1 /* libbfd.h -- Declarations used by bfd library *implementation*.
2 (This include file is not for users of the library.)
4 Copyright (C) 1990-2014 Free Software Foundation, Inc.
6 Written by Cygnus Support.
8 This file is part of BFD, the Binary File Descriptor library.
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 3 of the License, or
13 (at your option) any later version.
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, write to the Free Software
22 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
23 MA 02110-1301, USA. */
27 /* Align an address upward to a boundary, expressed as a number of bytes.
28 E.g. align to an 8-byte boundary with argument of 8. Take care never
29 to wrap around if the address is within boundary-1 of the end of the
31 #define BFD_ALIGN(this, boundary) \
32 ((((bfd_vma) (this) + (boundary) - 1) >= (bfd_vma) (this)) \
33 ? (((bfd_vma) (this) + ((boundary) - 1)) & ~ (bfd_vma) ((boundary)-1)) \
36 /* If you want to read and write large blocks, you might want to do it
37 in quanta of this amount */
38 #define DEFAULT_BUFFERSIZE 8192
40 /* Set a tdata field. Can't use the other macros for this, since they
41 do casts, and casting to the left of assignment isn't portable. */
42 #define set_tdata(bfd, v) ((bfd)->tdata.any = (v))
44 /* If BFD_IN_MEMORY is set for a BFD, then the iostream fields points
45 to an instance of this structure. */
51 /* Buffer holding contents of BFD. */
55 struct section_hash_entry
57 struct bfd_hash_entry root;
61 /* tdata for an archive. For an input archive, cache
62 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 */
91 char * arch_header; /* It's actually a string. */
92 bfd_size_type parsed_size; /* Octets of filesize not including ar_hdr. */
93 bfd_size_type extra_size; /* BSD4.4: extra bytes after the header. */
94 char *filename; /* Null-terminated. */
95 file_ptr origin; /* For element of a thin archive. */
96 void *parent_cache; /* Where and how to find this member. */
100 #define arelt_size(bfd) (((struct areltdata *)((bfd)->arelt_data))->parsed_size)
102 extern void *bfd_malloc
104 extern void *bfd_realloc
105 (void *, bfd_size_type);
106 extern void *bfd_realloc_or_free
107 (void *, bfd_size_type);
108 extern void *bfd_zmalloc
110 extern void *bfd_malloc2
111 (bfd_size_type, bfd_size_type);
112 extern void *bfd_realloc2
113 (void *, bfd_size_type, bfd_size_type);
114 extern void *bfd_zmalloc2
115 (bfd_size_type, bfd_size_type);
117 extern void _bfd_default_error_handler (const char *s, ...);
118 extern bfd_error_handler_type _bfd_error_handler;
119 extern bfd_assert_handler_type _bfd_assert_handler;
121 /* These routines allocate and free things on the BFD's objalloc. */
123 extern void *bfd_alloc2
124 (bfd *, bfd_size_type, bfd_size_type);
125 extern void *bfd_zalloc2
126 (bfd *, bfd_size_type, bfd_size_type);
127 extern void bfd_release
130 bfd * _bfd_create_empty_archive_element_shell
132 bfd * _bfd_look_for_bfd_in_cache
134 bfd_boolean _bfd_add_bfd_to_archive_cache
135 (bfd *, file_ptr, bfd *);
136 bfd_boolean _bfd_generic_mkarchive
138 char *_bfd_append_relative_path
139 (bfd *arch, char *elt_name);
140 const bfd_target *bfd_generic_archive_p
142 bfd_boolean bfd_slurp_armap
144 bfd_boolean bfd_slurp_bsd_armap_f2
146 #define bfd_slurp_bsd_armap bfd_slurp_armap
147 #define bfd_slurp_coff_armap bfd_slurp_armap
148 bfd_boolean _bfd_slurp_extended_name_table
150 extern bfd_boolean _bfd_construct_extended_name_table
151 (bfd *, bfd_boolean, char **, bfd_size_type *);
152 bfd_boolean _bfd_write_archive_contents
154 bfd_boolean _bfd_compute_and_write_armap
155 (bfd *, unsigned int elength);
156 bfd *_bfd_get_elt_at_filepos
157 (bfd *archive, file_ptr filepos);
158 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);
206 extern bfd_boolean _bfd_ar_sizepad
207 (char *, size_t, bfd_size_type);
209 extern void *_bfd_generic_read_ar_hdr_mag
210 (bfd *, const char *);
212 extern bfd_boolean _bfd_generic_write_ar_hdr
215 extern bfd_boolean _bfd_bsd44_write_ar_hdr
218 bfd * bfd_generic_openr_next_archived_file
219 (bfd *archive, bfd *last_file);
221 int bfd_generic_stat_arch_elt
222 (bfd *, struct stat *);
224 #define _bfd_read_ar_hdr(abfd) \
225 BFD_SEND (abfd, _bfd_read_ar_hdr_fn, (abfd))
226 #define _bfd_write_ar_hdr(archive, abfd) \
227 BFD_SEND (abfd, _bfd_write_ar_hdr_fn, (archive, abfd))
229 /* Generic routines to use for BFD_JUMP_TABLE_GENERIC. Use
230 BFD_JUMP_TABLE_GENERIC (_bfd_generic). */
232 #define _bfd_generic_close_and_cleanup _bfd_archive_close_and_cleanup
233 extern bfd_boolean _bfd_archive_close_and_cleanup
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
273 extern int _bfd_nocore_core_file_pid
276 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE when there is no archive
277 file support. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive). */
279 #define _bfd_noarchive_slurp_armap bfd_false
280 #define _bfd_noarchive_slurp_extended_name_table bfd_false
281 #define _bfd_noarchive_construct_extended_name_table \
282 ((bfd_boolean (*) (bfd *, char **, bfd_size_type *, const char **)) \
284 #define _bfd_noarchive_truncate_arname \
285 ((void (*) (bfd *, const char *, char *)) bfd_void)
286 #define _bfd_noarchive_write_armap \
287 ((bfd_boolean (*) (bfd *, unsigned int, struct orl *, unsigned int, int)) \
289 #define _bfd_noarchive_read_ar_hdr bfd_nullvoidptr
290 #define _bfd_noarchive_write_ar_hdr \
291 ((bfd_boolean (*) (bfd *, bfd *)) bfd_false)
292 #define _bfd_noarchive_openr_next_archived_file \
293 ((bfd *(*) (bfd *, bfd *)) bfd_nullvoidptr)
294 #define _bfd_noarchive_get_elt_at_index \
295 ((bfd *(*) (bfd *, symindex)) bfd_nullvoidptr)
296 #define _bfd_noarchive_generic_stat_arch_elt bfd_generic_stat_arch_elt
297 #define _bfd_noarchive_update_armap_timestamp bfd_false
299 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get BSD style
300 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_bsd). */
302 #define _bfd_archive_bsd_slurp_armap bfd_slurp_bsd_armap
303 #define _bfd_archive_bsd_slurp_extended_name_table \
304 _bfd_slurp_extended_name_table
305 extern bfd_boolean _bfd_archive_bsd_construct_extended_name_table
306 (bfd *, char **, bfd_size_type *, const char **);
307 #define _bfd_archive_bsd_truncate_arname bfd_bsd_truncate_arname
308 #define _bfd_archive_bsd_write_armap bsd_write_armap
309 #define _bfd_archive_bsd_read_ar_hdr _bfd_generic_read_ar_hdr
310 #define _bfd_archive_bsd_write_ar_hdr _bfd_generic_write_ar_hdr
311 #define _bfd_archive_bsd_openr_next_archived_file \
312 bfd_generic_openr_next_archived_file
313 #define _bfd_archive_bsd_get_elt_at_index _bfd_generic_get_elt_at_index
314 #define _bfd_archive_bsd_generic_stat_arch_elt \
315 bfd_generic_stat_arch_elt
316 extern bfd_boolean _bfd_archive_bsd_update_armap_timestamp
319 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get COFF style
320 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff). */
322 #define _bfd_archive_coff_slurp_armap bfd_slurp_coff_armap
323 #define _bfd_archive_coff_slurp_extended_name_table \
324 _bfd_slurp_extended_name_table
325 extern bfd_boolean _bfd_archive_coff_construct_extended_name_table
326 (bfd *, char **, bfd_size_type *, const char **);
327 #define _bfd_archive_coff_truncate_arname bfd_dont_truncate_arname
328 #define _bfd_archive_coff_write_armap coff_write_armap
329 #define _bfd_archive_coff_read_ar_hdr _bfd_generic_read_ar_hdr
330 #define _bfd_archive_coff_write_ar_hdr _bfd_generic_write_ar_hdr
331 #define _bfd_archive_coff_openr_next_archived_file \
332 bfd_generic_openr_next_archived_file
333 #define _bfd_archive_coff_get_elt_at_index _bfd_generic_get_elt_at_index
334 #define _bfd_archive_coff_generic_stat_arch_elt \
335 bfd_generic_stat_arch_elt
336 #define _bfd_archive_coff_update_armap_timestamp bfd_true
338 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get BSD4.4 style
339 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_bsd44). */
341 #define _bfd_archive_bsd44_slurp_armap bfd_slurp_bsd_armap
342 #define _bfd_archive_bsd44_slurp_extended_name_table \
343 _bfd_slurp_extended_name_table
344 extern bfd_boolean _bfd_archive_bsd44_construct_extended_name_table
345 (bfd *, char **, bfd_size_type *, const char **);
346 #define _bfd_archive_bsd44_truncate_arname bfd_bsd_truncate_arname
347 #define _bfd_archive_bsd44_write_armap bsd_write_armap
348 #define _bfd_archive_bsd44_read_ar_hdr _bfd_generic_read_ar_hdr
349 #define _bfd_archive_bsd44_write_ar_hdr _bfd_bsd44_write_ar_hdr
350 #define _bfd_archive_bsd44_openr_next_archived_file \
351 bfd_generic_openr_next_archived_file
352 #define _bfd_archive_bsd44_get_elt_at_index _bfd_generic_get_elt_at_index
353 #define _bfd_archive_bsd44_generic_stat_arch_elt \
354 bfd_generic_stat_arch_elt
355 #define _bfd_archive_bsd44_update_armap_timestamp \
356 _bfd_archive_bsd_update_armap_timestamp
358 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get VMS style
359 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_vms_lib). Some of them
360 are irrelevant and never called, so defined as NULL. */
362 extern bfd_boolean _bfd_vms_lib_write_archive_contents (bfd *arch);
363 #define _bfd_vms_lib_slurp_armap NULL
364 #define _bfd_vms_lib_slurp_extended_name_table NULL
365 #define _bfd_vms_lib_construct_extended_name_table NULL
366 #define _bfd_vms_lib_truncate_arname NULL
367 #define _bfd_vms_lib_write_armap NULL
368 #define _bfd_vms_lib_read_ar_hdr NULL
369 #define _bfd_vms_lib_write_ar_hdr NULL
370 extern bfd *_bfd_vms_lib_openr_next_archived_file (bfd *, bfd *);
371 extern bfd *_bfd_vms_lib_get_elt_at_index (bfd *, symindex);
372 extern int _bfd_vms_lib_generic_stat_arch_elt (bfd *, struct stat *);
373 #define _bfd_vms_lib_update_armap_timestamp bfd_true
375 /* Extra routines for VMS style archives. */
377 extern symindex _bfd_vms_lib_find_symbol (bfd *, const char *);
378 extern bfd *_bfd_vms_lib_get_imagelib_file (bfd *);
379 extern const bfd_target *_bfd_vms_lib_alpha_archive_p (bfd *abfd);
380 extern const bfd_target *_bfd_vms_lib_ia64_archive_p (bfd *abfd);
381 extern bfd_boolean _bfd_vms_lib_alpha_mkarchive (bfd *abfd);
382 extern bfd_boolean _bfd_vms_lib_ia64_mkarchive (bfd *abfd);
384 /* Routines to use for BFD_JUMP_TABLE_SYMBOLS where there is no symbol
385 support. Use BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols). */
387 #define _bfd_nosymbols_get_symtab_upper_bound _bfd_n1
388 #define _bfd_nosymbols_canonicalize_symtab \
389 ((long (*) (bfd *, asymbol **)) _bfd_n1)
390 #define _bfd_nosymbols_make_empty_symbol _bfd_generic_make_empty_symbol
391 #define _bfd_nosymbols_print_symbol \
392 ((void (*) (bfd *, void *, asymbol *, bfd_print_symbol_type)) bfd_void)
393 #define _bfd_nosymbols_get_symbol_info \
394 ((void (*) (bfd *, asymbol *, symbol_info *)) bfd_void)
395 #define _bfd_nosymbols_bfd_is_local_label_name \
396 ((bfd_boolean (*) (bfd *, const char *)) bfd_false)
397 #define _bfd_nosymbols_bfd_is_target_special_symbol \
398 ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
399 #define _bfd_nosymbols_get_lineno \
400 ((alent *(*) (bfd *, asymbol *)) bfd_nullvoidptr)
401 #define _bfd_nosymbols_find_nearest_line \
402 ((bfd_boolean (*) (bfd *, asection *, asymbol **, bfd_vma, const char **, \
403 const char **, unsigned int *)) \
405 #define _bfd_nosymbols_find_inliner_info \
406 ((bfd_boolean (*) (bfd *, const char **, const char **, unsigned int *)) \
408 #define _bfd_nosymbols_bfd_make_debug_symbol \
409 ((asymbol *(*) (bfd *, void *, unsigned long)) bfd_nullvoidptr)
410 #define _bfd_nosymbols_read_minisymbols \
411 ((long (*) (bfd *, bfd_boolean, void **, unsigned int *)) _bfd_n1)
412 #define _bfd_nosymbols_minisymbol_to_symbol \
413 ((asymbol *(*) (bfd *, bfd_boolean, const void *, asymbol *)) \
416 /* Routines to use for BFD_JUMP_TABLE_RELOCS when there is no reloc
417 support. Use BFD_JUMP_TABLE_RELOCS (_bfd_norelocs). */
419 extern long _bfd_norelocs_get_reloc_upper_bound (bfd *, asection *);
420 extern long _bfd_norelocs_canonicalize_reloc (bfd *, asection *,
421 arelent **, asymbol **);
422 #define _bfd_norelocs_bfd_reloc_type_lookup \
423 ((reloc_howto_type *(*) (bfd *, bfd_reloc_code_real_type)) bfd_nullvoidptr)
424 #define _bfd_norelocs_bfd_reloc_name_lookup \
425 ((reloc_howto_type *(*) (bfd *, const char *)) bfd_nullvoidptr)
427 /* Routines to use for BFD_JUMP_TABLE_WRITE for targets which may not
428 be written. Use BFD_JUMP_TABLE_WRITE (_bfd_nowrite). */
430 #define _bfd_nowrite_set_arch_mach \
431 ((bfd_boolean (*) (bfd *, enum bfd_architecture, unsigned long)) \
433 #define _bfd_nowrite_set_section_contents \
434 ((bfd_boolean (*) (bfd *, asection *, const void *, file_ptr, bfd_size_type)) \
437 /* Generic routines to use for BFD_JUMP_TABLE_WRITE. Use
438 BFD_JUMP_TABLE_WRITE (_bfd_generic). */
440 #define _bfd_generic_set_arch_mach bfd_default_set_arch_mach
441 extern bfd_boolean _bfd_generic_set_section_contents
442 (bfd *, asection *, const void *, file_ptr, bfd_size_type);
444 /* Routines to use for BFD_JUMP_TABLE_LINK for targets which do not
445 support linking. Use BFD_JUMP_TABLE_LINK (_bfd_nolink). */
447 #define _bfd_nolink_sizeof_headers \
448 ((int (*) (bfd *, struct bfd_link_info *)) bfd_0)
449 #define _bfd_nolink_bfd_get_relocated_section_contents \
450 ((bfd_byte *(*) (bfd *, struct bfd_link_info *, struct bfd_link_order *, \
451 bfd_byte *, bfd_boolean, asymbol **)) \
453 #define _bfd_nolink_bfd_relax_section \
455 (bfd *, asection *, struct bfd_link_info *, bfd_boolean *)) \
457 #define _bfd_nolink_bfd_gc_sections \
458 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) \
460 #define _bfd_nolink_bfd_lookup_section_flags \
461 ((bfd_boolean (*) (struct bfd_link_info *, struct flag_info *, asection *)) \
463 #define _bfd_nolink_bfd_merge_sections \
464 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) \
466 #define _bfd_nolink_bfd_is_group_section \
467 ((bfd_boolean (*) (bfd *, const struct bfd_section *)) \
469 #define _bfd_nolink_bfd_discard_group \
470 ((bfd_boolean (*) (bfd *, struct bfd_section *)) \
472 #define _bfd_nolink_bfd_link_hash_table_create \
473 ((struct bfd_link_hash_table *(*) (bfd *)) bfd_nullvoidptr)
474 #define _bfd_nolink_bfd_link_add_symbols \
475 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) bfd_false)
476 #define _bfd_nolink_bfd_link_just_syms \
477 ((void (*) (asection *, struct bfd_link_info *)) bfd_void)
478 #define _bfd_nolink_bfd_copy_link_hash_symbol_type \
479 ((void (*) (bfd *, struct bfd_link_hash_entry *, \
480 struct bfd_link_hash_entry *)) bfd_void)
481 #define _bfd_nolink_bfd_final_link \
482 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) bfd_false)
483 #define _bfd_nolink_bfd_link_split_section \
484 ((bfd_boolean (*) (bfd *, struct bfd_section *)) bfd_false)
485 #define _bfd_nolink_section_already_linked \
486 ((bfd_boolean (*) (bfd *, asection *, \
487 struct bfd_link_info *)) bfd_false)
488 #define _bfd_nolink_bfd_define_common_symbol \
489 ((bfd_boolean (*) (bfd *, struct bfd_link_info *, \
490 struct bfd_link_hash_entry *)) bfd_false)
492 /* Routines to use for BFD_JUMP_TABLE_DYNAMIC for targets which do not
493 have dynamic symbols or relocs. Use BFD_JUMP_TABLE_DYNAMIC
496 #define _bfd_nodynamic_get_dynamic_symtab_upper_bound _bfd_n1
497 #define _bfd_nodynamic_canonicalize_dynamic_symtab \
498 ((long (*) (bfd *, asymbol **)) _bfd_n1)
499 #define _bfd_nodynamic_get_synthetic_symtab \
500 ((long (*) (bfd *, long, asymbol **, long, asymbol **, asymbol **)) _bfd_n1)
501 #define _bfd_nodynamic_get_dynamic_reloc_upper_bound _bfd_n1
502 #define _bfd_nodynamic_canonicalize_dynamic_reloc \
503 ((long (*) (bfd *, arelent **, asymbol **)) _bfd_n1)
505 /* Generic routine to determine of the given symbol is a local
507 extern bfd_boolean bfd_generic_is_local_label_name
508 (bfd *, const char *);
510 /* Generic minisymbol routines. */
511 extern long _bfd_generic_read_minisymbols
512 (bfd *, bfd_boolean, void **, unsigned int *);
513 extern asymbol *_bfd_generic_minisymbol_to_symbol
514 (bfd *, bfd_boolean, const void *, asymbol *);
516 /* Find the nearest line using .stab/.stabstr sections. */
517 extern bfd_boolean _bfd_stab_section_find_nearest_line
518 (bfd *, asymbol **, asection *, bfd_vma, bfd_boolean *,
519 const char **, const char **, unsigned int *, void **);
521 /* Find the nearest line using DWARF 1 debugging information. */
522 extern bfd_boolean _bfd_dwarf1_find_nearest_line
523 (bfd *, asection *, asymbol **, bfd_vma, const char **,
524 const char **, unsigned int *);
526 struct dwarf_debug_section
528 const char *uncompressed_name;
529 const char *compressed_name;
532 /* Map of uncompressed DWARF debug section name to compressed one. It
533 is terminated by NULL uncompressed_name. */
535 extern const struct dwarf_debug_section dwarf_debug_sections[];
537 /* Find the nearest line using DWARF 2 debugging information. */
538 extern bfd_boolean _bfd_dwarf2_find_nearest_line
539 (bfd *, const struct dwarf_debug_section *, asection *, asymbol **, bfd_vma,
540 const char **, const char **, unsigned int *, unsigned int *, unsigned int,
543 /* Find the line using DWARF 2 debugging information. */
544 extern bfd_boolean _bfd_dwarf2_find_line
545 (bfd *, asymbol **, asymbol *, const char **,
546 unsigned int *, unsigned int *, unsigned int, void **);
548 bfd_boolean _bfd_generic_find_line
549 (bfd *, asymbol **, asymbol *, const char **, unsigned int *);
551 bfd_boolean _bfd_generic_find_nearest_line_discriminator
552 (bfd *, asection *, asymbol **, bfd_vma, const char **, const char **,
553 unsigned int *, unsigned int *);
555 /* Find inliner info after calling bfd_find_nearest_line. */
556 extern bfd_boolean _bfd_dwarf2_find_inliner_info
557 (bfd *, const char **, const char **, unsigned int *, void **);
559 /* Read DWARF 2 debugging information. */
560 extern bfd_boolean _bfd_dwarf2_slurp_debug_info
561 (bfd *, bfd *, const struct dwarf_debug_section *, asymbol **, void **,
564 /* Clean up the data used to handle DWARF 2 debugging information. */
565 extern void _bfd_dwarf2_cleanup_debug_info
568 /* Create a new section entry. */
569 extern struct bfd_hash_entry *bfd_section_hash_newfunc
570 (struct bfd_hash_entry *, struct bfd_hash_table *, const char *);
572 /* A routine to create entries for a bfd_link_hash_table. */
573 extern struct bfd_hash_entry *_bfd_link_hash_newfunc
574 (struct bfd_hash_entry *entry, struct bfd_hash_table *table,
577 /* Initialize a bfd_link_hash_table. */
578 extern bfd_boolean _bfd_link_hash_table_init
579 (struct bfd_link_hash_table *, bfd *,
580 struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
581 struct bfd_hash_table *,
585 /* Generic link hash table creation routine. */
586 extern struct bfd_link_hash_table *_bfd_generic_link_hash_table_create
589 /* Generic link hash table destruction routine. */
590 extern void _bfd_generic_link_hash_table_free
591 (struct bfd_link_hash_table *);
593 /* Generic add symbol routine. */
594 extern bfd_boolean _bfd_generic_link_add_symbols
595 (bfd *, struct bfd_link_info *);
597 /* Generic add symbol routine. This version is used by targets for
598 which the linker must collect constructors and destructors by name,
599 as the collect2 program does. */
600 extern bfd_boolean _bfd_generic_link_add_symbols_collect
601 (bfd *, struct bfd_link_info *);
603 /* Generic archive add symbol routine. */
604 extern bfd_boolean _bfd_generic_link_add_archive_symbols
605 (bfd *, struct bfd_link_info *,
606 bfd_boolean (*) (bfd *, struct bfd_link_info *, bfd_boolean *));
608 /* Forward declaration to avoid prototype errors. */
609 typedef struct bfd_link_hash_entry _bfd_link_hash_entry;
611 /* Generic routine to add a single symbol. */
612 extern bfd_boolean _bfd_generic_link_add_one_symbol
613 (struct bfd_link_info *, bfd *, const char *name, flagword,
614 asection *, bfd_vma, const char *, bfd_boolean copy,
615 bfd_boolean constructor, struct bfd_link_hash_entry **);
617 /* Generic routine to mark section as supplying symbols only. */
618 extern void _bfd_generic_link_just_syms
619 (asection *, struct bfd_link_info *);
621 /* Generic routine that does nothing. */
622 extern void _bfd_generic_copy_link_hash_symbol_type
623 (bfd *, struct bfd_link_hash_entry *, struct bfd_link_hash_entry *);
625 /* Generic link routine. */
626 extern bfd_boolean _bfd_generic_final_link
627 (bfd *, struct bfd_link_info *);
629 extern bfd_boolean _bfd_generic_link_split_section
630 (bfd *, struct bfd_section *);
632 extern bfd_boolean _bfd_generic_section_already_linked
633 (bfd *, asection *, struct bfd_link_info *);
635 /* Generic reloc_link_order processing routine. */
636 extern bfd_boolean _bfd_generic_reloc_link_order
637 (bfd *, struct bfd_link_info *, asection *, struct bfd_link_order *);
639 /* Default link order processing routine. */
640 extern bfd_boolean _bfd_default_link_order
641 (bfd *, struct bfd_link_info *, asection *, struct bfd_link_order *);
643 /* Count the number of reloc entries in a link order list. */
644 extern unsigned int _bfd_count_link_order_relocs
645 (struct bfd_link_order *);
647 /* Final link relocation routine. */
648 extern bfd_reloc_status_type _bfd_final_link_relocate
649 (reloc_howto_type *, bfd *, asection *, bfd_byte *,
650 bfd_vma, bfd_vma, bfd_vma);
652 /* Relocate a particular location by a howto and a value. */
653 extern bfd_reloc_status_type _bfd_relocate_contents
654 (reloc_howto_type *, bfd *, bfd_vma, bfd_byte *);
656 /* Clear a given location using a given howto. */
657 extern void _bfd_clear_contents (reloc_howto_type *howto, bfd *input_bfd,
658 asection *input_section, bfd_byte *location);
660 /* Link stabs in sections in the first pass. */
662 extern bfd_boolean _bfd_link_section_stabs
663 (bfd *, struct stab_info *, asection *, asection *, void **,
666 /* Eliminate stabs for discarded functions and symbols. */
667 extern bfd_boolean _bfd_discard_section_stabs
668 (bfd *, asection *, void *, bfd_boolean (*) (bfd_vma, void *), void *);
670 /* Write out the .stab section when linking stabs in sections. */
672 extern bfd_boolean _bfd_write_section_stabs
673 (bfd *, struct stab_info *, asection *, void **, bfd_byte *);
675 /* Write out the .stabstr string table when linking stabs in sections. */
677 extern bfd_boolean _bfd_write_stab_strings
678 (bfd *, struct stab_info *);
680 /* Find an offset within a .stab section when linking stabs in
683 extern bfd_vma _bfd_stab_section_offset
684 (asection *, void *, bfd_vma);
686 /* Register a SEC_MERGE section as a candidate for merging. */
688 extern bfd_boolean _bfd_add_merge_section
689 (bfd *, void **, asection *, void **);
691 /* Attempt to merge SEC_MERGE sections. */
693 extern bfd_boolean _bfd_merge_sections
694 (bfd *, struct bfd_link_info *, void *, void (*) (bfd *, asection *));
696 /* Write out a merged section. */
698 extern bfd_boolean _bfd_write_merged_section
699 (bfd *, asection *, void *);
701 /* Find an offset within a modified SEC_MERGE section. */
703 extern bfd_vma _bfd_merged_section_offset
704 (bfd *, asection **, void *, bfd_vma);
706 /* Tidy up when done. */
708 extern void _bfd_merge_sections_free (void *);
710 /* Create a string table. */
711 extern struct bfd_strtab_hash *_bfd_stringtab_init
714 /* Create an XCOFF .debug section style string table. */
715 extern struct bfd_strtab_hash *_bfd_xcoff_stringtab_init
718 /* Free a string table. */
719 extern void _bfd_stringtab_free
720 (struct bfd_strtab_hash *);
722 /* Get the size of a string table. */
723 extern bfd_size_type _bfd_stringtab_size
724 (struct bfd_strtab_hash *);
726 /* Add a string to a string table. */
727 extern bfd_size_type _bfd_stringtab_add
728 (struct bfd_strtab_hash *, const char *, bfd_boolean hash, bfd_boolean copy);
730 /* Write out a string table. */
731 extern bfd_boolean _bfd_stringtab_emit
732 (bfd *, struct bfd_strtab_hash *);
734 /* Check that endianness of input and output file match. */
735 extern bfd_boolean _bfd_generic_verify_endian_match
738 /* Macros to tell if bfds are read or write enabled.
740 Note that bfds open for read may be scribbled into if the fd passed
741 to bfd_fdopenr is actually open both for read and write
742 simultaneously. However an output bfd will never be open for
743 read. Therefore sometimes you want to check bfd_read_p or
744 !bfd_read_p, and only sometimes bfd_write_p.
747 #define bfd_read_p(abfd) \
748 ((abfd)->direction == read_direction || (abfd)->direction == both_direction)
749 #define bfd_write_p(abfd) \
750 ((abfd)->direction == write_direction || (abfd)->direction == both_direction)
755 #define BFD_ASSERT(x) \
756 do { if (!(x)) bfd_assert(__FILE__,__LINE__); } while (0)
759 do { bfd_assert(__FILE__,__LINE__); } while (0)
761 extern void _bfd_abort
762 (const char *, int, const char *) ATTRIBUTE_NORETURN;
764 /* if gcc >= 2.6, we can give a function name, too */
765 #if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 6)
766 #define __PRETTY_FUNCTION__ ((char *) NULL)
770 #define abort() _bfd_abort (__FILE__, __LINE__, __PRETTY_FUNCTION__)
772 /* Manipulate a system FILE but using BFD's "file_ptr", rather than
773 the system "off_t" or "off64_t", as the offset. */
774 extern file_ptr real_ftell (FILE *file);
775 extern int real_fseek (FILE *file, file_ptr offset, int whence);
776 extern FILE *real_fopen (const char *filename, const char *modes);
778 /* List of supported target vectors, and the default vector (if
779 bfd_default_vector[0] is NULL, there is no default). */
780 extern const bfd_target * const *bfd_target_vector;
781 extern const bfd_target *bfd_default_vector[];
783 /* List of associated target vectors. */
784 extern const bfd_target * const *bfd_associated_vector;
786 /* Functions shared by the ECOFF and MIPS ELF backends, which have no
787 other common header files. */
789 #if defined(__STDC__) || defined(ALMOST_STDC)
790 struct ecoff_find_line;
793 extern bfd_boolean _bfd_ecoff_locate_line
794 (bfd *, asection *, bfd_vma, struct ecoff_debug_info * const,
795 const struct ecoff_debug_swap * const, struct ecoff_find_line *,
796 const char **, const char **, unsigned int *);
797 extern bfd_boolean _bfd_ecoff_get_accumulated_pdr
798 (void *, bfd_byte *);
799 extern bfd_boolean _bfd_ecoff_get_accumulated_sym
800 (void *, bfd_byte *);
801 extern bfd_boolean _bfd_ecoff_get_accumulated_ss
802 (void *, bfd_byte *);
804 extern bfd_vma _bfd_get_gp_value
806 extern void _bfd_set_gp_value
809 /* Function shared by the COFF and ELF SH backends, which have no
810 other common header files. */
812 #ifndef _bfd_sh_align_load_span
813 extern bfd_boolean _bfd_sh_align_load_span
814 (bfd *, asection *, bfd_byte *,
815 bfd_boolean (*) (bfd *, asection *, void *, bfd_byte *, bfd_vma),
816 void *, bfd_vma **, bfd_vma *, bfd_vma, bfd_vma, bfd_boolean *);
819 /* This is the shape of the elements inside the already_linked hash
820 table. It maps a name onto a list of already_linked elements with
823 struct bfd_section_already_linked_hash_entry
825 struct bfd_hash_entry root;
826 struct bfd_section_already_linked *entry;
829 struct bfd_section_already_linked
831 struct bfd_section_already_linked *next;
835 extern struct bfd_section_already_linked_hash_entry *
836 bfd_section_already_linked_table_lookup (const char *);
837 extern bfd_boolean bfd_section_already_linked_table_insert
838 (struct bfd_section_already_linked_hash_entry *, asection *);
839 extern void bfd_section_already_linked_table_traverse
840 (bfd_boolean (*) (struct bfd_section_already_linked_hash_entry *,
843 extern bfd_vma read_unsigned_leb128 (bfd *, bfd_byte *, unsigned int *);
844 extern bfd_signed_vma read_signed_leb128 (bfd *, bfd_byte *, unsigned int *);