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
6 Free Software Foundation, Inc.
8 Written by Cygnus Support.
10 This file is part of BFD, the Binary File Descriptor library.
12 This program is free software; you can redistribute it and/or modify
13 it under the terms of the GNU General Public License as published by
14 the Free Software Foundation; either version 3 of the License, or
15 (at your option) any later version.
17 This program is distributed in the hope that it will be useful,
18 but WITHOUT ANY WARRANTY; without even the implied warranty of
19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 GNU General Public License for more details.
22 You should have received a copy of the GNU General Public License
23 along with this program; if not, write to the Free Software
24 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
25 MA 02110-1301, USA. */
29 /* Align an address upward to a boundary, expressed as a number of bytes.
30 E.g. align to an 8-byte boundary with argument of 8. Take care never
31 to wrap around if the address is within boundary-1 of the end of the
33 #define BFD_ALIGN(this, boundary) \
34 ((((bfd_vma) (this) + (boundary) - 1) >= (bfd_vma) (this)) \
35 ? (((bfd_vma) (this) + ((boundary) - 1)) & ~ (bfd_vma) ((boundary)-1)) \
38 /* If you want to read and write large blocks, you might want to do it
39 in quanta of this amount */
40 #define DEFAULT_BUFFERSIZE 8192
42 /* Set a tdata field. Can't use the other macros for this, since they
43 do casts, and casting to the left of assignment isn't portable. */
44 #define set_tdata(bfd, v) ((bfd)->tdata.any = (v))
46 /* If BFD_IN_MEMORY is set for a BFD, then the iostream fields points
47 to an instance of this structure. */
53 /* Buffer holding contents of BFD. */
57 struct section_hash_entry
59 struct bfd_hash_entry root;
63 /* tdata for an archive. For an input archive, cache
64 needs to be free()'d. For an output archive, symdefs do. */
67 file_ptr first_file_filepos;
68 /* Speed up searching the armap */
70 bfd *archive_head; /* Only interesting in output routines */
71 carsym *symdefs; /* the symdef entries */
72 symindex symdef_count; /* how many there are */
73 char *extended_names; /* clever intel extension */
74 bfd_size_type extended_names_size; /* Size of extended names */
75 /* when more compilers are standard C, this can be a time_t */
76 long armap_timestamp; /* Timestamp value written into armap.
77 This is used for BSD archives to check
78 that the timestamp is recent enough
79 for the BSD linker to not complain,
80 just before we finish writing an
82 file_ptr armap_datepos; /* Position within archive to seek to
83 rewrite the date field. */
84 void *tdata; /* Backend specific information. */
87 #define bfd_ardata(bfd) ((bfd)->tdata.aout_ar_data)
89 /* Goes in bfd's arelt_data slot */
91 char * arch_header; /* it's actually a string */
92 unsigned int parsed_size; /* octets of filesize not including ar_hdr */
93 unsigned int extra_size; /* BSD4.4: extra bytes after the header. */
94 char *filename; /* null-terminated */
95 file_ptr origin; /* for element of a thin archive */
98 #define arelt_size(bfd) (((struct areltdata *)((bfd)->arelt_data))->parsed_size)
100 extern void *bfd_malloc
102 extern void *bfd_realloc
103 (void *, bfd_size_type);
104 extern void *bfd_realloc_or_free
105 (void *, bfd_size_type);
106 extern void *bfd_zmalloc
108 extern void *bfd_malloc2
109 (bfd_size_type, bfd_size_type);
110 extern void *bfd_realloc2
111 (void *, bfd_size_type, bfd_size_type);
112 extern void *bfd_zmalloc2
113 (bfd_size_type, bfd_size_type);
115 extern void _bfd_default_error_handler (const char *s, ...);
116 extern bfd_error_handler_type _bfd_error_handler;
118 /* These routines allocate and free things on the BFD's objalloc. */
120 extern void *bfd_alloc
121 (bfd *, bfd_size_type);
122 extern void *bfd_zalloc
123 (bfd *, bfd_size_type);
124 extern void *bfd_alloc2
125 (bfd *, bfd_size_type, bfd_size_type);
126 extern void *bfd_zalloc2
127 (bfd *, bfd_size_type, bfd_size_type);
128 extern void bfd_release
131 bfd * _bfd_create_empty_archive_element_shell
133 bfd * _bfd_look_for_bfd_in_cache
135 bfd_boolean _bfd_add_bfd_to_archive_cache
136 (bfd *, file_ptr, bfd *);
137 bfd_boolean _bfd_generic_mkarchive
139 const bfd_target *bfd_generic_archive_p
141 bfd_boolean bfd_slurp_armap
143 bfd_boolean bfd_slurp_bsd_armap_f2
145 #define bfd_slurp_bsd_armap bfd_slurp_armap
146 #define bfd_slurp_coff_armap bfd_slurp_armap
147 bfd_boolean _bfd_slurp_extended_name_table
149 extern bfd_boolean _bfd_construct_extended_name_table
150 (bfd *, bfd_boolean, char **, bfd_size_type *);
151 bfd_boolean _bfd_write_archive_contents
153 bfd_boolean _bfd_compute_and_write_armap
154 (bfd *, unsigned int elength);
155 bfd *_bfd_get_elt_at_filepos
156 (bfd *archive, file_ptr filepos);
157 extern bfd *_bfd_generic_get_elt_at_index
163 bfd_boolean _bfd_free_cached_info
166 bfd_boolean bfd_false
170 void *bfd_nullvoidptr
183 bfd *_bfd_new_bfd_contained_in
185 const bfd_target *_bfd_dummy_target
188 void bfd_dont_truncate_arname
189 (bfd *abfd, const char *filename, char *hdr);
190 void bfd_bsd_truncate_arname
191 (bfd *abfd, const char *filename, char *hdr);
192 void bfd_gnu_truncate_arname
193 (bfd *abfd, const char *filename, char *hdr);
195 bfd_boolean bsd_write_armap
196 (bfd *arch, unsigned int elength, struct orl *map, unsigned int orl_count,
199 bfd_boolean coff_write_armap
200 (bfd *arch, unsigned int elength, struct orl *map, unsigned int orl_count,
203 extern void *_bfd_generic_read_ar_hdr
205 extern void _bfd_ar_spacepad
206 (char *, size_t, const char *, long);
208 extern void *_bfd_generic_read_ar_hdr_mag
209 (bfd *, const char *);
211 extern bfd_boolean _bfd_generic_write_ar_hdr
214 extern bfd_boolean _bfd_bsd44_write_ar_hdr
217 bfd * bfd_generic_openr_next_archived_file
218 (bfd *archive, bfd *last_file);
220 int bfd_generic_stat_arch_elt
221 (bfd *, struct stat *);
223 #define _bfd_read_ar_hdr(abfd) \
224 BFD_SEND (abfd, _bfd_read_ar_hdr_fn, (abfd))
225 #define _bfd_write_ar_hdr(archive, abfd) \
226 BFD_SEND (abfd, _bfd_write_ar_hdr_fn, (archive, abfd))
228 /* Generic routines to use for BFD_JUMP_TABLE_GENERIC. Use
229 BFD_JUMP_TABLE_GENERIC (_bfd_generic). */
231 #define _bfd_generic_close_and_cleanup bfd_true
232 #define _bfd_generic_bfd_free_cached_info bfd_true
233 extern bfd_boolean _bfd_generic_new_section_hook
235 extern bfd_boolean _bfd_generic_get_section_contents
236 (bfd *, asection *, void *, file_ptr, bfd_size_type);
237 extern bfd_boolean _bfd_generic_get_section_contents_in_window
238 (bfd *, asection *, bfd_window *, file_ptr, bfd_size_type);
240 /* Generic routines to use for BFD_JUMP_TABLE_COPY. Use
241 BFD_JUMP_TABLE_COPY (_bfd_generic). */
243 #define _bfd_generic_bfd_copy_private_bfd_data \
244 ((bfd_boolean (*) (bfd *, bfd *)) bfd_true)
245 #define _bfd_generic_bfd_merge_private_bfd_data \
246 ((bfd_boolean (*) (bfd *, bfd *)) bfd_true)
247 #define _bfd_generic_bfd_set_private_flags \
248 ((bfd_boolean (*) (bfd *, flagword)) bfd_true)
249 #define _bfd_generic_bfd_copy_private_section_data \
250 ((bfd_boolean (*) (bfd *, asection *, bfd *, asection *)) bfd_true)
251 #define _bfd_generic_bfd_copy_private_symbol_data \
252 ((bfd_boolean (*) (bfd *, asymbol *, bfd *, asymbol *)) bfd_true)
253 #define _bfd_generic_bfd_copy_private_header_data \
254 ((bfd_boolean (*) (bfd *, bfd *)) bfd_true)
255 #define _bfd_generic_bfd_print_private_bfd_data \
256 ((bfd_boolean (*) (bfd *, void *)) bfd_true)
258 extern bfd_boolean _bfd_generic_init_private_section_data
259 (bfd *, asection *, bfd *, asection *, struct bfd_link_info *);
261 /* Routines to use for BFD_JUMP_TABLE_CORE when there is no core file
262 support. Use BFD_JUMP_TABLE_CORE (_bfd_nocore). */
264 extern char *_bfd_nocore_core_file_failing_command
266 extern int _bfd_nocore_core_file_failing_signal
268 extern bfd_boolean _bfd_nocore_core_file_matches_executable_p
271 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE when there is no archive
272 file support. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive). */
274 #define _bfd_noarchive_slurp_armap bfd_false
275 #define _bfd_noarchive_slurp_extended_name_table bfd_false
276 #define _bfd_noarchive_construct_extended_name_table \
277 ((bfd_boolean (*) (bfd *, char **, bfd_size_type *, const char **)) \
279 #define _bfd_noarchive_truncate_arname \
280 ((void (*) (bfd *, const char *, char *)) bfd_void)
281 #define _bfd_noarchive_write_armap \
282 ((bfd_boolean (*) (bfd *, unsigned int, struct orl *, unsigned int, int)) \
284 #define _bfd_noarchive_read_ar_hdr bfd_nullvoidptr
285 #define _bfd_noarchive_write_ar_hdr \
286 ((bfd_boolean (*) (bfd *, bfd *)) bfd_false)
287 #define _bfd_noarchive_openr_next_archived_file \
288 ((bfd *(*) (bfd *, bfd *)) bfd_nullvoidptr)
289 #define _bfd_noarchive_get_elt_at_index \
290 ((bfd *(*) (bfd *, symindex)) bfd_nullvoidptr)
291 #define _bfd_noarchive_generic_stat_arch_elt bfd_generic_stat_arch_elt
292 #define _bfd_noarchive_update_armap_timestamp bfd_false
294 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get BSD style
295 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_bsd). */
297 #define _bfd_archive_bsd_slurp_armap bfd_slurp_bsd_armap
298 #define _bfd_archive_bsd_slurp_extended_name_table \
299 _bfd_slurp_extended_name_table
300 extern bfd_boolean _bfd_archive_bsd_construct_extended_name_table
301 (bfd *, char **, bfd_size_type *, const char **);
302 #define _bfd_archive_bsd_truncate_arname bfd_bsd_truncate_arname
303 #define _bfd_archive_bsd_write_armap bsd_write_armap
304 #define _bfd_archive_bsd_read_ar_hdr _bfd_generic_read_ar_hdr
305 #define _bfd_archive_bsd_write_ar_hdr _bfd_generic_write_ar_hdr
306 #define _bfd_archive_bsd_openr_next_archived_file \
307 bfd_generic_openr_next_archived_file
308 #define _bfd_archive_bsd_get_elt_at_index _bfd_generic_get_elt_at_index
309 #define _bfd_archive_bsd_generic_stat_arch_elt \
310 bfd_generic_stat_arch_elt
311 extern bfd_boolean _bfd_archive_bsd_update_armap_timestamp
314 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get COFF style
315 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff). */
317 #define _bfd_archive_coff_slurp_armap bfd_slurp_coff_armap
318 #define _bfd_archive_coff_slurp_extended_name_table \
319 _bfd_slurp_extended_name_table
320 extern bfd_boolean _bfd_archive_coff_construct_extended_name_table
321 (bfd *, char **, bfd_size_type *, const char **);
322 #define _bfd_archive_coff_truncate_arname bfd_dont_truncate_arname
323 #define _bfd_archive_coff_write_armap coff_write_armap
324 #define _bfd_archive_coff_read_ar_hdr _bfd_generic_read_ar_hdr
325 #define _bfd_archive_coff_write_ar_hdr _bfd_generic_write_ar_hdr
326 #define _bfd_archive_coff_openr_next_archived_file \
327 bfd_generic_openr_next_archived_file
328 #define _bfd_archive_coff_get_elt_at_index _bfd_generic_get_elt_at_index
329 #define _bfd_archive_coff_generic_stat_arch_elt \
330 bfd_generic_stat_arch_elt
331 #define _bfd_archive_coff_update_armap_timestamp bfd_true
333 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get BSD4.4 style
334 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_bsd44). */
336 #define _bfd_archive_bsd44_slurp_armap bfd_slurp_bsd_armap
337 #define _bfd_archive_bsd44_slurp_extended_name_table \
338 _bfd_slurp_extended_name_table
339 extern bfd_boolean _bfd_archive_bsd44_construct_extended_name_table
340 (bfd *, char **, bfd_size_type *, const char **);
341 #define _bfd_archive_bsd44_truncate_arname bfd_bsd_truncate_arname
342 #define _bfd_archive_bsd44_write_armap bsd_write_armap
343 #define _bfd_archive_bsd44_read_ar_hdr _bfd_generic_read_ar_hdr
344 #define _bfd_archive_bsd44_write_ar_hdr _bfd_bsd44_write_ar_hdr
345 #define _bfd_archive_bsd44_openr_next_archived_file \
346 bfd_generic_openr_next_archived_file
347 #define _bfd_archive_bsd44_get_elt_at_index _bfd_generic_get_elt_at_index
348 #define _bfd_archive_bsd44_generic_stat_arch_elt \
349 bfd_generic_stat_arch_elt
350 #define _bfd_archive_bsd44_update_armap_timestamp \
351 _bfd_archive_bsd_update_armap_timestamp
353 /* Routines to use for BFD_JUMP_TABLE_SYMBOLS where there is no symbol
354 support. Use BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols). */
356 #define _bfd_nosymbols_get_symtab_upper_bound _bfd_n1
357 #define _bfd_nosymbols_canonicalize_symtab \
358 ((long (*) (bfd *, asymbol **)) _bfd_n1)
359 #define _bfd_nosymbols_make_empty_symbol _bfd_generic_make_empty_symbol
360 #define _bfd_nosymbols_print_symbol \
361 ((void (*) (bfd *, void *, asymbol *, bfd_print_symbol_type)) bfd_void)
362 #define _bfd_nosymbols_get_symbol_info \
363 ((void (*) (bfd *, asymbol *, symbol_info *)) bfd_void)
364 #define _bfd_nosymbols_bfd_is_local_label_name \
365 ((bfd_boolean (*) (bfd *, const char *)) bfd_false)
366 #define _bfd_nosymbols_bfd_is_target_special_symbol \
367 ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
368 #define _bfd_nosymbols_get_lineno \
369 ((alent *(*) (bfd *, asymbol *)) bfd_nullvoidptr)
370 #define _bfd_nosymbols_find_nearest_line \
371 ((bfd_boolean (*) (bfd *, asection *, asymbol **, bfd_vma, const char **, \
372 const char **, unsigned int *)) \
374 #define _bfd_nosymbols_find_inliner_info \
375 ((bfd_boolean (*) (bfd *, const char **, const char **, unsigned int *)) \
377 #define _bfd_nosymbols_bfd_make_debug_symbol \
378 ((asymbol *(*) (bfd *, void *, unsigned long)) bfd_nullvoidptr)
379 #define _bfd_nosymbols_read_minisymbols \
380 ((long (*) (bfd *, bfd_boolean, void **, unsigned int *)) _bfd_n1)
381 #define _bfd_nosymbols_minisymbol_to_symbol \
382 ((asymbol *(*) (bfd *, bfd_boolean, const void *, asymbol *)) \
385 /* Routines to use for BFD_JUMP_TABLE_RELOCS when there is no reloc
386 support. Use BFD_JUMP_TABLE_RELOCS (_bfd_norelocs). */
388 extern long _bfd_norelocs_get_reloc_upper_bound (bfd *, asection *);
389 extern long _bfd_norelocs_canonicalize_reloc (bfd *, asection *,
390 arelent **, asymbol **);
391 #define _bfd_norelocs_bfd_reloc_type_lookup \
392 ((reloc_howto_type *(*) (bfd *, bfd_reloc_code_real_type)) bfd_nullvoidptr)
393 #define _bfd_norelocs_bfd_reloc_name_lookup \
394 ((reloc_howto_type *(*) (bfd *, const char *)) bfd_nullvoidptr)
396 /* Routines to use for BFD_JUMP_TABLE_WRITE for targets which may not
397 be written. Use BFD_JUMP_TABLE_WRITE (_bfd_nowrite). */
399 #define _bfd_nowrite_set_arch_mach \
400 ((bfd_boolean (*) (bfd *, enum bfd_architecture, unsigned long)) \
402 #define _bfd_nowrite_set_section_contents \
403 ((bfd_boolean (*) (bfd *, asection *, const void *, file_ptr, bfd_size_type)) \
406 /* Generic routines to use for BFD_JUMP_TABLE_WRITE. Use
407 BFD_JUMP_TABLE_WRITE (_bfd_generic). */
409 #define _bfd_generic_set_arch_mach bfd_default_set_arch_mach
410 extern bfd_boolean _bfd_generic_set_section_contents
411 (bfd *, asection *, const void *, file_ptr, bfd_size_type);
413 /* Routines to use for BFD_JUMP_TABLE_LINK for targets which do not
414 support linking. Use BFD_JUMP_TABLE_LINK (_bfd_nolink). */
416 #define _bfd_nolink_sizeof_headers \
417 ((int (*) (bfd *, struct bfd_link_info *)) bfd_0)
418 #define _bfd_nolink_bfd_get_relocated_section_contents \
419 ((bfd_byte *(*) (bfd *, struct bfd_link_info *, struct bfd_link_order *, \
420 bfd_byte *, bfd_boolean, asymbol **)) \
422 #define _bfd_nolink_bfd_relax_section \
424 (bfd *, asection *, struct bfd_link_info *, bfd_boolean *)) \
426 #define _bfd_nolink_bfd_gc_sections \
427 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) \
429 #define _bfd_nolink_bfd_merge_sections \
430 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) \
432 #define _bfd_nolink_bfd_is_group_section \
433 ((bfd_boolean (*) (bfd *, const struct bfd_section *)) \
435 #define _bfd_nolink_bfd_discard_group \
436 ((bfd_boolean (*) (bfd *, struct bfd_section *)) \
438 #define _bfd_nolink_bfd_link_hash_table_create \
439 ((struct bfd_link_hash_table *(*) (bfd *)) bfd_nullvoidptr)
440 #define _bfd_nolink_bfd_link_hash_table_free \
441 ((void (*) (struct bfd_link_hash_table *)) bfd_void)
442 #define _bfd_nolink_bfd_link_add_symbols \
443 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) bfd_false)
444 #define _bfd_nolink_bfd_link_just_syms \
445 ((void (*) (asection *, struct bfd_link_info *)) bfd_void)
446 #define _bfd_nolink_bfd_copy_link_hash_symbol_type \
447 ((void (*) (bfd *, struct bfd_link_hash_entry *, \
448 struct bfd_link_hash_entry *)) bfd_void)
449 #define _bfd_nolink_bfd_final_link \
450 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) bfd_false)
451 #define _bfd_nolink_bfd_link_split_section \
452 ((bfd_boolean (*) (bfd *, struct bfd_section *)) bfd_false)
453 #define _bfd_nolink_section_already_linked \
454 ((void (*) (bfd *, struct bfd_section *, struct bfd_link_info *)) bfd_void)
455 #define _bfd_nolink_bfd_define_common_symbol \
456 ((bfd_boolean (*) (bfd *, struct bfd_link_info *, \
457 struct bfd_link_hash_entry *)) bfd_false)
459 /* Routines to use for BFD_JUMP_TABLE_DYNAMIC for targets which do not
460 have dynamic symbols or relocs. Use BFD_JUMP_TABLE_DYNAMIC
463 #define _bfd_nodynamic_get_dynamic_symtab_upper_bound _bfd_n1
464 #define _bfd_nodynamic_canonicalize_dynamic_symtab \
465 ((long (*) (bfd *, asymbol **)) _bfd_n1)
466 #define _bfd_nodynamic_get_synthetic_symtab \
467 ((long (*) (bfd *, long, asymbol **, long, asymbol **, asymbol **)) _bfd_n1)
468 #define _bfd_nodynamic_get_dynamic_reloc_upper_bound _bfd_n1
469 #define _bfd_nodynamic_canonicalize_dynamic_reloc \
470 ((long (*) (bfd *, arelent **, asymbol **)) _bfd_n1)
472 /* Generic routine to determine of the given symbol is a local
474 extern bfd_boolean bfd_generic_is_local_label_name
475 (bfd *, const char *);
477 /* Generic minisymbol routines. */
478 extern long _bfd_generic_read_minisymbols
479 (bfd *, bfd_boolean, void **, unsigned int *);
480 extern asymbol *_bfd_generic_minisymbol_to_symbol
481 (bfd *, bfd_boolean, const void *, asymbol *);
483 /* Find the nearest line using .stab/.stabstr sections. */
484 extern bfd_boolean _bfd_stab_section_find_nearest_line
485 (bfd *, asymbol **, asection *, bfd_vma, bfd_boolean *,
486 const char **, const char **, unsigned int *, void **);
488 /* Find the nearest line using DWARF 1 debugging information. */
489 extern bfd_boolean _bfd_dwarf1_find_nearest_line
490 (bfd *, asection *, asymbol **, bfd_vma, const char **,
491 const char **, unsigned int *);
493 /* Find the nearest line using DWARF 2 debugging information. */
494 extern bfd_boolean _bfd_dwarf2_find_nearest_line
495 (bfd *, asection *, asymbol **, bfd_vma, const char **, const char **,
496 unsigned int *, unsigned int, void **);
498 /* Find the line using DWARF 2 debugging information. */
499 extern bfd_boolean _bfd_dwarf2_find_line
500 (bfd *, asymbol **, asymbol *, const char **,
501 unsigned int *, unsigned int, void **);
503 bfd_boolean _bfd_generic_find_line
504 (bfd *, asymbol **, asymbol *, const char **, unsigned int *);
506 /* Find inliner info after calling bfd_find_nearest_line. */
507 extern bfd_boolean _bfd_dwarf2_find_inliner_info
508 (bfd *, const char **, const char **, unsigned int *, void **);
510 /* Create a new section entry. */
511 extern struct bfd_hash_entry *bfd_section_hash_newfunc
512 (struct bfd_hash_entry *, struct bfd_hash_table *, const char *);
514 /* A routine to create entries for a bfd_link_hash_table. */
515 extern struct bfd_hash_entry *_bfd_link_hash_newfunc
516 (struct bfd_hash_entry *entry, struct bfd_hash_table *table,
519 /* Initialize a bfd_link_hash_table. */
520 extern bfd_boolean _bfd_link_hash_table_init
521 (struct bfd_link_hash_table *, bfd *,
522 struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
523 struct bfd_hash_table *,
527 /* Generic link hash table creation routine. */
528 extern struct bfd_link_hash_table *_bfd_generic_link_hash_table_create
531 /* Generic link hash table destruction routine. */
532 extern void _bfd_generic_link_hash_table_free
533 (struct bfd_link_hash_table *);
535 /* Generic add symbol routine. */
536 extern bfd_boolean _bfd_generic_link_add_symbols
537 (bfd *, struct bfd_link_info *);
539 /* Generic add symbol routine. This version is used by targets for
540 which the linker must collect constructors and destructors by name,
541 as the collect2 program does. */
542 extern bfd_boolean _bfd_generic_link_add_symbols_collect
543 (bfd *, struct bfd_link_info *);
545 /* Generic archive add symbol routine. */
546 extern bfd_boolean _bfd_generic_link_add_archive_symbols
547 (bfd *, struct bfd_link_info *,
548 bfd_boolean (*) (bfd *, struct bfd_link_info *, bfd_boolean *));
550 /* Forward declaration to avoid prototype errors. */
551 typedef struct bfd_link_hash_entry _bfd_link_hash_entry;
553 /* Generic routine to add a single symbol. */
554 extern bfd_boolean _bfd_generic_link_add_one_symbol
555 (struct bfd_link_info *, bfd *, const char *name, flagword,
556 asection *, bfd_vma, const char *, bfd_boolean copy,
557 bfd_boolean constructor, struct bfd_link_hash_entry **);
559 /* Generic routine to mark section as supplying symbols only. */
560 extern void _bfd_generic_link_just_syms
561 (asection *, struct bfd_link_info *);
563 /* Generic routine that does nothing. */
564 extern void _bfd_generic_copy_link_hash_symbol_type
565 (bfd *, struct bfd_link_hash_entry *, struct bfd_link_hash_entry *);
567 /* Generic link routine. */
568 extern bfd_boolean _bfd_generic_final_link
569 (bfd *, struct bfd_link_info *);
571 extern bfd_boolean _bfd_generic_link_split_section
572 (bfd *, struct bfd_section *);
574 extern void _bfd_generic_section_already_linked
575 (bfd *, struct bfd_section *, struct bfd_link_info *);
577 /* Generic reloc_link_order processing routine. */
578 extern bfd_boolean _bfd_generic_reloc_link_order
579 (bfd *, struct bfd_link_info *, asection *, struct bfd_link_order *);
581 /* Default link order processing routine. */
582 extern bfd_boolean _bfd_default_link_order
583 (bfd *, struct bfd_link_info *, asection *, struct bfd_link_order *);
585 /* Count the number of reloc entries in a link order list. */
586 extern unsigned int _bfd_count_link_order_relocs
587 (struct bfd_link_order *);
589 /* Final link relocation routine. */
590 extern bfd_reloc_status_type _bfd_final_link_relocate
591 (reloc_howto_type *, bfd *, asection *, bfd_byte *,
592 bfd_vma, bfd_vma, bfd_vma);
594 /* Relocate a particular location by a howto and a value. */
595 extern bfd_reloc_status_type _bfd_relocate_contents
596 (reloc_howto_type *, bfd *, bfd_vma, bfd_byte *);
598 /* Clear a given location using a given howto. */
599 extern void _bfd_clear_contents (reloc_howto_type *howto, bfd *input_bfd,
602 /* Link stabs in sections in the first pass. */
604 extern bfd_boolean _bfd_link_section_stabs
605 (bfd *, struct stab_info *, asection *, asection *, void **,
608 /* Eliminate stabs for discarded functions and symbols. */
609 extern bfd_boolean _bfd_discard_section_stabs
610 (bfd *, asection *, void *, bfd_boolean (*) (bfd_vma, void *), void *);
612 /* Write out the .stab section when linking stabs in sections. */
614 extern bfd_boolean _bfd_write_section_stabs
615 (bfd *, struct stab_info *, asection *, void **, bfd_byte *);
617 /* Write out the .stabstr string table when linking stabs in sections. */
619 extern bfd_boolean _bfd_write_stab_strings
620 (bfd *, struct stab_info *);
622 /* Find an offset within a .stab section when linking stabs in
625 extern bfd_vma _bfd_stab_section_offset
626 (asection *, void *, bfd_vma);
628 /* Register a SEC_MERGE section as a candidate for merging. */
630 extern bfd_boolean _bfd_add_merge_section
631 (bfd *, void **, asection *, void **);
633 /* Attempt to merge SEC_MERGE sections. */
635 extern bfd_boolean _bfd_merge_sections
636 (bfd *, struct bfd_link_info *, void *, void (*) (bfd *, asection *));
638 /* Write out a merged section. */
640 extern bfd_boolean _bfd_write_merged_section
641 (bfd *, asection *, void *);
643 /* Find an offset within a modified SEC_MERGE section. */
645 extern bfd_vma _bfd_merged_section_offset
646 (bfd *, asection **, void *, bfd_vma);
648 /* Create a string table. */
649 extern struct bfd_strtab_hash *_bfd_stringtab_init
652 /* Create an XCOFF .debug section style string table. */
653 extern struct bfd_strtab_hash *_bfd_xcoff_stringtab_init
656 /* Free a string table. */
657 extern void _bfd_stringtab_free
658 (struct bfd_strtab_hash *);
660 /* Get the size of a string table. */
661 extern bfd_size_type _bfd_stringtab_size
662 (struct bfd_strtab_hash *);
664 /* Add a string to a string table. */
665 extern bfd_size_type _bfd_stringtab_add
666 (struct bfd_strtab_hash *, const char *, bfd_boolean hash, bfd_boolean copy);
668 /* Write out a string table. */
669 extern bfd_boolean _bfd_stringtab_emit
670 (bfd *, struct bfd_strtab_hash *);
672 /* Check that endianness of input and output file match. */
673 extern bfd_boolean _bfd_generic_verify_endian_match
676 /* Macros to tell if bfds are read or write enabled.
678 Note that bfds open for read may be scribbled into if the fd passed
679 to bfd_fdopenr is actually open both for read and write
680 simultaneously. However an output bfd will never be open for
681 read. Therefore sometimes you want to check bfd_read_p or
682 !bfd_read_p, and only sometimes bfd_write_p.
685 #define bfd_read_p(abfd) \
686 ((abfd)->direction == read_direction || (abfd)->direction == both_direction)
687 #define bfd_write_p(abfd) \
688 ((abfd)->direction == write_direction || (abfd)->direction == both_direction)
693 #define BFD_ASSERT(x) \
694 do { if (!(x)) bfd_assert(__FILE__,__LINE__); } while (0)
697 do { bfd_assert(__FILE__,__LINE__); } while (0)
699 extern void _bfd_abort
700 (const char *, int, const char *) ATTRIBUTE_NORETURN;
702 /* if gcc >= 2.6, we can give a function name, too */
703 #if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 6)
704 #define __PRETTY_FUNCTION__ ((char *) NULL)
708 #define abort() _bfd_abort (__FILE__, __LINE__, __PRETTY_FUNCTION__)
710 /* Manipulate a system FILE but using BFD's "file_ptr", rather than
711 the system "off_t" or "off64_t", as the offset. */
712 extern file_ptr real_ftell (FILE *file);
713 extern int real_fseek (FILE *file, file_ptr offset, int whence);
714 extern FILE *real_fopen (const char *filename, const char *modes);
716 /* List of supported target vectors, and the default vector (if
717 bfd_default_vector[0] is NULL, there is no default). */
718 extern const bfd_target * const *bfd_target_vector;
719 extern const bfd_target *bfd_default_vector[];
721 /* List of associated target vectors. */
722 extern const bfd_target * const *bfd_associated_vector;
724 /* Functions shared by the ECOFF and MIPS ELF backends, which have no
725 other common header files. */
727 #if defined(__STDC__) || defined(ALMOST_STDC)
728 struct ecoff_find_line;
731 extern bfd_boolean _bfd_ecoff_locate_line
732 (bfd *, asection *, bfd_vma, struct ecoff_debug_info * const,
733 const struct ecoff_debug_swap * const, struct ecoff_find_line *,
734 const char **, const char **, unsigned int *);
735 extern bfd_boolean _bfd_ecoff_get_accumulated_pdr
736 (void *, bfd_byte *);
737 extern bfd_boolean _bfd_ecoff_get_accumulated_sym
738 (void *, bfd_byte *);
739 extern bfd_boolean _bfd_ecoff_get_accumulated_ss
740 (void *, bfd_byte *);
742 extern bfd_vma _bfd_get_gp_value
744 extern void _bfd_set_gp_value
747 /* Function shared by the COFF and ELF SH backends, which have no
748 other common header files. */
750 #ifndef _bfd_sh_align_load_span
751 extern bfd_boolean _bfd_sh_align_load_span
752 (bfd *, asection *, bfd_byte *,
753 bfd_boolean (*) (bfd *, asection *, void *, bfd_byte *, bfd_vma),
754 void *, bfd_vma **, bfd_vma *, bfd_vma, bfd_vma, bfd_boolean *);
757 /* This is the shape of the elements inside the already_linked hash
758 table. It maps a name onto a list of already_linked elements with
761 struct bfd_section_already_linked_hash_entry
763 struct bfd_hash_entry root;
764 struct bfd_section_already_linked *entry;
767 struct bfd_section_already_linked
769 struct bfd_section_already_linked *next;
773 extern struct bfd_section_already_linked_hash_entry *
774 bfd_section_already_linked_table_lookup (const char *);
775 extern bfd_boolean bfd_section_already_linked_table_insert
776 (struct bfd_section_already_linked_hash_entry *, asection *);
777 extern void bfd_section_already_linked_table_traverse
778 (bfd_boolean (*) (struct bfd_section_already_linked_hash_entry *,
781 extern bfd_vma read_unsigned_leb128 (bfd *, bfd_byte *, unsigned int *);
782 extern bfd_signed_vma read_signed_leb128 (bfd *, bfd_byte *, unsigned int *);