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_alloc2
122 (bfd *, bfd_size_type, bfd_size_type);
123 extern void *bfd_zalloc2
124 (bfd *, bfd_size_type, bfd_size_type);
125 extern void bfd_release
128 bfd * _bfd_create_empty_archive_element_shell
130 bfd * _bfd_look_for_bfd_in_cache
132 bfd_boolean _bfd_add_bfd_to_archive_cache
133 (bfd *, file_ptr, bfd *);
134 bfd_boolean _bfd_generic_mkarchive
136 char *_bfd_append_relative_path
137 (bfd *arch, char *elt_name);
138 const bfd_target *bfd_generic_archive_p
140 bfd_boolean bfd_slurp_armap
142 bfd_boolean bfd_slurp_bsd_armap_f2
144 #define bfd_slurp_bsd_armap bfd_slurp_armap
145 #define bfd_slurp_coff_armap bfd_slurp_armap
146 bfd_boolean _bfd_slurp_extended_name_table
148 extern bfd_boolean _bfd_construct_extended_name_table
149 (bfd *, bfd_boolean, char **, bfd_size_type *);
150 bfd_boolean _bfd_write_archive_contents
152 bfd_boolean _bfd_compute_and_write_armap
153 (bfd *, unsigned int elength);
154 bfd *_bfd_get_elt_at_filepos
155 (bfd *archive, file_ptr filepos);
156 extern bfd *_bfd_generic_get_elt_at_index
162 bfd_boolean _bfd_free_cached_info
165 bfd_boolean bfd_false
169 void *bfd_nullvoidptr
182 bfd *_bfd_new_bfd_contained_in
184 const bfd_target *_bfd_dummy_target
187 void bfd_dont_truncate_arname
188 (bfd *abfd, const char *filename, char *hdr);
189 void bfd_bsd_truncate_arname
190 (bfd *abfd, const char *filename, char *hdr);
191 void bfd_gnu_truncate_arname
192 (bfd *abfd, const char *filename, char *hdr);
194 bfd_boolean bsd_write_armap
195 (bfd *arch, unsigned int elength, struct orl *map, unsigned int orl_count,
198 bfd_boolean coff_write_armap
199 (bfd *arch, unsigned int elength, struct orl *map, unsigned int orl_count,
202 extern void *_bfd_generic_read_ar_hdr
204 extern void _bfd_ar_spacepad
205 (char *, size_t, const char *, long);
207 extern void *_bfd_generic_read_ar_hdr_mag
208 (bfd *, const char *);
210 extern bfd_boolean _bfd_generic_write_ar_hdr
213 extern bfd_boolean _bfd_bsd44_write_ar_hdr
216 bfd * bfd_generic_openr_next_archived_file
217 (bfd *archive, bfd *last_file);
219 int bfd_generic_stat_arch_elt
220 (bfd *, struct stat *);
222 #define _bfd_read_ar_hdr(abfd) \
223 BFD_SEND (abfd, _bfd_read_ar_hdr_fn, (abfd))
224 #define _bfd_write_ar_hdr(archive, abfd) \
225 BFD_SEND (abfd, _bfd_write_ar_hdr_fn, (archive, abfd))
227 /* Generic routines to use for BFD_JUMP_TABLE_GENERIC. Use
228 BFD_JUMP_TABLE_GENERIC (_bfd_generic). */
230 #define _bfd_generic_close_and_cleanup bfd_true
231 #define _bfd_generic_bfd_free_cached_info bfd_true
232 extern bfd_boolean _bfd_generic_new_section_hook
234 extern bfd_boolean _bfd_generic_get_section_contents
235 (bfd *, asection *, void *, file_ptr, bfd_size_type);
236 extern bfd_boolean _bfd_generic_get_section_contents_in_window
237 (bfd *, asection *, bfd_window *, file_ptr, bfd_size_type);
239 /* Generic routines to use for BFD_JUMP_TABLE_COPY. Use
240 BFD_JUMP_TABLE_COPY (_bfd_generic). */
242 #define _bfd_generic_bfd_copy_private_bfd_data \
243 ((bfd_boolean (*) (bfd *, bfd *)) bfd_true)
244 #define _bfd_generic_bfd_merge_private_bfd_data \
245 ((bfd_boolean (*) (bfd *, bfd *)) bfd_true)
246 #define _bfd_generic_bfd_set_private_flags \
247 ((bfd_boolean (*) (bfd *, flagword)) bfd_true)
248 #define _bfd_generic_bfd_copy_private_section_data \
249 ((bfd_boolean (*) (bfd *, asection *, bfd *, asection *)) bfd_true)
250 #define _bfd_generic_bfd_copy_private_symbol_data \
251 ((bfd_boolean (*) (bfd *, asymbol *, bfd *, asymbol *)) bfd_true)
252 #define _bfd_generic_bfd_copy_private_header_data \
253 ((bfd_boolean (*) (bfd *, bfd *)) bfd_true)
254 #define _bfd_generic_bfd_print_private_bfd_data \
255 ((bfd_boolean (*) (bfd *, void *)) bfd_true)
257 extern bfd_boolean _bfd_generic_init_private_section_data
258 (bfd *, asection *, bfd *, asection *, struct bfd_link_info *);
260 /* Routines to use for BFD_JUMP_TABLE_CORE when there is no core file
261 support. Use BFD_JUMP_TABLE_CORE (_bfd_nocore). */
263 extern char *_bfd_nocore_core_file_failing_command
265 extern int _bfd_nocore_core_file_failing_signal
267 extern bfd_boolean _bfd_nocore_core_file_matches_executable_p
269 extern int _bfd_nocore_core_file_pid
272 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE when there is no archive
273 file support. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive). */
275 #define _bfd_noarchive_slurp_armap bfd_false
276 #define _bfd_noarchive_slurp_extended_name_table bfd_false
277 #define _bfd_noarchive_construct_extended_name_table \
278 ((bfd_boolean (*) (bfd *, char **, bfd_size_type *, const char **)) \
280 #define _bfd_noarchive_truncate_arname \
281 ((void (*) (bfd *, const char *, char *)) bfd_void)
282 #define _bfd_noarchive_write_armap \
283 ((bfd_boolean (*) (bfd *, unsigned int, struct orl *, unsigned int, int)) \
285 #define _bfd_noarchive_read_ar_hdr bfd_nullvoidptr
286 #define _bfd_noarchive_write_ar_hdr \
287 ((bfd_boolean (*) (bfd *, bfd *)) bfd_false)
288 #define _bfd_noarchive_openr_next_archived_file \
289 ((bfd *(*) (bfd *, bfd *)) bfd_nullvoidptr)
290 #define _bfd_noarchive_get_elt_at_index \
291 ((bfd *(*) (bfd *, symindex)) bfd_nullvoidptr)
292 #define _bfd_noarchive_generic_stat_arch_elt bfd_generic_stat_arch_elt
293 #define _bfd_noarchive_update_armap_timestamp bfd_false
295 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get BSD style
296 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_bsd). */
298 #define _bfd_archive_bsd_slurp_armap bfd_slurp_bsd_armap
299 #define _bfd_archive_bsd_slurp_extended_name_table \
300 _bfd_slurp_extended_name_table
301 extern bfd_boolean _bfd_archive_bsd_construct_extended_name_table
302 (bfd *, char **, bfd_size_type *, const char **);
303 #define _bfd_archive_bsd_truncate_arname bfd_bsd_truncate_arname
304 #define _bfd_archive_bsd_write_armap bsd_write_armap
305 #define _bfd_archive_bsd_read_ar_hdr _bfd_generic_read_ar_hdr
306 #define _bfd_archive_bsd_write_ar_hdr _bfd_generic_write_ar_hdr
307 #define _bfd_archive_bsd_openr_next_archived_file \
308 bfd_generic_openr_next_archived_file
309 #define _bfd_archive_bsd_get_elt_at_index _bfd_generic_get_elt_at_index
310 #define _bfd_archive_bsd_generic_stat_arch_elt \
311 bfd_generic_stat_arch_elt
312 extern bfd_boolean _bfd_archive_bsd_update_armap_timestamp
315 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get COFF style
316 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff). */
318 #define _bfd_archive_coff_slurp_armap bfd_slurp_coff_armap
319 #define _bfd_archive_coff_slurp_extended_name_table \
320 _bfd_slurp_extended_name_table
321 extern bfd_boolean _bfd_archive_coff_construct_extended_name_table
322 (bfd *, char **, bfd_size_type *, const char **);
323 #define _bfd_archive_coff_truncate_arname bfd_dont_truncate_arname
324 #define _bfd_archive_coff_write_armap coff_write_armap
325 #define _bfd_archive_coff_read_ar_hdr _bfd_generic_read_ar_hdr
326 #define _bfd_archive_coff_write_ar_hdr _bfd_generic_write_ar_hdr
327 #define _bfd_archive_coff_openr_next_archived_file \
328 bfd_generic_openr_next_archived_file
329 #define _bfd_archive_coff_get_elt_at_index _bfd_generic_get_elt_at_index
330 #define _bfd_archive_coff_generic_stat_arch_elt \
331 bfd_generic_stat_arch_elt
332 #define _bfd_archive_coff_update_armap_timestamp bfd_true
334 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get BSD4.4 style
335 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_bsd44). */
337 #define _bfd_archive_bsd44_slurp_armap bfd_slurp_bsd_armap
338 #define _bfd_archive_bsd44_slurp_extended_name_table \
339 _bfd_slurp_extended_name_table
340 extern bfd_boolean _bfd_archive_bsd44_construct_extended_name_table
341 (bfd *, char **, bfd_size_type *, const char **);
342 #define _bfd_archive_bsd44_truncate_arname bfd_bsd_truncate_arname
343 #define _bfd_archive_bsd44_write_armap bsd_write_armap
344 #define _bfd_archive_bsd44_read_ar_hdr _bfd_generic_read_ar_hdr
345 #define _bfd_archive_bsd44_write_ar_hdr _bfd_bsd44_write_ar_hdr
346 #define _bfd_archive_bsd44_openr_next_archived_file \
347 bfd_generic_openr_next_archived_file
348 #define _bfd_archive_bsd44_get_elt_at_index _bfd_generic_get_elt_at_index
349 #define _bfd_archive_bsd44_generic_stat_arch_elt \
350 bfd_generic_stat_arch_elt
351 #define _bfd_archive_bsd44_update_armap_timestamp \
352 _bfd_archive_bsd_update_armap_timestamp
354 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get VMS style
355 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_vms_lib). Some of them
356 are irrelevant and never called, so defined as NULL. */
358 extern bfd_boolean _bfd_vms_lib_write_archive_contents (bfd *arch);
359 #define _bfd_vms_lib_slurp_armap NULL
360 #define _bfd_vms_lib_slurp_extended_name_table NULL
361 #define _bfd_vms_lib_construct_extended_name_table NULL
362 #define _bfd_vms_lib_truncate_arname NULL
363 #define _bfd_vms_lib_write_armap NULL
364 #define _bfd_vms_lib_read_ar_hdr NULL
365 #define _bfd_vms_lib_write_ar_hdr NULL
366 extern bfd *_bfd_vms_lib_openr_next_archived_file (bfd *, bfd *);
367 extern bfd *_bfd_vms_lib_get_elt_at_index (bfd *, symindex);
368 extern int _bfd_vms_lib_generic_stat_arch_elt (bfd *, struct stat *);
369 #define _bfd_vms_lib_update_armap_timestamp bfd_true
371 /* Extra routines for VMS style archives. */
373 extern symindex _bfd_vms_lib_find_symbol (bfd *, const char *);
374 extern bfd *_bfd_vms_lib_get_imagelib_file (bfd *);
375 extern const bfd_target *_bfd_vms_lib_alpha_archive_p (bfd *abfd);
376 extern const bfd_target *_bfd_vms_lib_ia64_archive_p (bfd *abfd);
377 extern bfd_boolean _bfd_vms_lib_alpha_mkarchive (bfd *abfd);
378 extern bfd_boolean _bfd_vms_lib_ia64_mkarchive (bfd *abfd);
380 /* Routines to use for BFD_JUMP_TABLE_SYMBOLS where there is no symbol
381 support. Use BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols). */
383 #define _bfd_nosymbols_get_symtab_upper_bound _bfd_n1
384 #define _bfd_nosymbols_canonicalize_symtab \
385 ((long (*) (bfd *, asymbol **)) _bfd_n1)
386 #define _bfd_nosymbols_make_empty_symbol _bfd_generic_make_empty_symbol
387 #define _bfd_nosymbols_print_symbol \
388 ((void (*) (bfd *, void *, asymbol *, bfd_print_symbol_type)) bfd_void)
389 #define _bfd_nosymbols_get_symbol_info \
390 ((void (*) (bfd *, asymbol *, symbol_info *)) bfd_void)
391 #define _bfd_nosymbols_bfd_is_local_label_name \
392 ((bfd_boolean (*) (bfd *, const char *)) bfd_false)
393 #define _bfd_nosymbols_bfd_is_target_special_symbol \
394 ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
395 #define _bfd_nosymbols_get_lineno \
396 ((alent *(*) (bfd *, asymbol *)) bfd_nullvoidptr)
397 #define _bfd_nosymbols_find_nearest_line \
398 ((bfd_boolean (*) (bfd *, asection *, asymbol **, bfd_vma, const char **, \
399 const char **, unsigned int *)) \
401 #define _bfd_nosymbols_find_inliner_info \
402 ((bfd_boolean (*) (bfd *, const char **, const char **, unsigned int *)) \
404 #define _bfd_nosymbols_bfd_make_debug_symbol \
405 ((asymbol *(*) (bfd *, void *, unsigned long)) bfd_nullvoidptr)
406 #define _bfd_nosymbols_read_minisymbols \
407 ((long (*) (bfd *, bfd_boolean, void **, unsigned int *)) _bfd_n1)
408 #define _bfd_nosymbols_minisymbol_to_symbol \
409 ((asymbol *(*) (bfd *, bfd_boolean, const void *, asymbol *)) \
412 /* Routines to use for BFD_JUMP_TABLE_RELOCS when there is no reloc
413 support. Use BFD_JUMP_TABLE_RELOCS (_bfd_norelocs). */
415 extern long _bfd_norelocs_get_reloc_upper_bound (bfd *, asection *);
416 extern long _bfd_norelocs_canonicalize_reloc (bfd *, asection *,
417 arelent **, asymbol **);
418 #define _bfd_norelocs_bfd_reloc_type_lookup \
419 ((reloc_howto_type *(*) (bfd *, bfd_reloc_code_real_type)) bfd_nullvoidptr)
420 #define _bfd_norelocs_bfd_reloc_name_lookup \
421 ((reloc_howto_type *(*) (bfd *, const char *)) bfd_nullvoidptr)
423 /* Routines to use for BFD_JUMP_TABLE_WRITE for targets which may not
424 be written. Use BFD_JUMP_TABLE_WRITE (_bfd_nowrite). */
426 #define _bfd_nowrite_set_arch_mach \
427 ((bfd_boolean (*) (bfd *, enum bfd_architecture, unsigned long)) \
429 #define _bfd_nowrite_set_section_contents \
430 ((bfd_boolean (*) (bfd *, asection *, const void *, file_ptr, bfd_size_type)) \
433 /* Generic routines to use for BFD_JUMP_TABLE_WRITE. Use
434 BFD_JUMP_TABLE_WRITE (_bfd_generic). */
436 #define _bfd_generic_set_arch_mach bfd_default_set_arch_mach
437 extern bfd_boolean _bfd_generic_set_section_contents
438 (bfd *, asection *, const void *, file_ptr, bfd_size_type);
440 /* Routines to use for BFD_JUMP_TABLE_LINK for targets which do not
441 support linking. Use BFD_JUMP_TABLE_LINK (_bfd_nolink). */
443 #define _bfd_nolink_sizeof_headers \
444 ((int (*) (bfd *, struct bfd_link_info *)) bfd_0)
445 #define _bfd_nolink_bfd_get_relocated_section_contents \
446 ((bfd_byte *(*) (bfd *, struct bfd_link_info *, struct bfd_link_order *, \
447 bfd_byte *, bfd_boolean, asymbol **)) \
449 #define _bfd_nolink_bfd_relax_section \
451 (bfd *, asection *, struct bfd_link_info *, bfd_boolean *)) \
453 #define _bfd_nolink_bfd_gc_sections \
454 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) \
456 #define _bfd_nolink_bfd_merge_sections \
457 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) \
459 #define _bfd_nolink_bfd_is_group_section \
460 ((bfd_boolean (*) (bfd *, const struct bfd_section *)) \
462 #define _bfd_nolink_bfd_discard_group \
463 ((bfd_boolean (*) (bfd *, struct bfd_section *)) \
465 #define _bfd_nolink_bfd_link_hash_table_create \
466 ((struct bfd_link_hash_table *(*) (bfd *)) bfd_nullvoidptr)
467 #define _bfd_nolink_bfd_link_hash_table_free \
468 ((void (*) (struct bfd_link_hash_table *)) bfd_void)
469 #define _bfd_nolink_bfd_link_add_symbols \
470 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) bfd_false)
471 #define _bfd_nolink_bfd_link_just_syms \
472 ((void (*) (asection *, struct bfd_link_info *)) bfd_void)
473 #define _bfd_nolink_bfd_copy_link_hash_symbol_type \
474 ((void (*) (bfd *, struct bfd_link_hash_entry *, \
475 struct bfd_link_hash_entry *)) bfd_void)
476 #define _bfd_nolink_bfd_final_link \
477 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) bfd_false)
478 #define _bfd_nolink_bfd_link_split_section \
479 ((bfd_boolean (*) (bfd *, struct bfd_section *)) bfd_false)
480 #define _bfd_nolink_section_already_linked \
481 ((void (*) (bfd *, struct bfd_section *, struct bfd_link_info *)) bfd_void)
482 #define _bfd_nolink_bfd_define_common_symbol \
483 ((bfd_boolean (*) (bfd *, struct bfd_link_info *, \
484 struct bfd_link_hash_entry *)) bfd_false)
486 /* Routines to use for BFD_JUMP_TABLE_DYNAMIC for targets which do not
487 have dynamic symbols or relocs. Use BFD_JUMP_TABLE_DYNAMIC
490 #define _bfd_nodynamic_get_dynamic_symtab_upper_bound _bfd_n1
491 #define _bfd_nodynamic_canonicalize_dynamic_symtab \
492 ((long (*) (bfd *, asymbol **)) _bfd_n1)
493 #define _bfd_nodynamic_get_synthetic_symtab \
494 ((long (*) (bfd *, long, asymbol **, long, asymbol **, asymbol **)) _bfd_n1)
495 #define _bfd_nodynamic_get_dynamic_reloc_upper_bound _bfd_n1
496 #define _bfd_nodynamic_canonicalize_dynamic_reloc \
497 ((long (*) (bfd *, arelent **, asymbol **)) _bfd_n1)
499 /* Generic routine to determine of the given symbol is a local
501 extern bfd_boolean bfd_generic_is_local_label_name
502 (bfd *, const char *);
504 /* Generic minisymbol routines. */
505 extern long _bfd_generic_read_minisymbols
506 (bfd *, bfd_boolean, void **, unsigned int *);
507 extern asymbol *_bfd_generic_minisymbol_to_symbol
508 (bfd *, bfd_boolean, const void *, asymbol *);
510 /* Find the nearest line using .stab/.stabstr sections. */
511 extern bfd_boolean _bfd_stab_section_find_nearest_line
512 (bfd *, asymbol **, asection *, bfd_vma, bfd_boolean *,
513 const char **, const char **, unsigned int *, void **);
515 /* Find the nearest line using DWARF 1 debugging information. */
516 extern bfd_boolean _bfd_dwarf1_find_nearest_line
517 (bfd *, asection *, asymbol **, bfd_vma, const char **,
518 const char **, unsigned int *);
520 /* Find the nearest line using DWARF 2 debugging information. */
521 extern bfd_boolean _bfd_dwarf2_find_nearest_line
522 (bfd *, asection *, asymbol **, bfd_vma, const char **, const char **,
523 unsigned int *, unsigned int, void **);
525 /* Find the line using DWARF 2 debugging information. */
526 extern bfd_boolean _bfd_dwarf2_find_line
527 (bfd *, asymbol **, asymbol *, const char **,
528 unsigned int *, unsigned int, void **);
530 bfd_boolean _bfd_generic_find_line
531 (bfd *, asymbol **, asymbol *, const char **, unsigned int *);
533 /* Find inliner info after calling bfd_find_nearest_line. */
534 extern bfd_boolean _bfd_dwarf2_find_inliner_info
535 (bfd *, const char **, const char **, unsigned int *, void **);
537 /* Create a new section entry. */
538 extern struct bfd_hash_entry *bfd_section_hash_newfunc
539 (struct bfd_hash_entry *, struct bfd_hash_table *, const char *);
541 /* A routine to create entries for a bfd_link_hash_table. */
542 extern struct bfd_hash_entry *_bfd_link_hash_newfunc
543 (struct bfd_hash_entry *entry, struct bfd_hash_table *table,
546 /* Initialize a bfd_link_hash_table. */
547 extern bfd_boolean _bfd_link_hash_table_init
548 (struct bfd_link_hash_table *, bfd *,
549 struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
550 struct bfd_hash_table *,
554 /* Generic link hash table creation routine. */
555 extern struct bfd_link_hash_table *_bfd_generic_link_hash_table_create
558 /* Generic link hash table destruction routine. */
559 extern void _bfd_generic_link_hash_table_free
560 (struct bfd_link_hash_table *);
562 /* Generic add symbol routine. */
563 extern bfd_boolean _bfd_generic_link_add_symbols
564 (bfd *, struct bfd_link_info *);
566 /* Generic add symbol routine. This version is used by targets for
567 which the linker must collect constructors and destructors by name,
568 as the collect2 program does. */
569 extern bfd_boolean _bfd_generic_link_add_symbols_collect
570 (bfd *, struct bfd_link_info *);
572 /* Generic archive add symbol routine. */
573 extern bfd_boolean _bfd_generic_link_add_archive_symbols
574 (bfd *, struct bfd_link_info *,
575 bfd_boolean (*) (bfd *, struct bfd_link_info *, bfd_boolean *));
577 /* Forward declaration to avoid prototype errors. */
578 typedef struct bfd_link_hash_entry _bfd_link_hash_entry;
580 /* Generic routine to add a single symbol. */
581 extern bfd_boolean _bfd_generic_link_add_one_symbol
582 (struct bfd_link_info *, bfd *, const char *name, flagword,
583 asection *, bfd_vma, const char *, bfd_boolean copy,
584 bfd_boolean constructor, struct bfd_link_hash_entry **);
586 /* Generic routine to mark section as supplying symbols only. */
587 extern void _bfd_generic_link_just_syms
588 (asection *, struct bfd_link_info *);
590 /* Generic routine that does nothing. */
591 extern void _bfd_generic_copy_link_hash_symbol_type
592 (bfd *, struct bfd_link_hash_entry *, struct bfd_link_hash_entry *);
594 /* Generic link routine. */
595 extern bfd_boolean _bfd_generic_final_link
596 (bfd *, struct bfd_link_info *);
598 extern bfd_boolean _bfd_generic_link_split_section
599 (bfd *, struct bfd_section *);
601 extern void _bfd_generic_section_already_linked
602 (bfd *, struct bfd_section *, struct bfd_link_info *);
604 /* Generic reloc_link_order processing routine. */
605 extern bfd_boolean _bfd_generic_reloc_link_order
606 (bfd *, struct bfd_link_info *, asection *, struct bfd_link_order *);
608 /* Default link order processing routine. */
609 extern bfd_boolean _bfd_default_link_order
610 (bfd *, struct bfd_link_info *, asection *, struct bfd_link_order *);
612 /* Count the number of reloc entries in a link order list. */
613 extern unsigned int _bfd_count_link_order_relocs
614 (struct bfd_link_order *);
616 /* Final link relocation routine. */
617 extern bfd_reloc_status_type _bfd_final_link_relocate
618 (reloc_howto_type *, bfd *, asection *, bfd_byte *,
619 bfd_vma, bfd_vma, bfd_vma);
621 /* Relocate a particular location by a howto and a value. */
622 extern bfd_reloc_status_type _bfd_relocate_contents
623 (reloc_howto_type *, bfd *, bfd_vma, bfd_byte *);
625 /* Clear a given location using a given howto. */
626 extern void _bfd_clear_contents (reloc_howto_type *howto, bfd *input_bfd,
627 asection *input_section, bfd_byte *location);
629 /* Link stabs in sections in the first pass. */
631 extern bfd_boolean _bfd_link_section_stabs
632 (bfd *, struct stab_info *, asection *, asection *, void **,
635 /* Eliminate stabs for discarded functions and symbols. */
636 extern bfd_boolean _bfd_discard_section_stabs
637 (bfd *, asection *, void *, bfd_boolean (*) (bfd_vma, void *), void *);
639 /* Write out the .stab section when linking stabs in sections. */
641 extern bfd_boolean _bfd_write_section_stabs
642 (bfd *, struct stab_info *, asection *, void **, bfd_byte *);
644 /* Write out the .stabstr string table when linking stabs in sections. */
646 extern bfd_boolean _bfd_write_stab_strings
647 (bfd *, struct stab_info *);
649 /* Find an offset within a .stab section when linking stabs in
652 extern bfd_vma _bfd_stab_section_offset
653 (asection *, void *, bfd_vma);
655 /* Register a SEC_MERGE section as a candidate for merging. */
657 extern bfd_boolean _bfd_add_merge_section
658 (bfd *, void **, asection *, void **);
660 /* Attempt to merge SEC_MERGE sections. */
662 extern bfd_boolean _bfd_merge_sections
663 (bfd *, struct bfd_link_info *, void *, void (*) (bfd *, asection *));
665 /* Write out a merged section. */
667 extern bfd_boolean _bfd_write_merged_section
668 (bfd *, asection *, void *);
670 /* Find an offset within a modified SEC_MERGE section. */
672 extern bfd_vma _bfd_merged_section_offset
673 (bfd *, asection **, void *, bfd_vma);
675 /* Create a string table. */
676 extern struct bfd_strtab_hash *_bfd_stringtab_init
679 /* Create an XCOFF .debug section style string table. */
680 extern struct bfd_strtab_hash *_bfd_xcoff_stringtab_init
683 /* Free a string table. */
684 extern void _bfd_stringtab_free
685 (struct bfd_strtab_hash *);
687 /* Get the size of a string table. */
688 extern bfd_size_type _bfd_stringtab_size
689 (struct bfd_strtab_hash *);
691 /* Add a string to a string table. */
692 extern bfd_size_type _bfd_stringtab_add
693 (struct bfd_strtab_hash *, const char *, bfd_boolean hash, bfd_boolean copy);
695 /* Write out a string table. */
696 extern bfd_boolean _bfd_stringtab_emit
697 (bfd *, struct bfd_strtab_hash *);
699 /* Check that endianness of input and output file match. */
700 extern bfd_boolean _bfd_generic_verify_endian_match
703 /* Macros to tell if bfds are read or write enabled.
705 Note that bfds open for read may be scribbled into if the fd passed
706 to bfd_fdopenr is actually open both for read and write
707 simultaneously. However an output bfd will never be open for
708 read. Therefore sometimes you want to check bfd_read_p or
709 !bfd_read_p, and only sometimes bfd_write_p.
712 #define bfd_read_p(abfd) \
713 ((abfd)->direction == read_direction || (abfd)->direction == both_direction)
714 #define bfd_write_p(abfd) \
715 ((abfd)->direction == write_direction || (abfd)->direction == both_direction)
720 #define BFD_ASSERT(x) \
721 do { if (!(x)) bfd_assert(__FILE__,__LINE__); } while (0)
724 do { bfd_assert(__FILE__,__LINE__); } while (0)
726 extern void _bfd_abort
727 (const char *, int, const char *) ATTRIBUTE_NORETURN;
729 /* if gcc >= 2.6, we can give a function name, too */
730 #if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 6)
731 #define __PRETTY_FUNCTION__ ((char *) NULL)
735 #define abort() _bfd_abort (__FILE__, __LINE__, __PRETTY_FUNCTION__)
737 /* Manipulate a system FILE but using BFD's "file_ptr", rather than
738 the system "off_t" or "off64_t", as the offset. */
739 extern file_ptr real_ftell (FILE *file);
740 extern int real_fseek (FILE *file, file_ptr offset, int whence);
741 extern FILE *real_fopen (const char *filename, const char *modes);
743 /* List of supported target vectors, and the default vector (if
744 bfd_default_vector[0] is NULL, there is no default). */
745 extern const bfd_target * const *bfd_target_vector;
746 extern const bfd_target *bfd_default_vector[];
748 /* List of associated target vectors. */
749 extern const bfd_target * const *bfd_associated_vector;
751 /* Functions shared by the ECOFF and MIPS ELF backends, which have no
752 other common header files. */
754 #if defined(__STDC__) || defined(ALMOST_STDC)
755 struct ecoff_find_line;
758 extern bfd_boolean _bfd_ecoff_locate_line
759 (bfd *, asection *, bfd_vma, struct ecoff_debug_info * const,
760 const struct ecoff_debug_swap * const, struct ecoff_find_line *,
761 const char **, const char **, unsigned int *);
762 extern bfd_boolean _bfd_ecoff_get_accumulated_pdr
763 (void *, bfd_byte *);
764 extern bfd_boolean _bfd_ecoff_get_accumulated_sym
765 (void *, bfd_byte *);
766 extern bfd_boolean _bfd_ecoff_get_accumulated_ss
767 (void *, bfd_byte *);
769 extern bfd_vma _bfd_get_gp_value
771 extern void _bfd_set_gp_value
774 /* Function shared by the COFF and ELF SH backends, which have no
775 other common header files. */
777 #ifndef _bfd_sh_align_load_span
778 extern bfd_boolean _bfd_sh_align_load_span
779 (bfd *, asection *, bfd_byte *,
780 bfd_boolean (*) (bfd *, asection *, void *, bfd_byte *, bfd_vma),
781 void *, bfd_vma **, bfd_vma *, bfd_vma, bfd_vma, bfd_boolean *);
784 /* This is the shape of the elements inside the already_linked hash
785 table. It maps a name onto a list of already_linked elements with
788 struct bfd_section_already_linked_hash_entry
790 struct bfd_hash_entry root;
791 struct bfd_section_already_linked *entry;
794 struct bfd_section_already_linked
796 struct bfd_section_already_linked *next;
800 extern struct bfd_section_already_linked_hash_entry *
801 bfd_section_already_linked_table_lookup (const char *);
802 extern bfd_boolean bfd_section_already_linked_table_insert
803 (struct bfd_section_already_linked_hash_entry *, asection *);
804 extern void bfd_section_already_linked_table_traverse
805 (bfd_boolean (*) (struct bfd_section_already_linked_hash_entry *,
808 extern bfd_vma read_unsigned_leb128 (bfd *, bfd_byte *, unsigned int *);
809 extern bfd_signed_vma read_signed_leb128 (bfd *, bfd_byte *, unsigned int *);