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1/* libbfd.h -- Declarations used by bfd library *implementation*.
2 (This include file is not for users of the library.)
3
4 Copyright (C) 1990-2017 Free Software Foundation, Inc.
5
6 Written by Cygnus Support.
7
8 This file is part of BFD, the Binary File Descriptor library.
9
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.
14
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.
19
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. */
24
25#include "hashtab.h"
26
27#ifdef __cplusplus
28extern "C" {
29#endif
30
31/* If you want to read and write large blocks, you might want to do it
32 in quanta of this amount */
33#define DEFAULT_BUFFERSIZE 8192
34
35/* Set a tdata field. Can't use the other macros for this, since they
36 do casts, and casting to the left of assignment isn't portable. */
37#define set_tdata(bfd, v) ((bfd)->tdata.any = (v))
38
39/* If BFD_IN_MEMORY is set for a BFD, then the iostream fields points
40 to an instance of this structure. */
41
42struct bfd_in_memory
43{
44 /* Size of buffer. */
45 bfd_size_type size;
46 /* Buffer holding contents of BFD. */
47 bfd_byte *buffer;
48};
49
50struct section_hash_entry
51{
52 struct bfd_hash_entry root;
53 asection section;
54};
55
56/* tdata for an archive. For an input archive, cache
57 needs to be free()'d. For an output archive, symdefs do. */
58
59struct artdata
60{
61 file_ptr first_file_filepos;
62 /* Speed up searching the armap */
63 htab_t cache;
64 bfd *archive_head; /* Only interesting in output routines. */
65 carsym *symdefs; /* The symdef entries. */
66 symindex symdef_count; /* How many there are. */
67 char *extended_names; /* Clever intel extension. */
68 bfd_size_type extended_names_size; /* Size of extended names. */
69 /* When more compilers are standard C, this can be a time_t. */
70 long armap_timestamp; /* Timestamp value written into armap.
71 This is used for BSD archives to check
72 that the timestamp is recent enough
73 for the BSD linker to not complain,
74 just before we finish writing an
75 archive. */
76 file_ptr armap_datepos; /* Position within archive to seek to
77 rewrite the date field. */
78 void *tdata; /* Backend specific information. */
79};
80
81#define bfd_ardata(bfd) ((bfd)->tdata.aout_ar_data)
82
83/* Goes in bfd's arelt_data slot */
84struct areltdata
85{
86 char * arch_header; /* It's actually a string. */
87 bfd_size_type parsed_size; /* Octets of filesize not including ar_hdr. */
88 bfd_size_type extra_size; /* BSD4.4: extra bytes after the header. */
89 char *filename; /* Null-terminated. */
90 file_ptr origin; /* For element of a thin archive. */
91 void *parent_cache; /* Where and how to find this member. */
92 file_ptr key;
93};
94
95#define arelt_size(bfd) (((struct areltdata *)((bfd)->arelt_data))->parsed_size)
96
97extern void *bfd_malloc
98 (bfd_size_type);
99extern void *bfd_realloc
100 (void *, bfd_size_type);
101extern void *bfd_realloc_or_free
102 (void *, bfd_size_type);
103extern void *bfd_zmalloc
104 (bfd_size_type);
105extern void *bfd_malloc2
106 (bfd_size_type, bfd_size_type);
107extern void *bfd_realloc2
108 (void *, bfd_size_type, bfd_size_type);
109extern void *bfd_zmalloc2
110 (bfd_size_type, bfd_size_type);
111
112extern void _bfd_error_handler (const char *s, ...);
113
114/* These routines allocate and free things on the BFD's objalloc. */
115
116extern void *bfd_alloc2
117 (bfd *, bfd_size_type, bfd_size_type);
118extern void *bfd_zalloc2
119 (bfd *, bfd_size_type, bfd_size_type);
120extern void bfd_release
121 (bfd *, void *);
122
123bfd * _bfd_create_empty_archive_element_shell
124 (bfd *obfd);
125bfd * _bfd_look_for_bfd_in_cache
126 (bfd *, file_ptr);
127bfd_boolean _bfd_add_bfd_to_archive_cache
128 (bfd *, file_ptr, bfd *);
129bfd_boolean _bfd_generic_mkarchive
130 (bfd *abfd);
131char *_bfd_append_relative_path
132 (bfd *arch, char *elt_name);
133const bfd_target *bfd_generic_archive_p
134 (bfd *abfd);
135bfd_boolean bfd_slurp_armap
136 (bfd *abfd);
137bfd_boolean bfd_slurp_bsd_armap_f2
138 (bfd *abfd);
139#define bfd_slurp_bsd_armap bfd_slurp_armap
140#define bfd_slurp_coff_armap bfd_slurp_armap
141bfd_boolean _bfd_archive_64_bit_slurp_armap
142 (bfd *);
143bfd_boolean _bfd_archive_64_bit_write_armap
144 (bfd *, unsigned int, struct orl *, unsigned int, int);
145#define _bfd_archive_64_bit_slurp_extended_name_table \
146 _bfd_slurp_extended_name_table
147#define _bfd_archive_64_bit_construct_extended_name_table \
148 _bfd_archive_coff_construct_extended_name_table
149#define _bfd_archive_64_bit_truncate_arname \
150 bfd_dont_truncate_arname
151#define _bfd_archive_64_bit_read_ar_hdr \
152 _bfd_generic_read_ar_hdr
153#define _bfd_archive_64_bit_write_ar_hdr \
154 _bfd_generic_write_ar_hdr
155#define _bfd_archive_64_bit_openr_next_archived_file \
156 bfd_generic_openr_next_archived_file
157#define _bfd_archive_64_bit_get_elt_at_index \
158 _bfd_generic_get_elt_at_index
159#define _bfd_archive_64_bit_generic_stat_arch_elt \
160 bfd_generic_stat_arch_elt
161#define _bfd_archive_64_bit_update_armap_timestamp \
162 bfd_true
163
164bfd_boolean _bfd_slurp_extended_name_table
165 (bfd *abfd);
166extern bfd_boolean _bfd_construct_extended_name_table
167 (bfd *, bfd_boolean, char **, bfd_size_type *);
168bfd_boolean _bfd_write_archive_contents
169 (bfd *abfd);
170bfd_boolean _bfd_compute_and_write_armap
171 (bfd *, unsigned int elength);
172bfd *_bfd_get_elt_at_filepos
173 (bfd *archive, file_ptr filepos);
174extern bfd *_bfd_generic_get_elt_at_index
175 (bfd *, symindex);
176bfd * _bfd_new_bfd
177 (void);
178bfd_boolean _bfd_free_cached_info
179 (bfd *);
180
181bfd_boolean bfd_false
182 (bfd *ignore);
183bfd_boolean bfd_true
184 (bfd *ignore);
185void *bfd_nullvoidptr
186 (bfd *ignore);
187int bfd_0
188 (bfd *ignore);
189unsigned int bfd_0u
190 (bfd *ignore);
191long bfd_0l
192 (bfd *ignore);
193long _bfd_n1
194 (bfd *ignore);
195void bfd_void
196 (bfd *ignore);
197
198bfd *_bfd_new_bfd_contained_in
199 (bfd *);
200const bfd_target *_bfd_dummy_target
201 (bfd *abfd);
202
203void bfd_dont_truncate_arname
204 (bfd *abfd, const char *filename, char *hdr);
205void bfd_bsd_truncate_arname
206 (bfd *abfd, const char *filename, char *hdr);
207void bfd_gnu_truncate_arname
208 (bfd *abfd, const char *filename, char *hdr);
209
210bfd_boolean _bfd_bsd_write_armap
211 (bfd *arch, unsigned int elength, struct orl *map, unsigned int orl_count,
212 int stridx);
213
214bfd_boolean _bfd_coff_write_armap
215 (bfd *arch, unsigned int elength, struct orl *map, unsigned int orl_count,
216 int stridx);
217
218extern void *_bfd_generic_read_ar_hdr
219 (bfd *);
220extern void _bfd_ar_spacepad
221 (char *, size_t, const char *, long);
222extern bfd_boolean _bfd_ar_sizepad
223 (char *, size_t, bfd_size_type);
224
225extern void *_bfd_generic_read_ar_hdr_mag
226 (bfd *, const char *);
227
228extern bfd_boolean _bfd_generic_write_ar_hdr
229 (bfd *, bfd *);
230
231extern bfd_boolean _bfd_bsd44_write_ar_hdr
232 (bfd *, bfd *);
233
234bfd * bfd_generic_openr_next_archived_file
235 (bfd *archive, bfd *last_file);
236
237int bfd_generic_stat_arch_elt
238 (bfd *, struct stat *);
239
240#define _bfd_read_ar_hdr(abfd) \
241 BFD_SEND (abfd, _bfd_read_ar_hdr_fn, (abfd))
242#define _bfd_write_ar_hdr(archive, abfd) \
243 BFD_SEND (abfd, _bfd_write_ar_hdr_fn, (archive, abfd))
244\f
245/* Generic routines to use for BFD_JUMP_TABLE_GENERIC. Use
246 BFD_JUMP_TABLE_GENERIC (_bfd_generic). */
247
248#define _bfd_generic_close_and_cleanup _bfd_archive_close_and_cleanup
249extern bfd_boolean _bfd_archive_close_and_cleanup
250 (bfd *);
251#define _bfd_generic_bfd_free_cached_info bfd_true
252extern bfd_boolean _bfd_generic_new_section_hook
253 (bfd *, asection *);
254extern bfd_boolean _bfd_generic_get_section_contents
255 (bfd *, asection *, void *, file_ptr, bfd_size_type);
256extern bfd_boolean _bfd_generic_get_section_contents_in_window
257 (bfd *, asection *, bfd_window *, file_ptr, bfd_size_type);
258
259/* Generic routines to use for BFD_JUMP_TABLE_COPY. Use
260 BFD_JUMP_TABLE_COPY (_bfd_generic). */
261
262#define _bfd_generic_bfd_copy_private_bfd_data \
263 ((bfd_boolean (*) (bfd *, bfd *)) bfd_true)
264#define _bfd_generic_bfd_merge_private_bfd_data \
265 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) bfd_true)
266#define _bfd_generic_bfd_set_private_flags \
267 ((bfd_boolean (*) (bfd *, flagword)) bfd_true)
268#define _bfd_generic_bfd_copy_private_section_data \
269 ((bfd_boolean (*) (bfd *, asection *, bfd *, asection *)) bfd_true)
270#define _bfd_generic_bfd_copy_private_symbol_data \
271 ((bfd_boolean (*) (bfd *, asymbol *, bfd *, asymbol *)) bfd_true)
272#define _bfd_generic_bfd_copy_private_header_data \
273 ((bfd_boolean (*) (bfd *, bfd *)) bfd_true)
274#define _bfd_generic_bfd_print_private_bfd_data \
275 ((bfd_boolean (*) (bfd *, void *)) bfd_true)
276
277extern bfd_boolean _bfd_generic_init_private_section_data
278 (bfd *, asection *, bfd *, asection *, struct bfd_link_info *);
279
280/* Routines to use for BFD_JUMP_TABLE_CORE when there is no core file
281 support. Use BFD_JUMP_TABLE_CORE (_bfd_nocore). */
282
283extern char *_bfd_nocore_core_file_failing_command
284 (bfd *);
285extern int _bfd_nocore_core_file_failing_signal
286 (bfd *);
287extern bfd_boolean _bfd_nocore_core_file_matches_executable_p
288 (bfd *, bfd *);
289extern int _bfd_nocore_core_file_pid
290 (bfd *);
291
292/* Routines to use for BFD_JUMP_TABLE_ARCHIVE when there is no archive
293 file support. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive). */
294
295#define _bfd_noarchive_slurp_armap bfd_false
296#define _bfd_noarchive_slurp_extended_name_table bfd_false
297#define _bfd_noarchive_construct_extended_name_table \
298 ((bfd_boolean (*) (bfd *, char **, bfd_size_type *, const char **)) \
299 bfd_false)
300#define _bfd_noarchive_truncate_arname \
301 ((void (*) (bfd *, const char *, char *)) bfd_void)
302#define _bfd_noarchive_write_armap \
303 ((bfd_boolean (*) (bfd *, unsigned int, struct orl *, unsigned int, int)) \
304 bfd_false)
305#define _bfd_noarchive_read_ar_hdr bfd_nullvoidptr
306#define _bfd_noarchive_write_ar_hdr \
307 ((bfd_boolean (*) (bfd *, bfd *)) bfd_false)
308#define _bfd_noarchive_openr_next_archived_file \
309 ((bfd *(*) (bfd *, bfd *)) bfd_nullvoidptr)
310#define _bfd_noarchive_get_elt_at_index \
311 ((bfd *(*) (bfd *, symindex)) bfd_nullvoidptr)
312#define _bfd_noarchive_generic_stat_arch_elt bfd_generic_stat_arch_elt
313#define _bfd_noarchive_update_armap_timestamp bfd_false
314
315/* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get BSD style
316 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_bsd). */
317
318#define _bfd_archive_bsd_slurp_armap bfd_slurp_bsd_armap
319#define _bfd_archive_bsd_slurp_extended_name_table \
320 _bfd_slurp_extended_name_table
321extern bfd_boolean _bfd_archive_bsd_construct_extended_name_table
322 (bfd *, char **, bfd_size_type *, const char **);
323#define _bfd_archive_bsd_truncate_arname bfd_bsd_truncate_arname
324#define _bfd_archive_bsd_write_armap _bfd_bsd_write_armap
325#define _bfd_archive_bsd_read_ar_hdr _bfd_generic_read_ar_hdr
326#define _bfd_archive_bsd_write_ar_hdr _bfd_generic_write_ar_hdr
327#define _bfd_archive_bsd_openr_next_archived_file \
328 bfd_generic_openr_next_archived_file
329#define _bfd_archive_bsd_get_elt_at_index _bfd_generic_get_elt_at_index
330#define _bfd_archive_bsd_generic_stat_arch_elt \
331 bfd_generic_stat_arch_elt
332extern bfd_boolean _bfd_archive_bsd_update_armap_timestamp
333 (bfd *);
334
335/* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get COFF style
336 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff). */
337
338#define _bfd_archive_coff_slurp_armap bfd_slurp_coff_armap
339#define _bfd_archive_coff_slurp_extended_name_table \
340 _bfd_slurp_extended_name_table
341extern bfd_boolean _bfd_archive_coff_construct_extended_name_table
342 (bfd *, char **, bfd_size_type *, const char **);
343#define _bfd_archive_coff_truncate_arname bfd_dont_truncate_arname
344#define _bfd_archive_coff_write_armap _bfd_coff_write_armap
345#define _bfd_archive_coff_read_ar_hdr _bfd_generic_read_ar_hdr
346#define _bfd_archive_coff_write_ar_hdr _bfd_generic_write_ar_hdr
347#define _bfd_archive_coff_openr_next_archived_file \
348 bfd_generic_openr_next_archived_file
349#define _bfd_archive_coff_get_elt_at_index _bfd_generic_get_elt_at_index
350#define _bfd_archive_coff_generic_stat_arch_elt \
351 bfd_generic_stat_arch_elt
352#define _bfd_archive_coff_update_armap_timestamp bfd_true
353
354/* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get BSD4.4 style
355 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_bsd44). */
356
357#define _bfd_archive_bsd44_slurp_armap bfd_slurp_bsd_armap
358#define _bfd_archive_bsd44_slurp_extended_name_table \
359 _bfd_slurp_extended_name_table
360extern bfd_boolean _bfd_archive_bsd44_construct_extended_name_table
361 (bfd *, char **, bfd_size_type *, const char **);
362#define _bfd_archive_bsd44_truncate_arname bfd_bsd_truncate_arname
363#define _bfd_archive_bsd44_write_armap _bfd_bsd_write_armap
364#define _bfd_archive_bsd44_read_ar_hdr _bfd_generic_read_ar_hdr
365#define _bfd_archive_bsd44_write_ar_hdr _bfd_bsd44_write_ar_hdr
366#define _bfd_archive_bsd44_openr_next_archived_file \
367 bfd_generic_openr_next_archived_file
368#define _bfd_archive_bsd44_get_elt_at_index _bfd_generic_get_elt_at_index
369#define _bfd_archive_bsd44_generic_stat_arch_elt \
370 bfd_generic_stat_arch_elt
371#define _bfd_archive_bsd44_update_armap_timestamp \
372 _bfd_archive_bsd_update_armap_timestamp
373
374/* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get VMS style
375 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_vms_lib). Some of them
376 are irrelevant. */
377
378extern bfd_boolean _bfd_vms_lib_write_archive_contents (bfd *arch);
379#define _bfd_vms_lib_slurp_armap _bfd_noarchive_slurp_armap
380#define _bfd_vms_lib_slurp_extended_name_table \
381 _bfd_noarchive_slurp_extended_name_table
382#define _bfd_vms_lib_construct_extended_name_table \
383 _bfd_noarchive_construct_extended_name_table
384#define _bfd_vms_lib_truncate_arname _bfd_noarchive_truncate_arname
385#define _bfd_vms_lib_write_armap _bfd_noarchive_write_armap
386#define _bfd_vms_lib_read_ar_hdr _bfd_noarchive_read_ar_hdr
387#define _bfd_vms_lib_write_ar_hdr _bfd_noarchive_write_ar_hdr
388extern bfd *_bfd_vms_lib_openr_next_archived_file (bfd *, bfd *);
389extern bfd *_bfd_vms_lib_get_elt_at_index (bfd *, symindex);
390extern int _bfd_vms_lib_generic_stat_arch_elt (bfd *, struct stat *);
391#define _bfd_vms_lib_update_armap_timestamp bfd_true
392
393/* Extra routines for VMS style archives. */
394
395extern symindex _bfd_vms_lib_find_symbol (bfd *, const char *);
396extern bfd *_bfd_vms_lib_get_imagelib_file (bfd *);
397extern const bfd_target *_bfd_vms_lib_alpha_archive_p (bfd *abfd);
398extern const bfd_target *_bfd_vms_lib_ia64_archive_p (bfd *abfd);
399extern bfd_boolean _bfd_vms_lib_alpha_mkarchive (bfd *abfd);
400extern bfd_boolean _bfd_vms_lib_ia64_mkarchive (bfd *abfd);
401
402/* Routines to use for BFD_JUMP_TABLE_SYMBOLS where there is no symbol
403 support. Use BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols). */
404
405#define _bfd_nosymbols_get_symtab_upper_bound _bfd_n1
406#define _bfd_nosymbols_canonicalize_symtab \
407 ((long (*) (bfd *, asymbol **)) _bfd_n1)
408#define _bfd_nosymbols_make_empty_symbol _bfd_generic_make_empty_symbol
409#define _bfd_nosymbols_print_symbol \
410 ((void (*) (bfd *, void *, asymbol *, bfd_print_symbol_type)) bfd_void)
411#define _bfd_nosymbols_get_symbol_info \
412 ((void (*) (bfd *, asymbol *, symbol_info *)) bfd_void)
413#define _bfd_nosymbols_get_symbol_version_string \
414 ((const char *(*) (bfd *, asymbol *, bfd_boolean *)) bfd_nullvoidptr)
415#define _bfd_nosymbols_bfd_is_local_label_name \
416 ((bfd_boolean (*) (bfd *, const char *)) bfd_false)
417#define _bfd_nosymbols_bfd_is_target_special_symbol \
418 ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
419#define _bfd_nosymbols_get_lineno \
420 ((alent *(*) (bfd *, asymbol *)) bfd_nullvoidptr)
421#define _bfd_nosymbols_find_nearest_line \
422 ((bfd_boolean (*) (bfd *, asymbol **, asection *, bfd_vma, \
423 const char **, const char **, unsigned int *, \
424 unsigned int *)) \
425 bfd_false)
426#define _bfd_nosymbols_find_line \
427 ((bfd_boolean (*) (bfd *, asymbol **, asymbol *, \
428 const char **, unsigned int *)) \
429 bfd_false)
430#define _bfd_nosymbols_find_inliner_info \
431 ((bfd_boolean (*) (bfd *, const char **, const char **, unsigned int *)) \
432 bfd_false)
433#define _bfd_nosymbols_bfd_make_debug_symbol \
434 ((asymbol *(*) (bfd *, void *, unsigned long)) bfd_nullvoidptr)
435#define _bfd_nosymbols_read_minisymbols \
436 ((long (*) (bfd *, bfd_boolean, void **, unsigned int *)) _bfd_n1)
437#define _bfd_nosymbols_minisymbol_to_symbol \
438 ((asymbol *(*) (bfd *, bfd_boolean, const void *, asymbol *)) \
439 bfd_nullvoidptr)
440
441/* Routines to use for BFD_JUMP_TABLE_RELOCS when there is no reloc
442 support. Use BFD_JUMP_TABLE_RELOCS (_bfd_norelocs). */
443
444extern long _bfd_norelocs_get_reloc_upper_bound (bfd *, asection *);
445extern long _bfd_norelocs_canonicalize_reloc (bfd *, asection *,
446 arelent **, asymbol **);
447extern void _bfd_norelocs_set_reloc (bfd *, asection *,
448 arelent **, unsigned int);
449#define _bfd_norelocs_bfd_reloc_type_lookup \
450 ((reloc_howto_type *(*) (bfd *, bfd_reloc_code_real_type)) bfd_nullvoidptr)
451#define _bfd_norelocs_bfd_reloc_name_lookup \
452 ((reloc_howto_type *(*) (bfd *, const char *)) bfd_nullvoidptr)
453
454/* Routines to use for BFD_JUMP_TABLE_WRITE for targets which may not
455 be written. Use BFD_JUMP_TABLE_WRITE (_bfd_nowrite). */
456
457#define _bfd_nowrite_set_arch_mach \
458 ((bfd_boolean (*) (bfd *, enum bfd_architecture, unsigned long)) \
459 bfd_false)
460#define _bfd_nowrite_set_section_contents \
461 ((bfd_boolean (*) (bfd *, asection *, const void *, file_ptr, bfd_size_type)) \
462 bfd_false)
463
464/* Generic routines to use for BFD_JUMP_TABLE_WRITE. Use
465 BFD_JUMP_TABLE_WRITE (_bfd_generic). */
466
467#define _bfd_generic_set_arch_mach bfd_default_set_arch_mach
468extern bfd_boolean _bfd_generic_set_section_contents
469 (bfd *, asection *, const void *, file_ptr, bfd_size_type);
470
471/* Routines to use for BFD_JUMP_TABLE_LINK for targets which do not
472 support linking. Use BFD_JUMP_TABLE_LINK (_bfd_nolink). */
473
474#define _bfd_nolink_sizeof_headers \
475 ((int (*) (bfd *, struct bfd_link_info *)) bfd_0)
476#define _bfd_nolink_bfd_get_relocated_section_contents \
477 ((bfd_byte *(*) (bfd *, struct bfd_link_info *, struct bfd_link_order *, \
478 bfd_byte *, bfd_boolean, asymbol **)) \
479 bfd_nullvoidptr)
480#define _bfd_nolink_bfd_relax_section \
481 ((bfd_boolean (*) \
482 (bfd *, asection *, struct bfd_link_info *, bfd_boolean *)) \
483 bfd_false)
484#define _bfd_nolink_bfd_gc_sections \
485 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) \
486 bfd_false)
487#define _bfd_nolink_bfd_lookup_section_flags \
488 ((bfd_boolean (*) (struct bfd_link_info *, struct flag_info *, asection *)) \
489 bfd_0)
490#define _bfd_nolink_bfd_merge_sections \
491 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) \
492 bfd_false)
493#define _bfd_nolink_bfd_is_group_section \
494 ((bfd_boolean (*) (bfd *, const struct bfd_section *)) \
495 bfd_false)
496#define _bfd_nolink_bfd_discard_group \
497 ((bfd_boolean (*) (bfd *, struct bfd_section *)) \
498 bfd_false)
499#define _bfd_nolink_bfd_link_hash_table_create \
500 ((struct bfd_link_hash_table *(*) (bfd *)) bfd_nullvoidptr)
501#define _bfd_nolink_bfd_link_add_symbols \
502 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) bfd_false)
503#define _bfd_nolink_bfd_link_just_syms \
504 ((void (*) (asection *, struct bfd_link_info *)) bfd_void)
505#define _bfd_nolink_bfd_copy_link_hash_symbol_type \
506 ((void (*) (bfd *, struct bfd_link_hash_entry *, \
507 struct bfd_link_hash_entry *)) bfd_void)
508#define _bfd_nolink_bfd_final_link \
509 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) bfd_false)
510#define _bfd_nolink_bfd_link_split_section \
511 ((bfd_boolean (*) (bfd *, struct bfd_section *)) bfd_false)
512#define _bfd_nolink_section_already_linked \
513 ((bfd_boolean (*) (bfd *, asection *, \
514 struct bfd_link_info *)) bfd_false)
515#define _bfd_nolink_bfd_define_common_symbol \
516 ((bfd_boolean (*) (bfd *, struct bfd_link_info *, \
517 struct bfd_link_hash_entry *)) bfd_false)
518#define _bfd_nolink_bfd_define_start_stop \
519 ((struct bfd_link_hash_entry * (*) (struct bfd_link_info *, \
520 const char *, asection *)) bfd_nullvoidptr)
521#define _bfd_nolink_bfd_link_check_relocs \
522 _bfd_generic_link_check_relocs
523
524/* Routines to use for BFD_JUMP_TABLE_DYNAMIC for targets which do not
525 have dynamic symbols or relocs. Use BFD_JUMP_TABLE_DYNAMIC
526 (_bfd_nodynamic). */
527
528#define _bfd_nodynamic_get_dynamic_symtab_upper_bound _bfd_n1
529#define _bfd_nodynamic_canonicalize_dynamic_symtab \
530 ((long (*) (bfd *, asymbol **)) _bfd_n1)
531#define _bfd_nodynamic_get_synthetic_symtab \
532 ((long (*) (bfd *, long, asymbol **, long, asymbol **, asymbol **)) _bfd_n1)
533#define _bfd_nodynamic_get_dynamic_reloc_upper_bound _bfd_n1
534#define _bfd_nodynamic_canonicalize_dynamic_reloc \
535 ((long (*) (bfd *, arelent **, asymbol **)) _bfd_n1)
536\f
537/* Generic routine to determine of the given symbol is a local
538 label. */
539extern bfd_boolean bfd_generic_is_local_label_name
540 (bfd *, const char *);
541
542/* Generic minisymbol routines. */
543extern long _bfd_generic_read_minisymbols
544 (bfd *, bfd_boolean, void **, unsigned int *);
545extern asymbol *_bfd_generic_minisymbol_to_symbol
546 (bfd *, bfd_boolean, const void *, asymbol *);
547
548/* Find the nearest line using .stab/.stabstr sections. */
549extern bfd_boolean _bfd_stab_section_find_nearest_line
550 (bfd *, asymbol **, asection *, bfd_vma, bfd_boolean *,
551 const char **, const char **, unsigned int *, void **);
552
553/* Find the nearest line using DWARF 1 debugging information. */
554extern bfd_boolean _bfd_dwarf1_find_nearest_line
555 (bfd *, asymbol **, asection *, bfd_vma,
556 const char **, const char **, unsigned int *);
557
558struct dwarf_debug_section
559{
560 const char *uncompressed_name;
561 const char *compressed_name;
562};
563
564/* Map of uncompressed DWARF debug section name to compressed one. It
565 is terminated by NULL uncompressed_name. */
566
567extern const struct dwarf_debug_section dwarf_debug_sections[];
568
569/* Find the nearest line using DWARF 2 debugging information. */
570extern bfd_boolean _bfd_dwarf2_find_nearest_line
571 (bfd *, asymbol **, asymbol *, asection *, bfd_vma,
572 const char **, const char **, unsigned int *, unsigned int *,
573 const struct dwarf_debug_section *, unsigned int, void **);
574
575/* Find the bias between DWARF addresses and real addresses. */
576extern bfd_signed_vma _bfd_dwarf2_find_symbol_bias
577 (asymbol **, void **);
578
579/* Find inliner info after calling bfd_find_nearest_line. */
580extern bfd_boolean _bfd_dwarf2_find_inliner_info
581 (bfd *, const char **, const char **, unsigned int *, void **);
582
583/* Read DWARF 2 debugging information. */
584extern bfd_boolean _bfd_dwarf2_slurp_debug_info
585 (bfd *, bfd *, const struct dwarf_debug_section *, asymbol **, void **,
586 bfd_boolean);
587
588/* Clean up the data used to handle DWARF 2 debugging information. */
589extern void _bfd_dwarf2_cleanup_debug_info
590 (bfd *, void **);
591
592/* Create a new section entry. */
593extern struct bfd_hash_entry *bfd_section_hash_newfunc
594 (struct bfd_hash_entry *, struct bfd_hash_table *, const char *);
595
596/* A routine to create entries for a bfd_link_hash_table. */
597extern struct bfd_hash_entry *_bfd_link_hash_newfunc
598 (struct bfd_hash_entry *entry, struct bfd_hash_table *table,
599 const char *string);
600
601/* Initialize a bfd_link_hash_table. */
602extern bfd_boolean _bfd_link_hash_table_init
603 (struct bfd_link_hash_table *, bfd *,
604 struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
605 struct bfd_hash_table *,
606 const char *),
607 unsigned int);
608
609/* Generic link hash table creation routine. */
610extern struct bfd_link_hash_table *_bfd_generic_link_hash_table_create
611 (bfd *);
612
613/* Generic link hash table destruction routine. */
614extern void _bfd_generic_link_hash_table_free
615 (bfd *);
616
617/* Generic add symbol routine. */
618extern bfd_boolean _bfd_generic_link_add_symbols
619 (bfd *, struct bfd_link_info *);
620
621/* Generic archive add symbol routine. */
622extern bfd_boolean _bfd_generic_link_add_archive_symbols
623 (bfd *, struct bfd_link_info *,
624 bfd_boolean (*) (bfd *, struct bfd_link_info *,
625 struct bfd_link_hash_entry *, const char *,
626 bfd_boolean *));
627
628/* Forward declaration to avoid prototype errors. */
629typedef struct bfd_link_hash_entry _bfd_link_hash_entry;
630
631/* Generic routine to add a single symbol. */
632extern bfd_boolean _bfd_generic_link_add_one_symbol
633 (struct bfd_link_info *, bfd *, const char *name, flagword,
634 asection *, bfd_vma, const char *, bfd_boolean copy,
635 bfd_boolean constructor, struct bfd_link_hash_entry **);
636
637/* Generic routine to mark section as supplying symbols only. */
638extern void _bfd_generic_link_just_syms
639 (asection *, struct bfd_link_info *);
640
641/* Generic routine that does nothing. */
642extern void _bfd_generic_copy_link_hash_symbol_type
643 (bfd *, struct bfd_link_hash_entry *, struct bfd_link_hash_entry *);
644
645/* Generic link routine. */
646extern bfd_boolean _bfd_generic_final_link
647 (bfd *, struct bfd_link_info *);
648
649extern bfd_boolean _bfd_generic_link_split_section
650 (bfd *, struct bfd_section *);
651
652extern bfd_boolean _bfd_generic_section_already_linked
653 (bfd *, asection *, struct bfd_link_info *);
654
655/* Generic reloc_link_order processing routine. */
656extern bfd_boolean _bfd_generic_reloc_link_order
657 (bfd *, struct bfd_link_info *, asection *, struct bfd_link_order *);
658
659/* Default link order processing routine. */
660extern bfd_boolean _bfd_default_link_order
661 (bfd *, struct bfd_link_info *, asection *, struct bfd_link_order *);
662
663/* Count the number of reloc entries in a link order list. */
664extern unsigned int _bfd_count_link_order_relocs
665 (struct bfd_link_order *);
666
667/* Final link relocation routine. */
668extern bfd_reloc_status_type _bfd_final_link_relocate
669 (reloc_howto_type *, bfd *, asection *, bfd_byte *,
670 bfd_vma, bfd_vma, bfd_vma);
671
672/* Relocate a particular location by a howto and a value. */
673extern bfd_reloc_status_type _bfd_relocate_contents
674 (reloc_howto_type *, bfd *, bfd_vma, bfd_byte *);
675
676/* Clear a given location using a given howto. */
677extern void _bfd_clear_contents (reloc_howto_type *howto, bfd *input_bfd,
678 asection *input_section, bfd_byte *location);
679
680/* Link stabs in sections in the first pass. */
681
682extern bfd_boolean _bfd_link_section_stabs
683 (bfd *, struct stab_info *, asection *, asection *, void **,
684 bfd_size_type *);
685
686/* Eliminate stabs for discarded functions and symbols. */
687extern bfd_boolean _bfd_discard_section_stabs
688 (bfd *, asection *, void *, bfd_boolean (*) (bfd_vma, void *), void *);
689
690/* Write out the .stab section when linking stabs in sections. */
691
692extern bfd_boolean _bfd_write_section_stabs
693 (bfd *, struct stab_info *, asection *, void **, bfd_byte *);
694
695/* Write out the .stabstr string table when linking stabs in sections. */
696
697extern bfd_boolean _bfd_write_stab_strings
698 (bfd *, struct stab_info *);
699
700/* Find an offset within a .stab section when linking stabs in
701 sections. */
702
703extern bfd_vma _bfd_stab_section_offset
704 (asection *, void *, bfd_vma);
705
706/* Register a SEC_MERGE section as a candidate for merging. */
707
708extern bfd_boolean _bfd_add_merge_section
709 (bfd *, void **, asection *, void **);
710
711/* Attempt to merge SEC_MERGE sections. */
712
713extern bfd_boolean _bfd_merge_sections
714 (bfd *, struct bfd_link_info *, void *, void (*) (bfd *, asection *));
715
716/* Write out a merged section. */
717
718extern bfd_boolean _bfd_write_merged_section
719 (bfd *, asection *, void *);
720
721/* Find an offset within a modified SEC_MERGE section. */
722
723extern bfd_vma _bfd_merged_section_offset
724 (bfd *, asection **, void *, bfd_vma);
725
726/* Tidy up when done. */
727
728extern void _bfd_merge_sections_free (void *);
729
730/* Create a string table. */
731extern struct bfd_strtab_hash *_bfd_stringtab_init
732 (void);
733
734/* Create an XCOFF .debug section style string table. */
735extern struct bfd_strtab_hash *_bfd_xcoff_stringtab_init
736 (void);
737
738/* Free a string table. */
739extern void _bfd_stringtab_free
740 (struct bfd_strtab_hash *);
741
742/* Get the size of a string table. */
743extern bfd_size_type _bfd_stringtab_size
744 (struct bfd_strtab_hash *);
745
746/* Add a string to a string table. */
747extern bfd_size_type _bfd_stringtab_add
748 (struct bfd_strtab_hash *, const char *, bfd_boolean hash, bfd_boolean copy);
749
750/* Write out a string table. */
751extern bfd_boolean _bfd_stringtab_emit
752 (bfd *, struct bfd_strtab_hash *);
753\f
754/* Macros to tell if bfds are read or write enabled.
755
756 Note that bfds open for read may be scribbled into if the fd passed
757 to bfd_fdopenr is actually open both for read and write
758 simultaneously. However an output bfd will never be open for
759 read. Therefore sometimes you want to check bfd_read_p or
760 !bfd_read_p, and only sometimes bfd_write_p.
761*/
762
763#define bfd_read_p(abfd) \
764 ((abfd)->direction == read_direction || (abfd)->direction == both_direction)
765#define bfd_write_p(abfd) \
766 ((abfd)->direction == write_direction || (abfd)->direction == both_direction)
767
768void bfd_assert
769 (const char*,int);
770
771#define BFD_ASSERT(x) \
772 do { if (!(x)) bfd_assert(__FILE__,__LINE__); } while (0)
773
774#define BFD_FAIL() \
775 do { bfd_assert(__FILE__,__LINE__); } while (0)
776
777extern void _bfd_abort
778 (const char *, int, const char *) ATTRIBUTE_NORETURN;
779
780/* if gcc >= 2.6, we can give a function name, too */
781#if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 6)
782#define __PRETTY_FUNCTION__ ((char *) NULL)
783#endif
784
785#undef abort
786#define abort() _bfd_abort (__FILE__, __LINE__, __PRETTY_FUNCTION__)
787
788/* Manipulate a system FILE but using BFD's "file_ptr", rather than
789 the system "off_t" or "off64_t", as the offset. */
790extern file_ptr _bfd_real_ftell (FILE *file);
791extern int _bfd_real_fseek (FILE *file, file_ptr offset, int whence);
792extern FILE *_bfd_real_fopen (const char *filename, const char *modes);
793
794/* List of supported target vectors, and the default vector (if
795 bfd_default_vector[0] is NULL, there is no default). */
796extern const bfd_target * const *bfd_target_vector;
797extern const bfd_target *bfd_default_vector[];
798
799/* List of associated target vectors. */
800extern const bfd_target * const *bfd_associated_vector;
801
802/* Functions shared by the ECOFF and MIPS ELF backends, which have no
803 other common header files. */
804
805#if defined(__STDC__) || defined(ALMOST_STDC)
806struct ecoff_find_line;
807#endif
808
809extern bfd_boolean _bfd_ecoff_locate_line
810 (bfd *, asection *, bfd_vma, struct ecoff_debug_info * const,
811 const struct ecoff_debug_swap * const, struct ecoff_find_line *,
812 const char **, const char **, unsigned int *);
813extern bfd_boolean _bfd_ecoff_get_accumulated_pdr
814 (void *, bfd_byte *);
815extern bfd_boolean _bfd_ecoff_get_accumulated_sym
816 (void *, bfd_byte *);
817extern bfd_boolean _bfd_ecoff_get_accumulated_ss
818 (void *, bfd_byte *);
819
820extern bfd_vma _bfd_get_gp_value
821 (bfd *);
822extern void _bfd_set_gp_value
823 (bfd *, bfd_vma);
824
825/* Function shared by the COFF and ELF SH backends, which have no
826 other common header files. */
827
828#ifndef _bfd_sh_align_load_span
829extern bfd_boolean _bfd_sh_align_load_span
830 (bfd *, asection *, bfd_byte *,
831 bfd_boolean (*) (bfd *, asection *, void *, bfd_byte *, bfd_vma),
832 void *, bfd_vma **, bfd_vma *, bfd_vma, bfd_vma, bfd_boolean *);
833#endif
834
835/* This is the shape of the elements inside the already_linked hash
836 table. It maps a name onto a list of already_linked elements with
837 the same name. */
838
839struct bfd_section_already_linked_hash_entry
840{
841 struct bfd_hash_entry root;
842 struct bfd_section_already_linked *entry;
843};
844
845struct bfd_section_already_linked
846{
847 struct bfd_section_already_linked *next;
848 asection *sec;
849};
850
851extern struct bfd_section_already_linked_hash_entry *
852 bfd_section_already_linked_table_lookup (const char *);
853extern bfd_boolean bfd_section_already_linked_table_insert
854 (struct bfd_section_already_linked_hash_entry *, asection *);
855extern void bfd_section_already_linked_table_traverse
856 (bfd_boolean (*) (struct bfd_section_already_linked_hash_entry *,
857 void *), void *);
858
859extern bfd_vma _bfd_read_unsigned_leb128 (bfd *, bfd_byte *, unsigned int *);
860extern bfd_signed_vma _bfd_read_signed_leb128 (bfd *, bfd_byte *, unsigned int *);
861extern bfd_vma _bfd_safe_read_leb128 (bfd *, bfd_byte *, unsigned int *,
862 bfd_boolean, const bfd_byte * const);
GDB Binutils - Deliverables
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