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, 2006
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 struct section_hash_entry
58 struct bfd_hash_entry root;
62 /* tdata for an archive. For an input archive, cache
63 needs to be free()'d. For an output archive, symdefs do. */
66 file_ptr first_file_filepos;
67 /* Speed up searching the armap */
69 bfd *archive_head; /* Only interesting in output routines */
70 carsym *symdefs; /* the symdef entries */
71 symindex symdef_count; /* how many there are */
72 char *extended_names; /* clever intel extension */
73 bfd_size_type extended_names_size; /* Size of extended names */
74 /* when more compilers are standard C, this can be a time_t */
75 long armap_timestamp; /* Timestamp value written into armap.
76 This is used for BSD archives to check
77 that the timestamp is recent enough
78 for the BSD linker to not complain,
79 just before we finish writing an
81 file_ptr armap_datepos; /* Position within archive to seek to
82 rewrite the date field. */
83 void *tdata; /* Backend specific information. */
86 #define bfd_ardata(bfd) ((bfd)->tdata.aout_ar_data)
88 /* Goes in bfd's arelt_data slot */
90 char * arch_header; /* it's actually a string */
91 unsigned int parsed_size; /* octets of filesize not including ar_hdr */
92 char *filename; /* null-terminated */
95 #define arelt_size(bfd) (((struct areltdata *)((bfd)->arelt_data))->parsed_size)
97 extern void *bfd_malloc
99 extern void *bfd_realloc
100 (void *, bfd_size_type);
101 extern void *bfd_zmalloc
103 extern void *bfd_malloc2
104 (bfd_size_type, bfd_size_type);
105 extern void *bfd_realloc2
106 (void *, bfd_size_type, bfd_size_type);
107 extern void *bfd_zmalloc2
108 (bfd_size_type, bfd_size_type);
110 extern void _bfd_default_error_handler (const char *s, ...);
111 extern bfd_error_handler_type _bfd_error_handler;
113 /* These routines allocate and free things on the BFD's objalloc. */
115 extern void *bfd_alloc
116 (bfd *, bfd_size_type);
117 extern void *bfd_zalloc
118 (bfd *, bfd_size_type);
119 extern void *bfd_alloc2
120 (bfd *, bfd_size_type, bfd_size_type);
121 extern void *bfd_zalloc2
122 (bfd *, bfd_size_type, bfd_size_type);
123 extern void bfd_release
126 bfd * _bfd_create_empty_archive_element_shell
128 bfd * _bfd_look_for_bfd_in_cache
130 bfd_boolean _bfd_add_bfd_to_archive_cache
131 (bfd *, file_ptr, bfd *);
132 bfd_boolean _bfd_generic_mkarchive
134 const bfd_target *bfd_generic_archive_p
136 bfd_boolean bfd_slurp_armap
138 bfd_boolean bfd_slurp_bsd_armap_f2
140 #define bfd_slurp_bsd_armap bfd_slurp_armap
141 #define bfd_slurp_coff_armap bfd_slurp_armap
142 bfd_boolean _bfd_slurp_extended_name_table
144 extern bfd_boolean _bfd_construct_extended_name_table
145 (bfd *, bfd_boolean, char **, bfd_size_type *);
146 bfd_boolean _bfd_write_archive_contents
148 bfd_boolean _bfd_compute_and_write_armap
149 (bfd *, unsigned int elength);
150 bfd *_bfd_get_elt_at_filepos
151 (bfd *archive, file_ptr filepos);
152 extern bfd *_bfd_generic_get_elt_at_index
158 bfd_boolean _bfd_free_cached_info
161 bfd_boolean bfd_false
165 void *bfd_nullvoidptr
178 bfd *_bfd_new_bfd_contained_in
180 const bfd_target *_bfd_dummy_target
183 void bfd_dont_truncate_arname
184 (bfd *abfd, const char *filename, char *hdr);
185 void bfd_bsd_truncate_arname
186 (bfd *abfd, const char *filename, char *hdr);
187 void bfd_gnu_truncate_arname
188 (bfd *abfd, const char *filename, char *hdr);
190 bfd_boolean bsd_write_armap
191 (bfd *arch, unsigned int elength, struct orl *map, unsigned int orl_count,
194 bfd_boolean coff_write_armap
195 (bfd *arch, unsigned int elength, struct orl *map, unsigned int orl_count,
198 extern void *_bfd_generic_read_ar_hdr
200 extern void _bfd_ar_spacepad
201 (char *, size_t, const char *, long);
203 extern void *_bfd_generic_read_ar_hdr_mag
204 (bfd *, const char *);
206 bfd * bfd_generic_openr_next_archived_file
207 (bfd *archive, bfd *last_file);
209 int bfd_generic_stat_arch_elt
210 (bfd *, struct stat *);
212 #define _bfd_read_ar_hdr(abfd) \
213 BFD_SEND (abfd, _bfd_read_ar_hdr_fn, (abfd))
215 /* Generic routines to use for BFD_JUMP_TABLE_GENERIC. Use
216 BFD_JUMP_TABLE_GENERIC (_bfd_generic). */
218 #define _bfd_generic_close_and_cleanup bfd_true
219 #define _bfd_generic_bfd_free_cached_info bfd_true
220 #define _bfd_generic_new_section_hook \
221 ((bfd_boolean (*) (bfd *, asection *)) bfd_true)
222 extern bfd_boolean _bfd_generic_get_section_contents
223 (bfd *, asection *, void *, file_ptr, bfd_size_type);
224 extern bfd_boolean _bfd_generic_get_section_contents_in_window
225 (bfd *, asection *, bfd_window *, file_ptr, bfd_size_type);
227 /* Generic routines to use for BFD_JUMP_TABLE_COPY. Use
228 BFD_JUMP_TABLE_COPY (_bfd_generic). */
230 #define _bfd_generic_bfd_copy_private_bfd_data \
231 ((bfd_boolean (*) (bfd *, bfd *)) bfd_true)
232 #define _bfd_generic_bfd_merge_private_bfd_data \
233 ((bfd_boolean (*) (bfd *, bfd *)) bfd_true)
234 #define _bfd_generic_bfd_set_private_flags \
235 ((bfd_boolean (*) (bfd *, flagword)) bfd_true)
236 #define _bfd_generic_bfd_copy_private_section_data \
237 ((bfd_boolean (*) (bfd *, asection *, bfd *, asection *)) bfd_true)
238 #define _bfd_generic_bfd_copy_private_symbol_data \
239 ((bfd_boolean (*) (bfd *, asymbol *, bfd *, asymbol *)) bfd_true)
240 #define _bfd_generic_bfd_copy_private_header_data \
241 ((bfd_boolean (*) (bfd *, bfd *)) bfd_true)
242 #define _bfd_generic_bfd_print_private_bfd_data \
243 ((bfd_boolean (*) (bfd *, void *)) bfd_true)
245 extern bfd_boolean _bfd_generic_init_private_section_data
246 (bfd *, asection *, bfd *, asection *, struct bfd_link_info *);
248 /* Routines to use for BFD_JUMP_TABLE_CORE when there is no core file
249 support. Use BFD_JUMP_TABLE_CORE (_bfd_nocore). */
251 extern char *_bfd_nocore_core_file_failing_command
253 extern int _bfd_nocore_core_file_failing_signal
255 extern bfd_boolean _bfd_nocore_core_file_matches_executable_p
258 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE when there is no archive
259 file support. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive). */
261 #define _bfd_noarchive_slurp_armap bfd_false
262 #define _bfd_noarchive_slurp_extended_name_table bfd_false
263 #define _bfd_noarchive_construct_extended_name_table \
264 ((bfd_boolean (*) (bfd *, char **, bfd_size_type *, const char **)) \
266 #define _bfd_noarchive_truncate_arname \
267 ((void (*) (bfd *, const char *, char *)) bfd_void)
268 #define _bfd_noarchive_write_armap \
269 ((bfd_boolean (*) (bfd *, unsigned int, struct orl *, unsigned int, int)) \
271 #define _bfd_noarchive_read_ar_hdr bfd_nullvoidptr
272 #define _bfd_noarchive_openr_next_archived_file \
273 ((bfd *(*) (bfd *, bfd *)) bfd_nullvoidptr)
274 #define _bfd_noarchive_get_elt_at_index \
275 ((bfd *(*) (bfd *, symindex)) bfd_nullvoidptr)
276 #define _bfd_noarchive_generic_stat_arch_elt bfd_generic_stat_arch_elt
277 #define _bfd_noarchive_update_armap_timestamp bfd_false
279 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get BSD style
280 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_bsd). */
282 #define _bfd_archive_bsd_slurp_armap bfd_slurp_bsd_armap
283 #define _bfd_archive_bsd_slurp_extended_name_table \
284 _bfd_slurp_extended_name_table
285 extern bfd_boolean _bfd_archive_bsd_construct_extended_name_table
286 (bfd *, char **, bfd_size_type *, const char **);
287 #define _bfd_archive_bsd_truncate_arname bfd_bsd_truncate_arname
288 #define _bfd_archive_bsd_write_armap bsd_write_armap
289 #define _bfd_archive_bsd_read_ar_hdr _bfd_generic_read_ar_hdr
290 #define _bfd_archive_bsd_openr_next_archived_file \
291 bfd_generic_openr_next_archived_file
292 #define _bfd_archive_bsd_get_elt_at_index _bfd_generic_get_elt_at_index
293 #define _bfd_archive_bsd_generic_stat_arch_elt \
294 bfd_generic_stat_arch_elt
295 extern bfd_boolean _bfd_archive_bsd_update_armap_timestamp
298 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get COFF style
299 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff). */
301 #define _bfd_archive_coff_slurp_armap bfd_slurp_coff_armap
302 #define _bfd_archive_coff_slurp_extended_name_table \
303 _bfd_slurp_extended_name_table
304 extern bfd_boolean _bfd_archive_coff_construct_extended_name_table
305 (bfd *, char **, bfd_size_type *, const char **);
306 #define _bfd_archive_coff_truncate_arname bfd_dont_truncate_arname
307 #define _bfd_archive_coff_write_armap coff_write_armap
308 #define _bfd_archive_coff_read_ar_hdr _bfd_generic_read_ar_hdr
309 #define _bfd_archive_coff_openr_next_archived_file \
310 bfd_generic_openr_next_archived_file
311 #define _bfd_archive_coff_get_elt_at_index _bfd_generic_get_elt_at_index
312 #define _bfd_archive_coff_generic_stat_arch_elt \
313 bfd_generic_stat_arch_elt
314 #define _bfd_archive_coff_update_armap_timestamp bfd_true
316 /* Routines to use for BFD_JUMP_TABLE_SYMBOLS where there is no symbol
317 support. Use BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols). */
319 #define _bfd_nosymbols_get_symtab_upper_bound _bfd_n1
320 #define _bfd_nosymbols_canonicalize_symtab \
321 ((long (*) (bfd *, asymbol **)) _bfd_n1)
322 #define _bfd_nosymbols_make_empty_symbol _bfd_generic_make_empty_symbol
323 #define _bfd_nosymbols_print_symbol \
324 ((void (*) (bfd *, void *, asymbol *, bfd_print_symbol_type)) bfd_void)
325 #define _bfd_nosymbols_get_symbol_info \
326 ((void (*) (bfd *, asymbol *, symbol_info *)) bfd_void)
327 #define _bfd_nosymbols_bfd_is_local_label_name \
328 ((bfd_boolean (*) (bfd *, const char *)) bfd_false)
329 #define _bfd_nosymbols_bfd_is_target_special_symbol \
330 ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
331 #define _bfd_nosymbols_get_lineno \
332 ((alent *(*) (bfd *, asymbol *)) bfd_nullvoidptr)
333 #define _bfd_nosymbols_find_nearest_line \
334 ((bfd_boolean (*) (bfd *, asection *, asymbol **, bfd_vma, const char **, \
335 const char **, unsigned int *)) \
337 #define _bfd_nosymbols_find_inliner_info \
338 ((bfd_boolean (*) (bfd *, const char **, const char **, unsigned int *)) \
340 #define _bfd_nosymbols_bfd_make_debug_symbol \
341 ((asymbol *(*) (bfd *, void *, unsigned long)) bfd_nullvoidptr)
342 #define _bfd_nosymbols_read_minisymbols \
343 ((long (*) (bfd *, bfd_boolean, void **, unsigned int *)) _bfd_n1)
344 #define _bfd_nosymbols_minisymbol_to_symbol \
345 ((asymbol *(*) (bfd *, bfd_boolean, const void *, asymbol *)) \
348 /* Routines to use for BFD_JUMP_TABLE_RELOCS when there is no reloc
349 support. Use BFD_JUMP_TABLE_RELOCS (_bfd_norelocs). */
351 #define _bfd_norelocs_get_reloc_upper_bound \
352 ((long (*) (bfd *, asection *)) _bfd_n1)
353 #define _bfd_norelocs_canonicalize_reloc \
354 ((long (*) (bfd *, asection *, arelent **, asymbol **)) _bfd_n1)
355 #define _bfd_norelocs_bfd_reloc_type_lookup \
356 ((reloc_howto_type *(*) (bfd *, bfd_reloc_code_real_type)) bfd_nullvoidptr)
358 /* Routines to use for BFD_JUMP_TABLE_WRITE for targets which may not
359 be written. Use BFD_JUMP_TABLE_WRITE (_bfd_nowrite). */
361 #define _bfd_nowrite_set_arch_mach \
362 ((bfd_boolean (*) (bfd *, enum bfd_architecture, unsigned long)) \
364 #define _bfd_nowrite_set_section_contents \
365 ((bfd_boolean (*) (bfd *, asection *, const void *, file_ptr, bfd_size_type)) \
368 /* Generic routines to use for BFD_JUMP_TABLE_WRITE. Use
369 BFD_JUMP_TABLE_WRITE (_bfd_generic). */
371 #define _bfd_generic_set_arch_mach bfd_default_set_arch_mach
372 extern bfd_boolean _bfd_generic_set_section_contents
373 (bfd *, asection *, const void *, file_ptr, bfd_size_type);
375 /* Routines to use for BFD_JUMP_TABLE_LINK for targets which do not
376 support linking. Use BFD_JUMP_TABLE_LINK (_bfd_nolink). */
378 #define _bfd_nolink_sizeof_headers ((int (*) (bfd *, bfd_boolean)) bfd_0)
379 #define _bfd_nolink_bfd_get_relocated_section_contents \
380 ((bfd_byte *(*) (bfd *, struct bfd_link_info *, struct bfd_link_order *, \
381 bfd_byte *, bfd_boolean, asymbol **)) \
383 #define _bfd_nolink_bfd_relax_section \
385 (bfd *, asection *, struct bfd_link_info *, bfd_boolean *)) \
387 #define _bfd_nolink_bfd_gc_sections \
388 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) \
390 #define _bfd_nolink_bfd_merge_sections \
391 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) \
393 #define _bfd_nolink_bfd_is_group_section \
394 ((bfd_boolean (*) (bfd *, const struct bfd_section *)) \
396 #define _bfd_nolink_bfd_discard_group \
397 ((bfd_boolean (*) (bfd *, struct bfd_section *)) \
399 #define _bfd_nolink_bfd_link_hash_table_create \
400 ((struct bfd_link_hash_table *(*) (bfd *)) bfd_nullvoidptr)
401 #define _bfd_nolink_bfd_link_hash_table_free \
402 ((void (*) (struct bfd_link_hash_table *)) bfd_void)
403 #define _bfd_nolink_bfd_link_add_symbols \
404 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) bfd_false)
405 #define _bfd_nolink_bfd_link_just_syms \
406 ((void (*) (asection *, struct bfd_link_info *)) bfd_void)
407 #define _bfd_nolink_bfd_final_link \
408 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) bfd_false)
409 #define _bfd_nolink_bfd_link_split_section \
410 ((bfd_boolean (*) (bfd *, struct bfd_section *)) bfd_false)
411 #define _bfd_nolink_section_already_linked \
412 ((void (*) (bfd *, struct bfd_section *)) bfd_void)
414 /* Routines to use for BFD_JUMP_TABLE_DYNAMIC for targets which do not
415 have dynamic symbols or relocs. Use BFD_JUMP_TABLE_DYNAMIC
418 #define _bfd_nodynamic_get_dynamic_symtab_upper_bound _bfd_n1
419 #define _bfd_nodynamic_canonicalize_dynamic_symtab \
420 ((long (*) (bfd *, asymbol **)) _bfd_n1)
421 #define _bfd_nodynamic_get_synthetic_symtab \
422 ((long (*) (bfd *, long, asymbol **, long, asymbol **, asymbol **)) _bfd_n1)
423 #define _bfd_nodynamic_get_dynamic_reloc_upper_bound _bfd_n1
424 #define _bfd_nodynamic_canonicalize_dynamic_reloc \
425 ((long (*) (bfd *, arelent **, asymbol **)) _bfd_n1)
427 /* Generic routine to determine of the given symbol is a local
429 extern bfd_boolean bfd_generic_is_local_label_name
430 (bfd *, const char *);
432 /* Generic minisymbol routines. */
433 extern long _bfd_generic_read_minisymbols
434 (bfd *, bfd_boolean, void **, unsigned int *);
435 extern asymbol *_bfd_generic_minisymbol_to_symbol
436 (bfd *, bfd_boolean, const void *, asymbol *);
438 /* Find the nearest line using .stab/.stabstr sections. */
439 extern bfd_boolean _bfd_stab_section_find_nearest_line
440 (bfd *, asymbol **, asection *, bfd_vma, bfd_boolean *,
441 const char **, const char **, unsigned int *, void **);
443 /* Find the nearest line using DWARF 1 debugging information. */
444 extern bfd_boolean _bfd_dwarf1_find_nearest_line
445 (bfd *, asection *, asymbol **, bfd_vma, const char **,
446 const char **, unsigned int *);
448 /* Find the nearest line using DWARF 2 debugging information. */
449 extern bfd_boolean _bfd_dwarf2_find_nearest_line
450 (bfd *, asection *, asymbol **, bfd_vma, const char **, const char **,
451 unsigned int *, unsigned int, void **);
453 /* Find the line using DWARF 2 debugging information. */
454 extern bfd_boolean _bfd_dwarf2_find_line
455 (bfd *, asymbol **, asymbol *, const char **,
456 unsigned int *, unsigned int, void **);
458 bfd_boolean _bfd_generic_find_line
459 (bfd *, asymbol **, asymbol *, const char **, unsigned int *);
461 /* Find inliner info after calling bfd_find_nearest_line. */
462 extern bfd_boolean _bfd_dwarf2_find_inliner_info
463 (bfd *, const char **, const char **, unsigned int *, void **);
465 /* Create a new section entry. */
466 extern struct bfd_hash_entry *bfd_section_hash_newfunc
467 (struct bfd_hash_entry *, struct bfd_hash_table *, const char *);
469 /* A routine to create entries for a bfd_link_hash_table. */
470 extern struct bfd_hash_entry *_bfd_link_hash_newfunc
471 (struct bfd_hash_entry *entry, struct bfd_hash_table *table,
474 /* Initialize a bfd_link_hash_table. */
475 extern bfd_boolean _bfd_link_hash_table_init
476 (struct bfd_link_hash_table *, bfd *,
477 struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
478 struct bfd_hash_table *,
482 /* Generic link hash table creation routine. */
483 extern struct bfd_link_hash_table *_bfd_generic_link_hash_table_create
486 /* Generic link hash table destruction routine. */
487 extern void _bfd_generic_link_hash_table_free
488 (struct bfd_link_hash_table *);
490 /* Generic add symbol routine. */
491 extern bfd_boolean _bfd_generic_link_add_symbols
492 (bfd *, struct bfd_link_info *);
494 /* Generic add symbol routine. This version is used by targets for
495 which the linker must collect constructors and destructors by name,
496 as the collect2 program does. */
497 extern bfd_boolean _bfd_generic_link_add_symbols_collect
498 (bfd *, struct bfd_link_info *);
500 /* Generic archive add symbol routine. */
501 extern bfd_boolean _bfd_generic_link_add_archive_symbols
502 (bfd *, struct bfd_link_info *,
503 bfd_boolean (*) (bfd *, struct bfd_link_info *, bfd_boolean *));
505 /* Forward declaration to avoid prototype errors. */
506 typedef struct bfd_link_hash_entry _bfd_link_hash_entry;
508 /* Generic routine to add a single symbol. */
509 extern bfd_boolean _bfd_generic_link_add_one_symbol
510 (struct bfd_link_info *, bfd *, const char *name, flagword,
511 asection *, bfd_vma, const char *, bfd_boolean copy,
512 bfd_boolean constructor, struct bfd_link_hash_entry **);
514 /* Generic routine to mark section as supplying symbols only. */
515 extern void _bfd_generic_link_just_syms
516 (asection *, struct bfd_link_info *);
518 /* Generic link routine. */
519 extern bfd_boolean _bfd_generic_final_link
520 (bfd *, struct bfd_link_info *);
522 extern bfd_boolean _bfd_generic_link_split_section
523 (bfd *, struct bfd_section *);
525 extern void _bfd_generic_section_already_linked
526 (bfd *, struct bfd_section *);
528 /* Generic reloc_link_order processing routine. */
529 extern bfd_boolean _bfd_generic_reloc_link_order
530 (bfd *, struct bfd_link_info *, asection *, struct bfd_link_order *);
532 /* Default link order processing routine. */
533 extern bfd_boolean _bfd_default_link_order
534 (bfd *, struct bfd_link_info *, asection *, struct bfd_link_order *);
536 /* Count the number of reloc entries in a link order list. */
537 extern unsigned int _bfd_count_link_order_relocs
538 (struct bfd_link_order *);
540 /* Final link relocation routine. */
541 extern bfd_reloc_status_type _bfd_final_link_relocate
542 (reloc_howto_type *, bfd *, asection *, bfd_byte *,
543 bfd_vma, bfd_vma, bfd_vma);
545 /* Relocate a particular location by a howto and a value. */
546 extern bfd_reloc_status_type _bfd_relocate_contents
547 (reloc_howto_type *, bfd *, bfd_vma, bfd_byte *);
549 /* Link stabs in sections in the first pass. */
551 extern bfd_boolean _bfd_link_section_stabs
552 (bfd *, struct stab_info *, asection *, asection *, void **,
555 /* Eliminate stabs for discarded functions and symbols. */
556 extern bfd_boolean _bfd_discard_section_stabs
557 (bfd *, asection *, void *, bfd_boolean (*) (bfd_vma, void *), void *);
559 /* Write out the .stab section when linking stabs in sections. */
561 extern bfd_boolean _bfd_write_section_stabs
562 (bfd *, struct stab_info *, asection *, void **, bfd_byte *);
564 /* Write out the .stabstr string table when linking stabs in sections. */
566 extern bfd_boolean _bfd_write_stab_strings
567 (bfd *, struct stab_info *);
569 /* Find an offset within a .stab section when linking stabs in
572 extern bfd_vma _bfd_stab_section_offset
573 (asection *, void *, bfd_vma);
575 /* Register a SEC_MERGE section as a candidate for merging. */
577 extern bfd_boolean _bfd_add_merge_section
578 (bfd *, void **, asection *, void **);
580 /* Attempt to merge SEC_MERGE sections. */
582 extern bfd_boolean _bfd_merge_sections
583 (bfd *, struct bfd_link_info *, void *, void (*) (bfd *, asection *));
585 /* Write out a merged section. */
587 extern bfd_boolean _bfd_write_merged_section
588 (bfd *, asection *, void *);
590 /* Find an offset within a modified SEC_MERGE section. */
592 extern bfd_vma _bfd_merged_section_offset
593 (bfd *, asection **, void *, bfd_vma);
595 /* Create a string table. */
596 extern struct bfd_strtab_hash *_bfd_stringtab_init
599 /* Create an XCOFF .debug section style string table. */
600 extern struct bfd_strtab_hash *_bfd_xcoff_stringtab_init
603 /* Free a string table. */
604 extern void _bfd_stringtab_free
605 (struct bfd_strtab_hash *);
607 /* Get the size of a string table. */
608 extern bfd_size_type _bfd_stringtab_size
609 (struct bfd_strtab_hash *);
611 /* Add a string to a string table. */
612 extern bfd_size_type _bfd_stringtab_add
613 (struct bfd_strtab_hash *, const char *, bfd_boolean hash, bfd_boolean copy);
615 /* Write out a string table. */
616 extern bfd_boolean _bfd_stringtab_emit
617 (bfd *, struct bfd_strtab_hash *);
619 /* Check that endianness of input and output file match. */
620 extern bfd_boolean _bfd_generic_verify_endian_match
623 /* Macros to tell if bfds are read or write enabled.
625 Note that bfds open for read may be scribbled into if the fd passed
626 to bfd_fdopenr is actually open both for read and write
627 simultaneously. However an output bfd will never be open for
628 read. Therefore sometimes you want to check bfd_read_p or
629 !bfd_read_p, and only sometimes bfd_write_p.
632 #define bfd_read_p(abfd) \
633 ((abfd)->direction == read_direction || (abfd)->direction == both_direction)
634 #define bfd_write_p(abfd) \
635 ((abfd)->direction == write_direction || (abfd)->direction == both_direction)
640 #define BFD_ASSERT(x) \
641 do { if (!(x)) bfd_assert(__FILE__,__LINE__); } while (0)
644 do { bfd_assert(__FILE__,__LINE__); } while (0)
646 extern void _bfd_abort
647 (const char *, int, const char *) ATTRIBUTE_NORETURN;
649 /* if gcc >= 2.6, we can give a function name, too */
650 #if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 6)
651 #define __PRETTY_FUNCTION__ ((char *) NULL)
655 #define abort() _bfd_abort (__FILE__, __LINE__, __PRETTY_FUNCTION__)
657 /* Manipulate a system FILE but using BFD's "file_ptr", rather than
658 the system "off_t" or "off64_t", as the offset. */
659 extern file_ptr real_ftell (FILE *file);
660 extern int real_fseek (FILE *file, file_ptr offset, int whence);
661 extern FILE *real_fopen (const char *filename, const char *modes);
663 /* List of supported target vectors, and the default vector (if
664 bfd_default_vector[0] is NULL, there is no default). */
665 extern const bfd_target * const *bfd_target_vector;
666 extern const bfd_target *bfd_default_vector[];
668 /* List of associated target vectors. */
669 extern const bfd_target * const *bfd_associated_vector;
671 /* Functions shared by the ECOFF and MIPS ELF backends, which have no
672 other common header files. */
674 #if defined(__STDC__) || defined(ALMOST_STDC)
675 struct ecoff_find_line;
678 extern bfd_boolean _bfd_ecoff_locate_line
679 (bfd *, asection *, bfd_vma, struct ecoff_debug_info * const,
680 const struct ecoff_debug_swap * const, struct ecoff_find_line *,
681 const char **, const char **, unsigned int *);
682 extern bfd_boolean _bfd_ecoff_get_accumulated_pdr
683 (void *, bfd_byte *);
684 extern bfd_boolean _bfd_ecoff_get_accumulated_sym
685 (void *, bfd_byte *);
686 extern bfd_boolean _bfd_ecoff_get_accumulated_ss
687 (void *, bfd_byte *);
689 extern bfd_vma _bfd_get_gp_value
691 extern void _bfd_set_gp_value
694 /* Function shared by the COFF and ELF SH backends, which have no
695 other common header files. */
697 #ifndef _bfd_sh_align_load_span
698 extern bfd_boolean _bfd_sh_align_load_span
699 (bfd *, asection *, bfd_byte *,
700 bfd_boolean (*) (bfd *, asection *, void *, bfd_byte *, bfd_vma),
701 void *, bfd_vma **, bfd_vma *, bfd_vma, bfd_vma, bfd_boolean *);
704 /* This is the shape of the elements inside the already_linked hash
705 table. It maps a name onto a list of already_linked elements with
708 struct bfd_section_already_linked_hash_entry
710 struct bfd_hash_entry root;
711 struct bfd_section_already_linked *entry;
714 struct bfd_section_already_linked
716 struct bfd_section_already_linked *next;
720 extern struct bfd_section_already_linked_hash_entry *
721 bfd_section_already_linked_table_lookup (const char *);
722 extern void bfd_section_already_linked_table_insert
723 (struct bfd_section_already_linked_hash_entry *, asection *);
724 extern void bfd_section_already_linked_table_traverse
725 (bfd_boolean (*) (struct bfd_section_already_linked_hash_entry *,
728 extern bfd_vma read_unsigned_leb128 (bfd *, bfd_byte *, unsigned int *);
729 extern bfd_signed_vma read_signed_leb128 (bfd *, bfd_byte *, unsigned int *);