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, 2008, 2009,
7 Free Software Foundation, Inc.
9 Written by Cygnus Support.
11 This file is part of BFD, the Binary File Descriptor library.
13 This program is free software; you can redistribute it and/or modify
14 it under the terms of the GNU General Public License as published by
15 the Free Software Foundation; either version 3 of the License, or
16 (at your option) any later version.
18 This program is distributed in the hope that it will be useful,
19 but WITHOUT ANY WARRANTY; without even the implied warranty of
20 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 GNU General Public License for more details.
23 You should have received a copy of the GNU General Public License
24 along with this program; if not, write to the Free Software
25 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
26 MA 02110-1301, USA. */
30 /* Align an address upward to a boundary, expressed as a number of bytes.
31 E.g. align to an 8-byte boundary with argument of 8. Take care never
32 to wrap around if the address is within boundary-1 of the end of the
34 #define BFD_ALIGN(this, boundary) \
35 ((((bfd_vma) (this) + (boundary) - 1) >= (bfd_vma) (this)) \
36 ? (((bfd_vma) (this) + ((boundary) - 1)) & ~ (bfd_vma) ((boundary)-1)) \
39 /* If you want to read and write large blocks, you might want to do it
40 in quanta of this amount */
41 #define DEFAULT_BUFFERSIZE 8192
43 /* Set a tdata field. Can't use the other macros for this, since they
44 do casts, and casting to the left of assignment isn't portable. */
45 #define set_tdata(bfd, v) ((bfd)->tdata.any = (v))
47 /* If BFD_IN_MEMORY is set for a BFD, then the iostream fields points
48 to an instance of this structure. */
54 /* Buffer holding contents of BFD. */
58 struct section_hash_entry
60 struct bfd_hash_entry root;
64 /* tdata for an archive. For an input archive, cache
65 needs to be free()'d. For an output archive, symdefs do. */
68 file_ptr first_file_filepos;
69 /* Speed up searching the armap */
71 bfd *archive_head; /* Only interesting in output routines */
72 carsym *symdefs; /* the symdef entries */
73 symindex symdef_count; /* how many there are */
74 char *extended_names; /* clever intel extension */
75 bfd_size_type extended_names_size; /* Size of extended names */
76 /* when more compilers are standard C, this can be a time_t */
77 long armap_timestamp; /* Timestamp value written into armap.
78 This is used for BSD archives to check
79 that the timestamp is recent enough
80 for the BSD linker to not complain,
81 just before we finish writing an
83 file_ptr armap_datepos; /* Position within archive to seek to
84 rewrite the date field. */
85 void *tdata; /* Backend specific information. */
88 #define bfd_ardata(bfd) ((bfd)->tdata.aout_ar_data)
90 /* Goes in bfd's arelt_data slot */
92 char * arch_header; /* it's actually a string */
93 unsigned int parsed_size; /* octets of filesize not including ar_hdr */
94 unsigned int extra_size; /* BSD4.4: extra bytes after the header. */
95 char *filename; /* null-terminated */
96 file_ptr origin; /* for element of a thin archive */
99 #define arelt_size(bfd) (((struct areltdata *)((bfd)->arelt_data))->parsed_size)
101 extern void *bfd_malloc
103 extern void *bfd_realloc
104 (void *, bfd_size_type);
105 extern void *bfd_realloc_or_free
106 (void *, bfd_size_type);
107 extern void *bfd_zmalloc
109 extern void *bfd_malloc2
110 (bfd_size_type, bfd_size_type);
111 extern void *bfd_realloc2
112 (void *, bfd_size_type, bfd_size_type);
113 extern void *bfd_zmalloc2
114 (bfd_size_type, bfd_size_type);
116 extern void _bfd_default_error_handler (const char *s, ...);
117 extern bfd_error_handler_type _bfd_error_handler;
119 /* These routines allocate and free things on the BFD's objalloc. */
121 extern void *bfd_alloc
122 (bfd *, bfd_size_type);
123 extern void *bfd_zalloc
124 (bfd *, bfd_size_type);
125 extern void *bfd_alloc2
126 (bfd *, bfd_size_type, bfd_size_type);
127 extern void *bfd_zalloc2
128 (bfd *, bfd_size_type, bfd_size_type);
129 extern void bfd_release
132 bfd * _bfd_create_empty_archive_element_shell
134 bfd * _bfd_look_for_bfd_in_cache
136 bfd_boolean _bfd_add_bfd_to_archive_cache
137 (bfd *, file_ptr, bfd *);
138 bfd_boolean _bfd_generic_mkarchive
140 char *_bfd_append_relative_path
141 (bfd *arch, char *elt_name);
142 const bfd_target *bfd_generic_archive_p
144 bfd_boolean bfd_slurp_armap
146 bfd_boolean bfd_slurp_bsd_armap_f2
148 #define bfd_slurp_bsd_armap bfd_slurp_armap
149 #define bfd_slurp_coff_armap bfd_slurp_armap
150 bfd_boolean _bfd_slurp_extended_name_table
152 extern bfd_boolean _bfd_construct_extended_name_table
153 (bfd *, bfd_boolean, char **, bfd_size_type *);
154 bfd_boolean _bfd_write_archive_contents
156 bfd_boolean _bfd_compute_and_write_armap
157 (bfd *, unsigned int elength);
158 bfd *_bfd_get_elt_at_filepos
159 (bfd *archive, file_ptr filepos);
160 extern bfd *_bfd_generic_get_elt_at_index
166 bfd_boolean _bfd_free_cached_info
169 bfd_boolean bfd_false
173 void *bfd_nullvoidptr
186 bfd *_bfd_new_bfd_contained_in
188 const bfd_target *_bfd_dummy_target
191 void bfd_dont_truncate_arname
192 (bfd *abfd, const char *filename, char *hdr);
193 void bfd_bsd_truncate_arname
194 (bfd *abfd, const char *filename, char *hdr);
195 void bfd_gnu_truncate_arname
196 (bfd *abfd, const char *filename, char *hdr);
198 bfd_boolean bsd_write_armap
199 (bfd *arch, unsigned int elength, struct orl *map, unsigned int orl_count,
202 bfd_boolean coff_write_armap
203 (bfd *arch, unsigned int elength, struct orl *map, unsigned int orl_count,
206 extern void *_bfd_generic_read_ar_hdr
208 extern void _bfd_ar_spacepad
209 (char *, size_t, const char *, long);
211 extern void *_bfd_generic_read_ar_hdr_mag
212 (bfd *, const char *);
214 extern bfd_boolean _bfd_generic_write_ar_hdr
217 extern bfd_boolean _bfd_bsd44_write_ar_hdr
220 bfd * bfd_generic_openr_next_archived_file
221 (bfd *archive, bfd *last_file);
223 int bfd_generic_stat_arch_elt
224 (bfd *, struct stat *);
226 #define _bfd_read_ar_hdr(abfd) \
227 BFD_SEND (abfd, _bfd_read_ar_hdr_fn, (abfd))
228 #define _bfd_write_ar_hdr(archive, abfd) \
229 BFD_SEND (abfd, _bfd_write_ar_hdr_fn, (archive, abfd))
231 /* Generic routines to use for BFD_JUMP_TABLE_GENERIC. Use
232 BFD_JUMP_TABLE_GENERIC (_bfd_generic). */
234 #define _bfd_generic_close_and_cleanup bfd_true
235 #define _bfd_generic_bfd_free_cached_info bfd_true
236 extern bfd_boolean _bfd_generic_new_section_hook
238 extern bfd_boolean _bfd_generic_get_section_contents
239 (bfd *, asection *, void *, file_ptr, bfd_size_type);
240 extern bfd_boolean _bfd_generic_get_section_contents_in_window
241 (bfd *, asection *, bfd_window *, file_ptr, bfd_size_type);
243 /* Generic routines to use for BFD_JUMP_TABLE_COPY. Use
244 BFD_JUMP_TABLE_COPY (_bfd_generic). */
246 #define _bfd_generic_bfd_copy_private_bfd_data \
247 ((bfd_boolean (*) (bfd *, bfd *)) bfd_true)
248 #define _bfd_generic_bfd_merge_private_bfd_data \
249 ((bfd_boolean (*) (bfd *, bfd *)) bfd_true)
250 #define _bfd_generic_bfd_set_private_flags \
251 ((bfd_boolean (*) (bfd *, flagword)) bfd_true)
252 #define _bfd_generic_bfd_copy_private_section_data \
253 ((bfd_boolean (*) (bfd *, asection *, bfd *, asection *)) bfd_true)
254 #define _bfd_generic_bfd_copy_private_symbol_data \
255 ((bfd_boolean (*) (bfd *, asymbol *, bfd *, asymbol *)) bfd_true)
256 #define _bfd_generic_bfd_copy_private_header_data \
257 ((bfd_boolean (*) (bfd *, bfd *)) bfd_true)
258 #define _bfd_generic_bfd_print_private_bfd_data \
259 ((bfd_boolean (*) (bfd *, void *)) bfd_true)
261 extern bfd_boolean _bfd_generic_init_private_section_data
262 (bfd *, asection *, bfd *, asection *, struct bfd_link_info *);
264 /* Routines to use for BFD_JUMP_TABLE_CORE when there is no core file
265 support. Use BFD_JUMP_TABLE_CORE (_bfd_nocore). */
267 extern char *_bfd_nocore_core_file_failing_command
269 extern int _bfd_nocore_core_file_failing_signal
271 extern bfd_boolean _bfd_nocore_core_file_matches_executable_p
274 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE when there is no archive
275 file support. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive). */
277 #define _bfd_noarchive_slurp_armap bfd_false
278 #define _bfd_noarchive_slurp_extended_name_table bfd_false
279 #define _bfd_noarchive_construct_extended_name_table \
280 ((bfd_boolean (*) (bfd *, char **, bfd_size_type *, const char **)) \
282 #define _bfd_noarchive_truncate_arname \
283 ((void (*) (bfd *, const char *, char *)) bfd_void)
284 #define _bfd_noarchive_write_armap \
285 ((bfd_boolean (*) (bfd *, unsigned int, struct orl *, unsigned int, int)) \
287 #define _bfd_noarchive_read_ar_hdr bfd_nullvoidptr
288 #define _bfd_noarchive_write_ar_hdr \
289 ((bfd_boolean (*) (bfd *, bfd *)) bfd_false)
290 #define _bfd_noarchive_openr_next_archived_file \
291 ((bfd *(*) (bfd *, bfd *)) bfd_nullvoidptr)
292 #define _bfd_noarchive_get_elt_at_index \
293 ((bfd *(*) (bfd *, symindex)) bfd_nullvoidptr)
294 #define _bfd_noarchive_generic_stat_arch_elt bfd_generic_stat_arch_elt
295 #define _bfd_noarchive_update_armap_timestamp bfd_false
297 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get BSD style
298 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_bsd). */
300 #define _bfd_archive_bsd_slurp_armap bfd_slurp_bsd_armap
301 #define _bfd_archive_bsd_slurp_extended_name_table \
302 _bfd_slurp_extended_name_table
303 extern bfd_boolean _bfd_archive_bsd_construct_extended_name_table
304 (bfd *, char **, bfd_size_type *, const char **);
305 #define _bfd_archive_bsd_truncate_arname bfd_bsd_truncate_arname
306 #define _bfd_archive_bsd_write_armap bsd_write_armap
307 #define _bfd_archive_bsd_read_ar_hdr _bfd_generic_read_ar_hdr
308 #define _bfd_archive_bsd_write_ar_hdr _bfd_generic_write_ar_hdr
309 #define _bfd_archive_bsd_openr_next_archived_file \
310 bfd_generic_openr_next_archived_file
311 #define _bfd_archive_bsd_get_elt_at_index _bfd_generic_get_elt_at_index
312 #define _bfd_archive_bsd_generic_stat_arch_elt \
313 bfd_generic_stat_arch_elt
314 extern bfd_boolean _bfd_archive_bsd_update_armap_timestamp
317 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get COFF style
318 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff). */
320 #define _bfd_archive_coff_slurp_armap bfd_slurp_coff_armap
321 #define _bfd_archive_coff_slurp_extended_name_table \
322 _bfd_slurp_extended_name_table
323 extern bfd_boolean _bfd_archive_coff_construct_extended_name_table
324 (bfd *, char **, bfd_size_type *, const char **);
325 #define _bfd_archive_coff_truncate_arname bfd_dont_truncate_arname
326 #define _bfd_archive_coff_write_armap coff_write_armap
327 #define _bfd_archive_coff_read_ar_hdr _bfd_generic_read_ar_hdr
328 #define _bfd_archive_coff_write_ar_hdr _bfd_generic_write_ar_hdr
329 #define _bfd_archive_coff_openr_next_archived_file \
330 bfd_generic_openr_next_archived_file
331 #define _bfd_archive_coff_get_elt_at_index _bfd_generic_get_elt_at_index
332 #define _bfd_archive_coff_generic_stat_arch_elt \
333 bfd_generic_stat_arch_elt
334 #define _bfd_archive_coff_update_armap_timestamp bfd_true
336 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get BSD4.4 style
337 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_bsd44). */
339 #define _bfd_archive_bsd44_slurp_armap bfd_slurp_bsd_armap
340 #define _bfd_archive_bsd44_slurp_extended_name_table \
341 _bfd_slurp_extended_name_table
342 extern bfd_boolean _bfd_archive_bsd44_construct_extended_name_table
343 (bfd *, char **, bfd_size_type *, const char **);
344 #define _bfd_archive_bsd44_truncate_arname bfd_bsd_truncate_arname
345 #define _bfd_archive_bsd44_write_armap bsd_write_armap
346 #define _bfd_archive_bsd44_read_ar_hdr _bfd_generic_read_ar_hdr
347 #define _bfd_archive_bsd44_write_ar_hdr _bfd_bsd44_write_ar_hdr
348 #define _bfd_archive_bsd44_openr_next_archived_file \
349 bfd_generic_openr_next_archived_file
350 #define _bfd_archive_bsd44_get_elt_at_index _bfd_generic_get_elt_at_index
351 #define _bfd_archive_bsd44_generic_stat_arch_elt \
352 bfd_generic_stat_arch_elt
353 #define _bfd_archive_bsd44_update_armap_timestamp \
354 _bfd_archive_bsd_update_armap_timestamp
356 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get VMS style
357 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_vms_lib). Some of them
358 are irrelevant and never called, so defined as NULL. */
360 extern bfd_boolean _bfd_vms_lib_write_archive_contents (bfd *arch);
361 #define _bfd_vms_lib_slurp_armap NULL
362 #define _bfd_vms_lib_slurp_extended_name_table NULL
363 #define _bfd_vms_lib_construct_extended_name_table NULL
364 #define _bfd_vms_lib_truncate_arname NULL
365 #define _bfd_vms_lib_write_armap NULL
366 #define _bfd_vms_lib_read_ar_hdr NULL
367 #define _bfd_vms_lib_write_ar_hdr NULL
368 extern bfd *_bfd_vms_lib_openr_next_archived_file (bfd *, bfd *);
369 extern bfd *_bfd_vms_lib_get_elt_at_index (bfd *, symindex);
370 extern int _bfd_vms_lib_generic_stat_arch_elt (bfd *, struct stat *);
371 #define _bfd_vms_lib_update_armap_timestamp bfd_true
373 /* Extra routines for VMS style archives. */
375 extern symindex _bfd_vms_lib_find_symbol (bfd *, const char *);
376 extern bfd *_bfd_vms_lib_get_imagelib_file (bfd *);
377 extern const bfd_target *_bfd_vms_lib_alpha_archive_p (bfd *abfd);
378 extern const bfd_target *_bfd_vms_lib_ia64_archive_p (bfd *abfd);
379 extern bfd_boolean _bfd_vms_lib_mkarchive (bfd *abfd);
381 /* Routines to use for BFD_JUMP_TABLE_SYMBOLS where there is no symbol
382 support. Use BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols). */
384 #define _bfd_nosymbols_get_symtab_upper_bound _bfd_n1
385 #define _bfd_nosymbols_canonicalize_symtab \
386 ((long (*) (bfd *, asymbol **)) _bfd_n1)
387 #define _bfd_nosymbols_make_empty_symbol _bfd_generic_make_empty_symbol
388 #define _bfd_nosymbols_print_symbol \
389 ((void (*) (bfd *, void *, asymbol *, bfd_print_symbol_type)) bfd_void)
390 #define _bfd_nosymbols_get_symbol_info \
391 ((void (*) (bfd *, asymbol *, symbol_info *)) bfd_void)
392 #define _bfd_nosymbols_bfd_is_local_label_name \
393 ((bfd_boolean (*) (bfd *, const char *)) bfd_false)
394 #define _bfd_nosymbols_bfd_is_target_special_symbol \
395 ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
396 #define _bfd_nosymbols_get_lineno \
397 ((alent *(*) (bfd *, asymbol *)) bfd_nullvoidptr)
398 #define _bfd_nosymbols_find_nearest_line \
399 ((bfd_boolean (*) (bfd *, asection *, asymbol **, bfd_vma, const char **, \
400 const char **, unsigned int *)) \
402 #define _bfd_nosymbols_find_inliner_info \
403 ((bfd_boolean (*) (bfd *, const char **, const char **, unsigned int *)) \
405 #define _bfd_nosymbols_bfd_make_debug_symbol \
406 ((asymbol *(*) (bfd *, void *, unsigned long)) bfd_nullvoidptr)
407 #define _bfd_nosymbols_read_minisymbols \
408 ((long (*) (bfd *, bfd_boolean, void **, unsigned int *)) _bfd_n1)
409 #define _bfd_nosymbols_minisymbol_to_symbol \
410 ((asymbol *(*) (bfd *, bfd_boolean, const void *, asymbol *)) \
413 /* Routines to use for BFD_JUMP_TABLE_RELOCS when there is no reloc
414 support. Use BFD_JUMP_TABLE_RELOCS (_bfd_norelocs). */
416 extern long _bfd_norelocs_get_reloc_upper_bound (bfd *, asection *);
417 extern long _bfd_norelocs_canonicalize_reloc (bfd *, asection *,
418 arelent **, asymbol **);
419 #define _bfd_norelocs_bfd_reloc_type_lookup \
420 ((reloc_howto_type *(*) (bfd *, bfd_reloc_code_real_type)) bfd_nullvoidptr)
421 #define _bfd_norelocs_bfd_reloc_name_lookup \
422 ((reloc_howto_type *(*) (bfd *, const char *)) bfd_nullvoidptr)
424 /* Routines to use for BFD_JUMP_TABLE_WRITE for targets which may not
425 be written. Use BFD_JUMP_TABLE_WRITE (_bfd_nowrite). */
427 #define _bfd_nowrite_set_arch_mach \
428 ((bfd_boolean (*) (bfd *, enum bfd_architecture, unsigned long)) \
430 #define _bfd_nowrite_set_section_contents \
431 ((bfd_boolean (*) (bfd *, asection *, const void *, file_ptr, bfd_size_type)) \
434 /* Generic routines to use for BFD_JUMP_TABLE_WRITE. Use
435 BFD_JUMP_TABLE_WRITE (_bfd_generic). */
437 #define _bfd_generic_set_arch_mach bfd_default_set_arch_mach
438 extern bfd_boolean _bfd_generic_set_section_contents
439 (bfd *, asection *, const void *, file_ptr, bfd_size_type);
441 /* Routines to use for BFD_JUMP_TABLE_LINK for targets which do not
442 support linking. Use BFD_JUMP_TABLE_LINK (_bfd_nolink). */
444 #define _bfd_nolink_sizeof_headers \
445 ((int (*) (bfd *, struct bfd_link_info *)) bfd_0)
446 #define _bfd_nolink_bfd_get_relocated_section_contents \
447 ((bfd_byte *(*) (bfd *, struct bfd_link_info *, struct bfd_link_order *, \
448 bfd_byte *, bfd_boolean, asymbol **)) \
450 #define _bfd_nolink_bfd_relax_section \
452 (bfd *, asection *, struct bfd_link_info *, bfd_boolean *)) \
454 #define _bfd_nolink_bfd_gc_sections \
455 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) \
457 #define _bfd_nolink_bfd_merge_sections \
458 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) \
460 #define _bfd_nolink_bfd_is_group_section \
461 ((bfd_boolean (*) (bfd *, const struct bfd_section *)) \
463 #define _bfd_nolink_bfd_discard_group \
464 ((bfd_boolean (*) (bfd *, struct bfd_section *)) \
466 #define _bfd_nolink_bfd_link_hash_table_create \
467 ((struct bfd_link_hash_table *(*) (bfd *)) bfd_nullvoidptr)
468 #define _bfd_nolink_bfd_link_hash_table_free \
469 ((void (*) (struct bfd_link_hash_table *)) bfd_void)
470 #define _bfd_nolink_bfd_link_add_symbols \
471 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) bfd_false)
472 #define _bfd_nolink_bfd_link_just_syms \
473 ((void (*) (asection *, struct bfd_link_info *)) bfd_void)
474 #define _bfd_nolink_bfd_copy_link_hash_symbol_type \
475 ((void (*) (bfd *, struct bfd_link_hash_entry *, \
476 struct bfd_link_hash_entry *)) bfd_void)
477 #define _bfd_nolink_bfd_final_link \
478 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) bfd_false)
479 #define _bfd_nolink_bfd_link_split_section \
480 ((bfd_boolean (*) (bfd *, struct bfd_section *)) bfd_false)
481 #define _bfd_nolink_section_already_linked \
482 ((void (*) (bfd *, struct bfd_section *, struct bfd_link_info *)) bfd_void)
483 #define _bfd_nolink_bfd_define_common_symbol \
484 ((bfd_boolean (*) (bfd *, struct bfd_link_info *, \
485 struct bfd_link_hash_entry *)) bfd_false)
487 /* Routines to use for BFD_JUMP_TABLE_DYNAMIC for targets which do not
488 have dynamic symbols or relocs. Use BFD_JUMP_TABLE_DYNAMIC
491 #define _bfd_nodynamic_get_dynamic_symtab_upper_bound _bfd_n1
492 #define _bfd_nodynamic_canonicalize_dynamic_symtab \
493 ((long (*) (bfd *, asymbol **)) _bfd_n1)
494 #define _bfd_nodynamic_get_synthetic_symtab \
495 ((long (*) (bfd *, long, asymbol **, long, asymbol **, asymbol **)) _bfd_n1)
496 #define _bfd_nodynamic_get_dynamic_reloc_upper_bound _bfd_n1
497 #define _bfd_nodynamic_canonicalize_dynamic_reloc \
498 ((long (*) (bfd *, arelent **, asymbol **)) _bfd_n1)
500 /* Generic routine to determine of the given symbol is a local
502 extern bfd_boolean bfd_generic_is_local_label_name
503 (bfd *, const char *);
505 /* Generic minisymbol routines. */
506 extern long _bfd_generic_read_minisymbols
507 (bfd *, bfd_boolean, void **, unsigned int *);
508 extern asymbol *_bfd_generic_minisymbol_to_symbol
509 (bfd *, bfd_boolean, const void *, asymbol *);
511 /* Find the nearest line using .stab/.stabstr sections. */
512 extern bfd_boolean _bfd_stab_section_find_nearest_line
513 (bfd *, asymbol **, asection *, bfd_vma, bfd_boolean *,
514 const char **, const char **, unsigned int *, void **);
516 /* Find the nearest line using DWARF 1 debugging information. */
517 extern bfd_boolean _bfd_dwarf1_find_nearest_line
518 (bfd *, asection *, asymbol **, bfd_vma, const char **,
519 const char **, unsigned int *);
521 /* Find the nearest line using DWARF 2 debugging information. */
522 extern bfd_boolean _bfd_dwarf2_find_nearest_line
523 (bfd *, asection *, asymbol **, bfd_vma, const char **, const char **,
524 unsigned int *, unsigned int, void **);
526 /* Find the line using DWARF 2 debugging information. */
527 extern bfd_boolean _bfd_dwarf2_find_line
528 (bfd *, asymbol **, asymbol *, const char **,
529 unsigned int *, unsigned int, void **);
531 bfd_boolean _bfd_generic_find_line
532 (bfd *, asymbol **, asymbol *, const char **, unsigned int *);
534 /* Find inliner info after calling bfd_find_nearest_line. */
535 extern bfd_boolean _bfd_dwarf2_find_inliner_info
536 (bfd *, const char **, const char **, unsigned int *, void **);
538 /* Create a new section entry. */
539 extern struct bfd_hash_entry *bfd_section_hash_newfunc
540 (struct bfd_hash_entry *, struct bfd_hash_table *, const char *);
542 /* A routine to create entries for a bfd_link_hash_table. */
543 extern struct bfd_hash_entry *_bfd_link_hash_newfunc
544 (struct bfd_hash_entry *entry, struct bfd_hash_table *table,
547 /* Initialize a bfd_link_hash_table. */
548 extern bfd_boolean _bfd_link_hash_table_init
549 (struct bfd_link_hash_table *, bfd *,
550 struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
551 struct bfd_hash_table *,
555 /* Generic link hash table creation routine. */
556 extern struct bfd_link_hash_table *_bfd_generic_link_hash_table_create
559 /* Generic link hash table destruction routine. */
560 extern void _bfd_generic_link_hash_table_free
561 (struct bfd_link_hash_table *);
563 /* Generic add symbol routine. */
564 extern bfd_boolean _bfd_generic_link_add_symbols
565 (bfd *, struct bfd_link_info *);
567 /* Generic add symbol routine. This version is used by targets for
568 which the linker must collect constructors and destructors by name,
569 as the collect2 program does. */
570 extern bfd_boolean _bfd_generic_link_add_symbols_collect
571 (bfd *, struct bfd_link_info *);
573 /* Generic archive add symbol routine. */
574 extern bfd_boolean _bfd_generic_link_add_archive_symbols
575 (bfd *, struct bfd_link_info *,
576 bfd_boolean (*) (bfd *, struct bfd_link_info *, bfd_boolean *));
578 /* Forward declaration to avoid prototype errors. */
579 typedef struct bfd_link_hash_entry _bfd_link_hash_entry;
581 /* Generic routine to add a single symbol. */
582 extern bfd_boolean _bfd_generic_link_add_one_symbol
583 (struct bfd_link_info *, bfd *, const char *name, flagword,
584 asection *, bfd_vma, const char *, bfd_boolean copy,
585 bfd_boolean constructor, struct bfd_link_hash_entry **);
587 /* Generic routine to mark section as supplying symbols only. */
588 extern void _bfd_generic_link_just_syms
589 (asection *, struct bfd_link_info *);
591 /* Generic routine that does nothing. */
592 extern void _bfd_generic_copy_link_hash_symbol_type
593 (bfd *, struct bfd_link_hash_entry *, struct bfd_link_hash_entry *);
595 /* Generic link routine. */
596 extern bfd_boolean _bfd_generic_final_link
597 (bfd *, struct bfd_link_info *);
599 extern bfd_boolean _bfd_generic_link_split_section
600 (bfd *, struct bfd_section *);
602 extern void _bfd_generic_section_already_linked
603 (bfd *, struct bfd_section *, struct bfd_link_info *);
605 /* Generic reloc_link_order processing routine. */
606 extern bfd_boolean _bfd_generic_reloc_link_order
607 (bfd *, struct bfd_link_info *, asection *, struct bfd_link_order *);
609 /* Default link order processing routine. */
610 extern bfd_boolean _bfd_default_link_order
611 (bfd *, struct bfd_link_info *, asection *, struct bfd_link_order *);
613 /* Count the number of reloc entries in a link order list. */
614 extern unsigned int _bfd_count_link_order_relocs
615 (struct bfd_link_order *);
617 /* Final link relocation routine. */
618 extern bfd_reloc_status_type _bfd_final_link_relocate
619 (reloc_howto_type *, bfd *, asection *, bfd_byte *,
620 bfd_vma, bfd_vma, bfd_vma);
622 /* Relocate a particular location by a howto and a value. */
623 extern bfd_reloc_status_type _bfd_relocate_contents
624 (reloc_howto_type *, bfd *, bfd_vma, bfd_byte *);
626 /* Clear a given location using a given howto. */
627 extern void _bfd_clear_contents (reloc_howto_type *howto, bfd *input_bfd,
630 /* Link stabs in sections in the first pass. */
632 extern bfd_boolean _bfd_link_section_stabs
633 (bfd *, struct stab_info *, asection *, asection *, void **,
636 /* Eliminate stabs for discarded functions and symbols. */
637 extern bfd_boolean _bfd_discard_section_stabs
638 (bfd *, asection *, void *, bfd_boolean (*) (bfd_vma, void *), void *);
640 /* Write out the .stab section when linking stabs in sections. */
642 extern bfd_boolean _bfd_write_section_stabs
643 (bfd *, struct stab_info *, asection *, void **, bfd_byte *);
645 /* Write out the .stabstr string table when linking stabs in sections. */
647 extern bfd_boolean _bfd_write_stab_strings
648 (bfd *, struct stab_info *);
650 /* Find an offset within a .stab section when linking stabs in
653 extern bfd_vma _bfd_stab_section_offset
654 (asection *, void *, bfd_vma);
656 /* Register a SEC_MERGE section as a candidate for merging. */
658 extern bfd_boolean _bfd_add_merge_section
659 (bfd *, void **, asection *, void **);
661 /* Attempt to merge SEC_MERGE sections. */
663 extern bfd_boolean _bfd_merge_sections
664 (bfd *, struct bfd_link_info *, void *, void (*) (bfd *, asection *));
666 /* Write out a merged section. */
668 extern bfd_boolean _bfd_write_merged_section
669 (bfd *, asection *, void *);
671 /* Find an offset within a modified SEC_MERGE section. */
673 extern bfd_vma _bfd_merged_section_offset
674 (bfd *, asection **, void *, bfd_vma);
676 /* Create a string table. */
677 extern struct bfd_strtab_hash *_bfd_stringtab_init
680 /* Create an XCOFF .debug section style string table. */
681 extern struct bfd_strtab_hash *_bfd_xcoff_stringtab_init
684 /* Free a string table. */
685 extern void _bfd_stringtab_free
686 (struct bfd_strtab_hash *);
688 /* Get the size of a string table. */
689 extern bfd_size_type _bfd_stringtab_size
690 (struct bfd_strtab_hash *);
692 /* Add a string to a string table. */
693 extern bfd_size_type _bfd_stringtab_add
694 (struct bfd_strtab_hash *, const char *, bfd_boolean hash, bfd_boolean copy);
696 /* Write out a string table. */
697 extern bfd_boolean _bfd_stringtab_emit
698 (bfd *, struct bfd_strtab_hash *);
700 /* Check that endianness of input and output file match. */
701 extern bfd_boolean _bfd_generic_verify_endian_match
704 /* Macros to tell if bfds are read or write enabled.
706 Note that bfds open for read may be scribbled into if the fd passed
707 to bfd_fdopenr is actually open both for read and write
708 simultaneously. However an output bfd will never be open for
709 read. Therefore sometimes you want to check bfd_read_p or
710 !bfd_read_p, and only sometimes bfd_write_p.
713 #define bfd_read_p(abfd) \
714 ((abfd)->direction == read_direction || (abfd)->direction == both_direction)
715 #define bfd_write_p(abfd) \
716 ((abfd)->direction == write_direction || (abfd)->direction == both_direction)
721 #define BFD_ASSERT(x) \
722 do { if (!(x)) bfd_assert(__FILE__,__LINE__); } while (0)
725 do { bfd_assert(__FILE__,__LINE__); } while (0)
727 extern void _bfd_abort
728 (const char *, int, const char *) ATTRIBUTE_NORETURN;
730 /* if gcc >= 2.6, we can give a function name, too */
731 #if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 6)
732 #define __PRETTY_FUNCTION__ ((char *) NULL)
736 #define abort() _bfd_abort (__FILE__, __LINE__, __PRETTY_FUNCTION__)
738 /* Manipulate a system FILE but using BFD's "file_ptr", rather than
739 the system "off_t" or "off64_t", as the offset. */
740 extern file_ptr real_ftell (FILE *file);
741 extern int real_fseek (FILE *file, file_ptr offset, int whence);
742 extern FILE *real_fopen (const char *filename, const char *modes);
744 /* List of supported target vectors, and the default vector (if
745 bfd_default_vector[0] is NULL, there is no default). */
746 extern const bfd_target * const *bfd_target_vector;
747 extern const bfd_target *bfd_default_vector[];
749 /* List of associated target vectors. */
750 extern const bfd_target * const *bfd_associated_vector;
752 /* Functions shared by the ECOFF and MIPS ELF backends, which have no
753 other common header files. */
755 #if defined(__STDC__) || defined(ALMOST_STDC)
756 struct ecoff_find_line;
759 extern bfd_boolean _bfd_ecoff_locate_line
760 (bfd *, asection *, bfd_vma, struct ecoff_debug_info * const,
761 const struct ecoff_debug_swap * const, struct ecoff_find_line *,
762 const char **, const char **, unsigned int *);
763 extern bfd_boolean _bfd_ecoff_get_accumulated_pdr
764 (void *, bfd_byte *);
765 extern bfd_boolean _bfd_ecoff_get_accumulated_sym
766 (void *, bfd_byte *);
767 extern bfd_boolean _bfd_ecoff_get_accumulated_ss
768 (void *, bfd_byte *);
770 extern bfd_vma _bfd_get_gp_value
772 extern void _bfd_set_gp_value
775 /* Function shared by the COFF and ELF SH backends, which have no
776 other common header files. */
778 #ifndef _bfd_sh_align_load_span
779 extern bfd_boolean _bfd_sh_align_load_span
780 (bfd *, asection *, bfd_byte *,
781 bfd_boolean (*) (bfd *, asection *, void *, bfd_byte *, bfd_vma),
782 void *, bfd_vma **, bfd_vma *, bfd_vma, bfd_vma, bfd_boolean *);
785 /* This is the shape of the elements inside the already_linked hash
786 table. It maps a name onto a list of already_linked elements with
789 struct bfd_section_already_linked_hash_entry
791 struct bfd_hash_entry root;
792 struct bfd_section_already_linked *entry;
795 struct bfd_section_already_linked
797 struct bfd_section_already_linked *next;
801 extern struct bfd_section_already_linked_hash_entry *
802 bfd_section_already_linked_table_lookup (const char *);
803 extern bfd_boolean bfd_section_already_linked_table_insert
804 (struct bfd_section_already_linked_hash_entry *, asection *);
805 extern void bfd_section_already_linked_table_traverse
806 (bfd_boolean (*) (struct bfd_section_already_linked_hash_entry *,
809 extern bfd_vma read_unsigned_leb128 (bfd *, bfd_byte *, unsigned int *);
810 extern bfd_signed_vma read_signed_leb128 (bfd *, bfd_byte *, unsigned int *);