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[binutils.git] / bfd / libbfd-in.h
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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
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. */
27 #include "hashtab.h"
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
32 address space. */
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)) \
36 : ~ (bfd_vma) 0)
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. */
49 struct bfd_in_memory
51 /* Size of buffer. */
52 bfd_size_type size;
53 /* Buffer holding contents of BFD. */
54 bfd_byte *buffer;
57 struct section_hash_entry
59 struct bfd_hash_entry root;
60 asection section;
63 /* tdata for an archive. For an input archive, cache
64 needs to be free()'d. For an output archive, symdefs do. */
66 struct artdata {
67 file_ptr first_file_filepos;
68 /* Speed up searching the armap */
69 htab_t cache;
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
81 archive. */
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 */
90 struct areltdata {
91 char * arch_header; /* it's actually a string */
92 unsigned int parsed_size; /* octets of filesize not including ar_hdr */
93 char *filename; /* null-terminated */
96 #define arelt_size(bfd) (((struct areltdata *)((bfd)->arelt_data))->parsed_size)
98 extern void *bfd_malloc
99 (bfd_size_type);
100 extern void *bfd_realloc
101 (void *, bfd_size_type);
102 extern void *bfd_zmalloc
103 (bfd_size_type);
104 extern void *bfd_malloc2
105 (bfd_size_type, bfd_size_type);
106 extern void *bfd_realloc2
107 (void *, bfd_size_type, bfd_size_type);
108 extern void *bfd_zmalloc2
109 (bfd_size_type, bfd_size_type);
111 extern void _bfd_default_error_handler (const char *s, ...);
112 extern bfd_error_handler_type _bfd_error_handler;
114 /* These routines allocate and free things on the BFD's objalloc. */
116 extern void *bfd_alloc
117 (bfd *, bfd_size_type);
118 extern void *bfd_zalloc
119 (bfd *, bfd_size_type);
120 extern void *bfd_alloc2
121 (bfd *, bfd_size_type, bfd_size_type);
122 extern void *bfd_zalloc2
123 (bfd *, bfd_size_type, bfd_size_type);
124 extern void bfd_release
125 (bfd *, void *);
127 bfd * _bfd_create_empty_archive_element_shell
128 (bfd *obfd);
129 bfd * _bfd_look_for_bfd_in_cache
130 (bfd *, file_ptr);
131 bfd_boolean _bfd_add_bfd_to_archive_cache
132 (bfd *, file_ptr, bfd *);
133 bfd_boolean _bfd_generic_mkarchive
134 (bfd *abfd);
135 const bfd_target *bfd_generic_archive_p
136 (bfd *abfd);
137 bfd_boolean bfd_slurp_armap
138 (bfd *abfd);
139 bfd_boolean bfd_slurp_bsd_armap_f2
140 (bfd *abfd);
141 #define bfd_slurp_bsd_armap bfd_slurp_armap
142 #define bfd_slurp_coff_armap bfd_slurp_armap
143 bfd_boolean _bfd_slurp_extended_name_table
144 (bfd *abfd);
145 extern bfd_boolean _bfd_construct_extended_name_table
146 (bfd *, bfd_boolean, char **, bfd_size_type *);
147 bfd_boolean _bfd_write_archive_contents
148 (bfd *abfd);
149 bfd_boolean _bfd_compute_and_write_armap
150 (bfd *, unsigned int elength);
151 bfd *_bfd_get_elt_at_filepos
152 (bfd *archive, file_ptr filepos);
153 extern bfd *_bfd_generic_get_elt_at_index
154 (bfd *, symindex);
155 bfd * _bfd_new_bfd
156 (void);
157 void _bfd_delete_bfd
158 (bfd *);
159 bfd_boolean _bfd_free_cached_info
160 (bfd *);
162 bfd_boolean bfd_false
163 (bfd *ignore);
164 bfd_boolean bfd_true
165 (bfd *ignore);
166 void *bfd_nullvoidptr
167 (bfd *ignore);
168 int bfd_0
169 (bfd *ignore);
170 unsigned int bfd_0u
171 (bfd *ignore);
172 long bfd_0l
173 (bfd *ignore);
174 long _bfd_n1
175 (bfd *ignore);
176 void bfd_void
177 (bfd *ignore);
179 bfd *_bfd_new_bfd_contained_in
180 (bfd *);
181 const bfd_target *_bfd_dummy_target
182 (bfd *abfd);
184 void bfd_dont_truncate_arname
185 (bfd *abfd, const char *filename, char *hdr);
186 void bfd_bsd_truncate_arname
187 (bfd *abfd, const char *filename, char *hdr);
188 void bfd_gnu_truncate_arname
189 (bfd *abfd, const char *filename, char *hdr);
191 bfd_boolean bsd_write_armap
192 (bfd *arch, unsigned int elength, struct orl *map, unsigned int orl_count,
193 int stridx);
195 bfd_boolean coff_write_armap
196 (bfd *arch, unsigned int elength, struct orl *map, unsigned int orl_count,
197 int stridx);
199 extern void *_bfd_generic_read_ar_hdr
200 (bfd *);
201 extern void _bfd_ar_spacepad
202 (char *, size_t, const char *, long);
204 extern void *_bfd_generic_read_ar_hdr_mag
205 (bfd *, const char *);
207 bfd * bfd_generic_openr_next_archived_file
208 (bfd *archive, bfd *last_file);
210 int bfd_generic_stat_arch_elt
211 (bfd *, struct stat *);
213 #define _bfd_read_ar_hdr(abfd) \
214 BFD_SEND (abfd, _bfd_read_ar_hdr_fn, (abfd))
216 /* Generic routines to use for BFD_JUMP_TABLE_GENERIC. Use
217 BFD_JUMP_TABLE_GENERIC (_bfd_generic). */
219 #define _bfd_generic_close_and_cleanup bfd_true
220 #define _bfd_generic_bfd_free_cached_info bfd_true
221 extern bfd_boolean _bfd_generic_new_section_hook
222 (bfd *, asection *);
223 extern bfd_boolean _bfd_generic_get_section_contents
224 (bfd *, asection *, void *, file_ptr, bfd_size_type);
225 extern bfd_boolean _bfd_generic_get_section_contents_in_window
226 (bfd *, asection *, bfd_window *, file_ptr, bfd_size_type);
228 /* Generic routines to use for BFD_JUMP_TABLE_COPY. Use
229 BFD_JUMP_TABLE_COPY (_bfd_generic). */
231 #define _bfd_generic_bfd_copy_private_bfd_data \
232 ((bfd_boolean (*) (bfd *, bfd *)) bfd_true)
233 #define _bfd_generic_bfd_merge_private_bfd_data \
234 ((bfd_boolean (*) (bfd *, bfd *)) bfd_true)
235 #define _bfd_generic_bfd_set_private_flags \
236 ((bfd_boolean (*) (bfd *, flagword)) bfd_true)
237 #define _bfd_generic_bfd_copy_private_section_data \
238 ((bfd_boolean (*) (bfd *, asection *, bfd *, asection *)) bfd_true)
239 #define _bfd_generic_bfd_copy_private_symbol_data \
240 ((bfd_boolean (*) (bfd *, asymbol *, bfd *, asymbol *)) bfd_true)
241 #define _bfd_generic_bfd_copy_private_header_data \
242 ((bfd_boolean (*) (bfd *, bfd *)) bfd_true)
243 #define _bfd_generic_bfd_print_private_bfd_data \
244 ((bfd_boolean (*) (bfd *, void *)) bfd_true)
246 extern bfd_boolean _bfd_generic_init_private_section_data
247 (bfd *, asection *, bfd *, asection *, struct bfd_link_info *);
249 /* Routines to use for BFD_JUMP_TABLE_CORE when there is no core file
250 support. Use BFD_JUMP_TABLE_CORE (_bfd_nocore). */
252 extern char *_bfd_nocore_core_file_failing_command
253 (bfd *);
254 extern int _bfd_nocore_core_file_failing_signal
255 (bfd *);
256 extern bfd_boolean _bfd_nocore_core_file_matches_executable_p
257 (bfd *, bfd *);
259 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE when there is no archive
260 file support. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive). */
262 #define _bfd_noarchive_slurp_armap bfd_false
263 #define _bfd_noarchive_slurp_extended_name_table bfd_false
264 #define _bfd_noarchive_construct_extended_name_table \
265 ((bfd_boolean (*) (bfd *, char **, bfd_size_type *, const char **)) \
266 bfd_false)
267 #define _bfd_noarchive_truncate_arname \
268 ((void (*) (bfd *, const char *, char *)) bfd_void)
269 #define _bfd_noarchive_write_armap \
270 ((bfd_boolean (*) (bfd *, unsigned int, struct orl *, unsigned int, int)) \
271 bfd_false)
272 #define _bfd_noarchive_read_ar_hdr bfd_nullvoidptr
273 #define _bfd_noarchive_openr_next_archived_file \
274 ((bfd *(*) (bfd *, bfd *)) bfd_nullvoidptr)
275 #define _bfd_noarchive_get_elt_at_index \
276 ((bfd *(*) (bfd *, symindex)) bfd_nullvoidptr)
277 #define _bfd_noarchive_generic_stat_arch_elt bfd_generic_stat_arch_elt
278 #define _bfd_noarchive_update_armap_timestamp bfd_false
280 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get BSD style
281 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_bsd). */
283 #define _bfd_archive_bsd_slurp_armap bfd_slurp_bsd_armap
284 #define _bfd_archive_bsd_slurp_extended_name_table \
285 _bfd_slurp_extended_name_table
286 extern bfd_boolean _bfd_archive_bsd_construct_extended_name_table
287 (bfd *, char **, bfd_size_type *, const char **);
288 #define _bfd_archive_bsd_truncate_arname bfd_bsd_truncate_arname
289 #define _bfd_archive_bsd_write_armap bsd_write_armap
290 #define _bfd_archive_bsd_read_ar_hdr _bfd_generic_read_ar_hdr
291 #define _bfd_archive_bsd_openr_next_archived_file \
292 bfd_generic_openr_next_archived_file
293 #define _bfd_archive_bsd_get_elt_at_index _bfd_generic_get_elt_at_index
294 #define _bfd_archive_bsd_generic_stat_arch_elt \
295 bfd_generic_stat_arch_elt
296 extern bfd_boolean _bfd_archive_bsd_update_armap_timestamp
297 (bfd *);
299 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get COFF style
300 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff). */
302 #define _bfd_archive_coff_slurp_armap bfd_slurp_coff_armap
303 #define _bfd_archive_coff_slurp_extended_name_table \
304 _bfd_slurp_extended_name_table
305 extern bfd_boolean _bfd_archive_coff_construct_extended_name_table
306 (bfd *, char **, bfd_size_type *, const char **);
307 #define _bfd_archive_coff_truncate_arname bfd_dont_truncate_arname
308 #define _bfd_archive_coff_write_armap coff_write_armap
309 #define _bfd_archive_coff_read_ar_hdr _bfd_generic_read_ar_hdr
310 #define _bfd_archive_coff_openr_next_archived_file \
311 bfd_generic_openr_next_archived_file
312 #define _bfd_archive_coff_get_elt_at_index _bfd_generic_get_elt_at_index
313 #define _bfd_archive_coff_generic_stat_arch_elt \
314 bfd_generic_stat_arch_elt
315 #define _bfd_archive_coff_update_armap_timestamp bfd_true
317 /* Routines to use for BFD_JUMP_TABLE_SYMBOLS where there is no symbol
318 support. Use BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols). */
320 #define _bfd_nosymbols_get_symtab_upper_bound _bfd_n1
321 #define _bfd_nosymbols_canonicalize_symtab \
322 ((long (*) (bfd *, asymbol **)) _bfd_n1)
323 #define _bfd_nosymbols_make_empty_symbol _bfd_generic_make_empty_symbol
324 #define _bfd_nosymbols_print_symbol \
325 ((void (*) (bfd *, void *, asymbol *, bfd_print_symbol_type)) bfd_void)
326 #define _bfd_nosymbols_get_symbol_info \
327 ((void (*) (bfd *, asymbol *, symbol_info *)) bfd_void)
328 #define _bfd_nosymbols_bfd_is_local_label_name \
329 ((bfd_boolean (*) (bfd *, const char *)) bfd_false)
330 #define _bfd_nosymbols_bfd_is_target_special_symbol \
331 ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
332 #define _bfd_nosymbols_get_lineno \
333 ((alent *(*) (bfd *, asymbol *)) bfd_nullvoidptr)
334 #define _bfd_nosymbols_find_nearest_line \
335 ((bfd_boolean (*) (bfd *, asection *, asymbol **, bfd_vma, const char **, \
336 const char **, unsigned int *)) \
337 bfd_false)
338 #define _bfd_nosymbols_find_inliner_info \
339 ((bfd_boolean (*) (bfd *, const char **, const char **, unsigned int *)) \
340 bfd_false)
341 #define _bfd_nosymbols_bfd_make_debug_symbol \
342 ((asymbol *(*) (bfd *, void *, unsigned long)) bfd_nullvoidptr)
343 #define _bfd_nosymbols_read_minisymbols \
344 ((long (*) (bfd *, bfd_boolean, void **, unsigned int *)) _bfd_n1)
345 #define _bfd_nosymbols_minisymbol_to_symbol \
346 ((asymbol *(*) (bfd *, bfd_boolean, const void *, asymbol *)) \
347 bfd_nullvoidptr)
349 /* Routines to use for BFD_JUMP_TABLE_RELOCS when there is no reloc
350 support. Use BFD_JUMP_TABLE_RELOCS (_bfd_norelocs). */
352 extern long _bfd_norelocs_get_reloc_upper_bound (bfd *, asection *);
353 extern long _bfd_norelocs_canonicalize_reloc (bfd *, asection *,
354 arelent **, asymbol **);
355 #define _bfd_norelocs_bfd_reloc_type_lookup \
356 ((reloc_howto_type *(*) (bfd *, bfd_reloc_code_real_type)) bfd_nullvoidptr)
357 #define _bfd_norelocs_bfd_reloc_name_lookup \
358 ((reloc_howto_type *(*) (bfd *, const char *)) bfd_nullvoidptr)
360 /* Routines to use for BFD_JUMP_TABLE_WRITE for targets which may not
361 be written. Use BFD_JUMP_TABLE_WRITE (_bfd_nowrite). */
363 #define _bfd_nowrite_set_arch_mach \
364 ((bfd_boolean (*) (bfd *, enum bfd_architecture, unsigned long)) \
365 bfd_false)
366 #define _bfd_nowrite_set_section_contents \
367 ((bfd_boolean (*) (bfd *, asection *, const void *, file_ptr, bfd_size_type)) \
368 bfd_false)
370 /* Generic routines to use for BFD_JUMP_TABLE_WRITE. Use
371 BFD_JUMP_TABLE_WRITE (_bfd_generic). */
373 #define _bfd_generic_set_arch_mach bfd_default_set_arch_mach
374 extern bfd_boolean _bfd_generic_set_section_contents
375 (bfd *, asection *, const void *, file_ptr, bfd_size_type);
377 /* Routines to use for BFD_JUMP_TABLE_LINK for targets which do not
378 support linking. Use BFD_JUMP_TABLE_LINK (_bfd_nolink). */
380 #define _bfd_nolink_sizeof_headers \
381 ((int (*) (bfd *, struct bfd_link_info *)) bfd_0)
382 #define _bfd_nolink_bfd_get_relocated_section_contents \
383 ((bfd_byte *(*) (bfd *, struct bfd_link_info *, struct bfd_link_order *, \
384 bfd_byte *, bfd_boolean, asymbol **)) \
385 bfd_nullvoidptr)
386 #define _bfd_nolink_bfd_relax_section \
387 ((bfd_boolean (*) \
388 (bfd *, asection *, struct bfd_link_info *, bfd_boolean *)) \
389 bfd_false)
390 #define _bfd_nolink_bfd_gc_sections \
391 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) \
392 bfd_false)
393 #define _bfd_nolink_bfd_merge_sections \
394 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) \
395 bfd_false)
396 #define _bfd_nolink_bfd_is_group_section \
397 ((bfd_boolean (*) (bfd *, const struct bfd_section *)) \
398 bfd_false)
399 #define _bfd_nolink_bfd_discard_group \
400 ((bfd_boolean (*) (bfd *, struct bfd_section *)) \
401 bfd_false)
402 #define _bfd_nolink_bfd_link_hash_table_create \
403 ((struct bfd_link_hash_table *(*) (bfd *)) bfd_nullvoidptr)
404 #define _bfd_nolink_bfd_link_hash_table_free \
405 ((void (*) (struct bfd_link_hash_table *)) bfd_void)
406 #define _bfd_nolink_bfd_link_add_symbols \
407 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) bfd_false)
408 #define _bfd_nolink_bfd_link_just_syms \
409 ((void (*) (asection *, struct bfd_link_info *)) bfd_void)
410 #define _bfd_nolink_bfd_final_link \
411 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) bfd_false)
412 #define _bfd_nolink_bfd_link_split_section \
413 ((bfd_boolean (*) (bfd *, struct bfd_section *)) bfd_false)
414 #define _bfd_nolink_section_already_linked \
415 ((void (*) (bfd *, struct bfd_section *, struct bfd_link_info *)) bfd_void)
417 /* Routines to use for BFD_JUMP_TABLE_DYNAMIC for targets which do not
418 have dynamic symbols or relocs. Use BFD_JUMP_TABLE_DYNAMIC
419 (_bfd_nodynamic). */
421 #define _bfd_nodynamic_get_dynamic_symtab_upper_bound _bfd_n1
422 #define _bfd_nodynamic_canonicalize_dynamic_symtab \
423 ((long (*) (bfd *, asymbol **)) _bfd_n1)
424 #define _bfd_nodynamic_get_synthetic_symtab \
425 ((long (*) (bfd *, long, asymbol **, long, asymbol **, asymbol **)) _bfd_n1)
426 #define _bfd_nodynamic_get_dynamic_reloc_upper_bound _bfd_n1
427 #define _bfd_nodynamic_canonicalize_dynamic_reloc \
428 ((long (*) (bfd *, arelent **, asymbol **)) _bfd_n1)
430 /* Generic routine to determine of the given symbol is a local
431 label. */
432 extern bfd_boolean bfd_generic_is_local_label_name
433 (bfd *, const char *);
435 /* Generic minisymbol routines. */
436 extern long _bfd_generic_read_minisymbols
437 (bfd *, bfd_boolean, void **, unsigned int *);
438 extern asymbol *_bfd_generic_minisymbol_to_symbol
439 (bfd *, bfd_boolean, const void *, asymbol *);
441 /* Find the nearest line using .stab/.stabstr sections. */
442 extern bfd_boolean _bfd_stab_section_find_nearest_line
443 (bfd *, asymbol **, asection *, bfd_vma, bfd_boolean *,
444 const char **, const char **, unsigned int *, void **);
446 /* Find the nearest line using DWARF 1 debugging information. */
447 extern bfd_boolean _bfd_dwarf1_find_nearest_line
448 (bfd *, asection *, asymbol **, bfd_vma, const char **,
449 const char **, unsigned int *);
451 /* Find the nearest line using DWARF 2 debugging information. */
452 extern bfd_boolean _bfd_dwarf2_find_nearest_line
453 (bfd *, asection *, asymbol **, bfd_vma, const char **, const char **,
454 unsigned int *, unsigned int, void **);
456 /* Find the line using DWARF 2 debugging information. */
457 extern bfd_boolean _bfd_dwarf2_find_line
458 (bfd *, asymbol **, asymbol *, const char **,
459 unsigned int *, unsigned int, void **);
461 bfd_boolean _bfd_generic_find_line
462 (bfd *, asymbol **, asymbol *, const char **, unsigned int *);
464 /* Find inliner info after calling bfd_find_nearest_line. */
465 extern bfd_boolean _bfd_dwarf2_find_inliner_info
466 (bfd *, const char **, const char **, unsigned int *, void **);
468 /* Create a new section entry. */
469 extern struct bfd_hash_entry *bfd_section_hash_newfunc
470 (struct bfd_hash_entry *, struct bfd_hash_table *, const char *);
472 /* A routine to create entries for a bfd_link_hash_table. */
473 extern struct bfd_hash_entry *_bfd_link_hash_newfunc
474 (struct bfd_hash_entry *entry, struct bfd_hash_table *table,
475 const char *string);
477 /* Initialize a bfd_link_hash_table. */
478 extern bfd_boolean _bfd_link_hash_table_init
479 (struct bfd_link_hash_table *, bfd *,
480 struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
481 struct bfd_hash_table *,
482 const char *),
483 unsigned int);
485 /* Generic link hash table creation routine. */
486 extern struct bfd_link_hash_table *_bfd_generic_link_hash_table_create
487 (bfd *);
489 /* Generic link hash table destruction routine. */
490 extern void _bfd_generic_link_hash_table_free
491 (struct bfd_link_hash_table *);
493 /* Generic add symbol routine. */
494 extern bfd_boolean _bfd_generic_link_add_symbols
495 (bfd *, struct bfd_link_info *);
497 /* Generic add symbol routine. This version is used by targets for
498 which the linker must collect constructors and destructors by name,
499 as the collect2 program does. */
500 extern bfd_boolean _bfd_generic_link_add_symbols_collect
501 (bfd *, struct bfd_link_info *);
503 /* Generic archive add symbol routine. */
504 extern bfd_boolean _bfd_generic_link_add_archive_symbols
505 (bfd *, struct bfd_link_info *,
506 bfd_boolean (*) (bfd *, struct bfd_link_info *, bfd_boolean *));
508 /* Forward declaration to avoid prototype errors. */
509 typedef struct bfd_link_hash_entry _bfd_link_hash_entry;
511 /* Generic routine to add a single symbol. */
512 extern bfd_boolean _bfd_generic_link_add_one_symbol
513 (struct bfd_link_info *, bfd *, const char *name, flagword,
514 asection *, bfd_vma, const char *, bfd_boolean copy,
515 bfd_boolean constructor, struct bfd_link_hash_entry **);
517 /* Generic routine to mark section as supplying symbols only. */
518 extern void _bfd_generic_link_just_syms
519 (asection *, struct bfd_link_info *);
521 /* Generic link routine. */
522 extern bfd_boolean _bfd_generic_final_link
523 (bfd *, struct bfd_link_info *);
525 extern bfd_boolean _bfd_generic_link_split_section
526 (bfd *, struct bfd_section *);
528 extern void _bfd_generic_section_already_linked
529 (bfd *, struct bfd_section *, struct bfd_link_info *);
531 /* Generic reloc_link_order processing routine. */
532 extern bfd_boolean _bfd_generic_reloc_link_order
533 (bfd *, struct bfd_link_info *, asection *, struct bfd_link_order *);
535 /* Default link order processing routine. */
536 extern bfd_boolean _bfd_default_link_order
537 (bfd *, struct bfd_link_info *, asection *, struct bfd_link_order *);
539 /* Count the number of reloc entries in a link order list. */
540 extern unsigned int _bfd_count_link_order_relocs
541 (struct bfd_link_order *);
543 /* Final link relocation routine. */
544 extern bfd_reloc_status_type _bfd_final_link_relocate
545 (reloc_howto_type *, bfd *, asection *, bfd_byte *,
546 bfd_vma, bfd_vma, bfd_vma);
548 /* Relocate a particular location by a howto and a value. */
549 extern bfd_reloc_status_type _bfd_relocate_contents
550 (reloc_howto_type *, bfd *, bfd_vma, bfd_byte *);
552 /* Clear a given location using a given howto. */
553 extern void _bfd_clear_contents (reloc_howto_type *howto, bfd *input_bfd,
554 bfd_byte *location);
556 /* Link stabs in sections in the first pass. */
558 extern bfd_boolean _bfd_link_section_stabs
559 (bfd *, struct stab_info *, asection *, asection *, void **,
560 bfd_size_type *);
562 /* Eliminate stabs for discarded functions and symbols. */
563 extern bfd_boolean _bfd_discard_section_stabs
564 (bfd *, asection *, void *, bfd_boolean (*) (bfd_vma, void *), void *);
566 /* Write out the .stab section when linking stabs in sections. */
568 extern bfd_boolean _bfd_write_section_stabs
569 (bfd *, struct stab_info *, asection *, void **, bfd_byte *);
571 /* Write out the .stabstr string table when linking stabs in sections. */
573 extern bfd_boolean _bfd_write_stab_strings
574 (bfd *, struct stab_info *);
576 /* Find an offset within a .stab section when linking stabs in
577 sections. */
579 extern bfd_vma _bfd_stab_section_offset
580 (asection *, void *, bfd_vma);
582 /* Register a SEC_MERGE section as a candidate for merging. */
584 extern bfd_boolean _bfd_add_merge_section
585 (bfd *, void **, asection *, void **);
587 /* Attempt to merge SEC_MERGE sections. */
589 extern bfd_boolean _bfd_merge_sections
590 (bfd *, struct bfd_link_info *, void *, void (*) (bfd *, asection *));
592 /* Write out a merged section. */
594 extern bfd_boolean _bfd_write_merged_section
595 (bfd *, asection *, void *);
597 /* Find an offset within a modified SEC_MERGE section. */
599 extern bfd_vma _bfd_merged_section_offset
600 (bfd *, asection **, void *, bfd_vma);
602 /* Create a string table. */
603 extern struct bfd_strtab_hash *_bfd_stringtab_init
604 (void);
606 /* Create an XCOFF .debug section style string table. */
607 extern struct bfd_strtab_hash *_bfd_xcoff_stringtab_init
608 (void);
610 /* Free a string table. */
611 extern void _bfd_stringtab_free
612 (struct bfd_strtab_hash *);
614 /* Get the size of a string table. */
615 extern bfd_size_type _bfd_stringtab_size
616 (struct bfd_strtab_hash *);
618 /* Add a string to a string table. */
619 extern bfd_size_type _bfd_stringtab_add
620 (struct bfd_strtab_hash *, const char *, bfd_boolean hash, bfd_boolean copy);
622 /* Write out a string table. */
623 extern bfd_boolean _bfd_stringtab_emit
624 (bfd *, struct bfd_strtab_hash *);
626 /* Check that endianness of input and output file match. */
627 extern bfd_boolean _bfd_generic_verify_endian_match
628 (bfd *, bfd *);
630 /* Macros to tell if bfds are read or write enabled.
632 Note that bfds open for read may be scribbled into if the fd passed
633 to bfd_fdopenr is actually open both for read and write
634 simultaneously. However an output bfd will never be open for
635 read. Therefore sometimes you want to check bfd_read_p or
636 !bfd_read_p, and only sometimes bfd_write_p.
639 #define bfd_read_p(abfd) \
640 ((abfd)->direction == read_direction || (abfd)->direction == both_direction)
641 #define bfd_write_p(abfd) \
642 ((abfd)->direction == write_direction || (abfd)->direction == both_direction)
644 void bfd_assert
645 (const char*,int);
647 #define BFD_ASSERT(x) \
648 do { if (!(x)) bfd_assert(__FILE__,__LINE__); } while (0)
650 #define BFD_FAIL() \
651 do { bfd_assert(__FILE__,__LINE__); } while (0)
653 extern void _bfd_abort
654 (const char *, int, const char *) ATTRIBUTE_NORETURN;
656 /* if gcc >= 2.6, we can give a function name, too */
657 #if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 6)
658 #define __PRETTY_FUNCTION__ ((char *) NULL)
659 #endif
661 #undef abort
662 #define abort() _bfd_abort (__FILE__, __LINE__, __PRETTY_FUNCTION__)
664 /* Manipulate a system FILE but using BFD's "file_ptr", rather than
665 the system "off_t" or "off64_t", as the offset. */
666 extern file_ptr real_ftell (FILE *file);
667 extern int real_fseek (FILE *file, file_ptr offset, int whence);
668 extern FILE *real_fopen (const char *filename, const char *modes);
670 /* List of supported target vectors, and the default vector (if
671 bfd_default_vector[0] is NULL, there is no default). */
672 extern const bfd_target * const *bfd_target_vector;
673 extern const bfd_target *bfd_default_vector[];
675 /* List of associated target vectors. */
676 extern const bfd_target * const *bfd_associated_vector;
678 /* Functions shared by the ECOFF and MIPS ELF backends, which have no
679 other common header files. */
681 #if defined(__STDC__) || defined(ALMOST_STDC)
682 struct ecoff_find_line;
683 #endif
685 extern bfd_boolean _bfd_ecoff_locate_line
686 (bfd *, asection *, bfd_vma, struct ecoff_debug_info * const,
687 const struct ecoff_debug_swap * const, struct ecoff_find_line *,
688 const char **, const char **, unsigned int *);
689 extern bfd_boolean _bfd_ecoff_get_accumulated_pdr
690 (void *, bfd_byte *);
691 extern bfd_boolean _bfd_ecoff_get_accumulated_sym
692 (void *, bfd_byte *);
693 extern bfd_boolean _bfd_ecoff_get_accumulated_ss
694 (void *, bfd_byte *);
696 extern bfd_vma _bfd_get_gp_value
697 (bfd *);
698 extern void _bfd_set_gp_value
699 (bfd *, bfd_vma);
701 /* Function shared by the COFF and ELF SH backends, which have no
702 other common header files. */
704 #ifndef _bfd_sh_align_load_span
705 extern bfd_boolean _bfd_sh_align_load_span
706 (bfd *, asection *, bfd_byte *,
707 bfd_boolean (*) (bfd *, asection *, void *, bfd_byte *, bfd_vma),
708 void *, bfd_vma **, bfd_vma *, bfd_vma, bfd_vma, bfd_boolean *);
709 #endif
711 /* This is the shape of the elements inside the already_linked hash
712 table. It maps a name onto a list of already_linked elements with
713 the same name. */
715 struct bfd_section_already_linked_hash_entry
717 struct bfd_hash_entry root;
718 struct bfd_section_already_linked *entry;
721 struct bfd_section_already_linked
723 struct bfd_section_already_linked *next;
724 asection *sec;
727 extern struct bfd_section_already_linked_hash_entry *
728 bfd_section_already_linked_table_lookup (const char *);
729 extern bfd_boolean bfd_section_already_linked_table_insert
730 (struct bfd_section_already_linked_hash_entry *, asection *);
731 extern void bfd_section_already_linked_table_traverse
732 (bfd_boolean (*) (struct bfd_section_already_linked_hash_entry *,
733 void *), void *);
735 extern bfd_vma read_unsigned_leb128 (bfd *, bfd_byte *, unsigned int *);
736 extern bfd_signed_vma read_signed_leb128 (bfd *, bfd_byte *, unsigned int *);