1 /* libbfd.h -- Declarations used by bfd library *implementation*.
2 (This include file is not for users of the library.)
4 Copyright (C) 1990-2015 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. */
31 /* Align an address upward to a boundary, expressed as a number of bytes.
32 E.g. align to an 8-byte boundary with argument of 8. Take care never
33 to wrap around if the address is within boundary-1 of the end of the
35 #define BFD_ALIGN(this, boundary) \
36 ((((bfd_vma) (this) + (boundary) - 1) >= (bfd_vma) (this)) \
37 ? (((bfd_vma) (this) + ((boundary) - 1)) & ~ (bfd_vma) ((boundary)-1)) \
40 /* If you want to read and write large blocks, you might want to do it
41 in quanta of this amount */
42 #define DEFAULT_BUFFERSIZE 8192
44 /* Set a tdata field. Can't use the other macros for this, since they
45 do casts, and casting to the left of assignment isn't portable. */
46 #define set_tdata(bfd, v) ((bfd)->tdata.any = (v))
48 /* If BFD_IN_MEMORY is set for a BFD, then the iostream fields points
49 to an instance of this structure. */
55 /* Buffer holding contents of BFD. */
59 struct section_hash_entry
61 struct bfd_hash_entry root;
65 /* tdata for an archive. For an input archive, cache
66 needs to be free()'d. For an output archive, symdefs do. */
70 file_ptr first_file_filepos;
71 /* Speed up searching the armap */
73 bfd *archive_head; /* Only interesting in output routines. */
74 carsym *symdefs; /* The symdef entries. */
75 symindex symdef_count; /* How many there are. */
76 char *extended_names; /* Clever intel extension. */
77 bfd_size_type extended_names_size; /* Size of extended names. */
78 /* When more compilers are standard C, this can be a time_t. */
79 long armap_timestamp; /* Timestamp value written into armap.
80 This is used for BSD archives to check
81 that the timestamp is recent enough
82 for the BSD linker to not complain,
83 just before we finish writing an
85 file_ptr armap_datepos; /* Position within archive to seek to
86 rewrite the date field. */
87 void *tdata; /* Backend specific information. */
90 #define bfd_ardata(bfd) ((bfd)->tdata.aout_ar_data)
92 /* Goes in bfd's arelt_data slot */
95 char * arch_header; /* It's actually a string. */
96 bfd_size_type parsed_size; /* Octets of filesize not including ar_hdr. */
97 bfd_size_type extra_size; /* BSD4.4: extra bytes after the header. */
98 char *filename; /* Null-terminated. */
99 file_ptr origin; /* For element of a thin archive. */
100 void *parent_cache; /* Where and how to find this member. */
104 #define arelt_size(bfd) (((struct areltdata *)((bfd)->arelt_data))->parsed_size)
106 extern void *bfd_malloc
108 extern void *bfd_realloc
109 (void *, bfd_size_type);
110 extern void *bfd_realloc_or_free
111 (void *, bfd_size_type);
112 extern void *bfd_zmalloc
114 extern void *bfd_malloc2
115 (bfd_size_type, bfd_size_type);
116 extern void *bfd_realloc2
117 (void *, bfd_size_type, bfd_size_type);
118 extern void *bfd_zmalloc2
119 (bfd_size_type, bfd_size_type);
121 extern void _bfd_default_error_handler (const char *s, ...);
122 extern bfd_error_handler_type _bfd_error_handler;
123 extern bfd_assert_handler_type _bfd_assert_handler;
125 /* These routines allocate and free things on the BFD's objalloc. */
127 extern void *bfd_alloc2
128 (bfd *, bfd_size_type, bfd_size_type);
129 extern void *bfd_zalloc2
130 (bfd *, bfd_size_type, bfd_size_type);
131 extern void bfd_release
134 bfd * _bfd_create_empty_archive_element_shell
136 bfd * _bfd_look_for_bfd_in_cache
138 bfd_boolean _bfd_add_bfd_to_archive_cache
139 (bfd *, file_ptr, bfd *);
140 bfd_boolean _bfd_generic_mkarchive
142 char *_bfd_append_relative_path
143 (bfd *arch, char *elt_name);
144 const bfd_target *bfd_generic_archive_p
146 bfd_boolean bfd_slurp_armap
148 bfd_boolean bfd_slurp_bsd_armap_f2
150 #define bfd_slurp_bsd_armap bfd_slurp_armap
151 #define bfd_slurp_coff_armap bfd_slurp_armap
152 bfd_boolean _bfd_slurp_extended_name_table
154 extern bfd_boolean _bfd_construct_extended_name_table
155 (bfd *, bfd_boolean, char **, bfd_size_type *);
156 bfd_boolean _bfd_write_archive_contents
158 bfd_boolean _bfd_compute_and_write_armap
159 (bfd *, unsigned int elength);
160 bfd *_bfd_get_elt_at_filepos
161 (bfd *archive, file_ptr filepos);
162 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);
210 extern bfd_boolean _bfd_ar_sizepad
211 (char *, size_t, bfd_size_type);
213 extern void *_bfd_generic_read_ar_hdr_mag
214 (bfd *, const char *);
216 extern bfd_boolean _bfd_generic_write_ar_hdr
219 extern bfd_boolean _bfd_bsd44_write_ar_hdr
222 bfd * bfd_generic_openr_next_archived_file
223 (bfd *archive, bfd *last_file);
225 int bfd_generic_stat_arch_elt
226 (bfd *, struct stat *);
228 #define _bfd_read_ar_hdr(abfd) \
229 BFD_SEND (abfd, _bfd_read_ar_hdr_fn, (abfd))
230 #define _bfd_write_ar_hdr(archive, abfd) \
231 BFD_SEND (abfd, _bfd_write_ar_hdr_fn, (archive, abfd))
233 /* Generic routines to use for BFD_JUMP_TABLE_GENERIC. Use
234 BFD_JUMP_TABLE_GENERIC (_bfd_generic). */
236 #define _bfd_generic_close_and_cleanup _bfd_archive_close_and_cleanup
237 extern bfd_boolean _bfd_archive_close_and_cleanup
239 #define _bfd_generic_bfd_free_cached_info bfd_true
240 extern bfd_boolean _bfd_generic_new_section_hook
242 extern bfd_boolean _bfd_generic_get_section_contents
243 (bfd *, asection *, void *, file_ptr, bfd_size_type);
244 extern bfd_boolean _bfd_generic_get_section_contents_in_window
245 (bfd *, asection *, bfd_window *, file_ptr, bfd_size_type);
247 /* Generic routines to use for BFD_JUMP_TABLE_COPY. Use
248 BFD_JUMP_TABLE_COPY (_bfd_generic). */
250 #define _bfd_generic_bfd_copy_private_bfd_data \
251 ((bfd_boolean (*) (bfd *, bfd *)) bfd_true)
252 #define _bfd_generic_bfd_merge_private_bfd_data \
253 ((bfd_boolean (*) (bfd *, bfd *)) bfd_true)
254 #define _bfd_generic_bfd_set_private_flags \
255 ((bfd_boolean (*) (bfd *, flagword)) bfd_true)
256 #define _bfd_generic_bfd_copy_private_section_data \
257 ((bfd_boolean (*) (bfd *, asection *, bfd *, asection *)) bfd_true)
258 #define _bfd_generic_bfd_copy_private_symbol_data \
259 ((bfd_boolean (*) (bfd *, asymbol *, bfd *, asymbol *)) bfd_true)
260 #define _bfd_generic_bfd_copy_private_header_data \
261 ((bfd_boolean (*) (bfd *, bfd *)) bfd_true)
262 #define _bfd_generic_bfd_print_private_bfd_data \
263 ((bfd_boolean (*) (bfd *, void *)) bfd_true)
265 extern bfd_boolean _bfd_generic_init_private_section_data
266 (bfd *, asection *, bfd *, asection *, struct bfd_link_info *);
268 /* Routines to use for BFD_JUMP_TABLE_CORE when there is no core file
269 support. Use BFD_JUMP_TABLE_CORE (_bfd_nocore). */
271 extern char *_bfd_nocore_core_file_failing_command
273 extern int _bfd_nocore_core_file_failing_signal
275 extern bfd_boolean _bfd_nocore_core_file_matches_executable_p
277 extern int _bfd_nocore_core_file_pid
280 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE when there is no archive
281 file support. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive). */
283 #define _bfd_noarchive_slurp_armap bfd_false
284 #define _bfd_noarchive_slurp_extended_name_table bfd_false
285 #define _bfd_noarchive_construct_extended_name_table \
286 ((bfd_boolean (*) (bfd *, char **, bfd_size_type *, const char **)) \
288 #define _bfd_noarchive_truncate_arname \
289 ((void (*) (bfd *, const char *, char *)) bfd_void)
290 #define _bfd_noarchive_write_armap \
291 ((bfd_boolean (*) (bfd *, unsigned int, struct orl *, unsigned int, int)) \
293 #define _bfd_noarchive_read_ar_hdr bfd_nullvoidptr
294 #define _bfd_noarchive_write_ar_hdr \
295 ((bfd_boolean (*) (bfd *, bfd *)) bfd_false)
296 #define _bfd_noarchive_openr_next_archived_file \
297 ((bfd *(*) (bfd *, bfd *)) bfd_nullvoidptr)
298 #define _bfd_noarchive_get_elt_at_index \
299 ((bfd *(*) (bfd *, symindex)) bfd_nullvoidptr)
300 #define _bfd_noarchive_generic_stat_arch_elt bfd_generic_stat_arch_elt
301 #define _bfd_noarchive_update_armap_timestamp bfd_false
303 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get BSD style
304 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_bsd). */
306 #define _bfd_archive_bsd_slurp_armap bfd_slurp_bsd_armap
307 #define _bfd_archive_bsd_slurp_extended_name_table \
308 _bfd_slurp_extended_name_table
309 extern bfd_boolean _bfd_archive_bsd_construct_extended_name_table
310 (bfd *, char **, bfd_size_type *, const char **);
311 #define _bfd_archive_bsd_truncate_arname bfd_bsd_truncate_arname
312 #define _bfd_archive_bsd_write_armap bsd_write_armap
313 #define _bfd_archive_bsd_read_ar_hdr _bfd_generic_read_ar_hdr
314 #define _bfd_archive_bsd_write_ar_hdr _bfd_generic_write_ar_hdr
315 #define _bfd_archive_bsd_openr_next_archived_file \
316 bfd_generic_openr_next_archived_file
317 #define _bfd_archive_bsd_get_elt_at_index _bfd_generic_get_elt_at_index
318 #define _bfd_archive_bsd_generic_stat_arch_elt \
319 bfd_generic_stat_arch_elt
320 extern bfd_boolean _bfd_archive_bsd_update_armap_timestamp
323 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get COFF style
324 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff). */
326 #define _bfd_archive_coff_slurp_armap bfd_slurp_coff_armap
327 #define _bfd_archive_coff_slurp_extended_name_table \
328 _bfd_slurp_extended_name_table
329 extern bfd_boolean _bfd_archive_coff_construct_extended_name_table
330 (bfd *, char **, bfd_size_type *, const char **);
331 #define _bfd_archive_coff_truncate_arname bfd_dont_truncate_arname
332 #define _bfd_archive_coff_write_armap coff_write_armap
333 #define _bfd_archive_coff_read_ar_hdr _bfd_generic_read_ar_hdr
334 #define _bfd_archive_coff_write_ar_hdr _bfd_generic_write_ar_hdr
335 #define _bfd_archive_coff_openr_next_archived_file \
336 bfd_generic_openr_next_archived_file
337 #define _bfd_archive_coff_get_elt_at_index _bfd_generic_get_elt_at_index
338 #define _bfd_archive_coff_generic_stat_arch_elt \
339 bfd_generic_stat_arch_elt
340 #define _bfd_archive_coff_update_armap_timestamp bfd_true
342 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get BSD4.4 style
343 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_bsd44). */
345 #define _bfd_archive_bsd44_slurp_armap bfd_slurp_bsd_armap
346 #define _bfd_archive_bsd44_slurp_extended_name_table \
347 _bfd_slurp_extended_name_table
348 extern bfd_boolean _bfd_archive_bsd44_construct_extended_name_table
349 (bfd *, char **, bfd_size_type *, const char **);
350 #define _bfd_archive_bsd44_truncate_arname bfd_bsd_truncate_arname
351 #define _bfd_archive_bsd44_write_armap bsd_write_armap
352 #define _bfd_archive_bsd44_read_ar_hdr _bfd_generic_read_ar_hdr
353 #define _bfd_archive_bsd44_write_ar_hdr _bfd_bsd44_write_ar_hdr
354 #define _bfd_archive_bsd44_openr_next_archived_file \
355 bfd_generic_openr_next_archived_file
356 #define _bfd_archive_bsd44_get_elt_at_index _bfd_generic_get_elt_at_index
357 #define _bfd_archive_bsd44_generic_stat_arch_elt \
358 bfd_generic_stat_arch_elt
359 #define _bfd_archive_bsd44_update_armap_timestamp \
360 _bfd_archive_bsd_update_armap_timestamp
362 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get VMS style
363 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_vms_lib). Some of them
364 are irrelevant and never called, so defined as NULL. */
366 extern bfd_boolean _bfd_vms_lib_write_archive_contents (bfd *arch);
367 #define _bfd_vms_lib_slurp_armap NULL
368 #define _bfd_vms_lib_slurp_extended_name_table NULL
369 #define _bfd_vms_lib_construct_extended_name_table NULL
370 #define _bfd_vms_lib_truncate_arname NULL
371 #define _bfd_vms_lib_write_armap NULL
372 #define _bfd_vms_lib_read_ar_hdr NULL
373 #define _bfd_vms_lib_write_ar_hdr NULL
374 extern bfd *_bfd_vms_lib_openr_next_archived_file (bfd *, bfd *);
375 extern bfd *_bfd_vms_lib_get_elt_at_index (bfd *, symindex);
376 extern int _bfd_vms_lib_generic_stat_arch_elt (bfd *, struct stat *);
377 #define _bfd_vms_lib_update_armap_timestamp bfd_true
379 /* Extra routines for VMS style archives. */
381 extern symindex _bfd_vms_lib_find_symbol (bfd *, const char *);
382 extern bfd *_bfd_vms_lib_get_imagelib_file (bfd *);
383 extern const bfd_target *_bfd_vms_lib_alpha_archive_p (bfd *abfd);
384 extern const bfd_target *_bfd_vms_lib_ia64_archive_p (bfd *abfd);
385 extern bfd_boolean _bfd_vms_lib_alpha_mkarchive (bfd *abfd);
386 extern bfd_boolean _bfd_vms_lib_ia64_mkarchive (bfd *abfd);
388 /* Routines to use for BFD_JUMP_TABLE_SYMBOLS where there is no symbol
389 support. Use BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols). */
391 #define _bfd_nosymbols_get_symtab_upper_bound _bfd_n1
392 #define _bfd_nosymbols_canonicalize_symtab \
393 ((long (*) (bfd *, asymbol **)) _bfd_n1)
394 #define _bfd_nosymbols_make_empty_symbol _bfd_generic_make_empty_symbol
395 #define _bfd_nosymbols_print_symbol \
396 ((void (*) (bfd *, void *, asymbol *, bfd_print_symbol_type)) bfd_void)
397 #define _bfd_nosymbols_get_symbol_info \
398 ((void (*) (bfd *, asymbol *, symbol_info *)) bfd_void)
399 #define _bfd_nosymbols_get_symbol_version_string \
400 ((const char *(*) (bfd *, asymbol *, bfd_boolean *)) bfd_nullvoidptr)
401 #define _bfd_nosymbols_bfd_is_local_label_name \
402 ((bfd_boolean (*) (bfd *, const char *)) bfd_false)
403 #define _bfd_nosymbols_bfd_is_target_special_symbol \
404 ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
405 #define _bfd_nosymbols_get_lineno \
406 ((alent *(*) (bfd *, asymbol *)) bfd_nullvoidptr)
407 #define _bfd_nosymbols_find_nearest_line \
408 ((bfd_boolean (*) (bfd *, asymbol **, asection *, bfd_vma, \
409 const char **, const char **, unsigned int *, \
412 #define _bfd_nosymbols_find_line \
413 ((bfd_boolean (*) (bfd *, asymbol **, asymbol *, \
414 const char **, unsigned int *)) \
416 #define _bfd_nosymbols_find_inliner_info \
417 ((bfd_boolean (*) (bfd *, const char **, const char **, unsigned int *)) \
419 #define _bfd_nosymbols_bfd_make_debug_symbol \
420 ((asymbol *(*) (bfd *, void *, unsigned long)) bfd_nullvoidptr)
421 #define _bfd_nosymbols_read_minisymbols \
422 ((long (*) (bfd *, bfd_boolean, void **, unsigned int *)) _bfd_n1)
423 #define _bfd_nosymbols_minisymbol_to_symbol \
424 ((asymbol *(*) (bfd *, bfd_boolean, const void *, asymbol *)) \
427 /* Routines to use for BFD_JUMP_TABLE_RELOCS when there is no reloc
428 support. Use BFD_JUMP_TABLE_RELOCS (_bfd_norelocs). */
430 extern long _bfd_norelocs_get_reloc_upper_bound (bfd *, asection *);
431 extern long _bfd_norelocs_canonicalize_reloc (bfd *, asection *,
432 arelent **, asymbol **);
433 #define _bfd_norelocs_bfd_reloc_type_lookup \
434 ((reloc_howto_type *(*) (bfd *, bfd_reloc_code_real_type)) bfd_nullvoidptr)
435 #define _bfd_norelocs_bfd_reloc_name_lookup \
436 ((reloc_howto_type *(*) (bfd *, const char *)) bfd_nullvoidptr)
438 /* Routines to use for BFD_JUMP_TABLE_WRITE for targets which may not
439 be written. Use BFD_JUMP_TABLE_WRITE (_bfd_nowrite). */
441 #define _bfd_nowrite_set_arch_mach \
442 ((bfd_boolean (*) (bfd *, enum bfd_architecture, unsigned long)) \
444 #define _bfd_nowrite_set_section_contents \
445 ((bfd_boolean (*) (bfd *, asection *, const void *, file_ptr, bfd_size_type)) \
448 /* Generic routines to use for BFD_JUMP_TABLE_WRITE. Use
449 BFD_JUMP_TABLE_WRITE (_bfd_generic). */
451 #define _bfd_generic_set_arch_mach bfd_default_set_arch_mach
452 extern bfd_boolean _bfd_generic_set_section_contents
453 (bfd *, asection *, const void *, file_ptr, bfd_size_type);
455 /* Routines to use for BFD_JUMP_TABLE_LINK for targets which do not
456 support linking. Use BFD_JUMP_TABLE_LINK (_bfd_nolink). */
458 #define _bfd_nolink_sizeof_headers \
459 ((int (*) (bfd *, struct bfd_link_info *)) bfd_0)
460 #define _bfd_nolink_bfd_get_relocated_section_contents \
461 ((bfd_byte *(*) (bfd *, struct bfd_link_info *, struct bfd_link_order *, \
462 bfd_byte *, bfd_boolean, asymbol **)) \
464 #define _bfd_nolink_bfd_relax_section \
466 (bfd *, asection *, struct bfd_link_info *, bfd_boolean *)) \
468 #define _bfd_nolink_bfd_gc_sections \
469 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) \
471 #define _bfd_nolink_bfd_lookup_section_flags \
472 ((bfd_boolean (*) (struct bfd_link_info *, struct flag_info *, asection *)) \
474 #define _bfd_nolink_bfd_merge_sections \
475 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) \
477 #define _bfd_nolink_bfd_is_group_section \
478 ((bfd_boolean (*) (bfd *, const struct bfd_section *)) \
480 #define _bfd_nolink_bfd_discard_group \
481 ((bfd_boolean (*) (bfd *, struct bfd_section *)) \
483 #define _bfd_nolink_bfd_link_hash_table_create \
484 ((struct bfd_link_hash_table *(*) (bfd *)) bfd_nullvoidptr)
485 #define _bfd_nolink_bfd_link_add_symbols \
486 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) bfd_false)
487 #define _bfd_nolink_bfd_link_just_syms \
488 ((void (*) (asection *, struct bfd_link_info *)) bfd_void)
489 #define _bfd_nolink_bfd_copy_link_hash_symbol_type \
490 ((void (*) (bfd *, struct bfd_link_hash_entry *, \
491 struct bfd_link_hash_entry *)) bfd_void)
492 #define _bfd_nolink_bfd_final_link \
493 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) bfd_false)
494 #define _bfd_nolink_bfd_link_split_section \
495 ((bfd_boolean (*) (bfd *, struct bfd_section *)) bfd_false)
496 #define _bfd_nolink_section_already_linked \
497 ((bfd_boolean (*) (bfd *, asection *, \
498 struct bfd_link_info *)) bfd_false)
499 #define _bfd_nolink_bfd_define_common_symbol \
500 ((bfd_boolean (*) (bfd *, struct bfd_link_info *, \
501 struct bfd_link_hash_entry *)) bfd_false)
503 /* Routines to use for BFD_JUMP_TABLE_DYNAMIC for targets which do not
504 have dynamic symbols or relocs. Use BFD_JUMP_TABLE_DYNAMIC
507 #define _bfd_nodynamic_get_dynamic_symtab_upper_bound _bfd_n1
508 #define _bfd_nodynamic_canonicalize_dynamic_symtab \
509 ((long (*) (bfd *, asymbol **)) _bfd_n1)
510 #define _bfd_nodynamic_get_synthetic_symtab \
511 ((long (*) (bfd *, long, asymbol **, long, asymbol **, asymbol **)) _bfd_n1)
512 #define _bfd_nodynamic_get_dynamic_reloc_upper_bound _bfd_n1
513 #define _bfd_nodynamic_canonicalize_dynamic_reloc \
514 ((long (*) (bfd *, arelent **, asymbol **)) _bfd_n1)
516 /* Generic routine to determine of the given symbol is a local
518 extern bfd_boolean bfd_generic_is_local_label_name
519 (bfd *, const char *);
521 /* Generic minisymbol routines. */
522 extern long _bfd_generic_read_minisymbols
523 (bfd *, bfd_boolean, void **, unsigned int *);
524 extern asymbol *_bfd_generic_minisymbol_to_symbol
525 (bfd *, bfd_boolean, const void *, asymbol *);
527 /* Find the nearest line using .stab/.stabstr sections. */
528 extern bfd_boolean _bfd_stab_section_find_nearest_line
529 (bfd *, asymbol **, asection *, bfd_vma, bfd_boolean *,
530 const char **, const char **, unsigned int *, void **);
532 /* Find the nearest line using DWARF 1 debugging information. */
533 extern bfd_boolean _bfd_dwarf1_find_nearest_line
534 (bfd *, asymbol **, asection *, bfd_vma,
535 const char **, const char **, unsigned int *);
537 struct dwarf_debug_section
539 const char *uncompressed_name;
540 const char *compressed_name;
543 /* Map of uncompressed DWARF debug section name to compressed one. It
544 is terminated by NULL uncompressed_name. */
546 extern const struct dwarf_debug_section dwarf_debug_sections[];
548 /* Find the nearest line using DWARF 2 debugging information. */
549 extern bfd_boolean _bfd_dwarf2_find_nearest_line
550 (bfd *, asymbol **, asymbol *, asection *, bfd_vma,
551 const char **, const char **, unsigned int *, unsigned int *,
552 const struct dwarf_debug_section *, unsigned int, void **);
554 /* Find the bias between DWARF addresses and real addresses. */
555 extern bfd_signed_vma _bfd_dwarf2_find_symbol_bias
556 (asymbol **, void **);
558 /* Find inliner info after calling bfd_find_nearest_line. */
559 extern bfd_boolean _bfd_dwarf2_find_inliner_info
560 (bfd *, const char **, const char **, unsigned int *, void **);
562 /* Read DWARF 2 debugging information. */
563 extern bfd_boolean _bfd_dwarf2_slurp_debug_info
564 (bfd *, bfd *, const struct dwarf_debug_section *, asymbol **, void **,
567 /* Clean up the data used to handle DWARF 2 debugging information. */
568 extern void _bfd_dwarf2_cleanup_debug_info
571 /* Create a new section entry. */
572 extern struct bfd_hash_entry *bfd_section_hash_newfunc
573 (struct bfd_hash_entry *, struct bfd_hash_table *, const char *);
575 /* A routine to create entries for a bfd_link_hash_table. */
576 extern struct bfd_hash_entry *_bfd_link_hash_newfunc
577 (struct bfd_hash_entry *entry, struct bfd_hash_table *table,
580 /* Initialize a bfd_link_hash_table. */
581 extern bfd_boolean _bfd_link_hash_table_init
582 (struct bfd_link_hash_table *, bfd *,
583 struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
584 struct bfd_hash_table *,
588 /* Generic link hash table creation routine. */
589 extern struct bfd_link_hash_table *_bfd_generic_link_hash_table_create
592 /* Generic link hash table destruction routine. */
593 extern void _bfd_generic_link_hash_table_free
596 /* Generic add symbol routine. */
597 extern bfd_boolean _bfd_generic_link_add_symbols
598 (bfd *, struct bfd_link_info *);
600 /* Generic add symbol routine. This version is used by targets for
601 which the linker must collect constructors and destructors by name,
602 as the collect2 program does. */
603 extern bfd_boolean _bfd_generic_link_add_symbols_collect
604 (bfd *, struct bfd_link_info *);
606 /* Generic archive add symbol routine. */
607 extern bfd_boolean _bfd_generic_link_add_archive_symbols
608 (bfd *, struct bfd_link_info *,
609 bfd_boolean (*) (bfd *, struct bfd_link_info *,
610 struct bfd_link_hash_entry *, const char *,
613 /* Forward declaration to avoid prototype errors. */
614 typedef struct bfd_link_hash_entry _bfd_link_hash_entry;
616 /* Generic routine to add a single symbol. */
617 extern bfd_boolean _bfd_generic_link_add_one_symbol
618 (struct bfd_link_info *, bfd *, const char *name, flagword,
619 asection *, bfd_vma, const char *, bfd_boolean copy,
620 bfd_boolean constructor, struct bfd_link_hash_entry **);
622 /* Generic routine to mark section as supplying symbols only. */
623 extern void _bfd_generic_link_just_syms
624 (asection *, struct bfd_link_info *);
626 /* Generic routine that does nothing. */
627 extern void _bfd_generic_copy_link_hash_symbol_type
628 (bfd *, struct bfd_link_hash_entry *, struct bfd_link_hash_entry *);
630 /* Generic link routine. */
631 extern bfd_boolean _bfd_generic_final_link
632 (bfd *, struct bfd_link_info *);
634 extern bfd_boolean _bfd_generic_link_split_section
635 (bfd *, struct bfd_section *);
637 extern bfd_boolean _bfd_generic_section_already_linked
638 (bfd *, asection *, struct bfd_link_info *);
640 /* Generic reloc_link_order processing routine. */
641 extern bfd_boolean _bfd_generic_reloc_link_order
642 (bfd *, struct bfd_link_info *, asection *, struct bfd_link_order *);
644 /* Default link order processing routine. */
645 extern bfd_boolean _bfd_default_link_order
646 (bfd *, struct bfd_link_info *, asection *, struct bfd_link_order *);
648 /* Count the number of reloc entries in a link order list. */
649 extern unsigned int _bfd_count_link_order_relocs
650 (struct bfd_link_order *);
652 /* Final link relocation routine. */
653 extern bfd_reloc_status_type _bfd_final_link_relocate
654 (reloc_howto_type *, bfd *, asection *, bfd_byte *,
655 bfd_vma, bfd_vma, bfd_vma);
657 /* Relocate a particular location by a howto and a value. */
658 extern bfd_reloc_status_type _bfd_relocate_contents
659 (reloc_howto_type *, bfd *, bfd_vma, bfd_byte *);
661 /* Clear a given location using a given howto. */
662 extern void _bfd_clear_contents (reloc_howto_type *howto, bfd *input_bfd,
663 asection *input_section, bfd_byte *location);
665 /* Link stabs in sections in the first pass. */
667 extern bfd_boolean _bfd_link_section_stabs
668 (bfd *, struct stab_info *, asection *, asection *, void **,
671 /* Eliminate stabs for discarded functions and symbols. */
672 extern bfd_boolean _bfd_discard_section_stabs
673 (bfd *, asection *, void *, bfd_boolean (*) (bfd_vma, void *), void *);
675 /* Write out the .stab section when linking stabs in sections. */
677 extern bfd_boolean _bfd_write_section_stabs
678 (bfd *, struct stab_info *, asection *, void **, bfd_byte *);
680 /* Write out the .stabstr string table when linking stabs in sections. */
682 extern bfd_boolean _bfd_write_stab_strings
683 (bfd *, struct stab_info *);
685 /* Find an offset within a .stab section when linking stabs in
688 extern bfd_vma _bfd_stab_section_offset
689 (asection *, void *, bfd_vma);
691 /* Register a SEC_MERGE section as a candidate for merging. */
693 extern bfd_boolean _bfd_add_merge_section
694 (bfd *, void **, asection *, void **);
696 /* Attempt to merge SEC_MERGE sections. */
698 extern bfd_boolean _bfd_merge_sections
699 (bfd *, struct bfd_link_info *, void *, void (*) (bfd *, asection *));
701 /* Write out a merged section. */
703 extern bfd_boolean _bfd_write_merged_section
704 (bfd *, asection *, void *);
706 /* Find an offset within a modified SEC_MERGE section. */
708 extern bfd_vma _bfd_merged_section_offset
709 (bfd *, asection **, void *, bfd_vma);
711 /* Tidy up when done. */
713 extern void _bfd_merge_sections_free (void *);
715 /* Create a string table. */
716 extern struct bfd_strtab_hash *_bfd_stringtab_init
719 /* Create an XCOFF .debug section style string table. */
720 extern struct bfd_strtab_hash *_bfd_xcoff_stringtab_init
723 /* Free a string table. */
724 extern void _bfd_stringtab_free
725 (struct bfd_strtab_hash *);
727 /* Get the size of a string table. */
728 extern bfd_size_type _bfd_stringtab_size
729 (struct bfd_strtab_hash *);
731 /* Add a string to a string table. */
732 extern bfd_size_type _bfd_stringtab_add
733 (struct bfd_strtab_hash *, const char *, bfd_boolean hash, bfd_boolean copy);
735 /* Write out a string table. */
736 extern bfd_boolean _bfd_stringtab_emit
737 (bfd *, struct bfd_strtab_hash *);
739 /* Check that endianness of input and output file match. */
740 extern bfd_boolean _bfd_generic_verify_endian_match
743 /* Macros to tell if bfds are read or write enabled.
745 Note that bfds open for read may be scribbled into if the fd passed
746 to bfd_fdopenr is actually open both for read and write
747 simultaneously. However an output bfd will never be open for
748 read. Therefore sometimes you want to check bfd_read_p or
749 !bfd_read_p, and only sometimes bfd_write_p.
752 #define bfd_read_p(abfd) \
753 ((abfd)->direction == read_direction || (abfd)->direction == both_direction)
754 #define bfd_write_p(abfd) \
755 ((abfd)->direction == write_direction || (abfd)->direction == both_direction)
760 #define BFD_ASSERT(x) \
761 do { if (!(x)) bfd_assert(__FILE__,__LINE__); } while (0)
764 do { bfd_assert(__FILE__,__LINE__); } while (0)
766 extern void _bfd_abort
767 (const char *, int, const char *) ATTRIBUTE_NORETURN;
769 /* if gcc >= 2.6, we can give a function name, too */
770 #if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 6)
771 #define __PRETTY_FUNCTION__ ((char *) NULL)
775 #define abort() _bfd_abort (__FILE__, __LINE__, __PRETTY_FUNCTION__)
777 /* Manipulate a system FILE but using BFD's "file_ptr", rather than
778 the system "off_t" or "off64_t", as the offset. */
779 extern file_ptr real_ftell (FILE *file);
780 extern int real_fseek (FILE *file, file_ptr offset, int whence);
781 extern FILE *real_fopen (const char *filename, const char *modes);
783 /* List of supported target vectors, and the default vector (if
784 bfd_default_vector[0] is NULL, there is no default). */
785 extern const bfd_target * const *bfd_target_vector;
786 extern const bfd_target *bfd_default_vector[];
788 /* List of associated target vectors. */
789 extern const bfd_target * const *bfd_associated_vector;
791 /* Functions shared by the ECOFF and MIPS ELF backends, which have no
792 other common header files. */
794 #if defined(__STDC__) || defined(ALMOST_STDC)
795 struct ecoff_find_line;
798 extern bfd_boolean _bfd_ecoff_locate_line
799 (bfd *, asection *, bfd_vma, struct ecoff_debug_info * const,
800 const struct ecoff_debug_swap * const, struct ecoff_find_line *,
801 const char **, const char **, unsigned int *);
802 extern bfd_boolean _bfd_ecoff_get_accumulated_pdr
803 (void *, bfd_byte *);
804 extern bfd_boolean _bfd_ecoff_get_accumulated_sym
805 (void *, bfd_byte *);
806 extern bfd_boolean _bfd_ecoff_get_accumulated_ss
807 (void *, bfd_byte *);
809 extern bfd_vma _bfd_get_gp_value
811 extern void _bfd_set_gp_value
814 /* Function shared by the COFF and ELF SH backends, which have no
815 other common header files. */
817 #ifndef _bfd_sh_align_load_span
818 extern bfd_boolean _bfd_sh_align_load_span
819 (bfd *, asection *, bfd_byte *,
820 bfd_boolean (*) (bfd *, asection *, void *, bfd_byte *, bfd_vma),
821 void *, bfd_vma **, bfd_vma *, bfd_vma, bfd_vma, bfd_boolean *);
824 /* This is the shape of the elements inside the already_linked hash
825 table. It maps a name onto a list of already_linked elements with
828 struct bfd_section_already_linked_hash_entry
830 struct bfd_hash_entry root;
831 struct bfd_section_already_linked *entry;
834 struct bfd_section_already_linked
836 struct bfd_section_already_linked *next;
840 extern struct bfd_section_already_linked_hash_entry *
841 bfd_section_already_linked_table_lookup (const char *);
842 extern bfd_boolean bfd_section_already_linked_table_insert
843 (struct bfd_section_already_linked_hash_entry *, asection *);
844 extern void bfd_section_already_linked_table_traverse
845 (bfd_boolean (*) (struct bfd_section_already_linked_hash_entry *,
848 extern bfd_vma read_unsigned_leb128 (bfd *, bfd_byte *, unsigned int *);
849 extern bfd_signed_vma read_signed_leb128 (bfd *, bfd_byte *, unsigned int *);
850 extern bfd_vma safe_read_leb128 (bfd *, bfd_byte *, unsigned int *,
851 bfd_boolean, const bfd_byte * const);