/src/binutils-gdb/bfd/bfd.c
Line | Count | Source (jump to first uncovered line) |
1 | | /* Generic BFD library interface and support routines. |
2 | | Copyright (C) 1990-2024 Free Software Foundation, Inc. |
3 | | Written by Cygnus Support. |
4 | | |
5 | | This file is part of BFD, the Binary File Descriptor library. |
6 | | |
7 | | This program is free software; you can redistribute it and/or modify |
8 | | it under the terms of the GNU General Public License as published by |
9 | | the Free Software Foundation; either version 3 of the License, or |
10 | | (at your option) any later version. |
11 | | |
12 | | This program is distributed in the hope that it will be useful, |
13 | | but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
15 | | GNU General Public License for more details. |
16 | | |
17 | | You should have received a copy of the GNU General Public License |
18 | | along with this program; if not, write to the Free Software |
19 | | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
20 | | MA 02110-1301, USA. */ |
21 | | |
22 | | /* |
23 | | INODE |
24 | | typedef bfd, Error reporting, BFD front end, BFD front end |
25 | | |
26 | | SECTION |
27 | | <<typedef bfd>> |
28 | | |
29 | | A BFD has type <<bfd>>; objects of this type are the |
30 | | cornerstone of any application using BFD. Using BFD |
31 | | consists of making references though the BFD and to data in the BFD. |
32 | | |
33 | | Here is the structure that defines the type <<bfd>>. It |
34 | | contains the major data about the file and pointers |
35 | | to the rest of the data. |
36 | | |
37 | | EXTERNAL |
38 | | .typedef enum bfd_format |
39 | | . { |
40 | | . bfd_unknown = 0, {* File format is unknown. *} |
41 | | . bfd_object, {* Linker/assembler/compiler output. *} |
42 | | . bfd_archive, {* Object archive file. *} |
43 | | . bfd_core, {* Core dump. *} |
44 | | . bfd_type_end {* Marks the end; don't use it! *} |
45 | | . } |
46 | | .bfd_format; |
47 | | . |
48 | | .enum bfd_direction |
49 | | . { |
50 | | . no_direction = 0, |
51 | | . read_direction = 1, |
52 | | . write_direction = 2, |
53 | | . both_direction = 3 |
54 | | . }; |
55 | | . |
56 | | .enum bfd_last_io |
57 | | . { |
58 | | . bfd_io_seek = 0, |
59 | | . bfd_io_read = 1, |
60 | | . bfd_io_write = 2, |
61 | | . bfd_io_force = 3 |
62 | | . }; |
63 | | . |
64 | | .enum bfd_plugin_format |
65 | | . { |
66 | | . bfd_plugin_unknown = 0, |
67 | | . bfd_plugin_yes = 1, |
68 | | . bfd_plugin_no = 2 |
69 | | . }; |
70 | | . |
71 | | .struct bfd_build_id |
72 | | . { |
73 | | . bfd_size_type size; |
74 | | . bfd_byte data[1]; |
75 | | . }; |
76 | | . |
77 | | .enum bfd_lto_object_type |
78 | | . { |
79 | | . lto_non_object, {* Not an LTO object. *} |
80 | | . lto_non_ir_object, {* An object without LTO IR. *} |
81 | | . lto_slim_ir_object, {* A slim LTO IR object. *} |
82 | | . lto_fat_ir_object {* A fat LTO IR object. *} |
83 | | . }; |
84 | | . |
85 | | .struct bfd_mmapped_entry |
86 | | . { |
87 | | . void *addr; |
88 | | . size_t size; |
89 | | . }; |
90 | | . |
91 | | .struct bfd_mmapped |
92 | | . { |
93 | | . struct bfd_mmapped *next; |
94 | | . unsigned int max_entry; |
95 | | . unsigned int next_entry; |
96 | | . struct bfd_mmapped_entry entries[1]; |
97 | | . }; |
98 | | . |
99 | | |
100 | | CODE_FRAGMENT |
101 | | .struct bfd |
102 | | .{ |
103 | | . {* The filename the application opened the BFD with. *} |
104 | | . const char *filename; |
105 | | . |
106 | | . {* A pointer to the target jump table. *} |
107 | | . const struct bfd_target *xvec; |
108 | | . |
109 | | . {* The IOSTREAM, and corresponding IO vector that provide access |
110 | | . to the file backing the BFD. *} |
111 | | . void *iostream; |
112 | | . const struct bfd_iovec *iovec; |
113 | | . |
114 | | . {* The caching routines use these to maintain a |
115 | | . least-recently-used list of BFDs. *} |
116 | | . struct bfd *lru_prev, *lru_next; |
117 | | . |
118 | | . {* Track current file position (or current buffer offset for |
119 | | . in-memory BFDs). When a file is closed by the caching routines, |
120 | | . BFD retains state information on the file here. *} |
121 | | . ufile_ptr where; |
122 | | . |
123 | | . {* File modified time, if mtime_set is TRUE. *} |
124 | | . long mtime; |
125 | | . |
126 | | . {* A unique identifier of the BFD *} |
127 | | . unsigned int id; |
128 | | . |
129 | | . {* Format_specific flags. *} |
130 | | . flagword flags; |
131 | | . |
132 | | . {* Values that may appear in the flags field of a BFD. These also |
133 | | . appear in the object_flags field of the bfd_target structure, where |
134 | | . they indicate the set of flags used by that backend (not all flags |
135 | | . are meaningful for all object file formats) (FIXME: at the moment, |
136 | | . the object_flags values have mostly just been copied from backend |
137 | | . to another, and are not necessarily correct). *} |
138 | | . |
139 | | .#define BFD_NO_FLAGS 0x0 |
140 | | . |
141 | | . {* BFD contains relocation entries. *} |
142 | | .#define HAS_RELOC 0x1 |
143 | | . |
144 | | . {* BFD is directly executable. *} |
145 | | .#define EXEC_P 0x2 |
146 | | . |
147 | | . {* BFD has line number information (basically used for F_LNNO in a |
148 | | . COFF header). *} |
149 | | .#define HAS_LINENO 0x4 |
150 | | . |
151 | | . {* BFD has debugging information. *} |
152 | | .#define HAS_DEBUG 0x08 |
153 | | . |
154 | | . {* BFD has symbols. *} |
155 | | .#define HAS_SYMS 0x10 |
156 | | . |
157 | | . {* BFD has local symbols (basically used for F_LSYMS in a COFF |
158 | | . header). *} |
159 | | .#define HAS_LOCALS 0x20 |
160 | | . |
161 | | . {* BFD is a dynamic object. *} |
162 | | .#define DYNAMIC 0x40 |
163 | | . |
164 | | . {* Text section is write protected (if D_PAGED is not set, this is |
165 | | . like an a.out NMAGIC file) (the linker sets this by default, but |
166 | | . clears it for -r or -N). *} |
167 | | .#define WP_TEXT 0x80 |
168 | | . |
169 | | . {* BFD is dynamically paged (this is like an a.out ZMAGIC file) (the |
170 | | . linker sets this by default, but clears it for -r or -n or -N). *} |
171 | | .#define D_PAGED 0x100 |
172 | | . |
173 | | . {* BFD is relaxable (this means that bfd_relax_section may be able to |
174 | | . do something) (sometimes bfd_relax_section can do something even if |
175 | | . this is not set). *} |
176 | | .#define BFD_IS_RELAXABLE 0x200 |
177 | | . |
178 | | . {* This may be set before writing out a BFD to request using a |
179 | | . traditional format. For example, this is used to request that when |
180 | | . writing out an a.out object the symbols not be hashed to eliminate |
181 | | . duplicates. *} |
182 | | .#define BFD_TRADITIONAL_FORMAT 0x400 |
183 | | . |
184 | | . {* This flag indicates that the BFD contents are actually cached |
185 | | . in memory. If this is set, iostream points to a malloc'd |
186 | | . bfd_in_memory struct. *} |
187 | | .#define BFD_IN_MEMORY 0x800 |
188 | | . |
189 | | . {* This BFD has been created by the linker and doesn't correspond |
190 | | . to any input file. *} |
191 | | .#define BFD_LINKER_CREATED 0x1000 |
192 | | . |
193 | | . {* This may be set before writing out a BFD to request that it |
194 | | . be written using values for UIDs, GIDs, timestamps, etc. that |
195 | | . will be consistent from run to run. *} |
196 | | .#define BFD_DETERMINISTIC_OUTPUT 0x2000 |
197 | | . |
198 | | . {* Compress sections in this BFD. *} |
199 | | .#define BFD_COMPRESS 0x4000 |
200 | | . |
201 | | . {* Decompress sections in this BFD. *} |
202 | | .#define BFD_DECOMPRESS 0x8000 |
203 | | . |
204 | | . {* BFD is a dummy, for plugins. *} |
205 | | .#define BFD_PLUGIN 0x10000 |
206 | | . |
207 | | . {* Compress sections in this BFD with SHF_COMPRESSED from gABI. *} |
208 | | .#define BFD_COMPRESS_GABI 0x20000 |
209 | | . |
210 | | . {* Convert ELF common symbol type to STT_COMMON or STT_OBJECT in this |
211 | | . BFD. *} |
212 | | .#define BFD_CONVERT_ELF_COMMON 0x40000 |
213 | | . |
214 | | . {* Use the ELF STT_COMMON type in this BFD. *} |
215 | | .#define BFD_USE_ELF_STT_COMMON 0x80000 |
216 | | . |
217 | | . {* Put pathnames into archives (non-POSIX). *} |
218 | | .#define BFD_ARCHIVE_FULL_PATH 0x100000 |
219 | | . |
220 | | .#define BFD_CLOSED_BY_CACHE 0x200000 |
221 | | |
222 | | . {* Compress sections in this BFD with SHF_COMPRESSED zstd. *} |
223 | | .#define BFD_COMPRESS_ZSTD 0x400000 |
224 | | . |
225 | | . {* Don't generate ELF section header. *} |
226 | | .#define BFD_NO_SECTION_HEADER 0x800000 |
227 | | . |
228 | | . {* Flags bits which are for BFD use only. *} |
229 | | .#define BFD_FLAGS_FOR_BFD_USE_MASK \ |
230 | | . (BFD_IN_MEMORY | BFD_COMPRESS | BFD_DECOMPRESS | BFD_LINKER_CREATED \ |
231 | | . | BFD_PLUGIN | BFD_TRADITIONAL_FORMAT | BFD_DETERMINISTIC_OUTPUT \ |
232 | | . | BFD_COMPRESS_GABI | BFD_CONVERT_ELF_COMMON | BFD_USE_ELF_STT_COMMON \ |
233 | | . | BFD_NO_SECTION_HEADER) |
234 | | . |
235 | | . {* The format which belongs to the BFD. (object, core, etc.) *} |
236 | | . ENUM_BITFIELD (bfd_format) format : 3; |
237 | | . |
238 | | . {* The direction with which the BFD was opened. *} |
239 | | . ENUM_BITFIELD (bfd_direction) direction : 2; |
240 | | . |
241 | | . {* POSIX.1-2017 (IEEE Std 1003.1) says of fopen : "When a file is |
242 | | . opened with update mode ('+' as the second or third character in |
243 | | . the mode argument), both input and output may be performed on |
244 | | . the associated stream. However, the application shall ensure |
245 | | . that output is not directly followed by input without an |
246 | | . intervening call to fflush() or to a file positioning function |
247 | | . (fseek(), fsetpos(), or rewind()), and input is not directly |
248 | | . followed by output without an intervening call to a file |
249 | | . positioning function, unless the input operation encounters |
250 | | . end-of-file." |
251 | | . This field tracks the last IO operation, so that bfd can insert |
252 | | . a seek when IO direction changes. *} |
253 | | . ENUM_BITFIELD (bfd_last_io) last_io : 2; |
254 | | . |
255 | | . {* Is the file descriptor being cached? That is, can it be closed as |
256 | | . needed, and re-opened when accessed later? *} |
257 | | . unsigned int cacheable : 1; |
258 | | . |
259 | | . {* Marks whether there was a default target specified when the |
260 | | . BFD was opened. This is used to select which matching algorithm |
261 | | . to use to choose the back end. *} |
262 | | . unsigned int target_defaulted : 1; |
263 | | . |
264 | | . {* ... and here: (``once'' means at least once). *} |
265 | | . unsigned int opened_once : 1; |
266 | | . |
267 | | . {* Set if we have a locally maintained mtime value, rather than |
268 | | . getting it from the file each time. *} |
269 | | . unsigned int mtime_set : 1; |
270 | | . |
271 | | . {* Flag set if symbols from this BFD should not be exported. *} |
272 | | . unsigned int no_export : 1; |
273 | | . |
274 | | . {* Remember when output has begun, to stop strange things |
275 | | . from happening. *} |
276 | | . unsigned int output_has_begun : 1; |
277 | | . |
278 | | . {* Have archive map. *} |
279 | | . unsigned int has_armap : 1; |
280 | | . |
281 | | . {* Set if this is a thin archive. *} |
282 | | . unsigned int is_thin_archive : 1; |
283 | | . |
284 | | . {* Set if this archive should not cache element positions. *} |
285 | | . unsigned int no_element_cache : 1; |
286 | | . |
287 | | . {* Set if only required symbols should be added in the link hash table for |
288 | | . this object. Used by VMS linkers. *} |
289 | | . unsigned int selective_search : 1; |
290 | | . |
291 | | . {* Set if this is the linker output BFD. *} |
292 | | . unsigned int is_linker_output : 1; |
293 | | . |
294 | | . {* Set if this is the linker input BFD. *} |
295 | | . unsigned int is_linker_input : 1; |
296 | | . |
297 | | . {* If this is an input for a compiler plug-in library. *} |
298 | | . ENUM_BITFIELD (bfd_plugin_format) plugin_format : 2; |
299 | | . |
300 | | . {* Set if this is a plugin output file. *} |
301 | | . unsigned int lto_output : 1; |
302 | | . |
303 | | . {* Do not attempt to modify this file. Set when detecting errors |
304 | | . that BFD is not prepared to handle for objcopy/strip. *} |
305 | | . unsigned int read_only : 1; |
306 | | . |
307 | | . {* LTO object type. *} |
308 | | . ENUM_BITFIELD (bfd_lto_object_type) lto_type : 2; |
309 | | . |
310 | | . {* Set if this BFD is currently being processed by |
311 | | . bfd_check_format_matches. This is checked by the cache to |
312 | | . avoid closing the BFD in this case. This should only be |
313 | | . examined or modified while the BFD lock is held. *} |
314 | | . unsigned int in_format_matches : 1; |
315 | | . |
316 | | . {* Set to dummy BFD created when claimed by a compiler plug-in |
317 | | . library. *} |
318 | | . bfd *plugin_dummy_bfd; |
319 | | . |
320 | | . {* The offset of this bfd in the file, typically 0 if it is not |
321 | | . contained in an archive. *} |
322 | | . ufile_ptr origin; |
323 | | . |
324 | | . {* The origin in the archive of the proxy entry. This will |
325 | | . normally be the same as origin, except for thin archives, |
326 | | . when it will contain the current offset of the proxy in the |
327 | | . thin archive rather than the offset of the bfd in its actual |
328 | | . container. *} |
329 | | . ufile_ptr proxy_origin; |
330 | | . |
331 | | . {* A hash table for section names. *} |
332 | | . struct bfd_hash_table section_htab; |
333 | | . |
334 | | . {* Pointer to linked list of sections. *} |
335 | | . struct bfd_section *sections; |
336 | | . |
337 | | . {* The last section on the section list. *} |
338 | | . struct bfd_section *section_last; |
339 | | . |
340 | | . {* The number of sections. *} |
341 | | . unsigned int section_count; |
342 | | . |
343 | | . {* The archive plugin file descriptor. *} |
344 | | . int archive_plugin_fd; |
345 | | . |
346 | | . {* The number of opens on the archive plugin file descriptor. *} |
347 | | . unsigned int archive_plugin_fd_open_count; |
348 | | . |
349 | | . {* A field used by _bfd_generic_link_add_archive_symbols. This will |
350 | | . be used only for archive elements. *} |
351 | | . int archive_pass; |
352 | | . |
353 | | . {* The total size of memory from bfd_alloc. *} |
354 | | . bfd_size_type alloc_size; |
355 | | . |
356 | | . {* Stuff only useful for object files: |
357 | | . The start address. *} |
358 | | . bfd_vma start_address; |
359 | | . |
360 | | . {* Symbol table for output BFD (with symcount entries). |
361 | | . Also used by the linker to cache input BFD symbols. *} |
362 | | . struct bfd_symbol **outsymbols; |
363 | | . |
364 | | . {* Used for input and output. *} |
365 | | . unsigned int symcount; |
366 | | . |
367 | | . {* Used for slurped dynamic symbol tables. *} |
368 | | . unsigned int dynsymcount; |
369 | | . |
370 | | . {* Pointer to structure which contains architecture information. *} |
371 | | . const struct bfd_arch_info *arch_info; |
372 | | . |
373 | | . {* Cached length of file for bfd_get_size. 0 until bfd_get_size is |
374 | | . called, 1 if stat returns an error or the file size is too large to |
375 | | . return in ufile_ptr. Both 0 and 1 should be treated as "unknown". *} |
376 | | . ufile_ptr size; |
377 | | . |
378 | | . {* Stuff only useful for archives. *} |
379 | | . void *arelt_data; |
380 | | . struct bfd *my_archive; {* The containing archive BFD. *} |
381 | | . struct bfd *archive_next; {* The next BFD in the archive. *} |
382 | | . struct bfd *archive_head; {* The first BFD in the archive. *} |
383 | | . struct bfd *nested_archives; {* List of nested archive in a flattened |
384 | | . thin archive. *} |
385 | | . |
386 | | . union { |
387 | | . {* For input BFDs, a chain of BFDs involved in a link. *} |
388 | | . struct bfd *next; |
389 | | . {* For output BFD, the linker hash table. *} |
390 | | . struct bfd_link_hash_table *hash; |
391 | | . } link; |
392 | | . |
393 | | . {* Used by the back end to hold private data. *} |
394 | | . union |
395 | | . { |
396 | | . struct aout_data_struct *aout_data; |
397 | | . struct artdata *aout_ar_data; |
398 | | . struct coff_tdata *coff_obj_data; |
399 | | . struct pe_tdata *pe_obj_data; |
400 | | . struct xcoff_tdata *xcoff_obj_data; |
401 | | . struct ecoff_tdata *ecoff_obj_data; |
402 | | . struct srec_data_struct *srec_data; |
403 | | . struct verilog_data_struct *verilog_data; |
404 | | . struct ihex_data_struct *ihex_data; |
405 | | . struct tekhex_data_struct *tekhex_data; |
406 | | . struct elf_obj_tdata *elf_obj_data; |
407 | | . struct mmo_data_struct *mmo_data; |
408 | | . struct trad_core_struct *trad_core_data; |
409 | | . struct som_data_struct *som_data; |
410 | | . struct hpux_core_struct *hpux_core_data; |
411 | | . struct hppabsd_core_struct *hppabsd_core_data; |
412 | | . struct sgi_core_struct *sgi_core_data; |
413 | | . struct lynx_core_struct *lynx_core_data; |
414 | | . struct osf_core_struct *osf_core_data; |
415 | | . struct cisco_core_struct *cisco_core_data; |
416 | | . struct netbsd_core_struct *netbsd_core_data; |
417 | | . struct mach_o_data_struct *mach_o_data; |
418 | | . struct mach_o_fat_data_struct *mach_o_fat_data; |
419 | | . struct plugin_data_struct *plugin_data; |
420 | | . struct bfd_pef_data_struct *pef_data; |
421 | | . struct bfd_pef_xlib_data_struct *pef_xlib_data; |
422 | | . struct bfd_sym_data_struct *sym_data; |
423 | | . void *any; |
424 | | . } |
425 | | . tdata; |
426 | | . |
427 | | . {* Used by the application to hold private data. *} |
428 | | . void *usrdata; |
429 | | . |
430 | | . {* Where all the allocated stuff under this BFD goes. This is a |
431 | | . struct objalloc *, but we use void * to avoid requiring the inclusion |
432 | | . of objalloc.h. *} |
433 | | . void *memory; |
434 | | . |
435 | | . {* For input BFDs, the build ID, if the object has one. *} |
436 | | . const struct bfd_build_id *build_id; |
437 | | . |
438 | | . {* For input BFDs, mmapped entries. *} |
439 | | . struct bfd_mmapped *mmapped; |
440 | | .}; |
441 | | . |
442 | | |
443 | | EXTERNAL |
444 | | .static inline const char * |
445 | | .bfd_get_filename (const bfd *abfd) |
446 | | .{ |
447 | | . return abfd->filename; |
448 | | .} |
449 | | . |
450 | | .static inline bool |
451 | | .bfd_get_cacheable (const bfd *abfd) |
452 | | .{ |
453 | | . return abfd->cacheable; |
454 | | .} |
455 | | . |
456 | | .static inline enum bfd_format |
457 | | .bfd_get_format (const bfd *abfd) |
458 | | .{ |
459 | | . return abfd->format; |
460 | | .} |
461 | | . |
462 | | .static inline enum bfd_lto_object_type |
463 | | .bfd_get_lto_type (const bfd *abfd) |
464 | | .{ |
465 | | . return abfd->lto_type; |
466 | | .} |
467 | | . |
468 | | .static inline flagword |
469 | | .bfd_get_file_flags (const bfd *abfd) |
470 | | .{ |
471 | | . return abfd->flags; |
472 | | .} |
473 | | . |
474 | | .static inline bfd_vma |
475 | | .bfd_get_start_address (const bfd *abfd) |
476 | | .{ |
477 | | . return abfd->start_address; |
478 | | .} |
479 | | . |
480 | | .static inline unsigned int |
481 | | .bfd_get_symcount (const bfd *abfd) |
482 | | .{ |
483 | | . return abfd->symcount; |
484 | | .} |
485 | | . |
486 | | .static inline unsigned int |
487 | | .bfd_get_dynamic_symcount (const bfd *abfd) |
488 | | .{ |
489 | | . return abfd->dynsymcount; |
490 | | .} |
491 | | . |
492 | | .static inline struct bfd_symbol ** |
493 | | .bfd_get_outsymbols (const bfd *abfd) |
494 | | .{ |
495 | | . return abfd->outsymbols; |
496 | | .} |
497 | | . |
498 | | .static inline unsigned int |
499 | | .bfd_count_sections (const bfd *abfd) |
500 | | .{ |
501 | | . return abfd->section_count; |
502 | | .} |
503 | | . |
504 | | .static inline bool |
505 | | .bfd_has_map (const bfd *abfd) |
506 | | .{ |
507 | | . return abfd->has_armap; |
508 | | .} |
509 | | . |
510 | | .static inline bool |
511 | | .bfd_is_thin_archive (const bfd *abfd) |
512 | | .{ |
513 | | . return abfd->is_thin_archive; |
514 | | .} |
515 | | . |
516 | | .static inline void * |
517 | | .bfd_usrdata (const bfd *abfd) |
518 | | .{ |
519 | | . return abfd->usrdata; |
520 | | .} |
521 | | . |
522 | | .{* See note beside bfd_set_section_userdata. *} |
523 | | .static inline bool |
524 | | .bfd_set_cacheable (bfd * abfd, bool val) |
525 | | .{ |
526 | | . abfd->cacheable = val; |
527 | | . return true; |
528 | | .} |
529 | | . |
530 | | .static inline void |
531 | | .bfd_set_thin_archive (bfd *abfd, bool val) |
532 | | .{ |
533 | | . abfd->is_thin_archive = val; |
534 | | .} |
535 | | . |
536 | | .static inline void |
537 | | .bfd_set_usrdata (bfd *abfd, void *val) |
538 | | .{ |
539 | | . abfd->usrdata = val; |
540 | | .} |
541 | | . |
542 | | .static inline asection * |
543 | | .bfd_asymbol_section (const asymbol *sy) |
544 | | .{ |
545 | | . return sy->section; |
546 | | .} |
547 | | . |
548 | | .static inline bfd_vma |
549 | | .bfd_asymbol_value (const asymbol *sy) |
550 | | .{ |
551 | | . return sy->section->vma + sy->value; |
552 | | .} |
553 | | . |
554 | | .static inline const char * |
555 | | .bfd_asymbol_name (const asymbol *sy) |
556 | | .{ |
557 | | . return sy->name; |
558 | | .} |
559 | | . |
560 | | .static inline struct bfd * |
561 | | .bfd_asymbol_bfd (const asymbol *sy) |
562 | | .{ |
563 | | . return sy->the_bfd; |
564 | | .} |
565 | | . |
566 | | .static inline void |
567 | | .bfd_set_asymbol_name (asymbol *sy, const char *name) |
568 | | .{ |
569 | | . sy->name = name; |
570 | | .} |
571 | | . |
572 | | .{* For input sections return the original size on disk of the |
573 | | . section. For output sections return the current size. *} |
574 | | .static inline bfd_size_type |
575 | | .bfd_get_section_limit_octets (const bfd *abfd, const asection *sec) |
576 | | .{ |
577 | | . if (abfd->direction != write_direction && sec->rawsize != 0) |
578 | | . return sec->rawsize; |
579 | | . return sec->size; |
580 | | .} |
581 | | . |
582 | | .{* Find the address one past the end of SEC. *} |
583 | | .static inline bfd_size_type |
584 | | .bfd_get_section_limit (const bfd *abfd, const asection *sec) |
585 | | .{ |
586 | | . return (bfd_get_section_limit_octets (abfd, sec) |
587 | | . / bfd_octets_per_byte (abfd, sec)); |
588 | | .} |
589 | | . |
590 | | .{* For input sections return the larger of the current size and the |
591 | | . original size on disk of the section. For output sections return |
592 | | . the current size. *} |
593 | | .static inline bfd_size_type |
594 | | .bfd_get_section_alloc_size (const bfd *abfd, const asection *sec) |
595 | | .{ |
596 | | . if (abfd->direction != write_direction && sec->rawsize > sec->size) |
597 | | . return sec->rawsize; |
598 | | . return sec->size; |
599 | | .} |
600 | | . |
601 | | .{* Functions to handle insertion and deletion of a bfd's sections. These |
602 | | . only handle the list pointers, ie. do not adjust section_count, |
603 | | . target_index etc. *} |
604 | | .static inline void |
605 | | .bfd_section_list_remove (bfd *abfd, asection *s) |
606 | | .{ |
607 | | . asection *next = s->next; |
608 | | . asection *prev = s->prev; |
609 | | . if (prev) |
610 | | . prev->next = next; |
611 | | . else |
612 | | . abfd->sections = next; |
613 | | . if (next) |
614 | | . next->prev = prev; |
615 | | . else |
616 | | . abfd->section_last = prev; |
617 | | .} |
618 | | . |
619 | | .static inline void |
620 | | .bfd_section_list_append (bfd *abfd, asection *s) |
621 | | .{ |
622 | | . s->next = 0; |
623 | | . if (abfd->section_last) |
624 | | . { |
625 | | . s->prev = abfd->section_last; |
626 | | . abfd->section_last->next = s; |
627 | | . } |
628 | | . else |
629 | | . { |
630 | | . s->prev = 0; |
631 | | . abfd->sections = s; |
632 | | . } |
633 | | . abfd->section_last = s; |
634 | | .} |
635 | | . |
636 | | .static inline void |
637 | | .bfd_section_list_prepend (bfd *abfd, asection *s) |
638 | | .{ |
639 | | . s->prev = 0; |
640 | | . if (abfd->sections) |
641 | | . { |
642 | | . s->next = abfd->sections; |
643 | | . abfd->sections->prev = s; |
644 | | . } |
645 | | . else |
646 | | . { |
647 | | . s->next = 0; |
648 | | . abfd->section_last = s; |
649 | | . } |
650 | | . abfd->sections = s; |
651 | | .} |
652 | | . |
653 | | .static inline void |
654 | | .bfd_section_list_insert_after (bfd *abfd, asection *a, asection *s) |
655 | | .{ |
656 | | . asection *next = a->next; |
657 | | . s->next = next; |
658 | | . s->prev = a; |
659 | | . a->next = s; |
660 | | . if (next) |
661 | | . next->prev = s; |
662 | | . else |
663 | | . abfd->section_last = s; |
664 | | .} |
665 | | . |
666 | | .static inline void |
667 | | .bfd_section_list_insert_before (bfd *abfd, asection *b, asection *s) |
668 | | .{ |
669 | | . asection *prev = b->prev; |
670 | | . s->prev = prev; |
671 | | . s->next = b; |
672 | | . b->prev = s; |
673 | | . if (prev) |
674 | | . prev->next = s; |
675 | | . else |
676 | | . abfd->sections = s; |
677 | | .} |
678 | | . |
679 | | .static inline bool |
680 | | .bfd_section_removed_from_list (const bfd *abfd, const asection *s) |
681 | | .{ |
682 | | . return s->next ? s->next->prev != s : abfd->section_last != s; |
683 | | .} |
684 | | . |
685 | | */ |
686 | | |
687 | | #include "sysdep.h" |
688 | | #include <stdarg.h> |
689 | | #include "bfd.h" |
690 | | #include "bfdver.h" |
691 | | #include "libiberty.h" |
692 | | #include "demangle.h" |
693 | | #include "safe-ctype.h" |
694 | | #include "bfdlink.h" |
695 | | #include "libbfd.h" |
696 | | #include "coff/internal.h" |
697 | | #include "coff/sym.h" |
698 | | #include "libcoff.h" |
699 | | #include "libecoff.h" |
700 | | #undef obj_symbols |
701 | | #include "elf-bfd.h" |
702 | | |
703 | | #ifndef EXIT_FAILURE |
704 | | #define EXIT_FAILURE 1 |
705 | | #endif |
706 | | |
707 | | |
708 | | /* provide storage for subsystem, stack and heap data which may have been |
709 | | passed in on the command line. Ld puts this data into a bfd_link_info |
710 | | struct which ultimately gets passed in to the bfd. When it arrives, copy |
711 | | it to the following struct so that the data will be available in coffcode.h |
712 | | where it is needed. The typedef's used are defined in bfd.h */ |
713 | | |
714 | | /* |
715 | | INODE |
716 | | Error reporting, Initialization, typedef bfd, BFD front end |
717 | | |
718 | | SECTION |
719 | | Error reporting |
720 | | |
721 | | Most BFD functions return nonzero on success (check their |
722 | | individual documentation for precise semantics). On an error, |
723 | | they call <<bfd_set_error>> to set an error condition that callers |
724 | | can check by calling <<bfd_get_error>>. |
725 | | If that returns <<bfd_error_system_call>>, then check |
726 | | <<errno>>. |
727 | | |
728 | | The easiest way to report a BFD error to the user is to |
729 | | use <<bfd_perror>>. |
730 | | |
731 | | The BFD error is thread-local. |
732 | | |
733 | | SUBSECTION |
734 | | Type <<bfd_error_type>> |
735 | | |
736 | | The values returned by <<bfd_get_error>> are defined by the |
737 | | enumerated type <<bfd_error_type>>. |
738 | | |
739 | | CODE_FRAGMENT |
740 | | .typedef enum bfd_error |
741 | | .{ |
742 | | . bfd_error_no_error = 0, |
743 | | . bfd_error_system_call, |
744 | | . bfd_error_invalid_target, |
745 | | . bfd_error_wrong_format, |
746 | | . bfd_error_wrong_object_format, |
747 | | . bfd_error_invalid_operation, |
748 | | . bfd_error_no_memory, |
749 | | . bfd_error_no_symbols, |
750 | | . bfd_error_no_armap, |
751 | | . bfd_error_no_more_archived_files, |
752 | | . bfd_error_malformed_archive, |
753 | | . bfd_error_missing_dso, |
754 | | . bfd_error_file_not_recognized, |
755 | | . bfd_error_file_ambiguously_recognized, |
756 | | . bfd_error_no_contents, |
757 | | . bfd_error_nonrepresentable_section, |
758 | | . bfd_error_no_debug_section, |
759 | | . bfd_error_bad_value, |
760 | | . bfd_error_file_truncated, |
761 | | . bfd_error_file_too_big, |
762 | | . bfd_error_sorry, |
763 | | . bfd_error_on_input, |
764 | | . bfd_error_invalid_error_code |
765 | | .} |
766 | | .bfd_error_type; |
767 | | . |
768 | | */ |
769 | | |
770 | | static TLS bfd_error_type bfd_error; |
771 | | static TLS bfd_error_type input_error; |
772 | | static TLS bfd *input_bfd; |
773 | | static TLS char *_bfd_error_buf; |
774 | | |
775 | | const char *const bfd_errmsgs[] = |
776 | | { |
777 | | N_("no error"), |
778 | | N_("system call error"), |
779 | | N_("invalid bfd target"), |
780 | | N_("file in wrong format"), |
781 | | N_("archive object file in wrong format"), |
782 | | N_("invalid operation"), |
783 | | N_("memory exhausted"), |
784 | | N_("no symbols"), |
785 | | N_("archive has no index; run ranlib to add one"), |
786 | | N_("no more archived files"), |
787 | | N_("malformed archive"), |
788 | | N_("DSO missing from command line"), |
789 | | N_("file format not recognized"), |
790 | | N_("file format is ambiguous"), |
791 | | N_("section has no contents"), |
792 | | N_("nonrepresentable section on output"), |
793 | | N_("symbol needs debug section which does not exist"), |
794 | | N_("bad value"), |
795 | | N_("file truncated"), |
796 | | N_("file too big"), |
797 | | N_("sorry, cannot handle this file"), |
798 | | N_("error reading %s: %s"), |
799 | | N_("#<invalid error code>") |
800 | | }; |
801 | | |
802 | | /* |
803 | | FUNCTION |
804 | | bfd_get_error |
805 | | |
806 | | SYNOPSIS |
807 | | bfd_error_type bfd_get_error (void); |
808 | | |
809 | | DESCRIPTION |
810 | | Return the current BFD error condition. |
811 | | */ |
812 | | |
813 | | bfd_error_type |
814 | | bfd_get_error (void) |
815 | 37.3M | { |
816 | 37.3M | return bfd_error; |
817 | 37.3M | } |
818 | | |
819 | | /* |
820 | | FUNCTION |
821 | | bfd_set_error |
822 | | |
823 | | SYNOPSIS |
824 | | void bfd_set_error (bfd_error_type error_tag); |
825 | | |
826 | | DESCRIPTION |
827 | | Set the BFD error condition to be @var{error_tag}. |
828 | | |
829 | | @var{error_tag} must not be bfd_error_on_input. Use |
830 | | bfd_set_input_error for input errors instead. |
831 | | */ |
832 | | |
833 | | void |
834 | | bfd_set_error (bfd_error_type error_tag) |
835 | 498M | { |
836 | 498M | bfd_error = error_tag; |
837 | 498M | if (bfd_error >= bfd_error_on_input) |
838 | 0 | abort (); |
839 | 498M | } |
840 | | |
841 | | /* |
842 | | FUNCTION |
843 | | bfd_set_input_error |
844 | | |
845 | | SYNOPSIS |
846 | | void bfd_set_input_error (bfd *input, bfd_error_type error_tag); |
847 | | |
848 | | DESCRIPTION |
849 | | |
850 | | Set the BFD error condition to be bfd_error_on_input. |
851 | | @var{input} is the input bfd where the error occurred, and |
852 | | @var{error_tag} the bfd_error_type error. |
853 | | */ |
854 | | |
855 | | void |
856 | | bfd_set_input_error (bfd *input, bfd_error_type error_tag) |
857 | 0 | { |
858 | | /* This is an error that occurred during bfd_close when writing an |
859 | | archive, but on one of the input files. */ |
860 | 0 | bfd_error = bfd_error_on_input; |
861 | 0 | _bfd_clear_error_data (); |
862 | 0 | input_bfd = input; |
863 | 0 | input_error = error_tag; |
864 | 0 | if (input_error >= bfd_error_on_input) |
865 | 0 | abort (); |
866 | 0 | } |
867 | | |
868 | | /* |
869 | | FUNCTION |
870 | | bfd_errmsg |
871 | | |
872 | | SYNOPSIS |
873 | | const char *bfd_errmsg (bfd_error_type error_tag); |
874 | | |
875 | | DESCRIPTION |
876 | | Return a string describing the error @var{error_tag}, or |
877 | | the system error if @var{error_tag} is <<bfd_error_system_call>>. |
878 | | */ |
879 | | |
880 | | const char * |
881 | | bfd_errmsg (bfd_error_type error_tag) |
882 | 1.36M | { |
883 | | #ifndef errno |
884 | | extern int errno; |
885 | | #endif |
886 | 1.36M | if (error_tag == bfd_error_on_input) |
887 | 0 | { |
888 | 0 | const char *msg = bfd_errmsg (input_error); |
889 | 0 | char *ret = bfd_asprintf (_(bfd_errmsgs[error_tag]), |
890 | 0 | bfd_get_filename (input_bfd), msg); |
891 | 0 | if (ret) |
892 | 0 | return ret; |
893 | | |
894 | | /* Ick, what to do on out of memory? */ |
895 | 0 | return msg; |
896 | 0 | } |
897 | | |
898 | 1.36M | if (error_tag == bfd_error_system_call) |
899 | 16 | return xstrerror (errno); |
900 | | |
901 | 1.36M | if (error_tag > bfd_error_invalid_error_code) |
902 | 0 | error_tag = bfd_error_invalid_error_code; /* sanity check */ |
903 | | |
904 | 1.36M | return _(bfd_errmsgs[error_tag]); |
905 | 1.36M | } |
906 | | |
907 | | /* |
908 | | FUNCTION |
909 | | bfd_perror |
910 | | |
911 | | SYNOPSIS |
912 | | void bfd_perror (const char *message); |
913 | | |
914 | | DESCRIPTION |
915 | | Print to the standard error stream a string describing the |
916 | | last BFD error that occurred, or the last system error if |
917 | | the last BFD error was a system call failure. If @var{message} |
918 | | is non-NULL and non-empty, the error string printed is preceded |
919 | | by @var{message}, a colon, and a space. It is followed by a newline. |
920 | | */ |
921 | | |
922 | | void |
923 | | bfd_perror (const char *message) |
924 | 0 | { |
925 | 0 | fflush (stdout); |
926 | 0 | if (message == NULL || *message == '\0') |
927 | 0 | fprintf (stderr, "%s\n", bfd_errmsg (bfd_get_error ())); |
928 | 0 | else |
929 | 0 | fprintf (stderr, "%s: %s\n", message, bfd_errmsg (bfd_get_error ())); |
930 | 0 | fflush (stderr); |
931 | 0 | } |
932 | | |
933 | | /* |
934 | | INTERNAL_FUNCTION |
935 | | _bfd_clear_error_data |
936 | | |
937 | | SYNOPSIS |
938 | | void _bfd_clear_error_data (void); |
939 | | |
940 | | DESCRIPTION |
941 | | Free any data associated with the BFD error. |
942 | | */ |
943 | | |
944 | | void |
945 | | _bfd_clear_error_data (void) |
946 | 1.76M | { |
947 | 1.76M | free (_bfd_error_buf); |
948 | 1.76M | _bfd_error_buf = NULL; |
949 | 1.76M | } |
950 | | |
951 | | /* |
952 | | INTERNAL_FUNCTION |
953 | | bfd_asprintf |
954 | | |
955 | | SYNOPSIS |
956 | | char *bfd_asprintf (const char *fmt, ...); |
957 | | |
958 | | DESCRIPTION |
959 | | Primarily for error reporting, this function is like |
960 | | libiberty's xasprintf except that it can return NULL on no |
961 | | memory and the returned string should not be freed. Uses a |
962 | | thread-local malloc'd buffer managed by libbfd, _bfd_error_buf. |
963 | | Be aware that a call to this function frees the result of any |
964 | | previous call. bfd_errmsg (bfd_error_on_input) also calls |
965 | | this function. |
966 | | */ |
967 | | |
968 | | char * |
969 | | bfd_asprintf (const char *fmt, ...) |
970 | 3 | { |
971 | 3 | free (_bfd_error_buf); |
972 | 3 | _bfd_error_buf = NULL; |
973 | 3 | va_list ap; |
974 | 3 | va_start (ap, fmt); |
975 | 3 | int count = vasprintf (&_bfd_error_buf, fmt, ap); |
976 | 3 | va_end (ap); |
977 | 3 | if (count == -1) |
978 | 0 | { |
979 | 0 | bfd_set_error (bfd_error_no_memory); |
980 | 0 | _bfd_error_buf = NULL; |
981 | 0 | } |
982 | 3 | return _bfd_error_buf; |
983 | 3 | } |
984 | | |
985 | | /* |
986 | | SUBSECTION |
987 | | BFD error handler |
988 | | |
989 | | Some BFD functions want to print messages describing the |
990 | | problem. They call a BFD error handler function. This |
991 | | function may be overridden by the program. |
992 | | |
993 | | The BFD error handler acts like vprintf. |
994 | | |
995 | | CODE_FRAGMENT |
996 | | .typedef void (*bfd_error_handler_type) (const char *, va_list); |
997 | | . |
998 | | */ |
999 | | |
1000 | | /* The program name used when printing BFD error messages. */ |
1001 | | |
1002 | | static const char *_bfd_error_program_name; |
1003 | | |
1004 | | /* Support for positional parameters. */ |
1005 | | |
1006 | | union _bfd_doprnt_args |
1007 | | { |
1008 | | int i; |
1009 | | long l; |
1010 | | long long ll; |
1011 | | double d; |
1012 | | long double ld; |
1013 | | void *p; |
1014 | | enum |
1015 | | { |
1016 | | Bad, |
1017 | | Int, |
1018 | | Long, |
1019 | | LongLong, |
1020 | | Double, |
1021 | | LongDouble, |
1022 | | Ptr |
1023 | | } type; |
1024 | | }; |
1025 | | |
1026 | | /* Maximum number of _bfd_error_handler args. Don't increase this |
1027 | | without changing the code handling positional parameters. */ |
1028 | 213M | #define MAX_ARGS 9 |
1029 | | |
1030 | | /* This macro and _bfd_doprnt taken from libiberty _doprnt.c, tidied a |
1031 | | little and extended to handle '%pA', '%pB' and positional parameters. */ |
1032 | | |
1033 | | #define PRINT_TYPE(TYPE, FIELD) \ |
1034 | 23.9M | do \ |
1035 | 23.9M | { \ |
1036 | 23.9M | TYPE value = (TYPE) args[arg_no].FIELD; \ |
1037 | 23.9M | result = print (stream, specifier, value); \ |
1038 | 23.9M | } while (0) |
1039 | | |
1040 | | /* |
1041 | | CODE_FRAGMENT |
1042 | | .typedef int (*bfd_print_callback) (void *, const char *, ...); |
1043 | | */ |
1044 | | |
1045 | | static int |
1046 | | _bfd_doprnt (bfd_print_callback print, void *stream, const char *format, |
1047 | | union _bfd_doprnt_args *args) |
1048 | 17.3M | { |
1049 | 17.3M | const char *ptr = format; |
1050 | 17.3M | char specifier[128]; |
1051 | 17.3M | int total_printed = 0; |
1052 | 17.3M | unsigned int arg_count = 0; |
1053 | | |
1054 | 87.6M | while (*ptr != '\0') |
1055 | 70.2M | { |
1056 | 70.2M | int result; |
1057 | | |
1058 | 70.2M | if (*ptr != '%') |
1059 | 30.8M | { |
1060 | | /* While we have regular characters, print them. */ |
1061 | 30.8M | char *end = strchr (ptr, '%'); |
1062 | 30.8M | if (end != NULL) |
1063 | 25.9M | result = print (stream, "%.*s", (int) (end - ptr), ptr); |
1064 | 4.86M | else |
1065 | 4.86M | result = print (stream, "%s", ptr); |
1066 | 30.8M | ptr += result; |
1067 | 30.8M | } |
1068 | 39.4M | else if (ptr[1] == '%') |
1069 | 0 | { |
1070 | 0 | print (stream, "%%"); |
1071 | 0 | result = 1; |
1072 | 0 | ptr += 2; |
1073 | 0 | } |
1074 | 39.4M | else |
1075 | 39.4M | { |
1076 | | /* We have a format specifier! */ |
1077 | 39.4M | char *sptr = specifier; |
1078 | 39.4M | int wide_width = 0, short_width = 0; |
1079 | 39.4M | unsigned int arg_no; |
1080 | | |
1081 | | /* Copy the % and move forward. */ |
1082 | 39.4M | *sptr++ = *ptr++; |
1083 | | |
1084 | | /* Check for a positional parameter. */ |
1085 | 39.4M | arg_no = -1u; |
1086 | 39.4M | if (*ptr != '0' && ISDIGIT (*ptr) && ptr[1] == '$') |
1087 | 0 | { |
1088 | 0 | arg_no = *ptr - '1'; |
1089 | 0 | ptr += 2; |
1090 | 0 | } |
1091 | | |
1092 | | /* Move past flags. */ |
1093 | 51.7M | while (strchr ("-+ #0'I", *ptr)) |
1094 | 12.3M | *sptr++ = *ptr++; |
1095 | | |
1096 | 39.4M | if (*ptr == '*') |
1097 | 0 | { |
1098 | 0 | int value; |
1099 | 0 | unsigned int arg_index; |
1100 | |
|
1101 | 0 | ptr++; |
1102 | 0 | arg_index = arg_count; |
1103 | 0 | if (*ptr != '0' && ISDIGIT (*ptr) && ptr[1] == '$') |
1104 | 0 | { |
1105 | 0 | arg_index = *ptr - '1'; |
1106 | 0 | ptr += 2; |
1107 | 0 | } |
1108 | 0 | value = abs (args[arg_index].i); |
1109 | 0 | arg_count++; |
1110 | 0 | sptr += sprintf (sptr, "%d", value); |
1111 | 0 | } |
1112 | 39.4M | else |
1113 | | /* Handle explicit numeric value. */ |
1114 | 39.4M | while (ISDIGIT (*ptr)) |
1115 | 1.68M | *sptr++ = *ptr++; |
1116 | | |
1117 | | /* Precision. */ |
1118 | 39.4M | if (*ptr == '.') |
1119 | 0 | { |
1120 | | /* Copy and go past the period. */ |
1121 | 0 | *sptr++ = *ptr++; |
1122 | 0 | if (*ptr == '*') |
1123 | 0 | { |
1124 | 0 | int value; |
1125 | 0 | unsigned int arg_index; |
1126 | |
|
1127 | 0 | ptr++; |
1128 | 0 | arg_index = arg_count; |
1129 | 0 | if (*ptr != '0' && ISDIGIT (*ptr) && ptr[1] == '$') |
1130 | 0 | { |
1131 | 0 | arg_index = *ptr - '1'; |
1132 | 0 | ptr += 2; |
1133 | 0 | } |
1134 | 0 | value = abs (args[arg_index].i); |
1135 | 0 | arg_count++; |
1136 | 0 | sptr += sprintf (sptr, "%d", value); |
1137 | 0 | } |
1138 | 0 | else |
1139 | | /* Handle explicit numeric value. */ |
1140 | 0 | while (ISDIGIT (*ptr)) |
1141 | 0 | *sptr++ = *ptr++; |
1142 | 0 | } |
1143 | 47.7M | while (strchr ("hlL", *ptr)) |
1144 | 8.34M | { |
1145 | 8.34M | switch (*ptr) |
1146 | 8.34M | { |
1147 | 0 | case 'h': |
1148 | 0 | short_width = 1; |
1149 | 0 | break; |
1150 | 8.34M | case 'l': |
1151 | 8.34M | wide_width++; |
1152 | 8.34M | break; |
1153 | 0 | case 'L': |
1154 | 0 | wide_width = 2; |
1155 | 0 | break; |
1156 | 0 | default: |
1157 | 0 | abort(); |
1158 | 8.34M | } |
1159 | 8.34M | *sptr++ = *ptr++; |
1160 | 8.34M | } |
1161 | | |
1162 | | /* Copy the type specifier, and NULL terminate. */ |
1163 | 39.4M | *sptr++ = *ptr++; |
1164 | 39.4M | *sptr = '\0'; |
1165 | 39.4M | if ((int) arg_no < 0) |
1166 | 39.4M | arg_no = arg_count; |
1167 | | |
1168 | 39.4M | switch (ptr[-1]) |
1169 | 39.4M | { |
1170 | 2.26M | case 'd': |
1171 | 2.26M | case 'i': |
1172 | 2.26M | case 'o': |
1173 | 5.86M | case 'u': |
1174 | 17.6M | case 'x': |
1175 | 19.2M | case 'X': |
1176 | 19.2M | case 'c': |
1177 | 19.2M | { |
1178 | | /* Short values are promoted to int, so just copy it |
1179 | | as an int and trust the C library printf to cast it |
1180 | | to the right width. */ |
1181 | 19.2M | if (short_width) |
1182 | 0 | PRINT_TYPE (int, i); |
1183 | 19.2M | else |
1184 | 19.2M | { |
1185 | 19.2M | switch (wide_width) |
1186 | 19.2M | { |
1187 | 10.9M | case 0: |
1188 | 10.9M | PRINT_TYPE (int, i); |
1189 | 10.9M | break; |
1190 | 8.34M | case 1: |
1191 | 8.34M | PRINT_TYPE (long, l); |
1192 | 8.34M | break; |
1193 | 115 | case 2: |
1194 | 115 | default: |
1195 | | #if defined (__MSVCRT__) |
1196 | | sptr[-3] = 'I'; |
1197 | | sptr[-2] = '6'; |
1198 | | sptr[-1] = '4'; |
1199 | | *sptr++ = ptr[-1]; |
1200 | | *sptr = '\0'; |
1201 | | #endif |
1202 | 115 | PRINT_TYPE (long long, ll); |
1203 | 115 | break; |
1204 | 19.2M | } |
1205 | 19.2M | } |
1206 | 19.2M | } |
1207 | 19.2M | break; |
1208 | 19.2M | case 'f': |
1209 | 0 | case 'e': |
1210 | 0 | case 'E': |
1211 | 0 | case 'g': |
1212 | 0 | case 'G': |
1213 | 0 | { |
1214 | 0 | if (wide_width == 0) |
1215 | 0 | PRINT_TYPE (double, d); |
1216 | 0 | else |
1217 | 0 | PRINT_TYPE (long double, ld); |
1218 | 0 | } |
1219 | 0 | break; |
1220 | 4.67M | case 's': |
1221 | 4.67M | PRINT_TYPE (char *, p); |
1222 | 4.67M | break; |
1223 | 15.4M | case 'p': |
1224 | 15.4M | if (*ptr == 'A') |
1225 | 1.09M | { |
1226 | 1.09M | asection *sec; |
1227 | 1.09M | bfd *abfd; |
1228 | 1.09M | const char *group = NULL; |
1229 | 1.09M | struct coff_comdat_info *ci; |
1230 | | |
1231 | 1.09M | ptr++; |
1232 | 1.09M | sec = (asection *) args[arg_no].p; |
1233 | 1.09M | if (sec == NULL) |
1234 | | /* Invoking %pA with a null section pointer is an |
1235 | | internal error. */ |
1236 | 0 | abort (); |
1237 | 1.09M | abfd = sec->owner; |
1238 | 1.09M | if (abfd != NULL |
1239 | 1.09M | && bfd_get_flavour (abfd) == bfd_target_elf_flavour |
1240 | 1.09M | && elf_next_in_group (sec) != NULL |
1241 | 1.09M | && (sec->flags & SEC_GROUP) == 0) |
1242 | 10.7k | group = elf_group_name (sec); |
1243 | 1.08M | else if (abfd != NULL |
1244 | 1.08M | && bfd_get_flavour (abfd) == bfd_target_coff_flavour |
1245 | 1.08M | && (ci = bfd_coff_get_comdat_section (sec->owner, |
1246 | 484k | sec)) != NULL) |
1247 | 127 | group = ci->name; |
1248 | 1.09M | if (group != NULL) |
1249 | 10.8k | result = print (stream, "%s[%s]", sec->name, group); |
1250 | 1.08M | else |
1251 | 1.08M | result = print (stream, "%s", sec->name); |
1252 | 1.09M | } |
1253 | 14.3M | else if (*ptr == 'B') |
1254 | 14.3M | { |
1255 | 14.3M | bfd *abfd; |
1256 | | |
1257 | 14.3M | ptr++; |
1258 | 14.3M | abfd = (bfd *) args[arg_no].p; |
1259 | 14.3M | if (abfd == NULL) |
1260 | | /* Invoking %pB with a null bfd pointer is an |
1261 | | internal error. */ |
1262 | 0 | abort (); |
1263 | 14.3M | else if (abfd->my_archive |
1264 | 14.3M | && !bfd_is_thin_archive (abfd->my_archive)) |
1265 | 218k | result = print (stream, "%s(%s)", |
1266 | 218k | bfd_get_filename (abfd->my_archive), |
1267 | 218k | bfd_get_filename (abfd)); |
1268 | 14.1M | else |
1269 | 14.1M | result = print (stream, "%s", bfd_get_filename (abfd)); |
1270 | 14.3M | } |
1271 | 0 | else |
1272 | 0 | PRINT_TYPE (void *, p); |
1273 | 15.4M | break; |
1274 | 15.4M | default: |
1275 | 0 | abort(); |
1276 | 39.4M | } |
1277 | 39.4M | arg_count++; |
1278 | 39.4M | } |
1279 | 70.2M | if (result == -1) |
1280 | 0 | return -1; |
1281 | 70.2M | total_printed += result; |
1282 | 70.2M | } |
1283 | | |
1284 | 17.3M | return total_printed; |
1285 | 17.3M | } |
1286 | | |
1287 | | /* First pass over FORMAT to gather ARGS. Returns number of args. */ |
1288 | | |
1289 | | static unsigned int |
1290 | | _bfd_doprnt_scan (const char *format, va_list ap, union _bfd_doprnt_args *args) |
1291 | 17.3M | { |
1292 | 17.3M | const char *ptr = format; |
1293 | 17.3M | unsigned int arg_count = 0; |
1294 | | |
1295 | 173M | for (unsigned int i = 0; i < MAX_ARGS; i++) |
1296 | 156M | args[i].type = Bad; |
1297 | | |
1298 | 82.7M | while (*ptr != '\0') |
1299 | 70.2M | { |
1300 | 70.2M | if (*ptr != '%') |
1301 | 30.8M | { |
1302 | 30.8M | ptr = strchr (ptr, '%'); |
1303 | 30.8M | if (ptr == NULL) |
1304 | 4.86M | break; |
1305 | 30.8M | } |
1306 | 39.4M | else if (ptr[1] == '%') |
1307 | 0 | ptr += 2; |
1308 | 39.4M | else |
1309 | 39.4M | { |
1310 | 39.4M | int wide_width = 0, short_width = 0; |
1311 | 39.4M | unsigned int arg_no; |
1312 | 39.4M | int arg_type; |
1313 | | |
1314 | 39.4M | ptr++; |
1315 | | |
1316 | | /* Check for a positional parameter. */ |
1317 | 39.4M | arg_no = -1u; |
1318 | 39.4M | if (*ptr != '0' && ISDIGIT (*ptr) && ptr[1] == '$') |
1319 | 0 | { |
1320 | 0 | arg_no = *ptr - '1'; |
1321 | 0 | ptr += 2; |
1322 | 0 | } |
1323 | | |
1324 | | /* Move past flags. */ |
1325 | 51.7M | while (strchr ("-+ #0'I", *ptr)) |
1326 | 12.3M | ptr++; |
1327 | | |
1328 | 39.4M | if (*ptr == '*') |
1329 | 0 | { |
1330 | 0 | unsigned int arg_index; |
1331 | |
|
1332 | 0 | ptr++; |
1333 | 0 | arg_index = arg_count; |
1334 | 0 | if (*ptr != '0' && ISDIGIT (*ptr) && ptr[1] == '$') |
1335 | 0 | { |
1336 | 0 | arg_index = *ptr - '1'; |
1337 | 0 | ptr += 2; |
1338 | 0 | } |
1339 | 0 | if (arg_index >= MAX_ARGS) |
1340 | 0 | abort (); |
1341 | 0 | args[arg_index].type = Int; |
1342 | 0 | arg_count++; |
1343 | 0 | } |
1344 | 39.4M | else |
1345 | | /* Handle explicit numeric value. */ |
1346 | 39.4M | while (ISDIGIT (*ptr)) |
1347 | 1.68M | ptr++; |
1348 | | |
1349 | | /* Precision. */ |
1350 | 39.4M | if (*ptr == '.') |
1351 | 0 | { |
1352 | 0 | ptr++; |
1353 | 0 | if (*ptr == '*') |
1354 | 0 | { |
1355 | 0 | unsigned int arg_index; |
1356 | |
|
1357 | 0 | ptr++; |
1358 | 0 | arg_index = arg_count; |
1359 | 0 | if (*ptr != '0' && ISDIGIT (*ptr) && ptr[1] == '$') |
1360 | 0 | { |
1361 | 0 | arg_index = *ptr - '1'; |
1362 | 0 | ptr += 2; |
1363 | 0 | } |
1364 | 0 | if (arg_index >= MAX_ARGS) |
1365 | 0 | abort (); |
1366 | 0 | args[arg_index].type = Int; |
1367 | 0 | arg_count++; |
1368 | 0 | } |
1369 | 0 | else |
1370 | | /* Handle explicit numeric value. */ |
1371 | 0 | while (ISDIGIT (*ptr)) |
1372 | 0 | ptr++; |
1373 | 0 | } |
1374 | 47.7M | while (strchr ("hlL", *ptr)) |
1375 | 8.34M | { |
1376 | 8.34M | switch (*ptr) |
1377 | 8.34M | { |
1378 | 0 | case 'h': |
1379 | 0 | short_width = 1; |
1380 | 0 | break; |
1381 | 8.34M | case 'l': |
1382 | 8.34M | wide_width++; |
1383 | 8.34M | break; |
1384 | 0 | case 'L': |
1385 | 0 | wide_width = 2; |
1386 | 0 | break; |
1387 | 0 | default: |
1388 | 0 | abort(); |
1389 | 8.34M | } |
1390 | 8.34M | ptr++; |
1391 | 8.34M | } |
1392 | | |
1393 | 39.4M | ptr++; |
1394 | 39.4M | if ((int) arg_no < 0) |
1395 | 39.4M | arg_no = arg_count; |
1396 | | |
1397 | 39.4M | arg_type = Bad; |
1398 | 39.4M | switch (ptr[-1]) |
1399 | 39.4M | { |
1400 | 2.26M | case 'd': |
1401 | 2.26M | case 'i': |
1402 | 2.26M | case 'o': |
1403 | 5.86M | case 'u': |
1404 | 17.6M | case 'x': |
1405 | 19.2M | case 'X': |
1406 | 19.2M | case 'c': |
1407 | 19.2M | { |
1408 | 19.2M | if (short_width) |
1409 | 0 | arg_type = Int; |
1410 | 19.2M | else |
1411 | 19.2M | { |
1412 | 19.2M | switch (wide_width) |
1413 | 19.2M | { |
1414 | 10.9M | case 0: |
1415 | 10.9M | arg_type = Int; |
1416 | 10.9M | break; |
1417 | 8.34M | case 1: |
1418 | 8.34M | arg_type = Long; |
1419 | 8.34M | break; |
1420 | 115 | case 2: |
1421 | 115 | default: |
1422 | 115 | arg_type = LongLong; |
1423 | 115 | break; |
1424 | 19.2M | } |
1425 | 19.2M | } |
1426 | 19.2M | } |
1427 | 19.2M | break; |
1428 | 19.2M | case 'f': |
1429 | 0 | case 'e': |
1430 | 0 | case 'E': |
1431 | 0 | case 'g': |
1432 | 0 | case 'G': |
1433 | 0 | { |
1434 | 0 | if (wide_width == 0) |
1435 | 0 | arg_type = Double; |
1436 | 0 | else |
1437 | 0 | arg_type = LongDouble; |
1438 | 0 | } |
1439 | 0 | break; |
1440 | 4.67M | case 's': |
1441 | 4.67M | arg_type = Ptr; |
1442 | 4.67M | break; |
1443 | 15.4M | case 'p': |
1444 | 15.4M | if (*ptr == 'A' || *ptr == 'B') |
1445 | 15.4M | ptr++; |
1446 | 15.4M | arg_type = Ptr; |
1447 | 15.4M | break; |
1448 | 0 | default: |
1449 | 0 | abort(); |
1450 | 39.4M | } |
1451 | | |
1452 | 39.4M | if (arg_no >= MAX_ARGS) |
1453 | 0 | abort (); |
1454 | 39.4M | args[arg_no].type = arg_type; |
1455 | 39.4M | arg_count++; |
1456 | 39.4M | } |
1457 | 70.2M | } |
1458 | | |
1459 | 56.7M | for (unsigned int i = 0; i < arg_count; i++) |
1460 | 39.4M | { |
1461 | 39.4M | switch (args[i].type) |
1462 | 39.4M | { |
1463 | 10.9M | case Int: |
1464 | 10.9M | args[i].i = va_arg (ap, int); |
1465 | 10.9M | break; |
1466 | 8.34M | case Long: |
1467 | 8.34M | args[i].l = va_arg (ap, long); |
1468 | 8.34M | break; |
1469 | 115 | case LongLong: |
1470 | 115 | args[i].ll = va_arg (ap, long long); |
1471 | 115 | break; |
1472 | 0 | case Double: |
1473 | 0 | args[i].d = va_arg (ap, double); |
1474 | 0 | break; |
1475 | 0 | case LongDouble: |
1476 | 0 | args[i].ld = va_arg (ap, long double); |
1477 | 0 | break; |
1478 | 20.1M | case Ptr: |
1479 | 20.1M | args[i].p = va_arg (ap, void *); |
1480 | 20.1M | break; |
1481 | 0 | default: |
1482 | 0 | abort (); |
1483 | 39.4M | } |
1484 | 39.4M | } |
1485 | | |
1486 | 17.3M | return arg_count; |
1487 | 17.3M | } |
1488 | | |
1489 | | static void |
1490 | | _bfd_print (bfd_print_callback print_func, void *stream, |
1491 | | const char *fmt, va_list ap) |
1492 | 17.3M | { |
1493 | 17.3M | union _bfd_doprnt_args args[MAX_ARGS]; |
1494 | | |
1495 | 17.3M | _bfd_doprnt_scan (fmt, ap, args); |
1496 | 17.3M | _bfd_doprnt (print_func, stream, fmt, args); |
1497 | 17.3M | } |
1498 | | |
1499 | | /* |
1500 | | FUNCTION |
1501 | | bfd_print_error |
1502 | | |
1503 | | SYNOPSIS |
1504 | | void bfd_print_error (bfd_print_callback print_func, |
1505 | | void *stream, const char *fmt, va_list ap); |
1506 | | |
1507 | | DESCRIPTION |
1508 | | |
1509 | | This formats FMT and AP according to BFD "printf" rules, |
1510 | | sending the output to STREAM by repeated calls to PRINT_FUNC. |
1511 | | PRINT_FUNC is a printf-like function; it does not need to |
1512 | | implement the BFD printf format extensions. This can be used |
1513 | | in a callback that is set via bfd_set_error_handler to turn |
1514 | | the error into ordinary output. |
1515 | | */ |
1516 | | |
1517 | | void |
1518 | | bfd_print_error (bfd_print_callback print_func, void *stream, |
1519 | | const char *fmt, va_list ap) |
1520 | 12.9M | { |
1521 | 12.9M | print_func (stream, "%s: ", _bfd_get_error_program_name ()); |
1522 | 12.9M | _bfd_print (print_func, stream, fmt, ap); |
1523 | 12.9M | } |
1524 | | |
1525 | | /* The standard error handler that prints to stderr. */ |
1526 | | |
1527 | | static void |
1528 | | error_handler_fprintf (const char *fmt, va_list ap) |
1529 | 12.9M | { |
1530 | | /* PR 4992: Don't interrupt output being sent to stdout. */ |
1531 | 12.9M | fflush (stdout); |
1532 | | |
1533 | 12.9M | bfd_print_error ((bfd_print_callback) fprintf, stderr, fmt, ap); |
1534 | | |
1535 | | /* On AIX, putc is implemented as a macro that triggers a -Wunused-value |
1536 | | warning, so use the fputc function to avoid it. */ |
1537 | 12.9M | fputc ('\n', stderr); |
1538 | 12.9M | fflush (stderr); |
1539 | 12.9M | } |
1540 | | |
1541 | | /* Control printing to a string buffer. */ |
1542 | | struct buf_stream |
1543 | | { |
1544 | | char *ptr; |
1545 | | int left; |
1546 | | }; |
1547 | | |
1548 | | /* An fprintf like function that instead prints to a string buffer. */ |
1549 | | |
1550 | | static int |
1551 | | err_sprintf (void *stream, const char *fmt, ...) |
1552 | 15.4M | { |
1553 | 15.4M | struct buf_stream *s = stream; |
1554 | 15.4M | va_list ap; |
1555 | | |
1556 | 15.4M | va_start (ap, fmt); |
1557 | 15.4M | int total = vsnprintf (s->ptr, s->left, fmt, ap); |
1558 | 15.4M | va_end (ap); |
1559 | 15.4M | if (total < 0) |
1560 | 0 | ; |
1561 | 15.4M | else if (total > s->left) |
1562 | 2.37k | { |
1563 | 2.37k | s->ptr += s->left; |
1564 | 2.37k | s->left = 0; |
1565 | 2.37k | } |
1566 | 15.4M | else |
1567 | 15.4M | { |
1568 | 15.4M | s->ptr += total; |
1569 | 15.4M | s->left -= total; |
1570 | 15.4M | } |
1571 | 15.4M | return total; |
1572 | 15.4M | } |
1573 | | |
1574 | | /* |
1575 | | INTERNAL |
1576 | | .{* Cached _bfd_check_format messages are put in this. *} |
1577 | | .struct per_xvec_message |
1578 | | .{ |
1579 | | . struct per_xvec_message *next; |
1580 | | . char message[]; |
1581 | | .}; |
1582 | | . |
1583 | | .{* A list of per_xvec_message objects. The targ field indicates |
1584 | | . which xvec this list holds; PER_XVEC_NO_TARGET is only set for the |
1585 | | . root of the list and indicates that the entry isn't yet used. The |
1586 | | . abfd field is only needed in the root entry of the list. *} |
1587 | | .struct per_xvec_messages |
1588 | | .{ |
1589 | | . bfd *abfd; |
1590 | | . const bfd_target *targ; |
1591 | | . struct per_xvec_message *messages; |
1592 | | . struct per_xvec_messages *next; |
1593 | | .}; |
1594 | | . |
1595 | | .#define PER_XVEC_NO_TARGET ((const bfd_target *) -1) |
1596 | | */ |
1597 | | |
1598 | | /* Helper function to find or allocate the correct per-xvec object |
1599 | | when emitting a message. */ |
1600 | | |
1601 | | static struct per_xvec_message * |
1602 | | _bfd_per_xvec_warn (struct per_xvec_messages *messages, size_t alloc) |
1603 | 4.48M | { |
1604 | 4.48M | const bfd_target *targ = messages->abfd->xvec; |
1605 | | |
1606 | 4.48M | struct per_xvec_messages *prev = NULL; |
1607 | 4.48M | struct per_xvec_messages *iter = messages; |
1608 | | |
1609 | 4.48M | if (iter->targ == PER_XVEC_NO_TARGET) |
1610 | 49.3k | iter->targ = targ; |
1611 | 4.43M | else |
1612 | 6.28M | for (; iter != NULL; iter = iter->next) |
1613 | 6.25M | { |
1614 | 6.25M | if (iter->targ == targ) |
1615 | 4.40M | break; |
1616 | 1.85M | prev = iter; |
1617 | 1.85M | } |
1618 | | |
1619 | 4.48M | if (iter == NULL) |
1620 | 29.8k | { |
1621 | 29.8k | iter = bfd_malloc (sizeof (*iter)); |
1622 | 29.8k | if (iter == NULL) |
1623 | 0 | return NULL; |
1624 | 29.8k | iter->abfd = messages->abfd; |
1625 | 29.8k | iter->targ = targ; |
1626 | 29.8k | iter->messages = NULL; |
1627 | 29.8k | iter->next = NULL; |
1628 | 29.8k | prev->next = iter; |
1629 | 29.8k | } |
1630 | | |
1631 | 4.48M | struct per_xvec_message **m = &iter->messages; |
1632 | 4.48M | int count = 0; |
1633 | 26.1M | while (*m) |
1634 | 21.6M | { |
1635 | 21.6M | m = &(*m)->next; |
1636 | 21.6M | count++; |
1637 | 21.6M | } |
1638 | | /* Anti-fuzzer measure. Don't cache more than 5 messages. */ |
1639 | 4.48M | if (count < 5) |
1640 | 205k | { |
1641 | 205k | *m = bfd_malloc (sizeof (**m) + alloc); |
1642 | 205k | if (*m != NULL) |
1643 | 205k | (*m)->next = NULL; |
1644 | 205k | } |
1645 | 4.48M | return *m; |
1646 | 4.48M | } |
1647 | | |
1648 | | /* Communicate the error-message container processed by |
1649 | | bfd_check_format_matches to the error handling function |
1650 | | error_handler_sprintf. When non-NULL, _bfd_error_handler will call |
1651 | | error_handler_sprintf; when NULL, _bfd_error_internal will be used |
1652 | | instead. */ |
1653 | | |
1654 | | static TLS struct per_xvec_messages *error_handler_messages; |
1655 | | |
1656 | | /* A special value for error_handler_messages that indicates that the |
1657 | | error should simply be ignored. */ |
1658 | 29.3M | #define IGNORE_ERROR_MESSAGES ((struct per_xvec_messages *) -1) |
1659 | | |
1660 | | /* An error handler that prints to a string, then dups that string to |
1661 | | a per-xvec cache. */ |
1662 | | |
1663 | | static void |
1664 | | error_handler_sprintf (const char *fmt, va_list ap) |
1665 | 4.48M | { |
1666 | 4.48M | char error_buf[1024]; |
1667 | 4.48M | struct buf_stream error_stream; |
1668 | | |
1669 | 4.48M | error_stream.ptr = error_buf; |
1670 | 4.48M | error_stream.left = sizeof (error_buf); |
1671 | | |
1672 | 4.48M | _bfd_print (err_sprintf, &error_stream, fmt, ap); |
1673 | | |
1674 | 4.48M | size_t len = error_stream.ptr - error_buf; |
1675 | 4.48M | struct per_xvec_message *warn |
1676 | 4.48M | = _bfd_per_xvec_warn (error_handler_messages, len + 1); |
1677 | 4.48M | if (warn) |
1678 | 205k | { |
1679 | 205k | memcpy (warn->message, error_buf, len); |
1680 | 205k | warn->message[len] = 0; |
1681 | 205k | } |
1682 | 4.48M | } |
1683 | | |
1684 | | /* This is a function pointer to the routine which should handle BFD |
1685 | | error messages. It is called when a BFD routine encounters an |
1686 | | error for which it wants to print a message. Going through a |
1687 | | function pointer permits a program linked against BFD to intercept |
1688 | | the messages and deal with them itself. */ |
1689 | | |
1690 | | static bfd_error_handler_type _bfd_error_internal = error_handler_fprintf; |
1691 | | |
1692 | | /* |
1693 | | FUNCTION |
1694 | | _bfd_error_handler |
1695 | | |
1696 | | SYNOPSIS |
1697 | | void _bfd_error_handler (const char *fmt, ...) ATTRIBUTE_PRINTF_1; |
1698 | | |
1699 | | DESCRIPTION |
1700 | | This is the default routine to handle BFD error messages. |
1701 | | Like fprintf (stderr, ...), but also handles some extra format |
1702 | | specifiers. |
1703 | | |
1704 | | %pA section name from section. For group components, prints |
1705 | | group name too. |
1706 | | %pB file name from bfd. For archive components, prints |
1707 | | archive too. |
1708 | | |
1709 | | Beware: Only supports a maximum of 9 format arguments. |
1710 | | */ |
1711 | | |
1712 | | void |
1713 | | _bfd_error_handler (const char *fmt, ...) |
1714 | 27.7M | { |
1715 | 27.7M | va_list ap; |
1716 | | |
1717 | 27.7M | va_start (ap, fmt); |
1718 | 27.7M | if (error_handler_messages == IGNORE_ERROR_MESSAGES) |
1719 | 10.3M | { |
1720 | | /* Nothing. */ |
1721 | 10.3M | } |
1722 | 17.3M | else if (error_handler_messages != NULL) |
1723 | 4.48M | error_handler_sprintf (fmt, ap); |
1724 | 12.9M | else |
1725 | 12.9M | _bfd_error_internal (fmt, ap); |
1726 | 27.7M | va_end (ap); |
1727 | 27.7M | } |
1728 | | |
1729 | | /* |
1730 | | FUNCTION |
1731 | | bfd_set_error_handler |
1732 | | |
1733 | | SYNOPSIS |
1734 | | bfd_error_handler_type bfd_set_error_handler (bfd_error_handler_type); |
1735 | | |
1736 | | DESCRIPTION |
1737 | | Set the BFD error handler function. Returns the previous |
1738 | | function. |
1739 | | */ |
1740 | | |
1741 | | bfd_error_handler_type |
1742 | | bfd_set_error_handler (bfd_error_handler_type pnew) |
1743 | 1.54k | { |
1744 | 1.54k | bfd_error_handler_type pold; |
1745 | | |
1746 | 1.54k | pold = _bfd_error_internal; |
1747 | 1.54k | _bfd_error_internal = pnew; |
1748 | 1.54k | return pold; |
1749 | 1.54k | } |
1750 | | |
1751 | | /* |
1752 | | INTERNAL_FUNCTION |
1753 | | _bfd_set_error_handler_caching |
1754 | | |
1755 | | SYNOPSIS |
1756 | | struct per_xvec_messages *_bfd_set_error_handler_caching (struct per_xvec_messages *); |
1757 | | |
1758 | | DESCRIPTION |
1759 | | Set the BFD error handler function to one that stores messages |
1760 | | to the per_xvec_messages object. Returns the previous object |
1761 | | to which messages are stored. Note that two sequential calls |
1762 | | to this with a non-NULL argument will cause output to be |
1763 | | dropped, rather than gathered. |
1764 | | */ |
1765 | | |
1766 | | struct per_xvec_messages * |
1767 | | _bfd_set_error_handler_caching (struct per_xvec_messages *messages) |
1768 | 1.81M | { |
1769 | 1.81M | struct per_xvec_messages *old = error_handler_messages; |
1770 | 1.81M | if (old == NULL) |
1771 | 202k | error_handler_messages = messages; |
1772 | 1.61M | else |
1773 | 1.61M | error_handler_messages = IGNORE_ERROR_MESSAGES; |
1774 | 1.81M | return old; |
1775 | 1.81M | } |
1776 | | |
1777 | | /* |
1778 | | INTERNAL_FUNCTION |
1779 | | _bfd_restore_error_handler_caching |
1780 | | |
1781 | | SYNOPSIS |
1782 | | void _bfd_restore_error_handler_caching (struct per_xvec_messages *); |
1783 | | |
1784 | | DESCRIPTION |
1785 | | Reset the BFD error handler object to an earlier value. |
1786 | | */ |
1787 | | |
1788 | | void |
1789 | | _bfd_restore_error_handler_caching (struct per_xvec_messages *old) |
1790 | 1.81M | { |
1791 | 1.81M | error_handler_messages = old; |
1792 | 1.81M | } |
1793 | | |
1794 | | /* |
1795 | | FUNCTION |
1796 | | bfd_set_error_program_name |
1797 | | |
1798 | | SYNOPSIS |
1799 | | void bfd_set_error_program_name (const char *); |
1800 | | |
1801 | | DESCRIPTION |
1802 | | Set the program name to use when printing a BFD error. This |
1803 | | is printed before the error message followed by a colon and |
1804 | | space. The string must not be changed after it is passed to |
1805 | | this function. |
1806 | | */ |
1807 | | |
1808 | | void |
1809 | | bfd_set_error_program_name (const char *name) |
1810 | 736 | { |
1811 | 736 | _bfd_error_program_name = name; |
1812 | 736 | } |
1813 | | |
1814 | | /* |
1815 | | INTERNAL_FUNCTION |
1816 | | _bfd_get_error_program_name |
1817 | | |
1818 | | SYNOPSIS |
1819 | | const char *_bfd_get_error_program_name (void); |
1820 | | |
1821 | | DESCRIPTION |
1822 | | Get the program name used when printing a BFD error. |
1823 | | */ |
1824 | | |
1825 | | const char * |
1826 | | _bfd_get_error_program_name (void) |
1827 | 12.9M | { |
1828 | 12.9M | if (_bfd_error_program_name != NULL) |
1829 | 0 | return _bfd_error_program_name; |
1830 | 12.9M | return "BFD"; |
1831 | 12.9M | } |
1832 | | |
1833 | | /* |
1834 | | SUBSECTION |
1835 | | BFD assert handler |
1836 | | |
1837 | | If BFD finds an internal inconsistency, the bfd assert |
1838 | | handler is called with information on the BFD version, BFD |
1839 | | source file and line. If this happens, most programs linked |
1840 | | against BFD are expected to want to exit with an error, or mark |
1841 | | the current BFD operation as failed, so it is recommended to |
1842 | | override the default handler, which just calls |
1843 | | _bfd_error_handler and continues. |
1844 | | |
1845 | | CODE_FRAGMENT |
1846 | | .typedef void (*bfd_assert_handler_type) (const char *bfd_formatmsg, |
1847 | | . const char *bfd_version, |
1848 | | . const char *bfd_file, |
1849 | | . int bfd_line); |
1850 | | . |
1851 | | */ |
1852 | | |
1853 | | /* Note the use of bfd_ prefix on the parameter names above: we want to |
1854 | | show which one is the message and which is the version by naming the |
1855 | | parameters, but avoid polluting the program-using-bfd namespace as |
1856 | | the typedef is visible in the exported headers that the program |
1857 | | includes. Below, it's just for consistency. */ |
1858 | | |
1859 | | static void |
1860 | | _bfd_default_assert_handler (const char *bfd_formatmsg, |
1861 | | const char *bfd_version, |
1862 | | const char *bfd_file, |
1863 | | int bfd_line) |
1864 | | |
1865 | 147k | { |
1866 | 147k | _bfd_error_handler (bfd_formatmsg, bfd_version, bfd_file, bfd_line); |
1867 | 147k | } |
1868 | | |
1869 | | /* Similar to _bfd_error_handler, a program can decide to exit on an |
1870 | | internal BFD error. We use a non-variadic type to simplify passing |
1871 | | on parameters to other functions, e.g. _bfd_error_handler. */ |
1872 | | |
1873 | | static bfd_assert_handler_type _bfd_assert_handler = _bfd_default_assert_handler; |
1874 | | |
1875 | | /* |
1876 | | FUNCTION |
1877 | | bfd_set_assert_handler |
1878 | | |
1879 | | SYNOPSIS |
1880 | | bfd_assert_handler_type bfd_set_assert_handler (bfd_assert_handler_type); |
1881 | | |
1882 | | DESCRIPTION |
1883 | | Set the BFD assert handler function. Returns the previous |
1884 | | function. |
1885 | | */ |
1886 | | |
1887 | | bfd_assert_handler_type |
1888 | | bfd_set_assert_handler (bfd_assert_handler_type pnew) |
1889 | 0 | { |
1890 | 0 | bfd_assert_handler_type pold; |
1891 | |
|
1892 | 0 | pold = _bfd_assert_handler; |
1893 | 0 | _bfd_assert_handler = pnew; |
1894 | 0 | return pold; |
1895 | 0 | } |
1896 | | |
1897 | | /* |
1898 | | INODE |
1899 | | Initialization, Threading, Error reporting, BFD front end |
1900 | | |
1901 | | FUNCTION |
1902 | | bfd_init |
1903 | | |
1904 | | SYNOPSIS |
1905 | | unsigned int bfd_init (void); |
1906 | | |
1907 | | DESCRIPTION |
1908 | | This routine must be called before any other BFD function to |
1909 | | initialize magical internal data structures. |
1910 | | Returns a magic number, which may be used to check |
1911 | | that the bfd library is configured as expected by users. |
1912 | | |
1913 | | .{* Value returned by bfd_init. *} |
1914 | | .#define BFD_INIT_MAGIC (sizeof (struct bfd_section)) |
1915 | | . |
1916 | | */ |
1917 | | |
1918 | | unsigned int |
1919 | | bfd_init (void) |
1920 | 14.7k | { |
1921 | 14.7k | bfd_error = bfd_error_no_error; |
1922 | 14.7k | input_bfd = NULL; |
1923 | 14.7k | _bfd_clear_error_data (); |
1924 | 14.7k | input_error = bfd_error_no_error; |
1925 | 14.7k | _bfd_error_internal = error_handler_fprintf; |
1926 | 14.7k | _bfd_assert_handler = _bfd_default_assert_handler; |
1927 | | |
1928 | 14.7k | return BFD_INIT_MAGIC; |
1929 | 14.7k | } |
1930 | | |
1931 | | |
1932 | | /* |
1933 | | INODE |
1934 | | Threading, Miscellaneous, Initialization, BFD front end |
1935 | | |
1936 | | SECTION |
1937 | | Threading |
1938 | | |
1939 | | BFD has limited support for thread-safety. Most BFD globals |
1940 | | are protected by locks, while the error-related globals are |
1941 | | thread-local. A given BFD cannot safely be used from two |
1942 | | threads at the same time; it is up to the application to do |
1943 | | any needed locking. However, it is ok for different threads |
1944 | | to work on different BFD objects at the same time. |
1945 | | |
1946 | | SUBSECTION |
1947 | | Thread functions. |
1948 | | |
1949 | | CODE_FRAGMENT |
1950 | | .typedef bool (*bfd_lock_unlock_fn_type) (void *); |
1951 | | */ |
1952 | | |
1953 | | /* The lock and unlock functions, if set. */ |
1954 | | static bfd_lock_unlock_fn_type lock_fn; |
1955 | | static bfd_lock_unlock_fn_type unlock_fn; |
1956 | | static void *lock_data; |
1957 | | |
1958 | | /* |
1959 | | FUNCTION |
1960 | | bfd_thread_init |
1961 | | |
1962 | | SYNOPSIS |
1963 | | bool bfd_thread_init |
1964 | | (bfd_lock_unlock_fn_type lock, |
1965 | | bfd_lock_unlock_fn_type unlock, |
1966 | | void *data); |
1967 | | |
1968 | | DESCRIPTION |
1969 | | |
1970 | | Initialize BFD threading. The functions passed in will be |
1971 | | used to lock and unlock global data structures. This may only |
1972 | | be called a single time in a given process. Returns true on |
1973 | | success and false on error. DATA is passed verbatim to the |
1974 | | lock and unlock functions. The lock and unlock functions |
1975 | | should return true on success, or set the BFD error and return |
1976 | | false on failure. |
1977 | | */ |
1978 | | |
1979 | | bool |
1980 | | bfd_thread_init (bfd_lock_unlock_fn_type lock, bfd_lock_unlock_fn_type unlock, |
1981 | | void *data) |
1982 | 0 | { |
1983 | | /* Both functions must be set, and this cannot have been called |
1984 | | before. */ |
1985 | 0 | if (lock == NULL || unlock == NULL || unlock_fn != NULL) |
1986 | 0 | { |
1987 | 0 | bfd_set_error (bfd_error_invalid_operation); |
1988 | 0 | return false; |
1989 | 0 | } |
1990 | | |
1991 | 0 | lock_fn = lock; |
1992 | 0 | unlock_fn = unlock; |
1993 | 0 | lock_data = data; |
1994 | 0 | return true; |
1995 | 0 | } |
1996 | | |
1997 | | /* |
1998 | | FUNCTION |
1999 | | bfd_thread_cleanup |
2000 | | |
2001 | | SYNOPSIS |
2002 | | void bfd_thread_cleanup (void); |
2003 | | |
2004 | | DESCRIPTION |
2005 | | Clean up any thread-local state. This should be called by a |
2006 | | thread that uses any BFD functions, before the thread exits. |
2007 | | It is fine to call this multiple times, or to call it and then |
2008 | | later call BFD functions on the same thread again. |
2009 | | */ |
2010 | | |
2011 | | void |
2012 | | bfd_thread_cleanup (void) |
2013 | 0 | { |
2014 | 0 | _bfd_clear_error_data (); |
2015 | 0 | } |
2016 | | |
2017 | | /* |
2018 | | INTERNAL_FUNCTION |
2019 | | bfd_lock |
2020 | | |
2021 | | SYNOPSIS |
2022 | | bool bfd_lock (void); |
2023 | | |
2024 | | DESCRIPTION |
2025 | | Acquire the global BFD lock, if needed. Returns true on |
2026 | | success, false on error. |
2027 | | */ |
2028 | | |
2029 | | bool |
2030 | | bfd_lock (void) |
2031 | 1.15G | { |
2032 | 1.15G | if (lock_fn != NULL) |
2033 | 0 | return lock_fn (lock_data); |
2034 | 1.15G | return true; |
2035 | 1.15G | } |
2036 | | |
2037 | | /* |
2038 | | INTERNAL_FUNCTION |
2039 | | bfd_unlock |
2040 | | |
2041 | | SYNOPSIS |
2042 | | bool bfd_unlock (void); |
2043 | | |
2044 | | DESCRIPTION |
2045 | | Release the global BFD lock, if needed. Returns true on |
2046 | | success, false on error. |
2047 | | */ |
2048 | | |
2049 | | bool |
2050 | | bfd_unlock (void) |
2051 | 1.15G | { |
2052 | 1.15G | if (unlock_fn != NULL) |
2053 | 0 | return unlock_fn (lock_data); |
2054 | 1.15G | return true; |
2055 | 1.15G | } |
2056 | | |
2057 | | |
2058 | | /* |
2059 | | INODE |
2060 | | Miscellaneous, Memory Usage, Threading, BFD front end |
2061 | | |
2062 | | SECTION |
2063 | | Miscellaneous |
2064 | | |
2065 | | SUBSECTION |
2066 | | Miscellaneous functions |
2067 | | */ |
2068 | | |
2069 | | /* |
2070 | | FUNCTION |
2071 | | bfd_get_reloc_upper_bound |
2072 | | |
2073 | | SYNOPSIS |
2074 | | long bfd_get_reloc_upper_bound (bfd *abfd, asection *sect); |
2075 | | |
2076 | | DESCRIPTION |
2077 | | Return the number of bytes required to store the |
2078 | | relocation information associated with section @var{sect} |
2079 | | attached to bfd @var{abfd}. If an error occurs, return -1. |
2080 | | |
2081 | | */ |
2082 | | |
2083 | | long |
2084 | | bfd_get_reloc_upper_bound (bfd *abfd, sec_ptr asect) |
2085 | 1.33M | { |
2086 | 1.33M | if (abfd->format != bfd_object) |
2087 | 0 | { |
2088 | 0 | bfd_set_error (bfd_error_invalid_operation); |
2089 | 0 | return -1; |
2090 | 0 | } |
2091 | | |
2092 | 1.33M | return BFD_SEND (abfd, _get_reloc_upper_bound, (abfd, asect)); |
2093 | 1.33M | } |
2094 | | |
2095 | | /* |
2096 | | FUNCTION |
2097 | | bfd_canonicalize_reloc |
2098 | | |
2099 | | SYNOPSIS |
2100 | | long bfd_canonicalize_reloc |
2101 | | (bfd *abfd, asection *sec, arelent **loc, asymbol **syms); |
2102 | | |
2103 | | DESCRIPTION |
2104 | | Call the back end associated with the open BFD |
2105 | | @var{abfd} and translate the external form of the relocation |
2106 | | information attached to @var{sec} into the internal canonical |
2107 | | form. Place the table into memory at @var{loc}, which has |
2108 | | been preallocated, usually by a call to |
2109 | | <<bfd_get_reloc_upper_bound>>. Returns the number of relocs, or |
2110 | | -1 on error. |
2111 | | |
2112 | | The @var{syms} table is also needed for horrible internal magic |
2113 | | reasons. |
2114 | | |
2115 | | */ |
2116 | | long |
2117 | | bfd_canonicalize_reloc (bfd *abfd, |
2118 | | sec_ptr asect, |
2119 | | arelent **location, |
2120 | | asymbol **symbols) |
2121 | 360k | { |
2122 | 360k | if (abfd->format != bfd_object) |
2123 | 0 | { |
2124 | 0 | bfd_set_error (bfd_error_invalid_operation); |
2125 | 0 | return -1; |
2126 | 0 | } |
2127 | | |
2128 | 360k | return BFD_SEND (abfd, _bfd_canonicalize_reloc, |
2129 | 360k | (abfd, asect, location, symbols)); |
2130 | 360k | } |
2131 | | |
2132 | | /* |
2133 | | FUNCTION |
2134 | | bfd_set_reloc |
2135 | | |
2136 | | SYNOPSIS |
2137 | | void bfd_set_reloc |
2138 | | (bfd *abfd, asection *sec, arelent **rel, unsigned int count); |
2139 | | |
2140 | | DESCRIPTION |
2141 | | Set the relocation pointer and count within |
2142 | | section @var{sec} to the values @var{rel} and @var{count}. |
2143 | | The argument @var{abfd} is ignored. |
2144 | | |
2145 | | .#define bfd_set_reloc(abfd, asect, location, count) \ |
2146 | | . BFD_SEND (abfd, _bfd_set_reloc, (abfd, asect, location, count)) |
2147 | | */ |
2148 | | |
2149 | | /* |
2150 | | FUNCTION |
2151 | | bfd_set_file_flags |
2152 | | |
2153 | | SYNOPSIS |
2154 | | bool bfd_set_file_flags (bfd *abfd, flagword flags); |
2155 | | |
2156 | | DESCRIPTION |
2157 | | Set the flag word in the BFD @var{abfd} to the value @var{flags}. |
2158 | | |
2159 | | Possible errors are: |
2160 | | o <<bfd_error_wrong_format>> - The target bfd was not of object format. |
2161 | | o <<bfd_error_invalid_operation>> - The target bfd was open for reading. |
2162 | | o <<bfd_error_invalid_operation>> - |
2163 | | The flag word contained a bit which was not applicable to the |
2164 | | type of file. E.g., an attempt was made to set the <<D_PAGED>> bit |
2165 | | on a BFD format which does not support demand paging. |
2166 | | |
2167 | | */ |
2168 | | |
2169 | | bool |
2170 | | bfd_set_file_flags (bfd *abfd, flagword flags) |
2171 | 142 | { |
2172 | 142 | if (abfd->format != bfd_object) |
2173 | 0 | { |
2174 | 0 | bfd_set_error (bfd_error_wrong_format); |
2175 | 0 | return false; |
2176 | 0 | } |
2177 | | |
2178 | 142 | if (bfd_read_p (abfd)) |
2179 | 0 | { |
2180 | 0 | bfd_set_error (bfd_error_invalid_operation); |
2181 | 0 | return false; |
2182 | 0 | } |
2183 | | |
2184 | 142 | abfd->flags = flags; |
2185 | 142 | if ((flags & bfd_applicable_file_flags (abfd)) != flags) |
2186 | 0 | { |
2187 | 0 | bfd_set_error (bfd_error_invalid_operation); |
2188 | 0 | return false; |
2189 | 0 | } |
2190 | | |
2191 | 142 | return true; |
2192 | 142 | } |
2193 | | |
2194 | | void |
2195 | | bfd_assert (const char *file, int line) |
2196 | 147k | { |
2197 | | /* xgettext:c-format */ |
2198 | 147k | (*_bfd_assert_handler) (_("BFD %s assertion fail %s:%d"), |
2199 | 147k | BFD_VERSION_STRING, file, line); |
2200 | 147k | } |
2201 | | |
2202 | | /* A more or less friendly abort message. In libbfd.h abort is |
2203 | | defined to call this function. */ |
2204 | | |
2205 | | void |
2206 | | _bfd_abort (const char *file, int line, const char *fn) |
2207 | 0 | { |
2208 | 0 | fflush (stdout); |
2209 | |
|
2210 | 0 | if (fn != NULL) |
2211 | 0 | fprintf (stderr, _("%s: BFD %s internal error, aborting at %s:%d in %s\n"), |
2212 | 0 | _bfd_get_error_program_name (), BFD_VERSION_STRING, |
2213 | 0 | file, line, fn); |
2214 | 0 | else |
2215 | 0 | fprintf (stderr, _("%s: BFD %s internal error, aborting at %s:%d\n"), |
2216 | 0 | _bfd_get_error_program_name (), BFD_VERSION_STRING, |
2217 | 0 | file, line); |
2218 | 0 | fprintf (stderr, _("Please report this bug.\n")); |
2219 | 0 | _exit (EXIT_FAILURE); |
2220 | 0 | } |
2221 | | |
2222 | | /* |
2223 | | FUNCTION |
2224 | | bfd_get_arch_size |
2225 | | |
2226 | | SYNOPSIS |
2227 | | int bfd_get_arch_size (bfd *abfd); |
2228 | | |
2229 | | DESCRIPTION |
2230 | | Returns the normalized architecture address size, in bits, as |
2231 | | determined by the object file's format. By normalized, we mean |
2232 | | either 32 or 64. For ELF, this information is included in the |
2233 | | header. Use bfd_arch_bits_per_address for number of bits in |
2234 | | the architecture address. |
2235 | | |
2236 | | Returns the arch size in bits if known, <<-1>> otherwise. |
2237 | | */ |
2238 | | |
2239 | | int |
2240 | | bfd_get_arch_size (bfd *abfd) |
2241 | 23.6k | { |
2242 | 23.6k | if (abfd->xvec->flavour == bfd_target_elf_flavour) |
2243 | 6.57k | return get_elf_backend_data (abfd)->s->arch_size; |
2244 | | |
2245 | 17.0k | return bfd_arch_bits_per_address (abfd) > 32 ? 64 : 32; |
2246 | 23.6k | } |
2247 | | |
2248 | | /* |
2249 | | FUNCTION |
2250 | | bfd_get_sign_extend_vma |
2251 | | |
2252 | | SYNOPSIS |
2253 | | int bfd_get_sign_extend_vma (bfd *abfd); |
2254 | | |
2255 | | DESCRIPTION |
2256 | | Indicates if the target architecture "naturally" sign extends |
2257 | | an address. Some architectures implicitly sign extend address |
2258 | | values when they are converted to types larger than the size |
2259 | | of an address. For instance, bfd_get_start_address() will |
2260 | | return an address sign extended to fill a bfd_vma when this is |
2261 | | the case. |
2262 | | |
2263 | | Returns <<1>> if the target architecture is known to sign |
2264 | | extend addresses, <<0>> if the target architecture is known to |
2265 | | not sign extend addresses, and <<-1>> otherwise. |
2266 | | */ |
2267 | | |
2268 | | int |
2269 | | bfd_get_sign_extend_vma (bfd *abfd) |
2270 | 0 | { |
2271 | 0 | const char *name; |
2272 | |
|
2273 | 0 | if (bfd_get_flavour (abfd) == bfd_target_elf_flavour) |
2274 | 0 | return get_elf_backend_data (abfd)->sign_extend_vma; |
2275 | | |
2276 | 0 | name = bfd_get_target (abfd); |
2277 | | |
2278 | | /* Return a proper value for DJGPP & PE COFF. |
2279 | | This function is required for DWARF2 support, but there is |
2280 | | no place to store this information in the COFF back end. |
2281 | | Should enough other COFF targets add support for DWARF2, |
2282 | | a place will have to be found. Until then, this hack will do. */ |
2283 | 0 | if (startswith (name, "coff-go32") |
2284 | 0 | || strcmp (name, "pe-i386") == 0 |
2285 | 0 | || strcmp (name, "pei-i386") == 0 |
2286 | 0 | || strcmp (name, "pe-x86-64") == 0 |
2287 | 0 | || strcmp (name, "pei-x86-64") == 0 |
2288 | 0 | || strcmp (name, "pe-aarch64-little") == 0 |
2289 | 0 | || strcmp (name, "pei-aarch64-little") == 0 |
2290 | 0 | || strcmp (name, "pe-arm-wince-little") == 0 |
2291 | 0 | || strcmp (name, "pei-arm-wince-little") == 0 |
2292 | 0 | || strcmp (name, "pei-loongarch64") == 0 |
2293 | 0 | || strcmp (name, "pei-riscv64-little") == 0 |
2294 | 0 | || strcmp (name, "aixcoff-rs6000") == 0 |
2295 | 0 | || strcmp (name, "aix5coff64-rs6000") == 0) |
2296 | 0 | return 1; |
2297 | | |
2298 | 0 | if (startswith (name, "mach-o")) |
2299 | 0 | return 0; |
2300 | | |
2301 | 0 | bfd_set_error (bfd_error_wrong_format); |
2302 | 0 | return -1; |
2303 | 0 | } |
2304 | | |
2305 | | /* |
2306 | | FUNCTION |
2307 | | bfd_set_start_address |
2308 | | |
2309 | | SYNOPSIS |
2310 | | bool bfd_set_start_address (bfd *abfd, bfd_vma vma); |
2311 | | |
2312 | | DESCRIPTION |
2313 | | Make @var{vma} the entry point of output BFD @var{abfd}. |
2314 | | |
2315 | | Returns <<TRUE>> on success, <<FALSE>> otherwise. |
2316 | | */ |
2317 | | |
2318 | | bool |
2319 | | bfd_set_start_address (bfd *abfd, bfd_vma vma) |
2320 | 676k | { |
2321 | 676k | abfd->start_address = vma; |
2322 | 676k | return true; |
2323 | 676k | } |
2324 | | |
2325 | | /* |
2326 | | FUNCTION |
2327 | | bfd_get_gp_size |
2328 | | |
2329 | | SYNOPSIS |
2330 | | unsigned int bfd_get_gp_size (bfd *abfd); |
2331 | | |
2332 | | DESCRIPTION |
2333 | | Return the maximum size of objects to be optimized using the GP |
2334 | | register under MIPS ECOFF. This is typically set by the <<-G>> |
2335 | | argument to the compiler, assembler or linker. |
2336 | | */ |
2337 | | |
2338 | | unsigned int |
2339 | | bfd_get_gp_size (bfd *abfd) |
2340 | 0 | { |
2341 | 0 | if (abfd->format == bfd_object) |
2342 | 0 | { |
2343 | 0 | if (abfd->xvec->flavour == bfd_target_ecoff_flavour) |
2344 | 0 | return ecoff_data (abfd)->gp_size; |
2345 | 0 | else if (abfd->xvec->flavour == bfd_target_elf_flavour) |
2346 | 0 | return elf_gp_size (abfd); |
2347 | 0 | } |
2348 | 0 | return 0; |
2349 | 0 | } |
2350 | | |
2351 | | /* |
2352 | | FUNCTION |
2353 | | bfd_set_gp_size |
2354 | | |
2355 | | SYNOPSIS |
2356 | | void bfd_set_gp_size (bfd *abfd, unsigned int i); |
2357 | | |
2358 | | DESCRIPTION |
2359 | | Set the maximum size of objects to be optimized using the GP |
2360 | | register under ECOFF or MIPS ELF. This is typically set by |
2361 | | the <<-G>> argument to the compiler, assembler or linker. |
2362 | | */ |
2363 | | |
2364 | | void |
2365 | | bfd_set_gp_size (bfd *abfd, unsigned int i) |
2366 | 0 | { |
2367 | | /* Don't try to set GP size on an archive or core file! */ |
2368 | 0 | if (abfd->format != bfd_object) |
2369 | 0 | return; |
2370 | | |
2371 | 0 | if (abfd->xvec->flavour == bfd_target_ecoff_flavour) |
2372 | 0 | ecoff_data (abfd)->gp_size = i; |
2373 | 0 | else if (abfd->xvec->flavour == bfd_target_elf_flavour) |
2374 | 0 | elf_gp_size (abfd) = i; |
2375 | 0 | } |
2376 | | |
2377 | | /* Get the GP value. This is an internal function used by some of the |
2378 | | relocation special_function routines on targets which support a GP |
2379 | | register. */ |
2380 | | |
2381 | | bfd_vma |
2382 | | _bfd_get_gp_value (bfd *abfd) |
2383 | 56 | { |
2384 | 56 | if (! abfd) |
2385 | 0 | return 0; |
2386 | 56 | if (abfd->format != bfd_object) |
2387 | 0 | return 0; |
2388 | | |
2389 | 56 | if (abfd->xvec->flavour == bfd_target_ecoff_flavour) |
2390 | 0 | return ecoff_data (abfd)->gp; |
2391 | 56 | else if (abfd->xvec->flavour == bfd_target_elf_flavour) |
2392 | 56 | return elf_gp (abfd); |
2393 | | |
2394 | 0 | return 0; |
2395 | 56 | } |
2396 | | |
2397 | | /* Set the GP value. */ |
2398 | | |
2399 | | void |
2400 | | _bfd_set_gp_value (bfd *abfd, bfd_vma v) |
2401 | 24 | { |
2402 | 24 | if (! abfd) |
2403 | 0 | abort (); |
2404 | 24 | if (abfd->format != bfd_object) |
2405 | 0 | return; |
2406 | | |
2407 | 24 | if (abfd->xvec->flavour == bfd_target_ecoff_flavour) |
2408 | 0 | ecoff_data (abfd)->gp = v; |
2409 | 24 | else if (abfd->xvec->flavour == bfd_target_elf_flavour) |
2410 | 24 | elf_gp (abfd) = v; |
2411 | 24 | } |
2412 | | |
2413 | | /* |
2414 | | FUNCTION |
2415 | | bfd_set_gp_value |
2416 | | |
2417 | | SYNOPSIS |
2418 | | void bfd_set_gp_value (bfd *abfd, bfd_vma v); |
2419 | | |
2420 | | DESCRIPTION |
2421 | | Allow external access to the fucntion to set the GP value. |
2422 | | This is specifically added for gdb-compile support. |
2423 | | */ |
2424 | | |
2425 | | void |
2426 | | bfd_set_gp_value (bfd *abfd, bfd_vma v) |
2427 | 0 | { |
2428 | 0 | _bfd_set_gp_value (abfd, v); |
2429 | 0 | } |
2430 | | |
2431 | | /* |
2432 | | FUNCTION |
2433 | | bfd_scan_vma |
2434 | | |
2435 | | SYNOPSIS |
2436 | | bfd_vma bfd_scan_vma (const char *string, const char **end, int base); |
2437 | | |
2438 | | DESCRIPTION |
2439 | | Convert, like <<strtoul>> or <<stdtoull> depending on the size |
2440 | | of a <<bfd_vma>>, a numerical expression @var{string} into a |
2441 | | <<bfd_vma>> integer, and return that integer. |
2442 | | */ |
2443 | | |
2444 | | bfd_vma |
2445 | | bfd_scan_vma (const char *string, const char **end, int base) |
2446 | 60.3k | { |
2447 | 60.3k | if (sizeof (bfd_vma) <= sizeof (unsigned long)) |
2448 | 60.3k | return strtoul (string, (char **) end, base); |
2449 | | |
2450 | 0 | if (sizeof (bfd_vma) <= sizeof (unsigned long long)) |
2451 | 0 | return strtoull (string, (char **) end, base); |
2452 | | |
2453 | 0 | abort (); |
2454 | 0 | } |
2455 | | |
2456 | | /* |
2457 | | FUNCTION |
2458 | | bfd_copy_private_header_data |
2459 | | |
2460 | | SYNOPSIS |
2461 | | bool bfd_copy_private_header_data (bfd *ibfd, bfd *obfd); |
2462 | | |
2463 | | DESCRIPTION |
2464 | | Copy private BFD header information from the BFD @var{ibfd} to the |
2465 | | the BFD @var{obfd}. This copies information that may require |
2466 | | sections to exist, but does not require symbol tables. Return |
2467 | | <<true>> on success, <<false>> on error. |
2468 | | Possible error returns are: |
2469 | | |
2470 | | o <<bfd_error_no_memory>> - |
2471 | | Not enough memory exists to create private data for @var{obfd}. |
2472 | | |
2473 | | .#define bfd_copy_private_header_data(ibfd, obfd) \ |
2474 | | . BFD_SEND (obfd, _bfd_copy_private_header_data, \ |
2475 | | . (ibfd, obfd)) |
2476 | | |
2477 | | */ |
2478 | | |
2479 | | /* |
2480 | | FUNCTION |
2481 | | bfd_copy_private_bfd_data |
2482 | | |
2483 | | SYNOPSIS |
2484 | | bool bfd_copy_private_bfd_data (bfd *ibfd, bfd *obfd); |
2485 | | |
2486 | | DESCRIPTION |
2487 | | Copy private BFD information from the BFD @var{ibfd} to the |
2488 | | the BFD @var{obfd}. Return <<TRUE>> on success, <<FALSE>> on error. |
2489 | | Possible error returns are: |
2490 | | |
2491 | | o <<bfd_error_no_memory>> - |
2492 | | Not enough memory exists to create private data for @var{obfd}. |
2493 | | |
2494 | | .#define bfd_copy_private_bfd_data(ibfd, obfd) \ |
2495 | | . BFD_SEND (obfd, _bfd_copy_private_bfd_data, \ |
2496 | | . (ibfd, obfd)) |
2497 | | |
2498 | | */ |
2499 | | |
2500 | | /* |
2501 | | FUNCTION |
2502 | | bfd_set_private_flags |
2503 | | |
2504 | | SYNOPSIS |
2505 | | bool bfd_set_private_flags (bfd *abfd, flagword flags); |
2506 | | |
2507 | | DESCRIPTION |
2508 | | Set private BFD flag information in the BFD @var{abfd}. |
2509 | | Return <<TRUE>> on success, <<FALSE>> on error. Possible error |
2510 | | returns are: |
2511 | | |
2512 | | o <<bfd_error_no_memory>> - |
2513 | | Not enough memory exists to create private data for @var{obfd}. |
2514 | | |
2515 | | .#define bfd_set_private_flags(abfd, flags) \ |
2516 | | . BFD_SEND (abfd, _bfd_set_private_flags, (abfd, flags)) |
2517 | | |
2518 | | */ |
2519 | | |
2520 | | /* |
2521 | | FUNCTION |
2522 | | Other functions |
2523 | | |
2524 | | DESCRIPTION |
2525 | | The following functions exist but have not yet been documented. |
2526 | | |
2527 | | .#define bfd_sizeof_headers(abfd, info) \ |
2528 | | . BFD_SEND (abfd, _bfd_sizeof_headers, (abfd, info)) |
2529 | | . |
2530 | | .#define bfd_find_nearest_line(abfd, sec, syms, off, file, func, line) \ |
2531 | | . BFD_SEND (abfd, _bfd_find_nearest_line, \ |
2532 | | . (abfd, syms, sec, off, file, func, line, NULL)) |
2533 | | . |
2534 | | .#define bfd_find_nearest_line_with_alt(abfd, alt_filename, sec, syms, off, \ |
2535 | | . file, func, line, disc) \ |
2536 | | . BFD_SEND (abfd, _bfd_find_nearest_line_with_alt, \ |
2537 | | . (abfd, alt_filename, syms, sec, off, file, func, line, disc)) |
2538 | | . |
2539 | | .#define bfd_find_nearest_line_discriminator(abfd, sec, syms, off, file, func, \ |
2540 | | . line, disc) \ |
2541 | | . BFD_SEND (abfd, _bfd_find_nearest_line, \ |
2542 | | . (abfd, syms, sec, off, file, func, line, disc)) |
2543 | | . |
2544 | | .#define bfd_find_line(abfd, syms, sym, file, line) \ |
2545 | | . BFD_SEND (abfd, _bfd_find_line, \ |
2546 | | . (abfd, syms, sym, file, line)) |
2547 | | . |
2548 | | .#define bfd_find_inliner_info(abfd, file, func, line) \ |
2549 | | . BFD_SEND (abfd, _bfd_find_inliner_info, \ |
2550 | | . (abfd, file, func, line)) |
2551 | | . |
2552 | | .#define bfd_debug_info_start(abfd) \ |
2553 | | . BFD_SEND (abfd, _bfd_debug_info_start, (abfd)) |
2554 | | . |
2555 | | .#define bfd_debug_info_end(abfd) \ |
2556 | | . BFD_SEND (abfd, _bfd_debug_info_end, (abfd)) |
2557 | | . |
2558 | | .#define bfd_debug_info_accumulate(abfd, section) \ |
2559 | | . BFD_SEND (abfd, _bfd_debug_info_accumulate, (abfd, section)) |
2560 | | . |
2561 | | .#define bfd_stat_arch_elt(abfd, stat) \ |
2562 | | . BFD_SEND (abfd->my_archive ? abfd->my_archive : abfd, \ |
2563 | | . _bfd_stat_arch_elt, (abfd, stat)) |
2564 | | . |
2565 | | .#define bfd_update_armap_timestamp(abfd) \ |
2566 | | . BFD_SEND (abfd, _bfd_update_armap_timestamp, (abfd)) |
2567 | | . |
2568 | | .#define bfd_set_arch_mach(abfd, arch, mach)\ |
2569 | | . BFD_SEND ( abfd, _bfd_set_arch_mach, (abfd, arch, mach)) |
2570 | | . |
2571 | | .#define bfd_relax_section(abfd, section, link_info, again) \ |
2572 | | . BFD_SEND (abfd, _bfd_relax_section, (abfd, section, link_info, again)) |
2573 | | . |
2574 | | .#define bfd_gc_sections(abfd, link_info) \ |
2575 | | . BFD_SEND (abfd, _bfd_gc_sections, (abfd, link_info)) |
2576 | | . |
2577 | | .#define bfd_lookup_section_flags(link_info, flag_info, section) \ |
2578 | | . BFD_SEND (abfd, _bfd_lookup_section_flags, (link_info, flag_info, section)) |
2579 | | . |
2580 | | .#define bfd_merge_sections(abfd, link_info) \ |
2581 | | . BFD_SEND (abfd, _bfd_merge_sections, (abfd, link_info)) |
2582 | | . |
2583 | | .#define bfd_is_group_section(abfd, sec) \ |
2584 | | . BFD_SEND (abfd, _bfd_is_group_section, (abfd, sec)) |
2585 | | . |
2586 | | .#define bfd_group_name(abfd, sec) \ |
2587 | | . BFD_SEND (abfd, _bfd_group_name, (abfd, sec)) |
2588 | | . |
2589 | | .#define bfd_discard_group(abfd, sec) \ |
2590 | | . BFD_SEND (abfd, _bfd_discard_group, (abfd, sec)) |
2591 | | . |
2592 | | .#define bfd_link_hash_table_create(abfd) \ |
2593 | | . BFD_SEND (abfd, _bfd_link_hash_table_create, (abfd)) |
2594 | | . |
2595 | | .#define bfd_link_add_symbols(abfd, info) \ |
2596 | | . BFD_SEND (abfd, _bfd_link_add_symbols, (abfd, info)) |
2597 | | . |
2598 | | .#define bfd_link_just_syms(abfd, sec, info) \ |
2599 | | . BFD_SEND (abfd, _bfd_link_just_syms, (sec, info)) |
2600 | | . |
2601 | | .#define bfd_final_link(abfd, info) \ |
2602 | | . BFD_SEND (abfd, _bfd_final_link, (abfd, info)) |
2603 | | . |
2604 | | .#define bfd_free_cached_info(abfd) \ |
2605 | | . BFD_SEND (abfd, _bfd_free_cached_info, (abfd)) |
2606 | | . |
2607 | | .#define bfd_get_dynamic_symtab_upper_bound(abfd) \ |
2608 | | . BFD_SEND (abfd, _bfd_get_dynamic_symtab_upper_bound, (abfd)) |
2609 | | . |
2610 | | .#define bfd_print_private_bfd_data(abfd, file)\ |
2611 | | . BFD_SEND (abfd, _bfd_print_private_bfd_data, (abfd, file)) |
2612 | | . |
2613 | | .#define bfd_canonicalize_dynamic_symtab(abfd, asymbols) \ |
2614 | | . BFD_SEND (abfd, _bfd_canonicalize_dynamic_symtab, (abfd, asymbols)) |
2615 | | . |
2616 | | .#define bfd_get_synthetic_symtab(abfd, count, syms, dyncount, dynsyms, ret) \ |
2617 | | . BFD_SEND (abfd, _bfd_get_synthetic_symtab, (abfd, count, syms, \ |
2618 | | . dyncount, dynsyms, ret)) |
2619 | | . |
2620 | | .#define bfd_get_dynamic_reloc_upper_bound(abfd) \ |
2621 | | . BFD_SEND (abfd, _bfd_get_dynamic_reloc_upper_bound, (abfd)) |
2622 | | . |
2623 | | .#define bfd_canonicalize_dynamic_reloc(abfd, arels, asyms) \ |
2624 | | . BFD_SEND (abfd, _bfd_canonicalize_dynamic_reloc, (abfd, arels, asyms)) |
2625 | | . |
2626 | | */ |
2627 | | |
2628 | | /* |
2629 | | FUNCTION |
2630 | | bfd_get_relocated_section_contents |
2631 | | |
2632 | | SYNOPSIS |
2633 | | bfd_byte *bfd_get_relocated_section_contents |
2634 | | (bfd *, struct bfd_link_info *, struct bfd_link_order *, bfd_byte *, |
2635 | | bool, asymbol **); |
2636 | | |
2637 | | DESCRIPTION |
2638 | | Read and relocate the indirect link_order section, into DATA |
2639 | | (if non-NULL) or to a malloc'd buffer. Return the buffer, or |
2640 | | NULL on errors. |
2641 | | */ |
2642 | | |
2643 | | bfd_byte * |
2644 | | bfd_get_relocated_section_contents (bfd *abfd, |
2645 | | struct bfd_link_info *link_info, |
2646 | | struct bfd_link_order *link_order, |
2647 | | bfd_byte *data, |
2648 | | bool relocatable, |
2649 | | asymbol **symbols) |
2650 | 2.24k | { |
2651 | 2.24k | bfd *abfd2; |
2652 | 2.24k | bfd_byte *(*fn) (bfd *, struct bfd_link_info *, struct bfd_link_order *, |
2653 | 2.24k | bfd_byte *, bool, asymbol **); |
2654 | | |
2655 | 2.24k | if (link_order->type == bfd_indirect_link_order) |
2656 | 2.24k | { |
2657 | 2.24k | abfd2 = link_order->u.indirect.section->owner; |
2658 | 2.24k | if (abfd2 == NULL) |
2659 | 0 | abfd2 = abfd; |
2660 | 2.24k | } |
2661 | 0 | else |
2662 | 0 | abfd2 = abfd; |
2663 | | |
2664 | 2.24k | fn = abfd2->xvec->_bfd_get_relocated_section_contents; |
2665 | | |
2666 | 2.24k | return (*fn) (abfd, link_info, link_order, data, relocatable, symbols); |
2667 | 2.24k | } |
2668 | | |
2669 | | /* |
2670 | | FUNCTION |
2671 | | bfd_record_phdr |
2672 | | |
2673 | | SYNOPSIS |
2674 | | bool bfd_record_phdr |
2675 | | (bfd *, unsigned long, bool, flagword, bool, bfd_vma, |
2676 | | bool, bool, unsigned int, struct bfd_section **); |
2677 | | |
2678 | | DESCRIPTION |
2679 | | Record information about an ELF program header. |
2680 | | */ |
2681 | | |
2682 | | bool |
2683 | | bfd_record_phdr (bfd *abfd, |
2684 | | unsigned long type, |
2685 | | bool flags_valid, |
2686 | | flagword flags, |
2687 | | bool at_valid, |
2688 | | bfd_vma at, /* Bytes. */ |
2689 | | bool includes_filehdr, |
2690 | | bool includes_phdrs, |
2691 | | unsigned int count, |
2692 | | asection **secs) |
2693 | 0 | { |
2694 | 0 | struct elf_segment_map *m, **pm; |
2695 | 0 | size_t amt; |
2696 | 0 | unsigned int opb = bfd_octets_per_byte (abfd, NULL); |
2697 | |
|
2698 | 0 | if (bfd_get_flavour (abfd) != bfd_target_elf_flavour) |
2699 | 0 | return true; |
2700 | | |
2701 | 0 | amt = sizeof (struct elf_segment_map); |
2702 | 0 | amt += ((bfd_size_type) count - 1) * sizeof (asection *); |
2703 | 0 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
2704 | 0 | if (m == NULL) |
2705 | 0 | return false; |
2706 | | |
2707 | 0 | m->p_type = type; |
2708 | 0 | m->p_flags = flags; |
2709 | 0 | m->p_paddr = at * opb; |
2710 | 0 | m->p_flags_valid = flags_valid; |
2711 | 0 | m->p_paddr_valid = at_valid; |
2712 | 0 | m->includes_filehdr = includes_filehdr; |
2713 | 0 | m->includes_phdrs = includes_phdrs; |
2714 | 0 | m->count = count; |
2715 | 0 | if (count > 0) |
2716 | 0 | memcpy (m->sections, secs, count * sizeof (asection *)); |
2717 | |
|
2718 | 0 | for (pm = &elf_seg_map (abfd); *pm != NULL; pm = &(*pm)->next) |
2719 | 0 | ; |
2720 | 0 | *pm = m; |
2721 | |
|
2722 | 0 | return true; |
2723 | 0 | } |
2724 | | |
2725 | | #ifdef BFD64 |
2726 | | /* Return true iff this target is 32-bit. */ |
2727 | | |
2728 | | static bool |
2729 | | is32bit (bfd *abfd) |
2730 | 120M | { |
2731 | 120M | if (bfd_get_flavour (abfd) == bfd_target_elf_flavour) |
2732 | 51.5M | { |
2733 | 51.5M | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
2734 | 51.5M | return bed->s->elfclass == ELFCLASS32; |
2735 | 51.5M | } |
2736 | | |
2737 | | /* For non-ELF targets, use architecture information. */ |
2738 | 69.0M | return bfd_arch_bits_per_address (abfd) <= 32; |
2739 | 120M | } |
2740 | | #endif |
2741 | | |
2742 | | /* |
2743 | | FUNCTION |
2744 | | bfd_sprintf_vma |
2745 | | bfd_fprintf_vma |
2746 | | |
2747 | | SYNOPSIS |
2748 | | void bfd_sprintf_vma (bfd *, char *, bfd_vma); |
2749 | | void bfd_fprintf_vma (bfd *, void *, bfd_vma); |
2750 | | |
2751 | | DESCRIPTION |
2752 | | bfd_sprintf_vma and bfd_fprintf_vma display an address in the |
2753 | | target's address size. |
2754 | | |
2755 | | EXTERNAL |
2756 | | .#define bfd_printf_vma(abfd,x) bfd_fprintf_vma (abfd, stdout, x) |
2757 | | . |
2758 | | */ |
2759 | | |
2760 | | void |
2761 | | bfd_sprintf_vma (bfd *abfd ATTRIBUTE_UNUSED, char *buf, bfd_vma value) |
2762 | 118M | { |
2763 | 118M | #ifdef BFD64 |
2764 | 118M | if (!is32bit (abfd)) |
2765 | 32.4M | { |
2766 | 32.4M | sprintf (buf, "%016" PRIx64, (uint64_t) value); |
2767 | 32.4M | return; |
2768 | 32.4M | } |
2769 | 85.7M | #endif |
2770 | 85.7M | sprintf (buf, "%08lx", (unsigned long) value & 0xffffffff); |
2771 | 85.7M | } |
2772 | | |
2773 | | void |
2774 | | bfd_fprintf_vma (bfd *abfd ATTRIBUTE_UNUSED, void *stream, bfd_vma value) |
2775 | 2.45M | { |
2776 | 2.45M | #ifdef BFD64 |
2777 | 2.45M | if (!is32bit (abfd)) |
2778 | 742k | { |
2779 | 742k | fprintf ((FILE *) stream, "%016" PRIx64, (uint64_t) value); |
2780 | 742k | return; |
2781 | 742k | } |
2782 | 1.71M | #endif |
2783 | 1.71M | fprintf ((FILE *) stream, "%08lx", (unsigned long) value & 0xffffffff); |
2784 | 1.71M | } |
2785 | | |
2786 | | /* |
2787 | | FUNCTION |
2788 | | bfd_alt_mach_code |
2789 | | |
2790 | | SYNOPSIS |
2791 | | bool bfd_alt_mach_code (bfd *abfd, int alternative); |
2792 | | |
2793 | | DESCRIPTION |
2794 | | |
2795 | | When more than one machine code number is available for the |
2796 | | same machine type, this function can be used to switch between |
2797 | | the preferred one (alternative == 0) and any others. Currently, |
2798 | | only ELF supports this feature, with up to two alternate |
2799 | | machine codes. |
2800 | | */ |
2801 | | |
2802 | | bool |
2803 | | bfd_alt_mach_code (bfd *abfd, int alternative) |
2804 | 0 | { |
2805 | 0 | if (bfd_get_flavour (abfd) == bfd_target_elf_flavour) |
2806 | 0 | { |
2807 | 0 | int code; |
2808 | |
|
2809 | 0 | switch (alternative) |
2810 | 0 | { |
2811 | 0 | case 0: |
2812 | 0 | code = get_elf_backend_data (abfd)->elf_machine_code; |
2813 | 0 | break; |
2814 | | |
2815 | 0 | case 1: |
2816 | 0 | code = get_elf_backend_data (abfd)->elf_machine_alt1; |
2817 | 0 | if (code == 0) |
2818 | 0 | return false; |
2819 | 0 | break; |
2820 | | |
2821 | 0 | case 2: |
2822 | 0 | code = get_elf_backend_data (abfd)->elf_machine_alt2; |
2823 | 0 | if (code == 0) |
2824 | 0 | return false; |
2825 | 0 | break; |
2826 | | |
2827 | 0 | default: |
2828 | 0 | return false; |
2829 | 0 | } |
2830 | | |
2831 | 0 | elf_elfheader (abfd)->e_machine = code; |
2832 | |
|
2833 | 0 | return true; |
2834 | 0 | } |
2835 | | |
2836 | 0 | return false; |
2837 | 0 | } |
2838 | | |
2839 | | /* |
2840 | | FUNCTION |
2841 | | bfd_emul_get_maxpagesize |
2842 | | |
2843 | | SYNOPSIS |
2844 | | bfd_vma bfd_emul_get_maxpagesize (const char *); |
2845 | | |
2846 | | DESCRIPTION |
2847 | | Returns the maximum page size, in bytes, as determined by |
2848 | | emulation. |
2849 | | */ |
2850 | | |
2851 | | bfd_vma |
2852 | | bfd_emul_get_maxpagesize (const char *emul) |
2853 | 0 | { |
2854 | 0 | const bfd_target *target; |
2855 | |
|
2856 | 0 | target = bfd_find_target (emul, NULL); |
2857 | 0 | if (target != NULL |
2858 | 0 | && target->flavour == bfd_target_elf_flavour) |
2859 | 0 | return xvec_get_elf_backend_data (target)->maxpagesize; |
2860 | | |
2861 | 0 | return 0; |
2862 | 0 | } |
2863 | | |
2864 | | /* |
2865 | | FUNCTION |
2866 | | bfd_emul_get_commonpagesize |
2867 | | |
2868 | | SYNOPSIS |
2869 | | bfd_vma bfd_emul_get_commonpagesize (const char *); |
2870 | | |
2871 | | DESCRIPTION |
2872 | | Returns the common page size, in bytes, as determined by |
2873 | | emulation. |
2874 | | */ |
2875 | | |
2876 | | bfd_vma |
2877 | | bfd_emul_get_commonpagesize (const char *emul) |
2878 | 0 | { |
2879 | 0 | const bfd_target *target; |
2880 | |
|
2881 | 0 | target = bfd_find_target (emul, NULL); |
2882 | 0 | if (target != NULL |
2883 | 0 | && target->flavour == bfd_target_elf_flavour) |
2884 | 0 | { |
2885 | 0 | const struct elf_backend_data *bed; |
2886 | |
|
2887 | 0 | bed = xvec_get_elf_backend_data (target); |
2888 | 0 | return bed->commonpagesize; |
2889 | 0 | } |
2890 | 0 | return 0; |
2891 | 0 | } |
2892 | | |
2893 | | /* |
2894 | | FUNCTION |
2895 | | bfd_demangle |
2896 | | |
2897 | | SYNOPSIS |
2898 | | char *bfd_demangle (bfd *, const char *, int); |
2899 | | |
2900 | | DESCRIPTION |
2901 | | Wrapper around cplus_demangle. Strips leading underscores and |
2902 | | other such chars that would otherwise confuse the demangler. |
2903 | | If passed a g++ v3 ABI mangled name, returns a buffer allocated |
2904 | | with malloc holding the demangled name. Returns NULL otherwise |
2905 | | and on memory alloc failure. |
2906 | | */ |
2907 | | |
2908 | | char * |
2909 | | bfd_demangle (bfd *abfd, const char *name, int options) |
2910 | 0 | { |
2911 | 0 | char *res, *alloc; |
2912 | 0 | const char *pre, *suf; |
2913 | 0 | size_t pre_len; |
2914 | 0 | bool skip_lead; |
2915 | |
|
2916 | 0 | skip_lead = (abfd != NULL |
2917 | 0 | && *name != '\0' |
2918 | 0 | && bfd_get_symbol_leading_char (abfd) == *name); |
2919 | 0 | if (skip_lead) |
2920 | 0 | ++name; |
2921 | | |
2922 | | /* This is a hack for better error reporting on XCOFF, PowerPC64-ELF |
2923 | | or the MS PE format. These formats have a number of leading '.'s |
2924 | | on at least some symbols, so we remove all dots to avoid |
2925 | | confusing the demangler. */ |
2926 | 0 | pre = name; |
2927 | 0 | while (*name == '.' || *name == '$') |
2928 | 0 | ++name; |
2929 | 0 | pre_len = name - pre; |
2930 | | |
2931 | | /* Strip off @plt and suchlike too. */ |
2932 | 0 | alloc = NULL; |
2933 | 0 | suf = strchr (name, '@'); |
2934 | 0 | if (suf != NULL) |
2935 | 0 | { |
2936 | 0 | alloc = (char *) bfd_malloc (suf - name + 1); |
2937 | 0 | if (alloc == NULL) |
2938 | 0 | return NULL; |
2939 | 0 | memcpy (alloc, name, suf - name); |
2940 | 0 | alloc[suf - name] = '\0'; |
2941 | 0 | name = alloc; |
2942 | 0 | } |
2943 | | |
2944 | 0 | res = cplus_demangle (name, options); |
2945 | |
|
2946 | 0 | free (alloc); |
2947 | |
|
2948 | 0 | if (res == NULL) |
2949 | 0 | { |
2950 | 0 | if (skip_lead) |
2951 | 0 | { |
2952 | 0 | size_t len = strlen (pre) + 1; |
2953 | 0 | alloc = (char *) bfd_malloc (len); |
2954 | 0 | if (alloc == NULL) |
2955 | 0 | return NULL; |
2956 | 0 | memcpy (alloc, pre, len); |
2957 | 0 | return alloc; |
2958 | 0 | } |
2959 | 0 | return NULL; |
2960 | 0 | } |
2961 | | |
2962 | | /* Put back any prefix or suffix. */ |
2963 | 0 | if (pre_len != 0 || suf != NULL) |
2964 | 0 | { |
2965 | 0 | size_t len; |
2966 | 0 | size_t suf_len; |
2967 | 0 | char *final; |
2968 | |
|
2969 | 0 | len = strlen (res); |
2970 | 0 | if (suf == NULL) |
2971 | 0 | suf = res + len; |
2972 | 0 | suf_len = strlen (suf) + 1; |
2973 | 0 | final = (char *) bfd_malloc (pre_len + len + suf_len); |
2974 | 0 | if (final != NULL) |
2975 | 0 | { |
2976 | 0 | memcpy (final, pre, pre_len); |
2977 | 0 | memcpy (final + pre_len, res, len); |
2978 | 0 | memcpy (final + pre_len + len, suf, suf_len); |
2979 | 0 | } |
2980 | 0 | free (res); |
2981 | 0 | res = final; |
2982 | 0 | } |
2983 | |
|
2984 | 0 | return res; |
2985 | 0 | } |
2986 | | |
2987 | | /* Get the linker information. */ |
2988 | | |
2989 | | struct bfd_link_info * |
2990 | | _bfd_get_link_info (bfd *abfd) |
2991 | 0 | { |
2992 | 0 | if (bfd_get_flavour (abfd) != bfd_target_elf_flavour) |
2993 | 0 | return NULL; |
2994 | | |
2995 | 0 | return elf_link_info (abfd); |
2996 | 0 | } |