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Diffstat (limited to 'bfd/libecoff.h')
| -rw-r--r-- | bfd/libecoff.h | 357 |
1 files changed, 0 insertions, 357 deletions
diff --git a/bfd/libecoff.h b/bfd/libecoff.h deleted file mode 100644 index e8e256d3f35..00000000000 --- a/bfd/libecoff.h +++ /dev/null @@ -1,357 +0,0 @@ -/* BFD ECOFF object file private structure. - Copyright 1993, 1994, 1995, 1996, 1999 Free Software Foundation, Inc. - Written by Ian Lance Taylor, 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. */ - -#include "bfdlink.h" - -#ifndef ECOFF_H -#include "coff/ecoff.h" -#endif - -/* This is the backend information kept for ECOFF files. This - structure is constant for a particular backend. The first element - is the COFF backend data structure, so that ECOFF targets can use - the generic COFF code. */ - -#define ecoff_backend(abfd) \ - ((struct ecoff_backend_data *) (abfd)->xvec->backend_data) - -struct ecoff_backend_data -{ - /* COFF backend information. This must be the first field. */ - bfd_coff_backend_data coff; - /* Supported architecture. */ - enum bfd_architecture arch; - /* Initial portion of armap string. */ - const char *armap_start; - /* The page boundary used to align sections in a demand-paged - executable file. E.g., 0x1000. */ - bfd_vma round; - /* True if the .rdata section is part of the text segment, as on the - Alpha. False if .rdata is part of the data segment, as on the - MIPS. */ - boolean rdata_in_text; - /* Bitsize of constructor entries. */ - unsigned int constructor_bitsize; - /* Reloc to use for constructor entries. */ - reloc_howto_type *constructor_reloc; - /* How to swap debugging information. */ - struct ecoff_debug_swap debug_swap; - /* External reloc size. */ - bfd_size_type external_reloc_size; - /* Reloc swapping functions. */ - void (*swap_reloc_in) PARAMS ((bfd *, PTR, struct internal_reloc *)); - void (*swap_reloc_out) PARAMS ((bfd *, const struct internal_reloc *, PTR)); - /* Backend reloc tweaking. */ - void (*adjust_reloc_in) PARAMS ((bfd *, const struct internal_reloc *, - arelent *)); - void (*adjust_reloc_out) PARAMS ((bfd *, const arelent *, - struct internal_reloc *)); - /* Relocate section contents while linking. */ - boolean (*relocate_section) PARAMS ((bfd *output_bfd, struct bfd_link_info *, - bfd *input_bfd, asection *input_section, - bfd_byte *contents, - PTR external_relocs)); - /* Do final adjustments to filehdr and aouthdr. */ - boolean (*adjust_headers) PARAMS ((bfd *, struct internal_filehdr *, - struct internal_aouthdr *)); - /* Read an element from an archive at a given file position. This - is needed because OSF/1 3.2 uses a weird archive format. */ - bfd *(*get_elt_at_filepos) PARAMS ((bfd *, file_ptr)); -}; - -/* This is the target specific information kept for ECOFF files. */ - -#define ecoff_data(abfd) ((abfd)->tdata.ecoff_obj_data) - -typedef struct ecoff_tdata -{ - /* The reloc file position, set by - ecoff_compute_section_file_positions. */ - file_ptr reloc_filepos; - - /* The symbol table file position, set by _bfd_ecoff_mkobject_hook. */ - file_ptr sym_filepos; - - /* The start and end of the text segment. Only valid for an - existing file, not for one we are creating. */ - unsigned long text_start; - unsigned long text_end; - - /* The cached gp value. This is used when relocating. */ - bfd_vma gp; - - /* The maximum size of objects to optimize using gp. This is - typically set by the -G option to the compiler, assembler or - linker. */ - unsigned int gp_size; - - /* The register masks. When linking, all the masks found in the - input files are combined into the masks of the output file. - These are not all used for all targets, but that's OK, because - the relevant ones are the only ones swapped in and out. */ - unsigned long gprmask; - unsigned long fprmask; - unsigned long cprmask[4]; - - /* The ECOFF symbolic debugging information. */ - struct ecoff_debug_info debug_info; - - /* The unswapped ECOFF symbolic information. */ - PTR raw_syments; - - /* The canonical BFD symbols. */ - struct ecoff_symbol_struct *canonical_symbols; - - /* A mapping from external symbol numbers to entries in the linker - hash table, used when linking. */ - struct ecoff_link_hash_entry **sym_hashes; - - /* A mapping from reloc symbol indices to sections, used when - linking. */ - asection **symndx_to_section; - - /* True if this BFD was written by the backend linker. */ - boolean linker; - - /* True if a warning that multiple global pointer values are - needed in the output binary was issued already. */ - boolean issued_multiple_gp_warning; - - /* Used by find_nearest_line entry point. The structure could be - included directly in this one, but there's no point to wasting - the memory just for the infrequently called find_nearest_line. */ - struct ecoff_find_line *find_line_info; - - /* Whether the .rdata section is in the text segment for this - particular ECOFF file. This is not valid until - ecoff_compute_section_file_positions is called. */ - boolean rdata_in_text; - -} ecoff_data_type; - -/* Each canonical asymbol really looks like this. */ - -typedef struct ecoff_symbol_struct -{ - /* The actual symbol which the rest of BFD works with */ - asymbol symbol; - - /* The fdr for this symbol. */ - FDR *fdr; - - /* true if this is a local symbol rather than an external one. */ - boolean local; - - /* A pointer to the unswapped hidden information for this symbol. - This is either a struct sym_ext or a struct ext_ext, depending on - the value of the local field above. */ - PTR native; -} ecoff_symbol_type; - -/* We take the address of the first element of a asymbol to ensure that the - macro is only ever applied to an asymbol. */ -#define ecoffsymbol(asymbol) ((ecoff_symbol_type *) (&((asymbol)->the_bfd))) - -/* We need to save the index of an external symbol when we write it - out so that can set the symbol index correctly when we write out - the relocs. */ -#define ecoff_get_sym_index(symbol) ((symbol)->udata.i) -#define ecoff_set_sym_index(symbol, idx) ((symbol)->udata.i = (idx)) - -/* When generating MIPS embedded PIC code, the linker relaxes the code - to turn PC relative branches into longer code sequences when the PC - relative branch is out of range. This involves reading the relocs - in bfd_relax_section as well as in bfd_final_link, and requires the - code to keep track of which relocs have been expanded. A pointer - to this structure is put in the used_by_bfd pointer of a section to - keep track of this information. The user_by_bfd pointer will be - NULL if the information was not needed. */ - -struct ecoff_section_tdata -{ - /* The unswapped relocs for this section. These are stored in - memory so the input file does not have to be read twice. */ - PTR external_relocs; - - /* The contents of the section. These bytes may or may not be saved - in memory, but if it is this is a pointer to them. */ - bfd_byte *contents; - - /* Offset adjustments for PC relative branches. A number other than - 1 is an addend for a PC relative branch, or a switch table entry - which is the difference of two .text locations; this addend - arises because the branch or difference crosses one or more - branches which were expanded into a larger code sequence. A 1 - means that this branch was itself expanded into a larger code - sequence. 1 is not a possible offset, since all offsets must be - multiples of the instruction size, which is 4; also, the only - relocs with non-zero offsets will be PC relative branches or - switch table entries within the same object file. If this field - is NULL, no branches were expanded and no offsets are required. - Otherwise there are as many entries as there are relocs in the - section, and the entry for any reloc that is not PC relative is - zero. */ - long *offsets; - - /* When producing an executable (i.e., final, non-relocatable link) - on the Alpha, we may need to use multiple global pointer values - to span the entire .lita section. In essence, we allow each - input .lita section to have its own gp value. To support this, - we need to keep track of the gp values that we picked for each - input .lita section . */ - bfd_vma gp; -}; - -/* An accessor macro for the ecoff_section_tdata structure. */ -#define ecoff_section_data(abfd, sec) \ - ((struct ecoff_section_tdata *) (sec)->used_by_bfd) - -/* ECOFF linker hash table entries. */ - -struct ecoff_link_hash_entry -{ - struct bfd_link_hash_entry root; - /* Symbol index in output file. */ - long indx; - /* BFD that ext field value came from. */ - bfd *abfd; - /* ECOFF external symbol information. */ - EXTR esym; - /* Nonzero if this symbol has been written out. */ - char written; - /* Nonzero if this symbol was referred to as small undefined. */ - char small; -}; - -/* ECOFF linker hash table. */ - -struct ecoff_link_hash_table -{ - struct bfd_link_hash_table root; -}; - -/* Make an ECOFF object. */ -extern boolean _bfd_ecoff_mkobject PARAMS ((bfd *)); - -/* Read in the ECOFF symbolic debugging information. */ -extern boolean _bfd_ecoff_slurp_symbolic_info - PARAMS ((bfd *, asection *, struct ecoff_debug_info *)); - -/* Generic ECOFF BFD backend vectors. */ - -extern boolean _bfd_ecoff_write_object_contents PARAMS ((bfd *abfd)); -extern const bfd_target *_bfd_ecoff_archive_p PARAMS ((bfd *abfd)); - -#define _bfd_ecoff_close_and_cleanup _bfd_generic_close_and_cleanup -#define _bfd_ecoff_bfd_free_cached_info _bfd_generic_bfd_free_cached_info -extern boolean _bfd_ecoff_new_section_hook - PARAMS ((bfd *, asection *)); -extern boolean _bfd_ecoff_get_section_contents - PARAMS ((bfd *, asection *, PTR location, file_ptr, bfd_size_type)); - -#define _bfd_ecoff_bfd_link_split_section _bfd_generic_link_split_section - -extern boolean _bfd_ecoff_bfd_copy_private_bfd_data PARAMS ((bfd *, bfd *)); -#define _bfd_ecoff_bfd_copy_private_section_data \ - _bfd_generic_bfd_copy_private_section_data - -#define _bfd_ecoff_bfd_copy_private_symbol_data \ - _bfd_generic_bfd_copy_private_symbol_data - -#define _bfd_ecoff_bfd_print_private_bfd_data \ - _bfd_generic_bfd_print_private_bfd_data - -#define _bfd_ecoff_bfd_merge_private_bfd_data \ - _bfd_generic_bfd_merge_private_bfd_data - -#define _bfd_ecoff_bfd_set_private_flags _bfd_generic_bfd_set_private_flags -extern boolean _bfd_ecoff_slurp_armap PARAMS ((bfd *abfd)); -#define _bfd_ecoff_slurp_extended_name_table _bfd_slurp_extended_name_table -#define _bfd_ecoff_construct_extended_name_table \ - _bfd_archive_bsd_construct_extended_name_table -#define _bfd_ecoff_truncate_arname bfd_dont_truncate_arname -extern boolean _bfd_ecoff_write_armap - PARAMS ((bfd *, unsigned int, struct orl *, unsigned int, int)); -#define _bfd_ecoff_read_ar_hdr _bfd_generic_read_ar_hdr -#define _bfd_ecoff_openr_next_archived_file \ - bfd_generic_openr_next_archived_file -#define _bfd_ecoff_get_elt_at_index _bfd_generic_get_elt_at_index -#define _bfd_ecoff_generic_stat_arch_elt bfd_generic_stat_arch_elt -#define _bfd_ecoff_update_armap_timestamp bfd_true - -extern long _bfd_ecoff_get_symtab_upper_bound PARAMS ((bfd *abfd)); -extern long _bfd_ecoff_get_symtab PARAMS ((bfd *abfd, asymbol **alocation)); -extern asymbol *_bfd_ecoff_make_empty_symbol PARAMS ((bfd *abfd)); -extern void _bfd_ecoff_print_symbol - PARAMS ((bfd *, PTR filep, asymbol *, bfd_print_symbol_type)); -extern void _bfd_ecoff_get_symbol_info - PARAMS ((bfd *, asymbol *, symbol_info *)); -extern boolean _bfd_ecoff_bfd_is_local_label_name - PARAMS ((bfd *, const char *)); -#define _bfd_ecoff_get_lineno _bfd_nosymbols_get_lineno -extern boolean _bfd_ecoff_find_nearest_line - PARAMS ((bfd *, asection *, asymbol **, bfd_vma offset, - const char **filename_ptr, const char **fnname_ptr, - unsigned int *retline_ptr)); -#define _bfd_ecoff_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol -#define _bfd_ecoff_read_minisymbols _bfd_generic_read_minisymbols -#define _bfd_ecoff_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol - -#define _bfd_ecoff_get_reloc_upper_bound coff_get_reloc_upper_bound -extern long _bfd_ecoff_canonicalize_reloc - PARAMS ((bfd *, asection *, arelent **, asymbol **symbols)); -/* ecoff_bfd_reloc_type_lookup defined by backend. */ - -extern boolean _bfd_ecoff_set_arch_mach - PARAMS ((bfd *, enum bfd_architecture, unsigned long machine)); -extern boolean _bfd_ecoff_set_section_contents - PARAMS ((bfd *, asection *, PTR location, file_ptr, bfd_size_type)); - -extern int _bfd_ecoff_sizeof_headers PARAMS ((bfd *abfd, boolean reloc)); -/* ecoff_bfd_get_relocated_section_contents defined by backend. */ -/* ecoff_bfd_relax_section defined by backend. */ -extern struct bfd_link_hash_table *_bfd_ecoff_bfd_link_hash_table_create - PARAMS ((bfd *)); -extern boolean _bfd_ecoff_bfd_link_add_symbols - PARAMS ((bfd *, struct bfd_link_info *)); -extern boolean _bfd_ecoff_bfd_final_link - PARAMS ((bfd *, struct bfd_link_info *)); - -/* Hook functions for the generic COFF section reading code. */ - -extern PTR _bfd_ecoff_mkobject_hook PARAMS ((bfd *, PTR filehdr, PTR aouthdr)); -#define _bfd_ecoff_set_alignment_hook \ - ((void (*) PARAMS ((bfd *, asection *, PTR))) bfd_void) -extern boolean _bfd_ecoff_set_arch_mach_hook PARAMS ((bfd *abfd, PTR filehdr)); -extern flagword _bfd_ecoff_styp_to_sec_flags - PARAMS ((bfd *, PTR, const char *, asection *, flagword *)); -extern boolean _bfd_ecoff_slurp_symbol_table PARAMS ((bfd *abfd)); - -/* ECOFF auxiliary information swapping routines. These are the same - for all ECOFF targets, so they are defined in ecofflink.c. */ - -extern void _bfd_ecoff_swap_tir_in - PARAMS ((int, const struct tir_ext *, TIR *)); -extern void _bfd_ecoff_swap_tir_out - PARAMS ((int, const TIR *, struct tir_ext *)); -extern void _bfd_ecoff_swap_rndx_in - PARAMS ((int, const struct rndx_ext *, RNDXR *)); -extern void _bfd_ecoff_swap_rndx_out - PARAMS ((int, const RNDXR *, struct rndx_ext *)); |