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0acf065b | 1 | /* Compressed section support (intended for debug sections). |
b90efa5b | 2 | Copyright (C) 2008-2015 Free Software Foundation, Inc. |
1b315056 CS |
3 | |
4 | This file is part of BFD, the Binary File Descriptor library. | |
5 | ||
6 | This program is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 3 of the License, or | |
9 | (at your option) any later version. | |
10 | ||
11 | This program is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with this program; if not, write to the Free Software | |
18 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, | |
19 | MA 02110-1301, USA. */ | |
20 | ||
1b315056 | 21 | #include "sysdep.h" |
243340ad | 22 | #include <zlib.h> |
1b315056 CS |
23 | #include "bfd.h" |
24 | #include "libbfd.h" | |
a953eec9 | 25 | #include "safe-ctype.h" |
1b315056 | 26 | |
151411f8 L |
27 | #define MAX_COMPRESSION_HEADER_SIZE 24 |
28 | ||
4a114e3e L |
29 | static bfd_boolean |
30 | decompress_contents (bfd_byte *compressed_buffer, | |
31 | bfd_size_type compressed_size, | |
32 | bfd_byte *uncompressed_buffer, | |
33 | bfd_size_type uncompressed_size) | |
34 | { | |
35 | z_stream strm; | |
36 | int rc; | |
37 | ||
38 | /* It is possible the section consists of several compressed | |
39 | buffers concatenated together, so we uncompress in a loop. */ | |
40 | strm.zalloc = NULL; | |
41 | strm.zfree = NULL; | |
42 | strm.opaque = NULL; | |
43 | strm.avail_in = compressed_size - 12; | |
44 | strm.next_in = (Bytef*) compressed_buffer + 12; | |
45 | strm.avail_out = uncompressed_size; | |
46 | ||
a253d456 | 47 | BFD_ASSERT (Z_OK == 0); |
4a114e3e | 48 | rc = inflateInit (&strm); |
a29a8af8 | 49 | while (strm.avail_in > 0 && strm.avail_out > 0) |
4a114e3e L |
50 | { |
51 | if (rc != Z_OK) | |
a253d456 | 52 | break; |
4a114e3e L |
53 | strm.next_out = ((Bytef*) uncompressed_buffer |
54 | + (uncompressed_size - strm.avail_out)); | |
55 | rc = inflate (&strm, Z_FINISH); | |
56 | if (rc != Z_STREAM_END) | |
a253d456 | 57 | break; |
4a114e3e L |
58 | rc = inflateReset (&strm); |
59 | } | |
a253d456 | 60 | rc |= inflateEnd (&strm); |
82c6068a | 61 | return rc == Z_OK && strm.avail_out == 0; |
4a114e3e | 62 | } |
4a114e3e | 63 | |
0b0732e1 L |
64 | /* Compress data of the size specified in @var{uncompressed_size} |
65 | and pointed to by @var{uncompressed_buffer} using zlib and store | |
66 | as the contents field. This function assumes the contents | |
67 | field was allocated using bfd_malloc() or equivalent. If zlib | |
68 | is not installed on this machine, the input is unmodified. | |
1b315056 | 69 | |
151411f8 L |
70 | Return the uncompressed size if the full section contents is |
71 | compressed successfully. Otherwise return 0. */ | |
1b315056 | 72 | |
151411f8 L |
73 | static bfd_size_type |
74 | bfd_compress_section_contents (bfd *abfd, sec_ptr sec, | |
243340ad L |
75 | bfd_byte *uncompressed_buffer, |
76 | bfd_size_type uncompressed_size) | |
1b315056 | 77 | { |
ae6a0217 | 78 | uLong compressed_size; |
151411f8 L |
79 | bfd_byte *buffer; |
80 | bfd_size_type buffer_size; | |
81 | bfd_boolean decompress; | |
51509926 L |
82 | #if defined(__GNUC__) && GCC_VERSION < 4007 |
83 | /* Work around a GCC uninitialized warning bug fixed in GCC 4.7. */ | |
84 | int zlib_size = 0; | |
85 | #else | |
151411f8 | 86 | int zlib_size; |
51509926 | 87 | #endif |
151411f8 L |
88 | int orig_compression_header_size; |
89 | int compression_header_size | |
90 | = bfd_get_compression_header_size (abfd, NULL); | |
91 | bfd_boolean compressed | |
92 | = bfd_is_section_compressed_with_header (abfd, sec, | |
93 | &orig_compression_header_size); | |
94 | ||
95 | if (compressed) | |
96 | { | |
97 | /* We shouldn't decompress unsupported compressed section. */ | |
98 | if (orig_compression_header_size < 0) | |
99 | abort (); | |
4a114e3e | 100 | |
151411f8 L |
101 | /* Different compression schemes. Just move the compressed section |
102 | contents to the right position. */ | |
103 | if (orig_compression_header_size == 0) | |
104 | { | |
105 | /* Convert it from .zdebug* section. Get the uncompressed | |
106 | size first. */ | |
107 | zlib_size = uncompressed_size; | |
108 | compressed_size = zlib_size + compression_header_size; | |
109 | uncompressed_size = bfd_getb64 (uncompressed_buffer + 4); | |
110 | } | |
111 | else | |
112 | { | |
113 | /* Convert it to .zdebug* section. */ | |
114 | zlib_size = uncompressed_size - orig_compression_header_size; | |
115 | compressed_size = zlib_size; | |
116 | } | |
117 | } | |
118 | else | |
119 | compressed_size = compressBound (uncompressed_size) + 12; | |
4281caad | 120 | |
151411f8 L |
121 | /* When converting from .zdebug* section, uncompress if it leads to |
122 | smaller size. */ | |
123 | if (compressed | |
124 | && orig_compression_header_size == 0 | |
125 | && compressed_size > uncompressed_size) | |
4a114e3e | 126 | { |
151411f8 L |
127 | decompress = TRUE; |
128 | buffer_size = uncompressed_size; | |
4a114e3e | 129 | } |
151411f8 L |
130 | else |
131 | { | |
132 | decompress = FALSE; | |
133 | buffer_size = compressed_size + compression_header_size; | |
134 | } | |
135 | buffer = (bfd_byte *) bfd_malloc (buffer_size); | |
136 | if (buffer == NULL) | |
137 | return 0; | |
4a114e3e | 138 | |
151411f8 | 139 | if (compressed) |
8d001214 | 140 | { |
151411f8 L |
141 | sec->size = uncompressed_size; |
142 | if (decompress) | |
143 | { | |
144 | if (!decompress_contents (uncompressed_buffer, zlib_size, | |
145 | buffer, uncompressed_size)) | |
146 | { | |
147 | bfd_set_error (bfd_error_bad_value); | |
148 | free (buffer); | |
149 | return 0; | |
150 | } | |
151 | free (uncompressed_buffer); | |
152 | sec->contents = buffer; | |
153 | sec->compress_status = COMPRESS_SECTION_DONE; | |
154 | return uncompressed_size; | |
155 | } | |
156 | else | |
157 | { | |
158 | bfd_update_compression_header (abfd, buffer, sec); | |
159 | memmove (buffer + compression_header_size, | |
160 | uncompressed_buffer + orig_compression_header_size, | |
161 | zlib_size); | |
162 | } | |
8d001214 L |
163 | } |
164 | else | |
165 | { | |
151411f8 L |
166 | bfd_size_type size = uncompressed_size; |
167 | int header_size = 12 + compression_header_size; | |
168 | if (compress ((Bytef*) buffer + header_size, | |
169 | &compressed_size, | |
170 | (const Bytef*) uncompressed_buffer, | |
171 | uncompressed_size) != Z_OK) | |
172 | { | |
173 | free (buffer); | |
174 | bfd_set_error (bfd_error_bad_value); | |
175 | return 0; | |
176 | } | |
177 | ||
178 | compressed_size += header_size; | |
179 | /* PR binutils/18087: If compression didn't make the section smaller, | |
180 | just keep it uncompressed. */ | |
181 | if (compressed_size < uncompressed_size) | |
182 | { | |
183 | bfd_update_compression_header (abfd, buffer, sec); | |
184 | ||
185 | /* Write the zlib header. In this case, it should be "ZLIB" | |
186 | followed by the uncompressed section size, 8 bytes in | |
187 | big-endian order. */ | |
188 | memcpy (buffer + compression_header_size, "ZLIB", 4); | |
189 | bfd_putb64 (size, buffer + compression_header_size + 4); | |
190 | } | |
191 | else | |
192 | { | |
193 | sec->contents = uncompressed_buffer; | |
194 | sec->compress_status = COMPRESS_SECTION_NONE; | |
195 | return uncompressed_size; | |
196 | } | |
8d001214 | 197 | } |
4a114e3e | 198 | |
151411f8 L |
199 | free (uncompressed_buffer); |
200 | sec->contents = buffer; | |
201 | sec->size = compressed_size; | |
202 | sec->compress_status = COMPRESS_SECTION_DONE; | |
203 | ||
204 | return uncompressed_size; | |
4a114e3e L |
205 | } |
206 | ||
207 | /* | |
208 | FUNCTION | |
209 | bfd_get_full_section_contents | |
210 | ||
211 | SYNOPSIS | |
212 | bfd_boolean bfd_get_full_section_contents | |
213 | (bfd *abfd, asection *section, bfd_byte **ptr); | |
214 | ||
215 | DESCRIPTION | |
216 | Read all data from @var{section} in BFD @var{abfd}, decompress | |
217 | if needed, and store in @var{*ptr}. If @var{*ptr} is NULL, | |
68ffbac6 | 218 | return @var{*ptr} with memory malloc'd by this function. |
4a114e3e L |
219 | |
220 | Return @code{TRUE} if the full section contents is retrieved | |
06614111 NC |
221 | successfully. If the section has no contents then this function |
222 | returns @code{TRUE} but @var{*ptr} is set to NULL. | |
4a114e3e L |
223 | */ |
224 | ||
225 | bfd_boolean | |
226 | bfd_get_full_section_contents (bfd *abfd, sec_ptr sec, bfd_byte **ptr) | |
227 | { | |
e57278ef | 228 | bfd_size_type sz; |
4a114e3e | 229 | bfd_byte *p = *ptr; |
82c6068a | 230 | bfd_boolean ret; |
38b774d2 AM |
231 | bfd_size_type save_size; |
232 | bfd_size_type save_rawsize; | |
4a114e3e | 233 | bfd_byte *compressed_buffer; |
151411f8 | 234 | unsigned int compression_header_size; |
4a114e3e | 235 | |
e57278ef AM |
236 | if (abfd->direction != write_direction && sec->rawsize != 0) |
237 | sz = sec->rawsize; | |
238 | else | |
239 | sz = sec->size; | |
4a114e3e | 240 | if (sz == 0) |
06614111 NC |
241 | { |
242 | *ptr = NULL; | |
243 | return TRUE; | |
244 | } | |
4a114e3e L |
245 | |
246 | switch (sec->compress_status) | |
247 | { | |
248 | case COMPRESS_SECTION_NONE: | |
249 | if (p == NULL) | |
250 | { | |
0d13c96b | 251 | p = (bfd_byte *) bfd_malloc (sz); |
4a114e3e L |
252 | if (p == NULL) |
253 | return FALSE; | |
4a114e3e | 254 | } |
06614111 | 255 | |
82c6068a AM |
256 | if (!bfd_get_section_contents (abfd, sec, p, 0, sz)) |
257 | { | |
258 | if (*ptr != p) | |
259 | free (p); | |
260 | return FALSE; | |
261 | } | |
262 | *ptr = p; | |
4a114e3e L |
263 | return TRUE; |
264 | ||
265 | case DECOMPRESS_SECTION_SIZED: | |
82c6068a | 266 | /* Read in the full compressed section contents. */ |
38b774d2 | 267 | compressed_buffer = (bfd_byte *) bfd_malloc (sec->compressed_size); |
82c6068a AM |
268 | if (compressed_buffer == NULL) |
269 | return FALSE; | |
38b774d2 AM |
270 | save_rawsize = sec->rawsize; |
271 | save_size = sec->size; | |
82c6068a AM |
272 | /* Clear rawsize, set size to compressed size and set compress_status |
273 | to COMPRESS_SECTION_NONE. If the compressed size is bigger than | |
274 | the uncompressed size, bfd_get_section_contents will fail. */ | |
275 | sec->rawsize = 0; | |
38b774d2 | 276 | sec->size = sec->compressed_size; |
82c6068a AM |
277 | sec->compress_status = COMPRESS_SECTION_NONE; |
278 | ret = bfd_get_section_contents (abfd, sec, compressed_buffer, | |
38b774d2 | 279 | 0, sec->compressed_size); |
82c6068a | 280 | /* Restore rawsize and size. */ |
38b774d2 AM |
281 | sec->rawsize = save_rawsize; |
282 | sec->size = save_size; | |
4a114e3e | 283 | sec->compress_status = DECOMPRESS_SECTION_SIZED; |
82c6068a AM |
284 | if (!ret) |
285 | goto fail_compressed; | |
4a114e3e | 286 | |
38b774d2 AM |
287 | if (p == NULL) |
288 | p = (bfd_byte *) bfd_malloc (sz); | |
289 | if (p == NULL) | |
4a114e3e | 290 | goto fail_compressed; |
4a114e3e | 291 | |
151411f8 L |
292 | compression_header_size = bfd_get_compression_header_size (abfd, sec); |
293 | if (!decompress_contents (compressed_buffer + compression_header_size, | |
294 | sec->compressed_size, p, sz)) | |
82c6068a AM |
295 | { |
296 | bfd_set_error (bfd_error_bad_value); | |
38b774d2 AM |
297 | if (p != *ptr) |
298 | free (p); | |
82c6068a AM |
299 | fail_compressed: |
300 | free (compressed_buffer); | |
301 | return FALSE; | |
302 | } | |
4a114e3e | 303 | |
82c6068a | 304 | free (compressed_buffer); |
38b774d2 AM |
305 | *ptr = p; |
306 | return TRUE; | |
4a114e3e | 307 | |
82c6068a | 308 | case COMPRESS_SECTION_DONE: |
db6b071a NC |
309 | if (sec->contents == NULL) |
310 | return FALSE; | |
82c6068a AM |
311 | if (p == NULL) |
312 | { | |
313 | p = (bfd_byte *) bfd_malloc (sz); | |
314 | if (p == NULL) | |
315 | return FALSE; | |
316 | *ptr = p; | |
317 | } | |
06614111 NC |
318 | /* PR 17512; file: 5bc29788. */ |
319 | if (p != sec->contents) | |
320 | memcpy (p, sec->contents, sz); | |
82c6068a | 321 | return TRUE; |
4a114e3e | 322 | |
82c6068a AM |
323 | default: |
324 | abort (); | |
325 | } | |
4a114e3e L |
326 | } |
327 | ||
8a72cc6e AM |
328 | /* |
329 | FUNCTION | |
330 | bfd_cache_section_contents | |
331 | ||
332 | SYNOPSIS | |
333 | void bfd_cache_section_contents | |
334 | (asection *sec, void *contents); | |
335 | ||
336 | DESCRIPTION | |
337 | Stash @var(contents) so any following reads of @var(sec) do | |
338 | not need to decompress again. | |
339 | */ | |
340 | ||
341 | void | |
342 | bfd_cache_section_contents (asection *sec, void *contents) | |
343 | { | |
344 | if (sec->compress_status == DECOMPRESS_SECTION_SIZED) | |
345 | sec->compress_status = COMPRESS_SECTION_DONE; | |
346 | sec->contents = contents; | |
347 | sec->flags |= SEC_IN_MEMORY; | |
348 | } | |
349 | ||
4a114e3e L |
350 | /* |
351 | FUNCTION | |
151411f8 | 352 | bfd_is_section_compressed_with_header |
4a114e3e L |
353 | |
354 | SYNOPSIS | |
151411f8 L |
355 | bfd_boolean bfd_is_section_compressed_with_header |
356 | (bfd *abfd, asection *section, | |
357 | int *compression_header_size_p); | |
4a114e3e L |
358 | |
359 | DESCRIPTION | |
151411f8 L |
360 | Return @code{TRUE} if @var{section} is compressed. Compression |
361 | header size is returned in @var{compression_header_size_p}. If | |
362 | compression is unsupported, compression header size is returned | |
363 | with -1. | |
4a114e3e L |
364 | */ |
365 | ||
366 | bfd_boolean | |
151411f8 L |
367 | bfd_is_section_compressed_with_header (bfd *abfd, sec_ptr sec, |
368 | int *compression_header_size_p) | |
4a114e3e | 369 | { |
151411f8 L |
370 | bfd_byte header[MAX_COMPRESSION_HEADER_SIZE + 12]; |
371 | int compression_header_size; | |
372 | int header_size = 12; | |
64f40162 L |
373 | unsigned int saved = sec->compress_status; |
374 | bfd_boolean compressed; | |
375 | ||
151411f8 L |
376 | compression_header_size = bfd_get_compression_header_size (abfd, sec); |
377 | if (compression_header_size > MAX_COMPRESSION_HEADER_SIZE) | |
378 | abort (); | |
379 | header_size += compression_header_size; | |
380 | ||
64f40162 L |
381 | /* Don't decompress the section. */ |
382 | sec->compress_status = COMPRESS_SECTION_NONE; | |
4a114e3e L |
383 | |
384 | /* Read the zlib header. In this case, it should be "ZLIB" followed | |
385 | by the uncompressed section size, 8 bytes in big-endian order. */ | |
151411f8 L |
386 | compressed = bfd_get_section_contents (abfd, sec, header, 0, |
387 | header_size) | |
388 | && CONST_STRNEQ ((char*) header + compression_header_size, | |
389 | "ZLIB"); | |
64f40162 | 390 | |
151411f8 L |
391 | if (compressed) |
392 | { | |
393 | if (compression_header_size != 0) | |
394 | { | |
395 | bfd_size_type uncompressed_size | |
396 | = bfd_getb64 ((bfd_byte *) header | |
397 | + compression_header_size + 4); | |
398 | if (!bfd_check_compression_header (abfd, header, sec, | |
399 | uncompressed_size)) | |
400 | compression_header_size = -1; | |
401 | } | |
402 | /* Check for the pathalogical case of a debug string section that | |
403 | contains the string ZLIB.... as the first entry. We assume that | |
404 | no uncompressed .debug_str section would ever be big enough to | |
405 | have the first byte of its (big-endian) size be non-zero. */ | |
406 | else if (strcmp (sec->name, ".debug_str") == 0 | |
407 | && ISPRINT (header[compression_header_size + 4])) | |
408 | compressed = FALSE; | |
409 | } | |
a953eec9 | 410 | |
64f40162 L |
411 | /* Restore compress_status. */ |
412 | sec->compress_status = saved; | |
151411f8 | 413 | *compression_header_size_p = compression_header_size; |
64f40162 | 414 | return compressed; |
4a114e3e L |
415 | } |
416 | ||
151411f8 L |
417 | /* |
418 | FUNCTION | |
419 | bfd_is_section_compressed | |
420 | ||
421 | SYNOPSIS | |
422 | bfd_boolean bfd_is_section_compressed | |
423 | (bfd *abfd, asection *section); | |
424 | ||
425 | DESCRIPTION | |
426 | Return @code{TRUE} if @var{section} is compressed. | |
427 | */ | |
428 | ||
429 | bfd_boolean | |
430 | bfd_is_section_compressed (bfd *abfd, sec_ptr sec) | |
431 | { | |
432 | int compression_header_size; | |
433 | return (bfd_is_section_compressed_with_header (abfd, sec, | |
434 | &compression_header_size) | |
435 | && compression_header_size >= 0); | |
436 | } | |
437 | ||
4a114e3e L |
438 | /* |
439 | FUNCTION | |
440 | bfd_init_section_decompress_status | |
441 | ||
442 | SYNOPSIS | |
443 | bfd_boolean bfd_init_section_decompress_status | |
444 | (bfd *abfd, asection *section); | |
445 | ||
446 | DESCRIPTION | |
447 | Record compressed section size, update section size with | |
448 | decompressed size and set compress_status to | |
449 | DECOMPRESS_SECTION_SIZED. | |
450 | ||
451 | Return @code{FALSE} if the section is not a valid compressed | |
452 | section or zlib is not installed on this machine. Otherwise, | |
453 | return @code{TRUE}. | |
454 | */ | |
455 | ||
456 | bfd_boolean | |
243340ad | 457 | bfd_init_section_decompress_status (bfd *abfd, sec_ptr sec) |
4a114e3e | 458 | { |
151411f8 L |
459 | bfd_byte header[MAX_COMPRESSION_HEADER_SIZE + 12]; |
460 | int compression_header_size; | |
461 | int header_size = 12; | |
4a114e3e L |
462 | bfd_size_type uncompressed_size; |
463 | ||
151411f8 L |
464 | compression_header_size = bfd_get_compression_header_size (abfd, sec); |
465 | if (compression_header_size > MAX_COMPRESSION_HEADER_SIZE) | |
466 | abort (); | |
467 | header_size += compression_header_size; | |
468 | ||
4a114e3e L |
469 | if (sec->rawsize != 0 |
470 | || sec->contents != NULL | |
471 | || sec->compress_status != COMPRESS_SECTION_NONE | |
151411f8 | 472 | || !bfd_get_section_contents (abfd, sec, header, 0, header_size)) |
4a114e3e L |
473 | { |
474 | bfd_set_error (bfd_error_invalid_operation); | |
475 | return FALSE; | |
476 | } | |
1b315056 CS |
477 | |
478 | /* Read the zlib header. In this case, it should be "ZLIB" followed | |
479 | by the uncompressed section size, 8 bytes in big-endian order. */ | |
151411f8 | 480 | if (! CONST_STRNEQ ((char*) header + compression_header_size, "ZLIB")) |
4a114e3e L |
481 | { |
482 | bfd_set_error (bfd_error_wrong_format); | |
483 | return FALSE; | |
484 | } | |
485 | ||
151411f8 L |
486 | uncompressed_size = bfd_getb64 (header + compression_header_size + 4); |
487 | if (compression_header_size != 0 | |
488 | && !bfd_check_compression_header (abfd, header, sec, | |
489 | uncompressed_size)) | |
490 | { | |
491 | bfd_set_error (bfd_error_wrong_format); | |
492 | return FALSE; | |
493 | } | |
4a114e3e L |
494 | sec->compressed_size = sec->size; |
495 | sec->size = uncompressed_size; | |
496 | sec->compress_status = DECOMPRESS_SECTION_SIZED; | |
1b315056 | 497 | |
4a114e3e | 498 | return TRUE; |
4a114e3e L |
499 | } |
500 | ||
501 | /* | |
502 | FUNCTION | |
503 | bfd_init_section_compress_status | |
504 | ||
505 | SYNOPSIS | |
506 | bfd_boolean bfd_init_section_compress_status | |
507 | (bfd *abfd, asection *section); | |
508 | ||
509 | DESCRIPTION | |
510 | If open for read, compress section, update section size with | |
511 | compressed size and set compress_status to COMPRESS_SECTION_DONE. | |
512 | ||
513 | Return @code{FALSE} if the section is not a valid compressed | |
514 | section or zlib is not installed on this machine. Otherwise, | |
515 | return @code{TRUE}. | |
516 | */ | |
517 | ||
518 | bfd_boolean | |
243340ad | 519 | bfd_init_section_compress_status (bfd *abfd, sec_ptr sec) |
4a114e3e | 520 | { |
4a114e3e L |
521 | bfd_size_type uncompressed_size; |
522 | bfd_byte *uncompressed_buffer; | |
523 | bfd_boolean ret; | |
524 | ||
525 | /* Error if not opened for read. */ | |
526 | if (abfd->direction != read_direction | |
527 | || sec->size == 0 | |
528 | || sec->rawsize != 0 | |
529 | || sec->contents != NULL | |
530 | || sec->compress_status != COMPRESS_SECTION_NONE) | |
1b315056 | 531 | { |
4a114e3e L |
532 | bfd_set_error (bfd_error_invalid_operation); |
533 | return FALSE; | |
1b315056 | 534 | } |
1b315056 | 535 | |
4a114e3e L |
536 | /* Read in the full section contents and compress it. */ |
537 | uncompressed_size = sec->size; | |
538 | uncompressed_buffer = (bfd_byte *) bfd_malloc (uncompressed_size); | |
539 | if (!bfd_get_section_contents (abfd, sec, uncompressed_buffer, | |
540 | 0, uncompressed_size)) | |
541 | ret = FALSE; | |
542 | else | |
151411f8 L |
543 | { |
544 | uncompressed_size = bfd_compress_section_contents (abfd, sec, | |
545 | uncompressed_buffer, | |
546 | uncompressed_size); | |
547 | ret = uncompressed_size != 0; | |
548 | } | |
1b315056 | 549 | |
4a114e3e | 550 | return ret; |
1b315056 | 551 | } |