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Diffstat (limited to 'bfd/bfd.c')
| -rw-r--r-- | bfd/bfd.c | 1252 |
1 files changed, 0 insertions, 1252 deletions
diff --git a/bfd/bfd.c b/bfd/bfd.c deleted file mode 100644 index 0c2cc0cbef9..00000000000 --- a/bfd/bfd.c +++ /dev/null @@ -1,1252 +0,0 @@ -/* Generic BFD library interface and support routines. - Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, - 2000, 2001 - Free Software Foundation, Inc. - Written by Cygnus Support. - -This file is part of BFD, the Binary File Descriptor library. - -This program is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2 of the License, or -(at your option) any later version. - -This program is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with this program; if not, write to the Free Software -Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -/* -SECTION - <<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. - -CODE_FRAGMENT -. -.struct _bfd -.{ -. {* The filename the application opened the BFD with. *} -. CONST char *filename; -. -. {* A pointer to the target jump table. *} -. const struct bfd_target *xvec; -. -. {* To avoid dragging too many header files into every file that -. includes `<<bfd.h>>', IOSTREAM has been declared as a "char -. *", and MTIME as a "long". Their correct types, to which they -. are cast when used, are "FILE *" and "time_t". The iostream -. is the result of an fopen on the filename. However, if the -. BFD_IN_MEMORY flag is set, then iostream is actually a pointer -. to a bfd_in_memory struct. *} -. PTR iostream; -. -. {* Is the file descriptor being cached? That is, can it be closed as -. needed, and re-opened when accessed later? *} -. -. 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. *} -. -. 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: *} -. -. file_ptr where; -. -. {* and here: (``once'' means at least once) *} -. -. boolean opened_once; -. -. {* Set if we have a locally maintained mtime value, rather than -. getting it from the file each time: *} -. -. 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 the BFD was opened with*} -. -. 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. *} -. -. file_ptr origin; -. -. {* Remember when output has begun, to stop strange things -. from happening. *} -. boolean output_has_begun; -. -. {* Pointer to linked list of sections*} -. struct sec *sections; -. -. {* 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 symbol_cache_entry **outsymbols; -. -. {* Pointer to structure which contains architecture information*} -. const struct bfd_arch_info *arch_info; -. -. {* Stuff only useful for archives:*} -. PTR 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. *} -. 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 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; -. PTR any; -. } tdata; -. -. {* Used by the application to hold private data*} -. PTR usrdata; -. -. {* Where all the allocated stuff under this BFD goes. This is a -. struct objalloc *, but we use PTR to avoid requiring the inclusion of -. objalloc.h. *} -. PTR memory; -.}; -. -*/ - -#include "bfd.h" -#include "sysdep.h" - -#ifdef ANSI_PROTOTYPES -#include <stdarg.h> -#else -#include <varargs.h> -#endif - -#include "libiberty.h" -#include "bfdlink.h" -#include "libbfd.h" -#include "coff/internal.h" -#include "coff/sym.h" -#include "libcoff.h" -#include "libecoff.h" -#undef obj_symbols -#include "elf-bfd.h" - -#include <ctype.h> - -/* provide storage for subsystem, stack and heap data which may have been - passed in on the command line. Ld puts this data into a bfd_link_info - struct which ultimately gets passed in to the bfd. When it arrives, copy - it to the following struct so that the data will be available in coffcode.h - where it is needed. The typedef's used are defined in bfd.h */ - -/* -SECTION - 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>>. - -SUBSECTION - Type <<bfd_error_type>> - - The values returned by <<bfd_get_error>> are defined by the - enumerated type <<bfd_error_type>>. - -CODE_FRAGMENT -. -.typedef enum bfd_error -.{ -. bfd_error_no_error = 0, -. bfd_error_system_call, -. bfd_error_invalid_target, -. bfd_error_wrong_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; -. -*/ - -static bfd_error_type bfd_error = bfd_error_no_error; - -CONST char *CONST bfd_errmsgs[] = { - N_("No error"), - N_("System call error"), - N_("Invalid bfd target"), - N_("File in wrong format"), - N_("Invalid operation"), - N_("Memory exhausted"), - N_("No symbols"), - N_("Archive has no index; run ranlib to add one"), - N_("No more archived files"), - N_("Malformed archive"), - N_("File format not recognized"), - N_("File format is ambiguous"), - N_("Section has no contents"), - N_("Nonrepresentable section on output"), - N_("Symbol needs debug section which does not exist"), - N_("Bad value"), - N_("File truncated"), - N_("File too big"), - N_("#<Invalid error code>") - }; - -/* -FUNCTION - bfd_get_error - -SYNOPSIS - bfd_error_type bfd_get_error (void); - -DESCRIPTION - Return the current BFD error condition. -*/ - -bfd_error_type -bfd_get_error () -{ - return bfd_error; -} - -/* -FUNCTION - bfd_set_error - -SYNOPSIS - void bfd_set_error (bfd_error_type error_tag); - -DESCRIPTION - Set the BFD error condition to be @var{error_tag}. -*/ - -void -bfd_set_error (error_tag) - bfd_error_type error_tag; -{ - bfd_error = error_tag; -} - -/* -FUNCTION - bfd_errmsg - -SYNOPSIS - CONST char *bfd_errmsg (bfd_error_type error_tag); - -DESCRIPTION - Return a string describing the error @var{error_tag}, or - the system error if @var{error_tag} is <<bfd_error_system_call>>. -*/ - -CONST char * -bfd_errmsg (error_tag) - bfd_error_type error_tag; -{ -#ifndef errno - extern int errno; -#endif - if (error_tag == bfd_error_system_call) - return xstrerror (errno); - - if ((((int)error_tag <(int) bfd_error_no_error) || - ((int)error_tag > (int)bfd_error_invalid_error_code))) - error_tag = bfd_error_invalid_error_code;/* sanity check */ - - return _(bfd_errmsgs [(int)error_tag]); -} - -/* -FUNCTION - 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 @var{message} - is non-NULL and non-empty, the error string printed is preceded - by @var{message}, a colon, and a space. It is followed by a newline. -*/ - -void -bfd_perror (message) - CONST char *message; -{ - if (bfd_get_error () == bfd_error_system_call) - perror((char *)message); /* must be system error then... */ - else { - if (message == NULL || *message == '\0') - fprintf (stderr, "%s\n", bfd_errmsg (bfd_get_error ())); - else - fprintf (stderr, "%s: %s\n", message, bfd_errmsg (bfd_get_error ())); - } -} - -/* -SUBSECTION - BFD error handler - - Some BFD functions want to print messages describing the - problem. They call a BFD error handler function. This - function may be overriden by the program. - - The BFD error handler acts like printf. - -CODE_FRAGMENT -. -.typedef void (*bfd_error_handler_type) PARAMS ((const char *, ...)); -. -*/ - -/* The program name used when printing BFD error messages. */ - -static const char *_bfd_error_program_name; - -/* This is the default routine to handle BFD error messages. */ - -#ifdef ANSI_PROTOTYPES - -static void _bfd_default_error_handler PARAMS ((const char *s, ...)); - -static void -_bfd_default_error_handler (const char *s, ...) -{ - va_list p; - - if (_bfd_error_program_name != NULL) - fprintf (stderr, "%s: ", _bfd_error_program_name); - else - fprintf (stderr, "BFD: "); - - va_start (p, s); - - vfprintf (stderr, s, p); - - va_end (p); - - fprintf (stderr, "\n"); -} - -#else /* ! defined (ANSI_PROTOTYPES) */ - -static void _bfd_default_error_handler (); - -static void -_bfd_default_error_handler (va_alist) - va_dcl -{ - va_list p; - const char *s; - - if (_bfd_error_program_name != NULL) - fprintf (stderr, "%s: ", _bfd_error_program_name); - else - fprintf (stderr, "BFD: "); - - va_start (p); - - s = va_arg (p, const char *); - vfprintf (stderr, s, p); - - va_end (p); - - fprintf (stderr, "\n"); -} - -#endif /* ! defined (ANSI_PROTOTYPES) */ - -/* This is a function pointer to the routine which should handle BFD - error messages. It is called when a BFD routine encounters an - error for which it wants to print a message. Going through a - function pointer permits a program linked against BFD to intercept - the messages and deal with them itself. */ - -bfd_error_handler_type _bfd_error_handler = _bfd_default_error_handler; - -/* -FUNCTION - 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. -*/ - -bfd_error_handler_type -bfd_set_error_handler (pnew) - bfd_error_handler_type pnew; -{ - bfd_error_handler_type pold; - - pold = _bfd_error_handler; - _bfd_error_handler = pnew; - return pold; -} - -/* -FUNCTION - 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. -*/ - -void -bfd_set_error_program_name (name) - const char *name; -{ - _bfd_error_program_name = name; -} - -/* -FUNCTION - bfd_get_error_handler - -SYNOPSIS - bfd_error_handler_type bfd_get_error_handler (void); - -DESCRIPTION - Return the BFD error handler function. -*/ - -bfd_error_handler_type -bfd_get_error_handler () -{ - return _bfd_error_handler; -} - -/* -SECTION - Symbols -*/ - -/* -FUNCTION - 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 @var{sect} - attached to bfd @var{abfd}. If an error occurs, return -1. - -*/ - -long -bfd_get_reloc_upper_bound (abfd, asect) - bfd *abfd; - sec_ptr asect; -{ - if (abfd->format != bfd_object) { - bfd_set_error (bfd_error_invalid_operation); - return -1; - } - - return BFD_SEND (abfd, _get_reloc_upper_bound, (abfd, asect)); -} - -/* -FUNCTION - 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 - @var{abfd} and translate the external form of the relocation - information attached to @var{sec} into the internal canonical - form. Place the table into memory at @var{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 @var{syms} table is also needed for horrible internal magic - reasons. - -*/ -long -bfd_canonicalize_reloc (abfd, asect, location, symbols) - bfd *abfd; - sec_ptr asect; - arelent **location; - asymbol **symbols; -{ - if (abfd->format != bfd_object) { - bfd_set_error (bfd_error_invalid_operation); - return -1; - } - return BFD_SEND (abfd, _bfd_canonicalize_reloc, - (abfd, asect, location, symbols)); -} - -/* -FUNCTION - 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 @var{sec} to the values @var{rel} and @var{count}. - The argument @var{abfd} is ignored. - -*/ - -void -bfd_set_reloc (ignore_abfd, asect, location, count) - bfd *ignore_abfd ATTRIBUTE_UNUSED; - sec_ptr asect; - arelent **location; - unsigned int count; -{ - asect->orelocation = location; - asect->reloc_count = count; -} - -/* -FUNCTION - bfd_set_file_flags - -SYNOPSIS - boolean bfd_set_file_flags(bfd *abfd, flagword flags); - -DESCRIPTION - Set the flag word in the BFD @var{abfd} to the value @var{flags}. - - Possible errors are: - o <<bfd_error_wrong_format>> - The target bfd was not of object format. - o <<bfd_error_invalid_operation>> - The target bfd was open for reading. - o <<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. - -*/ - -boolean -bfd_set_file_flags (abfd, flags) - bfd *abfd; - flagword flags; -{ - if (abfd->format != bfd_object) { - bfd_set_error (bfd_error_wrong_format); - return false; - } - - if (bfd_read_p (abfd)) { - bfd_set_error (bfd_error_invalid_operation); - return false; - } - - bfd_get_file_flags (abfd) = flags; - if ((flags & bfd_applicable_file_flags (abfd)) != flags) { - bfd_set_error (bfd_error_invalid_operation); - return false; - } - -return true; -} - -void -bfd_assert (file, line) - const char *file; - int line; -{ - (*_bfd_error_handler) (_("bfd assertion fail %s:%d"), file, line); -} - -/* A more or less friendly abort message. In libbfd.h abort is - defined to call this function. */ - -#ifndef EXIT_FAILURE -#define EXIT_FAILURE 1 -#endif - -void -_bfd_abort (file, line, fn) - const char *file; - int line; - const char *fn; -{ - if (fn != NULL) - (*_bfd_error_handler) - (_("BFD internal error, aborting at %s line %d in %s\n"), - file, line, fn); - else - (*_bfd_error_handler) - (_("BFD internal error, aborting at %s line %d\n"), - file, line); - (*_bfd_error_handler) (_("Please report this bug.\n")); - xexit (EXIT_FAILURE); -} - -/* -FUNCTION - 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. -*/ - -int -bfd_get_arch_size (abfd) - bfd *abfd; -{ - if (abfd->xvec->flavour == bfd_target_elf_flavour) - return (get_elf_backend_data (abfd))->s->arch_size; - - bfd_set_error (bfd_error_wrong_format); - return -1; -} - -/* -FUNCTION - 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. -*/ - -int -bfd_get_sign_extend_vma (abfd) - bfd *abfd; -{ - char *name; - - if (bfd_get_flavour (abfd) == bfd_target_elf_flavour) - return (get_elf_backend_data (abfd)->sign_extend_vma); - - name = bfd_get_target (abfd); - - /* Return a proper value for DJGPP COFF (an x86 COFF variant). - This function is required for DWARF2 support, but there is - no place to store this information in the COFF back end. - Should enough other COFF targets add support for DWARF2, - a place will have to be found. Until then, this hack will do. */ - if (strncmp (name, "coff-go32", sizeof ("coff-go32") - 1) == 0) - return 1; - - bfd_set_error (bfd_error_wrong_format); - return -1; -} - -/* -FUNCTION - bfd_set_start_address - -SYNOPSIS - boolean bfd_set_start_address(bfd *abfd, bfd_vma vma); - -DESCRIPTION - Make @var{vma} the entry point of output BFD @var{abfd}. - -RETURNS - Returns <<true>> on success, <<false>> otherwise. -*/ - -boolean -bfd_set_start_address(abfd, vma) -bfd *abfd; -bfd_vma vma; -{ - abfd->start_address = vma; - return true; -} - -/* -FUNCTION - 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). - -*/ - -long -bfd_get_mtime (abfd) - bfd *abfd; -{ - FILE *fp; - struct stat buf; - - if (abfd->mtime_set) - return abfd->mtime; - - fp = bfd_cache_lookup (abfd); - if (0 != fstat (fileno (fp), &buf)) - return 0; - - abfd->mtime = buf.st_mtime; /* Save value in case anyone wants it */ - return buf.st_mtime; -} - -/* -FUNCTION - 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 @var{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 quesion, "is the - size reasonable?". -*/ - -long -bfd_get_size (abfd) - bfd *abfd; -{ - FILE *fp; - struct stat buf; - - if ((abfd->flags & BFD_IN_MEMORY) != 0) - return ((struct bfd_in_memory *) abfd->iostream)->size; - - fp = bfd_cache_lookup (abfd); - if (0 != fstat (fileno (fp), &buf)) - return 0; - - return buf.st_size; -} - -/* -FUNCTION - bfd_get_gp_size - -SYNOPSIS - 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. -*/ - -int -bfd_get_gp_size (abfd) - bfd *abfd; -{ - if (abfd->format == bfd_object) - { - if (abfd->xvec->flavour == bfd_target_ecoff_flavour) - return ecoff_data (abfd)->gp_size; - else if (abfd->xvec->flavour == bfd_target_elf_flavour) - return elf_gp_size (abfd); - } - return 0; -} - -/* -FUNCTION - bfd_set_gp_size - -SYNOPSIS - void bfd_set_gp_size(bfd *abfd, 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. -*/ - -void -bfd_set_gp_size (abfd, i) - bfd *abfd; - int i; -{ - /* Don't try to set GP size on an archive or core file! */ - if (abfd->format != bfd_object) - return; - if (abfd->xvec->flavour == bfd_target_ecoff_flavour) - ecoff_data (abfd)->gp_size = i; - else if (abfd->xvec->flavour == bfd_target_elf_flavour) - elf_gp_size (abfd) = i; -} - -/* Get the GP value. This is an internal function used by some of the - relocation special_function routines on targets which support a GP - register. */ - -bfd_vma -_bfd_get_gp_value (abfd) - bfd *abfd; -{ - if (abfd->format == bfd_object) - { - if (abfd->xvec->flavour == bfd_target_ecoff_flavour) - return ecoff_data (abfd)->gp; - else if (abfd->xvec->flavour == bfd_target_elf_flavour) - return elf_gp (abfd); - } - return 0; -} - -/* Set the GP value. */ - -void -_bfd_set_gp_value (abfd, v) - bfd *abfd; - bfd_vma v; -{ - if (abfd->format != bfd_object) - return; - if (abfd->xvec->flavour == bfd_target_ecoff_flavour) - ecoff_data (abfd)->gp = v; - else if (abfd->xvec->flavour == bfd_target_elf_flavour) - elf_gp (abfd) = v; -} - -/* -FUNCTION - bfd_scan_vma - -SYNOPSIS - bfd_vma bfd_scan_vma(CONST char *string, CONST char **end, int base); - -DESCRIPTION - Convert, like <<strtoul>>, a numerical expression - @var{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 @var{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. - - Overflow is not detected. -*/ - -bfd_vma -bfd_scan_vma (string, end, base) - CONST char *string; - CONST char **end; - int base; -{ - bfd_vma value; - int digit; - - /* Let the host do it if possible. */ - if (sizeof (bfd_vma) <= sizeof (unsigned long)) - return (bfd_vma) strtoul (string, (char **) end, base); - - /* A negative base makes no sense, and we only need to go as high as hex. */ - if ((base < 0) || (base > 16)) - return (bfd_vma) 0; - - if (base == 0) - { - if (string[0] == '0') - { - if ((string[1] == 'x') || (string[1] == 'X')) - base = 16; - /* XXX should we also allow "0b" or "0B" to set base to 2? */ - else - base = 8; - } - else - base = 10; - } - if ((base == 16) && - (string[0] == '0') && ((string[1] == 'x') || (string[1] == 'X'))) - string += 2; - /* XXX should we also skip over "0b" or "0B" if base is 2? */ - -/* Speed could be improved with a table like hex_value[] in gas. */ -#define HEX_VALUE(c) \ - (isxdigit ((unsigned char) c) \ - ? (isdigit ((unsigned char) c) \ - ? (c - '0') \ - : (10 + c - (islower ((unsigned char) c) ? 'a' : 'A'))) \ - : 42) - - for (value = 0; (digit = HEX_VALUE(*string)) < base; string++) - { - value = value * base + digit; - } - - if (end) - *end = string; - - return value; -} - -/* -FUNCTION - bfd_copy_private_bfd_data - -SYNOPSIS - boolean bfd_copy_private_bfd_data(bfd *ibfd, bfd *obfd); - -DESCRIPTION - Copy private BFD information from the BFD @var{ibfd} to the - the BFD @var{obfd}. Return <<true>> on success, <<false>> on error. - Possible error returns are: - - o <<bfd_error_no_memory>> - - Not enough memory exists to create private data for @var{obfd}. - -.#define bfd_copy_private_bfd_data(ibfd, obfd) \ -. BFD_SEND (obfd, _bfd_copy_private_bfd_data, \ -. (ibfd, obfd)) - -*/ - -/* -FUNCTION - bfd_merge_private_bfd_data - -SYNOPSIS - boolean bfd_merge_private_bfd_data(bfd *ibfd, bfd *obfd); - -DESCRIPTION - Merge private BFD information from the BFD @var{ibfd} to the - the output file BFD @var{obfd} when linking. Return <<true>> - on success, <<false>> on error. Possible error returns are: - - o <<bfd_error_no_memory>> - - Not enough memory exists to create private data for @var{obfd}. - -.#define bfd_merge_private_bfd_data(ibfd, obfd) \ -. BFD_SEND (obfd, _bfd_merge_private_bfd_data, \ -. (ibfd, obfd)) - -*/ - -/* -FUNCTION - bfd_set_private_flags - -SYNOPSIS - boolean bfd_set_private_flags(bfd *abfd, flagword flags); - -DESCRIPTION - Set private BFD flag information in the BFD @var{abfd}. - Return <<true>> on success, <<false>> on error. Possible error - returns are: - - o <<bfd_error_no_memory>> - - Not enough memory exists to create private data for @var{obfd}. - -.#define bfd_set_private_flags(abfd, flags) \ -. BFD_SEND (abfd, _bfd_set_private_flags, \ -. (abfd, flags)) - -*/ - -/* -FUNCTION - stuff - -DESCRIPTION - Stuff which should be 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)) -. -. {* Do these three do anything useful at all, for any back end? *} -.#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_link_hash_table_create(abfd) \ -. BFD_SEND (abfd, _bfd_link_hash_table_create, (abfd)) -. -.#define bfd_link_add_symbols(abfd, info) \ -. BFD_SEND (abfd, _bfd_link_add_symbols, (abfd, 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_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 -. PARAMS ((bfd *, struct bfd_link_info *, -. struct bfd_link_order *, bfd_byte *, -. boolean, asymbol **)); -. - -*/ - -bfd_byte * -bfd_get_relocated_section_contents (abfd, link_info, link_order, data, - relocateable, symbols) - bfd *abfd; - struct bfd_link_info *link_info; - struct bfd_link_order *link_order; - bfd_byte *data; - boolean relocateable; - asymbol **symbols; -{ - bfd *abfd2; - bfd_byte *(*fn) PARAMS ((bfd *, struct bfd_link_info *, - struct bfd_link_order *, bfd_byte *, boolean, - asymbol **)); - - if (link_order->type == bfd_indirect_link_order) - { - abfd2 = link_order->u.indirect.section->owner; - if (abfd2 == 0) - abfd2 = abfd; - } - else - abfd2 = abfd; - fn = abfd2->xvec->_bfd_get_relocated_section_contents; - - return (*fn) (abfd, link_info, link_order, data, relocateable, symbols); -} - -/* Record information about an ELF program header. */ - -boolean -bfd_record_phdr (abfd, type, flags_valid, flags, at_valid, at, - includes_filehdr, includes_phdrs, count, secs) - bfd *abfd; - unsigned long type; - boolean flags_valid; - flagword flags; - boolean at_valid; - bfd_vma at; - boolean includes_filehdr; - boolean includes_phdrs; - unsigned int count; - asection **secs; -{ - struct elf_segment_map *m, **pm; - - if (bfd_get_flavour (abfd) != bfd_target_elf_flavour) - return true; - - m = ((struct elf_segment_map *) - bfd_alloc (abfd, - (sizeof (struct elf_segment_map) - + ((size_t) count - 1) * sizeof (asection *)))); - if (m == NULL) - return false; - - m->next = NULL; - m->p_type = type; - m->p_flags = flags; - m->p_paddr = at; - m->p_flags_valid = flags_valid; - m->p_paddr_valid = at_valid; - m->includes_filehdr = includes_filehdr; - m->includes_phdrs = includes_phdrs; - m->count = count; - if (count > 0) - memcpy (m->sections, secs, count * sizeof (asection *)); - - for (pm = &elf_tdata (abfd)->segment_map; *pm != NULL; pm = &(*pm)->next) - ; - *pm = m; - - return true; -} |