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- /* BFD COFF object file private structure.
- Copyright (C) 1990, 91, 92, 93, 94, 1995 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
-
- #include "bfdlink.h"
-
- /* Object file tdata; access macros */
-
- #define coff_data(bfd) ((bfd)->tdata.coff_obj_data)
- #define exec_hdr(bfd) (coff_data(bfd)->hdr)
- #define obj_symbols(bfd) (coff_data(bfd)->symbols)
- #define obj_sym_filepos(bfd) (coff_data(bfd)->sym_filepos)
-
- #define obj_relocbase(bfd) (coff_data(bfd)->relocbase)
- #define obj_raw_syments(bfd) (coff_data(bfd)->raw_syments)
- #define obj_raw_syment_count(bfd) (coff_data(bfd)->raw_syment_count)
- #define obj_convert(bfd) (coff_data(bfd)->conversion_table)
- #define obj_conv_table_size(bfd) (coff_data(bfd)->conv_table_size)
-
- #define obj_coff_external_syms(bfd) (coff_data (bfd)->external_syms)
- #define obj_coff_strings(bfd) (coff_data (bfd)->strings)
- #define obj_coff_sym_hashes(bfd) (coff_data (bfd)->sym_hashes)
-
- /* `Tdata' information kept for COFF files. */
-
- typedef struct coff_tdata
- {
- struct coff_symbol_struct *symbols; /* symtab for input bfd */
- unsigned int *conversion_table;
- int conv_table_size;
- file_ptr sym_filepos;
-
- struct coff_ptr_struct *raw_syments;
- unsigned int raw_syment_count;
-
- /* These are only valid once writing has begun */
- long int relocbase;
-
- /* These members communicate important constants about the symbol table
- to GDB's symbol-reading code. These `constants' unfortunately vary
- from coff implementation to implementation... */
- unsigned local_n_btmask;
- unsigned local_n_btshft;
- unsigned local_n_tmask;
- unsigned local_n_tshift;
- unsigned local_symesz;
- unsigned local_auxesz;
- unsigned local_linesz;
-
- /* Used by the COFF backend linker. */
- PTR external_syms;
- char *strings;
- struct coff_link_hash_entry **sym_hashes;
- } coff_data_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 coffsymbol(asymbol) ((coff_symbol_type *)(&((asymbol)->the_bfd)))
-
- /* COFF linker hash table entries. */
-
- struct coff_link_hash_entry
- {
- struct bfd_link_hash_entry root;
-
- /* Symbol index in output file. Set to -1 initially. Set to -2 if
- there is a reloc against this symbol. */
- long indx;
-
- /* Symbol type. */
- unsigned short type;
-
- /* Symbol class. */
- unsigned char class;
-
- /* Number of auxiliary entries. */
- char numaux;
-
- /* BFD to take auxiliary entries from. */
- bfd *auxbfd;
-
- /* Pointer to array of auxiliary entries, if any. */
- union internal_auxent *aux;
- };
-
- /* COFF linker hash table. */
-
- struct coff_link_hash_table
- {
- struct bfd_link_hash_table root;
- };
-
- /* Look up an entry in a COFF linker hash table. */
-
- #define coff_link_hash_lookup(table, string, create, copy, follow) \
- ((struct coff_link_hash_entry *) \
- bfd_link_hash_lookup (&(table)->root, (string), (create), \
- (copy), (follow)))
-
- /* Traverse a COFF linker hash table. */
-
- #define coff_link_hash_traverse(table, func, info) \
- (bfd_link_hash_traverse \
- (&(table)->root, \
- (boolean (*) PARAMS ((struct bfd_link_hash_entry *, PTR))) (func), \
- (info)))
-
- /* Get the COFF linker hash table from a link_info structure. */
-
- #define coff_hash_table(p) ((struct coff_link_hash_table *) ((p)->hash))
-
- /* Functions in coffgen.c. */
- extern const bfd_target *coff_object_p PARAMS ((bfd *));
- extern struct sec *coff_section_from_bfd_index PARAMS ((bfd *, int));
- extern long coff_get_symtab_upper_bound PARAMS ((bfd *));
- extern long coff_get_symtab PARAMS ((bfd *, asymbol **));
- extern int coff_count_linenumbers PARAMS ((bfd *));
- extern struct coff_symbol_struct *coff_symbol_from PARAMS ((bfd *, asymbol *));
- extern boolean coff_renumber_symbols PARAMS ((bfd *));
- extern void coff_mangle_symbols PARAMS ((bfd *));
- extern boolean coff_write_symbols PARAMS ((bfd *));
- extern boolean coff_write_linenumbers PARAMS ((bfd *));
- extern alent *coff_get_lineno PARAMS ((bfd *, asymbol *));
- extern asymbol *coff_section_symbol PARAMS ((bfd *, char *));
- extern struct coff_ptr_struct *coff_get_normalized_symtab PARAMS ((bfd *));
- extern long coff_get_reloc_upper_bound PARAMS ((bfd *, sec_ptr));
- extern asymbol *coff_make_empty_symbol PARAMS ((bfd *));
- extern void coff_print_symbol PARAMS ((bfd *, PTR filep, asymbol *,
- bfd_print_symbol_type how));
- extern void coff_get_symbol_info PARAMS ((bfd *, asymbol *,
- symbol_info *ret));
- extern asymbol *coff_bfd_make_debug_symbol PARAMS ((bfd *, PTR,
- unsigned long));
- extern boolean coff_find_nearest_line PARAMS ((bfd *,
- asection *,
- asymbol **,
- bfd_vma offset,
- CONST char **filename_ptr,
- CONST char **functionname_ptr,
- unsigned int *line_ptr));
- extern int coff_sizeof_headers PARAMS ((bfd *, boolean reloc));
- extern boolean bfd_coff_reloc16_relax_section
- PARAMS ((bfd *, asection *, struct bfd_link_info *, boolean *));
- extern bfd_byte *bfd_coff_reloc16_get_relocated_section_contents
- PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_order *,
- bfd_byte *, boolean relocateable, asymbol **));
- extern bfd_vma bfd_coff_reloc16_get_value PARAMS ((arelent *,
- struct bfd_link_info *,
- asection *));
- extern void bfd_perform_slip PARAMS ((bfd *abfd, unsigned int slip,
- asection *input_section,
- bfd_vma val));
-
- /* Functions in cofflink.c. */
-
- extern struct bfd_link_hash_table *_bfd_coff_link_hash_table_create
- PARAMS ((bfd *));
- extern boolean _bfd_coff_link_add_symbols
- PARAMS ((bfd *, struct bfd_link_info *));
- extern boolean _bfd_coff_final_link
- PARAMS ((bfd *, struct bfd_link_info *));
- extern boolean _bfd_coff_generic_relocate_section
- PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
- struct internal_reloc *, struct internal_syment *, asection **));
-
- /* And more taken from the source .. */
-
- 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_slurp_symbol_table. */
- unsigned int fix_scnlen : 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 ? */
- boolean done_lineno;
- } coff_symbol_type;
- typedef struct
- {
- void (*_bfd_coff_swap_aux_in) PARAMS ((
- bfd *abfd,
- PTR ext,
- int type,
- int class,
- int indaux,
- int numaux,
- PTR in));
-
- void (*_bfd_coff_swap_sym_in) PARAMS ((
- bfd *abfd ,
- PTR ext,
- PTR in));
-
- void (*_bfd_coff_swap_lineno_in) PARAMS ((
- bfd *abfd,
- PTR ext,
- PTR in));
-
- unsigned int (*_bfd_coff_swap_aux_out) PARAMS ((
- bfd *abfd,
- PTR in,
- int type,
- int class,
- int indaux,
- int numaux,
- PTR ext));
-
- unsigned int (*_bfd_coff_swap_sym_out) PARAMS ((
- bfd *abfd,
- PTR in,
- PTR ext));
-
- unsigned int (*_bfd_coff_swap_lineno_out) PARAMS ((
- bfd *abfd,
- PTR in,
- PTR ext));
-
- unsigned int (*_bfd_coff_swap_reloc_out) PARAMS ((
- bfd *abfd,
- PTR src,
- PTR dst));
-
- unsigned int (*_bfd_coff_swap_filehdr_out) PARAMS ((
- bfd *abfd,
- PTR in,
- PTR out));
-
- unsigned int (*_bfd_coff_swap_aouthdr_out) PARAMS ((
- bfd *abfd,
- PTR in,
- PTR out));
-
- unsigned int (*_bfd_coff_swap_scnhdr_out) PARAMS ((
- bfd *abfd,
- PTR in,
- PTR out));
-
- 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;
- boolean _bfd_coff_long_filenames;
- void (*_bfd_coff_swap_filehdr_in) PARAMS ((
- bfd *abfd,
- PTR ext,
- PTR in));
- void (*_bfd_coff_swap_aouthdr_in) PARAMS ((
- bfd *abfd,
- PTR ext,
- PTR in));
- void (*_bfd_coff_swap_scnhdr_in) PARAMS ((
- bfd *abfd,
- PTR ext,
- PTR in));
- void (*_bfd_coff_swap_reloc_in) PARAMS ((
- bfd *abfd,
- PTR ext,
- PTR in));
- boolean (*_bfd_coff_bad_format_hook) PARAMS ((
- bfd *abfd,
- PTR internal_filehdr));
- boolean (*_bfd_coff_set_arch_mach_hook) PARAMS ((
- bfd *abfd,
- PTR internal_filehdr));
- PTR (*_bfd_coff_mkobject_hook) PARAMS ((
- bfd *abfd,
- PTR internal_filehdr,
- PTR internal_aouthdr));
- flagword (*_bfd_styp_to_sec_flags_hook) PARAMS ((
- bfd *abfd,
- PTR internal_scnhdr,
- const char *name));
- asection *(*_bfd_make_section_hook) PARAMS ((
- bfd *abfd,
- char *name));
- void (*_bfd_set_alignment_hook) PARAMS ((
- bfd *abfd,
- asection *sec,
- PTR internal_scnhdr));
- boolean (*_bfd_coff_slurp_symbol_table) PARAMS ((
- bfd *abfd));
- boolean (*_bfd_coff_symname_in_debug) PARAMS ((
- bfd *abfd,
- struct internal_syment *sym));
- void (*_bfd_coff_reloc16_extra_cases) PARAMS ((
- bfd *abfd,
- struct bfd_link_info *link_info,
- struct bfd_link_order *link_order,
- arelent *reloc,
- bfd_byte *data,
- unsigned int *src_ptr,
- unsigned int *dst_ptr));
- int (*_bfd_coff_reloc16_estimate) PARAMS ((
- bfd *abfd,
- asection *input_section,
- arelent *r,
- unsigned int shrink,
- struct bfd_link_info *link_info));
- boolean (*_bfd_coff_sym_is_global) PARAMS ((
- bfd *abfd,
- struct internal_syment *));
- void (*_bfd_coff_compute_section_file_positions) PARAMS ((
- bfd *abfd));
- boolean (*_bfd_coff_relocate_section) PARAMS ((
- bfd *output_bfd,
- struct bfd_link_info *info,
- bfd *input_bfd,
- asection *input_section,
- bfd_byte *contents,
- struct internal_reloc *relocs,
- struct internal_syment *syms,
- asection **sections));
- reloc_howto_type *(*_bfd_coff_rtype_to_howto) PARAMS ((
- bfd *abfd,
- asection *sec,
- struct internal_reloc *rel,
- struct coff_link_hash_entry *h,
- struct internal_syment *sym,
- bfd_vma *addendp));
-
- } 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_long_filenames(abfd) (coff_backend_info (abfd)->_bfd_coff_long_filenames)
- #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)\
- ((coff_backend_info (abfd)->_bfd_styp_to_sec_flags_hook) (abfd, scnhdr, name))
-
- #define bfd_coff_make_section_hook(abfd, name)\
- ((coff_backend_info (abfd)->_bfd_make_section_hook) (abfd, name))
-
- #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_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_sym_is_global(abfd, sym)\
- ((coff_backend_info (abfd)->_bfd_coff_sym_is_global)\
- (abfd, sym))
-
- #define bfd_coff_compute_section_file_positions(abfd)\
- ((coff_backend_info (abfd)->_bfd_coff_compute_section_file_positions)\
- (abfd))
-
- #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))
-
-