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 /* Routines to use for BFD_JUMP_TABLE_CORE when there is no core file
238 support. Use BFD_JUMP_TABLE_CORE (_bfd_nocore). */
240 extern char *_bfd_nocore_core_file_failing_command
242 extern int _bfd_nocore_core_file_failing_signal
244 extern bfd_boolean _bfd_nocore_core_file_matches_executable_p
247 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE when there is no archive
248 file support. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive). */
250 #define _bfd_noarchive_slurp_armap bfd_false
251 #define _bfd_noarchive_slurp_extended_name_table bfd_false
252 #define _bfd_noarchive_construct_extended_name_table \
253 ((bfd_boolean (*) (bfd *, char **, bfd_size_type *, const char **)) \
255 #define _bfd_noarchive_truncate_arname \
256 ((void (*) (bfd *, const char *, char *)) bfd_void)
257 #define _bfd_noarchive_write_armap \
258 ((bfd_boolean (*) (bfd *, unsigned int, struct orl *, unsigned int, int)) \
260 #define _bfd_noarchive_read_ar_hdr bfd_nullvoidptr
261 #define _bfd_noarchive_openr_next_archived_file \
262 ((bfd *(*) (bfd *, bfd *)) bfd_nullvoidptr)
263 #define _bfd_noarchive_get_elt_at_index \
264 ((bfd *(*) (bfd *, symindex)) bfd_nullvoidptr)
265 #define _bfd_noarchive_generic_stat_arch_elt bfd_generic_stat_arch_elt
266 #define _bfd_noarchive_update_armap_timestamp bfd_false
268 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get BSD style
269 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_bsd). */
271 #define _bfd_archive_bsd_slurp_armap bfd_slurp_bsd_armap
272 #define _bfd_archive_bsd_slurp_extended_name_table \
273 _bfd_slurp_extended_name_table
274 extern bfd_boolean _bfd_archive_bsd_construct_extended_name_table
275 (bfd *, char **, bfd_size_type *, const char **);
276 #define _bfd_archive_bsd_truncate_arname bfd_bsd_truncate_arname
277 #define _bfd_archive_bsd_write_armap bsd_write_armap
278 #define _bfd_archive_bsd_read_ar_hdr _bfd_generic_read_ar_hdr
279 #define _bfd_archive_bsd_openr_next_archived_file \
280 bfd_generic_openr_next_archived_file
281 #define _bfd_archive_bsd_get_elt_at_index _bfd_generic_get_elt_at_index
282 #define _bfd_archive_bsd_generic_stat_arch_elt \
283 bfd_generic_stat_arch_elt
284 extern bfd_boolean _bfd_archive_bsd_update_armap_timestamp
287 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get COFF style
288 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff). */
290 #define _bfd_archive_coff_slurp_armap bfd_slurp_coff_armap
291 #define _bfd_archive_coff_slurp_extended_name_table \
292 _bfd_slurp_extended_name_table
293 extern bfd_boolean _bfd_archive_coff_construct_extended_name_table
294 (bfd *, char **, bfd_size_type *, const char **);
295 #define _bfd_archive_coff_truncate_arname bfd_dont_truncate_arname
296 #define _bfd_archive_coff_write_armap coff_write_armap
297 #define _bfd_archive_coff_read_ar_hdr _bfd_generic_read_ar_hdr
298 #define _bfd_archive_coff_openr_next_archived_file \
299 bfd_generic_openr_next_archived_file
300 #define _bfd_archive_coff_get_elt_at_index _bfd_generic_get_elt_at_index
301 #define _bfd_archive_coff_generic_stat_arch_elt \
302 bfd_generic_stat_arch_elt
303 #define _bfd_archive_coff_update_armap_timestamp bfd_true
305 /* Routines to use for BFD_JUMP_TABLE_SYMBOLS where there is no symbol
306 support. Use BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols). */
308 #define _bfd_nosymbols_get_symtab_upper_bound _bfd_n1
309 #define _bfd_nosymbols_canonicalize_symtab \
310 ((long (*) (bfd *, asymbol **)) _bfd_n1)
311 #define _bfd_nosymbols_make_empty_symbol _bfd_generic_make_empty_symbol
312 #define _bfd_nosymbols_print_symbol \
313 ((void (*) (bfd *, void *, asymbol *, bfd_print_symbol_type)) bfd_void)
314 #define _bfd_nosymbols_get_symbol_info \
315 ((void (*) (bfd *, asymbol *, symbol_info *)) bfd_void)
316 #define _bfd_nosymbols_bfd_is_local_label_name \
317 ((bfd_boolean (*) (bfd *, const char *)) bfd_false)
318 #define _bfd_nosymbols_bfd_is_target_special_symbol \
319 ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
320 #define _bfd_nosymbols_get_lineno \
321 ((alent *(*) (bfd *, asymbol *)) bfd_nullvoidptr)
322 #define _bfd_nosymbols_find_nearest_line \
323 ((bfd_boolean (*) (bfd *, asection *, asymbol **, bfd_vma, const char **, \
324 const char **, unsigned int *)) \
326 #define _bfd_nosymbols_find_inliner_info \
327 ((bfd_boolean (*) (bfd *, const char **, const char **, unsigned int *)) \
329 #define _bfd_nosymbols_bfd_make_debug_symbol \
330 ((asymbol *(*) (bfd *, void *, unsigned long)) bfd_nullvoidptr)
331 #define _bfd_nosymbols_read_minisymbols \
332 ((long (*) (bfd *, bfd_boolean, void **, unsigned int *)) _bfd_n1)
333 #define _bfd_nosymbols_minisymbol_to_symbol \
334 ((asymbol *(*) (bfd *, bfd_boolean, const void *, asymbol *)) \
337 /* Routines to use for BFD_JUMP_TABLE_RELOCS when there is no reloc
338 support. Use BFD_JUMP_TABLE_RELOCS (_bfd_norelocs). */
340 #define _bfd_norelocs_get_reloc_upper_bound \
341 ((long (*) (bfd *, asection *)) _bfd_n1)
342 #define _bfd_norelocs_canonicalize_reloc \
343 ((long (*) (bfd *, asection *, arelent **, asymbol **)) _bfd_n1)
344 #define _bfd_norelocs_bfd_reloc_type_lookup \
345 ((reloc_howto_type *(*) (bfd *, bfd_reloc_code_real_type)) bfd_nullvoidptr)
347 /* Routines to use for BFD_JUMP_TABLE_WRITE for targets which may not
348 be written. Use BFD_JUMP_TABLE_WRITE (_bfd_nowrite). */
350 #define _bfd_nowrite_set_arch_mach \
351 ((bfd_boolean (*) (bfd *, enum bfd_architecture, unsigned long)) \
353 #define _bfd_nowrite_set_section_contents \
354 ((bfd_boolean (*) (bfd *, asection *, const void *, file_ptr, bfd_size_type)) \
357 /* Generic routines to use for BFD_JUMP_TABLE_WRITE. Use
358 BFD_JUMP_TABLE_WRITE (_bfd_generic). */
360 #define _bfd_generic_set_arch_mach bfd_default_set_arch_mach
361 extern bfd_boolean _bfd_generic_set_section_contents
362 (bfd *, asection *, const void *, file_ptr, bfd_size_type);
364 /* Routines to use for BFD_JUMP_TABLE_LINK for targets which do not
365 support linking. Use BFD_JUMP_TABLE_LINK (_bfd_nolink). */
367 #define _bfd_nolink_sizeof_headers ((int (*) (bfd *, bfd_boolean)) bfd_0)
368 #define _bfd_nolink_bfd_get_relocated_section_contents \
369 ((bfd_byte *(*) (bfd *, struct bfd_link_info *, struct bfd_link_order *, \
370 bfd_byte *, bfd_boolean, asymbol **)) \
372 #define _bfd_nolink_bfd_relax_section \
374 (bfd *, asection *, struct bfd_link_info *, bfd_boolean *)) \
376 #define _bfd_nolink_bfd_gc_sections \
377 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) \
379 #define _bfd_nolink_bfd_merge_sections \
380 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) \
382 #define _bfd_nolink_bfd_is_group_section \
383 ((bfd_boolean (*) (bfd *, const struct bfd_section *)) \
385 #define _bfd_nolink_bfd_discard_group \
386 ((bfd_boolean (*) (bfd *, struct bfd_section *)) \
388 #define _bfd_nolink_bfd_link_hash_table_create \
389 ((struct bfd_link_hash_table *(*) (bfd *)) bfd_nullvoidptr)
390 #define _bfd_nolink_bfd_link_hash_table_free \
391 ((void (*) (struct bfd_link_hash_table *)) bfd_void)
392 #define _bfd_nolink_bfd_link_add_symbols \
393 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) bfd_false)
394 #define _bfd_nolink_bfd_link_just_syms \
395 ((void (*) (asection *, struct bfd_link_info *)) bfd_void)
396 #define _bfd_nolink_bfd_final_link \
397 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) bfd_false)
398 #define _bfd_nolink_bfd_link_split_section \
399 ((bfd_boolean (*) (bfd *, struct bfd_section *)) bfd_false)
400 #define _bfd_nolink_section_already_linked \
401 ((void (*) (bfd *, struct bfd_section *)) bfd_void)
403 /* Routines to use for BFD_JUMP_TABLE_DYNAMIC for targets which do not
404 have dynamic symbols or relocs. Use BFD_JUMP_TABLE_DYNAMIC
407 #define _bfd_nodynamic_get_dynamic_symtab_upper_bound _bfd_n1
408 #define _bfd_nodynamic_canonicalize_dynamic_symtab \
409 ((long (*) (bfd *, asymbol **)) _bfd_n1)
410 #define _bfd_nodynamic_get_synthetic_symtab \
411 ((long (*) (bfd *, long, asymbol **, long, asymbol **, asymbol **)) _bfd_n1)
412 #define _bfd_nodynamic_get_dynamic_reloc_upper_bound _bfd_n1
413 #define _bfd_nodynamic_canonicalize_dynamic_reloc \
414 ((long (*) (bfd *, arelent **, asymbol **)) _bfd_n1)
416 /* Generic routine to determine of the given symbol is a local
418 extern bfd_boolean bfd_generic_is_local_label_name
419 (bfd *, const char *);
421 /* Generic minisymbol routines. */
422 extern long _bfd_generic_read_minisymbols
423 (bfd *, bfd_boolean, void **, unsigned int *);
424 extern asymbol *_bfd_generic_minisymbol_to_symbol
425 (bfd *, bfd_boolean, const void *, asymbol *);
427 /* Find the nearest line using .stab/.stabstr sections. */
428 extern bfd_boolean _bfd_stab_section_find_nearest_line
429 (bfd *, asymbol **, asection *, bfd_vma, bfd_boolean *,
430 const char **, const char **, unsigned int *, void **);
432 /* Find the nearest line using DWARF 1 debugging information. */
433 extern bfd_boolean _bfd_dwarf1_find_nearest_line
434 (bfd *, asection *, asymbol **, bfd_vma, const char **,
435 const char **, unsigned int *);
437 /* Find the nearest line using DWARF 2 debugging information. */
438 extern bfd_boolean _bfd_dwarf2_find_nearest_line
439 (bfd *, asection *, asymbol **, bfd_vma, const char **, const char **,
440 unsigned int *, unsigned int, void **);
442 /* Find the line using DWARF 2 debugging information. */
443 extern bfd_boolean _bfd_dwarf2_find_line
444 (bfd *, asymbol **, asymbol *, const char **,
445 unsigned int *, unsigned int, void **);
447 bfd_boolean _bfd_generic_find_line
448 (bfd *, asymbol **, asymbol *, const char **, unsigned int *);
450 /* Find inliner info after calling bfd_find_nearest_line. */
451 extern bfd_boolean _bfd_dwarf2_find_inliner_info
452 (bfd *, const char **, const char **, unsigned int *, void **);
454 /* Create a new section entry. */
455 extern struct bfd_hash_entry *bfd_section_hash_newfunc
456 (struct bfd_hash_entry *, struct bfd_hash_table *, const char *);
458 /* A routine to create entries for a bfd_link_hash_table. */
459 extern struct bfd_hash_entry *_bfd_link_hash_newfunc
460 (struct bfd_hash_entry *entry, struct bfd_hash_table *table,
463 /* Initialize a bfd_link_hash_table. */
464 extern bfd_boolean _bfd_link_hash_table_init
465 (struct bfd_link_hash_table *, bfd *,
466 struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
467 struct bfd_hash_table *,
470 /* Generic link hash table creation routine. */
471 extern struct bfd_link_hash_table *_bfd_generic_link_hash_table_create
474 /* Generic link hash table destruction routine. */
475 extern void _bfd_generic_link_hash_table_free
476 (struct bfd_link_hash_table *);
478 /* Generic add symbol routine. */
479 extern bfd_boolean _bfd_generic_link_add_symbols
480 (bfd *, struct bfd_link_info *);
482 /* Generic add symbol routine. This version is used by targets for
483 which the linker must collect constructors and destructors by name,
484 as the collect2 program does. */
485 extern bfd_boolean _bfd_generic_link_add_symbols_collect
486 (bfd *, struct bfd_link_info *);
488 /* Generic archive add symbol routine. */
489 extern bfd_boolean _bfd_generic_link_add_archive_symbols
490 (bfd *, struct bfd_link_info *,
491 bfd_boolean (*) (bfd *, struct bfd_link_info *, bfd_boolean *));
493 /* Forward declaration to avoid prototype errors. */
494 typedef struct bfd_link_hash_entry _bfd_link_hash_entry;
496 /* Generic routine to add a single symbol. */
497 extern bfd_boolean _bfd_generic_link_add_one_symbol
498 (struct bfd_link_info *, bfd *, const char *name, flagword,
499 asection *, bfd_vma, const char *, bfd_boolean copy,
500 bfd_boolean constructor, struct bfd_link_hash_entry **);
502 /* Generic routine to mark section as supplying symbols only. */
503 extern void _bfd_generic_link_just_syms
504 (asection *, struct bfd_link_info *);
506 /* Generic link routine. */
507 extern bfd_boolean _bfd_generic_final_link
508 (bfd *, struct bfd_link_info *);
510 extern bfd_boolean _bfd_generic_link_split_section
511 (bfd *, struct bfd_section *);
513 extern void _bfd_generic_section_already_linked
514 (bfd *, struct bfd_section *);
516 /* Generic reloc_link_order processing routine. */
517 extern bfd_boolean _bfd_generic_reloc_link_order
518 (bfd *, struct bfd_link_info *, asection *, struct bfd_link_order *);
520 /* Default link order processing routine. */
521 extern bfd_boolean _bfd_default_link_order
522 (bfd *, struct bfd_link_info *, asection *, struct bfd_link_order *);
524 /* Count the number of reloc entries in a link order list. */
525 extern unsigned int _bfd_count_link_order_relocs
526 (struct bfd_link_order *);
528 /* Final link relocation routine. */
529 extern bfd_reloc_status_type _bfd_final_link_relocate
530 (reloc_howto_type *, bfd *, asection *, bfd_byte *,
531 bfd_vma, bfd_vma, bfd_vma);
533 /* Relocate a particular location by a howto and a value. */
534 extern bfd_reloc_status_type _bfd_relocate_contents
535 (reloc_howto_type *, bfd *, bfd_vma, bfd_byte *);
537 /* Link stabs in sections in the first pass. */
539 extern bfd_boolean _bfd_link_section_stabs
540 (bfd *, struct stab_info *, asection *, asection *, void **,
543 /* Eliminate stabs for discarded functions and symbols. */
544 extern bfd_boolean _bfd_discard_section_stabs
545 (bfd *, asection *, void *, bfd_boolean (*) (bfd_vma, void *), void *);
547 /* Write out the .stab section when linking stabs in sections. */
549 extern bfd_boolean _bfd_write_section_stabs
550 (bfd *, struct stab_info *, asection *, void **, bfd_byte *);
552 /* Write out the .stabstr string table when linking stabs in sections. */
554 extern bfd_boolean _bfd_write_stab_strings
555 (bfd *, struct stab_info *);
557 /* Find an offset within a .stab section when linking stabs in
560 extern bfd_vma _bfd_stab_section_offset
561 (asection *, void *, bfd_vma);
563 /* Register a SEC_MERGE section as a candidate for merging. */
565 extern bfd_boolean _bfd_add_merge_section
566 (bfd *, void **, asection *, void **);
568 /* Attempt to merge SEC_MERGE sections. */
570 extern bfd_boolean _bfd_merge_sections
571 (bfd *, struct bfd_link_info *, void *, void (*) (bfd *, asection *));
573 /* Write out a merged section. */
575 extern bfd_boolean _bfd_write_merged_section
576 (bfd *, asection *, void *);
578 /* Find an offset within a modified SEC_MERGE section. */
580 extern bfd_vma _bfd_merged_section_offset
581 (bfd *, asection **, void *, bfd_vma);
583 /* Create a string table. */
584 extern struct bfd_strtab_hash *_bfd_stringtab_init
587 /* Create an XCOFF .debug section style string table. */
588 extern struct bfd_strtab_hash *_bfd_xcoff_stringtab_init
591 /* Free a string table. */
592 extern void _bfd_stringtab_free
593 (struct bfd_strtab_hash *);
595 /* Get the size of a string table. */
596 extern bfd_size_type _bfd_stringtab_size
597 (struct bfd_strtab_hash *);
599 /* Add a string to a string table. */
600 extern bfd_size_type _bfd_stringtab_add
601 (struct bfd_strtab_hash *, const char *, bfd_boolean hash, bfd_boolean copy);
603 /* Write out a string table. */
604 extern bfd_boolean _bfd_stringtab_emit
605 (bfd *, struct bfd_strtab_hash *);
607 /* Check that endianness of input and output file match. */
608 extern bfd_boolean _bfd_generic_verify_endian_match
611 /* Macros to tell if bfds are read or write enabled.
613 Note that bfds open for read may be scribbled into if the fd passed
614 to bfd_fdopenr is actually open both for read and write
615 simultaneously. However an output bfd will never be open for
616 read. Therefore sometimes you want to check bfd_read_p or
617 !bfd_read_p, and only sometimes bfd_write_p.
620 #define bfd_read_p(abfd) \
621 ((abfd)->direction == read_direction || (abfd)->direction == both_direction)
622 #define bfd_write_p(abfd) \
623 ((abfd)->direction == write_direction || (abfd)->direction == both_direction)
628 #define BFD_ASSERT(x) \
629 do { if (!(x)) bfd_assert(__FILE__,__LINE__); } while (0)
632 do { bfd_assert(__FILE__,__LINE__); } while (0)
634 extern void _bfd_abort
635 (const char *, int, const char *) ATTRIBUTE_NORETURN;
637 /* if gcc >= 2.6, we can give a function name, too */
638 #if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 6)
639 #define __PRETTY_FUNCTION__ ((char *) NULL)
643 #define abort() _bfd_abort (__FILE__, __LINE__, __PRETTY_FUNCTION__)
645 /* Manipulate a system FILE but using BFD's "file_ptr", rather than
646 the system "off_t" or "off64_t", as the offset. */
647 extern file_ptr real_ftell (FILE *file);
648 extern int real_fseek (FILE *file, file_ptr offset, int whence);
650 FILE * bfd_cache_lookup_worker
653 extern bfd *bfd_last_cache;
655 /* List of supported target vectors, and the default vector (if
656 bfd_default_vector[0] is NULL, there is no default). */
657 extern const bfd_target * const *bfd_target_vector;
658 extern const bfd_target *bfd_default_vector[];
660 /* List of associated target vectors. */
661 extern const bfd_target * const *bfd_associated_vector;
663 /* Functions shared by the ECOFF and MIPS ELF backends, which have no
664 other common header files. */
666 #if defined(__STDC__) || defined(ALMOST_STDC)
667 struct ecoff_find_line;
670 extern bfd_boolean _bfd_ecoff_locate_line
671 (bfd *, asection *, bfd_vma, struct ecoff_debug_info * const,
672 const struct ecoff_debug_swap * const, struct ecoff_find_line *,
673 const char **, const char **, unsigned int *);
674 extern bfd_boolean _bfd_ecoff_get_accumulated_pdr
675 (void *, bfd_byte *);
676 extern bfd_boolean _bfd_ecoff_get_accumulated_sym
677 (void *, bfd_byte *);
678 extern bfd_boolean _bfd_ecoff_get_accumulated_ss
679 (void *, bfd_byte *);
681 extern bfd_vma _bfd_get_gp_value
683 extern void _bfd_set_gp_value
686 /* Function shared by the COFF and ELF SH backends, which have no
687 other common header files. */
689 #ifndef _bfd_sh_align_load_span
690 extern bfd_boolean _bfd_sh_align_load_span
691 (bfd *, asection *, bfd_byte *,
692 bfd_boolean (*) (bfd *, asection *, void *, bfd_byte *, bfd_vma),
693 void *, bfd_vma **, bfd_vma *, bfd_vma, bfd_vma, bfd_boolean *);
696 /* This is the shape of the elements inside the already_linked hash
697 table. It maps a name onto a list of already_linked elements with
700 struct bfd_section_already_linked_hash_entry
702 struct bfd_hash_entry root;
703 struct bfd_section_already_linked *entry;
706 struct bfd_section_already_linked
708 struct bfd_section_already_linked *next;
712 extern struct bfd_section_already_linked_hash_entry *
713 bfd_section_already_linked_table_lookup (const char *);
714 extern void bfd_section_already_linked_table_insert
715 (struct bfd_section_already_linked_hash_entry *, asection *);
716 extern void bfd_section_already_linked_table_traverse
717 (bfd_boolean (*) (struct bfd_section_already_linked_hash_entry *,
720 extern bfd_vma read_unsigned_leb128 (bfd *, bfd_byte *, unsigned int *);
721 extern bfd_signed_vma read_signed_leb128 (bfd *, bfd_byte *, unsigned int *);