1 /* libbfd.h -- Declarations used by bfd library *implementation*.
2 (This include file is not for users of the library.)
4 Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
5 1999, 2000, 2001, 2002, 2003, 2004, 2005
6 Free Software Foundation, Inc.
8 Written by Cygnus Support.
10 This file is part of BFD, the Binary File Descriptor library.
12 This program is free software; you can redistribute it and/or modify
13 it under the terms of the GNU General Public License as published by
14 the Free Software Foundation; either version 2 of the License, or
15 (at your option) any later version.
17 This program is distributed in the hope that it will be useful,
18 but WITHOUT ANY WARRANTY; without even the implied warranty of
19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 GNU General Public License for more details.
22 You should have received a copy of the GNU General Public License
23 along with this program; if not, write to the Free Software
24 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
28 /* Align an address upward to a boundary, expressed as a number of bytes.
29 E.g. align to an 8-byte boundary with argument of 8. Take care never
30 to wrap around if the address is within boundary-1 of the end of the
32 #define BFD_ALIGN(this, boundary) \
33 ((((bfd_vma) (this) + (boundary) - 1) >= (bfd_vma) (this)) \
34 ? (((bfd_vma) (this) + ((boundary) - 1)) & ~ (bfd_vma) ((boundary)-1)) \
37 /* If you want to read and write large blocks, you might want to do it
38 in quanta of this amount */
39 #define DEFAULT_BUFFERSIZE 8192
41 /* Set a tdata field. Can't use the other macros for this, since they
42 do casts, and casting to the left of assignment isn't portable. */
43 #define set_tdata(bfd, v) ((bfd)->tdata.any = (v))
45 /* If BFD_IN_MEMORY is set for a BFD, then the iostream fields points
46 to an instance of this structure. */
52 /* Buffer holding contents of BFD. */
56 /* tdata for an archive. For an input archive, cache
57 needs to be free()'d. For an output archive, symdefs do. */
60 file_ptr first_file_filepos;
61 /* Speed up searching the armap */
63 bfd *archive_head; /* Only interesting in output routines */
64 carsym *symdefs; /* the symdef entries */
65 symindex symdef_count; /* how many there are */
66 char *extended_names; /* clever intel extension */
67 bfd_size_type extended_names_size; /* Size of extended names */
68 /* when more compilers are standard C, this can be a time_t */
69 long armap_timestamp; /* Timestamp value written into armap.
70 This is used for BSD archives to check
71 that the timestamp is recent enough
72 for the BSD linker to not complain,
73 just before we finish writing an
75 file_ptr armap_datepos; /* Position within archive to seek to
76 rewrite the date field. */
77 void *tdata; /* Backend specific information. */
80 #define bfd_ardata(bfd) ((bfd)->tdata.aout_ar_data)
82 /* Goes in bfd's arelt_data slot */
84 char * arch_header; /* it's actually a string */
85 unsigned int parsed_size; /* octets of filesize not including ar_hdr */
86 char *filename; /* null-terminated */
89 #define arelt_size(bfd) (((struct areltdata *)((bfd)->arelt_data))->parsed_size)
91 extern void *bfd_malloc
93 extern void *bfd_realloc
94 (void *, bfd_size_type);
95 extern void *bfd_zmalloc
97 extern void *bfd_malloc2
98 (bfd_size_type, bfd_size_type);
99 extern void *bfd_realloc2
100 (void *, bfd_size_type, bfd_size_type);
101 extern void *bfd_zmalloc2
102 (bfd_size_type, bfd_size_type);
104 extern void _bfd_default_error_handler (const char *s, ...);
105 extern bfd_error_handler_type _bfd_error_handler;
107 /* These routines allocate and free things on the BFD's objalloc. */
109 extern void *bfd_alloc
110 (bfd *, bfd_size_type);
111 extern void *bfd_zalloc
112 (bfd *, bfd_size_type);
113 extern void *bfd_alloc2
114 (bfd *, bfd_size_type, bfd_size_type);
115 extern void *bfd_zalloc2
116 (bfd *, bfd_size_type, bfd_size_type);
117 extern void bfd_release
120 bfd * _bfd_create_empty_archive_element_shell
122 bfd * _bfd_look_for_bfd_in_cache
124 bfd_boolean _bfd_add_bfd_to_archive_cache
125 (bfd *, file_ptr, bfd *);
126 bfd_boolean _bfd_generic_mkarchive
128 const bfd_target *bfd_generic_archive_p
130 bfd_boolean bfd_slurp_armap
132 bfd_boolean bfd_slurp_bsd_armap_f2
134 #define bfd_slurp_bsd_armap bfd_slurp_armap
135 #define bfd_slurp_coff_armap bfd_slurp_armap
136 bfd_boolean _bfd_slurp_extended_name_table
138 extern bfd_boolean _bfd_construct_extended_name_table
139 (bfd *, bfd_boolean, char **, bfd_size_type *);
140 bfd_boolean _bfd_write_archive_contents
142 bfd_boolean _bfd_compute_and_write_armap
143 (bfd *, unsigned int elength);
144 bfd *_bfd_get_elt_at_filepos
145 (bfd *archive, file_ptr filepos);
146 extern bfd *_bfd_generic_get_elt_at_index
153 bfd_boolean bfd_false
157 void *bfd_nullvoidptr
170 bfd *_bfd_new_bfd_contained_in
172 const bfd_target *_bfd_dummy_target
175 void bfd_dont_truncate_arname
176 (bfd *abfd, const char *filename, char *hdr);
177 void bfd_bsd_truncate_arname
178 (bfd *abfd, const char *filename, char *hdr);
179 void bfd_gnu_truncate_arname
180 (bfd *abfd, const char *filename, char *hdr);
182 bfd_boolean bsd_write_armap
183 (bfd *arch, unsigned int elength, struct orl *map, unsigned int orl_count,
186 bfd_boolean coff_write_armap
187 (bfd *arch, unsigned int elength, struct orl *map, unsigned int orl_count,
190 extern void *_bfd_generic_read_ar_hdr
192 extern void _bfd_ar_spacepad
193 (char *, size_t, const char *, long);
195 extern void *_bfd_generic_read_ar_hdr_mag
196 (bfd *, const char *);
198 bfd * bfd_generic_openr_next_archived_file
199 (bfd *archive, bfd *last_file);
201 int bfd_generic_stat_arch_elt
202 (bfd *, struct stat *);
204 #define _bfd_read_ar_hdr(abfd) \
205 BFD_SEND (abfd, _bfd_read_ar_hdr_fn, (abfd))
207 /* Generic routines to use for BFD_JUMP_TABLE_GENERIC. Use
208 BFD_JUMP_TABLE_GENERIC (_bfd_generic). */
210 #define _bfd_generic_close_and_cleanup bfd_true
211 #define _bfd_generic_bfd_free_cached_info bfd_true
212 #define _bfd_generic_new_section_hook \
213 ((bfd_boolean (*) (bfd *, asection *)) bfd_true)
214 extern bfd_boolean _bfd_generic_get_section_contents
215 (bfd *, asection *, void *, file_ptr, bfd_size_type);
216 extern bfd_boolean _bfd_generic_get_section_contents_in_window
217 (bfd *, asection *, bfd_window *, file_ptr, bfd_size_type);
219 /* Generic routines to use for BFD_JUMP_TABLE_COPY. Use
220 BFD_JUMP_TABLE_COPY (_bfd_generic). */
222 #define _bfd_generic_bfd_copy_private_bfd_data \
223 ((bfd_boolean (*) (bfd *, bfd *)) bfd_true)
224 #define _bfd_generic_bfd_merge_private_bfd_data \
225 ((bfd_boolean (*) (bfd *, bfd *)) bfd_true)
226 #define _bfd_generic_bfd_set_private_flags \
227 ((bfd_boolean (*) (bfd *, flagword)) bfd_true)
228 #define _bfd_generic_bfd_copy_private_section_data \
229 ((bfd_boolean (*) (bfd *, asection *, bfd *, asection *)) bfd_true)
230 #define _bfd_generic_bfd_copy_private_symbol_data \
231 ((bfd_boolean (*) (bfd *, asymbol *, bfd *, asymbol *)) bfd_true)
232 #define _bfd_generic_bfd_copy_private_header_data \
233 ((bfd_boolean (*) (bfd *, bfd *)) bfd_true)
234 #define _bfd_generic_bfd_print_private_bfd_data \
235 ((bfd_boolean (*) (bfd *, void *)) bfd_true)
237 extern bfd_boolean _bfd_generic_init_private_section_data
238 (bfd *, asection *, bfd *, asection *, struct bfd_link_info *);
240 /* Routines to use for BFD_JUMP_TABLE_CORE when there is no core file
241 support. Use BFD_JUMP_TABLE_CORE (_bfd_nocore). */
243 extern char *_bfd_nocore_core_file_failing_command
245 extern int _bfd_nocore_core_file_failing_signal
247 extern bfd_boolean _bfd_nocore_core_file_matches_executable_p
250 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE when there is no archive
251 file support. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive). */
253 #define _bfd_noarchive_slurp_armap bfd_false
254 #define _bfd_noarchive_slurp_extended_name_table bfd_false
255 #define _bfd_noarchive_construct_extended_name_table \
256 ((bfd_boolean (*) (bfd *, char **, bfd_size_type *, const char **)) \
258 #define _bfd_noarchive_truncate_arname \
259 ((void (*) (bfd *, const char *, char *)) bfd_void)
260 #define _bfd_noarchive_write_armap \
261 ((bfd_boolean (*) (bfd *, unsigned int, struct orl *, unsigned int, int)) \
263 #define _bfd_noarchive_read_ar_hdr bfd_nullvoidptr
264 #define _bfd_noarchive_openr_next_archived_file \
265 ((bfd *(*) (bfd *, bfd *)) bfd_nullvoidptr)
266 #define _bfd_noarchive_get_elt_at_index \
267 ((bfd *(*) (bfd *, symindex)) bfd_nullvoidptr)
268 #define _bfd_noarchive_generic_stat_arch_elt bfd_generic_stat_arch_elt
269 #define _bfd_noarchive_update_armap_timestamp bfd_false
271 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get BSD style
272 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_bsd). */
274 #define _bfd_archive_bsd_slurp_armap bfd_slurp_bsd_armap
275 #define _bfd_archive_bsd_slurp_extended_name_table \
276 _bfd_slurp_extended_name_table
277 extern bfd_boolean _bfd_archive_bsd_construct_extended_name_table
278 (bfd *, char **, bfd_size_type *, const char **);
279 #define _bfd_archive_bsd_truncate_arname bfd_bsd_truncate_arname
280 #define _bfd_archive_bsd_write_armap bsd_write_armap
281 #define _bfd_archive_bsd_read_ar_hdr _bfd_generic_read_ar_hdr
282 #define _bfd_archive_bsd_openr_next_archived_file \
283 bfd_generic_openr_next_archived_file
284 #define _bfd_archive_bsd_get_elt_at_index _bfd_generic_get_elt_at_index
285 #define _bfd_archive_bsd_generic_stat_arch_elt \
286 bfd_generic_stat_arch_elt
287 extern bfd_boolean _bfd_archive_bsd_update_armap_timestamp
290 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get COFF style
291 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff). */
293 #define _bfd_archive_coff_slurp_armap bfd_slurp_coff_armap
294 #define _bfd_archive_coff_slurp_extended_name_table \
295 _bfd_slurp_extended_name_table
296 extern bfd_boolean _bfd_archive_coff_construct_extended_name_table
297 (bfd *, char **, bfd_size_type *, const char **);
298 #define _bfd_archive_coff_truncate_arname bfd_dont_truncate_arname
299 #define _bfd_archive_coff_write_armap coff_write_armap
300 #define _bfd_archive_coff_read_ar_hdr _bfd_generic_read_ar_hdr
301 #define _bfd_archive_coff_openr_next_archived_file \
302 bfd_generic_openr_next_archived_file
303 #define _bfd_archive_coff_get_elt_at_index _bfd_generic_get_elt_at_index
304 #define _bfd_archive_coff_generic_stat_arch_elt \
305 bfd_generic_stat_arch_elt
306 #define _bfd_archive_coff_update_armap_timestamp bfd_true
308 /* Routines to use for BFD_JUMP_TABLE_SYMBOLS where there is no symbol
309 support. Use BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols). */
311 #define _bfd_nosymbols_get_symtab_upper_bound _bfd_n1
312 #define _bfd_nosymbols_canonicalize_symtab \
313 ((long (*) (bfd *, asymbol **)) _bfd_n1)
314 #define _bfd_nosymbols_make_empty_symbol _bfd_generic_make_empty_symbol
315 #define _bfd_nosymbols_print_symbol \
316 ((void (*) (bfd *, void *, asymbol *, bfd_print_symbol_type)) bfd_void)
317 #define _bfd_nosymbols_get_symbol_info \
318 ((void (*) (bfd *, asymbol *, symbol_info *)) bfd_void)
319 #define _bfd_nosymbols_bfd_is_local_label_name \
320 ((bfd_boolean (*) (bfd *, const char *)) bfd_false)
321 #define _bfd_nosymbols_bfd_is_target_special_symbol \
322 ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
323 #define _bfd_nosymbols_get_lineno \
324 ((alent *(*) (bfd *, asymbol *)) bfd_nullvoidptr)
325 #define _bfd_nosymbols_find_nearest_line \
326 ((bfd_boolean (*) (bfd *, asection *, asymbol **, bfd_vma, const char **, \
327 const char **, unsigned int *)) \
329 #define _bfd_nosymbols_find_inliner_info \
330 ((bfd_boolean (*) (bfd *, const char **, const char **, unsigned int *)) \
332 #define _bfd_nosymbols_bfd_make_debug_symbol \
333 ((asymbol *(*) (bfd *, void *, unsigned long)) bfd_nullvoidptr)
334 #define _bfd_nosymbols_read_minisymbols \
335 ((long (*) (bfd *, bfd_boolean, void **, unsigned int *)) _bfd_n1)
336 #define _bfd_nosymbols_minisymbol_to_symbol \
337 ((asymbol *(*) (bfd *, bfd_boolean, const void *, asymbol *)) \
340 /* Routines to use for BFD_JUMP_TABLE_RELOCS when there is no reloc
341 support. Use BFD_JUMP_TABLE_RELOCS (_bfd_norelocs). */
343 #define _bfd_norelocs_get_reloc_upper_bound \
344 ((long (*) (bfd *, asection *)) _bfd_n1)
345 #define _bfd_norelocs_canonicalize_reloc \
346 ((long (*) (bfd *, asection *, arelent **, asymbol **)) _bfd_n1)
347 #define _bfd_norelocs_bfd_reloc_type_lookup \
348 ((reloc_howto_type *(*) (bfd *, bfd_reloc_code_real_type)) bfd_nullvoidptr)
350 /* Routines to use for BFD_JUMP_TABLE_WRITE for targets which may not
351 be written. Use BFD_JUMP_TABLE_WRITE (_bfd_nowrite). */
353 #define _bfd_nowrite_set_arch_mach \
354 ((bfd_boolean (*) (bfd *, enum bfd_architecture, unsigned long)) \
356 #define _bfd_nowrite_set_section_contents \
357 ((bfd_boolean (*) (bfd *, asection *, const void *, file_ptr, bfd_size_type)) \
360 /* Generic routines to use for BFD_JUMP_TABLE_WRITE. Use
361 BFD_JUMP_TABLE_WRITE (_bfd_generic). */
363 #define _bfd_generic_set_arch_mach bfd_default_set_arch_mach
364 extern bfd_boolean _bfd_generic_set_section_contents
365 (bfd *, asection *, const void *, file_ptr, bfd_size_type);
367 /* Routines to use for BFD_JUMP_TABLE_LINK for targets which do not
368 support linking. Use BFD_JUMP_TABLE_LINK (_bfd_nolink). */
370 #define _bfd_nolink_sizeof_headers ((int (*) (bfd *, bfd_boolean)) bfd_0)
371 #define _bfd_nolink_bfd_get_relocated_section_contents \
372 ((bfd_byte *(*) (bfd *, struct bfd_link_info *, struct bfd_link_order *, \
373 bfd_byte *, bfd_boolean, asymbol **)) \
375 #define _bfd_nolink_bfd_relax_section \
377 (bfd *, asection *, struct bfd_link_info *, bfd_boolean *)) \
379 #define _bfd_nolink_bfd_gc_sections \
380 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) \
382 #define _bfd_nolink_bfd_merge_sections \
383 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) \
385 #define _bfd_nolink_bfd_is_group_section \
386 ((bfd_boolean (*) (bfd *, const struct bfd_section *)) \
388 #define _bfd_nolink_bfd_discard_group \
389 ((bfd_boolean (*) (bfd *, struct bfd_section *)) \
391 #define _bfd_nolink_bfd_link_hash_table_create \
392 ((struct bfd_link_hash_table *(*) (bfd *)) bfd_nullvoidptr)
393 #define _bfd_nolink_bfd_link_hash_table_free \
394 ((void (*) (struct bfd_link_hash_table *)) bfd_void)
395 #define _bfd_nolink_bfd_link_add_symbols \
396 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) bfd_false)
397 #define _bfd_nolink_bfd_link_just_syms \
398 ((void (*) (asection *, struct bfd_link_info *)) bfd_void)
399 #define _bfd_nolink_bfd_final_link \
400 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) bfd_false)
401 #define _bfd_nolink_bfd_link_split_section \
402 ((bfd_boolean (*) (bfd *, struct bfd_section *)) bfd_false)
403 #define _bfd_nolink_section_already_linked \
404 ((void (*) (bfd *, struct bfd_section *)) bfd_void)
405 extern bfd_boolean _bfd_generic_match_sections_by_type
406 (bfd *, const asection *, bfd *, const asection *);
408 /* Routines to use for BFD_JUMP_TABLE_DYNAMIC for targets which do not
409 have dynamic symbols or relocs. Use BFD_JUMP_TABLE_DYNAMIC
412 #define _bfd_nodynamic_get_dynamic_symtab_upper_bound _bfd_n1
413 #define _bfd_nodynamic_canonicalize_dynamic_symtab \
414 ((long (*) (bfd *, asymbol **)) _bfd_n1)
415 #define _bfd_nodynamic_get_synthetic_symtab \
416 ((long (*) (bfd *, long, asymbol **, long, asymbol **, asymbol **)) _bfd_n1)
417 #define _bfd_nodynamic_get_dynamic_reloc_upper_bound _bfd_n1
418 #define _bfd_nodynamic_canonicalize_dynamic_reloc \
419 ((long (*) (bfd *, arelent **, asymbol **)) _bfd_n1)
421 /* Generic routine to determine of the given symbol is a local
423 extern bfd_boolean bfd_generic_is_local_label_name
424 (bfd *, const char *);
426 /* Generic minisymbol routines. */
427 extern long _bfd_generic_read_minisymbols
428 (bfd *, bfd_boolean, void **, unsigned int *);
429 extern asymbol *_bfd_generic_minisymbol_to_symbol
430 (bfd *, bfd_boolean, const void *, asymbol *);
432 /* Find the nearest line using .stab/.stabstr sections. */
433 extern bfd_boolean _bfd_stab_section_find_nearest_line
434 (bfd *, asymbol **, asection *, bfd_vma, bfd_boolean *,
435 const char **, const char **, unsigned int *, void **);
437 /* Find the nearest line using DWARF 1 debugging information. */
438 extern bfd_boolean _bfd_dwarf1_find_nearest_line
439 (bfd *, asection *, asymbol **, bfd_vma, const char **,
440 const char **, unsigned int *);
442 /* Find the nearest line using DWARF 2 debugging information. */
443 extern bfd_boolean _bfd_dwarf2_find_nearest_line
444 (bfd *, asection *, asymbol **, bfd_vma, const char **, const char **,
445 unsigned int *, unsigned int, void **);
447 /* Find the line using DWARF 2 debugging information. */
448 extern bfd_boolean _bfd_dwarf2_find_line
449 (bfd *, asymbol **, asymbol *, const char **,
450 unsigned int *, unsigned int, void **);
452 bfd_boolean _bfd_generic_find_line
453 (bfd *, asymbol **, asymbol *, const char **, unsigned int *);
455 /* Find inliner info after calling bfd_find_nearest_line. */
456 extern bfd_boolean _bfd_dwarf2_find_inliner_info
457 (bfd *, const char **, const char **, unsigned int *, void **);
459 /* Create a new section entry. */
460 extern struct bfd_hash_entry *bfd_section_hash_newfunc
461 (struct bfd_hash_entry *, struct bfd_hash_table *, const char *);
463 /* A routine to create entries for a bfd_link_hash_table. */
464 extern struct bfd_hash_entry *_bfd_link_hash_newfunc
465 (struct bfd_hash_entry *entry, struct bfd_hash_table *table,
468 /* Initialize a bfd_link_hash_table. */
469 extern bfd_boolean _bfd_link_hash_table_init
470 (struct bfd_link_hash_table *, bfd *,
471 struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
472 struct bfd_hash_table *,
475 /* Generic link hash table creation routine. */
476 extern struct bfd_link_hash_table *_bfd_generic_link_hash_table_create
479 /* Generic link hash table destruction routine. */
480 extern void _bfd_generic_link_hash_table_free
481 (struct bfd_link_hash_table *);
483 /* Generic add symbol routine. */
484 extern bfd_boolean _bfd_generic_link_add_symbols
485 (bfd *, struct bfd_link_info *);
487 /* Generic add symbol routine. This version is used by targets for
488 which the linker must collect constructors and destructors by name,
489 as the collect2 program does. */
490 extern bfd_boolean _bfd_generic_link_add_symbols_collect
491 (bfd *, struct bfd_link_info *);
493 /* Generic archive add symbol routine. */
494 extern bfd_boolean _bfd_generic_link_add_archive_symbols
495 (bfd *, struct bfd_link_info *,
496 bfd_boolean (*) (bfd *, struct bfd_link_info *, bfd_boolean *));
498 /* Forward declaration to avoid prototype errors. */
499 typedef struct bfd_link_hash_entry _bfd_link_hash_entry;
501 /* Generic routine to add a single symbol. */
502 extern bfd_boolean _bfd_generic_link_add_one_symbol
503 (struct bfd_link_info *, bfd *, const char *name, flagword,
504 asection *, bfd_vma, const char *, bfd_boolean copy,
505 bfd_boolean constructor, struct bfd_link_hash_entry **);
507 /* Generic routine to mark section as supplying symbols only. */
508 extern void _bfd_generic_link_just_syms
509 (asection *, struct bfd_link_info *);
511 /* Generic link routine. */
512 extern bfd_boolean _bfd_generic_final_link
513 (bfd *, struct bfd_link_info *);
515 extern bfd_boolean _bfd_generic_link_split_section
516 (bfd *, struct bfd_section *);
518 extern void _bfd_generic_section_already_linked
519 (bfd *, struct bfd_section *);
521 /* Generic reloc_link_order processing routine. */
522 extern bfd_boolean _bfd_generic_reloc_link_order
523 (bfd *, struct bfd_link_info *, asection *, struct bfd_link_order *);
525 /* Default link order processing routine. */
526 extern bfd_boolean _bfd_default_link_order
527 (bfd *, struct bfd_link_info *, asection *, struct bfd_link_order *);
529 /* Count the number of reloc entries in a link order list. */
530 extern unsigned int _bfd_count_link_order_relocs
531 (struct bfd_link_order *);
533 /* Final link relocation routine. */
534 extern bfd_reloc_status_type _bfd_final_link_relocate
535 (reloc_howto_type *, bfd *, asection *, bfd_byte *,
536 bfd_vma, bfd_vma, bfd_vma);
538 /* Relocate a particular location by a howto and a value. */
539 extern bfd_reloc_status_type _bfd_relocate_contents
540 (reloc_howto_type *, bfd *, bfd_vma, bfd_byte *);
542 /* Link stabs in sections in the first pass. */
544 extern bfd_boolean _bfd_link_section_stabs
545 (bfd *, struct stab_info *, asection *, asection *, void **,
548 /* Eliminate stabs for discarded functions and symbols. */
549 extern bfd_boolean _bfd_discard_section_stabs
550 (bfd *, asection *, void *, bfd_boolean (*) (bfd_vma, void *), void *);
552 /* Write out the .stab section when linking stabs in sections. */
554 extern bfd_boolean _bfd_write_section_stabs
555 (bfd *, struct stab_info *, asection *, void **, bfd_byte *);
557 /* Write out the .stabstr string table when linking stabs in sections. */
559 extern bfd_boolean _bfd_write_stab_strings
560 (bfd *, struct stab_info *);
562 /* Find an offset within a .stab section when linking stabs in
565 extern bfd_vma _bfd_stab_section_offset
566 (asection *, void *, bfd_vma);
568 /* Register a SEC_MERGE section as a candidate for merging. */
570 extern bfd_boolean _bfd_add_merge_section
571 (bfd *, void **, asection *, void **);
573 /* Attempt to merge SEC_MERGE sections. */
575 extern bfd_boolean _bfd_merge_sections
576 (bfd *, struct bfd_link_info *, void *, void (*) (bfd *, asection *));
578 /* Write out a merged section. */
580 extern bfd_boolean _bfd_write_merged_section
581 (bfd *, asection *, void *);
583 /* Find an offset within a modified SEC_MERGE section. */
585 extern bfd_vma _bfd_merged_section_offset
586 (bfd *, asection **, void *, bfd_vma);
588 /* Create a string table. */
589 extern struct bfd_strtab_hash *_bfd_stringtab_init
592 /* Create an XCOFF .debug section style string table. */
593 extern struct bfd_strtab_hash *_bfd_xcoff_stringtab_init
596 /* Free a string table. */
597 extern void _bfd_stringtab_free
598 (struct bfd_strtab_hash *);
600 /* Get the size of a string table. */
601 extern bfd_size_type _bfd_stringtab_size
602 (struct bfd_strtab_hash *);
604 /* Add a string to a string table. */
605 extern bfd_size_type _bfd_stringtab_add
606 (struct bfd_strtab_hash *, const char *, bfd_boolean hash, bfd_boolean copy);
608 /* Write out a string table. */
609 extern bfd_boolean _bfd_stringtab_emit
610 (bfd *, struct bfd_strtab_hash *);
612 /* Check that endianness of input and output file match. */
613 extern bfd_boolean _bfd_generic_verify_endian_match
616 /* Macros to tell if bfds are read or write enabled.
618 Note that bfds open for read may be scribbled into if the fd passed
619 to bfd_fdopenr is actually open both for read and write
620 simultaneously. However an output bfd will never be open for
621 read. Therefore sometimes you want to check bfd_read_p or
622 !bfd_read_p, and only sometimes bfd_write_p.
625 #define bfd_read_p(abfd) \
626 ((abfd)->direction == read_direction || (abfd)->direction == both_direction)
627 #define bfd_write_p(abfd) \
628 ((abfd)->direction == write_direction || (abfd)->direction == both_direction)
633 #define BFD_ASSERT(x) \
634 do { if (!(x)) bfd_assert(__FILE__,__LINE__); } while (0)
637 do { bfd_assert(__FILE__,__LINE__); } while (0)
639 extern void _bfd_abort
640 (const char *, int, const char *) ATTRIBUTE_NORETURN;
642 /* if gcc >= 2.6, we can give a function name, too */
643 #if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 6)
644 #define __PRETTY_FUNCTION__ ((char *) NULL)
648 #define abort() _bfd_abort (__FILE__, __LINE__, __PRETTY_FUNCTION__)
650 /* Manipulate a system FILE but using BFD's "file_ptr", rather than
651 the system "off_t" or "off64_t", as the offset. */
652 extern file_ptr real_ftell (FILE *file);
653 extern int real_fseek (FILE *file, file_ptr offset, int whence);
654 extern FILE *real_fopen (const char *filename, const char *modes);
656 /* List of supported target vectors, and the default vector (if
657 bfd_default_vector[0] is NULL, there is no default). */
658 extern const bfd_target * const *bfd_target_vector;
659 extern const bfd_target *bfd_default_vector[];
661 /* List of associated target vectors. */
662 extern const bfd_target * const *bfd_associated_vector;
664 /* Functions shared by the ECOFF and MIPS ELF backends, which have no
665 other common header files. */
667 #if defined(__STDC__) || defined(ALMOST_STDC)
668 struct ecoff_find_line;
671 extern bfd_boolean _bfd_ecoff_locate_line
672 (bfd *, asection *, bfd_vma, struct ecoff_debug_info * const,
673 const struct ecoff_debug_swap * const, struct ecoff_find_line *,
674 const char **, const char **, unsigned int *);
675 extern bfd_boolean _bfd_ecoff_get_accumulated_pdr
676 (void *, bfd_byte *);
677 extern bfd_boolean _bfd_ecoff_get_accumulated_sym
678 (void *, bfd_byte *);
679 extern bfd_boolean _bfd_ecoff_get_accumulated_ss
680 (void *, bfd_byte *);
682 extern bfd_vma _bfd_get_gp_value
684 extern void _bfd_set_gp_value
687 /* Function shared by the COFF and ELF SH backends, which have no
688 other common header files. */
690 #ifndef _bfd_sh_align_load_span
691 extern bfd_boolean _bfd_sh_align_load_span
692 (bfd *, asection *, bfd_byte *,
693 bfd_boolean (*) (bfd *, asection *, void *, bfd_byte *, bfd_vma),
694 void *, bfd_vma **, bfd_vma *, bfd_vma, bfd_vma, bfd_boolean *);
697 /* This is the shape of the elements inside the already_linked hash
698 table. It maps a name onto a list of already_linked elements with
701 struct bfd_section_already_linked_hash_entry
703 struct bfd_hash_entry root;
704 struct bfd_section_already_linked *entry;
707 struct bfd_section_already_linked
709 struct bfd_section_already_linked *next;
713 extern struct bfd_section_already_linked_hash_entry *
714 bfd_section_already_linked_table_lookup (const char *);
715 extern void bfd_section_already_linked_table_insert
716 (struct bfd_section_already_linked_hash_entry *, asection *);
717 extern void bfd_section_already_linked_table_traverse
718 (bfd_boolean (*) (struct bfd_section_already_linked_hash_entry *,
721 extern bfd_vma read_unsigned_leb128 (bfd *, bfd_byte *, unsigned int *);
722 extern bfd_signed_vma read_signed_leb128 (bfd *, bfd_byte *, unsigned int *);