - -- : BFD_RELOC_LO16_BASEREL - -- : BFD_RELOC_HI16_BASEREL - -- : BFD_RELOC_HI16_S_BASEREL - -- : BFD_RELOC_8_BASEREL - -- : BFD_RELOC_RVA - Linkage-table relative. - - -- : BFD_RELOC_8_FFnn - Absolute 8-bit relocation, but used to form an address like 0xFFnn. - - -- : BFD_RELOC_32_PCREL_S2 - -- : BFD_RELOC_16_PCREL_S2 - -- : BFD_RELOC_23_PCREL_S2 - These PC-relative relocations are stored as word displacements - - i.e., byte displacements shifted right two bits. The 30-bit word - displacement (<<32_PCREL_S2>> - 32 bits, shifted 2) is used on the - SPARC. (SPARC tools generally refer to this as <<WDISP30>>.) The - signed 16-bit displacement is used on the MIPS, and the 23-bit - displacement is used on the Alpha. - - -- : BFD_RELOC_HI22 - -- : BFD_RELOC_LO10 - High 22 bits and low 10 bits of 32-bit value, placed into lower - bits of the target word. These are used on the SPARC. - - -- : BFD_RELOC_GPREL16 - -- : BFD_RELOC_GPREL32 - For systems that allocate a Global Pointer register, these are - displacements off that register. These relocation types are - handled specially, because the value the register will have is - decided relatively late. - - -- : BFD_RELOC_I960_CALLJ - Reloc types used for i960/b.out. - - -- : BFD_RELOC_NONE - -- : BFD_RELOC_SPARC_WDISP22 - -- : BFD_RELOC_SPARC22 - -- : BFD_RELOC_SPARC13 - -- : BFD_RELOC_SPARC_GOT10 - -- : BFD_RELOC_SPARC_GOT13 - -- : BFD_RELOC_SPARC_GOT22 - -- : BFD_RELOC_SPARC_PC10 - -- : BFD_RELOC_SPARC_PC22 - -- : BFD_RELOC_SPARC_WPLT30 - -- : BFD_RELOC_SPARC_COPY - -- : BFD_RELOC_SPARC_GLOB_DAT - -- : BFD_RELOC_SPARC_JMP_SLOT - -- : BFD_RELOC_SPARC_RELATIVE - -- : BFD_RELOC_SPARC_UA16 - -- : BFD_RELOC_SPARC_UA32 - -- : BFD_RELOC_SPARC_UA64 - SPARC ELF relocations. There is probably some overlap with other - relocation types already defined. - - -- : BFD_RELOC_SPARC_BASE13 - -- : BFD_RELOC_SPARC_BASE22 - I think these are specific to SPARC a.out (e.g., Sun 4). - - -- : BFD_RELOC_SPARC_64 - -- : BFD_RELOC_SPARC_10 - -- : BFD_RELOC_SPARC_11 - -- : BFD_RELOC_SPARC_OLO10 - -- : BFD_RELOC_SPARC_HH22 - -- : BFD_RELOC_SPARC_HM10 - -- : BFD_RELOC_SPARC_LM22 - -- : BFD_RELOC_SPARC_PC_HH22 - -- : BFD_RELOC_SPARC_PC_HM10 - -- : BFD_RELOC_SPARC_PC_LM22 - -- : BFD_RELOC_SPARC_WDISP16 - -- : BFD_RELOC_SPARC_WDISP19 - -- : BFD_RELOC_SPARC_7 - -- : BFD_RELOC_SPARC_6 - -- : BFD_RELOC_SPARC_5 - -- : BFD_RELOC_SPARC_DISP64 - -- : BFD_RELOC_SPARC_PLT32 - -- : BFD_RELOC_SPARC_PLT64 - -- : BFD_RELOC_SPARC_HIX22 - -- : BFD_RELOC_SPARC_LOX10 - -- : BFD_RELOC_SPARC_H44 - -- : BFD_RELOC_SPARC_M44 - -- : BFD_RELOC_SPARC_L44 - -- : BFD_RELOC_SPARC_REGISTER - SPARC64 relocations - - -- : BFD_RELOC_SPARC_REV32 - SPARC little endian relocation - - -- : BFD_RELOC_SPARC_TLS_GD_HI22 - -- : BFD_RELOC_SPARC_TLS_GD_LO10 - -- : BFD_RELOC_SPARC_TLS_GD_ADD - -- : BFD_RELOC_SPARC_TLS_GD_CALL - -- : BFD_RELOC_SPARC_TLS_LDM_HI22 - -- : BFD_RELOC_SPARC_TLS_LDM_LO10 - -- : BFD_RELOC_SPARC_TLS_LDM_ADD - -- : BFD_RELOC_SPARC_TLS_LDM_CALL - -- : BFD_RELOC_SPARC_TLS_LDO_HIX22 - -- : BFD_RELOC_SPARC_TLS_LDO_LOX10 - -- : BFD_RELOC_SPARC_TLS_LDO_ADD - -- : BFD_RELOC_SPARC_TLS_IE_HI22 - -- : BFD_RELOC_SPARC_TLS_IE_LO10 - -- : BFD_RELOC_SPARC_TLS_IE_LD - -- : BFD_RELOC_SPARC_TLS_IE_LDX - -- : BFD_RELOC_SPARC_TLS_IE_ADD - -- : BFD_RELOC_SPARC_TLS_LE_HIX22 - -- : BFD_RELOC_SPARC_TLS_LE_LOX10 - -- : BFD_RELOC_SPARC_TLS_DTPMOD32 - -- : BFD_RELOC_SPARC_TLS_DTPMOD64 - -- : BFD_RELOC_SPARC_TLS_DTPOFF32 - -- : BFD_RELOC_SPARC_TLS_DTPOFF64 - -- : BFD_RELOC_SPARC_TLS_TPOFF32 - -- : BFD_RELOC_SPARC_TLS_TPOFF64 - SPARC TLS relocations - - -- : BFD_RELOC_ALPHA_GPDISP_HI16 - Alpha ECOFF and ELF relocations. Some of these treat the symbol or - "addend" in some special way. For GPDISP_HI16 ("gpdisp") - relocations, the symbol is ignored when writing; when reading, it - will be the absolute section symbol. The addend is the - displacement in bytes of the "lda" instruction from the "ldah" - instruction (which is at the address of this reloc). - - -- : BFD_RELOC_ALPHA_GPDISP_LO16 - For GPDISP_LO16 ("ignore") relocations, the symbol is handled as - with GPDISP_HI16 relocs. The addend is ignored when writing the - relocations out, and is filled in with the file's GP value on - reading, for convenience. - - -- : BFD_RELOC_ALPHA_GPDISP - The ELF GPDISP relocation is exactly the same as the GPDISP_HI16 - relocation except that there is no accompanying GPDISP_LO16 - relocation. - - -- : BFD_RELOC_ALPHA_LITERAL - -- : BFD_RELOC_ALPHA_ELF_LITERAL - -- : BFD_RELOC_ALPHA_LITUSE - The Alpha LITERAL/LITUSE relocs are produced by a symbol reference; - the assembler turns it into a LDQ instruction to load the address - of the symbol, and then fills in a register in the real - instruction. - - The LITERAL reloc, at the LDQ instruction, refers to the .lita - section symbol. The addend is ignored when writing, but is filled - in with the file's GP value on reading, for convenience, as with - the GPDISP_LO16 reloc. - - The ELF_LITERAL reloc is somewhere between 16_GOTOFF and - GPDISP_LO16. It should refer to the symbol to be referenced, as - with 16_GOTOFF, but it generates output not based on the position - within the .got section, but relative to the GP value chosen for - the file during the final link stage. - - The LITUSE reloc, on the instruction using the loaded address, - gives information to the linker that it might be able to use to - optimize away some literal section references. The symbol is - ignored (read as the absolute section symbol), and the "addend" - indicates the type of instruction using the register: 1 - "memory" - fmt insn 2 - byte-manipulation (byte offset reg) 3 - jsr (target - of branch) - - -- : BFD_RELOC_ALPHA_HINT - The HINT relocation indicates a value that should be filled into - the "hint" field of a jmp/jsr/ret instruction, for possible branch- - prediction logic which may be provided on some processors. - - -- : BFD_RELOC_ALPHA_LINKAGE - The LINKAGE relocation outputs a linkage pair in the object file, - which is filled by the linker. - - -- : BFD_RELOC_ALPHA_CODEADDR - The CODEADDR relocation outputs a STO_CA in the object file, which - is filled by the linker. - - -- : BFD_RELOC_ALPHA_GPREL_HI16 - -- : BFD_RELOC_ALPHA_GPREL_LO16 - The GPREL_HI/LO relocations together form a 32-bit offset from the - GP register. - - -- : BFD_RELOC_ALPHA_BRSGP - Like BFD_RELOC_23_PCREL_S2, except that the source and target must - share a common GP, and the target address is adjusted for - STO_ALPHA_STD_GPLOAD. - - -- : BFD_RELOC_ALPHA_TLSGD - -- : BFD_RELOC_ALPHA_TLSLDM - -- : BFD_RELOC_ALPHA_DTPMOD64 - -- : BFD_RELOC_ALPHA_GOTDTPREL16 - -- : BFD_RELOC_ALPHA_DTPREL64 - -- : BFD_RELOC_ALPHA_DTPREL_HI16 - -- : BFD_RELOC_ALPHA_DTPREL_LO16 - -- : BFD_RELOC_ALPHA_DTPREL16 - -- : BFD_RELOC_ALPHA_GOTTPREL16 - -- : BFD_RELOC_ALPHA_TPREL64 - -- : BFD_RELOC_ALPHA_TPREL_HI16 - -- : BFD_RELOC_ALPHA_TPREL_LO16 - -- : BFD_RELOC_ALPHA_TPREL16 - Alpha thread-local storage relocations. - - -- : BFD_RELOC_MIPS_JMP - Bits 27..2 of the relocation address shifted right 2 bits; simple - reloc otherwise. - - -- : BFD_RELOC_MIPS16_JMP - The MIPS16 jump instruction. - - -- : BFD_RELOC_MIPS16_GPREL - MIPS16 GP relative reloc. - - -- : BFD_RELOC_HI16 - High 16 bits of 32-bit value; simple reloc. - - -- : BFD_RELOC_HI16_S - High 16 bits of 32-bit value but the low 16 bits will be sign - extended and added to form the final result. If the low 16 bits - form a negative number, we need to add one to the high value to - compensate for the borrow when the low bits are added. - - -- : BFD_RELOC_LO16 - Low 16 bits. - - -- : BFD_RELOC_MIPS16_HI16 - MIPS16 high 16 bits of 32-bit value. - - -- : BFD_RELOC_MIPS16_HI16_S - MIPS16 high 16 bits of 32-bit value but the low 16 bits will be - sign extended and added to form the final result. If the low 16 - bits form a negative number, we need to add one to the high value - to compensate for the borrow when the low bits are added. - - -- : BFD_RELOC_MIPS16_LO16 - MIPS16 low 16 bits. - - -- : BFD_RELOC_MIPS_LITERAL - Relocation against a MIPS literal section. - - -- : BFD_RELOC_MIPS_GOT16 - -- : BFD_RELOC_MIPS_CALL16 - -- : BFD_RELOC_MIPS_GOT_HI16 - -- : BFD_RELOC_MIPS_GOT_LO16 - -- : BFD_RELOC_MIPS_CALL_HI16 - -- : BFD_RELOC_MIPS_CALL_LO16 - -- : BFD_RELOC_MIPS_SUB - -- : BFD_RELOC_MIPS_GOT_PAGE - -- : BFD_RELOC_MIPS_GOT_OFST - -- : BFD_RELOC_MIPS_GOT_DISP - -- : BFD_RELOC_MIPS_SHIFT5 - -- : BFD_RELOC_MIPS_SHIFT6 - -- : BFD_RELOC_MIPS_INSERT_A - -- : BFD_RELOC_MIPS_INSERT_B - -- : BFD_RELOC_MIPS_DELETE - -- : BFD_RELOC_MIPS_HIGHEST - -- : BFD_RELOC_MIPS_HIGHER - -- : BFD_RELOC_MIPS_SCN_DISP - -- : BFD_RELOC_MIPS_REL16 - -- : BFD_RELOC_MIPS_RELGOT - -- : BFD_RELOC_MIPS_JALR - -- : BFD_RELOC_MIPS_TLS_DTPMOD32 - -- : BFD_RELOC_MIPS_TLS_DTPREL32 - -- : BFD_RELOC_MIPS_TLS_DTPMOD64 - -- : BFD_RELOC_MIPS_TLS_DTPREL64 - -- : BFD_RELOC_MIPS_TLS_GD - -- : BFD_RELOC_MIPS_TLS_LDM - -- : BFD_RELOC_MIPS_TLS_DTPREL_HI16 - -- : BFD_RELOC_MIPS_TLS_DTPREL_LO16 - -- : BFD_RELOC_MIPS_TLS_GOTTPREL - -- : BFD_RELOC_MIPS_TLS_TPREL32 - -- : BFD_RELOC_MIPS_TLS_TPREL64 - -- : BFD_RELOC_MIPS_TLS_TPREL_HI16 - -- : BFD_RELOC_MIPS_TLS_TPREL_LO16 - MIPS ELF relocations. - - -- : BFD_RELOC_FRV_LABEL16 - -- : BFD_RELOC_FRV_LABEL24 - -- : BFD_RELOC_FRV_LO16 - -- : BFD_RELOC_FRV_HI16 - -- : BFD_RELOC_FRV_GPREL12 - -- : BFD_RELOC_FRV_GPRELU12 - -- : BFD_RELOC_FRV_GPREL32 - -- : BFD_RELOC_FRV_GPRELHI - -- : BFD_RELOC_FRV_GPRELLO - -- : BFD_RELOC_FRV_GOT12 - -- : BFD_RELOC_FRV_GOTHI - -- : BFD_RELOC_FRV_GOTLO - -- : BFD_RELOC_FRV_FUNCDESC - -- : BFD_RELOC_FRV_FUNCDESC_GOT12 - -- : BFD_RELOC_FRV_FUNCDESC_GOTHI - -- : BFD_RELOC_FRV_FUNCDESC_GOTLO - -- : BFD_RELOC_FRV_FUNCDESC_VALUE - -- : BFD_RELOC_FRV_FUNCDESC_GOTOFF12 - -- : BFD_RELOC_FRV_FUNCDESC_GOTOFFHI - -- : BFD_RELOC_FRV_FUNCDESC_GOTOFFLO - -- : BFD_RELOC_FRV_GOTOFF12 - -- : BFD_RELOC_FRV_GOTOFFHI - -- : BFD_RELOC_FRV_GOTOFFLO - -- : BFD_RELOC_FRV_GETTLSOFF - -- : BFD_RELOC_FRV_TLSDESC_VALUE - -- : BFD_RELOC_FRV_GOTTLSDESC12 - -- : BFD_RELOC_FRV_GOTTLSDESCHI - -- : BFD_RELOC_FRV_GOTTLSDESCLO - -- : BFD_RELOC_FRV_TLSMOFF12 - -- : BFD_RELOC_FRV_TLSMOFFHI - -- : BFD_RELOC_FRV_TLSMOFFLO - -- : BFD_RELOC_FRV_GOTTLSOFF12 - -- : BFD_RELOC_FRV_GOTTLSOFFHI - -- : BFD_RELOC_FRV_GOTTLSOFFLO - -- : BFD_RELOC_FRV_TLSOFF - -- : BFD_RELOC_FRV_TLSDESC_RELAX - -- : BFD_RELOC_FRV_GETTLSOFF_RELAX - -- : BFD_RELOC_FRV_TLSOFF_RELAX - -- : BFD_RELOC_FRV_TLSMOFF - Fujitsu Frv Relocations. - - -- : BFD_RELOC_MN10300_GOTOFF24 - This is a 24bit GOT-relative reloc for the mn10300. - - -- : BFD_RELOC_MN10300_GOT32 - This is a 32bit GOT-relative reloc for the mn10300, offset by two - bytes in the instruction. - - -- : BFD_RELOC_MN10300_GOT24 - This is a 24bit GOT-relative reloc for the mn10300, offset by two - bytes in the instruction. - - -- : BFD_RELOC_MN10300_GOT16 - This is a 16bit GOT-relative reloc for the mn10300, offset by two - bytes in the instruction. - - -- : BFD_RELOC_MN10300_COPY - Copy symbol at runtime. - - -- : BFD_RELOC_MN10300_GLOB_DAT - Create GOT entry. - - -- : BFD_RELOC_MN10300_JMP_SLOT - Create PLT entry. - - -- : BFD_RELOC_MN10300_RELATIVE - Adjust by program base. - - -- : BFD_RELOC_386_GOT32 - -- : BFD_RELOC_386_PLT32 - -- : BFD_RELOC_386_COPY - -- : BFD_RELOC_386_GLOB_DAT - -- : BFD_RELOC_386_JUMP_SLOT - -- : BFD_RELOC_386_RELATIVE - -- : BFD_RELOC_386_GOTOFF - -- : BFD_RELOC_386_GOTPC - -- : BFD_RELOC_386_TLS_TPOFF - -- : BFD_RELOC_386_TLS_IE - -- : BFD_RELOC_386_TLS_GOTIE - -- : BFD_RELOC_386_TLS_LE - -- : BFD_RELOC_386_TLS_GD - -- : BFD_RELOC_386_TLS_LDM - -- : BFD_RELOC_386_TLS_LDO_32 - -- : BFD_RELOC_386_TLS_IE_32 - -- : BFD_RELOC_386_TLS_LE_32 - -- : BFD_RELOC_386_TLS_DTPMOD32 - -- : BFD_RELOC_386_TLS_DTPOFF32 - -- : BFD_RELOC_386_TLS_TPOFF32 - i386/elf relocations - - -- : BFD_RELOC_X86_64_GOT32 - -- : BFD_RELOC_X86_64_PLT32 - -- : BFD_RELOC_X86_64_COPY - -- : BFD_RELOC_X86_64_GLOB_DAT - -- : BFD_RELOC_X86_64_JUMP_SLOT - -- : BFD_RELOC_X86_64_RELATIVE - -- : BFD_RELOC_X86_64_GOTPCREL - -- : BFD_RELOC_X86_64_32S - -- : BFD_RELOC_X86_64_DTPMOD64 - -- : BFD_RELOC_X86_64_DTPOFF64 - -- : BFD_RELOC_X86_64_TPOFF64 - -- : BFD_RELOC_X86_64_TLSGD - -- : BFD_RELOC_X86_64_TLSLD - -- : BFD_RELOC_X86_64_DTPOFF32 - -- : BFD_RELOC_X86_64_GOTTPOFF - -- : BFD_RELOC_X86_64_TPOFF32 - x86-64/elf relocations - - -- : BFD_RELOC_NS32K_IMM_8 - -- : BFD_RELOC_NS32K_IMM_16 - -- : BFD_RELOC_NS32K_IMM_32 - -- : BFD_RELOC_NS32K_IMM_8_PCREL - -- : BFD_RELOC_NS32K_IMM_16_PCREL - -- : BFD_RELOC_NS32K_IMM_32_PCREL - -- : BFD_RELOC_NS32K_DISP_8 - -- : BFD_RELOC_NS32K_DISP_16 - -- : BFD_RELOC_NS32K_DISP_32 - -- : BFD_RELOC_NS32K_DISP_8_PCREL - -- : BFD_RELOC_NS32K_DISP_16_PCREL - -- : BFD_RELOC_NS32K_DISP_32_PCREL - ns32k relocations - - -- : BFD_RELOC_PDP11_DISP_8_PCREL - -- : BFD_RELOC_PDP11_DISP_6_PCREL - PDP11 relocations - - -- : BFD_RELOC_PJ_CODE_HI16 - -- : BFD_RELOC_PJ_CODE_LO16 - -- : BFD_RELOC_PJ_CODE_DIR16 - -- : BFD_RELOC_PJ_CODE_DIR32 - -- : BFD_RELOC_PJ_CODE_REL16 - -- : BFD_RELOC_PJ_CODE_REL32 - Picojava relocs. Not all of these appear in object files. - - -- : BFD_RELOC_PPC_B26 - -- : BFD_RELOC_PPC_BA26 - -- : BFD_RELOC_PPC_TOC16 - -- : BFD_RELOC_PPC_B16 - -- : BFD_RELOC_PPC_B16_BRTAKEN - -- : BFD_RELOC_PPC_B16_BRNTAKEN - -- : BFD_RELOC_PPC_BA16 - -- : BFD_RELOC_PPC_BA16_BRTAKEN - -- : BFD_RELOC_PPC_BA16_BRNTAKEN - -- : BFD_RELOC_PPC_COPY - -- : BFD_RELOC_PPC_GLOB_DAT - -- : BFD_RELOC_PPC_JMP_SLOT - -- : BFD_RELOC_PPC_RELATIVE - -- : BFD_RELOC_PPC_LOCAL24PC - -- : BFD_RELOC_PPC_EMB_NADDR32 - -- : BFD_RELOC_PPC_EMB_NADDR16 - -- : BFD_RELOC_PPC_EMB_NADDR16_LO - -- : BFD_RELOC_PPC_EMB_NADDR16_HI - -- : BFD_RELOC_PPC_EMB_NADDR16_HA - -- : BFD_RELOC_PPC_EMB_SDAI16 - -- : BFD_RELOC_PPC_EMB_SDA2I16 - -- : BFD_RELOC_PPC_EMB_SDA2REL - -- : BFD_RELOC_PPC_EMB_SDA21 - -- : BFD_RELOC_PPC_EMB_MRKREF - -- : BFD_RELOC_PPC_EMB_RELSEC16 - -- : BFD_RELOC_PPC_EMB_RELST_LO - -- : BFD_RELOC_PPC_EMB_RELST_HI - -- : BFD_RELOC_PPC_EMB_RELST_HA - -- : BFD_RELOC_PPC_EMB_BIT_FLD - -- : BFD_RELOC_PPC_EMB_RELSDA - -- : BFD_RELOC_PPC64_HIGHER - -- : BFD_RELOC_PPC64_HIGHER_S - -- : BFD_RELOC_PPC64_HIGHEST - -- : BFD_RELOC_PPC64_HIGHEST_S - -- : BFD_RELOC_PPC64_TOC16_LO - -- : BFD_RELOC_PPC64_TOC16_HI - -- : BFD_RELOC_PPC64_TOC16_HA - -- : BFD_RELOC_PPC64_TOC - -- : BFD_RELOC_PPC64_PLTGOT16 - -- : BFD_RELOC_PPC64_PLTGOT16_LO - -- : BFD_RELOC_PPC64_PLTGOT16_HI - -- : BFD_RELOC_PPC64_PLTGOT16_HA - -- : BFD_RELOC_PPC64_ADDR16_DS - -- : BFD_RELOC_PPC64_ADDR16_LO_DS - -- : BFD_RELOC_PPC64_GOT16_DS - -- : BFD_RELOC_PPC64_GOT16_LO_DS - -- : BFD_RELOC_PPC64_PLT16_LO_DS - -- : BFD_RELOC_PPC64_SECTOFF_DS - -- : BFD_RELOC_PPC64_SECTOFF_LO_DS - -- : BFD_RELOC_PPC64_TOC16_DS - -- : BFD_RELOC_PPC64_TOC16_LO_DS - -- : BFD_RELOC_PPC64_PLTGOT16_DS - -- : BFD_RELOC_PPC64_PLTGOT16_LO_DS - Power(rs6000) and PowerPC relocations. - - -- : BFD_RELOC_PPC_TLS - -- : BFD_RELOC_PPC_DTPMOD - -- : BFD_RELOC_PPC_TPREL16 - -- : BFD_RELOC_PPC_TPREL16_LO - -- : BFD_RELOC_PPC_TPREL16_HI - -- : BFD_RELOC_PPC_TPREL16_HA - -- : BFD_RELOC_PPC_TPREL - -- : BFD_RELOC_PPC_DTPREL16 - -- : BFD_RELOC_PPC_DTPREL16_LO - -- : BFD_RELOC_PPC_DTPREL16_HI - -- : BFD_RELOC_PPC_DTPREL16_HA - -- : BFD_RELOC_PPC_DTPREL - -- : BFD_RELOC_PPC_GOT_TLSGD16 - -- : BFD_RELOC_PPC_GOT_TLSGD16_LO - -- : BFD_RELOC_PPC_GOT_TLSGD16_HI - -- : BFD_RELOC_PPC_GOT_TLSGD16_HA - -- : BFD_RELOC_PPC_GOT_TLSLD16 - -- : BFD_RELOC_PPC_GOT_TLSLD16_LO - -- : BFD_RELOC_PPC_GOT_TLSLD16_HI - -- : BFD_RELOC_PPC_GOT_TLSLD16_HA - -- : BFD_RELOC_PPC_GOT_TPREL16 - -- : BFD_RELOC_PPC_GOT_TPREL16_LO - -- : BFD_RELOC_PPC_GOT_TPREL16_HI - -- : BFD_RELOC_PPC_GOT_TPREL16_HA - -- : BFD_RELOC_PPC_GOT_DTPREL16 - -- : BFD_RELOC_PPC_GOT_DTPREL16_LO - -- : BFD_RELOC_PPC_GOT_DTPREL16_HI - -- : BFD_RELOC_PPC_GOT_DTPREL16_HA - -- : BFD_RELOC_PPC64_TPREL16_DS - -- : BFD_RELOC_PPC64_TPREL16_LO_DS - -- : BFD_RELOC_PPC64_TPREL16_HIGHER - -- : BFD_RELOC_PPC64_TPREL16_HIGHERA - -- : BFD_RELOC_PPC64_TPREL16_HIGHEST - -- : BFD_RELOC_PPC64_TPREL16_HIGHESTA - -- : BFD_RELOC_PPC64_DTPREL16_DS - -- : BFD_RELOC_PPC64_DTPREL16_LO_DS - -- : BFD_RELOC_PPC64_DTPREL16_HIGHER - -- : BFD_RELOC_PPC64_DTPREL16_HIGHERA - -- : BFD_RELOC_PPC64_DTPREL16_HIGHEST - -- : BFD_RELOC_PPC64_DTPREL16_HIGHESTA - PowerPC and PowerPC64 thread-local storage relocations. - - -- : BFD_RELOC_I370_D12 - IBM 370/390 relocations - - -- : BFD_RELOC_CTOR - The type of reloc used to build a constructor table - at the moment - probably a 32 bit wide absolute relocation, but the target can - choose. It generally does map to one of the other relocation - types. - - -- : BFD_RELOC_ARM_PCREL_BRANCH - ARM 26 bit pc-relative branch. The lowest two bits must be zero - and are not stored in the instruction. - - -- : BFD_RELOC_ARM_PCREL_BLX - ARM 26 bit pc-relative branch. The lowest bit must be zero and is - not stored in the instruction. The 2nd lowest bit comes from a 1 - bit field in the instruction. - - -- : BFD_RELOC_THUMB_PCREL_BLX - Thumb 22 bit pc-relative branch. The lowest bit must be zero and - is not stored in the instruction. The 2nd lowest bit comes from a - 1 bit field in the instruction. - - -- : BFD_RELOC_ARM_IMMEDIATE - -- : BFD_RELOC_ARM_ADRL_IMMEDIATE - -- : BFD_RELOC_ARM_OFFSET_IMM - -- : BFD_RELOC_ARM_SHIFT_IMM - -- : BFD_RELOC_ARM_SMI - -- : BFD_RELOC_ARM_SWI - -- : BFD_RELOC_ARM_MULTI - -- : BFD_RELOC_ARM_CP_OFF_IMM - -- : BFD_RELOC_ARM_CP_OFF_IMM_S2 - -- : BFD_RELOC_ARM_ADR_IMM - -- : BFD_RELOC_ARM_LDR_IMM - -- : BFD_RELOC_ARM_LITERAL - -- : BFD_RELOC_ARM_IN_POOL - -- : BFD_RELOC_ARM_OFFSET_IMM8 - -- : BFD_RELOC_ARM_HWLITERAL - -- : BFD_RELOC_ARM_THUMB_ADD - -- : BFD_RELOC_ARM_THUMB_IMM - -- : BFD_RELOC_ARM_THUMB_SHIFT - -- : BFD_RELOC_ARM_THUMB_OFFSET - -- : BFD_RELOC_ARM_GOT12 - -- : BFD_RELOC_ARM_GOT32 - -- : BFD_RELOC_ARM_JUMP_SLOT - -- : BFD_RELOC_ARM_COPY - -- : BFD_RELOC_ARM_GLOB_DAT - -- : BFD_RELOC_ARM_PLT32 - -- : BFD_RELOC_ARM_RELATIVE - -- : BFD_RELOC_ARM_GOTOFF - -- : BFD_RELOC_ARM_GOTPC - These relocs are only used within the ARM assembler. They are not - (at present) written to any object files. - - -- : BFD_RELOC_ARM_TARGET1 - Pc-relative or absolute relocation depending on target. Used for - entries in .init_array sections. - - -- : BFD_RELOC_ARM_ROSEGREL32 - Read-only segment base relative address. - - -- : BFD_RELOC_ARM_SBREL32 - Data segment base relative address. - - -- : BFD_RELOC_ARM_TARGET2 - This reloc is used for References to RTTI dta from exception - handling tables. The actual definition depends on the target. It - may be a pc-relative or some form of GOT-indirect relocation. - - -- : BFD_RELOC_ARM_PREL31 - 31-bit PC relative address. - - -- : BFD_RELOC_SH_PCDISP8BY2 - -- : BFD_RELOC_SH_PCDISP12BY2 - -- : BFD_RELOC_SH_IMM3 - -- : BFD_RELOC_SH_IMM3U - -- : BFD_RELOC_SH_DISP12 - -- : BFD_RELOC_SH_DISP12BY2 - -- : BFD_RELOC_SH_DISP12BY4 - -- : BFD_RELOC_SH_DISP12BY8 - -- : BFD_RELOC_SH_DISP20 - -- : BFD_RELOC_SH_DISP20BY8 - -- : BFD_RELOC_SH_IMM4 - -- : BFD_RELOC_SH_IMM4BY2 - -- : BFD_RELOC_SH_IMM4BY4 - -- : BFD_RELOC_SH_IMM8 - -- : BFD_RELOC_SH_IMM8BY2 - -- : BFD_RELOC_SH_IMM8BY4 - -- : BFD_RELOC_SH_PCRELIMM8BY2 - -- : BFD_RELOC_SH_PCRELIMM8BY4 - -- : BFD_RELOC_SH_SWITCH16 - -- : BFD_RELOC_SH_SWITCH32 - -- : BFD_RELOC_SH_USES - -- : BFD_RELOC_SH_COUNT - -- : BFD_RELOC_SH_ALIGN - -- : BFD_RELOC_SH_CODE - -- : BFD_RELOC_SH_DATA - -- : BFD_RELOC_SH_LABEL - -- : BFD_RELOC_SH_LOOP_START - -- : BFD_RELOC_SH_LOOP_END - -- : BFD_RELOC_SH_COPY - -- : BFD_RELOC_SH_GLOB_DAT - -- : BFD_RELOC_SH_JMP_SLOT - -- : BFD_RELOC_SH_RELATIVE - -- : BFD_RELOC_SH_GOTPC - -- : BFD_RELOC_SH_GOT_LOW16 - -- : BFD_RELOC_SH_GOT_MEDLOW16 - -- : BFD_RELOC_SH_GOT_MEDHI16 - -- : BFD_RELOC_SH_GOT_HI16 - -- : BFD_RELOC_SH_GOTPLT_LOW16 - -- : BFD_RELOC_SH_GOTPLT_MEDLOW16 - -- : BFD_RELOC_SH_GOTPLT_MEDHI16 - -- : BFD_RELOC_SH_GOTPLT_HI16 - -- : BFD_RELOC_SH_PLT_LOW16 - -- : BFD_RELOC_SH_PLT_MEDLOW16 - -- : BFD_RELOC_SH_PLT_MEDHI16 - -- : BFD_RELOC_SH_PLT_HI16 - -- : BFD_RELOC_SH_GOTOFF_LOW16 - -- : BFD_RELOC_SH_GOTOFF_MEDLOW16 - -- : BFD_RELOC_SH_GOTOFF_MEDHI16 - -- : BFD_RELOC_SH_GOTOFF_HI16 - -- : BFD_RELOC_SH_GOTPC_LOW16 - -- : BFD_RELOC_SH_GOTPC_MEDLOW16 - -- : BFD_RELOC_SH_GOTPC_MEDHI16 - -- : BFD_RELOC_SH_GOTPC_HI16 - -- : BFD_RELOC_SH_COPY64 - -- : BFD_RELOC_SH_GLOB_DAT64 - -- : BFD_RELOC_SH_JMP_SLOT64 - -- : BFD_RELOC_SH_RELATIVE64 - -- : BFD_RELOC_SH_GOT10BY4 - -- : BFD_RELOC_SH_GOT10BY8 - -- : BFD_RELOC_SH_GOTPLT10BY4 - -- : BFD_RELOC_SH_GOTPLT10BY8 - -- : BFD_RELOC_SH_GOTPLT32 - -- : BFD_RELOC_SH_SHMEDIA_CODE - -- : BFD_RELOC_SH_IMMU5 - -- : BFD_RELOC_SH_IMMS6 - -- : BFD_RELOC_SH_IMMS6BY32 - -- : BFD_RELOC_SH_IMMU6 - -- : BFD_RELOC_SH_IMMS10 - -- : BFD_RELOC_SH_IMMS10BY2 - -- : BFD_RELOC_SH_IMMS10BY4 - -- : BFD_RELOC_SH_IMMS10BY8 - -- : BFD_RELOC_SH_IMMS16 - -- : BFD_RELOC_SH_IMMU16 - -- : BFD_RELOC_SH_IMM_LOW16 - -- : BFD_RELOC_SH_IMM_LOW16_PCREL - -- : BFD_RELOC_SH_IMM_MEDLOW16 - -- : BFD_RELOC_SH_IMM_MEDLOW16_PCREL - -- : BFD_RELOC_SH_IMM_MEDHI16 - -- : BFD_RELOC_SH_IMM_MEDHI16_PCREL - -- : BFD_RELOC_SH_IMM_HI16 - -- : BFD_RELOC_SH_IMM_HI16_PCREL - -- : BFD_RELOC_SH_PT_16 - -- : BFD_RELOC_SH_TLS_GD_32 - -- : BFD_RELOC_SH_TLS_LD_32 - -- : BFD_RELOC_SH_TLS_LDO_32 - -- : BFD_RELOC_SH_TLS_IE_32 - -- : BFD_RELOC_SH_TLS_LE_32 - -- : BFD_RELOC_SH_TLS_DTPMOD32 - -- : BFD_RELOC_SH_TLS_DTPOFF32 - -- : BFD_RELOC_SH_TLS_TPOFF32 - Renesas / SuperH SH relocs. Not all of these appear in object - files. - - -- : BFD_RELOC_THUMB_PCREL_BRANCH9 - -- : BFD_RELOC_THUMB_PCREL_BRANCH12 - -- : BFD_RELOC_THUMB_PCREL_BRANCH23 - Thumb 23-, 12- and 9-bit pc-relative branches. The lowest bit must - be zero and is not stored in the instruction. - - -- : BFD_RELOC_ARC_B22_PCREL - ARC Cores relocs. ARC 22 bit pc-relative branch. The lowest two - bits must be zero and are not stored in the instruction. The high - 20 bits are installed in bits 26 through 7 of the instruction. - - -- : BFD_RELOC_ARC_B26 - ARC 26 bit absolute branch. The lowest two bits must be zero and - are not stored in the instruction. The high 24 bits are installed - in bits 23 through 0. - - -- : BFD_RELOC_D10V_10_PCREL_R - Mitsubishi D10V relocs. This is a 10-bit reloc with the right 2 - bits assumed to be 0. - - -- : BFD_RELOC_D10V_10_PCREL_L - Mitsubishi D10V relocs. This is a 10-bit reloc with the right 2 - bits assumed to be 0. This is the same as the previous reloc - except it is in the left container, i.e., shifted left 15 bits. - - -- : BFD_RELOC_D10V_18 - This is an 18-bit reloc with the right 2 bits assumed to be 0. - - -- : BFD_RELOC_D10V_18_PCREL - This is an 18-bit reloc with the right 2 bits assumed to be 0. - - -- : BFD_RELOC_D30V_6 - Mitsubishi D30V relocs. This is a 6-bit absolute reloc. - - -- : BFD_RELOC_D30V_9_PCREL - This is a 6-bit pc-relative reloc with the right 3 bits assumed to - be 0. - - -- : BFD_RELOC_D30V_9_PCREL_R - This is a 6-bit pc-relative reloc with the right 3 bits assumed to - be 0. Same as the previous reloc but on the right side of the - container. - - -- : BFD_RELOC_D30V_15 - This is a 12-bit absolute reloc with the right 3 bitsassumed to be - 0. - - -- : BFD_RELOC_D30V_15_PCREL - This is a 12-bit pc-relative reloc with the right 3 bits assumed - to be 0. - - -- : BFD_RELOC_D30V_15_PCREL_R - This is a 12-bit pc-relative reloc with the right 3 bits assumed - to be 0. Same as the previous reloc but on the right side of the - container. - - -- : BFD_RELOC_D30V_21 - This is an 18-bit absolute reloc with the right 3 bits assumed to - be 0. - - -- : BFD_RELOC_D30V_21_PCREL - This is an 18-bit pc-relative reloc with the right 3 bits assumed - to be 0. - - -- : BFD_RELOC_D30V_21_PCREL_R - This is an 18-bit pc-relative reloc with the right 3 bits assumed - to be 0. Same as the previous reloc but on the right side of the - container. - - -- : BFD_RELOC_D30V_32 - This is a 32-bit absolute reloc. - - -- : BFD_RELOC_D30V_32_PCREL - This is a 32-bit pc-relative reloc. - - -- : BFD_RELOC_DLX_HI16_S - DLX relocs - - -- : BFD_RELOC_DLX_LO16 - DLX relocs - - -- : BFD_RELOC_DLX_JMP26 - DLX relocs - - -- : BFD_RELOC_M32R_24 - Renesas M32R (formerly Mitsubishi M32R) relocs. This is a 24 bit - absolute address. - - -- : BFD_RELOC_M32R_10_PCREL - This is a 10-bit pc-relative reloc with the right 2 bits assumed - to be 0. - - -- : BFD_RELOC_M32R_18_PCREL - This is an 18-bit reloc with the right 2 bits assumed to be 0. - - -- : BFD_RELOC_M32R_26_PCREL - This is a 26-bit reloc with the right 2 bits assumed to be 0. - - -- : BFD_RELOC_M32R_HI16_ULO - This is a 16-bit reloc containing the high 16 bits of an address - used when the lower 16 bits are treated as unsigned. - - -- : BFD_RELOC_M32R_HI16_SLO - This is a 16-bit reloc containing the high 16 bits of an address - used when the lower 16 bits are treated as signed. - - -- : BFD_RELOC_M32R_LO16 - This is a 16-bit reloc containing the lower 16 bits of an address. - - -- : BFD_RELOC_M32R_SDA16 - This is a 16-bit reloc containing the small data area offset for - use in add3, load, and store instructions. - - -- : BFD_RELOC_M32R_GOT24 - -- : BFD_RELOC_M32R_26_PLTREL - -- : BFD_RELOC_M32R_COPY - -- : BFD_RELOC_M32R_GLOB_DAT - -- : BFD_RELOC_M32R_JMP_SLOT - -- : BFD_RELOC_M32R_RELATIVE - -- : BFD_RELOC_M32R_GOTOFF - -- : BFD_RELOC_M32R_GOTOFF_HI_ULO - -- : BFD_RELOC_M32R_GOTOFF_HI_SLO - -- : BFD_RELOC_M32R_GOTOFF_LO - -- : BFD_RELOC_M32R_GOTPC24 - -- : BFD_RELOC_M32R_GOT16_HI_ULO - -- : BFD_RELOC_M32R_GOT16_HI_SLO - -- : BFD_RELOC_M32R_GOT16_LO - -- : BFD_RELOC_M32R_GOTPC_HI_ULO - -- : BFD_RELOC_M32R_GOTPC_HI_SLO - -- : BFD_RELOC_M32R_GOTPC_LO - For PIC. - - -- : BFD_RELOC_V850_9_PCREL - This is a 9-bit reloc - - -- : BFD_RELOC_V850_22_PCREL - This is a 22-bit reloc - - -- : BFD_RELOC_V850_SDA_16_16_OFFSET - This is a 16 bit offset from the short data area pointer. - - -- : BFD_RELOC_V850_SDA_15_16_OFFSET - This is a 16 bit offset (of which only 15 bits are used) from the - short data area pointer. - - -- : BFD_RELOC_V850_ZDA_16_16_OFFSET - This is a 16 bit offset from the zero data area pointer. - - -- : BFD_RELOC_V850_ZDA_15_16_OFFSET - This is a 16 bit offset (of which only 15 bits are used) from the - zero data area pointer. - - -- : BFD_RELOC_V850_TDA_6_8_OFFSET - This is an 8 bit offset (of which only 6 bits are used) from the - tiny data area pointer. - - -- : BFD_RELOC_V850_TDA_7_8_OFFSET - This is an 8bit offset (of which only 7 bits are used) from the - tiny data area pointer. - - -- : BFD_RELOC_V850_TDA_7_7_OFFSET - This is a 7 bit offset from the tiny data area pointer. - - -- : BFD_RELOC_V850_TDA_16_16_OFFSET - This is a 16 bit offset from the tiny data area pointer. - - -- : BFD_RELOC_V850_TDA_4_5_OFFSET - This is a 5 bit offset (of which only 4 bits are used) from the - tiny data area pointer. - - -- : BFD_RELOC_V850_TDA_4_4_OFFSET - This is a 4 bit offset from the tiny data area pointer. - - -- : BFD_RELOC_V850_SDA_16_16_SPLIT_OFFSET - This is a 16 bit offset from the short data area pointer, with the - bits placed non-contiguously in the instruction. - - -- : BFD_RELOC_V850_ZDA_16_16_SPLIT_OFFSET - This is a 16 bit offset from the zero data area pointer, with the - bits placed non-contiguously in the instruction. - - -- : BFD_RELOC_V850_CALLT_6_7_OFFSET - This is a 6 bit offset from the call table base pointer. - - -- : BFD_RELOC_V850_CALLT_16_16_OFFSET - This is a 16 bit offset from the call table base pointer. - - -- : BFD_RELOC_V850_LONGCALL - Used for relaxing indirect function calls. - - -- : BFD_RELOC_V850_LONGJUMP - Used for relaxing indirect jumps. - - -- : BFD_RELOC_V850_ALIGN - Used to maintain alignment whilst relaxing. - - -- : BFD_RELOC_V850_LO16_SPLIT_OFFSET - This is a variation of BFD_RELOC_LO16 that can be used in v850e - ld.bu instructions. - - -- : BFD_RELOC_MN10300_32_PCREL - This is a 32bit pcrel reloc for the mn10300, offset by two bytes - in the instruction. - - -- : BFD_RELOC_MN10300_16_PCREL - This is a 16bit pcrel reloc for the mn10300, offset by two bytes - in the instruction. - - -- : BFD_RELOC_TIC30_LDP - This is a 8bit DP reloc for the tms320c30, where the most - significant 8 bits of a 24 bit word are placed into the least - significant 8 bits of the opcode. - - -- : BFD_RELOC_TIC54X_PARTLS7 - This is a 7bit reloc for the tms320c54x, where the least - significant 7 bits of a 16 bit word are placed into the least - significant 7 bits of the opcode. - - -- : BFD_RELOC_TIC54X_PARTMS9 - This is a 9bit DP reloc for the tms320c54x, where the most - significant 9 bits of a 16 bit word are placed into the least - significant 9 bits of the opcode. - - -- : BFD_RELOC_TIC54X_23 - This is an extended address 23-bit reloc for the tms320c54x. - - -- : BFD_RELOC_TIC54X_16_OF_23 - This is a 16-bit reloc for the tms320c54x, where the least - significant 16 bits of a 23-bit extended address are placed into - the opcode. - - -- : BFD_RELOC_TIC54X_MS7_OF_23 - This is a reloc for the tms320c54x, where the most significant 7 - bits of a 23-bit extended address are placed into the opcode. - - -- : BFD_RELOC_FR30_48 - This is a 48 bit reloc for the FR30 that stores 32 bits. - - -- : BFD_RELOC_FR30_20 - This is a 32 bit reloc for the FR30 that stores 20 bits split up - into two sections. - - -- : BFD_RELOC_FR30_6_IN_4 - This is a 16 bit reloc for the FR30 that stores a 6 bit word - offset in 4 bits. - - -- : BFD_RELOC_FR30_8_IN_8 - This is a 16 bit reloc for the FR30 that stores an 8 bit byte - offset into 8 bits. - - -- : BFD_RELOC_FR30_9_IN_8 - This is a 16 bit reloc for the FR30 that stores a 9 bit short - offset into 8 bits. - - -- : BFD_RELOC_FR30_10_IN_8 - This is a 16 bit reloc for the FR30 that stores a 10 bit word - offset into 8 bits. - - -- : BFD_RELOC_FR30_9_PCREL - This is a 16 bit reloc for the FR30 that stores a 9 bit pc relative - short offset into 8 bits. - - -- : BFD_RELOC_FR30_12_PCREL - This is a 16 bit reloc for the FR30 that stores a 12 bit pc - relative short offset into 11 bits. - - -- : BFD_RELOC_MCORE_PCREL_IMM8BY4 - -- : BFD_RELOC_MCORE_PCREL_IMM11BY2 - -- : BFD_RELOC_MCORE_PCREL_IMM4BY2 - -- : BFD_RELOC_MCORE_PCREL_32 - -- : BFD_RELOC_MCORE_PCREL_JSR_IMM11BY2 - -- : BFD_RELOC_MCORE_RVA - Motorola Mcore relocations. - - -- : BFD_RELOC_MMIX_GETA - -- : BFD_RELOC_MMIX_GETA_1 - -- : BFD_RELOC_MMIX_GETA_2 - -- : BFD_RELOC_MMIX_GETA_3 - These are relocations for the GETA instruction. - - -- : BFD_RELOC_MMIX_CBRANCH - -- : BFD_RELOC_MMIX_CBRANCH_J - -- : BFD_RELOC_MMIX_CBRANCH_1 - -- : BFD_RELOC_MMIX_CBRANCH_2 - -- : BFD_RELOC_MMIX_CBRANCH_3 - These are relocations for a conditional branch instruction. - - -- : BFD_RELOC_MMIX_PUSHJ - -- : BFD_RELOC_MMIX_PUSHJ_1 - -- : BFD_RELOC_MMIX_PUSHJ_2 - -- : BFD_RELOC_MMIX_PUSHJ_3 - -- : BFD_RELOC_MMIX_PUSHJ_STUBBABLE - These are relocations for the PUSHJ instruction. - - -- : BFD_RELOC_MMIX_JMP - -- : BFD_RELOC_MMIX_JMP_1 - -- : BFD_RELOC_MMIX_JMP_2 - -- : BFD_RELOC_MMIX_JMP_3 - These are relocations for the JMP instruction. - - -- : BFD_RELOC_MMIX_ADDR19 - This is a relocation for a relative address as in a GETA - instruction or a branch. - - -- : BFD_RELOC_MMIX_ADDR27 - This is a relocation for a relative address as in a JMP - instruction. - - -- : BFD_RELOC_MMIX_REG_OR_BYTE - This is a relocation for an instruction field that may be a general - register or a value 0..255. - - -- : BFD_RELOC_MMIX_REG - This is a relocation for an instruction field that may be a general - register. - - -- : BFD_RELOC_MMIX_BASE_PLUS_OFFSET - This is a relocation for two instruction fields holding a register - and an offset, the equivalent of the relocation. - - -- : BFD_RELOC_MMIX_LOCAL - This relocation is an assertion that the expression is not - allocated as a global register. It does not modify contents. - - -- : BFD_RELOC_AVR_7_PCREL - This is a 16 bit reloc for the AVR that stores 8 bit pc relative - short offset into 7 bits. - - -- : BFD_RELOC_AVR_13_PCREL - This is a 16 bit reloc for the AVR that stores 13 bit pc relative - short offset into 12 bits. - - -- : BFD_RELOC_AVR_16_PM - This is a 16 bit reloc for the AVR that stores 17 bit value - (usually program memory address) into 16 bits. - - -- : BFD_RELOC_AVR_LO8_LDI - This is a 16 bit reloc for the AVR that stores 8 bit value (usually - data memory address) into 8 bit immediate value of LDI insn. - - -- : BFD_RELOC_AVR_HI8_LDI - This is a 16 bit reloc for the AVR that stores 8 bit value (high 8 - bit of data memory address) into 8 bit immediate value of LDI insn. - - -- : BFD_RELOC_AVR_HH8_LDI - This is a 16 bit reloc for the AVR that stores 8 bit value (most - high 8 bit of program memory address) into 8 bit immediate value - of LDI insn. - - -- : BFD_RELOC_AVR_LO8_LDI_NEG - This is a 16 bit reloc for the AVR that stores negated 8 bit value - (usually data memory address) into 8 bit immediate value of SUBI - insn. - - -- : BFD_RELOC_AVR_HI8_LDI_NEG - This is a 16 bit reloc for the AVR that stores negated 8 bit value - (high 8 bit of data memory address) into 8 bit immediate value of - SUBI insn. - - -- : BFD_RELOC_AVR_HH8_LDI_NEG - This is a 16 bit reloc for the AVR that stores negated 8 bit value - (most high 8 bit of program memory address) into 8 bit immediate - value of LDI or SUBI insn. - - -- : BFD_RELOC_AVR_LO8_LDI_PM - This is a 16 bit reloc for the AVR that stores 8 bit value (usually - command address) into 8 bit immediate value of LDI insn. - - -- : BFD_RELOC_AVR_HI8_LDI_PM - This is a 16 bit reloc for the AVR that stores 8 bit value (high 8 - bit of command address) into 8 bit immediate value of LDI insn. - - -- : BFD_RELOC_AVR_HH8_LDI_PM - This is a 16 bit reloc for the AVR that stores 8 bit value (most - high 8 bit of command address) into 8 bit immediate value of LDI - insn. - - -- : BFD_RELOC_AVR_LO8_LDI_PM_NEG - This is a 16 bit reloc for the AVR that stores negated 8 bit value - (usually command address) into 8 bit immediate value of SUBI insn. - - -- : BFD_RELOC_AVR_HI8_LDI_PM_NEG - This is a 16 bit reloc for the AVR that stores negated 8 bit value - (high 8 bit of 16 bit command address) into 8 bit immediate value - of SUBI insn. - - -- : BFD_RELOC_AVR_HH8_LDI_PM_NEG - This is a 16 bit reloc for the AVR that stores negated 8 bit value - (high 6 bit of 22 bit command address) into 8 bit immediate value - of SUBI insn. - - -- : BFD_RELOC_AVR_CALL - This is a 32 bit reloc for the AVR that stores 23 bit value into - 22 bits. - - -- : BFD_RELOC_AVR_LDI - This is a 16 bit reloc for the AVR that stores all needed bits for - absolute addressing with ldi with overflow check to linktime - - -- : BFD_RELOC_AVR_6 - This is a 6 bit reloc for the AVR that stores offset for ldd/std - instructions - - -- : BFD_RELOC_AVR_6_ADIW - This is a 6 bit reloc for the AVR that stores offset for adiw/sbiw - instructions - - -- : BFD_RELOC_390_12 - Direct 12 bit. - - -- : BFD_RELOC_390_GOT12 - 12 bit GOT offset. - - -- : BFD_RELOC_390_PLT32 - 32 bit PC relative PLT address. - - -- : BFD_RELOC_390_COPY - Copy symbol at runtime. - - -- : BFD_RELOC_390_GLOB_DAT - Create GOT entry. - - -- : BFD_RELOC_390_JMP_SLOT - Create PLT entry. - - -- : BFD_RELOC_390_RELATIVE - Adjust by program base. - - -- : BFD_RELOC_390_GOTPC - 32 bit PC relative offset to GOT. - - -- : BFD_RELOC_390_GOT16 - 16 bit GOT offset. - - -- : BFD_RELOC_390_PC16DBL - PC relative 16 bit shifted by 1. - - -- : BFD_RELOC_390_PLT16DBL - 16 bit PC rel. PLT shifted by 1. - - -- : BFD_RELOC_390_PC32DBL - PC relative 32 bit shifted by 1. - - -- : BFD_RELOC_390_PLT32DBL - 32 bit PC rel. PLT shifted by 1. - - -- : BFD_RELOC_390_GOTPCDBL - 32 bit PC rel. GOT shifted by 1. - - -- : BFD_RELOC_390_GOT64 - 64 bit GOT offset. - - -- : BFD_RELOC_390_PLT64 - 64 bit PC relative PLT address. - - -- : BFD_RELOC_390_GOTENT - 32 bit rel. offset to GOT entry. - - -- : BFD_RELOC_390_GOTOFF64 - 64 bit offset to GOT. - - -- : BFD_RELOC_390_GOTPLT12 - 12-bit offset to symbol-entry within GOT, with PLT handling. - - -- : BFD_RELOC_390_GOTPLT16 - 16-bit offset to symbol-entry within GOT, with PLT handling. - - -- : BFD_RELOC_390_GOTPLT32 - 32-bit offset to symbol-entry within GOT, with PLT handling. - - -- : BFD_RELOC_390_GOTPLT64 - 64-bit offset to symbol-entry within GOT, with PLT handling. - - -- : BFD_RELOC_390_GOTPLTENT - 32-bit rel. offset to symbol-entry within GOT, with PLT handling. - - -- : BFD_RELOC_390_PLTOFF16 - 16-bit rel. offset from the GOT to a PLT entry. - - -- : BFD_RELOC_390_PLTOFF32 - 32-bit rel. offset from the GOT to a PLT entry. - - -- : BFD_RELOC_390_PLTOFF64 - 64-bit rel. offset from the GOT to a PLT entry. - - -- : BFD_RELOC_390_TLS_LOAD - -- : BFD_RELOC_390_TLS_GDCALL - -- : BFD_RELOC_390_TLS_LDCALL - -- : BFD_RELOC_390_TLS_GD32 - -- : BFD_RELOC_390_TLS_GD64 - -- : BFD_RELOC_390_TLS_GOTIE12 - -- : BFD_RELOC_390_TLS_GOTIE32 - -- : BFD_RELOC_390_TLS_GOTIE64 - -- : BFD_RELOC_390_TLS_LDM32 - -- : BFD_RELOC_390_TLS_LDM64 - -- : BFD_RELOC_390_TLS_IE32 - -- : BFD_RELOC_390_TLS_IE64 - -- : BFD_RELOC_390_TLS_IEENT - -- : BFD_RELOC_390_TLS_LE32 - -- : BFD_RELOC_390_TLS_LE64 - -- : BFD_RELOC_390_TLS_LDO32 - -- : BFD_RELOC_390_TLS_LDO64 - -- : BFD_RELOC_390_TLS_DTPMOD - -- : BFD_RELOC_390_TLS_DTPOFF - -- : BFD_RELOC_390_TLS_TPOFF - s390 tls relocations. - - -- : BFD_RELOC_390_20 - -- : BFD_RELOC_390_GOT20 - -- : BFD_RELOC_390_GOTPLT20 - -- : BFD_RELOC_390_TLS_GOTIE20 - Long displacement extension. - - -- : BFD_RELOC_IP2K_FR9 - Scenix IP2K - 9-bit register number / data address - - -- : BFD_RELOC_IP2K_BANK - Scenix IP2K - 4-bit register/data bank number - - -- : BFD_RELOC_IP2K_ADDR16CJP - Scenix IP2K - low 13 bits of instruction word address - - -- : BFD_RELOC_IP2K_PAGE3 - Scenix IP2K - high 3 bits of instruction word address - - -- : BFD_RELOC_IP2K_LO8DATA - -- : BFD_RELOC_IP2K_HI8DATA - -- : BFD_RELOC_IP2K_EX8DATA - Scenix IP2K - ext/low/high 8 bits of data address - - -- : BFD_RELOC_IP2K_LO8INSN - -- : BFD_RELOC_IP2K_HI8INSN - Scenix IP2K - low/high 8 bits of instruction word address - - -- : BFD_RELOC_IP2K_PC_SKIP - Scenix IP2K - even/odd PC modifier to modify snb pcl.0 - - -- : BFD_RELOC_IP2K_TEXT - Scenix IP2K - 16 bit word address in text section. - - -- : BFD_RELOC_IP2K_FR_OFFSET - Scenix IP2K - 7-bit sp or dp offset - - -- : BFD_RELOC_VPE4KMATH_DATA - -- : BFD_RELOC_VPE4KMATH_INSN - Scenix VPE4K coprocessor - data/insn-space addressing - - -- : BFD_RELOC_VTABLE_INHERIT - -- : BFD_RELOC_VTABLE_ENTRY - These two relocations are used by the linker to determine which of - the entries in a C++ virtual function table are actually used. - When the -gc-sections option is given, the linker will zero out - the entries that are not used, so that the code for those - functions need not be included in the output. - - VTABLE_INHERIT is a zero-space relocation used to describe to the - linker the inheritance tree of a C++ virtual function table. The - relocation's symbol should be the parent class' vtable, and the - relocation should be located at the child vtable. - - VTABLE_ENTRY is a zero-space relocation that describes the use of a - virtual function table entry. The reloc's symbol should refer to - the table of the class mentioned in the code. Off of that base, - an offset describes the entry that is being used. For Rela hosts, - this offset is stored in the reloc's addend. For Rel hosts, we - are forced to put this offset in the reloc's section offset. - - -- : BFD_RELOC_IA64_IMM14 - -- : BFD_RELOC_IA64_IMM22 - -- : BFD_RELOC_IA64_IMM64 - -- : BFD_RELOC_IA64_DIR32MSB - -- : BFD_RELOC_IA64_DIR32LSB - -- : BFD_RELOC_IA64_DIR64MSB - -- : BFD_RELOC_IA64_DIR64LSB - -- : BFD_RELOC_IA64_GPREL22 - -- : BFD_RELOC_IA64_GPREL64I - -- : BFD_RELOC_IA64_GPREL32MSB - -- : BFD_RELOC_IA64_GPREL32LSB - -- : BFD_RELOC_IA64_GPREL64MSB - -- : BFD_RELOC_IA64_GPREL64LSB - -- : BFD_RELOC_IA64_LTOFF22 - -- : BFD_RELOC_IA64_LTOFF64I - -- : BFD_RELOC_IA64_PLTOFF22 - -- : BFD_RELOC_IA64_PLTOFF64I - -- : BFD_RELOC_IA64_PLTOFF64MSB - -- : BFD_RELOC_IA64_PLTOFF64LSB - -- : BFD_RELOC_IA64_FPTR64I - -- : BFD_RELOC_IA64_FPTR32MSB - -- : BFD_RELOC_IA64_FPTR32LSB - -- : BFD_RELOC_IA64_FPTR64MSB - -- : BFD_RELOC_IA64_FPTR64LSB - -- : BFD_RELOC_IA64_PCREL21B - -- : BFD_RELOC_IA64_PCREL21BI - -- : BFD_RELOC_IA64_PCREL21M - -- : BFD_RELOC_IA64_PCREL21F - -- : BFD_RELOC_IA64_PCREL22 - -- : BFD_RELOC_IA64_PCREL60B - -- : BFD_RELOC_IA64_PCREL64I - -- : BFD_RELOC_IA64_PCREL32MSB - -- : BFD_RELOC_IA64_PCREL32LSB - -- : BFD_RELOC_IA64_PCREL64MSB - -- : BFD_RELOC_IA64_PCREL64LSB - -- : BFD_RELOC_IA64_LTOFF_FPTR22 - -- : BFD_RELOC_IA64_LTOFF_FPTR64I - -- : BFD_RELOC_IA64_LTOFF_FPTR32MSB - -- : BFD_RELOC_IA64_LTOFF_FPTR32LSB - -- : BFD_RELOC_IA64_LTOFF_FPTR64MSB - -- : BFD_RELOC_IA64_LTOFF_FPTR64LSB - -- : BFD_RELOC_IA64_SEGREL32MSB - -- : BFD_RELOC_IA64_SEGREL32LSB - -- : BFD_RELOC_IA64_SEGREL64MSB - -- : BFD_RELOC_IA64_SEGREL64LSB - -- : BFD_RELOC_IA64_SECREL32MSB - -- : BFD_RELOC_IA64_SECREL32LSB - -- : BFD_RELOC_IA64_SECREL64MSB - -- : BFD_RELOC_IA64_SECREL64LSB - -- : BFD_RELOC_IA64_REL32MSB - -- : BFD_RELOC_IA64_REL32LSB - -- : BFD_RELOC_IA64_REL64MSB - -- : BFD_RELOC_IA64_REL64LSB - -- : BFD_RELOC_IA64_LTV32MSB - -- : BFD_RELOC_IA64_LTV32LSB - -- : BFD_RELOC_IA64_LTV64MSB - -- : BFD_RELOC_IA64_LTV64LSB - -- : BFD_RELOC_IA64_IPLTMSB - -- : BFD_RELOC_IA64_IPLTLSB - -- : BFD_RELOC_IA64_COPY - -- : BFD_RELOC_IA64_LTOFF22X - -- : BFD_RELOC_IA64_LDXMOV - -- : BFD_RELOC_IA64_TPREL14 - -- : BFD_RELOC_IA64_TPREL22 - -- : BFD_RELOC_IA64_TPREL64I - -- : BFD_RELOC_IA64_TPREL64MSB - -- : BFD_RELOC_IA64_TPREL64LSB - -- : BFD_RELOC_IA64_LTOFF_TPREL22 - -- : BFD_RELOC_IA64_DTPMOD64MSB - -- : BFD_RELOC_IA64_DTPMOD64LSB - -- : BFD_RELOC_IA64_LTOFF_DTPMOD22 - -- : BFD_RELOC_IA64_DTPREL14 - -- : BFD_RELOC_IA64_DTPREL22 - -- : BFD_RELOC_IA64_DTPREL64I - -- : BFD_RELOC_IA64_DTPREL32MSB - -- : BFD_RELOC_IA64_DTPREL32LSB - -- : BFD_RELOC_IA64_DTPREL64MSB - -- : BFD_RELOC_IA64_DTPREL64LSB - -- : BFD_RELOC_IA64_LTOFF_DTPREL22 - Intel IA64 Relocations. - - -- : BFD_RELOC_M68HC11_HI8 - Motorola 68HC11 reloc. This is the 8 bit high part of an absolute - address. - - -- : BFD_RELOC_M68HC11_LO8 - Motorola 68HC11 reloc. This is the 8 bit low part of an absolute - address. - - -- : BFD_RELOC_M68HC11_3B - Motorola 68HC11 reloc. This is the 3 bit of a value. - - -- : BFD_RELOC_M68HC11_RL_JUMP - Motorola 68HC11 reloc. This reloc marks the beginning of a - jump/call instruction. It is used for linker relaxation to - correctly identify beginning of instruction and change some - branches to use PC-relative addressing mode. - - -- : BFD_RELOC_M68HC11_RL_GROUP - Motorola 68HC11 reloc. This reloc marks a group of several - instructions that gcc generates and for which the linker - relaxation pass can modify and/or remove some of them. - - -- : BFD_RELOC_M68HC11_LO16 - Motorola 68HC11 reloc. This is the 16-bit lower part of an - address. It is used for 'call' instruction to specify the symbol - address without any special transformation (due to memory bank - window). - - -- : BFD_RELOC_M68HC11_PAGE - Motorola 68HC11 reloc. This is a 8-bit reloc that specifies the - page number of an address. It is used by 'call' instruction to - specify the page number of the symbol. - - -- : BFD_RELOC_M68HC11_24 - Motorola 68HC11 reloc. This is a 24-bit reloc that represents the - address with a 16-bit value and a 8-bit page number. The symbol - address is transformed to follow the 16K memory bank of 68HC12 - (seen as mapped in the window). - - -- : BFD_RELOC_M68HC12_5B - Motorola 68HC12 reloc. This is the 5 bits of a value. - - -- : BFD_RELOC_16C_NUM08 - -- : BFD_RELOC_16C_NUM08_C - -- : BFD_RELOC_16C_NUM16 - -- : BFD_RELOC_16C_NUM16_C - -- : BFD_RELOC_16C_NUM32 - -- : BFD_RELOC_16C_NUM32_C - -- : BFD_RELOC_16C_DISP04 - -- : BFD_RELOC_16C_DISP04_C - -- : BFD_RELOC_16C_DISP08 - -- : BFD_RELOC_16C_DISP08_C - -- : BFD_RELOC_16C_DISP16 - -- : BFD_RELOC_16C_DISP16_C - -- : BFD_RELOC_16C_DISP24 - -- : BFD_RELOC_16C_DISP24_C - -- : BFD_RELOC_16C_DISP24a - -- : BFD_RELOC_16C_DISP24a_C - -- : BFD_RELOC_16C_REG04 - -- : BFD_RELOC_16C_REG04_C - -- : BFD_RELOC_16C_REG04a - -- : BFD_RELOC_16C_REG04a_C - -- : BFD_RELOC_16C_REG14 - -- : BFD_RELOC_16C_REG14_C - -- : BFD_RELOC_16C_REG16 - -- : BFD_RELOC_16C_REG16_C - -- : BFD_RELOC_16C_REG20 - -- : BFD_RELOC_16C_REG20_C - -- : BFD_RELOC_16C_ABS20 - -- : BFD_RELOC_16C_ABS20_C - -- : BFD_RELOC_16C_ABS24 - -- : BFD_RELOC_16C_ABS24_C - -- : BFD_RELOC_16C_IMM04 - -- : BFD_RELOC_16C_IMM04_C - -- : BFD_RELOC_16C_IMM16 - -- : BFD_RELOC_16C_IMM16_C - -- : BFD_RELOC_16C_IMM20 - -- : BFD_RELOC_16C_IMM20_C - -- : BFD_RELOC_16C_IMM24 - -- : BFD_RELOC_16C_IMM24_C - -- : BFD_RELOC_16C_IMM32 - -- : BFD_RELOC_16C_IMM32_C - NS CR16C Relocations. - - -- : BFD_RELOC_CRX_REL4 - -- : BFD_RELOC_CRX_REL8 - -- : BFD_RELOC_CRX_REL8_CMP - -- : BFD_RELOC_CRX_REL16 - -- : BFD_RELOC_CRX_REL24 - -- : BFD_RELOC_CRX_REL32 - -- : BFD_RELOC_CRX_REGREL12 - -- : BFD_RELOC_CRX_REGREL22 - -- : BFD_RELOC_CRX_REGREL28 - -- : BFD_RELOC_CRX_REGREL32 - -- : BFD_RELOC_CRX_ABS16 - -- : BFD_RELOC_CRX_ABS32 - -- : BFD_RELOC_CRX_NUM8 - -- : BFD_RELOC_CRX_NUM16 - -- : BFD_RELOC_CRX_NUM32 - -- : BFD_RELOC_CRX_IMM16 - -- : BFD_RELOC_CRX_IMM32 - -- : BFD_RELOC_CRX_SWITCH8 - -- : BFD_RELOC_CRX_SWITCH16 - -- : BFD_RELOC_CRX_SWITCH32 - NS CRX Relocations. - - -- : BFD_RELOC_CRIS_BDISP8 - -- : BFD_RELOC_CRIS_UNSIGNED_5 - -- : BFD_RELOC_CRIS_SIGNED_6 - -- : BFD_RELOC_CRIS_UNSIGNED_6 - -- : BFD_RELOC_CRIS_SIGNED_8 - -- : BFD_RELOC_CRIS_UNSIGNED_8 - -- : BFD_RELOC_CRIS_SIGNED_16 - -- : BFD_RELOC_CRIS_UNSIGNED_16 - -- : BFD_RELOC_CRIS_LAPCQ_OFFSET - -- : BFD_RELOC_CRIS_UNSIGNED_4 - These relocs are only used within the CRIS assembler. They are not - (at present) written to any object files. - - -- : BFD_RELOC_CRIS_COPY - -- : BFD_RELOC_CRIS_GLOB_DAT - -- : BFD_RELOC_CRIS_JUMP_SLOT - -- : BFD_RELOC_CRIS_RELATIVE - Relocs used in ELF shared libraries for CRIS. - - -- : BFD_RELOC_CRIS_32_GOT - 32-bit offset to symbol-entry within GOT. - - -- : BFD_RELOC_CRIS_16_GOT - 16-bit offset to symbol-entry within GOT. - - -- : BFD_RELOC_CRIS_32_GOTPLT - 32-bit offset to symbol-entry within GOT, with PLT handling. - - -- : BFD_RELOC_CRIS_16_GOTPLT - 16-bit offset to symbol-entry within GOT, with PLT handling. - - -- : BFD_RELOC_CRIS_32_GOTREL - 32-bit offset to symbol, relative to GOT. - - -- : BFD_RELOC_CRIS_32_PLT_GOTREL - 32-bit offset to symbol with PLT entry, relative to GOT. - - -- : BFD_RELOC_CRIS_32_PLT_PCREL - 32-bit offset to symbol with PLT entry, relative to this - relocation. - - -- : BFD_RELOC_860_COPY - -- : BFD_RELOC_860_GLOB_DAT - -- : BFD_RELOC_860_JUMP_SLOT - -- : BFD_RELOC_860_RELATIVE - -- : BFD_RELOC_860_PC26 - -- : BFD_RELOC_860_PLT26 - -- : BFD_RELOC_860_PC16 - -- : BFD_RELOC_860_LOW0 - -- : BFD_RELOC_860_SPLIT0 - -- : BFD_RELOC_860_LOW1 - -- : BFD_RELOC_860_SPLIT1 - -- : BFD_RELOC_860_LOW2 - -- : BFD_RELOC_860_SPLIT2 - -- : BFD_RELOC_860_LOW3 - -- : BFD_RELOC_860_LOGOT0 - -- : BFD_RELOC_860_SPGOT0 - -- : BFD_RELOC_860_LOGOT1 - -- : BFD_RELOC_860_SPGOT1 - -- : BFD_RELOC_860_LOGOTOFF0 - -- : BFD_RELOC_860_SPGOTOFF0 - -- : BFD_RELOC_860_LOGOTOFF1 - -- : BFD_RELOC_860_SPGOTOFF1 - -- : BFD_RELOC_860_LOGOTOFF2 - -- : BFD_RELOC_860_LOGOTOFF3 - -- : BFD_RELOC_860_LOPC - -- : BFD_RELOC_860_HIGHADJ - -- : BFD_RELOC_860_HAGOT - -- : BFD_RELOC_860_HAGOTOFF - -- : BFD_RELOC_860_HAPC - -- : BFD_RELOC_860_HIGH - -- : BFD_RELOC_860_HIGOT - -- : BFD_RELOC_860_HIGOTOFF - Intel i860 Relocations. - - -- : BFD_RELOC_OPENRISC_ABS_26 - -- : BFD_RELOC_OPENRISC_REL_26 - OpenRISC Relocations. - - -- : BFD_RELOC_H8_DIR16A8 - -- : BFD_RELOC_H8_DIR16R8 - -- : BFD_RELOC_H8_DIR24A8 - -- : BFD_RELOC_H8_DIR24R8 - -- : BFD_RELOC_H8_DIR32A16 - H8 elf Relocations. - - -- : BFD_RELOC_XSTORMY16_REL_12 - -- : BFD_RELOC_XSTORMY16_12 - -- : BFD_RELOC_XSTORMY16_24 - -- : BFD_RELOC_XSTORMY16_FPTR16 - Sony Xstormy16 Relocations. - - -- : BFD_RELOC_VAX_GLOB_DAT - -- : BFD_RELOC_VAX_JMP_SLOT - -- : BFD_RELOC_VAX_RELATIVE - Relocations used by VAX ELF. - - -- : BFD_RELOC_MSP430_10_PCREL - -- : BFD_RELOC_MSP430_16_PCREL - -- : BFD_RELOC_MSP430_16 - -- : BFD_RELOC_MSP430_16_PCREL_BYTE - -- : BFD_RELOC_MSP430_16_BYTE - -- : BFD_RELOC_MSP430_2X_PCREL - -- : BFD_RELOC_MSP430_RL_PCREL - msp430 specific relocation codes - - -- : BFD_RELOC_IQ2000_OFFSET_16 - -- : BFD_RELOC_IQ2000_OFFSET_21 - -- : BFD_RELOC_IQ2000_UHI16 - IQ2000 Relocations. - - -- : BFD_RELOC_XTENSA_RTLD - Special Xtensa relocation used only by PLT entries in ELF shared - objects to indicate that the runtime linker should set the value - to one of its own internal functions or data structures. - - -- : BFD_RELOC_XTENSA_GLOB_DAT - -- : BFD_RELOC_XTENSA_JMP_SLOT - -- : BFD_RELOC_XTENSA_RELATIVE - Xtensa relocations for ELF shared objects. - - -- : BFD_RELOC_XTENSA_PLT - Xtensa relocation used in ELF object files for symbols that may - require PLT entries. Otherwise, this is just a generic 32-bit - relocation. - - -- : BFD_RELOC_XTENSA_DIFF8 - -- : BFD_RELOC_XTENSA_DIFF16 - -- : BFD_RELOC_XTENSA_DIFF32 - Xtensa relocations to mark the difference of two local symbols. - These are only needed to support linker relaxation and can be - ignored when not relaxing. The field is set to the value of the - difference assuming no relaxation. The relocation encodes the - position of the first symbol so the linker can determine whether - to adjust the field value. - - -- : BFD_RELOC_XTENSA_SLOT0_OP - -- : BFD_RELOC_XTENSA_SLOT1_OP - -- : BFD_RELOC_XTENSA_SLOT2_OP - -- : BFD_RELOC_XTENSA_SLOT3_OP - -- : BFD_RELOC_XTENSA_SLOT4_OP - -- : BFD_RELOC_XTENSA_SLOT5_OP - -- : BFD_RELOC_XTENSA_SLOT6_OP - -- : BFD_RELOC_XTENSA_SLOT7_OP - -- : BFD_RELOC_XTENSA_SLOT8_OP - -- : BFD_RELOC_XTENSA_SLOT9_OP - -- : BFD_RELOC_XTENSA_SLOT10_OP - -- : BFD_RELOC_XTENSA_SLOT11_OP - -- : BFD_RELOC_XTENSA_SLOT12_OP - -- : BFD_RELOC_XTENSA_SLOT13_OP - -- : BFD_RELOC_XTENSA_SLOT14_OP - Generic Xtensa relocations for instruction operands. Only the slot - number is encoded in the relocation. The relocation applies to the - last PC-relative immediate operand, or if there are no PC-relative - immediates, to the last immediate operand. - - -- : BFD_RELOC_XTENSA_SLOT0_ALT - -- : BFD_RELOC_XTENSA_SLOT1_ALT - -- : BFD_RELOC_XTENSA_SLOT2_ALT - -- : BFD_RELOC_XTENSA_SLOT3_ALT - -- : BFD_RELOC_XTENSA_SLOT4_ALT - -- : BFD_RELOC_XTENSA_SLOT5_ALT - -- : BFD_RELOC_XTENSA_SLOT6_ALT - -- : BFD_RELOC_XTENSA_SLOT7_ALT - -- : BFD_RELOC_XTENSA_SLOT8_ALT - -- : BFD_RELOC_XTENSA_SLOT9_ALT - -- : BFD_RELOC_XTENSA_SLOT10_ALT - -- : BFD_RELOC_XTENSA_SLOT11_ALT - -- : BFD_RELOC_XTENSA_SLOT12_ALT - -- : BFD_RELOC_XTENSA_SLOT13_ALT - -- : BFD_RELOC_XTENSA_SLOT14_ALT - Alternate Xtensa relocations. Only the slot is encoded in the - relocation. The meaning of these relocations is opcode-specific. - - -- : BFD_RELOC_XTENSA_OP0 - -- : BFD_RELOC_XTENSA_OP1 - -- : BFD_RELOC_XTENSA_OP2 - Xtensa relocations for backward compatibility. These have all been - replaced by BFD_RELOC_XTENSA_SLOT0_OP. - - -- : BFD_RELOC_XTENSA_ASM_EXPAND - Xtensa relocation to mark that the assembler expanded the - instructions from an original target. The expansion size is - encoded in the reloc size. - - -- : BFD_RELOC_XTENSA_ASM_SIMPLIFY - Xtensa relocation to mark that the linker should simplify - assembler-expanded instructions. This is commonly used internally - by the linker after analysis of a BFD_RELOC_XTENSA_ASM_EXPAND. - - - typedef enum bfd_reloc_code_real bfd_reloc_code_real_type; - -2.11.0.2 `bfd_reloc_type_lookup' -................................ - -*Synopsis* - reloc_howto_type *bfd_reloc_type_lookup - (bfd *abfd, bfd_reloc_code_real_type code); - *Description* -Return a pointer to a howto structure which, when invoked, will perform -the relocation CODE on data from the architecture noted. - -2.11.0.3 `bfd_default_reloc_type_lookup' -........................................ - -*Synopsis* - reloc_howto_type *bfd_default_reloc_type_lookup - (bfd *abfd, bfd_reloc_code_real_type code); - *Description* -Provides a default relocation lookup routine for any architecture. - -2.11.0.4 `bfd_get_reloc_code_name' -.................................. - -*Synopsis* - const char *bfd_get_reloc_code_name (bfd_reloc_code_real_type code); - *Description* -Provides a printable name for the supplied relocation code. Useful -mainly for printing error messages. - -2.11.0.5 `bfd_generic_relax_section' -.................................... - -*Synopsis* - bfd_boolean bfd_generic_relax_section - (bfd *abfd, - asection *section, - struct bfd_link_info *, - bfd_boolean *); - *Description* -Provides default handling for relaxing for back ends which don't do -relaxing. - -2.11.0.6 `bfd_generic_gc_sections' -.................................. - -*Synopsis* - bfd_boolean bfd_generic_gc_sections - (bfd *, struct bfd_link_info *); - *Description* -Provides default handling for relaxing for back ends which don't do -section gc - i.e., does nothing. - -2.11.0.7 `bfd_generic_merge_sections' -..................................... - -*Synopsis* - bfd_boolean bfd_generic_merge_sections - (bfd *, struct bfd_link_info *); - *Description* -Provides default handling for SEC_MERGE section merging for back ends -which don't have SEC_MERGE support - i.e., does nothing. - -2.11.0.8 `bfd_generic_get_relocated_section_contents' -..................................................... - -*Synopsis* - bfd_byte *bfd_generic_get_relocated_section_contents - (bfd *abfd, - struct bfd_link_info *link_info, - struct bfd_link_order *link_order, - bfd_byte *data, - bfd_boolean relocatable, - asymbol **symbols); - *Description* -Provides default handling of relocation effort for back ends which -can't be bothered to do it efficiently. - - -File: bfd.info, Node: Core Files, Next: Targets, Prev: Relocations, Up: BFD front end - -2.12 Core files -=============== - -*Description* -These are functions pertaining to core files. - -2.12.0.1 `bfd_core_file_failing_command' -........................................ - -*Synopsis* - const char *bfd_core_file_failing_command (bfd *abfd); - *Description* -Return a read-only string explaining which program was running when it -failed and produced the core file ABFD. - -2.12.0.2 `bfd_core_file_failing_signal' -....................................... - -*Synopsis* - int bfd_core_file_failing_signal (bfd *abfd); - *Description* -Returns the signal number which caused the core dump which generated -the file the BFD ABFD is attached to. - -2.12.0.3 `core_file_matches_executable_p' -......................................... - -*Synopsis* - bfd_boolean core_file_matches_executable_p - (bfd *core_bfd, bfd *exec_bfd); - *Description* -Return `TRUE' if the core file attached to CORE_BFD was generated by a -run of the executable file attached to EXEC_BFD, `FALSE' otherwise. - - -File: bfd.info, Node: Targets, Next: Architectures, Prev: Core Files, Up: BFD front end - -2.13 Targets -============ - -*Description* -Each port of BFD to a different machine requires the creation of a -target back end. All the back end provides to the root part of BFD is a -structure containing pointers to functions which perform certain low -level operations on files. BFD translates the applications's requests -through a pointer into calls to the back end routines. - - When a file is opened with `bfd_openr', its format and target are -unknown. BFD uses various mechanisms to determine how to interpret the -file. The operations performed are: - - * Create a BFD by calling the internal routine `_bfd_new_bfd', then - call `bfd_find_target' with the target string supplied to - `bfd_openr' and the new BFD pointer. - - * If a null target string was provided to `bfd_find_target', look up - the environment variable `GNUTARGET' and use that as the target - string. - - * If the target string is still `NULL', or the target string is - `default', then use the first item in the target vector as the - target type, and set `target_defaulted' in the BFD to cause - `bfd_check_format' to loop through all the targets. *Note - bfd_target::. *Note Formats::. - - * Otherwise, inspect the elements in the target vector one by one, - until a match on target name is found. When found, use it. - - * Otherwise return the error `bfd_error_invalid_target' to - `bfd_openr'. - - * `bfd_openr' attempts to open the file using `bfd_open_file', and - returns the BFD. - Once the BFD has been opened and the target selected, the file -format may be determined. This is done by calling `bfd_check_format' on -the BFD with a suggested format. If `target_defaulted' has been set, -each possible target type is tried to see if it recognizes the -specified format. `bfd_check_format' returns `TRUE' when the caller -guesses right. - -* Menu: - -* bfd_target:: - - -File: bfd.info, Node: bfd_target, Prev: Targets, Up: Targets - -2.13.1 bfd_target ------------------ - -*Description* -This structure contains everything that BFD knows about a target. It -includes things like its byte order, name, and which routines to call -to do various operations. - - Every BFD points to a target structure with its `xvec' member. - - The macros below are used to dispatch to functions through the -`bfd_target' vector. They are used in a number of macros further down -in `bfd.h', and are also used when calling various routines by hand -inside the BFD implementation. The ARGLIST argument must be -parenthesized; it contains all the arguments to the called function. - - They make the documentation (more) unpleasant to read, so if someone -wants to fix this and not break the above, please do. - #define BFD_SEND(bfd, message, arglist) \ - ((*((bfd)->xvec->message)) arglist) - - #ifdef DEBUG_BFD_SEND - #undef BFD_SEND - #define BFD_SEND(bfd, message, arglist) \ - (((bfd) && (bfd)->xvec && (bfd)->xvec->message) ? \ - ((*((bfd)->xvec->message)) arglist) : \ - (bfd_assert (__FILE__,__LINE__), NULL)) - #endif - For operations which index on the BFD format: - #define BFD_SEND_FMT(bfd, message, arglist) \ - (((bfd)->xvec->message[(int) ((bfd)->format)]) arglist) - - #ifdef DEBUG_BFD_SEND - #undef BFD_SEND_FMT - #define BFD_SEND_FMT(bfd, message, arglist) \ - (((bfd) && (bfd)->xvec && (bfd)->xvec->message) ? \ - (((bfd)->xvec->message[(int) ((bfd)->format)]) arglist) : \ - (bfd_assert (__FILE__,__LINE__), NULL)) - #endif - This is the structure which defines the type of BFD this is. The -`xvec' member of the struct `bfd' itself points here. Each module that -implements access to a different target under BFD, defines one of these. - - FIXME, these names should be rationalised with the names of the -entry points which call them. Too bad we can't have one macro to define -them both! - enum bfd_flavour - { - bfd_target_unknown_flavour, - bfd_target_aout_flavour, - bfd_target_coff_flavour, - bfd_target_ecoff_flavour, - bfd_target_xcoff_flavour, - bfd_target_elf_flavour, - bfd_target_ieee_flavour, - bfd_target_nlm_flavour, - bfd_target_oasys_flavour, - bfd_target_tekhex_flavour, - bfd_target_srec_flavour, - bfd_target_ihex_flavour, - bfd_target_som_flavour, - bfd_target_os9k_flavour, - bfd_target_versados_flavour, - bfd_target_msdos_flavour, - bfd_target_ovax_flavour, - bfd_target_evax_flavour, - bfd_target_mmo_flavour, - bfd_target_mach_o_flavour, - bfd_target_pef_flavour, - bfd_target_pef_xlib_flavour, - bfd_target_sym_flavour - }; - - enum bfd_endian { BFD_ENDIAN_BIG, BFD_ENDIAN_LITTLE, BFD_ENDIAN_UNKNOWN }; - - /* Forward declaration. */ - typedef struct bfd_link_info _bfd_link_info; - - typedef struct bfd_target - { - /* Identifies the kind of target, e.g., SunOS4, Ultrix, etc. */ - char *name; - - /* The "flavour" of a back end is a general indication about - the contents of a file. */ - enum bfd_flavour flavour; - - /* The order of bytes within the data area of a file. */ - enum bfd_endian byteorder; - - /* The order of bytes within the header parts of a file. */ - enum bfd_endian header_byteorder; - - /* A mask of all the flags which an executable may have set - - from the set `BFD_NO_FLAGS', `HAS_RELOC', ...`D_PAGED'. */ - flagword object_flags; - - /* A mask of all the flags which a section may have set - from - the set `SEC_NO_FLAGS', `SEC_ALLOC', ...`SET_NEVER_LOAD'. */ - flagword section_flags; - - /* The character normally found at the front of a symbol. - (if any), perhaps `_'. */ - char symbol_leading_char; - - /* The pad character for file names within an archive header. */ - char ar_pad_char; - - /* The maximum number of characters in an archive header. */ - unsigned short ar_max_namelen; - - /* Entries for byte swapping for data. These are different from the - other entry points, since they don't take a BFD as the first argument. - Certain other handlers could do the same. */ - bfd_uint64_t (*bfd_getx64) (const void *); - bfd_int64_t (*bfd_getx_signed_64) (const void *); - void (*bfd_putx64) (bfd_uint64_t, void *); - bfd_vma (*bfd_getx32) (const void *); - bfd_signed_vma (*bfd_getx_signed_32) (const void *); - void (*bfd_putx32) (bfd_vma, void *); - bfd_vma (*bfd_getx16) (const void *); - bfd_signed_vma (*bfd_getx_signed_16) (const void *); - void (*bfd_putx16) (bfd_vma, void *); - - /* Byte swapping for the headers. */ - bfd_uint64_t (*bfd_h_getx64) (const void *); - bfd_int64_t (*bfd_h_getx_signed_64) (const void *); - void (*bfd_h_putx64) (bfd_uint64_t, void *); - bfd_vma (*bfd_h_getx32) (const void *); - bfd_signed_vma (*bfd_h_getx_signed_32) (const void *); - void (*bfd_h_putx32) (bfd_vma, void *); - bfd_vma (*bfd_h_getx16) (const void *); - bfd_signed_vma (*bfd_h_getx_signed_16) (const void *); - void (*bfd_h_putx16) (bfd_vma, void *); - - /* Format dependent routines: these are vectors of entry points - within the target vector structure, one for each format to check. */ - - /* Check the format of a file being read. Return a `bfd_target *' or zero. */ - const struct bfd_target *(*_bfd_check_format[bfd_type_end]) (bfd *); - - /* Set the format of a file being written. */ - bfd_boolean (*_bfd_set_format[bfd_type_end]) (bfd *); - - /* Write cached information into a file being written, at `bfd_close'. */ - bfd_boolean (*_bfd_write_contents[bfd_type_end]) (bfd *); - The general target vector. These vectors are initialized using the -BFD_JUMP_TABLE macros. - - /* Generic entry points. */ - #define BFD_JUMP_TABLE_GENERIC(NAME) \ - NAME##_close_and_cleanup, \ - NAME##_bfd_free_cached_info, \ - NAME##_new_section_hook, \ - NAME##_get_section_contents, \ - NAME##_get_section_contents_in_window - - /* Called when the BFD is being closed to do any necessary cleanup. */ - bfd_boolean (*_close_and_cleanup) (bfd *); - /* Ask the BFD to free all cached information. */ - bfd_boolean (*_bfd_free_cached_info) (bfd *); - /* Called when a new section is created. */ - bfd_boolean (*_new_section_hook) (bfd *, sec_ptr); - /* Read the contents of a section. */ - bfd_boolean (*_bfd_get_section_contents) - (bfd *, sec_ptr, void *, file_ptr, bfd_size_type); - bfd_boolean (*_bfd_get_section_contents_in_window) - (bfd *, sec_ptr, bfd_window *, file_ptr, bfd_size_type); - - /* Entry points to copy private data. */ - #define BFD_JUMP_TABLE_COPY(NAME) \ - NAME##_bfd_copy_private_bfd_data, \ - NAME##_bfd_merge_private_bfd_data, \ - NAME##_bfd_copy_private_section_data, \ - NAME##_bfd_copy_private_symbol_data, \ - NAME##_bfd_copy_private_header_data, \ - NAME##_bfd_set_private_flags, \ - NAME##_bfd_print_private_bfd_data - - /* Called to copy BFD general private data from one object file - to another. */ - bfd_boolean (*_bfd_copy_private_bfd_data) (bfd *, bfd *); - /* Called to merge BFD general private data from one object file - to a common output file when linking. */ - bfd_boolean (*_bfd_merge_private_bfd_data) (bfd *, bfd *); - /* Called to copy BFD private section data from one object file - to another. */ - bfd_boolean (*_bfd_copy_private_section_data) - (bfd *, sec_ptr, bfd *, sec_ptr); - /* Called to copy BFD private symbol data from one symbol - to another. */ - bfd_boolean (*_bfd_copy_private_symbol_data) - (bfd *, asymbol *, bfd *, asymbol *); - /* Called to copy BFD private header data from one object file - to another. */ - bfd_boolean (*_bfd_copy_private_header_data) - (bfd *, bfd *); - /* Called to set private backend flags. */ - bfd_boolean (*_bfd_set_private_flags) (bfd *, flagword); - - /* Called to print private BFD data. */ - bfd_boolean (*_bfd_print_private_bfd_data) (bfd *, void *); - - /* Core file entry points. */ - #define BFD_JUMP_TABLE_CORE(NAME) \ - NAME##_core_file_failing_command, \ - NAME##_core_file_failing_signal, \ - NAME##_core_file_matches_executable_p - - char * (*_core_file_failing_command) (bfd *); - int (*_core_file_failing_signal) (bfd *); - bfd_boolean (*_core_file_matches_executable_p) (bfd *, bfd *); - - /* Archive entry points. */ - #define BFD_JUMP_TABLE_ARCHIVE(NAME) \ - NAME##_slurp_armap, \ - NAME##_slurp_extended_name_table, \ - NAME##_construct_extended_name_table, \ - NAME##_truncate_arname, \ - NAME##_write_armap, \ - NAME##_read_ar_hdr, \ - NAME##_openr_next_archived_file, \ - NAME##_get_elt_at_index, \ - NAME##_generic_stat_arch_elt, \ - NAME##_update_armap_timestamp - - bfd_boolean (*_bfd_slurp_armap) (bfd *); - bfd_boolean (*_bfd_slurp_extended_name_table) (bfd *); - bfd_boolean (*_bfd_construct_extended_name_table) - (bfd *, char **, bfd_size_type *, const char **); - void (*_bfd_truncate_arname) (bfd *, const char *, char *); - bfd_boolean (*write_armap) - (bfd *, unsigned int, struct orl *, unsigned int, int); - void * (*_bfd_read_ar_hdr_fn) (bfd *); - bfd * (*openr_next_archived_file) (bfd *, bfd *); - #define bfd_get_elt_at_index(b,i) BFD_SEND (b, _bfd_get_elt_at_index, (b,i)) - bfd * (*_bfd_get_elt_at_index) (bfd *, symindex); - int (*_bfd_stat_arch_elt) (bfd *, struct stat *); - bfd_boolean (*_bfd_update_armap_timestamp) (bfd *); - - /* Entry points used for symbols. */ - #define BFD_JUMP_TABLE_SYMBOLS(NAME) \ - NAME##_get_symtab_upper_bound, \ - NAME##_canonicalize_symtab, \ - NAME##_make_empty_symbol, \ - NAME##_print_symbol, \ - NAME##_get_symbol_info, \ - NAME##_bfd_is_local_label_name, \ - NAME##_bfd_is_target_special_symbol, \ - NAME##_get_lineno, \ - NAME##_find_nearest_line, \ - NAME##_bfd_make_debug_symbol, \ - NAME##_read_minisymbols, \ - NAME##_minisymbol_to_symbol - - long (*_bfd_get_symtab_upper_bound) (bfd *); - long (*_bfd_canonicalize_symtab) - (bfd *, struct bfd_symbol **); - struct bfd_symbol * - (*_bfd_make_empty_symbol) (bfd *); - void (*_bfd_print_symbol) - (bfd *, void *, struct bfd_symbol *, bfd_print_symbol_type); - #define bfd_print_symbol(b,p,s,e) BFD_SEND (b, _bfd_print_symbol, (b,p,s,e)) - void (*_bfd_get_symbol_info) - (bfd *, struct bfd_symbol *, symbol_info *); - #define bfd_get_symbol_info(b,p,e) BFD_SEND (b, _bfd_get_symbol_info, (b,p,e)) - bfd_boolean (*_bfd_is_local_label_name) (bfd *, const char *); - bfd_boolean (*_bfd_is_target_special_symbol) (bfd *, asymbol *); - alent * (*_get_lineno) (bfd *, struct bfd_symbol *); - bfd_boolean (*_bfd_find_nearest_line) - (bfd *, struct bfd_section *, struct bfd_symbol **, bfd_vma, - const char **, const char **, unsigned int *); - /* Back-door to allow format-aware applications to create debug symbols - while using BFD for everything else. Currently used by the assembler - when creating COFF files. */ - asymbol * (*_bfd_make_debug_symbol) - (bfd *, void *, unsigned long size); - #define bfd_read_minisymbols(b, d, m, s) \ - BFD_SEND (b, _read_minisymbols, (b, d, m, s)) - long (*_read_minisymbols) - (bfd *, bfd_boolean, void **, unsigned int *); - #define bfd_minisymbol_to_symbol(b, d, m, f) \ - BFD_SEND (b, _minisymbol_to_symbol, (b, d, m, f)) - asymbol * (*_minisymbol_to_symbol) - (bfd *, bfd_boolean, const void *, asymbol *); - - /* Routines for relocs. */ - #define BFD_JUMP_TABLE_RELOCS(NAME) \ - NAME##_get_reloc_upper_bound, \ - NAME##_canonicalize_reloc, \ - NAME##_bfd_reloc_type_lookup - - long (*_get_reloc_upper_bound) (bfd *, sec_ptr); - long (*_bfd_canonicalize_reloc) - (bfd *, sec_ptr, arelent **, struct bfd_symbol **); - /* See documentation on reloc types. */ - reloc_howto_type * - (*reloc_type_lookup) (bfd *, bfd_reloc_code_real_type); - - /* Routines used when writing an object file. */ - #define BFD_JUMP_TABLE_WRITE(NAME) \ - NAME##_set_arch_mach, \ - NAME##_set_section_contents - - bfd_boolean (*_bfd_set_arch_mach) - (bfd *, enum bfd_architecture, unsigned long); - bfd_boolean (*_bfd_set_section_contents) - (bfd *, sec_ptr, const void *, file_ptr, bfd_size_type); - - /* Routines used by the linker. */ - #define BFD_JUMP_TABLE_LINK(NAME) \ - NAME##_sizeof_headers, \ - NAME##_bfd_get_relocated_section_contents, \ - NAME##_bfd_relax_section, \ - NAME##_bfd_link_hash_table_create, \ - NAME##_bfd_link_hash_table_free, \ - NAME##_bfd_link_add_symbols, \ - NAME##_bfd_link_just_syms, \ - NAME##_bfd_final_link, \ - NAME##_bfd_link_split_section, \ - NAME##_bfd_gc_sections, \ - NAME##_bfd_merge_sections, \ - NAME##_bfd_is_group_section, \ - NAME##_bfd_discard_group, \ - NAME##_section_already_linked \ - - int (*_bfd_sizeof_headers) (bfd *, bfd_boolean); - bfd_byte * (*_bfd_get_relocated_section_contents) - (bfd *, struct bfd_link_info *, struct bfd_link_order *, - bfd_byte *, bfd_boolean, struct bfd_symbol **); - - bfd_boolean (*_bfd_relax_section) - (bfd *, struct bfd_section *, struct bfd_link_info *, bfd_boolean *); - - /* Create a hash table for the linker. Different backends store - different information in this table. */ - struct bfd_link_hash_table * - (*_bfd_link_hash_table_create) (bfd *); - - /* Release the memory associated with the linker hash table. */ - void (*_bfd_link_hash_table_free) (struct bfd_link_hash_table *); - - /* Add symbols from this object file into the hash table. */ - bfd_boolean (*_bfd_link_add_symbols) (bfd *, struct bfd_link_info *); - - /* Indicate that we are only retrieving symbol values from this section. */ - void (*_bfd_link_just_syms) (asection *, struct bfd_link_info *); - - /* Do a link based on the link_order structures attached to each - section of the BFD. */ - bfd_boolean (*_bfd_final_link) (bfd *, struct bfd_link_info *); - - /* Should this section be split up into smaller pieces during linking. */ - bfd_boolean (*_bfd_link_split_section) (bfd *, struct bfd_section *); - - /* Remove sections that are not referenced from the output. */ - bfd_boolean (*_bfd_gc_sections) (bfd *, struct bfd_link_info *); - - /* Attempt to merge SEC_MERGE sections. */ - bfd_boolean (*_bfd_merge_sections) (bfd *, struct bfd_link_info *); - - /* Is this section a member of a group? */ - bfd_boolean (*_bfd_is_group_section) (bfd *, const struct bfd_section *); - - /* Discard members of a group. */ - bfd_boolean (*_bfd_discard_group) (bfd *, struct bfd_section *); - - /* Check if SEC has been already linked during a reloceatable or - final link. */ - void (*_section_already_linked) (bfd *, struct bfd_section *); - - /* Routines to handle dynamic symbols and relocs. */ - #define BFD_JUMP_TABLE_DYNAMIC(NAME) \ - NAME##_get_dynamic_symtab_upper_bound, \ - NAME##_canonicalize_dynamic_symtab, \ - NAME##_get_synthetic_symtab, \ - NAME##_get_dynamic_reloc_upper_bound, \ - NAME##_canonicalize_dynamic_reloc - - /* Get the amount of memory required to hold the dynamic symbols. */ - long (*_bfd_get_dynamic_symtab_upper_bound) (bfd *); - /* Read in the dynamic symbols. */ - long (*_bfd_canonicalize_dynamic_symtab) - (bfd *, struct bfd_symbol **); - /* Create synthetized symbols. */ - long (*_bfd_get_synthetic_symtab) - (bfd *, long, struct bfd_symbol **, long, struct bfd_symbol **, - struct bfd_symbol **); - /* Get the amount of memory required to hold the dynamic relocs. */ - long (*_bfd_get_dynamic_reloc_upper_bound) (bfd *); - /* Read in the dynamic relocs. */ - long (*_bfd_canonicalize_dynamic_reloc) - (bfd *, arelent **, struct bfd_symbol **); - A pointer to an alternative bfd_target in case the current one is not -satisfactory. This can happen when the target cpu supports both big -and little endian code, and target chosen by the linker has the wrong -endianness. The function open_output() in ld/ldlang.c uses this field -to find an alternative output format that is suitable. - /* Opposite endian version of this target. */ - const struct bfd_target * alternative_target; - - /* Data for use by back-end routines, which isn't - generic enough to belong in this structure. */ - const void *backend_data; - - } bfd_target; - -2.13.1.1 `bfd_set_default_target' -................................. - -*Synopsis* - bfd_boolean bfd_set_default_target (const char *name); - *Description* -Set the default target vector to use when recognizing a BFD. This -takes the name of the target, which may be a BFD target name or a -configuration triplet. - -2.13.1.2 `bfd_find_target' -.......................... - -*Synopsis* - const bfd_target *bfd_find_target (const char *target_name, bfd *abfd); - *Description* -Return a pointer to the transfer vector for the object target named -TARGET_NAME. If TARGET_NAME is `NULL', choose the one in the -environment variable `GNUTARGET'; if that is null or not defined, then -choose the first entry in the target list. Passing in the string -"default" or setting the environment variable to "default" will cause -the first entry in the target list to be returned, and -"target_defaulted" will be set in the BFD. This causes -`bfd_check_format' to loop over all the targets to find the one that -matches the file being read. - -2.13.1.3 `bfd_target_list' -.......................... - -*Synopsis* - const char ** bfd_target_list (void); - *Description* -Return a freshly malloced NULL-terminated vector of the names of all -the valid BFD targets. Do not modify the names. - -2.13.1.4 `bfd_seach_for_target' -............................... - -*Synopsis* - const bfd_target *bfd_search_for_target - (int (*search_func) (const bfd_target *, void *), - void *); - *Description* -Return a pointer to the first transfer vector in the list of transfer -vectors maintained by BFD that produces a non-zero result when passed -to the function SEARCH_FUNC. The parameter DATA is passed, unexamined, -to the search function. - - -File: bfd.info, Node: Architectures, Next: Opening and Closing, Prev: Targets, Up: BFD front end - -2.14 Architectures -================== - -BFD keeps one atom in a BFD describing the architecture of the data -attached to the BFD: a pointer to a `bfd_arch_info_type'. - - Pointers to structures can be requested independently of a BFD so -that an architecture's information can be interrogated without access -to an open BFD. - - The architecture information is provided by each architecture -package. The set of default architectures is selected by the macro -`SELECT_ARCHITECTURES'. This is normally set up in the -`config/TARGET.mt' file of your choice. If the name is not defined, -then all the architectures supported are included. - - When BFD starts up, all the architectures are called with an -initialize method. It is up to the architecture back end to insert as -many items into the list of architectures as it wants to; generally -this would be one for each machine and one for the default case (an -item with a machine field of 0). - - BFD's idea of an architecture is implemented in `archures.c'. - -2.14.1 bfd_architecture ------------------------ - -*Description* -This enum gives the object file's CPU architecture, in a global -sense--i.e., what processor family does it belong to? Another field -indicates which processor within the family is in use. The machine -gives a number which distinguishes different versions of the -architecture, containing, for example, 2 and 3 for Intel i960 KA and -i960 KB, and 68020 and 68030 for Motorola 68020 and 68030. - enum bfd_architecture - { - bfd_arch_unknown, /* File arch not known. */ - bfd_arch_obscure, /* Arch known, not one of these. */ - bfd_arch_m68k, /* Motorola 68xxx */ - #define bfd_mach_m68000 1 - #define bfd_mach_m68008 2 - #define bfd_mach_m68010 3 - #define bfd_mach_m68020 4 - #define bfd_mach_m68030 5 - #define bfd_mach_m68040 6 - #define bfd_mach_m68060 7 - #define bfd_mach_cpu32 8 - #define bfd_mach_mcf5200 9 - #define bfd_mach_mcf5206e 10 - #define bfd_mach_mcf5307 11 - #define bfd_mach_mcf5407 12 - #define bfd_mach_mcf528x 13 - #define bfd_mach_mcfv4e 14 - #define bfd_mach_mcf521x 15 - #define bfd_mach_mcf5249 16 - #define bfd_mach_mcf547x 17 - #define bfd_mach_mcf548x 18 - bfd_arch_vax, /* DEC Vax */ - bfd_arch_i960, /* Intel 960 */ - /* The order of the following is important. - lower number indicates a machine type that - only accepts a subset of the instructions - available to machines with higher numbers. - The exception is the "ca", which is - incompatible with all other machines except - "core". */ - - #define bfd_mach_i960_core 1 - #define bfd_mach_i960_ka_sa 2 - #define bfd_mach_i960_kb_sb 3 - #define bfd_mach_i960_mc 4 - #define bfd_mach_i960_xa 5 - #define bfd_mach_i960_ca 6 - #define bfd_mach_i960_jx 7 - #define bfd_mach_i960_hx 8 - - bfd_arch_or32, /* OpenRISC 32 */ - - bfd_arch_a29k, /* AMD 29000 */ - bfd_arch_sparc, /* SPARC */ - #define bfd_mach_sparc 1 - /* The difference between v8plus and v9 is that v9 is a true 64 bit env. */ - #define bfd_mach_sparc_sparclet 2 - #define bfd_mach_sparc_sparclite 3 - #define bfd_mach_sparc_v8plus 4 - #define bfd_mach_sparc_v8plusa 5 /* with ultrasparc add'ns. */ - #define bfd_mach_sparc_sparclite_le 6 - #define bfd_mach_sparc_v9 7 - #define bfd_mach_sparc_v9a 8 /* with ultrasparc add'ns. */ - #define bfd_mach_sparc_v8plusb 9 /* with cheetah add'ns. */ - #define bfd_mach_sparc_v9b 10 /* with cheetah add'ns. */ - /* Nonzero if MACH has the v9 instruction set. */ - #define bfd_mach_sparc_v9_p(mach) \ - ((mach) >= bfd_mach_sparc_v8plus && (mach) <= bfd_mach_sparc_v9b \ - && (mach) != bfd_mach_sparc_sparclite_le) - /* Nonzero if MACH is a 64 bit sparc architecture. */ - #define bfd_mach_sparc_64bit_p(mach) \ - ((mach) >= bfd_mach_sparc_v9 && (mach) != bfd_mach_sparc_v8plusb) - bfd_arch_mips, /* MIPS Rxxxx */ - #define bfd_mach_mips3000 3000 - #define bfd_mach_mips3900 3900 - #define bfd_mach_mips4000 4000 - #define bfd_mach_mips4010 4010 - #define bfd_mach_mips4100 4100 - #define bfd_mach_mips4111 4111 - #define bfd_mach_mips4120 4120 - #define bfd_mach_mips4300 4300 - #define bfd_mach_mips4400 4400 - #define bfd_mach_mips4600 4600 - #define bfd_mach_mips4650 4650 - #define bfd_mach_mips5000 5000 - #define bfd_mach_mips5400 5400 - #define bfd_mach_mips5500 5500 - #define bfd_mach_mips6000 6000 - #define bfd_mach_mips7000 7000 - #define bfd_mach_mips8000 8000 - #define bfd_mach_mips9000 9000 - #define bfd_mach_mips10000 10000 - #define bfd_mach_mips12000 12000 - #define bfd_mach_mips16 16 - #define bfd_mach_mips5 5 - #define bfd_mach_mips_sb1 12310201 /* octal 'SB', 01 */ - #define bfd_mach_mipsisa32 32 - #define bfd_mach_mipsisa32r2 33 - #define bfd_mach_mipsisa64 64 - #define bfd_mach_mipsisa64r2 65 - bfd_arch_i386, /* Intel 386 */ - #define bfd_mach_i386_i386 1 - #define bfd_mach_i386_i8086 2 - #define bfd_mach_i386_i386_intel_syntax 3 - #define bfd_mach_x86_64 64 - #define bfd_mach_x86_64_intel_syntax 65 - bfd_arch_we32k, /* AT&T WE32xxx */ - bfd_arch_tahoe, /* CCI/Harris Tahoe */ - bfd_arch_i860, /* Intel 860 */ - bfd_arch_i370, /* IBM 360/370 Mainframes */ - bfd_arch_romp, /* IBM ROMP PC/RT */ - bfd_arch_alliant, /* Alliant */ - bfd_arch_convex, /* Convex */ - bfd_arch_m88k, /* Motorola 88xxx */ - bfd_arch_m98k, /* Motorola 98xxx */ - bfd_arch_pyramid, /* Pyramid Technology */ - bfd_arch_h8300, /* Renesas H8/300 (formerly Hitachi H8/300) */ - #define bfd_mach_h8300 1 - #define bfd_mach_h8300h 2 - #define bfd_mach_h8300s 3 - #define bfd_mach_h8300hn 4 - #define bfd_mach_h8300sn 5 - #define bfd_mach_h8300sx 6 - #define bfd_mach_h8300sxn 7 - bfd_arch_pdp11, /* DEC PDP-11 */ - bfd_arch_powerpc, /* PowerPC */ - #define bfd_mach_ppc 32 - #define bfd_mach_ppc64 64 - #define bfd_mach_ppc_403 403 - #define bfd_mach_ppc_403gc 4030 - #define bfd_mach_ppc_505 505 - #define bfd_mach_ppc_601 601 - #define bfd_mach_ppc_602 602 - #define bfd_mach_ppc_603 603 - #define bfd_mach_ppc_ec603e 6031 - #define bfd_mach_ppc_604 604 - #define bfd_mach_ppc_620 620 - #define bfd_mach_ppc_630 630 - #define bfd_mach_ppc_750 750 - #define bfd_mach_ppc_860 860 - #define bfd_mach_ppc_a35 35 - #define bfd_mach_ppc_rs64ii 642 - #define bfd_mach_ppc_rs64iii 643 - #define bfd_mach_ppc_7400 7400 - #define bfd_mach_ppc_e500 500 - bfd_arch_rs6000, /* IBM RS/6000 */ - #define bfd_mach_rs6k 6000 - #define bfd_mach_rs6k_rs1 6001 - #define bfd_mach_rs6k_rsc 6003 - #define bfd_mach_rs6k_rs2 6002 - bfd_arch_hppa, /* HP PA RISC */ - #define bfd_mach_hppa10 10 - #define bfd_mach_hppa11 11 - #define bfd_mach_hppa20 20 - #define bfd_mach_hppa20w 25 - bfd_arch_d10v, /* Mitsubishi D10V */ - #define bfd_mach_d10v 1 - #define bfd_mach_d10v_ts2 2 - #define bfd_mach_d10v_ts3 3 - bfd_arch_d30v, /* Mitsubishi D30V */ - bfd_arch_dlx, /* DLX */ - bfd_arch_m68hc11, /* Motorola 68HC11 */ - bfd_arch_m68hc12, /* Motorola 68HC12 */ - #define bfd_mach_m6812_default 0 - #define bfd_mach_m6812 1 - #define bfd_mach_m6812s 2 - bfd_arch_z8k, /* Zilog Z8000 */ - #define bfd_mach_z8001 1 - #define bfd_mach_z8002 2 - bfd_arch_h8500, /* Renesas H8/500 (formerly Hitachi H8/500) */ - bfd_arch_sh, /* Renesas / SuperH SH (formerly Hitachi SH) */ - #define bfd_mach_sh 1 - #define bfd_mach_sh2 0x20 - #define bfd_mach_sh_dsp 0x2d - #define bfd_mach_sh2a 0x2a - #define bfd_mach_sh2a_nofpu 0x2b - #define bfd_mach_sh2a_nofpu_or_sh4_nommu_nofpu 0x2a1 - #define bfd_mach_sh2a_nofpu_or_sh3_nommu 0x2a2 - #define bfd_mach_sh2a_or_sh4 0x2a3 - #define bfd_mach_sh2a_or_sh3e 0x2a4 - #define bfd_mach_sh2e 0x2e - #define bfd_mach_sh3 0x30 - #define bfd_mach_sh3_nommu 0x31 - #define bfd_mach_sh3_dsp 0x3d - #define bfd_mach_sh3e 0x3e - #define bfd_mach_sh4 0x40 - #define bfd_mach_sh4_nofpu 0x41 - #define bfd_mach_sh4_nommu_nofpu 0x42 - #define bfd_mach_sh4a 0x4a - #define bfd_mach_sh4a_nofpu 0x4b - #define bfd_mach_sh4al_dsp 0x4d - #define bfd_mach_sh5 0x50 - bfd_arch_alpha, /* Dec Alpha */ - #define bfd_mach_alpha_ev4 0x10 - #define bfd_mach_alpha_ev5 0x20 - #define bfd_mach_alpha_ev6 0x30 - bfd_arch_arm, /* Advanced Risc Machines ARM. */ - #define bfd_mach_arm_unknown 0 - #define bfd_mach_arm_2 1 - #define bfd_mach_arm_2a 2 - #define bfd_mach_arm_3 3 - #define bfd_mach_arm_3M 4 - #define bfd_mach_arm_4 5 - #define bfd_mach_arm_4T 6 - #define bfd_mach_arm_5 7 - #define bfd_mach_arm_5T 8 - #define bfd_mach_arm_5TE 9 - #define bfd_mach_arm_XScale 10 - #define bfd_mach_arm_ep9312 11 - #define bfd_mach_arm_iWMMXt 12 - bfd_arch_ns32k, /* National Semiconductors ns32000 */ - bfd_arch_w65, /* WDC 65816 */ - bfd_arch_tic30, /* Texas Instruments TMS320C30 */ - bfd_arch_tic4x, /* Texas Instruments TMS320C3X/4X */ - #define bfd_mach_tic3x 30 - #define bfd_mach_tic4x 40 - bfd_arch_tic54x, /* Texas Instruments TMS320C54X */ - bfd_arch_tic80, /* TI TMS320c80 (MVP) */ - bfd_arch_v850, /* NEC V850 */ - #define bfd_mach_v850 1 - #define bfd_mach_v850e 'E' - #define bfd_mach_v850e1 '1' - bfd_arch_arc, /* ARC Cores */ - #define bfd_mach_arc_5 5 - #define bfd_mach_arc_6 6 - #define bfd_mach_arc_7 7 - #define bfd_mach_arc_8 8 - bfd_arch_m32r, /* Renesas M32R (formerly Mitsubishi M32R/D) */ - #define bfd_mach_m32r 1 /* For backwards compatibility. */ - #define bfd_mach_m32rx 'x' - #define bfd_mach_m32r2 '2' - bfd_arch_mn10200, /* Matsushita MN10200 */ - bfd_arch_mn10300, /* Matsushita MN10300 */ - #define bfd_mach_mn10300 300 - #define bfd_mach_am33 330 - #define bfd_mach_am33_2 332 - bfd_arch_fr30, - #define bfd_mach_fr30 0x46523330 - bfd_arch_frv, - #define bfd_mach_frv 1 - #define bfd_mach_frvsimple 2 - #define bfd_mach_fr300 300 - #define bfd_mach_fr400 400 - #define bfd_mach_fr450 450 - #define bfd_mach_frvtomcat 499 /* fr500 prototype */ - #define bfd_mach_fr500 500 - #define bfd_mach_fr550 550 - bfd_arch_mcore, - bfd_arch_ia64, /* HP/Intel ia64 */ - #define bfd_mach_ia64_elf64 64 - #define bfd_mach_ia64_elf32 32 - bfd_arch_ip2k, /* Ubicom IP2K microcontrollers. */ - #define bfd_mach_ip2022 1 - #define bfd_mach_ip2022ext 2 - bfd_arch_iq2000, /* Vitesse IQ2000. */ - #define bfd_mach_iq2000 1 - #define bfd_mach_iq10 2 - bfd_arch_pj, - bfd_arch_avr, /* Atmel AVR microcontrollers. */ - #define bfd_mach_avr1 1 - #define bfd_mach_avr2 2 - #define bfd_mach_avr3 3 - #define bfd_mach_avr4 4 - #define bfd_mach_avr5 5 - bfd_arch_cr16c, /* National Semiconductor CompactRISC. */ - #define bfd_mach_cr16c 1 - bfd_arch_crx, /* National Semiconductor CRX. */ - #define bfd_mach_crx 1 - bfd_arch_cris, /* Axis CRIS */ - #define bfd_mach_cris_v0_v10 255 - #define bfd_mach_cris_v32 32 - #define bfd_mach_cris_v10_v32 1032 - bfd_arch_s390, /* IBM s390 */ - #define bfd_mach_s390_31 31 - #define bfd_mach_s390_64 64 - bfd_arch_openrisc, /* OpenRISC */ - bfd_arch_mmix, /* Donald Knuth's educational processor. */ - bfd_arch_xstormy16, - #define bfd_mach_xstormy16 1 - bfd_arch_msp430, /* Texas Instruments MSP430 architecture. */ - #define bfd_mach_msp11 11 - #define bfd_mach_msp110 110 - #define bfd_mach_msp12 12 - #define bfd_mach_msp13 13 - #define bfd_mach_msp14 14 - #define bfd_mach_msp15 15 - #define bfd_mach_msp16 16 - #define bfd_mach_msp31 31 - #define bfd_mach_msp32 32 - #define bfd_mach_msp33 33 - #define bfd_mach_msp41 41 - #define bfd_mach_msp42 42 - #define bfd_mach_msp43 43 - #define bfd_mach_msp44 44 - bfd_arch_xtensa, /* Tensilica's Xtensa cores. */ - #define bfd_mach_xtensa 1 - bfd_arch_maxq, /* Dallas MAXQ 10/20 */ - #define bfd_mach_maxq10 10 - #define bfd_mach_maxq20 20 - bfd_arch_last - }; - -2.14.2 bfd_arch_info --------------------- - -*Description* -This structure contains information on architectures for use within BFD. - - typedef struct bfd_arch_info - { - int bits_per_word; - int bits_per_address; - int bits_per_byte; - enum bfd_architecture arch; - unsigned long mach; - const char *arch_name; - const char *printable_name; - unsigned int section_align_power; - /* TRUE if this is the default machine for the architecture. - The default arch should be the first entry for an arch so that - all the entries for that arch can be accessed via `next'. */ - bfd_boolean the_default; - const struct bfd_arch_info * (*compatible) - (const struct bfd_arch_info *a, const struct bfd_arch_info *b); - - bfd_boolean (*scan) (const struct bfd_arch_info *, const char *); - - const struct bfd_arch_info *next; - } - bfd_arch_info_type; - -2.14.2.1 `bfd_printable_name' -............................. - -*Synopsis* - const char *bfd_printable_name (bfd *abfd); - *Description* -Return a printable string representing the architecture and machine -from the pointer to the architecture info structure. - -2.14.2.2 `bfd_scan_arch' -........................ - -*Synopsis* - const bfd_arch_info_type *bfd_scan_arch (const char *string); - *Description* -Figure out if BFD supports any cpu which could be described with the -name STRING. Return a pointer to an `arch_info' structure if a machine -is found, otherwise NULL. - -2.14.2.3 `bfd_arch_list' -........................ - -*Synopsis* - const char **bfd_arch_list (void); - *Description* -Return a freshly malloced NULL-terminated vector of the names of all -the valid BFD architectures. Do not modify the names. - -2.14.2.4 `bfd_arch_get_compatible' -.................................. - -*Synopsis* - const bfd_arch_info_type *bfd_arch_get_compatible - (const bfd *abfd, const bfd *bbfd, bfd_boolean accept_unknowns); - *Description* -Determine whether two BFDs' architectures and machine types are -compatible. Calculates the lowest common denominator between the two -architectures and machine types implied by the BFDs and returns a -pointer to an `arch_info' structure describing the compatible machine. - -2.14.2.5 `bfd_default_arch_struct' -.................................. - -*Description* -The `bfd_default_arch_struct' is an item of `bfd_arch_info_type' which -has been initialized to a fairly generic state. A BFD starts life by -pointing to this structure, until the correct back end has determined -the real architecture of the file. - extern const bfd_arch_info_type bfd_default_arch_struct; - -2.14.2.6 `bfd_set_arch_info' -............................ - -*Synopsis* - void bfd_set_arch_info (bfd *abfd, const bfd_arch_info_type *arg); - *Description* -Set the architecture info of ABFD to ARG. - -2.14.2.7 `bfd_default_set_arch_mach' -.................................... - -*Synopsis* - bfd_boolean bfd_default_set_arch_mach - (bfd *abfd, enum bfd_architecture arch, unsigned long mach); - *Description* -Set the architecture and machine type in BFD ABFD to ARCH and MACH. -Find the correct pointer to a structure and insert it into the -`arch_info' pointer. - -2.14.2.8 `bfd_get_arch' -....................... - -*Synopsis* - enum bfd_architecture bfd_get_arch (bfd *abfd); - *Description* -Return the enumerated type which describes the BFD ABFD's architecture. - -2.14.2.9 `bfd_get_mach' -....................... - -*Synopsis* - unsigned long bfd_get_mach (bfd *abfd); - *Description* -Return the long type which describes the BFD ABFD's machine. - -2.14.2.10 `bfd_arch_bits_per_byte' -.................................. - -*Synopsis* - unsigned int bfd_arch_bits_per_byte (bfd *abfd); - *Description* -Return the number of bits in one of the BFD ABFD's architecture's bytes. - -2.14.2.11 `bfd_arch_bits_per_address' -..................................... - -*Synopsis* - unsigned int bfd_arch_bits_per_address (bfd *abfd); - *Description* -Return the number of bits in one of the BFD ABFD's architecture's -addresses. - -2.14.2.12 `bfd_default_compatible' -.................................. - -*Synopsis* - const bfd_arch_info_type *bfd_default_compatible - (const bfd_arch_info_type *a, const bfd_arch_info_type *b); - *Description* -The default function for testing for compatibility. - -2.14.2.13 `bfd_default_scan' -............................ - -*Synopsis* - bfd_boolean bfd_default_scan - (const struct bfd_arch_info *info, const char *string); - *Description* -The default function for working out whether this is an architecture -hit and a machine hit. - -2.14.2.14 `bfd_get_arch_info' -............................. - -*Synopsis* - const bfd_arch_info_type *bfd_get_arch_info (bfd *abfd); - *Description* -Return the architecture info struct in ABFD. - -2.14.2.15 `bfd_lookup_arch' -........................... - -*Synopsis* - const bfd_arch_info_type *bfd_lookup_arch - (enum bfd_architecture arch, unsigned long machine); - *Description* -Look for the architecture info structure which matches the arguments -ARCH and MACHINE. A machine of 0 matches the machine/architecture -structure which marks itself as the default. - -2.14.2.16 `bfd_printable_arch_mach' -................................... - -*Synopsis* - const char *bfd_printable_arch_mach - (enum bfd_architecture arch, unsigned long machine); - *Description* -Return a printable string representing the architecture and machine -type. - - This routine is depreciated. - -2.14.2.17 `bfd_octets_per_byte' -............................... - -*Synopsis* - unsigned int bfd_octets_per_byte (bfd *abfd); - *Description* -Return the number of octets (8-bit quantities) per target byte (minimum -addressable unit). In most cases, this will be one, but some DSP -targets have 16, 32, or even 48 bits per byte. - -2.14.2.18 `bfd_arch_mach_octets_per_byte' -......................................... - -*Synopsis* - unsigned int bfd_arch_mach_octets_per_byte - (enum bfd_architecture arch, unsigned long machine); - *Description* -See bfd_octets_per_byte. - - This routine is provided for those cases where a bfd * is not -available - - -File: bfd.info, Node: Opening and Closing, Next: Internal, Prev: Architectures, Up: BFD front end - -2.15 Opening and closing BFDs -============================= - -2.15.0.1 `bfd_openr' -.................... - -*Synopsis* - bfd *bfd_openr (const char *filename, const char *target); - *Description* -Open the file FILENAME (using `fopen') with the target TARGET. Return -a pointer to the created BFD. - - Calls `bfd_find_target', so TARGET is interpreted as by that -function. - - If `NULL' is returned then an error has occured. Possible errors -are `bfd_error_no_memory', `bfd_error_invalid_target' or `system_call' -error. - -2.15.0.2 `bfd_fdopenr' -...................... - -*Synopsis* - bfd *bfd_fdopenr (const char *filename, const char *target, int fd); - *Description* -`bfd_fdopenr' is to `bfd_fopenr' much like `fdopen' is to `fopen'. It -opens a BFD on a file already described by the FD supplied. - - When the file is later `bfd_close'd, the file descriptor will be -closed. If the caller desires that this file descriptor be cached by -BFD (opened as needed, closed as needed to free descriptors for other -opens), with the supplied FD used as an initial file descriptor (but -subject to closure at any time), call bfd_set_cacheable(bfd, 1) on the -returned BFD. The default is to assume no caching; the file descriptor -will remain open until `bfd_close', and will not be affected by BFD -operations on other files. - - Possible errors are `bfd_error_no_memory', -`bfd_error_invalid_target' and `bfd_error_system_call'. - -2.15.0.3 `bfd_openstreamr' -.......................... - -*Synopsis* - bfd *bfd_openstreamr (const char *, const char *, void *); - *Description* -Open a BFD for read access on an existing stdio stream. When the BFD -is passed to `bfd_close', the stream will be closed. - -2.15.0.4 `bfd_openr_iovec' -.......................... - -*Synopsis* - bfd *bfd_openr_iovec (const char *filename, const char *target, - void *(*open) (struct bfd *nbfd, - void *open_closure), - void *open_closure, - file_ptr (*pread) (struct bfd *nbfd, - void *stream, - void *buf, - file_ptr nbytes, - file_ptr offset), - int (*close) (struct bfd *nbfd, - void *stream)); - *Description* -Create and return a BFD backed by a read-only STREAM. The STREAM is -created using OPEN, accessed using PREAD and destroyed using CLOSE. - - Calls `bfd_find_target', so TARGET is interpreted as by that -function. - - Calls OPEN (which can call `bfd_zalloc' and `bfd_get_filename') to -obtain the read-only stream backing the BFD. OPEN either succeeds -returning the non-`NULL' STREAM, or fails returning `NULL' (setting -`bfd_error'). - - Calls PREAD to request NBYTES of data from STREAM starting at OFFSET -(e.g., via a call to `bfd_read'). PREAD either succeeds returning the -number of bytes read (which can be less than NBYTES when end-of-file), -or fails returning -1 (setting `bfd_error'). - - Calls CLOSE when the BFD is later closed using `bfd_close'. CLOSE -either succeeds returning 0, or fails returning -1 (setting -`bfd_error'). - - If `bfd_openr_iovec' returns `NULL' then an error has occurred. -Possible errors are `bfd_error_no_memory', `bfd_error_invalid_target' -and `bfd_error_system_call'. - -2.15.0.5 `bfd_openw' -.................... - -*Synopsis* - bfd *bfd_openw (const char *filename, const char *target); - *Description* -Create a BFD, associated with file FILENAME, using the file format -TARGET, and return a pointer to it. - - Possible errors are `bfd_error_system_call', `bfd_error_no_memory', -`bfd_error_invalid_target'. - -2.15.0.6 `bfd_close' -.................... - -*Synopsis* - bfd_boolean bfd_close (bfd *abfd); - *Description* -Close a BFD. If the BFD was open for writing, then pending operations -are completed and the file written out and closed. If the created file -is executable, then `chmod' is called to mark it as such. - - All memory attached to the BFD is released. - - The file descriptor associated with the BFD is closed (even if it -was passed in to BFD by `bfd_fdopenr'). - - *Returns* -`TRUE' is returned if all is ok, otherwise `FALSE'. - -2.15.0.7 `bfd_close_all_done' -............................. - -*Synopsis* - bfd_boolean bfd_close_all_done (bfd *); - *Description* -Close a BFD. Differs from `bfd_close' since it does not complete any -pending operations. This routine would be used if the application had -just used BFD for swapping and didn't want to use any of the writing -code. - - If the created file is executable, then `chmod' is called to mark it -as such. - - All memory attached to the BFD is released. - - *Returns* -`TRUE' is returned if all is ok, otherwise `FALSE'. - -2.15.0.8 `bfd_create' -..................... - -*Synopsis* - bfd *bfd_create (const char *filename, bfd *templ); - *Description* -Create a new BFD in the manner of `bfd_openw', but without opening a -file. The new BFD takes the target from the target used by TEMPLATE. -The format is always set to `bfd_object'. - -2.15.0.9 `bfd_make_writable' -............................ - -*Synopsis* - bfd_boolean bfd_make_writable (bfd *abfd); - *Description* -Takes a BFD as created by `bfd_create' and converts it into one like as -returned by `bfd_openw'. It does this by converting the BFD to -BFD_IN_MEMORY. It's assumed that you will call `bfd_make_readable' on -this bfd later. - - *Returns* -`TRUE' is returned if all is ok, otherwise `FALSE'. - -2.15.0.10 `bfd_make_readable' -............................. - -*Synopsis* - bfd_boolean bfd_make_readable (bfd *abfd); - *Description* -Takes a BFD as created by `bfd_create' and `bfd_make_writable' and -converts it into one like as returned by `bfd_openr'. It does this by -writing the contents out to the memory buffer, then reversing the -direction. - - *Returns* -`TRUE' is returned if all is ok, otherwise `FALSE'. - -2.15.0.11 `bfd_alloc' -..................... - -*Synopsis* - void *bfd_alloc (bfd *abfd, bfd_size_type wanted); - *Description* -Allocate a block of WANTED bytes of memory attached to `abfd' and -return a pointer to it. - -2.15.0.12 `bfd_zalloc' -...................... - -*Synopsis* - void *bfd_zalloc (bfd *abfd, bfd_size_type wanted); - *Description* -Allocate a block of WANTED bytes of zeroed memory attached to `abfd' -and return a pointer to it. - -2.15.0.13 `bfd_calc_gnu_debuglink_crc32' -........................................ - -*Synopsis* - unsigned long bfd_calc_gnu_debuglink_crc32 - (unsigned long crc, const unsigned char *buf, bfd_size_type len); - *Description* -Computes a CRC value as used in the .gnu_debuglink section. Advances -the previously computed CRC value by computing and adding in the crc32 -for LEN bytes of BUF. - - *Returns* -Return the updated CRC32 value. - -2.15.0.14 `get_debug_link_info' -............................... - -*Synopsis* - char *get_debug_link_info (bfd *abfd, unsigned long *crc32_out); - *Description* -fetch the filename and CRC32 value for any separate debuginfo -associated with ABFD. Return NULL if no such info found, otherwise -return filename and update CRC32_OUT. - -2.15.0.15 `separate_debug_file_exists' -...................................... - -*Synopsis* - bfd_boolean separate_debug_file_exists - (char *name, unsigned long crc32); - *Description* -Checks to see if NAME is a file and if its contents match CRC32. - -2.15.0.16 `find_separate_debug_file' -.................................... - -*Synopsis* - char *find_separate_debug_file (bfd *abfd); - *Description* -Searches ABFD for a reference to separate debugging information, scans -various locations in the filesystem, including the file tree rooted at -DEBUG_FILE_DIRECTORY, and returns a filename of such debugging -information if the file is found and has matching CRC32. Returns NULL -if no reference to debugging file exists, or file cannot be found. - -2.15.0.17 `bfd_follow_gnu_debuglink' -.................................... - -*Synopsis* - char *bfd_follow_gnu_debuglink (bfd *abfd, const char *dir); - *Description* -Takes a BFD and searches it for a .gnu_debuglink section. If this -section is found, it examines the section for the name and checksum of -a '.debug' file containing auxiliary debugging information. It then -searches the filesystem for this .debug file in some standard -locations, including the directory tree rooted at DIR, and if found -returns the full filename. - - If DIR is NULL, it will search a default path configured into libbfd -at build time. [XXX this feature is not currently implemented]. - - *Returns* -`NULL' on any errors or failure to locate the .debug file, otherwise a -pointer to a heap-allocated string containing the filename. The caller -is responsible for freeing this string. - -2.15.0.18 `bfd_create_gnu_debuglink_section' -............................................ - -*Synopsis* - struct bfd_section *bfd_create_gnu_debuglink_section - (bfd *abfd, const char *filename); - *Description* -Takes a BFD and adds a .gnu_debuglink section to it. The section is -sized to be big enough to contain a link to the specified FILENAME. - - *Returns* -A pointer to the new section is returned if all is ok. Otherwise -`NULL' is returned and bfd_error is set. - -2.15.0.19 `bfd_fill_in_gnu_debuglink_section' -............................................. - -*Synopsis* - bfd_boolean bfd_fill_in_gnu_debuglink_section - (bfd *abfd, struct bfd_section *sect, const char *filename); - *Description* -Takes a BFD and containing a .gnu_debuglink section SECT and fills in -the contents of the section to contain a link to the specified -FILENAME. The filename should be relative to the current directory. - - *Returns* -`TRUE' is returned if all is ok. Otherwise `FALSE' is returned and -bfd_error is set. - - -File: bfd.info, Node: Internal, Next: File Caching, Prev: Opening and Closing, Up: BFD front end - -2.16 Internal functions -======================= - -*Description* -These routines are used within BFD. They are not intended for export, -but are documented here for completeness. - -2.16.0.1 `bfd_write_bigendian_4byte_int' -........................................ - -*Synopsis* - bfd_boolean bfd_write_bigendian_4byte_int (bfd *, unsigned int); - *Description* -Write a 4 byte integer I to the output BFD ABFD, in big endian order -regardless of what else is going on. This is useful in archives. - -2.16.0.2 `bfd_put_size' -....................... - -2.16.0.3 `bfd_get_size' -....................... - -*Description* -These macros as used for reading and writing raw data in sections; each -access (except for bytes) is vectored through the target format of the -BFD and mangled accordingly. The mangling performs any necessary endian -translations and removes alignment restrictions. Note that types -accepted and returned by these macros are identical so they can be -swapped around in macros--for example, `libaout.h' defines `GET_WORD' -to either `bfd_get_32' or `bfd_get_64'. - - In the put routines, VAL must be a `bfd_vma'. If we are on a system -without prototypes, the caller is responsible for making sure that is -true, with a cast if necessary. We don't cast them in the macro -definitions because that would prevent `lint' or `gcc -Wall' from -detecting sins such as passing a pointer. To detect calling these with -less than a `bfd_vma', use `gcc -Wconversion' on a host with 64 bit -`bfd_vma''s. - - /* Byte swapping macros for user section data. */ - - #define bfd_put_8(abfd, val, ptr) \ - ((void) (*((unsigned char *) (ptr)) = (val) & 0xff)) - #define bfd_put_signed_8 \ - bfd_put_8 - #define bfd_get_8(abfd, ptr) \ - (*(unsigned char *) (ptr) & 0xff) - #define bfd_get_signed_8(abfd, ptr) \ - (((*(unsigned char *) (ptr) & 0xff) ^ 0x80) - 0x80) - - #define bfd_put_16(abfd, val, ptr) \ - BFD_SEND (abfd, bfd_putx16, ((val),(ptr))) - #define bfd_put_signed_16 \ - bfd_put_16 - #define bfd_get_16(abfd, ptr) \ - BFD_SEND (abfd, bfd_getx16, (ptr)) - #define bfd_get_signed_16(abfd, ptr) \ - BFD_SEND (abfd, bfd_getx_signed_16, (ptr)) - - #define bfd_put_32(abfd, val, ptr) \ - BFD_SEND (abfd, bfd_putx32, ((val),(ptr))) - #define bfd_put_signed_32 \ - bfd_put_32 - #define bfd_get_32(abfd, ptr) \ - BFD_SEND (abfd, bfd_getx32, (ptr)) - #define bfd_get_signed_32(abfd, ptr) \ - BFD_SEND (abfd, bfd_getx_signed_32, (ptr)) - - #define bfd_put_64(abfd, val, ptr) \ - BFD_SEND (abfd, bfd_putx64, ((val), (ptr))) - #define bfd_put_signed_64 \ - bfd_put_64 - #define bfd_get_64(abfd, ptr) \ - BFD_SEND (abfd, bfd_getx64, (ptr)) - #define bfd_get_signed_64(abfd, ptr) \ - BFD_SEND (abfd, bfd_getx_signed_64, (ptr)) - - #define bfd_get(bits, abfd, ptr) \ - ((bits) == 8 ? (bfd_vma) bfd_get_8 (abfd, ptr) \ - : (bits) == 16 ? bfd_get_16 (abfd, ptr) \ - : (bits) == 32 ? bfd_get_32 (abfd, ptr) \ - : (bits) == 64 ? bfd_get_64 (abfd, ptr) \ - : (abort (), (bfd_vma) - 1)) - - #define bfd_put(bits, abfd, val, ptr) \ - ((bits) == 8 ? bfd_put_8 (abfd, val, ptr) \ - : (bits) == 16 ? bfd_put_16 (abfd, val, ptr) \ - : (bits) == 32 ? bfd_put_32 (abfd, val, ptr) \ - : (bits) == 64 ? bfd_put_64 (abfd, val, ptr) \ - : (abort (), (void) 0)) - -2.16.0.4 `bfd_h_put_size' -......................... - -*Description* -These macros have the same function as their `bfd_get_x' brethren, -except that they are used for removing information for the header -records of object files. Believe it or not, some object files keep -their header records in big endian order and their data in little -endian order. - - /* Byte swapping macros for file header data. */ - - #define bfd_h_put_8(abfd, val, ptr) \ - bfd_put_8 (abfd, val, ptr) - #define bfd_h_put_signed_8(abfd, val, ptr) \ - bfd_put_8 (abfd, val, ptr) - #define bfd_h_get_8(abfd, ptr) \ - bfd_get_8 (abfd, ptr) - #define bfd_h_get_signed_8(abfd, ptr) \ - bfd_get_signed_8 (abfd, ptr) - - #define bfd_h_put_16(abfd, val, ptr) \ - BFD_SEND (abfd, bfd_h_putx16, (val, ptr)) - #define bfd_h_put_signed_16 \ - bfd_h_put_16 - #define bfd_h_get_16(abfd, ptr) \ - BFD_SEND (abfd, bfd_h_getx16, (ptr)) - #define bfd_h_get_signed_16(abfd, ptr) \ - BFD_SEND (abfd, bfd_h_getx_signed_16, (ptr)) - - #define bfd_h_put_32(abfd, val, ptr) \ - BFD_SEND (abfd, bfd_h_putx32, (val, ptr)) - #define bfd_h_put_signed_32 \ - bfd_h_put_32 - #define bfd_h_get_32(abfd, ptr) \ - BFD_SEND (abfd, bfd_h_getx32, (ptr)) - #define bfd_h_get_signed_32(abfd, ptr) \ - BFD_SEND (abfd, bfd_h_getx_signed_32, (ptr)) - - #define bfd_h_put_64(abfd, val, ptr) \ - BFD_SEND (abfd, bfd_h_putx64, (val, ptr)) - #define bfd_h_put_signed_64 \ - bfd_h_put_64 - #define bfd_h_get_64(abfd, ptr) \ - BFD_SEND (abfd, bfd_h_getx64, (ptr)) - #define bfd_h_get_signed_64(abfd, ptr) \ - BFD_SEND (abfd, bfd_h_getx_signed_64, (ptr)) - - /* Aliases for the above, which should eventually go away. */ - - #define H_PUT_64 bfd_h_put_64 - #define H_PUT_32 bfd_h_put_32 - #define H_PUT_16 bfd_h_put_16 - #define H_PUT_8 bfd_h_put_8 - #define H_PUT_S64 bfd_h_put_signed_64 - #define H_PUT_S32 bfd_h_put_signed_32 - #define H_PUT_S16 bfd_h_put_signed_16 - #define H_PUT_S8 bfd_h_put_signed_8 - #define H_GET_64 bfd_h_get_64 - #define H_GET_32 bfd_h_get_32 - #define H_GET_16 bfd_h_get_16 - #define H_GET_8 bfd_h_get_8 - #define H_GET_S64 bfd_h_get_signed_64 - #define H_GET_S32 bfd_h_get_signed_32 - #define H_GET_S16 bfd_h_get_signed_16 - #define H_GET_S8 bfd_h_get_signed_8 - -2.16.0.5 `bfd_log2' -................... - -*Synopsis* - unsigned int bfd_log2 (bfd_vma x); - *Description* -Return the log base 2 of the value supplied, rounded up. E.g., an X of -1025 returns 11. A X of 0 returns 0. - - -File: bfd.info, Node: File Caching, Next: Linker Functions, Prev: Internal, Up: BFD front end - -2.17 File caching -================= - -The file caching mechanism is embedded within BFD and allows the -application to open as many BFDs as it wants without regard to the -underlying operating system's file descriptor limit (often as low as 20 -open files). The module in `cache.c' maintains a least recently used -list of `BFD_CACHE_MAX_OPEN' files, and exports the name -`bfd_cache_lookup', which runs around and makes sure that the required -BFD is open. If not, then it chooses a file to close, closes it and -opens the one wanted, returning its file handle. - -2.17.0.1 `BFD_CACHE_MAX_OPEN macro' -................................... - -*Description* -The maximum number of files which the cache will keep open at one time. - #define BFD_CACHE_MAX_OPEN 10 - -2.17.0.2 `bfd_last_cache' -......................... - -*Synopsis* - extern bfd *bfd_last_cache; - *Description* -Zero, or a pointer to the topmost BFD on the chain. This is used by -the `bfd_cache_lookup' macro in `libbfd.h' to determine when it can -avoid a function call. - -2.17.0.3 `bfd_cache_lookup' -........................... - -*Description* -Check to see if the required BFD is the same as the last one looked up. -If so, then it can use the stream in the BFD with impunity, since it -can't have changed since the last lookup; otherwise, it has to perform -the complicated lookup function. - #define bfd_cache_lookup(x) \ - ((x) == bfd_last_cache ? \ - (FILE *) (bfd_last_cache->iostream): \ - bfd_cache_lookup_worker (x)) - -2.17.0.4 `bfd_cache_init' -......................... - -*Synopsis* - bfd_boolean bfd_cache_init (bfd *abfd); - *Description* -Add a newly opened BFD to the cache. - -2.17.0.5 `bfd_cache_close' -.......................... - -*Synopsis* - bfd_boolean bfd_cache_close (bfd *abfd); - *Description* -Remove the BFD ABFD from the cache. If the attached file is open, then -close it too. - - *Returns* -`FALSE' is returned if closing the file fails, `TRUE' is returned if -all is well. - -2.17.0.6 `bfd_cache_close_all' -.............................. - -*Synopsis* - bfd_boolean bfd_cache_close_all (void); - *Description* -Remove all BFDs from the cache. If the attached file is open, then -close it too. - - *Returns* -`FALSE' is returned if closing one of the file fails, `TRUE' is -returned if all is well. - -2.17.0.7 `bfd_open_file' -........................ - -*Synopsis* - FILE* bfd_open_file (bfd *abfd); - *Description* -Call the OS to open a file for ABFD. Return the `FILE *' (possibly -`NULL') that results from this operation. Set up the BFD so that -future accesses know the file is open. If the `FILE *' returned is -`NULL', then it won't have been put in the cache, so it won't have to -be removed from it. - -2.17.0.8 `bfd_cache_lookup_worker' -.................................. - -*Synopsis* - FILE *bfd_cache_lookup_worker (bfd *abfd); - *Description* -Called when the macro `bfd_cache_lookup' fails to find a quick answer. -Find a file descriptor for ABFD. If necessary, it open it. If there -are already more than `BFD_CACHE_MAX_OPEN' files open, it tries to -close one first, to avoid running out of file descriptors. It will -abort rather than returning NULL if it is unable to (re)open the ABFD. - - -File: bfd.info, Node: Linker Functions, Next: Hash Tables, Prev: File Caching, Up: BFD front end - -2.18 Linker Functions -===================== - -The linker uses three special entry points in the BFD target vector. -It is not necessary to write special routines for these entry points -when creating a new BFD back end, since generic versions are provided. -However, writing them can speed up linking and make it use -significantly less runtime memory. - - The first routine creates a hash table used by the other routines. -The second routine adds the symbols from an object file to the hash -table. The third routine takes all the object files and links them -together to create the output file. These routines are designed so -that the linker proper does not need to know anything about the symbols -in the object files that it is linking. The linker merely arranges the -sections as directed by the linker script and lets BFD handle the -details of symbols and relocs. - - The second routine and third routines are passed a pointer to a -`struct bfd_link_info' structure (defined in `bfdlink.h') which holds -information relevant to the link, including the linker hash table -(which was created by the first routine) and a set of callback -functions to the linker proper. - - The generic linker routines are in `linker.c', and use the header -file `genlink.h'. As of this writing, the only back ends which have -implemented versions of these routines are a.out (in `aoutx.h') and -ECOFF (in `ecoff.c'). The a.out routines are used as examples -throughout this section. - -* Menu: - -* Creating a Linker Hash Table:: -* Adding Symbols to the Hash Table:: -* Performing the Final Link:: - - -File: bfd.info, Node: Creating a Linker Hash Table, Next: Adding Symbols to the Hash Table, Prev: Linker Functions, Up: Linker Functions - -2.18.1 Creating a linker hash table ------------------------------------ - -The linker routines must create a hash table, which must be derived -from `struct bfd_link_hash_table' described in `bfdlink.c'. *Note Hash -Tables::, for information on how to create a derived hash table. This -entry point is called using the target vector of the linker output file. - - The `_bfd_link_hash_table_create' entry point must allocate and -initialize an instance of the desired hash table. If the back end does -not require any additional information to be stored with the entries in -the hash table, the entry point may simply create a `struct -bfd_link_hash_table'. Most likely, however, some additional -information will be needed. - - For example, with each entry in the hash table the a.out linker -keeps the index the symbol has in the final output file (this index -number is used so that when doing a relocatable link the symbol index -used in the output file can be quickly filled in when copying over a -reloc). The a.out linker code defines the required structures and -functions for a hash table derived from `struct bfd_link_hash_table'. -The a.out linker hash table is created by the function -`NAME(aout,link_hash_table_create)'; it simply allocates space for the -hash table, initializes it, and returns a pointer to it. - - When writing the linker routines for a new back end, you will -generally not know exactly which fields will be required until you have -finished. You should simply create a new hash table which defines no -additional fields, and then simply add fields as they become necessary. - - -File: bfd.info, Node: Adding Symbols to the Hash Table, Next: Performing the Final Link, Prev: Creating a Linker Hash Table, Up: Linker Functions - -2.18.2 Adding symbols to the hash table ---------------------------------------- - -The linker proper will call the `_bfd_link_add_symbols' entry point for -each object file or archive which is to be linked (typically these are -the files named on the command line, but some may also come from the -linker script). The entry point is responsible for examining the file. -For an object file, BFD must add any relevant symbol information to -the hash table. For an archive, BFD must determine which elements of -the archive should be used and adding them to the link. - - The a.out version of this entry point is -`NAME(aout,link_add_symbols)'. - -* Menu: - -* Differing file formats:: -* Adding symbols from an object file:: -* Adding symbols from an archive:: - - -File: bfd.info, Node: Differing file formats, Next: Adding symbols from an object file, Prev: Adding Symbols to the Hash Table, Up: Adding Symbols to the Hash Table - -2.18.2.1 Differing file formats -............................... - -Normally all the files involved in a link will be of the same format, -but it is also possible to link together different format object files, -and the back end must support that. The `_bfd_link_add_symbols' entry -point is called via the target vector of the file to be added. This -has an important consequence: the function may not assume that the hash -table is the type created by the corresponding -`_bfd_link_hash_table_create' vector. All the `_bfd_link_add_symbols' -function can assume about the hash table is that it is derived from -`struct bfd_link_hash_table'. - - Sometimes the `_bfd_link_add_symbols' function must store some -information in the hash table entry to be used by the `_bfd_final_link' -function. In such a case the `creator' field of the hash table must be -checked to make sure that the hash table was created by an object file -of the same format. - - The `_bfd_final_link' routine must be prepared to handle a hash -entry without any extra information added by the -`_bfd_link_add_symbols' function. A hash entry without extra -information will also occur when the linker script directs the linker -to create a symbol. Note that, regardless of how a hash table entry is -added, all the fields will be initialized to some sort of null value by -the hash table entry initialization function. - - See `ecoff_link_add_externals' for an example of how to check the -`creator' field before saving information (in this case, the ECOFF -external symbol debugging information) in a hash table entry. - - -File: bfd.info, Node: Adding symbols from an object file, Next: Adding symbols from an archive, Prev: Differing file formats, Up: Adding Symbols to the Hash Table - -2.18.2.2 Adding symbols from an object file -........................................... - -When the `_bfd_link_add_symbols' routine is passed an object file, it -must add all externally visible symbols in that object file to the hash -table. The actual work of adding the symbol to the hash table is -normally handled by the function `_bfd_generic_link_add_one_symbol'. -The `_bfd_link_add_symbols' routine is responsible for reading all the -symbols from the object file and passing the correct information to -`_bfd_generic_link_add_one_symbol'. - - The `_bfd_link_add_symbols' routine should not use -`bfd_canonicalize_symtab' to read the symbols. The point of providing -this routine is to avoid the overhead of converting the symbols into -generic `asymbol' structures. - - `_bfd_generic_link_add_one_symbol' handles the details of combining -common symbols, warning about multiple definitions, and so forth. It -takes arguments which describe the symbol to add, notably symbol flags, -a section, and an offset. The symbol flags include such things as -`BSF_WEAK' or `BSF_INDIRECT'. The section is a section in the object -file, or something like `bfd_und_section_ptr' for an undefined symbol -or `bfd_com_section_ptr' for a common symbol. - - If the `_bfd_final_link' routine is also going to need to read the -symbol information, the `_bfd_link_add_symbols' routine should save it -somewhere attached to the object file BFD. However, the information -should only be saved if the `keep_memory' field of the `info' argument -is TRUE, so that the `-no-keep-memory' linker switch is effective. - - The a.out function which adds symbols from an object file is -`aout_link_add_object_symbols', and most of the interesting work is in -`aout_link_add_symbols'. The latter saves pointers to the hash tables -entries created by `_bfd_generic_link_add_one_symbol' indexed by symbol -number, so that the `_bfd_final_link' routine does not have to call the -hash table lookup routine to locate the entry. - - -File: bfd.info, Node: Adding symbols from an archive, Prev: Adding symbols from an object file, Up: Adding Symbols to the Hash Table - -2.18.2.3 Adding symbols from an archive -....................................... - -When the `_bfd_link_add_symbols' routine is passed an archive, it must -look through the symbols defined by the archive and decide which -elements of the archive should be included in the link. For each such -element it must call the `add_archive_element' linker callback, and it -must add the symbols from the object file to the linker hash table. - - In most cases the work of looking through the symbols in the archive -should be done by the `_bfd_generic_link_add_archive_symbols' function. -This function builds a hash table from the archive symbol table and -looks through the list of undefined symbols to see which elements -should be included. `_bfd_generic_link_add_archive_symbols' is passed -a function to call to make the final decision about adding an archive -element to the link and to do the actual work of adding the symbols to -the linker hash table. - - The function passed to `_bfd_generic_link_add_archive_symbols' must -read the symbols of the archive element and decide whether the archive -element should be included in the link. If the element is to be -included, the `add_archive_element' linker callback routine must be -called with the element as an argument, and the elements symbols must -be added to the linker hash table just as though the element had itself -been passed to the `_bfd_link_add_symbols' function. - - When the a.out `_bfd_link_add_symbols' function receives an archive, -it calls `_bfd_generic_link_add_archive_symbols' passing -`aout_link_check_archive_element' as the function argument. -`aout_link_check_archive_element' calls `aout_link_check_ar_symbols'. -If the latter decides to add the element (an element is only added if -it provides a real, non-common, definition for a previously undefined -or common symbol) it calls the `add_archive_element' callback and then -`aout_link_check_archive_element' calls `aout_link_add_symbols' to -actually add the symbols to the linker hash table. - - The ECOFF back end is unusual in that it does not normally call -`_bfd_generic_link_add_archive_symbols', because ECOFF archives already -contain a hash table of symbols. The ECOFF back end searches the -archive itself to avoid the overhead of creating a new hash table. - - -File: bfd.info, Node: Performing the Final Link, Prev: Adding Symbols to the Hash Table, Up: Linker Functions - -2.18.3 Performing the final link --------------------------------- - -When all the input files have been processed, the linker calls the -`_bfd_final_link' entry point of the output BFD. This routine is -responsible for producing the final output file, which has several -aspects. It must relocate the contents of the input sections and copy -the data into the output sections. It must build an output symbol -table including any local symbols from the input files and the global -symbols from the hash table. When producing relocatable output, it must -modify the input relocs and write them into the output file. There may -also be object format dependent work to be done. - - The linker will also call the `write_object_contents' entry point -when the BFD is closed. The two entry points must work together in -order to produce the correct output file. - - The details of how this works are inevitably dependent upon the -specific object file format. The a.out `_bfd_final_link' routine is -`NAME(aout,final_link)'. - -* Menu: - -* Information provided by the linker:: -* Relocating the section contents:: -* Writing the symbol table:: - - -File: bfd.info, Node: Information provided by the linker, Next: Relocating the section contents, Prev: Performing the Final Link, Up: Performing the Final Link - -2.18.3.1 Information provided by the linker -........................................... - -Before the linker calls the `_bfd_final_link' entry point, it sets up -some data structures for the function to use. - - The `input_bfds' field of the `bfd_link_info' structure will point -to a list of all the input files included in the link. These files are -linked through the `link_next' field of the `bfd' structure. - - Each section in the output file will have a list of `link_order' -structures attached to the `link_order_head' field (the `link_order' -structure is defined in `bfdlink.h'). These structures describe how to -create the contents of the output section in terms of the contents of -various input sections, fill constants, and, eventually, other types of -information. They also describe relocs that must be created by the BFD -backend, but do not correspond to any input file; this is used to -support -Ur, which builds constructors while generating a relocatable -object file. - - -File: bfd.info, Node: Relocating the section contents, Next: Writing the symbol table, Prev: Information provided by the linker, Up: Performing the Final Link - -2.18.3.2 Relocating the section contents -........................................ - -The `_bfd_final_link' function should look through the `link_order' -structures attached to each section of the output file. Each -`link_order' structure should either be handled specially, or it should -be passed to the function `_bfd_default_link_order' which will do the -right thing (`_bfd_default_link_order' is defined in `linker.c'). - - For efficiency, a `link_order' of type `bfd_indirect_link_order' -whose associated section belongs to a BFD of the same format as the -output BFD must be handled specially. This type of `link_order' -describes part of an output section in terms of a section belonging to -one of the input files. The `_bfd_final_link' function should read the -contents of the section and any associated relocs, apply the relocs to -the section contents, and write out the modified section contents. If -performing a relocatable link, the relocs themselves must also be -modified and written out. - - The functions `_bfd_relocate_contents' and -`_bfd_final_link_relocate' provide some general support for performing -the actual relocations, notably overflow checking. Their arguments -include information about the symbol the relocation is against and a -`reloc_howto_type' argument which describes the relocation to perform. -These functions are defined in `reloc.c'. - - The a.out function which handles reading, relocating, and writing -section contents is `aout_link_input_section'. The actual relocation -is done in `aout_link_input_section_std' and -`aout_link_input_section_ext'. - - -File: bfd.info, Node: Writing the symbol table, Prev: Relocating the section contents, Up: Performing the Final Link - -2.18.3.3 Writing the symbol table -................................. - -The `_bfd_final_link' function must gather all the symbols in the input -files and write them out. It must also write out all the symbols in -the global hash table. This must be controlled by the `strip' and -`discard' fields of the `bfd_link_info' structure. - - The local symbols of the input files will not have been entered into -the linker hash table. The `_bfd_final_link' routine must consider -each input file and include the symbols in the output file. It may be -convenient to do this when looking through the `link_order' structures, -or it may be done by stepping through the `input_bfds' list. - - The `_bfd_final_link' routine must also traverse the global hash -table to gather all the externally visible symbols. It is possible -that most of the externally visible symbols may be written out when -considering the symbols of each input file, but it is still necessary -to traverse the hash table since the linker script may have defined -some symbols that are not in any of the input files. - - The `strip' field of the `bfd_link_info' structure controls which -symbols are written out. The possible values are listed in -`bfdlink.h'. If the value is `strip_some', then the `keep_hash' field -of the `bfd_link_info' structure is a hash table of symbols to keep; -each symbol should be looked up in this hash table, and only symbols -which are present should be included in the output file. - - If the `strip' field of the `bfd_link_info' structure permits local -symbols to be written out, the `discard' field is used to further -controls which local symbols are included in the output file. If the -value is `discard_l', then all local symbols which begin with a certain -prefix are discarded; this is controlled by the -`bfd_is_local_label_name' entry point. - - The a.out backend handles symbols by calling -`aout_link_write_symbols' on each input BFD and then traversing the -global hash table with the function `aout_link_write_other_symbol'. It -builds a string table while writing out the symbols, which is written -to the output file at the end of `NAME(aout,final_link)'. - -2.18.3.4 `bfd_link_split_section' -................................. - -*Synopsis* - bfd_boolean bfd_link_split_section (bfd *abfd, asection *sec); - *Description* -Return nonzero if SEC should be split during a reloceatable or final -link. - #define bfd_link_split_section(abfd, sec) \ - BFD_SEND (abfd, _bfd_link_split_section, (abfd, sec)) - -2.18.3.5 `bfd_section_already_linked' -..................................... - -*Synopsis* - void bfd_section_already_linked (bfd *abfd, asection *sec); - *Description* -Check if SEC has been already linked during a reloceatable or final -link. - #define bfd_section_already_linked(abfd, sec) \ - BFD_SEND (abfd, _section_already_linked, (abfd, sec)) - - -File: bfd.info, Node: Hash Tables, Prev: Linker Functions, Up: BFD front end - -2.19 Hash Tables -================ - -BFD provides a simple set of hash table functions. Routines are -provided to initialize a hash table, to free a hash table, to look up a -string in a hash table and optionally create an entry for it, and to -traverse a hash table. There is currently no routine to delete an -string from a hash table. - - The basic hash table does not permit any data to be stored with a -string. However, a hash table is designed to present a base class from -which other types of hash tables may be derived. These derived types -may store additional information with the string. Hash tables were -implemented in this way, rather than simply providing a data pointer in -a hash table entry, because they were designed for use by the linker -back ends. The linker may create thousands of hash table entries, and -the overhead of allocating private data and storing and following -pointers becomes noticeable. - - The basic hash table code is in `hash.c'. - -* Menu: - -* Creating and Freeing a Hash Table:: -* Looking Up or Entering a String:: -* Traversing a Hash Table:: -* Deriving a New Hash Table Type:: - - -File: bfd.info, Node: Creating and Freeing a Hash Table, Next: Looking Up or Entering a String, Prev: Hash Tables, Up: Hash Tables - -2.19.1 Creating and freeing a hash table ----------------------------------------- - -To create a hash table, create an instance of a `struct bfd_hash_table' -(defined in `bfd.h') and call `bfd_hash_table_init' (if you know -approximately how many entries you will need, the function -`bfd_hash_table_init_n', which takes a SIZE argument, may be used). -`bfd_hash_table_init' returns `FALSE' if some sort of error occurs. - - The function `bfd_hash_table_init' take as an argument a function to -use to create new entries. For a basic hash table, use the function -`bfd_hash_newfunc'. *Note Deriving a New Hash Table Type::, for why -you would want to use a different value for this argument. - - `bfd_hash_table_init' will create an objalloc which will be used to -allocate new entries. You may allocate memory on this objalloc using -`bfd_hash_allocate'. - - Use `bfd_hash_table_free' to free up all the memory that has been -allocated for a hash table. This will not free up the `struct -bfd_hash_table' itself, which you must provide. - - Use `bfd_hash_set_default_size' to set the default size of hash -table to use. - - -File: bfd.info, Node: Looking Up or Entering a String, Next: Traversing a Hash Table, Prev: Creating and Freeing a Hash Table, Up: Hash Tables - -2.19.2 Looking up or entering a string --------------------------------------- - -The function `bfd_hash_lookup' is used both to look up a string in the -hash table and to create a new entry. - - If the CREATE argument is `FALSE', `bfd_hash_lookup' will look up a -string. If the string is found, it will returns a pointer to a `struct -bfd_hash_entry'. If the string is not found in the table -`bfd_hash_lookup' will return `NULL'. You should not modify any of the -fields in the returns `struct bfd_hash_entry'. - - If the CREATE argument is `TRUE', the string will be entered into -the hash table if it is not already there. Either way a pointer to a -`struct bfd_hash_entry' will be returned, either to the existing -structure or to a newly created one. In this case, a `NULL' return -means that an error occurred. - - If the CREATE argument is `TRUE', and a new entry is created, the -COPY argument is used to decide whether to copy the string onto the -hash table objalloc or not. If COPY is passed as `FALSE', you must be -careful not to deallocate or modify the string as long as the hash table -exists. - - -File: bfd.info, Node: Traversing a Hash Table, Next: Deriving a New Hash Table Type, Prev: Looking Up or Entering a String, Up: Hash Tables - -2.19.3 Traversing a hash table ------------------------------- - -The function `bfd_hash_traverse' may be used to traverse a hash table, -calling a function on each element. The traversal is done in a random -order. - - `bfd_hash_traverse' takes as arguments a function and a generic -`void *' pointer. The function is called with a hash table entry (a -`struct bfd_hash_entry *') and the generic pointer passed to -`bfd_hash_traverse'. The function must return a `boolean' value, which -indicates whether to continue traversing the hash table. If the -function returns `FALSE', `bfd_hash_traverse' will stop the traversal -and return immediately. - - -File: bfd.info, Node: Deriving a New Hash Table Type, Prev: Traversing a Hash Table, Up: Hash Tables - -2.19.4 Deriving a new hash table type -------------------------------------- - -Many uses of hash tables want to store additional information which -each entry in the hash table. Some also find it convenient to store -additional information with the hash table itself. This may be done -using a derived hash table. - - Since C is not an object oriented language, creating a derived hash -table requires sticking together some boilerplate routines with a few -differences specific to the type of hash table you want to create. - - An example of a derived hash table is the linker hash table. The -structures for this are defined in `bfdlink.h'. The functions are in -`linker.c'. - - You may also derive a hash table from an already derived hash table. -For example, the a.out linker backend code uses a hash table derived -from the linker hash table. - -* Menu: - -* Define the Derived Structures:: -* Write the Derived Creation Routine:: -* Write Other Derived Routines:: - - -File: bfd.info, Node: Define the Derived Structures, Next: Write the Derived Creation Routine, Prev: Deriving a New Hash Table Type, Up: Deriving a New Hash Table Type - -2.19.4.1 Define the derived structures -...................................... - -You must define a structure for an entry in the hash table, and a -structure for the hash table itself. - - The first field in the structure for an entry in the hash table must -be of the type used for an entry in the hash table you are deriving -from. If you are deriving from a basic hash table this is `struct -bfd_hash_entry', which is defined in `bfd.h'. The first field in the -structure for the hash table itself must be of the type of the hash -table you are deriving from itself. If you are deriving from a basic -hash table, this is `struct bfd_hash_table'. - - For example, the linker hash table defines `struct -bfd_link_hash_entry' (in `bfdlink.h'). The first field, `root', is of -type `struct bfd_hash_entry'. Similarly, the first field in `struct -bfd_link_hash_table', `table', is of type `struct bfd_hash_table'. - - -File: bfd.info, Node: Write the Derived Creation Routine, Next: Write Other Derived Routines, Prev: Define the Derived Structures, Up: Deriving a New Hash Table Type - -2.19.4.2 Write the derived creation routine -........................................... - -You must write a routine which will create and initialize an entry in -the hash table. This routine is passed as the function argument to -`bfd_hash_table_init'. - - In order to permit other hash tables to be derived from the hash -table you are creating, this routine must be written in a standard way. - - The first argument to the creation routine is a pointer to a hash -table entry. This may be `NULL', in which case the routine should -allocate the right amount of space. Otherwise the space has already -been allocated by a hash table type derived from this one. - - After allocating space, the creation routine must call the creation -routine of the hash table type it is derived from, passing in a pointer -to the space it just allocated. This will initialize any fields used -by the base hash table. - - Finally the creation routine must initialize any local fields for -the new hash table type. - - Here is a boilerplate example of a creation routine. FUNCTION_NAME -is the name of the routine. ENTRY_TYPE is the type of an entry in the -hash table you are creating. BASE_NEWFUNC is the name of the creation -routine of the hash table type your hash table is derived from. - - struct bfd_hash_entry * - FUNCTION_NAME (entry, table, string) - struct bfd_hash_entry *entry; - struct bfd_hash_table *table; - const char *string; - { - struct ENTRY_TYPE *ret = (ENTRY_TYPE *) entry; - - /* Allocate the structure if it has not already been allocated by a - derived class. */ - if (ret == (ENTRY_TYPE *) NULL) - { - ret = ((ENTRY_TYPE *) - bfd_hash_allocate (table, sizeof (ENTRY_TYPE))); - if (ret == (ENTRY_TYPE *) NULL) - return NULL; - } - - /* Call the allocation method of the base class. */ - ret = ((ENTRY_TYPE *) - BASE_NEWFUNC ((struct bfd_hash_entry *) ret, table, string)); - - /* Initialize the local fields here. */ - - return (struct bfd_hash_entry *) ret; - } - *Description* -The creation routine for the linker hash table, which is in `linker.c', -looks just like this example. FUNCTION_NAME is -`_bfd_link_hash_newfunc'. ENTRY_TYPE is `struct bfd_link_hash_entry'. -BASE_NEWFUNC is `bfd_hash_newfunc', the creation routine for a basic -hash table. - - `_bfd_link_hash_newfunc' also initializes the local fields in a -linker hash table entry: `type', `written' and `next'. - - -File: bfd.info, Node: Write Other Derived Routines, Prev: Write the Derived Creation Routine, Up: Deriving a New Hash Table Type - -2.19.4.3 Write other derived routines -..................................... - -You will want to write other routines for your new hash table, as well. - - You will want an initialization routine which calls the -initialization routine of the hash table you are deriving from and -initializes any other local fields. For the linker hash table, this is -`_bfd_link_hash_table_init' in `linker.c'. - - You will want a lookup routine which calls the lookup routine of the -hash table you are deriving from and casts the result. The linker hash -table uses `bfd_link_hash_lookup' in `linker.c' (this actually takes an -additional argument which it uses to decide how to return the looked up -value). - - You may want a traversal routine. This should just call the -traversal routine of the hash table you are deriving from with -appropriate casts. The linker hash table uses `bfd_link_hash_traverse' -in `linker.c'. - - These routines may simply be defined as macros. For example, the -a.out backend linker hash table, which is derived from the linker hash -table, uses macros for the lookup and traversal routines. These are -`aout_link_hash_lookup' and `aout_link_hash_traverse' in aoutx.h. - - -File: bfd.info, Node: BFD back ends, Next: GNU Free Documentation License, Prev: BFD front end, Up: Top - -3 BFD back ends -*************** - -* Menu: - -* What to Put Where:: -* aout :: a.out backends -* coff :: coff backends -* elf :: elf backends -* mmo :: mmo backend - - -File: bfd.info, Node: What to Put Where, Next: aout, Prev: BFD back ends, Up: BFD back ends - - All of BFD lives in one directory. - - -File: bfd.info, Node: aout, Next: coff, Prev: What to Put Where, Up: BFD back ends - -3.1 a.out backends -================== - -*Description* -BFD supports a number of different flavours of a.out format, though the -major differences are only the sizes of the structures on disk, and the -shape of the relocation information. - - The support is split into a basic support file `aoutx.h' and other -files which derive functions from the base. One derivation file is -`aoutf1.h' (for a.out flavour 1), and adds to the basic a.out functions -support for sun3, sun4, 386 and 29k a.out files, to create a target -jump vector for a specific target. - - This information is further split out into more specific files for -each machine, including `sunos.c' for sun3 and sun4, `newsos3.c' for -the Sony NEWS, and `demo64.c' for a demonstration of a 64 bit a.out -format. - - The base file `aoutx.h' defines general mechanisms for reading and -writing records to and from disk and various other methods which BFD -requires. It is included by `aout32.c' and `aout64.c' to form the names -`aout_32_swap_exec_header_in', `aout_64_swap_exec_header_in', etc. - - As an example, this is what goes on to make the back end for a sun4, -from `aout32.c': - - #define ARCH_SIZE 32 - #include "aoutx.h" - - Which exports names: - - ... - aout_32_canonicalize_reloc - aout_32_find_nearest_line - aout_32_get_lineno - aout_32_get_reloc_upper_bound - ... - - from `sunos.c': - - #define TARGET_NAME "a.out-sunos-big" - #define VECNAME sunos_big_vec - #include "aoutf1.h" - - requires all the names from `aout32.c', and produces the jump vector - - sunos_big_vec - - The file `host-aout.c' is a special case. It is for a large set of -hosts that use "more or less standard" a.out files, and for which -cross-debugging is not interesting. It uses the standard 32-bit a.out -support routines, but determines the file offsets and addresses of the -text, data, and BSS sections, the machine architecture and machine -type, and the entry point address, in a host-dependent manner. Once -these values have been determined, generic code is used to handle the -object file. - - When porting it to run on a new system, you must supply: - - HOST_PAGE_SIZE - HOST_SEGMENT_SIZE - HOST_MACHINE_ARCH (optional) - HOST_MACHINE_MACHINE (optional) - HOST_TEXT_START_ADDR - HOST_STACK_END_ADDR - - in the file `../include/sys/h-XXX.h' (for your host). These values, -plus the structures and macros defined in `a.out.h' on your host -system, will produce a BFD target that will access ordinary a.out files -on your host. To configure a new machine to use `host-aout.c', specify: - - TDEFAULTS = -DDEFAULT_VECTOR=host_aout_big_vec - TDEPFILES= host-aout.o trad-core.o - - in the `config/XXX.mt' file, and modify `configure.in' to use the -`XXX.mt' file (by setting "`bfd_target=XXX'") when your configuration -is selected. - -3.1.1 Relocations ------------------ - -*Description* -The file `aoutx.h' provides for both the _standard_ and _extended_ -forms of a.out relocation records. - - The standard records contain only an address, a symbol index, and a -type field. The extended records (used on 29ks and sparcs) also have a -full integer for an addend. - -3.1.2 Internal entry points ---------------------------- - -*Description* -`aoutx.h' exports several routines for accessing the contents of an -a.out file, which are gathered and exported in turn by various format -specific files (eg sunos.c). - -3.1.2.1 `aout_SIZE_swap_exec_header_in' -....................................... - -*Synopsis* - void aout_SIZE_swap_exec_header_in, - (bfd *abfd, - struct external_exec *raw_bytes, - struct internal_exec *execp); - *Description* -Swap the information in an executable header RAW_BYTES taken from a raw -byte stream memory image into the internal exec header structure EXECP. - -3.1.2.2 `aout_SIZE_swap_exec_header_out' -........................................ - -*Synopsis* - void aout_SIZE_swap_exec_header_out - (bfd *abfd, - struct internal_exec *execp, - struct external_exec *raw_bytes); - *Description* -Swap the information in an internal exec header structure EXECP into -the buffer RAW_BYTES ready for writing to disk. - -3.1.2.3 `aout_SIZE_some_aout_object_p' -...................................... - -*Synopsis* - const bfd_target *aout_SIZE_some_aout_object_p - (bfd *abfd, - const bfd_target *(*callback_to_real_object_p) ()); - *Description* -Some a.out variant thinks that the file open in ABFD checking is an -a.out file. Do some more checking, and set up for access if it really -is. Call back to the calling environment's "finish up" function just -before returning, to handle any last-minute setup. - -3.1.2.4 `aout_SIZE_mkobject' -............................ - -*Synopsis* - bfd_boolean aout_SIZE_mkobject, (bfd *abfd); - *Description* -Initialize BFD ABFD for use with a.out files. - -3.1.2.5 `aout_SIZE_machine_type' -................................ - -*Synopsis* - enum machine_type aout_SIZE_machine_type - (enum bfd_architecture arch, - unsigned long machine)); - *Description* -Keep track of machine architecture and machine type for a.out's. Return -the `machine_type' for a particular architecture and machine, or -`M_UNKNOWN' if that exact architecture and machine can't be represented -in a.out format. - - If the architecture is understood, machine type 0 (default) is -always understood. - -3.1.2.6 `aout_SIZE_set_arch_mach' -................................. - -*Synopsis* - bfd_boolean aout_SIZE_set_arch_mach, - (bfd *, - enum bfd_architecture arch, - unsigned long machine)); - *Description* -Set the architecture and the machine of the BFD ABFD to the values ARCH -and MACHINE. Verify that ABFD's format can support the architecture -required. - -3.1.2.7 `aout_SIZE_new_section_hook' -.................................... - -*Synopsis* - bfd_boolean aout_SIZE_new_section_hook, - (bfd *abfd, - asection *newsect)); - *Description* -Called by the BFD in response to a `bfd_make_section' request. - - -File: bfd.info, Node: coff, Next: elf, Prev: aout, Up: BFD back ends - -3.2 coff backends -================= - -BFD supports a number of different flavours of coff format. The major -differences between formats are the sizes and alignments of fields in -structures on disk, and the occasional extra field. - - Coff in all its varieties is implemented with a few common files and -a number of implementation specific files. For example, The 88k bcs -coff format is implemented in the file `coff-m88k.c'. This file -`#include's `coff/m88k.h' which defines the external structure of the -coff format for the 88k, and `coff/internal.h' which defines the -internal structure. `coff-m88k.c' also defines the relocations used by -the 88k format *Note Relocations::. - - The Intel i960 processor version of coff is implemented in -`coff-i960.c'. This file has the same structure as `coff-m88k.c', -except that it includes `coff/i960.h' rather than `coff-m88k.h'. - -3.2.1 Porting to a new version of coff --------------------------------------- - -The recommended method is to select from the existing implementations -the version of coff which is most like the one you want to use. For -example, we'll say that i386 coff is the one you select, and that your -coff flavour is called foo. Copy `i386coff.c' to `foocoff.c', copy -`../include/coff/i386.h' to `../include/coff/foo.h', and add the lines -to `targets.c' and `Makefile.in' so that your new back end is used. -Alter the shapes of the structures in `../include/coff/foo.h' so that -they match what you need. You will probably also have to add `#ifdef's -to the code in `coff/internal.h' and `coffcode.h' if your version of -coff is too wild. - - You can verify that your new BFD backend works quite simply by -building `objdump' from the `binutils' directory, and making sure that -its version of what's going on and your host system's idea (assuming it -has the pretty standard coff dump utility, usually called `att-dump' or -just `dump') are the same. Then clean up your code, and send what -you've done to Cygnus. Then your stuff will be in the next release, and -you won't have to keep integrating it. - -3.2.2 How the coff backend works --------------------------------- - -3.2.2.1 File layout -................... - -The Coff backend is split into generic routines that are applicable to -any Coff target and routines that are specific to a particular target. -The target-specific routines are further split into ones which are -basically the same for all Coff targets except that they use the -external symbol format or use different values for certain constants. - - The generic routines are in `coffgen.c'. These routines work for -any Coff target. They use some hooks into the target specific code; -the hooks are in a `bfd_coff_backend_data' structure, one of which -exists for each target. - - The essentially similar target-specific routines are in -`coffcode.h'. This header file includes executable C code. The -various Coff targets first include the appropriate Coff header file, -make any special defines that are needed, and then include `coffcode.h'. - - Some of the Coff targets then also have additional routines in the -target source file itself. - - For example, `coff-i960.c' includes `coff/internal.h' and -`coff/i960.h'. It then defines a few constants, such as `I960', and -includes `coffcode.h'. Since the i960 has complex relocation types, -`coff-i960.c' also includes some code to manipulate the i960 relocs. -This code is not in `coffcode.h' because it would not be used by any -other target. - -3.2.2.2 Bit twiddling -..................... - -Each flavour of coff supported in BFD has its own header file -describing the external layout of the structures. There is also an -internal description of the coff layout, in `coff/internal.h'. A major -function of the coff backend is swapping the bytes and twiddling the -bits to translate the external form of the structures into the normal -internal form. This is all performed in the `bfd_swap'_thing_direction -routines. Some elements are different sizes between different versions -of coff; it is the duty of the coff version specific include file to -override the definitions of various packing routines in `coffcode.h'. -E.g., the size of line number entry in coff is sometimes 16 bits, and -sometimes 32 bits. `#define'ing `PUT_LNSZ_LNNO' and `GET_LNSZ_LNNO' -will select the correct one. No doubt, some day someone will find a -version of coff which has a varying field size not catered to at the -moment. To port BFD, that person will have to add more `#defines'. -Three of the bit twiddling routines are exported to `gdb'; -`coff_swap_aux_in', `coff_swap_sym_in' and `coff_swap_lineno_in'. `GDB' -reads the symbol table on its own, but uses BFD to fix things up. More -of the bit twiddlers are exported for `gas'; `coff_swap_aux_out', -`coff_swap_sym_out', `coff_swap_lineno_out', `coff_swap_reloc_out', -`coff_swap_filehdr_out', `coff_swap_aouthdr_out', -`coff_swap_scnhdr_out'. `Gas' currently keeps track of all the symbol -table and reloc drudgery itself, thereby saving the internal BFD -overhead, but uses BFD to swap things on the way out, making cross -ports much safer. Doing so also allows BFD (and thus the linker) to -use the same header files as `gas', which makes one avenue to disaster -disappear. - -3.2.2.3 Symbol reading -...................... - -The simple canonical form for symbols used by BFD is not rich enough to -keep all the information available in a coff symbol table. The back end -gets around this problem by keeping the original symbol table around, -"behind the scenes". - - When a symbol table is requested (through a call to -`bfd_canonicalize_symtab'), a request gets through to -`coff_get_normalized_symtab'. This reads the symbol table from the coff -file and swaps all the structures inside into the internal form. It -also fixes up all the pointers in the table (represented in the file by -offsets from the first symbol in the table) into physical pointers to -elements in the new internal table. This involves some work since the -meanings of fields change depending upon context: a field that is a -pointer to another structure in the symbol table at one moment may be -the size in bytes of a structure at the next. Another pass is made -over the table. All symbols which mark file names (`C_FILE' symbols) -are modified so that the internal string points to the value in the -auxent (the real filename) rather than the normal text associated with -the symbol (`".file"'). - - At this time the symbol names are moved around. Coff stores all -symbols less than nine characters long physically within the symbol -table; longer strings are kept at the end of the file in the string -table. This pass moves all strings into memory and replaces them with -pointers to the strings. - - The symbol table is massaged once again, this time to create the -canonical table used by the BFD application. Each symbol is inspected -in turn, and a decision made (using the `sclass' field) about the -various flags to set in the `asymbol'. *Note Symbols::. The generated -canonical table shares strings with the hidden internal symbol table. - - Any linenumbers are read from the coff file too, and attached to the -symbols which own the functions the linenumbers belong to. - -3.2.2.4 Symbol writing -...................... - -Writing a symbol to a coff file which didn't come from a coff file will -lose any debugging information. The `asymbol' structure remembers the -BFD from which the symbol was taken, and on output the back end makes -sure that the same destination target as source target is present. - - When the symbols have come from a coff file then all the debugging -information is preserved. - - Symbol tables are provided for writing to the back end in a vector -of pointers to pointers. This allows applications like the linker to -accumulate and output large symbol tables without having to do too much -byte copying. - - This function runs through the provided symbol table and patches -each symbol marked as a file place holder (`C_FILE') to point to the -next file place holder in the list. It also marks each `offset' field -in the list with the offset from the first symbol of the current symbol. - - Another function of this procedure is to turn the canonical value -form of BFD into the form used by coff. Internally, BFD expects symbol -values to be offsets from a section base; so a symbol physically at -0x120, but in a section starting at 0x100, would have the value 0x20. -Coff expects symbols to contain their final value, so symbols have -their values changed at this point to reflect their sum with their -owning section. This transformation uses the `output_section' field of -the `asymbol''s `asection' *Note Sections::. - - * `coff_mangle_symbols' - This routine runs though the provided symbol table and uses the -offsets generated by the previous pass and the pointers generated when -the symbol table was read in to create the structured hierarchy -required by coff. It changes each pointer to a symbol into the index -into the symbol table of the asymbol. - - * `coff_write_symbols' - This routine runs through the symbol table and patches up the -symbols from their internal form into the coff way, calls the bit -twiddlers, and writes out the table to the file. - -3.2.2.5 `coff_symbol_type' -.......................... - -*Description* -The hidden information for an `asymbol' is described in a -`combined_entry_type': - - - typedef struct coff_ptr_struct - { - /* Remembers the offset from the first symbol in the file for - this symbol. Generated by coff_renumber_symbols. */ - unsigned int offset; - - /* Should the value of this symbol be renumbered. Used for - XCOFF C_BSTAT symbols. Set by coff_slurp_symbol_table. */ - unsigned int fix_value : 1; - - /* Should the tag field of this symbol be renumbered. - Created by coff_pointerize_aux. */ - unsigned int fix_tag : 1; - - /* Should the endidx field of this symbol be renumbered. - Created by coff_pointerize_aux. */ - unsigned int fix_end : 1; - - /* Should the x_csect.x_scnlen field be renumbered. - Created by coff_pointerize_aux. */ - unsigned int fix_scnlen : 1; - - /* Fix up an XCOFF C_BINCL/C_EINCL symbol. The value is the - index into the line number entries. Set by coff_slurp_symbol_table. */ - unsigned int fix_line : 1; - - /* The container for the symbol structure as read and translated - from the file. */ - union - { - union internal_auxent auxent; - struct internal_syment syment; - } u; - } combined_entry_type; - - - /* Each canonical asymbol really looks like this: */ - - typedef struct coff_symbol_struct - { - /* The actual symbol which the rest of BFD works with */ - asymbol symbol; - - /* A pointer to the hidden information for this symbol */ - combined_entry_type *native; - - /* A pointer to the linenumber information for this symbol */ - struct lineno_cache_entry *lineno; - - /* Have the line numbers been relocated yet ? */ - bfd_boolean done_lineno; - } coff_symbol_type; - -3.2.2.6 `bfd_coff_backend_data' -............................... - - /* COFF symbol classifications. */ - - enum coff_symbol_classification - { - /* Global symbol. */ - COFF_SYMBOL_GLOBAL, - /* Common symbol. */ - COFF_SYMBOL_COMMON, - /* Undefined symbol. */ - COFF_SYMBOL_UNDEFINED, - /* Local symbol. */ - COFF_SYMBOL_LOCAL, - /* PE section symbol. */ - COFF_SYMBOL_PE_SECTION - }; -Special entry points for gdb to swap in coff symbol table parts: - typedef struct - { - void (*_bfd_coff_swap_aux_in) - PARAMS ((bfd *, PTR, int, int, int, int, PTR)); - - void (*_bfd_coff_swap_sym_in) - PARAMS ((bfd *, PTR, PTR)); - - void (*_bfd_coff_swap_lineno_in) - PARAMS ((bfd *, PTR, PTR)); - - unsigned int (*_bfd_coff_swap_aux_out) - PARAMS ((bfd *, PTR, int, int, int, int, PTR)); - - unsigned int (*_bfd_coff_swap_sym_out) - PARAMS ((bfd *, PTR, PTR)); - - unsigned int (*_bfd_coff_swap_lineno_out) - PARAMS ((bfd *, PTR, PTR)); - - unsigned int (*_bfd_coff_swap_reloc_out) - PARAMS ((bfd *, PTR, PTR)); - - unsigned int (*_bfd_coff_swap_filehdr_out) - PARAMS ((bfd *, PTR, PTR)); - - unsigned int (*_bfd_coff_swap_aouthdr_out) - PARAMS ((bfd *, PTR, PTR)); - - unsigned int (*_bfd_coff_swap_scnhdr_out) - PARAMS ((bfd *, PTR, PTR)); - - unsigned int _bfd_filhsz; - unsigned int _bfd_aoutsz; - unsigned int _bfd_scnhsz; - unsigned int _bfd_symesz; - unsigned int _bfd_auxesz; - unsigned int _bfd_relsz; - unsigned int _bfd_linesz; - unsigned int _bfd_filnmlen; - bfd_boolean _bfd_coff_long_filenames; - bfd_boolean _bfd_coff_long_section_names; - unsigned int _bfd_coff_default_section_alignment_power; - bfd_boolean _bfd_coff_force_symnames_in_strings; - unsigned int _bfd_coff_debug_string_prefix_length; - - void (*_bfd_coff_swap_filehdr_in) - PARAMS ((bfd *, PTR, PTR)); - - void (*_bfd_coff_swap_aouthdr_in) - PARAMS ((bfd *, PTR, PTR)); - - void (*_bfd_coff_swap_scnhdr_in) - PARAMS ((bfd *, PTR, PTR)); - - void (*_bfd_coff_swap_reloc_in) - PARAMS ((bfd *abfd, PTR, PTR)); - - bfd_boolean (*_bfd_coff_bad_format_hook) - PARAMS ((bfd *, PTR)); - - bfd_boolean (*_bfd_coff_set_arch_mach_hook) - PARAMS ((bfd *, PTR)); - - PTR (*_bfd_coff_mkobject_hook) - PARAMS ((bfd *, PTR, PTR)); - - bfd_boolean (*_bfd_styp_to_sec_flags_hook) - PARAMS ((bfd *, PTR, const char *, asection *, flagword *)); - - void (*_bfd_set_alignment_hook) - PARAMS ((bfd *, asection *, PTR)); - - bfd_boolean (*_bfd_coff_slurp_symbol_table) - PARAMS ((bfd *)); - - bfd_boolean (*_bfd_coff_symname_in_debug) - PARAMS ((bfd *, struct internal_syment *)); - - bfd_boolean (*_bfd_coff_pointerize_aux_hook) - PARAMS ((bfd *, combined_entry_type *, combined_entry_type *, - unsigned int, combined_entry_type *)); - - bfd_boolean (*_bfd_coff_print_aux) - PARAMS ((bfd *, FILE *, combined_entry_type *, combined_entry_type *, - combined_entry_type *, unsigned int)); - - void (*_bfd_coff_reloc16_extra_cases) - PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_order *, arelent *, - bfd_byte *, unsigned int *, unsigned int *)); - - int (*_bfd_coff_reloc16_estimate) - PARAMS ((bfd *, asection *, arelent *, unsigned int, - struct bfd_link_info *)); - - enum coff_symbol_classification (*_bfd_coff_classify_symbol) - PARAMS ((bfd *, struct internal_syment *)); - - bfd_boolean (*_bfd_coff_compute_section_file_positions) - PARAMS ((bfd *)); - - bfd_boolean (*_bfd_coff_start_final_link) - PARAMS ((bfd *, struct bfd_link_info *)); - - bfd_boolean (*_bfd_coff_relocate_section) - PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, - struct internal_reloc *, struct internal_syment *, asection **)); - - reloc_howto_type *(*_bfd_coff_rtype_to_howto) - PARAMS ((bfd *, asection *, struct internal_reloc *, - struct coff_link_hash_entry *, struct internal_syment *, - bfd_vma *)); - - bfd_boolean (*_bfd_coff_adjust_symndx) - PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, - struct internal_reloc *, bfd_boolean *)); - - bfd_boolean (*_bfd_coff_link_add_one_symbol) - PARAMS ((struct bfd_link_info *, bfd *, const char *, flagword, - asection *, bfd_vma, const char *, bfd_boolean, bfd_boolean, - struct bfd_link_hash_entry **)); - - bfd_boolean (*_bfd_coff_link_output_has_begun) - PARAMS ((bfd *, struct coff_final_link_info *)); - - bfd_boolean (*_bfd_coff_final_link_postscript) - PARAMS ((bfd *, struct coff_final_link_info *)); - - } bfd_coff_backend_data; - - #define coff_backend_info(abfd) \ - ((bfd_coff_backend_data *) (abfd)->xvec->backend_data) - - #define bfd_coff_swap_aux_in(a,e,t,c,ind,num,i) \ - ((coff_backend_info (a)->_bfd_coff_swap_aux_in) (a,e,t,c,ind,num,i)) - - #define bfd_coff_swap_sym_in(a,e,i) \ - ((coff_backend_info (a)->_bfd_coff_swap_sym_in) (a,e,i)) - - #define bfd_coff_swap_lineno_in(a,e,i) \ - ((coff_backend_info ( a)->_bfd_coff_swap_lineno_in) (a,e,i)) - - #define bfd_coff_swap_reloc_out(abfd, i, o) \ - ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_out) (abfd, i, o)) - - #define bfd_coff_swap_lineno_out(abfd, i, o) \ - ((coff_backend_info (abfd)->_bfd_coff_swap_lineno_out) (abfd, i, o)) - - #define bfd_coff_swap_aux_out(a,i,t,c,ind,num,o) \ - ((coff_backend_info (a)->_bfd_coff_swap_aux_out) (a,i,t,c,ind,num,o)) - - #define bfd_coff_swap_sym_out(abfd, i,o) \ - ((coff_backend_info (abfd)->_bfd_coff_swap_sym_out) (abfd, i, o)) - - #define bfd_coff_swap_scnhdr_out(abfd, i,o) \ - ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_out) (abfd, i, o)) - - #define bfd_coff_swap_filehdr_out(abfd, i,o) \ - ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_out) (abfd, i, o)) - - #define bfd_coff_swap_aouthdr_out(abfd, i,o) \ - ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_out) (abfd, i, o)) - - #define bfd_coff_filhsz(abfd) (coff_backend_info (abfd)->_bfd_filhsz) - #define bfd_coff_aoutsz(abfd) (coff_backend_info (abfd)->_bfd_aoutsz) - #define bfd_coff_scnhsz(abfd) (coff_backend_info (abfd)->_bfd_scnhsz) - #define bfd_coff_symesz(abfd) (coff_backend_info (abfd)->_bfd_symesz) - #define bfd_coff_auxesz(abfd) (coff_backend_info (abfd)->_bfd_auxesz) - #define bfd_coff_relsz(abfd) (coff_backend_info (abfd)->_bfd_relsz) - #define bfd_coff_linesz(abfd) (coff_backend_info (abfd)->_bfd_linesz) - #define bfd_coff_filnmlen(abfd) (coff_backend_info (abfd)->_bfd_filnmlen) - #define bfd_coff_long_filenames(abfd) \ - (coff_backend_info (abfd)->_bfd_coff_long_filenames) - #define bfd_coff_long_section_names(abfd) \ - (coff_backend_info (abfd)->_bfd_coff_long_section_names) - #define bfd_coff_default_section_alignment_power(abfd) \ - (coff_backend_info (abfd)->_bfd_coff_default_section_alignment_power) - #define bfd_coff_swap_filehdr_in(abfd, i,o) \ - ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_in) (abfd, i, o)) - - #define bfd_coff_swap_aouthdr_in(abfd, i,o) \ - ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_in) (abfd, i, o)) - - #define bfd_coff_swap_scnhdr_in(abfd, i,o) \ - ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_in) (abfd, i, o)) - - #define bfd_coff_swap_reloc_in(abfd, i, o) \ - ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_in) (abfd, i, o)) - - #define bfd_coff_bad_format_hook(abfd, filehdr) \ - ((coff_backend_info (abfd)->_bfd_coff_bad_format_hook) (abfd, filehdr)) - - #define bfd_coff_set_arch_mach_hook(abfd, filehdr)\ - ((coff_backend_info (abfd)->_bfd_coff_set_arch_mach_hook) (abfd, filehdr)) - #define bfd_coff_mkobject_hook(abfd, filehdr, aouthdr)\ - ((coff_backend_info (abfd)->_bfd_coff_mkobject_hook)\ - (abfd, filehdr, aouthdr)) - - #define bfd_coff_styp_to_sec_flags_hook(abfd, scnhdr, name, section, flags_ptr)\ - ((coff_backend_info (abfd)->_bfd_styp_to_sec_flags_hook)\ - (abfd, scnhdr, name, section, flags_ptr)) - - #define bfd_coff_set_alignment_hook(abfd, sec, scnhdr)\ - ((coff_backend_info (abfd)->_bfd_set_alignment_hook) (abfd, sec, scnhdr)) - - #define bfd_coff_slurp_symbol_table(abfd)\ - ((coff_backend_info (abfd)->_bfd_coff_slurp_symbol_table) (abfd)) - - #define bfd_coff_symname_in_debug(abfd, sym)\ - ((coff_backend_info (abfd)->_bfd_coff_symname_in_debug) (abfd, sym)) - - #define bfd_coff_force_symnames_in_strings(abfd)\ - (coff_backend_info (abfd)->_bfd_coff_force_symnames_in_strings) - - #define bfd_coff_debug_string_prefix_length(abfd)\ - (coff_backend_info (abfd)->_bfd_coff_debug_string_prefix_length) - - #define bfd_coff_print_aux(abfd, file, base, symbol, aux, indaux)\ - ((coff_backend_info (abfd)->_bfd_coff_print_aux)\ - (abfd, file, base, symbol, aux, indaux)) - - #define bfd_coff_reloc16_extra_cases(abfd, link_info, link_order,\ - reloc, data, src_ptr, dst_ptr)\ - ((coff_backend_info (abfd)->_bfd_coff_reloc16_extra_cases)\ - (abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr)) - - #define bfd_coff_reloc16_estimate(abfd, section, reloc, shrink, link_info)\ - ((coff_backend_info (abfd)->_bfd_coff_reloc16_estimate)\ - (abfd, section, reloc, shrink, link_info)) - - #define bfd_coff_classify_symbol(abfd, sym)\ - ((coff_backend_info (abfd)->_bfd_coff_classify_symbol)\ - (abfd, sym)) - - #define bfd_coff_compute_section_file_positions(abfd)\ - ((coff_backend_info (abfd)->_bfd_coff_compute_section_file_positions)\ - (abfd)) - - #define bfd_coff_start_final_link(obfd, info)\ - ((coff_backend_info (obfd)->_bfd_coff_start_final_link)\ - (obfd, info)) - #define bfd_coff_relocate_section(obfd,info,ibfd,o,con,rel,isyms,secs)\ - ((coff_backend_info (ibfd)->_bfd_coff_relocate_section)\ - (obfd, info, ibfd, o, con, rel, isyms, secs)) - #define bfd_coff_rtype_to_howto(abfd, sec, rel, h, sym, addendp)\ - ((coff_backend_info (abfd)->_bfd_coff_rtype_to_howto)\ - (abfd, sec, rel, h, sym, addendp)) - #define bfd_coff_adjust_symndx(obfd, info, ibfd, sec, rel, adjustedp)\ - ((coff_backend_info (abfd)->_bfd_coff_adjust_symndx)\ - (obfd, info, ibfd, sec, rel, adjustedp)) - #define bfd_coff_link_add_one_symbol(info, abfd, name, flags, section,\ - value, string, cp, coll, hashp)\ - ((coff_backend_info (abfd)->_bfd_coff_link_add_one_symbol)\ - (info, abfd, name, flags, section, value, string, cp, coll, hashp)) - - #define bfd_coff_link_output_has_begun(a,p) \ - ((coff_backend_info (a)->_bfd_coff_link_output_has_begun) (a,p)) - #define bfd_coff_final_link_postscript(a,p) \ - ((coff_backend_info (a)->_bfd_coff_final_link_postscript) (a,p)) - -3.2.2.7 Writing relocations -........................... - -To write relocations, the back end steps though the canonical -relocation table and create an `internal_reloc'. The symbol index to -use is removed from the `offset' field in the symbol table supplied. -The address comes directly from the sum of the section base address and -the relocation offset; the type is dug directly from the howto field. -Then the `internal_reloc' is swapped into the shape of an -`external_reloc' and written out to disk. - -3.2.2.8 Reading linenumbers -........................... - -Creating the linenumber table is done by reading in the entire coff -linenumber table, and creating another table for internal use. - - A coff linenumber table is structured so that each function is -marked as having a line number of 0. Each line within the function is -an offset from the first line in the function. The base of the line -number information for the table is stored in the symbol associated -with the function. - - Note: The PE format uses line number 0 for a flag indicating a new -source file. - - The information is copied from the external to the internal table, -and each symbol which marks a function is marked by pointing its... - - How does this work ? - -3.2.2.9 Reading relocations -........................... - -Coff relocations are easily transformed into the internal BFD form -(`arelent'). - - Reading a coff relocation table is done in the following stages: - - * Read the entire coff relocation table into memory. - - * Process each relocation in turn; first swap it from the external - to the internal form. - - * Turn the symbol referenced in the relocation's symbol index into a - pointer into the canonical symbol table. This table is the same - as the one returned by a call to `bfd_canonicalize_symtab'. The - back end will call that routine and save the result if a - canonicalization hasn't been done. - - * The reloc index is turned into a pointer to a howto structure, in - a back end specific way. For instance, the 386 and 960 use the - `r_type' to directly produce an index into a howto table vector; - the 88k subtracts a number from the `r_type' field and creates an - addend field. - - -File: bfd.info, Node: elf, Next: mmo, Prev: coff, Up: BFD back ends - -3.3 -=== - -ELF backends - - BFD support for ELF formats is being worked on. Currently, the best -supported back ends are for sparc and i386 (running svr4 or Solaris 2). - - Documentation of the internals of the support code still needs to be -written. The code is changing quickly enough that we haven't bothered -yet. - -3.3.0.1 `bfd_elf_find_section' -.............................. - -*Synopsis* - struct elf_internal_shdr *bfd_elf_find_section (bfd *abfd, char *name); - *Description* -Helper functions for GDB to locate the string tables. Since BFD hides -string tables from callers, GDB needs to use an internal hook to find -them. Sun's .stabstr, in particular, isn't even pointed to by the -.stab section, so ordinary mechanisms wouldn't work to find it, even if -we had some. - - -File: bfd.info, Node: mmo, Prev: elf, Up: BFD back ends - -3.4 mmo backend -=============== - -The mmo object format is used exclusively together with Professor -Donald E. Knuth's educational 64-bit processor MMIX. The simulator -`mmix' which is available at -`http://www-cs-faculty.stanford.edu/~knuth/programs/mmix.tar.gz' -understands this format. That package also includes a combined -assembler and linker called `mmixal'. The mmo format has no advantages -feature-wise compared to e.g. ELF. It is a simple non-relocatable -object format with no support for archives or debugging information, -except for symbol value information and line numbers (which is not yet -implemented in BFD). See -`http://www-cs-faculty.stanford.edu/~knuth/mmix.html' for more -information about MMIX. The ELF format is used for intermediate object -files in the BFD implementation. - -* Menu: - -* File layout:: -* Symbol-table:: -* mmo section mapping:: - - -File: bfd.info, Node: File layout, Next: Symbol-table, Prev: mmo, Up: mmo - -3.4.1 File layout ------------------ - -The mmo file contents is not partitioned into named sections as with -e.g. ELF. Memory areas is formed by specifying the location of the -data that follows. Only the memory area `0x0000...00' to `0x01ff...ff' -is executable, so it is used for code (and constants) and the area -`0x2000...00' to `0x20ff...ff' is used for writable data. *Note mmo -section mapping::. - - There is provision for specifying "special data" of 65536 different -types. We use type 80 (decimal), arbitrarily chosen the same as the -ELF `e_machine' number for MMIX, filling it with section information -normally found in ELF objects. *Note mmo section mapping::. - - Contents is entered as 32-bit words, xor:ed over previous contents, -always zero-initialized. A word that starts with the byte `0x98' forms -a command called a `lopcode', where the next byte distinguished between -the thirteen lopcodes. The two remaining bytes, called the `Y' and `Z' -fields, or the `YZ' field (a 16-bit big-endian number), are used for -various purposes different for each lopcode. As documented in -`http://www-cs-faculty.stanford.edu/~knuth/mmixal-intro.ps.gz', the -lopcodes are: - -`lop_quote' - 0x98000001. The next word is contents, regardless of whether it - starts with 0x98 or not. - -`lop_loc' - 0x9801YYZZ, where `Z' is 1 or 2. This is a location directive, - setting the location for the next data to the next 32-bit word - (for Z = 1) or 64-bit word (for Z = 2), plus Y * 2^56. Normally - `Y' is 0 for the text segment and 2 for the data segment. - -`lop_skip' - 0x9802YYZZ. Increase the current location by `YZ' bytes. - -`lop_fixo' - 0x9803YYZZ, where `Z' is 1 or 2. Store the current location as 64 - bits into the location pointed to by the next 32-bit (Z = 1) or - 64-bit (Z = 2) word, plus Y * 2^56. - -`lop_fixr' - 0x9804YYZZ. `YZ' is stored into the current location plus 2 - 4 * - YZ. - -`lop_fixrx' - 0x980500ZZ. `Z' is 16 or 24. A value `L' derived from the - following 32-bit word are used in a manner similar to `YZ' in - lop_fixr: it is xor:ed into the current location minus 4 * L. The - first byte of the word is 0 or 1. If it is 1, then L = (LOWEST 24 - BITS OF WORD) - 2^Z, if 0, then L = (LOWEST 24 BITS OF WORD). - -`lop_file' - 0x9806YYZZ. `Y' is the file number, `Z' is count of 32-bit words. - Set the file number to `Y' and the line counter to 0. The next Z - * 4 bytes contain the file name, padded with zeros if the count is - not a multiple of four. The same `Y' may occur multiple times, - but `Z' must be 0 for all but the first occurrence. - -`lop_line' - 0x9807YYZZ. `YZ' is the line number. Together with lop_file, it - forms the source location for the next 32-bit word. Note that for - each non-lopcode 32-bit word, line numbers are assumed incremented - by one. - -`lop_spec' - 0x9808YYZZ. `YZ' is the type number. Data until the next lopcode - other than lop_quote forms special data of type `YZ'. *Note mmo - section mapping::. - - Other types than 80, (or type 80 with a content that does not - parse) is stored in sections named `.MMIX.spec_data.N' where N is - the `YZ'-type. The flags for such a sections say not to allocate - or load the data. The vma is 0. Contents of multiple occurrences - of special data N is concatenated to the data of the previous - lop_spec Ns. The location in data or code at which the lop_spec - occurred is lost. - -`lop_pre' - 0x980901ZZ. The first lopcode in a file. The `Z' field forms the - length of header information in 32-bit words, where the first word - tells the time in seconds since `00:00:00 GMT Jan 1 1970'. - -`lop_post' - 0x980a00ZZ. Z > 32. This lopcode follows after all - content-generating lopcodes in a program. The `Z' field denotes - the value of `rG' at the beginning of the program. The following - 256 - Z big-endian 64-bit words are loaded into global registers - `$G' ... `$255'. - -`lop_stab' - 0x980b0000. The next-to-last lopcode in a program. Must follow - immediately after the lop_post lopcode and its data. After this - lopcode follows all symbols in a compressed format (*note - Symbol-table::). - -`lop_end' - 0x980cYYZZ. The last lopcode in a program. It must follow the - lop_stab lopcode and its data. The `YZ' field contains the number - of 32-bit words of symbol table information after the preceding - lop_stab lopcode. - - Note that the lopcode "fixups"; `lop_fixr', `lop_fixrx' and -`lop_fixo' are not generated by BFD, but are handled. They are -generated by `mmixal'. - - This trivial one-label, one-instruction file: - - :Main TRAP 1,2,3 - - can be represented this way in mmo: - - 0x98090101 - lop_pre, one 32-bit word with timestamp. - <timestamp> - 0x98010002 - lop_loc, text segment, using a 64-bit address. - Note that mmixal does not emit this for the file above. - 0x00000000 - Address, high 32 bits. - 0x00000000 - Address, low 32 bits. - 0x98060002 - lop_file, 2 32-bit words for file-name. - 0x74657374 - "test" - 0x2e730000 - ".s\0\0" - 0x98070001 - lop_line, line 1. - 0x00010203 - TRAP 1,2,3 - 0x980a00ff - lop_post, setting $255 to 0. - 0x00000000 - 0x00000000 - 0x980b0000 - lop_stab for ":Main" = 0, serial 1. - 0x203a4040 *Note Symbol-table::. - 0x10404020 - 0x4d206120 - 0x69016e00 - 0x81000000 - 0x980c0005 - lop_end; symbol table contained five 32-bit words. - - -File: bfd.info, Node: Symbol-table, Next: mmo section mapping, Prev: File layout, Up: mmo - -3.4.2 Symbol table format -------------------------- - -From mmixal.w (or really, the generated mmixal.tex) in -`http://www-cs-faculty.stanford.edu/~knuth/programs/mmix.tar.gz'): -"Symbols are stored and retrieved by means of a `ternary search trie', -following ideas of Bentley and Sedgewick. (See ACM-SIAM Symp. on -Discrete Algorithms `8' (1997), 360-369; R.Sedgewick, `Algorithms in C' -(Reading, Mass. Addison-Wesley, 1998), `15.4'.) Each trie node stores -a character, and there are branches to subtries for the cases where a -given character is less than, equal to, or greater than the character -in the trie. There also is a pointer to a symbol table entry if a -symbol ends at the current node." - - So it's a tree encoded as a stream of bytes. The stream of bytes -acts on a single virtual global symbol, adding and removing characters -and signalling complete symbol points. Here, we read the stream and -create symbols at the completion points. - - First, there's a control byte `m'. If any of the listed bits in `m' -is nonzero, we execute what stands at the right, in the listed order: - - (MMO3_LEFT) - 0x40 - Traverse left trie. - (Read a new command byte and recurse.) - - (MMO3_SYMBITS) - 0x2f - Read the next byte as a character and store it in the - current character position; increment character position. - Test the bits of `m': - - (MMO3_WCHAR) - 0x80 - The character is 16-bit (so read another byte, - merge into current character. - - (MMO3_TYPEBITS) - 0xf - We have a complete symbol; parse the type, value - and serial number and do what should be done - with a symbol. The type and length information - is in j = (m & 0xf). - - (MMO3_REGQUAL_BITS) - j == 0xf: A register variable. The following - byte tells which register. - j <= 8: An absolute symbol. Read j bytes as the - big-endian number the symbol equals. - A j = 2 with two zero bytes denotes an - unknown symbol. - j > 8: As with j <= 8, but add (0x20 << 56) - to the value in the following j - 8 - bytes. - - Then comes the serial number, as a variant of - uleb128, but better named ubeb128: - Read bytes and shift the previous value left 7 - (multiply by 128). Add in the new byte, repeat - until a byte has bit 7 set. The serial number - is the computed value minus 128. - - (MMO3_MIDDLE) - 0x20 - Traverse middle trie. (Read a new command byte - and recurse.) Decrement character position. - - (MMO3_RIGHT) - 0x10 - Traverse right trie. (Read a new command byte and - recurse.) - - Let's look again at the `lop_stab' for the trivial file (*note File -layout::). - - 0x980b0000 - lop_stab for ":Main" = 0, serial 1. - 0x203a4040 - 0x10404020 - 0x4d206120 - 0x69016e00 - 0x81000000 - - This forms the trivial trie (note that the path between ":" and "M" -is redundant): - - 203a ":" - 40 / - 40 / - 10 \ - 40 / - 40 / - 204d "M" - 2061 "a" - 2069 "i" - 016e "n" is the last character in a full symbol, and - with a value represented in one byte. - 00 The value is 0. - 81 The serial number is 1. - - -File: bfd.info, Node: mmo section mapping, Prev: Symbol-table, Up: mmo - -3.4.3 mmo section mapping -------------------------- - -The implementation in BFD uses special data type 80 (decimal) to -encapsulate and describe named sections, containing e.g. debug -information. If needed, any datum in the encapsulation will be quoted -using lop_quote. First comes a 32-bit word holding the number of -32-bit words containing the zero-terminated zero-padded segment name. -After the name there's a 32-bit word holding flags describing the -section type. Then comes a 64-bit big-endian word with the section -length (in bytes), then another with the section start address. -Depending on the type of section, the contents might follow, -zero-padded to 32-bit boundary. For a loadable section (such as data -or code), the contents might follow at some later point, not -necessarily immediately, as a lop_loc with the same start address as in -the section description, followed by the contents. This in effect -forms a descriptor that must be emitted before the actual contents. -Sections described this way must not overlap. - - For areas that don't have such descriptors, synthetic sections are -formed by BFD. Consecutive contents in the two memory areas -`0x0000...00' to `0x01ff...ff' and `0x2000...00' to `0x20ff...ff' are -entered in sections named `.text' and `.data' respectively. If an area -is not otherwise described, but would together with a neighboring lower -area be less than `0x40000000' bytes long, it is joined with the lower -area and the gap is zero-filled. For other cases, a new section is -formed, named `.MMIX.sec.N'. Here, N is a number, a running count -through the mmo file, starting at 0. - - A loadable section specified as: - - .section secname,"ax" - TETRA 1,2,3,4,-1,-2009 - BYTE 80 - - and linked to address `0x4', is represented by the sequence: - - 0x98080050 - lop_spec 80 - 0x00000002 - two 32-bit words for the section name - 0x7365636e - "secn" - 0x616d6500 - "ame\0" - 0x00000033 - flags CODE, READONLY, LOAD, ALLOC - 0x00000000 - high 32 bits of section length - 0x0000001c - section length is 28 bytes; 6 * 4 + 1 + alignment to 32 bits - 0x00000000 - high 32 bits of section address - 0x00000004 - section address is 4 - 0x98010002 - 64 bits with address of following data - 0x00000000 - high 32 bits of address - 0x00000004 - low 32 bits: data starts at address 4 - 0x00000001 - 1 - 0x00000002 - 2 - 0x00000003 - 3 - 0x00000004 - 4 - 0xffffffff - -1 - 0xfffff827 - -2009 - 0x50000000 - 80 as a byte, padded with zeros. - - Note that the lop_spec wrapping does not include the section -contents. Compare this to a non-loaded section specified as: - - .section thirdsec - TETRA 200001,100002 - BYTE 38,40 - - This, when linked to address `0x200000000000001c', is represented by: - - 0x98080050 - lop_spec 80 - 0x00000002 - two 32-bit words for the section name - 0x7365636e - "thir" - 0x616d6500 - "dsec" - 0x00000010 - flag READONLY - 0x00000000 - high 32 bits of section length - 0x0000000c - section length is 12 bytes; 2 * 4 + 2 + alignment to 32 bits - 0x20000000 - high 32 bits of address - 0x0000001c - low 32 bits of address 0x200000000000001c - 0x00030d41 - 200001 - 0x000186a2 - 100002 - 0x26280000 - 38, 40 as bytes, padded with zeros - - For the latter example, the section contents must not be loaded in -memory, and is therefore specified as part of the special data. The -address is usually unimportant but might provide information for e.g. -the DWARF 2 debugging format. - - -File: bfd.info, Node: GNU Free Documentation License, Next: Index, Prev: BFD back ends, Up: Top - -Appendix A GNU Free Documentation License -***************************************** - - Version 1.1, March 2000 - - Copyright (C) 2000, 2003 Free Software Foundation, Inc. - 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - - Everyone is permitted to copy and distribute verbatim copies - of this license document, but changing it is not allowed. - - - 0. PREAMBLE - - The purpose of this License is to make a manual, textbook, or other - written document "free" in the sense of freedom: to assure everyone - the effective freedom to copy and redistribute it, with or without - modifying it, either commercially or noncommercially. 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In addition, you must do these - things in the Modified Version: - - A. Use in the Title Page (and on the covers, if any) a title - distinct from that of the Document, and from those of previous - versions (which should, if there were any, be listed in the - History section of the Document). You may use the same title - as a previous version if the original publisher of that version - gives permission. - B. List on the Title Page, as authors, one or more persons or - entities responsible for authorship of the modifications in the - Modified Version, together with at least five of the principal - authors of the Document (all of its principal authors, if it - has less than five). - C. State on the Title page the name of the publisher of the - Modified Version, as the publisher. - D. Preserve all the copyright notices of the Document. - E. Add an appropriate copyright notice for your modifications - adjacent to the other copyright notices. - F. Include, immediately after the copyright notices, a license - notice giving the public permission to use the Modified Version - under the terms of this License, in the form shown in the - Addendum below. - G. Preserve in that license notice the full lists of Invariant - Sections and required Cover Texts given in the Document's - license notice. - H. Include an unaltered copy of this License. - I. Preserve the section entitled "History", and its title, and add - to it an item stating at least the title, year, new authors, and - publisher of the Modified Version as given on the Title Page. - If there is no section entitled "History" in the Document, - create one stating the title, year, authors, and publisher of - the Document as given on its Title Page, then add an item - describing the Modified Version as stated in the previous - sentence. - J. Preserve the network location, if any, given in the Document for - public access to a Transparent copy of the Document, and - likewise the network locations given in the Document for - previous versions it was based on. These may be placed in the - "History" section. You may omit a network location for a work - that was published at least four years before the Document - itself, or if the original publisher of the version it refers - to gives permission. - K. In any section entitled "Acknowledgements" or "Dedications", - preserve the section's title, and preserve in the section all the - substance and tone of each of the contributor acknowledgements - and/or dedications given therein. - L. Preserve all the Invariant Sections of the Document, - unaltered in their text and in their titles. Section numbers - or the equivalent are not considered part of the section titles. - M. Delete any section entitled "Endorsements." Such a section - may not be included in the Modified Version. - N. Do not retitle any existing section as "Endorsements" or to - conflict in title with any Invariant Section. - - If the Modified Version includes new front-matter sections or - appendices that qualify as Secondary Sections and contain no - material copied from the Document, you may at your option - designate some or all of these sections as invariant. To do this, - add their titles to the list of Invariant Sections in the Modified - Version's license notice. These titles must be distinct from any - other section titles. - - You may add a section entitled "Endorsements", provided it contains - nothing but endorsements of your Modified Version by various - parties-for example, statements of peer review or that the text has - been approved by an organization as the authoritative definition - of a standard. - - You may add a passage of up to five words as a Front-Cover Text, - and a passage of up to 25 words as a Back-Cover Text, to the end - of the list of Cover Texts in the Modified Version. Only one - passage of Front-Cover Text and one of Back-Cover Text may be - added by (or through arrangements made by) any one entity. If the - Document already includes a cover text for the same cover, - previously added by you or by arrangement made by the same entity - you are acting on behalf of, you may not add another; but you may - replace the old one, on explicit permission from the previous - publisher that added the old one. - - The author(s) and publisher(s) of the Document do not by this - License give permission to use their names for publicity for or to - assert or imply endorsement of any Modified Version. - - 5. COMBINING DOCUMENTS - - You may combine the Document with other documents released under - this License, under the terms defined in section 4 above for - modified versions, provided that you include in the combination - all of the Invariant Sections of all of the original documents, - unmodified, and list them all as Invariant Sections of your - combined work in its license notice. - - The combined work need only contain one copy of this License, and - multiple identical Invariant Sections may be replaced with a single - copy. If there are multiple Invariant Sections with the same name - but different contents, make the title of each such section unique - by adding at the end of it, in parentheses, the name of the - original author or publisher of that section if known, or else a - unique number. Make the same adjustment to the section titles in - the list of Invariant Sections in the license notice of the - combined work. - - In the combination, you must combine any sections entitled - "History" in the various original documents, forming one section - entitled "History"; likewise combine any sections entitled - "Acknowledgements", and any sections entitled "Dedications." You - must delete all sections entitled "Endorsements." - - 6. COLLECTIONS OF DOCUMENTS - - You may make a collection consisting of the Document and other - documents released under this License, and replace the individual - copies of this License in the various documents with a single copy - that is included in the collection, provided that you follow the - rules of this License for verbatim copying of each of the - documents in all other respects. - - You may extract a single document from such a collection, and - distribute it individually under this License, provided you insert - a copy of this License into the extracted document, and follow - this License in all other respects regarding verbatim copying of - that document. - - 7. AGGREGATION WITH INDEPENDENT WORKS - - A compilation of the Document or its derivatives with other - separate and independent documents or works, in or on a volume of - a storage or distribution medium, does not as a whole count as a - Modified Version of the Document, provided no compilation - copyright is claimed for the compilation. Such a compilation is - called an "aggregate", and this License does not apply to the - other self-contained works thus compiled with the Document, on - account of their being thus compiled, if they are not themselves - derivative works of the Document. - - If the Cover Text requirement of section 3 is applicable to these - copies of the Document, then if the Document is less than one - quarter of the entire aggregate, the Document's Cover Texts may be - placed on covers that surround only the Document within the - aggregate. Otherwise they must appear on covers around the whole - aggregate. - - 8. TRANSLATION - - Translation is considered a kind of modification, so you may - distribute translations of the Document under the terms of section - 4. Replacing Invariant Sections with translations requires special - permission from their copyright holders, but you may include - translations of some or all Invariant Sections in addition to the - original versions of these Invariant Sections. You may include a - translation of this License provided that you also include the - original English version of this License. In case of a - disagreement between the translation and the original English - version of this License, the original English version will prevail. - - 9. TERMINATION - - You may not copy, modify, sublicense, or distribute the Document - except as expressly provided for under this License. Any other - attempt to copy, modify, sublicense or distribute the Document is - void, and will automatically terminate your rights under this - License. However, parties who have received copies, or rights, - from you under this License will not have their licenses - terminated so long as such parties remain in full compliance. - - 10. FUTURE REVISIONS OF THIS LICENSE - - The Free Software Foundation may publish new, revised versions of - the GNU Free Documentation License from time to time. Such new - versions will be similar in spirit to the present version, but may - differ in detail to address new problems or concerns. See - http://www.gnu.org/copyleft/. - - Each version of the License is given a distinguishing version - number. If the Document specifies that a particular numbered - version of this License "or any later version" applies to it, you - have the option of following the terms and conditions either of - that specified version or of any later version that has been - published (not as a draft) by the Free Software Foundation. If - the Document does not specify a version number of this License, - you may choose any version ever published (not as a draft) by the - Free Software Foundation. - - -ADDENDUM: How to use this License for your documents -==================================================== - -To use this License in a document you have written, include a copy of -the License in the document and put the following copyright and license -notices just after the title page: - - Copyright (C) YEAR YOUR NAME. - Permission is granted to copy, distribute and/or modify this document - under the terms of the GNU Free Documentation License, Version 1.1 - or any later version published by the Free Software Foundation; - with the Invariant Sections being LIST THEIR TITLES, with the - Front-Cover Texts being LIST, and with the Back-Cover Texts being LIST. - A copy of the license is included in the section entitled "GNU - Free Documentation License." - - If you have no Invariant Sections, write "with no Invariant Sections" -instead of saying which ones are invariant. If you have no Front-Cover -Texts, write "no Front-Cover Texts" instead of "Front-Cover Texts being -LIST"; likewise for Back-Cover Texts. - - If your document contains nontrivial examples of program code, we -recommend releasing these examples in parallel under your choice of -free software license, such as the GNU General Public License, to -permit their use in free software. - - -File: bfd.info, Node: Index, Prev: GNU Free Documentation License, Up: Top - -Index -***** - - -* Menu: - -* _bfd_final_link_relocate: Relocating the section contents. - (line 22) -* _bfd_generic_link_add_archive_symbols: Adding symbols from an archive. - (line 12) -* _bfd_generic_link_add_one_symbol: Adding symbols from an object file. - (line 19) -* _bfd_generic_make_empty_symbol: symbol handling functions. - (line 92) -* _bfd_link_add_symbols in target vector: Adding Symbols to the Hash Table. - (line 6) -* _bfd_link_final_link in target vector: Performing the Final Link. - (line 6) -* _bfd_link_hash_table_create in target vector: Creating a Linker Hash Table. - (line 6) -* _bfd_relocate_contents: Relocating the section contents. - (line 22) -* _bfd_strip_section_from_output: section prototypes. (line 242) -* aout_SIZE_machine_type: aout. (line 146) -* aout_SIZE_mkobject: aout. (line 138) -* aout_SIZE_new_section_hook: aout. (line 175) -* aout_SIZE_set_arch_mach: aout. (line 162) -* aout_SIZE_some_aout_object_p: aout. (line 125) -* aout_SIZE_swap_exec_header_in: aout. (line 101) -* aout_SIZE_swap_exec_header_out: aout. (line 113) -* arelent_chain: typedef arelent. (line 338) -* BFD: Overview. (line 6) -* BFD canonical format: Canonical format. (line 11) -* bfd_alloc: Opening and Closing. - (line 179) -* bfd_alt_mach_code: BFD front end. (line 588) -* bfd_arch_bits_per_address: Architectures. (line 453) -* bfd_arch_bits_per_byte: Architectures. (line 445) -* bfd_arch_get_compatible: Architectures. (line 388) -* bfd_arch_list: Architectures. (line 379) -* bfd_arch_mach_octets_per_byte: Architectures. (line 522) -* bfd_cache_close: File Caching. (line 53) -* bfd_cache_close_all: File Caching. (line 66) -* bfd_cache_init: File Caching. (line 45) -* bfd_cache_lookup: File Caching. (line 32) -* bfd_cache_lookup_worker: File Caching. (line 91) -* BFD_CACHE_MAX_OPEN macro: File Caching. (line 15) -* bfd_calc_gnu_debuglink_crc32: Opening and Closing. - (line 197) -* bfd_canonicalize_reloc: BFD front end. (line 315) -* bfd_canonicalize_symtab: symbol handling functions. - (line 50) -* bfd_check_format: Formats. (line 18) -* bfd_check_format_matches: Formats. (line 49) -* bfd_check_overflow: typedef arelent. (line 350) -* bfd_close: Opening and Closing. - (line 104) -* bfd_close_all_done: Opening and Closing. - (line 122) -* bfd_coff_backend_data: coff. (line 246) -* bfd_copy_private_bfd_data: BFD front end. (line 454) -* bfd_copy_private_header_data: BFD front end. (line 436) -* bfd_copy_private_section_data: section prototypes. (line 224) -* bfd_copy_private_symbol_data: symbol handling functions. - (line 140) -* bfd_core_file_failing_command: Core Files. (line 9) -* bfd_core_file_failing_signal: Core Files. (line 18) -* bfd_create: Opening and Closing. - (line 141) -* bfd_create_gnu_debuglink_section: Opening and Closing. - (line 263) -* bfd_decode_symclass: symbol handling functions. - (line 111) -* bfd_default_arch_struct: Architectures. (line 400) -* bfd_default_compatible: Architectures. (line 462) -* bfd_default_reloc_type_lookup: howto manager. (line 1704) -* bfd_default_scan: Architectures. (line 471) -* bfd_default_set_arch_mach: Architectures. (line 418) -* bfd_elf_find_section: elf. (line 15) -* bfd_errmsg: BFD front end. (line 243) -* bfd_fdopenr: Opening and Closing. - (line 22) -* bfd_fill_in_gnu_debuglink_section: Opening and Closing. - (line 277) -* bfd_find_target: bfd_target. (line 420) -* bfd_follow_gnu_debuglink: Opening and Closing. - (line 242) -* bfd_format_string: Formats. (line 76) -* bfd_generic_discard_group: section prototypes. (line 264) -* bfd_generic_gc_sections: howto manager. (line 1735) -* bfd_generic_get_relocated_section_contents: howto manager. (line 1755) -* bfd_generic_is_group_section: section prototypes. (line 256) -* bfd_generic_merge_sections: howto manager. (line 1745) -* bfd_generic_relax_section: howto manager. (line 1722) -* bfd_get_arch: Architectures. (line 429) -* bfd_get_arch_info: Architectures. (line 481) -* bfd_get_arch_size: BFD front end. (line 359) -* bfd_get_error: BFD front end. (line 226) -* bfd_get_error_handler: BFD front end. (line 294) -* bfd_get_gp_size: BFD front end. (line 400) -* bfd_get_mach: Architectures. (line 437) -* bfd_get_mtime: BFD front end. (line 676) -* bfd_get_next_mapent: Archives. (line 49) -* bfd_get_reloc_code_name: howto manager. (line 1713) -* bfd_get_reloc_size: typedef arelent. (line 329) -* bfd_get_reloc_upper_bound: BFD front end. (line 305) -* bfd_get_section_by_name: section prototypes. (line 17) -* bfd_get_section_by_name_if: section prototypes. (line 31) -* bfd_get_section_contents: section prototypes. (line 197) -* bfd_get_sign_extend_vma: BFD front end. (line 372) -* bfd_get_size <1>: Internal. (line 22) -* bfd_get_size: BFD front end. (line 685) -* bfd_get_symtab_upper_bound: symbol handling functions. - (line 6) -* bfd_get_unique_section_name: section prototypes. (line 50) -* bfd_h_put_size: Internal. (line 94) -* bfd_hash_allocate: Creating and Freeing a Hash Table. - (line 17) -* bfd_hash_lookup: Looking Up or Entering a String. - (line 6) -* bfd_hash_newfunc: Creating and Freeing a Hash Table. - (line 12) -* bfd_hash_set_default_size: Creating and Freeing a Hash Table. - (line 25) -* bfd_hash_table_free: Creating and Freeing a Hash Table. - (line 21) -* bfd_hash_table_init: Creating and Freeing a Hash Table. - (line 6) -* bfd_hash_table_init_n: Creating and Freeing a Hash Table. - (line 6) -* bfd_hash_traverse: Traversing a Hash Table. - (line 6) -* bfd_init: Initialization. (line 8) -* bfd_install_relocation: typedef arelent. (line 391) -* bfd_is_local_label: symbol handling functions. - (line 17) -* bfd_is_local_label_name: symbol handling functions. - (line 26) -* bfd_is_target_special_symbol: symbol handling functions. - (line 38) -* bfd_is_undefined_symclass: symbol handling functions. - (line 120) -* bfd_last_cache: File Caching. (line 22) -* bfd_link_split_section: Writing the symbol table. - (line 44) -* bfd_log2: Internal. (line 161) -* bfd_lookup_arch: Architectures. (line 489) -* bfd_make_debug_symbol: symbol handling functions. - (line 102) -* bfd_make_empty_symbol: symbol handling functions. - (line 78) -* bfd_make_readable: Opening and Closing. - (line 165) -* bfd_make_section: section prototypes. (line 98) -* bfd_make_section_anyway: section prototypes. (line 82) -* bfd_make_section_old_way: section prototypes. (line 62) -* bfd_make_writable: Opening and Closing. - (line 151) -* bfd_malloc_and_get_section: section prototypes. (line 214) -* bfd_map_over_sections: section prototypes. (line 124) -* bfd_merge_private_bfd_data: BFD front end. (line 470) -* bfd_octets_per_byte: Architectures. (line 512) -* bfd_open_file: File Caching. (line 79) -* bfd_openr: Opening and Closing. - (line 6) -* bfd_openr_iovec: Opening and Closing. - (line 52) -* bfd_openr_next_archived_file: Archives. (line 75) -* bfd_openstreamr: Opening and Closing. - (line 43) -* bfd_openw: Opening and Closing. - (line 92) -* bfd_perform_relocation: typedef arelent. (line 366) -* bfd_perror: BFD front end. (line 252) -* bfd_preserve_finish: BFD front end. (line 636) -* bfd_preserve_restore: BFD front end. (line 626) -* bfd_preserve_save: BFD front end. (line 610) -* bfd_print_symbol_vandf: symbol handling functions. - (line 70) -* bfd_printable_arch_mach: Architectures. (line 500) -* bfd_printable_name: Architectures. (line 360) -* bfd_put_size: Internal. (line 19) -* BFD_RELOC_12_PCREL: howto manager. (line 39) -* BFD_RELOC_14: howto manager. (line 31) -* BFD_RELOC_16: howto manager. (line 30) -* BFD_RELOC_16_BASEREL: howto manager. (line 80) -* BFD_RELOC_16_GOT_PCREL: howto manager. (line 52) -* BFD_RELOC_16_GOTOFF: howto manager. (line 55) -* BFD_RELOC_16_PCREL: howto manager. (line 38) -* BFD_RELOC_16_PCREL_S2: howto manager. (line 92) -* BFD_RELOC_16_PLT_PCREL: howto manager. (line 63) -* BFD_RELOC_16_PLTOFF: howto manager. (line 67) -* BFD_RELOC_16C_ABS20: howto manager. (line 1464) -* BFD_RELOC_16C_ABS20_C: howto manager. (line 1465) -* BFD_RELOC_16C_ABS24: howto manager. (line 1466) -* BFD_RELOC_16C_ABS24_C: howto manager. (line 1467) -* BFD_RELOC_16C_DISP04: howto manager. (line 1444) -* BFD_RELOC_16C_DISP04_C: howto manager. (line 1445) -* BFD_RELOC_16C_DISP08: howto manager. (line 1446) -* BFD_RELOC_16C_DISP08_C: howto manager. (line 1447) -* BFD_RELOC_16C_DISP16: howto manager. (line 1448) -* BFD_RELOC_16C_DISP16_C: howto manager. (line 1449) -* BFD_RELOC_16C_DISP24: howto manager. (line 1450) -* BFD_RELOC_16C_DISP24_C: howto manager. (line 1451) -* BFD_RELOC_16C_DISP24a: howto manager. (line 1452) -* BFD_RELOC_16C_DISP24a_C: howto manager. (line 1453) -* BFD_RELOC_16C_IMM04: howto manager. (line 1468) -* BFD_RELOC_16C_IMM04_C: howto manager. (line 1469) -* BFD_RELOC_16C_IMM16: howto manager. (line 1470) -* BFD_RELOC_16C_IMM16_C: howto manager. (line 1471) -* BFD_RELOC_16C_IMM20: howto manager. (line 1472) -* BFD_RELOC_16C_IMM20_C: howto manager. (line 1473) -* BFD_RELOC_16C_IMM24: howto manager. (line 1474) -* BFD_RELOC_16C_IMM24_C: howto manager. (line 1475) -* BFD_RELOC_16C_IMM32: howto manager. (line 1476) -* BFD_RELOC_16C_IMM32_C: howto manager. (line 1477) -* BFD_RELOC_16C_NUM08: howto manager. (line 1438) -* BFD_RELOC_16C_NUM08_C: howto manager. (line 1439) -* BFD_RELOC_16C_NUM16: howto manager. (line 1440) -* BFD_RELOC_16C_NUM16_C: howto manager. (line 1441) -* BFD_RELOC_16C_NUM32: howto manager. (line 1442) -* BFD_RELOC_16C_NUM32_C: howto manager. (line 1443) -* BFD_RELOC_16C_REG04: howto manager. (line 1454) -* BFD_RELOC_16C_REG04_C: howto manager. (line 1455) -* BFD_RELOC_16C_REG04a: howto manager. (line 1456) -* BFD_RELOC_16C_REG04a_C: howto manager. (line 1457) -* BFD_RELOC_16C_REG14: howto manager. (line 1458) -* BFD_RELOC_16C_REG14_C: howto manager. (line 1459) -* BFD_RELOC_16C_REG16: howto manager. (line 1460) -* BFD_RELOC_16C_REG16_C: howto manager. (line 1461) -* BFD_RELOC_16C_REG20: howto manager. (line 1462) -* BFD_RELOC_16C_REG20_C: howto manager. (line 1463) -* BFD_RELOC_23_PCREL_S2: howto manager. (line 93) -* BFD_RELOC_24: howto manager. (line 29) -* BFD_RELOC_24_PCREL: howto manager. (line 37) -* BFD_RELOC_24_PLT_PCREL: howto manager. (line 62) -* BFD_RELOC_26: howto manager. (line 28) -* BFD_RELOC_32: howto manager. (line 27) -* BFD_RELOC_32_BASEREL: howto manager. (line 79) -* BFD_RELOC_32_GOT_PCREL: howto manager. (line 51) -* BFD_RELOC_32_GOTOFF: howto manager. (line 54) -* BFD_RELOC_32_PCREL: howto manager. (line 36) -* BFD_RELOC_32_PCREL_S2: howto manager. (line 91) -* BFD_RELOC_32_PLT_PCREL: howto manager. (line 61) -* BFD_RELOC_32_PLTOFF: howto manager. (line 66) -* BFD_RELOC_32_SECREL: howto manager. (line 48) -* BFD_RELOC_386_COPY: howto manager. (line 422) -* BFD_RELOC_386_GLOB_DAT: howto manager. (line 423) -* BFD_RELOC_386_GOT32: howto manager. (line 420) -* BFD_RELOC_386_GOTOFF: howto manager. (line 426) -* BFD_RELOC_386_GOTPC: howto manager. (line 427) -* BFD_RELOC_386_JUMP_SLOT: howto manager. (line 424) -* BFD_RELOC_386_PLT32: howto manager. (line 421) -* BFD_RELOC_386_RELATIVE: howto manager. (line 425) -* BFD_RELOC_386_TLS_DTPMOD32: howto manager. (line 437) -* BFD_RELOC_386_TLS_DTPOFF32: howto manager. (line 438) -* BFD_RELOC_386_TLS_GD: howto manager. (line 432) -* BFD_RELOC_386_TLS_GOTIE: howto manager. (line 430) -* BFD_RELOC_386_TLS_IE: howto manager. (line 429) -* BFD_RELOC_386_TLS_IE_32: howto manager. (line 435) -* BFD_RELOC_386_TLS_LDM: howto manager. (line 433) -* BFD_RELOC_386_TLS_LDO_32: howto manager. (line 434) -* BFD_RELOC_386_TLS_LE: howto manager. (line 431) -* BFD_RELOC_386_TLS_LE_32: howto manager. (line 436) -* BFD_RELOC_386_TLS_TPOFF: howto manager. (line 428) -* BFD_RELOC_386_TLS_TPOFF32: howto manager. (line 439) -* BFD_RELOC_390_12: howto manager. (line 1155) -* BFD_RELOC_390_20: howto manager. (line 1255) -* BFD_RELOC_390_COPY: howto manager. (line 1164) -* BFD_RELOC_390_GLOB_DAT: howto manager. (line 1167) -* BFD_RELOC_390_GOT12: howto manager. (line 1158) -* BFD_RELOC_390_GOT16: howto manager. (line 1179) -* BFD_RELOC_390_GOT20: howto manager. (line 1256) -* BFD_RELOC_390_GOT64: howto manager. (line 1197) -* BFD_RELOC_390_GOTENT: howto manager. (line 1203) -* BFD_RELOC_390_GOTOFF64: howto manager. (line 1206) -* BFD_RELOC_390_GOTPC: howto manager. (line 1176) -* BFD_RELOC_390_GOTPCDBL: howto manager. (line 1194) -* BFD_RELOC_390_GOTPLT12: howto manager. (line 1209) -* BFD_RELOC_390_GOTPLT16: howto manager. (line 1212) -* BFD_RELOC_390_GOTPLT20: howto manager. (line 1257) -* BFD_RELOC_390_GOTPLT32: howto manager. (line 1215) -* BFD_RELOC_390_GOTPLT64: howto manager. (line 1218) -* BFD_RELOC_390_GOTPLTENT: howto manager. (line 1221) -* BFD_RELOC_390_JMP_SLOT: howto manager. (line 1170) -* BFD_RELOC_390_PC16DBL: howto manager. (line 1182) -* BFD_RELOC_390_PC32DBL: howto manager. (line 1188) -* BFD_RELOC_390_PLT16DBL: howto manager. (line 1185) -* BFD_RELOC_390_PLT32: howto manager. (line 1161) -* BFD_RELOC_390_PLT32DBL: howto manager. (line 1191) -* BFD_RELOC_390_PLT64: howto manager. (line 1200) -* BFD_RELOC_390_PLTOFF16: howto manager. (line 1224) -* BFD_RELOC_390_PLTOFF32: howto manager. (line 1227) -* BFD_RELOC_390_PLTOFF64: howto manager. (line 1230) -* BFD_RELOC_390_RELATIVE: howto manager. (line 1173) -* BFD_RELOC_390_TLS_DTPMOD: howto manager. (line 1250) -* BFD_RELOC_390_TLS_DTPOFF: howto manager. (line 1251) -* BFD_RELOC_390_TLS_GD32: howto manager. (line 1236) -* BFD_RELOC_390_TLS_GD64: howto manager. (line 1237) -* BFD_RELOC_390_TLS_GDCALL: howto manager. (line 1234) -* BFD_RELOC_390_TLS_GOTIE12: howto manager. (line 1238) -* BFD_RELOC_390_TLS_GOTIE20: howto manager. (line 1258) -* BFD_RELOC_390_TLS_GOTIE32: howto manager. (line 1239) -* BFD_RELOC_390_TLS_GOTIE64: howto manager. (line 1240) -* BFD_RELOC_390_TLS_IE32: howto manager. (line 1243) -* BFD_RELOC_390_TLS_IE64: howto manager. (line 1244) -* BFD_RELOC_390_TLS_IEENT: howto manager. (line 1245) -* BFD_RELOC_390_TLS_LDCALL: howto manager. (line 1235) -* BFD_RELOC_390_TLS_LDM32: howto manager. (line 1241) -* BFD_RELOC_390_TLS_LDM64: howto manager. (line 1242) -* BFD_RELOC_390_TLS_LDO32: howto manager. (line 1248) -* BFD_RELOC_390_TLS_LDO64: howto manager. (line 1249) -* BFD_RELOC_390_TLS_LE32: howto manager. (line 1246) -* BFD_RELOC_390_TLS_LE64: howto manager. (line 1247) -* BFD_RELOC_390_TLS_LOAD: howto manager. (line 1233) -* BFD_RELOC_390_TLS_TPOFF: howto manager. (line 1252) -* BFD_RELOC_64: howto manager. (line 26) -* BFD_RELOC_64_PCREL: howto manager. (line 35) -* BFD_RELOC_64_PLT_PCREL: howto manager. (line 60) -* BFD_RELOC_64_PLTOFF: howto manager. (line 65) -* BFD_RELOC_68K_GLOB_DAT: howto manager. (line 74) -* BFD_RELOC_68K_JMP_SLOT: howto manager. (line 75) -* BFD_RELOC_68K_RELATIVE: howto manager. (line 76) -* BFD_RELOC_8: howto manager. (line 32) -* BFD_RELOC_860_COPY: howto manager. (line 1543) -* BFD_RELOC_860_GLOB_DAT: howto manager. (line 1544) -* BFD_RELOC_860_HAGOT: howto manager. (line 1569) -* BFD_RELOC_860_HAGOTOFF: howto manager. (line 1570) -* BFD_RELOC_860_HAPC: howto manager. (line 1571) -* BFD_RELOC_860_HIGH: howto manager. (line 1572) -* BFD_RELOC_860_HIGHADJ: howto manager. (line 1568) -* BFD_RELOC_860_HIGOT: howto manager. (line 1573) -* BFD_RELOC_860_HIGOTOFF: howto manager. (line 1574) -* BFD_RELOC_860_JUMP_SLOT: howto manager. (line 1545) -* BFD_RELOC_860_LOGOT0: howto manager. (line 1557) -* BFD_RELOC_860_LOGOT1: howto manager. (line 1559) -* BFD_RELOC_860_LOGOTOFF0: howto manager. (line 1561) -* BFD_RELOC_860_LOGOTOFF1: howto manager. (line 1563) -* BFD_RELOC_860_LOGOTOFF2: howto manager. (line 1565) -* BFD_RELOC_860_LOGOTOFF3: howto manager. (line 1566) -* BFD_RELOC_860_LOPC: howto manager. (line 1567) -* BFD_RELOC_860_LOW0: howto manager. (line 1550) -* BFD_RELOC_860_LOW1: howto manager. (line 1552) -* BFD_RELOC_860_LOW2: howto manager. (line 1554) -* BFD_RELOC_860_LOW3: howto manager. (line 1556) -* BFD_RELOC_860_PC16: howto manager. (line 1549) -* BFD_RELOC_860_PC26: howto manager. (line 1547) -* BFD_RELOC_860_PLT26: howto manager. (line 1548) -* BFD_RELOC_860_RELATIVE: howto manager. (line 1546) -* BFD_RELOC_860_SPGOT0: howto manager. (line 1558) -* BFD_RELOC_860_SPGOT1: howto manager. (line 1560) -* BFD_RELOC_860_SPGOTOFF0: howto manager. (line 1562) -* BFD_RELOC_860_SPGOTOFF1: howto manager. (line 1564) -* BFD_RELOC_860_SPLIT0: howto manager. (line 1551) -* BFD_RELOC_860_SPLIT1: howto manager. (line 1553) -* BFD_RELOC_860_SPLIT2: howto manager. (line 1555) -* BFD_RELOC_8_BASEREL: howto manager. (line 84) -* BFD_RELOC_8_FFnn: howto manager. (line 88) -* BFD_RELOC_8_GOT_PCREL: howto manager. (line 53) -* BFD_RELOC_8_GOTOFF: howto manager. (line 59) -* BFD_RELOC_8_PCREL: howto manager. (line 40) -* BFD_RELOC_8_PLT_PCREL: howto manager. (line 64) -* BFD_RELOC_8_PLTOFF: howto manager. (line 71) -* BFD_RELOC_ALPHA_BRSGP: howto manager. (line 259) -* BFD_RELOC_ALPHA_CODEADDR: howto manager. (line 250) -* BFD_RELOC_ALPHA_DTPMOD64: howto manager. (line 266) -* BFD_RELOC_ALPHA_DTPREL16: howto manager. (line 271) -* BFD_RELOC_ALPHA_DTPREL64: howto manager. (line 268) -* BFD_RELOC_ALPHA_DTPREL_HI16: howto manager. (line 269) -* BFD_RELOC_ALPHA_DTPREL_LO16: howto manager. (line 270) -* BFD_RELOC_ALPHA_ELF_LITERAL: howto manager. (line 215) -* BFD_RELOC_ALPHA_GOTDTPREL16: howto manager. (line 267) -* BFD_RELOC_ALPHA_GOTTPREL16: howto manager. (line 272) -* BFD_RELOC_ALPHA_GPDISP: howto manager. (line 209) -* BFD_RELOC_ALPHA_GPDISP_HI16: howto manager. (line 195) -* BFD_RELOC_ALPHA_GPDISP_LO16: howto manager. (line 203) -* BFD_RELOC_ALPHA_GPREL_HI16: howto manager. (line 254) -* BFD_RELOC_ALPHA_GPREL_LO16: howto manager. (line 255) -* BFD_RELOC_ALPHA_HINT: howto manager. (line 241) -* BFD_RELOC_ALPHA_LINKAGE: howto manager. (line 246) -* BFD_RELOC_ALPHA_LITERAL: howto manager. (line 214) -* BFD_RELOC_ALPHA_LITUSE: howto manager. (line 216) -* BFD_RELOC_ALPHA_TLSGD: howto manager. (line 264) -* BFD_RELOC_ALPHA_TLSLDM: howto manager. (line 265) -* BFD_RELOC_ALPHA_TPREL16: howto manager. (line 276) -* BFD_RELOC_ALPHA_TPREL64: howto manager. (line 273) -* BFD_RELOC_ALPHA_TPREL_HI16: howto manager. (line 274) -* BFD_RELOC_ALPHA_TPREL_LO16: howto manager. (line 275) -* BFD_RELOC_ARC_B22_PCREL: howto manager. (line 754) -* BFD_RELOC_ARC_B26: howto manager. (line 759) -* BFD_RELOC_ARM_ADR_IMM: howto manager. (line 615) -* BFD_RELOC_ARM_ADRL_IMMEDIATE: howto manager. (line 607) -* BFD_RELOC_ARM_COPY: howto manager. (line 628) -* BFD_RELOC_ARM_CP_OFF_IMM: howto manager. (line 613) -* BFD_RELOC_ARM_CP_OFF_IMM_S2: howto manager. (line 614) -* BFD_RELOC_ARM_GLOB_DAT: howto manager. (line 629) -* BFD_RELOC_ARM_GOT12: howto manager. (line 625) -* BFD_RELOC_ARM_GOT32: howto manager. (line 626) -* BFD_RELOC_ARM_GOTOFF: howto manager. (line 632) -* BFD_RELOC_ARM_GOTPC: howto manager. (line 633) -* BFD_RELOC_ARM_HWLITERAL: howto manager. (line 620) -* BFD_RELOC_ARM_IMMEDIATE: howto manager. (line 606) -* BFD_RELOC_ARM_IN_POOL: howto manager. (line 618) -* BFD_RELOC_ARM_JUMP_SLOT: howto manager. (line 627) -* BFD_RELOC_ARM_LDR_IMM: howto manager. (line 616) -* BFD_RELOC_ARM_LITERAL: howto manager. (line 617) -* BFD_RELOC_ARM_MULTI: howto manager. (line 612) -* BFD_RELOC_ARM_OFFSET_IMM: howto manager. (line 608) -* BFD_RELOC_ARM_OFFSET_IMM8: howto manager. (line 619) -* BFD_RELOC_ARM_PCREL_BLX: howto manager. (line 596) -* BFD_RELOC_ARM_PCREL_BRANCH: howto manager. (line 592) -* BFD_RELOC_ARM_PLT32: howto manager. (line 630) -* BFD_RELOC_ARM_PREL31: howto manager. (line 652) -* BFD_RELOC_ARM_RELATIVE: howto manager. (line 631) -* BFD_RELOC_ARM_ROSEGREL32: howto manager. (line 641) -* BFD_RELOC_ARM_SBREL32: howto manager. (line 644) -* BFD_RELOC_ARM_SHIFT_IMM: howto manager. (line 609) -* BFD_RELOC_ARM_SMI: howto manager. (line 610) -* BFD_RELOC_ARM_SWI: howto manager. (line 611) -* BFD_RELOC_ARM_TARGET1: howto manager. (line 637) -* BFD_RELOC_ARM_TARGET2: howto manager. (line 647) -* BFD_RELOC_ARM_THUMB_ADD: howto manager. (line 621) -* BFD_RELOC_ARM_THUMB_IMM: howto manager. (line 622) -* BFD_RELOC_ARM_THUMB_OFFSET: howto manager. (line 624) -* BFD_RELOC_ARM_THUMB_SHIFT: howto manager. (line 623) -* BFD_RELOC_AVR_13_PCREL: howto manager. (line 1076) -* BFD_RELOC_AVR_16_PM: howto manager. (line 1080) -* BFD_RELOC_AVR_6: howto manager. (line 1147) -* BFD_RELOC_AVR_6_ADIW: howto manager. (line 1151) -* BFD_RELOC_AVR_7_PCREL: howto manager. (line 1072) -* BFD_RELOC_AVR_CALL: howto manager. (line 1139) -* BFD_RELOC_AVR_HH8_LDI: howto manager. (line 1092) -* BFD_RELOC_AVR_HH8_LDI_NEG: howto manager. (line 1107) -* BFD_RELOC_AVR_HH8_LDI_PM: howto manager. (line 1120) -* BFD_RELOC_AVR_HH8_LDI_PM_NEG: howto manager. (line 1134) -* BFD_RELOC_AVR_HI8_LDI: howto manager. (line 1088) -* BFD_RELOC_AVR_HI8_LDI_NEG: howto manager. (line 1102) -* BFD_RELOC_AVR_HI8_LDI_PM: howto manager. (line 1116) -* BFD_RELOC_AVR_HI8_LDI_PM_NEG: howto manager. (line 1129) -* BFD_RELOC_AVR_LDI: howto manager. (line 1143) -* BFD_RELOC_AVR_LO8_LDI: howto manager. (line 1084) -* BFD_RELOC_AVR_LO8_LDI_NEG: howto manager. (line 1097) -* BFD_RELOC_AVR_LO8_LDI_PM: howto manager. (line 1112) -* BFD_RELOC_AVR_LO8_LDI_PM_NEG: howto manager. (line 1125) -* bfd_reloc_code_type: howto manager. (line 10) -* BFD_RELOC_CRIS_16_GOT: howto manager. (line 1524) -* BFD_RELOC_CRIS_16_GOTPLT: howto manager. (line 1530) -* BFD_RELOC_CRIS_32_GOT: howto manager. (line 1521) -* BFD_RELOC_CRIS_32_GOTPLT: howto manager. (line 1527) -* BFD_RELOC_CRIS_32_GOTREL: howto manager. (line 1533) -* BFD_RELOC_CRIS_32_PLT_GOTREL: howto manager. (line 1536) -* BFD_RELOC_CRIS_32_PLT_PCREL: howto manager. (line 1539) -* BFD_RELOC_CRIS_BDISP8: howto manager. (line 1502) -* BFD_RELOC_CRIS_COPY: howto manager. (line 1515) -* BFD_RELOC_CRIS_GLOB_DAT: howto manager. (line 1516) -* BFD_RELOC_CRIS_JUMP_SLOT: howto manager. (line 1517) -* BFD_RELOC_CRIS_LAPCQ_OFFSET: howto manager. (line 1510) -* BFD_RELOC_CRIS_RELATIVE: howto manager. (line 1518) -* BFD_RELOC_CRIS_SIGNED_16: howto manager. (line 1508) -* BFD_RELOC_CRIS_SIGNED_6: howto manager. (line 1504) -* BFD_RELOC_CRIS_SIGNED_8: howto manager. (line 1506) -* BFD_RELOC_CRIS_UNSIGNED_16: howto manager. (line 1509) -* BFD_RELOC_CRIS_UNSIGNED_4: howto manager. (line 1511) -* BFD_RELOC_CRIS_UNSIGNED_5: howto manager. (line 1503) -* BFD_RELOC_CRIS_UNSIGNED_6: howto manager. (line 1505) -* BFD_RELOC_CRIS_UNSIGNED_8: howto manager. (line 1507) -* BFD_RELOC_CRX_ABS16: howto manager. (line 1490) -* BFD_RELOC_CRX_ABS32: howto manager. (line 1491) -* BFD_RELOC_CRX_IMM16: howto manager. (line 1495) -* BFD_RELOC_CRX_IMM32: howto manager. (line 1496) -* BFD_RELOC_CRX_NUM16: howto manager. (line 1493) -* BFD_RELOC_CRX_NUM32: howto manager. (line 1494) -* BFD_RELOC_CRX_NUM8: howto manager. (line 1492) -* BFD_RELOC_CRX_REGREL12: howto manager. (line 1486) -* BFD_RELOC_CRX_REGREL22: howto manager. (line 1487) -* BFD_RELOC_CRX_REGREL28: howto manager. (line 1488) -* BFD_RELOC_CRX_REGREL32: howto manager. (line 1489) -* BFD_RELOC_CRX_REL16: howto manager. (line 1483) -* BFD_RELOC_CRX_REL24: howto manager. (line 1484) -* BFD_RELOC_CRX_REL32: howto manager. (line 1485) -* BFD_RELOC_CRX_REL4: howto manager. (line 1480) -* BFD_RELOC_CRX_REL8: howto manager. (line 1481) -* BFD_RELOC_CRX_REL8_CMP: howto manager. (line 1482) -* BFD_RELOC_CRX_SWITCH16: howto manager. (line 1498) -* BFD_RELOC_CRX_SWITCH32: howto manager. (line 1499) -* BFD_RELOC_CRX_SWITCH8: howto manager. (line 1497) -* BFD_RELOC_CTOR: howto manager. (line 586) -* BFD_RELOC_D10V_10_PCREL_L: howto manager. (line 768) -* BFD_RELOC_D10V_10_PCREL_R: howto manager. (line 764) -* BFD_RELOC_D10V_18: howto manager. (line 773) -* BFD_RELOC_D10V_18_PCREL: howto manager. (line 776) -* BFD_RELOC_D30V_15: howto manager. (line 791) -* BFD_RELOC_D30V_15_PCREL: howto manager. (line 795) -* BFD_RELOC_D30V_15_PCREL_R: howto manager. (line 799) -* BFD_RELOC_D30V_21: howto manager. (line 804) -* BFD_RELOC_D30V_21_PCREL: howto manager. (line 808) -* BFD_RELOC_D30V_21_PCREL_R: howto manager. (line 812) -* BFD_RELOC_D30V_32: howto manager. (line 817) -* BFD_RELOC_D30V_32_PCREL: howto manager. (line 820) -* BFD_RELOC_D30V_6: howto manager. (line 779) -* BFD_RELOC_D30V_9_PCREL: howto manager. (line 782) -* BFD_RELOC_D30V_9_PCREL_R: howto manager. (line 786) -* BFD_RELOC_DLX_HI16_S: howto manager. (line 823) -* BFD_RELOC_DLX_JMP26: howto manager. (line 829) -* BFD_RELOC_DLX_LO16: howto manager. (line 826) -* BFD_RELOC_FR30_10_IN_8: howto manager. (line 1002) -* BFD_RELOC_FR30_12_PCREL: howto manager. (line 1010) -* BFD_RELOC_FR30_20: howto manager. (line 986) -* BFD_RELOC_FR30_48: howto manager. (line 983) -* BFD_RELOC_FR30_6_IN_4: howto manager. (line 990) -* BFD_RELOC_FR30_8_IN_8: howto manager. (line 994) -* BFD_RELOC_FR30_9_IN_8: howto manager. (line 998) -* BFD_RELOC_FR30_9_PCREL: howto manager. (line 1006) -* BFD_RELOC_FRV_FUNCDESC: howto manager. (line 364) -* BFD_RELOC_FRV_FUNCDESC_GOT12: howto manager. (line 365) -* BFD_RELOC_FRV_FUNCDESC_GOTHI: howto manager. (line 366) -* BFD_RELOC_FRV_FUNCDESC_GOTLO: howto manager. (line 367) -* BFD_RELOC_FRV_FUNCDESC_GOTOFF12: howto manager. (line 369) -* BFD_RELOC_FRV_FUNCDESC_GOTOFFHI: howto manager. (line 370) -* BFD_RELOC_FRV_FUNCDESC_GOTOFFLO: howto manager. (line 371) -* BFD_RELOC_FRV_FUNCDESC_VALUE: howto manager. (line 368) -* BFD_RELOC_FRV_GETTLSOFF: howto manager. (line 375) -* BFD_RELOC_FRV_GETTLSOFF_RELAX: howto manager. (line 388) -* BFD_RELOC_FRV_GOT12: howto manager. (line 361) -* BFD_RELOC_FRV_GOTHI: howto manager. (line 362) -* BFD_RELOC_FRV_GOTLO: howto manager. (line 363) -* BFD_RELOC_FRV_GOTOFF12: howto manager. (line 372) -* BFD_RELOC_FRV_GOTOFFHI: howto manager. (line 373) -* BFD_RELOC_FRV_GOTOFFLO: howto manager. (line 374) -* BFD_RELOC_FRV_GOTTLSDESC12: howto manager. (line 377) -* BFD_RELOC_FRV_GOTTLSDESCHI: howto manager. (line 378) -* BFD_RELOC_FRV_GOTTLSDESCLO: howto manager. (line 379) -* BFD_RELOC_FRV_GOTTLSOFF12: howto manager. (line 383) -* BFD_RELOC_FRV_GOTTLSOFFHI: howto manager. (line 384) -* BFD_RELOC_FRV_GOTTLSOFFLO: howto manager. (line 385) -* BFD_RELOC_FRV_GPREL12: howto manager. (line 356) -* BFD_RELOC_FRV_GPREL32: howto manager. (line 358) -* BFD_RELOC_FRV_GPRELHI: howto manager. (line 359) -* BFD_RELOC_FRV_GPRELLO: howto manager. (line 360) -* BFD_RELOC_FRV_GPRELU12: howto manager. (line 357) -* BFD_RELOC_FRV_HI16: howto manager. (line 355) -* BFD_RELOC_FRV_LABEL16: howto manager. (line 352) -* BFD_RELOC_FRV_LABEL24: howto manager. (line 353) -* BFD_RELOC_FRV_LO16: howto manager. (line 354) -* BFD_RELOC_FRV_TLSDESC_RELAX: howto manager. (line 387) -* BFD_RELOC_FRV_TLSDESC_VALUE: howto manager. (line 376) -* BFD_RELOC_FRV_TLSMOFF: howto manager. (line 390) -* BFD_RELOC_FRV_TLSMOFF12: howto manager. (line 380) -* BFD_RELOC_FRV_TLSMOFFHI: howto manager. (line 381) -* BFD_RELOC_FRV_TLSMOFFLO: howto manager. (line 382) -* BFD_RELOC_FRV_TLSOFF: howto manager. (line 386) -* BFD_RELOC_FRV_TLSOFF_RELAX: howto manager. (line 389) -* BFD_RELOC_GPREL16: howto manager. (line 106) -* BFD_RELOC_GPREL32: howto manager. (line 107) -* BFD_RELOC_H8_DIR16A8: howto manager. (line 1581) -* BFD_RELOC_H8_DIR16R8: howto manager. (line 1582) -* BFD_RELOC_H8_DIR24A8: howto manager. (line 1583) -* BFD_RELOC_H8_DIR24R8: howto manager. (line 1584) -* BFD_RELOC_H8_DIR32A16: howto manager. (line 1585) -* BFD_RELOC_HI16: howto manager. (line 289) -* BFD_RELOC_HI16_BASEREL: howto manager. (line 82) -* BFD_RELOC_HI16_GOTOFF: howto manager. (line 57) -* BFD_RELOC_HI16_PLTOFF: howto manager. (line 69) -* BFD_RELOC_HI16_S: howto manager. (line 292) -* BFD_RELOC_HI16_S_BASEREL: howto manager. (line 83) -* BFD_RELOC_HI16_S_GOTOFF: howto manager. (line 58) -* BFD_RELOC_HI16_S_PLTOFF: howto manager. (line 70) -* BFD_RELOC_HI22: howto manager. (line 101) -* BFD_RELOC_I370_D12: howto manager. (line 583) -* BFD_RELOC_I960_CALLJ: howto manager. (line 113) -* BFD_RELOC_IA64_COPY: howto manager. (line 1374) -* BFD_RELOC_IA64_DIR32LSB: howto manager. (line 1319) -* BFD_RELOC_IA64_DIR32MSB: howto manager. (line 1318) -* BFD_RELOC_IA64_DIR64LSB: howto manager. (line 1321) -* BFD_RELOC_IA64_DIR64MSB: howto manager. (line 1320) -* BFD_RELOC_IA64_DTPMOD64LSB: howto manager. (line 1384) -* BFD_RELOC_IA64_DTPMOD64MSB: howto manager. (line 1383) -* BFD_RELOC_IA64_DTPREL14: howto manager. (line 1386) -* BFD_RELOC_IA64_DTPREL22: howto manager. (line 1387) -* BFD_RELOC_IA64_DTPREL32LSB: howto manager. (line 1390) -* BFD_RELOC_IA64_DTPREL32MSB: howto manager. (line 1389) -* BFD_RELOC_IA64_DTPREL64I: howto manager. (line 1388) -* BFD_RELOC_IA64_DTPREL64LSB: howto manager. (line 1392) -* BFD_RELOC_IA64_DTPREL64MSB: howto manager. (line 1391) -* BFD_RELOC_IA64_FPTR32LSB: howto manager. (line 1336) -* BFD_RELOC_IA64_FPTR32MSB: howto manager. (line 1335) -* BFD_RELOC_IA64_FPTR64I: howto manager. (line 1334) -* BFD_RELOC_IA64_FPTR64LSB: howto manager. (line 1338) -* BFD_RELOC_IA64_FPTR64MSB: howto manager. (line 1337) -* BFD_RELOC_IA64_GPREL22: howto manager. (line 1322) -* BFD_RELOC_IA64_GPREL32LSB: howto manager. (line 1325) -* BFD_RELOC_IA64_GPREL32MSB: howto manager. (line 1324) -* BFD_RELOC_IA64_GPREL64I: howto manager. (line 1323) -* BFD_RELOC_IA64_GPREL64LSB: howto manager. (line 1327) -* BFD_RELOC_IA64_GPREL64MSB: howto manager. (line 1326) -* BFD_RELOC_IA64_IMM14: howto manager. (line 1315) -* BFD_RELOC_IA64_IMM22: howto manager. (line 1316) -* BFD_RELOC_IA64_IMM64: howto manager. (line 1317) -* BFD_RELOC_IA64_IPLTLSB: howto manager. (line 1373) -* BFD_RELOC_IA64_IPLTMSB: howto manager. (line 1372) -* BFD_RELOC_IA64_LDXMOV: howto manager. (line 1376) -* BFD_RELOC_IA64_LTOFF22: howto manager. (line 1328) -* BFD_RELOC_IA64_LTOFF22X: howto manager. (line 1375) -* BFD_RELOC_IA64_LTOFF64I: howto manager. (line 1329) -* BFD_RELOC_IA64_LTOFF_DTPMOD22: howto manager. (line 1385) -* BFD_RELOC_IA64_LTOFF_DTPREL22: howto manager. (line 1393) -* BFD_RELOC_IA64_LTOFF_FPTR22: howto manager. (line 1350) -* BFD_RELOC_IA64_LTOFF_FPTR32LSB: howto manager. (line 1353) -* BFD_RELOC_IA64_LTOFF_FPTR32MSB: howto manager. (line 1352) -* BFD_RELOC_IA64_LTOFF_FPTR64I: howto manager. (line 1351) -* BFD_RELOC_IA64_LTOFF_FPTR64LSB: howto manager. (line 1355) -* BFD_RELOC_IA64_LTOFF_FPTR64MSB: howto manager. (line 1354) -* BFD_RELOC_IA64_LTOFF_TPREL22: howto manager. (line 1382) -* BFD_RELOC_IA64_LTV32LSB: howto manager. (line 1369) -* BFD_RELOC_IA64_LTV32MSB: howto manager. (line 1368) -* BFD_RELOC_IA64_LTV64LSB: howto manager. (line 1371) -* BFD_RELOC_IA64_LTV64MSB: howto manager. (line 1370) -* BFD_RELOC_IA64_PCREL21B: howto manager. (line 1339) -* BFD_RELOC_IA64_PCREL21BI: howto manager. (line 1340) -* BFD_RELOC_IA64_PCREL21F: howto manager. (line 1342) -* BFD_RELOC_IA64_PCREL21M: howto manager. (line 1341) -* BFD_RELOC_IA64_PCREL22: howto manager. (line 1343) -* BFD_RELOC_IA64_PCREL32LSB: howto manager. (line 1347) -* BFD_RELOC_IA64_PCREL32MSB: howto manager. (line 1346) -* BFD_RELOC_IA64_PCREL60B: howto manager. (line 1344) -* BFD_RELOC_IA64_PCREL64I: howto manager. (line 1345) -* BFD_RELOC_IA64_PCREL64LSB: howto manager. (line 1349) -* BFD_RELOC_IA64_PCREL64MSB: howto manager. (line 1348) -* BFD_RELOC_IA64_PLTOFF22: howto manager. (line 1330) -* BFD_RELOC_IA64_PLTOFF64I: howto manager. (line 1331) -* BFD_RELOC_IA64_PLTOFF64LSB: howto manager. (line 1333) -* BFD_RELOC_IA64_PLTOFF64MSB: howto manager. (line 1332) -* BFD_RELOC_IA64_REL32LSB: howto manager. (line 1365) -* BFD_RELOC_IA64_REL32MSB: howto manager. (line 1364) -* BFD_RELOC_IA64_REL64LSB: howto manager. (line 1367) -* BFD_RELOC_IA64_REL64MSB: howto manager. (line 1366) -* BFD_RELOC_IA64_SECREL32LSB: howto manager. (line 1361) -* BFD_RELOC_IA64_SECREL32MSB: howto manager. (line 1360) -* BFD_RELOC_IA64_SECREL64LSB: howto manager. (line 1363) -* BFD_RELOC_IA64_SECREL64MSB: howto manager. (line 1362) -* BFD_RELOC_IA64_SEGREL32LSB: howto manager. (line 1357) -* BFD_RELOC_IA64_SEGREL32MSB: howto manager. (line 1356) -* BFD_RELOC_IA64_SEGREL64LSB: howto manager. (line 1359) -* BFD_RELOC_IA64_SEGREL64MSB: howto manager. (line 1358) -* BFD_RELOC_IA64_TPREL14: howto manager. (line 1377) -* BFD_RELOC_IA64_TPREL22: howto manager. (line 1378) -* BFD_RELOC_IA64_TPREL64I: howto manager. (line 1379) -* BFD_RELOC_IA64_TPREL64LSB: howto manager. (line 1381) -* BFD_RELOC_IA64_TPREL64MSB: howto manager. (line 1380) -* BFD_RELOC_IP2K_ADDR16CJP: howto manager. (line 1267) -* BFD_RELOC_IP2K_BANK: howto manager. (line 1264) -* BFD_RELOC_IP2K_EX8DATA: howto manager. (line 1275) -* BFD_RELOC_IP2K_FR9: howto manager. (line 1261) -* BFD_RELOC_IP2K_FR_OFFSET: howto manager. (line 1288) -* BFD_RELOC_IP2K_HI8DATA: howto manager. (line 1274) -* BFD_RELOC_IP2K_HI8INSN: howto manager. (line 1279) -* BFD_RELOC_IP2K_LO8DATA: howto manager. (line 1273) -* BFD_RELOC_IP2K_LO8INSN: howto manager. (line 1278) -* BFD_RELOC_IP2K_PAGE3: howto manager. (line 1270) -* BFD_RELOC_IP2K_PC_SKIP: howto manager. (line 1282) -* BFD_RELOC_IP2K_TEXT: howto manager. (line 1285) -* BFD_RELOC_IQ2000_OFFSET_16: howto manager. (line 1608) -* BFD_RELOC_IQ2000_OFFSET_21: howto manager. (line 1609) -* BFD_RELOC_IQ2000_UHI16: howto manager. (line 1610) -* BFD_RELOC_LO10: howto manager. (line 102) -* BFD_RELOC_LO16: howto manager. (line 298) -* BFD_RELOC_LO16_BASEREL: howto manager. (line 81) -* BFD_RELOC_LO16_GOTOFF: howto manager. (line 56) -* BFD_RELOC_LO16_PLTOFF: howto manager. (line 68) -* BFD_RELOC_M32R_10_PCREL: howto manager. (line 836) -* BFD_RELOC_M32R_18_PCREL: howto manager. (line 840) -* BFD_RELOC_M32R_24: howto manager. (line 832) -* BFD_RELOC_M32R_26_PCREL: howto manager. (line 843) -* BFD_RELOC_M32R_26_PLTREL: howto manager. (line 862) -* BFD_RELOC_M32R_COPY: howto manager. (line 863) -* BFD_RELOC_M32R_GLOB_DAT: howto manager. (line 864) -* BFD_RELOC_M32R_GOT16_HI_SLO: howto manager. (line 873) -* BFD_RELOC_M32R_GOT16_HI_ULO: howto manager. (line 872) -* BFD_RELOC_M32R_GOT16_LO: howto manager. (line 874) -* BFD_RELOC_M32R_GOT24: howto manager. (line 861) -* BFD_RELOC_M32R_GOTOFF: howto manager. (line 867) -* BFD_RELOC_M32R_GOTOFF_HI_SLO: howto manager. (line 869) -* BFD_RELOC_M32R_GOTOFF_HI_ULO: howto manager. (line 868) -* BFD_RELOC_M32R_GOTOFF_LO: howto manager. (line 870) -* BFD_RELOC_M32R_GOTPC24: howto manager. (line 871) -* BFD_RELOC_M32R_GOTPC_HI_SLO: howto manager. (line 876) -* BFD_RELOC_M32R_GOTPC_HI_ULO: howto manager. (line 875) -* BFD_RELOC_M32R_GOTPC_LO: howto manager. (line 877) -* BFD_RELOC_M32R_HI16_SLO: howto manager. (line 850) -* BFD_RELOC_M32R_HI16_ULO: howto manager. (line 846) -* BFD_RELOC_M32R_JMP_SLOT: howto manager. (line 865) -* BFD_RELOC_M32R_LO16: howto manager. (line 854) -* BFD_RELOC_M32R_RELATIVE: howto manager. (line 866) -* BFD_RELOC_M32R_SDA16: howto manager. (line 857) -* BFD_RELOC_M68HC11_24: howto manager. (line 1429) -* BFD_RELOC_M68HC11_3B: howto manager. (line 1404) -* BFD_RELOC_M68HC11_HI8: howto manager. (line 1396) -* BFD_RELOC_M68HC11_LO16: howto manager. (line 1418) -* BFD_RELOC_M68HC11_LO8: howto manager. (line 1400) -* BFD_RELOC_M68HC11_PAGE: howto manager. (line 1424) -* BFD_RELOC_M68HC11_RL_GROUP: howto manager. (line 1413) -* BFD_RELOC_M68HC11_RL_JUMP: howto manager. (line 1407) -* BFD_RELOC_M68HC12_5B: howto manager. (line 1435) -* BFD_RELOC_MCORE_PCREL_32: howto manager. (line 1017) -* BFD_RELOC_MCORE_PCREL_IMM11BY2: howto manager. (line 1015) -* BFD_RELOC_MCORE_PCREL_IMM4BY2: howto manager. (line 1016) -* BFD_RELOC_MCORE_PCREL_IMM8BY4: howto manager. (line 1014) -* BFD_RELOC_MCORE_PCREL_JSR_IMM11BY2: howto manager. (line 1018) -* BFD_RELOC_MCORE_RVA: howto manager. (line 1019) -* BFD_RELOC_MIPS16_GPREL: howto manager. (line 286) -* BFD_RELOC_MIPS16_HI16: howto manager. (line 301) -* BFD_RELOC_MIPS16_HI16_S: howto manager. (line 304) -* BFD_RELOC_MIPS16_JMP: howto manager. (line 283) -* BFD_RELOC_MIPS16_LO16: howto manager. (line 310) -* BFD_RELOC_MIPS_CALL16: howto manager. (line 317) -* BFD_RELOC_MIPS_CALL_HI16: howto manager. (line 320) -* BFD_RELOC_MIPS_CALL_LO16: howto manager. (line 321) -* BFD_RELOC_MIPS_DELETE: howto manager. (line 330) -* BFD_RELOC_MIPS_GOT16: howto manager. (line 316) -* BFD_RELOC_MIPS_GOT_DISP: howto manager. (line 325) -* BFD_RELOC_MIPS_GOT_HI16: howto manager. (line 318) -* BFD_RELOC_MIPS_GOT_LO16: howto manager. (line 319) -* BFD_RELOC_MIPS_GOT_OFST: howto manager. (line 324) -* BFD_RELOC_MIPS_GOT_PAGE: howto manager. (line 323) -* BFD_RELOC_MIPS_HIGHER: howto manager. (line 332) -* BFD_RELOC_MIPS_HIGHEST: howto manager. (line 331) -* BFD_RELOC_MIPS_INSERT_A: howto manager. (line 328) -* BFD_RELOC_MIPS_INSERT_B: howto manager. (line 329) -* BFD_RELOC_MIPS_JALR: howto manager. (line 336) -* BFD_RELOC_MIPS_JMP: howto manager. (line 279) -* BFD_RELOC_MIPS_LITERAL: howto manager. (line 313) -* BFD_RELOC_MIPS_REL16: howto manager. (line 334) -* BFD_RELOC_MIPS_RELGOT: howto manager. (line 335) -* BFD_RELOC_MIPS_SCN_DISP: howto manager. (line 333) -* BFD_RELOC_MIPS_SHIFT5: howto manager. (line 326) -* BFD_RELOC_MIPS_SHIFT6: howto manager. (line 327) -* BFD_RELOC_MIPS_SUB: howto manager. (line 322) -* BFD_RELOC_MIPS_TLS_DTPMOD32: howto manager. (line 337) -* BFD_RELOC_MIPS_TLS_DTPMOD64: howto manager. (line 339) -* BFD_RELOC_MIPS_TLS_DTPREL32: howto manager. (line 338) -* BFD_RELOC_MIPS_TLS_DTPREL64: howto manager. (line 340) -* BFD_RELOC_MIPS_TLS_DTPREL_HI16: howto manager. (line 343) -* BFD_RELOC_MIPS_TLS_DTPREL_LO16: howto manager. (line 344) -* BFD_RELOC_MIPS_TLS_GD: howto manager. (line 341) -* BFD_RELOC_MIPS_TLS_GOTTPREL: howto manager. (line 345) -* BFD_RELOC_MIPS_TLS_LDM: howto manager. (line 342) -* BFD_RELOC_MIPS_TLS_TPREL32: howto manager. (line 346) -* BFD_RELOC_MIPS_TLS_TPREL64: howto manager. (line 347) -* BFD_RELOC_MIPS_TLS_TPREL_HI16: howto manager. (line 348) -* BFD_RELOC_MIPS_TLS_TPREL_LO16: howto manager. (line 349) -* BFD_RELOC_MMIX_ADDR19: howto manager. (line 1048) -* BFD_RELOC_MMIX_ADDR27: howto manager. (line 1052) -* BFD_RELOC_MMIX_BASE_PLUS_OFFSET: howto manager. (line 1064) -* BFD_RELOC_MMIX_CBRANCH: howto manager. (line 1028) -* BFD_RELOC_MMIX_CBRANCH_1: howto manager. (line 1030) -* BFD_RELOC_MMIX_CBRANCH_2: howto manager. (line 1031) -* BFD_RELOC_MMIX_CBRANCH_3: howto manager. (line 1032) -* BFD_RELOC_MMIX_CBRANCH_J: howto manager. (line 1029) -* BFD_RELOC_MMIX_GETA: howto manager. (line 1022) -* BFD_RELOC_MMIX_GETA_1: howto manager. (line 1023) -* BFD_RELOC_MMIX_GETA_2: howto manager. (line 1024) -* BFD_RELOC_MMIX_GETA_3: howto manager. (line 1025) -* BFD_RELOC_MMIX_JMP: howto manager. (line 1042) -* BFD_RELOC_MMIX_JMP_1: howto manager. (line 1043) -* BFD_RELOC_MMIX_JMP_2: howto manager. (line 1044) -* BFD_RELOC_MMIX_JMP_3: howto manager. (line 1045) -* BFD_RELOC_MMIX_LOCAL: howto manager. (line 1068) -* BFD_RELOC_MMIX_PUSHJ: howto manager. (line 1035) -* BFD_RELOC_MMIX_PUSHJ_1: howto manager. (line 1036) -* BFD_RELOC_MMIX_PUSHJ_2: howto manager. (line 1037) -* BFD_RELOC_MMIX_PUSHJ_3: howto manager. (line 1038) -* BFD_RELOC_MMIX_PUSHJ_STUBBABLE: howto manager. (line 1039) -* BFD_RELOC_MMIX_REG: howto manager. (line 1060) -* BFD_RELOC_MMIX_REG_OR_BYTE: howto manager. (line 1056) -* BFD_RELOC_MN10300_16_PCREL: howto manager. (line 952) -* BFD_RELOC_MN10300_32_PCREL: howto manager. (line 948) -* BFD_RELOC_MN10300_COPY: howto manager. (line 408) -* BFD_RELOC_MN10300_GLOB_DAT: howto manager. (line 411) -* BFD_RELOC_MN10300_GOT16: howto manager. (line 404) -* BFD_RELOC_MN10300_GOT24: howto manager. (line 400) -* BFD_RELOC_MN10300_GOT32: howto manager. (line 396) -* BFD_RELOC_MN10300_GOTOFF24: howto manager. (line 393) -* BFD_RELOC_MN10300_JMP_SLOT: howto manager. (line 414) -* BFD_RELOC_MN10300_RELATIVE: howto manager. (line 417) -* BFD_RELOC_MSP430_10_PCREL: howto manager. (line 1599) -* BFD_RELOC_MSP430_16: howto manager. (line 1601) -* BFD_RELOC_MSP430_16_BYTE: howto manager. (line 1603) -* BFD_RELOC_MSP430_16_PCREL: howto manager. (line 1600) -* BFD_RELOC_MSP430_16_PCREL_BYTE: howto manager. (line 1602) -* BFD_RELOC_MSP430_2X_PCREL: howto manager. (line 1604) -* BFD_RELOC_MSP430_RL_PCREL: howto manager. (line 1605) -* BFD_RELOC_NONE: howto manager. (line 116) -* BFD_RELOC_NS32K_DISP_16: howto manager. (line 467) -* BFD_RELOC_NS32K_DISP_16_PCREL: howto manager. (line 470) -* BFD_RELOC_NS32K_DISP_32: howto manager. (line 468) -* BFD_RELOC_NS32K_DISP_32_PCREL: howto manager. (line 471) -* BFD_RELOC_NS32K_DISP_8: howto manager. (line 466) -* BFD_RELOC_NS32K_DISP_8_PCREL: howto manager. (line 469) -* BFD_RELOC_NS32K_IMM_16: howto manager. (line 461) -* BFD_RELOC_NS32K_IMM_16_PCREL: howto manager. (line 464) -* BFD_RELOC_NS32K_IMM_32: howto manager. (line 462) -* BFD_RELOC_NS32K_IMM_32_PCREL: howto manager. (line 465) -* BFD_RELOC_NS32K_IMM_8: howto manager. (line 460) -* BFD_RELOC_NS32K_IMM_8_PCREL: howto manager. (line 463) -* BFD_RELOC_OPENRISC_ABS_26: howto manager. (line 1577) -* BFD_RELOC_OPENRISC_REL_26: howto manager. (line 1578) -* BFD_RELOC_PDP11_DISP_6_PCREL: howto manager. (line 475) -* BFD_RELOC_PDP11_DISP_8_PCREL: howto manager. (line 474) -* BFD_RELOC_PJ_CODE_DIR16: howto manager. (line 480) -* BFD_RELOC_PJ_CODE_DIR32: howto manager. (line 481) -* BFD_RELOC_PJ_CODE_HI16: howto manager. (line 478) -* BFD_RELOC_PJ_CODE_LO16: howto manager. (line 479) -* BFD_RELOC_PJ_CODE_REL16: howto manager. (line 482) -* BFD_RELOC_PJ_CODE_REL32: howto manager. (line 483) -* BFD_RELOC_PPC64_ADDR16_DS: howto manager. (line 528) -* BFD_RELOC_PPC64_ADDR16_LO_DS: howto manager. (line 529) -* BFD_RELOC_PPC64_DTPREL16_DS: howto manager. (line 575) -* BFD_RELOC_PPC64_DTPREL16_HIGHER: howto manager. (line 577) -* BFD_RELOC_PPC64_DTPREL16_HIGHERA: howto manager. (line 578) -* BFD_RELOC_PPC64_DTPREL16_HIGHEST: howto manager. (line 579) -* BFD_RELOC_PPC64_DTPREL16_HIGHESTA: howto manager. (line 580) -* BFD_RELOC_PPC64_DTPREL16_LO_DS: howto manager. (line 576) -* BFD_RELOC_PPC64_GOT16_DS: howto manager. (line 530) -* BFD_RELOC_PPC64_GOT16_LO_DS: howto manager. (line 531) -* BFD_RELOC_PPC64_HIGHER: howto manager. (line 516) -* BFD_RELOC_PPC64_HIGHER_S: howto manager. (line 517) -* BFD_RELOC_PPC64_HIGHEST: howto manager. (line 518) -* BFD_RELOC_PPC64_HIGHEST_S: howto manager. (line 519) -* BFD_RELOC_PPC64_PLT16_LO_DS: howto manager. (line 532) -* BFD_RELOC_PPC64_PLTGOT16: howto manager. (line 524) -* BFD_RELOC_PPC64_PLTGOT16_DS: howto manager. (line 537) -* BFD_RELOC_PPC64_PLTGOT16_HA: howto manager. (line 527) -* BFD_RELOC_PPC64_PLTGOT16_HI: howto manager. (line 526) -* BFD_RELOC_PPC64_PLTGOT16_LO: howto manager. (line 525) -* BFD_RELOC_PPC64_PLTGOT16_LO_DS: howto manager. (line 538) -* BFD_RELOC_PPC64_SECTOFF_DS: howto manager. (line 533) -* BFD_RELOC_PPC64_SECTOFF_LO_DS: howto manager. (line 534) -* BFD_RELOC_PPC64_TOC: howto manager. (line 523) -* BFD_RELOC_PPC64_TOC16_DS: howto manager. (line 535) -* BFD_RELOC_PPC64_TOC16_HA: howto manager. (line 522) -* BFD_RELOC_PPC64_TOC16_HI: howto manager. (line 521) -* BFD_RELOC_PPC64_TOC16_LO: howto manager. (line 520) -* BFD_RELOC_PPC64_TOC16_LO_DS: howto manager. (line 536) -* BFD_RELOC_PPC64_TPREL16_DS: howto manager. (line 569) -* BFD_RELOC_PPC64_TPREL16_HIGHER: howto manager. (line 571) -* BFD_RELOC_PPC64_TPREL16_HIGHERA: howto manager. (line 572) -* BFD_RELOC_PPC64_TPREL16_HIGHEST: howto manager. (line 573) -* BFD_RELOC_PPC64_TPREL16_HIGHESTA: howto manager. (line 574) -* BFD_RELOC_PPC64_TPREL16_LO_DS: howto manager. (line 570) -* BFD_RELOC_PPC_B16: howto manager. (line 489) -* BFD_RELOC_PPC_B16_BRNTAKEN: howto manager. (line 491) -* BFD_RELOC_PPC_B16_BRTAKEN: howto manager. (line 490) -* BFD_RELOC_PPC_B26: howto manager. (line 486) -* BFD_RELOC_PPC_BA16: howto manager. (line 492) -* BFD_RELOC_PPC_BA16_BRNTAKEN: howto manager. (line 494) -* BFD_RELOC_PPC_BA16_BRTAKEN: howto manager. (line 493) -* BFD_RELOC_PPC_BA26: howto manager. (line 487) -* BFD_RELOC_PPC_COPY: howto manager. (line 495) -* BFD_RELOC_PPC_DTPMOD: howto manager. (line 542) -* BFD_RELOC_PPC_DTPREL: howto manager. (line 552) -* BFD_RELOC_PPC_DTPREL16: howto manager. (line 548) -* BFD_RELOC_PPC_DTPREL16_HA: howto manager. (line 551) -* BFD_RELOC_PPC_DTPREL16_HI: howto manager. (line 550) -* BFD_RELOC_PPC_DTPREL16_LO: howto manager. (line 549) -* BFD_RELOC_PPC_EMB_BIT_FLD: howto manager. (line 514) -* BFD_RELOC_PPC_EMB_MRKREF: howto manager. (line 509) -* BFD_RELOC_PPC_EMB_NADDR16: howto manager. (line 501) -* BFD_RELOC_PPC_EMB_NADDR16_HA: howto manager. (line 504) -* BFD_RELOC_PPC_EMB_NADDR16_HI: howto manager. (line 503) -* BFD_RELOC_PPC_EMB_NADDR16_LO: howto manager. (line 502) -* BFD_RELOC_PPC_EMB_NADDR32: howto manager. (line 500) -* BFD_RELOC_PPC_EMB_RELSDA: howto manager. (line 515) -* BFD_RELOC_PPC_EMB_RELSEC16: howto manager. (line 510) -* BFD_RELOC_PPC_EMB_RELST_HA: howto manager. (line 513) -* BFD_RELOC_PPC_EMB_RELST_HI: howto manager. (line 512) -* BFD_RELOC_PPC_EMB_RELST_LO: howto manager. (line 511) -* BFD_RELOC_PPC_EMB_SDA21: howto manager. (line 508) -* BFD_RELOC_PPC_EMB_SDA2I16: howto manager. (line 506) -* BFD_RELOC_PPC_EMB_SDA2REL: howto manager. (line 507) -* BFD_RELOC_PPC_EMB_SDAI16: howto manager. (line 505) -* BFD_RELOC_PPC_GLOB_DAT: howto manager. (line 496) -* BFD_RELOC_PPC_GOT_DTPREL16: howto manager. (line 565) -* BFD_RELOC_PPC_GOT_DTPREL16_HA: howto manager. (line 568) -* BFD_RELOC_PPC_GOT_DTPREL16_HI: howto manager. (line 567) -* BFD_RELOC_PPC_GOT_DTPREL16_LO: howto manager. (line 566) -* BFD_RELOC_PPC_GOT_TLSGD16: howto manager. (line 553) -* BFD_RELOC_PPC_GOT_TLSGD16_HA: howto manager. (line 556) -* BFD_RELOC_PPC_GOT_TLSGD16_HI: howto manager. (line 555) -* BFD_RELOC_PPC_GOT_TLSGD16_LO: howto manager. (line 554) -* BFD_RELOC_PPC_GOT_TLSLD16: howto manager. (line 557) -* BFD_RELOC_PPC_GOT_TLSLD16_HA: howto manager. (line 560) -* BFD_RELOC_PPC_GOT_TLSLD16_HI: howto manager. (line 559) -* BFD_RELOC_PPC_GOT_TLSLD16_LO: howto manager. (line 558) -* BFD_RELOC_PPC_GOT_TPREL16: howto manager. (line 561) -* BFD_RELOC_PPC_GOT_TPREL16_HA: howto manager. (line 564) -* BFD_RELOC_PPC_GOT_TPREL16_HI: howto manager. (line 563) -* BFD_RELOC_PPC_GOT_TPREL16_LO: howto manager. (line 562) -* BFD_RELOC_PPC_JMP_SLOT: howto manager. (line 497) -* BFD_RELOC_PPC_LOCAL24PC: howto manager. (line 499) -* BFD_RELOC_PPC_RELATIVE: howto manager. (line 498) -* BFD_RELOC_PPC_TLS: howto manager. (line 541) -* BFD_RELOC_PPC_TOC16: howto manager. (line 488) -* BFD_RELOC_PPC_TPREL: howto manager. (line 547) -* BFD_RELOC_PPC_TPREL16: howto manager. (line 543) -* BFD_RELOC_PPC_TPREL16_HA: howto manager. (line 546) -* BFD_RELOC_PPC_TPREL16_HI: howto manager. (line 545) -* BFD_RELOC_PPC_TPREL16_LO: howto manager. (line 544) -* BFD_RELOC_RVA: howto manager. (line 85) -* BFD_RELOC_SH_ALIGN: howto manager. (line 677) -* BFD_RELOC_SH_CODE: howto manager. (line 678) -* BFD_RELOC_SH_COPY: howto manager. (line 683) -* BFD_RELOC_SH_COPY64: howto manager. (line 708) -* BFD_RELOC_SH_COUNT: howto manager. (line 676) -* BFD_RELOC_SH_DATA: howto manager. (line 679) -* BFD_RELOC_SH_DISP12: howto manager. (line 659) -* BFD_RELOC_SH_DISP12BY2: howto manager. (line 660) -* BFD_RELOC_SH_DISP12BY4: howto manager. (line 661) -* BFD_RELOC_SH_DISP12BY8: howto manager. (line 662) -* BFD_RELOC_SH_DISP20: howto manager. (line 663) -* BFD_RELOC_SH_DISP20BY8: howto manager. (line 664) -* BFD_RELOC_SH_GLOB_DAT: howto manager. (line 684) -* BFD_RELOC_SH_GLOB_DAT64: howto manager. (line 709) -* BFD_RELOC_SH_GOT10BY4: howto manager. (line 712) -* BFD_RELOC_SH_GOT10BY8: howto manager. (line 713) -* BFD_RELOC_SH_GOT_HI16: howto manager. (line 691) -* BFD_RELOC_SH_GOT_LOW16: howto manager. (line 688) -* BFD_RELOC_SH_GOT_MEDHI16: howto manager. (line 690) -* BFD_RELOC_SH_GOT_MEDLOW16: howto manager. (line 689) -* BFD_RELOC_SH_GOTOFF_HI16: howto manager. (line 703) -* BFD_RELOC_SH_GOTOFF_LOW16: howto manager. (line 700) -* BFD_RELOC_SH_GOTOFF_MEDHI16: howto manager. (line 702) -* BFD_RELOC_SH_GOTOFF_MEDLOW16: howto manager. (line 701) -* BFD_RELOC_SH_GOTPC: howto manager. (line 687) -* BFD_RELOC_SH_GOTPC_HI16: howto manager. (line 707) -* BFD_RELOC_SH_GOTPC_LOW16: howto manager. (line 704) -* BFD_RELOC_SH_GOTPC_MEDHI16: howto manager. (line 706) -* BFD_RELOC_SH_GOTPC_MEDLOW16: howto manager. (line 705) -* BFD_RELOC_SH_GOTPLT10BY4: howto manager. (line 714) -* BFD_RELOC_SH_GOTPLT10BY8: howto manager. (line 715) -* BFD_RELOC_SH_GOTPLT32: howto manager. (line 716) -* BFD_RELOC_SH_GOTPLT_HI16: howto manager. (line 695) -* BFD_RELOC_SH_GOTPLT_LOW16: howto manager. (line 692) -* BFD_RELOC_SH_GOTPLT_MEDHI16: howto manager. (line 694) -* BFD_RELOC_SH_GOTPLT_MEDLOW16: howto manager. (line 693) -* BFD_RELOC_SH_IMM3: howto manager. (line 657) -* BFD_RELOC_SH_IMM3U: howto manager. (line 658) -* BFD_RELOC_SH_IMM4: howto manager. (line 665) -* BFD_RELOC_SH_IMM4BY2: howto manager. (line 666) -* BFD_RELOC_SH_IMM4BY4: howto manager. (line 667) -* BFD_RELOC_SH_IMM8: howto manager. (line 668) -* BFD_RELOC_SH_IMM8BY2: howto manager. (line 669) -* BFD_RELOC_SH_IMM8BY4: howto manager. (line 670) -* BFD_RELOC_SH_IMM_HI16: howto manager. (line 734) -* BFD_RELOC_SH_IMM_HI16_PCREL: howto manager. (line 735) -* BFD_RELOC_SH_IMM_LOW16: howto manager. (line 728) -* BFD_RELOC_SH_IMM_LOW16_PCREL: howto manager. (line 729) -* BFD_RELOC_SH_IMM_MEDHI16: howto manager. (line 732) -* BFD_RELOC_SH_IMM_MEDHI16_PCREL: howto manager. (line 733) -* BFD_RELOC_SH_IMM_MEDLOW16: howto manager. (line 730) -* BFD_RELOC_SH_IMM_MEDLOW16_PCREL: howto manager. (line 731) -* BFD_RELOC_SH_IMMS10: howto manager. (line 722) -* BFD_RELOC_SH_IMMS10BY2: howto manager. (line 723) -* BFD_RELOC_SH_IMMS10BY4: howto manager. (line 724) -* BFD_RELOC_SH_IMMS10BY8: howto manager. (line 725) -* BFD_RELOC_SH_IMMS16: howto manager. (line 726) -* BFD_RELOC_SH_IMMS6: howto manager. (line 719) -* BFD_RELOC_SH_IMMS6BY32: howto manager. (line 720) -* BFD_RELOC_SH_IMMU16: howto manager. (line 727) -* BFD_RELOC_SH_IMMU5: howto manager. (line 718) -* BFD_RELOC_SH_IMMU6: howto manager. (line 721) -* BFD_RELOC_SH_JMP_SLOT: howto manager. (line 685) -* BFD_RELOC_SH_JMP_SLOT64: howto manager. (line 710) -* BFD_RELOC_SH_LABEL: howto manager. (line 680) -* BFD_RELOC_SH_LOOP_END: howto manager. (line 682) -* BFD_RELOC_SH_LOOP_START: howto manager. (line 681) -* BFD_RELOC_SH_PCDISP12BY2: howto manager. (line 656) -* BFD_RELOC_SH_PCDISP8BY2: howto manager. (line 655) -* BFD_RELOC_SH_PCRELIMM8BY2: howto manager. (line 671) -* BFD_RELOC_SH_PCRELIMM8BY4: howto manager. (line 672) -* BFD_RELOC_SH_PLT_HI16: howto manager. (line 699) -* BFD_RELOC_SH_PLT_LOW16: howto manager. (line 696) -* BFD_RELOC_SH_PLT_MEDHI16: howto manager. (line 698) -* BFD_RELOC_SH_PLT_MEDLOW16: howto manager. (line 697) -* BFD_RELOC_SH_PT_16: howto manager. (line 736) -* BFD_RELOC_SH_RELATIVE: howto manager. (line 686) -* BFD_RELOC_SH_RELATIVE64: howto manager. (line 711) -* BFD_RELOC_SH_SHMEDIA_CODE: howto manager. (line 717) -* BFD_RELOC_SH_SWITCH16: howto manager. (line 673) -* BFD_RELOC_SH_SWITCH32: howto manager. (line 674) -* BFD_RELOC_SH_TLS_DTPMOD32: howto manager. (line 742) -* BFD_RELOC_SH_TLS_DTPOFF32: howto manager. (line 743) -* BFD_RELOC_SH_TLS_GD_32: howto manager. (line 737) -* BFD_RELOC_SH_TLS_IE_32: howto manager. (line 740) -* BFD_RELOC_SH_TLS_LD_32: howto manager. (line 738) -* BFD_RELOC_SH_TLS_LDO_32: howto manager. (line 739) -* BFD_RELOC_SH_TLS_LE_32: howto manager. (line 741) -* BFD_RELOC_SH_TLS_TPOFF32: howto manager. (line 744) -* BFD_RELOC_SH_USES: howto manager. (line 675) -* BFD_RELOC_SPARC13: howto manager. (line 119) -* BFD_RELOC_SPARC22: howto manager. (line 118) -* BFD_RELOC_SPARC_10: howto manager. (line 141) -* BFD_RELOC_SPARC_11: howto manager. (line 142) -* BFD_RELOC_SPARC_5: howto manager. (line 154) -* BFD_RELOC_SPARC_6: howto manager. (line 153) -* BFD_RELOC_SPARC_64: howto manager. (line 140) -* BFD_RELOC_SPARC_7: howto manager. (line 152) -* BFD_RELOC_SPARC_BASE13: howto manager. (line 136) -* BFD_RELOC_SPARC_BASE22: howto manager. (line 137) -* BFD_RELOC_SPARC_COPY: howto manager. (line 126) -* BFD_RELOC_SPARC_DISP64: howto manager. (line 155) -* BFD_RELOC_SPARC_GLOB_DAT: howto manager. (line 127) -* BFD_RELOC_SPARC_GOT10: howto manager. (line 120) -* BFD_RELOC_SPARC_GOT13: howto manager. (line 121) -* BFD_RELOC_SPARC_GOT22: howto manager. (line 122) -* BFD_RELOC_SPARC_H44: howto manager. (line 160) -* BFD_RELOC_SPARC_HH22: howto manager. (line 144) -* BFD_RELOC_SPARC_HIX22: howto manager. (line 158) -* BFD_RELOC_SPARC_HM10: howto manager. (line 145) -* BFD_RELOC_SPARC_JMP_SLOT: howto manager. (line 128) -* BFD_RELOC_SPARC_L44: howto manager. (line 162) -* BFD_RELOC_SPARC_LM22: howto manager. (line 146) -* BFD_RELOC_SPARC_LOX10: howto manager. (line 159) -* BFD_RELOC_SPARC_M44: howto manager. (line 161) -* BFD_RELOC_SPARC_OLO10: howto manager. (line 143) -* BFD_RELOC_SPARC_PC10: howto manager. (line 123) -* BFD_RELOC_SPARC_PC22: howto manager. (line 124) -* BFD_RELOC_SPARC_PC_HH22: howto manager. (line 147) -* BFD_RELOC_SPARC_PC_HM10: howto manager. (line 148) -* BFD_RELOC_SPARC_PC_LM22: howto manager. (line 149) -* BFD_RELOC_SPARC_PLT32: howto manager. (line 156) -* BFD_RELOC_SPARC_PLT64: howto manager. (line 157) -* BFD_RELOC_SPARC_REGISTER: howto manager. (line 163) -* BFD_RELOC_SPARC_RELATIVE: howto manager. (line 129) -* BFD_RELOC_SPARC_REV32: howto manager. (line 166) -* BFD_RELOC_SPARC_TLS_DTPMOD32: howto manager. (line 187) -* BFD_RELOC_SPARC_TLS_DTPMOD64: howto manager. (line 188) -* BFD_RELOC_SPARC_TLS_DTPOFF32: howto manager. (line 189) -* BFD_RELOC_SPARC_TLS_DTPOFF64: howto manager. (line 190) -* BFD_RELOC_SPARC_TLS_GD_ADD: howto manager. (line 171) -* BFD_RELOC_SPARC_TLS_GD_CALL: howto manager. (line 172) -* BFD_RELOC_SPARC_TLS_GD_HI22: howto manager. (line 169) -* BFD_RELOC_SPARC_TLS_GD_LO10: howto manager. (line 170) -* BFD_RELOC_SPARC_TLS_IE_ADD: howto manager. (line 184) -* BFD_RELOC_SPARC_TLS_IE_HI22: howto manager. (line 180) -* BFD_RELOC_SPARC_TLS_IE_LD: howto manager. (line 182) -* BFD_RELOC_SPARC_TLS_IE_LDX: howto manager. (line 183) -* BFD_RELOC_SPARC_TLS_IE_LO10: howto manager. (line 181) -* BFD_RELOC_SPARC_TLS_LDM_ADD: howto manager. (line 175) -* BFD_RELOC_SPARC_TLS_LDM_CALL: howto manager. (line 176) -* BFD_RELOC_SPARC_TLS_LDM_HI22: howto manager. (line 173) -* BFD_RELOC_SPARC_TLS_LDM_LO10: howto manager. (line 174) -* BFD_RELOC_SPARC_TLS_LDO_ADD: howto manager. (line 179) -* BFD_RELOC_SPARC_TLS_LDO_HIX22: howto manager. (line 177) -* BFD_RELOC_SPARC_TLS_LDO_LOX10: howto manager. (line 178) -* BFD_RELOC_SPARC_TLS_LE_HIX22: howto manager. (line 185) -* BFD_RELOC_SPARC_TLS_LE_LOX10: howto manager. (line 186) -* BFD_RELOC_SPARC_TLS_TPOFF32: howto manager. (line 191) -* BFD_RELOC_SPARC_TLS_TPOFF64: howto manager. (line 192) -* BFD_RELOC_SPARC_UA16: howto manager. (line 130) -* BFD_RELOC_SPARC_UA32: howto manager. (line 131) -* BFD_RELOC_SPARC_UA64: howto manager. (line 132) -* BFD_RELOC_SPARC_WDISP16: howto manager. (line 150) -* BFD_RELOC_SPARC_WDISP19: howto manager. (line 151) -* BFD_RELOC_SPARC_WDISP22: howto manager. (line 117) -* BFD_RELOC_SPARC_WPLT30: howto manager. (line 125) -* BFD_RELOC_THUMB_PCREL_BLX: howto manager. (line 601) -* BFD_RELOC_THUMB_PCREL_BRANCH12: howto manager. (line 749) -* BFD_RELOC_THUMB_PCREL_BRANCH23: howto manager. (line 750) -* BFD_RELOC_THUMB_PCREL_BRANCH9: howto manager. (line 748) -* BFD_RELOC_TIC30_LDP: howto manager. (line 956) -* BFD_RELOC_TIC54X_16_OF_23: howto manager. (line 974) -* BFD_RELOC_TIC54X_23: howto manager. (line 971) -* BFD_RELOC_TIC54X_MS7_OF_23: howto manager. (line 979) -* BFD_RELOC_TIC54X_PARTLS7: howto manager. (line 961) -* BFD_RELOC_TIC54X_PARTMS9: howto manager. (line 966) -* bfd_reloc_type_lookup: howto manager. (line 1693) -* BFD_RELOC_V850_22_PCREL: howto manager. (line 883) -* BFD_RELOC_V850_9_PCREL: howto manager. (line 880) -* BFD_RELOC_V850_ALIGN: howto manager. (line 941) -* BFD_RELOC_V850_CALLT_16_16_OFFSET: howto manager. (line 932) -* BFD_RELOC_V850_CALLT_6_7_OFFSET: howto manager. (line 929) -* BFD_RELOC_V850_LO16_SPLIT_OFFSET: howto manager. (line 944) -* BFD_RELOC_V850_LONGCALL: howto manager. (line 935) -* BFD_RELOC_V850_LONGJUMP: howto manager. (line 938) -* BFD_RELOC_V850_SDA_15_16_OFFSET: howto manager. (line 889) -* BFD_RELOC_V850_SDA_16_16_OFFSET: howto manager. (line 886) -* BFD_RELOC_V850_SDA_16_16_SPLIT_OFFSET: howto manager. (line 921) -* BFD_RELOC_V850_TDA_16_16_OFFSET: howto manager. (line 911) -* BFD_RELOC_V850_TDA_4_4_OFFSET: howto manager. (line 918) -* BFD_RELOC_V850_TDA_4_5_OFFSET: howto manager. (line 914) -* BFD_RELOC_V850_TDA_6_8_OFFSET: howto manager. (line 900) -* BFD_RELOC_V850_TDA_7_7_OFFSET: howto manager. (line 908) -* BFD_RELOC_V850_TDA_7_8_OFFSET: howto manager. (line 904) -* BFD_RELOC_V850_ZDA_15_16_OFFSET: howto manager. (line 896) -* BFD_RELOC_V850_ZDA_16_16_OFFSET: howto manager. (line 893) -* BFD_RELOC_V850_ZDA_16_16_SPLIT_OFFSET: howto manager. (line 925) -* BFD_RELOC_VAX_GLOB_DAT: howto manager. (line 1594) -* BFD_RELOC_VAX_JMP_SLOT: howto manager. (line 1595) -* BFD_RELOC_VAX_RELATIVE: howto manager. (line 1596) -* BFD_RELOC_VPE4KMATH_DATA: howto manager. (line 1291) -* BFD_RELOC_VPE4KMATH_INSN: howto manager. (line 1292) -* BFD_RELOC_VTABLE_ENTRY: howto manager. (line 1296) -* BFD_RELOC_VTABLE_INHERIT: howto manager. (line 1295) -* BFD_RELOC_X86_64_32S: howto manager. (line 449) -* BFD_RELOC_X86_64_COPY: howto manager. (line 444) -* BFD_RELOC_X86_64_DTPMOD64: howto manager. (line 450) -* BFD_RELOC_X86_64_DTPOFF32: howto manager. (line 455) -* BFD_RELOC_X86_64_DTPOFF64: howto manager. (line 451) -* BFD_RELOC_X86_64_GLOB_DAT: howto manager. (line 445) -* BFD_RELOC_X86_64_GOT32: howto manager. (line 442) -* BFD_RELOC_X86_64_GOTPCREL: howto manager. (line 448) -* BFD_RELOC_X86_64_GOTTPOFF: howto manager. (line 456) -* BFD_RELOC_X86_64_JUMP_SLOT: howto manager. (line 446) -* BFD_RELOC_X86_64_PLT32: howto manager. (line 443) -* BFD_RELOC_X86_64_RELATIVE: howto manager. (line 447) -* BFD_RELOC_X86_64_TLSGD: howto manager. (line 453) -* BFD_RELOC_X86_64_TLSLD: howto manager. (line 454) -* BFD_RELOC_X86_64_TPOFF32: howto manager. (line 457) -* BFD_RELOC_X86_64_TPOFF64: howto manager. (line 452) -* BFD_RELOC_XSTORMY16_12: howto manager. (line 1589) -* BFD_RELOC_XSTORMY16_24: howto manager. (line 1590) -* BFD_RELOC_XSTORMY16_FPTR16: howto manager. (line 1591) -* BFD_RELOC_XSTORMY16_REL_12: howto manager. (line 1588) -* BFD_RELOC_XTENSA_ASM_EXPAND: howto manager. (line 1682) -* BFD_RELOC_XTENSA_ASM_SIMPLIFY: howto manager. (line 1687) -* BFD_RELOC_XTENSA_DIFF16: howto manager. (line 1629) -* BFD_RELOC_XTENSA_DIFF32: howto manager. (line 1630) -* BFD_RELOC_XTENSA_DIFF8: howto manager. (line 1628) -* BFD_RELOC_XTENSA_GLOB_DAT: howto manager. (line 1618) -* BFD_RELOC_XTENSA_JMP_SLOT: howto manager. (line 1619) -* BFD_RELOC_XTENSA_OP0: howto manager. (line 1676) -* BFD_RELOC_XTENSA_OP1: howto manager. (line 1677) -* BFD_RELOC_XTENSA_OP2: howto manager. (line 1678) -* BFD_RELOC_XTENSA_PLT: howto manager. (line 1623) -* BFD_RELOC_XTENSA_RELATIVE: howto manager. (line 1620) -* BFD_RELOC_XTENSA_RTLD: howto manager. (line 1613) -* BFD_RELOC_XTENSA_SLOT0_ALT: howto manager. (line 1658) -* BFD_RELOC_XTENSA_SLOT0_OP: howto manager. (line 1638) -* BFD_RELOC_XTENSA_SLOT10_ALT: howto manager. (line 1668) -* BFD_RELOC_XTENSA_SLOT10_OP: howto manager. (line 1648) -* BFD_RELOC_XTENSA_SLOT11_ALT: howto manager. (line 1669) -* BFD_RELOC_XTENSA_SLOT11_OP: howto manager. (line 1649) -* BFD_RELOC_XTENSA_SLOT12_ALT: howto manager. (line 1670) -* BFD_RELOC_XTENSA_SLOT12_OP: howto manager. (line 1650) -* BFD_RELOC_XTENSA_SLOT13_ALT: howto manager. (line 1671) -* BFD_RELOC_XTENSA_SLOT13_OP: howto manager. (line 1651) -* BFD_RELOC_XTENSA_SLOT14_ALT: howto manager. (line 1672) -* BFD_RELOC_XTENSA_SLOT14_OP: howto manager. (line 1652) -* BFD_RELOC_XTENSA_SLOT1_ALT: howto manager. (line 1659) -* BFD_RELOC_XTENSA_SLOT1_OP: howto manager. (line 1639) -* BFD_RELOC_XTENSA_SLOT2_ALT: howto manager. (line 1660) -* BFD_RELOC_XTENSA_SLOT2_OP: howto manager. (line 1640) -* BFD_RELOC_XTENSA_SLOT3_ALT: howto manager. (line 1661) -* BFD_RELOC_XTENSA_SLOT3_OP: howto manager. (line 1641) -* BFD_RELOC_XTENSA_SLOT4_ALT: howto manager. (line 1662) -* BFD_RELOC_XTENSA_SLOT4_OP: howto manager. (line 1642) -* BFD_RELOC_XTENSA_SLOT5_ALT: howto manager. (line 1663) -* BFD_RELOC_XTENSA_SLOT5_OP: howto manager. (line 1643) -* BFD_RELOC_XTENSA_SLOT6_ALT: howto manager. (line 1664) -* BFD_RELOC_XTENSA_SLOT6_OP: howto manager. (line 1644) -* BFD_RELOC_XTENSA_SLOT7_ALT: howto manager. (line 1665) -* BFD_RELOC_XTENSA_SLOT7_OP: howto manager. (line 1645) -* BFD_RELOC_XTENSA_SLOT8_ALT: howto manager. (line 1666) -* BFD_RELOC_XTENSA_SLOT8_OP: howto manager. (line 1646) -* BFD_RELOC_XTENSA_SLOT9_ALT: howto manager. (line 1667) -* BFD_RELOC_XTENSA_SLOT9_OP: howto manager. (line 1647) -* bfd_scan_arch: Architectures. (line 369) -* bfd_scan_vma: BFD front end. (line 420) -* bfd_seach_for_target: bfd_target. (line 445) -* bfd_section_already_linked: Writing the symbol table. - (line 55) -* bfd_section_list_clear: section prototypes. (line 8) -* bfd_sections_find_if: section prototypes. (line 145) -* bfd_set_arch_info: Architectures. (line 410) -* bfd_set_archive_head: Archives. (line 66) -* bfd_set_default_target: bfd_target. (line 410) -* bfd_set_error: BFD front end. (line 235) -* bfd_set_error_handler: BFD front end. (line 275) -* bfd_set_error_program_name: BFD front end. (line 284) -* bfd_set_file_flags: BFD front end. (line 340) -* bfd_set_format: Formats. (line 65) -* bfd_set_gp_size: BFD front end. (line 410) -* bfd_set_private_flags: BFD front end. (line 487) -* bfd_set_reloc: BFD front end. (line 330) -* bfd_set_section_contents: section prototypes. (line 176) -* bfd_set_section_flags: section prototypes. (line 109) -* bfd_set_section_size: section prototypes. (line 162) -* bfd_set_start_address: BFD front end. (line 389) -* bfd_set_symtab: symbol handling functions. - (line 60) -* bfd_symbol_info: symbol handling functions. - (line 130) -* bfd_target_list: bfd_target. (line 436) -* bfd_write_bigendian_4byte_int: Internal. (line 10) -* bfd_zalloc: Opening and Closing. - (line 188) -* coff_symbol_type: coff. (line 186) -* core_file_matches_executable_p: Core Files. (line 27) -* find_separate_debug_file: Opening and Closing. - (line 230) -* get_debug_link_info: Opening and Closing. - (line 211) -* Hash tables: Hash Tables. (line 6) -* internal object-file format: Canonical format. (line 11) -* Linker: Linker Functions. (line 6) -* Other functions: BFD front end. (line 502) -* separate_debug_file_exists: Opening and Closing. - (line 221) -* struct bfd_iovec: BFD front end. (line 646) -* target vector (_bfd_final_link): Performing the Final Link. - (line 6) -* target vector (_bfd_link_add_symbols): Adding Symbols to the Hash Table. - (line 6) -* target vector (_bfd_link_hash_table_create): Creating a Linker Hash Table. - (line 6) -* The HOWTO Macro: typedef arelent. (line 290) -* what is it?: Overview. (line 6) - - +Indirect: +bfd.info-1: 724 +bfd.info-2: 298309 Tag Table: -Node: Top734 -Node: Overview1066 -Node: History2117 -Node: How It Works3063 -Node: What BFD Version 2 Can Do4605 -Node: BFD information loss5920 -Node: Canonical format8452 -Node: BFD front end12824 -Node: Memory Usage38051 -Node: Initialization39279 -Node: Sections39675 -Node: Section Input40158 -Node: Section Output41523 -Node: typedef asection44009 -Node: section prototypes61608 -Node: Symbols70591 -Node: Reading Symbols72186 -Node: Writing Symbols73293 -Node: Mini Symbols75002 -Node: typedef asymbol75976 -Node: symbol handling functions80894 -Node: Archives86236 -Node: Formats89913 -Node: Relocations92804 -Node: typedef arelent93531 -Node: howto manager109249 -Node: Core Files165422 -Node: Targets166501 -Node: bfd_target168471 -Node: Architectures187791 -Node: Opening and Closing208088 -Node: Internal217801 -Node: File Caching224073 -Node: Linker Functions227380 -Node: Creating a Linker Hash Table229053 -Node: Adding Symbols to the Hash Table230791 -Node: Differing file formats231691 -Node: Adding symbols from an object file233439 -Node: Adding symbols from an archive235590 -Node: Performing the Final Link238004 -Node: Information provided by the linker239246 -Node: Relocating the section contents240396 -Node: Writing the symbol table242147 -Node: Hash Tables245140 -Node: Creating and Freeing a Hash Table246338 -Node: Looking Up or Entering a String247588 -Node: Traversing a Hash Table248841 -Node: Deriving a New Hash Table Type249630 -Node: Define the Derived Structures250696 -Node: Write the Derived Creation Routine251777 -Node: Write Other Derived Routines254471 -Node: BFD back ends255786 -Node: What to Put Where256056 -Node: aout256194 -Node: coff262445 -Node: elf287121 -Node: mmo287975 -Node: File layout288903 -Node: Symbol-table294550 -Node: mmo section mapping298319 -Node: GNU Free Documentation License301971 -Node: Index321691 +(Indirect) +Node: Top724 +Node: Overview1056 +Node: History2107 +Node: How It Works3053 +Node: What BFD Version 2 Can Do4595 +Node: BFD information loss5910 +Node: Canonical format8442 +Node: BFD front end12814 +Node: Memory Usage38041 +Node: Initialization39269 +Node: Sections39665 +Node: Section Input40148 +Node: Section Output41513 +Node: typedef asection43999 +Node: section prototypes61598 +Node: Symbols70581 +Node: Reading Symbols72176 +Node: Writing Symbols73283 +Node: Mini Symbols74992 +Node: typedef asymbol75966 +Node: symbol handling functions80884 +Node: Archives86226 +Node: Formats89903 +Node: Relocations92794 +Node: typedef arelent93521 +Node: howto manager109239 +Node: Core Files165412 +Node: Targets166491 +Node: bfd_target168461 +Node: Architectures187781 +Node: Opening and Closing208078 +Node: Internal217791 +Node: File Caching224063 +Node: Linker Functions227370 +Node: Creating a Linker Hash Table229043 +Node: Adding Symbols to the Hash Table230781 +Node: Differing file formats231681 +Node: Adding symbols from an object file233429 +Node: Adding symbols from an archive235580 +Node: Performing the Final Link237994 +Node: Information provided by the linker239236 +Node: Relocating the section contents240386 +Node: Writing the symbol table242137 +Node: Hash Tables245130 +Node: Creating and Freeing a Hash Table246328 +Node: Looking Up or Entering a String247578 +Node: Traversing a Hash Table248831 +Node: Deriving a New Hash Table Type249620 +Node: Define the Derived Structures250686 +Node: Write the Derived Creation Routine251767 +Node: Write Other Derived Routines254461 +Node: BFD back ends255776 +Node: What to Put Where256046 +Node: aout256184 +Node: coff262435 +Node: elf287111 +Node: mmo287965 +Node: File layout288893 +Node: Symbol-table294540 +Node: mmo section mapping298309 +Node: GNU Free Documentation License301961 +Node: Index321681 End Tag Table diff --git a/bfd/doc/bfd.info-1 b/bfd/doc/bfd.info-1 new file mode 100644 index 0000000000..d6e8ba0f70 --- /dev/null +++ b/bfd/doc/bfd.info-1 @@ -0,0 +1,8006 @@ +This is ../.././bfd/doc/bfd.info, produced by makeinfo version 4.7 from +../.././bfd/doc/bfd.texinfo. + +START-INFO-DIR-ENTRY +* Bfd: (bfd). The Binary File Descriptor library. +END-INFO-DIR-ENTRY + + This file documents the BFD library. + + Copyright (C) 1991, 2000, 2001, 2003 Free Software Foundation, Inc. + + Permission is granted to copy, distribute and/or modify this document + under the terms of the GNU Free Documentation License, Version 1.1 + or any later version published by the Free Software Foundation; + with no Invariant Sections, with no Front-Cover Texts, and with no + Back-Cover Texts. A copy of the license is included in the +section entitled "GNU Free Documentation License". + + +File: bfd.info, Node: Top, Next: Overview, Prev: (dir), Up: (dir) + + This file documents the binary file descriptor library libbfd. + +* Menu: + +* Overview:: Overview of BFD +* BFD front end:: BFD front end +* BFD back ends:: BFD back ends +* GNU Free Documentation License:: GNU Free Documentation License +* Index:: Index + + +File: bfd.info, Node: Overview, Next: BFD front end, Prev: Top, Up: Top + +1 Introduction +************** + +BFD is a package which allows applications to use the same routines to +operate on object files whatever the object file format. A new object +file format can be supported simply by creating a new BFD back end and +adding it to the library. + + BFD is split into two parts: the front end, and the back ends (one +for each object file format). + * The front end of BFD provides the interface to the user. It manages + memory and various canonical data structures. The front end also + decides which back end to use and when to call back end routines. + + * The back ends provide BFD its view of the real world. Each back + end provides a set of calls which the BFD front end can use to + maintain its canonical form. The back ends also may keep around + information for their own use, for greater efficiency. + +* Menu: + +* History:: History +* How It Works:: How It Works +* What BFD Version 2 Can Do:: What BFD Version 2 Can Do + + +File: bfd.info, Node: History, Next: How It Works, Prev: Overview, Up: Overview + +1.1 History +=========== + +One spur behind BFD was the desire, on the part of the GNU 960 team at +Intel Oregon, for interoperability of applications on their COFF and +b.out file formats. Cygnus was providing GNU support for the team, and +was contracted to provide the required functionality. + + The name came from a conversation David Wallace was having with +Richard Stallman about the library: RMS said that it would be quite +hard--David said "BFD". Stallman was right, but the name stuck. + + At the same time, Ready Systems wanted much the same thing, but for +different object file formats: IEEE-695, Oasys, Srecords, a.out and 68k +coff. + + BFD was first implemented by members of Cygnus Support; Steve +Chamberlain (`sac@cygnus.com'), John Gilmore (`gnu@cygnus.com'), K. +Richard Pixley (`rich@cygnus.com') and David Henkel-Wallace +(`gumby@cygnus.com'). + + +File: bfd.info, Node: How It Works, Next: What BFD Version 2 Can Do, Prev: History, Up: Overview + +1.2 How To Use BFD +================== + +To use the library, include `bfd.h' and link with `libbfd.a'. + + BFD provides a common interface to the parts of an object file for a +calling application. + + When an application sucessfully opens a target file (object, +archive, or whatever), a pointer to an internal structure is returned. +This pointer points to a structure called `bfd', described in `bfd.h'. +Our convention is to call this pointer a BFD, and instances of it +within code `abfd'. All operations on the target object file are +applied as methods to the BFD. The mapping is defined within `bfd.h' +in a set of macros, all beginning with `bfd_' to reduce namespace +pollution. + + For example, this sequence does what you would probably expect: +return the number of sections in an object file attached to a BFD +`abfd'. + + #include "bfd.h" + + unsigned int number_of_sections (abfd) + bfd *abfd; + { + return bfd_count_sections (abfd); + } + + The abstraction used within BFD is that an object file has: + + * a header, + + * a number of sections containing raw data (*note Sections::), + + * a set of relocations (*note Relocations::), and + + * some symbol information (*note Symbols::). + Also, BFDs opened for archives have the additional attribute of an +index and contain subordinate BFDs. This approach is fine for a.out and +coff, but loses efficiency when applied to formats such as S-records and +IEEE-695. + + +File: bfd.info, Node: What BFD Version 2 Can Do, Prev: How It Works, Up: Overview + +1.3 What BFD Version 2 Can Do +============================= + +When an object file is opened, BFD subroutines automatically determine +the format of the input object file. They then build a descriptor in +memory with pointers to routines that will be used to access elements of +the object file's data structures. + + As different information from the object files is required, BFD +reads from different sections of the file and processes them. For +example, a very common operation for the linker is processing symbol +tables. Each BFD back end provides a routine for converting between +the object file's representation of symbols and an internal canonical +format. When the linker asks for the symbol table of an object file, it +calls through a memory pointer to the routine from the relevant BFD +back end which reads and converts the table into a canonical form. The +linker then operates upon the canonical form. When the link is finished +and the linker writes the output file's symbol table, another BFD back +end routine is called to take the newly created symbol table and +convert it into the chosen output format. + +* Menu: + +* BFD information loss:: Information Loss +* Canonical format:: The BFD canonical object-file format + + +File: bfd.info, Node: BFD information loss, Next: Canonical format, Up: What BFD Version 2 Can Do + +1.3.1 Information Loss +---------------------- + +_Information can be lost during output._ The output formats supported +by BFD do not provide identical facilities, and information which can +be described in one form has nowhere to go in another format. One +example of this is alignment information in `b.out'. There is nowhere +in an `a.out' format file to store alignment information on the +contained data, so when a file is linked from `b.out' and an `a.out' +image is produced, alignment information will not propagate to the +output file. (The linker will still use the alignment information +internally, so the link is performed correctly). + + Another example is COFF section names. COFF files may contain an +unlimited number of sections, each one with a textual section name. If +the target of the link is a format which does not have many sections +(e.g., `a.out') or has sections without names (e.g., the Oasys format), +the link cannot be done simply. You can circumvent this problem by +describing the desired input-to-output section mapping with the linker +command language. + + _Information can be lost during canonicalization._ The BFD internal +canonical form of the external formats is not exhaustive; there are +structures in input formats for which there is no direct representation +internally. This means that the BFD back ends cannot maintain all +possible data richness through the transformation between external to +internal and back to external formats. + + This limitation is only a problem when an application reads one +format and writes another. Each BFD back end is responsible for +maintaining as much data as possible, and the internal BFD canonical +form has structures which are opaque to the BFD core, and exported only +to the back ends. When a file is read in one format, the canonical form +is generated for BFD and the application. At the same time, the back +end saves away any information which may otherwise be lost. If the data +is then written back in the same format, the back end routine will be +able to use the canonical form provided by the BFD core as well as the +information it prepared earlier. Since there is a great deal of +commonality between back ends, there is no information lost when +linking or copying big endian COFF to little endian COFF, or `a.out' to +`b.out'. When a mixture of formats is linked, the information is only +lost from the files whose format differs from the destination. + + +File: bfd.info, Node: Canonical format, Prev: BFD information loss, Up: What BFD Version 2 Can Do + +1.3.2 The BFD canonical object-file format +------------------------------------------ + +The greatest potential for loss of information occurs when there is the +least overlap between the information provided by the source format, +that stored by the canonical format, and that needed by the destination +format. A brief description of the canonical form may help you +understand which kinds of data you can count on preserving across +conversions. + +_files_ + Information stored on a per-file basis includes target machine + architecture, particular implementation format type, a demand + pageable bit, and a write protected bit. Information like Unix + magic numbers is not stored here--only the magic numbers' meaning, + so a `ZMAGIC' file would have both the demand pageable bit and the + write protected text bit set. The byte order of the target is + stored on a per-file basis, so that big- and little-endian object + files may be used with one another. + +_sections_ + Each section in the input file contains the name of the section, + the section's original address in the object file, size and + alignment information, various flags, and pointers into other BFD + data structures. + +_symbols_ + Each symbol contains a pointer to the information for the object + file which originally defined it, its name, its value, and various + flag bits. When a BFD back end reads in a symbol table, it + relocates all symbols to make them relative to the base of the + section where they were defined. Doing this ensures that each + symbol points to its containing section. Each symbol also has a + varying amount of hidden private data for the BFD back end. Since + the symbol points to the original file, the private data format + for that symbol is accessible. `ld' can operate on a collection + of symbols of wildly different formats without problems. + + Normal global and simple local symbols are maintained on output, + so an output file (no matter its format) will retain symbols + pointing to functions and to global, static, and common variables. + Some symbol information is not worth retaining; in `a.out', type + information is stored in the symbol table as long symbol names. + This information would be useless to most COFF debuggers; the + linker has command line switches to allow users to throw it away. + + There is one word of type information within the symbol, so if the + format supports symbol type information within symbols (for + example, COFF, IEEE, Oasys) and the type is simple enough to fit + within one word (nearly everything but aggregates), the + information will be preserved. + +_relocation level_ + Each canonical BFD relocation record contains a pointer to the + symbol to relocate to, the offset of the data to relocate, the + section the data is in, and a pointer to a relocation type + descriptor. Relocation is performed by passing messages through + the relocation type descriptor and the symbol pointer. Therefore, + relocations can be performed on output data using a relocation + method that is only available in one of the input formats. For + instance, Oasys provides a byte relocation format. A relocation + record requesting this relocation type would point indirectly to a + routine to perform this, so the relocation may be performed on a + byte being written to a 68k COFF file, even though 68k COFF has no + such relocation type. + +_line numbers_ + Object formats can contain, for debugging purposes, some form of + mapping between symbols, source line numbers, and addresses in the + output file. These addresses have to be relocated along with the + symbol information. Each symbol with an associated list of line + number records points to the first record of the list. The head + of a line number list consists of a pointer to the symbol, which + allows finding out the address of the function whose line number + is being described. The rest of the list is made up of pairs: + offsets into the section and line numbers. Any format which can + simply derive this information can pass it successfully between + formats (COFF, IEEE and Oasys). + + +File: bfd.info, Node: BFD front end, Next: BFD back ends, Prev: Overview, Up: Top + +2 BFD Front End +*************** + +2.1 `typedef bfd' +================= + +A BFD has type `bfd'; objects of this type are the cornerstone of any +application using BFD. Using BFD consists of making references though +the BFD and to data in the BFD. + + Here is the structure that defines the type `bfd'. It contains the +major data about the file and pointers to the rest of the data. + + + struct bfd + { + /* A unique identifier of the BFD */ + unsigned int id; + + /* The filename the application opened the BFD with. */ + const char *filename; + + /* A pointer to the target jump table. */ + const struct bfd_target *xvec; + + /* The IOSTREAM, and corresponding IO vector that provide access + to the file backing the BFD. */ + void *iostream; + const struct bfd_iovec *iovec; + + /* Is the file descriptor being cached? That is, can it be closed as + needed, and re-opened when accessed later? */ + bfd_boolean cacheable; + + /* Marks whether there was a default target specified when the + BFD was opened. This is used to select which matching algorithm + to use to choose the back end. */ + bfd_boolean target_defaulted; + + /* The caching routines use these to maintain a + least-recently-used list of BFDs. */ + struct bfd *lru_prev, *lru_next; + + /* When a file is closed by the caching routines, BFD retains + state information on the file here... */ + ufile_ptr where; + + /* ... and here: (``once'' means at least once). */ + bfd_boolean opened_once; + + /* Set if we have a locally maintained mtime value, rather than + getting it from the file each time. */ + bfd_boolean mtime_set; + + /* File modified time, if mtime_set is TRUE. */ + long mtime; + + /* Reserved for an unimplemented file locking extension. */ + int ifd; + + /* The format which belongs to the BFD. (object, core, etc.) */ + bfd_format format; + + /* The direction with which the BFD was opened. */ + enum bfd_direction + { + no_direction = 0, + read_direction = 1, + write_direction = 2, + both_direction = 3 + } + direction; + + /* Format_specific flags. */ + flagword flags; + + /* Currently my_archive is tested before adding origin to + anything. I believe that this can become always an add of + origin, with origin set to 0 for non archive files. */ + ufile_ptr origin; + + /* Remember when output has begun, to stop strange things + from happening. */ + bfd_boolean output_has_begun; + + /* A hash table for section names. */ + struct bfd_hash_table section_htab; + + /* Pointer to linked list of sections. */ + struct bfd_section *sections; + + /* The place where we add to the section list. */ + struct bfd_section **section_tail; + + /* The number of sections. */ + unsigned int section_count; + + /* Stuff only useful for object files: + The start address. */ + bfd_vma start_address; + + /* Used for input and output. */ + unsigned int symcount; + + /* Symbol table for output BFD (with symcount entries). */ + struct bfd_symbol **outsymbols; + + /* Used for slurped dynamic symbol tables. */ + unsigned int dynsymcount; + + /* Pointer to structure which contains architecture information. */ + const struct bfd_arch_info *arch_info; + + /* Flag set if symbols from this BFD should not be exported. */ + bfd_boolean no_export; + + /* Stuff only useful for archives. */ + void *arelt_data; + struct bfd *my_archive; /* The containing archive BFD. */ + struct bfd *next; /* The next BFD in the archive. */ + struct bfd *archive_head; /* The first BFD in the archive. */ + bfd_boolean has_armap; + + /* A chain of BFD structures involved in a link. */ + struct bfd *link_next; + + /* A field used by _bfd_generic_link_add_archive_symbols. This will + be used only for archive elements. */ + int archive_pass; + + /* Used by the back end to hold private data. */ + union + { + struct aout_data_struct *aout_data; + struct artdata *aout_ar_data; + struct _oasys_data *oasys_obj_data; + struct _oasys_ar_data *oasys_ar_data; + struct coff_tdata *coff_obj_data; + struct pe_tdata *pe_obj_data; + struct xcoff_tdata *xcoff_obj_data; + struct ecoff_tdata *ecoff_obj_data; + struct ieee_data_struct *ieee_data; + struct ieee_ar_data_struct *ieee_ar_data; + struct srec_data_struct *srec_data; + struct ihex_data_struct *ihex_data; + struct tekhex_data_struct *tekhex_data; + struct elf_obj_tdata *elf_obj_data; + struct nlm_obj_tdata *nlm_obj_data; + struct bout_data_struct *bout_data; + struct mmo_data_struct *mmo_data; + struct sun_core_struct *sun_core_data; + struct sco5_core_struct *sco5_core_data; + struct trad_core_struct *trad_core_data; + struct som_data_struct *som_data; + struct hpux_core_struct *hpux_core_data; + struct hppabsd_core_struct *hppabsd_core_data; + struct sgi_core_struct *sgi_core_data; + struct lynx_core_struct *lynx_core_data; + struct osf_core_struct *osf_core_data; + struct cisco_core_struct *cisco_core_data; + struct versados_data_struct *versados_data; + struct netbsd_core_struct *netbsd_core_data; + struct mach_o_data_struct *mach_o_data; + struct mach_o_fat_data_struct *mach_o_fat_data; + struct bfd_pef_data_struct *pef_data; + struct bfd_pef_xlib_data_struct *pef_xlib_data; + struct bfd_sym_data_struct *sym_data; + void *any; + } + tdata; + + /* Used by the application to hold private data. */ + void *usrdata; + + /* Where all the allocated stuff under this BFD goes. This is a + struct objalloc *, but we use void * to avoid requiring the inclusion + of objalloc.h. */ + void *memory; + }; + +2.2 Error reporting +=================== + +Most BFD functions return nonzero on success (check their individual +documentation for precise semantics). On an error, they call +`bfd_set_error' to set an error condition that callers can check by +calling `bfd_get_error'. If that returns `bfd_error_system_call', then +check `errno'. + + The easiest way to report a BFD error to the user is to use +`bfd_perror'. + +2.2.1 Type `bfd_error_type' +--------------------------- + +The values returned by `bfd_get_error' are defined by the enumerated +type `bfd_error_type'. + + + typedef enum bfd_error + { + bfd_error_no_error = 0, + bfd_error_system_call, + bfd_error_invalid_target, + bfd_error_wrong_format, + bfd_error_wrong_object_format, + bfd_error_invalid_operation, + bfd_error_no_memory, + bfd_error_no_symbols, + bfd_error_no_armap, + bfd_error_no_more_archived_files, + bfd_error_malformed_archive, + bfd_error_file_not_recognized, + bfd_error_file_ambiguously_recognized, + bfd_error_no_contents, + bfd_error_nonrepresentable_section, + bfd_error_no_debug_section, + bfd_error_bad_value, + bfd_error_file_truncated, + bfd_error_file_too_big, + bfd_error_invalid_error_code + } + bfd_error_type; + +2.2.1.1 `bfd_get_error' +....................... + +*Synopsis* + bfd_error_type bfd_get_error (void); + *Description* +Return the current BFD error condition. + +2.2.1.2 `bfd_set_error' +....................... + +*Synopsis* + void bfd_set_error (bfd_error_type error_tag); + *Description* +Set the BFD error condition to be ERROR_TAG. + +2.2.1.3 `bfd_errmsg' +.................... + +*Synopsis* + const char *bfd_errmsg (bfd_error_type error_tag); + *Description* +Return a string describing the error ERROR_TAG, or the system error if +ERROR_TAG is `bfd_error_system_call'. + +2.2.1.4 `bfd_perror' +.................... + +*Synopsis* + void bfd_perror (const char *message); + *Description* +Print to the standard error stream a string describing the last BFD +error that occurred, or the last system error if the last BFD error was +a system call failure. If MESSAGE is non-NULL and non-empty, the error +string printed is preceded by MESSAGE, a colon, and a space. It is +followed by a newline. + +2.2.2 BFD error handler +----------------------- + +Some BFD functions want to print messages describing the problem. They +call a BFD error handler function. This function may be overridden by +the program. + + The BFD error handler acts like printf. + + + typedef void (*bfd_error_handler_type) (const char *, ...); + +2.2.2.1 `bfd_set_error_handler' +............................... + +*Synopsis* + bfd_error_handler_type bfd_set_error_handler (bfd_error_handler_type); + *Description* +Set the BFD error handler function. Returns the previous function. + +2.2.2.2 `bfd_set_error_program_name' +.................................... + +*Synopsis* + void bfd_set_error_program_name (const char *); + *Description* +Set the program name to use when printing a BFD error. This is printed +before the error message followed by a colon and space. The string +must not be changed after it is passed to this function. + +2.2.2.3 `bfd_get_error_handler' +............................... + +*Synopsis* + bfd_error_handler_type bfd_get_error_handler (void); + *Description* +Return the BFD error handler function. + +2.3 Symbols +=========== + +2.3.0.1 `bfd_get_reloc_upper_bound' +................................... + +*Synopsis* + long bfd_get_reloc_upper_bound (bfd *abfd, asection *sect); + *Description* +Return the number of bytes required to store the relocation information +associated with section SECT attached to bfd ABFD. If an error occurs, +return -1. + +2.3.0.2 `bfd_canonicalize_reloc' +................................ + +*Synopsis* + long bfd_canonicalize_reloc + (bfd *abfd, asection *sec, arelent **loc, asymbol **syms); + *Description* +Call the back end associated with the open BFD ABFD and translate the +external form of the relocation information attached to SEC into the +internal canonical form. Place the table into memory at LOC, which has +been preallocated, usually by a call to `bfd_get_reloc_upper_bound'. +Returns the number of relocs, or -1 on error. + + The SYMS table is also needed for horrible internal magic reasons. + +2.3.0.3 `bfd_set_reloc' +....................... + +*Synopsis* + void bfd_set_reloc + (bfd *abfd, asection *sec, arelent **rel, unsigned int count); + *Description* +Set the relocation pointer and count within section SEC to the values +REL and COUNT. The argument ABFD is ignored. + +2.3.0.4 `bfd_set_file_flags' +............................ + +*Synopsis* + bfd_boolean bfd_set_file_flags (bfd *abfd, flagword flags); + *Description* +Set the flag word in the BFD ABFD to the value FLAGS. + + Possible errors are: + * `bfd_error_wrong_format' - The target bfd was not of object format. + + * `bfd_error_invalid_operation' - The target bfd was open for + reading. + + * `bfd_error_invalid_operation' - The flag word contained a bit + which was not applicable to the type of file. E.g., an attempt + was made to set the `D_PAGED' bit on a BFD format which does not + support demand paging. + +2.3.0.5 `bfd_get_arch_size' +........................... + +*Synopsis* + int bfd_get_arch_size (bfd *abfd); + *Description* +Returns the architecture address size, in bits, as determined by the +object file's format. For ELF, this information is included in the +header. + + *Returns* +Returns the arch size in bits if known, `-1' otherwise. + +2.3.0.6 `bfd_get_sign_extend_vma' +................................. + +*Synopsis* + int bfd_get_sign_extend_vma (bfd *abfd); + *Description* +Indicates if the target architecture "naturally" sign extends an +address. Some architectures implicitly sign extend address values when +they are converted to types larger than the size of an address. For +instance, bfd_get_start_address() will return an address sign extended +to fill a bfd_vma when this is the case. + + *Returns* +Returns `1' if the target architecture is known to sign extend +addresses, `0' if the target architecture is known to not sign extend +addresses, and `-1' otherwise. + +2.3.0.7 `bfd_set_start_address' +............................... + +*Synopsis* + bfd_boolean bfd_set_start_address (bfd *abfd, bfd_vma vma); + *Description* +Make VMA the entry point of output BFD ABFD. + + *Returns* +Returns `TRUE' on success, `FALSE' otherwise. + +2.3.0.8 `bfd_get_gp_size' +......................... + +*Synopsis* + unsigned int bfd_get_gp_size (bfd *abfd); + *Description* +Return the maximum size of objects to be optimized using the GP +register under MIPS ECOFF. This is typically set by the `-G' argument +to the compiler, assembler or linker. + +2.3.0.9 `bfd_set_gp_size' +......................... + +*Synopsis* + void bfd_set_gp_size (bfd *abfd, unsigned int i); + *Description* +Set the maximum size of objects to be optimized using the GP register +under ECOFF or MIPS ELF. This is typically set by the `-G' argument to +the compiler, assembler or linker. + +2.3.0.10 `bfd_scan_vma' +....................... + +*Synopsis* + bfd_vma bfd_scan_vma (const char *string, const char **end, int base); + *Description* +Convert, like `strtoul', a numerical expression STRING into a `bfd_vma' +integer, and return that integer. (Though without as many bells and +whistles as `strtoul'.) The expression is assumed to be unsigned +(i.e., positive). If given a BASE, it is used as the base for +conversion. A base of 0 causes the function to interpret the string in +hex if a leading "0x" or "0X" is found, otherwise in octal if a leading +zero is found, otherwise in decimal. + + If the value would overflow, the maximum `bfd_vma' value is returned. + +2.3.0.11 `bfd_copy_private_header_data' +....................................... + +*Synopsis* + bfd_boolean bfd_copy_private_header_data (bfd *ibfd, bfd *obfd); + *Description* +Copy private BFD header information from the BFD IBFD to the the BFD +OBFD. This copies information that may require sections to exist, but +does not require symbol tables. Return `true' on success, `false' on +error. Possible error returns are: + + * `bfd_error_no_memory' - Not enough memory exists to create private + data for OBFD. + + #define bfd_copy_private_header_data(ibfd, obfd) \ + BFD_SEND (obfd, _bfd_copy_private_header_data, \ + (ibfd, obfd)) + +2.3.0.12 `bfd_copy_private_bfd_data' +.................................... + +*Synopsis* + bfd_boolean bfd_copy_private_bfd_data (bfd *ibfd, bfd *obfd); + *Description* +Copy private BFD information from the BFD IBFD to the the BFD OBFD. +Return `TRUE' on success, `FALSE' on error. Possible error returns are: + + * `bfd_error_no_memory' - Not enough memory exists to create private + data for OBFD. + + #define bfd_copy_private_bfd_data(ibfd, obfd) \ + BFD_SEND (obfd, _bfd_copy_private_bfd_data, \ + (ibfd, obfd)) + +2.3.0.13 `bfd_merge_private_bfd_data' +..................................... + +*Synopsis* + bfd_boolean bfd_merge_private_bfd_data (bfd *ibfd, bfd *obfd); + *Description* +Merge private BFD information from the BFD IBFD to the the output file +BFD OBFD when linking. Return `TRUE' on success, `FALSE' on error. +Possible error returns are: + + * `bfd_error_no_memory' - Not enough memory exists to create private + data for OBFD. + + #define bfd_merge_private_bfd_data(ibfd, obfd) \ + BFD_SEND (obfd, _bfd_merge_private_bfd_data, \ + (ibfd, obfd)) + +2.3.0.14 `bfd_set_private_flags' +................................ + +*Synopsis* + bfd_boolean bfd_set_private_flags (bfd *abfd, flagword flags); + *Description* +Set private BFD flag information in the BFD ABFD. Return `TRUE' on +success, `FALSE' on error. Possible error returns are: + + * `bfd_error_no_memory' - Not enough memory exists to create private + data for OBFD. + + #define bfd_set_private_flags(abfd, flags) \ + BFD_SEND (abfd, _bfd_set_private_flags, (abfd, flags)) + +2.3.0.15 `Other functions' +.......................... + +*Description* +The following functions exist but have not yet been documented. + #define bfd_sizeof_headers(abfd, reloc) \ + BFD_SEND (abfd, _bfd_sizeof_headers, (abfd, reloc)) + + #define bfd_find_nearest_line(abfd, sec, syms, off, file, func, line) \ + BFD_SEND (abfd, _bfd_find_nearest_line, \ + (abfd, sec, syms, off, file, func, line)) + + #define bfd_debug_info_start(abfd) \ + BFD_SEND (abfd, _bfd_debug_info_start, (abfd)) + + #define bfd_debug_info_end(abfd) \ + BFD_SEND (abfd, _bfd_debug_info_end, (abfd)) + + #define bfd_debug_info_accumulate(abfd, section) \ + BFD_SEND (abfd, _bfd_debug_info_accumulate, (abfd, section)) + + #define bfd_stat_arch_elt(abfd, stat) \ + BFD_SEND (abfd, _bfd_stat_arch_elt,(abfd, stat)) + + #define bfd_update_armap_timestamp(abfd) \ + BFD_SEND (abfd, _bfd_update_armap_timestamp, (abfd)) + + #define bfd_set_arch_mach(abfd, arch, mach)\ + BFD_SEND ( abfd, _bfd_set_arch_mach, (abfd, arch, mach)) + + #define bfd_relax_section(abfd, section, link_info, again) \ + BFD_SEND (abfd, _bfd_relax_section, (abfd, section, link_info, again)) + + #define bfd_gc_sections(abfd, link_info) \ + BFD_SEND (abfd, _bfd_gc_sections, (abfd, link_info)) + + #define bfd_merge_sections(abfd, link_info) \ + BFD_SEND (abfd, _bfd_merge_sections, (abfd, link_info)) + + #define bfd_is_group_section(abfd, sec) \ + BFD_SEND (abfd, _bfd_is_group_section, (abfd, sec)) + + #define bfd_discard_group(abfd, sec) \ + BFD_SEND (abfd, _bfd_discard_group, (abfd, sec)) + + #define bfd_link_hash_table_create(abfd) \ + BFD_SEND (abfd, _bfd_link_hash_table_create, (abfd)) + + #define bfd_link_hash_table_free(abfd, hash) \ + BFD_SEND (abfd, _bfd_link_hash_table_free, (hash)) + + #define bfd_link_add_symbols(abfd, info) \ + BFD_SEND (abfd, _bfd_link_add_symbols, (abfd, info)) + + #define bfd_link_just_syms(abfd, sec, info) \ + BFD_SEND (abfd, _bfd_link_just_syms, (sec, info)) + + #define bfd_final_link(abfd, info) \ + BFD_SEND (abfd, _bfd_final_link, (abfd, info)) + + #define bfd_free_cached_info(abfd) \ + BFD_SEND (abfd, _bfd_free_cached_info, (abfd)) + + #define bfd_get_dynamic_symtab_upper_bound(abfd) \ + BFD_SEND (abfd, _bfd_get_dynamic_symtab_upper_bound, (abfd)) + + #define bfd_print_private_bfd_data(abfd, file)\ + BFD_SEND (abfd, _bfd_print_private_bfd_data, (abfd, file)) + + #define bfd_canonicalize_dynamic_symtab(abfd, asymbols) \ + BFD_SEND (abfd, _bfd_canonicalize_dynamic_symtab, (abfd, asymbols)) + + #define bfd_get_synthetic_symtab(abfd, count, syms, dyncount, dynsyms, ret) \ + BFD_SEND (abfd, _bfd_get_synthetic_symtab, (abfd, count, syms, \ + dyncount, dynsyms, ret)) + + #define bfd_get_dynamic_reloc_upper_bound(abfd) \ + BFD_SEND (abfd, _bfd_get_dynamic_reloc_upper_bound, (abfd)) + + #define bfd_canonicalize_dynamic_reloc(abfd, arels, asyms) \ + BFD_SEND (abfd, _bfd_canonicalize_dynamic_reloc, (abfd, arels, asyms)) + + extern bfd_byte *bfd_get_relocated_section_contents + (bfd *, struct bfd_link_info *, struct bfd_link_order *, bfd_byte *, + bfd_boolean, asymbol **); + +2.3.0.16 `bfd_alt_mach_code' +............................ + +*Synopsis* + bfd_boolean bfd_alt_mach_code (bfd *abfd, int alternative); + *Description* +When more than one machine code number is available for the same +machine type, this function can be used to switch between the preferred +one (alternative == 0) and any others. Currently, only ELF supports +this feature, with up to two alternate machine codes. + + struct bfd_preserve + { + void *marker; + void *tdata; + flagword flags; + const struct bfd_arch_info *arch_info; + struct bfd_section *sections; + struct bfd_section **section_tail; + unsigned int section_count; + struct bfd_hash_table section_htab; + }; + +2.3.0.17 `bfd_preserve_save' +............................ + +*Synopsis* + bfd_boolean bfd_preserve_save (bfd *, struct bfd_preserve *); + *Description* +When testing an object for compatibility with a particular target +back-end, the back-end object_p function needs to set up certain fields +in the bfd on successfully recognizing the object. This typically +happens in a piecemeal fashion, with failures possible at many points. +On failure, the bfd is supposed to be restored to its initial state, +which is virtually impossible. However, restoring a subset of the bfd +state works in practice. This function stores the subset and +reinitializes the bfd. + +2.3.0.18 `bfd_preserve_restore' +............................... + +*Synopsis* + void bfd_preserve_restore (bfd *, struct bfd_preserve *); + *Description* +This function restores bfd state saved by bfd_preserve_save. If MARKER +is non-NULL in struct bfd_preserve then that block and all subsequently +bfd_alloc'd memory is freed. + +2.3.0.19 `bfd_preserve_finish' +.............................. + +*Synopsis* + void bfd_preserve_finish (bfd *, struct bfd_preserve *); + *Description* +This function should be called when the bfd state saved by +bfd_preserve_save is no longer needed. ie. when the back-end object_p +function returns with success. + +2.3.0.20 `struct bfd_iovec' +........................... + +*Description* +The `struct bfd_iovec' contains the internal file I/O class. Each +`BFD' has an instance of this class and all file I/O is routed through +it (it is assumed that the instance implements all methods listed +below). + struct bfd_iovec + { + /* To avoid problems with macros, a "b" rather than "f" + prefix is prepended to each method name. */ + /* Attempt to read/write NBYTES on ABFD's IOSTREAM storing/fetching + bytes starting at PTR. Return the number of bytes actually + transfered (a read past end-of-file returns less than NBYTES), + or -1 (setting `bfd_error') if an error occurs. */ + file_ptr (*bread) (struct bfd *abfd, void *ptr, file_ptr nbytes); + file_ptr (*bwrite) (struct bfd *abfd, const void *ptr, + file_ptr nbytes); + /* Return the current IOSTREAM file offset, or -1 (setting `bfd_error' + if an error occurs. */ + file_ptr (*btell) (struct bfd *abfd); + /* For the following, on successful completion a value of 0 is returned. + Otherwise, a value of -1 is returned (and `bfd_error' is set). */ + int (*bseek) (struct bfd *abfd, file_ptr offset, int whence); + int (*bclose) (struct bfd *abfd); + int (*bflush) (struct bfd *abfd); + int (*bstat) (struct bfd *abfd, struct stat *sb); + }; + +2.3.0.21 `bfd_get_mtime' +........................ + +*Synopsis* + long bfd_get_mtime (bfd *abfd); + *Description* +Return the file modification time (as read from the file system, or +from the archive header for archive members). + +2.3.0.22 `bfd_get_size' +....................... + +*Synopsis* + long bfd_get_size (bfd *abfd); + *Description* +Return the file size (as read from file system) for the file associated +with BFD ABFD. + + The initial motivation for, and use of, this routine is not so we +can get the exact size of the object the BFD applies to, since that +might not be generally possible (archive members for example). It +would be ideal if someone could eventually modify it so that such +results were guaranteed. + + Instead, we want to ask questions like "is this NNN byte sized +object I'm about to try read from file offset YYY reasonable?" As as +example of where we might do this, some object formats use string +tables for which the first `sizeof (long)' bytes of the table contain +the size of the table itself, including the size bytes. If an +application tries to read what it thinks is one of these string tables, +without some way to validate the size, and for some reason the size is +wrong (byte swapping error, wrong location for the string table, etc.), +the only clue is likely to be a read error when it tries to read the +table, or a "virtual memory exhausted" error when it tries to allocate +15 bazillon bytes of space for the 15 bazillon byte table it is about +to read. This function at least allows us to answer the question, "is +the size reasonable?". + +* Menu: + +* Memory Usage:: +* Initialization:: +* Sections:: +* Symbols:: +* Archives:: +* Formats:: +* Relocations:: +* Core Files:: +* Targets:: +* Architectures:: +* Opening and Closing:: +* Internal:: +* File Caching:: +* Linker Functions:: +* Hash Tables:: + + +File: bfd.info, Node: Memory Usage, Next: Initialization, Prev: BFD front end, Up: BFD front end + +2.4 Memory Usage +================ + +BFD keeps all of its internal structures in obstacks. There is one +obstack per open BFD file, into which the current state is stored. When +a BFD is closed, the obstack is deleted, and so everything which has +been allocated by BFD for the closing file is thrown away. + + BFD does not free anything created by an application, but pointers +into `bfd' structures become invalid on a `bfd_close'; for example, +after a `bfd_close' the vector passed to `bfd_canonicalize_symtab' is +still around, since it has been allocated by the application, but the +data that it pointed to are lost. + + The general rule is to not close a BFD until all operations dependent +upon data from the BFD have been completed, or all the data from within +the file has been copied. To help with the management of memory, there +is a function (`bfd_alloc_size') which returns the number of bytes in +obstacks associated with the supplied BFD. This could be used to select +the greediest open BFD, close it to reclaim the memory, perform some +operation and reopen the BFD again, to get a fresh copy of the data +structures. + + +File: bfd.info, Node: Initialization, Next: Sections, Prev: Memory Usage, Up: BFD front end + +2.5 Initialization +================== + +These are the functions that handle initializing a BFD. + +2.5.0.1 `bfd_init' +.................. + +*Synopsis* + void bfd_init (void); + *Description* +This routine must be called before any other BFD function to initialize +magical internal data structures. + + +File: bfd.info, Node: Sections, Next: Symbols, Prev: Initialization, Up: BFD front end + +2.6 Sections +============ + +The raw data contained within a BFD is maintained through the section +abstraction. A single BFD may have any number of sections. It keeps +hold of them by pointing to the first; each one points to the next in +the list. + + Sections are supported in BFD in `section.c'. + +* Menu: + +* Section Input:: +* Section Output:: +* typedef asection:: +* section prototypes:: + + +File: bfd.info, Node: Section Input, Next: Section Output, Prev: Sections, Up: Sections + +2.6.1 Section input +------------------- + +When a BFD is opened for reading, the section structures are created +and attached to the BFD. + + Each section has a name which describes the section in the outside +world--for example, `a.out' would contain at least three sections, +called `.text', `.data' and `.bss'. + + Names need not be unique; for example a COFF file may have several +sections named `.data'. + + Sometimes a BFD will contain more than the "natural" number of +sections. A back end may attach other sections containing constructor +data, or an application may add a section (using `bfd_make_section') to +the sections attached to an already open BFD. For example, the linker +creates an extra section `COMMON' for each input file's BFD to hold +information about common storage. + + The raw data is not necessarily read in when the section descriptor +is created. Some targets may leave the data in place until a +`bfd_get_section_contents' call is made. Other back ends may read in +all the data at once. For example, an S-record file has to be read +once to determine the size of the data. An IEEE-695 file doesn't +contain raw data in sections, but data and relocation expressions +intermixed, so the data area has to be parsed to get out the data and +relocations. + + +File: bfd.info, Node: Section Output, Next: typedef asection, Prev: Section Input, Up: Sections + +2.6.2 Section output +-------------------- + +To write a new object style BFD, the various sections to be written +have to be created. They are attached to the BFD in the same way as +input sections; data is written to the sections using +`bfd_set_section_contents'. + + Any program that creates or combines sections (e.g., the assembler +and linker) must use the `asection' fields `output_section' and +`output_offset' to indicate the file sections to which each section +must be written. (If the section is being created from scratch, +`output_section' should probably point to the section itself and +`output_offset' should probably be zero.) + + The data to be written comes from input sections attached (via +`output_section' pointers) to the output sections. The output section +structure can be considered a filter for the input section: the output +section determines the vma of the output data and the name, but the +input section determines the offset into the output section of the data +to be written. + + E.g., to create a section "O", starting at 0x100, 0x123 long, +containing two subsections, "A" at offset 0x0 (i.e., at vma 0x100) and +"B" at offset 0x20 (i.e., at vma 0x120) the `asection' structures would +look like: + + section name "A" + output_offset 0x00 + size 0x20 + output_section -----------> section name "O" + | vma 0x100 + section name "B" | size 0x123 + output_offset 0x20 | + size 0x103 | + output_section --------| + +2.6.3 Link orders +----------------- + +The data within a section is stored in a "link_order". These are much +like the fixups in `gas'. The link_order abstraction allows a section +to grow and shrink within itself. + + A link_order knows how big it is, and which is the next link_order +and where the raw data for it is; it also points to a list of +relocations which apply to it. + + The link_order is used by the linker to perform relaxing on final +code. The compiler creates code which is as big as necessary to make +it work without relaxing, and the user can select whether to relax. +Sometimes relaxing takes a lot of time. The linker runs around the +relocations to see if any are attached to data which can be shrunk, if +so it does it on a link_order by link_order basis. + + +File: bfd.info, Node: typedef asection, Next: section prototypes, Prev: Section Output, Up: Sections + +2.6.4 typedef asection +---------------------- + +Here is the section structure: + + + typedef struct bfd_section + { + /* The name of the section; the name isn't a copy, the pointer is + the same as that passed to bfd_make_section. */ + const char *name; + + /* A unique sequence number. */ + int id; + + /* Which section in the bfd; 0..n-1 as sections are created in a bfd. */ + int index; + + /* The next section in the list belonging to the BFD, or NULL. */ + struct bfd_section *next; + + /* The field flags contains attributes of the section. Some + flags are read in from the object file, and some are + synthesized from other information. */ + flagword flags; + + #define SEC_NO_FLAGS 0x000 + + /* Tells the OS to allocate space for this section when loading. + This is clear for a section containing debug information only. */ + #define SEC_ALLOC 0x001 + + /* Tells the OS to load the section from the file when loading. + This is clear for a .bss section. */ + #define SEC_LOAD 0x002 + + /* The section contains data still to be relocated, so there is + some relocation information too. */ + #define SEC_RELOC 0x004 + + /* A signal to the OS that the section contains read only data. */ + #define SEC_READONLY 0x008 + + /* The section contains code only. */ + #define SEC_CODE 0x010 + + /* The section contains data only. */ + #define SEC_DATA 0x020 + + /* The section will reside in ROM. */ + #define SEC_ROM 0x040 + + /* The section contains constructor information. This section + type is used by the linker to create lists of constructors and + destructors used by `g++'. When a back end sees a symbol + which should be used in a constructor list, it creates a new + section for the type of name (e.g., `__CTOR_LIST__'), attaches + the symbol to it, and builds a relocation. To build the lists + of constructors, all the linker has to do is catenate all the + sections called `__CTOR_LIST__' and relocate the data + contained within - exactly the operations it would peform on + standard data. */ + #define SEC_CONSTRUCTOR 0x080 + + /* The section has contents - a data section could be + `SEC_ALLOC' | `SEC_HAS_CONTENTS'; a debug section could be + `SEC_HAS_CONTENTS' */ + #define SEC_HAS_CONTENTS 0x100 + + /* An instruction to the linker to not output the section + even if it has information which would normally be written. */ + #define SEC_NEVER_LOAD 0x200 + + /* The section contains thread local data. */ + #define SEC_THREAD_LOCAL 0x400 + + /* The section has GOT references. This flag is only for the + linker, and is currently only used by the elf32-hppa back end. + It will be set if global offset table references were detected + in this section, which indicate to the linker that the section + contains PIC code, and must be handled specially when doing a + static link. */ + #define SEC_HAS_GOT_REF 0x800 + + /* The section contains common symbols (symbols may be defined + multiple times, the value of a symbol is the amount of + space it requires, and the largest symbol value is the one + used). Most targets have exactly one of these (which we + translate to bfd_com_section_ptr), but ECOFF has two. */ + #define SEC_IS_COMMON 0x1000 + + /* The section contains only debugging information. For + example, this is set for ELF .debug and .stab sections. + strip tests this flag to see if a section can be + discarded. */ + #define SEC_DEBUGGING 0x2000 + + /* The contents of this section are held in memory pointed to + by the contents field. This is checked by bfd_get_section_contents, + and the data is retrieved from memory if appropriate. */ + #define SEC_IN_MEMORY 0x4000 + + /* The contents of this section are to be excluded by the + linker for executable and shared objects unless those + objects are to be further relocated. */ + #define SEC_EXCLUDE 0x8000 + + /* The contents of this section are to be sorted based on the sum of + the symbol and addend values specified by the associated relocation + entries. Entries without associated relocation entries will be + appended to the end of the section in an unspecified order. */ + #define SEC_SORT_ENTRIES 0x10000 + + /* When linking, duplicate sections of the same name should be + discarded, rather than being combined into a single section as + is usually done. This is similar to how common symbols are + handled. See SEC_LINK_DUPLICATES below. */ + #define SEC_LINK_ONCE 0x20000 + + /* If SEC_LINK_ONCE is set, this bitfield describes how the linker + should handle duplicate sections. */ + #define SEC_LINK_DUPLICATES 0x40000 + + /* This value for SEC_LINK_DUPLICATES means that duplicate + sections with the same name should simply be discarded. */ + #define SEC_LINK_DUPLICATES_DISCARD 0x0 + + /* This value for SEC_LINK_DUPLICATES means that the linker + should warn if there are any duplicate sections, although + it should still only link one copy. */ + #define SEC_LINK_DUPLICATES_ONE_ONLY 0x80000 + + /* This value for SEC_LINK_DUPLICATES means that the linker + should warn if any duplicate sections are a different size. */ + #define SEC_LINK_DUPLICATES_SAME_SIZE 0x100000 + + /* This value for SEC_LINK_DUPLICATES means that the linker + should warn if any duplicate sections contain different + contents. */ + #define SEC_LINK_DUPLICATES_SAME_CONTENTS \ + (SEC_LINK_DUPLICATES_ONE_ONLY | SEC_LINK_DUPLICATES_SAME_SIZE) + + /* This section was created by the linker as part of dynamic + relocation or other arcane processing. It is skipped when + going through the first-pass output, trusting that someone + else up the line will take care of it later. */ + #define SEC_LINKER_CREATED 0x200000 + + /* This section should not be subject to garbage collection. */ + #define SEC_KEEP 0x400000 + + /* This section contains "short" data, and should be placed + "near" the GP. */ + #define SEC_SMALL_DATA 0x800000 + + /* Attempt to merge identical entities in the section. + Entity size is given in the entsize field. */ + #define SEC_MERGE 0x1000000 + + /* If given with SEC_MERGE, entities to merge are zero terminated + strings where entsize specifies character size instead of fixed + size entries. */ + #define SEC_STRINGS 0x2000000 + + /* This section contains data about section groups. */ + #define SEC_GROUP 0x4000000 + + /* The section is a COFF shared library section. This flag is + only for the linker. If this type of section appears in + the input file, the linker must copy it to the output file + without changing the vma or size. FIXME: Although this + was originally intended to be general, it really is COFF + specific (and the flag was renamed to indicate this). It + might be cleaner to have some more general mechanism to + allow the back end to control what the linker does with + sections. */ + #define SEC_COFF_SHARED_LIBRARY 0x10000000 + + /* This section contains data which may be shared with other + executables or shared objects. This is for COFF only. */ + #define SEC_COFF_SHARED 0x20000000 + + /* When a section with this flag is being linked, then if the size of + the input section is less than a page, it should not cross a page + boundary. If the size of the input section is one page or more, + it should be aligned on a page boundary. This is for TI + TMS320C54X only. */ + #define SEC_TIC54X_BLOCK 0x40000000 + + /* Conditionally link this section; do not link if there are no + references found to any symbol in the section. This is for TI + TMS320C54X only. */ + #define SEC_TIC54X_CLINK 0x80000000 + + /* End of section flags. */ + + /* Some internal packed boolean fields. */ + + /* See the vma field. */ + unsigned int user_set_vma : 1; + + /* A mark flag used by some of the linker backends. */ + unsigned int linker_mark : 1; + + /* Another mark flag used by some of the linker backends. Set for + output sections that have an input section. */ + unsigned int linker_has_input : 1; + + /* A mark flag used by some linker backends for garbage collection. */ + unsigned int gc_mark : 1; + + /* The following flags are used by the ELF linker. */ + + /* Mark sections which have been allocated to segments. */ + unsigned int segment_mark : 1; + + /* Type of sec_info information. */ + unsigned int sec_info_type:3; + #define ELF_INFO_TYPE_NONE 0 + #define ELF_INFO_TYPE_STABS 1 + #define ELF_INFO_TYPE_MERGE 2 + #define ELF_INFO_TYPE_EH_FRAME 3 + #define ELF_INFO_TYPE_JUST_SYMS 4 + + /* Nonzero if this section uses RELA relocations, rather than REL. */ + unsigned int use_rela_p:1; + + /* Bits used by various backends. The generic code doesn't touch + these fields. */ + + /* Nonzero if this section has TLS related relocations. */ + unsigned int has_tls_reloc:1; + + /* Nonzero if this section has a gp reloc. */ + unsigned int has_gp_reloc:1; + + /* Nonzero if this section needs the relax finalize pass. */ + unsigned int need_finalize_relax:1; + + /* Whether relocations have been processed. */ + unsigned int reloc_done : 1; + + /* End of internal packed boolean fields. */ + + /* The virtual memory address of the section - where it will be + at run time. The symbols are relocated against this. The + user_set_vma flag is maintained by bfd; if it's not set, the + backend can assign addresses (for example, in `a.out', where + the default address for `.data' is dependent on the specific + target and various flags). */ + bfd_vma vma; + + /* The load address of the section - where it would be in a + rom image; really only used for writing section header + information. */ + bfd_vma lma; + + /* The size of the section in octets, as it will be output. + Contains a value even if the section has no contents (e.g., the + size of `.bss'). */ + bfd_size_type size; + + /* For input sections, the original size on disk of the section, in + octets. This field is used by the linker relaxation code. It is + currently only set for sections where the linker relaxation scheme + doesn't cache altered section and reloc contents (stabs, eh_frame, + SEC_MERGE, some coff relaxing targets), and thus the original size + needs to be kept to read the section multiple times. + For output sections, rawsize holds the section size calculated on + a previous linker relaxation pass. */ + bfd_size_type rawsize; + + /* If this section is going to be output, then this value is the + offset in *bytes* into the output section of the first byte in the + input section (byte ==> smallest addressable unit on the + target). In most cases, if this was going to start at the + 100th octet (8-bit quantity) in the output section, this value + would be 100. However, if the target byte size is 16 bits + (bfd_octets_per_byte is "2"), this value would be 50. */ + bfd_vma output_offset; + + /* The output section through which to map on output. */ + struct bfd_section *output_section; + + /* The alignment requirement of the section, as an exponent of 2 - + e.g., 3 aligns to 2^3 (or 8). */ + unsigned int alignment_power; + + /* If an input section, a pointer to a vector of relocation + records for the data in this section. */ + struct reloc_cache_entry *relocation; + + /* If an output section, a pointer to a vector of pointers to + relocation records for the data in this section. */ + struct reloc_cache_entry **orelocation; + + /* The number of relocation records in one of the above. */ + unsigned reloc_count; + + /* Information below is back end specific - and not always used + or updated. */ + + /* File position of section data. */ + file_ptr filepos; + + /* File position of relocation info. */ + file_ptr rel_filepos; + + /* File position of line data. */ + file_ptr line_filepos; + + /* Pointer to data for applications. */ + void *userdata; + + /* If the SEC_IN_MEMORY flag is set, this points to the actual + contents. */ + unsigned char *contents; + + /* Attached line number information. */ + alent *lineno; + + /* Number of line number records. */ + unsigned int lineno_count; + + /* Entity size for merging purposes. */ + unsigned int entsize; + + /* Points to the kept section if this section is a link-once section, + and is discarded. */ + struct bfd_section *kept_section; + + /* When a section is being output, this value changes as more + linenumbers are written out. */ + file_ptr moving_line_filepos; + + /* What the section number is in the target world. */ + int target_index; + + void *used_by_bfd; + + /* If this is a constructor section then here is a list of the + relocations created to relocate items within it. */ + struct relent_chain *constructor_chain; + + /* The BFD which owns the section. */ + bfd *owner; + + /* A symbol which points at this section only. */ + struct bfd_symbol *symbol; + struct bfd_symbol **symbol_ptr_ptr; + + struct bfd_link_order *link_order_head; + struct bfd_link_order *link_order_tail; + } asection; + + /* These sections are global, and are managed by BFD. The application + and target back end are not permitted to change the values in + these sections. New code should use the section_ptr macros rather + than referring directly to the const sections. The const sections + may eventually vanish. */ + #define BFD_ABS_SECTION_NAME "*ABS*" + #define BFD_UND_SECTION_NAME "*UND*" + #define BFD_COM_SECTION_NAME "*COM*" + #define BFD_IND_SECTION_NAME "*IND*" + + /* The absolute section. */ + extern asection bfd_abs_section; + #define bfd_abs_section_ptr ((asection *) &bfd_abs_section) + #define bfd_is_abs_section(sec) ((sec) == bfd_abs_section_ptr) + /* Pointer to the undefined section. */ + extern asection bfd_und_section; + #define bfd_und_section_ptr ((asection *) &bfd_und_section) + #define bfd_is_und_section(sec) ((sec) == bfd_und_section_ptr) + /* Pointer to the common section. */ + extern asection bfd_com_section; + #define bfd_com_section_ptr ((asection *) &bfd_com_section) + /* Pointer to the indirect section. */ + extern asection bfd_ind_section; + #define bfd_ind_section_ptr ((asection *) &bfd_ind_section) + #define bfd_is_ind_section(sec) ((sec) == bfd_ind_section_ptr) + + #define bfd_is_const_section(SEC) \ + ( ((SEC) == bfd_abs_section_ptr) \ + || ((SEC) == bfd_und_section_ptr) \ + || ((SEC) == bfd_com_section_ptr) \ + || ((SEC) == bfd_ind_section_ptr)) + + extern const struct bfd_symbol * const bfd_abs_symbol; + extern const struct bfd_symbol * const bfd_com_symbol; + extern const struct bfd_symbol * const bfd_und_symbol; + extern const struct bfd_symbol * const bfd_ind_symbol; + + /* Macros to handle insertion and deletion of a bfd's sections. These + only handle the list pointers, ie. do not adjust section_count, + target_index etc. */ + #define bfd_section_list_remove(ABFD, PS) \ + do \ + { \ + asection **_ps = PS; \ + asection *_s = *_ps; \ + *_ps = _s->next; \ + if (_s->next == NULL) \ + (ABFD)->section_tail = _ps; \ + } \ + while (0) + #define bfd_section_list_insert(ABFD, PS, S) \ + do \ + { \ + asection **_ps = PS; \ + asection *_s = S; \ + _s->next = *_ps; \ + *_ps = _s; \ + if (_s->next == NULL) \ + (ABFD)->section_tail = &_s->next; \ + } \ + while (0) + + +File: bfd.info, Node: section prototypes, Prev: typedef asection, Up: Sections + +2.6.5 Section prototypes +------------------------ + +These are the functions exported by the section handling part of BFD. + +2.6.5.1 `bfd_section_list_clear' +................................ + +*Synopsis* + void bfd_section_list_clear (bfd *); + *Description* +Clears the section list, and also resets the section count and hash +table entries. + +2.6.5.2 `bfd_get_section_by_name' +................................. + +*Synopsis* + asection *bfd_get_section_by_name (bfd *abfd, const char *name); + *Description* +Run through ABFD and return the one of the `asection's whose name +matches NAME, otherwise `NULL'. *Note Sections::, for more information. + + This should only be used in special cases; the normal way to process +all sections of a given name is to use `bfd_map_over_sections' and +`strcmp' on the name (or better yet, base it on the section flags or +something else) for each section. + +2.6.5.3 `bfd_get_section_by_name_if' +.................................... + +*Synopsis* + asection *bfd_get_section_by_name_if + (bfd *abfd, + const char *name, + bfd_boolean (*func) (bfd *abfd, asection *sect, void *obj), + void *obj); + *Description* +Call the provided function FUNC for each section attached to the BFD +ABFD whose name matches NAME, passing OBJ as an argument. The function +will be called as if by + + func (abfd, the_section, obj); + + It returns the first section for which FUNC returns true, otherwise +`NULL'. + +2.6.5.4 `bfd_get_unique_section_name' +..................................... + +*Synopsis* + char *bfd_get_unique_section_name + (bfd *abfd, const char *templat, int *count); + *Description* +Invent a section name that is unique in ABFD by tacking a dot and a +digit suffix onto the original TEMPLAT. If COUNT is non-NULL, then it +specifies the first number tried as a suffix to generate a unique name. +The value pointed to by COUNT will be incremented in this case. + +2.6.5.5 `bfd_make_section_old_way' +.................................. + +*Synopsis* + asection *bfd_make_section_old_way (bfd *abfd, const char *name); + *Description* +Create a new empty section called NAME and attach it to the end of the +chain of sections for the BFD ABFD. An attempt to create a section with +a name which is already in use returns its pointer without changing the +section chain. + + It has the funny name since this is the way it used to be before it +was rewritten.... + + Possible errors are: + * `bfd_error_invalid_operation' - If output has already started for + this BFD. + + * `bfd_error_no_memory' - If memory allocation fails. + +2.6.5.6 `bfd_make_section_anyway' +................................. + +*Synopsis* + asection *bfd_make_section_anyway (bfd *abfd, const char *name); + *Description* +Create a new empty section called NAME and attach it to the end of the +chain of sections for ABFD. Create a new section even if there is +already a section with that name. + + Return `NULL' and set `bfd_error' on error; possible errors are: + * `bfd_error_invalid_operation' - If output has already started for + ABFD. + + * `bfd_error_no_memory' - If memory allocation fails. + +2.6.5.7 `bfd_make_section' +.......................... + +*Synopsis* + asection *bfd_make_section (bfd *, const char *name); + *Description* +Like `bfd_make_section_anyway', but return `NULL' (without calling +bfd_set_error ()) without changing the section chain if there is +already a section named NAME. If there is an error, return `NULL' and +set `bfd_error'. + +2.6.5.8 `bfd_set_section_flags' +............................... + +*Synopsis* + bfd_boolean bfd_set_section_flags + (bfd *abfd, asection *sec, flagword flags); + *Description* +Set the attributes of the section SEC in the BFD ABFD to the value +FLAGS. Return `TRUE' on success, `FALSE' on error. Possible error +returns are: + + * `bfd_error_invalid_operation' - The section cannot have one or + more of the attributes requested. For example, a .bss section in + `a.out' may not have the `SEC_HAS_CONTENTS' field set. + +2.6.5.9 `bfd_map_over_sections' +............................... + +*Synopsis* + void bfd_map_over_sections + (bfd *abfd, + void (*func) (bfd *abfd, asection *sect, void *obj), + void *obj); + *Description* +Call the provided function FUNC for each section attached to the BFD +ABFD, passing OBJ as an argument. The function will be called as if by + + func (abfd, the_section, obj); + + This is the preferred method for iterating over sections; an +alternative would be to use a loop: + + section *p; + for (p = abfd->sections; p != NULL; p = p->next) + func (abfd, p, ...) + +2.6.5.10 `bfd_sections_find_if' +............................... + +*Synopsis* + asection *bfd_sections_find_if + (bfd *abfd, + bfd_boolean (*operation) (bfd *abfd, asection *sect, void *obj), + void *obj); + *Description* +Call the provided function OPERATION for each section attached to the +BFD ABFD, passing OBJ as an argument. The function will be called as if +by + + operation (abfd, the_section, obj); + + It returns the first section for which OPERATION returns true. + +2.6.5.11 `bfd_set_section_size' +............................... + +*Synopsis* + bfd_boolean bfd_set_section_size + (bfd *abfd, asection *sec, bfd_size_type val); + *Description* +Set SEC to the size VAL. If the operation is ok, then `TRUE' is +returned, else `FALSE'. + + Possible error returns: + * `bfd_error_invalid_operation' - Writing has started to the BFD, so + setting the size is invalid. + +2.6.5.12 `bfd_set_section_contents' +................................... + +*Synopsis* + bfd_boolean bfd_set_section_contents + (bfd *abfd, asection *section, const void *data, + file_ptr offset, bfd_size_type count); + *Description* +Sets the contents of the section SECTION in BFD ABFD to the data +starting in memory at DATA. The data is written to the output section +starting at offset OFFSET for COUNT octets. + + Normally `TRUE' is returned, else `FALSE'. Possible error returns +are: + * `bfd_error_no_contents' - The output section does not have the + `SEC_HAS_CONTENTS' attribute, so nothing can be written to it. + + * and some more too + This routine is front end to the back end function +`_bfd_set_section_contents'. + +2.6.5.13 `bfd_get_section_contents' +................................... + +*Synopsis* + bfd_boolean bfd_get_section_contents + (bfd *abfd, asection *section, void *location, file_ptr offset, + bfd_size_type count); + *Description* +Read data from SECTION in BFD ABFD into memory starting at LOCATION. +The data is read at an offset of OFFSET from the start of the input +section, and is read for COUNT bytes. + + If the contents of a constructor with the `SEC_CONSTRUCTOR' flag set +are requested or if the section does not have the `SEC_HAS_CONTENTS' +flag set, then the LOCATION is filled with zeroes. If no errors occur, +`TRUE' is returned, else `FALSE'. + +2.6.5.14 `bfd_malloc_and_get_section' +..................................... + +*Synopsis* + bfd_boolean bfd_malloc_and_get_section + (bfd *abfd, asection *section, bfd_byte **buf); + *Description* +Read all data from SECTION in BFD ABFD into a buffer, *BUF, malloc'd by +this function. + +2.6.5.15 `bfd_copy_private_section_data' +........................................ + +*Synopsis* + bfd_boolean bfd_copy_private_section_data + (bfd *ibfd, asection *isec, bfd *obfd, asection *osec); + *Description* +Copy private section information from ISEC in the BFD IBFD to the +section OSEC in the BFD OBFD. Return `TRUE' on success, `FALSE' on +error. Possible error returns are: + + * `bfd_error_no_memory' - Not enough memory exists to create private + data for OSEC. + + #define bfd_copy_private_section_data(ibfd, isection, obfd, osection) \ + BFD_SEND (obfd, _bfd_copy_private_section_data, \ + (ibfd, isection, obfd, osection)) + +2.6.5.16 `_bfd_strip_section_from_output' +......................................... + +*Synopsis* + void _bfd_strip_section_from_output + (struct bfd_link_info *info, asection *section); + *Description* +Remove SECTION from the output. If the output section becomes empty, +remove it from the output bfd. + + This function won't actually do anything except twiddle flags if +called too late in the linking process, when it's not safe to remove +sections. + +2.6.5.17 `bfd_generic_is_group_section' +....................................... + +*Synopsis* + bfd_boolean bfd_generic_is_group_section (bfd *, const asection *sec); + *Description* +Returns TRUE if SEC is a member of a group. + +2.6.5.18 `bfd_generic_discard_group' +.................................... + +*Synopsis* + bfd_boolean bfd_generic_discard_group (bfd *abfd, asection *group); + *Description* +Remove all members of GROUP from the output. + + +File: bfd.info, Node: Symbols, Next: Archives, Prev: Sections, Up: BFD front end + +2.7 Symbols +=========== + +BFD tries to maintain as much symbol information as it can when it +moves information from file to file. BFD passes information to +applications though the `asymbol' structure. When the application +requests the symbol table, BFD reads the table in the native form and +translates parts of it into the internal format. To maintain more than +the information passed to applications, some targets keep some +information "behind the scenes" in a structure only the particular back +end knows about. For example, the coff back end keeps the original +symbol table structure as well as the canonical structure when a BFD is +read in. On output, the coff back end can reconstruct the output symbol +table so that no information is lost, even information unique to coff +which BFD doesn't know or understand. If a coff symbol table were read, +but were written through an a.out back end, all the coff specific +information would be lost. The symbol table of a BFD is not necessarily +read in until a canonicalize request is made. Then the BFD back end +fills in a table provided by the application with pointers to the +canonical information. To output symbols, the application provides BFD +with a table of pointers to pointers to `asymbol's. This allows +applications like the linker to output a symbol as it was read, since +the "behind the scenes" information will be still available. + +* Menu: + +* Reading Symbols:: +* Writing Symbols:: +* Mini Symbols:: +* typedef asymbol:: +* symbol handling functions:: + + +File: bfd.info, Node: Reading Symbols, Next: Writing Symbols, Prev: Symbols, Up: Symbols + +2.7.1 Reading symbols +--------------------- + +There are two stages to reading a symbol table from a BFD: allocating +storage, and the actual reading process. This is an excerpt from an +application which reads the symbol table: + + long storage_needed; + asymbol **symbol_table; + long number_of_symbols; + long i; + + storage_needed = bfd_get_symtab_upper_bound (abfd); + + if (storage_needed < 0) + FAIL + + if (storage_needed == 0) + return; + + symbol_table = xmalloc (storage_needed); + ... + number_of_symbols = + bfd_canonicalize_symtab (abfd, symbol_table); + + if (number_of_symbols < 0) + FAIL + + for (i = 0; i < number_of_symbols; i++) + process_symbol (symbol_table[i]); + + All storage for the symbols themselves is in an objalloc connected +to the BFD; it is freed when the BFD is closed. + + +File: bfd.info, Node: Writing Symbols, Next: Mini Symbols, Prev: Reading Symbols, Up: Symbols + +2.7.2 Writing symbols +--------------------- + +Writing of a symbol table is automatic when a BFD open for writing is +closed. The application attaches a vector of pointers to pointers to +symbols to the BFD being written, and fills in the symbol count. The +close and cleanup code reads through the table provided and performs +all the necessary operations. The BFD output code must always be +provided with an "owned" symbol: one which has come from another BFD, +or one which has been created using `bfd_make_empty_symbol'. Here is an +example showing the creation of a symbol table with only one element: + + #include "bfd.h" + int main (void) + { + bfd *abfd; + asymbol *ptrs[2]; + asymbol *new; + + abfd = bfd_openw ("foo","a.out-sunos-big"); + bfd_set_format (abfd, bfd_object); + new = bfd_make_empty_symbol (abfd); + new->name = "dummy_symbol"; + new->section = bfd_make_section_old_way (abfd, ".text"); + new->flags = BSF_GLOBAL; + new->value = 0x12345; + + ptrs[0] = new; + ptrs[1] = 0; + + bfd_set_symtab (abfd, ptrs, 1); + bfd_close (abfd); + return 0; + } + + ./makesym + nm foo + 00012345 A dummy_symbol + + Many formats cannot represent arbitrary symbol information; for +instance, the `a.out' object format does not allow an arbitrary number +of sections. A symbol pointing to a section which is not one of +`.text', `.data' or `.bss' cannot be described. + + +File: bfd.info, Node: Mini Symbols, Next: typedef asymbol, Prev: Writing Symbols, Up: Symbols + +2.7.3 Mini Symbols +------------------ + +Mini symbols provide read-only access to the symbol table. They use +less memory space, but require more time to access. They can be useful +for tools like nm or objdump, which may have to handle symbol tables of +extremely large executables. + + The `bfd_read_minisymbols' function will read the symbols into +memory in an internal form. It will return a `void *' pointer to a +block of memory, a symbol count, and the size of each symbol. The +pointer is allocated using `malloc', and should be freed by the caller +when it is no longer needed. + + The function `bfd_minisymbol_to_symbol' will take a pointer to a +minisymbol, and a pointer to a structure returned by +`bfd_make_empty_symbol', and return a `asymbol' structure. The return +value may or may not be the same as the value from +`bfd_make_empty_symbol' which was passed in. + + +File: bfd.info, Node: typedef asymbol, Next: symbol handling functions, Prev: Mini Symbols, Up: Symbols + +2.7.4 typedef asymbol +--------------------- + +An `asymbol' has the form: + + + typedef struct bfd_symbol + { + /* A pointer to the BFD which owns the symbol. This information + is necessary so that a back end can work out what additional + information (invisible to the application writer) is carried + with the symbol. + + This field is *almost* redundant, since you can use section->owner + instead, except that some symbols point to the global sections + bfd_{abs,com,und}_section. This could be fixed by making + these globals be per-bfd (or per-target-flavor). FIXME. */ + struct bfd *the_bfd; /* Use bfd_asymbol_bfd(sym) to access this field. */ + + /* The text of the symbol. The name is left alone, and not copied; the + application may not alter it. */ + const char *name; + + /* The value of the symbol. This really should be a union of a + numeric value with a pointer, since some flags indicate that + a pointer to another symbol is stored here. */ + symvalue value; + + /* Attributes of a symbol. */ + #define BSF_NO_FLAGS 0x00 + + /* The symbol has local scope; `static' in `C'. The value + is the offset into the section of the data. */ + #define BSF_LOCAL 0x01 + + /* The symbol has global scope; initialized data in `C'. The + value is the offset into the section of the data. */ + #define BSF_GLOBAL 0x02 + + /* The symbol has global scope and is exported. The value is + the offset into the section of the data. */ + #define BSF_EXPORT BSF_GLOBAL /* No real difference. */ + + /* A normal C symbol would be one of: + `BSF_LOCAL', `BSF_FORT_COMM', `BSF_UNDEFINED' or + `BSF_GLOBAL'. */ + + /* The symbol is a debugging record. The value has an arbitrary + meaning, unless BSF_DEBUGGING_RELOC is also set. */ + #define BSF_DEBUGGING 0x08 + + /* The symbol denotes a function entry point. Used in ELF, + perhaps others someday. */ + #define BSF_FUNCTION 0x10 + + /* Used by the linker. */ + #define BSF_KEEP 0x20 + #define BSF_KEEP_G 0x40 + + /* A weak global symbol, overridable without warnings by + a regular global symbol of the same name. */ + #define BSF_WEAK 0x80 + + /* This symbol was created to point to a section, e.g. ELF's + STT_SECTION symbols. */ + #define BSF_SECTION_SYM 0x100 + + /* The symbol used to be a common symbol, but now it is + allocated. */ + #define BSF_OLD_COMMON 0x200 + + /* The default value for common data. */ + #define BFD_FORT_COMM_DEFAULT_VALUE 0 + + /* In some files the type of a symbol sometimes alters its + location in an output file - ie in coff a `ISFCN' symbol + which is also `C_EXT' symbol appears where it was + declared and not at the end of a section. This bit is set + by the target BFD part to convey this information. */ + #define BSF_NOT_AT_END 0x400 + + /* Signal that the symbol is the label of constructor section. */ + #define BSF_CONSTRUCTOR 0x800 + + /* Signal that the symbol is a warning symbol. The name is a + warning. The name of the next symbol is the one to warn about; + if a reference is made to a symbol with the same name as the next + symbol, a warning is issued by the linker. */ + #define BSF_WARNING 0x1000 + + /* Signal that the symbol is indirect. This symbol is an indirect + pointer to the symbol with the same name as the next symbol. */ + #define BSF_INDIRECT 0x2000 + + /* BSF_FILE marks symbols that contain a file name. This is used + for ELF STT_FILE symbols. */ + #define BSF_FILE 0x4000 + + /* Symbol is from dynamic linking information. */ + #define BSF_DYNAMIC 0x8000 + + /* The symbol denotes a data object. Used in ELF, and perhaps + others someday. */ + #define BSF_OBJECT 0x10000 + + /* This symbol is a debugging symbol. The value is the offset + into the section of the data. BSF_DEBUGGING should be set + as well. */ + #define BSF_DEBUGGING_RELOC 0x20000 + + /* This symbol is thread local. Used in ELF. */ + #define BSF_THREAD_LOCAL 0x40000 + + flagword flags; + + /* A pointer to the section to which this symbol is + relative. This will always be non NULL, there are special + sections for undefined and absolute symbols. */ + struct bfd_section *section; + + /* Back end special data. */ + union + { + void *p; + bfd_vma i; + } + udata; + } + asymbol; + + +File: bfd.info, Node: symbol handling functions, Prev: typedef asymbol, Up: Symbols + +2.7.5 Symbol handling functions +------------------------------- + +2.7.5.1 `bfd_get_symtab_upper_bound' +.................................... + +*Description* +Return the number of bytes required to store a vector of pointers to +`asymbols' for all the symbols in the BFD ABFD, including a terminal +NULL pointer. If there are no symbols in the BFD, then return 0. If an +error occurs, return -1. + #define bfd_get_symtab_upper_bound(abfd) \ + BFD_SEND (abfd, _bfd_get_symtab_upper_bound, (abfd)) + +2.7.5.2 `bfd_is_local_label' +............................ + +*Synopsis* + bfd_boolean bfd_is_local_label (bfd *abfd, asymbol *sym); + *Description* +Return TRUE if the given symbol SYM in the BFD ABFD is a compiler +generated local label, else return FALSE. + +2.7.5.3 `bfd_is_local_label_name' +................................. + +*Synopsis* + bfd_boolean bfd_is_local_label_name (bfd *abfd, const char *name); + *Description* +Return TRUE if a symbol with the name NAME in the BFD ABFD is a +compiler generated local label, else return FALSE. This just checks +whether the name has the form of a local label. + #define bfd_is_local_label_name(abfd, name) \ + BFD_SEND (abfd, _bfd_is_local_label_name, (abfd, name)) + +2.7.5.4 `bfd_is_target_special_symbol' +...................................... + +*Synopsis* + bfd_boolean bfd_is_target_special_symbol (bfd *abfd, asymbol *sym); + *Description* +Return TRUE iff a symbol SYM in the BFD ABFD is something special to +the particular target represented by the BFD. Such symbols should +normally not be mentioned to the user. + #define bfd_is_target_special_symbol(abfd, sym) \ + BFD_SEND (abfd, _bfd_is_target_special_symbol, (abfd, sym)) + +2.7.5.5 `bfd_canonicalize_symtab' +................................. + +*Description* +Read the symbols from the BFD ABFD, and fills in the vector LOCATION +with pointers to the symbols and a trailing NULL. Return the actual +number of symbol pointers, not including the NULL. + #define bfd_canonicalize_symtab(abfd, location) \ + BFD_SEND (abfd, _bfd_canonicalize_symtab, (abfd, location)) + +2.7.5.6 `bfd_set_symtab' +........................ + +*Synopsis* + bfd_boolean bfd_set_symtab + (bfd *abfd, asymbol **location, unsigned int count); + *Description* +Arrange that when the output BFD ABFD is closed, the table LOCATION of +COUNT pointers to symbols will be written. + +2.7.5.7 `bfd_print_symbol_vandf' +................................ + +*Synopsis* + void bfd_print_symbol_vandf (bfd *abfd, void *file, asymbol *symbol); + *Description* +Print the value and flags of the SYMBOL supplied to the stream FILE. + +2.7.5.8 `bfd_make_empty_symbol' +............................... + +*Description* +Create a new `asymbol' structure for the BFD ABFD and return a pointer +to it. + + This routine is necessary because each back end has private +information surrounding the `asymbol'. Building your own `asymbol' and +pointing to it will not create the private information, and will cause +problems later on. + #define bfd_make_empty_symbol(abfd) \ + BFD_SEND (abfd, _bfd_make_empty_symbol, (abfd)) + +2.7.5.9 `_bfd_generic_make_empty_symbol' +........................................ + +*Synopsis* + asymbol *_bfd_generic_make_empty_symbol (bfd *); + *Description* +Create a new `asymbol' structure for the BFD ABFD and return a pointer +to it. Used by core file routines, binary back-end and anywhere else +where no private info is needed. + +2.7.5.10 `bfd_make_debug_symbol' +................................ + +*Description* +Create a new `asymbol' structure for the BFD ABFD, to be used as a +debugging symbol. Further details of its use have yet to be worked out. + #define bfd_make_debug_symbol(abfd,ptr,size) \ + BFD_SEND (abfd, _bfd_make_debug_symbol, (abfd, ptr, size)) + +2.7.5.11 `bfd_decode_symclass' +.............................. + +*Description* +Return a character corresponding to the symbol class of SYMBOL, or '?' +for an unknown class. + + *Synopsis* + int bfd_decode_symclass (asymbol *symbol); + +2.7.5.12 `bfd_is_undefined_symclass' +.................................... + +*Description* +Returns non-zero if the class symbol returned by bfd_decode_symclass +represents an undefined symbol. Returns zero otherwise. + + *Synopsis* + bfd_boolean bfd_is_undefined_symclass (int symclass); + +2.7.5.13 `bfd_symbol_info' +.......................... + +*Description* +Fill in the basic info about symbol that nm needs. Additional info may +be added by the back-ends after calling this function. + + *Synopsis* + void bfd_symbol_info (asymbol *symbol, symbol_info *ret); + +2.7.5.14 `bfd_copy_private_symbol_data' +....................................... + +*Synopsis* + bfd_boolean bfd_copy_private_symbol_data + (bfd *ibfd, asymbol *isym, bfd *obfd, asymbol *osym); + *Description* +Copy private symbol information from ISYM in the BFD IBFD to the symbol +OSYM in the BFD OBFD. Return `TRUE' on success, `FALSE' on error. +Possible error returns are: + + * `bfd_error_no_memory' - Not enough memory exists to create private + data for OSEC. + + #define bfd_copy_private_symbol_data(ibfd, isymbol, obfd, osymbol) \ + BFD_SEND (obfd, _bfd_copy_private_symbol_data, \ + (ibfd, isymbol, obfd, osymbol)) + + +File: bfd.info, Node: Archives, Next: Formats, Prev: Symbols, Up: BFD front end + +2.8 Archives +============ + +*Description* +An archive (or library) is just another BFD. It has a symbol table, +although there's not much a user program will do with it. + + The big difference between an archive BFD and an ordinary BFD is +that the archive doesn't have sections. Instead it has a chain of BFDs +that are considered its contents. These BFDs can be manipulated like +any other. The BFDs contained in an archive opened for reading will +all be opened for reading. You may put either input or output BFDs +into an archive opened for output; they will be handled correctly when +the archive is closed. + + Use `bfd_openr_next_archived_file' to step through the contents of +an archive opened for input. You don't have to read the entire archive +if you don't want to! Read it until you find what you want. + + Archive contents of output BFDs are chained through the `next' +pointer in a BFD. The first one is findable through the `archive_head' +slot of the archive. Set it with `bfd_set_archive_head' (q.v.). A +given BFD may be in only one open output archive at a time. + + As expected, the BFD archive code is more general than the archive +code of any given environment. BFD archives may contain files of +different formats (e.g., a.out and coff) and even different +architectures. You may even place archives recursively into archives! + + This can cause unexpected confusion, since some archive formats are +more expressive than others. For instance, Intel COFF archives can +preserve long filenames; SunOS a.out archives cannot. If you move a +file from the first to the second format and back again, the filename +may be truncated. Likewise, different a.out environments have different +conventions as to how they truncate filenames, whether they preserve +directory names in filenames, etc. When interoperating with native +tools, be sure your files are homogeneous. + + Beware: most of these formats do not react well to the presence of +spaces in filenames. We do the best we can, but can't always handle +this case due to restrictions in the format of archives. Many Unix +utilities are braindead in regards to spaces and such in filenames +anyway, so this shouldn't be much of a restriction. + + Archives are supported in BFD in `archive.c'. + +2.8.0.1 `bfd_get_next_mapent' +............................. + +*Synopsis* + symindex bfd_get_next_mapent + (bfd *abfd, symindex previous, carsym **sym); + *Description* +Step through archive ABFD's symbol table (if it has one). Successively +update SYM with the next symbol's information, returning that symbol's +(internal) index into the symbol table. + + Supply `BFD_NO_MORE_SYMBOLS' as the PREVIOUS entry to get the first +one; returns `BFD_NO_MORE_SYMBOLS' when you've already got the last one. + + A `carsym' is a canonical archive symbol. The only user-visible +element is its name, a null-terminated string. + +2.8.0.2 `bfd_set_archive_head' +.............................. + +*Synopsis* + bfd_boolean bfd_set_archive_head (bfd *output, bfd *new_head); + *Description* +Set the head of the chain of BFDs contained in the archive OUTPUT to +NEW_HEAD. + +2.8.0.3 `bfd_openr_next_archived_file' +...................................... + +*Synopsis* + bfd *bfd_openr_next_archived_file (bfd *archive, bfd *previous); + *Description* +Provided a BFD, ARCHIVE, containing an archive and NULL, open an input +BFD on the first contained element and returns that. Subsequent calls +should pass the archive and the previous return value to return a +created BFD to the next contained element. NULL is returned when there +are no more. + + +File: bfd.info, Node: Formats, Next: Relocations, Prev: Archives, Up: BFD front end + +2.9 File formats +================ + +A format is a BFD concept of high level file contents type. The formats +supported by BFD are: + + * `bfd_object' + The BFD may contain data, symbols, relocations and debug info. + + * `bfd_archive' + The BFD contains other BFDs and an optional index. + + * `bfd_core' + The BFD contains the result of an executable core dump. + +2.9.0.1 `bfd_check_format' +.......................... + +*Synopsis* + bfd_boolean bfd_check_format (bfd *abfd, bfd_format format); + *Description* +Verify if the file attached to the BFD ABFD is compatible with the +format FORMAT (i.e., one of `bfd_object', `bfd_archive' or `bfd_core'). + + If the BFD has been set to a specific target before the call, only +the named target and format combination is checked. If the target has +not been set, or has been set to `default', then all the known target +backends is interrogated to determine a match. If the default target +matches, it is used. If not, exactly one target must recognize the +file, or an error results. + + The function returns `TRUE' on success, otherwise `FALSE' with one +of the following error codes: + + * `bfd_error_invalid_operation' - if `format' is not one of + `bfd_object', `bfd_archive' or `bfd_core'. + + * `bfd_error_system_call' - if an error occured during a read - even + some file mismatches can cause bfd_error_system_calls. + + * `file_not_recognised' - none of the backends recognised the file + format. + + * `bfd_error_file_ambiguously_recognized' - more than one backend + recognised the file format. + +2.9.0.2 `bfd_check_format_matches' +.................................. + +*Synopsis* + bfd_boolean bfd_check_format_matches + (bfd *abfd, bfd_format format, char ***matching); + *Description* +Like `bfd_check_format', except when it returns FALSE with `bfd_errno' +set to `bfd_error_file_ambiguously_recognized'. In that case, if +MATCHING is not NULL, it will be filled in with a NULL-terminated list +of the names of the formats that matched, allocated with `malloc'. +Then the user may choose a format and try again. + + When done with the list that MATCHING points to, the caller should +free it. + +2.9.0.3 `bfd_set_format' +........................ + +*Synopsis* + bfd_boolean bfd_set_format (bfd *abfd, bfd_format format); + *Description* +This function sets the file format of the BFD ABFD to the format +FORMAT. If the target set in the BFD does not support the format +requested, the format is invalid, or the BFD is not open for writing, +then an error occurs. + +2.9.0.4 `bfd_format_string' +........................... + +*Synopsis* + const char *bfd_format_string (bfd_format format); + *Description* +Return a pointer to a const string `invalid', `object', `archive', +`core', or `unknown', depending upon the value of FORMAT. + + +File: bfd.info, Node: Relocations, Next: Core Files, Prev: Formats, Up: BFD front end + +2.10 Relocations +================ + +BFD maintains relocations in much the same way it maintains symbols: +they are left alone until required, then read in en-masse and +translated into an internal form. A common routine +`bfd_perform_relocation' acts upon the canonical form to do the fixup. + + Relocations are maintained on a per section basis, while symbols are +maintained on a per BFD basis. + + All that a back end has to do to fit the BFD interface is to create +a `struct reloc_cache_entry' for each relocation in a particular +section, and fill in the right bits of the structures. + +* Menu: + +* typedef arelent:: +* howto manager:: + + +File: bfd.info, Node: typedef arelent, Next: howto manager, Prev: Relocations, Up: Relocations + +2.10.1 typedef arelent +---------------------- + +This is the structure of a relocation entry: + + + typedef enum bfd_reloc_status + { + /* No errors detected. */ + bfd_reloc_ok, + + /* The relocation was performed, but there was an overflow. */ + bfd_reloc_overflow, + + /* The address to relocate was not within the section supplied. */ + bfd_reloc_outofrange, + + /* Used by special functions. */ + bfd_reloc_continue, + + /* Unsupported relocation size requested. */ + bfd_reloc_notsupported, + + /* Unused. */ + bfd_reloc_other, + + /* The symbol to relocate against was undefined. */ + bfd_reloc_undefined, + + /* The relocation was performed, but may not be ok - presently + generated only when linking i960 coff files with i960 b.out + symbols. If this type is returned, the error_message argument + to bfd_perform_relocation will be set. */ + bfd_reloc_dangerous + } + bfd_reloc_status_type; + + + typedef struct reloc_cache_entry + { + /* A pointer into the canonical table of pointers. */ + struct bfd_symbol **sym_ptr_ptr; + + /* offset in section. */ + bfd_size_type address; + + /* addend for relocation value. */ + bfd_vma addend; + + /* Pointer to how to perform the required relocation. */ + reloc_howto_type *howto; + + } + arelent; + *Description* +Here is a description of each of the fields within an `arelent': + + * `sym_ptr_ptr' + The symbol table pointer points to a pointer to the symbol +associated with the relocation request. It is the pointer into the +table returned by the back end's `canonicalize_symtab' action. *Note +Symbols::. The symbol is referenced through a pointer to a pointer so +that tools like the linker can fix up all the symbols of the same name +by modifying only one pointer. The relocation routine looks in the +symbol and uses the base of the section the symbol is attached to and +the value of the symbol as the initial relocation offset. If the symbol +pointer is zero, then the section provided is looked up. + + * `address' + The `address' field gives the offset in bytes from the base of the +section data which owns the relocation record to the first byte of +relocatable information. The actual data relocated will be relative to +this point; for example, a relocation type which modifies the bottom +two bytes of a four byte word would not touch the first byte pointed to +in a big endian world. + + * `addend' + The `addend' is a value provided by the back end to be added (!) to +the relocation offset. Its interpretation is dependent upon the howto. +For example, on the 68k the code: + + char foo[]; + main() + { + return foo[0x12345678]; + } + + Could be compiled into: + + linkw fp,#-4 + moveb @#12345678,d0 + extbl d0 + unlk fp + rts + + This could create a reloc pointing to `foo', but leave the offset in +the data, something like: + + RELOCATION RECORDS FOR [.text]: + offset type value + 00000006 32 _foo + + 00000000 4e56 fffc ; linkw fp,#-4 + 00000004 1039 1234 5678 ; moveb @#12345678,d0 + 0000000a 49c0 ; extbl d0 + 0000000c 4e5e ; unlk fp + 0000000e 4e75 ; rts + + Using coff and an 88k, some instructions don't have enough space in +them to represent the full address range, and pointers have to be +loaded in two parts. So you'd get something like: + + or.u r13,r0,hi16(_foo+0x12345678) + ld.b r2,r13,lo16(_foo+0x12345678) + jmp r1 + + This should create two relocs, both pointing to `_foo', and with +0x12340000 in their addend field. The data would consist of: + + RELOCATION RECORDS FOR [.text]: + offset type value + 00000002 HVRT16 _foo+0x12340000 + 00000006 LVRT16 _foo+0x12340000 + + 00000000 5da05678 ; or.u r13,r0,0x5678 + 00000004 1c4d5678 ; ld.b r2,r13,0x5678 + 00000008 f400c001 ; jmp r1 + + The relocation routine digs out the value from the data, adds it to +the addend to get the original offset, and then adds the value of +`_foo'. Note that all 32 bits have to be kept around somewhere, to cope +with carry from bit 15 to bit 16. + + One further example is the sparc and the a.out format. The sparc has +a similar problem to the 88k, in that some instructions don't have room +for an entire offset, but on the sparc the parts are created in odd +sized lumps. The designers of the a.out format chose to not use the +data within the section for storing part of the offset; all the offset +is kept within the reloc. Anything in the data should be ignored. + + save %sp,-112,%sp + sethi %hi(_foo+0x12345678),%g2 + ldsb [%g2+%lo(_foo+0x12345678)],%i0 + ret + restore + + Both relocs contain a pointer to `foo', and the offsets contain junk. + + RELOCATION RECORDS FOR [.text]: + offset type value + 00000004 HI22 _foo+0x12345678 + 00000008 LO10 _foo+0x12345678 + + 00000000 9de3bf90 ; save %sp,-112,%sp + 00000004 05000000 ; sethi %hi(_foo+0),%g2 + 00000008 f048a000 ; ldsb [%g2+%lo(_foo+0)],%i0 + 0000000c 81c7e008 ; ret + 00000010 81e80000 ; restore + + * `howto' + The `howto' field can be imagined as a relocation instruction. It is +a pointer to a structure which contains information on what to do with +all of the other information in the reloc record and data section. A +back end would normally have a relocation instruction set and turn +relocations into pointers to the correct structure on input - but it +would be possible to create each howto field on demand. + +2.10.1.1 `enum complain_overflow' +................................. + +Indicates what sort of overflow checking should be done when performing +a relocation. + + + enum complain_overflow + { + /* Do not complain on overflow. */ + complain_overflow_dont, + + /* Complain if the bitfield overflows, whether it is considered + as signed or unsigned. */ + complain_overflow_bitfield, + + /* Complain if the value overflows when considered as signed + number. */ + complain_overflow_signed, + + /* Complain if the value overflows when considered as an + unsigned number. */ + complain_overflow_unsigned + }; + +2.10.1.2 `reloc_howto_type' +........................... + +The `reloc_howto_type' is a structure which contains all the +information that libbfd needs to know to tie up a back end's data. + + struct bfd_symbol; /* Forward declaration. */ + + struct reloc_howto_struct + { + /* The type field has mainly a documentary use - the back end can + do what it wants with it, though normally the back end's + external idea of what a reloc number is stored + in this field. For example, a PC relative word relocation + in a coff environment has the type 023 - because that's + what the outside world calls a R_PCRWORD reloc. */ + unsigned int type; + + /* The value the final relocation is shifted right by. This drops + unwanted data from the relocation. */ + unsigned int rightshift; + + /* The size of the item to be relocated. This is *not* a + power-of-two measure. To get the number of bytes operated + on by a type of relocation, use bfd_get_reloc_size. */ + int size; + + /* The number of bits in the item to be relocated. This is used + when doing overflow checking. */ + unsigned int bitsize; + + /* Notes that the relocation is relative to the location in the + data section of the addend. The relocation function will + subtract from the relocation value the address of the location + being relocated. */ + bfd_boolean pc_relative; + + /* The bit position of the reloc value in the destination. + The relocated value is left shifted by this amount. */ + unsigned int bitpos; + + /* What type of overflow error should be checked for when + relocating. */ + enum complain_overflow complain_on_overflow; + + /* If this field is non null, then the supplied function is + called rather than the normal function. This allows really + strange relocation methods to be accommodated (e.g., i960 callj + instructions). */ + bfd_reloc_status_type (*special_function) + (bfd *, arelent *, struct bfd_symbol *, void *, asection *, + bfd *, char **); + + /* The textual name of the relocation type. */ + char *name; + + /* Some formats record a relocation addend in the section contents + rather than with the relocation. For ELF formats this is the + distinction between USE_REL and USE_RELA (though the code checks + for USE_REL == 1/0). The value of this field is TRUE if the + addend is recorded with the section contents; when performing a + partial link (ld -r) the section contents (the data) will be + modified. The value of this field is FALSE if addends are + recorded with the relocation (in arelent.addend); when performing + a partial link the relocation will be modified. + All relocations for all ELF USE_RELA targets should set this field + to FALSE (values of TRUE should be looked on with suspicion). + However, the converse is not true: not all relocations of all ELF + USE_REL targets set this field to TRUE. Why this is so is peculiar + to each particular target. For relocs that aren't used in partial + links (e.g. GOT stuff) it doesn't matter what this is set to. */ + bfd_boolean partial_inplace; + + /* src_mask selects the part of the instruction (or data) to be used + in the relocation sum. If the target relocations don't have an + addend in the reloc, eg. ELF USE_REL, src_mask will normally equal + dst_mask to extract the addend from the section contents. If + relocations do have an addend in the reloc, eg. ELF USE_RELA, this + field should be zero. Non-zero values for ELF USE_RELA targets are + bogus as in those cases the value in the dst_mask part of the + section contents should be treated as garbage. */ + bfd_vma src_mask; + + /* dst_mask selects which parts of the instruction (or data) are + replaced with a relocated value. */ + bfd_vma dst_mask; + + /* When some formats create PC relative instructions, they leave + the value of the pc of the place being relocated in the offset + slot of the instruction, so that a PC relative relocation can + be made just by adding in an ordinary offset (e.g., sun3 a.out). + Some formats leave the displacement part of an instruction + empty (e.g., m88k bcs); this flag signals the fact. */ + bfd_boolean pcrel_offset; + }; + +2.10.1.3 `The HOWTO Macro' +.......................... + +*Description* +The HOWTO define is horrible and will go away. + #define HOWTO(C, R, S, B, P, BI, O, SF, NAME, INPLACE, MASKSRC, MASKDST, PC) \ + { (unsigned) C, R, S, B, P, BI, O, SF, NAME, INPLACE, MASKSRC, MASKDST, PC } + + *Description* +And will be replaced with the totally magic way. But for the moment, we +are compatible, so do it this way. + #define NEWHOWTO(FUNCTION, NAME, SIZE, REL, IN) \ + HOWTO (0, 0, SIZE, 0, REL, 0, complain_overflow_dont, FUNCTION, \ + NAME, FALSE, 0, 0, IN) + + *Description* +This is used to fill in an empty howto entry in an array. + #define EMPTY_HOWTO(C) \ + HOWTO ((C), 0, 0, 0, FALSE, 0, complain_overflow_dont, NULL, \ + NULL, FALSE, 0, 0, FALSE) + + *Description* +Helper routine to turn a symbol into a relocation value. + #define HOWTO_PREPARE(relocation, symbol) \ + { \ + if (symbol != NULL) \ + { \ + if (bfd_is_com_section (symbol->section)) \ + { \ + relocation = 0; \ + } \ + else \ + { \ + relocation = symbol->value; \ + } \ + } \ + } + +2.10.1.4 `bfd_get_reloc_size' +............................. + +*Synopsis* + unsigned int bfd_get_reloc_size (reloc_howto_type *); + *Description* +For a reloc_howto_type that operates on a fixed number of bytes, this +returns the number of bytes operated on. + +2.10.1.5 `arelent_chain' +........................ + +*Description* +How relocs are tied together in an `asection': + typedef struct relent_chain + { + arelent relent; + struct relent_chain *next; + } + arelent_chain; + +2.10.1.6 `bfd_check_overflow' +............................. + +*Synopsis* + bfd_reloc_status_type bfd_check_overflow + (enum complain_overflow how, + unsigned int bitsize, + unsigned int rightshift, + unsigned int addrsize, + bfd_vma relocation); + *Description* +Perform overflow checking on RELOCATION which has BITSIZE significant +bits and will be shifted right by RIGHTSHIFT bits, on a machine with +addresses containing ADDRSIZE significant bits. The result is either of +`bfd_reloc_ok' or `bfd_reloc_overflow'. + +2.10.1.7 `bfd_perform_relocation' +................................. + +*Synopsis* + bfd_reloc_status_type bfd_perform_relocation + (bfd *abfd, + arelent *reloc_entry, + void *data, + asection *input_section, + bfd *output_bfd, + char **error_message); + *Description* +If OUTPUT_BFD is supplied to this function, the generated image will be +relocatable; the relocations are copied to the output file after they +have been changed to reflect the new state of the world. There are two +ways of reflecting the results of partial linkage in an output file: by +modifying the output data in place, and by modifying the relocation +record. Some native formats (e.g., basic a.out and basic coff) have no +way of specifying an addend in the relocation type, so the addend has +to go in the output data. This is no big deal since in these formats +the output data slot will always be big enough for the addend. Complex +reloc types with addends were invented to solve just this problem. The +ERROR_MESSAGE argument is set to an error message if this return +`bfd_reloc_dangerous'. + +2.10.1.8 `bfd_install_relocation' +................................. + +*Synopsis* + bfd_reloc_status_type bfd_install_relocation + (bfd *abfd, + arelent *reloc_entry, + void *data, bfd_vma data_start, + asection *input_section, + char **error_message); + *Description* +This looks remarkably like `bfd_perform_relocation', except it does not +expect that the section contents have been filled in. I.e., it's +suitable for use when creating, rather than applying a relocation. + + For now, this function should be considered reserved for the +assembler. + + +File: bfd.info, Node: howto manager, Prev: typedef arelent, Up: Relocations + +2.11 The howto manager +====================== + +When an application wants to create a relocation, but doesn't know what +the target machine might call it, it can find out by using this bit of +code. + +2.11.0.1 `bfd_reloc_code_type' +.............................. + +*Description* +The insides of a reloc code. The idea is that, eventually, there will +be one enumerator for every type of relocation we ever do. Pass one of +these values to `bfd_reloc_type_lookup', and it'll return a howto +pointer. + + This does mean that the application must determine the correct +enumerator value; you can't get a howto pointer from a random set of +attributes. + + Here are the possible values for `enum bfd_reloc_code_real': + + -- : BFD_RELOC_64 + -- : BFD_RELOC_32 + -- : BFD_RELOC_26 + -- : BFD_RELOC_24 + -- : BFD_RELOC_16 + -- : BFD_RELOC_14 + -- : BFD_RELOC_8 + Basic absolute relocations of N bits. + + -- : BFD_RELOC_64_PCREL + -- : BFD_RELOC_32_PCREL + -- : BFD_RELOC_24_PCREL + -- : BFD_RELOC_16_PCREL + -- : BFD_RELOC_12_PCREL + -- : BFD_RELOC_8_PCREL + PC-relative relocations. Sometimes these are relative to the + address of the relocation itself; sometimes they are relative to + the start of the section containing the relocation. It depends on + the specific target. + + The 24-bit relocation is used in some Intel 960 configurations. + + -- : BFD_RELOC_32_SECREL + Section relative relocations. Some targets need this for DWARF2. + + -- : BFD_RELOC_32_GOT_PCREL + -- : BFD_RELOC_16_GOT_PCREL + -- : BFD_RELOC_8_GOT_PCREL + -- : BFD_RELOC_32_GOTOFF + -- : BFD_RELOC_16_GOTOFF + -- : BFD_RELOC_LO16_GOTOFF + -- : BFD_RELOC_HI16_GOTOFF + -- : BFD_RELOC_HI16_S_GOTOFF + -- : BFD_RELOC_8_GOTOFF + -- : BFD_RELOC_64_PLT_PCREL + -- : BFD_RELOC_32_PLT_PCREL + -- : BFD_RELOC_24_PLT_PCREL + -- : BFD_RELOC_16_PLT_PCREL + -- : BFD_RELOC_8_PLT_PCREL + -- : BFD_RELOC_64_PLTOFF + -- : BFD_RELOC_32_PLTOFF + -- : BFD_RELOC_16_PLTOFF + -- : BFD_RELOC_LO16_PLTOFF + -- : BFD_RELOC_HI16_PLTOFF + -- : BFD_RELOC_HI16_S_PLTOFF + -- : BFD_RELOC_8_PLTOFF + For ELF. + + -- : BFD_RELOC_68K_GLOB_DAT + -- : BFD_RELOC_68K_JMP_SLOT + -- : BFD_RELOC_68K_RELATIVE + Relocations used by 68K ELF. + + -- : BFD_RELOC_32_BASEREL + -- : BFD_RELOC_16_BASEREL + -- : BFD_RELOC_LO16_BASEREL + -- : BFD_RELOC_HI16_BASEREL + -- : BFD_RELOC_HI16_S_BASEREL + -- : BFD_RELOC_8_BASEREL + -- : BFD_RELOC_RVA + Linkage-table relative. + + -- : BFD_RELOC_8_FFnn + Absolute 8-bit relocation, but used to form an address like 0xFFnn. + + -- : BFD_RELOC_32_PCREL_S2 + -- : BFD_RELOC_16_PCREL_S2 + -- : BFD_RELOC_23_PCREL_S2 + These PC-relative relocations are stored as word displacements - + i.e., byte displacements shifted right two bits. The 30-bit word + displacement (<<32_PCREL_S2>> - 32 bits, shifted 2) is used on the + SPARC. (SPARC tools generally refer to this as <<WDISP30>>.) The + signed 16-bit displacement is used on the MIPS, and the 23-bit + displacement is used on the Alpha. + + -- : BFD_RELOC_HI22 + -- : BFD_RELOC_LO10 + High 22 bits and low 10 bits of 32-bit value, placed into lower + bits of the target word. These are used on the SPARC. + + -- : BFD_RELOC_GPREL16 + -- : BFD_RELOC_GPREL32 + For systems that allocate a Global Pointer register, these are + displacements off that register. These relocation types are + handled specially, because the value the register will have is + decided relatively late. + + -- : BFD_RELOC_I960_CALLJ + Reloc types used for i960/b.out. + + -- : BFD_RELOC_NONE + -- : BFD_RELOC_SPARC_WDISP22 + -- : BFD_RELOC_SPARC22 + -- : BFD_RELOC_SPARC13 + -- : BFD_RELOC_SPARC_GOT10 + -- : BFD_RELOC_SPARC_GOT13 + -- : BFD_RELOC_SPARC_GOT22 + -- : BFD_RELOC_SPARC_PC10 + -- : BFD_RELOC_SPARC_PC22 + -- : BFD_RELOC_SPARC_WPLT30 + -- : BFD_RELOC_SPARC_COPY + -- : BFD_RELOC_SPARC_GLOB_DAT + -- : BFD_RELOC_SPARC_JMP_SLOT + -- : BFD_RELOC_SPARC_RELATIVE + -- : BFD_RELOC_SPARC_UA16 + -- : BFD_RELOC_SPARC_UA32 + -- : BFD_RELOC_SPARC_UA64 + SPARC ELF relocations. There is probably some overlap with other + relocation types already defined. + + -- : BFD_RELOC_SPARC_BASE13 + -- : BFD_RELOC_SPARC_BASE22 + I think these are specific to SPARC a.out (e.g., Sun 4). + + -- : BFD_RELOC_SPARC_64 + -- : BFD_RELOC_SPARC_10 + -- : BFD_RELOC_SPARC_11 + -- : BFD_RELOC_SPARC_OLO10 + -- : BFD_RELOC_SPARC_HH22 + -- : BFD_RELOC_SPARC_HM10 + -- : BFD_RELOC_SPARC_LM22 + -- : BFD_RELOC_SPARC_PC_HH22 + -- : BFD_RELOC_SPARC_PC_HM10 + -- : BFD_RELOC_SPARC_PC_LM22 + -- : BFD_RELOC_SPARC_WDISP16 + -- : BFD_RELOC_SPARC_WDISP19 + -- : BFD_RELOC_SPARC_7 + -- : BFD_RELOC_SPARC_6 + -- : BFD_RELOC_SPARC_5 + -- : BFD_RELOC_SPARC_DISP64 + -- : BFD_RELOC_SPARC_PLT32 + -- : BFD_RELOC_SPARC_PLT64 + -- : BFD_RELOC_SPARC_HIX22 + -- : BFD_RELOC_SPARC_LOX10 + -- : BFD_RELOC_SPARC_H44 + -- : BFD_RELOC_SPARC_M44 + -- : BFD_RELOC_SPARC_L44 + -- : BFD_RELOC_SPARC_REGISTER + SPARC64 relocations + + -- : BFD_RELOC_SPARC_REV32 + SPARC little endian relocation + + -- : BFD_RELOC_SPARC_TLS_GD_HI22 + -- : BFD_RELOC_SPARC_TLS_GD_LO10 + -- : BFD_RELOC_SPARC_TLS_GD_ADD + -- : BFD_RELOC_SPARC_TLS_GD_CALL + -- : BFD_RELOC_SPARC_TLS_LDM_HI22 + -- : BFD_RELOC_SPARC_TLS_LDM_LO10 + -- : BFD_RELOC_SPARC_TLS_LDM_ADD + -- : BFD_RELOC_SPARC_TLS_LDM_CALL + -- : BFD_RELOC_SPARC_TLS_LDO_HIX22 + -- : BFD_RELOC_SPARC_TLS_LDO_LOX10 + -- : BFD_RELOC_SPARC_TLS_LDO_ADD + -- : BFD_RELOC_SPARC_TLS_IE_HI22 + -- : BFD_RELOC_SPARC_TLS_IE_LO10 + -- : BFD_RELOC_SPARC_TLS_IE_LD + -- : BFD_RELOC_SPARC_TLS_IE_LDX + -- : BFD_RELOC_SPARC_TLS_IE_ADD + -- : BFD_RELOC_SPARC_TLS_LE_HIX22 + -- : BFD_RELOC_SPARC_TLS_LE_LOX10 + -- : BFD_RELOC_SPARC_TLS_DTPMOD32 + -- : BFD_RELOC_SPARC_TLS_DTPMOD64 + -- : BFD_RELOC_SPARC_TLS_DTPOFF32 + -- : BFD_RELOC_SPARC_TLS_DTPOFF64 + -- : BFD_RELOC_SPARC_TLS_TPOFF32 + -- : BFD_RELOC_SPARC_TLS_TPOFF64 + SPARC TLS relocations + + -- : BFD_RELOC_ALPHA_GPDISP_HI16 + Alpha ECOFF and ELF relocations. Some of these treat the symbol or + "addend" in some special way. For GPDISP_HI16 ("gpdisp") + relocations, the symbol is ignored when writing; when reading, it + will be the absolute section symbol. The addend is the + displacement in bytes of the "lda" instruction from the "ldah" + instruction (which is at the address of this reloc). + + -- : BFD_RELOC_ALPHA_GPDISP_LO16 + For GPDISP_LO16 ("ignore") relocations, the symbol is handled as + with GPDISP_HI16 relocs. The addend is ignored when writing the + relocations out, and is filled in with the file's GP value on + reading, for convenience. + + -- : BFD_RELOC_ALPHA_GPDISP + The ELF GPDISP relocation is exactly the same as the GPDISP_HI16 + relocation except that there is no accompanying GPDISP_LO16 + relocation. + + -- : BFD_RELOC_ALPHA_LITERAL + -- : BFD_RELOC_ALPHA_ELF_LITERAL + -- : BFD_RELOC_ALPHA_LITUSE + The Alpha LITERAL/LITUSE relocs are produced by a symbol reference; + the assembler turns it into a LDQ instruction to load the address + of the symbol, and then fills in a register in the real + instruction. + + The LITERAL reloc, at the LDQ instruction, refers to the .lita + section symbol. The addend is ignored when writing, but is filled + in with the file's GP value on reading, for convenience, as with + the GPDISP_LO16 reloc. + + The ELF_LITERAL reloc is somewhere between 16_GOTOFF and + GPDISP_LO16. It should refer to the symbol to be referenced, as + with 16_GOTOFF, but it generates output not based on the position + within the .got section, but relative to the GP value chosen for + the file during the final link stage. + + The LITUSE reloc, on the instruction using the loaded address, + gives information to the linker that it might be able to use to + optimize away some literal section references. The symbol is + ignored (read as the absolute section symbol), and the "addend" + indicates the type of instruction using the register: 1 - "memory" + fmt insn 2 - byte-manipulation (byte offset reg) 3 - jsr (target + of branch) + + -- : BFD_RELOC_ALPHA_HINT + The HINT relocation indicates a value that should be filled into + the "hint" field of a jmp/jsr/ret instruction, for possible branch- + prediction logic which may be provided on some processors. + + -- : BFD_RELOC_ALPHA_LINKAGE + The LINKAGE relocation outputs a linkage pair in the object file, + which is filled by the linker. + + -- : BFD_RELOC_ALPHA_CODEADDR + The CODEADDR relocation outputs a STO_CA in the object file, which + is filled by the linker. + + -- : BFD_RELOC_ALPHA_GPREL_HI16 + -- : BFD_RELOC_ALPHA_GPREL_LO16 + The GPREL_HI/LO relocations together form a 32-bit offset from the + GP register. + + -- : BFD_RELOC_ALPHA_BRSGP + Like BFD_RELOC_23_PCREL_S2, except that the source and target must + share a common GP, and the target address is adjusted for + STO_ALPHA_STD_GPLOAD. + + -- : BFD_RELOC_ALPHA_TLSGD + -- : BFD_RELOC_ALPHA_TLSLDM + -- : BFD_RELOC_ALPHA_DTPMOD64 + -- : BFD_RELOC_ALPHA_GOTDTPREL16 + -- : BFD_RELOC_ALPHA_DTPREL64 + -- : BFD_RELOC_ALPHA_DTPREL_HI16 + -- : BFD_RELOC_ALPHA_DTPREL_LO16 + -- : BFD_RELOC_ALPHA_DTPREL16 + -- : BFD_RELOC_ALPHA_GOTTPREL16 + -- : BFD_RELOC_ALPHA_TPREL64 + -- : BFD_RELOC_ALPHA_TPREL_HI16 + -- : BFD_RELOC_ALPHA_TPREL_LO16 + -- : BFD_RELOC_ALPHA_TPREL16 + Alpha thread-local storage relocations. + + -- : BFD_RELOC_MIPS_JMP + Bits 27..2 of the relocation address shifted right 2 bits; simple + reloc otherwise. + + -- : BFD_RELOC_MIPS16_JMP + The MIPS16 jump instruction. + + -- : BFD_RELOC_MIPS16_GPREL + MIPS16 GP relative reloc. + + -- : BFD_RELOC_HI16 + High 16 bits of 32-bit value; simple reloc. + + -- : BFD_RELOC_HI16_S + High 16 bits of 32-bit value but the low 16 bits will be sign + extended and added to form the final result. If the low 16 bits + form a negative number, we need to add one to the high value to + compensate for the borrow when the low bits are added. + + -- : BFD_RELOC_LO16 + Low 16 bits. + + -- : BFD_RELOC_MIPS16_HI16 + MIPS16 high 16 bits of 32-bit value. + + -- : BFD_RELOC_MIPS16_HI16_S + MIPS16 high 16 bits of 32-bit value but the low 16 bits will be + sign extended and added to form the final result. If the low 16 + bits form a negative number, we need to add one to the high value + to compensate for the borrow when the low bits are added. + + -- : BFD_RELOC_MIPS16_LO16 + MIPS16 low 16 bits. + + -- : BFD_RELOC_MIPS_LITERAL + Relocation against a MIPS literal section. + + -- : BFD_RELOC_MIPS_GOT16 + -- : BFD_RELOC_MIPS_CALL16 + -- : BFD_RELOC_MIPS_GOT_HI16 + -- : BFD_RELOC_MIPS_GOT_LO16 + -- : BFD_RELOC_MIPS_CALL_HI16 + -- : BFD_RELOC_MIPS_CALL_LO16 + -- : BFD_RELOC_MIPS_SUB + -- : BFD_RELOC_MIPS_GOT_PAGE + -- : BFD_RELOC_MIPS_GOT_OFST + -- : BFD_RELOC_MIPS_GOT_DISP + -- : BFD_RELOC_MIPS_SHIFT5 + -- : BFD_RELOC_MIPS_SHIFT6 + -- : BFD_RELOC_MIPS_INSERT_A + -- : BFD_RELOC_MIPS_INSERT_B + -- : BFD_RELOC_MIPS_DELETE + -- : BFD_RELOC_MIPS_HIGHEST + -- : BFD_RELOC_MIPS_HIGHER + -- : BFD_RELOC_MIPS_SCN_DISP + -- : BFD_RELOC_MIPS_REL16 + -- : BFD_RELOC_MIPS_RELGOT + -- : BFD_RELOC_MIPS_JALR + -- : BFD_RELOC_MIPS_TLS_DTPMOD32 + -- : BFD_RELOC_MIPS_TLS_DTPREL32 + -- : BFD_RELOC_MIPS_TLS_DTPMOD64 + -- : BFD_RELOC_MIPS_TLS_DTPREL64 + -- : BFD_RELOC_MIPS_TLS_GD + -- : BFD_RELOC_MIPS_TLS_LDM + -- : BFD_RELOC_MIPS_TLS_DTPREL_HI16 + -- : BFD_RELOC_MIPS_TLS_DTPREL_LO16 + -- : BFD_RELOC_MIPS_TLS_GOTTPREL + -- : BFD_RELOC_MIPS_TLS_TPREL32 + -- : BFD_RELOC_MIPS_TLS_TPREL64 + -- : BFD_RELOC_MIPS_TLS_TPREL_HI16 + -- : BFD_RELOC_MIPS_TLS_TPREL_LO16 + MIPS ELF relocations. + + -- : BFD_RELOC_FRV_LABEL16 + -- : BFD_RELOC_FRV_LABEL24 + -- : BFD_RELOC_FRV_LO16 + -- : BFD_RELOC_FRV_HI16 + -- : BFD_RELOC_FRV_GPREL12 + -- : BFD_RELOC_FRV_GPRELU12 + -- : BFD_RELOC_FRV_GPREL32 + -- : BFD_RELOC_FRV_GPRELHI + -- : BFD_RELOC_FRV_GPRELLO + -- : BFD_RELOC_FRV_GOT12 + -- : BFD_RELOC_FRV_GOTHI + -- : BFD_RELOC_FRV_GOTLO + -- : BFD_RELOC_FRV_FUNCDESC + -- : BFD_RELOC_FRV_FUNCDESC_GOT12 + -- : BFD_RELOC_FRV_FUNCDESC_GOTHI + -- : BFD_RELOC_FRV_FUNCDESC_GOTLO + -- : BFD_RELOC_FRV_FUNCDESC_VALUE + -- : BFD_RELOC_FRV_FUNCDESC_GOTOFF12 + -- : BFD_RELOC_FRV_FUNCDESC_GOTOFFHI + -- : BFD_RELOC_FRV_FUNCDESC_GOTOFFLO + -- : BFD_RELOC_FRV_GOTOFF12 + -- : BFD_RELOC_FRV_GOTOFFHI + -- : BFD_RELOC_FRV_GOTOFFLO + -- : BFD_RELOC_FRV_GETTLSOFF + -- : BFD_RELOC_FRV_TLSDESC_VALUE + -- : BFD_RELOC_FRV_GOTTLSDESC12 + -- : BFD_RELOC_FRV_GOTTLSDESCHI + -- : BFD_RELOC_FRV_GOTTLSDESCLO + -- : BFD_RELOC_FRV_TLSMOFF12 + -- : BFD_RELOC_FRV_TLSMOFFHI + -- : BFD_RELOC_FRV_TLSMOFFLO + -- : BFD_RELOC_FRV_GOTTLSOFF12 + -- : BFD_RELOC_FRV_GOTTLSOFFHI + -- : BFD_RELOC_FRV_GOTTLSOFFLO + -- : BFD_RELOC_FRV_TLSOFF + -- : BFD_RELOC_FRV_TLSDESC_RELAX + -- : BFD_RELOC_FRV_GETTLSOFF_RELAX + -- : BFD_RELOC_FRV_TLSOFF_RELAX + -- : BFD_RELOC_FRV_TLSMOFF + Fujitsu Frv Relocations. + + -- : BFD_RELOC_MN10300_GOTOFF24 + This is a 24bit GOT-relative reloc for the mn10300. + + -- : BFD_RELOC_MN10300_GOT32 + This is a 32bit GOT-relative reloc for the mn10300, offset by two + bytes in the instruction. + + -- : BFD_RELOC_MN10300_GOT24 + This is a 24bit GOT-relative reloc for the mn10300, offset by two + bytes in the instruction. + + -- : BFD_RELOC_MN10300_GOT16 + This is a 16bit GOT-relative reloc for the mn10300, offset by two + bytes in the instruction. + + -- : BFD_RELOC_MN10300_COPY + Copy symbol at runtime. + + -- : BFD_RELOC_MN10300_GLOB_DAT + Create GOT entry. + + -- : BFD_RELOC_MN10300_JMP_SLOT + Create PLT entry. + + -- : BFD_RELOC_MN10300_RELATIVE + Adjust by program base. + + -- : BFD_RELOC_386_GOT32 + -- : BFD_RELOC_386_PLT32 + -- : BFD_RELOC_386_COPY + -- : BFD_RELOC_386_GLOB_DAT + -- : BFD_RELOC_386_JUMP_SLOT + -- : BFD_RELOC_386_RELATIVE + -- : BFD_RELOC_386_GOTOFF + -- : BFD_RELOC_386_GOTPC + -- : BFD_RELOC_386_TLS_TPOFF + -- : BFD_RELOC_386_TLS_IE + -- : BFD_RELOC_386_TLS_GOTIE + -- : BFD_RELOC_386_TLS_LE + -- : BFD_RELOC_386_TLS_GD + -- : BFD_RELOC_386_TLS_LDM + -- : BFD_RELOC_386_TLS_LDO_32 + -- : BFD_RELOC_386_TLS_IE_32 + -- : BFD_RELOC_386_TLS_LE_32 + -- : BFD_RELOC_386_TLS_DTPMOD32 + -- : BFD_RELOC_386_TLS_DTPOFF32 + -- : BFD_RELOC_386_TLS_TPOFF32 + i386/elf relocations + + -- : BFD_RELOC_X86_64_GOT32 + -- : BFD_RELOC_X86_64_PLT32 + -- : BFD_RELOC_X86_64_COPY + -- : BFD_RELOC_X86_64_GLOB_DAT + -- : BFD_RELOC_X86_64_JUMP_SLOT + -- : BFD_RELOC_X86_64_RELATIVE + -- : BFD_RELOC_X86_64_GOTPCREL + -- : BFD_RELOC_X86_64_32S + -- : BFD_RELOC_X86_64_DTPMOD64 + -- : BFD_RELOC_X86_64_DTPOFF64 + -- : BFD_RELOC_X86_64_TPOFF64 + -- : BFD_RELOC_X86_64_TLSGD + -- : BFD_RELOC_X86_64_TLSLD + -- : BFD_RELOC_X86_64_DTPOFF32 + -- : BFD_RELOC_X86_64_GOTTPOFF + -- : BFD_RELOC_X86_64_TPOFF32 + x86-64/elf relocations + + -- : BFD_RELOC_NS32K_IMM_8 + -- : BFD_RELOC_NS32K_IMM_16 + -- : BFD_RELOC_NS32K_IMM_32 + -- : BFD_RELOC_NS32K_IMM_8_PCREL + -- : BFD_RELOC_NS32K_IMM_16_PCREL + -- : BFD_RELOC_NS32K_IMM_32_PCREL + -- : BFD_RELOC_NS32K_DISP_8 + -- : BFD_RELOC_NS32K_DISP_16 + -- : BFD_RELOC_NS32K_DISP_32 + -- : BFD_RELOC_NS32K_DISP_8_PCREL + -- : BFD_RELOC_NS32K_DISP_16_PCREL + -- : BFD_RELOC_NS32K_DISP_32_PCREL + ns32k relocations + + -- : BFD_RELOC_PDP11_DISP_8_PCREL + -- : BFD_RELOC_PDP11_DISP_6_PCREL + PDP11 relocations + + -- : BFD_RELOC_PJ_CODE_HI16 + -- : BFD_RELOC_PJ_CODE_LO16 + -- : BFD_RELOC_PJ_CODE_DIR16 + -- : BFD_RELOC_PJ_CODE_DIR32 + -- : BFD_RELOC_PJ_CODE_REL16 + -- : BFD_RELOC_PJ_CODE_REL32 + Picojava relocs. Not all of these appear in object files. + + -- : BFD_RELOC_PPC_B26 + -- : BFD_RELOC_PPC_BA26 + -- : BFD_RELOC_PPC_TOC16 + -- : BFD_RELOC_PPC_B16 + -- : BFD_RELOC_PPC_B16_BRTAKEN + -- : BFD_RELOC_PPC_B16_BRNTAKEN + -- : BFD_RELOC_PPC_BA16 + -- : BFD_RELOC_PPC_BA16_BRTAKEN + -- : BFD_RELOC_PPC_BA16_BRNTAKEN + -- : BFD_RELOC_PPC_COPY + -- : BFD_RELOC_PPC_GLOB_DAT + -- : BFD_RELOC_PPC_JMP_SLOT + -- : BFD_RELOC_PPC_RELATIVE + -- : BFD_RELOC_PPC_LOCAL24PC + -- : BFD_RELOC_PPC_EMB_NADDR32 + -- : BFD_RELOC_PPC_EMB_NADDR16 + -- : BFD_RELOC_PPC_EMB_NADDR16_LO + -- : BFD_RELOC_PPC_EMB_NADDR16_HI + -- : BFD_RELOC_PPC_EMB_NADDR16_HA + -- : BFD_RELOC_PPC_EMB_SDAI16 + -- : BFD_RELOC_PPC_EMB_SDA2I16 + -- : BFD_RELOC_PPC_EMB_SDA2REL + -- : BFD_RELOC_PPC_EMB_SDA21 + -- : BFD_RELOC_PPC_EMB_MRKREF + -- : BFD_RELOC_PPC_EMB_RELSEC16 + -- : BFD_RELOC_PPC_EMB_RELST_LO + -- : BFD_RELOC_PPC_EMB_RELST_HI + -- : BFD_RELOC_PPC_EMB_RELST_HA + -- : BFD_RELOC_PPC_EMB_BIT_FLD + -- : BFD_RELOC_PPC_EMB_RELSDA + -- : BFD_RELOC_PPC64_HIGHER + -- : BFD_RELOC_PPC64_HIGHER_S + -- : BFD_RELOC_PPC64_HIGHEST + -- : BFD_RELOC_PPC64_HIGHEST_S + -- : BFD_RELOC_PPC64_TOC16_LO + -- : BFD_RELOC_PPC64_TOC16_HI + -- : BFD_RELOC_PPC64_TOC16_HA + -- : BFD_RELOC_PPC64_TOC + -- : BFD_RELOC_PPC64_PLTGOT16 + -- : BFD_RELOC_PPC64_PLTGOT16_LO + -- : BFD_RELOC_PPC64_PLTGOT16_HI + -- : BFD_RELOC_PPC64_PLTGOT16_HA + -- : BFD_RELOC_PPC64_ADDR16_DS + -- : BFD_RELOC_PPC64_ADDR16_LO_DS + -- : BFD_RELOC_PPC64_GOT16_DS + -- : BFD_RELOC_PPC64_GOT16_LO_DS + -- : BFD_RELOC_PPC64_PLT16_LO_DS + -- : BFD_RELOC_PPC64_SECTOFF_DS + -- : BFD_RELOC_PPC64_SECTOFF_LO_DS + -- : BFD_RELOC_PPC64_TOC16_DS + -- : BFD_RELOC_PPC64_TOC16_LO_DS + -- : BFD_RELOC_PPC64_PLTGOT16_DS + -- : BFD_RELOC_PPC64_PLTGOT16_LO_DS + Power(rs6000) and PowerPC relocations. + + -- : BFD_RELOC_PPC_TLS + -- : BFD_RELOC_PPC_DTPMOD + -- : BFD_RELOC_PPC_TPREL16 + -- : BFD_RELOC_PPC_TPREL16_LO + -- : BFD_RELOC_PPC_TPREL16_HI + -- : BFD_RELOC_PPC_TPREL16_HA + -- : BFD_RELOC_PPC_TPREL + -- : BFD_RELOC_PPC_DTPREL16 + -- : BFD_RELOC_PPC_DTPREL16_LO + -- : BFD_RELOC_PPC_DTPREL16_HI + -- : BFD_RELOC_PPC_DTPREL16_HA + -- : BFD_RELOC_PPC_DTPREL + -- : BFD_RELOC_PPC_GOT_TLSGD16 + -- : BFD_RELOC_PPC_GOT_TLSGD16_LO + -- : BFD_RELOC_PPC_GOT_TLSGD16_HI + -- : BFD_RELOC_PPC_GOT_TLSGD16_HA + -- : BFD_RELOC_PPC_GOT_TLSLD16 + -- : BFD_RELOC_PPC_GOT_TLSLD16_LO + -- : BFD_RELOC_PPC_GOT_TLSLD16_HI + -- : BFD_RELOC_PPC_GOT_TLSLD16_HA + -- : BFD_RELOC_PPC_GOT_TPREL16 + -- : BFD_RELOC_PPC_GOT_TPREL16_LO + -- : BFD_RELOC_PPC_GOT_TPREL16_HI + -- : BFD_RELOC_PPC_GOT_TPREL16_HA + -- : BFD_RELOC_PPC_GOT_DTPREL16 + -- : BFD_RELOC_PPC_GOT_DTPREL16_LO + -- : BFD_RELOC_PPC_GOT_DTPREL16_HI + -- : BFD_RELOC_PPC_GOT_DTPREL16_HA + -- : BFD_RELOC_PPC64_TPREL16_DS + -- : BFD_RELOC_PPC64_TPREL16_LO_DS + -- : BFD_RELOC_PPC64_TPREL16_HIGHER + -- : BFD_RELOC_PPC64_TPREL16_HIGHERA + -- : BFD_RELOC_PPC64_TPREL16_HIGHEST + -- : BFD_RELOC_PPC64_TPREL16_HIGHESTA + -- : BFD_RELOC_PPC64_DTPREL16_DS + -- : BFD_RELOC_PPC64_DTPREL16_LO_DS + -- : BFD_RELOC_PPC64_DTPREL16_HIGHER + -- : BFD_RELOC_PPC64_DTPREL16_HIGHERA + -- : BFD_RELOC_PPC64_DTPREL16_HIGHEST + -- : BFD_RELOC_PPC64_DTPREL16_HIGHESTA + PowerPC and PowerPC64 thread-local storage relocations. + + -- : BFD_RELOC_I370_D12 + IBM 370/390 relocations + + -- : BFD_RELOC_CTOR + The type of reloc used to build a constructor table - at the moment + probably a 32 bit wide absolute relocation, but the target can + choose. It generally does map to one of the other relocation + types. + + -- : BFD_RELOC_ARM_PCREL_BRANCH + ARM 26 bit pc-relative branch. The lowest two bits must be zero + and are not stored in the instruction. + + -- : BFD_RELOC_ARM_PCREL_BLX + ARM 26 bit pc-relative branch. The lowest bit must be zero and is + not stored in the instruction. The 2nd lowest bit comes from a 1 + bit field in the instruction. + + -- : BFD_RELOC_THUMB_PCREL_BLX + Thumb 22 bit pc-relative branch. The lowest bit must be zero and + is not stored in the instruction. The 2nd lowest bit comes from a + 1 bit field in the instruction. + + -- : BFD_RELOC_ARM_IMMEDIATE + -- : BFD_RELOC_ARM_ADRL_IMMEDIATE + -- : BFD_RELOC_ARM_OFFSET_IMM + -- : BFD_RELOC_ARM_SHIFT_IMM + -- : BFD_RELOC_ARM_SMI + -- : BFD_RELOC_ARM_SWI + -- : BFD_RELOC_ARM_MULTI + -- : BFD_RELOC_ARM_CP_OFF_IMM + -- : BFD_RELOC_ARM_CP_OFF_IMM_S2 + -- : BFD_RELOC_ARM_ADR_IMM + -- : BFD_RELOC_ARM_LDR_IMM + -- : BFD_RELOC_ARM_LITERAL + -- : BFD_RELOC_ARM_IN_POOL + -- : BFD_RELOC_ARM_OFFSET_IMM8 + -- : BFD_RELOC_ARM_HWLITERAL + -- : BFD_RELOC_ARM_THUMB_ADD + -- : BFD_RELOC_ARM_THUMB_IMM + -- : BFD_RELOC_ARM_THUMB_SHIFT + -- : BFD_RELOC_ARM_THUMB_OFFSET + -- : BFD_RELOC_ARM_GOT12 + -- : BFD_RELOC_ARM_GOT32 + -- : BFD_RELOC_ARM_JUMP_SLOT + -- : BFD_RELOC_ARM_COPY + -- : BFD_RELOC_ARM_GLOB_DAT + -- : BFD_RELOC_ARM_PLT32 + -- : BFD_RELOC_ARM_RELATIVE + -- : BFD_RELOC_ARM_GOTOFF + -- : BFD_RELOC_ARM_GOTPC + These relocs are only used within the ARM assembler. They are not + (at present) written to any object files. + + -- : BFD_RELOC_ARM_TARGET1 + Pc-relative or absolute relocation depending on target. Used for + entries in .init_array sections. + + -- : BFD_RELOC_ARM_ROSEGREL32 + Read-only segment base relative address. + + -- : BFD_RELOC_ARM_SBREL32 + Data segment base relative address. + + -- : BFD_RELOC_ARM_TARGET2 + This reloc is used for References to RTTI dta from exception + handling tables. The actual definition depends on the target. It + may be a pc-relative or some form of GOT-indirect relocation. + + -- : BFD_RELOC_ARM_PREL31 + 31-bit PC relative address. + + -- : BFD_RELOC_SH_PCDISP8BY2 + -- : BFD_RELOC_SH_PCDISP12BY2 + -- : BFD_RELOC_SH_IMM3 + -- : BFD_RELOC_SH_IMM3U + -- : BFD_RELOC_SH_DISP12 + -- : BFD_RELOC_SH_DISP12BY2 + -- : BFD_RELOC_SH_DISP12BY4 + -- : BFD_RELOC_SH_DISP12BY8 + -- : BFD_RELOC_SH_DISP20 + -- : BFD_RELOC_SH_DISP20BY8 + -- : BFD_RELOC_SH_IMM4 + -- : BFD_RELOC_SH_IMM4BY2 + -- : BFD_RELOC_SH_IMM4BY4 + -- : BFD_RELOC_SH_IMM8 + -- : BFD_RELOC_SH_IMM8BY2 + -- : BFD_RELOC_SH_IMM8BY4 + -- : BFD_RELOC_SH_PCRELIMM8BY2 + -- : BFD_RELOC_SH_PCRELIMM8BY4 + -- : BFD_RELOC_SH_SWITCH16 + -- : BFD_RELOC_SH_SWITCH32 + -- : BFD_RELOC_SH_USES + -- : BFD_RELOC_SH_COUNT + -- : BFD_RELOC_SH_ALIGN + -- : BFD_RELOC_SH_CODE + -- : BFD_RELOC_SH_DATA + -- : BFD_RELOC_SH_LABEL + -- : BFD_RELOC_SH_LOOP_START + -- : BFD_RELOC_SH_LOOP_END + -- : BFD_RELOC_SH_COPY + -- : BFD_RELOC_SH_GLOB_DAT + -- : BFD_RELOC_SH_JMP_SLOT + -- : BFD_RELOC_SH_RELATIVE + -- : BFD_RELOC_SH_GOTPC + -- : BFD_RELOC_SH_GOT_LOW16 + -- : BFD_RELOC_SH_GOT_MEDLOW16 + -- : BFD_RELOC_SH_GOT_MEDHI16 + -- : BFD_RELOC_SH_GOT_HI16 + -- : BFD_RELOC_SH_GOTPLT_LOW16 + -- : BFD_RELOC_SH_GOTPLT_MEDLOW16 + -- : BFD_RELOC_SH_GOTPLT_MEDHI16 + -- : BFD_RELOC_SH_GOTPLT_HI16 + -- : BFD_RELOC_SH_PLT_LOW16 + -- : BFD_RELOC_SH_PLT_MEDLOW16 + -- : BFD_RELOC_SH_PLT_MEDHI16 + -- : BFD_RELOC_SH_PLT_HI16 + -- : BFD_RELOC_SH_GOTOFF_LOW16 + -- : BFD_RELOC_SH_GOTOFF_MEDLOW16 + -- : BFD_RELOC_SH_GOTOFF_MEDHI16 + -- : BFD_RELOC_SH_GOTOFF_HI16 + -- : BFD_RELOC_SH_GOTPC_LOW16 + -- : BFD_RELOC_SH_GOTPC_MEDLOW16 + -- : BFD_RELOC_SH_GOTPC_MEDHI16 + -- : BFD_RELOC_SH_GOTPC_HI16 + -- : BFD_RELOC_SH_COPY64 + -- : BFD_RELOC_SH_GLOB_DAT64 + -- : BFD_RELOC_SH_JMP_SLOT64 + -- : BFD_RELOC_SH_RELATIVE64 + -- : BFD_RELOC_SH_GOT10BY4 + -- : BFD_RELOC_SH_GOT10BY8 + -- : BFD_RELOC_SH_GOTPLT10BY4 + -- : BFD_RELOC_SH_GOTPLT10BY8 + -- : BFD_RELOC_SH_GOTPLT32 + -- : BFD_RELOC_SH_SHMEDIA_CODE + -- : BFD_RELOC_SH_IMMU5 + -- : BFD_RELOC_SH_IMMS6 + -- : BFD_RELOC_SH_IMMS6BY32 + -- : BFD_RELOC_SH_IMMU6 + -- : BFD_RELOC_SH_IMMS10 + -- : BFD_RELOC_SH_IMMS10BY2 + -- : BFD_RELOC_SH_IMMS10BY4 + -- : BFD_RELOC_SH_IMMS10BY8 + -- : BFD_RELOC_SH_IMMS16 + -- : BFD_RELOC_SH_IMMU16 + -- : BFD_RELOC_SH_IMM_LOW16 + -- : BFD_RELOC_SH_IMM_LOW16_PCREL + -- : BFD_RELOC_SH_IMM_MEDLOW16 + -- : BFD_RELOC_SH_IMM_MEDLOW16_PCREL + -- : BFD_RELOC_SH_IMM_MEDHI16 + -- : BFD_RELOC_SH_IMM_MEDHI16_PCREL + -- : BFD_RELOC_SH_IMM_HI16 + -- : BFD_RELOC_SH_IMM_HI16_PCREL + -- : BFD_RELOC_SH_PT_16 + -- : BFD_RELOC_SH_TLS_GD_32 + -- : BFD_RELOC_SH_TLS_LD_32 + -- : BFD_RELOC_SH_TLS_LDO_32 + -- : BFD_RELOC_SH_TLS_IE_32 + -- : BFD_RELOC_SH_TLS_LE_32 + -- : BFD_RELOC_SH_TLS_DTPMOD32 + -- : BFD_RELOC_SH_TLS_DTPOFF32 + -- : BFD_RELOC_SH_TLS_TPOFF32 + Renesas / SuperH SH relocs. Not all of these appear in object + files. + + -- : BFD_RELOC_THUMB_PCREL_BRANCH9 + -- : BFD_RELOC_THUMB_PCREL_BRANCH12 + -- : BFD_RELOC_THUMB_PCREL_BRANCH23 + Thumb 23-, 12- and 9-bit pc-relative branches. The lowest bit must + be zero and is not stored in the instruction. + + -- : BFD_RELOC_ARC_B22_PCREL + ARC Cores relocs. ARC 22 bit pc-relative branch. The lowest two + bits must be zero and are not stored in the instruction. The high + 20 bits are installed in bits 26 through 7 of the instruction. + + -- : BFD_RELOC_ARC_B26 + ARC 26 bit absolute branch. The lowest two bits must be zero and + are not stored in the instruction. The high 24 bits are installed + in bits 23 through 0. + + -- : BFD_RELOC_D10V_10_PCREL_R + Mitsubishi D10V relocs. This is a 10-bit reloc with the right 2 + bits assumed to be 0. + + -- : BFD_RELOC_D10V_10_PCREL_L + Mitsubishi D10V relocs. This is a 10-bit reloc with the right 2 + bits assumed to be 0. This is the same as the previous reloc + except it is in the left container, i.e., shifted left 15 bits. + + -- : BFD_RELOC_D10V_18 + This is an 18-bit reloc with the right 2 bits assumed to be 0. + + -- : BFD_RELOC_D10V_18_PCREL + This is an 18-bit reloc with the right 2 bits assumed to be 0. + + -- : BFD_RELOC_D30V_6 + Mitsubishi D30V relocs. This is a 6-bit absolute reloc. + + -- : BFD_RELOC_D30V_9_PCREL + This is a 6-bit pc-relative reloc with the right 3 bits assumed to + be 0. + + -- : BFD_RELOC_D30V_9_PCREL_R + This is a 6-bit pc-relative reloc with the right 3 bits assumed to + be 0. Same as the previous reloc but on the right side of the + container. + + -- : BFD_RELOC_D30V_15 + This is a 12-bit absolute reloc with the right 3 bitsassumed to be + 0. + + -- : BFD_RELOC_D30V_15_PCREL + This is a 12-bit pc-relative reloc with the right 3 bits assumed + to be 0. + + -- : BFD_RELOC_D30V_15_PCREL_R + This is a 12-bit pc-relative reloc with the right 3 bits assumed + to be 0. Same as the previous reloc but on the right side of the + container. + + -- : BFD_RELOC_D30V_21 + This is an 18-bit absolute reloc with the right 3 bits assumed to + be 0. + + -- : BFD_RELOC_D30V_21_PCREL + This is an 18-bit pc-relative reloc with the right 3 bits assumed + to be 0. + + -- : BFD_RELOC_D30V_21_PCREL_R + This is an 18-bit pc-relative reloc with the right 3 bits assumed + to be 0. Same as the previous reloc but on the right side of the + container. + + -- : BFD_RELOC_D30V_32 + This is a 32-bit absolute reloc. + + -- : BFD_RELOC_D30V_32_PCREL + This is a 32-bit pc-relative reloc. + + -- : BFD_RELOC_DLX_HI16_S + DLX relocs + + -- : BFD_RELOC_DLX_LO16 + DLX relocs + + -- : BFD_RELOC_DLX_JMP26 + DLX relocs + + -- : BFD_RELOC_M32R_24 + Renesas M32R (formerly Mitsubishi M32R) relocs. This is a 24 bit + absolute address. + + -- : BFD_RELOC_M32R_10_PCREL + This is a 10-bit pc-relative reloc with the right 2 bits assumed + to be 0. + + -- : BFD_RELOC_M32R_18_PCREL + This is an 18-bit reloc with the right 2 bits assumed to be 0. + + -- : BFD_RELOC_M32R_26_PCREL + This is a 26-bit reloc with the right 2 bits assumed to be 0. + + -- : BFD_RELOC_M32R_HI16_ULO + This is a 16-bit reloc containing the high 16 bits of an address + used when the lower 16 bits are treated as unsigned. + + -- : BFD_RELOC_M32R_HI16_SLO + This is a 16-bit reloc containing the high 16 bits of an address + used when the lower 16 bits are treated as signed. + + -- : BFD_RELOC_M32R_LO16 + This is a 16-bit reloc containing the lower 16 bits of an address. + + -- : BFD_RELOC_M32R_SDA16 + This is a 16-bit reloc containing the small data area offset for + use in add3, load, and store instructions. + + -- : BFD_RELOC_M32R_GOT24 + -- : BFD_RELOC_M32R_26_PLTREL + -- : BFD_RELOC_M32R_COPY + -- : BFD_RELOC_M32R_GLOB_DAT + -- : BFD_RELOC_M32R_JMP_SLOT + -- : BFD_RELOC_M32R_RELATIVE + -- : BFD_RELOC_M32R_GOTOFF + -- : BFD_RELOC_M32R_GOTOFF_HI_ULO + -- : BFD_RELOC_M32R_GOTOFF_HI_SLO + -- : BFD_RELOC_M32R_GOTOFF_LO + -- : BFD_RELOC_M32R_GOTPC24 + -- : BFD_RELOC_M32R_GOT16_HI_ULO + -- : BFD_RELOC_M32R_GOT16_HI_SLO + -- : BFD_RELOC_M32R_GOT16_LO + -- : BFD_RELOC_M32R_GOTPC_HI_ULO + -- : BFD_RELOC_M32R_GOTPC_HI_SLO + -- : BFD_RELOC_M32R_GOTPC_LO + For PIC. + + -- : BFD_RELOC_V850_9_PCREL + This is a 9-bit reloc + + -- : BFD_RELOC_V850_22_PCREL + This is a 22-bit reloc + + -- : BFD_RELOC_V850_SDA_16_16_OFFSET + This is a 16 bit offset from the short data area pointer. + + -- : BFD_RELOC_V850_SDA_15_16_OFFSET + This is a 16 bit offset (of which only 15 bits are used) from the + short data area pointer. + + -- : BFD_RELOC_V850_ZDA_16_16_OFFSET + This is a 16 bit offset from the zero data area pointer. + + -- : BFD_RELOC_V850_ZDA_15_16_OFFSET + This is a 16 bit offset (of which only 15 bits are used) from the + zero data area pointer. + + -- : BFD_RELOC_V850_TDA_6_8_OFFSET + This is an 8 bit offset (of which only 6 bits are used) from the + tiny data area pointer. + + -- : BFD_RELOC_V850_TDA_7_8_OFFSET + This is an 8bit offset (of which only 7 bits are used) from the + tiny data area pointer. + + -- : BFD_RELOC_V850_TDA_7_7_OFFSET + This is a 7 bit offset from the tiny data area pointer. + + -- : BFD_RELOC_V850_TDA_16_16_OFFSET + This is a 16 bit offset from the tiny data area pointer. + + -- : BFD_RELOC_V850_TDA_4_5_OFFSET + This is a 5 bit offset (of which only 4 bits are used) from the + tiny data area pointer. + + -- : BFD_RELOC_V850_TDA_4_4_OFFSET + This is a 4 bit offset from the tiny data area pointer. + + -- : BFD_RELOC_V850_SDA_16_16_SPLIT_OFFSET + This is a 16 bit offset from the short data area pointer, with the + bits placed non-contiguously in the instruction. + + -- : BFD_RELOC_V850_ZDA_16_16_SPLIT_OFFSET + This is a 16 bit offset from the zero data area pointer, with the + bits placed non-contiguously in the instruction. + + -- : BFD_RELOC_V850_CALLT_6_7_OFFSET + This is a 6 bit offset from the call table base pointer. + + -- : BFD_RELOC_V850_CALLT_16_16_OFFSET + This is a 16 bit offset from the call table base pointer. + + -- : BFD_RELOC_V850_LONGCALL + Used for relaxing indirect function calls. + + -- : BFD_RELOC_V850_LONGJUMP + Used for relaxing indirect jumps. + + -- : BFD_RELOC_V850_ALIGN + Used to maintain alignment whilst relaxing. + + -- : BFD_RELOC_V850_LO16_SPLIT_OFFSET + This is a variation of BFD_RELOC_LO16 that can be used in v850e + ld.bu instructions. + + -- : BFD_RELOC_MN10300_32_PCREL + This is a 32bit pcrel reloc for the mn10300, offset by two bytes + in the instruction. + + -- : BFD_RELOC_MN10300_16_PCREL + This is a 16bit pcrel reloc for the mn10300, offset by two bytes + in the instruction. + + -- : BFD_RELOC_TIC30_LDP + This is a 8bit DP reloc for the tms320c30, where the most + significant 8 bits of a 24 bit word are placed into the least + significant 8 bits of the opcode. + + -- : BFD_RELOC_TIC54X_PARTLS7 + This is a 7bit reloc for the tms320c54x, where the least + significant 7 bits of a 16 bit word are placed into the least + significant 7 bits of the opcode. + + -- : BFD_RELOC_TIC54X_PARTMS9 + This is a 9bit DP reloc for the tms320c54x, where the most + significant 9 bits of a 16 bit word are placed into the least + significant 9 bits of the opcode. + + -- : BFD_RELOC_TIC54X_23 + This is an extended address 23-bit reloc for the tms320c54x. + + -- : BFD_RELOC_TIC54X_16_OF_23 + This is a 16-bit reloc for the tms320c54x, where the least + significant 16 bits of a 23-bit extended address are placed into + the opcode. + + -- : BFD_RELOC_TIC54X_MS7_OF_23 + This is a reloc for the tms320c54x, where the most significant 7 + bits of a 23-bit extended address are placed into the opcode. + + -- : BFD_RELOC_FR30_48 + This is a 48 bit reloc for the FR30 that stores 32 bits. + + -- : BFD_RELOC_FR30_20 + This is a 32 bit reloc for the FR30 that stores 20 bits split up + into two sections. + + -- : BFD_RELOC_FR30_6_IN_4 + This is a 16 bit reloc for the FR30 that stores a 6 bit word + offset in 4 bits. + + -- : BFD_RELOC_FR30_8_IN_8 + This is a 16 bit reloc for the FR30 that stores an 8 bit byte + offset into 8 bits. + + -- : BFD_RELOC_FR30_9_IN_8 + This is a 16 bit reloc for the FR30 that stores a 9 bit short + offset into 8 bits. + + -- : BFD_RELOC_FR30_10_IN_8 + This is a 16 bit reloc for the FR30 that stores a 10 bit word + offset into 8 bits. + + -- : BFD_RELOC_FR30_9_PCREL + This is a 16 bit reloc for the FR30 that stores a 9 bit pc relative + short offset into 8 bits. + + -- : BFD_RELOC_FR30_12_PCREL + This is a 16 bit reloc for the FR30 that stores a 12 bit pc + relative short offset into 11 bits. + + -- : BFD_RELOC_MCORE_PCREL_IMM8BY4 + -- : BFD_RELOC_MCORE_PCREL_IMM11BY2 + -- : BFD_RELOC_MCORE_PCREL_IMM4BY2 + -- : BFD_RELOC_MCORE_PCREL_32 + -- : BFD_RELOC_MCORE_PCREL_JSR_IMM11BY2 + -- : BFD_RELOC_MCORE_RVA + Motorola Mcore relocations. + + -- : BFD_RELOC_MMIX_GETA + -- : BFD_RELOC_MMIX_GETA_1 + -- : BFD_RELOC_MMIX_GETA_2 + -- : BFD_RELOC_MMIX_GETA_3 + These are relocations for the GETA instruction. + + -- : BFD_RELOC_MMIX_CBRANCH + -- : BFD_RELOC_MMIX_CBRANCH_J + -- : BFD_RELOC_MMIX_CBRANCH_1 + -- : BFD_RELOC_MMIX_CBRANCH_2 + -- : BFD_RELOC_MMIX_CBRANCH_3 + These are relocations for a conditional branch instruction. + + -- : BFD_RELOC_MMIX_PUSHJ + -- : BFD_RELOC_MMIX_PUSHJ_1 + -- : BFD_RELOC_MMIX_PUSHJ_2 + -- : BFD_RELOC_MMIX_PUSHJ_3 + -- : BFD_RELOC_MMIX_PUSHJ_STUBBABLE + These are relocations for the PUSHJ instruction. + + -- : BFD_RELOC_MMIX_JMP + -- : BFD_RELOC_MMIX_JMP_1 + -- : BFD_RELOC_MMIX_JMP_2 + -- : BFD_RELOC_MMIX_JMP_3 + These are relocations for the JMP instruction. + + -- : BFD_RELOC_MMIX_ADDR19 + This is a relocation for a relative address as in a GETA + instruction or a branch. + + -- : BFD_RELOC_MMIX_ADDR27 + This is a relocation for a relative address as in a JMP + instruction. + + -- : BFD_RELOC_MMIX_REG_OR_BYTE + This is a relocation for an instruction field that may be a general + register or a value 0..255. + + -- : BFD_RELOC_MMIX_REG + This is a relocation for an instruction field that may be a general + register. + + -- : BFD_RELOC_MMIX_BASE_PLUS_OFFSET + This is a relocation for two instruction fields holding a register + and an offset, the equivalent of the relocation. + + -- : BFD_RELOC_MMIX_LOCAL + This relocation is an assertion that the expression is not + allocated as a global register. It does not modify contents. + + -- : BFD_RELOC_AVR_7_PCREL + This is a 16 bit reloc for the AVR that stores 8 bit pc relative + short offset into 7 bits. + + -- : BFD_RELOC_AVR_13_PCREL + This is a 16 bit reloc for the AVR that stores 13 bit pc relative + short offset into 12 bits. + + -- : BFD_RELOC_AVR_16_PM + This is a 16 bit reloc for the AVR that stores 17 bit value + (usually program memory address) into 16 bits. + + -- : BFD_RELOC_AVR_LO8_LDI + This is a 16 bit reloc for the AVR that stores 8 bit value (usually + data memory address) into 8 bit immediate value of LDI insn. + + -- : BFD_RELOC_AVR_HI8_LDI + This is a 16 bit reloc for the AVR that stores 8 bit value (high 8 + bit of data memory address) into 8 bit immediate value of LDI insn. + + -- : BFD_RELOC_AVR_HH8_LDI + This is a 16 bit reloc for the AVR that stores 8 bit value (most + high 8 bit of program memory address) into 8 bit immediate value + of LDI insn. + + -- : BFD_RELOC_AVR_LO8_LDI_NEG + This is a 16 bit reloc for the AVR that stores negated 8 bit value + (usually data memory address) into 8 bit immediate value of SUBI + insn. + + -- : BFD_RELOC_AVR_HI8_LDI_NEG + This is a 16 bit reloc for the AVR that stores negated 8 bit value + (high 8 bit of data memory address) into 8 bit immediate value of + SUBI insn. + + -- : BFD_RELOC_AVR_HH8_LDI_NEG + This is a 16 bit reloc for the AVR that stores negated 8 bit value + (most high 8 bit of program memory address) into 8 bit immediate + value of LDI or SUBI insn. + + -- : BFD_RELOC_AVR_LO8_LDI_PM + This is a 16 bit reloc for the AVR that stores 8 bit value (usually + command address) into 8 bit immediate value of LDI insn. + + -- : BFD_RELOC_AVR_HI8_LDI_PM + This is a 16 bit reloc for the AVR that stores 8 bit value (high 8 + bit of command address) into 8 bit immediate value of LDI insn. + + -- : BFD_RELOC_AVR_HH8_LDI_PM + This is a 16 bit reloc for the AVR that stores 8 bit value (most + high 8 bit of command address) into 8 bit immediate value of LDI + insn. + + -- : BFD_RELOC_AVR_LO8_LDI_PM_NEG + This is a 16 bit reloc for the AVR that stores negated 8 bit value + (usually command address) into 8 bit immediate value of SUBI insn. + + -- : BFD_RELOC_AVR_HI8_LDI_PM_NEG + This is a 16 bit reloc for the AVR that stores negated 8 bit value + (high 8 bit of 16 bit command address) into 8 bit immediate value + of SUBI insn. + + -- : BFD_RELOC_AVR_HH8_LDI_PM_NEG + This is a 16 bit reloc for the AVR that stores negated 8 bit value + (high 6 bit of 22 bit command address) into 8 bit immediate value + of SUBI insn. + + -- : BFD_RELOC_AVR_CALL + This is a 32 bit reloc for the AVR that stores 23 bit value into + 22 bits. + + -- : BFD_RELOC_AVR_LDI + This is a 16 bit reloc for the AVR that stores all needed bits for + absolute addressing with ldi with overflow check to linktime + + -- : BFD_RELOC_AVR_6 + This is a 6 bit reloc for the AVR that stores offset for ldd/std + instructions + + -- : BFD_RELOC_AVR_6_ADIW + This is a 6 bit reloc for the AVR that stores offset for adiw/sbiw + instructions + + -- : BFD_RELOC_390_12 + Direct 12 bit. + + -- : BFD_RELOC_390_GOT12 + 12 bit GOT offset. + + -- : BFD_RELOC_390_PLT32 + 32 bit PC relative PLT address. + + -- : BFD_RELOC_390_COPY + Copy symbol at runtime. + + -- : BFD_RELOC_390_GLOB_DAT + Create GOT entry. + + -- : BFD_RELOC_390_JMP_SLOT + Create PLT entry. + + -- : BFD_RELOC_390_RELATIVE + Adjust by program base. + + -- : BFD_RELOC_390_GOTPC + 32 bit PC relative offset to GOT. + + -- : BFD_RELOC_390_GOT16 + 16 bit GOT offset. + + -- : BFD_RELOC_390_PC16DBL + PC relative 16 bit shifted by 1. + + -- : BFD_RELOC_390_PLT16DBL + 16 bit PC rel. PLT shifted by 1. + + -- : BFD_RELOC_390_PC32DBL + PC relative 32 bit shifted by 1. + + -- : BFD_RELOC_390_PLT32DBL + 32 bit PC rel. PLT shifted by 1. + + -- : BFD_RELOC_390_GOTPCDBL + 32 bit PC rel. GOT shifted by 1. + + -- : BFD_RELOC_390_GOT64 + 64 bit GOT offset. + + -- : BFD_RELOC_390_PLT64 + 64 bit PC relative PLT address. + + -- : BFD_RELOC_390_GOTENT + 32 bit rel. offset to GOT entry. + + -- : BFD_RELOC_390_GOTOFF64 + 64 bit offset to GOT. + + -- : BFD_RELOC_390_GOTPLT12 + 12-bit offset to symbol-entry within GOT, with PLT handling. + + -- : BFD_RELOC_390_GOTPLT16 + 16-bit offset to symbol-entry within GOT, with PLT handling. + + -- : BFD_RELOC_390_GOTPLT32 + 32-bit offset to symbol-entry within GOT, with PLT handling. + + -- : BFD_RELOC_390_GOTPLT64 + 64-bit offset to symbol-entry within GOT, with PLT handling. + + -- : BFD_RELOC_390_GOTPLTENT + 32-bit rel. offset to symbol-entry within GOT, with PLT handling. + + -- : BFD_RELOC_390_PLTOFF16 + 16-bit rel. offset from the GOT to a PLT entry. + + -- : BFD_RELOC_390_PLTOFF32 + 32-bit rel. offset from the GOT to a PLT entry. + + -- : BFD_RELOC_390_PLTOFF64 + 64-bit rel. offset from the GOT to a PLT entry. + + -- : BFD_RELOC_390_TLS_LOAD + -- : BFD_RELOC_390_TLS_GDCALL + -- : BFD_RELOC_390_TLS_LDCALL + -- : BFD_RELOC_390_TLS_GD32 + -- : BFD_RELOC_390_TLS_GD64 + -- : BFD_RELOC_390_TLS_GOTIE12 + -- : BFD_RELOC_390_TLS_GOTIE32 + -- : BFD_RELOC_390_TLS_GOTIE64 + -- : BFD_RELOC_390_TLS_LDM32 + -- : BFD_RELOC_390_TLS_LDM64 + -- : BFD_RELOC_390_TLS_IE32 + -- : BFD_RELOC_390_TLS_IE64 + -- : BFD_RELOC_390_TLS_IEENT + -- : BFD_RELOC_390_TLS_LE32 + -- : BFD_RELOC_390_TLS_LE64 + -- : BFD_RELOC_390_TLS_LDO32 + -- : BFD_RELOC_390_TLS_LDO64 + -- : BFD_RELOC_390_TLS_DTPMOD + -- : BFD_RELOC_390_TLS_DTPOFF + -- : BFD_RELOC_390_TLS_TPOFF + s390 tls relocations. + + -- : BFD_RELOC_390_20 + -- : BFD_RELOC_390_GOT20 + -- : BFD_RELOC_390_GOTPLT20 + -- : BFD_RELOC_390_TLS_GOTIE20 + Long displacement extension. + + -- : BFD_RELOC_IP2K_FR9 + Scenix IP2K - 9-bit register number / data address + + -- : BFD_RELOC_IP2K_BANK + Scenix IP2K - 4-bit register/data bank number + + -- : BFD_RELOC_IP2K_ADDR16CJP + Scenix IP2K - low 13 bits of instruction word address + + -- : BFD_RELOC_IP2K_PAGE3 + Scenix IP2K - high 3 bits of instruction word address + + -- : BFD_RELOC_IP2K_LO8DATA + -- : BFD_RELOC_IP2K_HI8DATA + -- : BFD_RELOC_IP2K_EX8DATA + Scenix IP2K - ext/low/high 8 bits of data address + + -- : BFD_RELOC_IP2K_LO8INSN + -- : BFD_RELOC_IP2K_HI8INSN + Scenix IP2K - low/high 8 bits of instruction word address + + -- : BFD_RELOC_IP2K_PC_SKIP + Scenix IP2K - even/odd PC modifier to modify snb pcl.0 + + -- : BFD_RELOC_IP2K_TEXT + Scenix IP2K - 16 bit word address in text section. + + -- : BFD_RELOC_IP2K_FR_OFFSET + Scenix IP2K - 7-bit sp or dp offset + + -- : BFD_RELOC_VPE4KMATH_DATA + -- : BFD_RELOC_VPE4KMATH_INSN + Scenix VPE4K coprocessor - data/insn-space addressing + + -- : BFD_RELOC_VTABLE_INHERIT + -- : BFD_RELOC_VTABLE_ENTRY + These two relocations are used by the linker to determine which of + the entries in a C++ virtual function table are actually used. + When the -gc-sections option is given, the linker will zero out + the entries that are not used, so that the code for those + functions need not be included in the output. + + VTABLE_INHERIT is a zero-space relocation used to describe to the + linker the inheritance tree of a C++ virtual function table. The + relocation's symbol should be the parent class' vtable, and the + relocation should be located at the child vtable. + + VTABLE_ENTRY is a zero-space relocation that describes the use of a + virtual function table entry. The reloc's symbol should refer to + the table of the class mentioned in the code. Off of that base, + an offset describes the entry that is being used. For Rela hosts, + this offset is stored in the reloc's addend. For Rel hosts, we + are forced to put this offset in the reloc's section offset. + + -- : BFD_RELOC_IA64_IMM14 + -- : BFD_RELOC_IA64_IMM22 + -- : BFD_RELOC_IA64_IMM64 + -- : BFD_RELOC_IA64_DIR32MSB + -- : BFD_RELOC_IA64_DIR32LSB + -- : BFD_RELOC_IA64_DIR64MSB + -- : BFD_RELOC_IA64_DIR64LSB + -- : BFD_RELOC_IA64_GPREL22 + -- : BFD_RELOC_IA64_GPREL64I + -- : BFD_RELOC_IA64_GPREL32MSB + -- : BFD_RELOC_IA64_GPREL32LSB + -- : BFD_RELOC_IA64_GPREL64MSB + -- : BFD_RELOC_IA64_GPREL64LSB + -- : BFD_RELOC_IA64_LTOFF22 + -- : BFD_RELOC_IA64_LTOFF64I + -- : BFD_RELOC_IA64_PLTOFF22 + -- : BFD_RELOC_IA64_PLTOFF64I + -- : BFD_RELOC_IA64_PLTOFF64MSB + -- : BFD_RELOC_IA64_PLTOFF64LSB + -- : BFD_RELOC_IA64_FPTR64I + -- : BFD_RELOC_IA64_FPTR32MSB + -- : BFD_RELOC_IA64_FPTR32LSB + -- : BFD_RELOC_IA64_FPTR64MSB + -- : BFD_RELOC_IA64_FPTR64LSB + -- : BFD_RELOC_IA64_PCREL21B + -- : BFD_RELOC_IA64_PCREL21BI + -- : BFD_RELOC_IA64_PCREL21M + -- : BFD_RELOC_IA64_PCREL21F + -- : BFD_RELOC_IA64_PCREL22 + -- : BFD_RELOC_IA64_PCREL60B + -- : BFD_RELOC_IA64_PCREL64I + -- : BFD_RELOC_IA64_PCREL32MSB + -- : BFD_RELOC_IA64_PCREL32LSB + -- : BFD_RELOC_IA64_PCREL64MSB + -- : BFD_RELOC_IA64_PCREL64LSB + -- : BFD_RELOC_IA64_LTOFF_FPTR22 + -- : BFD_RELOC_IA64_LTOFF_FPTR64I + -- : BFD_RELOC_IA64_LTOFF_FPTR32MSB + -- : BFD_RELOC_IA64_LTOFF_FPTR32LSB + -- : BFD_RELOC_IA64_LTOFF_FPTR64MSB + -- : BFD_RELOC_IA64_LTOFF_FPTR64LSB + -- : BFD_RELOC_IA64_SEGREL32MSB + -- : BFD_RELOC_IA64_SEGREL32LSB + -- : BFD_RELOC_IA64_SEGREL64MSB + -- : BFD_RELOC_IA64_SEGREL64LSB + -- : BFD_RELOC_IA64_SECREL32MSB + -- : BFD_RELOC_IA64_SECREL32LSB + -- : BFD_RELOC_IA64_SECREL64MSB + -- : BFD_RELOC_IA64_SECREL64LSB + -- : BFD_RELOC_IA64_REL32MSB + -- : BFD_RELOC_IA64_REL32LSB + -- : BFD_RELOC_IA64_REL64MSB + -- : BFD_RELOC_IA64_REL64LSB + -- : BFD_RELOC_IA64_LTV32MSB + -- : BFD_RELOC_IA64_LTV32LSB + -- : BFD_RELOC_IA64_LTV64MSB + -- : BFD_RELOC_IA64_LTV64LSB + -- : BFD_RELOC_IA64_IPLTMSB + -- : BFD_RELOC_IA64_IPLTLSB + -- : BFD_RELOC_IA64_COPY + -- : BFD_RELOC_IA64_LTOFF22X + -- : BFD_RELOC_IA64_LDXMOV + -- : BFD_RELOC_IA64_TPREL14 + -- : BFD_RELOC_IA64_TPREL22 + -- : BFD_RELOC_IA64_TPREL64I + -- : BFD_RELOC_IA64_TPREL64MSB + -- : BFD_RELOC_IA64_TPREL64LSB + -- : BFD_RELOC_IA64_LTOFF_TPREL22 + -- : BFD_RELOC_IA64_DTPMOD64MSB + -- : BFD_RELOC_IA64_DTPMOD64LSB + -- : BFD_RELOC_IA64_LTOFF_DTPMOD22 + -- : BFD_RELOC_IA64_DTPREL14 + -- : BFD_RELOC_IA64_DTPREL22 + -- : BFD_RELOC_IA64_DTPREL64I + -- : BFD_RELOC_IA64_DTPREL32MSB + -- : BFD_RELOC_IA64_DTPREL32LSB + -- : BFD_RELOC_IA64_DTPREL64MSB + -- : BFD_RELOC_IA64_DTPREL64LSB + -- : BFD_RELOC_IA64_LTOFF_DTPREL22 + Intel IA64 Relocations. + + -- : BFD_RELOC_M68HC11_HI8 + Motorola 68HC11 reloc. This is the 8 bit high part of an absolute + address. + + -- : BFD_RELOC_M68HC11_LO8 + Motorola 68HC11 reloc. This is the 8 bit low part of an absolute + address. + + -- : BFD_RELOC_M68HC11_3B + Motorola 68HC11 reloc. This is the 3 bit of a value. + + -- : BFD_RELOC_M68HC11_RL_JUMP + Motorola 68HC11 reloc. This reloc marks the beginning of a + jump/call instruction. It is used for linker relaxation to + correctly identify beginning of instruction and change some + branches to use PC-relative addressing mode. + + -- : BFD_RELOC_M68HC11_RL_GROUP + Motorola 68HC11 reloc. This reloc marks a group of several + instructions that gcc generates and for which the linker + relaxation pass can modify and/or remove some of them. + + -- : BFD_RELOC_M68HC11_LO16 + Motorola 68HC11 reloc. This is the 16-bit lower part of an + address. It is used for 'call' instruction to specify the symbol + address without any special transformation (due to memory bank + window). + + -- : BFD_RELOC_M68HC11_PAGE + Motorola 68HC11 reloc. This is a 8-bit reloc that specifies the + page number of an address. It is used by 'call' instruction to + specify the page number of the symbol. + + -- : BFD_RELOC_M68HC11_24 + Motorola 68HC11 reloc. This is a 24-bit reloc that represents the + address with a 16-bit value and a 8-bit page number. The symbol + address is transformed to follow the 16K memory bank of 68HC12 + (seen as mapped in the window). + + -- : BFD_RELOC_M68HC12_5B + Motorola 68HC12 reloc. This is the 5 bits of a value. + + -- : BFD_RELOC_16C_NUM08 + -- : BFD_RELOC_16C_NUM08_C + -- : BFD_RELOC_16C_NUM16 + -- : BFD_RELOC_16C_NUM16_C + -- : BFD_RELOC_16C_NUM32 + -- : BFD_RELOC_16C_NUM32_C + -- : BFD_RELOC_16C_DISP04 + -- : BFD_RELOC_16C_DISP04_C + -- : BFD_RELOC_16C_DISP08 + -- : BFD_RELOC_16C_DISP08_C + -- : BFD_RELOC_16C_DISP16 + -- : BFD_RELOC_16C_DISP16_C + -- : BFD_RELOC_16C_DISP24 + -- : BFD_RELOC_16C_DISP24_C + -- : BFD_RELOC_16C_DISP24a + -- : BFD_RELOC_16C_DISP24a_C + -- : BFD_RELOC_16C_REG04 + -- : BFD_RELOC_16C_REG04_C + -- : BFD_RELOC_16C_REG04a + -- : BFD_RELOC_16C_REG04a_C + -- : BFD_RELOC_16C_REG14 + -- : BFD_RELOC_16C_REG14_C + -- : BFD_RELOC_16C_REG16 + -- : BFD_RELOC_16C_REG16_C + -- : BFD_RELOC_16C_REG20 + -- : BFD_RELOC_16C_REG20_C + -- : BFD_RELOC_16C_ABS20 + -- : BFD_RELOC_16C_ABS20_C + -- : BFD_RELOC_16C_ABS24 + -- : BFD_RELOC_16C_ABS24_C + -- : BFD_RELOC_16C_IMM04 + -- : BFD_RELOC_16C_IMM04_C + -- : BFD_RELOC_16C_IMM16 + -- : BFD_RELOC_16C_IMM16_C + -- : BFD_RELOC_16C_IMM20 + -- : BFD_RELOC_16C_IMM20_C + -- : BFD_RELOC_16C_IMM24 + -- : BFD_RELOC_16C_IMM24_C + -- : BFD_RELOC_16C_IMM32 + -- : BFD_RELOC_16C_IMM32_C + NS CR16C Relocations. + + -- : BFD_RELOC_CRX_REL4 + -- : BFD_RELOC_CRX_REL8 + -- : BFD_RELOC_CRX_REL8_CMP + -- : BFD_RELOC_CRX_REL16 + -- : BFD_RELOC_CRX_REL24 + -- : BFD_RELOC_CRX_REL32 + -- : BFD_RELOC_CRX_REGREL12 + -- : BFD_RELOC_CRX_REGREL22 + -- : BFD_RELOC_CRX_REGREL28 + -- : BFD_RELOC_CRX_REGREL32 + -- : BFD_RELOC_CRX_ABS16 + -- : BFD_RELOC_CRX_ABS32 + -- : BFD_RELOC_CRX_NUM8 + -- : BFD_RELOC_CRX_NUM16 + -- : BFD_RELOC_CRX_NUM32 + -- : BFD_RELOC_CRX_IMM16 + -- : BFD_RELOC_CRX_IMM32 + -- : BFD_RELOC_CRX_SWITCH8 + -- : BFD_RELOC_CRX_SWITCH16 + -- : BFD_RELOC_CRX_SWITCH32 + NS CRX Relocations. + + -- : BFD_RELOC_CRIS_BDISP8 + -- : BFD_RELOC_CRIS_UNSIGNED_5 + -- : BFD_RELOC_CRIS_SIGNED_6 + -- : BFD_RELOC_CRIS_UNSIGNED_6 + -- : BFD_RELOC_CRIS_SIGNED_8 + -- : BFD_RELOC_CRIS_UNSIGNED_8 + -- : BFD_RELOC_CRIS_SIGNED_16 + -- : BFD_RELOC_CRIS_UNSIGNED_16 + -- : BFD_RELOC_CRIS_LAPCQ_OFFSET + -- : BFD_RELOC_CRIS_UNSIGNED_4 + These relocs are only used within the CRIS assembler. They are not + (at present) written to any object files. + + -- : BFD_RELOC_CRIS_COPY + -- : BFD_RELOC_CRIS_GLOB_DAT + -- : BFD_RELOC_CRIS_JUMP_SLOT + -- : BFD_RELOC_CRIS_RELATIVE + Relocs used in ELF shared libraries for CRIS. + + -- : BFD_RELOC_CRIS_32_GOT + 32-bit offset to symbol-entry within GOT. + + -- : BFD_RELOC_CRIS_16_GOT + 16-bit offset to symbol-entry within GOT. + + -- : BFD_RELOC_CRIS_32_GOTPLT + 32-bit offset to symbol-entry within GOT, with PLT handling. + + -- : BFD_RELOC_CRIS_16_GOTPLT + 16-bit offset to symbol-entry within GOT, with PLT handling. + + -- : BFD_RELOC_CRIS_32_GOTREL + 32-bit offset to symbol, relative to GOT. + + -- : BFD_RELOC_CRIS_32_PLT_GOTREL + 32-bit offset to symbol with PLT entry, relative to GOT. + + -- : BFD_RELOC_CRIS_32_PLT_PCREL + 32-bit offset to symbol with PLT entry, relative to this + relocation. + + -- : BFD_RELOC_860_COPY + -- : BFD_RELOC_860_GLOB_DAT + -- : BFD_RELOC_860_JUMP_SLOT + -- : BFD_RELOC_860_RELATIVE + -- : BFD_RELOC_860_PC26 + -- : BFD_RELOC_860_PLT26 + -- : BFD_RELOC_860_PC16 + -- : BFD_RELOC_860_LOW0 + -- : BFD_RELOC_860_SPLIT0 + -- : BFD_RELOC_860_LOW1 + -- : BFD_RELOC_860_SPLIT1 + -- : BFD_RELOC_860_LOW2 + -- : BFD_RELOC_860_SPLIT2 + -- : BFD_RELOC_860_LOW3 + -- : BFD_RELOC_860_LOGOT0 + -- : BFD_RELOC_860_SPGOT0 + -- : BFD_RELOC_860_LOGOT1 + -- : BFD_RELOC_860_SPGOT1 + -- : BFD_RELOC_860_LOGOTOFF0 + -- : BFD_RELOC_860_SPGOTOFF0 + -- : BFD_RELOC_860_LOGOTOFF1 + -- : BFD_RELOC_860_SPGOTOFF1 + -- : BFD_RELOC_860_LOGOTOFF2 + -- : BFD_RELOC_860_LOGOTOFF3 + -- : BFD_RELOC_860_LOPC + -- : BFD_RELOC_860_HIGHADJ + -- : BFD_RELOC_860_HAGOT + -- : BFD_RELOC_860_HAGOTOFF + -- : BFD_RELOC_860_HAPC + -- : BFD_RELOC_860_HIGH + -- : BFD_RELOC_860_HIGOT + -- : BFD_RELOC_860_HIGOTOFF + Intel i860 Relocations. + + -- : BFD_RELOC_OPENRISC_ABS_26 + -- : BFD_RELOC_OPENRISC_REL_26 + OpenRISC Relocations. + + -- : BFD_RELOC_H8_DIR16A8 + -- : BFD_RELOC_H8_DIR16R8 + -- : BFD_RELOC_H8_DIR24A8 + -- : BFD_RELOC_H8_DIR24R8 + -- : BFD_RELOC_H8_DIR32A16 + H8 elf Relocations. + + -- : BFD_RELOC_XSTORMY16_REL_12 + -- : BFD_RELOC_XSTORMY16_12 + -- : BFD_RELOC_XSTORMY16_24 + -- : BFD_RELOC_XSTORMY16_FPTR16 + Sony Xstormy16 Relocations. + + -- : BFD_RELOC_VAX_GLOB_DAT + -- : BFD_RELOC_VAX_JMP_SLOT + -- : BFD_RELOC_VAX_RELATIVE + Relocations used by VAX ELF. + + -- : BFD_RELOC_MSP430_10_PCREL + -- : BFD_RELOC_MSP430_16_PCREL + -- : BFD_RELOC_MSP430_16 + -- : BFD_RELOC_MSP430_16_PCREL_BYTE + -- : BFD_RELOC_MSP430_16_BYTE + -- : BFD_RELOC_MSP430_2X_PCREL + -- : BFD_RELOC_MSP430_RL_PCREL + msp430 specific relocation codes + + -- : BFD_RELOC_IQ2000_OFFSET_16 + -- : BFD_RELOC_IQ2000_OFFSET_21 + -- : BFD_RELOC_IQ2000_UHI16 + IQ2000 Relocations. + + -- : BFD_RELOC_XTENSA_RTLD + Special Xtensa relocation used only by PLT entries in ELF shared + objects to indicate that the runtime linker should set the value + to one of its own internal functions or data structures. + + -- : BFD_RELOC_XTENSA_GLOB_DAT + -- : BFD_RELOC_XTENSA_JMP_SLOT + -- : BFD_RELOC_XTENSA_RELATIVE + Xtensa relocations for ELF shared objects. + + -- : BFD_RELOC_XTENSA_PLT + Xtensa relocation used in ELF object files for symbols that may + require PLT entries. Otherwise, this is just a generic 32-bit + relocation. + + -- : BFD_RELOC_XTENSA_DIFF8 + -- : BFD_RELOC_XTENSA_DIFF16 + -- : BFD_RELOC_XTENSA_DIFF32 + Xtensa relocations to mark the difference of two local symbols. + These are only needed to support linker relaxation and can be + ignored when not relaxing. The field is set to the value of the + difference assuming no relaxation. The relocation encodes the + position of the first symbol so the linker can determine whether + to adjust the field value. + + -- : BFD_RELOC_XTENSA_SLOT0_OP + -- : BFD_RELOC_XTENSA_SLOT1_OP + -- : BFD_RELOC_XTENSA_SLOT2_OP + -- : BFD_RELOC_XTENSA_SLOT3_OP + -- : BFD_RELOC_XTENSA_SLOT4_OP + -- : BFD_RELOC_XTENSA_SLOT5_OP + -- : BFD_RELOC_XTENSA_SLOT6_OP + -- : BFD_RELOC_XTENSA_SLOT7_OP + -- : BFD_RELOC_XTENSA_SLOT8_OP + -- : BFD_RELOC_XTENSA_SLOT9_OP + -- : BFD_RELOC_XTENSA_SLOT10_OP + -- : BFD_RELOC_XTENSA_SLOT11_OP + -- : BFD_RELOC_XTENSA_SLOT12_OP + -- : BFD_RELOC_XTENSA_SLOT13_OP + -- : BFD_RELOC_XTENSA_SLOT14_OP + Generic Xtensa relocations for instruction operands. Only the slot + number is encoded in the relocation. The relocation applies to the + last PC-relative immediate operand, or if there are no PC-relative + immediates, to the last immediate operand. + + -- : BFD_RELOC_XTENSA_SLOT0_ALT + -- : BFD_RELOC_XTENSA_SLOT1_ALT + -- : BFD_RELOC_XTENSA_SLOT2_ALT + -- : BFD_RELOC_XTENSA_SLOT3_ALT + -- : BFD_RELOC_XTENSA_SLOT4_ALT + -- : BFD_RELOC_XTENSA_SLOT5_ALT + -- : BFD_RELOC_XTENSA_SLOT6_ALT + -- : BFD_RELOC_XTENSA_SLOT7_ALT + -- : BFD_RELOC_XTENSA_SLOT8_ALT + -- : BFD_RELOC_XTENSA_SLOT9_ALT + -- : BFD_RELOC_XTENSA_SLOT10_ALT + -- : BFD_RELOC_XTENSA_SLOT11_ALT + -- : BFD_RELOC_XTENSA_SLOT12_ALT + -- : BFD_RELOC_XTENSA_SLOT13_ALT + -- : BFD_RELOC_XTENSA_SLOT14_ALT + Alternate Xtensa relocations. Only the slot is encoded in the + relocation. The meaning of these relocations is opcode-specific. + + -- : BFD_RELOC_XTENSA_OP0 + -- : BFD_RELOC_XTENSA_OP1 + -- : BFD_RELOC_XTENSA_OP2 + Xtensa relocations for backward compatibility. These have all been + replaced by BFD_RELOC_XTENSA_SLOT0_OP. + + -- : BFD_RELOC_XTENSA_ASM_EXPAND + Xtensa relocation to mark that the assembler expanded the + instructions from an original target. The expansion size is + encoded in the reloc size. + + -- : BFD_RELOC_XTENSA_ASM_SIMPLIFY + Xtensa relocation to mark that the linker should simplify + assembler-expanded instructions. This is commonly used internally + by the linker after analysis of a BFD_RELOC_XTENSA_ASM_EXPAND. + + + typedef enum bfd_reloc_code_real bfd_reloc_code_real_type; + +2.11.0.2 `bfd_reloc_type_lookup' +................................ + +*Synopsis* + reloc_howto_type *bfd_reloc_type_lookup + (bfd *abfd, bfd_reloc_code_real_type code); + *Description* +Return a pointer to a howto structure which, when invoked, will perform +the relocation CODE on data from the architecture noted. + +2.11.0.3 `bfd_default_reloc_type_lookup' +........................................ + +*Synopsis* + reloc_howto_type *bfd_default_reloc_type_lookup + (bfd *abfd, bfd_reloc_code_real_type code); + *Description* +Provides a default relocation lookup routine for any architecture. + +2.11.0.4 `bfd_get_reloc_code_name' +.................................. + +*Synopsis* + const char *bfd_get_reloc_code_name (bfd_reloc_code_real_type code); + *Description* +Provides a printable name for the supplied relocation code. Useful +mainly for printing error messages. + +2.11.0.5 `bfd_generic_relax_section' +.................................... + +*Synopsis* + bfd_boolean bfd_generic_relax_section + (bfd *abfd, + asection *section, + struct bfd_link_info *, + bfd_boolean *); + *Description* +Provides default handling for relaxing for back ends which don't do +relaxing. + +2.11.0.6 `bfd_generic_gc_sections' +.................................. + +*Synopsis* + bfd_boolean bfd_generic_gc_sections + (bfd *, struct bfd_link_info *); + *Description* +Provides default handling for relaxing for back ends which don't do +section gc - i.e., does nothing. + +2.11.0.7 `bfd_generic_merge_sections' +..................................... + +*Synopsis* + bfd_boolean bfd_generic_merge_sections + (bfd *, struct bfd_link_info *); + *Description* +Provides default handling for SEC_MERGE section merging for back ends +which don't have SEC_MERGE support - i.e., does nothing. + +2.11.0.8 `bfd_generic_get_relocated_section_contents' +..................................................... + +*Synopsis* + bfd_byte *bfd_generic_get_relocated_section_contents + (bfd *abfd, + struct bfd_link_info *link_info, + struct bfd_link_order *link_order, + bfd_byte *data, + bfd_boolean relocatable, + asymbol **symbols); + *Description* +Provides default handling of relocation effort for back ends which +can't be bothered to do it efficiently. + + +File: bfd.info, Node: Core Files, Next: Targets, Prev: Relocations, Up: BFD front end + +2.12 Core files +=============== + +*Description* +These are functions pertaining to core files. + +2.12.0.1 `bfd_core_file_failing_command' +........................................ + +*Synopsis* + const char *bfd_core_file_failing_command (bfd *abfd); + *Description* +Return a read-only string explaining which program was running when it +failed and produced the core file ABFD. + +2.12.0.2 `bfd_core_file_failing_signal' +....................................... + +*Synopsis* + int bfd_core_file_failing_signal (bfd *abfd); + *Description* +Returns the signal number which caused the core dump which generated +the file the BFD ABFD is attached to. + +2.12.0.3 `core_file_matches_executable_p' +......................................... + +*Synopsis* + bfd_boolean core_file_matches_executable_p + (bfd *core_bfd, bfd *exec_bfd); + *Description* +Return `TRUE' if the core file attached to CORE_BFD was generated by a +run of the executable file attached to EXEC_BFD, `FALSE' otherwise. + + +File: bfd.info, Node: Targets, Next: Architectures, Prev: Core Files, Up: BFD front end + +2.13 Targets +============ + +*Description* +Each port of BFD to a different machine requires the creation of a +target back end. All the back end provides to the root part of BFD is a +structure containing pointers to functions which perform certain low +level operations on files. BFD translates the applications's requests +through a pointer into calls to the back end routines. + + When a file is opened with `bfd_openr', its format and target are +unknown. BFD uses various mechanisms to determine how to interpret the +file. The operations performed are: + + * Create a BFD by calling the internal routine `_bfd_new_bfd', then + call `bfd_find_target' with the target string supplied to + `bfd_openr' and the new BFD pointer. + + * If a null target string was provided to `bfd_find_target', look up + the environment variable `GNUTARGET' and use that as the target + string. + + * If the target string is still `NULL', or the target string is + `default', then use the first item in the target vector as the + target type, and set `target_defaulted' in the BFD to cause + `bfd_check_format' to loop through all the targets. *Note + bfd_target::. *Note Formats::. + + * Otherwise, inspect the elements in the target vector one by one, + until a match on target name is found. When found, use it. + + * Otherwise return the error `bfd_error_invalid_target' to + `bfd_openr'. + + * `bfd_openr' attempts to open the file using `bfd_open_file', and + returns the BFD. + Once the BFD has been opened and the target selected, the file +format may be determined. This is done by calling `bfd_check_format' on +the BFD with a suggested format. If `target_defaulted' has been set, +each possible target type is tried to see if it recognizes the +specified format. `bfd_check_format' returns `TRUE' when the caller +guesses right. + +* Menu: + +* bfd_target:: + + +File: bfd.info, Node: bfd_target, Prev: Targets, Up: Targets + +2.13.1 bfd_target +----------------- + +*Description* +This structure contains everything that BFD knows about a target. It +includes things like its byte order, name, and which routines to call +to do various operations. + + Every BFD points to a target structure with its `xvec' member. + + The macros below are used to dispatch to functions through the +`bfd_target' vector. They are used in a number of macros further down +in `bfd.h', and are also used when calling various routines by hand +inside the BFD implementation. The ARGLIST argument must be +parenthesized; it contains all the arguments to the called function. + + They make the documentation (more) unpleasant to read, so if someone +wants to fix this and not break the above, please do. + #define BFD_SEND(bfd, message, arglist) \ + ((*((bfd)->xvec->message)) arglist) + + #ifdef DEBUG_BFD_SEND + #undef BFD_SEND + #define BFD_SEND(bfd, message, arglist) \ + (((bfd) && (bfd)->xvec && (bfd)->xvec->message) ? \ + ((*((bfd)->xvec->message)) arglist) : \ + (bfd_assert (__FILE__,__LINE__), NULL)) + #endif + For operations which index on the BFD format: + #define BFD_SEND_FMT(bfd, message, arglist) \ + (((bfd)->xvec->message[(int) ((bfd)->format)]) arglist) + + #ifdef DEBUG_BFD_SEND + #undef BFD_SEND_FMT + #define BFD_SEND_FMT(bfd, message, arglist) \ + (((bfd) && (bfd)->xvec && (bfd)->xvec->message) ? \ + (((bfd)->xvec->message[(int) ((bfd)->format)]) arglist) : \ + (bfd_assert (__FILE__,__LINE__), NULL)) + #endif + This is the structure which defines the type of BFD this is. The +`xvec' member of the struct `bfd' itself points here. Each module that +implements access to a different target under BFD, defines one of these. + + FIXME, these names should be rationalised with the names of the +entry points which call them. Too bad we can't have one macro to define +them both! + enum bfd_flavour + { + bfd_target_unknown_flavour, + bfd_target_aout_flavour, + bfd_target_coff_flavour, + bfd_target_ecoff_flavour, + bfd_target_xcoff_flavour, + bfd_target_elf_flavour, + bfd_target_ieee_flavour, + bfd_target_nlm_flavour, + bfd_target_oasys_flavour, + bfd_target_tekhex_flavour, + bfd_target_srec_flavour, + bfd_target_ihex_flavour, + bfd_target_som_flavour, + bfd_target_os9k_flavour, + bfd_target_versados_flavour, + bfd_target_msdos_flavour, + bfd_target_ovax_flavour, + bfd_target_evax_flavour, + bfd_target_mmo_flavour, + bfd_target_mach_o_flavour, + bfd_target_pef_flavour, + bfd_target_pef_xlib_flavour, + bfd_target_sym_flavour + }; + + enum bfd_endian { BFD_ENDIAN_BIG, BFD_ENDIAN_LITTLE, BFD_ENDIAN_UNKNOWN }; + + /* Forward declaration. */ + typedef struct bfd_link_info _bfd_link_info; + + typedef struct bfd_target + { + /* Identifies the kind of target, e.g., SunOS4, Ultrix, etc. */ + char *name; + + /* The "flavour" of a back end is a general indication about + the contents of a file. */ + enum bfd_flavour flavour; + + /* The order of bytes within the data area of a file. */ + enum bfd_endian byteorder; + + /* The order of bytes within the header parts of a file. */ + enum bfd_endian header_byteorder; + + /* A mask of all the flags which an executable may have set - + from the set `BFD_NO_FLAGS', `HAS_RELOC', ...`D_PAGED'. */ + flagword object_flags; + + /* A mask of all the flags which a section may have set - from + the set `SEC_NO_FLAGS', `SEC_ALLOC', ...`SET_NEVER_LOAD'. */ + flagword section_flags; + + /* The character normally found at the front of a symbol. + (if any), perhaps `_'. */ + char symbol_leading_char; + + /* The pad character for file names within an archive header. */ + char ar_pad_char; + + /* The maximum number of characters in an archive header. */ + unsigned short ar_max_namelen; + + /* Entries for byte swapping for data. These are different from the + other entry points, since they don't take a BFD as the first argument. + Certain other handlers could do the same. */ + bfd_uint64_t (*bfd_getx64) (const void *); + bfd_int64_t (*bfd_getx_signed_64) (const void *); + void (*bfd_putx64) (bfd_uint64_t, void *); + bfd_vma (*bfd_getx32) (const void *); + bfd_signed_vma (*bfd_getx_signed_32) (const void *); + void (*bfd_putx32) (bfd_vma, void *); + bfd_vma (*bfd_getx16) (const void *); + bfd_signed_vma (*bfd_getx_signed_16) (const void *); + void (*bfd_putx16) (bfd_vma, void *); + + /* Byte swapping for the headers. */ + bfd_uint64_t (*bfd_h_getx64) (const void *); + bfd_int64_t (*bfd_h_getx_signed_64) (const void *); + void (*bfd_h_putx64) (bfd_uint64_t, void *); + bfd_vma (*bfd_h_getx32) (const void *); + bfd_signed_vma (*bfd_h_getx_signed_32) (const void *); + void (*bfd_h_putx32) (bfd_vma, void *); + bfd_vma (*bfd_h_getx16) (const void *); + bfd_signed_vma (*bfd_h_getx_signed_16) (const void *); + void (*bfd_h_putx16) (bfd_vma, void *); + + /* Format dependent routines: these are vectors of entry points + within the target vector structure, one for each format to check. */ + + /* Check the format of a file being read. Return a `bfd_target *' or zero. */ + const struct bfd_target *(*_bfd_check_format[bfd_type_end]) (bfd *); + + /* Set the format of a file being written. */ + bfd_boolean (*_bfd_set_format[bfd_type_end]) (bfd *); + + /* Write cached information into a file being written, at `bfd_close'. */ + bfd_boolean (*_bfd_write_contents[bfd_type_end]) (bfd *); + The general target vector. These vectors are initialized using the +BFD_JUMP_TABLE macros. + + /* Generic entry points. */ + #define BFD_JUMP_TABLE_GENERIC(NAME) \ + NAME##_close_and_cleanup, \ + NAME##_bfd_free_cached_info, \ + NAME##_new_section_hook, \ + NAME##_get_section_contents, \ + NAME##_get_section_contents_in_window + + /* Called when the BFD is being closed to do any necessary cleanup. */ + bfd_boolean (*_close_and_cleanup) (bfd *); + /* Ask the BFD to free all cached information. */ + bfd_boolean (*_bfd_free_cached_info) (bfd *); + /* Called when a new section is created. */ + bfd_boolean (*_new_section_hook) (bfd *, sec_ptr); + /* Read the contents of a section. */ + bfd_boolean (*_bfd_get_section_contents) + (bfd *, sec_ptr, void *, file_ptr, bfd_size_type); + bfd_boolean (*_bfd_get_section_contents_in_window) + (bfd *, sec_ptr, bfd_window *, file_ptr, bfd_size_type); + + /* Entry points to copy private data. */ + #define BFD_JUMP_TABLE_COPY(NAME) \ + NAME##_bfd_copy_private_bfd_data, \ + NAME##_bfd_merge_private_bfd_data, \ + NAME##_bfd_copy_private_section_data, \ + NAME##_bfd_copy_private_symbol_data, \ + NAME##_bfd_copy_private_header_data, \ + NAME##_bfd_set_private_flags, \ + NAME##_bfd_print_private_bfd_data + + /* Called to copy BFD general private data from one object file + to another. */ + bfd_boolean (*_bfd_copy_private_bfd_data) (bfd *, bfd *); + /* Called to merge BFD general private data from one object file + to a common output file when linking. */ + bfd_boolean (*_bfd_merge_private_bfd_data) (bfd *, bfd *); + /* Called to copy BFD private section data from one object file + to another. */ + bfd_boolean (*_bfd_copy_private_section_data) + (bfd *, sec_ptr, bfd *, sec_ptr); + /* Called to copy BFD private symbol data from one symbol + to another. */ + bfd_boolean (*_bfd_copy_private_symbol_data) + (bfd *, asymbol *, bfd *, asymbol *); + /* Called to copy BFD private header data from one object file + to another. */ + bfd_boolean (*_bfd_copy_private_header_data) + (bfd *, bfd *); + /* Called to set private backend flags. */ + bfd_boolean (*_bfd_set_private_flags) (bfd *, flagword); + + /* Called to print private BFD data. */ + bfd_boolean (*_bfd_print_private_bfd_data) (bfd *, void *); + + /* Core file entry points. */ + #define BFD_JUMP_TABLE_CORE(NAME) \ + NAME##_core_file_failing_command, \ + NAME##_core_file_failing_signal, \ + NAME##_core_file_matches_executable_p + + char * (*_core_file_failing_command) (bfd *); + int (*_core_file_failing_signal) (bfd *); + bfd_boolean (*_core_file_matches_executable_p) (bfd *, bfd *); + + /* Archive entry points. */ + #define BFD_JUMP_TABLE_ARCHIVE(NAME) \ + NAME##_slurp_armap, \ + NAME##_slurp_extended_name_table, \ + NAME##_construct_extended_name_table, \ + NAME##_truncate_arname, \ + NAME##_write_armap, \ + NAME##_read_ar_hdr, \ + NAME##_openr_next_archived_file, \ + NAME##_get_elt_at_index, \ + NAME##_generic_stat_arch_elt, \ + NAME##_update_armap_timestamp + + bfd_boolean (*_bfd_slurp_armap) (bfd *); + bfd_boolean (*_bfd_slurp_extended_name_table) (bfd *); + bfd_boolean (*_bfd_construct_extended_name_table) + (bfd *, char **, bfd_size_type *, const char **); + void (*_bfd_truncate_arname) (bfd *, const char *, char *); + bfd_boolean (*write_armap) + (bfd *, unsigned int, struct orl *, unsigned int, int); + void * (*_bfd_read_ar_hdr_fn) (bfd *); + bfd * (*openr_next_archived_file) (bfd *, bfd *); + #define bfd_get_elt_at_index(b,i) BFD_SEND (b, _bfd_get_elt_at_index, (b,i)) + bfd * (*_bfd_get_elt_at_index) (bfd *, symindex); + int (*_bfd_stat_arch_elt) (bfd *, struct stat *); + bfd_boolean (*_bfd_update_armap_timestamp) (bfd *); + + /* Entry points used for symbols. */ + #define BFD_JUMP_TABLE_SYMBOLS(NAME) \ + NAME##_get_symtab_upper_bound, \ + NAME##_canonicalize_symtab, \ + NAME##_make_empty_symbol, \ + NAME##_print_symbol, \ + NAME##_get_symbol_info, \ + NAME##_bfd_is_local_label_name, \ + NAME##_bfd_is_target_special_symbol, \ + NAME##_get_lineno, \ + NAME##_find_nearest_line, \ + NAME##_bfd_make_debug_symbol, \ + NAME##_read_minisymbols, \ + NAME##_minisymbol_to_symbol + + long (*_bfd_get_symtab_upper_bound) (bfd *); + long (*_bfd_canonicalize_symtab) + (bfd *, struct bfd_symbol **); + struct bfd_symbol * + (*_bfd_make_empty_symbol) (bfd *); + void (*_bfd_print_symbol) + (bfd *, void *, struct bfd_symbol *, bfd_print_symbol_type); + #define bfd_print_symbol(b,p,s,e) BFD_SEND (b, _bfd_print_symbol, (b,p,s,e)) + void (*_bfd_get_symbol_info) + (bfd *, struct bfd_symbol *, symbol_info *); + #define bfd_get_symbol_info(b,p,e) BFD_SEND (b, _bfd_get_symbol_info, (b,p,e)) + bfd_boolean (*_bfd_is_local_label_name) (bfd *, const char *); + bfd_boolean (*_bfd_is_target_special_symbol) (bfd *, asymbol *); + alent * (*_get_lineno) (bfd *, struct bfd_symbol *); + bfd_boolean (*_bfd_find_nearest_line) + (bfd *, struct bfd_section *, struct bfd_symbol **, bfd_vma, + const char **, const char **, unsigned int *); + /* Back-door to allow format-aware applications to create debug symbols + while using BFD for everything else. Currently used by the assembler + when creating COFF files. */ + asymbol * (*_bfd_make_debug_symbol) + (bfd *, void *, unsigned long size); + #define bfd_read_minisymbols(b, d, m, s) \ + BFD_SEND (b, _read_minisymbols, (b, d, m, s)) + long (*_read_minisymbols) + (bfd *, bfd_boolean, void **, unsigned int *); + #define bfd_minisymbol_to_symbol(b, d, m, f) \ + BFD_SEND (b, _minisymbol_to_symbol, (b, d, m, f)) + asymbol * (*_minisymbol_to_symbol) + (bfd *, bfd_boolean, const void *, asymbol *); + + /* Routines for relocs. */ + #define BFD_JUMP_TABLE_RELOCS(NAME) \ + NAME##_get_reloc_upper_bound, \ + NAME##_canonicalize_reloc, \ + NAME##_bfd_reloc_type_lookup + + long (*_get_reloc_upper_bound) (bfd *, sec_ptr); + long (*_bfd_canonicalize_reloc) + (bfd *, sec_ptr, arelent **, struct bfd_symbol **); + /* See documentation on reloc types. */ + reloc_howto_type * + (*reloc_type_lookup) (bfd *, bfd_reloc_code_real_type); + + /* Routines used when writing an object file. */ + #define BFD_JUMP_TABLE_WRITE(NAME) \ + NAME##_set_arch_mach, \ + NAME##_set_section_contents + + bfd_boolean (*_bfd_set_arch_mach) + (bfd *, enum bfd_architecture, unsigned long); + bfd_boolean (*_bfd_set_section_contents) + (bfd *, sec_ptr, const void *, file_ptr, bfd_size_type); + + /* Routines used by the linker. */ + #define BFD_JUMP_TABLE_LINK(NAME) \ + NAME##_sizeof_headers, \ + NAME##_bfd_get_relocated_section_contents, \ + NAME##_bfd_relax_section, \ + NAME##_bfd_link_hash_table_create, \ + NAME##_bfd_link_hash_table_free, \ + NAME##_bfd_link_add_symbols, \ + NAME##_bfd_link_just_syms, \ + NAME##_bfd_final_link, \ + NAME##_bfd_link_split_section, \ + NAME##_bfd_gc_sections, \ + NAME##_bfd_merge_sections, \ + NAME##_bfd_is_group_section, \ + NAME##_bfd_discard_group, \ + NAME##_section_already_linked \ + + int (*_bfd_sizeof_headers) (bfd *, bfd_boolean); + bfd_byte * (*_bfd_get_relocated_section_contents) + (bfd *, struct bfd_link_info *, struct bfd_link_order *, + bfd_byte *, bfd_boolean, struct bfd_symbol **); + + bfd_boolean (*_bfd_relax_section) + (bfd *, struct bfd_section *, struct bfd_link_info *, bfd_boolean *); + + /* Create a hash table for the linker. Different backends store + different information in this table. */ + struct bfd_link_hash_table * + (*_bfd_link_hash_table_create) (bfd *); + + /* Release the memory associated with the linker hash table. */ + void (*_bfd_link_hash_table_free) (struct bfd_link_hash_table *); + + /* Add symbols from this object file into the hash table. */ + bfd_boolean (*_bfd_link_add_symbols) (bfd *, struct bfd_link_info *); + + /* Indicate that we are only retrieving symbol values from this section. */ + void (*_bfd_link_just_syms) (asection *, struct bfd_link_info *); + + /* Do a link based on the link_order structures attached to each + section of the BFD. */ + bfd_boolean (*_bfd_final_link) (bfd *, struct bfd_link_info *); + + /* Should this section be split up into smaller pieces during linking. */ + bfd_boolean (*_bfd_link_split_section) (bfd *, struct bfd_section *); + + /* Remove sections that are not referenced from the output. */ + bfd_boolean (*_bfd_gc_sections) (bfd *, struct bfd_link_info *); + + /* Attempt to merge SEC_MERGE sections. */ + bfd_boolean (*_bfd_merge_sections) (bfd *, struct bfd_link_info *); + + /* Is this section a member of a group? */ + bfd_boolean (*_bfd_is_group_section) (bfd *, const struct bfd_section *); + + /* Discard members of a group. */ + bfd_boolean (*_bfd_discard_group) (bfd *, struct bfd_section *); + + /* Check if SEC has been already linked during a reloceatable or + final link. */ + void (*_section_already_linked) (bfd *, struct bfd_section *); + + /* Routines to handle dynamic symbols and relocs. */ + #define BFD_JUMP_TABLE_DYNAMIC(NAME) \ + NAME##_get_dynamic_symtab_upper_bound, \ + NAME##_canonicalize_dynamic_symtab, \ + NAME##_get_synthetic_symtab, \ + NAME##_get_dynamic_reloc_upper_bound, \ + NAME##_canonicalize_dynamic_reloc + + /* Get the amount of memory required to hold the dynamic symbols. */ + long (*_bfd_get_dynamic_symtab_upper_bound) (bfd *); + /* Read in the dynamic symbols. */ + long (*_bfd_canonicalize_dynamic_symtab) + (bfd *, struct bfd_symbol **); + /* Create synthetized symbols. */ + long (*_bfd_get_synthetic_symtab) + (bfd *, long, struct bfd_symbol **, long, struct bfd_symbol **, + struct bfd_symbol **); + /* Get the amount of memory required to hold the dynamic relocs. */ + long (*_bfd_get_dynamic_reloc_upper_bound) (bfd *); + /* Read in the dynamic relocs. */ + long (*_bfd_canonicalize_dynamic_reloc) + (bfd *, arelent **, struct bfd_symbol **); + A pointer to an alternative bfd_target in case the current one is not +satisfactory. This can happen when the target cpu supports both big +and little endian code, and target chosen by the linker has the wrong +endianness. The function open_output() in ld/ldlang.c uses this field +to find an alternative output format that is suitable. + /* Opposite endian version of this target. */ + const struct bfd_target * alternative_target; + + /* Data for use by back-end routines, which isn't + generic enough to belong in this structure. */ + const void *backend_data; + + } bfd_target; + +2.13.1.1 `bfd_set_default_target' +................................. + +*Synopsis* + bfd_boolean bfd_set_default_target (const char *name); + *Description* +Set the default target vector to use when recognizing a BFD. This +takes the name of the target, which may be a BFD target name or a +configuration triplet. + +2.13.1.2 `bfd_find_target' +.......................... + +*Synopsis* + const bfd_target *bfd_find_target (const char *target_name, bfd *abfd); + *Description* +Return a pointer to the transfer vector for the object target named +TARGET_NAME. If TARGET_NAME is `NULL', choose the one in the +environment variable `GNUTARGET'; if that is null or not defined, then +choose the first entry in the target list. Passing in the string +"default" or setting the environment variable to "default" will cause +the first entry in the target list to be returned, and +"target_defaulted" will be set in the BFD. This causes +`bfd_check_format' to loop over all the targets to find the one that +matches the file being read. + +2.13.1.3 `bfd_target_list' +.......................... + +*Synopsis* + const char ** bfd_target_list (void); + *Description* +Return a freshly malloced NULL-terminated vector of the names of all +the valid BFD targets. Do not modify the names. + +2.13.1.4 `bfd_seach_for_target' +............................... + +*Synopsis* + const bfd_target *bfd_search_for_target + (int (*search_func) (const bfd_target *, void *), + void *); + *Description* +Return a pointer to the first transfer vector in the list of transfer +vectors maintained by BFD that produces a non-zero result when passed +to the function SEARCH_FUNC. The parameter DATA is passed, unexamined, +to the search function. + + +File: bfd.info, Node: Architectures, Next: Opening and Closing, Prev: Targets, Up: BFD front end + +2.14 Architectures +================== + +BFD keeps one atom in a BFD describing the architecture of the data +attached to the BFD: a pointer to a `bfd_arch_info_type'. + + Pointers to structures can be requested independently of a BFD so +that an architecture's information can be interrogated without access +to an open BFD. + + The architecture information is provided by each architecture +package. The set of default architectures is selected by the macro +`SELECT_ARCHITECTURES'. This is normally set up in the +`config/TARGET.mt' file of your choice. If the name is not defined, +then all the architectures supported are included. + + When BFD starts up, all the architectures are called with an +initialize method. It is up to the architecture back end to insert as +many items into the list of architectures as it wants to; generally +this would be one for each machine and one for the default case (an +item with a machine field of 0). + + BFD's idea of an architecture is implemented in `archures.c'. + +2.14.1 bfd_architecture +----------------------- + +*Description* +This enum gives the object file's CPU architecture, in a global +sense--i.e., what processor family does it belong to? Another field +indicates which processor within the family is in use. The machine +gives a number which distinguishes different versions of the +architecture, containing, for example, 2 and 3 for Intel i960 KA and +i960 KB, and 68020 and 68030 for Motorola 68020 and 68030. + enum bfd_architecture + { + bfd_arch_unknown, /* File arch not known. */ + bfd_arch_obscure, /* Arch known, not one of these. */ + bfd_arch_m68k, /* Motorola 68xxx */ + #define bfd_mach_m68000 1 + #define bfd_mach_m68008 2 + #define bfd_mach_m68010 3 + #define bfd_mach_m68020 4 + #define bfd_mach_m68030 5 + #define bfd_mach_m68040 6 + #define bfd_mach_m68060 7 + #define bfd_mach_cpu32 8 + #define bfd_mach_mcf5200 9 + #define bfd_mach_mcf5206e 10 + #define bfd_mach_mcf5307 11 + #define bfd_mach_mcf5407 12 + #define bfd_mach_mcf528x 13 + #define bfd_mach_mcfv4e 14 + #define bfd_mach_mcf521x 15 + #define bfd_mach_mcf5249 16 + #define bfd_mach_mcf547x 17 + #define bfd_mach_mcf548x 18 + bfd_arch_vax, /* DEC Vax */ + bfd_arch_i960, /* Intel 960 */ + /* The order of the following is important. + lower number indicates a machine type that + only accepts a subset of the instructions + available to machines with higher numbers. + The exception is the "ca", which is + incompatible with all other machines except + "core". */ + + #define bfd_mach_i960_core 1 + #define bfd_mach_i960_ka_sa 2 + #define bfd_mach_i960_kb_sb 3 + #define bfd_mach_i960_mc 4 + #define bfd_mach_i960_xa 5 + #define bfd_mach_i960_ca 6 + #define bfd_mach_i960_jx 7 + #define bfd_mach_i960_hx 8 + + bfd_arch_or32, /* OpenRISC 32 */ + + bfd_arch_a29k, /* AMD 29000 */ + bfd_arch_sparc, /* SPARC */ + #define bfd_mach_sparc 1 + /* The difference between v8plus and v9 is that v9 is a true 64 bit env. */ + #define bfd_mach_sparc_sparclet 2 + #define bfd_mach_sparc_sparclite 3 + #define bfd_mach_sparc_v8plus 4 + #define bfd_mach_sparc_v8plusa 5 /* with ultrasparc add'ns. */ + #define bfd_mach_sparc_sparclite_le 6 + #define bfd_mach_sparc_v9 7 + #define bfd_mach_sparc_v9a 8 /* with ultrasparc add'ns. */ + #define bfd_mach_sparc_v8plusb 9 /* with cheetah add'ns. */ + #define bfd_mach_sparc_v9b 10 /* with cheetah add'ns. */ + /* Nonzero if MACH has the v9 instruction set. */ + #define bfd_mach_sparc_v9_p(mach) \ + ((mach) >= bfd_mach_sparc_v8plus && (mach) <= bfd_mach_sparc_v9b \ + && (mach) != bfd_mach_sparc_sparclite_le) + /* Nonzero if MACH is a 64 bit sparc architecture. */ + #define bfd_mach_sparc_64bit_p(mach) \ + ((mach) >= bfd_mach_sparc_v9 && (mach) != bfd_mach_sparc_v8plusb) + bfd_arch_mips, /* MIPS Rxxxx */ + #define bfd_mach_mips3000 3000 + #define bfd_mach_mips3900 3900 + #define bfd_mach_mips4000 4000 + #define bfd_mach_mips4010 4010 + #define bfd_mach_mips4100 4100 + #define bfd_mach_mips4111 4111 + #define bfd_mach_mips4120 4120 + #define bfd_mach_mips4300 4300 + #define bfd_mach_mips4400 4400 + #define bfd_mach_mips4600 4600 + #define bfd_mach_mips4650 4650 + #define bfd_mach_mips5000 5000 + #define bfd_mach_mips5400 5400 + #define bfd_mach_mips5500 5500 + #define bfd_mach_mips6000 6000 + #define bfd_mach_mips7000 7000 + #define bfd_mach_mips8000 8000 + #define bfd_mach_mips9000 9000 + #define bfd_mach_mips10000 10000 + #define bfd_mach_mips12000 12000 + #define bfd_mach_mips16 16 + #define bfd_mach_mips5 5 + #define bfd_mach_mips_sb1 12310201 /* octal 'SB', 01 */ + #define bfd_mach_mipsisa32 32 + #define bfd_mach_mipsisa32r2 33 + #define bfd_mach_mipsisa64 64 + #define bfd_mach_mipsisa64r2 65 + bfd_arch_i386, /* Intel 386 */ + #define bfd_mach_i386_i386 1 + #define bfd_mach_i386_i8086 2 + #define bfd_mach_i386_i386_intel_syntax 3 + #define bfd_mach_x86_64 64 + #define bfd_mach_x86_64_intel_syntax 65 + bfd_arch_we32k, /* AT&T WE32xxx */ + bfd_arch_tahoe, /* CCI/Harris Tahoe */ + bfd_arch_i860, /* Intel 860 */ + bfd_arch_i370, /* IBM 360/370 Mainframes */ + bfd_arch_romp, /* IBM ROMP PC/RT */ + bfd_arch_alliant, /* Alliant */ + bfd_arch_convex, /* Convex */ + bfd_arch_m88k, /* Motorola 88xxx */ + bfd_arch_m98k, /* Motorola 98xxx */ + bfd_arch_pyramid, /* Pyramid Technology */ + bfd_arch_h8300, /* Renesas H8/300 (formerly Hitachi H8/300) */ + #define bfd_mach_h8300 1 + #define bfd_mach_h8300h 2 + #define bfd_mach_h8300s 3 + #define bfd_mach_h8300hn 4 + #define bfd_mach_h8300sn 5 + #define bfd_mach_h8300sx 6 + #define bfd_mach_h8300sxn 7 + bfd_arch_pdp11, /* DEC PDP-11 */ + bfd_arch_powerpc, /* PowerPC */ + #define bfd_mach_ppc 32 + #define bfd_mach_ppc64 64 + #define bfd_mach_ppc_403 403 + #define bfd_mach_ppc_403gc 4030 + #define bfd_mach_ppc_505 505 + #define bfd_mach_ppc_601 601 + #define bfd_mach_ppc_602 602 + #define bfd_mach_ppc_603 603 + #define bfd_mach_ppc_ec603e 6031 + #define bfd_mach_ppc_604 604 + #define bfd_mach_ppc_620 620 + #define bfd_mach_ppc_630 630 + #define bfd_mach_ppc_750 750 + #define bfd_mach_ppc_860 860 + #define bfd_mach_ppc_a35 35 + #define bfd_mach_ppc_rs64ii 642 + #define bfd_mach_ppc_rs64iii 643 + #define bfd_mach_ppc_7400 7400 + #define bfd_mach_ppc_e500 500 + bfd_arch_rs6000, /* IBM RS/6000 */ + #define bfd_mach_rs6k 6000 + #define bfd_mach_rs6k_rs1 6001 + #define bfd_mach_rs6k_rsc 6003 + #define bfd_mach_rs6k_rs2 6002 + bfd_arch_hppa, /* HP PA RISC */ + #define bfd_mach_hppa10 10 + #define bfd_mach_hppa11 11 + #define bfd_mach_hppa20 20 + #define bfd_mach_hppa20w 25 + bfd_arch_d10v, /* Mitsubishi D10V */ + #define bfd_mach_d10v 1 + #define bfd_mach_d10v_ts2 2 + #define bfd_mach_d10v_ts3 3 + bfd_arch_d30v, /* Mitsubishi D30V */ + bfd_arch_dlx, /* DLX */ + bfd_arch_m68hc11, /* Motorola 68HC11 */ + bfd_arch_m68hc12, /* Motorola 68HC12 */ + #define bfd_mach_m6812_default 0 + #define bfd_mach_m6812 1 + #define bfd_mach_m6812s 2 + bfd_arch_z8k, /* Zilog Z8000 */ + #define bfd_mach_z8001 1 + #define bfd_mach_z8002 2 + bfd_arch_h8500, /* Renesas H8/500 (formerly Hitachi H8/500) */ + bfd_arch_sh, /* Renesas / SuperH SH (formerly Hitachi SH) */ + #define bfd_mach_sh 1 + #define bfd_mach_sh2 0x20 + #define bfd_mach_sh_dsp 0x2d + #define bfd_mach_sh2a 0x2a + #define bfd_mach_sh2a_nofpu 0x2b + #define bfd_mach_sh2a_nofpu_or_sh4_nommu_nofpu 0x2a1 + #define bfd_mach_sh2a_nofpu_or_sh3_nommu 0x2a2 + #define bfd_mach_sh2a_or_sh4 0x2a3 + #define bfd_mach_sh2a_or_sh3e 0x2a4 + #define bfd_mach_sh2e 0x2e + #define bfd_mach_sh3 0x30 + #define bfd_mach_sh3_nommu 0x31 + #define bfd_mach_sh3_dsp 0x3d + #define bfd_mach_sh3e 0x3e + #define bfd_mach_sh4 0x40 + #define bfd_mach_sh4_nofpu 0x41 + #define bfd_mach_sh4_nommu_nofpu 0x42 + #define bfd_mach_sh4a 0x4a + #define bfd_mach_sh4a_nofpu 0x4b + #define bfd_mach_sh4al_dsp 0x4d + #define bfd_mach_sh5 0x50 + bfd_arch_alpha, /* Dec Alpha */ + #define bfd_mach_alpha_ev4 0x10 + #define bfd_mach_alpha_ev5 0x20 + #define bfd_mach_alpha_ev6 0x30 + bfd_arch_arm, /* Advanced Risc Machines ARM. */ + #define bfd_mach_arm_unknown 0 + #define bfd_mach_arm_2 1 + #define bfd_mach_arm_2a 2 + #define bfd_mach_arm_3 3 + #define bfd_mach_arm_3M 4 + #define bfd_mach_arm_4 5 + #define bfd_mach_arm_4T 6 + #define bfd_mach_arm_5 7 + #define bfd_mach_arm_5T 8 + #define bfd_mach_arm_5TE 9 + #define bfd_mach_arm_XScale 10 + #define bfd_mach_arm_ep9312 11 + #define bfd_mach_arm_iWMMXt 12 + bfd_arch_ns32k, /* National Semiconductors ns32000 */ + bfd_arch_w65, /* WDC 65816 */ + bfd_arch_tic30, /* Texas Instruments TMS320C30 */ + bfd_arch_tic4x, /* Texas Instruments TMS320C3X/4X */ + #define bfd_mach_tic3x 30 + #define bfd_mach_tic4x 40 + bfd_arch_tic54x, /* Texas Instruments TMS320C54X */ + bfd_arch_tic80, /* TI TMS320c80 (MVP) */ + bfd_arch_v850, /* NEC V850 */ + #define bfd_mach_v850 1 + #define bfd_mach_v850e 'E' + #define bfd_mach_v850e1 '1' + bfd_arch_arc, /* ARC Cores */ + #define bfd_mach_arc_5 5 + #define bfd_mach_arc_6 6 + #define bfd_mach_arc_7 7 + #define bfd_mach_arc_8 8 + bfd_arch_m32r, /* Renesas M32R (formerly Mitsubishi M32R/D) */ + #define bfd_mach_m32r 1 /* For backwards compatibility. */ + #define bfd_mach_m32rx 'x' + #define bfd_mach_m32r2 '2' + bfd_arch_mn10200, /* Matsushita MN10200 */ + bfd_arch_mn10300, /* Matsushita MN10300 */ + #define bfd_mach_mn10300 300 + #define bfd_mach_am33 330 + #define bfd_mach_am33_2 332 + bfd_arch_fr30, + #define bfd_mach_fr30 0x46523330 + bfd_arch_frv, + #define bfd_mach_frv 1 + #define bfd_mach_frvsimple 2 + #define bfd_mach_fr300 300 + #define bfd_mach_fr400 400 + #define bfd_mach_fr450 450 + #define bfd_mach_frvtomcat 499 /* fr500 prototype */ + #define bfd_mach_fr500 500 + #define bfd_mach_fr550 550 + bfd_arch_mcore, + bfd_arch_ia64, /* HP/Intel ia64 */ + #define bfd_mach_ia64_elf64 64 + #define bfd_mach_ia64_elf32 32 + bfd_arch_ip2k, /* Ubicom IP2K microcontrollers. */ + #define bfd_mach_ip2022 1 + #define bfd_mach_ip2022ext 2 + bfd_arch_iq2000, /* Vitesse IQ2000. */ + #define bfd_mach_iq2000 1 + #define bfd_mach_iq10 2 + bfd_arch_pj, + bfd_arch_avr, /* Atmel AVR microcontrollers. */ + #define bfd_mach_avr1 1 + #define bfd_mach_avr2 2 + #define bfd_mach_avr3 3 + #define bfd_mach_avr4 4 + #define bfd_mach_avr5 5 + bfd_arch_cr16c, /* National Semiconductor CompactRISC. */ + #define bfd_mach_cr16c 1 + bfd_arch_crx, /* National Semiconductor CRX. */ + #define bfd_mach_crx 1 + bfd_arch_cris, /* Axis CRIS */ + #define bfd_mach_cris_v0_v10 255 + #define bfd_mach_cris_v32 32 + #define bfd_mach_cris_v10_v32 1032 + bfd_arch_s390, /* IBM s390 */ + #define bfd_mach_s390_31 31 + #define bfd_mach_s390_64 64 + bfd_arch_openrisc, /* OpenRISC */ + bfd_arch_mmix, /* Donald Knuth's educational processor. */ + bfd_arch_xstormy16, + #define bfd_mach_xstormy16 1 + bfd_arch_msp430, /* Texas Instruments MSP430 architecture. */ + #define bfd_mach_msp11 11 + #define bfd_mach_msp110 110 + #define bfd_mach_msp12 12 + #define bfd_mach_msp13 13 + #define bfd_mach_msp14 14 + #define bfd_mach_msp15 15 + #define bfd_mach_msp16 16 + #define bfd_mach_msp31 31 + #define bfd_mach_msp32 32 + #define bfd_mach_msp33 33 + #define bfd_mach_msp41 41 + #define bfd_mach_msp42 42 + #define bfd_mach_msp43 43 + #define bfd_mach_msp44 44 + bfd_arch_xtensa, /* Tensilica's Xtensa cores. */ + #define bfd_mach_xtensa 1 + bfd_arch_maxq, /* Dallas MAXQ 10/20 */ + #define bfd_mach_maxq10 10 + #define bfd_mach_maxq20 20 + bfd_arch_last + }; + +2.14.2 bfd_arch_info +-------------------- + +*Description* +This structure contains information on architectures for use within BFD. + + typedef struct bfd_arch_info + { + int bits_per_word; + int bits_per_address; + int bits_per_byte; + enum bfd_architecture arch; + unsigned long mach; + const char *arch_name; + const char *printable_name; + unsigned int section_align_power; + /* TRUE if this is the default machine for the architecture. + The default arch should be the first entry for an arch so that + all the entries for that arch can be accessed via `next'. */ + bfd_boolean the_default; + const struct bfd_arch_info * (*compatible) + (const struct bfd_arch_info *a, const struct bfd_arch_info *b); + + bfd_boolean (*scan) (const struct bfd_arch_info *, const char *); + + const struct bfd_arch_info *next; + } + bfd_arch_info_type; + +2.14.2.1 `bfd_printable_name' +............................. + +*Synopsis* + const char *bfd_printable_name (bfd *abfd); + *Description* +Return a printable string representing the architecture and machine +from the pointer to the architecture info structure. + +2.14.2.2 `bfd_scan_arch' +........................ + +*Synopsis* + const bfd_arch_info_type *bfd_scan_arch (const char *string); + *Description* +Figure out if BFD supports any cpu which could be described with the +name STRING. Return a pointer to an `arch_info' structure if a machine +is found, otherwise NULL. + +2.14.2.3 `bfd_arch_list' +........................ + +*Synopsis* + const char **bfd_arch_list (void); + *Description* +Return a freshly malloced NULL-terminated vector of the names of all +the valid BFD architectures. Do not modify the names. + +2.14.2.4 `bfd_arch_get_compatible' +.................................. + +*Synopsis* + const bfd_arch_info_type *bfd_arch_get_compatible + (const bfd *abfd, const bfd *bbfd, bfd_boolean accept_unknowns); + *Description* +Determine whether two BFDs' architectures and machine types are +compatible. Calculates the lowest common denominator between the two +architectures and machine types implied by the BFDs and returns a +pointer to an `arch_info' structure describing the compatible machine. + +2.14.2.5 `bfd_default_arch_struct' +.................................. + +*Description* +The `bfd_default_arch_struct' is an item of `bfd_arch_info_type' which +has been initialized to a fairly generic state. A BFD starts life by +pointing to this structure, until the correct back end has determined +the real architecture of the file. + extern const bfd_arch_info_type bfd_default_arch_struct; + +2.14.2.6 `bfd_set_arch_info' +............................ + +*Synopsis* + void bfd_set_arch_info (bfd *abfd, const bfd_arch_info_type *arg); + *Description* +Set the architecture info of ABFD to ARG. + +2.14.2.7 `bfd_default_set_arch_mach' +.................................... + +*Synopsis* + bfd_boolean bfd_default_set_arch_mach + (bfd *abfd, enum bfd_architecture arch, unsigned long mach); + *Description* +Set the architecture and machine type in BFD ABFD to ARCH and MACH. +Find the correct pointer to a structure and insert it into the +`arch_info' pointer. + +2.14.2.8 `bfd_get_arch' +....................... + +*Synopsis* + enum bfd_architecture bfd_get_arch (bfd *abfd); + *Description* +Return the enumerated type which describes the BFD ABFD's architecture. + +2.14.2.9 `bfd_get_mach' +....................... + +*Synopsis* + unsigned long bfd_get_mach (bfd *abfd); + *Description* +Return the long type which describes the BFD ABFD's machine. + +2.14.2.10 `bfd_arch_bits_per_byte' +.................................. + +*Synopsis* + unsigned int bfd_arch_bits_per_byte (bfd *abfd); + *Description* +Return the number of bits in one of the BFD ABFD's architecture's bytes. + +2.14.2.11 `bfd_arch_bits_per_address' +..................................... + +*Synopsis* + unsigned int bfd_arch_bits_per_address (bfd *abfd); + *Description* +Return the number of bits in one of the BFD ABFD's architecture's +addresses. + +2.14.2.12 `bfd_default_compatible' +.................................. + +*Synopsis* + const bfd_arch_info_type *bfd_default_compatible + (const bfd_arch_info_type *a, const bfd_arch_info_type *b); + *Description* +The default function for testing for compatibility. + +2.14.2.13 `bfd_default_scan' +............................ + +*Synopsis* + bfd_boolean bfd_default_scan + (const struct bfd_arch_info *info, const char *string); + *Description* +The default function for working out whether this is an architecture +hit and a machine hit. + +2.14.2.14 `bfd_get_arch_info' +............................. + +*Synopsis* + const bfd_arch_info_type *bfd_get_arch_info (bfd *abfd); + *Description* +Return the architecture info struct in ABFD. + +2.14.2.15 `bfd_lookup_arch' +........................... + +*Synopsis* + const bfd_arch_info_type *bfd_lookup_arch + (enum bfd_architecture arch, unsigned long machine); + *Description* +Look for the architecture info structure which matches the arguments +ARCH and MACHINE. A machine of 0 matches the machine/architecture +structure which marks itself as the default. + +2.14.2.16 `bfd_printable_arch_mach' +................................... + +*Synopsis* + const char *bfd_printable_arch_mach + (enum bfd_architecture arch, unsigned long machine); + *Description* +Return a printable string representing the architecture and machine +type. + + This routine is depreciated. + +2.14.2.17 `bfd_octets_per_byte' +............................... + +*Synopsis* + unsigned int bfd_octets_per_byte (bfd *abfd); + *Description* +Return the number of octets (8-bit quantities) per target byte (minimum +addressable unit). In most cases, this will be one, but some DSP +targets have 16, 32, or even 48 bits per byte. + +2.14.2.18 `bfd_arch_mach_octets_per_byte' +......................................... + +*Synopsis* + unsigned int bfd_arch_mach_octets_per_byte + (enum bfd_architecture arch, unsigned long machine); + *Description* +See bfd_octets_per_byte. + + This routine is provided for those cases where a bfd * is not +available + + +File: bfd.info, Node: Opening and Closing, Next: Internal, Prev: Architectures, Up: BFD front end + +2.15 Opening and closing BFDs +============================= + +2.15.0.1 `bfd_openr' +.................... + +*Synopsis* + bfd *bfd_openr (const char *filename, const char *target); + *Description* +Open the file FILENAME (using `fopen') with the target TARGET. Return +a pointer to the created BFD. + + Calls `bfd_find_target', so TARGET is interpreted as by that +function. + + If `NULL' is returned then an error has occured. Possible errors +are `bfd_error_no_memory', `bfd_error_invalid_target' or `system_call' +error. + +2.15.0.2 `bfd_fdopenr' +...................... + +*Synopsis* + bfd *bfd_fdopenr (const char *filename, const char *target, int fd); + *Description* +`bfd_fdopenr' is to `bfd_fopenr' much like `fdopen' is to `fopen'. It +opens a BFD on a file already described by the FD supplied. + + When the file is later `bfd_close'd, the file descriptor will be +closed. If the caller desires that this file descriptor be cached by +BFD (opened as needed, closed as needed to free descriptors for other +opens), with the supplied FD used as an initial file descriptor (but +subject to closure at any time), call bfd_set_cacheable(bfd, 1) on the +returned BFD. The default is to assume no caching; the file descriptor +will remain open until `bfd_close', and will not be affected by BFD +operations on other files. + + Possible errors are `bfd_error_no_memory', +`bfd_error_invalid_target' and `bfd_error_system_call'. + +2.15.0.3 `bfd_openstreamr' +.......................... + +*Synopsis* + bfd *bfd_openstreamr (const char *, const char *, void *); + *Description* +Open a BFD for read access on an existing stdio stream. When the BFD +is passed to `bfd_close', the stream will be closed. + +2.15.0.4 `bfd_openr_iovec' +.......................... + +*Synopsis* + bfd *bfd_openr_iovec (const char *filename, const char *target, + void *(*open) (struct bfd *nbfd, + void *open_closure), + void *open_closure, + file_ptr (*pread) (struct bfd *nbfd, + void *stream, + void *buf, + file_ptr nbytes, + file_ptr offset), + int (*close) (struct bfd *nbfd, + void *stream)); + *Description* +Create and return a BFD backed by a read-only STREAM. The STREAM is +created using OPEN, accessed using PREAD and destroyed using CLOSE. + + Calls `bfd_find_target', so TARGET is interpreted as by that +function. + + Calls OPEN (which can call `bfd_zalloc' and `bfd_get_filename') to +obtain the read-only stream backing the BFD. OPEN either succeeds +returning the non-`NULL' STREAM, or fails returning `NULL' (setting +`bfd_error'). + + Calls PREAD to request NBYTES of data from STREAM starting at OFFSET +(e.g., via a call to `bfd_read'). PREAD either succeeds returning the +number of bytes read (which can be less than NBYTES when end-of-file), +or fails returning -1 (setting `bfd_error'). + + Calls CLOSE when the BFD is later closed using `bfd_close'. CLOSE +either succeeds returning 0, or fails returning -1 (setting +`bfd_error'). + + If `bfd_openr_iovec' returns `NULL' then an error has occurred. +Possible errors are `bfd_error_no_memory', `bfd_error_invalid_target' +and `bfd_error_system_call'. + +2.15.0.5 `bfd_openw' +.................... + +*Synopsis* + bfd *bfd_openw (const char *filename, const char *target); + *Description* +Create a BFD, associated with file FILENAME, using the file format +TARGET, and return a pointer to it. + + Possible errors are `bfd_error_system_call', `bfd_error_no_memory', +`bfd_error_invalid_target'. + +2.15.0.6 `bfd_close' +.................... + +*Synopsis* + bfd_boolean bfd_close (bfd *abfd); + *Description* +Close a BFD. If the BFD was open for writing, then pending operations +are completed and the file written out and closed. If the created file +is executable, then `chmod' is called to mark it as such. + + All memory attached to the BFD is released. + + The file descriptor associated with the BFD is closed (even if it +was passed in to BFD by `bfd_fdopenr'). + + *Returns* +`TRUE' is returned if all is ok, otherwise `FALSE'. + +2.15.0.7 `bfd_close_all_done' +............................. + +*Synopsis* + bfd_boolean bfd_close_all_done (bfd *); + *Description* +Close a BFD. Differs from `bfd_close' since it does not complete any +pending operations. This routine would be used if the application had +just used BFD for swapping and didn't want to use any of the writing +code. + + If the created file is executable, then `chmod' is called to mark it +as such. + + All memory attached to the BFD is released. + + *Returns* +`TRUE' is returned if all is ok, otherwise `FALSE'. + +2.15.0.8 `bfd_create' +..................... + +*Synopsis* + bfd *bfd_create (const char *filename, bfd *templ); + *Description* +Create a new BFD in the manner of `bfd_openw', but without opening a +file. The new BFD takes the target from the target used by TEMPLATE. +The format is always set to `bfd_object'. + +2.15.0.9 `bfd_make_writable' +............................ + +*Synopsis* + bfd_boolean bfd_make_writable (bfd *abfd); + *Description* +Takes a BFD as created by `bfd_create' and converts it into one like as +returned by `bfd_openw'. It does this by converting the BFD to +BFD_IN_MEMORY. It's assumed that you will call `bfd_make_readable' on +this bfd later. + + *Returns* +`TRUE' is returned if all is ok, otherwise `FALSE'. + +2.15.0.10 `bfd_make_readable' +............................. + +*Synopsis* + bfd_boolean bfd_make_readable (bfd *abfd); + *Description* +Takes a BFD as created by `bfd_create' and `bfd_make_writable' and +converts it into one like as returned by `bfd_openr'. It does this by +writing the contents out to the memory buffer, then reversing the +direction. + + *Returns* +`TRUE' is returned if all is ok, otherwise `FALSE'. + +2.15.0.11 `bfd_alloc' +..................... + +*Synopsis* + void *bfd_alloc (bfd *abfd, bfd_size_type wanted); + *Description* +Allocate a block of WANTED bytes of memory attached to `abfd' and +return a pointer to it. + +2.15.0.12 `bfd_zalloc' +...................... + +*Synopsis* + void *bfd_zalloc (bfd *abfd, bfd_size_type wanted); + *Description* +Allocate a block of WANTED bytes of zeroed memory attached to `abfd' +and return a pointer to it. + +2.15.0.13 `bfd_calc_gnu_debuglink_crc32' +........................................ + +*Synopsis* + unsigned long bfd_calc_gnu_debuglink_crc32 + (unsigned long crc, const unsigned char *buf, bfd_size_type len); + *Description* +Computes a CRC value as used in the .gnu_debuglink section. Advances +the previously computed CRC value by computing and adding in the crc32 +for LEN bytes of BUF. + + *Returns* +Return the updated CRC32 value. + +2.15.0.14 `get_debug_link_info' +............................... + +*Synopsis* + char *get_debug_link_info (bfd *abfd, unsigned long *crc32_out); + *Description* +fetch the filename and CRC32 value for any separate debuginfo +associated with ABFD. Return NULL if no such info found, otherwise +return filename and update CRC32_OUT. + +2.15.0.15 `separate_debug_file_exists' +...................................... + +*Synopsis* + bfd_boolean separate_debug_file_exists + (char *name, unsigned long crc32); + *Description* +Checks to see if NAME is a file and if its contents match CRC32. + +2.15.0.16 `find_separate_debug_file' +.................................... + +*Synopsis* + char *find_separate_debug_file (bfd *abfd); + *Description* +Searches ABFD for a reference to separate debugging information, scans +various locations in the filesystem, including the file tree rooted at +DEBUG_FILE_DIRECTORY, and returns a filename of such debugging +information if the file is found and has matching CRC32. Returns NULL +if no reference to debugging file exists, or file cannot be found. + +2.15.0.17 `bfd_follow_gnu_debuglink' +.................................... + +*Synopsis* + char *bfd_follow_gnu_debuglink (bfd *abfd, const char *dir); + *Description* +Takes a BFD and searches it for a .gnu_debuglink section. If this +section is found, it examines the section for the name and checksum of +a '.debug' file containing auxiliary debugging information. It then +searches the filesystem for this .debug file in some standard +locations, including the directory tree rooted at DIR, and if found +returns the full filename. + + If DIR is NULL, it will search a default path configured into libbfd +at build time. [XXX this feature is not currently implemented]. + + *Returns* +`NULL' on any errors or failure to locate the .debug file, otherwise a +pointer to a heap-allocated string containing the filename. The caller +is responsible for freeing this string. + +2.15.0.18 `bfd_create_gnu_debuglink_section' +............................................ + +*Synopsis* + struct bfd_section *bfd_create_gnu_debuglink_section + (bfd *abfd, const char *filename); + *Description* +Takes a BFD and adds a .gnu_debuglink section to it. The section is +sized to be big enough to contain a link to the specified FILENAME. + + *Returns* +A pointer to the new section is returned if all is ok. Otherwise +`NULL' is returned and bfd_error is set. + +2.15.0.19 `bfd_fill_in_gnu_debuglink_section' +............................................. + +*Synopsis* + bfd_boolean bfd_fill_in_gnu_debuglink_section + (bfd *abfd, struct bfd_section *sect, const char *filename); + *Description* +Takes a BFD and containing a .gnu_debuglink section SECT and fills in +the contents of the section to contain a link to the specified +FILENAME. The filename should be relative to the current directory. + + *Returns* +`TRUE' is returned if all is ok. Otherwise `FALSE' is returned and +bfd_error is set. + + +File: bfd.info, Node: Internal, Next: File Caching, Prev: Opening and Closing, Up: BFD front end + +2.16 Internal functions +======================= + +*Description* +These routines are used within BFD. They are not intended for export, +but are documented here for completeness. + +2.16.0.1 `bfd_write_bigendian_4byte_int' +........................................ + +*Synopsis* + bfd_boolean bfd_write_bigendian_4byte_int (bfd *, unsigned int); + *Description* +Write a 4 byte integer I to the output BFD ABFD, in big endian order +regardless of what else is going on. This is useful in archives. + +2.16.0.2 `bfd_put_size' +....................... + +2.16.0.3 `bfd_get_size' +....................... + +*Description* +These macros as used for reading and writing raw data in sections; each +access (except for bytes) is vectored through the target format of the +BFD and mangled accordingly. The mangling performs any necessary endian +translations and removes alignment restrictions. Note that types +accepted and returned by these macros are identical so they can be +swapped around in macros--for example, `libaout.h' defines `GET_WORD' +to either `bfd_get_32' or `bfd_get_64'. + + In the put routines, VAL must be a `bfd_vma'. If we are on a system +without prototypes, the caller is responsible for making sure that is +true, with a cast if necessary. We don't cast them in the macro +definitions because that would prevent `lint' or `gcc -Wall' from +detecting sins such as passing a pointer. To detect calling these with +less than a `bfd_vma', use `gcc -Wconversion' on a host with 64 bit +`bfd_vma''s. + + /* Byte swapping macros for user section data. */ + + #define bfd_put_8(abfd, val, ptr) \ + ((void) (*((unsigned char *) (ptr)) = (val) & 0xff)) + #define bfd_put_signed_8 \ + bfd_put_8 + #define bfd_get_8(abfd, ptr) \ + (*(unsigned char *) (ptr) & 0xff) + #define bfd_get_signed_8(abfd, ptr) \ + (((*(unsigned char *) (ptr) & 0xff) ^ 0x80) - 0x80) + + #define bfd_put_16(abfd, val, ptr) \ + BFD_SEND (abfd, bfd_putx16, ((val),(ptr))) + #define bfd_put_signed_16 \ + bfd_put_16 + #define bfd_get_16(abfd, ptr) \ + BFD_SEND (abfd, bfd_getx16, (ptr)) + #define bfd_get_signed_16(abfd, ptr) \ + BFD_SEND (abfd, bfd_getx_signed_16, (ptr)) + + #define bfd_put_32(abfd, val, ptr) \ + BFD_SEND (abfd, bfd_putx32, ((val),(ptr))) + #define bfd_put_signed_32 \ + bfd_put_32 + #define bfd_get_32(abfd, ptr) \ + BFD_SEND (abfd, bfd_getx32, (ptr)) + #define bfd_get_signed_32(abfd, ptr) \ + BFD_SEND (abfd, bfd_getx_signed_32, (ptr)) + + #define bfd_put_64(abfd, val, ptr) \ + BFD_SEND (abfd, bfd_putx64, ((val), (ptr))) + #define bfd_put_signed_64 \ + bfd_put_64 + #define bfd_get_64(abfd, ptr) \ + BFD_SEND (abfd, bfd_getx64, (ptr)) + #define bfd_get_signed_64(abfd, ptr) \ + BFD_SEND (abfd, bfd_getx_signed_64, (ptr)) + + #define bfd_get(bits, abfd, ptr) \ + ((bits) == 8 ? (bfd_vma) bfd_get_8 (abfd, ptr) \ + : (bits) == 16 ? bfd_get_16 (abfd, ptr) \ + : (bits) == 32 ? bfd_get_32 (abfd, ptr) \ + : (bits) == 64 ? bfd_get_64 (abfd, ptr) \ + : (abort (), (bfd_vma) - 1)) + + #define bfd_put(bits, abfd, val, ptr) \ + ((bits) == 8 ? bfd_put_8 (abfd, val, ptr) \ + : (bits) == 16 ? bfd_put_16 (abfd, val, ptr) \ + : (bits) == 32 ? bfd_put_32 (abfd, val, ptr) \ + : (bits) == 64 ? bfd_put_64 (abfd, val, ptr) \ + : (abort (), (void) 0)) + +2.16.0.4 `bfd_h_put_size' +......................... + +*Description* +These macros have the same function as their `bfd_get_x' brethren, +except that they are used for removing information for the header +records of object files. Believe it or not, some object files keep +their header records in big endian order and their data in little +endian order. + + /* Byte swapping macros for file header data. */ + + #define bfd_h_put_8(abfd, val, ptr) \ + bfd_put_8 (abfd, val, ptr) + #define bfd_h_put_signed_8(abfd, val, ptr) \ + bfd_put_8 (abfd, val, ptr) + #define bfd_h_get_8(abfd, ptr) \ + bfd_get_8 (abfd, ptr) + #define bfd_h_get_signed_8(abfd, ptr) \ + bfd_get_signed_8 (abfd, ptr) + + #define bfd_h_put_16(abfd, val, ptr) \ + BFD_SEND (abfd, bfd_h_putx16, (val, ptr)) + #define bfd_h_put_signed_16 \ + bfd_h_put_16 + #define bfd_h_get_16(abfd, ptr) \ + BFD_SEND (abfd, bfd_h_getx16, (ptr)) + #define bfd_h_get_signed_16(abfd, ptr) \ + BFD_SEND (abfd, bfd_h_getx_signed_16, (ptr)) + + #define bfd_h_put_32(abfd, val, ptr) \ + BFD_SEND (abfd, bfd_h_putx32, (val, ptr)) + #define bfd_h_put_signed_32 \ + bfd_h_put_32 + #define bfd_h_get_32(abfd, ptr) \ + BFD_SEND (abfd, bfd_h_getx32, (ptr)) + #define bfd_h_get_signed_32(abfd, ptr) \ + BFD_SEND (abfd, bfd_h_getx_signed_32, (ptr)) + + #define bfd_h_put_64(abfd, val, ptr) \ + BFD_SEND (abfd, bfd_h_putx64, (val, ptr)) + #define bfd_h_put_signed_64 \ + bfd_h_put_64 + #define bfd_h_get_64(abfd, ptr) \ + BFD_SEND (abfd, bfd_h_getx64, (ptr)) + #define bfd_h_get_signed_64(abfd, ptr) \ + BFD_SEND (abfd, bfd_h_getx_signed_64, (ptr)) + + /* Aliases for the above, which should eventually go away. */ + + #define H_PUT_64 bfd_h_put_64 + #define H_PUT_32 bfd_h_put_32 + #define H_PUT_16 bfd_h_put_16 + #define H_PUT_8 bfd_h_put_8 + #define H_PUT_S64 bfd_h_put_signed_64 + #define H_PUT_S32 bfd_h_put_signed_32 + #define H_PUT_S16 bfd_h_put_signed_16 + #define H_PUT_S8 bfd_h_put_signed_8 + #define H_GET_64 bfd_h_get_64 + #define H_GET_32 bfd_h_get_32 + #define H_GET_16 bfd_h_get_16 + #define H_GET_8 bfd_h_get_8 + #define H_GET_S64 bfd_h_get_signed_64 + #define H_GET_S32 bfd_h_get_signed_32 + #define H_GET_S16 bfd_h_get_signed_16 + #define H_GET_S8 bfd_h_get_signed_8 + +2.16.0.5 `bfd_log2' +................... + +*Synopsis* + unsigned int bfd_log2 (bfd_vma x); + *Description* +Return the log base 2 of the value supplied, rounded up. E.g., an X of +1025 returns 11. A X of 0 returns 0. + + +File: bfd.info, Node: File Caching, Next: Linker Functions, Prev: Internal, Up: BFD front end + +2.17 File caching +================= + +The file caching mechanism is embedded within BFD and allows the +application to open as many BFDs as it wants without regard to the +underlying operating system's file descriptor limit (often as low as 20 +open files). The module in `cache.c' maintains a least recently used +list of `BFD_CACHE_MAX_OPEN' files, and exports the name +`bfd_cache_lookup', which runs around and makes sure that the required +BFD is open. If not, then it chooses a file to close, closes it and +opens the one wanted, returning its file handle. + +2.17.0.1 `BFD_CACHE_MAX_OPEN macro' +................................... + +*Description* +The maximum number of files which the cache will keep open at one time. + #define BFD_CACHE_MAX_OPEN 10 + +2.17.0.2 `bfd_last_cache' +......................... + +*Synopsis* + extern bfd *bfd_last_cache; + *Description* +Zero, or a pointer to the topmost BFD on the chain. This is used by +the `bfd_cache_lookup' macro in `libbfd.h' to determine when it can +avoid a function call. + +2.17.0.3 `bfd_cache_lookup' +........................... + +*Description* +Check to see if the required BFD is the same as the last one looked up. +If so, then it can use the stream in the BFD with impunity, since it +can't have changed since the last lookup; otherwise, it has to perform +the complicated lookup function. + #define bfd_cache_lookup(x) \ + ((x) == bfd_last_cache ? \ + (FILE *) (bfd_last_cache->iostream): \ + bfd_cache_lookup_worker (x)) + +2.17.0.4 `bfd_cache_init' +......................... + +*Synopsis* + bfd_boolean bfd_cache_init (bfd *abfd); + *Description* +Add a newly opened BFD to the cache. + +2.17.0.5 `bfd_cache_close' +.......................... + +*Synopsis* + bfd_boolean bfd_cache_close (bfd *abfd); + *Description* +Remove the BFD ABFD from the cache. If the attached file is open, then +close it too. + + *Returns* +`FALSE' is returned if closing the file fails, `TRUE' is returned if +all is well. + +2.17.0.6 `bfd_cache_close_all' +.............................. + +*Synopsis* + bfd_boolean bfd_cache_close_all (void); + *Description* +Remove all BFDs from the cache. If the attached file is open, then +close it too. + + *Returns* +`FALSE' is returned if closing one of the file fails, `TRUE' is +returned if all is well. + +2.17.0.7 `bfd_open_file' +........................ + +*Synopsis* + FILE* bfd_open_file (bfd *abfd); + *Description* +Call the OS to open a file for ABFD. Return the `FILE *' (possibly +`NULL') that results from this operation. Set up the BFD so that +future accesses know the file is open. If the `FILE *' returned is +`NULL', then it won't have been put in the cache, so it won't have to +be removed from it. + +2.17.0.8 `bfd_cache_lookup_worker' +.................................. + +*Synopsis* + FILE *bfd_cache_lookup_worker (bfd *abfd); + *Description* +Called when the macro `bfd_cache_lookup' fails to find a quick answer. +Find a file descriptor for ABFD. If necessary, it open it. If there +are already more than `BFD_CACHE_MAX_OPEN' files open, it tries to +close one first, to avoid running out of file descriptors. It will +abort rather than returning NULL if it is unable to (re)open the ABFD. + + +File: bfd.info, Node: Linker Functions, Next: Hash Tables, Prev: File Caching, Up: BFD front end + +2.18 Linker Functions +===================== + +The linker uses three special entry points in the BFD target vector. +It is not necessary to write special routines for these entry points +when creating a new BFD back end, since generic versions are provided. +However, writing them can speed up linking and make it use +significantly less runtime memory. + + The first routine creates a hash table used by the other routines. +The second routine adds the symbols from an object file to the hash +table. The third routine takes all the object files and links them +together to create the output file. These routines are designed so +that the linker proper does not need to know anything about the symbols +in the object files that it is linking. The linker merely arranges the +sections as directed by the linker script and lets BFD handle the +details of symbols and relocs. + + The second routine and third routines are passed a pointer to a +`struct bfd_link_info' structure (defined in `bfdlink.h') which holds +information relevant to the link, including the linker hash table +(which was created by the first routine) and a set of callback +functions to the linker proper. + + The generic linker routines are in `linker.c', and use the header +file `genlink.h'. As of this writing, the only back ends which have +implemented versions of these routines are a.out (in `aoutx.h') and +ECOFF (in `ecoff.c'). The a.out routines are used as examples +throughout this section. + +* Menu: + +* Creating a Linker Hash Table:: +* Adding Symbols to the Hash Table:: +* Performing the Final Link:: + + +File: bfd.info, Node: Creating a Linker Hash Table, Next: Adding Symbols to the Hash Table, Prev: Linker Functions, Up: Linker Functions + +2.18.1 Creating a linker hash table +----------------------------------- + +The linker routines must create a hash table, which must be derived +from `struct bfd_link_hash_table' described in `bfdlink.c'. *Note Hash +Tables::, for information on how to create a derived hash table. This +entry point is called using the target vector of the linker output file. + + The `_bfd_link_hash_table_create' entry point must allocate and +initialize an instance of the desired hash table. If the back end does +not require any additional information to be stored with the entries in +the hash table, the entry point may simply create a `struct +bfd_link_hash_table'. Most likely, however, some additional +information will be needed. + + For example, with each entry in the hash table the a.out linker +keeps the index the symbol has in the final output file (this index +number is used so that when doing a relocatable link the symbol index +used in the output file can be quickly filled in when copying over a +reloc). The a.out linker code defines the required structures and +functions for a hash table derived from `struct bfd_link_hash_table'. +The a.out linker hash table is created by the function +`NAME(aout,link_hash_table_create)'; it simply allocates space for the +hash table, initializes it, and returns a pointer to it. + + When writing the linker routines for a new back end, you will +generally not know exactly which fields will be required until you have +finished. You should simply create a new hash table which defines no +additional fields, and then simply add fields as they become necessary. + + +File: bfd.info, Node: Adding Symbols to the Hash Table, Next: Performing the Final Link, Prev: Creating a Linker Hash Table, Up: Linker Functions + +2.18.2 Adding symbols to the hash table +--------------------------------------- + +The linker proper will call the `_bfd_link_add_symbols' entry point for +each object file or archive which is to be linked (typically these are +the files named on the command line, but some may also come from the +linker script). The entry point is responsible for examining the file. +For an object file, BFD must add any relevant symbol information to +the hash table. For an archive, BFD must determine which elements of +the archive should be used and adding them to the link. + + The a.out version of this entry point is +`NAME(aout,link_add_symbols)'. + +* Menu: + +* Differing file formats:: +* Adding symbols from an object file:: +* Adding symbols from an archive:: + + +File: bfd.info, Node: Differing file formats, Next: Adding symbols from an object file, Prev: Adding Symbols to the Hash Table, Up: Adding Symbols to the Hash Table + +2.18.2.1 Differing file formats +............................... + +Normally all the files involved in a link will be of the same format, +but it is also possible to link together different format object files, +and the back end must support that. The `_bfd_link_add_symbols' entry +point is called via the target vector of the file to be added. This +has an important consequence: the function may not assume that the hash +table is the type created by the corresponding +`_bfd_link_hash_table_create' vector. All the `_bfd_link_add_symbols' +function can assume about the hash table is that it is derived from +`struct bfd_link_hash_table'. + + Sometimes the `_bfd_link_add_symbols' function must store some +information in the hash table entry to be used by the `_bfd_final_link' +function. In such a case the `creator' field of the hash table must be +checked to make sure that the hash table was created by an object file +of the same format. + + The `_bfd_final_link' routine must be prepared to handle a hash +entry without any extra information added by the +`_bfd_link_add_symbols' function. A hash entry without extra +information will also occur when the linker script directs the linker +to create a symbol. Note that, regardless of how a hash table entry is +added, all the fields will be initialized to some sort of null value by +the hash table entry initialization function. + + See `ecoff_link_add_externals' for an example of how to check the +`creator' field before saving information (in this case, the ECOFF +external symbol debugging information) in a hash table entry. + + +File: bfd.info, Node: Adding symbols from an object file, Next: Adding symbols from an archive, Prev: Differing file formats, Up: Adding Symbols to the Hash Table + +2.18.2.2 Adding symbols from an object file +........................................... + +When the `_bfd_link_add_symbols' routine is passed an object file, it +must add all externally visible symbols in that object file to the hash +table. The actual work of adding the symbol to the hash table is +normally handled by the function `_bfd_generic_link_add_one_symbol'. +The `_bfd_link_add_symbols' routine is responsible for reading all the +symbols from the object file and passing the correct information to +`_bfd_generic_link_add_one_symbol'. + + The `_bfd_link_add_symbols' routine should not use +`bfd_canonicalize_symtab' to read the symbols. The point of providing +this routine is to avoid the overhead of converting the symbols into +generic `asymbol' structures. + + `_bfd_generic_link_add_one_symbol' handles the details of combining +common symbols, warning about multiple definitions, and so forth. It +takes arguments which describe the symbol to add, notably symbol flags, +a section, and an offset. The symbol flags include such things as +`BSF_WEAK' or `BSF_INDIRECT'. The section is a section in the object +file, or something like `bfd_und_section_ptr' for an undefined symbol +or `bfd_com_section_ptr' for a common symbol. + + If the `_bfd_final_link' routine is also going to need to read the +symbol information, the `_bfd_link_add_symbols' routine should save it +somewhere attached to the object file BFD. However, the information +should only be saved if the `keep_memory' field of the `info' argument +is TRUE, so that the `-no-keep-memory' linker switch is effective. + + The a.out function which adds symbols from an object file is +`aout_link_add_object_symbols', and most of the interesting work is in +`aout_link_add_symbols'. The latter saves pointers to the hash tables +entries created by `_bfd_generic_link_add_one_symbol' indexed by symbol +number, so that the `_bfd_final_link' routine does not have to call the +hash table lookup routine to locate the entry. + + +File: bfd.info, Node: Adding symbols from an archive, Prev: Adding symbols from an object file, Up: Adding Symbols to the Hash Table + +2.18.2.3 Adding symbols from an archive +....................................... + +When the `_bfd_link_add_symbols' routine is passed an archive, it must +look through the symbols defined by the archive and decide which +elements of the archive should be included in the link. For each such +element it must call the `add_archive_element' linker callback, and it +must add the symbols from the object file to the linker hash table. + + In most cases the work of looking through the symbols in the archive +should be done by the `_bfd_generic_link_add_archive_symbols' function. +This function builds a hash table from the archive symbol table and +looks through the list of undefined symbols to see which elements +should be included. `_bfd_generic_link_add_archive_symbols' is passed +a function to call to make the final decision about adding an archive +element to the link and to do the actual work of adding the symbols to +the linker hash table. + + The function passed to `_bfd_generic_link_add_archive_symbols' must +read the symbols of the archive element and decide whether the archive +element should be included in the link. If the element is to be +included, the `add_archive_element' linker callback routine must be +called with the element as an argument, and the elements symbols must +be added to the linker hash table just as though the element had itself +been passed to the `_bfd_link_add_symbols' function. + + When the a.out `_bfd_link_add_symbols' function receives an archive, +it calls `_bfd_generic_link_add_archive_symbols' passing +`aout_link_check_archive_element' as the function argument. +`aout_link_check_archive_element' calls `aout_link_check_ar_symbols'. +If the latter decides to add the element (an element is only added if +it provides a real, non-common, definition for a previously undefined +or common symbol) it calls the `add_archive_element' callback and then +`aout_link_check_archive_element' calls `aout_link_add_symbols' to +actually add the symbols to the linker hash table. + + The ECOFF back end is unusual in that it does not normally call +`_bfd_generic_link_add_archive_symbols', because ECOFF archives already +contain a hash table of symbols. The ECOFF back end searches the +archive itself to avoid the overhead of creating a new hash table. + + +File: bfd.info, Node: Performing the Final Link, Prev: Adding Symbols to the Hash Table, Up: Linker Functions + +2.18.3 Performing the final link +-------------------------------- + +When all the input files have been processed, the linker calls the +`_bfd_final_link' entry point of the output BFD. This routine is +responsible for producing the final output file, which has several +aspects. It must relocate the contents of the input sections and copy +the data into the output sections. It must build an output symbol +table including any local symbols from the input files and the global +symbols from the hash table. When producing relocatable output, it must +modify the input relocs and write them into the output file. There may +also be object format dependent work to be done. + + The linker will also call the `write_object_contents' entry point +when the BFD is closed. The two entry points must work together in +order to produce the correct output file. + + The details of how this works are inevitably dependent upon the +specific object file format. The a.out `_bfd_final_link' routine is +`NAME(aout,final_link)'. + +* Menu: + +* Information provided by the linker:: +* Relocating the section contents:: +* Writing the symbol table:: + + +File: bfd.info, Node: Information provided by the linker, Next: Relocating the section contents, Prev: Performing the Final Link, Up: Performing the Final Link + +2.18.3.1 Information provided by the linker +........................................... + +Before the linker calls the `_bfd_final_link' entry point, it sets up +some data structures for the function to use. + + The `input_bfds' field of the `bfd_link_info' structure will point +to a list of all the input files included in the link. These files are +linked through the `link_next' field of the `bfd' structure. + + Each section in the output file will have a list of `link_order' +structures attached to the `link_order_head' field (the `link_order' +structure is defined in `bfdlink.h'). These structures describe how to +create the contents of the output section in terms of the contents of +various input sections, fill constants, and, eventually, other types of +information. They also describe relocs that must be created by the BFD +backend, but do not correspond to any input file; this is used to +support -Ur, which builds constructors while generating a relocatable +object file. + + +File: bfd.info, Node: Relocating the section contents, Next: Writing the symbol table, Prev: Information provided by the linker, Up: Performing the Final Link + +2.18.3.2 Relocating the section contents +........................................ + +The `_bfd_final_link' function should look through the `link_order' +structures attached to each section of the output file. Each +`link_order' structure should either be handled specially, or it should +be passed to the function `_bfd_default_link_order' which will do the +right thing (`_bfd_default_link_order' is defined in `linker.c'). + + For efficiency, a `link_order' of type `bfd_indirect_link_order' +whose associated section belongs to a BFD of the same format as the +output BFD must be handled specially. This type of `link_order' +describes part of an output section in terms of a section belonging to +one of the input files. The `_bfd_final_link' function should read the +contents of the section and any associated relocs, apply the relocs to +the section contents, and write out the modified section contents. If +performing a relocatable link, the relocs themselves must also be +modified and written out. + + The functions `_bfd_relocate_contents' and +`_bfd_final_link_relocate' provide some general support for performing +the actual relocations, notably overflow checking. Their arguments +include information about the symbol the relocation is against and a +`reloc_howto_type' argument which describes the relocation to perform. +These functions are defined in `reloc.c'. + + The a.out function which handles reading, relocating, and writing +section contents is `aout_link_input_section'. The actual relocation +is done in `aout_link_input_section_std' and +`aout_link_input_section_ext'. + + +File: bfd.info, Node: Writing the symbol table, Prev: Relocating the section contents, Up: Performing the Final Link + +2.18.3.3 Writing the symbol table +................................. + +The `_bfd_final_link' function must gather all the symbols in the input +files and write them out. It must also write out all the symbols in +the global hash table. This must be controlled by the `strip' and +`discard' fields of the `bfd_link_info' structure. + + The local symbols of the input files will not have been entered into +the linker hash table. The `_bfd_final_link' routine must consider +each input file and include the symbols in the output file. It may be +convenient to do this when looking through the `link_order' structures, +or it may be done by stepping through the `input_bfds' list. + + The `_bfd_final_link' routine must also traverse the global hash +table to gather all the externally visible symbols. It is possible +that most of the externally visible symbols may be written out when +considering the symbols of each input file, but it is still necessary +to traverse the hash table since the linker script may have defined +some symbols that are not in any of the input files. + + The `strip' field of the `bfd_link_info' structure controls which +symbols are written out. The possible values are listed in +`bfdlink.h'. If the value is `strip_some', then the `keep_hash' field +of the `bfd_link_info' structure is a hash table of symbols to keep; +each symbol should be looked up in this hash table, and only symbols +which are present should be included in the output file. + + If the `strip' field of the `bfd_link_info' structure permits local +symbols to be written out, the `discard' field is used to further +controls which local symbols are included in the output file. If the +value is `discard_l', then all local symbols which begin with a certain +prefix are discarded; this is controlled by the +`bfd_is_local_label_name' entry point. + + The a.out backend handles symbols by calling +`aout_link_write_symbols' on each input BFD and then traversing the +global hash table with the function `aout_link_write_other_symbol'. It +builds a string table while writing out the symbols, which is written +to the output file at the end of `NAME(aout,final_link)'. + +2.18.3.4 `bfd_link_split_section' +................................. + +*Synopsis* + bfd_boolean bfd_link_split_section (bfd *abfd, asection *sec); + *Description* +Return nonzero if SEC should be split during a reloceatable or final +link. + #define bfd_link_split_section(abfd, sec) \ + BFD_SEND (abfd, _bfd_link_split_section, (abfd, sec)) + +2.18.3.5 `bfd_section_already_linked' +..................................... + +*Synopsis* + void bfd_section_already_linked (bfd *abfd, asection *sec); + *Description* +Check if SEC has been already linked during a reloceatable or final +link. + #define bfd_section_already_linked(abfd, sec) \ + BFD_SEND (abfd, _section_already_linked, (abfd, sec)) + + +File: bfd.info, Node: Hash Tables, Prev: Linker Functions, Up: BFD front end + +2.19 Hash Tables +================ + +BFD provides a simple set of hash table functions. Routines are +provided to initialize a hash table, to free a hash table, to look up a +string in a hash table and optionally create an entry for it, and to +traverse a hash table. There is currently no routine to delete an +string from a hash table. + + The basic hash table does not permit any data to be stored with a +string. However, a hash table is designed to present a base class from +which other types of hash tables may be derived. These derived types +may store additional information with the string. Hash tables were +implemented in this way, rather than simply providing a data pointer in +a hash table entry, because they were designed for use by the linker +back ends. The linker may create thousands of hash table entries, and +the overhead of allocating private data and storing and following +pointers becomes noticeable. + + The basic hash table code is in `hash.c'. + +* Menu: + +* Creating and Freeing a Hash Table:: +* Looking Up or Entering a String:: +* Traversing a Hash Table:: +* Deriving a New Hash Table Type:: + + +File: bfd.info, Node: Creating and Freeing a Hash Table, Next: Looking Up or Entering a String, Prev: Hash Tables, Up: Hash Tables + +2.19.1 Creating and freeing a hash table +---------------------------------------- + +To create a hash table, create an instance of a `struct bfd_hash_table' +(defined in `bfd.h') and call `bfd_hash_table_init' (if you know +approximately how many entries you will need, the function +`bfd_hash_table_init_n', which takes a SIZE argument, may be used). +`bfd_hash_table_init' returns `FALSE' if some sort of error occurs. + + The function `bfd_hash_table_init' take as an argument a function to +use to create new entries. For a basic hash table, use the function +`bfd_hash_newfunc'. *Note Deriving a New Hash Table Type::, for why +you would want to use a different value for this argument. + + `bfd_hash_table_init' will create an objalloc which will be used to +allocate new entries. You may allocate memory on this objalloc using +`bfd_hash_allocate'. + + Use `bfd_hash_table_free' to free up all the memory that has been +allocated for a hash table. This will not free up the `struct +bfd_hash_table' itself, which you must provide. + + Use `bfd_hash_set_default_size' to set the default size of hash +table to use. + + +File: bfd.info, Node: Looking Up or Entering a String, Next: Traversing a Hash Table, Prev: Creating and Freeing a Hash Table, Up: Hash Tables + +2.19.2 Looking up or entering a string +-------------------------------------- + +The function `bfd_hash_lookup' is used both to look up a string in the +hash table and to create a new entry. + + If the CREATE argument is `FALSE', `bfd_hash_lookup' will look up a +string. If the string is found, it will returns a pointer to a `struct +bfd_hash_entry'. If the string is not found in the table +`bfd_hash_lookup' will return `NULL'. You should not modify any of the +fields in the returns `struct bfd_hash_entry'. + + If the CREATE argument is `TRUE', the string will be entered into +the hash table if it is not already there. Either way a pointer to a +`struct bfd_hash_entry' will be returned, either to the existing +structure or to a newly created one. In this case, a `NULL' return +means that an error occurred. + + If the CREATE argument is `TRUE', and a new entry is created, the +COPY argument is used to decide whether to copy the string onto the +hash table objalloc or not. If COPY is passed as `FALSE', you must be +careful not to deallocate or modify the string as long as the hash table +exists. + + +File: bfd.info, Node: Traversing a Hash Table, Next: Deriving a New Hash Table Type, Prev: Looking Up or Entering a String, Up: Hash Tables + +2.19.3 Traversing a hash table +------------------------------ + +The function `bfd_hash_traverse' may be used to traverse a hash table, +calling a function on each element. The traversal is done in a random +order. + + `bfd_hash_traverse' takes as arguments a function and a generic +`void *' pointer. The function is called with a hash table entry (a +`struct bfd_hash_entry *') and the generic pointer passed to +`bfd_hash_traverse'. The function must return a `boolean' value, which +indicates whether to continue traversing the hash table. If the +function returns `FALSE', `bfd_hash_traverse' will stop the traversal +and return immediately. + + +File: bfd.info, Node: Deriving a New Hash Table Type, Prev: Traversing a Hash Table, Up: Hash Tables + +2.19.4 Deriving a new hash table type +------------------------------------- + +Many uses of hash tables want to store additional information which +each entry in the hash table. Some also find it convenient to store +additional information with the hash table itself. This may be done +using a derived hash table. + + Since C is not an object oriented language, creating a derived hash +table requires sticking together some boilerplate routines with a few +differences specific to the type of hash table you want to create. + + An example of a derived hash table is the linker hash table. The +structures for this are defined in `bfdlink.h'. The functions are in +`linker.c'. + + You may also derive a hash table from an already derived hash table. +For example, the a.out linker backend code uses a hash table derived +from the linker hash table. + +* Menu: + +* Define the Derived Structures:: +* Write the Derived Creation Routine:: +* Write Other Derived Routines:: + + +File: bfd.info, Node: Define the Derived Structures, Next: Write the Derived Creation Routine, Prev: Deriving a New Hash Table Type, Up: Deriving a New Hash Table Type + +2.19.4.1 Define the derived structures +...................................... + +You must define a structure for an entry in the hash table, and a +structure for the hash table itself. + + The first field in the structure for an entry in the hash table must +be of the type used for an entry in the hash table you are deriving +from. If you are deriving from a basic hash table this is `struct +bfd_hash_entry', which is defined in `bfd.h'. The first field in the +structure for the hash table itself must be of the type of the hash +table you are deriving from itself. If you are deriving from a basic +hash table, this is `struct bfd_hash_table'. + + For example, the linker hash table defines `struct +bfd_link_hash_entry' (in `bfdlink.h'). The first field, `root', is of +type `struct bfd_hash_entry'. Similarly, the first field in `struct +bfd_link_hash_table', `table', is of type `struct bfd_hash_table'. + + +File: bfd.info, Node: Write the Derived Creation Routine, Next: Write Other Derived Routines, Prev: Define the Derived Structures, Up: Deriving a New Hash Table Type + +2.19.4.2 Write the derived creation routine +........................................... + +You must write a routine which will create and initialize an entry in +the hash table. This routine is passed as the function argument to +`bfd_hash_table_init'. + + In order to permit other hash tables to be derived from the hash +table you are creating, this routine must be written in a standard way. + + The first argument to the creation routine is a pointer to a hash +table entry. This may be `NULL', in which case the routine should +allocate the right amount of space. Otherwise the space has already +been allocated by a hash table type derived from this one. + + After allocating space, the creation routine must call the creation +routine of the hash table type it is derived from, passing in a pointer +to the space it just allocated. This will initialize any fields used +by the base hash table. + + Finally the creation routine must initialize any local fields for +the new hash table type. + + Here is a boilerplate example of a creation routine. FUNCTION_NAME +is the name of the routine. ENTRY_TYPE is the type of an entry in the +hash table you are creating. BASE_NEWFUNC is the name of the creation +routine of the hash table type your hash table is derived from. + + struct bfd_hash_entry * + FUNCTION_NAME (entry, table, string) + struct bfd_hash_entry *entry; + struct bfd_hash_table *table; + const char *string; + { + struct ENTRY_TYPE *ret = (ENTRY_TYPE *) entry; + + /* Allocate the structure if it has not already been allocated by a + derived class. */ + if (ret == (ENTRY_TYPE *) NULL) + { + ret = ((ENTRY_TYPE *) + bfd_hash_allocate (table, sizeof (ENTRY_TYPE))); + if (ret == (ENTRY_TYPE *) NULL) + return NULL; + } + + /* Call the allocation method of the base class. */ + ret = ((ENTRY_TYPE *) + BASE_NEWFUNC ((struct bfd_hash_entry *) ret, table, string)); + + /* Initialize the local fields here. */ + + return (struct bfd_hash_entry *) ret; + } + *Description* +The creation routine for the linker hash table, which is in `linker.c', +looks just like this example. FUNCTION_NAME is +`_bfd_link_hash_newfunc'. ENTRY_TYPE is `struct bfd_link_hash_entry'. +BASE_NEWFUNC is `bfd_hash_newfunc', the creation routine for a basic +hash table. + + `_bfd_link_hash_newfunc' also initializes the local fields in a +linker hash table entry: `type', `written' and `next'. + + +File: bfd.info, Node: Write Other Derived Routines, Prev: Write the Derived Creation Routine, Up: Deriving a New Hash Table Type + +2.19.4.3 Write other derived routines +..................................... + +You will want to write other routines for your new hash table, as well. + + You will want an initialization routine which calls the +initialization routine of the hash table you are deriving from and +initializes any other local fields. For the linker hash table, this is +`_bfd_link_hash_table_init' in `linker.c'. + + You will want a lookup routine which calls the lookup routine of the +hash table you are deriving from and casts the result. The linker hash +table uses `bfd_link_hash_lookup' in `linker.c' (this actually takes an +additional argument which it uses to decide how to return the looked up +value). + + You may want a traversal routine. This should just call the +traversal routine of the hash table you are deriving from with +appropriate casts. The linker hash table uses `bfd_link_hash_traverse' +in `linker.c'. + + These routines may simply be defined as macros. For example, the +a.out backend linker hash table, which is derived from the linker hash +table, uses macros for the lookup and traversal routines. These are +`aout_link_hash_lookup' and `aout_link_hash_traverse' in aoutx.h. + + +File: bfd.info, Node: BFD back ends, Next: GNU Free Documentation License, Prev: BFD front end, Up: Top + +3 BFD back ends +*************** + +* Menu: + +* What to Put Where:: +* aout :: a.out backends +* coff :: coff backends +* elf :: elf backends +* mmo :: mmo backend + + +File: bfd.info, Node: What to Put Where, Next: aout, Prev: BFD back ends, Up: BFD back ends + + All of BFD lives in one directory. + + +File: bfd.info, Node: aout, Next: coff, Prev: What to Put Where, Up: BFD back ends + +3.1 a.out backends +================== + +*Description* +BFD supports a number of different flavours of a.out format, though the +major differences are only the sizes of the structures on disk, and the +shape of the relocation information. + + The support is split into a basic support file `aoutx.h' and other +files which derive functions from the base. One derivation file is +`aoutf1.h' (for a.out flavour 1), and adds to the basic a.out functions +support for sun3, sun4, 386 and 29k a.out files, to create a target +jump vector for a specific target. + + This information is further split out into more specific files for +each machine, including `sunos.c' for sun3 and sun4, `newsos3.c' for +the Sony NEWS, and `demo64.c' for a demonstration of a 64 bit a.out +format. + + The base file `aoutx.h' defines general mechanisms for reading and +writing records to and from disk and various other methods which BFD +requires. It is included by `aout32.c' and `aout64.c' to form the names +`aout_32_swap_exec_header_in', `aout_64_swap_exec_header_in', etc. + + As an example, this is what goes on to make the back end for a sun4, +from `aout32.c': + + #define ARCH_SIZE 32 + #include "aoutx.h" + + Which exports names: + + ... + aout_32_canonicalize_reloc + aout_32_find_nearest_line + aout_32_get_lineno + aout_32_get_reloc_upper_bound + ... + + from `sunos.c': + + #define TARGET_NAME "a.out-sunos-big" + #define VECNAME sunos_big_vec + #include "aoutf1.h" + + requires all the names from `aout32.c', and produces the jump vector + + sunos_big_vec + + The file `host-aout.c' is a special case. It is for a large set of +hosts that use "more or less standard" a.out files, and for which +cross-debugging is not interesting. It uses the standard 32-bit a.out +support routines, but determines the file offsets and addresses of the +text, data, and BSS sections, the machine architecture and machine +type, and the entry point address, in a host-dependent manner. Once +these values have been determined, generic code is used to handle the +object file. + + When porting it to run on a new system, you must supply: + + HOST_PAGE_SIZE + HOST_SEGMENT_SIZE + HOST_MACHINE_ARCH (optional) + HOST_MACHINE_MACHINE (optional) + HOST_TEXT_START_ADDR + HOST_STACK_END_ADDR + + in the file `../include/sys/h-XXX.h' (for your host). These values, +plus the structures and macros defined in `a.out.h' on your host +system, will produce a BFD target that will access ordinary a.out files +on your host. To configure a new machine to use `host-aout.c', specify: + + TDEFAULTS = -DDEFAULT_VECTOR=host_aout_big_vec + TDEPFILES= host-aout.o trad-core.o + + in the `config/XXX.mt' file, and modify `configure.in' to use the +`XXX.mt' file (by setting "`bfd_target=XXX'") when your configuration +is selected. + +3.1.1 Relocations +----------------- + +*Description* +The file `aoutx.h' provides for both the _standard_ and _extended_ +forms of a.out relocation records. + + The standard records contain only an address, a symbol index, and a +type field. The extended records (used on 29ks and sparcs) also have a +full integer for an addend. + +3.1.2 Internal entry points +--------------------------- + +*Description* +`aoutx.h' exports several routines for accessing the contents of an +a.out file, which are gathered and exported in turn by various format +specific files (eg sunos.c). + +3.1.2.1 `aout_SIZE_swap_exec_header_in' +....................................... + +*Synopsis* + void aout_SIZE_swap_exec_header_in, + (bfd *abfd, + struct external_exec *raw_bytes, + struct internal_exec *execp); + *Description* +Swap the information in an executable header RAW_BYTES taken from a raw +byte stream memory image into the internal exec header structure EXECP. + +3.1.2.2 `aout_SIZE_swap_exec_header_out' +........................................ + +*Synopsis* + void aout_SIZE_swap_exec_header_out + (bfd *abfd, + struct internal_exec *execp, + struct external_exec *raw_bytes); + *Description* +Swap the information in an internal exec header structure EXECP into +the buffer RAW_BYTES ready for writing to disk. + +3.1.2.3 `aout_SIZE_some_aout_object_p' +...................................... + +*Synopsis* + const bfd_target *aout_SIZE_some_aout_object_p + (bfd *abfd, + const bfd_target *(*callback_to_real_object_p) ()); + *Description* +Some a.out variant thinks that the file open in ABFD checking is an +a.out file. Do some more checking, and set up for access if it really +is. Call back to the calling environment's "finish up" function just +before returning, to handle any last-minute setup. + +3.1.2.4 `aout_SIZE_mkobject' +............................ + +*Synopsis* + bfd_boolean aout_SIZE_mkobject, (bfd *abfd); + *Description* +Initialize BFD ABFD for use with a.out files. + +3.1.2.5 `aout_SIZE_machine_type' +................................ + +*Synopsis* + enum machine_type aout_SIZE_machine_type + (enum bfd_architecture arch, + unsigned long machine)); + *Description* +Keep track of machine architecture and machine type for a.out's. Return +the `machine_type' for a particular architecture and machine, or +`M_UNKNOWN' if that exact architecture and machine can't be represented +in a.out format. + + If the architecture is understood, machine type 0 (default) is +always understood. + +3.1.2.6 `aout_SIZE_set_arch_mach' +................................. + +*Synopsis* + bfd_boolean aout_SIZE_set_arch_mach, + (bfd *, + enum bfd_architecture arch, + unsigned long machine)); + *Description* +Set the architecture and the machine of the BFD ABFD to the values ARCH +and MACHINE. Verify that ABFD's format can support the architecture +required. + +3.1.2.7 `aout_SIZE_new_section_hook' +.................................... + +*Synopsis* + bfd_boolean aout_SIZE_new_section_hook, + (bfd *abfd, + asection *newsect)); + *Description* +Called by the BFD in response to a `bfd_make_section' request. + + +File: bfd.info, Node: coff, Next: elf, Prev: aout, Up: BFD back ends + +3.2 coff backends +================= + +BFD supports a number of different flavours of coff format. The major +differences between formats are the sizes and alignments of fields in +structures on disk, and the occasional extra field. + + Coff in all its varieties is implemented with a few common files and +a number of implementation specific files. For example, The 88k bcs +coff format is implemented in the file `coff-m88k.c'. This file +`#include's `coff/m88k.h' which defines the external structure of the +coff format for the 88k, and `coff/internal.h' which defines the +internal structure. `coff-m88k.c' also defines the relocations used by +the 88k format *Note Relocations::. + + The Intel i960 processor version of coff is implemented in +`coff-i960.c'. This file has the same structure as `coff-m88k.c', +except that it includes `coff/i960.h' rather than `coff-m88k.h'. + +3.2.1 Porting to a new version of coff +-------------------------------------- + +The recommended method is to select from the existing implementations +the version of coff which is most like the one you want to use. For +example, we'll say that i386 coff is the one you select, and that your +coff flavour is called foo. Copy `i386coff.c' to `foocoff.c', copy +`../include/coff/i386.h' to `../include/coff/foo.h', and add the lines +to `targets.c' and `Makefile.in' so that your new back end is used. +Alter the shapes of the structures in `../include/coff/foo.h' so that +they match what you need. You will probably also have to add `#ifdef's +to the code in `coff/internal.h' and `coffcode.h' if your version of +coff is too wild. + + You can verify that your new BFD backend works quite simply by +building `objdump' from the `binutils' directory, and making sure that +its version of what's going on and your host system's idea (assuming it +has the pretty standard coff dump utility, usually called `att-dump' or +just `dump') are the same. Then clean up your code, and send what +you've done to Cygnus. Then your stuff will be in the next release, and +you won't have to keep integrating it. + +3.2.2 How the coff backend works +-------------------------------- + +3.2.2.1 File layout +................... + +The Coff backend is split into generic routines that are applicable to +any Coff target and routines that are specific to a particular target. +The target-specific routines are further split into ones which are +basically the same for all Coff targets except that they use the +external symbol format or use different values for certain constants. + + The generic routines are in `coffgen.c'. These routines work for +any Coff target. They use some hooks into the target specific code; +the hooks are in a `bfd_coff_backend_data' structure, one of which +exists for each target. + + The essentially similar target-specific routines are in +`coffcode.h'. This header file includes executable C code. The +various Coff targets first include the appropriate Coff header file, +make any special defines that are needed, and then include `coffcode.h'. + + Some of the Coff targets then also have additional routines in the +target source file itself. + + For example, `coff-i960.c' includes `coff/internal.h' and +`coff/i960.h'. It then defines a few constants, such as `I960', and +includes `coffcode.h'. Since the i960 has complex relocation types, +`coff-i960.c' also includes some code to manipulate the i960 relocs. +This code is not in `coffcode.h' because it would not be used by any +other target. + +3.2.2.2 Bit twiddling +..................... + +Each flavour of coff supported in BFD has its own header file +describing the external layout of the structures. There is also an +internal description of the coff layout, in `coff/internal.h'. A major +function of the coff backend is swapping the bytes and twiddling the +bits to translate the external form of the structures into the normal +internal form. This is all performed in the `bfd_swap'_thing_direction +routines. Some elements are different sizes between different versions +of coff; it is the duty of the coff version specific include file to +override the definitions of various packing routines in `coffcode.h'. +E.g., the size of line number entry in coff is sometimes 16 bits, and +sometimes 32 bits. `#define'ing `PUT_LNSZ_LNNO' and `GET_LNSZ_LNNO' +will select the correct one. No doubt, some day someone will find a +version of coff which has a varying field size not catered to at the +moment. To port BFD, that person will have to add more `#defines'. +Three of the bit twiddling routines are exported to `gdb'; +`coff_swap_aux_in', `coff_swap_sym_in' and `coff_swap_lineno_in'. `GDB' +reads the symbol table on its own, but uses BFD to fix things up. More +of the bit twiddlers are exported for `gas'; `coff_swap_aux_out', +`coff_swap_sym_out', `coff_swap_lineno_out', `coff_swap_reloc_out', +`coff_swap_filehdr_out', `coff_swap_aouthdr_out', +`coff_swap_scnhdr_out'. `Gas' currently keeps track of all the symbol +table and reloc drudgery itself, thereby saving the internal BFD +overhead, but uses BFD to swap things on the way out, making cross +ports much safer. Doing so also allows BFD (and thus the linker) to +use the same header files as `gas', which makes one avenue to disaster +disappear. + +3.2.2.3 Symbol reading +...................... + +The simple canonical form for symbols used by BFD is not rich enough to +keep all the information available in a coff symbol table. The back end +gets around this problem by keeping the original symbol table around, +"behind the scenes". + + When a symbol table is requested (through a call to +`bfd_canonicalize_symtab'), a request gets through to +`coff_get_normalized_symtab'. This reads the symbol table from the coff +file and swaps all the structures inside into the internal form. It +also fixes up all the pointers in the table (represented in the file by +offsets from the first symbol in the table) into physical pointers to +elements in the new internal table. This involves some work since the +meanings of fields change depending upon context: a field that is a +pointer to another structure in the symbol table at one moment may be +the size in bytes of a structure at the next. Another pass is made +over the table. All symbols which mark file names (`C_FILE' symbols) +are modified so that the internal string points to the value in the +auxent (the real filename) rather than the normal text associated with +the symbol (`".file"'). + + At this time the symbol names are moved around. Coff stores all +symbols less than nine characters long physically within the symbol +table; longer strings are kept at the end of the file in the string +table. This pass moves all strings into memory and replaces them with +pointers to the strings. + + The symbol table is massaged once again, this time to create the +canonical table used by the BFD application. Each symbol is inspected +in turn, and a decision made (using the `sclass' field) about the +various flags to set in the `asymbol'. *Note Symbols::. The generated +canonical table shares strings with the hidden internal symbol table. + + Any linenumbers are read from the coff file too, and attached to the +symbols which own the functions the linenumbers belong to. + +3.2.2.4 Symbol writing +...................... + +Writing a symbol to a coff file which didn't come from a coff file will +lose any debugging information. The `asymbol' structure remembers the +BFD from which the symbol was taken, and on output the back end makes +sure that the same destination target as source target is present. + + When the symbols have come from a coff file then all the debugging +information is preserved. + + Symbol tables are provided for writing to the back end in a vector +of pointers to pointers. This allows applications like the linker to +accumulate and output large symbol tables without having to do too much +byte copying. + + This function runs through the provided symbol table and patches +each symbol marked as a file place holder (`C_FILE') to point to the +next file place holder in the list. It also marks each `offset' field +in the list with the offset from the first symbol of the current symbol. + + Another function of this procedure is to turn the canonical value +form of BFD into the form used by coff. Internally, BFD expects symbol +values to be offsets from a section base; so a symbol physically at +0x120, but in a section starting at 0x100, would have the value 0x20. +Coff expects symbols to contain their final value, so symbols have +their values changed at this point to reflect their sum with their +owning section. This transformation uses the `output_section' field of +the `asymbol''s `asection' *Note Sections::. + + * `coff_mangle_symbols' + This routine runs though the provided symbol table and uses the +offsets generated by the previous pass and the pointers generated when +the symbol table was read in to create the structured hierarchy +required by coff. It changes each pointer to a symbol into the index +into the symbol table of the asymbol. + + * `coff_write_symbols' + This routine runs through the symbol table and patches up the +symbols from their internal form into the coff way, calls the bit +twiddlers, and writes out the table to the file. + +3.2.2.5 `coff_symbol_type' +.......................... + +*Description* +The hidden information for an `asymbol' is described in a +`combined_entry_type': + + + typedef struct coff_ptr_struct + { + /* Remembers the offset from the first symbol in the file for + this symbol. Generated by coff_renumber_symbols. */ + unsigned int offset; + + /* Should the value of this symbol be renumbered. Used for + XCOFF C_BSTAT symbols. Set by coff_slurp_symbol_table. */ + unsigned int fix_value : 1; + + /* Should the tag field of this symbol be renumbered. + Created by coff_pointerize_aux. */ + unsigned int fix_tag : 1; + + /* Should the endidx field of this symbol be renumbered. + Created by coff_pointerize_aux. */ + unsigned int fix_end : 1; + + /* Should the x_csect.x_scnlen field be renumbered. + Created by coff_pointerize_aux. */ + unsigned int fix_scnlen : 1; + + /* Fix up an XCOFF C_BINCL/C_EINCL symbol. The value is the + index into the line number entries. Set by coff_slurp_symbol_table. */ + unsigned int fix_line : 1; + + /* The container for the symbol structure as read and translated + from the file. */ + union + { + union internal_auxent auxent; + struct internal_syment syment; + } u; + } combined_entry_type; + + + /* Each canonical asymbol really looks like this: */ + + typedef struct coff_symbol_struct + { + /* The actual symbol which the rest of BFD works with */ + asymbol symbol; + + /* A pointer to the hidden information for this symbol */ + combined_entry_type *native; + + /* A pointer to the linenumber information for this symbol */ + struct lineno_cache_entry *lineno; + + /* Have the line numbers been relocated yet ? */ + bfd_boolean done_lineno; + } coff_symbol_type; + +3.2.2.6 `bfd_coff_backend_data' +............................... + + /* COFF symbol classifications. */ + + enum coff_symbol_classification + { + /* Global symbol. */ + COFF_SYMBOL_GLOBAL, + /* Common symbol. */ + COFF_SYMBOL_COMMON, + /* Undefined symbol. */ + COFF_SYMBOL_UNDEFINED, + /* Local symbol. */ + COFF_SYMBOL_LOCAL, + /* PE section symbol. */ + COFF_SYMBOL_PE_SECTION + }; +Special entry points for gdb to swap in coff symbol table parts: + typedef struct + { + void (*_bfd_coff_swap_aux_in) + PARAMS ((bfd *, PTR, int, int, int, int, PTR)); + + void (*_bfd_coff_swap_sym_in) + PARAMS ((bfd *, PTR, PTR)); + + void (*_bfd_coff_swap_lineno_in) + PARAMS ((bfd *, PTR, PTR)); + + unsigned int (*_bfd_coff_swap_aux_out) + PARAMS ((bfd *, PTR, int, int, int, int, PTR)); + + unsigned int (*_bfd_coff_swap_sym_out) + PARAMS ((bfd *, PTR, PTR)); + + unsigned int (*_bfd_coff_swap_lineno_out) + PARAMS ((bfd *, PTR, PTR)); + + unsigned int (*_bfd_coff_swap_reloc_out) + PARAMS ((bfd *, PTR, PTR)); + + unsigned int (*_bfd_coff_swap_filehdr_out) + PARAMS ((bfd *, PTR, PTR)); + + unsigned int (*_bfd_coff_swap_aouthdr_out) + PARAMS ((bfd *, PTR, PTR)); + + unsigned int (*_bfd_coff_swap_scnhdr_out) + PARAMS ((bfd *, PTR, PTR)); + + unsigned int _bfd_filhsz; + unsigned int _bfd_aoutsz; + unsigned int _bfd_scnhsz; + unsigned int _bfd_symesz; + unsigned int _bfd_auxesz; + unsigned int _bfd_relsz; + unsigned int _bfd_linesz; + unsigned int _bfd_filnmlen; + bfd_boolean _bfd_coff_long_filenames; + bfd_boolean _bfd_coff_long_section_names; + unsigned int _bfd_coff_default_section_alignment_power; + bfd_boolean _bfd_coff_force_symnames_in_strings; + unsigned int _bfd_coff_debug_string_prefix_length; + + void (*_bfd_coff_swap_filehdr_in) + PARAMS ((bfd *, PTR, PTR)); + + void (*_bfd_coff_swap_aouthdr_in) + PARAMS ((bfd *, PTR, PTR)); + + void (*_bfd_coff_swap_scnhdr_in) + PARAMS ((bfd *, PTR, PTR)); + + void (*_bfd_coff_swap_reloc_in) + PARAMS ((bfd *abfd, PTR, PTR)); + + bfd_boolean (*_bfd_coff_bad_format_hook) + PARAMS ((bfd *, PTR)); + + bfd_boolean (*_bfd_coff_set_arch_mach_hook) + PARAMS ((bfd *, PTR)); + + PTR (*_bfd_coff_mkobject_hook) + PARAMS ((bfd *, PTR, PTR)); + + bfd_boolean (*_bfd_styp_to_sec_flags_hook) + PARAMS ((bfd *, PTR, const char *, asection *, flagword *)); + + void (*_bfd_set_alignment_hook) + PARAMS ((bfd *, asection *, PTR)); + + bfd_boolean (*_bfd_coff_slurp_symbol_table) + PARAMS ((bfd *)); + + bfd_boolean (*_bfd_coff_symname_in_debug) + PARAMS ((bfd *, struct internal_syment *)); + + bfd_boolean (*_bfd_coff_pointerize_aux_hook) + PARAMS ((bfd *, combined_entry_type *, combined_entry_type *, + unsigned int, combined_entry_type *)); + + bfd_boolean (*_bfd_coff_print_aux) + PARAMS ((bfd *, FILE *, combined_entry_type *, combined_entry_type *, + combined_entry_type *, unsigned int)); + + void (*_bfd_coff_reloc16_extra_cases) + PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_order *, arelent *, + bfd_byte *, unsigned int *, unsigned int *)); + + int (*_bfd_coff_reloc16_estimate) + PARAMS ((bfd *, asection *, arelent *, unsigned int, + struct bfd_link_info *)); + + enum coff_symbol_classification (*_bfd_coff_classify_symbol) + PARAMS ((bfd *, struct internal_syment *)); + + bfd_boolean (*_bfd_coff_compute_section_file_positions) + PARAMS ((bfd *)); + + bfd_boolean (*_bfd_coff_start_final_link) + PARAMS ((bfd *, struct bfd_link_info *)); + + bfd_boolean (*_bfd_coff_relocate_section) + PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, + struct internal_reloc *, struct internal_syment *, asection **)); + + reloc_howto_type *(*_bfd_coff_rtype_to_howto) + PARAMS ((bfd *, asection *, struct internal_reloc *, + struct coff_link_hash_entry *, struct internal_syment *, + bfd_vma *)); + + bfd_boolean (*_bfd_coff_adjust_symndx) + PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, + struct internal_reloc *, bfd_boolean *)); + + bfd_boolean (*_bfd_coff_link_add_one_symbol) + PARAMS ((struct bfd_link_info *, bfd *, const char *, flagword, + asection *, bfd_vma, const char *, bfd_boolean, bfd_boolean, + struct bfd_link_hash_entry **)); + + bfd_boolean (*_bfd_coff_link_output_has_begun) + PARAMS ((bfd *, struct coff_final_link_info *)); + + bfd_boolean (*_bfd_coff_final_link_postscript) + PARAMS ((bfd *, struct coff_final_link_info *)); + + } bfd_coff_backend_data; + + #define coff_backend_info(abfd) \ + ((bfd_coff_backend_data *) (abfd)->xvec->backend_data) + + #define bfd_coff_swap_aux_in(a,e,t,c,ind,num,i) \ + ((coff_backend_info (a)->_bfd_coff_swap_aux_in) (a,e,t,c,ind,num,i)) + + #define bfd_coff_swap_sym_in(a,e,i) \ + ((coff_backend_info (a)->_bfd_coff_swap_sym_in) (a,e,i)) + + #define bfd_coff_swap_lineno_in(a,e,i) \ + ((coff_backend_info ( a)->_bfd_coff_swap_lineno_in) (a,e,i)) + + #define bfd_coff_swap_reloc_out(abfd, i, o) \ + ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_out) (abfd, i, o)) + + #define bfd_coff_swap_lineno_out(abfd, i, o) \ + ((coff_backend_info (abfd)->_bfd_coff_swap_lineno_out) (abfd, i, o)) + + #define bfd_coff_swap_aux_out(a,i,t,c,ind,num,o) \ + ((coff_backend_info (a)->_bfd_coff_swap_aux_out) (a,i,t,c,ind,num,o)) + + #define bfd_coff_swap_sym_out(abfd, i,o) \ + ((coff_backend_info (abfd)->_bfd_coff_swap_sym_out) (abfd, i, o)) + + #define bfd_coff_swap_scnhdr_out(abfd, i,o) \ + ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_out) (abfd, i, o)) + + #define bfd_coff_swap_filehdr_out(abfd, i,o) \ + ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_out) (abfd, i, o)) + + #define bfd_coff_swap_aouthdr_out(abfd, i,o) \ + ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_out) (abfd, i, o)) + + #define bfd_coff_filhsz(abfd) (coff_backend_info (abfd)->_bfd_filhsz) + #define bfd_coff_aoutsz(abfd) (coff_backend_info (abfd)->_bfd_aoutsz) + #define bfd_coff_scnhsz(abfd) (coff_backend_info (abfd)->_bfd_scnhsz) + #define bfd_coff_symesz(abfd) (coff_backend_info (abfd)->_bfd_symesz) + #define bfd_coff_auxesz(abfd) (coff_backend_info (abfd)->_bfd_auxesz) + #define bfd_coff_relsz(abfd) (coff_backend_info (abfd)->_bfd_relsz) + #define bfd_coff_linesz(abfd) (coff_backend_info (abfd)->_bfd_linesz) + #define bfd_coff_filnmlen(abfd) (coff_backend_info (abfd)->_bfd_filnmlen) + #define bfd_coff_long_filenames(abfd) \ + (coff_backend_info (abfd)->_bfd_coff_long_filenames) + #define bfd_coff_long_section_names(abfd) \ + (coff_backend_info (abfd)->_bfd_coff_long_section_names) + #define bfd_coff_default_section_alignment_power(abfd) \ + (coff_backend_info (abfd)->_bfd_coff_default_section_alignment_power) + #define bfd_coff_swap_filehdr_in(abfd, i,o) \ + ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_in) (abfd, i, o)) + + #define bfd_coff_swap_aouthdr_in(abfd, i,o) \ + ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_in) (abfd, i, o)) + + #define bfd_coff_swap_scnhdr_in(abfd, i,o) \ + ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_in) (abfd, i, o)) + + #define bfd_coff_swap_reloc_in(abfd, i, o) \ + ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_in) (abfd, i, o)) + + #define bfd_coff_bad_format_hook(abfd, filehdr) \ + ((coff_backend_info (abfd)->_bfd_coff_bad_format_hook) (abfd, filehdr)) + + #define bfd_coff_set_arch_mach_hook(abfd, filehdr)\ + ((coff_backend_info (abfd)->_bfd_coff_set_arch_mach_hook) (abfd, filehdr)) + #define bfd_coff_mkobject_hook(abfd, filehdr, aouthdr)\ + ((coff_backend_info (abfd)->_bfd_coff_mkobject_hook)\ + (abfd, filehdr, aouthdr)) + + #define bfd_coff_styp_to_sec_flags_hook(abfd, scnhdr, name, section, flags_ptr)\ + ((coff_backend_info (abfd)->_bfd_styp_to_sec_flags_hook)\ + (abfd, scnhdr, name, section, flags_ptr)) + + #define bfd_coff_set_alignment_hook(abfd, sec, scnhdr)\ + ((coff_backend_info (abfd)->_bfd_set_alignment_hook) (abfd, sec, scnhdr)) + + #define bfd_coff_slurp_symbol_table(abfd)\ + ((coff_backend_info (abfd)->_bfd_coff_slurp_symbol_table) (abfd)) + + #define bfd_coff_symname_in_debug(abfd, sym)\ + ((coff_backend_info (abfd)->_bfd_coff_symname_in_debug) (abfd, sym)) + + #define bfd_coff_force_symnames_in_strings(abfd)\ + (coff_backend_info (abfd)->_bfd_coff_force_symnames_in_strings) + + #define bfd_coff_debug_string_prefix_length(abfd)\ + (coff_backend_info (abfd)->_bfd_coff_debug_string_prefix_length) + + #define bfd_coff_print_aux(abfd, file, base, symbol, aux, indaux)\ + ((coff_backend_info (abfd)->_bfd_coff_print_aux)\ + (abfd, file, base, symbol, aux, indaux)) + + #define bfd_coff_reloc16_extra_cases(abfd, link_info, link_order,\ + reloc, data, src_ptr, dst_ptr)\ + ((coff_backend_info (abfd)->_bfd_coff_reloc16_extra_cases)\ + (abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr)) + + #define bfd_coff_reloc16_estimate(abfd, section, reloc, shrink, link_info)\ + ((coff_backend_info (abfd)->_bfd_coff_reloc16_estimate)\ + (abfd, section, reloc, shrink, link_info)) + + #define bfd_coff_classify_symbol(abfd, sym)\ + ((coff_backend_info (abfd)->_bfd_coff_classify_symbol)\ + (abfd, sym)) + + #define bfd_coff_compute_section_file_positions(abfd)\ + ((coff_backend_info (abfd)->_bfd_coff_compute_section_file_positions)\ + (abfd)) + + #define bfd_coff_start_final_link(obfd, info)\ + ((coff_backend_info (obfd)->_bfd_coff_start_final_link)\ + (obfd, info)) + #define bfd_coff_relocate_section(obfd,info,ibfd,o,con,rel,isyms,secs)\ + ((coff_backend_info (ibfd)->_bfd_coff_relocate_section)\ + (obfd, info, ibfd, o, con, rel, isyms, secs)) + #define bfd_coff_rtype_to_howto(abfd, sec, rel, h, sym, addendp)\ + ((coff_backend_info (abfd)->_bfd_coff_rtype_to_howto)\ + (abfd, sec, rel, h, sym, addendp)) + #define bfd_coff_adjust_symndx(obfd, info, ibfd, sec, rel, adjustedp)\ + ((coff_backend_info (abfd)->_bfd_coff_adjust_symndx)\ + (obfd, info, ibfd, sec, rel, adjustedp)) + #define bfd_coff_link_add_one_symbol(info, abfd, name, flags, section,\ + value, string, cp, coll, hashp)\ + ((coff_backend_info (abfd)->_bfd_coff_link_add_one_symbol)\ + (info, abfd, name, flags, section, value, string, cp, coll, hashp)) + + #define bfd_coff_link_output_has_begun(a,p) \ + ((coff_backend_info (a)->_bfd_coff_link_output_has_begun) (a,p)) + #define bfd_coff_final_link_postscript(a,p) \ + ((coff_backend_info (a)->_bfd_coff_final_link_postscript) (a,p)) + +3.2.2.7 Writing relocations +........................... + +To write relocations, the back end steps though the canonical +relocation table and create an `internal_reloc'. The symbol index to +use is removed from the `offset' field in the symbol table supplied. +The address comes directly from the sum of the section base address and +the relocation offset; the type is dug directly from the howto field. +Then the `internal_reloc' is swapped into the shape of an +`external_reloc' and written out to disk. + +3.2.2.8 Reading linenumbers +........................... + +Creating the linenumber table is done by reading in the entire coff +linenumber table, and creating another table for internal use. + + A coff linenumber table is structured so that each function is +marked as having a line number of 0. Each line within the function is +an offset from the first line in the function. The base of the line +number information for the table is stored in the symbol associated +with the function. + + Note: The PE format uses line number 0 for a flag indicating a new +source file. + + The information is copied from the external to the internal table, +and each symbol which marks a function is marked by pointing its... + + How does this work ? + +3.2.2.9 Reading relocations +........................... + +Coff relocations are easily transformed into the internal BFD form +(`arelent'). + + Reading a coff relocation table is done in the following stages: + + * Read the entire coff relocation table into memory. + + * Process each relocation in turn; first swap it from the external + to the internal form. + + * Turn the symbol referenced in the relocation's symbol index into a + pointer into the canonical symbol table. This table is the same + as the one returned by a call to `bfd_canonicalize_symtab'. The + back end will call that routine and save the result if a + canonicalization hasn't been done. + + * The reloc index is turned into a pointer to a howto structure, in + a back end specific way. For instance, the 386 and 960 use the + `r_type' to directly produce an index into a howto table vector; + the 88k subtracts a number from the `r_type' field and creates an + addend field. + + +File: bfd.info, Node: elf, Next: mmo, Prev: coff, Up: BFD back ends + +3.3 +=== + +ELF backends + + BFD support for ELF formats is being worked on. Currently, the best +supported back ends are for sparc and i386 (running svr4 or Solaris 2). + + Documentation of the internals of the support code still needs to be +written. The code is changing quickly enough that we haven't bothered +yet. + +3.3.0.1 `bfd_elf_find_section' +.............................. + +*Synopsis* + struct elf_internal_shdr *bfd_elf_find_section (bfd *abfd, char *name); + *Description* +Helper functions for GDB to locate the string tables. Since BFD hides +string tables from callers, GDB needs to use an internal hook to find +them. Sun's .stabstr, in particular, isn't even pointed to by the +.stab section, so ordinary mechanisms wouldn't work to find it, even if +we had some. + + +File: bfd.info, Node: mmo, Prev: elf, Up: BFD back ends + +3.4 mmo backend +=============== + +The mmo object format is used exclusively together with Professor +Donald E. Knuth's educational 64-bit processor MMIX. The simulator +`mmix' which is available at +`http://www-cs-faculty.stanford.edu/~knuth/programs/mmix.tar.gz' +understands this format. That package also includes a combined +assembler and linker called `mmixal'. The mmo format has no advantages +feature-wise compared to e.g. ELF. It is a simple non-relocatable +object format with no support for archives or debugging information, +except for symbol value information and line numbers (which is not yet +implemented in BFD). See +`http://www-cs-faculty.stanford.edu/~knuth/mmix.html' for more +information about MMIX. The ELF format is used for intermediate object +files in the BFD implementation. + +* Menu: + +* File layout:: +* Symbol-table:: +* mmo section mapping:: + + +File: bfd.info, Node: File layout, Next: Symbol-table, Prev: mmo, Up: mmo + +3.4.1 File layout +----------------- + +The mmo file contents is not partitioned into named sections as with +e.g. ELF. Memory areas is formed by specifying the location of the +data that follows. Only the memory area `0x0000...00' to `0x01ff...ff' +is executable, so it is used for code (and constants) and the area +`0x2000...00' to `0x20ff...ff' is used for writable data. *Note mmo +section mapping::. + + There is provision for specifying "special data" of 65536 different +types. We use type 80 (decimal), arbitrarily chosen the same as the +ELF `e_machine' number for MMIX, filling it with section information +normally found in ELF objects. *Note mmo section mapping::. + + Contents is entered as 32-bit words, xor:ed over previous contents, +always zero-initialized. A word that starts with the byte `0x98' forms +a command called a `lopcode', where the next byte distinguished between +the thirteen lopcodes. The two remaining bytes, called the `Y' and `Z' +fields, or the `YZ' field (a 16-bit big-endian number), are used for +various purposes different for each lopcode. As documented in +`http://www-cs-faculty.stanford.edu/~knuth/mmixal-intro.ps.gz', the +lopcodes are: + +`lop_quote' + 0x98000001. The next word is contents, regardless of whether it + starts with 0x98 or not. + +`lop_loc' + 0x9801YYZZ, where `Z' is 1 or 2. This is a location directive, + setting the location for the next data to the next 32-bit word + (for Z = 1) or 64-bit word (for Z = 2), plus Y * 2^56. Normally + `Y' is 0 for the text segment and 2 for the data segment. + +`lop_skip' + 0x9802YYZZ. Increase the current location by `YZ' bytes. + +`lop_fixo' + 0x9803YYZZ, where `Z' is 1 or 2. Store the current location as 64 + bits into the location pointed to by the next 32-bit (Z = 1) or + 64-bit (Z = 2) word, plus Y * 2^56. + +`lop_fixr' + 0x9804YYZZ. `YZ' is stored into the current location plus 2 - 4 * + YZ. + +`lop_fixrx' + 0x980500ZZ. `Z' is 16 or 24. A value `L' derived from the + following 32-bit word are used in a manner similar to `YZ' in + lop_fixr: it is xor:ed into the current location minus 4 * L. The + first byte of the word is 0 or 1. If it is 1, then L = (LOWEST 24 + BITS OF WORD) - 2^Z, if 0, then L = (LOWEST 24 BITS OF WORD). + +`lop_file' + 0x9806YYZZ. `Y' is the file number, `Z' is count of 32-bit words. + Set the file number to `Y' and the line counter to 0. The next Z + * 4 bytes contain the file name, padded with zeros if the count is + not a multiple of four. The same `Y' may occur multiple times, + but `Z' must be 0 for all but the first occurrence. + +`lop_line' + 0x9807YYZZ. `YZ' is the line number. Together with lop_file, it + forms the source location for the next 32-bit word. Note that for + each non-lopcode 32-bit word, line numbers are assumed incremented + by one. + +`lop_spec' + 0x9808YYZZ. `YZ' is the type number. Data until the next lopcode + other than lop_quote forms special data of type `YZ'. *Note mmo + section mapping::. + + Other types than 80, (or type 80 with a content that does not + parse) is stored in sections named `.MMIX.spec_data.N' where N is + the `YZ'-type. The flags for such a sections say not to allocate + or load the data. The vma is 0. Contents of multiple occurrences + of special data N is concatenated to the data of the previous + lop_spec Ns. The location in data or code at which the lop_spec + occurred is lost. + +`lop_pre' + 0x980901ZZ. The first lopcode in a file. The `Z' field forms the + length of header information in 32-bit words, where the first word + tells the time in seconds since `00:00:00 GMT Jan 1 1970'. + +`lop_post' + 0x980a00ZZ. Z > 32. This lopcode follows after all + content-generating lopcodes in a program. The `Z' field denotes + the value of `rG' at the beginning of the program. The following + 256 - Z big-endian 64-bit words are loaded into global registers + `$G' ... `$255'. + +`lop_stab' + 0x980b0000. The next-to-last lopcode in a program. Must follow + immediately after the lop_post lopcode and its data. After this + lopcode follows all symbols in a compressed format (*note + Symbol-table::). + +`lop_end' + 0x980cYYZZ. The last lopcode in a program. It must follow the + lop_stab lopcode and its data. The `YZ' field contains the number + of 32-bit words of symbol table information after the preceding + lop_stab lopcode. + + Note that the lopcode "fixups"; `lop_fixr', `lop_fixrx' and +`lop_fixo' are not generated by BFD, but are handled. They are +generated by `mmixal'. + + This trivial one-label, one-instruction file: + + :Main TRAP 1,2,3 + + can be represented this way in mmo: + + 0x98090101 - lop_pre, one 32-bit word with timestamp. + <timestamp> + 0x98010002 - lop_loc, text segment, using a 64-bit address. + Note that mmixal does not emit this for the file above. + 0x00000000 - Address, high 32 bits. + 0x00000000 - Address, low 32 bits. + 0x98060002 - lop_file, 2 32-bit words for file-name. + 0x74657374 - "test" + 0x2e730000 - ".s\0\0" + 0x98070001 - lop_line, line 1. + 0x00010203 - TRAP 1,2,3 + 0x980a00ff - lop_post, setting $255 to 0. + 0x00000000 + 0x00000000 + 0x980b0000 - lop_stab for ":Main" = 0, serial 1. + 0x203a4040 *Note Symbol-table::. + 0x10404020 + 0x4d206120 + 0x69016e00 + 0x81000000 + 0x980c0005 - lop_end; symbol table contained five 32-bit words. + + +File: bfd.info, Node: Symbol-table, Next: mmo section mapping, Prev: File layout, Up: mmo + +3.4.2 Symbol table format +------------------------- + +From mmixal.w (or really, the generated mmixal.tex) in +`http://www-cs-faculty.stanford.edu/~knuth/programs/mmix.tar.gz'): +"Symbols are stored and retrieved by means of a `ternary search trie', +following ideas of Bentley and Sedgewick. (See ACM-SIAM Symp. on +Discrete Algorithms `8' (1997), 360-369; R.Sedgewick, `Algorithms in C' +(Reading, Mass. Addison-Wesley, 1998), `15.4'.) Each trie node stores +a character, and there are branches to subtries for the cases where a +given character is less than, equal to, or greater than the character +in the trie. There also is a pointer to a symbol table entry if a +symbol ends at the current node." + + So it's a tree encoded as a stream of bytes. The stream of bytes +acts on a single virtual global symbol, adding and removing characters +and signalling complete symbol points. Here, we read the stream and +create symbols at the completion points. + + First, there's a control byte `m'. If any of the listed bits in `m' +is nonzero, we execute what stands at the right, in the listed order: + + (MMO3_LEFT) + 0x40 - Traverse left trie. + (Read a new command byte and recurse.) + + (MMO3_SYMBITS) + 0x2f - Read the next byte as a character and store it in the + current character position; increment character position. + Test the bits of `m': + + (MMO3_WCHAR) + 0x80 - The character is 16-bit (so read another byte, + merge into current character. + + (MMO3_TYPEBITS) + 0xf - We have a complete symbol; parse the type, value + and serial number and do what should be done + with a symbol. The type and length information + is in j = (m & 0xf). + + (MMO3_REGQUAL_BITS) + j == 0xf: A register variable. The following + byte tells which register. + j <= 8: An absolute symbol. Read j bytes as the + big-endian number the symbol equals. + A j = 2 with two zero bytes denotes an + unknown symbol. + j > 8: As with j <= 8, but add (0x20 << 56) + to the value in the following j - 8 + bytes. + + Then comes the serial number, as a variant of + uleb128, but better named ubeb128: + Read bytes and shift the previous value left 7 + (multiply by 128). Add in the new byte, repeat + until a byte has bit 7 set. The serial number + is the computed value minus 128. + + (MMO3_MIDDLE) + 0x20 - Traverse middle trie. (Read a new command byte + and recurse.) Decrement character position. + + (MMO3_RIGHT) + 0x10 - Traverse right trie. (Read a new command byte and + recurse.) + + Let's look again at the `lop_stab' for the trivial file (*note File +layout::). + + 0x980b0000 - lop_stab for ":Main" = 0, serial 1. + 0x203a4040 + 0x10404020 + 0x4d206120 + 0x69016e00 + 0x81000000 + + This forms the trivial trie (note that the path between ":" and "M" +is redundant): + + 203a ":" + 40 / + 40 / + 10 \ + 40 / + 40 / + 204d "M" + 2061 "a" + 2069 "i" + 016e "n" is the last character in a full symbol, and + with a value represented in one byte. + 00 The value is 0. + 81 The serial number is 1. + diff --git a/bfd/doc/bfd.info-2 b/bfd/doc/bfd.info-2 new file mode 100644 index 0000000000..0485aed5b7 --- /dev/null +++ b/bfd/doc/bfd.info-2 @@ -0,0 +1,1702 @@ +This is ../.././bfd/doc/bfd.info, produced by makeinfo version 4.7 from +../.././bfd/doc/bfd.texinfo. + +START-INFO-DIR-ENTRY +* Bfd: (bfd). The Binary File Descriptor library. +END-INFO-DIR-ENTRY + + This file documents the BFD library. + + Copyright (C) 1991, 2000, 2001, 2003 Free Software Foundation, Inc. + + Permission is granted to copy, distribute and/or modify this document + under the terms of the GNU Free Documentation License, Version 1.1 + or any later version published by the Free Software Foundation; + with no Invariant Sections, with no Front-Cover Texts, and with no + Back-Cover Texts. A copy of the license is included in the +section entitled "GNU Free Documentation License". + + +File: bfd.info, Node: mmo section mapping, Prev: Symbol-table, Up: mmo + +3.4.3 mmo section mapping +------------------------- + +The implementation in BFD uses special data type 80 (decimal) to +encapsulate and describe named sections, containing e.g. debug +information. If needed, any datum in the encapsulation will be quoted +using lop_quote. First comes a 32-bit word holding the number of +32-bit words containing the zero-terminated zero-padded segment name. +After the name there's a 32-bit word holding flags describing the +section type. Then comes a 64-bit big-endian word with the section +length (in bytes), then another with the section start address. +Depending on the type of section, the contents might follow, +zero-padded to 32-bit boundary. For a loadable section (such as data +or code), the contents might follow at some later point, not +necessarily immediately, as a lop_loc with the same start address as in +the section description, followed by the contents. This in effect +forms a descriptor that must be emitted before the actual contents. +Sections described this way must not overlap. + + For areas that don't have such descriptors, synthetic sections are +formed by BFD. Consecutive contents in the two memory areas +`0x0000...00' to `0x01ff...ff' and `0x2000...00' to `0x20ff...ff' are +entered in sections named `.text' and `.data' respectively. If an area +is not otherwise described, but would together with a neighboring lower +area be less than `0x40000000' bytes long, it is joined with the lower +area and the gap is zero-filled. For other cases, a new section is +formed, named `.MMIX.sec.N'. Here, N is a number, a running count +through the mmo file, starting at 0. + + A loadable section specified as: + + .section secname,"ax" + TETRA 1,2,3,4,-1,-2009 + BYTE 80 + + and linked to address `0x4', is represented by the sequence: + + 0x98080050 - lop_spec 80 + 0x00000002 - two 32-bit words for the section name + 0x7365636e - "secn" + 0x616d6500 - "ame\0" + 0x00000033 - flags CODE, READONLY, LOAD, ALLOC + 0x00000000 - high 32 bits of section length + 0x0000001c - section length is 28 bytes; 6 * 4 + 1 + alignment to 32 bits + 0x00000000 - high 32 bits of section address + 0x00000004 - section address is 4 + 0x98010002 - 64 bits with address of following data + 0x00000000 - high 32 bits of address + 0x00000004 - low 32 bits: data starts at address 4 + 0x00000001 - 1 + 0x00000002 - 2 + 0x00000003 - 3 + 0x00000004 - 4 + 0xffffffff - -1 + 0xfffff827 - -2009 + 0x50000000 - 80 as a byte, padded with zeros. + + Note that the lop_spec wrapping does not include the section +contents. Compare this to a non-loaded section specified as: + + .section thirdsec + TETRA 200001,100002 + BYTE 38,40 + + This, when linked to address `0x200000000000001c', is represented by: + + 0x98080050 - lop_spec 80 + 0x00000002 - two 32-bit words for the section name + 0x7365636e - "thir" + 0x616d6500 - "dsec" + 0x00000010 - flag READONLY + 0x00000000 - high 32 bits of section length + 0x0000000c - section length is 12 bytes; 2 * 4 + 2 + alignment to 32 bits + 0x20000000 - high 32 bits of address + 0x0000001c - low 32 bits of address 0x200000000000001c + 0x00030d41 - 200001 + 0x000186a2 - 100002 + 0x26280000 - 38, 40 as bytes, padded with zeros + + For the latter example, the section contents must not be loaded in +memory, and is therefore specified as part of the special data. The +address is usually unimportant but might provide information for e.g. +the DWARF 2 debugging format. + + +File: bfd.info, Node: GNU Free Documentation License, Next: Index, Prev: BFD back ends, Up: Top + +Appendix A GNU Free Documentation License +***************************************** + + Version 1.1, March 2000 + + Copyright (C) 2000, 2003 Free Software Foundation, Inc. + 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + + 0. PREAMBLE + + The purpose of this License is to make a manual, textbook, or other + written document "free" in the sense of freedom: to assure everyone + the effective freedom to copy and redistribute it, with or without + modifying it, either commercially or noncommercially. Secondarily, + this License preserves for the author and publisher a way to get + credit for their work, while not being considered responsible for + modifications made by others. + + This License is a kind of "copyleft", which means that derivative + works of the document must themselves be free in the same sense. + It complements the GNU General Public License, which is a copyleft + license designed for free software. + + We have designed this License in order to use it for manuals for + free software, because free software needs free documentation: a + free program should come with manuals providing the same freedoms + that the software does. But this License is not limited to + software manuals; it can be used for any textual work, regardless + of subject matter or whether it is published as a printed book. + We recommend this License principally for works whose purpose is + instruction or reference. + + + 1. 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TRANSLATION + + Translation is considered a kind of modification, so you may + distribute translations of the Document under the terms of section + 4. Replacing Invariant Sections with translations requires special + permission from their copyright holders, but you may include + translations of some or all Invariant Sections in addition to the + original versions of these Invariant Sections. You may include a + translation of this License provided that you also include the + original English version of this License. In case of a + disagreement between the translation and the original English + version of this License, the original English version will prevail. + + 9. TERMINATION + + You may not copy, modify, sublicense, or distribute the Document + except as expressly provided for under this License. Any other + attempt to copy, modify, sublicense or distribute the Document is + void, and will automatically terminate your rights under this + License. However, parties who have received copies, or rights, + from you under this License will not have their licenses + terminated so long as such parties remain in full compliance. + + 10. FUTURE REVISIONS OF THIS LICENSE + + The Free Software Foundation may publish new, revised versions of + the GNU Free Documentation License from time to time. Such new + versions will be similar in spirit to the present version, but may + differ in detail to address new problems or concerns. See + http://www.gnu.org/copyleft/. + + Each version of the License is given a distinguishing version + number. If the Document specifies that a particular numbered + version of this License "or any later version" applies to it, you + have the option of following the terms and conditions either of + that specified version or of any later version that has been + published (not as a draft) by the Free Software Foundation. If + the Document does not specify a version number of this License, + you may choose any version ever published (not as a draft) by the + Free Software Foundation. + + +ADDENDUM: How to use this License for your documents +==================================================== + +To use this License in a document you have written, include a copy of +the License in the document and put the following copyright and license +notices just after the title page: + + Copyright (C) YEAR YOUR NAME. + Permission is granted to copy, distribute and/or modify this document + under the terms of the GNU Free Documentation License, Version 1.1 + or any later version published by the Free Software Foundation; + with the Invariant Sections being LIST THEIR TITLES, with the + Front-Cover Texts being LIST, and with the Back-Cover Texts being LIST. + A copy of the license is included in the section entitled "GNU + Free Documentation License." + + If you have no Invariant Sections, write "with no Invariant Sections" +instead of saying which ones are invariant. If you have no Front-Cover +Texts, write "no Front-Cover Texts" instead of "Front-Cover Texts being +LIST"; likewise for Back-Cover Texts. + + If your document contains nontrivial examples of program code, we +recommend releasing these examples in parallel under your choice of +free software license, such as the GNU General Public License, to +permit their use in free software. + + +File: bfd.info, Node: Index, Prev: GNU Free Documentation License, Up: Top + +Index +***** + + +* Menu: + +* _bfd_final_link_relocate: Relocating the section contents. + (line 22) +* _bfd_generic_link_add_archive_symbols: Adding symbols from an archive. + (line 12) +* _bfd_generic_link_add_one_symbol: Adding symbols from an object file. + (line 19) +* _bfd_generic_make_empty_symbol: symbol handling functions. + (line 92) +* _bfd_link_add_symbols in target vector: Adding Symbols to the Hash Table. + (line 6) +* _bfd_link_final_link in target vector: Performing the Final Link. + (line 6) +* _bfd_link_hash_table_create in target vector: Creating a Linker Hash Table. + (line 6) +* _bfd_relocate_contents: Relocating the section contents. + (line 22) +* _bfd_strip_section_from_output: section prototypes. (line 242) +* aout_SIZE_machine_type: aout. (line 146) +* aout_SIZE_mkobject: aout. (line 138) +* aout_SIZE_new_section_hook: aout. (line 175) +* aout_SIZE_set_arch_mach: aout. (line 162) +* aout_SIZE_some_aout_object_p: aout. (line 125) +* aout_SIZE_swap_exec_header_in: aout. (line 101) +* aout_SIZE_swap_exec_header_out: aout. (line 113) +* arelent_chain: typedef arelent. (line 338) +* BFD: Overview. (line 6) +* BFD canonical format: Canonical format. (line 11) +* bfd_alloc: Opening and Closing. + (line 179) +* bfd_alt_mach_code: BFD front end. (line 588) +* bfd_arch_bits_per_address: Architectures. (line 453) +* bfd_arch_bits_per_byte: Architectures. (line 445) +* bfd_arch_get_compatible: Architectures. (line 388) +* bfd_arch_list: Architectures. (line 379) +* bfd_arch_mach_octets_per_byte: Architectures. (line 522) +* bfd_cache_close: File Caching. (line 53) +* bfd_cache_close_all: File Caching. (line 66) +* bfd_cache_init: File Caching. (line 45) +* bfd_cache_lookup: File Caching. (line 32) +* bfd_cache_lookup_worker: File Caching. (line 91) +* BFD_CACHE_MAX_OPEN macro: File Caching. (line 15) +* bfd_calc_gnu_debuglink_crc32: Opening and Closing. + (line 197) +* bfd_canonicalize_reloc: BFD front end. (line 315) +* bfd_canonicalize_symtab: symbol handling functions. + (line 50) +* bfd_check_format: Formats. (line 18) +* bfd_check_format_matches: Formats. (line 49) +* bfd_check_overflow: typedef arelent. (line 350) +* bfd_close: Opening and Closing. + (line 104) +* bfd_close_all_done: Opening and Closing. + (line 122) +* bfd_coff_backend_data: coff. (line 246) +* bfd_copy_private_bfd_data: BFD front end. (line 454) +* bfd_copy_private_header_data: BFD front end. (line 436) +* bfd_copy_private_section_data: section prototypes. (line 224) +* bfd_copy_private_symbol_data: symbol handling functions. + (line 140) +* bfd_core_file_failing_command: Core Files. (line 9) +* bfd_core_file_failing_signal: Core Files. (line 18) +* bfd_create: Opening and Closing. + (line 141) +* bfd_create_gnu_debuglink_section: Opening and Closing. + (line 263) +* bfd_decode_symclass: symbol handling functions. + (line 111) +* bfd_default_arch_struct: Architectures. (line 400) +* bfd_default_compatible: Architectures. (line 462) +* bfd_default_reloc_type_lookup: howto manager. (line 1704) +* bfd_default_scan: Architectures. (line 471) +* bfd_default_set_arch_mach: Architectures. (line 418) +* bfd_elf_find_section: elf. (line 15) +* bfd_errmsg: BFD front end. (line 243) +* bfd_fdopenr: Opening and Closing. + (line 22) +* bfd_fill_in_gnu_debuglink_section: Opening and Closing. + (line 277) +* bfd_find_target: bfd_target. (line 420) +* bfd_follow_gnu_debuglink: Opening and Closing. + (line 242) +* bfd_format_string: Formats. (line 76) +* bfd_generic_discard_group: section prototypes. (line 264) +* bfd_generic_gc_sections: howto manager. (line 1735) +* bfd_generic_get_relocated_section_contents: howto manager. (line 1755) +* bfd_generic_is_group_section: section prototypes. (line 256) +* bfd_generic_merge_sections: howto manager. (line 1745) +* bfd_generic_relax_section: howto manager. (line 1722) +* bfd_get_arch: Architectures. (line 429) +* bfd_get_arch_info: Architectures. (line 481) +* bfd_get_arch_size: BFD front end. (line 359) +* bfd_get_error: BFD front end. (line 226) +* bfd_get_error_handler: BFD front end. (line 294) +* bfd_get_gp_size: BFD front end. (line 400) +* bfd_get_mach: Architectures. (line 437) +* bfd_get_mtime: BFD front end. (line 676) +* bfd_get_next_mapent: Archives. (line 49) +* bfd_get_reloc_code_name: howto manager. (line 1713) +* bfd_get_reloc_size: typedef arelent. (line 329) +* bfd_get_reloc_upper_bound: BFD front end. (line 305) +* bfd_get_section_by_name: section prototypes. (line 17) +* bfd_get_section_by_name_if: section prototypes. (line 31) +* bfd_get_section_contents: section prototypes. (line 197) +* bfd_get_sign_extend_vma: BFD front end. (line 372) +* bfd_get_size <1>: Internal. (line 22) +* bfd_get_size: BFD front end. (line 685) +* bfd_get_symtab_upper_bound: symbol handling functions. + (line 6) +* bfd_get_unique_section_name: section prototypes. (line 50) +* bfd_h_put_size: Internal. (line 94) +* bfd_hash_allocate: Creating and Freeing a Hash Table. + (line 17) +* bfd_hash_lookup: Looking Up or Entering a String. + (line 6) +* bfd_hash_newfunc: Creating and Freeing a Hash Table. + (line 12) +* bfd_hash_set_default_size: Creating and Freeing a Hash Table. + (line 25) +* bfd_hash_table_free: Creating and Freeing a Hash Table. + (line 21) +* bfd_hash_table_init: Creating and Freeing a Hash Table. + (line 6) +* bfd_hash_table_init_n: Creating and Freeing a Hash Table. + (line 6) +* bfd_hash_traverse: Traversing a Hash Table. + (line 6) +* bfd_init: Initialization. (line 8) +* bfd_install_relocation: typedef arelent. (line 391) +* bfd_is_local_label: symbol handling functions. + (line 17) +* bfd_is_local_label_name: symbol handling functions. + (line 26) +* bfd_is_target_special_symbol: symbol handling functions. + (line 38) +* bfd_is_undefined_symclass: symbol handling functions. + (line 120) +* bfd_last_cache: File Caching. (line 22) +* bfd_link_split_section: Writing the symbol table. + (line 44) +* bfd_log2: Internal. (line 161) +* bfd_lookup_arch: Architectures. (line 489) +* bfd_make_debug_symbol: symbol handling functions. + (line 102) +* bfd_make_empty_symbol: symbol handling functions. + (line 78) +* bfd_make_readable: Opening and Closing. + (line 165) +* bfd_make_section: section prototypes. (line 98) +* bfd_make_section_anyway: section prototypes. (line 82) +* bfd_make_section_old_way: section prototypes. (line 62) +* bfd_make_writable: Opening and Closing. + (line 151) +* bfd_malloc_and_get_section: section prototypes. (line 214) +* bfd_map_over_sections: section prototypes. (line 124) +* bfd_merge_private_bfd_data: BFD front end. (line 470) +* bfd_octets_per_byte: Architectures. (line 512) +* bfd_open_file: File Caching. (line 79) +* bfd_openr: Opening and Closing. + (line 6) +* bfd_openr_iovec: Opening and Closing. + (line 52) +* bfd_openr_next_archived_file: Archives. (line 75) +* bfd_openstreamr: Opening and Closing. + (line 43) +* bfd_openw: Opening and Closing. + (line 92) +* bfd_perform_relocation: typedef arelent. (line 366) +* bfd_perror: BFD front end. (line 252) +* bfd_preserve_finish: BFD front end. (line 636) +* bfd_preserve_restore: BFD front end. (line 626) +* bfd_preserve_save: BFD front end. (line 610) +* bfd_print_symbol_vandf: symbol handling functions. + (line 70) +* bfd_printable_arch_mach: Architectures. (line 500) +* bfd_printable_name: Architectures. (line 360) +* bfd_put_size: Internal. (line 19) +* BFD_RELOC_12_PCREL: howto manager. (line 39) +* BFD_RELOC_14: howto manager. (line 31) +* BFD_RELOC_16: howto manager. (line 30) +* BFD_RELOC_16_BASEREL: howto manager. (line 80) +* BFD_RELOC_16_GOT_PCREL: howto manager. (line 52) +* BFD_RELOC_16_GOTOFF: howto manager. (line 55) +* BFD_RELOC_16_PCREL: howto manager. (line 38) +* BFD_RELOC_16_PCREL_S2: howto manager. (line 92) +* BFD_RELOC_16_PLT_PCREL: howto manager. (line 63) +* BFD_RELOC_16_PLTOFF: howto manager. (line 67) +* BFD_RELOC_16C_ABS20: howto manager. (line 1464) +* BFD_RELOC_16C_ABS20_C: howto manager. (line 1465) +* BFD_RELOC_16C_ABS24: howto manager. (line 1466) +* BFD_RELOC_16C_ABS24_C: howto manager. (line 1467) +* BFD_RELOC_16C_DISP04: howto manager. (line 1444) +* BFD_RELOC_16C_DISP04_C: howto manager. (line 1445) +* BFD_RELOC_16C_DISP08: howto manager. (line 1446) +* BFD_RELOC_16C_DISP08_C: howto manager. (line 1447) +* BFD_RELOC_16C_DISP16: howto manager. (line 1448) +* BFD_RELOC_16C_DISP16_C: howto manager. (line 1449) +* BFD_RELOC_16C_DISP24: howto manager. (line 1450) +* BFD_RELOC_16C_DISP24_C: howto manager. (line 1451) +* BFD_RELOC_16C_DISP24a: howto manager. (line 1452) +* BFD_RELOC_16C_DISP24a_C: howto manager. (line 1453) +* BFD_RELOC_16C_IMM04: howto manager. (line 1468) +* BFD_RELOC_16C_IMM04_C: howto manager. (line 1469) +* BFD_RELOC_16C_IMM16: howto manager. (line 1470) +* BFD_RELOC_16C_IMM16_C: howto manager. (line 1471) +* BFD_RELOC_16C_IMM20: howto manager. (line 1472) +* BFD_RELOC_16C_IMM20_C: howto manager. (line 1473) +* BFD_RELOC_16C_IMM24: howto manager. (line 1474) +* BFD_RELOC_16C_IMM24_C: howto manager. (line 1475) +* BFD_RELOC_16C_IMM32: howto manager. (line 1476) +* BFD_RELOC_16C_IMM32_C: howto manager. (line 1477) +* BFD_RELOC_16C_NUM08: howto manager. (line 1438) +* BFD_RELOC_16C_NUM08_C: howto manager. (line 1439) +* BFD_RELOC_16C_NUM16: howto manager. (line 1440) +* BFD_RELOC_16C_NUM16_C: howto manager. (line 1441) +* BFD_RELOC_16C_NUM32: howto manager. (line 1442) +* BFD_RELOC_16C_NUM32_C: howto manager. (line 1443) +* BFD_RELOC_16C_REG04: howto manager. (line 1454) +* BFD_RELOC_16C_REG04_C: howto manager. (line 1455) +* BFD_RELOC_16C_REG04a: howto manager. (line 1456) +* BFD_RELOC_16C_REG04a_C: howto manager. (line 1457) +* BFD_RELOC_16C_REG14: howto manager. (line 1458) +* BFD_RELOC_16C_REG14_C: howto manager. (line 1459) +* BFD_RELOC_16C_REG16: howto manager. (line 1460) +* BFD_RELOC_16C_REG16_C: howto manager. (line 1461) +* BFD_RELOC_16C_REG20: howto manager. (line 1462) +* BFD_RELOC_16C_REG20_C: howto manager. (line 1463) +* BFD_RELOC_23_PCREL_S2: howto manager. (line 93) +* BFD_RELOC_24: howto manager. (line 29) +* BFD_RELOC_24_PCREL: howto manager. (line 37) +* BFD_RELOC_24_PLT_PCREL: howto manager. (line 62) +* BFD_RELOC_26: howto manager. (line 28) +* BFD_RELOC_32: howto manager. (line 27) +* BFD_RELOC_32_BASEREL: howto manager. (line 79) +* BFD_RELOC_32_GOT_PCREL: howto manager. (line 51) +* BFD_RELOC_32_GOTOFF: howto manager. (line 54) +* BFD_RELOC_32_PCREL: howto manager. (line 36) +* BFD_RELOC_32_PCREL_S2: howto manager. (line 91) +* BFD_RELOC_32_PLT_PCREL: howto manager. (line 61) +* BFD_RELOC_32_PLTOFF: howto manager. (line 66) +* BFD_RELOC_32_SECREL: howto manager. (line 48) +* BFD_RELOC_386_COPY: howto manager. (line 422) +* BFD_RELOC_386_GLOB_DAT: howto manager. (line 423) +* BFD_RELOC_386_GOT32: howto manager. (line 420) +* BFD_RELOC_386_GOTOFF: howto manager. (line 426) +* BFD_RELOC_386_GOTPC: howto manager. (line 427) +* BFD_RELOC_386_JUMP_SLOT: howto manager. (line 424) +* BFD_RELOC_386_PLT32: howto manager. (line 421) +* BFD_RELOC_386_RELATIVE: howto manager. (line 425) +* BFD_RELOC_386_TLS_DTPMOD32: howto manager. (line 437) +* BFD_RELOC_386_TLS_DTPOFF32: howto manager. (line 438) +* BFD_RELOC_386_TLS_GD: howto manager. (line 432) +* BFD_RELOC_386_TLS_GOTIE: howto manager. (line 430) +* BFD_RELOC_386_TLS_IE: howto manager. (line 429) +* BFD_RELOC_386_TLS_IE_32: howto manager. (line 435) +* BFD_RELOC_386_TLS_LDM: howto manager. (line 433) +* BFD_RELOC_386_TLS_LDO_32: howto manager. (line 434) +* BFD_RELOC_386_TLS_LE: howto manager. (line 431) +* BFD_RELOC_386_TLS_LE_32: howto manager. (line 436) +* BFD_RELOC_386_TLS_TPOFF: howto manager. (line 428) +* BFD_RELOC_386_TLS_TPOFF32: howto manager. (line 439) +* BFD_RELOC_390_12: howto manager. (line 1155) +* BFD_RELOC_390_20: howto manager. (line 1255) +* BFD_RELOC_390_COPY: howto manager. (line 1164) +* BFD_RELOC_390_GLOB_DAT: howto manager. (line 1167) +* BFD_RELOC_390_GOT12: howto manager. (line 1158) +* BFD_RELOC_390_GOT16: howto manager. (line 1179) +* BFD_RELOC_390_GOT20: howto manager. (line 1256) +* BFD_RELOC_390_GOT64: howto manager. (line 1197) +* BFD_RELOC_390_GOTENT: howto manager. (line 1203) +* BFD_RELOC_390_GOTOFF64: howto manager. (line 1206) +* BFD_RELOC_390_GOTPC: howto manager. (line 1176) +* BFD_RELOC_390_GOTPCDBL: howto manager. (line 1194) +* BFD_RELOC_390_GOTPLT12: howto manager. (line 1209) +* BFD_RELOC_390_GOTPLT16: howto manager. (line 1212) +* BFD_RELOC_390_GOTPLT20: howto manager. (line 1257) +* BFD_RELOC_390_GOTPLT32: howto manager. (line 1215) +* BFD_RELOC_390_GOTPLT64: howto manager. (line 1218) +* BFD_RELOC_390_GOTPLTENT: howto manager. (line 1221) +* BFD_RELOC_390_JMP_SLOT: howto manager. (line 1170) +* BFD_RELOC_390_PC16DBL: howto manager. (line 1182) +* BFD_RELOC_390_PC32DBL: howto manager. (line 1188) +* BFD_RELOC_390_PLT16DBL: howto manager. (line 1185) +* BFD_RELOC_390_PLT32: howto manager. (line 1161) +* BFD_RELOC_390_PLT32DBL: howto manager. (line 1191) +* BFD_RELOC_390_PLT64: howto manager. (line 1200) +* BFD_RELOC_390_PLTOFF16: howto manager. (line 1224) +* BFD_RELOC_390_PLTOFF32: howto manager. (line 1227) +* BFD_RELOC_390_PLTOFF64: howto manager. (line 1230) +* BFD_RELOC_390_RELATIVE: howto manager. (line 1173) +* BFD_RELOC_390_TLS_DTPMOD: howto manager. (line 1250) +* BFD_RELOC_390_TLS_DTPOFF: howto manager. (line 1251) +* BFD_RELOC_390_TLS_GD32: howto manager. (line 1236) +* BFD_RELOC_390_TLS_GD64: howto manager. (line 1237) +* BFD_RELOC_390_TLS_GDCALL: howto manager. (line 1234) +* BFD_RELOC_390_TLS_GOTIE12: howto manager. (line 1238) +* BFD_RELOC_390_TLS_GOTIE20: howto manager. (line 1258) +* BFD_RELOC_390_TLS_GOTIE32: howto manager. (line 1239) +* BFD_RELOC_390_TLS_GOTIE64: howto manager. (line 1240) +* BFD_RELOC_390_TLS_IE32: howto manager. (line 1243) +* BFD_RELOC_390_TLS_IE64: howto manager. (line 1244) +* BFD_RELOC_390_TLS_IEENT: howto manager. (line 1245) +* BFD_RELOC_390_TLS_LDCALL: howto manager. (line 1235) +* BFD_RELOC_390_TLS_LDM32: howto manager. (line 1241) +* BFD_RELOC_390_TLS_LDM64: howto manager. (line 1242) +* BFD_RELOC_390_TLS_LDO32: howto manager. (line 1248) +* BFD_RELOC_390_TLS_LDO64: howto manager. (line 1249) +* BFD_RELOC_390_TLS_LE32: howto manager. (line 1246) +* BFD_RELOC_390_TLS_LE64: howto manager. (line 1247) +* BFD_RELOC_390_TLS_LOAD: howto manager. (line 1233) +* BFD_RELOC_390_TLS_TPOFF: howto manager. (line 1252) +* BFD_RELOC_64: howto manager. (line 26) +* BFD_RELOC_64_PCREL: howto manager. (line 35) +* BFD_RELOC_64_PLT_PCREL: howto manager. (line 60) +* BFD_RELOC_64_PLTOFF: howto manager. (line 65) +* BFD_RELOC_68K_GLOB_DAT: howto manager. (line 74) +* BFD_RELOC_68K_JMP_SLOT: howto manager. (line 75) +* BFD_RELOC_68K_RELATIVE: howto manager. (line 76) +* BFD_RELOC_8: howto manager. (line 32) +* BFD_RELOC_860_COPY: howto manager. (line 1543) +* BFD_RELOC_860_GLOB_DAT: howto manager. (line 1544) +* BFD_RELOC_860_HAGOT: howto manager. (line 1569) +* BFD_RELOC_860_HAGOTOFF: howto manager. (line 1570) +* BFD_RELOC_860_HAPC: howto manager. (line 1571) +* BFD_RELOC_860_HIGH: howto manager. (line 1572) +* BFD_RELOC_860_HIGHADJ: howto manager. (line 1568) +* BFD_RELOC_860_HIGOT: howto manager. (line 1573) +* BFD_RELOC_860_HIGOTOFF: howto manager. (line 1574) +* BFD_RELOC_860_JUMP_SLOT: howto manager. (line 1545) +* BFD_RELOC_860_LOGOT0: howto manager. (line 1557) +* BFD_RELOC_860_LOGOT1: howto manager. (line 1559) +* BFD_RELOC_860_LOGOTOFF0: howto manager. (line 1561) +* BFD_RELOC_860_LOGOTOFF1: howto manager. (line 1563) +* BFD_RELOC_860_LOGOTOFF2: howto manager. (line 1565) +* BFD_RELOC_860_LOGOTOFF3: howto manager. (line 1566) +* BFD_RELOC_860_LOPC: howto manager. (line 1567) +* BFD_RELOC_860_LOW0: howto manager. (line 1550) +* BFD_RELOC_860_LOW1: howto manager. (line 1552) +* BFD_RELOC_860_LOW2: howto manager. (line 1554) +* BFD_RELOC_860_LOW3: howto manager. (line 1556) +* BFD_RELOC_860_PC16: howto manager. (line 1549) +* BFD_RELOC_860_PC26: howto manager. (line 1547) +* BFD_RELOC_860_PLT26: howto manager. (line 1548) +* BFD_RELOC_860_RELATIVE: howto manager. (line 1546) +* BFD_RELOC_860_SPGOT0: howto manager. (line 1558) +* BFD_RELOC_860_SPGOT1: howto manager. (line 1560) +* BFD_RELOC_860_SPGOTOFF0: howto manager. (line 1562) +* BFD_RELOC_860_SPGOTOFF1: howto manager. (line 1564) +* BFD_RELOC_860_SPLIT0: howto manager. (line 1551) +* BFD_RELOC_860_SPLIT1: howto manager. (line 1553) +* BFD_RELOC_860_SPLIT2: howto manager. (line 1555) +* BFD_RELOC_8_BASEREL: howto manager. (line 84) +* BFD_RELOC_8_FFnn: howto manager. (line 88) +* BFD_RELOC_8_GOT_PCREL: howto manager. (line 53) +* BFD_RELOC_8_GOTOFF: howto manager. (line 59) +* BFD_RELOC_8_PCREL: howto manager. (line 40) +* BFD_RELOC_8_PLT_PCREL: howto manager. (line 64) +* BFD_RELOC_8_PLTOFF: howto manager. (line 71) +* BFD_RELOC_ALPHA_BRSGP: howto manager. (line 259) +* BFD_RELOC_ALPHA_CODEADDR: howto manager. (line 250) +* BFD_RELOC_ALPHA_DTPMOD64: howto manager. (line 266) +* BFD_RELOC_ALPHA_DTPREL16: howto manager. (line 271) +* BFD_RELOC_ALPHA_DTPREL64: howto manager. (line 268) +* BFD_RELOC_ALPHA_DTPREL_HI16: howto manager. (line 269) +* BFD_RELOC_ALPHA_DTPREL_LO16: howto manager. (line 270) +* BFD_RELOC_ALPHA_ELF_LITERAL: howto manager. (line 215) +* BFD_RELOC_ALPHA_GOTDTPREL16: howto manager. (line 267) +* BFD_RELOC_ALPHA_GOTTPREL16: howto manager. (line 272) +* BFD_RELOC_ALPHA_GPDISP: howto manager. (line 209) +* BFD_RELOC_ALPHA_GPDISP_HI16: howto manager. (line 195) +* BFD_RELOC_ALPHA_GPDISP_LO16: howto manager. (line 203) +* BFD_RELOC_ALPHA_GPREL_HI16: howto manager. (line 254) +* BFD_RELOC_ALPHA_GPREL_LO16: howto manager. (line 255) +* BFD_RELOC_ALPHA_HINT: howto manager. (line 241) +* BFD_RELOC_ALPHA_LINKAGE: howto manager. (line 246) +* BFD_RELOC_ALPHA_LITERAL: howto manager. (line 214) +* BFD_RELOC_ALPHA_LITUSE: howto manager. (line 216) +* BFD_RELOC_ALPHA_TLSGD: howto manager. (line 264) +* BFD_RELOC_ALPHA_TLSLDM: howto manager. (line 265) +* BFD_RELOC_ALPHA_TPREL16: howto manager. (line 276) +* BFD_RELOC_ALPHA_TPREL64: howto manager. (line 273) +* BFD_RELOC_ALPHA_TPREL_HI16: howto manager. (line 274) +* BFD_RELOC_ALPHA_TPREL_LO16: howto manager. (line 275) +* BFD_RELOC_ARC_B22_PCREL: howto manager. (line 754) +* BFD_RELOC_ARC_B26: howto manager. (line 759) +* BFD_RELOC_ARM_ADR_IMM: howto manager. (line 615) +* BFD_RELOC_ARM_ADRL_IMMEDIATE: howto manager. (line 607) +* BFD_RELOC_ARM_COPY: howto manager. (line 628) +* BFD_RELOC_ARM_CP_OFF_IMM: howto manager. (line 613) +* BFD_RELOC_ARM_CP_OFF_IMM_S2: howto manager. (line 614) +* BFD_RELOC_ARM_GLOB_DAT: howto manager. (line 629) +* BFD_RELOC_ARM_GOT12: howto manager. (line 625) +* BFD_RELOC_ARM_GOT32: howto manager. (line 626) +* BFD_RELOC_ARM_GOTOFF: howto manager. (line 632) +* BFD_RELOC_ARM_GOTPC: howto manager. (line 633) +* BFD_RELOC_ARM_HWLITERAL: howto manager. (line 620) +* BFD_RELOC_ARM_IMMEDIATE: howto manager. (line 606) +* BFD_RELOC_ARM_IN_POOL: howto manager. (line 618) +* BFD_RELOC_ARM_JUMP_SLOT: howto manager. (line 627) +* BFD_RELOC_ARM_LDR_IMM: howto manager. (line 616) +* BFD_RELOC_ARM_LITERAL: howto manager. (line 617) +* BFD_RELOC_ARM_MULTI: howto manager. (line 612) +* BFD_RELOC_ARM_OFFSET_IMM: howto manager. (line 608) +* BFD_RELOC_ARM_OFFSET_IMM8: howto manager. (line 619) +* BFD_RELOC_ARM_PCREL_BLX: howto manager. (line 596) +* BFD_RELOC_ARM_PCREL_BRANCH: howto manager. (line 592) +* BFD_RELOC_ARM_PLT32: howto manager. (line 630) +* BFD_RELOC_ARM_PREL31: howto manager. (line 652) +* BFD_RELOC_ARM_RELATIVE: howto manager. (line 631) +* BFD_RELOC_ARM_ROSEGREL32: howto manager. (line 641) +* BFD_RELOC_ARM_SBREL32: howto manager. (line 644) +* BFD_RELOC_ARM_SHIFT_IMM: howto manager. (line 609) +* BFD_RELOC_ARM_SMI: howto manager. (line 610) +* BFD_RELOC_ARM_SWI: howto manager. (line 611) +* BFD_RELOC_ARM_TARGET1: howto manager. (line 637) +* BFD_RELOC_ARM_TARGET2: howto manager. (line 647) +* BFD_RELOC_ARM_THUMB_ADD: howto manager. (line 621) +* BFD_RELOC_ARM_THUMB_IMM: howto manager. (line 622) +* BFD_RELOC_ARM_THUMB_OFFSET: howto manager. (line 624) +* BFD_RELOC_ARM_THUMB_SHIFT: howto manager. (line 623) +* BFD_RELOC_AVR_13_PCREL: howto manager. (line 1076) +* BFD_RELOC_AVR_16_PM: howto manager. (line 1080) +* BFD_RELOC_AVR_6: howto manager. (line 1147) +* BFD_RELOC_AVR_6_ADIW: howto manager. (line 1151) +* BFD_RELOC_AVR_7_PCREL: howto manager. (line 1072) +* BFD_RELOC_AVR_CALL: howto manager. (line 1139) +* BFD_RELOC_AVR_HH8_LDI: howto manager. (line 1092) +* BFD_RELOC_AVR_HH8_LDI_NEG: howto manager. (line 1107) +* BFD_RELOC_AVR_HH8_LDI_PM: howto manager. (line 1120) +* BFD_RELOC_AVR_HH8_LDI_PM_NEG: howto manager. (line 1134) +* BFD_RELOC_AVR_HI8_LDI: howto manager. (line 1088) +* BFD_RELOC_AVR_HI8_LDI_NEG: howto manager. (line 1102) +* BFD_RELOC_AVR_HI8_LDI_PM: howto manager. (line 1116) +* BFD_RELOC_AVR_HI8_LDI_PM_NEG: howto manager. (line 1129) +* BFD_RELOC_AVR_LDI: howto manager. (line 1143) +* BFD_RELOC_AVR_LO8_LDI: howto manager. (line 1084) +* BFD_RELOC_AVR_LO8_LDI_NEG: howto manager. (line 1097) +* BFD_RELOC_AVR_LO8_LDI_PM: howto manager. (line 1112) +* BFD_RELOC_AVR_LO8_LDI_PM_NEG: howto manager. (line 1125) +* bfd_reloc_code_type: howto manager. (line 10) +* BFD_RELOC_CRIS_16_GOT: howto manager. (line 1524) +* BFD_RELOC_CRIS_16_GOTPLT: howto manager. (line 1530) +* BFD_RELOC_CRIS_32_GOT: howto manager. (line 1521) +* BFD_RELOC_CRIS_32_GOTPLT: howto manager. (line 1527) +* BFD_RELOC_CRIS_32_GOTREL: howto manager. (line 1533) +* BFD_RELOC_CRIS_32_PLT_GOTREL: howto manager. (line 1536) +* BFD_RELOC_CRIS_32_PLT_PCREL: howto manager. (line 1539) +* BFD_RELOC_CRIS_BDISP8: howto manager. (line 1502) +* BFD_RELOC_CRIS_COPY: howto manager. (line 1515) +* BFD_RELOC_CRIS_GLOB_DAT: howto manager. (line 1516) +* BFD_RELOC_CRIS_JUMP_SLOT: howto manager. (line 1517) +* BFD_RELOC_CRIS_LAPCQ_OFFSET: howto manager. (line 1510) +* BFD_RELOC_CRIS_RELATIVE: howto manager. (line 1518) +* BFD_RELOC_CRIS_SIGNED_16: howto manager. (line 1508) +* BFD_RELOC_CRIS_SIGNED_6: howto manager. (line 1504) +* BFD_RELOC_CRIS_SIGNED_8: howto manager. (line 1506) +* BFD_RELOC_CRIS_UNSIGNED_16: howto manager. (line 1509) +* BFD_RELOC_CRIS_UNSIGNED_4: howto manager. (line 1511) +* BFD_RELOC_CRIS_UNSIGNED_5: howto manager. (line 1503) +* BFD_RELOC_CRIS_UNSIGNED_6: howto manager. (line 1505) +* BFD_RELOC_CRIS_UNSIGNED_8: howto manager. (line 1507) +* BFD_RELOC_CRX_ABS16: howto manager. (line 1490) +* BFD_RELOC_CRX_ABS32: howto manager. (line 1491) +* BFD_RELOC_CRX_IMM16: howto manager. (line 1495) +* BFD_RELOC_CRX_IMM32: howto manager. (line 1496) +* BFD_RELOC_CRX_NUM16: howto manager. (line 1493) +* BFD_RELOC_CRX_NUM32: howto manager. (line 1494) +* BFD_RELOC_CRX_NUM8: howto manager. (line 1492) +* BFD_RELOC_CRX_REGREL12: howto manager. (line 1486) +* BFD_RELOC_CRX_REGREL22: howto manager. (line 1487) +* BFD_RELOC_CRX_REGREL28: howto manager. (line 1488) +* BFD_RELOC_CRX_REGREL32: howto manager. (line 1489) +* BFD_RELOC_CRX_REL16: howto manager. (line 1483) +* BFD_RELOC_CRX_REL24: howto manager. (line 1484) +* BFD_RELOC_CRX_REL32: howto manager. (line 1485) +* BFD_RELOC_CRX_REL4: howto manager. (line 1480) +* BFD_RELOC_CRX_REL8: howto manager. (line 1481) +* BFD_RELOC_CRX_REL8_CMP: howto manager. (line 1482) +* BFD_RELOC_CRX_SWITCH16: howto manager. (line 1498) +* BFD_RELOC_CRX_SWITCH32: howto manager. (line 1499) +* BFD_RELOC_CRX_SWITCH8: howto manager. (line 1497) +* BFD_RELOC_CTOR: howto manager. (line 586) +* BFD_RELOC_D10V_10_PCREL_L: howto manager. (line 768) +* BFD_RELOC_D10V_10_PCREL_R: howto manager. (line 764) +* BFD_RELOC_D10V_18: howto manager. (line 773) +* BFD_RELOC_D10V_18_PCREL: howto manager. (line 776) +* BFD_RELOC_D30V_15: howto manager. (line 791) +* BFD_RELOC_D30V_15_PCREL: howto manager. (line 795) +* BFD_RELOC_D30V_15_PCREL_R: howto manager. (line 799) +* BFD_RELOC_D30V_21: howto manager. (line 804) +* BFD_RELOC_D30V_21_PCREL: howto manager. (line 808) +* BFD_RELOC_D30V_21_PCREL_R: howto manager. (line 812) +* BFD_RELOC_D30V_32: howto manager. (line 817) +* BFD_RELOC_D30V_32_PCREL: howto manager. (line 820) +* BFD_RELOC_D30V_6: howto manager. (line 779) +* BFD_RELOC_D30V_9_PCREL: howto manager. (line 782) +* BFD_RELOC_D30V_9_PCREL_R: howto manager. (line 786) +* BFD_RELOC_DLX_HI16_S: howto manager. (line 823) +* BFD_RELOC_DLX_JMP26: howto manager. (line 829) +* BFD_RELOC_DLX_LO16: howto manager. (line 826) +* BFD_RELOC_FR30_10_IN_8: howto manager. (line 1002) +* BFD_RELOC_FR30_12_PCREL: howto manager. (line 1010) +* BFD_RELOC_FR30_20: howto manager. (line 986) +* BFD_RELOC_FR30_48: howto manager. (line 983) +* BFD_RELOC_FR30_6_IN_4: howto manager. (line 990) +* BFD_RELOC_FR30_8_IN_8: howto manager. (line 994) +* BFD_RELOC_FR30_9_IN_8: howto manager. (line 998) +* BFD_RELOC_FR30_9_PCREL: howto manager. (line 1006) +* BFD_RELOC_FRV_FUNCDESC: howto manager. (line 364) +* BFD_RELOC_FRV_FUNCDESC_GOT12: howto manager. (line 365) +* BFD_RELOC_FRV_FUNCDESC_GOTHI: howto manager. (line 366) +* BFD_RELOC_FRV_FUNCDESC_GOTLO: howto manager. (line 367) +* BFD_RELOC_FRV_FUNCDESC_GOTOFF12: howto manager. (line 369) +* BFD_RELOC_FRV_FUNCDESC_GOTOFFHI: howto manager. (line 370) +* BFD_RELOC_FRV_FUNCDESC_GOTOFFLO: howto manager. (line 371) +* BFD_RELOC_FRV_FUNCDESC_VALUE: howto manager. (line 368) +* BFD_RELOC_FRV_GETTLSOFF: howto manager. (line 375) +* BFD_RELOC_FRV_GETTLSOFF_RELAX: howto manager. (line 388) +* BFD_RELOC_FRV_GOT12: howto manager. (line 361) +* BFD_RELOC_FRV_GOTHI: howto manager. (line 362) +* BFD_RELOC_FRV_GOTLO: howto manager. (line 363) +* BFD_RELOC_FRV_GOTOFF12: howto manager. (line 372) +* BFD_RELOC_FRV_GOTOFFHI: howto manager. (line 373) +* BFD_RELOC_FRV_GOTOFFLO: howto manager. (line 374) +* BFD_RELOC_FRV_GOTTLSDESC12: howto manager. (line 377) +* BFD_RELOC_FRV_GOTTLSDESCHI: howto manager. (line 378) +* BFD_RELOC_FRV_GOTTLSDESCLO: howto manager. (line 379) +* BFD_RELOC_FRV_GOTTLSOFF12: howto manager. (line 383) +* BFD_RELOC_FRV_GOTTLSOFFHI: howto manager. (line 384) +* BFD_RELOC_FRV_GOTTLSOFFLO: howto manager. (line 385) +* BFD_RELOC_FRV_GPREL12: howto manager. (line 356) +* BFD_RELOC_FRV_GPREL32: howto manager. (line 358) +* BFD_RELOC_FRV_GPRELHI: howto manager. (line 359) +* BFD_RELOC_FRV_GPRELLO: howto manager. (line 360) +* BFD_RELOC_FRV_GPRELU12: howto manager. (line 357) +* BFD_RELOC_FRV_HI16: howto manager. (line 355) +* BFD_RELOC_FRV_LABEL16: howto manager. (line 352) +* BFD_RELOC_FRV_LABEL24: howto manager. (line 353) +* BFD_RELOC_FRV_LO16: howto manager. (line 354) +* BFD_RELOC_FRV_TLSDESC_RELAX: howto manager. (line 387) +* BFD_RELOC_FRV_TLSDESC_VALUE: howto manager. (line 376) +* BFD_RELOC_FRV_TLSMOFF: howto manager. (line 390) +* BFD_RELOC_FRV_TLSMOFF12: howto manager. (line 380) +* BFD_RELOC_FRV_TLSMOFFHI: howto manager. (line 381) +* BFD_RELOC_FRV_TLSMOFFLO: howto manager. (line 382) +* BFD_RELOC_FRV_TLSOFF: howto manager. (line 386) +* BFD_RELOC_FRV_TLSOFF_RELAX: howto manager. (line 389) +* BFD_RELOC_GPREL16: howto manager. (line 106) +* BFD_RELOC_GPREL32: howto manager. (line 107) +* BFD_RELOC_H8_DIR16A8: howto manager. (line 1581) +* BFD_RELOC_H8_DIR16R8: howto manager. (line 1582) +* BFD_RELOC_H8_DIR24A8: howto manager. (line 1583) +* BFD_RELOC_H8_DIR24R8: howto manager. (line 1584) +* BFD_RELOC_H8_DIR32A16: howto manager. (line 1585) +* BFD_RELOC_HI16: howto manager. (line 289) +* BFD_RELOC_HI16_BASEREL: howto manager. (line 82) +* BFD_RELOC_HI16_GOTOFF: howto manager. (line 57) +* BFD_RELOC_HI16_PLTOFF: howto manager. (line 69) +* BFD_RELOC_HI16_S: howto manager. (line 292) +* BFD_RELOC_HI16_S_BASEREL: howto manager. (line 83) +* BFD_RELOC_HI16_S_GOTOFF: howto manager. (line 58) +* BFD_RELOC_HI16_S_PLTOFF: howto manager. (line 70) +* BFD_RELOC_HI22: howto manager. (line 101) +* BFD_RELOC_I370_D12: howto manager. (line 583) +* BFD_RELOC_I960_CALLJ: howto manager. (line 113) +* BFD_RELOC_IA64_COPY: howto manager. (line 1374) +* BFD_RELOC_IA64_DIR32LSB: howto manager. (line 1319) +* BFD_RELOC_IA64_DIR32MSB: howto manager. (line 1318) +* BFD_RELOC_IA64_DIR64LSB: howto manager. (line 1321) +* BFD_RELOC_IA64_DIR64MSB: howto manager. (line 1320) +* BFD_RELOC_IA64_DTPMOD64LSB: howto manager. (line 1384) +* BFD_RELOC_IA64_DTPMOD64MSB: howto manager. (line 1383) +* BFD_RELOC_IA64_DTPREL14: howto manager. (line 1386) +* BFD_RELOC_IA64_DTPREL22: howto manager. (line 1387) +* BFD_RELOC_IA64_DTPREL32LSB: howto manager. (line 1390) +* BFD_RELOC_IA64_DTPREL32MSB: howto manager. (line 1389) +* BFD_RELOC_IA64_DTPREL64I: howto manager. (line 1388) +* BFD_RELOC_IA64_DTPREL64LSB: howto manager. (line 1392) +* BFD_RELOC_IA64_DTPREL64MSB: howto manager. (line 1391) +* BFD_RELOC_IA64_FPTR32LSB: howto manager. (line 1336) +* BFD_RELOC_IA64_FPTR32MSB: howto manager. (line 1335) +* BFD_RELOC_IA64_FPTR64I: howto manager. (line 1334) +* BFD_RELOC_IA64_FPTR64LSB: howto manager. (line 1338) +* BFD_RELOC_IA64_FPTR64MSB: howto manager. (line 1337) +* BFD_RELOC_IA64_GPREL22: howto manager. (line 1322) +* BFD_RELOC_IA64_GPREL32LSB: howto manager. (line 1325) +* BFD_RELOC_IA64_GPREL32MSB: howto manager. (line 1324) +* BFD_RELOC_IA64_GPREL64I: howto manager. (line 1323) +* BFD_RELOC_IA64_GPREL64LSB: howto manager. (line 1327) +* BFD_RELOC_IA64_GPREL64MSB: howto manager. (line 1326) +* BFD_RELOC_IA64_IMM14: howto manager. (line 1315) +* BFD_RELOC_IA64_IMM22: howto manager. (line 1316) +* BFD_RELOC_IA64_IMM64: howto manager. (line 1317) +* BFD_RELOC_IA64_IPLTLSB: howto manager. (line 1373) +* BFD_RELOC_IA64_IPLTMSB: howto manager. (line 1372) +* BFD_RELOC_IA64_LDXMOV: howto manager. (line 1376) +* BFD_RELOC_IA64_LTOFF22: howto manager. (line 1328) +* BFD_RELOC_IA64_LTOFF22X: howto manager. (line 1375) +* BFD_RELOC_IA64_LTOFF64I: howto manager. (line 1329) +* BFD_RELOC_IA64_LTOFF_DTPMOD22: howto manager. (line 1385) +* BFD_RELOC_IA64_LTOFF_DTPREL22: howto manager. (line 1393) +* BFD_RELOC_IA64_LTOFF_FPTR22: howto manager. (line 1350) +* BFD_RELOC_IA64_LTOFF_FPTR32LSB: howto manager. (line 1353) +* BFD_RELOC_IA64_LTOFF_FPTR32MSB: howto manager. (line 1352) +* BFD_RELOC_IA64_LTOFF_FPTR64I: howto manager. (line 1351) +* BFD_RELOC_IA64_LTOFF_FPTR64LSB: howto manager. (line 1355) +* BFD_RELOC_IA64_LTOFF_FPTR64MSB: howto manager. (line 1354) +* BFD_RELOC_IA64_LTOFF_TPREL22: howto manager. (line 1382) +* BFD_RELOC_IA64_LTV32LSB: howto manager. (line 1369) +* BFD_RELOC_IA64_LTV32MSB: howto manager. (line 1368) +* BFD_RELOC_IA64_LTV64LSB: howto manager. (line 1371) +* BFD_RELOC_IA64_LTV64MSB: howto manager. (line 1370) +* BFD_RELOC_IA64_PCREL21B: howto manager. (line 1339) +* BFD_RELOC_IA64_PCREL21BI: howto manager. (line 1340) +* BFD_RELOC_IA64_PCREL21F: howto manager. (line 1342) +* BFD_RELOC_IA64_PCREL21M: howto manager. (line 1341) +* BFD_RELOC_IA64_PCREL22: howto manager. (line 1343) +* BFD_RELOC_IA64_PCREL32LSB: howto manager. (line 1347) +* BFD_RELOC_IA64_PCREL32MSB: howto manager. (line 1346) +* BFD_RELOC_IA64_PCREL60B: howto manager. (line 1344) +* BFD_RELOC_IA64_PCREL64I: howto manager. (line 1345) +* BFD_RELOC_IA64_PCREL64LSB: howto manager. (line 1349) +* BFD_RELOC_IA64_PCREL64MSB: howto manager. (line 1348) +* BFD_RELOC_IA64_PLTOFF22: howto manager. (line 1330) +* BFD_RELOC_IA64_PLTOFF64I: howto manager. (line 1331) +* BFD_RELOC_IA64_PLTOFF64LSB: howto manager. (line 1333) +* BFD_RELOC_IA64_PLTOFF64MSB: howto manager. (line 1332) +* BFD_RELOC_IA64_REL32LSB: howto manager. (line 1365) +* BFD_RELOC_IA64_REL32MSB: howto manager. (line 1364) +* BFD_RELOC_IA64_REL64LSB: howto manager. (line 1367) +* BFD_RELOC_IA64_REL64MSB: howto manager. (line 1366) +* BFD_RELOC_IA64_SECREL32LSB: howto manager. (line 1361) +* BFD_RELOC_IA64_SECREL32MSB: howto manager. (line 1360) +* BFD_RELOC_IA64_SECREL64LSB: howto manager. (line 1363) +* BFD_RELOC_IA64_SECREL64MSB: howto manager. (line 1362) +* BFD_RELOC_IA64_SEGREL32LSB: howto manager. (line 1357) +* BFD_RELOC_IA64_SEGREL32MSB: howto manager. (line 1356) +* BFD_RELOC_IA64_SEGREL64LSB: howto manager. (line 1359) +* BFD_RELOC_IA64_SEGREL64MSB: howto manager. (line 1358) +* BFD_RELOC_IA64_TPREL14: howto manager. (line 1377) +* BFD_RELOC_IA64_TPREL22: howto manager. (line 1378) +* BFD_RELOC_IA64_TPREL64I: howto manager. (line 1379) +* BFD_RELOC_IA64_TPREL64LSB: howto manager. (line 1381) +* BFD_RELOC_IA64_TPREL64MSB: howto manager. (line 1380) +* BFD_RELOC_IP2K_ADDR16CJP: howto manager. (line 1267) +* BFD_RELOC_IP2K_BANK: howto manager. (line 1264) +* BFD_RELOC_IP2K_EX8DATA: howto manager. (line 1275) +* BFD_RELOC_IP2K_FR9: howto manager. (line 1261) +* BFD_RELOC_IP2K_FR_OFFSET: howto manager. (line 1288) +* BFD_RELOC_IP2K_HI8DATA: howto manager. (line 1274) +* BFD_RELOC_IP2K_HI8INSN: howto manager. (line 1279) +* BFD_RELOC_IP2K_LO8DATA: howto manager. (line 1273) +* BFD_RELOC_IP2K_LO8INSN: howto manager. (line 1278) +* BFD_RELOC_IP2K_PAGE3: howto manager. (line 1270) +* BFD_RELOC_IP2K_PC_SKIP: howto manager. (line 1282) +* BFD_RELOC_IP2K_TEXT: howto manager. (line 1285) +* BFD_RELOC_IQ2000_OFFSET_16: howto manager. (line 1608) +* BFD_RELOC_IQ2000_OFFSET_21: howto manager. (line 1609) +* BFD_RELOC_IQ2000_UHI16: howto manager. (line 1610) +* BFD_RELOC_LO10: howto manager. (line 102) +* BFD_RELOC_LO16: howto manager. (line 298) +* BFD_RELOC_LO16_BASEREL: howto manager. (line 81) +* BFD_RELOC_LO16_GOTOFF: howto manager. (line 56) +* BFD_RELOC_LO16_PLTOFF: howto manager. (line 68) +* BFD_RELOC_M32R_10_PCREL: howto manager. (line 836) +* BFD_RELOC_M32R_18_PCREL: howto manager. (line 840) +* BFD_RELOC_M32R_24: howto manager. (line 832) +* BFD_RELOC_M32R_26_PCREL: howto manager. (line 843) +* BFD_RELOC_M32R_26_PLTREL: howto manager. (line 862) +* BFD_RELOC_M32R_COPY: howto manager. (line 863) +* BFD_RELOC_M32R_GLOB_DAT: howto manager. (line 864) +* BFD_RELOC_M32R_GOT16_HI_SLO: howto manager. (line 873) +* BFD_RELOC_M32R_GOT16_HI_ULO: howto manager. (line 872) +* BFD_RELOC_M32R_GOT16_LO: howto manager. (line 874) +* BFD_RELOC_M32R_GOT24: howto manager. (line 861) +* BFD_RELOC_M32R_GOTOFF: howto manager. (line 867) +* BFD_RELOC_M32R_GOTOFF_HI_SLO: howto manager. (line 869) +* BFD_RELOC_M32R_GOTOFF_HI_ULO: howto manager. (line 868) +* BFD_RELOC_M32R_GOTOFF_LO: howto manager. (line 870) +* BFD_RELOC_M32R_GOTPC24: howto manager. (line 871) +* BFD_RELOC_M32R_GOTPC_HI_SLO: howto manager. (line 876) +* BFD_RELOC_M32R_GOTPC_HI_ULO: howto manager. (line 875) +* BFD_RELOC_M32R_GOTPC_LO: howto manager. (line 877) +* BFD_RELOC_M32R_HI16_SLO: howto manager. (line 850) +* BFD_RELOC_M32R_HI16_ULO: howto manager. (line 846) +* BFD_RELOC_M32R_JMP_SLOT: howto manager. (line 865) +* BFD_RELOC_M32R_LO16: howto manager. (line 854) +* BFD_RELOC_M32R_RELATIVE: howto manager. (line 866) +* BFD_RELOC_M32R_SDA16: howto manager. (line 857) +* BFD_RELOC_M68HC11_24: howto manager. (line 1429) +* BFD_RELOC_M68HC11_3B: howto manager. (line 1404) +* BFD_RELOC_M68HC11_HI8: howto manager. (line 1396) +* BFD_RELOC_M68HC11_LO16: howto manager. (line 1418) +* BFD_RELOC_M68HC11_LO8: howto manager. (line 1400) +* BFD_RELOC_M68HC11_PAGE: howto manager. (line 1424) +* BFD_RELOC_M68HC11_RL_GROUP: howto manager. (line 1413) +* BFD_RELOC_M68HC11_RL_JUMP: howto manager. (line 1407) +* BFD_RELOC_M68HC12_5B: howto manager. (line 1435) +* BFD_RELOC_MCORE_PCREL_32: howto manager. (line 1017) +* BFD_RELOC_MCORE_PCREL_IMM11BY2: howto manager. (line 1015) +* BFD_RELOC_MCORE_PCREL_IMM4BY2: howto manager. (line 1016) +* BFD_RELOC_MCORE_PCREL_IMM8BY4: howto manager. (line 1014) +* BFD_RELOC_MCORE_PCREL_JSR_IMM11BY2: howto manager. (line 1018) +* BFD_RELOC_MCORE_RVA: howto manager. (line 1019) +* BFD_RELOC_MIPS16_GPREL: howto manager. (line 286) +* BFD_RELOC_MIPS16_HI16: howto manager. (line 301) +* BFD_RELOC_MIPS16_HI16_S: howto manager. (line 304) +* BFD_RELOC_MIPS16_JMP: howto manager. (line 283) +* BFD_RELOC_MIPS16_LO16: howto manager. (line 310) +* BFD_RELOC_MIPS_CALL16: howto manager. (line 317) +* BFD_RELOC_MIPS_CALL_HI16: howto manager. (line 320) +* BFD_RELOC_MIPS_CALL_LO16: howto manager. (line 321) +* BFD_RELOC_MIPS_DELETE: howto manager. (line 330) +* BFD_RELOC_MIPS_GOT16: howto manager. (line 316) +* BFD_RELOC_MIPS_GOT_DISP: howto manager. (line 325) +* BFD_RELOC_MIPS_GOT_HI16: howto manager. (line 318) +* BFD_RELOC_MIPS_GOT_LO16: howto manager. (line 319) +* BFD_RELOC_MIPS_GOT_OFST: howto manager. (line 324) +* BFD_RELOC_MIPS_GOT_PAGE: howto manager. (line 323) +* BFD_RELOC_MIPS_HIGHER: howto manager. (line 332) +* BFD_RELOC_MIPS_HIGHEST: howto manager. (line 331) +* BFD_RELOC_MIPS_INSERT_A: howto manager. (line 328) +* BFD_RELOC_MIPS_INSERT_B: howto manager. (line 329) +* BFD_RELOC_MIPS_JALR: howto manager. (line 336) +* BFD_RELOC_MIPS_JMP: howto manager. (line 279) +* BFD_RELOC_MIPS_LITERAL: howto manager. (line 313) +* BFD_RELOC_MIPS_REL16: howto manager. (line 334) +* BFD_RELOC_MIPS_RELGOT: howto manager. (line 335) +* BFD_RELOC_MIPS_SCN_DISP: howto manager. (line 333) +* BFD_RELOC_MIPS_SHIFT5: howto manager. (line 326) +* BFD_RELOC_MIPS_SHIFT6: howto manager. (line 327) +* BFD_RELOC_MIPS_SUB: howto manager. (line 322) +* BFD_RELOC_MIPS_TLS_DTPMOD32: howto manager. (line 337) +* BFD_RELOC_MIPS_TLS_DTPMOD64: howto manager. (line 339) +* BFD_RELOC_MIPS_TLS_DTPREL32: howto manager. (line 338) +* BFD_RELOC_MIPS_TLS_DTPREL64: howto manager. (line 340) +* BFD_RELOC_MIPS_TLS_DTPREL_HI16: howto manager. (line 343) +* BFD_RELOC_MIPS_TLS_DTPREL_LO16: howto manager. (line 344) +* BFD_RELOC_MIPS_TLS_GD: howto manager. (line 341) +* BFD_RELOC_MIPS_TLS_GOTTPREL: howto manager. (line 345) +* BFD_RELOC_MIPS_TLS_LDM: howto manager. (line 342) +* BFD_RELOC_MIPS_TLS_TPREL32: howto manager. (line 346) +* BFD_RELOC_MIPS_TLS_TPREL64: howto manager. (line 347) +* BFD_RELOC_MIPS_TLS_TPREL_HI16: howto manager. (line 348) +* BFD_RELOC_MIPS_TLS_TPREL_LO16: howto manager. (line 349) +* BFD_RELOC_MMIX_ADDR19: howto manager. (line 1048) +* BFD_RELOC_MMIX_ADDR27: howto manager. (line 1052) +* BFD_RELOC_MMIX_BASE_PLUS_OFFSET: howto manager. (line 1064) +* BFD_RELOC_MMIX_CBRANCH: howto manager. (line 1028) +* BFD_RELOC_MMIX_CBRANCH_1: howto manager. (line 1030) +* BFD_RELOC_MMIX_CBRANCH_2: howto manager. (line 1031) +* BFD_RELOC_MMIX_CBRANCH_3: howto manager. (line 1032) +* BFD_RELOC_MMIX_CBRANCH_J: howto manager. (line 1029) +* BFD_RELOC_MMIX_GETA: howto manager. (line 1022) +* BFD_RELOC_MMIX_GETA_1: howto manager. (line 1023) +* BFD_RELOC_MMIX_GETA_2: howto manager. (line 1024) +* BFD_RELOC_MMIX_GETA_3: howto manager. (line 1025) +* BFD_RELOC_MMIX_JMP: howto manager. (line 1042) +* BFD_RELOC_MMIX_JMP_1: howto manager. (line 1043) +* BFD_RELOC_MMIX_JMP_2: howto manager. (line 1044) +* BFD_RELOC_MMIX_JMP_3: howto manager. (line 1045) +* BFD_RELOC_MMIX_LOCAL: howto manager. (line 1068) +* BFD_RELOC_MMIX_PUSHJ: howto manager. (line 1035) +* BFD_RELOC_MMIX_PUSHJ_1: howto manager. (line 1036) +* BFD_RELOC_MMIX_PUSHJ_2: howto manager. (line 1037) +* BFD_RELOC_MMIX_PUSHJ_3: howto manager. (line 1038) +* BFD_RELOC_MMIX_PUSHJ_STUBBABLE: howto manager. (line 1039) +* BFD_RELOC_MMIX_REG: howto manager. (line 1060) +* BFD_RELOC_MMIX_REG_OR_BYTE: howto manager. (line 1056) +* BFD_RELOC_MN10300_16_PCREL: howto manager. (line 952) +* BFD_RELOC_MN10300_32_PCREL: howto manager. (line 948) +* BFD_RELOC_MN10300_COPY: howto manager. (line 408) +* BFD_RELOC_MN10300_GLOB_DAT: howto manager. (line 411) +* BFD_RELOC_MN10300_GOT16: howto manager. (line 404) +* BFD_RELOC_MN10300_GOT24: howto manager. (line 400) +* BFD_RELOC_MN10300_GOT32: howto manager. (line 396) +* BFD_RELOC_MN10300_GOTOFF24: howto manager. (line 393) +* BFD_RELOC_MN10300_JMP_SLOT: howto manager. (line 414) +* BFD_RELOC_MN10300_RELATIVE: howto manager. (line 417) +* BFD_RELOC_MSP430_10_PCREL: howto manager. (line 1599) +* BFD_RELOC_MSP430_16: howto manager. (line 1601) +* BFD_RELOC_MSP430_16_BYTE: howto manager. (line 1603) +* BFD_RELOC_MSP430_16_PCREL: howto manager. (line 1600) +* BFD_RELOC_MSP430_16_PCREL_BYTE: howto manager. (line 1602) +* BFD_RELOC_MSP430_2X_PCREL: howto manager. (line 1604) +* BFD_RELOC_MSP430_RL_PCREL: howto manager. (line 1605) +* BFD_RELOC_NONE: howto manager. (line 116) +* BFD_RELOC_NS32K_DISP_16: howto manager. (line 467) +* BFD_RELOC_NS32K_DISP_16_PCREL: howto manager. (line 470) +* BFD_RELOC_NS32K_DISP_32: howto manager. (line 468) +* BFD_RELOC_NS32K_DISP_32_PCREL: howto manager. (line 471) +* BFD_RELOC_NS32K_DISP_8: howto manager. (line 466) +* BFD_RELOC_NS32K_DISP_8_PCREL: howto manager. (line 469) +* BFD_RELOC_NS32K_IMM_16: howto manager. (line 461) +* BFD_RELOC_NS32K_IMM_16_PCREL: howto manager. (line 464) +* BFD_RELOC_NS32K_IMM_32: howto manager. (line 462) +* BFD_RELOC_NS32K_IMM_32_PCREL: howto manager. (line 465) +* BFD_RELOC_NS32K_IMM_8: howto manager. (line 460) +* BFD_RELOC_NS32K_IMM_8_PCREL: howto manager. (line 463) +* BFD_RELOC_OPENRISC_ABS_26: howto manager. (line 1577) +* BFD_RELOC_OPENRISC_REL_26: howto manager. (line 1578) +* BFD_RELOC_PDP11_DISP_6_PCREL: howto manager. (line 475) +* BFD_RELOC_PDP11_DISP_8_PCREL: howto manager. (line 474) +* BFD_RELOC_PJ_CODE_DIR16: howto manager. (line 480) +* BFD_RELOC_PJ_CODE_DIR32: howto manager. (line 481) +* BFD_RELOC_PJ_CODE_HI16: howto manager. (line 478) +* BFD_RELOC_PJ_CODE_LO16: howto manager. (line 479) +* BFD_RELOC_PJ_CODE_REL16: howto manager. (line 482) +* BFD_RELOC_PJ_CODE_REL32: howto manager. (line 483) +* BFD_RELOC_PPC64_ADDR16_DS: howto manager. (line 528) +* BFD_RELOC_PPC64_ADDR16_LO_DS: howto manager. (line 529) +* BFD_RELOC_PPC64_DTPREL16_DS: howto manager. (line 575) +* BFD_RELOC_PPC64_DTPREL16_HIGHER: howto manager. (line 577) +* BFD_RELOC_PPC64_DTPREL16_HIGHERA: howto manager. (line 578) +* BFD_RELOC_PPC64_DTPREL16_HIGHEST: howto manager. (line 579) +* BFD_RELOC_PPC64_DTPREL16_HIGHESTA: howto manager. (line 580) +* BFD_RELOC_PPC64_DTPREL16_LO_DS: howto manager. (line 576) +* BFD_RELOC_PPC64_GOT16_DS: howto manager. (line 530) +* BFD_RELOC_PPC64_GOT16_LO_DS: howto manager. (line 531) +* BFD_RELOC_PPC64_HIGHER: howto manager. (line 516) +* BFD_RELOC_PPC64_HIGHER_S: howto manager. (line 517) +* BFD_RELOC_PPC64_HIGHEST: howto manager. (line 518) +* BFD_RELOC_PPC64_HIGHEST_S: howto manager. (line 519) +* BFD_RELOC_PPC64_PLT16_LO_DS: howto manager. (line 532) +* BFD_RELOC_PPC64_PLTGOT16: howto manager. (line 524) +* BFD_RELOC_PPC64_PLTGOT16_DS: howto manager. (line 537) +* BFD_RELOC_PPC64_PLTGOT16_HA: howto manager. (line 527) +* BFD_RELOC_PPC64_PLTGOT16_HI: howto manager. (line 526) +* BFD_RELOC_PPC64_PLTGOT16_LO: howto manager. (line 525) +* BFD_RELOC_PPC64_PLTGOT16_LO_DS: howto manager. (line 538) +* BFD_RELOC_PPC64_SECTOFF_DS: howto manager. (line 533) +* BFD_RELOC_PPC64_SECTOFF_LO_DS: howto manager. (line 534) +* BFD_RELOC_PPC64_TOC: howto manager. (line 523) +* BFD_RELOC_PPC64_TOC16_DS: howto manager. (line 535) +* BFD_RELOC_PPC64_TOC16_HA: howto manager. (line 522) +* BFD_RELOC_PPC64_TOC16_HI: howto manager. (line 521) +* BFD_RELOC_PPC64_TOC16_LO: howto manager. (line 520) +* BFD_RELOC_PPC64_TOC16_LO_DS: howto manager. (line 536) +* BFD_RELOC_PPC64_TPREL16_DS: howto manager. (line 569) +* BFD_RELOC_PPC64_TPREL16_HIGHER: howto manager. (line 571) +* BFD_RELOC_PPC64_TPREL16_HIGHERA: howto manager. (line 572) +* BFD_RELOC_PPC64_TPREL16_HIGHEST: howto manager. (line 573) +* BFD_RELOC_PPC64_TPREL16_HIGHESTA: howto manager. (line 574) +* BFD_RELOC_PPC64_TPREL16_LO_DS: howto manager. (line 570) +* BFD_RELOC_PPC_B16: howto manager. (line 489) +* BFD_RELOC_PPC_B16_BRNTAKEN: howto manager. (line 491) +* BFD_RELOC_PPC_B16_BRTAKEN: howto manager. (line 490) +* BFD_RELOC_PPC_B26: howto manager. (line 486) +* BFD_RELOC_PPC_BA16: howto manager. (line 492) +* BFD_RELOC_PPC_BA16_BRNTAKEN: howto manager. (line 494) +* BFD_RELOC_PPC_BA16_BRTAKEN: howto manager. (line 493) +* BFD_RELOC_PPC_BA26: howto manager. (line 487) +* BFD_RELOC_PPC_COPY: howto manager. (line 495) +* BFD_RELOC_PPC_DTPMOD: howto manager. (line 542) +* BFD_RELOC_PPC_DTPREL: howto manager. (line 552) +* BFD_RELOC_PPC_DTPREL16: howto manager. (line 548) +* BFD_RELOC_PPC_DTPREL16_HA: howto manager. (line 551) +* BFD_RELOC_PPC_DTPREL16_HI: howto manager. (line 550) +* BFD_RELOC_PPC_DTPREL16_LO: howto manager. (line 549) +* BFD_RELOC_PPC_EMB_BIT_FLD: howto manager. (line 514) +* BFD_RELOC_PPC_EMB_MRKREF: howto manager. (line 509) +* BFD_RELOC_PPC_EMB_NADDR16: howto manager. (line 501) +* BFD_RELOC_PPC_EMB_NADDR16_HA: howto manager. (line 504) +* BFD_RELOC_PPC_EMB_NADDR16_HI: howto manager. (line 503) +* BFD_RELOC_PPC_EMB_NADDR16_LO: howto manager. (line 502) +* BFD_RELOC_PPC_EMB_NADDR32: howto manager. (line 500) +* BFD_RELOC_PPC_EMB_RELSDA: howto manager. (line 515) +* BFD_RELOC_PPC_EMB_RELSEC16: howto manager. (line 510) +* BFD_RELOC_PPC_EMB_RELST_HA: howto manager. (line 513) +* BFD_RELOC_PPC_EMB_RELST_HI: howto manager. (line 512) +* BFD_RELOC_PPC_EMB_RELST_LO: howto manager. (line 511) +* BFD_RELOC_PPC_EMB_SDA21: howto manager. (line 508) +* BFD_RELOC_PPC_EMB_SDA2I16: howto manager. (line 506) +* BFD_RELOC_PPC_EMB_SDA2REL: howto manager. (line 507) +* BFD_RELOC_PPC_EMB_SDAI16: howto manager. (line 505) +* BFD_RELOC_PPC_GLOB_DAT: howto manager. (line 496) +* BFD_RELOC_PPC_GOT_DTPREL16: howto manager. (line 565) +* BFD_RELOC_PPC_GOT_DTPREL16_HA: howto manager. (line 568) +* BFD_RELOC_PPC_GOT_DTPREL16_HI: howto manager. (line 567) +* BFD_RELOC_PPC_GOT_DTPREL16_LO: howto manager. (line 566) +* BFD_RELOC_PPC_GOT_TLSGD16: howto manager. (line 553) +* BFD_RELOC_PPC_GOT_TLSGD16_HA: howto manager. (line 556) +* BFD_RELOC_PPC_GOT_TLSGD16_HI: howto manager. (line 555) +* BFD_RELOC_PPC_GOT_TLSGD16_LO: howto manager. (line 554) +* BFD_RELOC_PPC_GOT_TLSLD16: howto manager. (line 557) +* BFD_RELOC_PPC_GOT_TLSLD16_HA: howto manager. (line 560) +* BFD_RELOC_PPC_GOT_TLSLD16_HI: howto manager. (line 559) +* BFD_RELOC_PPC_GOT_TLSLD16_LO: howto manager. (line 558) +* BFD_RELOC_PPC_GOT_TPREL16: howto manager. (line 561) +* BFD_RELOC_PPC_GOT_TPREL16_HA: howto manager. (line 564) +* BFD_RELOC_PPC_GOT_TPREL16_HI: howto manager. (line 563) +* BFD_RELOC_PPC_GOT_TPREL16_LO: howto manager. (line 562) +* BFD_RELOC_PPC_JMP_SLOT: howto manager. (line 497) +* BFD_RELOC_PPC_LOCAL24PC: howto manager. (line 499) +* BFD_RELOC_PPC_RELATIVE: howto manager. (line 498) +* BFD_RELOC_PPC_TLS: howto manager. (line 541) +* BFD_RELOC_PPC_TOC16: howto manager. (line 488) +* BFD_RELOC_PPC_TPREL: howto manager. (line 547) +* BFD_RELOC_PPC_TPREL16: howto manager. (line 543) +* BFD_RELOC_PPC_TPREL16_HA: howto manager. (line 546) +* BFD_RELOC_PPC_TPREL16_HI: howto manager. (line 545) +* BFD_RELOC_PPC_TPREL16_LO: howto manager. (line 544) +* BFD_RELOC_RVA: howto manager. (line 85) +* BFD_RELOC_SH_ALIGN: howto manager. (line 677) +* BFD_RELOC_SH_CODE: howto manager. (line 678) +* BFD_RELOC_SH_COPY: howto manager. (line 683) +* BFD_RELOC_SH_COPY64: howto manager. (line 708) +* BFD_RELOC_SH_COUNT: howto manager. (line 676) +* BFD_RELOC_SH_DATA: howto manager. (line 679) +* BFD_RELOC_SH_DISP12: howto manager. (line 659) +* BFD_RELOC_SH_DISP12BY2: howto manager. (line 660) +* BFD_RELOC_SH_DISP12BY4: howto manager. (line 661) +* BFD_RELOC_SH_DISP12BY8: howto manager. (line 662) +* BFD_RELOC_SH_DISP20: howto manager. (line 663) +* BFD_RELOC_SH_DISP20BY8: howto manager. (line 664) +* BFD_RELOC_SH_GLOB_DAT: howto manager. (line 684) +* BFD_RELOC_SH_GLOB_DAT64: howto manager. (line 709) +* BFD_RELOC_SH_GOT10BY4: howto manager. (line 712) +* BFD_RELOC_SH_GOT10BY8: howto manager. (line 713) +* BFD_RELOC_SH_GOT_HI16: howto manager. (line 691) +* BFD_RELOC_SH_GOT_LOW16: howto manager. (line 688) +* BFD_RELOC_SH_GOT_MEDHI16: howto manager. (line 690) +* BFD_RELOC_SH_GOT_MEDLOW16: howto manager. (line 689) +* BFD_RELOC_SH_GOTOFF_HI16: howto manager. (line 703) +* BFD_RELOC_SH_GOTOFF_LOW16: howto manager. (line 700) +* BFD_RELOC_SH_GOTOFF_MEDHI16: howto manager. (line 702) +* BFD_RELOC_SH_GOTOFF_MEDLOW16: howto manager. (line 701) +* BFD_RELOC_SH_GOTPC: howto manager. (line 687) +* BFD_RELOC_SH_GOTPC_HI16: howto manager. (line 707) +* BFD_RELOC_SH_GOTPC_LOW16: howto manager. (line 704) +* BFD_RELOC_SH_GOTPC_MEDHI16: howto manager. (line 706) +* BFD_RELOC_SH_GOTPC_MEDLOW16: howto manager. (line 705) +* BFD_RELOC_SH_GOTPLT10BY4: howto manager. (line 714) +* BFD_RELOC_SH_GOTPLT10BY8: howto manager. (line 715) +* BFD_RELOC_SH_GOTPLT32: howto manager. (line 716) +* BFD_RELOC_SH_GOTPLT_HI16: howto manager. (line 695) +* BFD_RELOC_SH_GOTPLT_LOW16: howto manager. (line 692) +* BFD_RELOC_SH_GOTPLT_MEDHI16: howto manager. (line 694) +* BFD_RELOC_SH_GOTPLT_MEDLOW16: howto manager. (line 693) +* BFD_RELOC_SH_IMM3: howto manager. (line 657) +* BFD_RELOC_SH_IMM3U: howto manager. (line 658) +* BFD_RELOC_SH_IMM4: howto manager. (line 665) +* BFD_RELOC_SH_IMM4BY2: howto manager. (line 666) +* BFD_RELOC_SH_IMM4BY4: howto manager. (line 667) +* BFD_RELOC_SH_IMM8: howto manager. (line 668) +* BFD_RELOC_SH_IMM8BY2: howto manager. (line 669) +* BFD_RELOC_SH_IMM8BY4: howto manager. (line 670) +* BFD_RELOC_SH_IMM_HI16: howto manager. (line 734) +* BFD_RELOC_SH_IMM_HI16_PCREL: howto manager. (line 735) +* BFD_RELOC_SH_IMM_LOW16: howto manager. (line 728) +* BFD_RELOC_SH_IMM_LOW16_PCREL: howto manager. (line 729) +* BFD_RELOC_SH_IMM_MEDHI16: howto manager. (line 732) +* BFD_RELOC_SH_IMM_MEDHI16_PCREL: howto manager. (line 733) +* BFD_RELOC_SH_IMM_MEDLOW16: howto manager. (line 730) +* BFD_RELOC_SH_IMM_MEDLOW16_PCREL: howto manager. (line 731) +* BFD_RELOC_SH_IMMS10: howto manager. (line 722) +* BFD_RELOC_SH_IMMS10BY2: howto manager. (line 723) +* BFD_RELOC_SH_IMMS10BY4: howto manager. (line 724) +* BFD_RELOC_SH_IMMS10BY8: howto manager. (line 725) +* BFD_RELOC_SH_IMMS16: howto manager. (line 726) +* BFD_RELOC_SH_IMMS6: howto manager. (line 719) +* BFD_RELOC_SH_IMMS6BY32: howto manager. (line 720) +* BFD_RELOC_SH_IMMU16: howto manager. (line 727) +* BFD_RELOC_SH_IMMU5: howto manager. (line 718) +* BFD_RELOC_SH_IMMU6: howto manager. (line 721) +* BFD_RELOC_SH_JMP_SLOT: howto manager. (line 685) +* BFD_RELOC_SH_JMP_SLOT64: howto manager. (line 710) +* BFD_RELOC_SH_LABEL: howto manager. (line 680) +* BFD_RELOC_SH_LOOP_END: howto manager. (line 682) +* BFD_RELOC_SH_LOOP_START: howto manager. (line 681) +* BFD_RELOC_SH_PCDISP12BY2: howto manager. (line 656) +* BFD_RELOC_SH_PCDISP8BY2: howto manager. (line 655) +* BFD_RELOC_SH_PCRELIMM8BY2: howto manager. (line 671) +* BFD_RELOC_SH_PCRELIMM8BY4: howto manager. (line 672) +* BFD_RELOC_SH_PLT_HI16: howto manager. (line 699) +* BFD_RELOC_SH_PLT_LOW16: howto manager. (line 696) +* BFD_RELOC_SH_PLT_MEDHI16: howto manager. (line 698) +* BFD_RELOC_SH_PLT_MEDLOW16: howto manager. (line 697) +* BFD_RELOC_SH_PT_16: howto manager. (line 736) +* BFD_RELOC_SH_RELATIVE: howto manager. (line 686) +* BFD_RELOC_SH_RELATIVE64: howto manager. (line 711) +* BFD_RELOC_SH_SHMEDIA_CODE: howto manager. (line 717) +* BFD_RELOC_SH_SWITCH16: howto manager. (line 673) +* BFD_RELOC_SH_SWITCH32: howto manager. (line 674) +* BFD_RELOC_SH_TLS_DTPMOD32: howto manager. (line 742) +* BFD_RELOC_SH_TLS_DTPOFF32: howto manager. (line 743) +* BFD_RELOC_SH_TLS_GD_32: howto manager. (line 737) +* BFD_RELOC_SH_TLS_IE_32: howto manager. (line 740) +* BFD_RELOC_SH_TLS_LD_32: howto manager. (line 738) +* BFD_RELOC_SH_TLS_LDO_32: howto manager. (line 739) +* BFD_RELOC_SH_TLS_LE_32: howto manager. (line 741) +* BFD_RELOC_SH_TLS_TPOFF32: howto manager. (line 744) +* BFD_RELOC_SH_USES: howto manager. (line 675) +* BFD_RELOC_SPARC13: howto manager. (line 119) +* BFD_RELOC_SPARC22: howto manager. (line 118) +* BFD_RELOC_SPARC_10: howto manager. (line 141) +* BFD_RELOC_SPARC_11: howto manager. (line 142) +* BFD_RELOC_SPARC_5: howto manager. (line 154) +* BFD_RELOC_SPARC_6: howto manager. (line 153) +* BFD_RELOC_SPARC_64: howto manager. (line 140) +* BFD_RELOC_SPARC_7: howto manager. (line 152) +* BFD_RELOC_SPARC_BASE13: howto manager. (line 136) +* BFD_RELOC_SPARC_BASE22: howto manager. (line 137) +* BFD_RELOC_SPARC_COPY: howto manager. (line 126) +* BFD_RELOC_SPARC_DISP64: howto manager. (line 155) +* BFD_RELOC_SPARC_GLOB_DAT: howto manager. (line 127) +* BFD_RELOC_SPARC_GOT10: howto manager. (line 120) +* BFD_RELOC_SPARC_GOT13: howto manager. (line 121) +* BFD_RELOC_SPARC_GOT22: howto manager. (line 122) +* BFD_RELOC_SPARC_H44: howto manager. (line 160) +* BFD_RELOC_SPARC_HH22: howto manager. (line 144) +* BFD_RELOC_SPARC_HIX22: howto manager. (line 158) +* BFD_RELOC_SPARC_HM10: howto manager. (line 145) +* BFD_RELOC_SPARC_JMP_SLOT: howto manager. (line 128) +* BFD_RELOC_SPARC_L44: howto manager. (line 162) +* BFD_RELOC_SPARC_LM22: howto manager. (line 146) +* BFD_RELOC_SPARC_LOX10: howto manager. (line 159) +* BFD_RELOC_SPARC_M44: howto manager. (line 161) +* BFD_RELOC_SPARC_OLO10: howto manager. (line 143) +* BFD_RELOC_SPARC_PC10: howto manager. (line 123) +* BFD_RELOC_SPARC_PC22: howto manager. (line 124) +* BFD_RELOC_SPARC_PC_HH22: howto manager. (line 147) +* BFD_RELOC_SPARC_PC_HM10: howto manager. (line 148) +* BFD_RELOC_SPARC_PC_LM22: howto manager. (line 149) +* BFD_RELOC_SPARC_PLT32: howto manager. (line 156) +* BFD_RELOC_SPARC_PLT64: howto manager. (line 157) +* BFD_RELOC_SPARC_REGISTER: howto manager. (line 163) +* BFD_RELOC_SPARC_RELATIVE: howto manager. (line 129) +* BFD_RELOC_SPARC_REV32: howto manager. (line 166) +* BFD_RELOC_SPARC_TLS_DTPMOD32: howto manager. (line 187) +* BFD_RELOC_SPARC_TLS_DTPMOD64: howto manager. (line 188) +* BFD_RELOC_SPARC_TLS_DTPOFF32: howto manager. (line 189) +* BFD_RELOC_SPARC_TLS_DTPOFF64: howto manager. (line 190) +* BFD_RELOC_SPARC_TLS_GD_ADD: howto manager. (line 171) +* BFD_RELOC_SPARC_TLS_GD_CALL: howto manager. (line 172) +* BFD_RELOC_SPARC_TLS_GD_HI22: howto manager. (line 169) +* BFD_RELOC_SPARC_TLS_GD_LO10: howto manager. (line 170) +* BFD_RELOC_SPARC_TLS_IE_ADD: howto manager. (line 184) +* BFD_RELOC_SPARC_TLS_IE_HI22: howto manager. (line 180) +* BFD_RELOC_SPARC_TLS_IE_LD: howto manager. (line 182) +* BFD_RELOC_SPARC_TLS_IE_LDX: howto manager. (line 183) +* BFD_RELOC_SPARC_TLS_IE_LO10: howto manager. (line 181) +* BFD_RELOC_SPARC_TLS_LDM_ADD: howto manager. (line 175) +* BFD_RELOC_SPARC_TLS_LDM_CALL: howto manager. (line 176) +* BFD_RELOC_SPARC_TLS_LDM_HI22: howto manager. (line 173) +* BFD_RELOC_SPARC_TLS_LDM_LO10: howto manager. (line 174) +* BFD_RELOC_SPARC_TLS_LDO_ADD: howto manager. (line 179) +* BFD_RELOC_SPARC_TLS_LDO_HIX22: howto manager. (line 177) +* BFD_RELOC_SPARC_TLS_LDO_LOX10: howto manager. (line 178) +* BFD_RELOC_SPARC_TLS_LE_HIX22: howto manager. (line 185) +* BFD_RELOC_SPARC_TLS_LE_LOX10: howto manager. (line 186) +* BFD_RELOC_SPARC_TLS_TPOFF32: howto manager. (line 191) +* BFD_RELOC_SPARC_TLS_TPOFF64: howto manager. (line 192) +* BFD_RELOC_SPARC_UA16: howto manager. (line 130) +* BFD_RELOC_SPARC_UA32: howto manager. (line 131) +* BFD_RELOC_SPARC_UA64: howto manager. (line 132) +* BFD_RELOC_SPARC_WDISP16: howto manager. (line 150) +* BFD_RELOC_SPARC_WDISP19: howto manager. (line 151) +* BFD_RELOC_SPARC_WDISP22: howto manager. (line 117) +* BFD_RELOC_SPARC_WPLT30: howto manager. (line 125) +* BFD_RELOC_THUMB_PCREL_BLX: howto manager. (line 601) +* BFD_RELOC_THUMB_PCREL_BRANCH12: howto manager. (line 749) +* BFD_RELOC_THUMB_PCREL_BRANCH23: howto manager. (line 750) +* BFD_RELOC_THUMB_PCREL_BRANCH9: howto manager. (line 748) +* BFD_RELOC_TIC30_LDP: howto manager. (line 956) +* BFD_RELOC_TIC54X_16_OF_23: howto manager. (line 974) +* BFD_RELOC_TIC54X_23: howto manager. (line 971) +* BFD_RELOC_TIC54X_MS7_OF_23: howto manager. (line 979) +* BFD_RELOC_TIC54X_PARTLS7: howto manager. (line 961) +* BFD_RELOC_TIC54X_PARTMS9: howto manager. (line 966) +* bfd_reloc_type_lookup: howto manager. (line 1693) +* BFD_RELOC_V850_22_PCREL: howto manager. (line 883) +* BFD_RELOC_V850_9_PCREL: howto manager. (line 880) +* BFD_RELOC_V850_ALIGN: howto manager. (line 941) +* BFD_RELOC_V850_CALLT_16_16_OFFSET: howto manager. (line 932) +* BFD_RELOC_V850_CALLT_6_7_OFFSET: howto manager. (line 929) +* BFD_RELOC_V850_LO16_SPLIT_OFFSET: howto manager. (line 944) +* BFD_RELOC_V850_LONGCALL: howto manager. (line 935) +* BFD_RELOC_V850_LONGJUMP: howto manager. (line 938) +* BFD_RELOC_V850_SDA_15_16_OFFSET: howto manager. (line 889) +* BFD_RELOC_V850_SDA_16_16_OFFSET: howto manager. (line 886) +* BFD_RELOC_V850_SDA_16_16_SPLIT_OFFSET: howto manager. (line 921) +* BFD_RELOC_V850_TDA_16_16_OFFSET: howto manager. (line 911) +* BFD_RELOC_V850_TDA_4_4_OFFSET: howto manager. (line 918) +* BFD_RELOC_V850_TDA_4_5_OFFSET: howto manager. (line 914) +* BFD_RELOC_V850_TDA_6_8_OFFSET: howto manager. (line 900) +* BFD_RELOC_V850_TDA_7_7_OFFSET: howto manager. (line 908) +* BFD_RELOC_V850_TDA_7_8_OFFSET: howto manager. (line 904) +* BFD_RELOC_V850_ZDA_15_16_OFFSET: howto manager. (line 896) +* BFD_RELOC_V850_ZDA_16_16_OFFSET: howto manager. (line 893) +* BFD_RELOC_V850_ZDA_16_16_SPLIT_OFFSET: howto manager. (line 925) +* BFD_RELOC_VAX_GLOB_DAT: howto manager. (line 1594) +* BFD_RELOC_VAX_JMP_SLOT: howto manager. (line 1595) +* BFD_RELOC_VAX_RELATIVE: howto manager. (line 1596) +* BFD_RELOC_VPE4KMATH_DATA: howto manager. (line 1291) +* BFD_RELOC_VPE4KMATH_INSN: howto manager. (line 1292) +* BFD_RELOC_VTABLE_ENTRY: howto manager. (line 1296) +* BFD_RELOC_VTABLE_INHERIT: howto manager. (line 1295) +* BFD_RELOC_X86_64_32S: howto manager. (line 449) +* BFD_RELOC_X86_64_COPY: howto manager. (line 444) +* BFD_RELOC_X86_64_DTPMOD64: howto manager. (line 450) +* BFD_RELOC_X86_64_DTPOFF32: howto manager. (line 455) +* BFD_RELOC_X86_64_DTPOFF64: howto manager. (line 451) +* BFD_RELOC_X86_64_GLOB_DAT: howto manager. (line 445) +* BFD_RELOC_X86_64_GOT32: howto manager. (line 442) +* BFD_RELOC_X86_64_GOTPCREL: howto manager. (line 448) +* BFD_RELOC_X86_64_GOTTPOFF: howto manager. (line 456) +* BFD_RELOC_X86_64_JUMP_SLOT: howto manager. (line 446) +* BFD_RELOC_X86_64_PLT32: howto manager. (line 443) +* BFD_RELOC_X86_64_RELATIVE: howto manager. (line 447) +* BFD_RELOC_X86_64_TLSGD: howto manager. (line 453) +* BFD_RELOC_X86_64_TLSLD: howto manager. (line 454) +* BFD_RELOC_X86_64_TPOFF32: howto manager. (line 457) +* BFD_RELOC_X86_64_TPOFF64: howto manager. (line 452) +* BFD_RELOC_XSTORMY16_12: howto manager. (line 1589) +* BFD_RELOC_XSTORMY16_24: howto manager. (line 1590) +* BFD_RELOC_XSTORMY16_FPTR16: howto manager. (line 1591) +* BFD_RELOC_XSTORMY16_REL_12: howto manager. (line 1588) +* BFD_RELOC_XTENSA_ASM_EXPAND: howto manager. (line 1682) +* BFD_RELOC_XTENSA_ASM_SIMPLIFY: howto manager. (line 1687) +* BFD_RELOC_XTENSA_DIFF16: howto manager. (line 1629) +* BFD_RELOC_XTENSA_DIFF32: howto manager. (line 1630) +* BFD_RELOC_XTENSA_DIFF8: howto manager. (line 1628) +* BFD_RELOC_XTENSA_GLOB_DAT: howto manager. (line 1618) +* BFD_RELOC_XTENSA_JMP_SLOT: howto manager. (line 1619) +* BFD_RELOC_XTENSA_OP0: howto manager. (line 1676) +* BFD_RELOC_XTENSA_OP1: howto manager. (line 1677) +* BFD_RELOC_XTENSA_OP2: howto manager. (line 1678) +* BFD_RELOC_XTENSA_PLT: howto manager. (line 1623) +* BFD_RELOC_XTENSA_RELATIVE: howto manager. (line 1620) +* BFD_RELOC_XTENSA_RTLD: howto manager. (line 1613) +* BFD_RELOC_XTENSA_SLOT0_ALT: howto manager. (line 1658) +* BFD_RELOC_XTENSA_SLOT0_OP: howto manager. (line 1638) +* BFD_RELOC_XTENSA_SLOT10_ALT: howto manager. (line 1668) +* BFD_RELOC_XTENSA_SLOT10_OP: howto manager. (line 1648) +* BFD_RELOC_XTENSA_SLOT11_ALT: howto manager. (line 1669) +* BFD_RELOC_XTENSA_SLOT11_OP: howto manager. (line 1649) +* BFD_RELOC_XTENSA_SLOT12_ALT: howto manager. (line 1670) +* BFD_RELOC_XTENSA_SLOT12_OP: howto manager. (line 1650) +* BFD_RELOC_XTENSA_SLOT13_ALT: howto manager. (line 1671) +* BFD_RELOC_XTENSA_SLOT13_OP: howto manager. (line 1651) +* BFD_RELOC_XTENSA_SLOT14_ALT: howto manager. (line 1672) +* BFD_RELOC_XTENSA_SLOT14_OP: howto manager. (line 1652) +* BFD_RELOC_XTENSA_SLOT1_ALT: howto manager. (line 1659) +* BFD_RELOC_XTENSA_SLOT1_OP: howto manager. (line 1639) +* BFD_RELOC_XTENSA_SLOT2_ALT: howto manager. (line 1660) +* BFD_RELOC_XTENSA_SLOT2_OP: howto manager. (line 1640) +* BFD_RELOC_XTENSA_SLOT3_ALT: howto manager. (line 1661) +* BFD_RELOC_XTENSA_SLOT3_OP: howto manager. (line 1641) +* BFD_RELOC_XTENSA_SLOT4_ALT: howto manager. (line 1662) +* BFD_RELOC_XTENSA_SLOT4_OP: howto manager. (line 1642) +* BFD_RELOC_XTENSA_SLOT5_ALT: howto manager. (line 1663) +* BFD_RELOC_XTENSA_SLOT5_OP: howto manager. (line 1643) +* BFD_RELOC_XTENSA_SLOT6_ALT: howto manager. (line 1664) +* BFD_RELOC_XTENSA_SLOT6_OP: howto manager. (line 1644) +* BFD_RELOC_XTENSA_SLOT7_ALT: howto manager. (line 1665) +* BFD_RELOC_XTENSA_SLOT7_OP: howto manager. (line 1645) +* BFD_RELOC_XTENSA_SLOT8_ALT: howto manager. (line 1666) +* BFD_RELOC_XTENSA_SLOT8_OP: howto manager. (line 1646) +* BFD_RELOC_XTENSA_SLOT9_ALT: howto manager. (line 1667) +* BFD_RELOC_XTENSA_SLOT9_OP: howto manager. (line 1647) +* bfd_scan_arch: Architectures. (line 369) +* bfd_scan_vma: BFD front end. (line 420) +* bfd_seach_for_target: bfd_target. (line 445) +* bfd_section_already_linked: Writing the symbol table. + (line 55) +* bfd_section_list_clear: section prototypes. (line 8) +* bfd_sections_find_if: section prototypes. (line 145) +* bfd_set_arch_info: Architectures. (line 410) +* bfd_set_archive_head: Archives. (line 66) +* bfd_set_default_target: bfd_target. (line 410) +* bfd_set_error: BFD front end. (line 235) +* bfd_set_error_handler: BFD front end. (line 275) +* bfd_set_error_program_name: BFD front end. (line 284) +* bfd_set_file_flags: BFD front end. (line 340) +* bfd_set_format: Formats. (line 65) +* bfd_set_gp_size: BFD front end. (line 410) +* bfd_set_private_flags: BFD front end. (line 487) +* bfd_set_reloc: BFD front end. (line 330) +* bfd_set_section_contents: section prototypes. (line 176) +* bfd_set_section_flags: section prototypes. (line 109) +* bfd_set_section_size: section prototypes. (line 162) +* bfd_set_start_address: BFD front end. (line 389) +* bfd_set_symtab: symbol handling functions. + (line 60) +* bfd_symbol_info: symbol handling functions. + (line 130) +* bfd_target_list: bfd_target. (line 436) +* bfd_write_bigendian_4byte_int: Internal. (line 10) +* bfd_zalloc: Opening and Closing. + (line 188) +* coff_symbol_type: coff. (line 186) +* core_file_matches_executable_p: Core Files. (line 27) +* find_separate_debug_file: Opening and Closing. + (line 230) +* get_debug_link_info: Opening and Closing. + (line 211) +* Hash tables: Hash Tables. (line 6) +* internal object-file format: Canonical format. (line 11) +* Linker: Linker Functions. (line 6) +* Other functions: BFD front end. (line 502) +* separate_debug_file_exists: Opening and Closing. + (line 221) +* struct bfd_iovec: BFD front end. (line 646) +* target vector (_bfd_final_link): Performing the Final Link. + (line 6) +* target vector (_bfd_link_add_symbols): Adding Symbols to the Hash Table. + (line 6) +* target vector (_bfd_link_hash_table_create): Creating a Linker Hash Table. + (line 6) +* The HOWTO Macro: typedef arelent. (line 290) +* what is it?: Overview. (line 6) + + |