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, 2007
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 3 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,
25 MA 02110-1301, USA. */
29 /* Align an address upward to a boundary, expressed as a number of bytes.
30 E.g. align to an 8-byte boundary with argument of 8. Take care never
31 to wrap around if the address is within boundary-1 of the end of the
33 #define BFD_ALIGN(this, boundary) \
34 ((((bfd_vma) (this) + (boundary) - 1) >= (bfd_vma) (this)) \
35 ? (((bfd_vma) (this) + ((boundary) - 1)) & ~ (bfd_vma) ((boundary)-1)) \
38 /* If you want to read and write large blocks, you might want to do it
39 in quanta of this amount */
40 #define DEFAULT_BUFFERSIZE 8192
42 /* Set a tdata field. Can't use the other macros for this, since they
43 do casts, and casting to the left of assignment isn't portable. */
44 #define set_tdata(bfd, v) ((bfd)->tdata.any = (v))
46 /* If BFD_IN_MEMORY is set for a BFD, then the iostream fields points
47 to an instance of this structure. */
53 /* Buffer holding contents of BFD. */
57 struct section_hash_entry
59 struct bfd_hash_entry root;
63 /* tdata for an archive. For an input archive, cache
64 needs to be free()'d. For an output archive, symdefs do. */
67 file_ptr first_file_filepos;
68 /* Speed up searching the armap */
70 bfd *archive_head; /* Only interesting in output routines */
71 carsym *symdefs; /* the symdef entries */
72 symindex symdef_count; /* how many there are */
73 char *extended_names; /* clever intel extension */
74 bfd_size_type extended_names_size; /* Size of extended names */
75 /* when more compilers are standard C, this can be a time_t */
76 long armap_timestamp; /* Timestamp value written into armap.
77 This is used for BSD archives to check
78 that the timestamp is recent enough
79 for the BSD linker to not complain,
80 just before we finish writing an
82 file_ptr armap_datepos; /* Position within archive to seek to
83 rewrite the date field. */
84 void *tdata; /* Backend specific information. */
87 #define bfd_ardata(bfd) ((bfd)->tdata.aout_ar_data)
89 /* Goes in bfd's arelt_data slot */
91 char * arch_header; /* it's actually a string */
92 unsigned int parsed_size; /* octets of filesize not including ar_hdr */
93 char *filename; /* null-terminated */
96 #define arelt_size(bfd) (((struct areltdata *)((bfd)->arelt_data))->parsed_size)
98 extern void *bfd_malloc
100 extern void *bfd_realloc
101 (void *, bfd_size_type);
102 extern void *bfd_realloc_or_free
103 (void *, bfd_size_type);
104 extern void *bfd_zmalloc
106 extern void *bfd_malloc2
107 (bfd_size_type, bfd_size_type);
108 extern void *bfd_realloc2
109 (void *, bfd_size_type, bfd_size_type);
110 extern void *bfd_zmalloc2
111 (bfd_size_type, bfd_size_type);
113 extern void _bfd_default_error_handler (const char *s, ...);
114 extern bfd_error_handler_type _bfd_error_handler;
116 /* These routines allocate and free things on the BFD's objalloc. */
118 extern void *bfd_alloc
119 (bfd *, bfd_size_type);
120 extern void *bfd_zalloc
121 (bfd *, bfd_size_type);
122 extern void *bfd_alloc2
123 (bfd *, bfd_size_type, bfd_size_type);
124 extern void *bfd_zalloc2
125 (bfd *, bfd_size_type, bfd_size_type);
126 extern void bfd_release
129 bfd * _bfd_create_empty_archive_element_shell
131 bfd * _bfd_look_for_bfd_in_cache
133 bfd_boolean _bfd_add_bfd_to_archive_cache
134 (bfd *, file_ptr, bfd *);
135 bfd_boolean _bfd_generic_mkarchive
137 const bfd_target *bfd_generic_archive_p
139 bfd_boolean bfd_slurp_armap
141 bfd_boolean bfd_slurp_bsd_armap_f2
143 #define bfd_slurp_bsd_armap bfd_slurp_armap
144 #define bfd_slurp_coff_armap bfd_slurp_armap
145 bfd_boolean _bfd_slurp_extended_name_table
147 extern bfd_boolean _bfd_construct_extended_name_table
148 (bfd *, bfd_boolean, char **, bfd_size_type *);
149 bfd_boolean _bfd_write_archive_contents
151 bfd_boolean _bfd_compute_and_write_armap
152 (bfd *, unsigned int elength);
153 bfd *_bfd_get_elt_at_filepos
154 (bfd *archive, file_ptr filepos);
155 extern bfd *_bfd_generic_get_elt_at_index
161 bfd_boolean _bfd_free_cached_info
164 bfd_boolean bfd_false
168 void *bfd_nullvoidptr
181 bfd *_bfd_new_bfd_contained_in
183 const bfd_target *_bfd_dummy_target
186 void bfd_dont_truncate_arname
187 (bfd *abfd, const char *filename, char *hdr);
188 void bfd_bsd_truncate_arname
189 (bfd *abfd, const char *filename, char *hdr);
190 void bfd_gnu_truncate_arname
191 (bfd *abfd, const char *filename, char *hdr);
193 bfd_boolean bsd_write_armap
194 (bfd *arch, unsigned int elength, struct orl *map, unsigned int orl_count,
197 bfd_boolean coff_write_armap
198 (bfd *arch, unsigned int elength, struct orl *map, unsigned int orl_count,
201 extern void *_bfd_generic_read_ar_hdr
203 extern void _bfd_ar_spacepad
204 (char *, size_t, const char *, long);
206 extern void *_bfd_generic_read_ar_hdr_mag
207 (bfd *, const char *);
209 bfd * bfd_generic_openr_next_archived_file
210 (bfd *archive, bfd *last_file);
212 int bfd_generic_stat_arch_elt
213 (bfd *, struct stat *);
215 #define _bfd_read_ar_hdr(abfd) \
216 BFD_SEND (abfd, _bfd_read_ar_hdr_fn, (abfd))
218 /* Generic routines to use for BFD_JUMP_TABLE_GENERIC. Use
219 BFD_JUMP_TABLE_GENERIC (_bfd_generic). */
221 #define _bfd_generic_close_and_cleanup bfd_true
222 #define _bfd_generic_bfd_free_cached_info bfd_true
223 extern bfd_boolean _bfd_generic_new_section_hook
225 extern bfd_boolean _bfd_generic_get_section_contents
226 (bfd *, asection *, void *, file_ptr, bfd_size_type);
227 extern bfd_boolean _bfd_generic_get_section_contents_in_window
228 (bfd *, asection *, bfd_window *, file_ptr, bfd_size_type);
230 /* Generic routines to use for BFD_JUMP_TABLE_COPY. Use
231 BFD_JUMP_TABLE_COPY (_bfd_generic). */
233 #define _bfd_generic_bfd_copy_private_bfd_data \
234 ((bfd_boolean (*) (bfd *, bfd *)) bfd_true)
235 #define _bfd_generic_bfd_merge_private_bfd_data \
236 ((bfd_boolean (*) (bfd *, bfd *)) bfd_true)
237 #define _bfd_generic_bfd_set_private_flags \
238 ((bfd_boolean (*) (bfd *, flagword)) bfd_true)
239 #define _bfd_generic_bfd_copy_private_section_data \
240 ((bfd_boolean (*) (bfd *, asection *, bfd *, asection *)) bfd_true)
241 #define _bfd_generic_bfd_copy_private_symbol_data \
242 ((bfd_boolean (*) (bfd *, asymbol *, bfd *, asymbol *)) bfd_true)
243 #define _bfd_generic_bfd_copy_private_header_data \
244 ((bfd_boolean (*) (bfd *, bfd *)) bfd_true)
245 #define _bfd_generic_bfd_print_private_bfd_data \
246 ((bfd_boolean (*) (bfd *, void *)) bfd_true)
248 extern bfd_boolean _bfd_generic_init_private_section_data
249 (bfd *, asection *, bfd *, asection *, struct bfd_link_info *);
251 /* Routines to use for BFD_JUMP_TABLE_CORE when there is no core file
252 support. Use BFD_JUMP_TABLE_CORE (_bfd_nocore). */
254 extern char *_bfd_nocore_core_file_failing_command
256 extern int _bfd_nocore_core_file_failing_signal
258 extern bfd_boolean _bfd_nocore_core_file_matches_executable_p
261 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE when there is no archive
262 file support. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive). */
264 #define _bfd_noarchive_slurp_armap bfd_false
265 #define _bfd_noarchive_slurp_extended_name_table bfd_false
266 #define _bfd_noarchive_construct_extended_name_table \
267 ((bfd_boolean (*) (bfd *, char **, bfd_size_type *, const char **)) \
269 #define _bfd_noarchive_truncate_arname \
270 ((void (*) (bfd *, const char *, char *)) bfd_void)
271 #define _bfd_noarchive_write_armap \
272 ((bfd_boolean (*) (bfd *, unsigned int, struct orl *, unsigned int, int)) \
274 #define _bfd_noarchive_read_ar_hdr bfd_nullvoidptr
275 #define _bfd_noarchive_openr_next_archived_file \
276 ((bfd *(*) (bfd *, bfd *)) bfd_nullvoidptr)
277 #define _bfd_noarchive_get_elt_at_index \
278 ((bfd *(*) (bfd *, symindex)) bfd_nullvoidptr)
279 #define _bfd_noarchive_generic_stat_arch_elt bfd_generic_stat_arch_elt
280 #define _bfd_noarchive_update_armap_timestamp bfd_false
282 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get BSD style
283 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_bsd). */
285 #define _bfd_archive_bsd_slurp_armap bfd_slurp_bsd_armap
286 #define _bfd_archive_bsd_slurp_extended_name_table \
287 _bfd_slurp_extended_name_table
288 extern bfd_boolean _bfd_archive_bsd_construct_extended_name_table
289 (bfd *, char **, bfd_size_type *, const char **);
290 #define _bfd_archive_bsd_truncate_arname bfd_bsd_truncate_arname
291 #define _bfd_archive_bsd_write_armap bsd_write_armap
292 #define _bfd_archive_bsd_read_ar_hdr _bfd_generic_read_ar_hdr
293 #define _bfd_archive_bsd_openr_next_archived_file \
294 bfd_generic_openr_next_archived_file
295 #define _bfd_archive_bsd_get_elt_at_index _bfd_generic_get_elt_at_index
296 #define _bfd_archive_bsd_generic_stat_arch_elt \
297 bfd_generic_stat_arch_elt
298 extern bfd_boolean _bfd_archive_bsd_update_armap_timestamp
301 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get COFF style
302 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff). */
304 #define _bfd_archive_coff_slurp_armap bfd_slurp_coff_armap
305 #define _bfd_archive_coff_slurp_extended_name_table \
306 _bfd_slurp_extended_name_table
307 extern bfd_boolean _bfd_archive_coff_construct_extended_name_table
308 (bfd *, char **, bfd_size_type *, const char **);
309 #define _bfd_archive_coff_truncate_arname bfd_dont_truncate_arname
310 #define _bfd_archive_coff_write_armap coff_write_armap
311 #define _bfd_archive_coff_read_ar_hdr _bfd_generic_read_ar_hdr
312 #define _bfd_archive_coff_openr_next_archived_file \
313 bfd_generic_openr_next_archived_file
314 #define _bfd_archive_coff_get_elt_at_index _bfd_generic_get_elt_at_index
315 #define _bfd_archive_coff_generic_stat_arch_elt \
316 bfd_generic_stat_arch_elt
317 #define _bfd_archive_coff_update_armap_timestamp bfd_true
319 /* Routines to use for BFD_JUMP_TABLE_SYMBOLS where there is no symbol
320 support. Use BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols). */
322 #define _bfd_nosymbols_get_symtab_upper_bound _bfd_n1
323 #define _bfd_nosymbols_canonicalize_symtab \
324 ((long (*) (bfd *, asymbol **)) _bfd_n1)
325 #define _bfd_nosymbols_make_empty_symbol _bfd_generic_make_empty_symbol
326 #define _bfd_nosymbols_print_symbol \
327 ((void (*) (bfd *, void *, asymbol *, bfd_print_symbol_type)) bfd_void)
328 #define _bfd_nosymbols_get_symbol_info \
329 ((void (*) (bfd *, asymbol *, symbol_info *)) bfd_void)
330 #define _bfd_nosymbols_bfd_is_local_label_name \
331 ((bfd_boolean (*) (bfd *, const char *)) bfd_false)
332 #define _bfd_nosymbols_bfd_is_target_special_symbol \
333 ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
334 #define _bfd_nosymbols_get_lineno \
335 ((alent *(*) (bfd *, asymbol *)) bfd_nullvoidptr)
336 #define _bfd_nosymbols_find_nearest_line \
337 ((bfd_boolean (*) (bfd *, asection *, asymbol **, bfd_vma, const char **, \
338 const char **, unsigned int *)) \
340 #define _bfd_nosymbols_find_inliner_info \
341 ((bfd_boolean (*) (bfd *, const char **, const char **, unsigned int *)) \
343 #define _bfd_nosymbols_bfd_make_debug_symbol \
344 ((asymbol *(*) (bfd *, void *, unsigned long)) bfd_nullvoidptr)
345 #define _bfd_nosymbols_read_minisymbols \
346 ((long (*) (bfd *, bfd_boolean, void **, unsigned int *)) _bfd_n1)
347 #define _bfd_nosymbols_minisymbol_to_symbol \
348 ((asymbol *(*) (bfd *, bfd_boolean, const void *, asymbol *)) \
351 /* Routines to use for BFD_JUMP_TABLE_RELOCS when there is no reloc
352 support. Use BFD_JUMP_TABLE_RELOCS (_bfd_norelocs). */
354 extern long _bfd_norelocs_get_reloc_upper_bound (bfd *, asection *);
355 extern long _bfd_norelocs_canonicalize_reloc (bfd *, asection *,
356 arelent **, asymbol **);
357 #define _bfd_norelocs_bfd_reloc_type_lookup \
358 ((reloc_howto_type *(*) (bfd *, bfd_reloc_code_real_type)) bfd_nullvoidptr)
359 #define _bfd_norelocs_bfd_reloc_name_lookup \
360 ((reloc_howto_type *(*) (bfd *, const char *)) bfd_nullvoidptr)
362 /* Routines to use for BFD_JUMP_TABLE_WRITE for targets which may not
363 be written. Use BFD_JUMP_TABLE_WRITE (_bfd_nowrite). */
365 #define _bfd_nowrite_set_arch_mach \
366 ((bfd_boolean (*) (bfd *, enum bfd_architecture, unsigned long)) \
368 #define _bfd_nowrite_set_section_contents \
369 ((bfd_boolean (*) (bfd *, asection *, const void *, file_ptr, bfd_size_type)) \
372 /* Generic routines to use for BFD_JUMP_TABLE_WRITE. Use
373 BFD_JUMP_TABLE_WRITE (_bfd_generic). */
375 #define _bfd_generic_set_arch_mach bfd_default_set_arch_mach
376 extern bfd_boolean _bfd_generic_set_section_contents
377 (bfd *, asection *, const void *, file_ptr, bfd_size_type);
379 /* Routines to use for BFD_JUMP_TABLE_LINK for targets which do not
380 support linking. Use BFD_JUMP_TABLE_LINK (_bfd_nolink). */
382 #define _bfd_nolink_sizeof_headers \
383 ((int (*) (bfd *, struct bfd_link_info *)) bfd_0)
384 #define _bfd_nolink_bfd_get_relocated_section_contents \
385 ((bfd_byte *(*) (bfd *, struct bfd_link_info *, struct bfd_link_order *, \
386 bfd_byte *, bfd_boolean, asymbol **)) \
388 #define _bfd_nolink_bfd_relax_section \
390 (bfd *, asection *, struct bfd_link_info *, bfd_boolean *)) \
392 #define _bfd_nolink_bfd_gc_sections \
393 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) \
395 #define _bfd_nolink_bfd_merge_sections \
396 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) \
398 #define _bfd_nolink_bfd_is_group_section \
399 ((bfd_boolean (*) (bfd *, const struct bfd_section *)) \
401 #define _bfd_nolink_bfd_discard_group \
402 ((bfd_boolean (*) (bfd *, struct bfd_section *)) \
404 #define _bfd_nolink_bfd_link_hash_table_create \
405 ((struct bfd_link_hash_table *(*) (bfd *)) bfd_nullvoidptr)
406 #define _bfd_nolink_bfd_link_hash_table_free \
407 ((void (*) (struct bfd_link_hash_table *)) bfd_void)
408 #define _bfd_nolink_bfd_link_add_symbols \
409 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) bfd_false)
410 #define _bfd_nolink_bfd_link_just_syms \
411 ((void (*) (asection *, struct bfd_link_info *)) bfd_void)
412 #define _bfd_nolink_bfd_final_link \
413 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) bfd_false)
414 #define _bfd_nolink_bfd_link_split_section \
415 ((bfd_boolean (*) (bfd *, struct bfd_section *)) bfd_false)
416 #define _bfd_nolink_section_already_linked \
417 ((void (*) (bfd *, struct bfd_section *, struct bfd_link_info *)) bfd_void)
419 /* Routines to use for BFD_JUMP_TABLE_DYNAMIC for targets which do not
420 have dynamic symbols or relocs. Use BFD_JUMP_TABLE_DYNAMIC
423 #define _bfd_nodynamic_get_dynamic_symtab_upper_bound _bfd_n1
424 #define _bfd_nodynamic_canonicalize_dynamic_symtab \
425 ((long (*) (bfd *, asymbol **)) _bfd_n1)
426 #define _bfd_nodynamic_get_synthetic_symtab \
427 ((long (*) (bfd *, long, asymbol **, long, asymbol **, asymbol **)) _bfd_n1)
428 #define _bfd_nodynamic_get_dynamic_reloc_upper_bound _bfd_n1
429 #define _bfd_nodynamic_canonicalize_dynamic_reloc \
430 ((long (*) (bfd *, arelent **, asymbol **)) _bfd_n1)
432 /* Generic routine to determine of the given symbol is a local
434 extern bfd_boolean bfd_generic_is_local_label_name
435 (bfd *, const char *);
437 /* Generic minisymbol routines. */
438 extern long _bfd_generic_read_minisymbols
439 (bfd *, bfd_boolean, void **, unsigned int *);
440 extern asymbol *_bfd_generic_minisymbol_to_symbol
441 (bfd *, bfd_boolean, const void *, asymbol *);
443 /* Find the nearest line using .stab/.stabstr sections. */
444 extern bfd_boolean _bfd_stab_section_find_nearest_line
445 (bfd *, asymbol **, asection *, bfd_vma, bfd_boolean *,
446 const char **, const char **, unsigned int *, void **);
448 /* Find the nearest line using DWARF 1 debugging information. */
449 extern bfd_boolean _bfd_dwarf1_find_nearest_line
450 (bfd *, asection *, asymbol **, bfd_vma, const char **,
451 const char **, unsigned int *);
453 /* Find the nearest line using DWARF 2 debugging information. */
454 extern bfd_boolean _bfd_dwarf2_find_nearest_line
455 (bfd *, asection *, asymbol **, bfd_vma, const char **, const char **,
456 unsigned int *, unsigned int, void **);
458 /* Find the line using DWARF 2 debugging information. */
459 extern bfd_boolean _bfd_dwarf2_find_line
460 (bfd *, asymbol **, asymbol *, const char **,
461 unsigned int *, unsigned int, void **);
463 bfd_boolean _bfd_generic_find_line
464 (bfd *, asymbol **, asymbol *, const char **, unsigned int *);
466 /* Find inliner info after calling bfd_find_nearest_line. */
467 extern bfd_boolean _bfd_dwarf2_find_inliner_info
468 (bfd *, const char **, const char **, unsigned int *, void **);
470 /* Create a new section entry. */
471 extern struct bfd_hash_entry *bfd_section_hash_newfunc
472 (struct bfd_hash_entry *, struct bfd_hash_table *, const char *);
474 /* A routine to create entries for a bfd_link_hash_table. */
475 extern struct bfd_hash_entry *_bfd_link_hash_newfunc
476 (struct bfd_hash_entry *entry, struct bfd_hash_table *table,
479 /* Initialize a bfd_link_hash_table. */
480 extern bfd_boolean _bfd_link_hash_table_init
481 (struct bfd_link_hash_table *, bfd *,
482 struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
483 struct bfd_hash_table *,
487 /* Generic link hash table creation routine. */
488 extern struct bfd_link_hash_table *_bfd_generic_link_hash_table_create
491 /* Generic link hash table destruction routine. */
492 extern void _bfd_generic_link_hash_table_free
493 (struct bfd_link_hash_table *);
495 /* Generic add symbol routine. */
496 extern bfd_boolean _bfd_generic_link_add_symbols
497 (bfd *, struct bfd_link_info *);
499 /* Generic add symbol routine. This version is used by targets for
500 which the linker must collect constructors and destructors by name,
501 as the collect2 program does. */
502 extern bfd_boolean _bfd_generic_link_add_symbols_collect
503 (bfd *, struct bfd_link_info *);
505 /* Generic archive add symbol routine. */
506 extern bfd_boolean _bfd_generic_link_add_archive_symbols
507 (bfd *, struct bfd_link_info *,
508 bfd_boolean (*) (bfd *, struct bfd_link_info *, bfd_boolean *));
510 /* Forward declaration to avoid prototype errors. */
511 typedef struct bfd_link_hash_entry _bfd_link_hash_entry;
513 /* Generic routine to add a single symbol. */
514 extern bfd_boolean _bfd_generic_link_add_one_symbol
515 (struct bfd_link_info *, bfd *, const char *name, flagword,
516 asection *, bfd_vma, const char *, bfd_boolean copy,
517 bfd_boolean constructor, struct bfd_link_hash_entry **);
519 /* Generic routine to mark section as supplying symbols only. */
520 extern void _bfd_generic_link_just_syms
521 (asection *, struct bfd_link_info *);
523 /* Generic link routine. */
524 extern bfd_boolean _bfd_generic_final_link
525 (bfd *, struct bfd_link_info *);
527 extern bfd_boolean _bfd_generic_link_split_section
528 (bfd *, struct bfd_section *);
530 extern void _bfd_generic_section_already_linked
531 (bfd *, struct bfd_section *, struct bfd_link_info *);
533 /* Generic reloc_link_order processing routine. */
534 extern bfd_boolean _bfd_generic_reloc_link_order
535 (bfd *, struct bfd_link_info *, asection *, struct bfd_link_order *);
537 /* Default link order processing routine. */
538 extern bfd_boolean _bfd_default_link_order
539 (bfd *, struct bfd_link_info *, asection *, struct bfd_link_order *);
541 /* Count the number of reloc entries in a link order list. */
542 extern unsigned int _bfd_count_link_order_relocs
543 (struct bfd_link_order *);
545 /* Final link relocation routine. */
546 extern bfd_reloc_status_type _bfd_final_link_relocate
547 (reloc_howto_type *, bfd *, asection *, bfd_byte *,
548 bfd_vma, bfd_vma, bfd_vma);
550 /* Relocate a particular location by a howto and a value. */
551 extern bfd_reloc_status_type _bfd_relocate_contents
552 (reloc_howto_type *, bfd *, bfd_vma, bfd_byte *);
554 /* Clear a given location using a given howto. */
555 extern void _bfd_clear_contents (reloc_howto_type *howto, bfd *input_bfd,
558 /* Link stabs in sections in the first pass. */
560 extern bfd_boolean _bfd_link_section_stabs
561 (bfd *, struct stab_info *, asection *, asection *, void **,
564 /* Eliminate stabs for discarded functions and symbols. */
565 extern bfd_boolean _bfd_discard_section_stabs
566 (bfd *, asection *, void *, bfd_boolean (*) (bfd_vma, void *), void *);
568 /* Write out the .stab section when linking stabs in sections. */
570 extern bfd_boolean _bfd_write_section_stabs
571 (bfd *, struct stab_info *, asection *, void **, bfd_byte *);
573 /* Write out the .stabstr string table when linking stabs in sections. */
575 extern bfd_boolean _bfd_write_stab_strings
576 (bfd *, struct stab_info *);
578 /* Find an offset within a .stab section when linking stabs in
581 extern bfd_vma _bfd_stab_section_offset
582 (asection *, void *, bfd_vma);
584 /* Register a SEC_MERGE section as a candidate for merging. */
586 extern bfd_boolean _bfd_add_merge_section
587 (bfd *, void **, asection *, void **);
589 /* Attempt to merge SEC_MERGE sections. */
591 extern bfd_boolean _bfd_merge_sections
592 (bfd *, struct bfd_link_info *, void *, void (*) (bfd *, asection *));
594 /* Write out a merged section. */
596 extern bfd_boolean _bfd_write_merged_section
597 (bfd *, asection *, void *);
599 /* Find an offset within a modified SEC_MERGE section. */
601 extern bfd_vma _bfd_merged_section_offset
602 (bfd *, asection **, void *, bfd_vma);
604 /* Create a string table. */
605 extern struct bfd_strtab_hash *_bfd_stringtab_init
608 /* Create an XCOFF .debug section style string table. */
609 extern struct bfd_strtab_hash *_bfd_xcoff_stringtab_init
612 /* Free a string table. */
613 extern void _bfd_stringtab_free
614 (struct bfd_strtab_hash *);
616 /* Get the size of a string table. */
617 extern bfd_size_type _bfd_stringtab_size
618 (struct bfd_strtab_hash *);
620 /* Add a string to a string table. */
621 extern bfd_size_type _bfd_stringtab_add
622 (struct bfd_strtab_hash *, const char *, bfd_boolean hash, bfd_boolean copy);
624 /* Write out a string table. */
625 extern bfd_boolean _bfd_stringtab_emit
626 (bfd *, struct bfd_strtab_hash *);
628 /* Check that endianness of input and output file match. */
629 extern bfd_boolean _bfd_generic_verify_endian_match
632 /* Macros to tell if bfds are read or write enabled.
634 Note that bfds open for read may be scribbled into if the fd passed
635 to bfd_fdopenr is actually open both for read and write
636 simultaneously. However an output bfd will never be open for
637 read. Therefore sometimes you want to check bfd_read_p or
638 !bfd_read_p, and only sometimes bfd_write_p.
641 #define bfd_read_p(abfd) \
642 ((abfd)->direction == read_direction || (abfd)->direction == both_direction)
643 #define bfd_write_p(abfd) \
644 ((abfd)->direction == write_direction || (abfd)->direction == both_direction)
649 #define BFD_ASSERT(x) \
650 do { if (!(x)) bfd_assert(__FILE__,__LINE__); } while (0)
653 do { bfd_assert(__FILE__,__LINE__); } while (0)
655 extern void _bfd_abort
656 (const char *, int, const char *) ATTRIBUTE_NORETURN;
658 /* if gcc >= 2.6, we can give a function name, too */
659 #if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 6)
660 #define __PRETTY_FUNCTION__ ((char *) NULL)
664 #define abort() _bfd_abort (__FILE__, __LINE__, __PRETTY_FUNCTION__)
666 /* Manipulate a system FILE but using BFD's "file_ptr", rather than
667 the system "off_t" or "off64_t", as the offset. */
668 extern file_ptr real_ftell (FILE *file);
669 extern int real_fseek (FILE *file, file_ptr offset, int whence);
670 extern FILE *real_fopen (const char *filename, const char *modes);
672 /* List of supported target vectors, and the default vector (if
673 bfd_default_vector[0] is NULL, there is no default). */
674 extern const bfd_target * const *bfd_target_vector;
675 extern const bfd_target *bfd_default_vector[];
677 /* List of associated target vectors. */
678 extern const bfd_target * const *bfd_associated_vector;
680 /* Functions shared by the ECOFF and MIPS ELF backends, which have no
681 other common header files. */
683 #if defined(__STDC__) || defined(ALMOST_STDC)
684 struct ecoff_find_line;
687 extern bfd_boolean _bfd_ecoff_locate_line
688 (bfd *, asection *, bfd_vma, struct ecoff_debug_info * const,
689 const struct ecoff_debug_swap * const, struct ecoff_find_line *,
690 const char **, const char **, unsigned int *);
691 extern bfd_boolean _bfd_ecoff_get_accumulated_pdr
692 (void *, bfd_byte *);
693 extern bfd_boolean _bfd_ecoff_get_accumulated_sym
694 (void *, bfd_byte *);
695 extern bfd_boolean _bfd_ecoff_get_accumulated_ss
696 (void *, bfd_byte *);
698 extern bfd_vma _bfd_get_gp_value
700 extern void _bfd_set_gp_value
703 /* Function shared by the COFF and ELF SH backends, which have no
704 other common header files. */
706 #ifndef _bfd_sh_align_load_span
707 extern bfd_boolean _bfd_sh_align_load_span
708 (bfd *, asection *, bfd_byte *,
709 bfd_boolean (*) (bfd *, asection *, void *, bfd_byte *, bfd_vma),
710 void *, bfd_vma **, bfd_vma *, bfd_vma, bfd_vma, bfd_boolean *);
713 /* This is the shape of the elements inside the already_linked hash
714 table. It maps a name onto a list of already_linked elements with
717 struct bfd_section_already_linked_hash_entry
719 struct bfd_hash_entry root;
720 struct bfd_section_already_linked *entry;
723 struct bfd_section_already_linked
725 struct bfd_section_already_linked *next;
729 extern struct bfd_section_already_linked_hash_entry *
730 bfd_section_already_linked_table_lookup (const char *);
731 extern bfd_boolean bfd_section_already_linked_table_insert
732 (struct bfd_section_already_linked_hash_entry *, asection *);
733 extern void bfd_section_already_linked_table_traverse
734 (bfd_boolean (*) (struct bfd_section_already_linked_hash_entry *,
737 extern bfd_vma read_unsigned_leb128 (bfd *, bfd_byte *, unsigned int *);
738 extern bfd_signed_vma read_signed_leb128 (bfd *, bfd_byte *, unsigned int *);