Commit | Line | Data |
---|---|---|
252b5132 | 1 | /* opncls.c -- open and close a BFD. |
a253d456 | 2 | Copyright 1990-2013 Free Software Foundation, Inc. |
252b5132 RH |
3 | |
4 | Written by Cygnus Support. | |
5 | ||
c4f3d130 | 6 | This file is part of BFD, the Binary File Descriptor library. |
252b5132 | 7 | |
c4f3d130 NC |
8 | This program is free software; you can redistribute it and/or modify |
9 | it under the terms of the GNU General Public License as published by | |
cd123cb7 | 10 | the Free Software Foundation; either version 3 of the License, or |
c4f3d130 | 11 | (at your option) any later version. |
252b5132 | 12 | |
c4f3d130 NC |
13 | This program is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
252b5132 | 17 | |
c4f3d130 NC |
18 | You should have received a copy of the GNU General Public License |
19 | along with this program; if not, write to the Free Software | |
cd123cb7 NC |
20 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
21 | MA 02110-1301, USA. */ | |
252b5132 | 22 | |
252b5132 | 23 | #include "sysdep.h" |
3db64b00 | 24 | #include "bfd.h" |
252b5132 RH |
25 | #include "objalloc.h" |
26 | #include "libbfd.h" | |
31f7ba04 | 27 | #include "libiberty.h" |
252b5132 RH |
28 | |
29 | #ifndef S_IXUSR | |
30 | #define S_IXUSR 0100 /* Execute by owner. */ | |
31 | #endif | |
32 | #ifndef S_IXGRP | |
33 | #define S_IXGRP 0010 /* Execute by group. */ | |
34 | #endif | |
35 | #ifndef S_IXOTH | |
36 | #define S_IXOTH 0001 /* Execute by others. */ | |
37 | #endif | |
38 | ||
fc1cfaa5 | 39 | /* Counters used to initialize the bfd identifier. */ |
52b69c9e | 40 | |
fc1cfaa5 AM |
41 | static unsigned int bfd_id_counter = 0; |
42 | static unsigned int bfd_reserved_id_counter = 0; | |
43 | ||
44 | /* | |
45 | CODE_FRAGMENT | |
46 | .{* Set to N to open the next N BFDs using an alternate id space. *} | |
47 | .extern unsigned int bfd_use_reserved_id; | |
48 | */ | |
49 | unsigned int bfd_use_reserved_id = 0; | |
52b69c9e | 50 | |
252b5132 RH |
51 | /* fdopen is a loser -- we should use stdio exclusively. Unfortunately |
52 | if we do that we can't use fcntl. */ | |
53 | ||
252b5132 RH |
54 | /* Return a new BFD. All BFD's are allocated through this routine. */ |
55 | ||
56 | bfd * | |
c58b9523 | 57 | _bfd_new_bfd (void) |
252b5132 RH |
58 | { |
59 | bfd *nbfd; | |
60 | ||
a50b1753 | 61 | nbfd = (bfd *) bfd_zmalloc (sizeof (bfd)); |
252b5132 RH |
62 | if (nbfd == NULL) |
63 | return NULL; | |
64 | ||
fc1cfaa5 AM |
65 | if (bfd_use_reserved_id) |
66 | { | |
67 | nbfd->id = --bfd_reserved_id_counter; | |
68 | --bfd_use_reserved_id; | |
69 | } | |
70 | else | |
71 | nbfd->id = bfd_id_counter++; | |
52b69c9e | 72 | |
c58b9523 | 73 | nbfd->memory = objalloc_create (); |
252b5132 RH |
74 | if (nbfd->memory == NULL) |
75 | { | |
76 | bfd_set_error (bfd_error_no_memory); | |
73e87d70 | 77 | free (nbfd); |
252b5132 RH |
78 | return NULL; |
79 | } | |
80 | ||
81 | nbfd->arch_info = &bfd_default_arch_struct; | |
82 | ||
83 | nbfd->direction = no_direction; | |
84 | nbfd->iostream = NULL; | |
85 | nbfd->where = 0; | |
28d39d1a | 86 | if (!bfd_hash_table_init_n (& nbfd->section_htab, bfd_section_hash_newfunc, |
c9ba0c87 | 87 | sizeof (struct section_hash_entry), 13)) |
73e87d70 AM |
88 | { |
89 | free (nbfd); | |
90 | return NULL; | |
91 | } | |
c58b9523 | 92 | nbfd->sections = NULL; |
5daa8fe7 | 93 | nbfd->section_last = NULL; |
252b5132 | 94 | nbfd->format = bfd_unknown; |
c58b9523 | 95 | nbfd->my_archive = NULL; |
dc810e39 | 96 | nbfd->origin = 0; |
b34976b6 AM |
97 | nbfd->opened_once = FALSE; |
98 | nbfd->output_has_begun = FALSE; | |
252b5132 | 99 | nbfd->section_count = 0; |
c58b9523 | 100 | nbfd->usrdata = NULL; |
b34976b6 | 101 | nbfd->cacheable = FALSE; |
252b5132 | 102 | nbfd->flags = BFD_NO_FLAGS; |
b34976b6 | 103 | nbfd->mtime_set = FALSE; |
252b5132 RH |
104 | |
105 | return nbfd; | |
106 | } | |
107 | ||
b374d0f8 AM |
108 | static const struct bfd_iovec opncls_iovec; |
109 | ||
252b5132 RH |
110 | /* Allocate a new BFD as a member of archive OBFD. */ |
111 | ||
112 | bfd * | |
c58b9523 | 113 | _bfd_new_bfd_contained_in (bfd *obfd) |
252b5132 RH |
114 | { |
115 | bfd *nbfd; | |
116 | ||
117 | nbfd = _bfd_new_bfd (); | |
301e3139 AM |
118 | if (nbfd == NULL) |
119 | return NULL; | |
252b5132 | 120 | nbfd->xvec = obfd->xvec; |
40838a72 | 121 | nbfd->iovec = obfd->iovec; |
b374d0f8 AM |
122 | if (obfd->iovec == &opncls_iovec) |
123 | nbfd->iostream = obfd->iostream; | |
252b5132 RH |
124 | nbfd->my_archive = obfd; |
125 | nbfd->direction = read_direction; | |
126 | nbfd->target_defaulted = obfd->target_defaulted; | |
127 | return nbfd; | |
128 | } | |
129 | ||
73e87d70 AM |
130 | /* Delete a BFD. */ |
131 | ||
7b84f8da | 132 | static void |
c58b9523 | 133 | _bfd_delete_bfd (bfd *abfd) |
73e87d70 | 134 | { |
b25e3d87 L |
135 | if (abfd->memory) |
136 | { | |
137 | bfd_hash_table_free (&abfd->section_htab); | |
138 | objalloc_free ((struct objalloc *) abfd->memory); | |
139 | } | |
a988325c | 140 | |
06e7acd7 | 141 | free (abfd->arelt_data); |
73e87d70 AM |
142 | free (abfd); |
143 | } | |
144 | ||
b25e3d87 L |
145 | /* Free objalloc memory. */ |
146 | ||
147 | bfd_boolean | |
148 | _bfd_free_cached_info (bfd *abfd) | |
149 | { | |
150 | if (abfd->memory) | |
151 | { | |
152 | bfd_hash_table_free (&abfd->section_htab); | |
153 | objalloc_free ((struct objalloc *) abfd->memory); | |
154 | ||
155 | abfd->sections = NULL; | |
156 | abfd->section_last = NULL; | |
157 | abfd->outsymbols = NULL; | |
158 | abfd->tdata.any = NULL; | |
159 | abfd->usrdata = NULL; | |
160 | abfd->memory = NULL; | |
161 | } | |
162 | ||
163 | return TRUE; | |
164 | } | |
165 | ||
252b5132 RH |
166 | /* |
167 | SECTION | |
168 | Opening and closing BFDs | |
169 | ||
1b74d094 BW |
170 | SUBSECTION |
171 | Functions for opening and closing | |
252b5132 RH |
172 | */ |
173 | ||
174 | /* | |
175 | FUNCTION | |
2d0123b7 | 176 | bfd_fopen |
252b5132 RH |
177 | |
178 | SYNOPSIS | |
2d0123b7 MM |
179 | bfd *bfd_fopen (const char *filename, const char *target, |
180 | const char *mode, int fd); | |
252b5132 RH |
181 | |
182 | DESCRIPTION | |
2d0123b7 MM |
183 | Open the file @var{filename} with the target @var{target}. |
184 | Return a pointer to the created BFD. If @var{fd} is not -1, | |
185 | then <<fdopen>> is used to open the file; otherwise, <<fopen>> | |
186 | is used. @var{mode} is passed directly to <<fopen>> or | |
68ffbac6 | 187 | <<fdopen>>. |
252b5132 RH |
188 | |
189 | Calls <<bfd_find_target>>, so @var{target} is interpreted as by | |
190 | that function. | |
191 | ||
a366f4ff MM |
192 | The new BFD is marked as cacheable iff @var{fd} is -1. |
193 | ||
252b5132 | 194 | If <<NULL>> is returned then an error has occured. Possible errors |
7c4a37eb AM |
195 | are <<bfd_error_no_memory>>, <<bfd_error_invalid_target>> or |
196 | <<system_call>> error. | |
6f0c7050 TT |
197 | |
198 | On error, @var{fd} is always closed. | |
252b5132 RH |
199 | */ |
200 | ||
201 | bfd * | |
2d0123b7 | 202 | bfd_fopen (const char *filename, const char *target, const char *mode, int fd) |
252b5132 RH |
203 | { |
204 | bfd *nbfd; | |
205 | const bfd_target *target_vec; | |
206 | ||
207 | nbfd = _bfd_new_bfd (); | |
208 | if (nbfd == NULL) | |
6f0c7050 TT |
209 | { |
210 | if (fd != -1) | |
211 | close (fd); | |
212 | return NULL; | |
213 | } | |
252b5132 RH |
214 | |
215 | target_vec = bfd_find_target (target, nbfd); | |
216 | if (target_vec == NULL) | |
217 | { | |
6f0c7050 TT |
218 | if (fd != -1) |
219 | close (fd); | |
73e87d70 | 220 | _bfd_delete_bfd (nbfd); |
252b5132 RH |
221 | return NULL; |
222 | } | |
68ffbac6 | 223 | |
2d0123b7 MM |
224 | #ifdef HAVE_FDOPEN |
225 | if (fd != -1) | |
226 | nbfd->iostream = fdopen (fd, mode); | |
227 | else | |
228 | #endif | |
2e6f4fae | 229 | nbfd->iostream = real_fopen (filename, mode); |
2d0123b7 MM |
230 | if (nbfd->iostream == NULL) |
231 | { | |
92a7c1b8 | 232 | bfd_set_error (bfd_error_system_call); |
2d0123b7 MM |
233 | _bfd_delete_bfd (nbfd); |
234 | return NULL; | |
235 | } | |
252b5132 | 236 | |
2d0123b7 | 237 | /* OK, put everything where it belongs. */ |
252b5132 | 238 | nbfd->filename = filename; |
252b5132 | 239 | |
2d0123b7 MM |
240 | /* Figure out whether the user is opening the file for reading, |
241 | writing, or both, by looking at the MODE argument. */ | |
68ffbac6 | 242 | if ((mode[0] == 'r' || mode[0] == 'w' || mode[0] == 'a') |
2d0123b7 MM |
243 | && mode[1] == '+') |
244 | nbfd->direction = both_direction; | |
245 | else if (mode[0] == 'r') | |
246 | nbfd->direction = read_direction; | |
247 | else | |
248 | nbfd->direction = write_direction; | |
249 | ||
250 | if (! bfd_cache_init (nbfd)) | |
252b5132 | 251 | { |
73e87d70 | 252 | _bfd_delete_bfd (nbfd); |
252b5132 RH |
253 | return NULL; |
254 | } | |
2d0123b7 | 255 | nbfd->opened_once = TRUE; |
a253d456 | 256 | |
a366f4ff MM |
257 | /* If we opened the file by name, mark it cacheable; we can close it |
258 | and reopen it later. However, if a file descriptor was provided, | |
259 | then it may have been opened with special flags that make it | |
260 | unsafe to close and reopen the file. */ | |
261 | if (fd == -1) | |
a253d456 | 262 | (void) bfd_set_cacheable (nbfd, TRUE); |
252b5132 RH |
263 | |
264 | return nbfd; | |
265 | } | |
266 | ||
2d0123b7 MM |
267 | /* |
268 | FUNCTION | |
269 | bfd_openr | |
270 | ||
271 | SYNOPSIS | |
272 | bfd *bfd_openr (const char *filename, const char *target); | |
273 | ||
274 | DESCRIPTION | |
275 | Open the file @var{filename} (using <<fopen>>) with the target | |
276 | @var{target}. Return a pointer to the created BFD. | |
277 | ||
278 | Calls <<bfd_find_target>>, so @var{target} is interpreted as by | |
279 | that function. | |
280 | ||
281 | If <<NULL>> is returned then an error has occured. Possible errors | |
282 | are <<bfd_error_no_memory>>, <<bfd_error_invalid_target>> or | |
283 | <<system_call>> error. | |
284 | */ | |
285 | ||
286 | bfd * | |
287 | bfd_openr (const char *filename, const char *target) | |
288 | { | |
289 | return bfd_fopen (filename, target, FOPEN_RB, -1); | |
290 | } | |
291 | ||
252b5132 RH |
292 | /* Don't try to `optimize' this function: |
293 | ||
294 | o - We lock using stack space so that interrupting the locking | |
295 | won't cause a storage leak. | |
296 | o - We open the file stream last, since we don't want to have to | |
297 | close it if anything goes wrong. Closing the stream means closing | |
c4f3d130 | 298 | the file descriptor too, even though we didn't open it. */ |
252b5132 RH |
299 | /* |
300 | FUNCTION | |
7c4a37eb | 301 | bfd_fdopenr |
252b5132 RH |
302 | |
303 | SYNOPSIS | |
c58b9523 | 304 | bfd *bfd_fdopenr (const char *filename, const char *target, int fd); |
252b5132 RH |
305 | |
306 | DESCRIPTION | |
7c4a37eb AM |
307 | <<bfd_fdopenr>> is to <<bfd_fopenr>> much like <<fdopen>> is to |
308 | <<fopen>>. It opens a BFD on a file already described by the | |
309 | @var{fd} supplied. | |
310 | ||
311 | When the file is later <<bfd_close>>d, the file descriptor will | |
312 | be closed. If the caller desires that this file descriptor be | |
313 | cached by BFD (opened as needed, closed as needed to free | |
314 | descriptors for other opens), with the supplied @var{fd} used as | |
315 | an initial file descriptor (but subject to closure at any time), | |
316 | call bfd_set_cacheable(bfd, 1) on the returned BFD. The default | |
7dee875e | 317 | is to assume no caching; the file descriptor will remain open |
7c4a37eb AM |
318 | until <<bfd_close>>, and will not be affected by BFD operations |
319 | on other files. | |
320 | ||
321 | Possible errors are <<bfd_error_no_memory>>, | |
322 | <<bfd_error_invalid_target>> and <<bfd_error_system_call>>. | |
6f0c7050 TT |
323 | |
324 | On error, @var{fd} is closed. | |
252b5132 RH |
325 | */ |
326 | ||
327 | bfd * | |
c58b9523 | 328 | bfd_fdopenr (const char *filename, const char *target, int fd) |
252b5132 | 329 | { |
2d0123b7 MM |
330 | const char *mode; |
331 | #if defined(HAVE_FCNTL) && defined(F_GETFL) | |
252b5132 | 332 | int fdflags; |
2d0123b7 | 333 | #endif |
252b5132 | 334 | |
252b5132 | 335 | #if ! defined(HAVE_FCNTL) || ! defined(F_GETFL) |
2d0123b7 | 336 | mode = FOPEN_RUB; /* Assume full access. */ |
252b5132 RH |
337 | #else |
338 | fdflags = fcntl (fd, F_GETFL, NULL); | |
767e34d1 | 339 | if (fdflags == -1) |
d83747fa | 340 | { |
6f0c7050 TT |
341 | int save = errno; |
342 | ||
343 | close (fd); | |
344 | errno = save; | |
d83747fa AM |
345 | bfd_set_error (bfd_error_system_call); |
346 | return NULL; | |
347 | } | |
252b5132 | 348 | |
c4f3d130 | 349 | /* (O_ACCMODE) parens are to avoid Ultrix header file bug. */ |
252b5132 RH |
350 | switch (fdflags & (O_ACCMODE)) |
351 | { | |
dfab97d6 MM |
352 | case O_RDONLY: mode = FOPEN_RB; break; |
353 | case O_WRONLY: mode = FOPEN_RUB; break; | |
354 | case O_RDWR: mode = FOPEN_RUB; break; | |
252b5132 RH |
355 | default: abort (); |
356 | } | |
357 | #endif | |
358 | ||
2d0123b7 | 359 | return bfd_fopen (filename, target, mode, fd); |
252b5132 RH |
360 | } |
361 | ||
362 | /* | |
363 | FUNCTION | |
364 | bfd_openstreamr | |
365 | ||
366 | SYNOPSIS | |
c58b9523 | 367 | bfd *bfd_openstreamr (const char *, const char *, void *); |
252b5132 RH |
368 | |
369 | DESCRIPTION | |
370 | ||
371 | Open a BFD for read access on an existing stdio stream. When | |
372 | the BFD is passed to <<bfd_close>>, the stream will be closed. | |
373 | */ | |
374 | ||
375 | bfd * | |
c58b9523 | 376 | bfd_openstreamr (const char *filename, const char *target, void *streamarg) |
252b5132 | 377 | { |
a50b1753 | 378 | FILE *stream = (FILE *) streamarg; |
252b5132 RH |
379 | bfd *nbfd; |
380 | const bfd_target *target_vec; | |
381 | ||
382 | nbfd = _bfd_new_bfd (); | |
383 | if (nbfd == NULL) | |
384 | return NULL; | |
385 | ||
386 | target_vec = bfd_find_target (target, nbfd); | |
387 | if (target_vec == NULL) | |
388 | { | |
73e87d70 | 389 | _bfd_delete_bfd (nbfd); |
252b5132 RH |
390 | return NULL; |
391 | } | |
392 | ||
c58b9523 | 393 | nbfd->iostream = stream; |
252b5132 RH |
394 | nbfd->filename = filename; |
395 | nbfd->direction = read_direction; | |
dc810e39 | 396 | |
252b5132 RH |
397 | if (! bfd_cache_init (nbfd)) |
398 | { | |
73e87d70 | 399 | _bfd_delete_bfd (nbfd); |
252b5132 RH |
400 | return NULL; |
401 | } | |
402 | ||
403 | return nbfd; | |
404 | } | |
40838a72 AC |
405 | |
406 | /* | |
407 | FUNCTION | |
408 | bfd_openr_iovec | |
409 | ||
410 | SYNOPSIS | |
411 | bfd *bfd_openr_iovec (const char *filename, const char *target, | |
e7f8eadb DK |
412 | void *(*open_func) (struct bfd *nbfd, |
413 | void *open_closure), | |
40838a72 | 414 | void *open_closure, |
e7f8eadb DK |
415 | file_ptr (*pread_func) (struct bfd *nbfd, |
416 | void *stream, | |
417 | void *buf, | |
418 | file_ptr nbytes, | |
419 | file_ptr offset), | |
420 | int (*close_func) (struct bfd *nbfd, | |
421 | void *stream), | |
422 | int (*stat_func) (struct bfd *abfd, | |
423 | void *stream, | |
424 | struct stat *sb)); | |
40838a72 AC |
425 | |
426 | DESCRIPTION | |
427 | ||
428 | Create and return a BFD backed by a read-only @var{stream}. | |
e7f8eadb DK |
429 | The @var{stream} is created using @var{open_func}, accessed using |
430 | @var{pread_func} and destroyed using @var{close_func}. | |
40838a72 AC |
431 | |
432 | Calls <<bfd_find_target>>, so @var{target} is interpreted as by | |
433 | that function. | |
434 | ||
e7f8eadb | 435 | Calls @var{open_func} (which can call <<bfd_zalloc>> and |
40838a72 | 436 | <<bfd_get_filename>>) to obtain the read-only stream backing |
e7f8eadb | 437 | the BFD. @var{open_func} either succeeds returning the |
40838a72 AC |
438 | non-<<NULL>> @var{stream}, or fails returning <<NULL>> |
439 | (setting <<bfd_error>>). | |
440 | ||
e7f8eadb | 441 | Calls @var{pread_func} to request @var{nbytes} of data from |
40838a72 | 442 | @var{stream} starting at @var{offset} (e.g., via a call to |
e7f8eadb | 443 | <<bfd_read>>). @var{pread_func} either succeeds returning the |
40838a72 AC |
444 | number of bytes read (which can be less than @var{nbytes} when |
445 | end-of-file), or fails returning -1 (setting <<bfd_error>>). | |
446 | ||
e7f8eadb DK |
447 | Calls @var{close_func} when the BFD is later closed using |
448 | <<bfd_close>>. @var{close_func} either succeeds returning 0, or | |
40838a72 AC |
449 | fails returning -1 (setting <<bfd_error>>). |
450 | ||
e7f8eadb DK |
451 | Calls @var{stat_func} to fill in a stat structure for bfd_stat, |
452 | bfd_get_size, and bfd_get_mtime calls. @var{stat_func} returns 0 | |
f6cf9273 AM |
453 | on success, or returns -1 on failure (setting <<bfd_error>>). |
454 | ||
40838a72 AC |
455 | If <<bfd_openr_iovec>> returns <<NULL>> then an error has |
456 | occurred. Possible errors are <<bfd_error_no_memory>>, | |
457 | <<bfd_error_invalid_target>> and <<bfd_error_system_call>>. | |
458 | ||
459 | */ | |
460 | ||
461 | struct opncls | |
462 | { | |
463 | void *stream; | |
464 | file_ptr (*pread) (struct bfd *abfd, void *stream, void *buf, | |
465 | file_ptr nbytes, file_ptr offset); | |
466 | int (*close) (struct bfd *abfd, void *stream); | |
f6cf9273 | 467 | int (*stat) (struct bfd *abfd, void *stream, struct stat *sb); |
40838a72 AC |
468 | file_ptr where; |
469 | }; | |
470 | ||
471 | static file_ptr | |
472 | opncls_btell (struct bfd *abfd) | |
473 | { | |
a50b1753 | 474 | struct opncls *vec = (struct opncls *) abfd->iostream; |
40838a72 AC |
475 | return vec->where; |
476 | } | |
477 | ||
478 | static int | |
479 | opncls_bseek (struct bfd *abfd, file_ptr offset, int whence) | |
480 | { | |
a50b1753 | 481 | struct opncls *vec = (struct opncls *) abfd->iostream; |
40838a72 AC |
482 | switch (whence) |
483 | { | |
484 | case SEEK_SET: vec->where = offset; break; | |
485 | case SEEK_CUR: vec->where += offset; break; | |
486 | case SEEK_END: return -1; | |
487 | } | |
488 | return 0; | |
489 | } | |
490 | ||
491 | static file_ptr | |
492 | opncls_bread (struct bfd *abfd, void *buf, file_ptr nbytes) | |
493 | { | |
a50b1753 | 494 | struct opncls *vec = (struct opncls *) abfd->iostream; |
0709bb22 | 495 | file_ptr nread = (vec->pread) (abfd, vec->stream, buf, nbytes, vec->where); |
40838a72 AC |
496 | if (nread < 0) |
497 | return nread; | |
498 | vec->where += nread; | |
499 | return nread; | |
500 | } | |
501 | ||
502 | static file_ptr | |
503 | opncls_bwrite (struct bfd *abfd ATTRIBUTE_UNUSED, | |
504 | const void *where ATTRIBUTE_UNUSED, | |
505 | file_ptr nbytes ATTRIBUTE_UNUSED) | |
506 | { | |
507 | return -1; | |
508 | } | |
509 | ||
405bf443 | 510 | static int |
40838a72 AC |
511 | opncls_bclose (struct bfd *abfd) |
512 | { | |
a50b1753 | 513 | struct opncls *vec = (struct opncls *) abfd->iostream; |
40838a72 AC |
514 | /* Since the VEC's memory is bound to the bfd deleting the bfd will |
515 | free it. */ | |
516 | int status = 0; | |
517 | if (vec->close != NULL) | |
0709bb22 | 518 | status = (vec->close) (abfd, vec->stream); |
40838a72 | 519 | abfd->iostream = NULL; |
405bf443 | 520 | return status; |
40838a72 AC |
521 | } |
522 | ||
523 | static int | |
524 | opncls_bflush (struct bfd *abfd ATTRIBUTE_UNUSED) | |
525 | { | |
526 | return 0; | |
527 | } | |
528 | ||
529 | static int | |
f6cf9273 | 530 | opncls_bstat (struct bfd *abfd, struct stat *sb) |
40838a72 | 531 | { |
a50b1753 | 532 | struct opncls *vec = (struct opncls *) abfd->iostream; |
f6cf9273 | 533 | |
40838a72 | 534 | memset (sb, 0, sizeof (*sb)); |
f6cf9273 AM |
535 | if (vec->stat == NULL) |
536 | return 0; | |
537 | ||
538 | return (vec->stat) (abfd, vec->stream, sb); | |
40838a72 AC |
539 | } |
540 | ||
25b88f33 PP |
541 | static void * |
542 | opncls_bmmap (struct bfd *abfd ATTRIBUTE_UNUSED, | |
543 | void *addr ATTRIBUTE_UNUSED, | |
544 | bfd_size_type len ATTRIBUTE_UNUSED, | |
545 | int prot ATTRIBUTE_UNUSED, | |
546 | int flags ATTRIBUTE_UNUSED, | |
4c95ab76 TG |
547 | file_ptr offset ATTRIBUTE_UNUSED, |
548 | void **map_addr ATTRIBUTE_UNUSED, | |
549 | bfd_size_type *map_len ATTRIBUTE_UNUSED) | |
25b88f33 PP |
550 | { |
551 | return (void *) -1; | |
552 | } | |
553 | ||
40838a72 AC |
554 | static const struct bfd_iovec opncls_iovec = { |
555 | &opncls_bread, &opncls_bwrite, &opncls_btell, &opncls_bseek, | |
25b88f33 | 556 | &opncls_bclose, &opncls_bflush, &opncls_bstat, &opncls_bmmap |
40838a72 AC |
557 | }; |
558 | ||
559 | bfd * | |
560 | bfd_openr_iovec (const char *filename, const char *target, | |
662e4701 | 561 | void *(*open_p) (struct bfd *, void *), |
40838a72 | 562 | void *open_closure, |
662e4701 L |
563 | file_ptr (*pread_p) (struct bfd *, void *, void *, |
564 | file_ptr, file_ptr), | |
565 | int (*close_p) (struct bfd *, void *), | |
566 | int (*stat_p) (struct bfd *, void *, struct stat *)) | |
40838a72 AC |
567 | { |
568 | bfd *nbfd; | |
569 | const bfd_target *target_vec; | |
570 | struct opncls *vec; | |
571 | void *stream; | |
572 | ||
573 | nbfd = _bfd_new_bfd (); | |
574 | if (nbfd == NULL) | |
575 | return NULL; | |
576 | ||
577 | target_vec = bfd_find_target (target, nbfd); | |
578 | if (target_vec == NULL) | |
579 | { | |
580 | _bfd_delete_bfd (nbfd); | |
581 | return NULL; | |
582 | } | |
583 | ||
584 | nbfd->filename = filename; | |
585 | nbfd->direction = read_direction; | |
586 | ||
662e4701 L |
587 | /* `open_p (...)' would get expanded by an the open(2) syscall macro. */ |
588 | stream = (*open_p) (nbfd, open_closure); | |
40838a72 AC |
589 | if (stream == NULL) |
590 | { | |
591 | _bfd_delete_bfd (nbfd); | |
592 | return NULL; | |
593 | } | |
594 | ||
a50b1753 | 595 | vec = (struct opncls *) bfd_zalloc (nbfd, sizeof (struct opncls)); |
40838a72 | 596 | vec->stream = stream; |
662e4701 L |
597 | vec->pread = pread_p; |
598 | vec->close = close_p; | |
599 | vec->stat = stat_p; | |
40838a72 AC |
600 | |
601 | nbfd->iovec = &opncls_iovec; | |
602 | nbfd->iostream = vec; | |
603 | ||
604 | return nbfd; | |
605 | } | |
252b5132 | 606 | \f |
c4f3d130 NC |
607 | /* bfd_openw -- open for writing. |
608 | Returns a pointer to a freshly-allocated BFD on success, or NULL. | |
252b5132 | 609 | |
c4f3d130 | 610 | See comment by bfd_fdopenr before you try to modify this function. */ |
252b5132 RH |
611 | |
612 | /* | |
613 | FUNCTION | |
614 | bfd_openw | |
615 | ||
616 | SYNOPSIS | |
c58b9523 | 617 | bfd *bfd_openw (const char *filename, const char *target); |
252b5132 RH |
618 | |
619 | DESCRIPTION | |
620 | Create a BFD, associated with file @var{filename}, using the | |
621 | file format @var{target}, and return a pointer to it. | |
622 | ||
623 | Possible errors are <<bfd_error_system_call>>, <<bfd_error_no_memory>>, | |
624 | <<bfd_error_invalid_target>>. | |
625 | */ | |
626 | ||
627 | bfd * | |
c58b9523 | 628 | bfd_openw (const char *filename, const char *target) |
252b5132 RH |
629 | { |
630 | bfd *nbfd; | |
631 | const bfd_target *target_vec; | |
632 | ||
252b5132 | 633 | /* nbfd has to point to head of malloc'ed block so that bfd_close may |
c4f3d130 | 634 | reclaim it correctly. */ |
252b5132 RH |
635 | nbfd = _bfd_new_bfd (); |
636 | if (nbfd == NULL) | |
637 | return NULL; | |
638 | ||
639 | target_vec = bfd_find_target (target, nbfd); | |
640 | if (target_vec == NULL) | |
641 | { | |
73e87d70 | 642 | _bfd_delete_bfd (nbfd); |
252b5132 RH |
643 | return NULL; |
644 | } | |
645 | ||
646 | nbfd->filename = filename; | |
647 | nbfd->direction = write_direction; | |
648 | ||
649 | if (bfd_open_file (nbfd) == NULL) | |
650 | { | |
c4f3d130 NC |
651 | /* File not writeable, etc. */ |
652 | bfd_set_error (bfd_error_system_call); | |
73e87d70 | 653 | _bfd_delete_bfd (nbfd); |
252b5132 RH |
654 | return NULL; |
655 | } | |
656 | ||
657 | return nbfd; | |
658 | } | |
659 | ||
8c7d38e8 NC |
660 | static inline void |
661 | _maybe_make_executable (bfd * abfd) | |
662 | { | |
663 | /* If the file was open for writing and is now executable, | |
664 | make it so. */ | |
665 | if (abfd->direction == write_direction | |
dbde1c12 | 666 | && (abfd->flags & (EXEC_P | DYNAMIC)) != 0) |
8c7d38e8 NC |
667 | { |
668 | struct stat buf; | |
669 | ||
670 | if (stat (abfd->filename, &buf) == 0 | |
671 | /* Do not attempt to change non-regular files. This is | |
672 | here especially for configure scripts and kernel builds | |
673 | which run tests with "ld [...] -o /dev/null". */ | |
674 | && S_ISREG(buf.st_mode)) | |
675 | { | |
676 | unsigned int mask = umask (0); | |
677 | ||
678 | umask (mask); | |
679 | chmod (abfd->filename, | |
680 | (0777 | |
681 | & (buf.st_mode | ((S_IXUSR | S_IXGRP | S_IXOTH) &~ mask)))); | |
682 | } | |
683 | } | |
684 | } | |
685 | ||
252b5132 RH |
686 | /* |
687 | ||
688 | FUNCTION | |
689 | bfd_close | |
690 | ||
691 | SYNOPSIS | |
b34976b6 | 692 | bfd_boolean bfd_close (bfd *abfd); |
252b5132 RH |
693 | |
694 | DESCRIPTION | |
695 | ||
7c4a37eb AM |
696 | Close a BFD. If the BFD was open for writing, then pending |
697 | operations are completed and the file written out and closed. | |
698 | If the created file is executable, then <<chmod>> is called | |
699 | to mark it as such. | |
252b5132 RH |
700 | |
701 | All memory attached to the BFD is released. | |
702 | ||
703 | The file descriptor associated with the BFD is closed (even | |
704 | if it was passed in to BFD by <<bfd_fdopenr>>). | |
705 | ||
706 | RETURNS | |
b34976b6 | 707 | <<TRUE>> is returned if all is ok, otherwise <<FALSE>>. |
252b5132 RH |
708 | */ |
709 | ||
710 | ||
b34976b6 | 711 | bfd_boolean |
c58b9523 | 712 | bfd_close (bfd *abfd) |
252b5132 | 713 | { |
b34976b6 | 714 | bfd_boolean ret; |
252b5132 | 715 | |
c4f3d130 | 716 | if (bfd_write_p (abfd)) |
252b5132 RH |
717 | { |
718 | if (! BFD_SEND_FMT (abfd, _bfd_write_contents, (abfd))) | |
b34976b6 | 719 | return FALSE; |
252b5132 RH |
720 | } |
721 | ||
722 | if (! BFD_SEND (abfd, _close_and_cleanup, (abfd))) | |
b34976b6 | 723 | return FALSE; |
252b5132 | 724 | |
405bf443 | 725 | ret = abfd->iovec->bclose (abfd) == 0; |
252b5132 | 726 | |
8c7d38e8 NC |
727 | if (ret) |
728 | _maybe_make_executable (abfd); | |
252b5132 | 729 | |
73e87d70 | 730 | _bfd_delete_bfd (abfd); |
252b5132 RH |
731 | |
732 | return ret; | |
733 | } | |
734 | ||
735 | /* | |
736 | FUNCTION | |
737 | bfd_close_all_done | |
738 | ||
739 | SYNOPSIS | |
b34976b6 | 740 | bfd_boolean bfd_close_all_done (bfd *); |
252b5132 RH |
741 | |
742 | DESCRIPTION | |
7c4a37eb AM |
743 | Close a BFD. Differs from <<bfd_close>> since it does not |
744 | complete any pending operations. This routine would be used | |
745 | if the application had just used BFD for swapping and didn't | |
746 | want to use any of the writing code. | |
252b5132 RH |
747 | |
748 | If the created file is executable, then <<chmod>> is called | |
749 | to mark it as such. | |
750 | ||
751 | All memory attached to the BFD is released. | |
752 | ||
753 | RETURNS | |
b34976b6 | 754 | <<TRUE>> is returned if all is ok, otherwise <<FALSE>>. |
252b5132 RH |
755 | */ |
756 | ||
b34976b6 | 757 | bfd_boolean |
c58b9523 | 758 | bfd_close_all_done (bfd *abfd) |
252b5132 | 759 | { |
b34976b6 | 760 | bfd_boolean ret; |
252b5132 RH |
761 | |
762 | ret = bfd_cache_close (abfd); | |
763 | ||
8c7d38e8 NC |
764 | if (ret) |
765 | _maybe_make_executable (abfd); | |
252b5132 | 766 | |
73e87d70 | 767 | _bfd_delete_bfd (abfd); |
252b5132 RH |
768 | |
769 | return ret; | |
770 | } | |
771 | ||
772 | /* | |
773 | FUNCTION | |
774 | bfd_create | |
775 | ||
776 | SYNOPSIS | |
c58b9523 | 777 | bfd *bfd_create (const char *filename, bfd *templ); |
252b5132 RH |
778 | |
779 | DESCRIPTION | |
7c4a37eb AM |
780 | Create a new BFD in the manner of <<bfd_openw>>, but without |
781 | opening a file. The new BFD takes the target from the target | |
fc1cfaa5 | 782 | used by @var{templ}. The format is always set to <<bfd_object>>. |
252b5132 RH |
783 | */ |
784 | ||
785 | bfd * | |
c58b9523 | 786 | bfd_create (const char *filename, bfd *templ) |
252b5132 RH |
787 | { |
788 | bfd *nbfd; | |
789 | ||
790 | nbfd = _bfd_new_bfd (); | |
791 | if (nbfd == NULL) | |
792 | return NULL; | |
793 | nbfd->filename = filename; | |
794 | if (templ) | |
795 | nbfd->xvec = templ->xvec; | |
796 | nbfd->direction = no_direction; | |
797 | bfd_set_format (nbfd, bfd_object); | |
c4f3d130 | 798 | |
252b5132 RH |
799 | return nbfd; |
800 | } | |
801 | ||
802 | /* | |
803 | FUNCTION | |
804 | bfd_make_writable | |
805 | ||
806 | SYNOPSIS | |
b34976b6 | 807 | bfd_boolean bfd_make_writable (bfd *abfd); |
252b5132 RH |
808 | |
809 | DESCRIPTION | |
810 | Takes a BFD as created by <<bfd_create>> and converts it | |
811 | into one like as returned by <<bfd_openw>>. It does this | |
812 | by converting the BFD to BFD_IN_MEMORY. It's assumed that | |
813 | you will call <<bfd_make_readable>> on this bfd later. | |
814 | ||
815 | RETURNS | |
b34976b6 | 816 | <<TRUE>> is returned if all is ok, otherwise <<FALSE>>. |
252b5132 RH |
817 | */ |
818 | ||
b34976b6 | 819 | bfd_boolean |
c58b9523 | 820 | bfd_make_writable (bfd *abfd) |
252b5132 RH |
821 | { |
822 | struct bfd_in_memory *bim; | |
823 | ||
824 | if (abfd->direction != no_direction) | |
825 | { | |
826 | bfd_set_error (bfd_error_invalid_operation); | |
b34976b6 | 827 | return FALSE; |
252b5132 RH |
828 | } |
829 | ||
a50b1753 | 830 | bim = (struct bfd_in_memory *) bfd_malloc (sizeof (struct bfd_in_memory)); |
f6eea5ae MS |
831 | if (bim == NULL) |
832 | return FALSE; /* bfd_error already set. */ | |
c58b9523 | 833 | abfd->iostream = bim; |
c4f3d130 | 834 | /* bfd_bwrite will grow these as needed. */ |
252b5132 RH |
835 | bim->size = 0; |
836 | bim->buffer = 0; | |
837 | ||
838 | abfd->flags |= BFD_IN_MEMORY; | |
65077aa8 TG |
839 | abfd->iovec = &_bfd_memory_iovec; |
840 | abfd->origin = 0; | |
252b5132 RH |
841 | abfd->direction = write_direction; |
842 | abfd->where = 0; | |
843 | ||
b34976b6 | 844 | return TRUE; |
252b5132 RH |
845 | } |
846 | ||
847 | /* | |
848 | FUNCTION | |
849 | bfd_make_readable | |
850 | ||
851 | SYNOPSIS | |
b34976b6 | 852 | bfd_boolean bfd_make_readable (bfd *abfd); |
252b5132 RH |
853 | |
854 | DESCRIPTION | |
855 | Takes a BFD as created by <<bfd_create>> and | |
856 | <<bfd_make_writable>> and converts it into one like as | |
857 | returned by <<bfd_openr>>. It does this by writing the | |
858 | contents out to the memory buffer, then reversing the | |
859 | direction. | |
860 | ||
861 | RETURNS | |
b34976b6 | 862 | <<TRUE>> is returned if all is ok, otherwise <<FALSE>>. */ |
252b5132 | 863 | |
b34976b6 | 864 | bfd_boolean |
c58b9523 | 865 | bfd_make_readable (bfd *abfd) |
252b5132 RH |
866 | { |
867 | if (abfd->direction != write_direction || !(abfd->flags & BFD_IN_MEMORY)) | |
868 | { | |
869 | bfd_set_error (bfd_error_invalid_operation); | |
b34976b6 | 870 | return FALSE; |
252b5132 RH |
871 | } |
872 | ||
873 | if (! BFD_SEND_FMT (abfd, _bfd_write_contents, (abfd))) | |
b34976b6 | 874 | return FALSE; |
252b5132 RH |
875 | |
876 | if (! BFD_SEND (abfd, _close_and_cleanup, (abfd))) | |
b34976b6 | 877 | return FALSE; |
252b5132 | 878 | |
252b5132 RH |
879 | abfd->arch_info = &bfd_default_arch_struct; |
880 | ||
881 | abfd->where = 0; | |
252b5132 | 882 | abfd->format = bfd_unknown; |
c58b9523 | 883 | abfd->my_archive = NULL; |
dc810e39 | 884 | abfd->origin = 0; |
b34976b6 AM |
885 | abfd->opened_once = FALSE; |
886 | abfd->output_has_begun = FALSE; | |
252b5132 | 887 | abfd->section_count = 0; |
c58b9523 | 888 | abfd->usrdata = NULL; |
b34976b6 | 889 | abfd->cacheable = FALSE; |
9e2278f5 | 890 | abfd->flags |= BFD_IN_MEMORY; |
b34976b6 | 891 | abfd->mtime_set = FALSE; |
252b5132 | 892 | |
b34976b6 | 893 | abfd->target_defaulted = TRUE; |
252b5132 RH |
894 | abfd->direction = read_direction; |
895 | abfd->sections = 0; | |
896 | abfd->symcount = 0; | |
897 | abfd->outsymbols = 0; | |
898 | abfd->tdata.any = 0; | |
899 | ||
e54fdaa5 AM |
900 | bfd_section_list_clear (abfd); |
901 | bfd_check_format (abfd, bfd_object); | |
252b5132 | 902 | |
b34976b6 | 903 | return TRUE; |
252b5132 RH |
904 | } |
905 | ||
906 | /* | |
59a9808d | 907 | FUNCTION |
252b5132 RH |
908 | bfd_alloc |
909 | ||
910 | SYNOPSIS | |
0fdea5ce | 911 | void *bfd_alloc (bfd *abfd, bfd_size_type wanted); |
252b5132 RH |
912 | |
913 | DESCRIPTION | |
914 | Allocate a block of @var{wanted} bytes of memory attached to | |
915 | <<abfd>> and return a pointer to it. | |
916 | */ | |
917 | ||
c58b9523 AM |
918 | void * |
919 | bfd_alloc (bfd *abfd, bfd_size_type size) | |
252b5132 | 920 | { |
c58b9523 | 921 | void *ret; |
252b5132 | 922 | |
dc810e39 AM |
923 | if (size != (unsigned long) size) |
924 | { | |
925 | bfd_set_error (bfd_error_no_memory); | |
926 | return NULL; | |
927 | } | |
928 | ||
a50b1753 | 929 | ret = objalloc_alloc ((struct objalloc *) abfd->memory, (unsigned long) size); |
252b5132 RH |
930 | if (ret == NULL) |
931 | bfd_set_error (bfd_error_no_memory); | |
932 | return ret; | |
933 | } | |
934 | ||
d0fb9a8d JJ |
935 | /* |
936 | INTERNAL_FUNCTION | |
937 | bfd_alloc2 | |
938 | ||
939 | SYNOPSIS | |
940 | void *bfd_alloc2 (bfd *abfd, bfd_size_type nmemb, bfd_size_type size); | |
941 | ||
942 | DESCRIPTION | |
943 | Allocate a block of @var{nmemb} elements of @var{size} bytes each | |
944 | of memory attached to <<abfd>> and return a pointer to it. | |
945 | */ | |
946 | ||
947 | void * | |
948 | bfd_alloc2 (bfd *abfd, bfd_size_type nmemb, bfd_size_type size) | |
949 | { | |
950 | void *ret; | |
951 | ||
952 | if ((nmemb | size) >= HALF_BFD_SIZE_TYPE | |
953 | && size != 0 | |
954 | && nmemb > ~(bfd_size_type) 0 / size) | |
955 | { | |
956 | bfd_set_error (bfd_error_no_memory); | |
957 | return NULL; | |
958 | } | |
959 | ||
960 | size *= nmemb; | |
961 | ||
962 | if (size != (unsigned long) size) | |
963 | { | |
964 | bfd_set_error (bfd_error_no_memory); | |
965 | return NULL; | |
966 | } | |
967 | ||
a50b1753 | 968 | ret = objalloc_alloc ((struct objalloc *) abfd->memory, (unsigned long) size); |
d0fb9a8d JJ |
969 | if (ret == NULL) |
970 | bfd_set_error (bfd_error_no_memory); | |
971 | return ret; | |
972 | } | |
973 | ||
c3e8c140 | 974 | /* |
59a9808d | 975 | FUNCTION |
c3e8c140 BE |
976 | bfd_zalloc |
977 | ||
978 | SYNOPSIS | |
979 | void *bfd_zalloc (bfd *abfd, bfd_size_type wanted); | |
980 | ||
981 | DESCRIPTION | |
982 | Allocate a block of @var{wanted} bytes of zeroed memory | |
983 | attached to <<abfd>> and return a pointer to it. | |
984 | */ | |
985 | ||
c58b9523 AM |
986 | void * |
987 | bfd_zalloc (bfd *abfd, bfd_size_type size) | |
252b5132 | 988 | { |
c58b9523 | 989 | void *res; |
252b5132 RH |
990 | |
991 | res = bfd_alloc (abfd, size); | |
992 | if (res) | |
dc810e39 | 993 | memset (res, 0, (size_t) size); |
252b5132 RH |
994 | return res; |
995 | } | |
996 | ||
d0fb9a8d JJ |
997 | /* |
998 | INTERNAL_FUNCTION | |
999 | bfd_zalloc2 | |
1000 | ||
1001 | SYNOPSIS | |
1002 | void *bfd_zalloc2 (bfd *abfd, bfd_size_type nmemb, bfd_size_type size); | |
1003 | ||
1004 | DESCRIPTION | |
1005 | Allocate a block of @var{nmemb} elements of @var{size} bytes each | |
1006 | of zeroed memory attached to <<abfd>> and return a pointer to it. | |
1007 | */ | |
1008 | ||
1009 | void * | |
1010 | bfd_zalloc2 (bfd *abfd, bfd_size_type nmemb, bfd_size_type size) | |
1011 | { | |
1012 | void *res; | |
1013 | ||
1014 | if ((nmemb | size) >= HALF_BFD_SIZE_TYPE | |
1015 | && size != 0 | |
1016 | && nmemb > ~(bfd_size_type) 0 / size) | |
1017 | { | |
1018 | bfd_set_error (bfd_error_no_memory); | |
1019 | return NULL; | |
1020 | } | |
1021 | ||
1022 | size *= nmemb; | |
1023 | ||
1024 | res = bfd_alloc (abfd, size); | |
1025 | if (res) | |
1026 | memset (res, 0, (size_t) size); | |
1027 | return res; | |
1028 | } | |
1029 | ||
73e87d70 AM |
1030 | /* Free a block allocated for a BFD. |
1031 | Note: Also frees all more recently allocated blocks! */ | |
252b5132 RH |
1032 | |
1033 | void | |
c58b9523 | 1034 | bfd_release (bfd *abfd, void *block) |
252b5132 RH |
1035 | { |
1036 | objalloc_free_block ((struct objalloc *) abfd->memory, block); | |
1037 | } | |
31f7ba04 NC |
1038 | |
1039 | ||
f12123c0 AM |
1040 | /* |
1041 | GNU Extension: separate debug-info files | |
1042 | ||
31f7ba04 NC |
1043 | The idea here is that a special section called .gnu_debuglink might be |
1044 | embedded in a binary file, which indicates that some *other* file | |
1045 | contains the real debugging information. This special section contains a | |
1046 | filename and CRC32 checksum, which we read and resolve to another file, | |
1047 | if it exists. | |
1048 | ||
1049 | This facilitates "optional" provision of debugging information, without | |
1050 | having to provide two complete copies of every binary object (with and | |
1051 | without debug symbols). | |
1052 | */ | |
1053 | ||
2593f09a | 1054 | #define GNU_DEBUGLINK ".gnu_debuglink" |
31f7ba04 | 1055 | /* |
2593f09a NC |
1056 | FUNCTION |
1057 | bfd_calc_gnu_debuglink_crc32 | |
31f7ba04 NC |
1058 | |
1059 | SYNOPSIS | |
c58b9523 AM |
1060 | unsigned long bfd_calc_gnu_debuglink_crc32 |
1061 | (unsigned long crc, const unsigned char *buf, bfd_size_type len); | |
31f7ba04 NC |
1062 | |
1063 | DESCRIPTION | |
2593f09a NC |
1064 | Computes a CRC value as used in the .gnu_debuglink section. |
1065 | Advances the previously computed @var{crc} value by computing | |
1066 | and adding in the crc32 for @var{len} bytes of @var{buf}. | |
1067 | ||
1068 | RETURNS | |
1069 | Return the updated CRC32 value. | |
f12123c0 | 1070 | */ |
31f7ba04 | 1071 | |
2593f09a | 1072 | unsigned long |
c58b9523 AM |
1073 | bfd_calc_gnu_debuglink_crc32 (unsigned long crc, |
1074 | const unsigned char *buf, | |
1075 | bfd_size_type len) | |
31f7ba04 NC |
1076 | { |
1077 | static const unsigned long crc32_table[256] = | |
1078 | { | |
1079 | 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, | |
1080 | 0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4, | |
1081 | 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, | |
1082 | 0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de, | |
1083 | 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856, | |
1084 | 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9, | |
1085 | 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4, | |
1086 | 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, | |
1087 | 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, | |
1088 | 0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a, | |
1089 | 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599, | |
1090 | 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924, | |
1091 | 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190, | |
1092 | 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, | |
1093 | 0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e, | |
1094 | 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01, | |
1095 | 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed, | |
1096 | 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950, | |
1097 | 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, | |
1098 | 0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, | |
1099 | 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, | |
1100 | 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5, | |
1101 | 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010, | |
1102 | 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f, | |
1103 | 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, | |
1104 | 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, | |
1105 | 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615, | |
1106 | 0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8, | |
1107 | 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344, | |
1108 | 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb, | |
1109 | 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, | |
1110 | 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, | |
1111 | 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, | |
1112 | 0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c, | |
1113 | 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef, | |
1114 | 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236, | |
1115 | 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, | |
1116 | 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, | |
1117 | 0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c, | |
1118 | 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713, | |
1119 | 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b, | |
1120 | 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242, | |
1121 | 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, | |
1122 | 0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, | |
1123 | 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278, | |
1124 | 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7, | |
1125 | 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66, | |
1126 | 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9, | |
1127 | 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, | |
1128 | 0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, | |
1129 | 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, | |
1130 | 0x2d02ef8d | |
1131 | }; | |
1132 | const unsigned char *end; | |
1133 | ||
1134 | crc = ~crc & 0xffffffff; | |
1135 | for (end = buf + len; buf < end; ++ buf) | |
1136 | crc = crc32_table[(crc ^ *buf) & 0xff] ^ (crc >> 8); | |
5bb3703f | 1137 | return ~crc & 0xffffffff; |
31f7ba04 NC |
1138 | } |
1139 | ||
1140 | ||
1141 | /* | |
cc0ea93c TT |
1142 | FUNCTION |
1143 | bfd_get_debug_link_info | |
31f7ba04 NC |
1144 | |
1145 | SYNOPSIS | |
cc0ea93c | 1146 | char *bfd_get_debug_link_info (bfd *abfd, unsigned long *crc32_out); |
31f7ba04 NC |
1147 | |
1148 | DESCRIPTION | |
1149 | fetch the filename and CRC32 value for any separate debuginfo | |
1150 | associated with @var{abfd}. Return NULL if no such info found, | |
cc0ea93c TT |
1151 | otherwise return filename and update @var{crc32_out}. The |
1152 | returned filename is allocated with @code{malloc}; freeing it | |
1153 | is the responsibility of the caller. | |
31f7ba04 NC |
1154 | */ |
1155 | ||
cc0ea93c TT |
1156 | char * |
1157 | bfd_get_debug_link_info (bfd *abfd, unsigned long *crc32_out) | |
31f7ba04 | 1158 | { |
eea6121a | 1159 | asection *sect; |
31f7ba04 | 1160 | unsigned long crc32; |
eea6121a | 1161 | bfd_byte *contents; |
31f7ba04 | 1162 | int crc_offset; |
f075ee0c | 1163 | char *name; |
31f7ba04 NC |
1164 | |
1165 | BFD_ASSERT (abfd); | |
1166 | BFD_ASSERT (crc32_out); | |
1167 | ||
2593f09a | 1168 | sect = bfd_get_section_by_name (abfd, GNU_DEBUGLINK); |
31f7ba04 NC |
1169 | |
1170 | if (sect == NULL) | |
1171 | return NULL; | |
1172 | ||
eea6121a | 1173 | if (!bfd_malloc_and_get_section (abfd, sect, &contents)) |
31f7ba04 | 1174 | { |
eea6121a AM |
1175 | if (contents != NULL) |
1176 | free (contents); | |
31f7ba04 NC |
1177 | return NULL; |
1178 | } | |
1179 | ||
1180 | /* Crc value is stored after the filename, aligned up to 4 bytes. */ | |
f075ee0c AM |
1181 | name = (char *) contents; |
1182 | crc_offset = strlen (name) + 1; | |
31f7ba04 NC |
1183 | crc_offset = (crc_offset + 3) & ~3; |
1184 | ||
c58b9523 | 1185 | crc32 = bfd_get_32 (abfd, contents + crc_offset); |
31f7ba04 NC |
1186 | |
1187 | *crc32_out = crc32; | |
f075ee0c | 1188 | return name; |
31f7ba04 NC |
1189 | } |
1190 | ||
1191 | /* | |
1192 | INTERNAL_FUNCTION | |
1193 | separate_debug_file_exists | |
1194 | ||
1195 | SYNOPSIS | |
c58b9523 AM |
1196 | bfd_boolean separate_debug_file_exists |
1197 | (char *name, unsigned long crc32); | |
31f7ba04 NC |
1198 | |
1199 | DESCRIPTION | |
1200 | Checks to see if @var{name} is a file and if its contents | |
1201 | match @var{crc32}. | |
1202 | */ | |
1203 | ||
1204 | static bfd_boolean | |
c58b9523 | 1205 | separate_debug_file_exists (const char *name, const unsigned long crc) |
31f7ba04 | 1206 | { |
f075ee0c | 1207 | static unsigned char buffer [8 * 1024]; |
31f7ba04 | 1208 | unsigned long file_crc = 0; |
fed590bb | 1209 | FILE *f; |
2593f09a | 1210 | bfd_size_type count; |
31f7ba04 NC |
1211 | |
1212 | BFD_ASSERT (name); | |
1213 | ||
fed590bb AM |
1214 | f = real_fopen (name, FOPEN_RB); |
1215 | if (f == NULL) | |
31f7ba04 NC |
1216 | return FALSE; |
1217 | ||
fed590bb | 1218 | while ((count = fread (buffer, 1, sizeof (buffer), f)) > 0) |
2593f09a | 1219 | file_crc = bfd_calc_gnu_debuglink_crc32 (file_crc, buffer, count); |
31f7ba04 | 1220 | |
fed590bb | 1221 | fclose (f); |
31f7ba04 NC |
1222 | |
1223 | return crc == file_crc; | |
1224 | } | |
1225 | ||
1226 | ||
1227 | /* | |
1228 | INTERNAL_FUNCTION | |
1229 | find_separate_debug_file | |
1230 | ||
1231 | SYNOPSIS | |
c58b9523 | 1232 | char *find_separate_debug_file (bfd *abfd); |
31f7ba04 NC |
1233 | |
1234 | DESCRIPTION | |
1235 | Searches @var{abfd} for a reference to separate debugging | |
1236 | information, scans various locations in the filesystem, including | |
1237 | the file tree rooted at @var{debug_file_directory}, and returns a | |
1238 | filename of such debugging information if the file is found and has | |
1239 | matching CRC32. Returns NULL if no reference to debugging file | |
1240 | exists, or file cannot be found. | |
1241 | */ | |
1242 | ||
1243 | static char * | |
c58b9523 | 1244 | find_separate_debug_file (bfd *abfd, const char *debug_file_directory) |
31f7ba04 | 1245 | { |
91d6fa6a | 1246 | char *base; |
31f7ba04 NC |
1247 | char *dir; |
1248 | char *debugfile; | |
91910cdd | 1249 | char *canon_dir; |
31f7ba04 | 1250 | unsigned long crc32; |
3ea6b9a5 | 1251 | size_t dirlen; |
91910cdd | 1252 | size_t canon_dirlen; |
31f7ba04 NC |
1253 | |
1254 | BFD_ASSERT (abfd); | |
1255 | if (debug_file_directory == NULL) | |
1256 | debug_file_directory = "."; | |
1257 | ||
1258 | /* BFD may have been opened from a stream. */ | |
3ea6b9a5 AM |
1259 | if (abfd->filename == NULL) |
1260 | { | |
1261 | bfd_set_error (bfd_error_invalid_operation); | |
1262 | return NULL; | |
1263 | } | |
31f7ba04 | 1264 | |
cc0ea93c | 1265 | base = bfd_get_debug_link_info (abfd, & crc32); |
91d6fa6a | 1266 | if (base == NULL) |
31f7ba04 | 1267 | return NULL; |
2593f09a | 1268 | |
91d6fa6a | 1269 | if (base[0] == '\0') |
5ed6aba4 | 1270 | { |
91d6fa6a | 1271 | free (base); |
3ea6b9a5 | 1272 | bfd_set_error (bfd_error_no_debug_section); |
5ed6aba4 NC |
1273 | return NULL; |
1274 | } | |
31f7ba04 | 1275 | |
3ea6b9a5 AM |
1276 | for (dirlen = strlen (abfd->filename); dirlen > 0; dirlen--) |
1277 | if (IS_DIR_SEPARATOR (abfd->filename[dirlen - 1])) | |
1278 | break; | |
1279 | ||
a50b1753 | 1280 | dir = (char *) bfd_malloc (dirlen + 1); |
2593f09a NC |
1281 | if (dir == NULL) |
1282 | { | |
91d6fa6a | 1283 | free (base); |
2593f09a NC |
1284 | return NULL; |
1285 | } | |
3ea6b9a5 AM |
1286 | memcpy (dir, abfd->filename, dirlen); |
1287 | dir[dirlen] = '\0'; | |
1288 | ||
91910cdd AS |
1289 | /* Compute the canonical name of the bfd object with all symbolic links |
1290 | resolved, for use in the global debugfile directory. */ | |
1291 | canon_dir = lrealpath (abfd->filename); | |
1292 | for (canon_dirlen = strlen (canon_dir); canon_dirlen > 0; canon_dirlen--) | |
1293 | if (IS_DIR_SEPARATOR (canon_dir[canon_dirlen - 1])) | |
1294 | break; | |
1295 | canon_dir[canon_dirlen] = '\0'; | |
1296 | ||
a50b1753 NC |
1297 | debugfile = (char *) |
1298 | bfd_malloc (strlen (debug_file_directory) + 1 | |
1299 | + (canon_dirlen > dirlen ? canon_dirlen : dirlen) | |
1300 | + strlen (".debug/") | |
91d6fa6a | 1301 | + strlen (base) |
a50b1753 | 1302 | + 1); |
2593f09a NC |
1303 | if (debugfile == NULL) |
1304 | { | |
91d6fa6a | 1305 | free (base); |
2593f09a | 1306 | free (dir); |
91910cdd | 1307 | free (canon_dir); |
2593f09a NC |
1308 | return NULL; |
1309 | } | |
31f7ba04 NC |
1310 | |
1311 | /* First try in the same directory as the original file: */ | |
1312 | strcpy (debugfile, dir); | |
91d6fa6a | 1313 | strcat (debugfile, base); |
31f7ba04 NC |
1314 | |
1315 | if (separate_debug_file_exists (debugfile, crc32)) | |
1316 | { | |
91d6fa6a | 1317 | free (base); |
31f7ba04 | 1318 | free (dir); |
91910cdd | 1319 | free (canon_dir); |
31f7ba04 NC |
1320 | return debugfile; |
1321 | } | |
1322 | ||
1323 | /* Then try in a subdirectory called .debug. */ | |
1324 | strcpy (debugfile, dir); | |
1325 | strcat (debugfile, ".debug/"); | |
91d6fa6a | 1326 | strcat (debugfile, base); |
31f7ba04 NC |
1327 | |
1328 | if (separate_debug_file_exists (debugfile, crc32)) | |
1329 | { | |
91d6fa6a | 1330 | free (base); |
31f7ba04 | 1331 | free (dir); |
91910cdd | 1332 | free (canon_dir); |
31f7ba04 NC |
1333 | return debugfile; |
1334 | } | |
1335 | ||
1336 | /* Then try in the global debugfile directory. */ | |
1337 | strcpy (debugfile, debug_file_directory); | |
91910cdd AS |
1338 | dirlen = strlen (debug_file_directory) - 1; |
1339 | if (dirlen > 0 | |
1340 | && debug_file_directory[dirlen] != '/' | |
1341 | && canon_dir[0] != '/') | |
31f7ba04 | 1342 | strcat (debugfile, "/"); |
91910cdd | 1343 | strcat (debugfile, canon_dir); |
91d6fa6a | 1344 | strcat (debugfile, base); |
31f7ba04 NC |
1345 | |
1346 | if (separate_debug_file_exists (debugfile, crc32)) | |
1347 | { | |
91d6fa6a | 1348 | free (base); |
31f7ba04 | 1349 | free (dir); |
91910cdd | 1350 | free (canon_dir); |
31f7ba04 NC |
1351 | return debugfile; |
1352 | } | |
1353 | ||
1354 | free (debugfile); | |
91d6fa6a | 1355 | free (base); |
31f7ba04 | 1356 | free (dir); |
91910cdd | 1357 | free (canon_dir); |
31f7ba04 NC |
1358 | return NULL; |
1359 | } | |
1360 | ||
1361 | ||
1362 | /* | |
1363 | FUNCTION | |
1364 | bfd_follow_gnu_debuglink | |
1365 | ||
1366 | SYNOPSIS | |
c58b9523 | 1367 | char *bfd_follow_gnu_debuglink (bfd *abfd, const char *dir); |
31f7ba04 NC |
1368 | |
1369 | DESCRIPTION | |
1370 | ||
1371 | Takes a BFD and searches it for a .gnu_debuglink section. If this | |
28d39d1a NC |
1372 | section is found, it examines the section for the name and checksum |
1373 | of a '.debug' file containing auxiliary debugging information. It | |
1374 | then searches the filesystem for this .debug file in some standard | |
31f7ba04 | 1375 | locations, including the directory tree rooted at @var{dir}, and if |
28d39d1a NC |
1376 | found returns the full filename. |
1377 | ||
1378 | If @var{dir} is NULL, it will search a default path configured into | |
1379 | libbfd at build time. [XXX this feature is not currently | |
1380 | implemented]. | |
31f7ba04 NC |
1381 | |
1382 | RETURNS | |
1383 | <<NULL>> on any errors or failure to locate the .debug file, | |
1384 | otherwise a pointer to a heap-allocated string containing the | |
28d39d1a | 1385 | filename. The caller is responsible for freeing this string. |
31f7ba04 NC |
1386 | */ |
1387 | ||
1388 | char * | |
c58b9523 | 1389 | bfd_follow_gnu_debuglink (bfd *abfd, const char *dir) |
31f7ba04 | 1390 | { |
31f7ba04 NC |
1391 | return find_separate_debug_file (abfd, dir); |
1392 | } | |
2593f09a NC |
1393 | |
1394 | /* | |
1395 | FUNCTION | |
e7c81c25 | 1396 | bfd_create_gnu_debuglink_section |
2593f09a NC |
1397 | |
1398 | SYNOPSIS | |
198beae2 | 1399 | struct bfd_section *bfd_create_gnu_debuglink_section |
c58b9523 | 1400 | (bfd *abfd, const char *filename); |
2593f09a NC |
1401 | |
1402 | DESCRIPTION | |
1403 | ||
e7c81c25 NC |
1404 | Takes a @var{BFD} and adds a .gnu_debuglink section to it. The section is sized |
1405 | to be big enough to contain a link to the specified @var{filename}. | |
1406 | ||
1407 | RETURNS | |
1408 | A pointer to the new section is returned if all is ok. Otherwise <<NULL>> is | |
f12123c0 | 1409 | returned and bfd_error is set. |
e7c81c25 NC |
1410 | */ |
1411 | ||
1412 | asection * | |
c58b9523 | 1413 | bfd_create_gnu_debuglink_section (bfd *abfd, const char *filename) |
e7c81c25 | 1414 | { |
c58b9523 AM |
1415 | asection *sect; |
1416 | bfd_size_type debuglink_size; | |
117ed4f8 | 1417 | flagword flags; |
e7c81c25 NC |
1418 | |
1419 | if (abfd == NULL || filename == NULL) | |
1420 | { | |
1421 | bfd_set_error (bfd_error_invalid_operation); | |
1422 | return NULL; | |
1423 | } | |
1424 | ||
1425 | /* Strip off any path components in filename. */ | |
1426 | filename = lbasename (filename); | |
f12123c0 | 1427 | |
e7c81c25 NC |
1428 | sect = bfd_get_section_by_name (abfd, GNU_DEBUGLINK); |
1429 | if (sect) | |
1430 | { | |
1431 | /* Section already exists. */ | |
1432 | bfd_set_error (bfd_error_invalid_operation); | |
1433 | return NULL; | |
1434 | } | |
1435 | ||
117ed4f8 AM |
1436 | flags = SEC_HAS_CONTENTS | SEC_READONLY | SEC_DEBUGGING; |
1437 | sect = bfd_make_section_with_flags (abfd, GNU_DEBUGLINK, flags); | |
e7c81c25 NC |
1438 | if (sect == NULL) |
1439 | return NULL; | |
1440 | ||
e7c81c25 NC |
1441 | debuglink_size = strlen (filename) + 1; |
1442 | debuglink_size += 3; | |
1443 | debuglink_size &= ~3; | |
1444 | debuglink_size += 4; | |
1445 | ||
1446 | if (! bfd_set_section_size (abfd, sect, debuglink_size)) | |
1447 | /* XXX Should we delete the section from the bfd ? */ | |
1448 | return NULL; | |
f12123c0 | 1449 | |
e7c81c25 NC |
1450 | return sect; |
1451 | } | |
1452 | ||
1453 | ||
1454 | /* | |
1455 | FUNCTION | |
1456 | bfd_fill_in_gnu_debuglink_section | |
1457 | ||
1458 | SYNOPSIS | |
c58b9523 | 1459 | bfd_boolean bfd_fill_in_gnu_debuglink_section |
198beae2 | 1460 | (bfd *abfd, struct bfd_section *sect, const char *filename); |
e7c81c25 NC |
1461 | |
1462 | DESCRIPTION | |
1463 | ||
1464 | Takes a @var{BFD} and containing a .gnu_debuglink section @var{SECT} | |
1465 | and fills in the contents of the section to contain a link to the | |
1466 | specified @var{filename}. The filename should be relative to the | |
1467 | current directory. | |
2593f09a NC |
1468 | |
1469 | RETURNS | |
1470 | <<TRUE>> is returned if all is ok. Otherwise <<FALSE>> is returned | |
f12123c0 | 1471 | and bfd_error is set. |
2593f09a NC |
1472 | */ |
1473 | ||
1474 | bfd_boolean | |
c58b9523 | 1475 | bfd_fill_in_gnu_debuglink_section (bfd *abfd, |
198beae2 | 1476 | struct bfd_section *sect, |
c58b9523 | 1477 | const char *filename) |
2593f09a | 1478 | { |
2593f09a NC |
1479 | bfd_size_type debuglink_size; |
1480 | unsigned long crc32; | |
1481 | char * contents; | |
1482 | bfd_size_type crc_offset; | |
1483 | FILE * handle; | |
f075ee0c | 1484 | static unsigned char buffer[8 * 1024]; |
2593f09a | 1485 | size_t count; |
3ea6b9a5 | 1486 | size_t filelen; |
2593f09a | 1487 | |
e7c81c25 | 1488 | if (abfd == NULL || sect == NULL || filename == NULL) |
2593f09a NC |
1489 | { |
1490 | bfd_set_error (bfd_error_invalid_operation); | |
1491 | return FALSE; | |
1492 | } | |
1493 | ||
1494 | /* Make sure that we can read the file. | |
1495 | XXX - Should we attempt to locate the debug info file using the same | |
1496 | algorithm as gdb ? At the moment, since we are creating the | |
1497 | .gnu_debuglink section, we insist upon the user providing us with a | |
1498 | correct-for-section-creation-time path, but this need not conform to | |
1499 | the gdb location algorithm. */ | |
2e6f4fae | 1500 | handle = real_fopen (filename, FOPEN_RB); |
2593f09a NC |
1501 | if (handle == NULL) |
1502 | { | |
1503 | bfd_set_error (bfd_error_system_call); | |
1504 | return FALSE; | |
1505 | } | |
1506 | ||
1507 | crc32 = 0; | |
1508 | while ((count = fread (buffer, 1, sizeof buffer, handle)) > 0) | |
1509 | crc32 = bfd_calc_gnu_debuglink_crc32 (crc32, buffer, count); | |
1510 | fclose (handle); | |
1511 | ||
1512 | /* Strip off any path components in filename, | |
1513 | now that we no longer need them. */ | |
1514 | filename = lbasename (filename); | |
f12123c0 | 1515 | |
3ea6b9a5 AM |
1516 | filelen = strlen (filename); |
1517 | debuglink_size = filelen + 1; | |
2593f09a NC |
1518 | debuglink_size += 3; |
1519 | debuglink_size &= ~3; | |
1520 | debuglink_size += 4; | |
1521 | ||
a50b1753 | 1522 | contents = (char *) bfd_malloc (debuglink_size); |
2593f09a NC |
1523 | if (contents == NULL) |
1524 | { | |
1525 | /* XXX Should we delete the section from the bfd ? */ | |
2593f09a NC |
1526 | return FALSE; |
1527 | } | |
1528 | ||
2593f09a | 1529 | crc_offset = debuglink_size - 4; |
3ea6b9a5 AM |
1530 | memcpy (contents, filename, filelen); |
1531 | memset (contents + filelen, 0, crc_offset - filelen); | |
2593f09a | 1532 | |
c58b9523 | 1533 | bfd_put_32 (abfd, crc32, contents + crc_offset); |
2593f09a | 1534 | |
c58b9523 | 1535 | if (! bfd_set_section_contents (abfd, sect, contents, 0, debuglink_size)) |
2593f09a NC |
1536 | { |
1537 | /* XXX Should we delete the section from the bfd ? */ | |
1538 | free (contents); | |
1539 | return FALSE; | |
1540 | } | |
1541 | ||
1542 | return TRUE; | |
1543 | } |