1 /* libbfd.h -- Declarations used by bfd library *implementation*.
2 (This include file is not for users of the library.)
3
4 Copyright (C) 1990-2021 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 #ifndef _LIBBFD_H
26 #define _LIBBFD_H 1
27
28 #ifndef ATTRIBUTE_HIDDEN
29 #if HAVE_HIDDEN
30 #define ATTRIBUTE_HIDDEN __attribute__ ((__visibility__ ("hidden")))
31 #else
32 #define ATTRIBUTE_HIDDEN
33 #endif
34 #endif
35
36 #include "hashtab.h"
37
38 #ifdef __cplusplus
39 extern "C" {
40 #endif
41
42 /* If you want to read and write large blocks, you might want to do it
43 in quanta of this amount */
44 #define DEFAULT_BUFFERSIZE 8192
45
46 /* Set a tdata field. Can't use the other macros for this, since they
47 do casts, and casting to the left of assignment isn't portable. */
48 #define set_tdata(bfd, v) ((bfd)->tdata.any = (v))
49
50 /* If BFD_IN_MEMORY is set for a BFD, then the iostream fields points
51 to an instance of this structure. */
52
53 struct bfd_in_memory
54 {
55 /* Size of buffer. */
56 bfd_size_type size;
57 /* Buffer holding contents of BFD. */
58 bfd_byte *buffer;
59 };
60
61 struct section_hash_entry
62 {
63 struct bfd_hash_entry root;
64 asection section;
65 };
66
67 /* Unique section id. */
68 extern unsigned int _bfd_section_id ATTRIBUTE_HIDDEN;
69
70 /* tdata for an archive. For an input archive, cache
71 needs to be free()'d. For an output archive, symdefs do. */
72
73 struct artdata
74 {
75 file_ptr first_file_filepos;
76 /* Speed up searching the armap */
77 htab_t cache;
78 bfd *archive_head; /* Only interesting in output routines. */
79 carsym *symdefs; /* The symdef entries. */
80 symindex symdef_count; /* How many there are. */
81 char *extended_names; /* Clever intel extension. */
82 bfd_size_type extended_names_size; /* Size of extended names. */
83 /* When more compilers are standard C, this can be a time_t. */
84 long armap_timestamp; /* Timestamp value written into armap.
85 This is used for BSD archives to check
86 that the timestamp is recent enough
87 for the BSD linker to not complain,
88 just before we finish writing an
89 archive. */
90 file_ptr armap_datepos; /* Position within archive to seek to
91 rewrite the date field. */
92 void *tdata; /* Backend specific information. */
93 };
94
95 #define bfd_ardata(bfd) ((bfd)->tdata.aout_ar_data)
96
97 /* Goes in bfd's arelt_data slot */
98 struct areltdata
99 {
100 char * arch_header; /* It's actually a string. */
101 bfd_size_type parsed_size; /* Octets of filesize not including ar_hdr. */
102 bfd_size_type extra_size; /* BSD4.4: extra bytes after the header. */
103 char *filename; /* Null-terminated. */
104 file_ptr origin; /* For element of a thin archive. */
105 void *parent_cache; /* Where and how to find this member. */
106 file_ptr key;
107 };
108
109 #define arelt_size(bfd) (((struct areltdata *)((bfd)->arelt_data))->parsed_size)
110
111 extern void *bfd_malloc
112 (bfd_size_type) ATTRIBUTE_HIDDEN;
113
114 static inline char *
bfd_strdup(const char * str)115 bfd_strdup (const char *str)
116 {
117 size_t len = strlen (str) + 1;
118 char *buf = bfd_malloc (len);
119 if (buf != NULL)
120 memcpy (buf, str, len);
121 return buf;
122 }
123 /* These routines allocate and free things on the BFD's objalloc. */
124
125 extern void bfd_release
126 (bfd *, void *) ATTRIBUTE_HIDDEN;
127
128 extern bfd * _bfd_create_empty_archive_element_shell
129 (bfd *) ATTRIBUTE_HIDDEN;
130 extern bfd * _bfd_look_for_bfd_in_cache
131 (bfd *, file_ptr) ATTRIBUTE_HIDDEN;
132 extern bool _bfd_add_bfd_to_archive_cache
133 (bfd *, file_ptr, bfd *) ATTRIBUTE_HIDDEN;
134 extern bool _bfd_generic_mkarchive
135 (bfd *) ATTRIBUTE_HIDDEN;
136 extern char *_bfd_append_relative_path
137 (bfd *, char *) ATTRIBUTE_HIDDEN;
138 extern bfd_cleanup bfd_generic_archive_p
139 (bfd *) ATTRIBUTE_HIDDEN;
140 extern bool bfd_slurp_armap
141 (bfd *) ATTRIBUTE_HIDDEN;
142 #define bfd_slurp_bsd_armap bfd_slurp_armap
143 #define bfd_slurp_coff_armap bfd_slurp_armap
144 extern bool _bfd_archive_64_bit_slurp_armap
145 (bfd *) ATTRIBUTE_HIDDEN;
146 extern bool _bfd_archive_64_bit_write_armap
147 (bfd *, unsigned int, struct orl *, unsigned int, int) ATTRIBUTE_HIDDEN;
148 #define _bfd_archive_64_bit_slurp_extended_name_table \
149 _bfd_slurp_extended_name_table
150 #define _bfd_archive_64_bit_construct_extended_name_table \
151 _bfd_archive_coff_construct_extended_name_table
152 #define _bfd_archive_64_bit_truncate_arname \
153 bfd_dont_truncate_arname
154 #define _bfd_archive_64_bit_read_ar_hdr \
155 _bfd_generic_read_ar_hdr
156 #define _bfd_archive_64_bit_write_ar_hdr \
157 _bfd_generic_write_ar_hdr
158 #define _bfd_archive_64_bit_openr_next_archived_file \
159 bfd_generic_openr_next_archived_file
160 #define _bfd_archive_64_bit_get_elt_at_index \
161 _bfd_generic_get_elt_at_index
162 #define _bfd_archive_64_bit_generic_stat_arch_elt \
163 bfd_generic_stat_arch_elt
164 #define _bfd_archive_64_bit_update_armap_timestamp _bfd_bool_bfd_true
165
166 extern bool _bfd_slurp_extended_name_table
167 (bfd *) ATTRIBUTE_HIDDEN;
168 extern bool _bfd_construct_extended_name_table
169 (bfd *, bool, char **, bfd_size_type *) ATTRIBUTE_HIDDEN;
170 extern bool _bfd_write_archive_contents
171 (bfd *) ATTRIBUTE_HIDDEN;
172 extern bool _bfd_compute_and_write_armap
173 (bfd *, unsigned int) ATTRIBUTE_HIDDEN;
174 extern bfd *_bfd_get_elt_at_filepos
175 (bfd *, file_ptr) ATTRIBUTE_HIDDEN;
176 extern bfd *_bfd_generic_get_elt_at_index
177 (bfd *, symindex) ATTRIBUTE_HIDDEN;
178 extern bfd * _bfd_new_bfd
179 (void) ATTRIBUTE_HIDDEN;
180 extern bool _bfd_free_cached_info
181 (bfd *) ATTRIBUTE_HIDDEN;
182
183 extern bool _bfd_bool_bfd_false
184 (bfd *) ATTRIBUTE_HIDDEN;
185 extern bool _bfd_bool_bfd_asymbol_false
186 (bfd *, asymbol *) ATTRIBUTE_HIDDEN;
187 extern bool _bfd_bool_bfd_false_error
188 (bfd *) ATTRIBUTE_HIDDEN;
189 extern bool _bfd_bool_bfd_link_false_error
190 (bfd *, struct bfd_link_info *) ATTRIBUTE_HIDDEN;
191 extern bool _bfd_bool_bfd_true
192 (bfd *) ATTRIBUTE_HIDDEN;
193 extern bool _bfd_bool_bfd_link_true
194 (bfd *, struct bfd_link_info *) ATTRIBUTE_HIDDEN;
195 extern bool _bfd_bool_bfd_bfd_true
196 (bfd *, bfd *) ATTRIBUTE_HIDDEN;
197 extern bool _bfd_bool_bfd_uint_true
198 (bfd *, unsigned int) ATTRIBUTE_HIDDEN;
199 extern bool _bfd_bool_bfd_asection_bfd_asection_true
200 (bfd *, asection *, bfd *, asection *) ATTRIBUTE_HIDDEN;
201 extern bool _bfd_bool_bfd_asymbol_bfd_asymbol_true
202 (bfd *, asymbol *, bfd *, asymbol *) ATTRIBUTE_HIDDEN;
203 extern bool _bfd_bool_bfd_ptr_true
204 (bfd *, void *) ATTRIBUTE_HIDDEN;
205 extern void *_bfd_ptr_bfd_null_error
206 (bfd *) ATTRIBUTE_HIDDEN;
207 extern int _bfd_int_bfd_0
208 (bfd *) ATTRIBUTE_HIDDEN;
209 extern unsigned int _bfd_uint_bfd_0
210 (bfd *) ATTRIBUTE_HIDDEN;
211 extern long _bfd_long_bfd_0
212 (bfd *) ATTRIBUTE_HIDDEN;
213 extern long _bfd_long_bfd_n1_error
214 (bfd *) ATTRIBUTE_HIDDEN;
215 extern void _bfd_void_bfd
216 (bfd *) ATTRIBUTE_HIDDEN;
217 extern void _bfd_void_bfd_link
218 (bfd *, struct bfd_link_info *) ATTRIBUTE_HIDDEN;
219 extern void _bfd_void_bfd_asection
220 (bfd *, asection *) ATTRIBUTE_HIDDEN;
221
222 extern bfd *_bfd_new_bfd_contained_in
223 (bfd *) ATTRIBUTE_HIDDEN;
224 extern bfd_cleanup _bfd_dummy_target
225 (bfd *) ATTRIBUTE_HIDDEN;
226 #define _bfd_no_cleanup _bfd_void_bfd
227
228 extern void bfd_dont_truncate_arname
229 (bfd *, const char *, char *) ATTRIBUTE_HIDDEN;
230 extern void bfd_bsd_truncate_arname
231 (bfd *, const char *, char *) ATTRIBUTE_HIDDEN;
232 extern void bfd_gnu_truncate_arname
233 (bfd *, const char *, char *) ATTRIBUTE_HIDDEN;
234
235 extern bool _bfd_bsd_write_armap
236 (bfd *, unsigned int, struct orl *, unsigned int, int) ATTRIBUTE_HIDDEN;
237
238 extern bool _bfd_coff_write_armap
239 (bfd *, unsigned int, struct orl *, unsigned int, int) ATTRIBUTE_HIDDEN;
240
241 extern void *_bfd_generic_read_ar_hdr
242 (bfd *) ATTRIBUTE_HIDDEN;
243 extern void _bfd_ar_spacepad
244 (char *, size_t, const char *, long) ATTRIBUTE_HIDDEN;
245 extern bool _bfd_ar_sizepad
246 (char *, size_t, bfd_size_type) ATTRIBUTE_HIDDEN;
247
248 extern void *_bfd_generic_read_ar_hdr_mag
249 (bfd *, const char *) ATTRIBUTE_HIDDEN;
250
251 extern bool _bfd_generic_write_ar_hdr
252 (bfd *, bfd *) ATTRIBUTE_HIDDEN;
253
254 extern bool _bfd_bsd44_write_ar_hdr
255 (bfd *, bfd *) ATTRIBUTE_HIDDEN;
256
257 extern bfd * bfd_generic_openr_next_archived_file
258 (bfd *, bfd *) ATTRIBUTE_HIDDEN;
259
260 extern int bfd_generic_stat_arch_elt
261 (bfd *, struct stat *) ATTRIBUTE_HIDDEN;
262
263 #define _bfd_read_ar_hdr(abfd) \
264 BFD_SEND (abfd, _bfd_read_ar_hdr_fn, (abfd))
265 #define _bfd_write_ar_hdr(archive, abfd) \
266 BFD_SEND (abfd, _bfd_write_ar_hdr_fn, (archive, abfd))
267
268 /* Generic routines to use for BFD_JUMP_TABLE_GENERIC. Use
269 BFD_JUMP_TABLE_GENERIC (_bfd_generic). */
270
271 #define _bfd_generic_close_and_cleanup _bfd_archive_close_and_cleanup
272 extern bool _bfd_archive_close_and_cleanup
273 (bfd *) ATTRIBUTE_HIDDEN;
274 extern void _bfd_unlink_from_archive_parent (bfd *) ATTRIBUTE_HIDDEN;
275 #define _bfd_generic_bfd_free_cached_info _bfd_bool_bfd_true
276 extern bool _bfd_generic_new_section_hook
277 (bfd *, asection *) ATTRIBUTE_HIDDEN;
278 extern bool _bfd_generic_get_section_contents
279 (bfd *, asection *, void *, file_ptr, bfd_size_type) ATTRIBUTE_HIDDEN;
280 extern bool _bfd_generic_get_section_contents_in_window
281 (bfd *, asection *, bfd_window *, file_ptr, bfd_size_type) ATTRIBUTE_HIDDEN;
282
283 /* Generic routines to use for BFD_JUMP_TABLE_COPY. Use
284 BFD_JUMP_TABLE_COPY (_bfd_generic). */
285
286 #define _bfd_generic_bfd_copy_private_bfd_data _bfd_bool_bfd_bfd_true
287 #define _bfd_generic_bfd_merge_private_bfd_data \
288 _bfd_bool_bfd_link_true
289 #define _bfd_generic_bfd_set_private_flags _bfd_bool_bfd_uint_true
290 #define _bfd_generic_bfd_copy_private_section_data \
291 _bfd_bool_bfd_asection_bfd_asection_true
292 #define _bfd_generic_bfd_copy_private_symbol_data \
293 _bfd_bool_bfd_asymbol_bfd_asymbol_true
294 #define _bfd_generic_bfd_copy_private_header_data _bfd_bool_bfd_bfd_true
295 #define _bfd_generic_bfd_print_private_bfd_data _bfd_bool_bfd_ptr_true
296
297 extern bool _bfd_generic_init_private_section_data
298 (bfd *, asection *, bfd *, asection *, struct bfd_link_info *)
299 ATTRIBUTE_HIDDEN;
300
301 /* Routines to use for BFD_JUMP_TABLE_CORE when there is no core file
302 support. Use BFD_JUMP_TABLE_CORE (_bfd_nocore). */
303
304 extern char *_bfd_nocore_core_file_failing_command
305 (bfd *) ATTRIBUTE_HIDDEN;
306 extern int _bfd_nocore_core_file_failing_signal
307 (bfd *) ATTRIBUTE_HIDDEN;
308 extern bool _bfd_nocore_core_file_matches_executable_p
309 (bfd *, bfd *) ATTRIBUTE_HIDDEN;
310 extern int _bfd_nocore_core_file_pid
311 (bfd *) ATTRIBUTE_HIDDEN;
312
313 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE when there is no archive
314 file support. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive). */
315
316 #define _bfd_noarchive_slurp_armap _bfd_bool_bfd_false_error
317 #define _bfd_noarchive_slurp_extended_name_table _bfd_bool_bfd_false_error
318 extern bool _bfd_noarchive_construct_extended_name_table
319 (bfd *, char **, bfd_size_type *, const char **) ATTRIBUTE_HIDDEN;
320 extern void _bfd_noarchive_truncate_arname
321 (bfd *, const char *, char *) ATTRIBUTE_HIDDEN;
322 extern bool _bfd_noarchive_write_armap
323 (bfd *, unsigned int, struct orl *, unsigned int, int) ATTRIBUTE_HIDDEN;
324 #define _bfd_noarchive_read_ar_hdr _bfd_ptr_bfd_null_error
325 extern bool _bfd_noarchive_write_ar_hdr
326 (bfd *, bfd *) ATTRIBUTE_HIDDEN;
327 extern bfd *
328 _bfd_noarchive_openr_next_archived_file
329 (bfd *, bfd *) ATTRIBUTE_HIDDEN;
330 extern bfd * _bfd_noarchive_get_elt_at_index
331 (bfd *, symindex) ATTRIBUTE_HIDDEN;
332 #define _bfd_noarchive_generic_stat_arch_elt bfd_generic_stat_arch_elt
333 #define _bfd_noarchive_update_armap_timestamp _bfd_bool_bfd_false_error
334
335 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get BSD style
336 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_bsd). */
337
338 #define _bfd_archive_bsd_slurp_armap bfd_slurp_bsd_armap
339 #define _bfd_archive_bsd_slurp_extended_name_table \
340 _bfd_slurp_extended_name_table
341 extern bool _bfd_archive_bsd_construct_extended_name_table
342 (bfd *, char **, bfd_size_type *, const char **) ATTRIBUTE_HIDDEN;
343 #define _bfd_archive_bsd_truncate_arname bfd_bsd_truncate_arname
344 #define _bfd_archive_bsd_write_armap _bfd_bsd_write_armap
345 #define _bfd_archive_bsd_read_ar_hdr _bfd_generic_read_ar_hdr
346 #define _bfd_archive_bsd_write_ar_hdr _bfd_generic_write_ar_hdr
347 #define _bfd_archive_bsd_openr_next_archived_file \
348 bfd_generic_openr_next_archived_file
349 #define _bfd_archive_bsd_get_elt_at_index _bfd_generic_get_elt_at_index
350 #define _bfd_archive_bsd_generic_stat_arch_elt \
351 bfd_generic_stat_arch_elt
352 extern bool _bfd_archive_bsd_update_armap_timestamp
353 (bfd *) ATTRIBUTE_HIDDEN;
354
355 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get COFF style
356 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff). */
357
358 #define _bfd_archive_coff_slurp_armap bfd_slurp_coff_armap
359 #define _bfd_archive_coff_slurp_extended_name_table \
360 _bfd_slurp_extended_name_table
361 extern bool _bfd_archive_coff_construct_extended_name_table
362 (bfd *, char **, bfd_size_type *, const char **) ATTRIBUTE_HIDDEN;
363 #define _bfd_archive_coff_truncate_arname bfd_dont_truncate_arname
364 #define _bfd_archive_coff_write_armap _bfd_coff_write_armap
365 #define _bfd_archive_coff_read_ar_hdr _bfd_generic_read_ar_hdr
366 #define _bfd_archive_coff_write_ar_hdr _bfd_generic_write_ar_hdr
367 #define _bfd_archive_coff_openr_next_archived_file \
368 bfd_generic_openr_next_archived_file
369 #define _bfd_archive_coff_get_elt_at_index _bfd_generic_get_elt_at_index
370 #define _bfd_archive_coff_generic_stat_arch_elt \
371 bfd_generic_stat_arch_elt
372 #define _bfd_archive_coff_update_armap_timestamp _bfd_bool_bfd_true
373
374 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get BSD4.4 style
375 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_bsd44). */
376
377 #define _bfd_archive_bsd44_slurp_armap bfd_slurp_bsd_armap
378 #define _bfd_archive_bsd44_slurp_extended_name_table \
379 _bfd_slurp_extended_name_table
380 extern bool _bfd_archive_bsd44_construct_extended_name_table
381 (bfd *, char **, bfd_size_type *, const char **) ATTRIBUTE_HIDDEN;
382 #define _bfd_archive_bsd44_truncate_arname bfd_bsd_truncate_arname
383 #define _bfd_archive_bsd44_write_armap _bfd_bsd_write_armap
384 #define _bfd_archive_bsd44_read_ar_hdr _bfd_generic_read_ar_hdr
385 #define _bfd_archive_bsd44_write_ar_hdr _bfd_bsd44_write_ar_hdr
386 #define _bfd_archive_bsd44_openr_next_archived_file \
387 bfd_generic_openr_next_archived_file
388 #define _bfd_archive_bsd44_get_elt_at_index _bfd_generic_get_elt_at_index
389 #define _bfd_archive_bsd44_generic_stat_arch_elt \
390 bfd_generic_stat_arch_elt
391 #define _bfd_archive_bsd44_update_armap_timestamp \
392 _bfd_archive_bsd_update_armap_timestamp
393
394 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get VMS style
395 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_vms_lib). Some of them
396 are irrelevant. */
397
398 extern bool _bfd_vms_lib_write_archive_contents
399 (bfd *) ATTRIBUTE_HIDDEN;
400 #define _bfd_vms_lib_slurp_armap _bfd_noarchive_slurp_armap
401 #define _bfd_vms_lib_slurp_extended_name_table \
402 _bfd_noarchive_slurp_extended_name_table
403 #define _bfd_vms_lib_construct_extended_name_table \
404 _bfd_noarchive_construct_extended_name_table
405 #define _bfd_vms_lib_truncate_arname _bfd_noarchive_truncate_arname
406 #define _bfd_vms_lib_write_armap _bfd_noarchive_write_armap
407 #define _bfd_vms_lib_read_ar_hdr _bfd_noarchive_read_ar_hdr
408 #define _bfd_vms_lib_write_ar_hdr _bfd_noarchive_write_ar_hdr
409 extern bfd *_bfd_vms_lib_openr_next_archived_file
410 (bfd *, bfd *) ATTRIBUTE_HIDDEN;
411 extern bfd *_bfd_vms_lib_get_elt_at_index
412 (bfd *, symindex) ATTRIBUTE_HIDDEN;
413 extern int _bfd_vms_lib_generic_stat_arch_elt
414 (bfd *, struct stat *) ATTRIBUTE_HIDDEN;
415 #define _bfd_vms_lib_update_armap_timestamp _bfd_bool_bfd_true
416
417 /* Extra routines for VMS style archives. */
418
419 extern symindex _bfd_vms_lib_find_symbol
420 (bfd *, const char *) ATTRIBUTE_HIDDEN;
421 extern bfd *_bfd_vms_lib_get_imagelib_file
422 (bfd *) ATTRIBUTE_HIDDEN;
423 extern bfd_cleanup _bfd_vms_lib_alpha_archive_p
424 (bfd *) ATTRIBUTE_HIDDEN;
425 extern bfd_cleanup _bfd_vms_lib_ia64_archive_p
426 (bfd *) ATTRIBUTE_HIDDEN;
427 extern bool _bfd_vms_lib_alpha_mkarchive
428 (bfd *) ATTRIBUTE_HIDDEN;
429 extern bool _bfd_vms_lib_ia64_mkarchive
430 (bfd *) ATTRIBUTE_HIDDEN;
431
432 /* Routines to use for BFD_JUMP_TABLE_SYMBOLS where there is no symbol
433 support. Use BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols). */
434
435 #define _bfd_nosymbols_get_symtab_upper_bound _bfd_long_bfd_n1_error
436 extern long _bfd_nosymbols_canonicalize_symtab
437 (bfd *, asymbol **) ATTRIBUTE_HIDDEN;
438 #define _bfd_nosymbols_make_empty_symbol _bfd_generic_make_empty_symbol
439 extern void _bfd_nosymbols_print_symbol
440 (bfd *, void *, asymbol *, bfd_print_symbol_type) ATTRIBUTE_HIDDEN;
441 extern void _bfd_nosymbols_get_symbol_info
442 (bfd *, asymbol *, symbol_info *) ATTRIBUTE_HIDDEN;
443 extern const char * _bfd_nosymbols_get_symbol_version_string
444 (bfd *, asymbol *, bool, bool *) ATTRIBUTE_HIDDEN;
445 extern bool _bfd_nosymbols_bfd_is_local_label_name
446 (bfd *, const char *) ATTRIBUTE_HIDDEN;
447 #define _bfd_nosymbols_bfd_is_target_special_symbol _bfd_bool_bfd_asymbol_false
448 extern alent *_bfd_nosymbols_get_lineno
449 (bfd *, asymbol *) ATTRIBUTE_HIDDEN;
450 extern bool _bfd_nosymbols_find_nearest_line
451 (bfd *, asymbol **, asection *, bfd_vma,
452 const char **, const char **, unsigned int *, unsigned int *)
453 ATTRIBUTE_HIDDEN;
454 extern bool _bfd_nosymbols_find_line
455 (bfd *, asymbol **, asymbol *, const char **, unsigned int *)
456 ATTRIBUTE_HIDDEN;
457 extern bool _bfd_nosymbols_find_inliner_info
458 (bfd *, const char **, const char **, unsigned int *) ATTRIBUTE_HIDDEN;
459 extern asymbol *_bfd_nosymbols_bfd_make_debug_symbol
460 (bfd *, void *, unsigned long) ATTRIBUTE_HIDDEN;
461 extern long _bfd_nosymbols_read_minisymbols
462 (bfd *, bool, void **, unsigned int *) ATTRIBUTE_HIDDEN;
463 extern asymbol *_bfd_nosymbols_minisymbol_to_symbol
464 (bfd *, bool, const void *, asymbol *) ATTRIBUTE_HIDDEN;
465
466 /* Routines to use for BFD_JUMP_TABLE_RELOCS when there is no reloc
467 support. Use BFD_JUMP_TABLE_RELOCS (_bfd_norelocs). */
468
469 extern long _bfd_norelocs_get_reloc_upper_bound
470 (bfd *, asection *) ATTRIBUTE_HIDDEN;
471 extern long _bfd_norelocs_canonicalize_reloc
472 (bfd *, asection *, arelent **, asymbol **) ATTRIBUTE_HIDDEN;
473 extern void _bfd_norelocs_set_reloc
474 (bfd *, asection *, arelent **, unsigned int) ATTRIBUTE_HIDDEN;
475 extern reloc_howto_type *_bfd_norelocs_bfd_reloc_type_lookup
476 (bfd *, bfd_reloc_code_real_type) ATTRIBUTE_HIDDEN;
477 extern reloc_howto_type *_bfd_norelocs_bfd_reloc_name_lookup
478 (bfd *, const char *) ATTRIBUTE_HIDDEN;
479
480 /* Routines to use for BFD_JUMP_TABLE_WRITE for targets which may not
481 be written. Use BFD_JUMP_TABLE_WRITE (_bfd_nowrite). */
482
483 extern bool _bfd_nowrite_set_arch_mach
484 (bfd *, enum bfd_architecture, unsigned long) ATTRIBUTE_HIDDEN;
485 extern bool _bfd_nowrite_set_section_contents
486 (bfd *, asection *, const void *, file_ptr, bfd_size_type) ATTRIBUTE_HIDDEN;
487
488 /* Generic routines to use for BFD_JUMP_TABLE_WRITE. Use
489 BFD_JUMP_TABLE_WRITE (_bfd_generic). */
490
491 #define _bfd_generic_set_arch_mach bfd_default_set_arch_mach
492 extern bool _bfd_generic_set_section_contents
493 (bfd *, asection *, const void *, file_ptr, bfd_size_type) ATTRIBUTE_HIDDEN;
494
495 /* Routines to use for BFD_JUMP_TABLE_LINK for targets which do not
496 support linking. Use BFD_JUMP_TABLE_LINK (_bfd_nolink). */
497
498 extern int _bfd_nolink_sizeof_headers
499 (bfd *, struct bfd_link_info *) ATTRIBUTE_HIDDEN;
500 extern bfd_byte *_bfd_nolink_bfd_get_relocated_section_contents
501 (bfd *, struct bfd_link_info *, struct bfd_link_order *,
502 bfd_byte *, bool, asymbol **) ATTRIBUTE_HIDDEN;
503 extern bool _bfd_nolink_bfd_relax_section
504 (bfd *, asection *, struct bfd_link_info *, bool *) ATTRIBUTE_HIDDEN;
505 #define _bfd_nolink_bfd_gc_sections _bfd_bool_bfd_link_false_error
506 extern bool _bfd_nolink_bfd_lookup_section_flags
507 (struct bfd_link_info *, struct flag_info *, asection *) ATTRIBUTE_HIDDEN;
508 #define _bfd_nolink_bfd_merge_sections _bfd_bool_bfd_link_false_error
509 extern bool _bfd_nolink_bfd_is_group_section
510 (bfd *, const asection *) ATTRIBUTE_HIDDEN;
511 extern const char *_bfd_nolink_bfd_group_name
512 (bfd *, const asection *) ATTRIBUTE_HIDDEN;
513 extern bool _bfd_nolink_bfd_discard_group
514 (bfd *, asection *) ATTRIBUTE_HIDDEN;
515 extern struct bfd_link_hash_table *_bfd_nolink_bfd_link_hash_table_create
516 (bfd *) ATTRIBUTE_HIDDEN;
517 #define _bfd_nolink_bfd_link_add_symbols _bfd_bool_bfd_link_false_error
518 extern void _bfd_nolink_bfd_link_just_syms
519 (asection *, struct bfd_link_info *) ATTRIBUTE_HIDDEN;
520 extern void _bfd_nolink_bfd_copy_link_hash_symbol_type
521 (bfd *, struct bfd_link_hash_entry *, struct bfd_link_hash_entry *)
522 ATTRIBUTE_HIDDEN;
523 #define _bfd_nolink_bfd_final_link _bfd_bool_bfd_link_false_error
524 extern bool _bfd_nolink_bfd_link_split_section
525 (bfd *, struct bfd_section *) ATTRIBUTE_HIDDEN;
526 extern bool _bfd_nolink_section_already_linked
527 (bfd *, asection *, struct bfd_link_info *) ATTRIBUTE_HIDDEN;
528 extern bool _bfd_nolink_bfd_define_common_symbol
529 (bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *)
530 ATTRIBUTE_HIDDEN;
531 #define _bfd_nolink_bfd_link_hide_symbol \
532 _bfd_generic_link_hide_symbol
533 extern struct bfd_link_hash_entry *_bfd_nolink_bfd_define_start_stop
534 (struct bfd_link_info *, const char *, asection *) ATTRIBUTE_HIDDEN;
535 #define _bfd_nolink_bfd_link_check_relocs \
536 _bfd_generic_link_check_relocs
537
538 /* Routines to use for BFD_JUMP_TABLE_DYNAMIC for targets which do not
539 have dynamic symbols or relocs. Use BFD_JUMP_TABLE_DYNAMIC
540 (_bfd_nodynamic). */
541
542 #define _bfd_nodynamic_get_dynamic_symtab_upper_bound _bfd_long_bfd_n1_error
543 #define _bfd_nodynamic_canonicalize_dynamic_symtab \
544 _bfd_nosymbols_canonicalize_symtab
545 extern long _bfd_nodynamic_get_synthetic_symtab
546 (bfd *, long, asymbol **, long, asymbol **, asymbol **) ATTRIBUTE_HIDDEN;
547 #define _bfd_nodynamic_get_dynamic_reloc_upper_bound _bfd_long_bfd_n1_error
548 extern long _bfd_nodynamic_canonicalize_dynamic_reloc
549 (bfd *, arelent **, asymbol **) ATTRIBUTE_HIDDEN;
550
551 /* Generic routine to determine of the given symbol is a local
552 label. */
553 extern bool bfd_generic_is_local_label_name
554 (bfd *, const char *) ATTRIBUTE_HIDDEN;
555
556 /* Generic minisymbol routines. */
557 extern long _bfd_generic_read_minisymbols
558 (bfd *, bool, void **, unsigned int *) ATTRIBUTE_HIDDEN;
559 extern asymbol *_bfd_generic_minisymbol_to_symbol
560 (bfd *, bool, const void *, asymbol *) ATTRIBUTE_HIDDEN;
561
562 /* Find the nearest line using .stab/.stabstr sections. */
563 extern bool _bfd_stab_section_find_nearest_line
564 (bfd *, asymbol **, asection *, bfd_vma, bool *,
565 const char **, const char **, unsigned int *, void **) ATTRIBUTE_HIDDEN;
566
567 /* Find the nearest line using DWARF 1 debugging information. */
568 extern bool _bfd_dwarf1_find_nearest_line
569 (bfd *, asymbol **, asection *, bfd_vma,
570 const char **, const char **, unsigned int *) ATTRIBUTE_HIDDEN;
571
572 struct dwarf_debug_section
573 {
574 const char * uncompressed_name;
575 const char * compressed_name;
576 };
577
578 /* Map of uncompressed DWARF debug section name to compressed one. It
579 is terminated by NULL uncompressed_name. */
580
581 extern const struct dwarf_debug_section dwarf_debug_sections[] ATTRIBUTE_HIDDEN;
582
583 /* Find the nearest line using DWARF 2 debugging information. */
584 extern int _bfd_dwarf2_find_nearest_line
585 (bfd *, asymbol **, asymbol *, asection *, bfd_vma,
586 const char **, const char **, unsigned int *, unsigned int *,
587 const struct dwarf_debug_section *, void **) ATTRIBUTE_HIDDEN;
588
589 /* Find the bias between DWARF addresses and real addresses. */
590 extern bfd_signed_vma _bfd_dwarf2_find_symbol_bias
591 (asymbol **, void **) ATTRIBUTE_HIDDEN;
592
593 /* Find inliner info after calling bfd_find_nearest_line. */
594 extern bool _bfd_dwarf2_find_inliner_info
595 (bfd *, const char **, const char **, unsigned int *, void **)
596 ATTRIBUTE_HIDDEN;
597
598 /* Read DWARF 2 debugging information. */
599 extern bool _bfd_dwarf2_slurp_debug_info
600 (bfd *, bfd *, const struct dwarf_debug_section *, asymbol **, void **,
601 bool) ATTRIBUTE_HIDDEN;
602
603 /* Clean up the data used to handle DWARF 2 debugging information. */
604 extern void _bfd_dwarf2_cleanup_debug_info
605 (bfd *, void **) ATTRIBUTE_HIDDEN;
606
607 /* Create a new section entry. */
608 extern struct bfd_hash_entry *bfd_section_hash_newfunc
609 (struct bfd_hash_entry *, struct bfd_hash_table *, const char *)
610 ATTRIBUTE_HIDDEN;
611
612 /* A routine to create entries for a bfd_link_hash_table. */
613 extern struct bfd_hash_entry *_bfd_link_hash_newfunc
614 (struct bfd_hash_entry *entry, struct bfd_hash_table *table,
615 const char *string) ATTRIBUTE_HIDDEN;
616
617 /* Initialize a bfd_link_hash_table. */
618 extern bool _bfd_link_hash_table_init
619 (struct bfd_link_hash_table *, bfd *,
620 struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
621 struct bfd_hash_table *,
622 const char *),
623 unsigned int) ATTRIBUTE_HIDDEN;
624
625 /* Generic link hash table creation routine. */
626 extern struct bfd_link_hash_table *_bfd_generic_link_hash_table_create
627 (bfd *) ATTRIBUTE_HIDDEN;
628
629 /* Generic link hash table destruction routine. */
630 extern void _bfd_generic_link_hash_table_free
631 (bfd *) ATTRIBUTE_HIDDEN;
632
633 /* Generic add symbol routine. */
634 extern bool _bfd_generic_link_add_symbols
635 (bfd *, struct bfd_link_info *) ATTRIBUTE_HIDDEN;
636
637 /* Generic archive add symbol routine. */
638 extern bool _bfd_generic_link_add_archive_symbols
639 (bfd *, struct bfd_link_info *,
640 bool (*) (bfd *, struct bfd_link_info *,
641 struct bfd_link_hash_entry *, const char *,
642 bool *)) ATTRIBUTE_HIDDEN;
643
644 /* Forward declaration to avoid prototype errors. */
645 typedef struct bfd_link_hash_entry _bfd_link_hash_entry;
646
647 /* Generic routine to add a single symbol. */
648 extern bool _bfd_generic_link_add_one_symbol
649 (struct bfd_link_info *, bfd *, const char *name, flagword,
650 asection *, bfd_vma, const char *, bool copy,
651 bool constructor, struct bfd_link_hash_entry **) ATTRIBUTE_HIDDEN;
652
653 /* Generic routine to mark section as supplying symbols only. */
654 extern void _bfd_generic_link_just_syms
655 (asection *, struct bfd_link_info *) ATTRIBUTE_HIDDEN;
656
657 /* Generic routine that does nothing. */
658 extern void _bfd_generic_copy_link_hash_symbol_type
659 (bfd *, struct bfd_link_hash_entry *, struct bfd_link_hash_entry *)
660 ATTRIBUTE_HIDDEN;
661
662 /* Generic link routine. */
663 extern bool _bfd_generic_final_link
664 (bfd *, struct bfd_link_info *) ATTRIBUTE_HIDDEN;
665
666 extern bool _bfd_generic_link_split_section
667 (bfd *, struct bfd_section *) ATTRIBUTE_HIDDEN;
668
669 extern bool _bfd_generic_section_already_linked
670 (bfd *, asection *, struct bfd_link_info *) ATTRIBUTE_HIDDEN;
671
672 /* Generic reloc_link_order processing routine. */
673 extern bool _bfd_generic_reloc_link_order
674 (bfd *, struct bfd_link_info *, asection *, struct bfd_link_order *)
675 ATTRIBUTE_HIDDEN;
676
677 /* Default link order processing routine. */
678 extern bool _bfd_default_link_order
679 (bfd *, struct bfd_link_info *, asection *, struct bfd_link_order *)
680 ATTRIBUTE_HIDDEN;
681
682 /* Count the number of reloc entries in a link order list. */
683 extern unsigned int _bfd_count_link_order_relocs
684 (struct bfd_link_order *) ATTRIBUTE_HIDDEN;
685
686 /* Final link relocation routine. */
687 extern bfd_reloc_status_type _bfd_final_link_relocate
688 (reloc_howto_type *, bfd *, asection *, bfd_byte *,
689 bfd_vma, bfd_vma, bfd_vma) ATTRIBUTE_HIDDEN;
690
691 /* Relocate a particular location by a howto and a value. */
692 extern bfd_reloc_status_type _bfd_relocate_contents
693 (reloc_howto_type *, bfd *, bfd_vma, bfd_byte *) ATTRIBUTE_HIDDEN;
694
695 /* Clear a given location using a given howto. */
696 extern bfd_reloc_status_type _bfd_clear_contents
697 (reloc_howto_type *, bfd *, asection *, bfd_byte *, bfd_vma) ATTRIBUTE_HIDDEN;
698
699 /* Link stabs in sections in the first pass. */
700
701 extern bool _bfd_link_section_stabs
702 (bfd *, struct stab_info *, asection *, asection *, void **,
703 bfd_size_type *) ATTRIBUTE_HIDDEN;
704
705 /* Eliminate stabs for discarded functions and symbols. */
706 extern bool _bfd_discard_section_stabs
707 (bfd *, asection *, void *, bool (*) (bfd_vma, void *), void *)
708 ATTRIBUTE_HIDDEN;
709
710 /* Write out the .stab section when linking stabs in sections. */
711
712 extern bool _bfd_write_section_stabs
713 (bfd *, struct stab_info *, asection *, void **, bfd_byte *)
714 ATTRIBUTE_HIDDEN;
715
716 /* Write out the .stabstr string table when linking stabs in sections. */
717
718 extern bool _bfd_write_stab_strings
719 (bfd *, struct stab_info *) ATTRIBUTE_HIDDEN;
720
721 /* Find an offset within a .stab section when linking stabs in
722 sections. */
723
724 extern bfd_vma _bfd_stab_section_offset
725 (asection *, void *, bfd_vma) ATTRIBUTE_HIDDEN;
726
727 /* Register a SEC_MERGE section as a candidate for merging. */
728
729 extern bool _bfd_add_merge_section
730 (bfd *, void **, asection *, void **) ATTRIBUTE_HIDDEN;
731
732 /* Attempt to merge SEC_MERGE sections. */
733
734 extern bool _bfd_merge_sections
735 (bfd *, struct bfd_link_info *, void *, void (*) (bfd *, asection *))
736 ATTRIBUTE_HIDDEN;
737
738 /* Write out a merged section. */
739
740 extern bool _bfd_write_merged_section
741 (bfd *, asection *, void *) ATTRIBUTE_HIDDEN;
742
743 /* Find an offset within a modified SEC_MERGE section. */
744
745 extern bfd_vma _bfd_merged_section_offset
746 (bfd *, asection **, void *, bfd_vma) ATTRIBUTE_HIDDEN;
747
748 /* Tidy up when done. */
749
750 extern void _bfd_merge_sections_free (void *) ATTRIBUTE_HIDDEN;
751
752 /* Create a string table. */
753 extern struct bfd_strtab_hash *_bfd_stringtab_init
754 (void) ATTRIBUTE_HIDDEN;
755
756 /* Create an XCOFF .debug section style string table. */
757 extern struct bfd_strtab_hash *_bfd_xcoff_stringtab_init
758 (bool isxcoff64) ATTRIBUTE_HIDDEN;
759
760 /* Free a string table. */
761 extern void _bfd_stringtab_free
762 (struct bfd_strtab_hash *) ATTRIBUTE_HIDDEN;
763
764 /* Get the size of a string table. */
765 extern bfd_size_type _bfd_stringtab_size
766 (struct bfd_strtab_hash *) ATTRIBUTE_HIDDEN;
767
768 /* Add a string to a string table. */
769 extern bfd_size_type _bfd_stringtab_add
770 (struct bfd_strtab_hash *, const char *, bool hash, bool copy)
771 ATTRIBUTE_HIDDEN;
772
773 /* Write out a string table. */
774 extern bool _bfd_stringtab_emit
775 (bfd *, struct bfd_strtab_hash *) ATTRIBUTE_HIDDEN;
776
777 /* Macros to tell if bfds are read or write enabled.
778
779 Note that bfds open for read may be scribbled into if the fd passed
780 to bfd_fdopenr is actually open both for read and write
781 simultaneously. However an output bfd will never be open for
782 read. Therefore sometimes you want to check bfd_read_p or
783 !bfd_read_p, and only sometimes bfd_write_p.
784 */
785
786 #define bfd_read_p(abfd) \
787 ((abfd)->direction == read_direction || (abfd)->direction == both_direction)
788 #define bfd_write_p(abfd) \
789 ((abfd)->direction == write_direction || (abfd)->direction == both_direction)
790
791 extern void bfd_assert
792 (const char*,int) ATTRIBUTE_HIDDEN;
793
794 #define BFD_ASSERT(x) \
795 do { if (!(x)) bfd_assert(__FILE__,__LINE__); } while (0)
796
797 #define BFD_FAIL() \
798 do { bfd_assert(__FILE__,__LINE__); } while (0)
799
800 extern void _bfd_abort
801 (const char *, int, const char *) ATTRIBUTE_NORETURN ATTRIBUTE_HIDDEN;
802
803 /* if gcc >= 2.6, we can give a function name, too */
804 #if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 6)
805 #define __PRETTY_FUNCTION__ ((char *) NULL)
806 #endif
807
808 #undef abort
809 #define abort() _bfd_abort (__FILE__, __LINE__, __PRETTY_FUNCTION__)
810
811 /* Manipulate a system FILE but using BFD's "file_ptr", rather than
812 the system "off_t" or "off64_t", as the offset. */
813 extern file_ptr _bfd_real_ftell
814 (FILE *) ATTRIBUTE_HIDDEN;
815 extern int _bfd_real_fseek
816 (FILE *, file_ptr, int) ATTRIBUTE_HIDDEN;
817 extern FILE *_bfd_real_fopen
818 (const char *, const char *) ATTRIBUTE_HIDDEN;
819
820 /* List of supported target vectors, and the default vector (if
821 bfd_default_vector[0] is NULL, there is no default). */
822 extern const bfd_target *const *const bfd_target_vector ATTRIBUTE_HIDDEN;
823 extern const bfd_target *bfd_default_vector[] ATTRIBUTE_HIDDEN;
824
825 /* List of associated target vectors. */
826 extern const bfd_target *const *const bfd_associated_vector ATTRIBUTE_HIDDEN;
827
828 /* Functions shared by the ECOFF and MIPS ELF backends, which have no
829 other common header files. */
830
831 #if defined(__STDC__) || defined(ALMOST_STDC)
832 struct ecoff_find_line;
833 #endif
834
835 extern bool _bfd_ecoff_locate_line
836 (bfd *, asection *, bfd_vma, struct ecoff_debug_info * const,
837 const struct ecoff_debug_swap * const, struct ecoff_find_line *,
838 const char **, const char **, unsigned int *) ATTRIBUTE_HIDDEN;
839 extern bool _bfd_ecoff_get_accumulated_pdr
840 (void *, bfd_byte *) ATTRIBUTE_HIDDEN;
841 extern bool _bfd_ecoff_get_accumulated_sym
842 (void *, bfd_byte *) ATTRIBUTE_HIDDEN;
843 extern bool _bfd_ecoff_get_accumulated_ss
844 (void *, bfd_byte *) ATTRIBUTE_HIDDEN;
845
846 extern bfd_vma _bfd_get_gp_value
847 (bfd *) ATTRIBUTE_HIDDEN;
848 extern void _bfd_set_gp_value
849 (bfd *, bfd_vma) ATTRIBUTE_HIDDEN;
850
851 /* Function shared by the COFF and ELF SH backends, which have no
852 other common header files. */
853
854 #ifndef _bfd_sh_align_load_span
855 extern bool _bfd_sh_align_load_span
856 (bfd *, asection *, bfd_byte *,
857 bool (*) (bfd *, asection *, void *, bfd_byte *, bfd_vma),
858 void *, bfd_vma **, bfd_vma *, bfd_vma, bfd_vma, bool *) ATTRIBUTE_HIDDEN;
859 #endif
860
861 /* This is the shape of the elements inside the already_linked hash
862 table. It maps a name onto a list of already_linked elements with
863 the same name. */
864
865 struct bfd_section_already_linked_hash_entry
866 {
867 struct bfd_hash_entry root;
868 struct bfd_section_already_linked *entry;
869 };
870
871 struct bfd_section_already_linked
872 {
873 struct bfd_section_already_linked *next;
874 asection *sec;
875 };
876
877 extern struct bfd_section_already_linked_hash_entry *
878 bfd_section_already_linked_table_lookup (const char *) ATTRIBUTE_HIDDEN;
879 extern bool bfd_section_already_linked_table_insert
880 (struct bfd_section_already_linked_hash_entry *, asection *)
881 ATTRIBUTE_HIDDEN;
882 extern void bfd_section_already_linked_table_traverse
883 (bool (*) (struct bfd_section_already_linked_hash_entry *,
884 void *), void *) ATTRIBUTE_HIDDEN;
885
886 extern bfd_vma _bfd_read_unsigned_leb128
887 (bfd *, bfd_byte *, unsigned int *) ATTRIBUTE_HIDDEN;
888 extern bfd_signed_vma _bfd_read_signed_leb128
889 (bfd *, bfd_byte *, unsigned int *) ATTRIBUTE_HIDDEN;
890 extern bfd_vma _bfd_safe_read_leb128
891 (bfd *, bfd_byte **, bool, const bfd_byte * const) ATTRIBUTE_HIDDEN;
892 extern bfd_byte * _bfd_write_unsigned_leb128
893 (bfd_byte *, bfd_byte *, bfd_vma) ATTRIBUTE_HIDDEN;
894
895 extern struct bfd_link_info *_bfd_get_link_info (bfd *);
896
897 #if GCC_VERSION >= 7000
898 #define _bfd_mul_overflow(a, b, res) __builtin_mul_overflow (a, b, res)
899 #else
900 /* Assumes unsigned values. Careful! Args evaluated multiple times. */
901 #define _bfd_mul_overflow(a, b, res) \
902 ((*res) = (a), (*res) *= (b), (b) != 0 && (*res) / (b) != (a))
903 #endif
904
905 #ifdef __GNUC__
906 #define _bfd_constant_p(v) __builtin_constant_p (v)
907 #else
908 #define _bfd_constant_p(v) 0
909 #endif
910
911 static inline bfd_byte *
_bfd_alloc_and_read(bfd * abfd,bfd_size_type asize,bfd_size_type rsize)912 _bfd_alloc_and_read (bfd *abfd, bfd_size_type asize, bfd_size_type rsize)
913 {
914 bfd_byte *mem;
915 if (!_bfd_constant_p (rsize))
916 {
917 ufile_ptr filesize = bfd_get_file_size (abfd);
918 if (filesize != 0 && rsize > filesize)
919 {
920 bfd_set_error (bfd_error_file_truncated);
921 return NULL;
922 }
923 }
924 mem = bfd_alloc (abfd, asize);
925 if (mem != NULL)
926 {
927 if (bfd_bread (mem, rsize, abfd) == rsize)
928 return mem;
929 bfd_release (abfd, mem);
930 }
931 return NULL;
932 }
933
934 static inline bfd_byte *
_bfd_malloc_and_read(bfd * abfd,bfd_size_type asize,bfd_size_type rsize)935 _bfd_malloc_and_read (bfd *abfd, bfd_size_type asize, bfd_size_type rsize)
936 {
937 bfd_byte *mem;
938 if (!_bfd_constant_p (rsize))
939 {
940 ufile_ptr filesize = bfd_get_file_size (abfd);
941 if (filesize != 0 && rsize > filesize)
942 {
943 bfd_set_error (bfd_error_file_truncated);
944 return NULL;
945 }
946 }
947 mem = bfd_malloc (asize);
948 if (mem != NULL)
949 {
950 if (bfd_bread (mem, rsize, abfd) == rsize)
951 return mem;
952 free (mem);
953 }
954 return NULL;
955 }
956