Commit | Line | Data |
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252b5132 | 1 | /* Assorted BFD support routines, only used internally. |
250d07de | 2 | Copyright (C) 1990-2021 Free Software Foundation, Inc. |
252b5132 RH |
3 | Written by Cygnus Support. |
4 | ||
ca09e32b | 5 | This file is part of BFD, the Binary File Descriptor library. |
252b5132 | 6 | |
ca09e32b NC |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
cd123cb7 | 9 | the Free Software Foundation; either version 3 of the License, or |
ca09e32b | 10 | (at your option) any later version. |
252b5132 | 11 | |
ca09e32b NC |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
252b5132 | 16 | |
ca09e32b NC |
17 | You should have received a copy of the GNU General Public License |
18 | along with this program; if not, write to the Free Software | |
cd123cb7 NC |
19 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
20 | MA 02110-1301, USA. */ | |
252b5132 | 21 | |
252b5132 | 22 | #include "sysdep.h" |
3db64b00 | 23 | #include "bfd.h" |
252b5132 RH |
24 | #include "libbfd.h" |
25 | ||
26 | #ifndef HAVE_GETPAGESIZE | |
27 | #define getpagesize() 2048 | |
28 | #endif | |
29 | ||
252b5132 RH |
30 | /* |
31 | SECTION | |
1b74d094 BW |
32 | Implementation details |
33 | ||
34 | SUBSECTION | |
252b5132 RH |
35 | Internal functions |
36 | ||
37 | DESCRIPTION | |
38 | These routines are used within BFD. | |
39 | They are not intended for export, but are documented here for | |
40 | completeness. | |
41 | */ | |
42 | ||
0a1b45a2 | 43 | bool |
d00dd7dc AM |
44 | _bfd_bool_bfd_false (bfd *abfd ATTRIBUTE_UNUSED) |
45 | { | |
0a1b45a2 | 46 | return false; |
d00dd7dc AM |
47 | } |
48 | ||
0a1b45a2 | 49 | bool |
d00dd7dc AM |
50 | _bfd_bool_bfd_asymbol_false (bfd *abfd ATTRIBUTE_UNUSED, |
51 | asymbol *sym ATTRIBUTE_UNUSED) | |
52 | { | |
0a1b45a2 | 53 | return false; |
d00dd7dc AM |
54 | } |
55 | ||
252b5132 RH |
56 | /* A routine which is used in target vectors for unsupported |
57 | operations. */ | |
58 | ||
0a1b45a2 | 59 | bool |
d00dd7dc | 60 | _bfd_bool_bfd_false_error (bfd *ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
61 | { |
62 | bfd_set_error (bfd_error_invalid_operation); | |
0a1b45a2 | 63 | return false; |
252b5132 RH |
64 | } |
65 | ||
0a1b45a2 | 66 | bool |
d00dd7dc AM |
67 | _bfd_bool_bfd_link_false_error (bfd *abfd, |
68 | struct bfd_link_info *info ATTRIBUTE_UNUSED) | |
69 | { | |
70 | return _bfd_bool_bfd_false_error (abfd); | |
71 | } | |
72 | ||
252b5132 RH |
73 | /* A routine which is used in target vectors for supported operations |
74 | which do not actually do anything. */ | |
75 | ||
0a1b45a2 | 76 | bool |
d00dd7dc AM |
77 | _bfd_bool_bfd_true (bfd *ignore ATTRIBUTE_UNUSED) |
78 | { | |
0a1b45a2 | 79 | return true; |
d00dd7dc AM |
80 | } |
81 | ||
0a1b45a2 | 82 | bool |
d00dd7dc AM |
83 | _bfd_bool_bfd_link_true (bfd *abfd ATTRIBUTE_UNUSED, |
84 | struct bfd_link_info *info ATTRIBUTE_UNUSED) | |
85 | { | |
0a1b45a2 | 86 | return true; |
d00dd7dc AM |
87 | } |
88 | ||
0a1b45a2 | 89 | bool |
d00dd7dc AM |
90 | _bfd_bool_bfd_bfd_true (bfd *ibfd ATTRIBUTE_UNUSED, |
91 | bfd *obfd ATTRIBUTE_UNUSED) | |
92 | { | |
0a1b45a2 | 93 | return true; |
d00dd7dc AM |
94 | } |
95 | ||
0a1b45a2 | 96 | bool |
d00dd7dc AM |
97 | _bfd_bool_bfd_uint_true (bfd *abfd ATTRIBUTE_UNUSED, |
98 | unsigned int flags ATTRIBUTE_UNUSED) | |
99 | { | |
0a1b45a2 | 100 | return true; |
d00dd7dc AM |
101 | } |
102 | ||
0a1b45a2 | 103 | bool |
d00dd7dc AM |
104 | _bfd_bool_bfd_asection_bfd_asection_true (bfd *ibfd ATTRIBUTE_UNUSED, |
105 | asection *isec ATTRIBUTE_UNUSED, | |
106 | bfd *obfd ATTRIBUTE_UNUSED, | |
107 | asection *osec ATTRIBUTE_UNUSED) | |
108 | { | |
0a1b45a2 | 109 | return true; |
d00dd7dc AM |
110 | } |
111 | ||
0a1b45a2 | 112 | bool |
d00dd7dc AM |
113 | _bfd_bool_bfd_asymbol_bfd_asymbol_true (bfd *ibfd ATTRIBUTE_UNUSED, |
114 | asymbol *isym ATTRIBUTE_UNUSED, | |
115 | bfd *obfd ATTRIBUTE_UNUSED, | |
116 | asymbol *osym ATTRIBUTE_UNUSED) | |
117 | { | |
0a1b45a2 | 118 | return true; |
d00dd7dc AM |
119 | } |
120 | ||
0a1b45a2 | 121 | bool |
d00dd7dc AM |
122 | _bfd_bool_bfd_ptr_true (bfd *abfd ATTRIBUTE_UNUSED, |
123 | void *ptr ATTRIBUTE_UNUSED) | |
252b5132 | 124 | { |
0a1b45a2 | 125 | return true; |
252b5132 RH |
126 | } |
127 | ||
128 | /* A routine which is used in target vectors for unsupported | |
129 | operations which return a pointer value. */ | |
130 | ||
c58b9523 | 131 | void * |
d00dd7dc | 132 | _bfd_ptr_bfd_null_error (bfd *ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
133 | { |
134 | bfd_set_error (bfd_error_invalid_operation); | |
135 | return NULL; | |
136 | } | |
137 | ||
509945ae | 138 | int |
d00dd7dc | 139 | _bfd_int_bfd_0 (bfd *ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
140 | { |
141 | return 0; | |
142 | } | |
143 | ||
509945ae | 144 | unsigned int |
d00dd7dc | 145 | _bfd_uint_bfd_0 (bfd *ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
146 | { |
147 | return 0; | |
148 | } | |
149 | ||
252b5132 | 150 | long |
d00dd7dc | 151 | _bfd_long_bfd_0 (bfd *ignore ATTRIBUTE_UNUSED) |
252b5132 | 152 | { |
d00dd7dc | 153 | return 0; |
68d20676 NC |
154 | } |
155 | ||
252b5132 RH |
156 | /* A routine which is used in target vectors for unsupported |
157 | operations which return -1 on error. */ | |
158 | ||
252b5132 | 159 | long |
d00dd7dc | 160 | _bfd_long_bfd_n1_error (bfd *ignore_abfd ATTRIBUTE_UNUSED) |
252b5132 RH |
161 | { |
162 | bfd_set_error (bfd_error_invalid_operation); | |
163 | return -1; | |
164 | } | |
165 | ||
509945ae | 166 | void |
d00dd7dc AM |
167 | _bfd_void_bfd (bfd *ignore ATTRIBUTE_UNUSED) |
168 | { | |
169 | } | |
170 | ||
171 | void | |
172 | _bfd_void_bfd_link (bfd *abfd ATTRIBUTE_UNUSED, | |
173 | struct bfd_link_info *info ATTRIBUTE_UNUSED) | |
174 | { | |
175 | } | |
176 | ||
177 | void | |
178 | _bfd_void_bfd_asection (bfd *abfd ATTRIBUTE_UNUSED, | |
179 | asection *sec ATTRIBUTE_UNUSED) | |
252b5132 RH |
180 | { |
181 | } | |
182 | ||
72f6ea61 AM |
183 | long |
184 | _bfd_norelocs_get_reloc_upper_bound (bfd *abfd ATTRIBUTE_UNUSED, | |
185 | asection *sec ATTRIBUTE_UNUSED) | |
186 | { | |
187 | return sizeof (arelent *); | |
188 | } | |
189 | ||
190 | long | |
191 | _bfd_norelocs_canonicalize_reloc (bfd *abfd ATTRIBUTE_UNUSED, | |
192 | asection *sec ATTRIBUTE_UNUSED, | |
193 | arelent **relptr, | |
194 | asymbol **symbols ATTRIBUTE_UNUSED) | |
195 | { | |
196 | *relptr = NULL; | |
197 | return 0; | |
198 | } | |
199 | ||
23186865 JM |
200 | void |
201 | _bfd_norelocs_set_reloc (bfd *abfd ATTRIBUTE_UNUSED, | |
07d6d2b8 AM |
202 | asection *sec ATTRIBUTE_UNUSED, |
203 | arelent **relptr ATTRIBUTE_UNUSED, | |
204 | unsigned int count ATTRIBUTE_UNUSED) | |
23186865 JM |
205 | { |
206 | /* Do nothing. */ | |
207 | } | |
208 | ||
0a1b45a2 | 209 | bool |
c58b9523 AM |
210 | _bfd_nocore_core_file_matches_executable_p |
211 | (bfd *ignore_core_bfd ATTRIBUTE_UNUSED, | |
212 | bfd *ignore_exec_bfd ATTRIBUTE_UNUSED) | |
252b5132 RH |
213 | { |
214 | bfd_set_error (bfd_error_invalid_operation); | |
0a1b45a2 | 215 | return false; |
252b5132 RH |
216 | } |
217 | ||
218 | /* Routine to handle core_file_failing_command entry point for targets | |
219 | without core file support. */ | |
220 | ||
252b5132 | 221 | char * |
c58b9523 | 222 | _bfd_nocore_core_file_failing_command (bfd *ignore_abfd ATTRIBUTE_UNUSED) |
252b5132 RH |
223 | { |
224 | bfd_set_error (bfd_error_invalid_operation); | |
c58b9523 | 225 | return NULL; |
252b5132 RH |
226 | } |
227 | ||
228 | /* Routine to handle core_file_failing_signal entry point for targets | |
229 | without core file support. */ | |
230 | ||
252b5132 | 231 | int |
c58b9523 | 232 | _bfd_nocore_core_file_failing_signal (bfd *ignore_abfd ATTRIBUTE_UNUSED) |
252b5132 RH |
233 | { |
234 | bfd_set_error (bfd_error_invalid_operation); | |
235 | return 0; | |
236 | } | |
237 | ||
261b8d08 PA |
238 | /* Routine to handle the core_file_pid entry point for targets without |
239 | core file support. */ | |
240 | ||
241 | int | |
242 | _bfd_nocore_core_file_pid (bfd *ignore_abfd ATTRIBUTE_UNUSED) | |
243 | { | |
244 | bfd_set_error (bfd_error_invalid_operation); | |
245 | return 0; | |
246 | } | |
247 | ||
cb001c0d | 248 | bfd_cleanup |
c58b9523 | 249 | _bfd_dummy_target (bfd *ignore_abfd ATTRIBUTE_UNUSED) |
252b5132 RH |
250 | { |
251 | bfd_set_error (bfd_error_wrong_format); | |
252 | return 0; | |
253 | } | |
254 | \f | |
255 | /* Allocate memory using malloc. */ | |
256 | ||
cb87d9f1 AM |
257 | #ifndef SSIZE_MAX |
258 | #define SSIZE_MAX ((size_t) -1 >> 1) | |
259 | #endif | |
260 | ||
bd6d8601 NC |
261 | /* |
262 | INTERNAL_FUNCTION | |
263 | bfd_malloc | |
264 | ||
265 | SYNOPSIS | |
266 | extern void * bfd_malloc (bfd_size_type SIZE) ATTRIBUTE_HIDDEN; | |
267 | ||
268 | DESCRIPTION | |
269 | Returns a pointer to an allocated block of memory that is at least | |
270 | SIZE bytes long. If SIZE is 0 then it will be treated as if it were | |
271 | 1. If SIZE is too big then NULL will be returned. | |
272 | ||
273 | Returns NULL upon error and sets bfd_error. | |
274 | */ | |
c58b9523 AM |
275 | void * |
276 | bfd_malloc (bfd_size_type size) | |
252b5132 | 277 | { |
c58b9523 | 278 | void *ptr; |
db6b071a | 279 | size_t sz = (size_t) size; |
252b5132 | 280 | |
db6b071a NC |
281 | if (size != sz |
282 | /* This is to pacify memory checkers like valgrind. */ | |
cb87d9f1 | 283 | || sz > SSIZE_MAX) |
dc810e39 AM |
284 | { |
285 | bfd_set_error (bfd_error_no_memory); | |
286 | return NULL; | |
287 | } | |
288 | ||
bd6d8601 NC |
289 | ptr = malloc (sz ? sz : 1); |
290 | if (ptr == NULL) | |
252b5132 | 291 | bfd_set_error (bfd_error_no_memory); |
dc810e39 | 292 | |
252b5132 RH |
293 | return ptr; |
294 | } | |
295 | ||
bd6d8601 NC |
296 | /* |
297 | INTERNAL_FUNCTION | |
298 | bfd_realloc | |
299 | ||
300 | SYNOPSIS | |
301 | extern void * bfd_realloc (void * MEM, bfd_size_type SIZE) ATTRIBUTE_HIDDEN; | |
302 | ||
303 | DESCRIPTION | |
304 | Returns a pointer to an allocated block of memory that is at least | |
305 | SIZE bytes long. If SIZE is 0 then it will be treated as if it were | |
306 | 1. If SIZE is too big then NULL will be returned. | |
307 | ||
308 | If MEM is not NULL then it must point to an allocated block of memory. | |
309 | If this block is large enough then MEM may be used as the return | |
310 | value for this function, but this is not guaranteed. | |
311 | ||
312 | If MEM is not returned then the first N bytes in the returned block | |
313 | will be identical to the first N bytes in region pointed to by MEM, | |
314 | where N is the lessor of SIZE and the length of the region of memory | |
315 | currently addressed by MEM. | |
316 | ||
317 | Returns NULL upon error and sets bfd_error. | |
318 | */ | |
c58b9523 AM |
319 | void * |
320 | bfd_realloc (void *ptr, bfd_size_type size) | |
252b5132 | 321 | { |
c58b9523 | 322 | void *ret; |
db6b071a | 323 | size_t sz = (size_t) size; |
252b5132 | 324 | |
db6b071a NC |
325 | if (ptr == NULL) |
326 | return bfd_malloc (size); | |
327 | ||
328 | if (size != sz | |
329 | /* This is to pacify memory checkers like valgrind. */ | |
cb87d9f1 | 330 | || sz > SSIZE_MAX) |
dc810e39 AM |
331 | { |
332 | bfd_set_error (bfd_error_no_memory); | |
333 | return NULL; | |
334 | } | |
335 | ||
bd6d8601 NC |
336 | /* The behaviour of realloc(0) is implementation defined, |
337 | but for this function we always allocate memory. */ | |
338 | ret = realloc (ptr, sz ? sz : 1); | |
252b5132 | 339 | |
bd6d8601 | 340 | if (ret == NULL) |
252b5132 RH |
341 | bfd_set_error (bfd_error_no_memory); |
342 | ||
343 | return ret; | |
344 | } | |
345 | ||
bd6d8601 NC |
346 | /* |
347 | INTERNAL_FUNCTION | |
348 | bfd_realloc_or_free | |
349 | ||
350 | SYNOPSIS | |
351 | extern void * bfd_realloc_or_free (void * MEM, bfd_size_type SIZE) ATTRIBUTE_HIDDEN; | |
515ef31d | 352 | |
bd6d8601 NC |
353 | DESCRIPTION |
354 | Returns a pointer to an allocated block of memory that is at least | |
355 | SIZE bytes long. If SIZE is 0 then no memory will be allocated, | |
356 | MEM will be freed, and NULL will be returned. This will not cause | |
357 | bfd_error to be set. | |
358 | ||
359 | If SIZE is too big then NULL will be returned and bfd_error will be | |
360 | set. | |
361 | ||
362 | If MEM is not NULL then it must point to an allocated block of memory. | |
363 | If this block is large enough then MEM may be used as the return | |
364 | value for this function, but this is not guaranteed. | |
365 | ||
366 | If MEM is not returned then the first N bytes in the returned block | |
367 | will be identical to the first N bytes in region pointed to by MEM, | |
368 | where N is the lessor of SIZE and the length of the region of memory | |
369 | currently addressed by MEM. | |
370 | */ | |
515ef31d NC |
371 | void * |
372 | bfd_realloc_or_free (void *ptr, bfd_size_type size) | |
373 | { | |
bd6d8601 | 374 | void *ret; |
515ef31d | 375 | |
bd6d8601 NC |
376 | /* The behaviour of realloc(0) is implementation defined, but |
377 | for this function we treat it is always freeing the memory. */ | |
378 | if (size == 0) | |
379 | { | |
380 | free (ptr); | |
381 | return NULL; | |
382 | } | |
383 | ||
384 | ret = bfd_realloc (ptr, size); | |
385 | if (ret == NULL) | |
db6b071a | 386 | free (ptr); |
515ef31d NC |
387 | |
388 | return ret; | |
389 | } | |
390 | ||
bd6d8601 NC |
391 | /* |
392 | INTERNAL_FUNCTION | |
393 | bfd_zmalloc | |
252b5132 | 394 | |
bd6d8601 NC |
395 | SYNOPSIS |
396 | extern void * bfd_zmalloc (bfd_size_type SIZE) ATTRIBUTE_HIDDEN; | |
397 | ||
398 | DESCRIPTION | |
399 | Returns a pointer to an allocated block of memory that is at least | |
400 | SIZE bytes long. If SIZE is 0 then it will be treated as if it were | |
401 | 1. If SIZE is too big then NULL will be returned. | |
402 | ||
403 | Returns NULL upon error and sets bfd_error. | |
404 | ||
405 | If NULL is not returned then the allocated block of memory will | |
406 | have been cleared. | |
407 | */ | |
c58b9523 AM |
408 | void * |
409 | bfd_zmalloc (bfd_size_type size) | |
252b5132 | 410 | { |
db6b071a | 411 | void *ptr = bfd_malloc (size); |
252b5132 | 412 | |
bd6d8601 NC |
413 | if (ptr != NULL) |
414 | memset (ptr, 0, size ? (size_t) size : 1); | |
252b5132 RH |
415 | |
416 | return ptr; | |
417 | } | |
d0fb9a8d | 418 | |
252b5132 RH |
419 | /* |
420 | INTERNAL_FUNCTION | |
421 | bfd_write_bigendian_4byte_int | |
422 | ||
423 | SYNOPSIS | |
0a1b45a2 | 424 | bool bfd_write_bigendian_4byte_int (bfd *, unsigned int); |
252b5132 RH |
425 | |
426 | DESCRIPTION | |
427 | Write a 4 byte integer @var{i} to the output BFD @var{abfd}, in big | |
428 | endian order regardless of what else is going on. This is useful in | |
429 | archives. | |
430 | ||
431 | */ | |
0a1b45a2 | 432 | bool |
c58b9523 | 433 | bfd_write_bigendian_4byte_int (bfd *abfd, unsigned int i) |
252b5132 RH |
434 | { |
435 | bfd_byte buffer[4]; | |
dc810e39 | 436 | bfd_putb32 ((bfd_vma) i, buffer); |
c58b9523 | 437 | return bfd_bwrite (buffer, (bfd_size_type) 4, abfd) == 4; |
252b5132 RH |
438 | } |
439 | ||
252b5132 RH |
440 | \f |
441 | /** The do-it-yourself (byte) sex-change kit */ | |
442 | ||
443 | /* The middle letter e.g. get<b>short indicates Big or Little endian | |
444 | target machine. It doesn't matter what the byte order of the host | |
445 | machine is; these routines work for either. */ | |
446 | ||
447 | /* FIXME: Should these take a count argument? | |
448 | Answer (gnu@cygnus.com): No, but perhaps they should be inline | |
07d6d2b8 AM |
449 | functions in swap.h #ifdef __GNUC__. |
450 | Gprof them later and find out. */ | |
252b5132 RH |
451 | |
452 | /* | |
453 | FUNCTION | |
454 | bfd_put_size | |
455 | FUNCTION | |
456 | bfd_get_size | |
457 | ||
458 | DESCRIPTION | |
459 | These macros as used for reading and writing raw data in | |
460 | sections; each access (except for bytes) is vectored through | |
461 | the target format of the BFD and mangled accordingly. The | |
462 | mangling performs any necessary endian translations and | |
463 | removes alignment restrictions. Note that types accepted and | |
464 | returned by these macros are identical so they can be swapped | |
465 | around in macros---for example, @file{libaout.h} defines <<GET_WORD>> | |
466 | to either <<bfd_get_32>> or <<bfd_get_64>>. | |
467 | ||
468 | In the put routines, @var{val} must be a <<bfd_vma>>. If we are on a | |
469 | system without prototypes, the caller is responsible for making | |
470 | sure that is true, with a cast if necessary. We don't cast | |
471 | them in the macro definitions because that would prevent <<lint>> | |
472 | or <<gcc -Wall>> from detecting sins such as passing a pointer. | |
473 | To detect calling these with less than a <<bfd_vma>>, use | |
474 | <<gcc -Wconversion>> on a host with 64 bit <<bfd_vma>>'s. | |
475 | ||
476 | . | |
477 | .{* Byte swapping macros for user section data. *} | |
478 | . | |
479 | .#define bfd_put_8(abfd, val, ptr) \ | |
edeb6e24 | 480 | . ((void) (*((unsigned char *) (ptr)) = (val) & 0xff)) |
252b5132 | 481 | .#define bfd_put_signed_8 \ |
c58b9523 | 482 | . bfd_put_8 |
252b5132 | 483 | .#define bfd_get_8(abfd, ptr) \ |
09c78487 | 484 | . ((bfd_vma) *(const unsigned char *) (ptr) & 0xff) |
252b5132 | 485 | .#define bfd_get_signed_8(abfd, ptr) \ |
09c78487 | 486 | . ((((bfd_signed_vma) *(const unsigned char *) (ptr) & 0xff) ^ 0x80) - 0x80) |
252b5132 RH |
487 | . |
488 | .#define bfd_put_16(abfd, val, ptr) \ | |
c58b9523 | 489 | . BFD_SEND (abfd, bfd_putx16, ((val),(ptr))) |
252b5132 | 490 | .#define bfd_put_signed_16 \ |
c58b9523 | 491 | . bfd_put_16 |
252b5132 | 492 | .#define bfd_get_16(abfd, ptr) \ |
c58b9523 | 493 | . BFD_SEND (abfd, bfd_getx16, (ptr)) |
252b5132 | 494 | .#define bfd_get_signed_16(abfd, ptr) \ |
c58b9523 | 495 | . BFD_SEND (abfd, bfd_getx_signed_16, (ptr)) |
252b5132 | 496 | . |
370e4b50 JD |
497 | .#define bfd_put_24(abfd, val, ptr) \ |
498 | . do \ | |
499 | . if (bfd_big_endian (abfd)) \ | |
500 | . bfd_putb24 ((val), (ptr)); \ | |
501 | . else \ | |
502 | . bfd_putl24 ((val), (ptr)); \ | |
503 | . while (0) | |
504 | . | |
505 | .bfd_vma bfd_getb24 (const void *p); | |
506 | .bfd_vma bfd_getl24 (const void *p); | |
507 | . | |
508 | .#define bfd_get_24(abfd, ptr) \ | |
509 | . (bfd_big_endian (abfd) ? bfd_getb24 (ptr) : bfd_getl24 (ptr)) | |
510 | . | |
252b5132 | 511 | .#define bfd_put_32(abfd, val, ptr) \ |
c58b9523 | 512 | . BFD_SEND (abfd, bfd_putx32, ((val),(ptr))) |
252b5132 | 513 | .#define bfd_put_signed_32 \ |
c58b9523 | 514 | . bfd_put_32 |
252b5132 | 515 | .#define bfd_get_32(abfd, ptr) \ |
c58b9523 | 516 | . BFD_SEND (abfd, bfd_getx32, (ptr)) |
252b5132 | 517 | .#define bfd_get_signed_32(abfd, ptr) \ |
c58b9523 | 518 | . BFD_SEND (abfd, bfd_getx_signed_32, (ptr)) |
252b5132 RH |
519 | . |
520 | .#define bfd_put_64(abfd, val, ptr) \ | |
c58b9523 | 521 | . BFD_SEND (abfd, bfd_putx64, ((val), (ptr))) |
252b5132 | 522 | .#define bfd_put_signed_64 \ |
c58b9523 | 523 | . bfd_put_64 |
252b5132 | 524 | .#define bfd_get_64(abfd, ptr) \ |
c58b9523 | 525 | . BFD_SEND (abfd, bfd_getx64, (ptr)) |
252b5132 | 526 | .#define bfd_get_signed_64(abfd, ptr) \ |
c58b9523 | 527 | . BFD_SEND (abfd, bfd_getx_signed_64, (ptr)) |
252b5132 | 528 | . |
c58b9523 | 529 | .#define bfd_get(bits, abfd, ptr) \ |
199d46be | 530 | . ((bits) == 8 ? bfd_get_8 (abfd, ptr) \ |
c58b9523 AM |
531 | . : (bits) == 16 ? bfd_get_16 (abfd, ptr) \ |
532 | . : (bits) == 32 ? bfd_get_32 (abfd, ptr) \ | |
533 | . : (bits) == 64 ? bfd_get_64 (abfd, ptr) \ | |
534 | . : (abort (), (bfd_vma) - 1)) | |
c7ac6ff8 | 535 | . |
c58b9523 AM |
536 | .#define bfd_put(bits, abfd, val, ptr) \ |
537 | . ((bits) == 8 ? bfd_put_8 (abfd, val, ptr) \ | |
07d6d2b8 AM |
538 | . : (bits) == 16 ? bfd_put_16 (abfd, val, ptr) \ |
539 | . : (bits) == 32 ? bfd_put_32 (abfd, val, ptr) \ | |
540 | . : (bits) == 64 ? bfd_put_64 (abfd, val, ptr) \ | |
c58b9523 | 541 | . : (abort (), (void) 0)) |
c7ac6ff8 | 542 | . |
509945ae | 543 | */ |
252b5132 RH |
544 | |
545 | /* | |
546 | FUNCTION | |
547 | bfd_h_put_size | |
548 | bfd_h_get_size | |
549 | ||
550 | DESCRIPTION | |
551 | These macros have the same function as their <<bfd_get_x>> | |
dc810e39 | 552 | brethren, except that they are used for removing information |
252b5132 RH |
553 | for the header records of object files. Believe it or not, |
554 | some object files keep their header records in big endian | |
555 | order and their data in little endian order. | |
556 | . | |
557 | .{* Byte swapping macros for file header data. *} | |
558 | . | |
559 | .#define bfd_h_put_8(abfd, val, ptr) \ | |
dc810e39 | 560 | . bfd_put_8 (abfd, val, ptr) |
252b5132 | 561 | .#define bfd_h_put_signed_8(abfd, val, ptr) \ |
dc810e39 | 562 | . bfd_put_8 (abfd, val, ptr) |
252b5132 | 563 | .#define bfd_h_get_8(abfd, ptr) \ |
dc810e39 | 564 | . bfd_get_8 (abfd, ptr) |
252b5132 | 565 | .#define bfd_h_get_signed_8(abfd, ptr) \ |
dc810e39 | 566 | . bfd_get_signed_8 (abfd, ptr) |
252b5132 RH |
567 | . |
568 | .#define bfd_h_put_16(abfd, val, ptr) \ | |
dc810e39 | 569 | . BFD_SEND (abfd, bfd_h_putx16, (val, ptr)) |
252b5132 | 570 | .#define bfd_h_put_signed_16 \ |
dc810e39 | 571 | . bfd_h_put_16 |
252b5132 | 572 | .#define bfd_h_get_16(abfd, ptr) \ |
dc810e39 | 573 | . BFD_SEND (abfd, bfd_h_getx16, (ptr)) |
252b5132 | 574 | .#define bfd_h_get_signed_16(abfd, ptr) \ |
dc810e39 | 575 | . BFD_SEND (abfd, bfd_h_getx_signed_16, (ptr)) |
252b5132 RH |
576 | . |
577 | .#define bfd_h_put_32(abfd, val, ptr) \ | |
dc810e39 | 578 | . BFD_SEND (abfd, bfd_h_putx32, (val, ptr)) |
252b5132 | 579 | .#define bfd_h_put_signed_32 \ |
dc810e39 | 580 | . bfd_h_put_32 |
252b5132 | 581 | .#define bfd_h_get_32(abfd, ptr) \ |
dc810e39 | 582 | . BFD_SEND (abfd, bfd_h_getx32, (ptr)) |
252b5132 | 583 | .#define bfd_h_get_signed_32(abfd, ptr) \ |
dc810e39 | 584 | . BFD_SEND (abfd, bfd_h_getx_signed_32, (ptr)) |
252b5132 RH |
585 | . |
586 | .#define bfd_h_put_64(abfd, val, ptr) \ | |
dc810e39 | 587 | . BFD_SEND (abfd, bfd_h_putx64, (val, ptr)) |
252b5132 | 588 | .#define bfd_h_put_signed_64 \ |
dc810e39 | 589 | . bfd_h_put_64 |
252b5132 | 590 | .#define bfd_h_get_64(abfd, ptr) \ |
dc810e39 | 591 | . BFD_SEND (abfd, bfd_h_getx64, (ptr)) |
252b5132 | 592 | .#define bfd_h_get_signed_64(abfd, ptr) \ |
dc810e39 | 593 | . BFD_SEND (abfd, bfd_h_getx_signed_64, (ptr)) |
252b5132 | 594 | . |
edeb6e24 | 595 | .{* Aliases for the above, which should eventually go away. *} |
dc810e39 | 596 | . |
edeb6e24 AM |
597 | .#define H_PUT_64 bfd_h_put_64 |
598 | .#define H_PUT_32 bfd_h_put_32 | |
599 | .#define H_PUT_16 bfd_h_put_16 | |
600 | .#define H_PUT_8 bfd_h_put_8 | |
601 | .#define H_PUT_S64 bfd_h_put_signed_64 | |
602 | .#define H_PUT_S32 bfd_h_put_signed_32 | |
603 | .#define H_PUT_S16 bfd_h_put_signed_16 | |
604 | .#define H_PUT_S8 bfd_h_put_signed_8 | |
605 | .#define H_GET_64 bfd_h_get_64 | |
606 | .#define H_GET_32 bfd_h_get_32 | |
607 | .#define H_GET_16 bfd_h_get_16 | |
608 | .#define H_GET_8 bfd_h_get_8 | |
609 | .#define H_GET_S64 bfd_h_get_signed_64 | |
610 | .#define H_GET_S32 bfd_h_get_signed_32 | |
611 | .#define H_GET_S16 bfd_h_get_signed_16 | |
612 | .#define H_GET_S8 bfd_h_get_signed_8 | |
dc810e39 AM |
613 | . |
614 | .*/ | |
252b5132 RH |
615 | |
616 | /* Sign extension to bfd_signed_vma. */ | |
65879393 AM |
617 | #define COERCE16(x) (((bfd_vma) (x) ^ 0x8000) - 0x8000) |
618 | #define COERCE32(x) (((bfd_vma) (x) ^ 0x80000000) - 0x80000000) | |
252b5132 | 619 | #define COERCE64(x) \ |
65879393 | 620 | (((bfd_uint64_t) (x) ^ ((bfd_uint64_t) 1 << 63)) - ((bfd_uint64_t) 1 << 63)) |
252b5132 RH |
621 | |
622 | bfd_vma | |
edeb6e24 | 623 | bfd_getb16 (const void *p) |
252b5132 | 624 | { |
a50b1753 | 625 | const bfd_byte *addr = (const bfd_byte *) p; |
252b5132 RH |
626 | return (addr[0] << 8) | addr[1]; |
627 | } | |
628 | ||
629 | bfd_vma | |
edeb6e24 | 630 | bfd_getl16 (const void *p) |
252b5132 | 631 | { |
a50b1753 | 632 | const bfd_byte *addr = (const bfd_byte *) p; |
252b5132 RH |
633 | return (addr[1] << 8) | addr[0]; |
634 | } | |
635 | ||
636 | bfd_signed_vma | |
edeb6e24 | 637 | bfd_getb_signed_16 (const void *p) |
252b5132 | 638 | { |
a50b1753 | 639 | const bfd_byte *addr = (const bfd_byte *) p; |
c58b9523 | 640 | return COERCE16 ((addr[0] << 8) | addr[1]); |
252b5132 RH |
641 | } |
642 | ||
643 | bfd_signed_vma | |
edeb6e24 | 644 | bfd_getl_signed_16 (const void *p) |
252b5132 | 645 | { |
a50b1753 | 646 | const bfd_byte *addr = (const bfd_byte *) p; |
c58b9523 | 647 | return COERCE16 ((addr[1] << 8) | addr[0]); |
252b5132 RH |
648 | } |
649 | ||
650 | void | |
edeb6e24 | 651 | bfd_putb16 (bfd_vma data, void *p) |
252b5132 | 652 | { |
a50b1753 | 653 | bfd_byte *addr = (bfd_byte *) p; |
edeb6e24 AM |
654 | addr[0] = (data >> 8) & 0xff; |
655 | addr[1] = data & 0xff; | |
252b5132 RH |
656 | } |
657 | ||
658 | void | |
edeb6e24 | 659 | bfd_putl16 (bfd_vma data, void *p) |
252b5132 | 660 | { |
a50b1753 | 661 | bfd_byte *addr = (bfd_byte *) p; |
edeb6e24 AM |
662 | addr[0] = data & 0xff; |
663 | addr[1] = (data >> 8) & 0xff; | |
252b5132 RH |
664 | } |
665 | ||
7b4ae824 JD |
666 | void |
667 | bfd_putb24 (bfd_vma data, void *p) | |
668 | { | |
669 | bfd_byte *addr = (bfd_byte *) p; | |
670 | addr[0] = (data >> 16) & 0xff; | |
671 | addr[1] = (data >> 8) & 0xff; | |
672 | addr[2] = data & 0xff; | |
673 | } | |
674 | ||
7b4ae824 JD |
675 | void |
676 | bfd_putl24 (bfd_vma data, void *p) | |
677 | { | |
678 | bfd_byte *addr = (bfd_byte *) p; | |
679 | addr[0] = data & 0xff; | |
680 | addr[1] = (data >> 8) & 0xff; | |
681 | addr[2] = (data >> 16) & 0xff; | |
682 | } | |
683 | ||
370e4b50 JD |
684 | bfd_vma |
685 | bfd_getb24 (const void *p) | |
686 | { | |
687 | const bfd_byte *addr = (const bfd_byte *) p; | |
688 | unsigned long v; | |
689 | ||
690 | v = (unsigned long) addr[0] << 16; | |
691 | v |= (unsigned long) addr[1] << 8; | |
692 | v |= (unsigned long) addr[2]; | |
693 | return v; | |
694 | } | |
695 | ||
696 | bfd_vma | |
697 | bfd_getl24 (const void *p) | |
698 | { | |
699 | const bfd_byte *addr = (const bfd_byte *) p; | |
700 | unsigned long v; | |
701 | ||
702 | v = (unsigned long) addr[0]; | |
703 | v |= (unsigned long) addr[1] << 8; | |
704 | v |= (unsigned long) addr[2] << 16; | |
705 | return v; | |
706 | } | |
7b4ae824 | 707 | |
252b5132 | 708 | bfd_vma |
edeb6e24 | 709 | bfd_getb32 (const void *p) |
252b5132 | 710 | { |
a50b1753 | 711 | const bfd_byte *addr = (const bfd_byte *) p; |
252b5132 RH |
712 | unsigned long v; |
713 | ||
714 | v = (unsigned long) addr[0] << 24; | |
715 | v |= (unsigned long) addr[1] << 16; | |
716 | v |= (unsigned long) addr[2] << 8; | |
717 | v |= (unsigned long) addr[3]; | |
c58b9523 | 718 | return v; |
252b5132 RH |
719 | } |
720 | ||
721 | bfd_vma | |
edeb6e24 | 722 | bfd_getl32 (const void *p) |
252b5132 | 723 | { |
a50b1753 | 724 | const bfd_byte *addr = (const bfd_byte *) p; |
252b5132 RH |
725 | unsigned long v; |
726 | ||
727 | v = (unsigned long) addr[0]; | |
728 | v |= (unsigned long) addr[1] << 8; | |
729 | v |= (unsigned long) addr[2] << 16; | |
730 | v |= (unsigned long) addr[3] << 24; | |
c58b9523 | 731 | return v; |
252b5132 RH |
732 | } |
733 | ||
734 | bfd_signed_vma | |
edeb6e24 | 735 | bfd_getb_signed_32 (const void *p) |
252b5132 | 736 | { |
a50b1753 | 737 | const bfd_byte *addr = (const bfd_byte *) p; |
252b5132 RH |
738 | unsigned long v; |
739 | ||
740 | v = (unsigned long) addr[0] << 24; | |
741 | v |= (unsigned long) addr[1] << 16; | |
742 | v |= (unsigned long) addr[2] << 8; | |
743 | v |= (unsigned long) addr[3]; | |
744 | return COERCE32 (v); | |
745 | } | |
746 | ||
747 | bfd_signed_vma | |
edeb6e24 | 748 | bfd_getl_signed_32 (const void *p) |
252b5132 | 749 | { |
a50b1753 | 750 | const bfd_byte *addr = (const bfd_byte *) p; |
252b5132 RH |
751 | unsigned long v; |
752 | ||
753 | v = (unsigned long) addr[0]; | |
754 | v |= (unsigned long) addr[1] << 8; | |
755 | v |= (unsigned long) addr[2] << 16; | |
756 | v |= (unsigned long) addr[3] << 24; | |
757 | return COERCE32 (v); | |
758 | } | |
759 | ||
8ce8c090 | 760 | bfd_uint64_t |
edeb6e24 | 761 | bfd_getb64 (const void *p ATTRIBUTE_UNUSED) |
252b5132 | 762 | { |
8ce8c090 | 763 | #ifdef BFD_HOST_64_BIT |
a50b1753 | 764 | const bfd_byte *addr = (const bfd_byte *) p; |
8ce8c090 | 765 | bfd_uint64_t v; |
c58b9523 AM |
766 | |
767 | v = addr[0]; v <<= 8; | |
768 | v |= addr[1]; v <<= 8; | |
769 | v |= addr[2]; v <<= 8; | |
770 | v |= addr[3]; v <<= 8; | |
771 | v |= addr[4]; v <<= 8; | |
772 | v |= addr[5]; v <<= 8; | |
773 | v |= addr[6]; v <<= 8; | |
774 | v |= addr[7]; | |
775 | ||
776 | return v; | |
252b5132 RH |
777 | #else |
778 | BFD_FAIL(); | |
779 | return 0; | |
780 | #endif | |
781 | } | |
782 | ||
8ce8c090 | 783 | bfd_uint64_t |
edeb6e24 | 784 | bfd_getl64 (const void *p ATTRIBUTE_UNUSED) |
252b5132 | 785 | { |
8ce8c090 | 786 | #ifdef BFD_HOST_64_BIT |
a50b1753 | 787 | const bfd_byte *addr = (const bfd_byte *) p; |
8ce8c090 | 788 | bfd_uint64_t v; |
c58b9523 AM |
789 | |
790 | v = addr[7]; v <<= 8; | |
791 | v |= addr[6]; v <<= 8; | |
792 | v |= addr[5]; v <<= 8; | |
793 | v |= addr[4]; v <<= 8; | |
794 | v |= addr[3]; v <<= 8; | |
795 | v |= addr[2]; v <<= 8; | |
796 | v |= addr[1]; v <<= 8; | |
797 | v |= addr[0]; | |
798 | ||
799 | return v; | |
252b5132 RH |
800 | #else |
801 | BFD_FAIL(); | |
802 | return 0; | |
803 | #endif | |
804 | ||
805 | } | |
806 | ||
8ce8c090 | 807 | bfd_int64_t |
edeb6e24 | 808 | bfd_getb_signed_64 (const void *p ATTRIBUTE_UNUSED) |
252b5132 | 809 | { |
8ce8c090 | 810 | #ifdef BFD_HOST_64_BIT |
a50b1753 | 811 | const bfd_byte *addr = (const bfd_byte *) p; |
8ce8c090 | 812 | bfd_uint64_t v; |
c58b9523 AM |
813 | |
814 | v = addr[0]; v <<= 8; | |
815 | v |= addr[1]; v <<= 8; | |
816 | v |= addr[2]; v <<= 8; | |
817 | v |= addr[3]; v <<= 8; | |
818 | v |= addr[4]; v <<= 8; | |
819 | v |= addr[5]; v <<= 8; | |
820 | v |= addr[6]; v <<= 8; | |
821 | v |= addr[7]; | |
822 | ||
823 | return COERCE64 (v); | |
252b5132 RH |
824 | #else |
825 | BFD_FAIL(); | |
826 | return 0; | |
827 | #endif | |
828 | } | |
829 | ||
8ce8c090 | 830 | bfd_int64_t |
edeb6e24 | 831 | bfd_getl_signed_64 (const void *p ATTRIBUTE_UNUSED) |
252b5132 | 832 | { |
8ce8c090 | 833 | #ifdef BFD_HOST_64_BIT |
a50b1753 | 834 | const bfd_byte *addr = (const bfd_byte *) p; |
8ce8c090 | 835 | bfd_uint64_t v; |
c58b9523 AM |
836 | |
837 | v = addr[7]; v <<= 8; | |
838 | v |= addr[6]; v <<= 8; | |
839 | v |= addr[5]; v <<= 8; | |
840 | v |= addr[4]; v <<= 8; | |
841 | v |= addr[3]; v <<= 8; | |
842 | v |= addr[2]; v <<= 8; | |
843 | v |= addr[1]; v <<= 8; | |
844 | v |= addr[0]; | |
845 | ||
846 | return COERCE64 (v); | |
252b5132 RH |
847 | #else |
848 | BFD_FAIL(); | |
849 | return 0; | |
850 | #endif | |
851 | } | |
852 | ||
853 | void | |
edeb6e24 | 854 | bfd_putb32 (bfd_vma data, void *p) |
252b5132 | 855 | { |
a50b1753 | 856 | bfd_byte *addr = (bfd_byte *) p; |
edeb6e24 AM |
857 | addr[0] = (data >> 24) & 0xff; |
858 | addr[1] = (data >> 16) & 0xff; | |
859 | addr[2] = (data >> 8) & 0xff; | |
860 | addr[3] = data & 0xff; | |
252b5132 RH |
861 | } |
862 | ||
863 | void | |
edeb6e24 | 864 | bfd_putl32 (bfd_vma data, void *p) |
252b5132 | 865 | { |
a50b1753 | 866 | bfd_byte *addr = (bfd_byte *) p; |
edeb6e24 AM |
867 | addr[0] = data & 0xff; |
868 | addr[1] = (data >> 8) & 0xff; | |
869 | addr[2] = (data >> 16) & 0xff; | |
870 | addr[3] = (data >> 24) & 0xff; | |
252b5132 RH |
871 | } |
872 | ||
873 | void | |
8ce8c090 | 874 | bfd_putb64 (bfd_uint64_t data ATTRIBUTE_UNUSED, void *p ATTRIBUTE_UNUSED) |
252b5132 | 875 | { |
8ce8c090 | 876 | #ifdef BFD_HOST_64_BIT |
a50b1753 | 877 | bfd_byte *addr = (bfd_byte *) p; |
edeb6e24 AM |
878 | addr[0] = (data >> (7*8)) & 0xff; |
879 | addr[1] = (data >> (6*8)) & 0xff; | |
880 | addr[2] = (data >> (5*8)) & 0xff; | |
881 | addr[3] = (data >> (4*8)) & 0xff; | |
882 | addr[4] = (data >> (3*8)) & 0xff; | |
883 | addr[5] = (data >> (2*8)) & 0xff; | |
884 | addr[6] = (data >> (1*8)) & 0xff; | |
885 | addr[7] = (data >> (0*8)) & 0xff; | |
252b5132 RH |
886 | #else |
887 | BFD_FAIL(); | |
888 | #endif | |
889 | } | |
890 | ||
891 | void | |
8ce8c090 | 892 | bfd_putl64 (bfd_uint64_t data ATTRIBUTE_UNUSED, void *p ATTRIBUTE_UNUSED) |
252b5132 | 893 | { |
8ce8c090 | 894 | #ifdef BFD_HOST_64_BIT |
a50b1753 | 895 | bfd_byte *addr = (bfd_byte *) p; |
edeb6e24 AM |
896 | addr[7] = (data >> (7*8)) & 0xff; |
897 | addr[6] = (data >> (6*8)) & 0xff; | |
898 | addr[5] = (data >> (5*8)) & 0xff; | |
899 | addr[4] = (data >> (4*8)) & 0xff; | |
900 | addr[3] = (data >> (3*8)) & 0xff; | |
901 | addr[2] = (data >> (2*8)) & 0xff; | |
902 | addr[1] = (data >> (1*8)) & 0xff; | |
903 | addr[0] = (data >> (0*8)) & 0xff; | |
252b5132 RH |
904 | #else |
905 | BFD_FAIL(); | |
906 | #endif | |
907 | } | |
8c603c85 NC |
908 | |
909 | void | |
0a1b45a2 | 910 | bfd_put_bits (bfd_uint64_t data, void *p, int bits, bool big_p) |
8c603c85 | 911 | { |
a50b1753 | 912 | bfd_byte *addr = (bfd_byte *) p; |
8c603c85 NC |
913 | int i; |
914 | int bytes; | |
915 | ||
916 | if (bits % 8 != 0) | |
917 | abort (); | |
918 | ||
919 | bytes = bits / 8; | |
920 | for (i = 0; i < bytes; i++) | |
921 | { | |
91d6fa6a | 922 | int addr_index = big_p ? bytes - i - 1 : i; |
8c603c85 | 923 | |
91d6fa6a | 924 | addr[addr_index] = data & 0xff; |
8c603c85 NC |
925 | data >>= 8; |
926 | } | |
927 | } | |
928 | ||
8ce8c090 | 929 | bfd_uint64_t |
0a1b45a2 | 930 | bfd_get_bits (const void *p, int bits, bool big_p) |
8c603c85 | 931 | { |
a50b1753 | 932 | const bfd_byte *addr = (const bfd_byte *) p; |
8ce8c090 | 933 | bfd_uint64_t data; |
8c603c85 NC |
934 | int i; |
935 | int bytes; | |
936 | ||
937 | if (bits % 8 != 0) | |
938 | abort (); | |
939 | ||
940 | data = 0; | |
941 | bytes = bits / 8; | |
942 | for (i = 0; i < bytes; i++) | |
943 | { | |
91d6fa6a | 944 | int addr_index = big_p ? i : bytes - i - 1; |
509945ae | 945 | |
91d6fa6a | 946 | data = (data << 8) | addr[addr_index]; |
8c603c85 NC |
947 | } |
948 | ||
949 | return data; | |
950 | } | |
252b5132 RH |
951 | \f |
952 | /* Default implementation */ | |
953 | ||
0a1b45a2 | 954 | bool |
c58b9523 AM |
955 | _bfd_generic_get_section_contents (bfd *abfd, |
956 | sec_ptr section, | |
957 | void *location, | |
958 | file_ptr offset, | |
959 | bfd_size_type count) | |
252b5132 | 960 | { |
eea6121a | 961 | bfd_size_type sz; |
0bff3f4b | 962 | if (count == 0) |
0a1b45a2 | 963 | return true; |
0bff3f4b | 964 | |
4a114e3e L |
965 | if (section->compress_status != COMPRESS_SECTION_NONE) |
966 | { | |
4eca0228 | 967 | _bfd_error_handler |
695344c0 | 968 | /* xgettext:c-format */ |
871b3ab2 | 969 | (_("%pB: unable to get decompressed section %pA"), |
4a114e3e L |
970 | abfd, section); |
971 | bfd_set_error (bfd_error_invalid_operation); | |
0a1b45a2 | 972 | return false; |
4a114e3e L |
973 | } |
974 | ||
e57278ef AM |
975 | /* We do allow reading of a section after bfd_final_link has |
976 | written the contents out to disk. In that situation, rawsize is | |
977 | just a stale version of size, so ignore it. Otherwise we must be | |
978 | reading an input section, where rawsize, if different to size, | |
979 | is the on-disk size. */ | |
980 | if (abfd->direction != write_direction && section->rawsize != 0) | |
981 | sz = section->rawsize; | |
982 | else | |
983 | sz = section->size; | |
e62071b6 | 984 | if (offset + count < count |
0630b49c | 985 | || offset + count > sz |
328ce951 L |
986 | || (abfd->my_archive != NULL |
987 | && !bfd_is_thin_archive (abfd->my_archive) | |
988 | && ((ufile_ptr) section->filepos + offset + count | |
989 | > arelt_size (abfd)))) | |
0bff3f4b ILT |
990 | { |
991 | bfd_set_error (bfd_error_invalid_operation); | |
0a1b45a2 | 992 | return false; |
0bff3f4b ILT |
993 | } |
994 | ||
995 | if (bfd_seek (abfd, section->filepos + offset, SEEK_SET) != 0 | |
dc810e39 | 996 | || bfd_bread (location, count, abfd) != count) |
0a1b45a2 | 997 | return false; |
0bff3f4b | 998 | |
0a1b45a2 | 999 | return true; |
252b5132 RH |
1000 | } |
1001 | ||
0a1b45a2 | 1002 | bool |
c58b9523 AM |
1003 | _bfd_generic_get_section_contents_in_window |
1004 | (bfd *abfd ATTRIBUTE_UNUSED, | |
1005 | sec_ptr section ATTRIBUTE_UNUSED, | |
1006 | bfd_window *w ATTRIBUTE_UNUSED, | |
1007 | file_ptr offset ATTRIBUTE_UNUSED, | |
1008 | bfd_size_type count ATTRIBUTE_UNUSED) | |
252b5132 RH |
1009 | { |
1010 | #ifdef USE_MMAP | |
eea6121a AM |
1011 | bfd_size_type sz; |
1012 | ||
252b5132 | 1013 | if (count == 0) |
0a1b45a2 | 1014 | return true; |
c58b9523 AM |
1015 | if (abfd->xvec->_bfd_get_section_contents |
1016 | != _bfd_generic_get_section_contents) | |
252b5132 RH |
1017 | { |
1018 | /* We don't know what changes the bfd's get_section_contents | |
1019 | method may have to make. So punt trying to map the file | |
1020 | window, and let get_section_contents do its thing. */ | |
1021 | /* @@ FIXME : If the internal window has a refcount of 1 and was | |
1022 | allocated with malloc instead of mmap, just reuse it. */ | |
1023 | bfd_free_window (w); | |
c58b9523 | 1024 | w->i = bfd_zmalloc (sizeof (bfd_window_internal)); |
252b5132 | 1025 | if (w->i == NULL) |
0a1b45a2 | 1026 | return false; |
c58b9523 | 1027 | w->i->data = bfd_malloc (count); |
252b5132 RH |
1028 | if (w->i->data == NULL) |
1029 | { | |
1030 | free (w->i); | |
1031 | w->i = NULL; | |
0a1b45a2 | 1032 | return false; |
252b5132 RH |
1033 | } |
1034 | w->i->mapped = 0; | |
1035 | w->i->refcount = 1; | |
1036 | w->size = w->i->size = count; | |
1037 | w->data = w->i->data; | |
1038 | return bfd_get_section_contents (abfd, section, w->data, offset, count); | |
1039 | } | |
e57278ef AM |
1040 | if (abfd->direction != write_direction && section->rawsize != 0) |
1041 | sz = section->rawsize; | |
1042 | else | |
1043 | sz = section->size; | |
328ce951 L |
1044 | if (offset + count < count |
1045 | || offset + count > sz | |
1046 | || (abfd->my_archive != NULL | |
1047 | && !bfd_is_thin_archive (abfd->my_archive) | |
1048 | && ((ufile_ptr) section->filepos + offset + count | |
1049 | > arelt_size (abfd))) | |
82e51918 | 1050 | || ! bfd_get_file_window (abfd, section->filepos + offset, count, w, |
0a1b45a2 AM |
1051 | true)) |
1052 | return false; | |
1053 | return true; | |
252b5132 RH |
1054 | #else |
1055 | abort (); | |
1056 | #endif | |
1057 | } | |
1058 | ||
1059 | /* This generic function can only be used in implementations where creating | |
1060 | NEW sections is disallowed. It is useful in patching existing sections | |
1061 | in read-write files, though. See other set_section_contents functions | |
1062 | to see why it doesn't work for new sections. */ | |
0a1b45a2 | 1063 | bool |
c58b9523 AM |
1064 | _bfd_generic_set_section_contents (bfd *abfd, |
1065 | sec_ptr section, | |
0f867abe | 1066 | const void *location, |
c58b9523 AM |
1067 | file_ptr offset, |
1068 | bfd_size_type count) | |
252b5132 RH |
1069 | { |
1070 | if (count == 0) | |
0a1b45a2 | 1071 | return true; |
252b5132 | 1072 | |
dc810e39 AM |
1073 | if (bfd_seek (abfd, section->filepos + offset, SEEK_SET) != 0 |
1074 | || bfd_bwrite (location, count, abfd) != count) | |
0a1b45a2 | 1075 | return false; |
252b5132 | 1076 | |
0a1b45a2 | 1077 | return true; |
252b5132 RH |
1078 | } |
1079 | ||
1080 | /* | |
1081 | INTERNAL_FUNCTION | |
1082 | bfd_log2 | |
1083 | ||
1084 | SYNOPSIS | |
dc810e39 | 1085 | unsigned int bfd_log2 (bfd_vma x); |
252b5132 RH |
1086 | |
1087 | DESCRIPTION | |
1088 | Return the log base 2 of the value supplied, rounded up. E.g., an | |
dc810e39 | 1089 | @var{x} of 1025 returns 11. A @var{x} of 0 returns 0. |
252b5132 RH |
1090 | */ |
1091 | ||
1092 | unsigned int | |
c58b9523 | 1093 | bfd_log2 (bfd_vma x) |
252b5132 RH |
1094 | { |
1095 | unsigned int result = 0; | |
1096 | ||
9e6619e2 AM |
1097 | if (x <= 1) |
1098 | return result; | |
1099 | --x; | |
1100 | do | |
252b5132 | 1101 | ++result; |
9e6619e2 | 1102 | while ((x >>= 1) != 0); |
252b5132 RH |
1103 | return result; |
1104 | } | |
1105 | ||
0a1b45a2 | 1106 | bool |
c58b9523 | 1107 | bfd_generic_is_local_label_name (bfd *abfd, const char *name) |
252b5132 RH |
1108 | { |
1109 | char locals_prefix = (bfd_get_symbol_leading_char (abfd) == '_') ? 'L' : '.'; | |
1110 | ||
b34976b6 | 1111 | return name[0] == locals_prefix; |
252b5132 RH |
1112 | } |
1113 | ||
dc810e39 AM |
1114 | /* Give a warning at runtime if someone compiles code which calls |
1115 | old routines. */ | |
ca09e32b | 1116 | |
dc810e39 | 1117 | void |
8c8402cc PA |
1118 | _bfd_warn_deprecated (const char *what, |
1119 | const char *file, | |
1120 | int line, | |
1121 | const char *func) | |
dc810e39 AM |
1122 | { |
1123 | /* Poor man's tracking of functions we've already warned about. */ | |
1124 | static size_t mask = 0; | |
1125 | ||
1126 | if (~(size_t) func & ~mask) | |
1127 | { | |
4a97a0e5 | 1128 | fflush (stdout); |
73722af0 | 1129 | /* Note: separate sentences in order to allow |
ca09e32b | 1130 | for translation into other languages. */ |
dc810e39 | 1131 | if (func) |
695344c0 | 1132 | /* xgettext:c-format */ |
ca09e32b NC |
1133 | fprintf (stderr, _("Deprecated %s called at %s line %d in %s\n"), |
1134 | what, file, line, func); | |
dc810e39 | 1135 | else |
ca09e32b | 1136 | fprintf (stderr, _("Deprecated %s called\n"), what); |
4a97a0e5 | 1137 | fflush (stderr); |
dc810e39 AM |
1138 | mask |= ~(size_t) func; |
1139 | } | |
1140 | } | |
c0c28ab8 L |
1141 | |
1142 | /* Helper function for reading uleb128 encoded data. */ | |
1143 | ||
1144 | bfd_vma | |
4265548c PA |
1145 | _bfd_read_unsigned_leb128 (bfd *abfd ATTRIBUTE_UNUSED, |
1146 | bfd_byte *buf, | |
1147 | unsigned int *bytes_read_ptr) | |
c0c28ab8 L |
1148 | { |
1149 | bfd_vma result; | |
1150 | unsigned int num_read; | |
f075ee0c | 1151 | unsigned int shift; |
c0c28ab8 L |
1152 | unsigned char byte; |
1153 | ||
1154 | result = 0; | |
1155 | shift = 0; | |
1156 | num_read = 0; | |
1157 | do | |
1158 | { | |
f075ee0c | 1159 | byte = bfd_get_8 (abfd, buf); |
c0c28ab8 L |
1160 | buf++; |
1161 | num_read++; | |
7b54cadd AM |
1162 | if (shift < 8 * sizeof (result)) |
1163 | { | |
1164 | result |= (((bfd_vma) byte & 0x7f) << shift); | |
1165 | shift += 7; | |
1166 | } | |
c0c28ab8 L |
1167 | } |
1168 | while (byte & 0x80); | |
1169 | *bytes_read_ptr = num_read; | |
1170 | return result; | |
1171 | } | |
1172 | ||
f64e188b NC |
1173 | /* Read in a LEB128 encoded value from ABFD starting at DATA. |
1174 | If SIGN is true, return a signed LEB128 value. | |
1175 | If LENGTH_RETURN is not NULL, return in it the number of bytes read. | |
1176 | No bytes will be read at address END or beyond. */ | |
1177 | ||
1178 | bfd_vma | |
4265548c PA |
1179 | _bfd_safe_read_leb128 (bfd *abfd ATTRIBUTE_UNUSED, |
1180 | bfd_byte *data, | |
1181 | unsigned int *length_return, | |
0a1b45a2 | 1182 | bool sign, |
4265548c | 1183 | const bfd_byte * const end) |
f64e188b NC |
1184 | { |
1185 | bfd_vma result = 0; | |
1186 | unsigned int num_read = 0; | |
1187 | unsigned int shift = 0; | |
1188 | unsigned char byte = 0; | |
1189 | ||
1190 | while (data < end) | |
1191 | { | |
1192 | byte = bfd_get_8 (abfd, data); | |
1193 | data++; | |
1194 | num_read++; | |
7b54cadd AM |
1195 | if (shift < 8 * sizeof (result)) |
1196 | { | |
1197 | result |= ((bfd_vma) (byte & 0x7f)) << shift; | |
1198 | shift += 7; | |
1199 | } | |
f64e188b NC |
1200 | if ((byte & 0x80) == 0) |
1201 | break; | |
1202 | } | |
1203 | ||
1204 | if (length_return != NULL) | |
1205 | *length_return = num_read; | |
1206 | ||
1207 | if (sign && (shift < 8 * sizeof (result)) && (byte & 0x40)) | |
29f628db | 1208 | result |= -((bfd_vma) 1 << shift); |
f64e188b NC |
1209 | |
1210 | return result; | |
1211 | } | |
1212 | ||
c0c28ab8 L |
1213 | /* Helper function for reading sleb128 encoded data. */ |
1214 | ||
1215 | bfd_signed_vma | |
4265548c PA |
1216 | _bfd_read_signed_leb128 (bfd *abfd ATTRIBUTE_UNUSED, |
1217 | bfd_byte *buf, | |
1218 | unsigned int *bytes_read_ptr) | |
c0c28ab8 L |
1219 | { |
1220 | bfd_vma result; | |
f075ee0c AM |
1221 | unsigned int shift; |
1222 | unsigned int num_read; | |
c0c28ab8 L |
1223 | unsigned char byte; |
1224 | ||
1225 | result = 0; | |
1226 | shift = 0; | |
1227 | num_read = 0; | |
1228 | do | |
1229 | { | |
f075ee0c | 1230 | byte = bfd_get_8 (abfd, buf); |
c0c28ab8 L |
1231 | buf ++; |
1232 | num_read ++; | |
7b54cadd AM |
1233 | if (shift < 8 * sizeof (result)) |
1234 | { | |
1235 | result |= (((bfd_vma) byte & 0x7f) << shift); | |
1236 | shift += 7; | |
1237 | } | |
c0c28ab8 L |
1238 | } |
1239 | while (byte & 0x80); | |
f075ee0c | 1240 | if (shift < 8 * sizeof (result) && (byte & 0x40)) |
c0c28ab8 L |
1241 | result |= (((bfd_vma) -1) << shift); |
1242 | *bytes_read_ptr = num_read; | |
1243 | return result; | |
1244 | } | |
5420f73d | 1245 | |
7d81bc93 JL |
1246 | /* Write VAL in uleb128 format to P. |
1247 | END indicates the last byte of allocated space for the uleb128 value to fit | |
1248 | in. | |
1249 | Return a pointer to the byte following the last byte that was written, or | |
1250 | NULL if the uleb128 value does not fit in the allocated space between P and | |
1251 | END. */ | |
1252 | bfd_byte * | |
1253 | _bfd_write_unsigned_leb128 (bfd_byte *p, bfd_byte *end, bfd_vma val) | |
1254 | { | |
1255 | bfd_byte c; | |
1256 | do | |
1257 | { | |
1258 | if (p > end) | |
1259 | return NULL; | |
1260 | c = val & 0x7f; | |
1261 | val >>= 7; | |
1262 | if (val) | |
1263 | c |= 0x80; | |
1264 | *(p++) = c; | |
1265 | } | |
1266 | while (val); | |
1267 | return p; | |
1268 | } | |
1269 | ||
0a1b45a2 | 1270 | bool |
ccd2ec6a L |
1271 | _bfd_generic_init_private_section_data (bfd *ibfd ATTRIBUTE_UNUSED, |
1272 | asection *isec ATTRIBUTE_UNUSED, | |
1273 | bfd *obfd ATTRIBUTE_UNUSED, | |
1274 | asection *osec ATTRIBUTE_UNUSED, | |
1275 | struct bfd_link_info *link_info ATTRIBUTE_UNUSED) | |
1276 | { | |
0a1b45a2 | 1277 | return true; |
ccd2ec6a | 1278 | } |