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69645d10fb
* cofflink.c: New file. * libcoff-in.h: Include bfdlink.h. (obj_coff_external_syms, obj_coff_strings): Define accessor macro. (obj_coff_sym_hashes): Define accessor macro. (struct coff_tdata): Add fields external_syms, strings, and sym_hashes. (struct coff_link_hash_entry): Define. (struct coff_link_hash_table): Define. (coff_link_hash_lookup, coff_link_hash_traverse): Define. (coff_hash_table): Define. (_bfd_coff_link_hash_table_create): Declare. (_bfd_coff_link_add_symbols, _bfd_coff_final_link): Declare. * coffcode.h (bfd_coff_backend_data): Add fields _bfd_relsz, _bfd_coff_swap_reloc_in, _bfd_coff_sym_is_global, _bfd_coff_compute_section_file_positions, _bfd_coff_relocate_section. (bfd_coff_relsz, bfd_coff_swap_reloc_in): Define. (bfd_coff_sym_is_global): Define. (bfd_coff_compute_section_file_positions): Define. (bfd_coff_relocate_section): Define. (coff_mkobject_hook): Initialize obj_raw_syment_count and obj_conv_table_size. (coff_compute_section_file_positions): Set target_index of all sections. Set output_has_begun field. (coff_write_object_contents): Don't set target_index; now done by coff_compute_section_file_positions. Remove obsolete handling of scn_base and data_base. Don't bother to check that target_index is positive, since it always is. Remove use of pad, which is always zero. Check obj_raw_syment_count, not bfd_get_symcount, for the number of symbols, but only write them out if bfd_get_symcount is non-zero. (coff_slurp_symbol_table): Use obj_raw_syment_count, not bfd_get_symcount for the number of symbols. Don't set obj_conv_table_size. (coff_sym_is_global): New static function or macro. (coff_slurp_reloc_table): Call coff_swap_reloc_in, not bfd_swap_reloc_in. (coff_bfd_link_hash_table_create): If coff_relocate_section is defined, define as _bfd_coff_link_hash_table_create. (coff_bfd_link_add_symbols): Similar change. (coff_bfd_final_link): Similar change. (coff_relocate_section): Define as NULL if not defined. (bfd_coff_std_swap_table): Initialize new fields. * coffgen.c (coff_real_object_p): Don't set obj_raw_syment_count and obj_conv_table_size here. (coff_count_linenumbers): Reindent. If bfd_get_symcount is zero, add up the line numbers from the sections. (coff_write_symbols): Don't set bfd_get_symcount. (coff_pointerize_aux): Don't pointerize a nonpositive x_endndx field. (coff_get_normalized_symtab): Use obj_raw_syment_count, not bfd_get_symcount. (coff_print_symbol): If auxp->fix_end, print x_endndx value. * coffswap.h (coff_swap_reloc_in): Rename from bfd_swap_reloc_in. Reindent. Change argument type to PTR. * coff-a29k.c (coff_a29k_relocate_section): New static function. (coff_relocate_section): Define. * configure.in (a29kcoff_big_vec): Compile cofflink.o. * coff-alpha.c (alpha_ecoff_backend_data): Initialize new fields. * coff-mips.c (mips_ecoff_backend_data): Likewise. * libcoff.h: Rebuilt. * Makefile.in: Rebuilt dependencies. (BFD32_BACKENDS): Add cofflink.o. (CFILES): Add cofflink.c.
466 lines
16 KiB
C
466 lines
16 KiB
C
/* BFD COFF object file private structure.
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Copyright (C) 1990, 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
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Written by Cygnus Support.
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This file is part of BFD, the Binary File Descriptor library.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#include "bfdlink.h"
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/* Object file tdata; access macros */
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#define coff_data(bfd) ((bfd)->tdata.coff_obj_data)
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#define exec_hdr(bfd) (coff_data(bfd)->hdr)
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#define obj_symbols(bfd) (coff_data(bfd)->symbols)
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#define obj_sym_filepos(bfd) (coff_data(bfd)->sym_filepos)
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#define obj_relocbase(bfd) (coff_data(bfd)->relocbase)
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#define obj_raw_syments(bfd) (coff_data(bfd)->raw_syments)
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#define obj_raw_syment_count(bfd) (coff_data(bfd)->raw_syment_count)
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#define obj_convert(bfd) (coff_data(bfd)->conversion_table)
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#define obj_conv_table_size(bfd) (coff_data(bfd)->conv_table_size)
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#define obj_coff_external_syms(bfd) (coff_data (bfd)->external_syms)
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#define obj_coff_strings(bfd) (coff_data (bfd)->strings)
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#define obj_coff_sym_hashes(bfd) (coff_data (bfd)->sym_hashes)
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/* `Tdata' information kept for COFF files. */
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typedef struct coff_tdata
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{
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struct coff_symbol_struct *symbols; /* symtab for input bfd */
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unsigned int *conversion_table;
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int conv_table_size;
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file_ptr sym_filepos;
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struct coff_ptr_struct *raw_syments;
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unsigned int raw_syment_count;
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/* These are only valid once writing has begun */
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long int relocbase;
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/* These members communicate important constants about the symbol table
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to GDB's symbol-reading code. These `constants' unfortunately vary
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from coff implementation to implementation... */
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unsigned local_n_btmask;
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unsigned local_n_btshft;
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unsigned local_n_tmask;
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unsigned local_n_tshift;
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unsigned local_symesz;
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unsigned local_auxesz;
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unsigned local_linesz;
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/* Used by the COFF backend linker. */
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PTR external_syms;
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char *strings;
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struct coff_link_hash_entry **sym_hashes;
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} coff_data_type;
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/* We take the address of the first element of a asymbol to ensure that the
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* macro is only ever applied to an asymbol. */
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#define coffsymbol(asymbol) ((coff_symbol_type *)(&((asymbol)->the_bfd)))
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/* COFF linker hash table entries. */
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struct coff_link_hash_entry
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{
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struct bfd_link_hash_entry root;
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/* Symbol index in output file. Set to -1 initially. Set to -2 if
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there is a reloc against this symbol. */
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long indx;
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/* Symbol type. */
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unsigned short type;
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/* Symbol class. */
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unsigned char class;
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/* Number of auxiliary entries. */
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char numaux;
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/* BFD to take auxiliary entries from. */
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bfd *auxbfd;
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/* Pointer to array of auxiliary entries, if any. */
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union internal_auxent *aux;
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};
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/* COFF linker hash table. */
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struct coff_link_hash_table
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{
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struct bfd_link_hash_table root;
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};
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/* Look up an entry in a COFF linker hash table. */
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#define coff_link_hash_lookup(table, string, create, copy, follow) \
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((struct coff_link_hash_entry *) \
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bfd_link_hash_lookup (&(table)->root, (string), (create), \
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(copy), (follow)))
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/* Traverse a COFF linker hash table. */
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#define coff_link_hash_traverse(table, func, info) \
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(bfd_link_hash_traverse \
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(&(table)->root, \
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(boolean (*) PARAMS ((struct bfd_link_hash_entry *, PTR))) (func), \
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(info)))
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/* Get the COFF linker hash table from a link_info structure. */
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#define coff_hash_table(p) ((struct coff_link_hash_table *) ((p)->hash))
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/* Functions in coffgen.c. */
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extern const bfd_target *coff_object_p PARAMS ((bfd *));
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extern struct sec *coff_section_from_bfd_index PARAMS ((bfd *, int));
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extern long coff_get_symtab_upper_bound PARAMS ((bfd *));
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extern long coff_get_symtab PARAMS ((bfd *, asymbol **));
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extern int coff_count_linenumbers PARAMS ((bfd *));
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extern struct coff_symbol_struct *coff_symbol_from PARAMS ((bfd *, asymbol *));
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extern boolean coff_renumber_symbols PARAMS ((bfd *));
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extern void coff_mangle_symbols PARAMS ((bfd *));
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extern boolean coff_write_symbols PARAMS ((bfd *));
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extern boolean coff_write_linenumbers PARAMS ((bfd *));
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extern alent *coff_get_lineno PARAMS ((bfd *, asymbol *));
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extern asymbol *coff_section_symbol PARAMS ((bfd *, char *));
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extern struct coff_ptr_struct *coff_get_normalized_symtab PARAMS ((bfd *));
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extern long coff_get_reloc_upper_bound PARAMS ((bfd *, sec_ptr));
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extern asymbol *coff_make_empty_symbol PARAMS ((bfd *));
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extern void coff_print_symbol PARAMS ((bfd *, PTR filep, asymbol *,
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bfd_print_symbol_type how));
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extern void coff_get_symbol_info PARAMS ((bfd *, asymbol *,
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symbol_info *ret));
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extern asymbol *coff_bfd_make_debug_symbol PARAMS ((bfd *, PTR,
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unsigned long));
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extern boolean coff_find_nearest_line PARAMS ((bfd *,
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asection *,
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asymbol **,
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bfd_vma offset,
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CONST char **filename_ptr,
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CONST char **functionname_ptr,
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unsigned int *line_ptr));
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extern int coff_sizeof_headers PARAMS ((bfd *, boolean reloc));
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extern boolean bfd_coff_reloc16_relax_section
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PARAMS ((bfd *, asection *, struct bfd_link_info *, boolean *));
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extern bfd_byte *bfd_coff_reloc16_get_relocated_section_contents
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PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_order *,
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bfd_byte *, boolean relocateable, asymbol **));
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extern bfd_vma bfd_coff_reloc16_get_value PARAMS ((arelent *,
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struct bfd_link_info *,
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asection *));
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extern void bfd_perform_slip PARAMS ((bfd *abfd, unsigned int slip,
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asection *input_section,
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bfd_vma val));
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/* Functions in cofflink.c. */
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extern struct bfd_link_hash_table *_bfd_coff_link_hash_table_create
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PARAMS ((bfd *));
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extern boolean _bfd_coff_link_add_symbols
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PARAMS ((bfd *, struct bfd_link_info *));
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extern boolean _bfd_coff_final_link
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PARAMS ((bfd *, struct bfd_link_info *));
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/* And more taken from the source .. */
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typedef struct coff_ptr_struct
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{
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/* Remembers the offset from the first symbol in the file for
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this symbol. Generated by coff_renumber_symbols. */
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unsigned int offset;
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/* Should the value of this symbol be renumbered. Used for
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XCOFF C_BSTAT symbols. Set by coff_slurp_symbol_table. */
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unsigned int fix_value : 1;
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/* Should the tag field of this symbol be renumbered.
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Created by coff_pointerize_aux. */
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unsigned int fix_tag : 1;
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/* Should the endidx field of this symbol be renumbered.
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Created by coff_pointerize_aux. */
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unsigned int fix_end : 1;
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/* Should the x_csect.x_scnlen field be renumbered.
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Created by coff_slurp_symbol_table. */
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unsigned int fix_scnlen : 1;
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/* The container for the symbol structure as read and translated
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from the file. */
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union {
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union internal_auxent auxent;
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struct internal_syment syment;
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} u;
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} combined_entry_type;
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/* Each canonical asymbol really looks like this: */
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typedef struct coff_symbol_struct
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{
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/* The actual symbol which the rest of BFD works with */
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asymbol symbol;
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/* A pointer to the hidden information for this symbol */
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combined_entry_type *native;
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/* A pointer to the linenumber information for this symbol */
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struct lineno_cache_entry *lineno;
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/* Have the line numbers been relocated yet ? */
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boolean done_lineno;
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} coff_symbol_type;
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typedef struct
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{
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void (*_bfd_coff_swap_aux_in) PARAMS ((
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bfd *abfd,
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PTR ext,
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int type,
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int class,
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int indaux,
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int numaux,
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PTR in));
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void (*_bfd_coff_swap_sym_in) PARAMS ((
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bfd *abfd ,
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PTR ext,
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PTR in));
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void (*_bfd_coff_swap_lineno_in) PARAMS ((
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bfd *abfd,
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PTR ext,
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PTR in));
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unsigned int (*_bfd_coff_swap_aux_out) PARAMS ((
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bfd *abfd,
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PTR in,
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int type,
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int class,
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int indaux,
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int numaux,
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PTR ext));
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unsigned int (*_bfd_coff_swap_sym_out) PARAMS ((
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bfd *abfd,
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PTR in,
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PTR ext));
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unsigned int (*_bfd_coff_swap_lineno_out) PARAMS ((
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bfd *abfd,
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PTR in,
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PTR ext));
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unsigned int (*_bfd_coff_swap_reloc_out) PARAMS ((
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bfd *abfd,
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PTR src,
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PTR dst));
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unsigned int (*_bfd_coff_swap_filehdr_out) PARAMS ((
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bfd *abfd,
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PTR in,
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PTR out));
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unsigned int (*_bfd_coff_swap_aouthdr_out) PARAMS ((
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bfd *abfd,
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PTR in,
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PTR out));
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unsigned int (*_bfd_coff_swap_scnhdr_out) PARAMS ((
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bfd *abfd,
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PTR in,
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PTR out));
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unsigned int _bfd_filhsz;
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unsigned int _bfd_aoutsz;
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unsigned int _bfd_scnhsz;
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unsigned int _bfd_symesz;
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unsigned int _bfd_auxesz;
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unsigned int _bfd_relsz;
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unsigned int _bfd_linesz;
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boolean _bfd_coff_long_filenames;
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void (*_bfd_coff_swap_filehdr_in) PARAMS ((
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bfd *abfd,
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PTR ext,
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PTR in));
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void (*_bfd_coff_swap_aouthdr_in) PARAMS ((
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bfd *abfd,
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PTR ext,
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PTR in));
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void (*_bfd_coff_swap_scnhdr_in) PARAMS ((
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bfd *abfd,
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PTR ext,
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PTR in));
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void (*_bfd_coff_swap_reloc_in) PARAMS ((
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bfd *abfd,
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PTR ext,
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PTR in));
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boolean (*_bfd_coff_bad_format_hook) PARAMS ((
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bfd *abfd,
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PTR internal_filehdr));
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boolean (*_bfd_coff_set_arch_mach_hook) PARAMS ((
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bfd *abfd,
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PTR internal_filehdr));
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PTR (*_bfd_coff_mkobject_hook) PARAMS ((
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bfd *abfd,
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PTR internal_filehdr,
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PTR internal_aouthdr));
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flagword (*_bfd_styp_to_sec_flags_hook) PARAMS ((
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bfd *abfd,
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PTR internal_scnhdr,
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const char *name));
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asection *(*_bfd_make_section_hook) PARAMS ((
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bfd *abfd,
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char *name));
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void (*_bfd_set_alignment_hook) PARAMS ((
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bfd *abfd,
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asection *sec,
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PTR internal_scnhdr));
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boolean (*_bfd_coff_slurp_symbol_table) PARAMS ((
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bfd *abfd));
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boolean (*_bfd_coff_symname_in_debug) PARAMS ((
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bfd *abfd,
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struct internal_syment *sym));
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void (*_bfd_coff_reloc16_extra_cases) PARAMS ((
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bfd *abfd,
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struct bfd_link_info *link_info,
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struct bfd_link_order *link_order,
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arelent *reloc,
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bfd_byte *data,
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unsigned int *src_ptr,
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unsigned int *dst_ptr));
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int (*_bfd_coff_reloc16_estimate) PARAMS ((
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bfd *abfd,
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asection *input_section,
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arelent *r,
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unsigned int shrink,
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struct bfd_link_info *link_info));
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boolean (*_bfd_coff_sym_is_global) PARAMS ((
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bfd *abfd,
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struct internal_syment *));
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void (*_bfd_coff_compute_section_file_positions) PARAMS ((
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bfd *abfd));
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boolean (*_bfd_coff_relocate_section) PARAMS ((
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bfd *output_bfd,
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struct bfd_link_info *info,
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bfd *input_bfd,
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asection *input_section,
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bfd_byte *contents,
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struct internal_reloc *relocs,
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struct internal_syment *syms,
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asection **sections));
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} bfd_coff_backend_data;
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#define coff_backend_info(abfd) ((bfd_coff_backend_data *) (abfd)->xvec->backend_data)
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#define bfd_coff_swap_aux_in(a,e,t,c,ind,num,i) \
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((coff_backend_info (a)->_bfd_coff_swap_aux_in) (a,e,t,c,ind,num,i))
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#define bfd_coff_swap_sym_in(a,e,i) \
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((coff_backend_info (a)->_bfd_coff_swap_sym_in) (a,e,i))
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#define bfd_coff_swap_lineno_in(a,e,i) \
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((coff_backend_info ( a)->_bfd_coff_swap_lineno_in) (a,e,i))
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#define bfd_coff_swap_reloc_out(abfd, i, o) \
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((coff_backend_info (abfd)->_bfd_coff_swap_reloc_out) (abfd, i, o))
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#define bfd_coff_swap_lineno_out(abfd, i, o) \
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((coff_backend_info (abfd)->_bfd_coff_swap_lineno_out) (abfd, i, o))
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#define bfd_coff_swap_aux_out(a,i,t,c,ind,num,o) \
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((coff_backend_info (a)->_bfd_coff_swap_aux_out) (a,i,t,c,ind,num,o))
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#define bfd_coff_swap_sym_out(abfd, i,o) \
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((coff_backend_info (abfd)->_bfd_coff_swap_sym_out) (abfd, i, o))
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#define bfd_coff_swap_scnhdr_out(abfd, i,o) \
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((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_out) (abfd, i, o))
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#define bfd_coff_swap_filehdr_out(abfd, i,o) \
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((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_out) (abfd, i, o))
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#define bfd_coff_swap_aouthdr_out(abfd, i,o) \
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((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_out) (abfd, i, o))
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#define bfd_coff_filhsz(abfd) (coff_backend_info (abfd)->_bfd_filhsz)
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#define bfd_coff_aoutsz(abfd) (coff_backend_info (abfd)->_bfd_aoutsz)
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#define bfd_coff_scnhsz(abfd) (coff_backend_info (abfd)->_bfd_scnhsz)
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#define bfd_coff_symesz(abfd) (coff_backend_info (abfd)->_bfd_symesz)
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#define bfd_coff_auxesz(abfd) (coff_backend_info (abfd)->_bfd_auxesz)
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#define bfd_coff_relsz(abfd) (coff_backend_info (abfd)->_bfd_relsz)
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#define bfd_coff_linesz(abfd) (coff_backend_info (abfd)->_bfd_linesz)
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#define bfd_coff_long_filenames(abfd) (coff_backend_info (abfd)->_bfd_coff_long_filenames)
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#define bfd_coff_swap_filehdr_in(abfd, i,o) \
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((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_in) (abfd, i, o))
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#define bfd_coff_swap_aouthdr_in(abfd, i,o) \
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((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_in) (abfd, i, o))
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#define bfd_coff_swap_scnhdr_in(abfd, i,o) \
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((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_in) (abfd, i, o))
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#define bfd_coff_swap_reloc_in(abfd, i, o) \
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((coff_backend_info (abfd)->_bfd_coff_swap_reloc_in) (abfd, i, o))
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#define bfd_coff_bad_format_hook(abfd, filehdr) \
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((coff_backend_info (abfd)->_bfd_coff_bad_format_hook) (abfd, filehdr))
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#define bfd_coff_set_arch_mach_hook(abfd, filehdr)\
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((coff_backend_info (abfd)->_bfd_coff_set_arch_mach_hook) (abfd, filehdr))
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#define bfd_coff_mkobject_hook(abfd, filehdr, aouthdr)\
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((coff_backend_info (abfd)->_bfd_coff_mkobject_hook) (abfd, filehdr, aouthdr))
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#define bfd_coff_styp_to_sec_flags_hook(abfd, scnhdr, name)\
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((coff_backend_info (abfd)->_bfd_styp_to_sec_flags_hook) (abfd, scnhdr, name))
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#define bfd_coff_make_section_hook(abfd, name)\
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((coff_backend_info (abfd)->_bfd_make_section_hook) (abfd, name))
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#define bfd_coff_set_alignment_hook(abfd, sec, scnhdr)\
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((coff_backend_info (abfd)->_bfd_set_alignment_hook) (abfd, sec, scnhdr))
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#define bfd_coff_slurp_symbol_table(abfd)\
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((coff_backend_info (abfd)->_bfd_coff_slurp_symbol_table) (abfd))
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#define bfd_coff_symname_in_debug(abfd, sym)\
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((coff_backend_info (abfd)->_bfd_coff_symname_in_debug) (abfd, sym))
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#define bfd_coff_reloc16_extra_cases(abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr)\
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((coff_backend_info (abfd)->_bfd_coff_reloc16_extra_cases)\
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(abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr))
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#define bfd_coff_reloc16_estimate(abfd, section, reloc, shrink, link_info)\
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((coff_backend_info (abfd)->_bfd_coff_reloc16_estimate)\
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(abfd, section, reloc, shrink, link_info))
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#define bfd_coff_sym_is_global(abfd, sym)\
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((coff_backend_info (abfd)->_bfd_coff_sym_is_global)\
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(abfd, sym))
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#define bfd_coff_compute_section_file_positions(abfd)\
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((coff_backend_info (abfd)->_bfd_coff_compute_section_file_positions)\
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(abfd))
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#define bfd_coff_relocate_section(obfd,info,ibfd,o,con,rel,isyms,secs)\
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((coff_backend_info (ibfd)->_bfd_coff_relocate_section)\
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(obfd, info, ibfd, o, con, rel, isyms, secs))
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