Commit | Line | Data |
---|---|---|
252b5132 | 1 | /* opncls.c -- open and close a BFD. |
7898deda | 2 | Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 2000, |
6f0c7050 | 3 | 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012 |
252b5132 RH |
4 | Free Software Foundation, Inc. |
5 | ||
6 | Written by Cygnus Support. | |
7 | ||
c4f3d130 | 8 | This file is part of BFD, the Binary File Descriptor library. |
252b5132 | 9 | |
c4f3d130 NC |
10 | This program is free software; you can redistribute it and/or modify |
11 | it under the terms of the GNU General Public License as published by | |
cd123cb7 | 12 | the Free Software Foundation; either version 3 of the License, or |
c4f3d130 | 13 | (at your option) any later version. |
252b5132 | 14 | |
c4f3d130 NC |
15 | This program is distributed in the hope that it will be useful, |
16 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | GNU General Public License for more details. | |
252b5132 | 19 | |
c4f3d130 NC |
20 | You should have received a copy of the GNU General Public License |
21 | along with this program; if not, write to the Free Software | |
cd123cb7 NC |
22 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
23 | MA 02110-1301, USA. */ | |
252b5132 | 24 | |
252b5132 | 25 | #include "sysdep.h" |
3db64b00 | 26 | #include "bfd.h" |
252b5132 RH |
27 | #include "objalloc.h" |
28 | #include "libbfd.h" | |
31f7ba04 | 29 | #include "libiberty.h" |
252b5132 RH |
30 | |
31 | #ifndef S_IXUSR | |
32 | #define S_IXUSR 0100 /* Execute by owner. */ | |
33 | #endif | |
34 | #ifndef S_IXGRP | |
35 | #define S_IXGRP 0010 /* Execute by group. */ | |
36 | #endif | |
37 | #ifndef S_IXOTH | |
38 | #define S_IXOTH 0001 /* Execute by others. */ | |
39 | #endif | |
40 | ||
fc1cfaa5 | 41 | /* Counters used to initialize the bfd identifier. */ |
52b69c9e | 42 | |
fc1cfaa5 AM |
43 | static unsigned int bfd_id_counter = 0; |
44 | static unsigned int bfd_reserved_id_counter = 0; | |
45 | ||
46 | /* | |
47 | CODE_FRAGMENT | |
48 | .{* Set to N to open the next N BFDs using an alternate id space. *} | |
49 | .extern unsigned int bfd_use_reserved_id; | |
50 | */ | |
51 | unsigned int bfd_use_reserved_id = 0; | |
52b69c9e | 52 | |
252b5132 RH |
53 | /* fdopen is a loser -- we should use stdio exclusively. Unfortunately |
54 | if we do that we can't use fcntl. */ | |
55 | ||
252b5132 RH |
56 | /* Return a new BFD. All BFD's are allocated through this routine. */ |
57 | ||
58 | bfd * | |
c58b9523 | 59 | _bfd_new_bfd (void) |
252b5132 RH |
60 | { |
61 | bfd *nbfd; | |
62 | ||
a50b1753 | 63 | nbfd = (bfd *) bfd_zmalloc (sizeof (bfd)); |
252b5132 RH |
64 | if (nbfd == NULL) |
65 | return NULL; | |
66 | ||
fc1cfaa5 AM |
67 | if (bfd_use_reserved_id) |
68 | { | |
69 | nbfd->id = --bfd_reserved_id_counter; | |
70 | --bfd_use_reserved_id; | |
71 | } | |
72 | else | |
73 | nbfd->id = bfd_id_counter++; | |
52b69c9e | 74 | |
c58b9523 | 75 | nbfd->memory = objalloc_create (); |
252b5132 RH |
76 | if (nbfd->memory == NULL) |
77 | { | |
78 | bfd_set_error (bfd_error_no_memory); | |
73e87d70 | 79 | free (nbfd); |
252b5132 RH |
80 | return NULL; |
81 | } | |
82 | ||
83 | nbfd->arch_info = &bfd_default_arch_struct; | |
84 | ||
85 | nbfd->direction = no_direction; | |
86 | nbfd->iostream = NULL; | |
87 | nbfd->where = 0; | |
28d39d1a | 88 | if (!bfd_hash_table_init_n (& nbfd->section_htab, bfd_section_hash_newfunc, |
66eb6687 | 89 | sizeof (struct section_hash_entry), 251)) |
73e87d70 AM |
90 | { |
91 | free (nbfd); | |
92 | return NULL; | |
93 | } | |
c58b9523 | 94 | nbfd->sections = NULL; |
5daa8fe7 | 95 | nbfd->section_last = NULL; |
252b5132 | 96 | nbfd->format = bfd_unknown; |
c58b9523 | 97 | nbfd->my_archive = NULL; |
dc810e39 | 98 | nbfd->origin = 0; |
b34976b6 AM |
99 | nbfd->opened_once = FALSE; |
100 | nbfd->output_has_begun = FALSE; | |
252b5132 | 101 | nbfd->section_count = 0; |
c58b9523 | 102 | nbfd->usrdata = NULL; |
b34976b6 | 103 | nbfd->cacheable = FALSE; |
252b5132 | 104 | nbfd->flags = BFD_NO_FLAGS; |
b34976b6 | 105 | nbfd->mtime_set = FALSE; |
252b5132 RH |
106 | |
107 | return nbfd; | |
108 | } | |
109 | ||
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; |
252b5132 RH |
122 | nbfd->my_archive = obfd; |
123 | nbfd->direction = read_direction; | |
124 | nbfd->target_defaulted = obfd->target_defaulted; | |
125 | return nbfd; | |
126 | } | |
127 | ||
73e87d70 AM |
128 | /* Delete a BFD. */ |
129 | ||
7b84f8da | 130 | static void |
c58b9523 | 131 | _bfd_delete_bfd (bfd *abfd) |
73e87d70 | 132 | { |
b25e3d87 L |
133 | if (abfd->memory) |
134 | { | |
135 | bfd_hash_table_free (&abfd->section_htab); | |
136 | objalloc_free ((struct objalloc *) abfd->memory); | |
137 | } | |
a988325c | 138 | |
73e87d70 AM |
139 | free (abfd); |
140 | } | |
141 | ||
b25e3d87 L |
142 | /* Free objalloc memory. */ |
143 | ||
144 | bfd_boolean | |
145 | _bfd_free_cached_info (bfd *abfd) | |
146 | { | |
147 | if (abfd->memory) | |
148 | { | |
149 | bfd_hash_table_free (&abfd->section_htab); | |
150 | objalloc_free ((struct objalloc *) abfd->memory); | |
151 | ||
152 | abfd->sections = NULL; | |
153 | abfd->section_last = NULL; | |
154 | abfd->outsymbols = NULL; | |
155 | abfd->tdata.any = NULL; | |
156 | abfd->usrdata = NULL; | |
157 | abfd->memory = NULL; | |
158 | } | |
159 | ||
160 | return TRUE; | |
161 | } | |
162 | ||
252b5132 RH |
163 | /* |
164 | SECTION | |
165 | Opening and closing BFDs | |
166 | ||
1b74d094 BW |
167 | SUBSECTION |
168 | Functions for opening and closing | |
252b5132 RH |
169 | */ |
170 | ||
171 | /* | |
172 | FUNCTION | |
2d0123b7 | 173 | bfd_fopen |
252b5132 RH |
174 | |
175 | SYNOPSIS | |
2d0123b7 MM |
176 | bfd *bfd_fopen (const char *filename, const char *target, |
177 | const char *mode, int fd); | |
252b5132 RH |
178 | |
179 | DESCRIPTION | |
2d0123b7 MM |
180 | Open the file @var{filename} with the target @var{target}. |
181 | Return a pointer to the created BFD. If @var{fd} is not -1, | |
182 | then <<fdopen>> is used to open the file; otherwise, <<fopen>> | |
183 | is used. @var{mode} is passed directly to <<fopen>> or | |
184 | <<fdopen>>. | |
252b5132 RH |
185 | |
186 | Calls <<bfd_find_target>>, so @var{target} is interpreted as by | |
187 | that function. | |
188 | ||
a366f4ff MM |
189 | The new BFD is marked as cacheable iff @var{fd} is -1. |
190 | ||
252b5132 | 191 | If <<NULL>> is returned then an error has occured. Possible errors |
7c4a37eb AM |
192 | are <<bfd_error_no_memory>>, <<bfd_error_invalid_target>> or |
193 | <<system_call>> error. | |
6f0c7050 TT |
194 | |
195 | On error, @var{fd} is always closed. | |
252b5132 RH |
196 | */ |
197 | ||
198 | bfd * | |
2d0123b7 | 199 | bfd_fopen (const char *filename, const char *target, const char *mode, int fd) |
252b5132 RH |
200 | { |
201 | bfd *nbfd; | |
202 | const bfd_target *target_vec; | |
203 | ||
204 | nbfd = _bfd_new_bfd (); | |
205 | if (nbfd == NULL) | |
6f0c7050 TT |
206 | { |
207 | if (fd != -1) | |
208 | close (fd); | |
209 | return NULL; | |
210 | } | |
252b5132 RH |
211 | |
212 | target_vec = bfd_find_target (target, nbfd); | |
213 | if (target_vec == NULL) | |
214 | { | |
6f0c7050 TT |
215 | if (fd != -1) |
216 | close (fd); | |
73e87d70 | 217 | _bfd_delete_bfd (nbfd); |
252b5132 RH |
218 | return NULL; |
219 | } | |
2d0123b7 MM |
220 | |
221 | #ifdef HAVE_FDOPEN | |
222 | if (fd != -1) | |
223 | nbfd->iostream = fdopen (fd, mode); | |
224 | else | |
225 | #endif | |
2e6f4fae | 226 | nbfd->iostream = real_fopen (filename, mode); |
2d0123b7 MM |
227 | if (nbfd->iostream == NULL) |
228 | { | |
92a7c1b8 | 229 | bfd_set_error (bfd_error_system_call); |
2d0123b7 MM |
230 | _bfd_delete_bfd (nbfd); |
231 | return NULL; | |
232 | } | |
252b5132 | 233 | |
2d0123b7 | 234 | /* OK, put everything where it belongs. */ |
252b5132 | 235 | nbfd->filename = filename; |
252b5132 | 236 | |
2d0123b7 MM |
237 | /* Figure out whether the user is opening the file for reading, |
238 | writing, or both, by looking at the MODE argument. */ | |
239 | if ((mode[0] == 'r' || mode[0] == 'w' || mode[0] == 'a') | |
240 | && mode[1] == '+') | |
241 | nbfd->direction = both_direction; | |
242 | else if (mode[0] == 'r') | |
243 | nbfd->direction = read_direction; | |
244 | else | |
245 | nbfd->direction = write_direction; | |
246 | ||
247 | if (! bfd_cache_init (nbfd)) | |
252b5132 | 248 | { |
73e87d70 | 249 | _bfd_delete_bfd (nbfd); |
252b5132 RH |
250 | return NULL; |
251 | } | |
2d0123b7 | 252 | nbfd->opened_once = TRUE; |
a366f4ff MM |
253 | /* If we opened the file by name, mark it cacheable; we can close it |
254 | and reopen it later. However, if a file descriptor was provided, | |
255 | then it may have been opened with special flags that make it | |
256 | unsafe to close and reopen the file. */ | |
257 | if (fd == -1) | |
258 | bfd_set_cacheable (nbfd, TRUE); | |
252b5132 RH |
259 | |
260 | return nbfd; | |
261 | } | |
262 | ||
2d0123b7 MM |
263 | /* |
264 | FUNCTION | |
265 | bfd_openr | |
266 | ||
267 | SYNOPSIS | |
268 | bfd *bfd_openr (const char *filename, const char *target); | |
269 | ||
270 | DESCRIPTION | |
271 | Open the file @var{filename} (using <<fopen>>) with the target | |
272 | @var{target}. Return a pointer to the created BFD. | |
273 | ||
274 | Calls <<bfd_find_target>>, so @var{target} is interpreted as by | |
275 | that function. | |
276 | ||
277 | If <<NULL>> is returned then an error has occured. Possible errors | |
278 | are <<bfd_error_no_memory>>, <<bfd_error_invalid_target>> or | |
279 | <<system_call>> error. | |
280 | */ | |
281 | ||
282 | bfd * | |
283 | bfd_openr (const char *filename, const char *target) | |
284 | { | |
285 | return bfd_fopen (filename, target, FOPEN_RB, -1); | |
286 | } | |
287 | ||
252b5132 RH |
288 | /* Don't try to `optimize' this function: |
289 | ||
290 | o - We lock using stack space so that interrupting the locking | |
291 | won't cause a storage leak. | |
292 | o - We open the file stream last, since we don't want to have to | |
293 | close it if anything goes wrong. Closing the stream means closing | |
c4f3d130 | 294 | the file descriptor too, even though we didn't open it. */ |
252b5132 RH |
295 | /* |
296 | FUNCTION | |
7c4a37eb | 297 | bfd_fdopenr |
252b5132 RH |
298 | |
299 | SYNOPSIS | |
c58b9523 | 300 | bfd *bfd_fdopenr (const char *filename, const char *target, int fd); |
252b5132 RH |
301 | |
302 | DESCRIPTION | |
7c4a37eb AM |
303 | <<bfd_fdopenr>> is to <<bfd_fopenr>> much like <<fdopen>> is to |
304 | <<fopen>>. It opens a BFD on a file already described by the | |
305 | @var{fd} supplied. | |
306 | ||
307 | When the file is later <<bfd_close>>d, the file descriptor will | |
308 | be closed. If the caller desires that this file descriptor be | |
309 | cached by BFD (opened as needed, closed as needed to free | |
310 | descriptors for other opens), with the supplied @var{fd} used as | |
311 | an initial file descriptor (but subject to closure at any time), | |
312 | call bfd_set_cacheable(bfd, 1) on the returned BFD. The default | |
7dee875e | 313 | is to assume no caching; the file descriptor will remain open |
7c4a37eb AM |
314 | until <<bfd_close>>, and will not be affected by BFD operations |
315 | on other files. | |
316 | ||
317 | Possible errors are <<bfd_error_no_memory>>, | |
318 | <<bfd_error_invalid_target>> and <<bfd_error_system_call>>. | |
6f0c7050 TT |
319 | |
320 | On error, @var{fd} is closed. | |
252b5132 RH |
321 | */ |
322 | ||
323 | bfd * | |
c58b9523 | 324 | bfd_fdopenr (const char *filename, const char *target, int fd) |
252b5132 | 325 | { |
2d0123b7 MM |
326 | const char *mode; |
327 | #if defined(HAVE_FCNTL) && defined(F_GETFL) | |
252b5132 | 328 | int fdflags; |
2d0123b7 | 329 | #endif |
252b5132 | 330 | |
252b5132 | 331 | #if ! defined(HAVE_FCNTL) || ! defined(F_GETFL) |
2d0123b7 | 332 | mode = FOPEN_RUB; /* Assume full access. */ |
252b5132 RH |
333 | #else |
334 | fdflags = fcntl (fd, F_GETFL, NULL); | |
767e34d1 | 335 | if (fdflags == -1) |
d83747fa | 336 | { |
6f0c7050 TT |
337 | int save = errno; |
338 | ||
339 | close (fd); | |
340 | errno = save; | |
d83747fa AM |
341 | bfd_set_error (bfd_error_system_call); |
342 | return NULL; | |
343 | } | |
252b5132 | 344 | |
c4f3d130 | 345 | /* (O_ACCMODE) parens are to avoid Ultrix header file bug. */ |
252b5132 RH |
346 | switch (fdflags & (O_ACCMODE)) |
347 | { | |
dfab97d6 MM |
348 | case O_RDONLY: mode = FOPEN_RB; break; |
349 | case O_WRONLY: mode = FOPEN_RUB; break; | |
350 | case O_RDWR: mode = FOPEN_RUB; break; | |
252b5132 RH |
351 | default: abort (); |
352 | } | |
353 | #endif | |
354 | ||
2d0123b7 | 355 | return bfd_fopen (filename, target, mode, fd); |
252b5132 RH |
356 | } |
357 | ||
358 | /* | |
359 | FUNCTION | |
360 | bfd_openstreamr | |
361 | ||
362 | SYNOPSIS | |
c58b9523 | 363 | bfd *bfd_openstreamr (const char *, const char *, void *); |
252b5132 RH |
364 | |
365 | DESCRIPTION | |
366 | ||
367 | Open a BFD for read access on an existing stdio stream. When | |
368 | the BFD is passed to <<bfd_close>>, the stream will be closed. | |
369 | */ | |
370 | ||
371 | bfd * | |
c58b9523 | 372 | bfd_openstreamr (const char *filename, const char *target, void *streamarg) |
252b5132 | 373 | { |
a50b1753 | 374 | FILE *stream = (FILE *) streamarg; |
252b5132 RH |
375 | bfd *nbfd; |
376 | const bfd_target *target_vec; | |
377 | ||
378 | nbfd = _bfd_new_bfd (); | |
379 | if (nbfd == NULL) | |
380 | return NULL; | |
381 | ||
382 | target_vec = bfd_find_target (target, nbfd); | |
383 | if (target_vec == NULL) | |
384 | { | |
73e87d70 | 385 | _bfd_delete_bfd (nbfd); |
252b5132 RH |
386 | return NULL; |
387 | } | |
388 | ||
c58b9523 | 389 | nbfd->iostream = stream; |
252b5132 RH |
390 | nbfd->filename = filename; |
391 | nbfd->direction = read_direction; | |
dc810e39 | 392 | |
252b5132 RH |
393 | if (! bfd_cache_init (nbfd)) |
394 | { | |
73e87d70 | 395 | _bfd_delete_bfd (nbfd); |
252b5132 RH |
396 | return NULL; |
397 | } | |
398 | ||
399 | return nbfd; | |
400 | } | |
40838a72 AC |
401 | |
402 | /* | |
403 | FUNCTION | |
404 | bfd_openr_iovec | |
405 | ||
406 | SYNOPSIS | |
407 | bfd *bfd_openr_iovec (const char *filename, const char *target, | |
e7f8eadb DK |
408 | void *(*open_func) (struct bfd *nbfd, |
409 | void *open_closure), | |
40838a72 | 410 | void *open_closure, |
e7f8eadb DK |
411 | file_ptr (*pread_func) (struct bfd *nbfd, |
412 | void *stream, | |
413 | void *buf, | |
414 | file_ptr nbytes, | |
415 | file_ptr offset), | |
416 | int (*close_func) (struct bfd *nbfd, | |
417 | void *stream), | |
418 | int (*stat_func) (struct bfd *abfd, | |
419 | void *stream, | |
420 | struct stat *sb)); | |
40838a72 AC |
421 | |
422 | DESCRIPTION | |
423 | ||
424 | Create and return a BFD backed by a read-only @var{stream}. | |
e7f8eadb DK |
425 | The @var{stream} is created using @var{open_func}, accessed using |
426 | @var{pread_func} and destroyed using @var{close_func}. | |
40838a72 AC |
427 | |
428 | Calls <<bfd_find_target>>, so @var{target} is interpreted as by | |
429 | that function. | |
430 | ||
e7f8eadb | 431 | Calls @var{open_func} (which can call <<bfd_zalloc>> and |
40838a72 | 432 | <<bfd_get_filename>>) to obtain the read-only stream backing |
e7f8eadb | 433 | the BFD. @var{open_func} either succeeds returning the |
40838a72 AC |
434 | non-<<NULL>> @var{stream}, or fails returning <<NULL>> |
435 | (setting <<bfd_error>>). | |
436 | ||
e7f8eadb | 437 | Calls @var{pread_func} to request @var{nbytes} of data from |
40838a72 | 438 | @var{stream} starting at @var{offset} (e.g., via a call to |
e7f8eadb | 439 | <<bfd_read>>). @var{pread_func} either succeeds returning the |
40838a72 AC |
440 | number of bytes read (which can be less than @var{nbytes} when |
441 | end-of-file), or fails returning -1 (setting <<bfd_error>>). | |
442 | ||
e7f8eadb DK |
443 | Calls @var{close_func} when the BFD is later closed using |
444 | <<bfd_close>>. @var{close_func} either succeeds returning 0, or | |
40838a72 AC |
445 | fails returning -1 (setting <<bfd_error>>). |
446 | ||
e7f8eadb DK |
447 | Calls @var{stat_func} to fill in a stat structure for bfd_stat, |
448 | bfd_get_size, and bfd_get_mtime calls. @var{stat_func} returns 0 | |
f6cf9273 AM |
449 | on success, or returns -1 on failure (setting <<bfd_error>>). |
450 | ||
40838a72 AC |
451 | If <<bfd_openr_iovec>> returns <<NULL>> then an error has |
452 | occurred. Possible errors are <<bfd_error_no_memory>>, | |
453 | <<bfd_error_invalid_target>> and <<bfd_error_system_call>>. | |
454 | ||
455 | */ | |
456 | ||
457 | struct opncls | |
458 | { | |
459 | void *stream; | |
460 | file_ptr (*pread) (struct bfd *abfd, void *stream, void *buf, | |
461 | file_ptr nbytes, file_ptr offset); | |
462 | int (*close) (struct bfd *abfd, void *stream); | |
f6cf9273 | 463 | int (*stat) (struct bfd *abfd, void *stream, struct stat *sb); |
40838a72 AC |
464 | file_ptr where; |
465 | }; | |
466 | ||
467 | static file_ptr | |
468 | opncls_btell (struct bfd *abfd) | |
469 | { | |
a50b1753 | 470 | struct opncls *vec = (struct opncls *) abfd->iostream; |
40838a72 AC |
471 | return vec->where; |
472 | } | |
473 | ||
474 | static int | |
475 | opncls_bseek (struct bfd *abfd, file_ptr offset, int whence) | |
476 | { | |
a50b1753 | 477 | struct opncls *vec = (struct opncls *) abfd->iostream; |
40838a72 AC |
478 | switch (whence) |
479 | { | |
480 | case SEEK_SET: vec->where = offset; break; | |
481 | case SEEK_CUR: vec->where += offset; break; | |
482 | case SEEK_END: return -1; | |
483 | } | |
484 | return 0; | |
485 | } | |
486 | ||
487 | static file_ptr | |
488 | opncls_bread (struct bfd *abfd, void *buf, file_ptr nbytes) | |
489 | { | |
a50b1753 | 490 | struct opncls *vec = (struct opncls *) abfd->iostream; |
0709bb22 | 491 | file_ptr nread = (vec->pread) (abfd, vec->stream, buf, nbytes, vec->where); |
40838a72 AC |
492 | if (nread < 0) |
493 | return nread; | |
494 | vec->where += nread; | |
495 | return nread; | |
496 | } | |
497 | ||
498 | static file_ptr | |
499 | opncls_bwrite (struct bfd *abfd ATTRIBUTE_UNUSED, | |
500 | const void *where ATTRIBUTE_UNUSED, | |
501 | file_ptr nbytes ATTRIBUTE_UNUSED) | |
502 | { | |
503 | return -1; | |
504 | } | |
505 | ||
506 | static int | |
507 | opncls_bclose (struct bfd *abfd) | |
508 | { | |
a50b1753 | 509 | struct opncls *vec = (struct opncls *) abfd->iostream; |
40838a72 AC |
510 | /* Since the VEC's memory is bound to the bfd deleting the bfd will |
511 | free it. */ | |
512 | int status = 0; | |
513 | if (vec->close != NULL) | |
0709bb22 | 514 | status = (vec->close) (abfd, vec->stream); |
40838a72 AC |
515 | abfd->iostream = NULL; |
516 | return status; | |
517 | } | |
518 | ||
519 | static int | |
520 | opncls_bflush (struct bfd *abfd ATTRIBUTE_UNUSED) | |
521 | { | |
522 | return 0; | |
523 | } | |
524 | ||
525 | static int | |
f6cf9273 | 526 | opncls_bstat (struct bfd *abfd, struct stat *sb) |
40838a72 | 527 | { |
a50b1753 | 528 | struct opncls *vec = (struct opncls *) abfd->iostream; |
f6cf9273 | 529 | |
40838a72 | 530 | memset (sb, 0, sizeof (*sb)); |
f6cf9273 AM |
531 | if (vec->stat == NULL) |
532 | return 0; | |
533 | ||
534 | return (vec->stat) (abfd, vec->stream, sb); | |
40838a72 AC |
535 | } |
536 | ||
25b88f33 PP |
537 | static void * |
538 | opncls_bmmap (struct bfd *abfd ATTRIBUTE_UNUSED, | |
539 | void *addr ATTRIBUTE_UNUSED, | |
540 | bfd_size_type len ATTRIBUTE_UNUSED, | |
541 | int prot ATTRIBUTE_UNUSED, | |
542 | int flags ATTRIBUTE_UNUSED, | |
4c95ab76 TG |
543 | file_ptr offset ATTRIBUTE_UNUSED, |
544 | void **map_addr ATTRIBUTE_UNUSED, | |
545 | bfd_size_type *map_len ATTRIBUTE_UNUSED) | |
25b88f33 PP |
546 | { |
547 | return (void *) -1; | |
548 | } | |
549 | ||
40838a72 AC |
550 | static const struct bfd_iovec opncls_iovec = { |
551 | &opncls_bread, &opncls_bwrite, &opncls_btell, &opncls_bseek, | |
25b88f33 | 552 | &opncls_bclose, &opncls_bflush, &opncls_bstat, &opncls_bmmap |
40838a72 AC |
553 | }; |
554 | ||
555 | bfd * | |
556 | bfd_openr_iovec (const char *filename, const char *target, | |
662e4701 | 557 | void *(*open_p) (struct bfd *, void *), |
40838a72 | 558 | void *open_closure, |
662e4701 L |
559 | file_ptr (*pread_p) (struct bfd *, void *, void *, |
560 | file_ptr, file_ptr), | |
561 | int (*close_p) (struct bfd *, void *), | |
562 | int (*stat_p) (struct bfd *, void *, struct stat *)) | |
40838a72 AC |
563 | { |
564 | bfd *nbfd; | |
565 | const bfd_target *target_vec; | |
566 | struct opncls *vec; | |
567 | void *stream; | |
568 | ||
569 | nbfd = _bfd_new_bfd (); | |
570 | if (nbfd == NULL) | |
571 | return NULL; | |
572 | ||
573 | target_vec = bfd_find_target (target, nbfd); | |
574 | if (target_vec == NULL) | |
575 | { | |
576 | _bfd_delete_bfd (nbfd); | |
577 | return NULL; | |
578 | } | |
579 | ||
580 | nbfd->filename = filename; | |
581 | nbfd->direction = read_direction; | |
582 | ||
662e4701 L |
583 | /* `open_p (...)' would get expanded by an the open(2) syscall macro. */ |
584 | stream = (*open_p) (nbfd, open_closure); | |
40838a72 AC |
585 | if (stream == NULL) |
586 | { | |
587 | _bfd_delete_bfd (nbfd); | |
588 | return NULL; | |
589 | } | |
590 | ||
a50b1753 | 591 | vec = (struct opncls *) bfd_zalloc (nbfd, sizeof (struct opncls)); |
40838a72 | 592 | vec->stream = stream; |
662e4701 L |
593 | vec->pread = pread_p; |
594 | vec->close = close_p; | |
595 | vec->stat = stat_p; | |
40838a72 AC |
596 | |
597 | nbfd->iovec = &opncls_iovec; | |
598 | nbfd->iostream = vec; | |
599 | ||
600 | return nbfd; | |
601 | } | |
252b5132 | 602 | \f |
c4f3d130 NC |
603 | /* bfd_openw -- open for writing. |
604 | Returns a pointer to a freshly-allocated BFD on success, or NULL. | |
252b5132 | 605 | |
c4f3d130 | 606 | See comment by bfd_fdopenr before you try to modify this function. */ |
252b5132 RH |
607 | |
608 | /* | |
609 | FUNCTION | |
610 | bfd_openw | |
611 | ||
612 | SYNOPSIS | |
c58b9523 | 613 | bfd *bfd_openw (const char *filename, const char *target); |
252b5132 RH |
614 | |
615 | DESCRIPTION | |
616 | Create a BFD, associated with file @var{filename}, using the | |
617 | file format @var{target}, and return a pointer to it. | |
618 | ||
619 | Possible errors are <<bfd_error_system_call>>, <<bfd_error_no_memory>>, | |
620 | <<bfd_error_invalid_target>>. | |
621 | */ | |
622 | ||
623 | bfd * | |
c58b9523 | 624 | bfd_openw (const char *filename, const char *target) |
252b5132 RH |
625 | { |
626 | bfd *nbfd; | |
627 | const bfd_target *target_vec; | |
628 | ||
252b5132 | 629 | /* nbfd has to point to head of malloc'ed block so that bfd_close may |
c4f3d130 | 630 | reclaim it correctly. */ |
252b5132 RH |
631 | nbfd = _bfd_new_bfd (); |
632 | if (nbfd == NULL) | |
633 | return NULL; | |
634 | ||
635 | target_vec = bfd_find_target (target, nbfd); | |
636 | if (target_vec == NULL) | |
637 | { | |
73e87d70 | 638 | _bfd_delete_bfd (nbfd); |
252b5132 RH |
639 | return NULL; |
640 | } | |
641 | ||
642 | nbfd->filename = filename; | |
643 | nbfd->direction = write_direction; | |
644 | ||
645 | if (bfd_open_file (nbfd) == NULL) | |
646 | { | |
c4f3d130 NC |
647 | /* File not writeable, etc. */ |
648 | bfd_set_error (bfd_error_system_call); | |
73e87d70 | 649 | _bfd_delete_bfd (nbfd); |
252b5132 RH |
650 | return NULL; |
651 | } | |
652 | ||
653 | return nbfd; | |
654 | } | |
655 | ||
8c7d38e8 NC |
656 | static inline void |
657 | _maybe_make_executable (bfd * abfd) | |
658 | { | |
659 | /* If the file was open for writing and is now executable, | |
660 | make it so. */ | |
661 | if (abfd->direction == write_direction | |
dbde1c12 | 662 | && (abfd->flags & (EXEC_P | DYNAMIC)) != 0) |
8c7d38e8 NC |
663 | { |
664 | struct stat buf; | |
665 | ||
666 | if (stat (abfd->filename, &buf) == 0 | |
667 | /* Do not attempt to change non-regular files. This is | |
668 | here especially for configure scripts and kernel builds | |
669 | which run tests with "ld [...] -o /dev/null". */ | |
670 | && S_ISREG(buf.st_mode)) | |
671 | { | |
672 | unsigned int mask = umask (0); | |
673 | ||
674 | umask (mask); | |
675 | chmod (abfd->filename, | |
676 | (0777 | |
677 | & (buf.st_mode | ((S_IXUSR | S_IXGRP | S_IXOTH) &~ mask)))); | |
678 | } | |
679 | } | |
680 | } | |
681 | ||
252b5132 RH |
682 | /* |
683 | ||
684 | FUNCTION | |
685 | bfd_close | |
686 | ||
687 | SYNOPSIS | |
b34976b6 | 688 | bfd_boolean bfd_close (bfd *abfd); |
252b5132 RH |
689 | |
690 | DESCRIPTION | |
691 | ||
7c4a37eb AM |
692 | Close a BFD. If the BFD was open for writing, then pending |
693 | operations are completed and the file written out and closed. | |
694 | If the created file is executable, then <<chmod>> is called | |
695 | to mark it as such. | |
252b5132 RH |
696 | |
697 | All memory attached to the BFD is released. | |
698 | ||
699 | The file descriptor associated with the BFD is closed (even | |
700 | if it was passed in to BFD by <<bfd_fdopenr>>). | |
701 | ||
702 | RETURNS | |
b34976b6 | 703 | <<TRUE>> is returned if all is ok, otherwise <<FALSE>>. |
252b5132 RH |
704 | */ |
705 | ||
706 | ||
b34976b6 | 707 | bfd_boolean |
c58b9523 | 708 | bfd_close (bfd *abfd) |
252b5132 | 709 | { |
b34976b6 | 710 | bfd_boolean ret; |
252b5132 | 711 | |
c4f3d130 | 712 | if (bfd_write_p (abfd)) |
252b5132 RH |
713 | { |
714 | if (! BFD_SEND_FMT (abfd, _bfd_write_contents, (abfd))) | |
b34976b6 | 715 | return FALSE; |
252b5132 RH |
716 | } |
717 | ||
718 | if (! BFD_SEND (abfd, _close_and_cleanup, (abfd))) | |
b34976b6 | 719 | return FALSE; |
252b5132 | 720 | |
65077aa8 | 721 | ret = abfd->iovec->bclose (abfd); |
252b5132 | 722 | |
8c7d38e8 NC |
723 | if (ret) |
724 | _maybe_make_executable (abfd); | |
252b5132 | 725 | |
73e87d70 | 726 | _bfd_delete_bfd (abfd); |
252b5132 RH |
727 | |
728 | return ret; | |
729 | } | |
730 | ||
731 | /* | |
732 | FUNCTION | |
733 | bfd_close_all_done | |
734 | ||
735 | SYNOPSIS | |
b34976b6 | 736 | bfd_boolean bfd_close_all_done (bfd *); |
252b5132 RH |
737 | |
738 | DESCRIPTION | |
7c4a37eb AM |
739 | Close a BFD. Differs from <<bfd_close>> since it does not |
740 | complete any pending operations. This routine would be used | |
741 | if the application had just used BFD for swapping and didn't | |
742 | want to use any of the writing code. | |
252b5132 RH |
743 | |
744 | If the created file is executable, then <<chmod>> is called | |
745 | to mark it as such. | |
746 | ||
747 | All memory attached to the BFD is released. | |
748 | ||
749 | RETURNS | |
b34976b6 | 750 | <<TRUE>> is returned if all is ok, otherwise <<FALSE>>. |
252b5132 RH |
751 | */ |
752 | ||
b34976b6 | 753 | bfd_boolean |
c58b9523 | 754 | bfd_close_all_done (bfd *abfd) |
252b5132 | 755 | { |
b34976b6 | 756 | bfd_boolean ret; |
252b5132 RH |
757 | |
758 | ret = bfd_cache_close (abfd); | |
759 | ||
8c7d38e8 NC |
760 | if (ret) |
761 | _maybe_make_executable (abfd); | |
252b5132 | 762 | |
73e87d70 | 763 | _bfd_delete_bfd (abfd); |
252b5132 RH |
764 | |
765 | return ret; | |
766 | } | |
767 | ||
768 | /* | |
769 | FUNCTION | |
770 | bfd_create | |
771 | ||
772 | SYNOPSIS | |
c58b9523 | 773 | bfd *bfd_create (const char *filename, bfd *templ); |
252b5132 RH |
774 | |
775 | DESCRIPTION | |
7c4a37eb AM |
776 | Create a new BFD in the manner of <<bfd_openw>>, but without |
777 | opening a file. The new BFD takes the target from the target | |
fc1cfaa5 | 778 | used by @var{templ}. The format is always set to <<bfd_object>>. |
252b5132 RH |
779 | */ |
780 | ||
781 | bfd * | |
c58b9523 | 782 | bfd_create (const char *filename, bfd *templ) |
252b5132 RH |
783 | { |
784 | bfd *nbfd; | |
785 | ||
786 | nbfd = _bfd_new_bfd (); | |
787 | if (nbfd == NULL) | |
788 | return NULL; | |
789 | nbfd->filename = filename; | |
790 | if (templ) | |
791 | nbfd->xvec = templ->xvec; | |
792 | nbfd->direction = no_direction; | |
793 | bfd_set_format (nbfd, bfd_object); | |
c4f3d130 | 794 | |
252b5132 RH |
795 | return nbfd; |
796 | } | |
797 | ||
798 | /* | |
799 | FUNCTION | |
800 | bfd_make_writable | |
801 | ||
802 | SYNOPSIS | |
b34976b6 | 803 | bfd_boolean bfd_make_writable (bfd *abfd); |
252b5132 RH |
804 | |
805 | DESCRIPTION | |
806 | Takes a BFD as created by <<bfd_create>> and converts it | |
807 | into one like as returned by <<bfd_openw>>. It does this | |
808 | by converting the BFD to BFD_IN_MEMORY. It's assumed that | |
809 | you will call <<bfd_make_readable>> on this bfd later. | |
810 | ||
811 | RETURNS | |
b34976b6 | 812 | <<TRUE>> is returned if all is ok, otherwise <<FALSE>>. |
252b5132 RH |
813 | */ |
814 | ||
b34976b6 | 815 | bfd_boolean |
c58b9523 | 816 | bfd_make_writable (bfd *abfd) |
252b5132 RH |
817 | { |
818 | struct bfd_in_memory *bim; | |
819 | ||
820 | if (abfd->direction != no_direction) | |
821 | { | |
822 | bfd_set_error (bfd_error_invalid_operation); | |
b34976b6 | 823 | return FALSE; |
252b5132 RH |
824 | } |
825 | ||
a50b1753 | 826 | bim = (struct bfd_in_memory *) bfd_malloc (sizeof (struct bfd_in_memory)); |
f6eea5ae MS |
827 | if (bim == NULL) |
828 | return FALSE; /* bfd_error already set. */ | |
c58b9523 | 829 | abfd->iostream = bim; |
c4f3d130 | 830 | /* bfd_bwrite will grow these as needed. */ |
252b5132 RH |
831 | bim->size = 0; |
832 | bim->buffer = 0; | |
833 | ||
834 | abfd->flags |= BFD_IN_MEMORY; | |
65077aa8 TG |
835 | abfd->iovec = &_bfd_memory_iovec; |
836 | abfd->origin = 0; | |
252b5132 RH |
837 | abfd->direction = write_direction; |
838 | abfd->where = 0; | |
839 | ||
b34976b6 | 840 | return TRUE; |
252b5132 RH |
841 | } |
842 | ||
843 | /* | |
844 | FUNCTION | |
845 | bfd_make_readable | |
846 | ||
847 | SYNOPSIS | |
b34976b6 | 848 | bfd_boolean bfd_make_readable (bfd *abfd); |
252b5132 RH |
849 | |
850 | DESCRIPTION | |
851 | Takes a BFD as created by <<bfd_create>> and | |
852 | <<bfd_make_writable>> and converts it into one like as | |
853 | returned by <<bfd_openr>>. It does this by writing the | |
854 | contents out to the memory buffer, then reversing the | |
855 | direction. | |
856 | ||
857 | RETURNS | |
b34976b6 | 858 | <<TRUE>> is returned if all is ok, otherwise <<FALSE>>. */ |
252b5132 | 859 | |
b34976b6 | 860 | bfd_boolean |
c58b9523 | 861 | bfd_make_readable (bfd *abfd) |
252b5132 RH |
862 | { |
863 | if (abfd->direction != write_direction || !(abfd->flags & BFD_IN_MEMORY)) | |
864 | { | |
865 | bfd_set_error (bfd_error_invalid_operation); | |
b34976b6 | 866 | return FALSE; |
252b5132 RH |
867 | } |
868 | ||
869 | if (! BFD_SEND_FMT (abfd, _bfd_write_contents, (abfd))) | |
b34976b6 | 870 | return FALSE; |
252b5132 RH |
871 | |
872 | if (! BFD_SEND (abfd, _close_and_cleanup, (abfd))) | |
b34976b6 | 873 | return FALSE; |
252b5132 | 874 | |
252b5132 RH |
875 | abfd->arch_info = &bfd_default_arch_struct; |
876 | ||
877 | abfd->where = 0; | |
252b5132 | 878 | abfd->format = bfd_unknown; |
c58b9523 | 879 | abfd->my_archive = NULL; |
dc810e39 | 880 | abfd->origin = 0; |
b34976b6 AM |
881 | abfd->opened_once = FALSE; |
882 | abfd->output_has_begun = FALSE; | |
252b5132 | 883 | abfd->section_count = 0; |
c58b9523 | 884 | abfd->usrdata = NULL; |
b34976b6 | 885 | abfd->cacheable = FALSE; |
9e2278f5 | 886 | abfd->flags |= BFD_IN_MEMORY; |
b34976b6 | 887 | abfd->mtime_set = FALSE; |
252b5132 | 888 | |
b34976b6 | 889 | abfd->target_defaulted = TRUE; |
252b5132 RH |
890 | abfd->direction = read_direction; |
891 | abfd->sections = 0; | |
892 | abfd->symcount = 0; | |
893 | abfd->outsymbols = 0; | |
894 | abfd->tdata.any = 0; | |
895 | ||
e54fdaa5 AM |
896 | bfd_section_list_clear (abfd); |
897 | bfd_check_format (abfd, bfd_object); | |
252b5132 | 898 | |
b34976b6 | 899 | return TRUE; |
252b5132 RH |
900 | } |
901 | ||
902 | /* | |
59a9808d | 903 | FUNCTION |
252b5132 RH |
904 | bfd_alloc |
905 | ||
906 | SYNOPSIS | |
0fdea5ce | 907 | void *bfd_alloc (bfd *abfd, bfd_size_type wanted); |
252b5132 RH |
908 | |
909 | DESCRIPTION | |
910 | Allocate a block of @var{wanted} bytes of memory attached to | |
911 | <<abfd>> and return a pointer to it. | |
912 | */ | |
913 | ||
c58b9523 AM |
914 | void * |
915 | bfd_alloc (bfd *abfd, bfd_size_type size) | |
252b5132 | 916 | { |
c58b9523 | 917 | void *ret; |
252b5132 | 918 | |
dc810e39 AM |
919 | if (size != (unsigned long) size) |
920 | { | |
921 | bfd_set_error (bfd_error_no_memory); | |
922 | return NULL; | |
923 | } | |
924 | ||
a50b1753 | 925 | ret = objalloc_alloc ((struct objalloc *) abfd->memory, (unsigned long) size); |
252b5132 RH |
926 | if (ret == NULL) |
927 | bfd_set_error (bfd_error_no_memory); | |
928 | return ret; | |
929 | } | |
930 | ||
d0fb9a8d JJ |
931 | /* |
932 | INTERNAL_FUNCTION | |
933 | bfd_alloc2 | |
934 | ||
935 | SYNOPSIS | |
936 | void *bfd_alloc2 (bfd *abfd, bfd_size_type nmemb, bfd_size_type size); | |
937 | ||
938 | DESCRIPTION | |
939 | Allocate a block of @var{nmemb} elements of @var{size} bytes each | |
940 | of memory attached to <<abfd>> and return a pointer to it. | |
941 | */ | |
942 | ||
943 | void * | |
944 | bfd_alloc2 (bfd *abfd, bfd_size_type nmemb, bfd_size_type size) | |
945 | { | |
946 | void *ret; | |
947 | ||
948 | if ((nmemb | size) >= HALF_BFD_SIZE_TYPE | |
949 | && size != 0 | |
950 | && nmemb > ~(bfd_size_type) 0 / size) | |
951 | { | |
952 | bfd_set_error (bfd_error_no_memory); | |
953 | return NULL; | |
954 | } | |
955 | ||
956 | size *= nmemb; | |
957 | ||
958 | if (size != (unsigned long) size) | |
959 | { | |
960 | bfd_set_error (bfd_error_no_memory); | |
961 | return NULL; | |
962 | } | |
963 | ||
a50b1753 | 964 | ret = objalloc_alloc ((struct objalloc *) abfd->memory, (unsigned long) size); |
d0fb9a8d JJ |
965 | if (ret == NULL) |
966 | bfd_set_error (bfd_error_no_memory); | |
967 | return ret; | |
968 | } | |
969 | ||
c3e8c140 | 970 | /* |
59a9808d | 971 | FUNCTION |
c3e8c140 BE |
972 | bfd_zalloc |
973 | ||
974 | SYNOPSIS | |
975 | void *bfd_zalloc (bfd *abfd, bfd_size_type wanted); | |
976 | ||
977 | DESCRIPTION | |
978 | Allocate a block of @var{wanted} bytes of zeroed memory | |
979 | attached to <<abfd>> and return a pointer to it. | |
980 | */ | |
981 | ||
c58b9523 AM |
982 | void * |
983 | bfd_zalloc (bfd *abfd, bfd_size_type size) | |
252b5132 | 984 | { |
c58b9523 | 985 | void *res; |
252b5132 RH |
986 | |
987 | res = bfd_alloc (abfd, size); | |
988 | if (res) | |
dc810e39 | 989 | memset (res, 0, (size_t) size); |
252b5132 RH |
990 | return res; |
991 | } | |
992 | ||
d0fb9a8d JJ |
993 | /* |
994 | INTERNAL_FUNCTION | |
995 | bfd_zalloc2 | |
996 | ||
997 | SYNOPSIS | |
998 | void *bfd_zalloc2 (bfd *abfd, bfd_size_type nmemb, bfd_size_type size); | |
999 | ||
1000 | DESCRIPTION | |
1001 | Allocate a block of @var{nmemb} elements of @var{size} bytes each | |
1002 | of zeroed memory attached to <<abfd>> and return a pointer to it. | |
1003 | */ | |
1004 | ||
1005 | void * | |
1006 | bfd_zalloc2 (bfd *abfd, bfd_size_type nmemb, bfd_size_type size) | |
1007 | { | |
1008 | void *res; | |
1009 | ||
1010 | if ((nmemb | size) >= HALF_BFD_SIZE_TYPE | |
1011 | && size != 0 | |
1012 | && nmemb > ~(bfd_size_type) 0 / size) | |
1013 | { | |
1014 | bfd_set_error (bfd_error_no_memory); | |
1015 | return NULL; | |
1016 | } | |
1017 | ||
1018 | size *= nmemb; | |
1019 | ||
1020 | res = bfd_alloc (abfd, size); | |
1021 | if (res) | |
1022 | memset (res, 0, (size_t) size); | |
1023 | return res; | |
1024 | } | |
1025 | ||
73e87d70 AM |
1026 | /* Free a block allocated for a BFD. |
1027 | Note: Also frees all more recently allocated blocks! */ | |
252b5132 RH |
1028 | |
1029 | void | |
c58b9523 | 1030 | bfd_release (bfd *abfd, void *block) |
252b5132 RH |
1031 | { |
1032 | objalloc_free_block ((struct objalloc *) abfd->memory, block); | |
1033 | } | |
31f7ba04 NC |
1034 | |
1035 | ||
f12123c0 AM |
1036 | /* |
1037 | GNU Extension: separate debug-info files | |
1038 | ||
31f7ba04 NC |
1039 | The idea here is that a special section called .gnu_debuglink might be |
1040 | embedded in a binary file, which indicates that some *other* file | |
1041 | contains the real debugging information. This special section contains a | |
1042 | filename and CRC32 checksum, which we read and resolve to another file, | |
1043 | if it exists. | |
1044 | ||
1045 | This facilitates "optional" provision of debugging information, without | |
1046 | having to provide two complete copies of every binary object (with and | |
1047 | without debug symbols). | |
1048 | */ | |
1049 | ||
2593f09a | 1050 | #define GNU_DEBUGLINK ".gnu_debuglink" |
31f7ba04 | 1051 | /* |
2593f09a NC |
1052 | FUNCTION |
1053 | bfd_calc_gnu_debuglink_crc32 | |
31f7ba04 NC |
1054 | |
1055 | SYNOPSIS | |
c58b9523 AM |
1056 | unsigned long bfd_calc_gnu_debuglink_crc32 |
1057 | (unsigned long crc, const unsigned char *buf, bfd_size_type len); | |
31f7ba04 NC |
1058 | |
1059 | DESCRIPTION | |
2593f09a NC |
1060 | Computes a CRC value as used in the .gnu_debuglink section. |
1061 | Advances the previously computed @var{crc} value by computing | |
1062 | and adding in the crc32 for @var{len} bytes of @var{buf}. | |
1063 | ||
1064 | RETURNS | |
1065 | Return the updated CRC32 value. | |
f12123c0 | 1066 | */ |
31f7ba04 | 1067 | |
2593f09a | 1068 | unsigned long |
c58b9523 AM |
1069 | bfd_calc_gnu_debuglink_crc32 (unsigned long crc, |
1070 | const unsigned char *buf, | |
1071 | bfd_size_type len) | |
31f7ba04 NC |
1072 | { |
1073 | static const unsigned long crc32_table[256] = | |
1074 | { | |
1075 | 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, | |
1076 | 0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4, | |
1077 | 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, | |
1078 | 0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de, | |
1079 | 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856, | |
1080 | 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9, | |
1081 | 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4, | |
1082 | 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, | |
1083 | 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, | |
1084 | 0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a, | |
1085 | 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599, | |
1086 | 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924, | |
1087 | 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190, | |
1088 | 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, | |
1089 | 0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e, | |
1090 | 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01, | |
1091 | 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed, | |
1092 | 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950, | |
1093 | 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, | |
1094 | 0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, | |
1095 | 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, | |
1096 | 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5, | |
1097 | 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010, | |
1098 | 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f, | |
1099 | 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, | |
1100 | 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, | |
1101 | 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615, | |
1102 | 0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8, | |
1103 | 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344, | |
1104 | 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb, | |
1105 | 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, | |
1106 | 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, | |
1107 | 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, | |
1108 | 0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c, | |
1109 | 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef, | |
1110 | 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236, | |
1111 | 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, | |
1112 | 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, | |
1113 | 0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c, | |
1114 | 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713, | |
1115 | 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b, | |
1116 | 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242, | |
1117 | 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, | |
1118 | 0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, | |
1119 | 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278, | |
1120 | 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7, | |
1121 | 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66, | |
1122 | 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9, | |
1123 | 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, | |
1124 | 0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, | |
1125 | 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, | |
1126 | 0x2d02ef8d | |
1127 | }; | |
1128 | const unsigned char *end; | |
1129 | ||
1130 | crc = ~crc & 0xffffffff; | |
1131 | for (end = buf + len; buf < end; ++ buf) | |
1132 | crc = crc32_table[(crc ^ *buf) & 0xff] ^ (crc >> 8); | |
1133 | return ~crc & 0xffffffff;; | |
1134 | } | |
1135 | ||
1136 | ||
1137 | /* | |
1138 | INTERNAL_FUNCTION | |
1139 | get_debug_link_info | |
1140 | ||
1141 | SYNOPSIS | |
c58b9523 | 1142 | char *get_debug_link_info (bfd *abfd, unsigned long *crc32_out); |
31f7ba04 NC |
1143 | |
1144 | DESCRIPTION | |
1145 | fetch the filename and CRC32 value for any separate debuginfo | |
1146 | associated with @var{abfd}. Return NULL if no such info found, | |
1147 | otherwise return filename and update @var{crc32_out}. | |
1148 | */ | |
1149 | ||
1150 | static char * | |
c58b9523 | 1151 | get_debug_link_info (bfd *abfd, unsigned long *crc32_out) |
31f7ba04 | 1152 | { |
eea6121a | 1153 | asection *sect; |
31f7ba04 | 1154 | unsigned long crc32; |
eea6121a | 1155 | bfd_byte *contents; |
31f7ba04 | 1156 | int crc_offset; |
f075ee0c | 1157 | char *name; |
31f7ba04 NC |
1158 | |
1159 | BFD_ASSERT (abfd); | |
1160 | BFD_ASSERT (crc32_out); | |
1161 | ||
2593f09a | 1162 | sect = bfd_get_section_by_name (abfd, GNU_DEBUGLINK); |
31f7ba04 NC |
1163 | |
1164 | if (sect == NULL) | |
1165 | return NULL; | |
1166 | ||
eea6121a | 1167 | if (!bfd_malloc_and_get_section (abfd, sect, &contents)) |
31f7ba04 | 1168 | { |
eea6121a AM |
1169 | if (contents != NULL) |
1170 | free (contents); | |
31f7ba04 NC |
1171 | return NULL; |
1172 | } | |
1173 | ||
1174 | /* Crc value is stored after the filename, aligned up to 4 bytes. */ | |
f075ee0c AM |
1175 | name = (char *) contents; |
1176 | crc_offset = strlen (name) + 1; | |
31f7ba04 NC |
1177 | crc_offset = (crc_offset + 3) & ~3; |
1178 | ||
c58b9523 | 1179 | crc32 = bfd_get_32 (abfd, contents + crc_offset); |
31f7ba04 NC |
1180 | |
1181 | *crc32_out = crc32; | |
f075ee0c | 1182 | return name; |
31f7ba04 NC |
1183 | } |
1184 | ||
1185 | /* | |
1186 | INTERNAL_FUNCTION | |
1187 | separate_debug_file_exists | |
1188 | ||
1189 | SYNOPSIS | |
c58b9523 AM |
1190 | bfd_boolean separate_debug_file_exists |
1191 | (char *name, unsigned long crc32); | |
31f7ba04 NC |
1192 | |
1193 | DESCRIPTION | |
1194 | Checks to see if @var{name} is a file and if its contents | |
1195 | match @var{crc32}. | |
1196 | */ | |
1197 | ||
1198 | static bfd_boolean | |
c58b9523 | 1199 | separate_debug_file_exists (const char *name, const unsigned long crc) |
31f7ba04 | 1200 | { |
f075ee0c | 1201 | static unsigned char buffer [8 * 1024]; |
31f7ba04 | 1202 | unsigned long file_crc = 0; |
fed590bb | 1203 | FILE *f; |
2593f09a | 1204 | bfd_size_type count; |
31f7ba04 NC |
1205 | |
1206 | BFD_ASSERT (name); | |
1207 | ||
fed590bb AM |
1208 | f = real_fopen (name, FOPEN_RB); |
1209 | if (f == NULL) | |
31f7ba04 NC |
1210 | return FALSE; |
1211 | ||
fed590bb | 1212 | while ((count = fread (buffer, 1, sizeof (buffer), f)) > 0) |
2593f09a | 1213 | file_crc = bfd_calc_gnu_debuglink_crc32 (file_crc, buffer, count); |
31f7ba04 | 1214 | |
fed590bb | 1215 | fclose (f); |
31f7ba04 NC |
1216 | |
1217 | return crc == file_crc; | |
1218 | } | |
1219 | ||
1220 | ||
1221 | /* | |
1222 | INTERNAL_FUNCTION | |
1223 | find_separate_debug_file | |
1224 | ||
1225 | SYNOPSIS | |
c58b9523 | 1226 | char *find_separate_debug_file (bfd *abfd); |
31f7ba04 NC |
1227 | |
1228 | DESCRIPTION | |
1229 | Searches @var{abfd} for a reference to separate debugging | |
1230 | information, scans various locations in the filesystem, including | |
1231 | the file tree rooted at @var{debug_file_directory}, and returns a | |
1232 | filename of such debugging information if the file is found and has | |
1233 | matching CRC32. Returns NULL if no reference to debugging file | |
1234 | exists, or file cannot be found. | |
1235 | */ | |
1236 | ||
1237 | static char * | |
c58b9523 | 1238 | find_separate_debug_file (bfd *abfd, const char *debug_file_directory) |
31f7ba04 | 1239 | { |
91d6fa6a | 1240 | char *base; |
31f7ba04 NC |
1241 | char *dir; |
1242 | char *debugfile; | |
91910cdd | 1243 | char *canon_dir; |
31f7ba04 | 1244 | unsigned long crc32; |
3ea6b9a5 | 1245 | size_t dirlen; |
91910cdd | 1246 | size_t canon_dirlen; |
31f7ba04 NC |
1247 | |
1248 | BFD_ASSERT (abfd); | |
1249 | if (debug_file_directory == NULL) | |
1250 | debug_file_directory = "."; | |
1251 | ||
1252 | /* BFD may have been opened from a stream. */ | |
3ea6b9a5 AM |
1253 | if (abfd->filename == NULL) |
1254 | { | |
1255 | bfd_set_error (bfd_error_invalid_operation); | |
1256 | return NULL; | |
1257 | } | |
31f7ba04 | 1258 | |
91d6fa6a NC |
1259 | base = get_debug_link_info (abfd, & crc32); |
1260 | if (base == NULL) | |
31f7ba04 | 1261 | return NULL; |
2593f09a | 1262 | |
91d6fa6a | 1263 | if (base[0] == '\0') |
5ed6aba4 | 1264 | { |
91d6fa6a | 1265 | free (base); |
3ea6b9a5 | 1266 | bfd_set_error (bfd_error_no_debug_section); |
5ed6aba4 NC |
1267 | return NULL; |
1268 | } | |
31f7ba04 | 1269 | |
3ea6b9a5 AM |
1270 | for (dirlen = strlen (abfd->filename); dirlen > 0; dirlen--) |
1271 | if (IS_DIR_SEPARATOR (abfd->filename[dirlen - 1])) | |
1272 | break; | |
1273 | ||
a50b1753 | 1274 | dir = (char *) bfd_malloc (dirlen + 1); |
2593f09a NC |
1275 | if (dir == NULL) |
1276 | { | |
91d6fa6a | 1277 | free (base); |
2593f09a NC |
1278 | return NULL; |
1279 | } | |
3ea6b9a5 AM |
1280 | memcpy (dir, abfd->filename, dirlen); |
1281 | dir[dirlen] = '\0'; | |
1282 | ||
91910cdd AS |
1283 | /* Compute the canonical name of the bfd object with all symbolic links |
1284 | resolved, for use in the global debugfile directory. */ | |
1285 | canon_dir = lrealpath (abfd->filename); | |
1286 | for (canon_dirlen = strlen (canon_dir); canon_dirlen > 0; canon_dirlen--) | |
1287 | if (IS_DIR_SEPARATOR (canon_dir[canon_dirlen - 1])) | |
1288 | break; | |
1289 | canon_dir[canon_dirlen] = '\0'; | |
1290 | ||
a50b1753 NC |
1291 | debugfile = (char *) |
1292 | bfd_malloc (strlen (debug_file_directory) + 1 | |
1293 | + (canon_dirlen > dirlen ? canon_dirlen : dirlen) | |
1294 | + strlen (".debug/") | |
91d6fa6a | 1295 | + strlen (base) |
a50b1753 | 1296 | + 1); |
2593f09a NC |
1297 | if (debugfile == NULL) |
1298 | { | |
91d6fa6a | 1299 | free (base); |
2593f09a | 1300 | free (dir); |
91910cdd | 1301 | free (canon_dir); |
2593f09a NC |
1302 | return NULL; |
1303 | } | |
31f7ba04 NC |
1304 | |
1305 | /* First try in the same directory as the original file: */ | |
1306 | strcpy (debugfile, dir); | |
91d6fa6a | 1307 | strcat (debugfile, base); |
31f7ba04 NC |
1308 | |
1309 | if (separate_debug_file_exists (debugfile, crc32)) | |
1310 | { | |
91d6fa6a | 1311 | free (base); |
31f7ba04 | 1312 | free (dir); |
91910cdd | 1313 | free (canon_dir); |
31f7ba04 NC |
1314 | return debugfile; |
1315 | } | |
1316 | ||
1317 | /* Then try in a subdirectory called .debug. */ | |
1318 | strcpy (debugfile, dir); | |
1319 | strcat (debugfile, ".debug/"); | |
91d6fa6a | 1320 | strcat (debugfile, base); |
31f7ba04 NC |
1321 | |
1322 | if (separate_debug_file_exists (debugfile, crc32)) | |
1323 | { | |
91d6fa6a | 1324 | free (base); |
31f7ba04 | 1325 | free (dir); |
91910cdd | 1326 | free (canon_dir); |
31f7ba04 NC |
1327 | return debugfile; |
1328 | } | |
1329 | ||
1330 | /* Then try in the global debugfile directory. */ | |
1331 | strcpy (debugfile, debug_file_directory); | |
91910cdd AS |
1332 | dirlen = strlen (debug_file_directory) - 1; |
1333 | if (dirlen > 0 | |
1334 | && debug_file_directory[dirlen] != '/' | |
1335 | && canon_dir[0] != '/') | |
31f7ba04 | 1336 | strcat (debugfile, "/"); |
91910cdd | 1337 | strcat (debugfile, canon_dir); |
91d6fa6a | 1338 | strcat (debugfile, base); |
31f7ba04 NC |
1339 | |
1340 | if (separate_debug_file_exists (debugfile, crc32)) | |
1341 | { | |
91d6fa6a | 1342 | free (base); |
31f7ba04 | 1343 | free (dir); |
91910cdd | 1344 | free (canon_dir); |
31f7ba04 NC |
1345 | return debugfile; |
1346 | } | |
1347 | ||
1348 | free (debugfile); | |
91d6fa6a | 1349 | free (base); |
31f7ba04 | 1350 | free (dir); |
91910cdd | 1351 | free (canon_dir); |
31f7ba04 NC |
1352 | return NULL; |
1353 | } | |
1354 | ||
1355 | ||
1356 | /* | |
1357 | FUNCTION | |
1358 | bfd_follow_gnu_debuglink | |
1359 | ||
1360 | SYNOPSIS | |
c58b9523 | 1361 | char *bfd_follow_gnu_debuglink (bfd *abfd, const char *dir); |
31f7ba04 NC |
1362 | |
1363 | DESCRIPTION | |
1364 | ||
1365 | Takes a BFD and searches it for a .gnu_debuglink section. If this | |
28d39d1a NC |
1366 | section is found, it examines the section for the name and checksum |
1367 | of a '.debug' file containing auxiliary debugging information. It | |
1368 | then searches the filesystem for this .debug file in some standard | |
31f7ba04 | 1369 | locations, including the directory tree rooted at @var{dir}, and if |
28d39d1a NC |
1370 | found returns the full filename. |
1371 | ||
1372 | If @var{dir} is NULL, it will search a default path configured into | |
1373 | libbfd at build time. [XXX this feature is not currently | |
1374 | implemented]. | |
31f7ba04 NC |
1375 | |
1376 | RETURNS | |
1377 | <<NULL>> on any errors or failure to locate the .debug file, | |
1378 | otherwise a pointer to a heap-allocated string containing the | |
28d39d1a | 1379 | filename. The caller is responsible for freeing this string. |
31f7ba04 NC |
1380 | */ |
1381 | ||
1382 | char * | |
c58b9523 | 1383 | bfd_follow_gnu_debuglink (bfd *abfd, const char *dir) |
31f7ba04 | 1384 | { |
31f7ba04 NC |
1385 | return find_separate_debug_file (abfd, dir); |
1386 | } | |
2593f09a NC |
1387 | |
1388 | /* | |
1389 | FUNCTION | |
e7c81c25 | 1390 | bfd_create_gnu_debuglink_section |
2593f09a NC |
1391 | |
1392 | SYNOPSIS | |
198beae2 | 1393 | struct bfd_section *bfd_create_gnu_debuglink_section |
c58b9523 | 1394 | (bfd *abfd, const char *filename); |
2593f09a NC |
1395 | |
1396 | DESCRIPTION | |
1397 | ||
e7c81c25 NC |
1398 | Takes a @var{BFD} and adds a .gnu_debuglink section to it. The section is sized |
1399 | to be big enough to contain a link to the specified @var{filename}. | |
1400 | ||
1401 | RETURNS | |
1402 | A pointer to the new section is returned if all is ok. Otherwise <<NULL>> is | |
f12123c0 | 1403 | returned and bfd_error is set. |
e7c81c25 NC |
1404 | */ |
1405 | ||
1406 | asection * | |
c58b9523 | 1407 | bfd_create_gnu_debuglink_section (bfd *abfd, const char *filename) |
e7c81c25 | 1408 | { |
c58b9523 AM |
1409 | asection *sect; |
1410 | bfd_size_type debuglink_size; | |
117ed4f8 | 1411 | flagword flags; |
e7c81c25 NC |
1412 | |
1413 | if (abfd == NULL || filename == NULL) | |
1414 | { | |
1415 | bfd_set_error (bfd_error_invalid_operation); | |
1416 | return NULL; | |
1417 | } | |
1418 | ||
1419 | /* Strip off any path components in filename. */ | |
1420 | filename = lbasename (filename); | |
f12123c0 | 1421 | |
e7c81c25 NC |
1422 | sect = bfd_get_section_by_name (abfd, GNU_DEBUGLINK); |
1423 | if (sect) | |
1424 | { | |
1425 | /* Section already exists. */ | |
1426 | bfd_set_error (bfd_error_invalid_operation); | |
1427 | return NULL; | |
1428 | } | |
1429 | ||
117ed4f8 AM |
1430 | flags = SEC_HAS_CONTENTS | SEC_READONLY | SEC_DEBUGGING; |
1431 | sect = bfd_make_section_with_flags (abfd, GNU_DEBUGLINK, flags); | |
e7c81c25 NC |
1432 | if (sect == NULL) |
1433 | return NULL; | |
1434 | ||
e7c81c25 NC |
1435 | debuglink_size = strlen (filename) + 1; |
1436 | debuglink_size += 3; | |
1437 | debuglink_size &= ~3; | |
1438 | debuglink_size += 4; | |
1439 | ||
1440 | if (! bfd_set_section_size (abfd, sect, debuglink_size)) | |
1441 | /* XXX Should we delete the section from the bfd ? */ | |
1442 | return NULL; | |
f12123c0 | 1443 | |
e7c81c25 NC |
1444 | return sect; |
1445 | } | |
1446 | ||
1447 | ||
1448 | /* | |
1449 | FUNCTION | |
1450 | bfd_fill_in_gnu_debuglink_section | |
1451 | ||
1452 | SYNOPSIS | |
c58b9523 | 1453 | bfd_boolean bfd_fill_in_gnu_debuglink_section |
198beae2 | 1454 | (bfd *abfd, struct bfd_section *sect, const char *filename); |
e7c81c25 NC |
1455 | |
1456 | DESCRIPTION | |
1457 | ||
1458 | Takes a @var{BFD} and containing a .gnu_debuglink section @var{SECT} | |
1459 | and fills in the contents of the section to contain a link to the | |
1460 | specified @var{filename}. The filename should be relative to the | |
1461 | current directory. | |
2593f09a NC |
1462 | |
1463 | RETURNS | |
1464 | <<TRUE>> is returned if all is ok. Otherwise <<FALSE>> is returned | |
f12123c0 | 1465 | and bfd_error is set. |
2593f09a NC |
1466 | */ |
1467 | ||
1468 | bfd_boolean | |
c58b9523 | 1469 | bfd_fill_in_gnu_debuglink_section (bfd *abfd, |
198beae2 | 1470 | struct bfd_section *sect, |
c58b9523 | 1471 | const char *filename) |
2593f09a | 1472 | { |
2593f09a NC |
1473 | bfd_size_type debuglink_size; |
1474 | unsigned long crc32; | |
1475 | char * contents; | |
1476 | bfd_size_type crc_offset; | |
1477 | FILE * handle; | |
f075ee0c | 1478 | static unsigned char buffer[8 * 1024]; |
2593f09a | 1479 | size_t count; |
3ea6b9a5 | 1480 | size_t filelen; |
2593f09a | 1481 | |
e7c81c25 | 1482 | if (abfd == NULL || sect == NULL || filename == NULL) |
2593f09a NC |
1483 | { |
1484 | bfd_set_error (bfd_error_invalid_operation); | |
1485 | return FALSE; | |
1486 | } | |
1487 | ||
1488 | /* Make sure that we can read the file. | |
1489 | XXX - Should we attempt to locate the debug info file using the same | |
1490 | algorithm as gdb ? At the moment, since we are creating the | |
1491 | .gnu_debuglink section, we insist upon the user providing us with a | |
1492 | correct-for-section-creation-time path, but this need not conform to | |
1493 | the gdb location algorithm. */ | |
2e6f4fae | 1494 | handle = real_fopen (filename, FOPEN_RB); |
2593f09a NC |
1495 | if (handle == NULL) |
1496 | { | |
1497 | bfd_set_error (bfd_error_system_call); | |
1498 | return FALSE; | |
1499 | } | |
1500 | ||
1501 | crc32 = 0; | |
1502 | while ((count = fread (buffer, 1, sizeof buffer, handle)) > 0) | |
1503 | crc32 = bfd_calc_gnu_debuglink_crc32 (crc32, buffer, count); | |
1504 | fclose (handle); | |
1505 | ||
1506 | /* Strip off any path components in filename, | |
1507 | now that we no longer need them. */ | |
1508 | filename = lbasename (filename); | |
f12123c0 | 1509 | |
3ea6b9a5 AM |
1510 | filelen = strlen (filename); |
1511 | debuglink_size = filelen + 1; | |
2593f09a NC |
1512 | debuglink_size += 3; |
1513 | debuglink_size &= ~3; | |
1514 | debuglink_size += 4; | |
1515 | ||
a50b1753 | 1516 | contents = (char *) bfd_malloc (debuglink_size); |
2593f09a NC |
1517 | if (contents == NULL) |
1518 | { | |
1519 | /* XXX Should we delete the section from the bfd ? */ | |
2593f09a NC |
1520 | return FALSE; |
1521 | } | |
1522 | ||
2593f09a | 1523 | crc_offset = debuglink_size - 4; |
3ea6b9a5 AM |
1524 | memcpy (contents, filename, filelen); |
1525 | memset (contents + filelen, 0, crc_offset - filelen); | |
2593f09a | 1526 | |
c58b9523 | 1527 | bfd_put_32 (abfd, crc32, contents + crc_offset); |
2593f09a | 1528 | |
c58b9523 | 1529 | if (! bfd_set_section_contents (abfd, sect, contents, 0, debuglink_size)) |
2593f09a NC |
1530 | { |
1531 | /* XXX Should we delete the section from the bfd ? */ | |
1532 | free (contents); | |
1533 | return FALSE; | |
1534 | } | |
1535 | ||
1536 | return TRUE; | |
1537 | } |