Commit | Line | Data |
---|---|---|
252b5132 | 1 | /* Generic BFD library interface and support routines. |
b90efa5b | 2 | Copyright (C) 1990-2015 Free Software Foundation, Inc. |
252b5132 RH |
3 | Written by Cygnus Support. |
4 | ||
3af9a47b | 5 | This file is part of BFD, the Binary File Descriptor library. |
252b5132 | 6 | |
3af9a47b 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 |
3af9a47b | 10 | (at your option) any later version. |
252b5132 | 11 | |
3af9a47b 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 | |
3af9a47b 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 RH |
21 | |
22 | /* | |
79bb5c23 NC |
23 | INODE |
24 | typedef bfd, Error reporting, BFD front end, BFD front end | |
25 | ||
252b5132 RH |
26 | SECTION |
27 | <<typedef bfd>> | |
28 | ||
29 | A BFD has type <<bfd>>; objects of this type are the | |
30 | cornerstone of any application using BFD. Using BFD | |
31 | consists of making references though the BFD and to data in the BFD. | |
32 | ||
33 | Here is the structure that defines the type <<bfd>>. It | |
34 | contains the major data about the file and pointers | |
35 | to the rest of the data. | |
36 | ||
37 | CODE_FRAGMENT | |
38 | . | |
a50b1753 NC |
39 | .enum bfd_direction |
40 | . { | |
41 | . no_direction = 0, | |
42 | . read_direction = 1, | |
43 | . write_direction = 2, | |
44 | . both_direction = 3 | |
45 | . }; | |
46 | . | |
5ae0078c L |
47 | .enum bfd_plugin_format |
48 | . { | |
49 | . bfd_plugin_uknown = 0, | |
50 | . bfd_plugin_yes = 1, | |
51 | . bfd_plugin_no = 2 | |
52 | . }; | |
53 | . | |
c74f7d1c JT |
54 | .struct bfd_build_id |
55 | . { | |
56f40832 | 56 | . bfd_size_type size; |
c74f7d1c JT |
57 | . bfd_byte data[1]; |
58 | . }; | |
59 | . | |
c2852e88 | 60 | .struct bfd |
252b5132 | 61 | .{ |
b5f79c76 NC |
62 | . {* The filename the application opened the BFD with. *} |
63 | . const char *filename; | |
252b5132 | 64 | . |
b5f79c76 NC |
65 | . {* A pointer to the target jump table. *} |
66 | . const struct bfd_target *xvec; | |
252b5132 | 67 | . |
40838a72 AC |
68 | . {* The IOSTREAM, and corresponding IO vector that provide access |
69 | . to the file backing the BFD. *} | |
c58b9523 | 70 | . void *iostream; |
40838a72 | 71 | . const struct bfd_iovec *iovec; |
b5f79c76 | 72 | . |
b5f79c76 NC |
73 | . {* The caching routines use these to maintain a |
74 | . least-recently-used list of BFDs. *} | |
2ce40c65 | 75 | . struct bfd *lru_prev, *lru_next; |
b5f79c76 NC |
76 | . |
77 | . {* When a file is closed by the caching routines, BFD retains | |
78 | . state information on the file here... *} | |
79 | . ufile_ptr where; | |
80 | . | |
b34976b6 | 81 | . {* File modified time, if mtime_set is TRUE. *} |
b5f79c76 NC |
82 | . long mtime; |
83 | . | |
b6a1c03a AM |
84 | . {* A unique identifier of the BFD *} |
85 | . unsigned int id; | |
b5f79c76 NC |
86 | . |
87 | . {* The format which belongs to the BFD. (object, core, etc.) *} | |
b6a1c03a | 88 | . ENUM_BITFIELD (bfd_format) format : 3; |
b5f79c76 NC |
89 | . |
90 | . {* The direction with which the BFD was opened. *} | |
b6a1c03a | 91 | . ENUM_BITFIELD (bfd_direction) direction : 2; |
b5f79c76 NC |
92 | . |
93 | . {* Format_specific flags. *} | |
151411f8 | 94 | . flagword flags : 18; |
b5f79c76 | 95 | . |
6ad2759d L |
96 | . {* Values that may appear in the flags field of a BFD. These also |
97 | . appear in the object_flags field of the bfd_target structure, where | |
98 | . they indicate the set of flags used by that backend (not all flags | |
99 | . are meaningful for all object file formats) (FIXME: at the moment, | |
100 | . the object_flags values have mostly just been copied from backend | |
101 | . to another, and are not necessarily correct). *} | |
102 | . | |
103 | .#define BFD_NO_FLAGS 0x00 | |
104 | . | |
105 | . {* BFD contains relocation entries. *} | |
106 | .#define HAS_RELOC 0x01 | |
107 | . | |
108 | . {* BFD is directly executable. *} | |
109 | .#define EXEC_P 0x02 | |
110 | . | |
111 | . {* BFD has line number information (basically used for F_LNNO in a | |
112 | . COFF header). *} | |
113 | .#define HAS_LINENO 0x04 | |
114 | . | |
115 | . {* BFD has debugging information. *} | |
116 | .#define HAS_DEBUG 0x08 | |
117 | . | |
118 | . {* BFD has symbols. *} | |
119 | .#define HAS_SYMS 0x10 | |
120 | . | |
121 | . {* BFD has local symbols (basically used for F_LSYMS in a COFF | |
122 | . header). *} | |
123 | .#define HAS_LOCALS 0x20 | |
124 | . | |
125 | . {* BFD is a dynamic object. *} | |
126 | .#define DYNAMIC 0x40 | |
127 | . | |
128 | . {* Text section is write protected (if D_PAGED is not set, this is | |
129 | . like an a.out NMAGIC file) (the linker sets this by default, but | |
130 | . clears it for -r or -N). *} | |
131 | .#define WP_TEXT 0x80 | |
132 | . | |
133 | . {* BFD is dynamically paged (this is like an a.out ZMAGIC file) (the | |
134 | . linker sets this by default, but clears it for -r or -n or -N). *} | |
135 | .#define D_PAGED 0x100 | |
136 | . | |
137 | . {* BFD is relaxable (this means that bfd_relax_section may be able to | |
138 | . do something) (sometimes bfd_relax_section can do something even if | |
139 | . this is not set). *} | |
140 | .#define BFD_IS_RELAXABLE 0x200 | |
141 | . | |
142 | . {* This may be set before writing out a BFD to request using a | |
143 | . traditional format. For example, this is used to request that when | |
144 | . writing out an a.out object the symbols not be hashed to eliminate | |
145 | . duplicates. *} | |
146 | .#define BFD_TRADITIONAL_FORMAT 0x400 | |
147 | . | |
148 | . {* This flag indicates that the BFD contents are actually cached | |
149 | . in memory. If this is set, iostream points to a bfd_in_memory | |
150 | . struct. *} | |
151 | .#define BFD_IN_MEMORY 0x800 | |
152 | . | |
6ad2759d L |
153 | . {* This BFD has been created by the linker and doesn't correspond |
154 | . to any input file. *} | |
b6a1c03a | 155 | .#define BFD_LINKER_CREATED 0x1000 |
6ad2759d | 156 | . |
36e4dce6 CD |
157 | . {* This may be set before writing out a BFD to request that it |
158 | . be written using values for UIDs, GIDs, timestamps, etc. that | |
159 | . will be consistent from run to run. *} | |
b6a1c03a | 160 | .#define BFD_DETERMINISTIC_OUTPUT 0x2000 |
36e4dce6 | 161 | . |
4a114e3e | 162 | . {* Compress sections in this BFD. *} |
b6a1c03a | 163 | .#define BFD_COMPRESS 0x4000 |
4a114e3e L |
164 | . |
165 | . {* Decompress sections in this BFD. *} | |
b6a1c03a | 166 | .#define BFD_DECOMPRESS 0x8000 |
4a114e3e | 167 | . |
9e2278f5 | 168 | . {* BFD is a dummy, for plugins. *} |
b6a1c03a | 169 | .#define BFD_PLUGIN 0x10000 |
9e2278f5 | 170 | . |
151411f8 L |
171 | . {* Compress sections in this BFD with SHF_COMPRESSED from gABI. *} |
172 | .#define BFD_COMPRESS_GABI 0x20000 | |
173 | . | |
4a114e3e L |
174 | . {* Flags bits to be saved in bfd_preserve_save. *} |
175 | .#define BFD_FLAGS_SAVED \ | |
151411f8 L |
176 | . (BFD_IN_MEMORY | BFD_COMPRESS | BFD_DECOMPRESS | BFD_PLUGIN \ |
177 | . | BFD_COMPRESS_GABI) | |
4a114e3e | 178 | . |
6b6bc957 L |
179 | . {* Flags bits which are for BFD use only. *} |
180 | .#define BFD_FLAGS_FOR_BFD_USE_MASK \ | |
181 | . (BFD_IN_MEMORY | BFD_COMPRESS | BFD_DECOMPRESS | BFD_LINKER_CREATED \ | |
151411f8 L |
182 | . | BFD_PLUGIN | BFD_TRADITIONAL_FORMAT | BFD_DETERMINISTIC_OUTPUT \ |
183 | . | BFD_COMPRESS_GABI) | |
6b6bc957 | 184 | . |
b6a1c03a AM |
185 | . {* Is the file descriptor being cached? That is, can it be closed as |
186 | . needed, and re-opened when accessed later? *} | |
187 | . unsigned int cacheable : 1; | |
188 | . | |
189 | . {* Marks whether there was a default target specified when the | |
190 | . BFD was opened. This is used to select which matching algorithm | |
191 | . to use to choose the back end. *} | |
192 | . unsigned int target_defaulted : 1; | |
193 | . | |
194 | . {* ... and here: (``once'' means at least once). *} | |
195 | . unsigned int opened_once : 1; | |
196 | . | |
197 | . {* Set if we have a locally maintained mtime value, rather than | |
198 | . getting it from the file each time. *} | |
199 | . unsigned int mtime_set : 1; | |
200 | . | |
201 | . {* Flag set if symbols from this BFD should not be exported. *} | |
202 | . unsigned int no_export : 1; | |
203 | . | |
204 | . {* Remember when output has begun, to stop strange things | |
205 | . from happening. *} | |
206 | . unsigned int output_has_begun : 1; | |
207 | . | |
208 | . {* Have archive map. *} | |
209 | . unsigned int has_armap : 1; | |
210 | . | |
211 | . {* Set if this is a thin archive. *} | |
212 | . unsigned int is_thin_archive : 1; | |
213 | . | |
214 | . {* Set if only required symbols should be added in the link hash table for | |
215 | . this object. Used by VMS linkers. *} | |
216 | . unsigned int selective_search : 1; | |
217 | . | |
218 | . {* Set if this is the linker output BFD. *} | |
219 | . unsigned int is_linker_output : 1; | |
220 | . | |
f6fe1ccd L |
221 | . {* Set if this is the linker input BFD. *} |
222 | . unsigned int is_linker_input : 1; | |
223 | . | |
5ae0078c L |
224 | . {* If this is an input for a compiler plug-in library. *} |
225 | . ENUM_BITFIELD (bfd_plugin_format) plugin_format : 2; | |
226 | . | |
ce875075 AM |
227 | . {* Set if this is a plugin output file. *} |
228 | . unsigned int lto_output : 1; | |
229 | . | |
5ae0078c L |
230 | . {* Set to dummy BFD created when claimed by a compiler plug-in |
231 | . library. *} | |
232 | . bfd *plugin_dummy_bfd; | |
233 | . | |
b5f79c76 NC |
234 | . {* Currently my_archive is tested before adding origin to |
235 | . anything. I believe that this can become always an add of | |
236 | . origin, with origin set to 0 for non archive files. *} | |
237 | . ufile_ptr origin; | |
238 | . | |
a8da6403 NC |
239 | . {* The origin in the archive of the proxy entry. This will |
240 | . normally be the same as origin, except for thin archives, | |
241 | . when it will contain the current offset of the proxy in the | |
242 | . thin archive rather than the offset of the bfd in its actual | |
243 | . container. *} | |
244 | . ufile_ptr proxy_origin; | |
245 | . | |
b5f79c76 NC |
246 | . {* A hash table for section names. *} |
247 | . struct bfd_hash_table section_htab; | |
248 | . | |
249 | . {* Pointer to linked list of sections. *} | |
198beae2 | 250 | . struct bfd_section *sections; |
b5f79c76 | 251 | . |
5daa8fe7 L |
252 | . {* The last section on the section list. *} |
253 | . struct bfd_section *section_last; | |
b5f79c76 NC |
254 | . |
255 | . {* The number of sections. *} | |
256 | . unsigned int section_count; | |
257 | . | |
b6a1c03a AM |
258 | . {* A field used by _bfd_generic_link_add_archive_symbols. This will |
259 | . be used only for archive elements. *} | |
260 | . int archive_pass; | |
261 | . | |
b5f79c76 NC |
262 | . {* Stuff only useful for object files: |
263 | . The start address. *} | |
264 | . bfd_vma start_address; | |
265 | . | |
5c1d2f5f AM |
266 | . {* Symbol table for output BFD (with symcount entries). |
267 | . Also used by the linker to cache input BFD symbols. *} | |
fc0a2244 | 268 | . struct bfd_symbol **outsymbols; |
b5f79c76 | 269 | . |
b6a1c03a AM |
270 | . {* Used for input and output. *} |
271 | . unsigned int symcount; | |
272 | . | |
1f70368c DJ |
273 | . {* Used for slurped dynamic symbol tables. *} |
274 | . unsigned int dynsymcount; | |
275 | . | |
b5f79c76 NC |
276 | . {* Pointer to structure which contains architecture information. *} |
277 | . const struct bfd_arch_info *arch_info; | |
278 | . | |
279 | . {* Stuff only useful for archives. *} | |
c58b9523 | 280 | . void *arelt_data; |
2ce40c65 | 281 | . struct bfd *my_archive; {* The containing archive BFD. *} |
cc481421 | 282 | . struct bfd *archive_next; {* The next BFD in the archive. *} |
2ce40c65 | 283 | . struct bfd *archive_head; {* The first BFD in the archive. *} |
a8da6403 NC |
284 | . struct bfd *nested_archives; {* List of nested archive in a flattened |
285 | . thin archive. *} | |
252b5132 | 286 | . |
c72f2fb2 AM |
287 | . union { |
288 | . {* For input BFDs, a chain of BFDs involved in a link. *} | |
289 | . struct bfd *next; | |
290 | . {* For output BFD, the linker hash table. *} | |
291 | . struct bfd_link_hash_table *hash; | |
292 | . } link; | |
b5f79c76 | 293 | . |
b5f79c76 NC |
294 | . {* Used by the back end to hold private data. *} |
295 | . union | |
296 | . { | |
252b5132 RH |
297 | . struct aout_data_struct *aout_data; |
298 | . struct artdata *aout_ar_data; | |
299 | . struct _oasys_data *oasys_obj_data; | |
300 | . struct _oasys_ar_data *oasys_ar_data; | |
301 | . struct coff_tdata *coff_obj_data; | |
302 | . struct pe_tdata *pe_obj_data; | |
303 | . struct xcoff_tdata *xcoff_obj_data; | |
304 | . struct ecoff_tdata *ecoff_obj_data; | |
305 | . struct ieee_data_struct *ieee_data; | |
306 | . struct ieee_ar_data_struct *ieee_ar_data; | |
307 | . struct srec_data_struct *srec_data; | |
c067354b | 308 | . struct verilog_data_struct *verilog_data; |
252b5132 RH |
309 | . struct ihex_data_struct *ihex_data; |
310 | . struct tekhex_data_struct *tekhex_data; | |
311 | . struct elf_obj_tdata *elf_obj_data; | |
312 | . struct nlm_obj_tdata *nlm_obj_data; | |
313 | . struct bout_data_struct *bout_data; | |
3c3bdf30 | 314 | . struct mmo_data_struct *mmo_data; |
252b5132 RH |
315 | . struct sun_core_struct *sun_core_data; |
316 | . struct sco5_core_struct *sco5_core_data; | |
317 | . struct trad_core_struct *trad_core_data; | |
318 | . struct som_data_struct *som_data; | |
319 | . struct hpux_core_struct *hpux_core_data; | |
320 | . struct hppabsd_core_struct *hppabsd_core_data; | |
321 | . struct sgi_core_struct *sgi_core_data; | |
322 | . struct lynx_core_struct *lynx_core_data; | |
323 | . struct osf_core_struct *osf_core_data; | |
324 | . struct cisco_core_struct *cisco_core_data; | |
325 | . struct versados_data_struct *versados_data; | |
326 | . struct netbsd_core_struct *netbsd_core_data; | |
3af9a47b NC |
327 | . struct mach_o_data_struct *mach_o_data; |
328 | . struct mach_o_fat_data_struct *mach_o_fat_data; | |
ce3c775b | 329 | . struct plugin_data_struct *plugin_data; |
3af9a47b NC |
330 | . struct bfd_pef_data_struct *pef_data; |
331 | . struct bfd_pef_xlib_data_struct *pef_xlib_data; | |
332 | . struct bfd_sym_data_struct *sym_data; | |
c58b9523 | 333 | . void *any; |
b5f79c76 NC |
334 | . } |
335 | . tdata; | |
aebad5fe | 336 | . |
b5f79c76 | 337 | . {* Used by the application to hold private data. *} |
c58b9523 | 338 | . void *usrdata; |
252b5132 RH |
339 | . |
340 | . {* Where all the allocated stuff under this BFD goes. This is a | |
c58b9523 AM |
341 | . struct objalloc *, but we use void * to avoid requiring the inclusion |
342 | . of objalloc.h. *} | |
343 | . void *memory; | |
c74f7d1c JT |
344 | . |
345 | . {* For input BFDs, the build ID, if the object has one. *} | |
346 | . const struct bfd_build_id *build_id; | |
252b5132 RH |
347 | .}; |
348 | . | |
27b829ee NC |
349 | .{* See note beside bfd_set_section_userdata. *} |
350 | .static inline bfd_boolean | |
351 | .bfd_set_cacheable (bfd * abfd, bfd_boolean val) | |
352 | .{ | |
353 | . abfd->cacheable = val; | |
354 | . return TRUE; | |
355 | .} | |
356 | . | |
252b5132 RH |
357 | */ |
358 | ||
252b5132 | 359 | #include "sysdep.h" |
252b5132 | 360 | #include <stdarg.h> |
3db64b00 AM |
361 | #include "bfd.h" |
362 | #include "bfdver.h" | |
252b5132 | 363 | #include "libiberty.h" |
3fad56a3 | 364 | #include "demangle.h" |
3882b010 | 365 | #include "safe-ctype.h" |
252b5132 RH |
366 | #include "bfdlink.h" |
367 | #include "libbfd.h" | |
368 | #include "coff/internal.h" | |
369 | #include "coff/sym.h" | |
370 | #include "libcoff.h" | |
371 | #include "libecoff.h" | |
372 | #undef obj_symbols | |
373 | #include "elf-bfd.h" | |
3168356f AM |
374 | |
375 | #ifndef EXIT_FAILURE | |
376 | #define EXIT_FAILURE 1 | |
377 | #endif | |
378 | ||
252b5132 RH |
379 | \f |
380 | /* provide storage for subsystem, stack and heap data which may have been | |
381 | passed in on the command line. Ld puts this data into a bfd_link_info | |
382 | struct which ultimately gets passed in to the bfd. When it arrives, copy | |
383 | it to the following struct so that the data will be available in coffcode.h | |
384 | where it is needed. The typedef's used are defined in bfd.h */ | |
252b5132 RH |
385 | \f |
386 | /* | |
79bb5c23 NC |
387 | INODE |
388 | Error reporting, Miscellaneous, typedef bfd, BFD front end | |
389 | ||
252b5132 RH |
390 | SECTION |
391 | Error reporting | |
392 | ||
393 | Most BFD functions return nonzero on success (check their | |
394 | individual documentation for precise semantics). On an error, | |
395 | they call <<bfd_set_error>> to set an error condition that callers | |
396 | can check by calling <<bfd_get_error>>. | |
397 | If that returns <<bfd_error_system_call>>, then check | |
398 | <<errno>>. | |
399 | ||
400 | The easiest way to report a BFD error to the user is to | |
401 | use <<bfd_perror>>. | |
402 | ||
403 | SUBSECTION | |
404 | Type <<bfd_error_type>> | |
405 | ||
406 | The values returned by <<bfd_get_error>> are defined by the | |
407 | enumerated type <<bfd_error_type>>. | |
408 | ||
409 | CODE_FRAGMENT | |
410 | . | |
411 | .typedef enum bfd_error | |
412 | .{ | |
413 | . bfd_error_no_error = 0, | |
414 | . bfd_error_system_call, | |
415 | . bfd_error_invalid_target, | |
416 | . bfd_error_wrong_format, | |
3619ad04 | 417 | . bfd_error_wrong_object_format, |
252b5132 RH |
418 | . bfd_error_invalid_operation, |
419 | . bfd_error_no_memory, | |
420 | . bfd_error_no_symbols, | |
421 | . bfd_error_no_armap, | |
422 | . bfd_error_no_more_archived_files, | |
423 | . bfd_error_malformed_archive, | |
ff5ac77b | 424 | . bfd_error_missing_dso, |
252b5132 RH |
425 | . bfd_error_file_not_recognized, |
426 | . bfd_error_file_ambiguously_recognized, | |
427 | . bfd_error_no_contents, | |
428 | . bfd_error_nonrepresentable_section, | |
429 | . bfd_error_no_debug_section, | |
430 | . bfd_error_bad_value, | |
431 | . bfd_error_file_truncated, | |
432 | . bfd_error_file_too_big, | |
ffda70fc | 433 | . bfd_error_on_input, |
252b5132 | 434 | . bfd_error_invalid_error_code |
b5f79c76 NC |
435 | .} |
436 | .bfd_error_type; | |
252b5132 RH |
437 | . |
438 | */ | |
439 | ||
440 | static bfd_error_type bfd_error = bfd_error_no_error; | |
ffda70fc AM |
441 | static bfd *input_bfd = NULL; |
442 | static bfd_error_type input_error = bfd_error_no_error; | |
252b5132 | 443 | |
55ab10f0 NC |
444 | const char *const bfd_errmsgs[] = |
445 | { | |
446 | N_("No error"), | |
447 | N_("System call error"), | |
448 | N_("Invalid bfd target"), | |
449 | N_("File in wrong format"), | |
3619ad04 | 450 | N_("Archive object file in wrong format"), |
55ab10f0 NC |
451 | N_("Invalid operation"), |
452 | N_("Memory exhausted"), | |
453 | N_("No symbols"), | |
454 | N_("Archive has no index; run ranlib to add one"), | |
455 | N_("No more archived files"), | |
456 | N_("Malformed archive"), | |
ff5ac77b | 457 | N_("DSO missing from command line"), |
55ab10f0 NC |
458 | N_("File format not recognized"), |
459 | N_("File format is ambiguous"), | |
460 | N_("Section has no contents"), | |
461 | N_("Nonrepresentable section on output"), | |
462 | N_("Symbol needs debug section which does not exist"), | |
463 | N_("Bad value"), | |
464 | N_("File truncated"), | |
465 | N_("File too big"), | |
ffda70fc | 466 | N_("Error reading %s: %s"), |
55ab10f0 NC |
467 | N_("#<Invalid error code>") |
468 | }; | |
252b5132 RH |
469 | |
470 | /* | |
471 | FUNCTION | |
472 | bfd_get_error | |
473 | ||
474 | SYNOPSIS | |
475 | bfd_error_type bfd_get_error (void); | |
476 | ||
477 | DESCRIPTION | |
478 | Return the current BFD error condition. | |
479 | */ | |
480 | ||
481 | bfd_error_type | |
c58b9523 | 482 | bfd_get_error (void) |
252b5132 RH |
483 | { |
484 | return bfd_error; | |
485 | } | |
486 | ||
487 | /* | |
488 | FUNCTION | |
489 | bfd_set_error | |
490 | ||
491 | SYNOPSIS | |
ffda70fc | 492 | void bfd_set_error (bfd_error_type error_tag, ...); |
252b5132 RH |
493 | |
494 | DESCRIPTION | |
495 | Set the BFD error condition to be @var{error_tag}. | |
ffda70fc AM |
496 | If @var{error_tag} is bfd_error_on_input, then this function |
497 | takes two more parameters, the input bfd where the error | |
498 | occurred, and the bfd_error_type error. | |
252b5132 RH |
499 | */ |
500 | ||
501 | void | |
ffda70fc | 502 | bfd_set_error (bfd_error_type error_tag, ...) |
252b5132 RH |
503 | { |
504 | bfd_error = error_tag; | |
ffda70fc AM |
505 | if (error_tag == bfd_error_on_input) |
506 | { | |
507 | /* This is an error that occurred during bfd_close when | |
508 | writing an archive, but on one of the input files. */ | |
509 | va_list ap; | |
510 | ||
511 | va_start (ap, error_tag); | |
512 | input_bfd = va_arg (ap, bfd *); | |
a50b1753 | 513 | input_error = (bfd_error_type) va_arg (ap, int); |
ffda70fc AM |
514 | if (input_error >= bfd_error_on_input) |
515 | abort (); | |
516 | va_end (ap); | |
517 | } | |
252b5132 RH |
518 | } |
519 | ||
520 | /* | |
521 | FUNCTION | |
522 | bfd_errmsg | |
523 | ||
524 | SYNOPSIS | |
55ab10f0 | 525 | const char *bfd_errmsg (bfd_error_type error_tag); |
252b5132 RH |
526 | |
527 | DESCRIPTION | |
528 | Return a string describing the error @var{error_tag}, or | |
529 | the system error if @var{error_tag} is <<bfd_error_system_call>>. | |
530 | */ | |
531 | ||
55ab10f0 | 532 | const char * |
c58b9523 | 533 | bfd_errmsg (bfd_error_type error_tag) |
252b5132 RH |
534 | { |
535 | #ifndef errno | |
536 | extern int errno; | |
537 | #endif | |
ffda70fc AM |
538 | if (error_tag == bfd_error_on_input) |
539 | { | |
540 | char *buf; | |
541 | const char *msg = bfd_errmsg (input_error); | |
542 | ||
543 | if (asprintf (&buf, _(bfd_errmsgs [error_tag]), input_bfd->filename, msg) | |
544 | != -1) | |
545 | return buf; | |
546 | ||
547 | /* Ick, what to do on out of memory? */ | |
548 | return msg; | |
549 | } | |
550 | ||
252b5132 RH |
551 | if (error_tag == bfd_error_system_call) |
552 | return xstrerror (errno); | |
553 | ||
c58b9523 AM |
554 | if (error_tag > bfd_error_invalid_error_code) |
555 | error_tag = bfd_error_invalid_error_code; /* sanity check */ | |
252b5132 | 556 | |
c58b9523 | 557 | return _(bfd_errmsgs [error_tag]); |
252b5132 RH |
558 | } |
559 | ||
560 | /* | |
561 | FUNCTION | |
562 | bfd_perror | |
563 | ||
564 | SYNOPSIS | |
55ab10f0 | 565 | void bfd_perror (const char *message); |
252b5132 RH |
566 | |
567 | DESCRIPTION | |
568 | Print to the standard error stream a string describing the | |
569 | last BFD error that occurred, or the last system error if | |
570 | the last BFD error was a system call failure. If @var{message} | |
571 | is non-NULL and non-empty, the error string printed is preceded | |
572 | by @var{message}, a colon, and a space. It is followed by a newline. | |
573 | */ | |
574 | ||
575 | void | |
c58b9523 | 576 | bfd_perror (const char *message) |
252b5132 | 577 | { |
4a97a0e5 | 578 | fflush (stdout); |
ffda70fc AM |
579 | if (message == NULL || *message == '\0') |
580 | fprintf (stderr, "%s\n", bfd_errmsg (bfd_get_error ())); | |
55ab10f0 | 581 | else |
ffda70fc | 582 | fprintf (stderr, "%s: %s\n", message, bfd_errmsg (bfd_get_error ())); |
4a97a0e5 | 583 | fflush (stderr); |
252b5132 RH |
584 | } |
585 | ||
586 | /* | |
587 | SUBSECTION | |
588 | BFD error handler | |
589 | ||
590 | Some BFD functions want to print messages describing the | |
591 | problem. They call a BFD error handler function. This | |
5c4491d3 | 592 | function may be overridden by the program. |
252b5132 RH |
593 | |
594 | The BFD error handler acts like printf. | |
595 | ||
596 | CODE_FRAGMENT | |
597 | . | |
c58b9523 | 598 | .typedef void (*bfd_error_handler_type) (const char *, ...); |
252b5132 RH |
599 | . |
600 | */ | |
601 | ||
602 | /* The program name used when printing BFD error messages. */ | |
603 | ||
604 | static const char *_bfd_error_program_name; | |
605 | ||
d003868e AM |
606 | /* This is the default routine to handle BFD error messages. |
607 | Like fprintf (stderr, ...), but also handles some extra format specifiers. | |
608 | ||
609 | %A section name from section. For group components, print group name too. | |
610 | %B file name from bfd. For archive components, prints archive too. | |
d07676f8 NC |
611 | |
612 | Note - because these two extra format specifiers require special handling | |
613 | they are scanned for and processed in this function, before calling | |
614 | vfprintf. This means that the *arguments* for these format specifiers | |
615 | must be the first ones in the variable argument list, regardless of where | |
616 | the specifiers appear in the format string. Thus for example calling | |
617 | this function with a format string of: | |
618 | ||
619 | "blah %s blah %A blah %d blah %B" | |
620 | ||
621 | would involve passing the arguments as: | |
622 | ||
623 | "blah %s blah %A blah %d blah %B", | |
624 | asection_for_the_%A, | |
625 | bfd_for_the_%B, | |
626 | string_for_the_%s, | |
627 | integer_for_the_%d); | |
d003868e | 628 | */ |
252b5132 | 629 | |
185d09ad | 630 | void |
d003868e | 631 | _bfd_default_error_handler (const char *fmt, ...) |
252b5132 | 632 | { |
d003868e AM |
633 | va_list ap; |
634 | char *bufp; | |
635 | const char *new_fmt, *p; | |
636 | size_t avail = 1000; | |
637 | char buf[1000]; | |
c58b9523 | 638 | |
0bc43230 AM |
639 | /* PR 4992: Don't interrupt output being sent to stdout. */ |
640 | fflush (stdout); | |
641 | ||
252b5132 RH |
642 | if (_bfd_error_program_name != NULL) |
643 | fprintf (stderr, "%s: ", _bfd_error_program_name); | |
644 | else | |
645 | fprintf (stderr, "BFD: "); | |
646 | ||
d003868e AM |
647 | va_start (ap, fmt); |
648 | new_fmt = fmt; | |
649 | bufp = buf; | |
650 | ||
651 | /* Reserve enough space for the existing format string. */ | |
652 | avail -= strlen (fmt) + 1; | |
653 | if (avail > 1000) | |
3168356f | 654 | _exit (EXIT_FAILURE); |
d003868e AM |
655 | |
656 | p = fmt; | |
3e540f25 | 657 | while (1) |
d003868e AM |
658 | { |
659 | char *q; | |
660 | size_t len, extra, trim; | |
661 | ||
662 | p = strchr (p, '%'); | |
663 | if (p == NULL || p[1] == '\0') | |
664 | { | |
665 | if (new_fmt == buf) | |
666 | { | |
667 | len = strlen (fmt); | |
668 | memcpy (bufp, fmt, len + 1); | |
669 | } | |
670 | break; | |
671 | } | |
672 | ||
673 | if (p[1] == 'A' || p[1] == 'B') | |
674 | { | |
675 | len = p - fmt; | |
676 | memcpy (bufp, fmt, len); | |
677 | bufp += len; | |
678 | fmt = p + 2; | |
679 | new_fmt = buf; | |
680 | ||
681 | /* If we run out of space, tough, you lose your ridiculously | |
682 | long file or section name. It's not safe to try to alloc | |
683 | memory here; We might be printing an out of memory message. */ | |
684 | if (avail == 0) | |
685 | { | |
686 | *bufp++ = '*'; | |
687 | *bufp++ = '*'; | |
688 | *bufp = '\0'; | |
689 | } | |
690 | else | |
691 | { | |
692 | if (p[1] == 'B') | |
693 | { | |
694 | bfd *abfd = va_arg (ap, bfd *); | |
d07676f8 NC |
695 | |
696 | if (abfd == NULL) | |
697 | /* Invoking %B with a null bfd pointer is an internal error. */ | |
698 | abort (); | |
699 | else if (abfd->my_archive) | |
d003868e AM |
700 | snprintf (bufp, avail, "%s(%s)", |
701 | abfd->my_archive->filename, abfd->filename); | |
702 | else | |
703 | snprintf (bufp, avail, "%s", abfd->filename); | |
704 | } | |
705 | else | |
706 | { | |
707 | asection *sec = va_arg (ap, asection *); | |
d07676f8 | 708 | bfd *abfd; |
d003868e AM |
709 | const char *group = NULL; |
710 | struct coff_comdat_info *ci; | |
711 | ||
d07676f8 NC |
712 | if (sec == NULL) |
713 | /* Invoking %A with a null section pointer is an internal error. */ | |
714 | abort (); | |
715 | abfd = sec->owner; | |
d003868e AM |
716 | if (abfd != NULL |
717 | && bfd_get_flavour (abfd) == bfd_target_elf_flavour | |
718 | && elf_next_in_group (sec) != NULL | |
719 | && (sec->flags & SEC_GROUP) == 0) | |
720 | group = elf_group_name (sec); | |
721 | else if (abfd != NULL | |
722 | && bfd_get_flavour (abfd) == bfd_target_coff_flavour | |
723 | && (ci = bfd_coff_get_comdat_section (sec->owner, | |
724 | sec)) != NULL) | |
725 | group = ci->name; | |
726 | if (group != NULL) | |
727 | snprintf (bufp, avail, "%s[%s]", sec->name, group); | |
728 | else | |
729 | snprintf (bufp, avail, "%s", sec->name); | |
730 | } | |
731 | len = strlen (bufp); | |
732 | avail = avail - len + 2; | |
733 | ||
734 | /* We need to replace any '%' we printed by "%%". | |
735 | First count how many. */ | |
736 | q = bufp; | |
737 | bufp += len; | |
738 | extra = 0; | |
739 | while ((q = strchr (q, '%')) != NULL) | |
740 | { | |
741 | ++q; | |
742 | ++extra; | |
743 | } | |
744 | ||
745 | /* If there isn't room, trim off the end of the string. */ | |
746 | q = bufp; | |
747 | bufp += extra; | |
748 | if (extra > avail) | |
749 | { | |
750 | trim = extra - avail; | |
751 | bufp -= trim; | |
752 | do | |
753 | { | |
754 | if (*--q == '%') | |
755 | --extra; | |
756 | } | |
757 | while (--trim != 0); | |
758 | *q = '\0'; | |
45fc9e4a | 759 | avail = extra; |
d003868e | 760 | } |
45fc9e4a | 761 | avail -= extra; |
d003868e AM |
762 | |
763 | /* Now double all '%' chars, shuffling the string as we go. */ | |
764 | while (extra != 0) | |
765 | { | |
766 | while ((q[extra] = *q) != '%') | |
767 | --q; | |
768 | q[--extra] = '%'; | |
769 | --q; | |
770 | } | |
771 | } | |
772 | } | |
773 | p = p + 2; | |
774 | } | |
775 | ||
776 | vfprintf (stderr, new_fmt, ap); | |
777 | va_end (ap); | |
252b5132 | 778 | |
ceae87f3 JB |
779 | /* On AIX, putc is implemented as a macro that triggers a -Wunused-value |
780 | warning, so use the fputc function to avoid it. */ | |
781 | fputc ('\n', stderr); | |
4a97a0e5 | 782 | fflush (stderr); |
252b5132 RH |
783 | } |
784 | ||
252b5132 RH |
785 | /* This is a function pointer to the routine which should handle BFD |
786 | error messages. It is called when a BFD routine encounters an | |
787 | error for which it wants to print a message. Going through a | |
788 | function pointer permits a program linked against BFD to intercept | |
789 | the messages and deal with them itself. */ | |
790 | ||
791 | bfd_error_handler_type _bfd_error_handler = _bfd_default_error_handler; | |
792 | ||
793 | /* | |
794 | FUNCTION | |
795 | bfd_set_error_handler | |
796 | ||
797 | SYNOPSIS | |
798 | bfd_error_handler_type bfd_set_error_handler (bfd_error_handler_type); | |
799 | ||
800 | DESCRIPTION | |
801 | Set the BFD error handler function. Returns the previous | |
802 | function. | |
803 | */ | |
804 | ||
805 | bfd_error_handler_type | |
c58b9523 | 806 | bfd_set_error_handler (bfd_error_handler_type pnew) |
252b5132 RH |
807 | { |
808 | bfd_error_handler_type pold; | |
809 | ||
810 | pold = _bfd_error_handler; | |
811 | _bfd_error_handler = pnew; | |
812 | return pold; | |
813 | } | |
814 | ||
815 | /* | |
816 | FUNCTION | |
817 | bfd_set_error_program_name | |
818 | ||
819 | SYNOPSIS | |
820 | void bfd_set_error_program_name (const char *); | |
821 | ||
822 | DESCRIPTION | |
823 | Set the program name to use when printing a BFD error. This | |
824 | is printed before the error message followed by a colon and | |
825 | space. The string must not be changed after it is passed to | |
826 | this function. | |
827 | */ | |
828 | ||
829 | void | |
c58b9523 | 830 | bfd_set_error_program_name (const char *name) |
252b5132 RH |
831 | { |
832 | _bfd_error_program_name = name; | |
833 | } | |
834 | ||
252b5132 RH |
835 | /* |
836 | FUNCTION | |
837 | bfd_get_error_handler | |
838 | ||
839 | SYNOPSIS | |
840 | bfd_error_handler_type bfd_get_error_handler (void); | |
841 | ||
842 | DESCRIPTION | |
843 | Return the BFD error handler function. | |
844 | */ | |
845 | ||
846 | bfd_error_handler_type | |
c58b9523 | 847 | bfd_get_error_handler (void) |
252b5132 RH |
848 | { |
849 | return _bfd_error_handler; | |
850 | } | |
2b56b3f3 HPN |
851 | |
852 | /* | |
853 | SUBSECTION | |
854 | BFD assert handler | |
855 | ||
856 | If BFD finds an internal inconsistency, the bfd assert | |
857 | handler is called with information on the BFD version, BFD | |
858 | source file and line. If this happens, most programs linked | |
859 | against BFD are expected to want to exit with an error, or mark | |
860 | the current BFD operation as failed, so it is recommended to | |
861 | override the default handler, which just calls | |
862 | _bfd_error_handler and continues. | |
863 | ||
864 | CODE_FRAGMENT | |
865 | . | |
866 | .typedef void (*bfd_assert_handler_type) (const char *bfd_formatmsg, | |
867 | . const char *bfd_version, | |
868 | . const char *bfd_file, | |
869 | . int bfd_line); | |
870 | . | |
871 | */ | |
872 | ||
873 | /* Note the use of bfd_ prefix on the parameter names above: we want to | |
874 | show which one is the message and which is the version by naming the | |
875 | parameters, but avoid polluting the program-using-bfd namespace as | |
876 | the typedef is visible in the exported headers that the program | |
877 | includes. Below, it's just for consistency. */ | |
878 | ||
879 | static void | |
880 | _bfd_default_assert_handler (const char *bfd_formatmsg, | |
881 | const char *bfd_version, | |
882 | const char *bfd_file, | |
883 | int bfd_line) | |
884 | ||
885 | { | |
886 | (*_bfd_error_handler) (bfd_formatmsg, bfd_version, bfd_file, bfd_line); | |
887 | } | |
888 | ||
889 | /* Similar to _bfd_error_handler, a program can decide to exit on an | |
890 | internal BFD error. We use a non-variadic type to simplify passing | |
891 | on parameters to other functions, e.g. _bfd_error_handler. */ | |
892 | ||
893 | bfd_assert_handler_type _bfd_assert_handler = _bfd_default_assert_handler; | |
894 | ||
895 | /* | |
896 | FUNCTION | |
897 | bfd_set_assert_handler | |
898 | ||
899 | SYNOPSIS | |
900 | bfd_assert_handler_type bfd_set_assert_handler (bfd_assert_handler_type); | |
901 | ||
902 | DESCRIPTION | |
903 | Set the BFD assert handler function. Returns the previous | |
904 | function. | |
905 | */ | |
906 | ||
907 | bfd_assert_handler_type | |
908 | bfd_set_assert_handler (bfd_assert_handler_type pnew) | |
909 | { | |
910 | bfd_assert_handler_type pold; | |
911 | ||
912 | pold = _bfd_assert_handler; | |
913 | _bfd_assert_handler = pnew; | |
914 | return pold; | |
915 | } | |
916 | ||
917 | /* | |
918 | FUNCTION | |
919 | bfd_get_assert_handler | |
920 | ||
921 | SYNOPSIS | |
922 | bfd_assert_handler_type bfd_get_assert_handler (void); | |
923 | ||
924 | DESCRIPTION | |
925 | Return the BFD assert handler function. | |
926 | */ | |
927 | ||
928 | bfd_assert_handler_type | |
929 | bfd_get_assert_handler (void) | |
930 | { | |
931 | return _bfd_assert_handler; | |
932 | } | |
252b5132 RH |
933 | \f |
934 | /* | |
79bb5c23 NC |
935 | INODE |
936 | Miscellaneous, Memory Usage, Error reporting, BFD front end | |
937 | ||
252b5132 | 938 | SECTION |
1b74d094 BW |
939 | Miscellaneous |
940 | ||
941 | SUBSECTION | |
942 | Miscellaneous functions | |
252b5132 RH |
943 | */ |
944 | ||
945 | /* | |
946 | FUNCTION | |
947 | bfd_get_reloc_upper_bound | |
948 | ||
949 | SYNOPSIS | |
ed781d5d | 950 | long bfd_get_reloc_upper_bound (bfd *abfd, asection *sect); |
252b5132 RH |
951 | |
952 | DESCRIPTION | |
953 | Return the number of bytes required to store the | |
954 | relocation information associated with section @var{sect} | |
955 | attached to bfd @var{abfd}. If an error occurs, return -1. | |
956 | ||
957 | */ | |
958 | ||
252b5132 | 959 | long |
c58b9523 | 960 | bfd_get_reloc_upper_bound (bfd *abfd, sec_ptr asect) |
252b5132 | 961 | { |
55ab10f0 NC |
962 | if (abfd->format != bfd_object) |
963 | { | |
964 | bfd_set_error (bfd_error_invalid_operation); | |
965 | return -1; | |
966 | } | |
252b5132 RH |
967 | |
968 | return BFD_SEND (abfd, _get_reloc_upper_bound, (abfd, asect)); | |
969 | } | |
970 | ||
971 | /* | |
972 | FUNCTION | |
973 | bfd_canonicalize_reloc | |
974 | ||
975 | SYNOPSIS | |
976 | long bfd_canonicalize_reloc | |
c58b9523 | 977 | (bfd *abfd, asection *sec, arelent **loc, asymbol **syms); |
252b5132 RH |
978 | |
979 | DESCRIPTION | |
980 | Call the back end associated with the open BFD | |
981 | @var{abfd} and translate the external form of the relocation | |
982 | information attached to @var{sec} into the internal canonical | |
983 | form. Place the table into memory at @var{loc}, which has | |
984 | been preallocated, usually by a call to | |
985 | <<bfd_get_reloc_upper_bound>>. Returns the number of relocs, or | |
986 | -1 on error. | |
987 | ||
988 | The @var{syms} table is also needed for horrible internal magic | |
989 | reasons. | |
990 | ||
252b5132 RH |
991 | */ |
992 | long | |
c58b9523 AM |
993 | bfd_canonicalize_reloc (bfd *abfd, |
994 | sec_ptr asect, | |
995 | arelent **location, | |
996 | asymbol **symbols) | |
252b5132 | 997 | { |
55ab10f0 NC |
998 | if (abfd->format != bfd_object) |
999 | { | |
1000 | bfd_set_error (bfd_error_invalid_operation); | |
1001 | return -1; | |
1002 | } | |
1003 | ||
252b5132 RH |
1004 | return BFD_SEND (abfd, _bfd_canonicalize_reloc, |
1005 | (abfd, asect, location, symbols)); | |
1006 | } | |
1007 | ||
1008 | /* | |
1009 | FUNCTION | |
1010 | bfd_set_reloc | |
1011 | ||
1012 | SYNOPSIS | |
1013 | void bfd_set_reloc | |
b5f79c76 | 1014 | (bfd *abfd, asection *sec, arelent **rel, unsigned int count); |
252b5132 RH |
1015 | |
1016 | DESCRIPTION | |
1017 | Set the relocation pointer and count within | |
1018 | section @var{sec} to the values @var{rel} and @var{count}. | |
1019 | The argument @var{abfd} is ignored. | |
1020 | ||
1021 | */ | |
aebad5fe | 1022 | |
252b5132 | 1023 | void |
c58b9523 AM |
1024 | bfd_set_reloc (bfd *ignore_abfd ATTRIBUTE_UNUSED, |
1025 | sec_ptr asect, | |
1026 | arelent **location, | |
1027 | unsigned int count) | |
252b5132 RH |
1028 | { |
1029 | asect->orelocation = location; | |
1030 | asect->reloc_count = count; | |
1031 | } | |
1032 | ||
1033 | /* | |
1034 | FUNCTION | |
1035 | bfd_set_file_flags | |
1036 | ||
1037 | SYNOPSIS | |
ed781d5d | 1038 | bfd_boolean bfd_set_file_flags (bfd *abfd, flagword flags); |
252b5132 RH |
1039 | |
1040 | DESCRIPTION | |
1041 | Set the flag word in the BFD @var{abfd} to the value @var{flags}. | |
1042 | ||
1043 | Possible errors are: | |
1044 | o <<bfd_error_wrong_format>> - The target bfd was not of object format. | |
1045 | o <<bfd_error_invalid_operation>> - The target bfd was open for reading. | |
1046 | o <<bfd_error_invalid_operation>> - | |
1047 | The flag word contained a bit which was not applicable to the | |
1048 | type of file. E.g., an attempt was made to set the <<D_PAGED>> bit | |
1049 | on a BFD format which does not support demand paging. | |
1050 | ||
1051 | */ | |
1052 | ||
b34976b6 | 1053 | bfd_boolean |
c58b9523 | 1054 | bfd_set_file_flags (bfd *abfd, flagword flags) |
252b5132 | 1055 | { |
55ab10f0 NC |
1056 | if (abfd->format != bfd_object) |
1057 | { | |
1058 | bfd_set_error (bfd_error_wrong_format); | |
b34976b6 | 1059 | return FALSE; |
55ab10f0 | 1060 | } |
252b5132 | 1061 | |
55ab10f0 NC |
1062 | if (bfd_read_p (abfd)) |
1063 | { | |
1064 | bfd_set_error (bfd_error_invalid_operation); | |
b34976b6 | 1065 | return FALSE; |
55ab10f0 | 1066 | } |
252b5132 RH |
1067 | |
1068 | bfd_get_file_flags (abfd) = flags; | |
55ab10f0 NC |
1069 | if ((flags & bfd_applicable_file_flags (abfd)) != flags) |
1070 | { | |
1071 | bfd_set_error (bfd_error_invalid_operation); | |
b34976b6 | 1072 | return FALSE; |
55ab10f0 | 1073 | } |
252b5132 | 1074 | |
b34976b6 | 1075 | return TRUE; |
252b5132 RH |
1076 | } |
1077 | ||
1078 | void | |
c58b9523 | 1079 | bfd_assert (const char *file, int line) |
252b5132 | 1080 | { |
2b56b3f3 HPN |
1081 | (*_bfd_assert_handler) (_("BFD %s assertion fail %s:%d"), |
1082 | BFD_VERSION_STRING, file, line); | |
252b5132 RH |
1083 | } |
1084 | ||
c0bed66d ILT |
1085 | /* A more or less friendly abort message. In libbfd.h abort is |
1086 | defined to call this function. */ | |
1087 | ||
c0bed66d | 1088 | void |
c58b9523 | 1089 | _bfd_abort (const char *file, int line, const char *fn) |
c0bed66d ILT |
1090 | { |
1091 | if (fn != NULL) | |
1092 | (*_bfd_error_handler) | |
7ac01895 | 1093 | (_("BFD %s internal error, aborting at %s:%d in %s\n"), |
aec2f561 | 1094 | BFD_VERSION_STRING, file, line, fn); |
c0bed66d ILT |
1095 | else |
1096 | (*_bfd_error_handler) | |
7ac01895 | 1097 | (_("BFD %s internal error, aborting at %s:%d\n"), |
aec2f561 | 1098 | BFD_VERSION_STRING, file, line); |
c0bed66d | 1099 | (*_bfd_error_handler) (_("Please report this bug.\n")); |
3168356f | 1100 | _exit (EXIT_FAILURE); |
c0bed66d | 1101 | } |
252b5132 | 1102 | |
125c4a69 NC |
1103 | /* |
1104 | FUNCTION | |
1105 | bfd_get_arch_size | |
1106 | ||
1107 | SYNOPSIS | |
1108 | int bfd_get_arch_size (bfd *abfd); | |
1109 | ||
1110 | DESCRIPTION | |
4ef27e04 TG |
1111 | Returns the normalized architecture address size, in bits, as |
1112 | determined by the object file's format. By normalized, we mean | |
1113 | either 32 or 64. For ELF, this information is included in the | |
1114 | header. Use bfd_arch_bits_per_address for number of bits in | |
1115 | the architecture address. | |
125c4a69 NC |
1116 | |
1117 | RETURNS | |
1118 | Returns the arch size in bits if known, <<-1>> otherwise. | |
1119 | */ | |
1120 | ||
1121 | int | |
c58b9523 | 1122 | bfd_get_arch_size (bfd *abfd) |
125c4a69 NC |
1123 | { |
1124 | if (abfd->xvec->flavour == bfd_target_elf_flavour) | |
c58b9523 | 1125 | return get_elf_backend_data (abfd)->s->arch_size; |
125c4a69 | 1126 | |
4ef27e04 | 1127 | return bfd_arch_bits_per_address (abfd) > 32 ? 64 : 32; |
125c4a69 NC |
1128 | } |
1129 | ||
1130 | /* | |
1131 | FUNCTION | |
1132 | bfd_get_sign_extend_vma | |
1133 | ||
1134 | SYNOPSIS | |
1135 | int bfd_get_sign_extend_vma (bfd *abfd); | |
1136 | ||
1137 | DESCRIPTION | |
1138 | Indicates if the target architecture "naturally" sign extends | |
1139 | an address. Some architectures implicitly sign extend address | |
1140 | values when they are converted to types larger than the size | |
1141 | of an address. For instance, bfd_get_start_address() will | |
1142 | return an address sign extended to fill a bfd_vma when this is | |
1143 | the case. | |
1144 | ||
1145 | RETURNS | |
1146 | Returns <<1>> if the target architecture is known to sign | |
1147 | extend addresses, <<0>> if the target architecture is known to | |
1148 | not sign extend addresses, and <<-1>> otherwise. | |
1149 | */ | |
1150 | ||
1151 | int | |
c58b9523 | 1152 | bfd_get_sign_extend_vma (bfd *abfd) |
125c4a69 | 1153 | { |
f47e5071 NC |
1154 | char *name; |
1155 | ||
125c4a69 | 1156 | if (bfd_get_flavour (abfd) == bfd_target_elf_flavour) |
c58b9523 | 1157 | return get_elf_backend_data (abfd)->sign_extend_vma; |
125c4a69 | 1158 | |
f47e5071 NC |
1159 | name = bfd_get_target (abfd); |
1160 | ||
7148cc28 | 1161 | /* Return a proper value for DJGPP & PE COFF. |
f47e5071 NC |
1162 | This function is required for DWARF2 support, but there is |
1163 | no place to store this information in the COFF back end. | |
1164 | Should enough other COFF targets add support for DWARF2, | |
1165 | a place will have to be found. Until then, this hack will do. */ | |
0112cd26 | 1166 | if (CONST_STRNEQ (name, "coff-go32") |
8a7140c3 | 1167 | || strcmp (name, "pe-i386") == 0 |
f0927246 | 1168 | || strcmp (name, "pei-i386") == 0 |
6e3d6dc1 NC |
1169 | || strcmp (name, "pe-x86-64") == 0 |
1170 | || strcmp (name, "pei-x86-64") == 0 | |
7148cc28 | 1171 | || strcmp (name, "pe-arm-wince-little") == 0 |
8076289e TG |
1172 | || strcmp (name, "pei-arm-wince-little") == 0 |
1173 | || strcmp (name, "aixcoff-rs6000") == 0) | |
f47e5071 NC |
1174 | return 1; |
1175 | ||
09c6f846 TG |
1176 | if (CONST_STRNEQ (name, "mach-o")) |
1177 | return 0; | |
1178 | ||
a022216b | 1179 | bfd_set_error (bfd_error_wrong_format); |
125c4a69 NC |
1180 | return -1; |
1181 | } | |
1182 | ||
252b5132 RH |
1183 | /* |
1184 | FUNCTION | |
1185 | bfd_set_start_address | |
1186 | ||
1187 | SYNOPSIS | |
ed781d5d | 1188 | bfd_boolean bfd_set_start_address (bfd *abfd, bfd_vma vma); |
252b5132 RH |
1189 | |
1190 | DESCRIPTION | |
1191 | Make @var{vma} the entry point of output BFD @var{abfd}. | |
1192 | ||
1193 | RETURNS | |
b34976b6 | 1194 | Returns <<TRUE>> on success, <<FALSE>> otherwise. |
252b5132 RH |
1195 | */ |
1196 | ||
b34976b6 | 1197 | bfd_boolean |
c58b9523 | 1198 | bfd_set_start_address (bfd *abfd, bfd_vma vma) |
252b5132 RH |
1199 | { |
1200 | abfd->start_address = vma; | |
b34976b6 | 1201 | return TRUE; |
252b5132 RH |
1202 | } |
1203 | ||
252b5132 RH |
1204 | /* |
1205 | FUNCTION | |
1206 | bfd_get_gp_size | |
1207 | ||
1208 | SYNOPSIS | |
ed781d5d | 1209 | unsigned int bfd_get_gp_size (bfd *abfd); |
252b5132 RH |
1210 | |
1211 | DESCRIPTION | |
1212 | Return the maximum size of objects to be optimized using the GP | |
1213 | register under MIPS ECOFF. This is typically set by the <<-G>> | |
1214 | argument to the compiler, assembler or linker. | |
1215 | */ | |
1216 | ||
c0846b23 | 1217 | unsigned int |
c58b9523 | 1218 | bfd_get_gp_size (bfd *abfd) |
252b5132 RH |
1219 | { |
1220 | if (abfd->format == bfd_object) | |
1221 | { | |
1222 | if (abfd->xvec->flavour == bfd_target_ecoff_flavour) | |
1223 | return ecoff_data (abfd)->gp_size; | |
1224 | else if (abfd->xvec->flavour == bfd_target_elf_flavour) | |
1225 | return elf_gp_size (abfd); | |
1226 | } | |
1227 | return 0; | |
1228 | } | |
1229 | ||
1230 | /* | |
1231 | FUNCTION | |
1232 | bfd_set_gp_size | |
1233 | ||
1234 | SYNOPSIS | |
ed781d5d | 1235 | void bfd_set_gp_size (bfd *abfd, unsigned int i); |
252b5132 RH |
1236 | |
1237 | DESCRIPTION | |
1238 | Set the maximum size of objects to be optimized using the GP | |
1239 | register under ECOFF or MIPS ELF. This is typically set by | |
1240 | the <<-G>> argument to the compiler, assembler or linker. | |
1241 | */ | |
1242 | ||
1243 | void | |
c58b9523 | 1244 | bfd_set_gp_size (bfd *abfd, unsigned int i) |
252b5132 | 1245 | { |
55ab10f0 | 1246 | /* Don't try to set GP size on an archive or core file! */ |
252b5132 RH |
1247 | if (abfd->format != bfd_object) |
1248 | return; | |
55ab10f0 | 1249 | |
252b5132 RH |
1250 | if (abfd->xvec->flavour == bfd_target_ecoff_flavour) |
1251 | ecoff_data (abfd)->gp_size = i; | |
1252 | else if (abfd->xvec->flavour == bfd_target_elf_flavour) | |
1253 | elf_gp_size (abfd) = i; | |
1254 | } | |
1255 | ||
1256 | /* Get the GP value. This is an internal function used by some of the | |
1257 | relocation special_function routines on targets which support a GP | |
1258 | register. */ | |
1259 | ||
1260 | bfd_vma | |
c58b9523 | 1261 | _bfd_get_gp_value (bfd *abfd) |
252b5132 | 1262 | { |
9bcf4de0 TS |
1263 | if (! abfd) |
1264 | return 0; | |
55ab10f0 NC |
1265 | if (abfd->format != bfd_object) |
1266 | return 0; | |
1267 | ||
1268 | if (abfd->xvec->flavour == bfd_target_ecoff_flavour) | |
1269 | return ecoff_data (abfd)->gp; | |
1270 | else if (abfd->xvec->flavour == bfd_target_elf_flavour) | |
1271 | return elf_gp (abfd); | |
1272 | ||
252b5132 RH |
1273 | return 0; |
1274 | } | |
1275 | ||
1276 | /* Set the GP value. */ | |
1277 | ||
1278 | void | |
c58b9523 | 1279 | _bfd_set_gp_value (bfd *abfd, bfd_vma v) |
252b5132 | 1280 | { |
9bcf4de0 | 1281 | if (! abfd) |
c2c96631 | 1282 | abort (); |
252b5132 RH |
1283 | if (abfd->format != bfd_object) |
1284 | return; | |
55ab10f0 | 1285 | |
252b5132 RH |
1286 | if (abfd->xvec->flavour == bfd_target_ecoff_flavour) |
1287 | ecoff_data (abfd)->gp = v; | |
1288 | else if (abfd->xvec->flavour == bfd_target_elf_flavour) | |
1289 | elf_gp (abfd) = v; | |
1290 | } | |
1291 | ||
1292 | /* | |
1293 | FUNCTION | |
1294 | bfd_scan_vma | |
1295 | ||
1296 | SYNOPSIS | |
ed781d5d | 1297 | bfd_vma bfd_scan_vma (const char *string, const char **end, int base); |
252b5132 RH |
1298 | |
1299 | DESCRIPTION | |
1300 | Convert, like <<strtoul>>, a numerical expression | |
1301 | @var{string} into a <<bfd_vma>> integer, and return that integer. | |
1302 | (Though without as many bells and whistles as <<strtoul>>.) | |
1303 | The expression is assumed to be unsigned (i.e., positive). | |
1304 | If given a @var{base}, it is used as the base for conversion. | |
1305 | A base of 0 causes the function to interpret the string | |
1306 | in hex if a leading "0x" or "0X" is found, otherwise | |
1307 | in octal if a leading zero is found, otherwise in decimal. | |
1308 | ||
88eaccc2 AM |
1309 | If the value would overflow, the maximum <<bfd_vma>> value is |
1310 | returned. | |
252b5132 RH |
1311 | */ |
1312 | ||
1313 | bfd_vma | |
c58b9523 | 1314 | bfd_scan_vma (const char *string, const char **end, int base) |
252b5132 RH |
1315 | { |
1316 | bfd_vma value; | |
88eaccc2 AM |
1317 | bfd_vma cutoff; |
1318 | unsigned int cutlim; | |
1319 | int overflow; | |
252b5132 RH |
1320 | |
1321 | /* Let the host do it if possible. */ | |
eb6e10cb | 1322 | if (sizeof (bfd_vma) <= sizeof (unsigned long)) |
c58b9523 | 1323 | return strtoul (string, (char **) end, base); |
252b5132 | 1324 | |
49c97a80 ILT |
1325 | #ifdef HAVE_STRTOULL |
1326 | if (sizeof (bfd_vma) <= sizeof (unsigned long long)) | |
1327 | return strtoull (string, (char **) end, base); | |
1328 | #endif | |
1329 | ||
252b5132 RH |
1330 | if (base == 0) |
1331 | { | |
1332 | if (string[0] == '0') | |
1333 | { | |
1334 | if ((string[1] == 'x') || (string[1] == 'X')) | |
1335 | base = 16; | |
252b5132 RH |
1336 | else |
1337 | base = 8; | |
1338 | } | |
252b5132 | 1339 | } |
55ab10f0 | 1340 | |
88eaccc2 AM |
1341 | if ((base < 2) || (base > 36)) |
1342 | base = 10; | |
1343 | ||
1344 | if (base == 16 | |
1345 | && string[0] == '0' | |
1346 | && (string[1] == 'x' || string[1] == 'X') | |
1347 | && ISXDIGIT (string[2])) | |
1348 | { | |
1349 | string += 2; | |
1350 | } | |
aebad5fe | 1351 | |
88eaccc2 AM |
1352 | cutoff = (~ (bfd_vma) 0) / (bfd_vma) base; |
1353 | cutlim = (~ (bfd_vma) 0) % (bfd_vma) base; | |
1354 | value = 0; | |
1355 | overflow = 0; | |
1356 | while (1) | |
1357 | { | |
1358 | unsigned int digit; | |
1359 | ||
1360 | digit = *string; | |
1361 | if (ISDIGIT (digit)) | |
1362 | digit = digit - '0'; | |
1363 | else if (ISALPHA (digit)) | |
1364 | digit = TOUPPER (digit) - 'A' + 10; | |
1365 | else | |
1366 | break; | |
1367 | if (digit >= (unsigned int) base) | |
1368 | break; | |
1369 | if (value > cutoff || (value == cutoff && digit > cutlim)) | |
1370 | overflow = 1; | |
1371 | value = value * base + digit; | |
1372 | ++string; | |
1373 | } | |
252b5132 | 1374 | |
88eaccc2 AM |
1375 | if (overflow) |
1376 | value = ~ (bfd_vma) 0; | |
252b5132 | 1377 | |
88eaccc2 AM |
1378 | if (end != NULL) |
1379 | *end = string; | |
252b5132 RH |
1380 | |
1381 | return value; | |
1382 | } | |
1383 | ||
80fccad2 BW |
1384 | /* |
1385 | FUNCTION | |
1386 | bfd_copy_private_header_data | |
1387 | ||
1388 | SYNOPSIS | |
1389 | bfd_boolean bfd_copy_private_header_data (bfd *ibfd, bfd *obfd); | |
1390 | ||
1391 | DESCRIPTION | |
1392 | Copy private BFD header information from the BFD @var{ibfd} to the | |
1393 | the BFD @var{obfd}. This copies information that may require | |
1394 | sections to exist, but does not require symbol tables. Return | |
1395 | <<true>> on success, <<false>> on error. | |
1396 | Possible error returns are: | |
1397 | ||
1398 | o <<bfd_error_no_memory>> - | |
1399 | Not enough memory exists to create private data for @var{obfd}. | |
1400 | ||
1401 | .#define bfd_copy_private_header_data(ibfd, obfd) \ | |
1402 | . BFD_SEND (obfd, _bfd_copy_private_header_data, \ | |
1403 | . (ibfd, obfd)) | |
1404 | ||
1405 | */ | |
1406 | ||
252b5132 RH |
1407 | /* |
1408 | FUNCTION | |
1409 | bfd_copy_private_bfd_data | |
1410 | ||
1411 | SYNOPSIS | |
ed781d5d | 1412 | bfd_boolean bfd_copy_private_bfd_data (bfd *ibfd, bfd *obfd); |
252b5132 RH |
1413 | |
1414 | DESCRIPTION | |
aebad5fe | 1415 | Copy private BFD information from the BFD @var{ibfd} to the |
b34976b6 | 1416 | the BFD @var{obfd}. Return <<TRUE>> on success, <<FALSE>> on error. |
252b5132 RH |
1417 | Possible error returns are: |
1418 | ||
1419 | o <<bfd_error_no_memory>> - | |
1420 | Not enough memory exists to create private data for @var{obfd}. | |
1421 | ||
1422 | .#define bfd_copy_private_bfd_data(ibfd, obfd) \ | |
1423 | . BFD_SEND (obfd, _bfd_copy_private_bfd_data, \ | |
1424 | . (ibfd, obfd)) | |
1425 | ||
1426 | */ | |
1427 | ||
1428 | /* | |
1429 | FUNCTION | |
1430 | bfd_merge_private_bfd_data | |
1431 | ||
1432 | SYNOPSIS | |
ed781d5d | 1433 | bfd_boolean bfd_merge_private_bfd_data (bfd *ibfd, bfd *obfd); |
252b5132 RH |
1434 | |
1435 | DESCRIPTION | |
aebad5fe | 1436 | Merge private BFD information from the BFD @var{ibfd} to the |
b34976b6 AM |
1437 | the output file BFD @var{obfd} when linking. Return <<TRUE>> |
1438 | on success, <<FALSE>> on error. Possible error returns are: | |
252b5132 RH |
1439 | |
1440 | o <<bfd_error_no_memory>> - | |
1441 | Not enough memory exists to create private data for @var{obfd}. | |
1442 | ||
1443 | .#define bfd_merge_private_bfd_data(ibfd, obfd) \ | |
1444 | . BFD_SEND (obfd, _bfd_merge_private_bfd_data, \ | |
1445 | . (ibfd, obfd)) | |
1446 | ||
1447 | */ | |
1448 | ||
1449 | /* | |
1450 | FUNCTION | |
1451 | bfd_set_private_flags | |
1452 | ||
1453 | SYNOPSIS | |
ed781d5d | 1454 | bfd_boolean bfd_set_private_flags (bfd *abfd, flagword flags); |
252b5132 RH |
1455 | |
1456 | DESCRIPTION | |
1457 | Set private BFD flag information in the BFD @var{abfd}. | |
b34976b6 | 1458 | Return <<TRUE>> on success, <<FALSE>> on error. Possible error |
252b5132 RH |
1459 | returns are: |
1460 | ||
1461 | o <<bfd_error_no_memory>> - | |
1462 | Not enough memory exists to create private data for @var{obfd}. | |
1463 | ||
1464 | .#define bfd_set_private_flags(abfd, flags) \ | |
ed781d5d | 1465 | . BFD_SEND (abfd, _bfd_set_private_flags, (abfd, flags)) |
252b5132 RH |
1466 | |
1467 | */ | |
1468 | ||
1469 | /* | |
1470 | FUNCTION | |
ed781d5d | 1471 | Other functions |
252b5132 RH |
1472 | |
1473 | DESCRIPTION | |
ed781d5d | 1474 | The following functions exist but have not yet been documented. |
252b5132 | 1475 | |
a6b96beb AM |
1476 | .#define bfd_sizeof_headers(abfd, info) \ |
1477 | . BFD_SEND (abfd, _bfd_sizeof_headers, (abfd, info)) | |
252b5132 RH |
1478 | . |
1479 | .#define bfd_find_nearest_line(abfd, sec, syms, off, file, func, line) \ | |
ed781d5d | 1480 | . BFD_SEND (abfd, _bfd_find_nearest_line, \ |
fb167eb2 | 1481 | . (abfd, syms, sec, off, file, func, line, NULL)) |
252b5132 | 1482 | . |
9b8d1a36 CC |
1483 | .#define bfd_find_nearest_line_discriminator(abfd, sec, syms, off, file, func, \ |
1484 | . line, disc) \ | |
fb167eb2 AM |
1485 | . BFD_SEND (abfd, _bfd_find_nearest_line, \ |
1486 | . (abfd, syms, sec, off, file, func, line, disc)) | |
9b8d1a36 | 1487 | . |
5420f73d L |
1488 | .#define bfd_find_line(abfd, syms, sym, file, line) \ |
1489 | . BFD_SEND (abfd, _bfd_find_line, \ | |
1490 | . (abfd, syms, sym, file, line)) | |
1491 | . | |
4ab527b0 FF |
1492 | .#define bfd_find_inliner_info(abfd, file, func, line) \ |
1493 | . BFD_SEND (abfd, _bfd_find_inliner_info, \ | |
1494 | . (abfd, file, func, line)) | |
1495 | . | |
252b5132 | 1496 | .#define bfd_debug_info_start(abfd) \ |
ed781d5d | 1497 | . BFD_SEND (abfd, _bfd_debug_info_start, (abfd)) |
252b5132 RH |
1498 | . |
1499 | .#define bfd_debug_info_end(abfd) \ | |
ed781d5d | 1500 | . BFD_SEND (abfd, _bfd_debug_info_end, (abfd)) |
252b5132 RH |
1501 | . |
1502 | .#define bfd_debug_info_accumulate(abfd, section) \ | |
ed781d5d | 1503 | . BFD_SEND (abfd, _bfd_debug_info_accumulate, (abfd, section)) |
252b5132 RH |
1504 | . |
1505 | .#define bfd_stat_arch_elt(abfd, stat) \ | |
ed781d5d | 1506 | . BFD_SEND (abfd, _bfd_stat_arch_elt,(abfd, stat)) |
252b5132 RH |
1507 | . |
1508 | .#define bfd_update_armap_timestamp(abfd) \ | |
ed781d5d | 1509 | . BFD_SEND (abfd, _bfd_update_armap_timestamp, (abfd)) |
252b5132 RH |
1510 | . |
1511 | .#define bfd_set_arch_mach(abfd, arch, mach)\ | |
ed781d5d | 1512 | . BFD_SEND ( abfd, _bfd_set_arch_mach, (abfd, arch, mach)) |
252b5132 RH |
1513 | . |
1514 | .#define bfd_relax_section(abfd, section, link_info, again) \ | |
1515 | . BFD_SEND (abfd, _bfd_relax_section, (abfd, section, link_info, again)) | |
1516 | . | |
1517 | .#define bfd_gc_sections(abfd, link_info) \ | |
1518 | . BFD_SEND (abfd, _bfd_gc_sections, (abfd, link_info)) | |
8550eb6e | 1519 | . |
b9c361e0 JL |
1520 | .#define bfd_lookup_section_flags(link_info, flag_info, section) \ |
1521 | . BFD_SEND (abfd, _bfd_lookup_section_flags, (link_info, flag_info, section)) | |
ae17ab41 | 1522 | . |
8550eb6e JJ |
1523 | .#define bfd_merge_sections(abfd, link_info) \ |
1524 | . BFD_SEND (abfd, _bfd_merge_sections, (abfd, link_info)) | |
252b5132 | 1525 | . |
72adc230 AM |
1526 | .#define bfd_is_group_section(abfd, sec) \ |
1527 | . BFD_SEND (abfd, _bfd_is_group_section, (abfd, sec)) | |
1528 | . | |
e61463e1 AM |
1529 | .#define bfd_discard_group(abfd, sec) \ |
1530 | . BFD_SEND (abfd, _bfd_discard_group, (abfd, sec)) | |
1531 | . | |
252b5132 RH |
1532 | .#define bfd_link_hash_table_create(abfd) \ |
1533 | . BFD_SEND (abfd, _bfd_link_hash_table_create, (abfd)) | |
1534 | . | |
1535 | .#define bfd_link_add_symbols(abfd, info) \ | |
1536 | . BFD_SEND (abfd, _bfd_link_add_symbols, (abfd, info)) | |
1537 | . | |
1449d79b | 1538 | .#define bfd_link_just_syms(abfd, sec, info) \ |
2d653fc7 AM |
1539 | . BFD_SEND (abfd, _bfd_link_just_syms, (sec, info)) |
1540 | . | |
252b5132 RH |
1541 | .#define bfd_final_link(abfd, info) \ |
1542 | . BFD_SEND (abfd, _bfd_final_link, (abfd, info)) | |
1543 | . | |
1544 | .#define bfd_free_cached_info(abfd) \ | |
1545 | . BFD_SEND (abfd, _bfd_free_cached_info, (abfd)) | |
1546 | . | |
1547 | .#define bfd_get_dynamic_symtab_upper_bound(abfd) \ | |
1548 | . BFD_SEND (abfd, _bfd_get_dynamic_symtab_upper_bound, (abfd)) | |
1549 | . | |
1550 | .#define bfd_print_private_bfd_data(abfd, file)\ | |
1551 | . BFD_SEND (abfd, _bfd_print_private_bfd_data, (abfd, file)) | |
1552 | . | |
1553 | .#define bfd_canonicalize_dynamic_symtab(abfd, asymbols) \ | |
1554 | . BFD_SEND (abfd, _bfd_canonicalize_dynamic_symtab, (abfd, asymbols)) | |
1555 | . | |
c9727e01 AM |
1556 | .#define bfd_get_synthetic_symtab(abfd, count, syms, dyncount, dynsyms, ret) \ |
1557 | . BFD_SEND (abfd, _bfd_get_synthetic_symtab, (abfd, count, syms, \ | |
1558 | . dyncount, dynsyms, ret)) | |
4c45e5c9 | 1559 | . |
252b5132 RH |
1560 | .#define bfd_get_dynamic_reloc_upper_bound(abfd) \ |
1561 | . BFD_SEND (abfd, _bfd_get_dynamic_reloc_upper_bound, (abfd)) | |
1562 | . | |
1563 | .#define bfd_canonicalize_dynamic_reloc(abfd, arels, asyms) \ | |
1564 | . BFD_SEND (abfd, _bfd_canonicalize_dynamic_reloc, (abfd, arels, asyms)) | |
1565 | . | |
1566 | .extern bfd_byte *bfd_get_relocated_section_contents | |
c58b9523 AM |
1567 | . (bfd *, struct bfd_link_info *, struct bfd_link_order *, bfd_byte *, |
1568 | . bfd_boolean, asymbol **); | |
252b5132 RH |
1569 | . |
1570 | ||
1571 | */ | |
1572 | ||
1573 | bfd_byte * | |
c58b9523 AM |
1574 | bfd_get_relocated_section_contents (bfd *abfd, |
1575 | struct bfd_link_info *link_info, | |
1576 | struct bfd_link_order *link_order, | |
1577 | bfd_byte *data, | |
1578 | bfd_boolean relocatable, | |
1579 | asymbol **symbols) | |
252b5132 RH |
1580 | { |
1581 | bfd *abfd2; | |
c58b9523 AM |
1582 | bfd_byte *(*fn) (bfd *, struct bfd_link_info *, struct bfd_link_order *, |
1583 | bfd_byte *, bfd_boolean, asymbol **); | |
252b5132 RH |
1584 | |
1585 | if (link_order->type == bfd_indirect_link_order) | |
1586 | { | |
1587 | abfd2 = link_order->u.indirect.section->owner; | |
55ab10f0 | 1588 | if (abfd2 == NULL) |
252b5132 RH |
1589 | abfd2 = abfd; |
1590 | } | |
1591 | else | |
1592 | abfd2 = abfd; | |
55ab10f0 | 1593 | |
252b5132 RH |
1594 | fn = abfd2->xvec->_bfd_get_relocated_section_contents; |
1595 | ||
1049f94e | 1596 | return (*fn) (abfd, link_info, link_order, data, relocatable, symbols); |
252b5132 RH |
1597 | } |
1598 | ||
1599 | /* Record information about an ELF program header. */ | |
1600 | ||
b34976b6 | 1601 | bfd_boolean |
c58b9523 AM |
1602 | bfd_record_phdr (bfd *abfd, |
1603 | unsigned long type, | |
1604 | bfd_boolean flags_valid, | |
1605 | flagword flags, | |
1606 | bfd_boolean at_valid, | |
1607 | bfd_vma at, | |
1608 | bfd_boolean includes_filehdr, | |
1609 | bfd_boolean includes_phdrs, | |
1610 | unsigned int count, | |
1611 | asection **secs) | |
252b5132 RH |
1612 | { |
1613 | struct elf_segment_map *m, **pm; | |
dc810e39 | 1614 | bfd_size_type amt; |
252b5132 RH |
1615 | |
1616 | if (bfd_get_flavour (abfd) != bfd_target_elf_flavour) | |
b34976b6 | 1617 | return TRUE; |
252b5132 | 1618 | |
dc810e39 AM |
1619 | amt = sizeof (struct elf_segment_map); |
1620 | amt += ((bfd_size_type) count - 1) * sizeof (asection *); | |
a50b1753 | 1621 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
252b5132 | 1622 | if (m == NULL) |
b34976b6 | 1623 | return FALSE; |
252b5132 | 1624 | |
252b5132 RH |
1625 | m->p_type = type; |
1626 | m->p_flags = flags; | |
1627 | m->p_paddr = at; | |
c58b9523 AM |
1628 | m->p_flags_valid = flags_valid; |
1629 | m->p_paddr_valid = at_valid; | |
1630 | m->includes_filehdr = includes_filehdr; | |
1631 | m->includes_phdrs = includes_phdrs; | |
252b5132 RH |
1632 | m->count = count; |
1633 | if (count > 0) | |
1634 | memcpy (m->sections, secs, count * sizeof (asection *)); | |
1635 | ||
12bd6957 | 1636 | for (pm = &elf_seg_map (abfd); *pm != NULL; pm = &(*pm)->next) |
252b5132 RH |
1637 | ; |
1638 | *pm = m; | |
1639 | ||
b34976b6 | 1640 | return TRUE; |
252b5132 | 1641 | } |
ae4221d7 | 1642 | |
01a3c213 AM |
1643 | #ifdef BFD64 |
1644 | /* Return true iff this target is 32-bit. */ | |
1645 | ||
1646 | static bfd_boolean | |
1647 | is32bit (bfd *abfd) | |
ae4221d7 L |
1648 | { |
1649 | if (bfd_get_flavour (abfd) == bfd_target_elf_flavour) | |
01a3c213 AM |
1650 | { |
1651 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
1652 | return bed->s->elfclass == ELFCLASS32; | |
1653 | } | |
1654 | ||
6aa341c7 TG |
1655 | /* For non-ELF targets, use architecture information. */ |
1656 | return bfd_arch_bits_per_address (abfd) <= 32; | |
ae4221d7 | 1657 | } |
01a3c213 AM |
1658 | #endif |
1659 | ||
1660 | /* bfd_sprintf_vma and bfd_fprintf_vma display an address in the | |
1661 | target's address size. */ | |
ae4221d7 L |
1662 | |
1663 | void | |
01a3c213 | 1664 | bfd_sprintf_vma (bfd *abfd ATTRIBUTE_UNUSED, char *buf, bfd_vma value) |
ae4221d7 | 1665 | { |
970ccc77 | 1666 | #ifdef BFD64 |
01a3c213 AM |
1667 | if (is32bit (abfd)) |
1668 | { | |
1669 | sprintf (buf, "%08lx", (unsigned long) value & 0xffffffff); | |
1670 | return; | |
1671 | } | |
970ccc77 | 1672 | #endif |
01a3c213 AM |
1673 | sprintf_vma (buf, value); |
1674 | } | |
1675 | ||
1676 | void | |
1677 | bfd_fprintf_vma (bfd *abfd ATTRIBUTE_UNUSED, void *stream, bfd_vma value) | |
1678 | { | |
1679 | #ifdef BFD64 | |
1680 | if (is32bit (abfd)) | |
1681 | { | |
1682 | fprintf ((FILE *) stream, "%08lx", (unsigned long) value & 0xffffffff); | |
1683 | return; | |
1684 | } | |
1685 | #endif | |
1686 | fprintf_vma ((FILE *) stream, value); | |
ae4221d7 | 1687 | } |
8c98ec7d AO |
1688 | |
1689 | /* | |
1690 | FUNCTION | |
1691 | bfd_alt_mach_code | |
1692 | ||
1693 | SYNOPSIS | |
ed781d5d | 1694 | bfd_boolean bfd_alt_mach_code (bfd *abfd, int alternative); |
8c98ec7d AO |
1695 | |
1696 | DESCRIPTION | |
1697 | ||
1698 | When more than one machine code number is available for the | |
1699 | same machine type, this function can be used to switch between | |
47badb7b | 1700 | the preferred one (alternative == 0) and any others. Currently, |
8c98ec7d AO |
1701 | only ELF supports this feature, with up to two alternate |
1702 | machine codes. | |
1703 | */ | |
1704 | ||
b34976b6 | 1705 | bfd_boolean |
c58b9523 | 1706 | bfd_alt_mach_code (bfd *abfd, int alternative) |
8c98ec7d AO |
1707 | { |
1708 | if (bfd_get_flavour (abfd) == bfd_target_elf_flavour) | |
1709 | { | |
1710 | int code; | |
1711 | ||
47badb7b | 1712 | switch (alternative) |
8c98ec7d AO |
1713 | { |
1714 | case 0: | |
1715 | code = get_elf_backend_data (abfd)->elf_machine_code; | |
1716 | break; | |
1717 | ||
1718 | case 1: | |
1719 | code = get_elf_backend_data (abfd)->elf_machine_alt1; | |
1720 | if (code == 0) | |
b34976b6 | 1721 | return FALSE; |
8c98ec7d AO |
1722 | break; |
1723 | ||
1724 | case 2: | |
1725 | code = get_elf_backend_data (abfd)->elf_machine_alt2; | |
1726 | if (code == 0) | |
b34976b6 | 1727 | return FALSE; |
8c98ec7d AO |
1728 | break; |
1729 | ||
1730 | default: | |
b34976b6 | 1731 | return FALSE; |
8c98ec7d AO |
1732 | } |
1733 | ||
1734 | elf_elfheader (abfd)->e_machine = code; | |
1735 | ||
b34976b6 | 1736 | return TRUE; |
8c98ec7d AO |
1737 | } |
1738 | ||
b34976b6 | 1739 | return FALSE; |
8c98ec7d | 1740 | } |
e84d6fca | 1741 | |
24718e3b L |
1742 | /* |
1743 | FUNCTION | |
1744 | bfd_emul_get_maxpagesize | |
1745 | ||
1746 | SYNOPSIS | |
1747 | bfd_vma bfd_emul_get_maxpagesize (const char *); | |
1748 | ||
1749 | DESCRIPTION | |
1750 | Returns the maximum page size, in bytes, as determined by | |
1751 | emulation. | |
1752 | ||
1753 | RETURNS | |
095106a2 | 1754 | Returns the maximum page size in bytes for ELF, 0 otherwise. |
24718e3b L |
1755 | */ |
1756 | ||
1757 | bfd_vma | |
1758 | bfd_emul_get_maxpagesize (const char *emul) | |
1759 | { | |
1760 | const bfd_target *target; | |
1761 | ||
1762 | target = bfd_find_target (emul, NULL); | |
1763 | if (target != NULL | |
1764 | && target->flavour == bfd_target_elf_flavour) | |
1765 | return xvec_get_elf_backend_data (target)->maxpagesize; | |
1766 | ||
24718e3b L |
1767 | return 0; |
1768 | } | |
1769 | ||
1770 | static void | |
1771 | bfd_elf_set_pagesize (const bfd_target *target, bfd_vma size, | |
1772 | int offset, const bfd_target *orig_target) | |
1773 | { | |
1774 | if (target->flavour == bfd_target_elf_flavour) | |
1775 | { | |
1776 | const struct elf_backend_data *bed; | |
1777 | ||
1778 | bed = xvec_get_elf_backend_data (target); | |
1779 | *((bfd_vma *) ((char *) bed + offset)) = size; | |
1780 | } | |
1781 | ||
1782 | if (target->alternative_target | |
1783 | && target->alternative_target != orig_target) | |
1784 | bfd_elf_set_pagesize (target->alternative_target, size, offset, | |
1785 | orig_target); | |
1786 | } | |
1787 | ||
1788 | /* | |
1789 | FUNCTION | |
1790 | bfd_emul_set_maxpagesize | |
1791 | ||
1792 | SYNOPSIS | |
1793 | void bfd_emul_set_maxpagesize (const char *, bfd_vma); | |
1794 | ||
1795 | DESCRIPTION | |
1796 | For ELF, set the maximum page size for the emulation. It is | |
1797 | a no-op for other formats. | |
1798 | ||
1799 | */ | |
1800 | ||
1801 | void | |
1802 | bfd_emul_set_maxpagesize (const char *emul, bfd_vma size) | |
1803 | { | |
1804 | const bfd_target *target; | |
1805 | ||
1806 | target = bfd_find_target (emul, NULL); | |
1807 | if (target) | |
1808 | bfd_elf_set_pagesize (target, size, | |
1809 | offsetof (struct elf_backend_data, | |
1810 | maxpagesize), target); | |
1811 | } | |
1812 | ||
1813 | /* | |
1814 | FUNCTION | |
1815 | bfd_emul_get_commonpagesize | |
1816 | ||
1817 | SYNOPSIS | |
1818 | bfd_vma bfd_emul_get_commonpagesize (const char *); | |
1819 | ||
1820 | DESCRIPTION | |
1821 | Returns the common page size, in bytes, as determined by | |
1822 | emulation. | |
1823 | ||
1824 | RETURNS | |
095106a2 | 1825 | Returns the common page size in bytes for ELF, 0 otherwise. |
24718e3b L |
1826 | */ |
1827 | ||
1828 | bfd_vma | |
1829 | bfd_emul_get_commonpagesize (const char *emul) | |
1830 | { | |
1831 | const bfd_target *target; | |
1832 | ||
1833 | target = bfd_find_target (emul, NULL); | |
1834 | if (target != NULL | |
1835 | && target->flavour == bfd_target_elf_flavour) | |
1836 | return xvec_get_elf_backend_data (target)->commonpagesize; | |
1837 | ||
24718e3b L |
1838 | return 0; |
1839 | } | |
1840 | ||
1841 | /* | |
1842 | FUNCTION | |
1843 | bfd_emul_set_commonpagesize | |
1844 | ||
1845 | SYNOPSIS | |
1846 | void bfd_emul_set_commonpagesize (const char *, bfd_vma); | |
1847 | ||
1848 | DESCRIPTION | |
1849 | For ELF, set the common page size for the emulation. It is | |
1850 | a no-op for other formats. | |
1851 | ||
1852 | */ | |
1853 | ||
1854 | void | |
1855 | bfd_emul_set_commonpagesize (const char *emul, bfd_vma size) | |
1856 | { | |
1857 | const bfd_target *target; | |
1858 | ||
1859 | target = bfd_find_target (emul, NULL); | |
1860 | if (target) | |
1861 | bfd_elf_set_pagesize (target, size, | |
1862 | offsetof (struct elf_backend_data, | |
1863 | commonpagesize), target); | |
1864 | } | |
3fad56a3 AM |
1865 | |
1866 | /* | |
1867 | FUNCTION | |
1868 | bfd_demangle | |
1869 | ||
1870 | SYNOPSIS | |
1871 | char *bfd_demangle (bfd *, const char *, int); | |
1872 | ||
1873 | DESCRIPTION | |
1874 | Wrapper around cplus_demangle. Strips leading underscores and | |
1875 | other such chars that would otherwise confuse the demangler. | |
1876 | If passed a g++ v3 ABI mangled name, returns a buffer allocated | |
1877 | with malloc holding the demangled name. Returns NULL otherwise | |
1878 | and on memory alloc failure. | |
1879 | */ | |
1880 | ||
1881 | char * | |
1882 | bfd_demangle (bfd *abfd, const char *name, int options) | |
1883 | { | |
1884 | char *res, *alloc; | |
1885 | const char *pre, *suf; | |
1886 | size_t pre_len; | |
c29aae59 | 1887 | bfd_boolean skip_lead; |
3fad56a3 | 1888 | |
c29aae59 AM |
1889 | skip_lead = (abfd != NULL |
1890 | && *name != '\0' | |
1891 | && bfd_get_symbol_leading_char (abfd) == *name); | |
1892 | if (skip_lead) | |
3fad56a3 AM |
1893 | ++name; |
1894 | ||
1895 | /* This is a hack for better error reporting on XCOFF, PowerPC64-ELF | |
1896 | or the MS PE format. These formats have a number of leading '.'s | |
1897 | on at least some symbols, so we remove all dots to avoid | |
1898 | confusing the demangler. */ | |
1899 | pre = name; | |
1900 | while (*name == '.' || *name == '$') | |
1901 | ++name; | |
1902 | pre_len = name - pre; | |
1903 | ||
1904 | /* Strip off @plt and suchlike too. */ | |
1905 | alloc = NULL; | |
1906 | suf = strchr (name, '@'); | |
1907 | if (suf != NULL) | |
1908 | { | |
a50b1753 | 1909 | alloc = (char *) bfd_malloc (suf - name + 1); |
3fad56a3 AM |
1910 | if (alloc == NULL) |
1911 | return NULL; | |
1912 | memcpy (alloc, name, suf - name); | |
1913 | alloc[suf - name] = '\0'; | |
1914 | name = alloc; | |
1915 | } | |
1916 | ||
1917 | res = cplus_demangle (name, options); | |
1918 | ||
1919 | if (alloc != NULL) | |
1920 | free (alloc); | |
1921 | ||
1922 | if (res == NULL) | |
c29aae59 AM |
1923 | { |
1924 | if (skip_lead) | |
1925 | { | |
1926 | size_t len = strlen (pre) + 1; | |
a50b1753 | 1927 | alloc = (char *) bfd_malloc (len); |
c29aae59 AM |
1928 | if (alloc == NULL) |
1929 | return NULL; | |
1930 | memcpy (alloc, pre, len); | |
1931 | return alloc; | |
1932 | } | |
1933 | return NULL; | |
1934 | } | |
3fad56a3 AM |
1935 | |
1936 | /* Put back any prefix or suffix. */ | |
1937 | if (pre_len != 0 || suf != NULL) | |
1938 | { | |
1939 | size_t len; | |
1940 | size_t suf_len; | |
1941 | char *final; | |
1942 | ||
1943 | len = strlen (res); | |
1944 | if (suf == NULL) | |
1945 | suf = res + len; | |
1946 | suf_len = strlen (suf) + 1; | |
a50b1753 | 1947 | final = (char *) bfd_malloc (pre_len + len + suf_len); |
32e8a950 NC |
1948 | if (final != NULL) |
1949 | { | |
1950 | memcpy (final, pre, pre_len); | |
1951 | memcpy (final + pre_len, res, len); | |
1952 | memcpy (final + pre_len + len, suf, suf_len); | |
1953 | } | |
3fad56a3 AM |
1954 | free (res); |
1955 | res = final; | |
1956 | } | |
1957 | ||
1958 | return res; | |
1959 | } | |
151411f8 L |
1960 | |
1961 | /* | |
1962 | FUNCTION | |
1963 | bfd_update_compression_header | |
1964 | ||
1965 | SYNOPSIS | |
1966 | void bfd_update_compression_header | |
1967 | (bfd *abfd, bfd_byte *contents, asection *sec); | |
1968 | ||
1969 | DESCRIPTION | |
1970 | Set the compression header at CONTENTS of SEC in ABFD and update | |
1971 | elf_section_flags for compression. | |
1972 | */ | |
1973 | ||
1974 | void | |
1975 | bfd_update_compression_header (bfd *abfd, bfd_byte *contents, | |
1976 | asection *sec) | |
1977 | { | |
1978 | if ((abfd->flags & BFD_COMPRESS) != 0) | |
1979 | { | |
1980 | if (bfd_get_flavour (abfd) == bfd_target_elf_flavour) | |
1981 | { | |
1982 | if ((abfd->flags & BFD_COMPRESS_GABI) != 0) | |
1983 | { | |
1984 | const struct elf_backend_data *bed | |
1985 | = get_elf_backend_data (abfd); | |
1986 | ||
1987 | /* Set the SHF_COMPRESSED bit. */ | |
1988 | elf_section_flags (sec) |= SHF_COMPRESSED; | |
1989 | ||
1990 | if (bed->s->elfclass == ELFCLASS32) | |
1991 | { | |
1992 | Elf32_External_Chdr *echdr | |
1993 | = (Elf32_External_Chdr *) contents; | |
1994 | bfd_put_32 (abfd, ELFCOMPRESS_ZLIB, &echdr->ch_type); | |
1995 | bfd_put_32 (abfd, sec->size, &echdr->ch_size); | |
1996 | bfd_put_32 (abfd, 1 << sec->alignment_power, | |
1997 | &echdr->ch_addralign); | |
1998 | } | |
1999 | else | |
2000 | { | |
2001 | Elf64_External_Chdr *echdr | |
2002 | = (Elf64_External_Chdr *) contents; | |
2003 | bfd_put_64 (abfd, ELFCOMPRESS_ZLIB, &echdr->ch_type); | |
2004 | bfd_put_64 (abfd, sec->size, &echdr->ch_size); | |
2005 | bfd_put_64 (abfd, 1 << sec->alignment_power, | |
2006 | &echdr->ch_addralign); | |
2007 | } | |
2008 | } | |
2009 | else | |
dab394de L |
2010 | { |
2011 | /* Clear the SHF_COMPRESSED bit. */ | |
2012 | elf_section_flags (sec) &= ~SHF_COMPRESSED; | |
2013 | ||
2014 | /* Write the zlib header. It should be "ZLIB" followed by | |
2015 | the uncompressed section size, 8 bytes in big-endian | |
2016 | order. */ | |
2017 | memcpy (contents, "ZLIB", 4); | |
2018 | bfd_putb64 (sec->size, contents + 4); | |
2019 | } | |
151411f8 L |
2020 | } |
2021 | } | |
2022 | else | |
2023 | abort (); | |
2024 | } | |
2025 | ||
2026 | /* | |
2027 | FUNCTION | |
2028 | bfd_check_compression_header | |
2029 | ||
2030 | SYNOPSIS | |
2031 | bfd_boolean bfd_check_compression_header | |
2032 | (bfd *abfd, bfd_byte *contents, asection *sec, | |
dab394de | 2033 | bfd_size_type *uncompressed_size); |
151411f8 L |
2034 | |
2035 | DESCRIPTION | |
dab394de L |
2036 | Check the compression header at CONTENTS of SEC in ABFD and |
2037 | store the uncompressed size in UNCOMPRESSED_SIZE if the | |
2038 | compression header is valid. | |
151411f8 L |
2039 | |
2040 | RETURNS | |
2041 | Return TRUE if the compression header is valid. | |
2042 | */ | |
2043 | ||
2044 | bfd_boolean | |
2045 | bfd_check_compression_header (bfd *abfd, bfd_byte *contents, | |
2046 | asection *sec, | |
dab394de | 2047 | bfd_size_type *uncompressed_size) |
151411f8 L |
2048 | { |
2049 | if (bfd_get_flavour (abfd) == bfd_target_elf_flavour | |
2050 | && (elf_section_flags (sec) & SHF_COMPRESSED) != 0) | |
2051 | { | |
2052 | Elf_Internal_Chdr chdr; | |
2053 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
2054 | if (bed->s->elfclass == ELFCLASS32) | |
2055 | { | |
2056 | Elf32_External_Chdr *echdr = (Elf32_External_Chdr *) contents; | |
2057 | chdr.ch_type = bfd_get_32 (abfd, &echdr->ch_type); | |
2058 | chdr.ch_size = bfd_get_32 (abfd, &echdr->ch_size); | |
2059 | chdr.ch_addralign = bfd_get_32 (abfd, &echdr->ch_addralign); | |
2060 | } | |
2061 | else | |
2062 | { | |
2063 | Elf64_External_Chdr *echdr = (Elf64_External_Chdr *) contents; | |
2064 | chdr.ch_type = bfd_get_64 (abfd, &echdr->ch_type); | |
2065 | chdr.ch_size = bfd_get_64 (abfd, &echdr->ch_size); | |
2066 | chdr.ch_addralign = bfd_get_64 (abfd, &echdr->ch_addralign); | |
2067 | } | |
dab394de L |
2068 | if (chdr.ch_type == ELFCOMPRESS_ZLIB |
2069 | && chdr.ch_addralign == 1U << sec->alignment_power) | |
2070 | { | |
2071 | *uncompressed_size = chdr.ch_size; | |
2072 | return TRUE; | |
2073 | } | |
151411f8 L |
2074 | } |
2075 | ||
2076 | return FALSE; | |
2077 | } | |
2078 | ||
2079 | /* | |
2080 | FUNCTION | |
2081 | bfd_get_compression_header_size | |
2082 | ||
2083 | SYNOPSIS | |
2084 | int bfd_get_compression_header_size (bfd *abfd, asection *sec); | |
2085 | ||
2086 | DESCRIPTION | |
2087 | Return the size of the compression header of SEC in ABFD. | |
2088 | ||
2089 | RETURNS | |
2090 | Return the size of the compression header in bytes. | |
2091 | */ | |
2092 | ||
2093 | int | |
2094 | bfd_get_compression_header_size (bfd *abfd, asection *sec) | |
2095 | { | |
2096 | if (bfd_get_flavour (abfd) == bfd_target_elf_flavour) | |
2097 | { | |
2098 | if (sec == NULL) | |
2099 | { | |
2100 | if (!(abfd->flags & BFD_COMPRESS_GABI)) | |
2101 | return 0; | |
2102 | } | |
2103 | else if (!(elf_section_flags (sec) & SHF_COMPRESSED)) | |
2104 | return 0; | |
2105 | ||
2106 | if (get_elf_backend_data (abfd)->s->elfclass == ELFCLASS32) | |
2107 | return sizeof (Elf32_External_Chdr); | |
2108 | else | |
2109 | return sizeof (Elf64_External_Chdr); | |
2110 | } | |
2111 | ||
2112 | return 0; | |
2113 | } | |
88988473 L |
2114 | |
2115 | /* | |
2116 | FUNCTION | |
2117 | bfd_convert_section_size | |
2118 | ||
2119 | SYNOPSIS | |
2120 | bfd_size_type bfd_convert_section_size | |
2121 | (bfd *ibfd, asection *isec, bfd *obfd, bfd_size_type size); | |
2122 | ||
2123 | DESCRIPTION | |
2124 | Convert the size @var{size} of the section @var{isec} in input | |
2125 | BFD @var{ibfd} to the section size in output BFD @var{obfd}. | |
2126 | */ | |
2127 | ||
2128 | bfd_size_type | |
2129 | bfd_convert_section_size (bfd *ibfd, sec_ptr isec, bfd *obfd, | |
2130 | bfd_size_type size) | |
2131 | { | |
2132 | bfd_size_type hdr_size; | |
2133 | ||
2134 | /* Do nothing if input file will be decompressed. */ | |
2135 | if ((ibfd->flags & BFD_DECOMPRESS)) | |
2136 | return size; | |
2137 | ||
2138 | /* Do nothing if either input or output aren't ELF. */ | |
2139 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
2140 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
2141 | return size; | |
2142 | ||
2143 | /* Do nothing if ELF classes of input and output are the same. */ | |
2144 | if (get_elf_backend_data (ibfd)->s->elfclass | |
2145 | == get_elf_backend_data (obfd)->s->elfclass) | |
2146 | return size; | |
2147 | ||
2148 | /* Do nothing if the input section isn't a SHF_COMPRESSED section. */ | |
2149 | hdr_size = bfd_get_compression_header_size (ibfd, isec); | |
2150 | if (hdr_size == 0) | |
2151 | return size; | |
2152 | ||
2153 | /* Adjust the size of the output SHF_COMPRESSED section. */ | |
2154 | if (hdr_size == sizeof (Elf32_External_Chdr)) | |
2155 | return (size - sizeof (Elf32_External_Chdr) | |
2156 | + sizeof (Elf64_External_Chdr)); | |
2157 | else | |
2158 | return (size - sizeof (Elf64_External_Chdr) | |
2159 | + sizeof (Elf32_External_Chdr)); | |
2160 | } | |
2161 | ||
2162 | /* | |
2163 | FUNCTION | |
2164 | bfd_convert_section_contents | |
2165 | ||
2166 | SYNOPSIS | |
2167 | bfd_boolean bfd_convert_section_contents | |
2168 | (bfd *ibfd, asection *isec, bfd *obfd, bfd_byte **ptr); | |
2169 | ||
2170 | DESCRIPTION | |
2171 | Convert the contents, stored in @var{*ptr}, of the section | |
2172 | @var{isec} in input BFD @var{ibfd} to output BFD @var{obfd} | |
2173 | if needed. The original buffer pointed to by @var{*ptr} may | |
2174 | be freed and @var{*ptr} is returned with memory malloc'd by this | |
2175 | function. | |
2176 | */ | |
2177 | ||
2178 | bfd_boolean | |
2179 | bfd_convert_section_contents (bfd *ibfd, sec_ptr isec, bfd *obfd, | |
2180 | bfd_byte **ptr) | |
2181 | { | |
2182 | bfd_byte *contents; | |
2183 | bfd_size_type ihdr_size, ohdr_size, size; | |
2184 | Elf_Internal_Chdr chdr; | |
2185 | bfd_boolean use_memmove; | |
2186 | ||
2187 | /* Do nothing if input file will be decompressed. */ | |
2188 | if ((ibfd->flags & BFD_DECOMPRESS)) | |
2189 | return TRUE; | |
2190 | ||
2191 | /* Do nothing if either input or output aren't ELF. */ | |
2192 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
2193 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
2194 | return TRUE; | |
2195 | ||
2196 | /* Do nothing if ELF classes of input and output are the same. */ | |
2197 | if (get_elf_backend_data (ibfd)->s->elfclass | |
2198 | == get_elf_backend_data (obfd)->s->elfclass) | |
2199 | return TRUE; | |
2200 | ||
2201 | /* Do nothing if the input section isn't a SHF_COMPRESSED section. */ | |
2202 | ihdr_size = bfd_get_compression_header_size (ibfd, isec); | |
2203 | if (ihdr_size == 0) | |
2204 | return TRUE; | |
2205 | ||
2206 | contents = *ptr; | |
2207 | ||
2208 | /* Convert the contents of the input SHF_COMPRESSED section to | |
2209 | output. Get the input compression header and the size of the | |
2210 | output compression header. */ | |
2211 | if (ihdr_size == sizeof (Elf32_External_Chdr)) | |
2212 | { | |
2213 | Elf32_External_Chdr *echdr = (Elf32_External_Chdr *) contents; | |
2214 | chdr.ch_type = bfd_get_32 (ibfd, &echdr->ch_type); | |
2215 | chdr.ch_size = bfd_get_32 (ibfd, &echdr->ch_size); | |
2216 | chdr.ch_addralign = bfd_get_32 (ibfd, &echdr->ch_addralign); | |
2217 | ||
2218 | ohdr_size = sizeof (Elf64_External_Chdr); | |
2219 | ||
2220 | use_memmove = FALSE; | |
2221 | } | |
2222 | else | |
2223 | { | |
2224 | Elf64_External_Chdr *echdr = (Elf64_External_Chdr *) contents; | |
2225 | chdr.ch_type = bfd_get_64 (ibfd, &echdr->ch_type); | |
2226 | chdr.ch_size = bfd_get_64 (ibfd, &echdr->ch_size); | |
2227 | chdr.ch_addralign = bfd_get_64 (ibfd, &echdr->ch_addralign); | |
2228 | ||
2229 | ohdr_size = sizeof (Elf32_External_Chdr); | |
2230 | use_memmove = TRUE; | |
2231 | } | |
2232 | ||
2233 | size = bfd_get_section_size (isec) - ihdr_size + ohdr_size; | |
2234 | if (!use_memmove) | |
2235 | { | |
2236 | contents = (bfd_byte *) bfd_malloc (size); | |
2237 | if (contents == NULL) | |
2238 | return FALSE; | |
2239 | } | |
2240 | ||
2241 | /* Write out the output compression header. */ | |
2242 | if (ohdr_size == sizeof (Elf32_External_Chdr)) | |
2243 | { | |
2244 | Elf32_External_Chdr *echdr = (Elf32_External_Chdr *) contents; | |
2245 | bfd_put_32 (obfd, ELFCOMPRESS_ZLIB, &echdr->ch_type); | |
2246 | bfd_put_32 (obfd, chdr.ch_size, &echdr->ch_size); | |
2247 | bfd_put_32 (obfd, chdr.ch_addralign, &echdr->ch_addralign); | |
2248 | } | |
2249 | else | |
2250 | { | |
2251 | Elf64_External_Chdr *echdr = (Elf64_External_Chdr *) contents; | |
2252 | bfd_put_64 (obfd, ELFCOMPRESS_ZLIB, &echdr->ch_type); | |
2253 | bfd_put_64 (obfd, chdr.ch_size, &echdr->ch_size); | |
2254 | bfd_put_64 (obfd, chdr.ch_addralign, &echdr->ch_addralign); | |
2255 | } | |
2256 | ||
2257 | /* Copy the compressed contents. */ | |
2258 | if (use_memmove) | |
2259 | memmove (contents + ohdr_size, *ptr + ihdr_size, size - ohdr_size); | |
2260 | else | |
2261 | { | |
2262 | memcpy (contents + ohdr_size, *ptr + ihdr_size, size - ohdr_size); | |
2263 | free (*ptr); | |
2264 | *ptr = contents; | |
2265 | } | |
2266 | ||
2267 | return TRUE; | |
2268 | } |