Commit | Line | Data |
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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 | |
18ece1de | 67 | field was allocated using bfd_malloc() or equivalent. |
1b315056 | 68 | |
151411f8 L |
69 | Return the uncompressed size if the full section contents is |
70 | compressed successfully. Otherwise return 0. */ | |
1b315056 | 71 | |
151411f8 L |
72 | static bfd_size_type |
73 | bfd_compress_section_contents (bfd *abfd, sec_ptr sec, | |
243340ad L |
74 | bfd_byte *uncompressed_buffer, |
75 | bfd_size_type uncompressed_size) | |
1b315056 | 76 | { |
ae6a0217 | 77 | uLong compressed_size; |
151411f8 L |
78 | bfd_byte *buffer; |
79 | bfd_size_type buffer_size; | |
80 | bfd_boolean decompress; | |
51509926 L |
81 | #if defined(__GNUC__) && GCC_VERSION < 4007 |
82 | /* Work around a GCC uninitialized warning bug fixed in GCC 4.7. */ | |
83 | int zlib_size = 0; | |
84 | #else | |
151411f8 | 85 | int zlib_size; |
51509926 | 86 | #endif |
151411f8 L |
87 | int orig_compression_header_size; |
88 | int compression_header_size | |
89 | = bfd_get_compression_header_size (abfd, NULL); | |
90 | bfd_boolean compressed | |
91 | = bfd_is_section_compressed_with_header (abfd, sec, | |
92 | &orig_compression_header_size); | |
93 | ||
94 | if (compressed) | |
95 | { | |
96 | /* We shouldn't decompress unsupported compressed section. */ | |
97 | if (orig_compression_header_size < 0) | |
98 | abort (); | |
4a114e3e | 99 | |
151411f8 L |
100 | /* Different compression schemes. Just move the compressed section |
101 | contents to the right position. */ | |
102 | if (orig_compression_header_size == 0) | |
103 | { | |
104 | /* Convert it from .zdebug* section. Get the uncompressed | |
105 | size first. */ | |
106 | zlib_size = uncompressed_size; | |
107 | compressed_size = zlib_size + compression_header_size; | |
108 | uncompressed_size = bfd_getb64 (uncompressed_buffer + 4); | |
109 | } | |
110 | else | |
111 | { | |
112 | /* Convert it to .zdebug* section. */ | |
113 | zlib_size = uncompressed_size - orig_compression_header_size; | |
114 | compressed_size = zlib_size; | |
115 | } | |
116 | } | |
117 | else | |
118 | compressed_size = compressBound (uncompressed_size) + 12; | |
4281caad | 119 | |
151411f8 L |
120 | /* When converting from .zdebug* section, uncompress if it leads to |
121 | smaller size. */ | |
122 | if (compressed | |
123 | && orig_compression_header_size == 0 | |
124 | && compressed_size > uncompressed_size) | |
4a114e3e | 125 | { |
151411f8 L |
126 | decompress = TRUE; |
127 | buffer_size = uncompressed_size; | |
4a114e3e | 128 | } |
151411f8 L |
129 | else |
130 | { | |
131 | decompress = FALSE; | |
132 | buffer_size = compressed_size + compression_header_size; | |
133 | } | |
134 | buffer = (bfd_byte *) bfd_malloc (buffer_size); | |
135 | if (buffer == NULL) | |
136 | return 0; | |
4a114e3e | 137 | |
151411f8 | 138 | if (compressed) |
8d001214 | 139 | { |
151411f8 L |
140 | sec->size = uncompressed_size; |
141 | if (decompress) | |
142 | { | |
143 | if (!decompress_contents (uncompressed_buffer, zlib_size, | |
144 | buffer, uncompressed_size)) | |
145 | { | |
146 | bfd_set_error (bfd_error_bad_value); | |
147 | free (buffer); | |
148 | return 0; | |
149 | } | |
150 | free (uncompressed_buffer); | |
151 | sec->contents = buffer; | |
152 | sec->compress_status = COMPRESS_SECTION_DONE; | |
153 | return uncompressed_size; | |
154 | } | |
155 | else | |
156 | { | |
157 | bfd_update_compression_header (abfd, buffer, sec); | |
158 | memmove (buffer + compression_header_size, | |
159 | uncompressed_buffer + orig_compression_header_size, | |
160 | zlib_size); | |
161 | } | |
8d001214 L |
162 | } |
163 | else | |
164 | { | |
151411f8 L |
165 | bfd_size_type size = uncompressed_size; |
166 | int header_size = 12 + compression_header_size; | |
167 | if (compress ((Bytef*) buffer + header_size, | |
168 | &compressed_size, | |
169 | (const Bytef*) uncompressed_buffer, | |
170 | uncompressed_size) != Z_OK) | |
171 | { | |
172 | free (buffer); | |
173 | bfd_set_error (bfd_error_bad_value); | |
174 | return 0; | |
175 | } | |
176 | ||
177 | compressed_size += header_size; | |
178 | /* PR binutils/18087: If compression didn't make the section smaller, | |
179 | just keep it uncompressed. */ | |
180 | if (compressed_size < uncompressed_size) | |
181 | { | |
182 | bfd_update_compression_header (abfd, buffer, sec); | |
183 | ||
184 | /* Write the zlib header. In this case, it should be "ZLIB" | |
185 | followed by the uncompressed section size, 8 bytes in | |
186 | big-endian order. */ | |
187 | memcpy (buffer + compression_header_size, "ZLIB", 4); | |
188 | bfd_putb64 (size, buffer + compression_header_size + 4); | |
189 | } | |
190 | else | |
191 | { | |
192 | sec->contents = uncompressed_buffer; | |
193 | sec->compress_status = COMPRESS_SECTION_NONE; | |
194 | return uncompressed_size; | |
195 | } | |
8d001214 | 196 | } |
4a114e3e | 197 | |
151411f8 L |
198 | free (uncompressed_buffer); |
199 | sec->contents = buffer; | |
200 | sec->size = compressed_size; | |
201 | sec->compress_status = COMPRESS_SECTION_DONE; | |
202 | ||
203 | return uncompressed_size; | |
4a114e3e L |
204 | } |
205 | ||
206 | /* | |
207 | FUNCTION | |
208 | bfd_get_full_section_contents | |
209 | ||
210 | SYNOPSIS | |
211 | bfd_boolean bfd_get_full_section_contents | |
212 | (bfd *abfd, asection *section, bfd_byte **ptr); | |
213 | ||
214 | DESCRIPTION | |
215 | Read all data from @var{section} in BFD @var{abfd}, decompress | |
216 | if needed, and store in @var{*ptr}. If @var{*ptr} is NULL, | |
68ffbac6 | 217 | return @var{*ptr} with memory malloc'd by this function. |
4a114e3e L |
218 | |
219 | Return @code{TRUE} if the full section contents is retrieved | |
06614111 NC |
220 | successfully. If the section has no contents then this function |
221 | returns @code{TRUE} but @var{*ptr} is set to NULL. | |
4a114e3e L |
222 | */ |
223 | ||
224 | bfd_boolean | |
225 | bfd_get_full_section_contents (bfd *abfd, sec_ptr sec, bfd_byte **ptr) | |
226 | { | |
e57278ef | 227 | bfd_size_type sz; |
4a114e3e | 228 | bfd_byte *p = *ptr; |
82c6068a | 229 | bfd_boolean ret; |
38b774d2 AM |
230 | bfd_size_type save_size; |
231 | bfd_size_type save_rawsize; | |
4a114e3e | 232 | bfd_byte *compressed_buffer; |
151411f8 | 233 | unsigned int compression_header_size; |
4a114e3e | 234 | |
e57278ef AM |
235 | if (abfd->direction != write_direction && sec->rawsize != 0) |
236 | sz = sec->rawsize; | |
237 | else | |
238 | sz = sec->size; | |
4a114e3e | 239 | if (sz == 0) |
06614111 NC |
240 | { |
241 | *ptr = NULL; | |
242 | return TRUE; | |
243 | } | |
4a114e3e L |
244 | |
245 | switch (sec->compress_status) | |
246 | { | |
247 | case COMPRESS_SECTION_NONE: | |
248 | if (p == NULL) | |
249 | { | |
0d13c96b | 250 | p = (bfd_byte *) bfd_malloc (sz); |
4a114e3e L |
251 | if (p == NULL) |
252 | return FALSE; | |
4a114e3e | 253 | } |
06614111 | 254 | |
82c6068a AM |
255 | if (!bfd_get_section_contents (abfd, sec, p, 0, sz)) |
256 | { | |
257 | if (*ptr != p) | |
258 | free (p); | |
259 | return FALSE; | |
260 | } | |
261 | *ptr = p; | |
4a114e3e L |
262 | return TRUE; |
263 | ||
264 | case DECOMPRESS_SECTION_SIZED: | |
82c6068a | 265 | /* Read in the full compressed section contents. */ |
38b774d2 | 266 | compressed_buffer = (bfd_byte *) bfd_malloc (sec->compressed_size); |
82c6068a AM |
267 | if (compressed_buffer == NULL) |
268 | return FALSE; | |
38b774d2 AM |
269 | save_rawsize = sec->rawsize; |
270 | save_size = sec->size; | |
82c6068a AM |
271 | /* Clear rawsize, set size to compressed size and set compress_status |
272 | to COMPRESS_SECTION_NONE. If the compressed size is bigger than | |
273 | the uncompressed size, bfd_get_section_contents will fail. */ | |
274 | sec->rawsize = 0; | |
38b774d2 | 275 | sec->size = sec->compressed_size; |
82c6068a AM |
276 | sec->compress_status = COMPRESS_SECTION_NONE; |
277 | ret = bfd_get_section_contents (abfd, sec, compressed_buffer, | |
38b774d2 | 278 | 0, sec->compressed_size); |
82c6068a | 279 | /* Restore rawsize and size. */ |
38b774d2 AM |
280 | sec->rawsize = save_rawsize; |
281 | sec->size = save_size; | |
4a114e3e | 282 | sec->compress_status = DECOMPRESS_SECTION_SIZED; |
82c6068a AM |
283 | if (!ret) |
284 | goto fail_compressed; | |
4a114e3e | 285 | |
38b774d2 AM |
286 | if (p == NULL) |
287 | p = (bfd_byte *) bfd_malloc (sz); | |
288 | if (p == NULL) | |
4a114e3e | 289 | goto fail_compressed; |
4a114e3e | 290 | |
151411f8 L |
291 | compression_header_size = bfd_get_compression_header_size (abfd, sec); |
292 | if (!decompress_contents (compressed_buffer + compression_header_size, | |
293 | sec->compressed_size, p, sz)) | |
82c6068a AM |
294 | { |
295 | bfd_set_error (bfd_error_bad_value); | |
38b774d2 AM |
296 | if (p != *ptr) |
297 | free (p); | |
82c6068a AM |
298 | fail_compressed: |
299 | free (compressed_buffer); | |
300 | return FALSE; | |
301 | } | |
4a114e3e | 302 | |
82c6068a | 303 | free (compressed_buffer); |
38b774d2 AM |
304 | *ptr = p; |
305 | return TRUE; | |
4a114e3e | 306 | |
82c6068a | 307 | case COMPRESS_SECTION_DONE: |
db6b071a NC |
308 | if (sec->contents == NULL) |
309 | return FALSE; | |
82c6068a AM |
310 | if (p == NULL) |
311 | { | |
312 | p = (bfd_byte *) bfd_malloc (sz); | |
313 | if (p == NULL) | |
314 | return FALSE; | |
315 | *ptr = p; | |
316 | } | |
06614111 NC |
317 | /* PR 17512; file: 5bc29788. */ |
318 | if (p != sec->contents) | |
319 | memcpy (p, sec->contents, sz); | |
82c6068a | 320 | return TRUE; |
4a114e3e | 321 | |
82c6068a AM |
322 | default: |
323 | abort (); | |
324 | } | |
4a114e3e L |
325 | } |
326 | ||
8a72cc6e AM |
327 | /* |
328 | FUNCTION | |
329 | bfd_cache_section_contents | |
330 | ||
331 | SYNOPSIS | |
332 | void bfd_cache_section_contents | |
333 | (asection *sec, void *contents); | |
334 | ||
335 | DESCRIPTION | |
336 | Stash @var(contents) so any following reads of @var(sec) do | |
337 | not need to decompress again. | |
338 | */ | |
339 | ||
340 | void | |
341 | bfd_cache_section_contents (asection *sec, void *contents) | |
342 | { | |
343 | if (sec->compress_status == DECOMPRESS_SECTION_SIZED) | |
344 | sec->compress_status = COMPRESS_SECTION_DONE; | |
345 | sec->contents = contents; | |
346 | sec->flags |= SEC_IN_MEMORY; | |
347 | } | |
348 | ||
4a114e3e L |
349 | /* |
350 | FUNCTION | |
151411f8 | 351 | bfd_is_section_compressed_with_header |
4a114e3e L |
352 | |
353 | SYNOPSIS | |
151411f8 L |
354 | bfd_boolean bfd_is_section_compressed_with_header |
355 | (bfd *abfd, asection *section, | |
356 | int *compression_header_size_p); | |
4a114e3e L |
357 | |
358 | DESCRIPTION | |
151411f8 L |
359 | Return @code{TRUE} if @var{section} is compressed. Compression |
360 | header size is returned in @var{compression_header_size_p}. If | |
361 | compression is unsupported, compression header size is returned | |
362 | with -1. | |
4a114e3e L |
363 | */ |
364 | ||
365 | bfd_boolean | |
151411f8 L |
366 | bfd_is_section_compressed_with_header (bfd *abfd, sec_ptr sec, |
367 | int *compression_header_size_p) | |
4a114e3e | 368 | { |
151411f8 L |
369 | bfd_byte header[MAX_COMPRESSION_HEADER_SIZE + 12]; |
370 | int compression_header_size; | |
371 | int header_size = 12; | |
64f40162 L |
372 | unsigned int saved = sec->compress_status; |
373 | bfd_boolean compressed; | |
374 | ||
151411f8 L |
375 | compression_header_size = bfd_get_compression_header_size (abfd, sec); |
376 | if (compression_header_size > MAX_COMPRESSION_HEADER_SIZE) | |
377 | abort (); | |
378 | header_size += compression_header_size; | |
379 | ||
64f40162 L |
380 | /* Don't decompress the section. */ |
381 | sec->compress_status = COMPRESS_SECTION_NONE; | |
4a114e3e L |
382 | |
383 | /* Read the zlib header. In this case, it should be "ZLIB" followed | |
384 | by the uncompressed section size, 8 bytes in big-endian order. */ | |
151411f8 L |
385 | compressed = bfd_get_section_contents (abfd, sec, header, 0, |
386 | header_size) | |
387 | && CONST_STRNEQ ((char*) header + compression_header_size, | |
388 | "ZLIB"); | |
64f40162 | 389 | |
151411f8 L |
390 | if (compressed) |
391 | { | |
392 | if (compression_header_size != 0) | |
393 | { | |
394 | bfd_size_type uncompressed_size | |
395 | = bfd_getb64 ((bfd_byte *) header | |
396 | + compression_header_size + 4); | |
397 | if (!bfd_check_compression_header (abfd, header, sec, | |
398 | uncompressed_size)) | |
399 | compression_header_size = -1; | |
400 | } | |
401 | /* Check for the pathalogical case of a debug string section that | |
402 | contains the string ZLIB.... as the first entry. We assume that | |
403 | no uncompressed .debug_str section would ever be big enough to | |
404 | have the first byte of its (big-endian) size be non-zero. */ | |
405 | else if (strcmp (sec->name, ".debug_str") == 0 | |
406 | && ISPRINT (header[compression_header_size + 4])) | |
407 | compressed = FALSE; | |
408 | } | |
a953eec9 | 409 | |
64f40162 L |
410 | /* Restore compress_status. */ |
411 | sec->compress_status = saved; | |
151411f8 | 412 | *compression_header_size_p = compression_header_size; |
64f40162 | 413 | return compressed; |
4a114e3e L |
414 | } |
415 | ||
151411f8 L |
416 | /* |
417 | FUNCTION | |
418 | bfd_is_section_compressed | |
419 | ||
420 | SYNOPSIS | |
421 | bfd_boolean bfd_is_section_compressed | |
422 | (bfd *abfd, asection *section); | |
423 | ||
424 | DESCRIPTION | |
425 | Return @code{TRUE} if @var{section} is compressed. | |
426 | */ | |
427 | ||
428 | bfd_boolean | |
429 | bfd_is_section_compressed (bfd *abfd, sec_ptr sec) | |
430 | { | |
431 | int compression_header_size; | |
432 | return (bfd_is_section_compressed_with_header (abfd, sec, | |
433 | &compression_header_size) | |
434 | && compression_header_size >= 0); | |
435 | } | |
436 | ||
4a114e3e L |
437 | /* |
438 | FUNCTION | |
439 | bfd_init_section_decompress_status | |
440 | ||
441 | SYNOPSIS | |
442 | bfd_boolean bfd_init_section_decompress_status | |
443 | (bfd *abfd, asection *section); | |
444 | ||
445 | DESCRIPTION | |
446 | Record compressed section size, update section size with | |
447 | decompressed size and set compress_status to | |
448 | DECOMPRESS_SECTION_SIZED. | |
449 | ||
450 | Return @code{FALSE} if the section is not a valid compressed | |
18ece1de | 451 | section. Otherwise, return @code{TRUE}. |
4a114e3e L |
452 | */ |
453 | ||
454 | bfd_boolean | |
243340ad | 455 | bfd_init_section_decompress_status (bfd *abfd, sec_ptr sec) |
4a114e3e | 456 | { |
151411f8 L |
457 | bfd_byte header[MAX_COMPRESSION_HEADER_SIZE + 12]; |
458 | int compression_header_size; | |
459 | int header_size = 12; | |
4a114e3e L |
460 | bfd_size_type uncompressed_size; |
461 | ||
151411f8 L |
462 | compression_header_size = bfd_get_compression_header_size (abfd, sec); |
463 | if (compression_header_size > MAX_COMPRESSION_HEADER_SIZE) | |
464 | abort (); | |
465 | header_size += compression_header_size; | |
466 | ||
4a114e3e L |
467 | if (sec->rawsize != 0 |
468 | || sec->contents != NULL | |
469 | || sec->compress_status != COMPRESS_SECTION_NONE | |
151411f8 | 470 | || !bfd_get_section_contents (abfd, sec, header, 0, header_size)) |
4a114e3e L |
471 | { |
472 | bfd_set_error (bfd_error_invalid_operation); | |
473 | return FALSE; | |
474 | } | |
1b315056 CS |
475 | |
476 | /* Read the zlib header. In this case, it should be "ZLIB" followed | |
477 | by the uncompressed section size, 8 bytes in big-endian order. */ | |
151411f8 | 478 | if (! CONST_STRNEQ ((char*) header + compression_header_size, "ZLIB")) |
4a114e3e L |
479 | { |
480 | bfd_set_error (bfd_error_wrong_format); | |
481 | return FALSE; | |
482 | } | |
483 | ||
151411f8 L |
484 | uncompressed_size = bfd_getb64 (header + compression_header_size + 4); |
485 | if (compression_header_size != 0 | |
486 | && !bfd_check_compression_header (abfd, header, sec, | |
487 | uncompressed_size)) | |
488 | { | |
489 | bfd_set_error (bfd_error_wrong_format); | |
490 | return FALSE; | |
491 | } | |
4a114e3e L |
492 | sec->compressed_size = sec->size; |
493 | sec->size = uncompressed_size; | |
494 | sec->compress_status = DECOMPRESS_SECTION_SIZED; | |
1b315056 | 495 | |
4a114e3e | 496 | return TRUE; |
4a114e3e L |
497 | } |
498 | ||
499 | /* | |
500 | FUNCTION | |
501 | bfd_init_section_compress_status | |
502 | ||
503 | SYNOPSIS | |
504 | bfd_boolean bfd_init_section_compress_status | |
505 | (bfd *abfd, asection *section); | |
506 | ||
507 | DESCRIPTION | |
508 | If open for read, compress section, update section size with | |
509 | compressed size and set compress_status to COMPRESS_SECTION_DONE. | |
510 | ||
511 | Return @code{FALSE} if the section is not a valid compressed | |
18ece1de | 512 | section. Otherwise, return @code{TRUE}. |
4a114e3e L |
513 | */ |
514 | ||
515 | bfd_boolean | |
243340ad | 516 | bfd_init_section_compress_status (bfd *abfd, sec_ptr sec) |
4a114e3e | 517 | { |
4a114e3e L |
518 | bfd_size_type uncompressed_size; |
519 | bfd_byte *uncompressed_buffer; | |
520 | bfd_boolean ret; | |
521 | ||
522 | /* Error if not opened for read. */ | |
523 | if (abfd->direction != read_direction | |
524 | || sec->size == 0 | |
525 | || sec->rawsize != 0 | |
526 | || sec->contents != NULL | |
527 | || sec->compress_status != COMPRESS_SECTION_NONE) | |
1b315056 | 528 | { |
4a114e3e L |
529 | bfd_set_error (bfd_error_invalid_operation); |
530 | return FALSE; | |
1b315056 | 531 | } |
1b315056 | 532 | |
4a114e3e L |
533 | /* Read in the full section contents and compress it. */ |
534 | uncompressed_size = sec->size; | |
535 | uncompressed_buffer = (bfd_byte *) bfd_malloc (uncompressed_size); | |
536 | if (!bfd_get_section_contents (abfd, sec, uncompressed_buffer, | |
537 | 0, uncompressed_size)) | |
538 | ret = FALSE; | |
539 | else | |
151411f8 L |
540 | { |
541 | uncompressed_size = bfd_compress_section_contents (abfd, sec, | |
542 | uncompressed_buffer, | |
543 | uncompressed_size); | |
544 | ret = uncompressed_size != 0; | |
545 | } | |
1b315056 | 546 | |
4a114e3e | 547 | return ret; |
1b315056 | 548 | } |