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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 | . | |
c2852e88 | 54 | .struct bfd |
252b5132 | 55 | .{ |
b5f79c76 NC |
56 | . {* The filename the application opened the BFD with. *} |
57 | . const char *filename; | |
252b5132 | 58 | . |
b5f79c76 NC |
59 | . {* A pointer to the target jump table. *} |
60 | . const struct bfd_target *xvec; | |
252b5132 | 61 | . |
40838a72 AC |
62 | . {* The IOSTREAM, and corresponding IO vector that provide access |
63 | . to the file backing the BFD. *} | |
c58b9523 | 64 | . void *iostream; |
40838a72 | 65 | . const struct bfd_iovec *iovec; |
b5f79c76 | 66 | . |
b5f79c76 NC |
67 | . {* The caching routines use these to maintain a |
68 | . least-recently-used list of BFDs. *} | |
2ce40c65 | 69 | . struct bfd *lru_prev, *lru_next; |
b5f79c76 NC |
70 | . |
71 | . {* When a file is closed by the caching routines, BFD retains | |
72 | . state information on the file here... *} | |
73 | . ufile_ptr where; | |
74 | . | |
b34976b6 | 75 | . {* File modified time, if mtime_set is TRUE. *} |
b5f79c76 NC |
76 | . long mtime; |
77 | . | |
b6a1c03a AM |
78 | . {* A unique identifier of the BFD *} |
79 | . unsigned int id; | |
b5f79c76 NC |
80 | . |
81 | . {* The format which belongs to the BFD. (object, core, etc.) *} | |
b6a1c03a | 82 | . ENUM_BITFIELD (bfd_format) format : 3; |
b5f79c76 NC |
83 | . |
84 | . {* The direction with which the BFD was opened. *} | |
b6a1c03a | 85 | . ENUM_BITFIELD (bfd_direction) direction : 2; |
b5f79c76 NC |
86 | . |
87 | . {* Format_specific flags. *} | |
151411f8 | 88 | . flagword flags : 18; |
b5f79c76 | 89 | . |
6ad2759d L |
90 | . {* Values that may appear in the flags field of a BFD. These also |
91 | . appear in the object_flags field of the bfd_target structure, where | |
92 | . they indicate the set of flags used by that backend (not all flags | |
93 | . are meaningful for all object file formats) (FIXME: at the moment, | |
94 | . the object_flags values have mostly just been copied from backend | |
95 | . to another, and are not necessarily correct). *} | |
96 | . | |
97 | .#define BFD_NO_FLAGS 0x00 | |
98 | . | |
99 | . {* BFD contains relocation entries. *} | |
100 | .#define HAS_RELOC 0x01 | |
101 | . | |
102 | . {* BFD is directly executable. *} | |
103 | .#define EXEC_P 0x02 | |
104 | . | |
105 | . {* BFD has line number information (basically used for F_LNNO in a | |
106 | . COFF header). *} | |
107 | .#define HAS_LINENO 0x04 | |
108 | . | |
109 | . {* BFD has debugging information. *} | |
110 | .#define HAS_DEBUG 0x08 | |
111 | . | |
112 | . {* BFD has symbols. *} | |
113 | .#define HAS_SYMS 0x10 | |
114 | . | |
115 | . {* BFD has local symbols (basically used for F_LSYMS in a COFF | |
116 | . header). *} | |
117 | .#define HAS_LOCALS 0x20 | |
118 | . | |
119 | . {* BFD is a dynamic object. *} | |
120 | .#define DYNAMIC 0x40 | |
121 | . | |
122 | . {* Text section is write protected (if D_PAGED is not set, this is | |
123 | . like an a.out NMAGIC file) (the linker sets this by default, but | |
124 | . clears it for -r or -N). *} | |
125 | .#define WP_TEXT 0x80 | |
126 | . | |
127 | . {* BFD is dynamically paged (this is like an a.out ZMAGIC file) (the | |
128 | . linker sets this by default, but clears it for -r or -n or -N). *} | |
129 | .#define D_PAGED 0x100 | |
130 | . | |
131 | . {* BFD is relaxable (this means that bfd_relax_section may be able to | |
132 | . do something) (sometimes bfd_relax_section can do something even if | |
133 | . this is not set). *} | |
134 | .#define BFD_IS_RELAXABLE 0x200 | |
135 | . | |
136 | . {* This may be set before writing out a BFD to request using a | |
137 | . traditional format. For example, this is used to request that when | |
138 | . writing out an a.out object the symbols not be hashed to eliminate | |
139 | . duplicates. *} | |
140 | .#define BFD_TRADITIONAL_FORMAT 0x400 | |
141 | . | |
142 | . {* This flag indicates that the BFD contents are actually cached | |
143 | . in memory. If this is set, iostream points to a bfd_in_memory | |
144 | . struct. *} | |
145 | .#define BFD_IN_MEMORY 0x800 | |
146 | . | |
6ad2759d L |
147 | . {* This BFD has been created by the linker and doesn't correspond |
148 | . to any input file. *} | |
b6a1c03a | 149 | .#define BFD_LINKER_CREATED 0x1000 |
6ad2759d | 150 | . |
36e4dce6 CD |
151 | . {* This may be set before writing out a BFD to request that it |
152 | . be written using values for UIDs, GIDs, timestamps, etc. that | |
153 | . will be consistent from run to run. *} | |
b6a1c03a | 154 | .#define BFD_DETERMINISTIC_OUTPUT 0x2000 |
36e4dce6 | 155 | . |
4a114e3e | 156 | . {* Compress sections in this BFD. *} |
b6a1c03a | 157 | .#define BFD_COMPRESS 0x4000 |
4a114e3e L |
158 | . |
159 | . {* Decompress sections in this BFD. *} | |
b6a1c03a | 160 | .#define BFD_DECOMPRESS 0x8000 |
4a114e3e | 161 | . |
9e2278f5 | 162 | . {* BFD is a dummy, for plugins. *} |
b6a1c03a | 163 | .#define BFD_PLUGIN 0x10000 |
9e2278f5 | 164 | . |
151411f8 L |
165 | . {* Compress sections in this BFD with SHF_COMPRESSED from gABI. *} |
166 | .#define BFD_COMPRESS_GABI 0x20000 | |
167 | . | |
4a114e3e L |
168 | . {* Flags bits to be saved in bfd_preserve_save. *} |
169 | .#define BFD_FLAGS_SAVED \ | |
151411f8 L |
170 | . (BFD_IN_MEMORY | BFD_COMPRESS | BFD_DECOMPRESS | BFD_PLUGIN \ |
171 | . | BFD_COMPRESS_GABI) | |
4a114e3e | 172 | . |
6b6bc957 L |
173 | . {* Flags bits which are for BFD use only. *} |
174 | .#define BFD_FLAGS_FOR_BFD_USE_MASK \ | |
175 | . (BFD_IN_MEMORY | BFD_COMPRESS | BFD_DECOMPRESS | BFD_LINKER_CREATED \ | |
151411f8 L |
176 | . | BFD_PLUGIN | BFD_TRADITIONAL_FORMAT | BFD_DETERMINISTIC_OUTPUT \ |
177 | . | BFD_COMPRESS_GABI) | |
6b6bc957 | 178 | . |
b6a1c03a AM |
179 | . {* Is the file descriptor being cached? That is, can it be closed as |
180 | . needed, and re-opened when accessed later? *} | |
181 | . unsigned int cacheable : 1; | |
182 | . | |
183 | . {* Marks whether there was a default target specified when the | |
184 | . BFD was opened. This is used to select which matching algorithm | |
185 | . to use to choose the back end. *} | |
186 | . unsigned int target_defaulted : 1; | |
187 | . | |
188 | . {* ... and here: (``once'' means at least once). *} | |
189 | . unsigned int opened_once : 1; | |
190 | . | |
191 | . {* Set if we have a locally maintained mtime value, rather than | |
192 | . getting it from the file each time. *} | |
193 | . unsigned int mtime_set : 1; | |
194 | . | |
195 | . {* Flag set if symbols from this BFD should not be exported. *} | |
196 | . unsigned int no_export : 1; | |
197 | . | |
198 | . {* Remember when output has begun, to stop strange things | |
199 | . from happening. *} | |
200 | . unsigned int output_has_begun : 1; | |
201 | . | |
202 | . {* Have archive map. *} | |
203 | . unsigned int has_armap : 1; | |
204 | . | |
205 | . {* Set if this is a thin archive. *} | |
206 | . unsigned int is_thin_archive : 1; | |
207 | . | |
208 | . {* Set if only required symbols should be added in the link hash table for | |
209 | . this object. Used by VMS linkers. *} | |
210 | . unsigned int selective_search : 1; | |
211 | . | |
212 | . {* Set if this is the linker output BFD. *} | |
213 | . unsigned int is_linker_output : 1; | |
214 | . | |
f6fe1ccd L |
215 | . {* Set if this is the linker input BFD. *} |
216 | . unsigned int is_linker_input : 1; | |
217 | . | |
5ae0078c L |
218 | . {* If this is an input for a compiler plug-in library. *} |
219 | . ENUM_BITFIELD (bfd_plugin_format) plugin_format : 2; | |
220 | . | |
ce875075 AM |
221 | . {* Set if this is a plugin output file. *} |
222 | . unsigned int lto_output : 1; | |
223 | . | |
5ae0078c L |
224 | . {* Set to dummy BFD created when claimed by a compiler plug-in |
225 | . library. *} | |
226 | . bfd *plugin_dummy_bfd; | |
227 | . | |
b5f79c76 NC |
228 | . {* Currently my_archive is tested before adding origin to |
229 | . anything. I believe that this can become always an add of | |
230 | . origin, with origin set to 0 for non archive files. *} | |
231 | . ufile_ptr origin; | |
232 | . | |
a8da6403 NC |
233 | . {* The origin in the archive of the proxy entry. This will |
234 | . normally be the same as origin, except for thin archives, | |
235 | . when it will contain the current offset of the proxy in the | |
236 | . thin archive rather than the offset of the bfd in its actual | |
237 | . container. *} | |
238 | . ufile_ptr proxy_origin; | |
239 | . | |
b5f79c76 NC |
240 | . {* A hash table for section names. *} |
241 | . struct bfd_hash_table section_htab; | |
242 | . | |
243 | . {* Pointer to linked list of sections. *} | |
198beae2 | 244 | . struct bfd_section *sections; |
b5f79c76 | 245 | . |
5daa8fe7 L |
246 | . {* The last section on the section list. *} |
247 | . struct bfd_section *section_last; | |
b5f79c76 NC |
248 | . |
249 | . {* The number of sections. *} | |
250 | . unsigned int section_count; | |
251 | . | |
b6a1c03a AM |
252 | . {* A field used by _bfd_generic_link_add_archive_symbols. This will |
253 | . be used only for archive elements. *} | |
254 | . int archive_pass; | |
255 | . | |
b5f79c76 NC |
256 | . {* Stuff only useful for object files: |
257 | . The start address. *} | |
258 | . bfd_vma start_address; | |
259 | . | |
5c1d2f5f AM |
260 | . {* Symbol table for output BFD (with symcount entries). |
261 | . Also used by the linker to cache input BFD symbols. *} | |
fc0a2244 | 262 | . struct bfd_symbol **outsymbols; |
b5f79c76 | 263 | . |
b6a1c03a AM |
264 | . {* Used for input and output. *} |
265 | . unsigned int symcount; | |
266 | . | |
1f70368c DJ |
267 | . {* Used for slurped dynamic symbol tables. *} |
268 | . unsigned int dynsymcount; | |
269 | . | |
b5f79c76 NC |
270 | . {* Pointer to structure which contains architecture information. *} |
271 | . const struct bfd_arch_info *arch_info; | |
272 | . | |
273 | . {* Stuff only useful for archives. *} | |
c58b9523 | 274 | . void *arelt_data; |
2ce40c65 | 275 | . struct bfd *my_archive; {* The containing archive BFD. *} |
cc481421 | 276 | . struct bfd *archive_next; {* The next BFD in the archive. *} |
2ce40c65 | 277 | . struct bfd *archive_head; {* The first BFD in the archive. *} |
a8da6403 NC |
278 | . struct bfd *nested_archives; {* List of nested archive in a flattened |
279 | . thin archive. *} | |
252b5132 | 280 | . |
c72f2fb2 AM |
281 | . union { |
282 | . {* For input BFDs, a chain of BFDs involved in a link. *} | |
283 | . struct bfd *next; | |
284 | . {* For output BFD, the linker hash table. *} | |
285 | . struct bfd_link_hash_table *hash; | |
286 | . } link; | |
b5f79c76 | 287 | . |
b5f79c76 NC |
288 | . {* Used by the back end to hold private data. *} |
289 | . union | |
290 | . { | |
252b5132 RH |
291 | . struct aout_data_struct *aout_data; |
292 | . struct artdata *aout_ar_data; | |
293 | . struct _oasys_data *oasys_obj_data; | |
294 | . struct _oasys_ar_data *oasys_ar_data; | |
295 | . struct coff_tdata *coff_obj_data; | |
296 | . struct pe_tdata *pe_obj_data; | |
297 | . struct xcoff_tdata *xcoff_obj_data; | |
298 | . struct ecoff_tdata *ecoff_obj_data; | |
299 | . struct ieee_data_struct *ieee_data; | |
300 | . struct ieee_ar_data_struct *ieee_ar_data; | |
301 | . struct srec_data_struct *srec_data; | |
c067354b | 302 | . struct verilog_data_struct *verilog_data; |
252b5132 RH |
303 | . struct ihex_data_struct *ihex_data; |
304 | . struct tekhex_data_struct *tekhex_data; | |
305 | . struct elf_obj_tdata *elf_obj_data; | |
306 | . struct nlm_obj_tdata *nlm_obj_data; | |
307 | . struct bout_data_struct *bout_data; | |
3c3bdf30 | 308 | . struct mmo_data_struct *mmo_data; |
252b5132 RH |
309 | . struct sun_core_struct *sun_core_data; |
310 | . struct sco5_core_struct *sco5_core_data; | |
311 | . struct trad_core_struct *trad_core_data; | |
312 | . struct som_data_struct *som_data; | |
313 | . struct hpux_core_struct *hpux_core_data; | |
314 | . struct hppabsd_core_struct *hppabsd_core_data; | |
315 | . struct sgi_core_struct *sgi_core_data; | |
316 | . struct lynx_core_struct *lynx_core_data; | |
317 | . struct osf_core_struct *osf_core_data; | |
318 | . struct cisco_core_struct *cisco_core_data; | |
319 | . struct versados_data_struct *versados_data; | |
320 | . struct netbsd_core_struct *netbsd_core_data; | |
3af9a47b NC |
321 | . struct mach_o_data_struct *mach_o_data; |
322 | . struct mach_o_fat_data_struct *mach_o_fat_data; | |
ce3c775b | 323 | . struct plugin_data_struct *plugin_data; |
3af9a47b NC |
324 | . struct bfd_pef_data_struct *pef_data; |
325 | . struct bfd_pef_xlib_data_struct *pef_xlib_data; | |
326 | . struct bfd_sym_data_struct *sym_data; | |
c58b9523 | 327 | . void *any; |
b5f79c76 NC |
328 | . } |
329 | . tdata; | |
aebad5fe | 330 | . |
b5f79c76 | 331 | . {* Used by the application to hold private data. *} |
c58b9523 | 332 | . void *usrdata; |
252b5132 RH |
333 | . |
334 | . {* Where all the allocated stuff under this BFD goes. This is a | |
c58b9523 AM |
335 | . struct objalloc *, but we use void * to avoid requiring the inclusion |
336 | . of objalloc.h. *} | |
337 | . void *memory; | |
252b5132 RH |
338 | .}; |
339 | . | |
27b829ee NC |
340 | .{* See note beside bfd_set_section_userdata. *} |
341 | .static inline bfd_boolean | |
342 | .bfd_set_cacheable (bfd * abfd, bfd_boolean val) | |
343 | .{ | |
344 | . abfd->cacheable = val; | |
345 | . return TRUE; | |
346 | .} | |
347 | . | |
252b5132 RH |
348 | */ |
349 | ||
252b5132 | 350 | #include "sysdep.h" |
252b5132 | 351 | #include <stdarg.h> |
3db64b00 AM |
352 | #include "bfd.h" |
353 | #include "bfdver.h" | |
252b5132 | 354 | #include "libiberty.h" |
3fad56a3 | 355 | #include "demangle.h" |
3882b010 | 356 | #include "safe-ctype.h" |
252b5132 RH |
357 | #include "bfdlink.h" |
358 | #include "libbfd.h" | |
359 | #include "coff/internal.h" | |
360 | #include "coff/sym.h" | |
361 | #include "libcoff.h" | |
362 | #include "libecoff.h" | |
363 | #undef obj_symbols | |
364 | #include "elf-bfd.h" | |
3168356f AM |
365 | |
366 | #ifndef EXIT_FAILURE | |
367 | #define EXIT_FAILURE 1 | |
368 | #endif | |
369 | ||
252b5132 RH |
370 | \f |
371 | /* provide storage for subsystem, stack and heap data which may have been | |
372 | passed in on the command line. Ld puts this data into a bfd_link_info | |
373 | struct which ultimately gets passed in to the bfd. When it arrives, copy | |
374 | it to the following struct so that the data will be available in coffcode.h | |
375 | where it is needed. The typedef's used are defined in bfd.h */ | |
252b5132 RH |
376 | \f |
377 | /* | |
79bb5c23 NC |
378 | INODE |
379 | Error reporting, Miscellaneous, typedef bfd, BFD front end | |
380 | ||
252b5132 RH |
381 | SECTION |
382 | Error reporting | |
383 | ||
384 | Most BFD functions return nonzero on success (check their | |
385 | individual documentation for precise semantics). On an error, | |
386 | they call <<bfd_set_error>> to set an error condition that callers | |
387 | can check by calling <<bfd_get_error>>. | |
388 | If that returns <<bfd_error_system_call>>, then check | |
389 | <<errno>>. | |
390 | ||
391 | The easiest way to report a BFD error to the user is to | |
392 | use <<bfd_perror>>. | |
393 | ||
394 | SUBSECTION | |
395 | Type <<bfd_error_type>> | |
396 | ||
397 | The values returned by <<bfd_get_error>> are defined by the | |
398 | enumerated type <<bfd_error_type>>. | |
399 | ||
400 | CODE_FRAGMENT | |
401 | . | |
402 | .typedef enum bfd_error | |
403 | .{ | |
404 | . bfd_error_no_error = 0, | |
405 | . bfd_error_system_call, | |
406 | . bfd_error_invalid_target, | |
407 | . bfd_error_wrong_format, | |
3619ad04 | 408 | . bfd_error_wrong_object_format, |
252b5132 RH |
409 | . bfd_error_invalid_operation, |
410 | . bfd_error_no_memory, | |
411 | . bfd_error_no_symbols, | |
412 | . bfd_error_no_armap, | |
413 | . bfd_error_no_more_archived_files, | |
414 | . bfd_error_malformed_archive, | |
ff5ac77b | 415 | . bfd_error_missing_dso, |
252b5132 RH |
416 | . bfd_error_file_not_recognized, |
417 | . bfd_error_file_ambiguously_recognized, | |
418 | . bfd_error_no_contents, | |
419 | . bfd_error_nonrepresentable_section, | |
420 | . bfd_error_no_debug_section, | |
421 | . bfd_error_bad_value, | |
422 | . bfd_error_file_truncated, | |
423 | . bfd_error_file_too_big, | |
ffda70fc | 424 | . bfd_error_on_input, |
252b5132 | 425 | . bfd_error_invalid_error_code |
b5f79c76 NC |
426 | .} |
427 | .bfd_error_type; | |
252b5132 RH |
428 | . |
429 | */ | |
430 | ||
431 | static bfd_error_type bfd_error = bfd_error_no_error; | |
ffda70fc AM |
432 | static bfd *input_bfd = NULL; |
433 | static bfd_error_type input_error = bfd_error_no_error; | |
252b5132 | 434 | |
55ab10f0 NC |
435 | const char *const bfd_errmsgs[] = |
436 | { | |
437 | N_("No error"), | |
438 | N_("System call error"), | |
439 | N_("Invalid bfd target"), | |
440 | N_("File in wrong format"), | |
3619ad04 | 441 | N_("Archive object file in wrong format"), |
55ab10f0 NC |
442 | N_("Invalid operation"), |
443 | N_("Memory exhausted"), | |
444 | N_("No symbols"), | |
445 | N_("Archive has no index; run ranlib to add one"), | |
446 | N_("No more archived files"), | |
447 | N_("Malformed archive"), | |
ff5ac77b | 448 | N_("DSO missing from command line"), |
55ab10f0 NC |
449 | N_("File format not recognized"), |
450 | N_("File format is ambiguous"), | |
451 | N_("Section has no contents"), | |
452 | N_("Nonrepresentable section on output"), | |
453 | N_("Symbol needs debug section which does not exist"), | |
454 | N_("Bad value"), | |
455 | N_("File truncated"), | |
456 | N_("File too big"), | |
ffda70fc | 457 | N_("Error reading %s: %s"), |
55ab10f0 NC |
458 | N_("#<Invalid error code>") |
459 | }; | |
252b5132 RH |
460 | |
461 | /* | |
462 | FUNCTION | |
463 | bfd_get_error | |
464 | ||
465 | SYNOPSIS | |
466 | bfd_error_type bfd_get_error (void); | |
467 | ||
468 | DESCRIPTION | |
469 | Return the current BFD error condition. | |
470 | */ | |
471 | ||
472 | bfd_error_type | |
c58b9523 | 473 | bfd_get_error (void) |
252b5132 RH |
474 | { |
475 | return bfd_error; | |
476 | } | |
477 | ||
478 | /* | |
479 | FUNCTION | |
480 | bfd_set_error | |
481 | ||
482 | SYNOPSIS | |
ffda70fc | 483 | void bfd_set_error (bfd_error_type error_tag, ...); |
252b5132 RH |
484 | |
485 | DESCRIPTION | |
486 | Set the BFD error condition to be @var{error_tag}. | |
ffda70fc AM |
487 | If @var{error_tag} is bfd_error_on_input, then this function |
488 | takes two more parameters, the input bfd where the error | |
489 | occurred, and the bfd_error_type error. | |
252b5132 RH |
490 | */ |
491 | ||
492 | void | |
ffda70fc | 493 | bfd_set_error (bfd_error_type error_tag, ...) |
252b5132 RH |
494 | { |
495 | bfd_error = error_tag; | |
ffda70fc AM |
496 | if (error_tag == bfd_error_on_input) |
497 | { | |
498 | /* This is an error that occurred during bfd_close when | |
499 | writing an archive, but on one of the input files. */ | |
500 | va_list ap; | |
501 | ||
502 | va_start (ap, error_tag); | |
503 | input_bfd = va_arg (ap, bfd *); | |
a50b1753 | 504 | input_error = (bfd_error_type) va_arg (ap, int); |
ffda70fc AM |
505 | if (input_error >= bfd_error_on_input) |
506 | abort (); | |
507 | va_end (ap); | |
508 | } | |
252b5132 RH |
509 | } |
510 | ||
511 | /* | |
512 | FUNCTION | |
513 | bfd_errmsg | |
514 | ||
515 | SYNOPSIS | |
55ab10f0 | 516 | const char *bfd_errmsg (bfd_error_type error_tag); |
252b5132 RH |
517 | |
518 | DESCRIPTION | |
519 | Return a string describing the error @var{error_tag}, or | |
520 | the system error if @var{error_tag} is <<bfd_error_system_call>>. | |
521 | */ | |
522 | ||
55ab10f0 | 523 | const char * |
c58b9523 | 524 | bfd_errmsg (bfd_error_type error_tag) |
252b5132 RH |
525 | { |
526 | #ifndef errno | |
527 | extern int errno; | |
528 | #endif | |
ffda70fc AM |
529 | if (error_tag == bfd_error_on_input) |
530 | { | |
531 | char *buf; | |
532 | const char *msg = bfd_errmsg (input_error); | |
533 | ||
534 | if (asprintf (&buf, _(bfd_errmsgs [error_tag]), input_bfd->filename, msg) | |
535 | != -1) | |
536 | return buf; | |
537 | ||
538 | /* Ick, what to do on out of memory? */ | |
539 | return msg; | |
540 | } | |
541 | ||
252b5132 RH |
542 | if (error_tag == bfd_error_system_call) |
543 | return xstrerror (errno); | |
544 | ||
c58b9523 AM |
545 | if (error_tag > bfd_error_invalid_error_code) |
546 | error_tag = bfd_error_invalid_error_code; /* sanity check */ | |
252b5132 | 547 | |
c58b9523 | 548 | return _(bfd_errmsgs [error_tag]); |
252b5132 RH |
549 | } |
550 | ||
551 | /* | |
552 | FUNCTION | |
553 | bfd_perror | |
554 | ||
555 | SYNOPSIS | |
55ab10f0 | 556 | void bfd_perror (const char *message); |
252b5132 RH |
557 | |
558 | DESCRIPTION | |
559 | Print to the standard error stream a string describing the | |
560 | last BFD error that occurred, or the last system error if | |
561 | the last BFD error was a system call failure. If @var{message} | |
562 | is non-NULL and non-empty, the error string printed is preceded | |
563 | by @var{message}, a colon, and a space. It is followed by a newline. | |
564 | */ | |
565 | ||
566 | void | |
c58b9523 | 567 | bfd_perror (const char *message) |
252b5132 | 568 | { |
4a97a0e5 | 569 | fflush (stdout); |
ffda70fc AM |
570 | if (message == NULL || *message == '\0') |
571 | fprintf (stderr, "%s\n", bfd_errmsg (bfd_get_error ())); | |
55ab10f0 | 572 | else |
ffda70fc | 573 | fprintf (stderr, "%s: %s\n", message, bfd_errmsg (bfd_get_error ())); |
4a97a0e5 | 574 | fflush (stderr); |
252b5132 RH |
575 | } |
576 | ||
577 | /* | |
578 | SUBSECTION | |
579 | BFD error handler | |
580 | ||
581 | Some BFD functions want to print messages describing the | |
582 | problem. They call a BFD error handler function. This | |
5c4491d3 | 583 | function may be overridden by the program. |
252b5132 RH |
584 | |
585 | The BFD error handler acts like printf. | |
586 | ||
587 | CODE_FRAGMENT | |
588 | . | |
c58b9523 | 589 | .typedef void (*bfd_error_handler_type) (const char *, ...); |
252b5132 RH |
590 | . |
591 | */ | |
592 | ||
593 | /* The program name used when printing BFD error messages. */ | |
594 | ||
595 | static const char *_bfd_error_program_name; | |
596 | ||
d003868e AM |
597 | /* This is the default routine to handle BFD error messages. |
598 | Like fprintf (stderr, ...), but also handles some extra format specifiers. | |
599 | ||
600 | %A section name from section. For group components, print group name too. | |
601 | %B file name from bfd. For archive components, prints archive too. | |
d07676f8 NC |
602 | |
603 | Note - because these two extra format specifiers require special handling | |
604 | they are scanned for and processed in this function, before calling | |
605 | vfprintf. This means that the *arguments* for these format specifiers | |
606 | must be the first ones in the variable argument list, regardless of where | |
607 | the specifiers appear in the format string. Thus for example calling | |
608 | this function with a format string of: | |
609 | ||
610 | "blah %s blah %A blah %d blah %B" | |
611 | ||
612 | would involve passing the arguments as: | |
613 | ||
614 | "blah %s blah %A blah %d blah %B", | |
615 | asection_for_the_%A, | |
616 | bfd_for_the_%B, | |
617 | string_for_the_%s, | |
618 | integer_for_the_%d); | |
d003868e | 619 | */ |
252b5132 | 620 | |
185d09ad | 621 | void |
d003868e | 622 | _bfd_default_error_handler (const char *fmt, ...) |
252b5132 | 623 | { |
d003868e AM |
624 | va_list ap; |
625 | char *bufp; | |
626 | const char *new_fmt, *p; | |
627 | size_t avail = 1000; | |
628 | char buf[1000]; | |
c58b9523 | 629 | |
0bc43230 AM |
630 | /* PR 4992: Don't interrupt output being sent to stdout. */ |
631 | fflush (stdout); | |
632 | ||
252b5132 RH |
633 | if (_bfd_error_program_name != NULL) |
634 | fprintf (stderr, "%s: ", _bfd_error_program_name); | |
635 | else | |
636 | fprintf (stderr, "BFD: "); | |
637 | ||
d003868e AM |
638 | va_start (ap, fmt); |
639 | new_fmt = fmt; | |
640 | bufp = buf; | |
641 | ||
642 | /* Reserve enough space for the existing format string. */ | |
643 | avail -= strlen (fmt) + 1; | |
644 | if (avail > 1000) | |
3168356f | 645 | _exit (EXIT_FAILURE); |
d003868e AM |
646 | |
647 | p = fmt; | |
3e540f25 | 648 | while (1) |
d003868e AM |
649 | { |
650 | char *q; | |
651 | size_t len, extra, trim; | |
652 | ||
653 | p = strchr (p, '%'); | |
654 | if (p == NULL || p[1] == '\0') | |
655 | { | |
656 | if (new_fmt == buf) | |
657 | { | |
658 | len = strlen (fmt); | |
659 | memcpy (bufp, fmt, len + 1); | |
660 | } | |
661 | break; | |
662 | } | |
663 | ||
664 | if (p[1] == 'A' || p[1] == 'B') | |
665 | { | |
666 | len = p - fmt; | |
667 | memcpy (bufp, fmt, len); | |
668 | bufp += len; | |
669 | fmt = p + 2; | |
670 | new_fmt = buf; | |
671 | ||
672 | /* If we run out of space, tough, you lose your ridiculously | |
673 | long file or section name. It's not safe to try to alloc | |
674 | memory here; We might be printing an out of memory message. */ | |
675 | if (avail == 0) | |
676 | { | |
677 | *bufp++ = '*'; | |
678 | *bufp++ = '*'; | |
679 | *bufp = '\0'; | |
680 | } | |
681 | else | |
682 | { | |
683 | if (p[1] == 'B') | |
684 | { | |
685 | bfd *abfd = va_arg (ap, bfd *); | |
d07676f8 NC |
686 | |
687 | if (abfd == NULL) | |
688 | /* Invoking %B with a null bfd pointer is an internal error. */ | |
689 | abort (); | |
690 | else if (abfd->my_archive) | |
d003868e AM |
691 | snprintf (bufp, avail, "%s(%s)", |
692 | abfd->my_archive->filename, abfd->filename); | |
693 | else | |
694 | snprintf (bufp, avail, "%s", abfd->filename); | |
695 | } | |
696 | else | |
697 | { | |
698 | asection *sec = va_arg (ap, asection *); | |
d07676f8 | 699 | bfd *abfd; |
d003868e AM |
700 | const char *group = NULL; |
701 | struct coff_comdat_info *ci; | |
702 | ||
d07676f8 NC |
703 | if (sec == NULL) |
704 | /* Invoking %A with a null section pointer is an internal error. */ | |
705 | abort (); | |
706 | abfd = sec->owner; | |
d003868e AM |
707 | if (abfd != NULL |
708 | && bfd_get_flavour (abfd) == bfd_target_elf_flavour | |
709 | && elf_next_in_group (sec) != NULL | |
710 | && (sec->flags & SEC_GROUP) == 0) | |
711 | group = elf_group_name (sec); | |
712 | else if (abfd != NULL | |
713 | && bfd_get_flavour (abfd) == bfd_target_coff_flavour | |
714 | && (ci = bfd_coff_get_comdat_section (sec->owner, | |
715 | sec)) != NULL) | |
716 | group = ci->name; | |
717 | if (group != NULL) | |
718 | snprintf (bufp, avail, "%s[%s]", sec->name, group); | |
719 | else | |
720 | snprintf (bufp, avail, "%s", sec->name); | |
721 | } | |
722 | len = strlen (bufp); | |
723 | avail = avail - len + 2; | |
724 | ||
725 | /* We need to replace any '%' we printed by "%%". | |
726 | First count how many. */ | |
727 | q = bufp; | |
728 | bufp += len; | |
729 | extra = 0; | |
730 | while ((q = strchr (q, '%')) != NULL) | |
731 | { | |
732 | ++q; | |
733 | ++extra; | |
734 | } | |
735 | ||
736 | /* If there isn't room, trim off the end of the string. */ | |
737 | q = bufp; | |
738 | bufp += extra; | |
739 | if (extra > avail) | |
740 | { | |
741 | trim = extra - avail; | |
742 | bufp -= trim; | |
743 | do | |
744 | { | |
745 | if (*--q == '%') | |
746 | --extra; | |
747 | } | |
748 | while (--trim != 0); | |
749 | *q = '\0'; | |
45fc9e4a | 750 | avail = extra; |
d003868e | 751 | } |
45fc9e4a | 752 | avail -= extra; |
d003868e AM |
753 | |
754 | /* Now double all '%' chars, shuffling the string as we go. */ | |
755 | while (extra != 0) | |
756 | { | |
757 | while ((q[extra] = *q) != '%') | |
758 | --q; | |
759 | q[--extra] = '%'; | |
760 | --q; | |
761 | } | |
762 | } | |
763 | } | |
764 | p = p + 2; | |
765 | } | |
766 | ||
767 | vfprintf (stderr, new_fmt, ap); | |
768 | va_end (ap); | |
252b5132 | 769 | |
ceae87f3 JB |
770 | /* On AIX, putc is implemented as a macro that triggers a -Wunused-value |
771 | warning, so use the fputc function to avoid it. */ | |
772 | fputc ('\n', stderr); | |
4a97a0e5 | 773 | fflush (stderr); |
252b5132 RH |
774 | } |
775 | ||
252b5132 RH |
776 | /* This is a function pointer to the routine which should handle BFD |
777 | error messages. It is called when a BFD routine encounters an | |
778 | error for which it wants to print a message. Going through a | |
779 | function pointer permits a program linked against BFD to intercept | |
780 | the messages and deal with them itself. */ | |
781 | ||
782 | bfd_error_handler_type _bfd_error_handler = _bfd_default_error_handler; | |
783 | ||
784 | /* | |
785 | FUNCTION | |
786 | bfd_set_error_handler | |
787 | ||
788 | SYNOPSIS | |
789 | bfd_error_handler_type bfd_set_error_handler (bfd_error_handler_type); | |
790 | ||
791 | DESCRIPTION | |
792 | Set the BFD error handler function. Returns the previous | |
793 | function. | |
794 | */ | |
795 | ||
796 | bfd_error_handler_type | |
c58b9523 | 797 | bfd_set_error_handler (bfd_error_handler_type pnew) |
252b5132 RH |
798 | { |
799 | bfd_error_handler_type pold; | |
800 | ||
801 | pold = _bfd_error_handler; | |
802 | _bfd_error_handler = pnew; | |
803 | return pold; | |
804 | } | |
805 | ||
806 | /* | |
807 | FUNCTION | |
808 | bfd_set_error_program_name | |
809 | ||
810 | SYNOPSIS | |
811 | void bfd_set_error_program_name (const char *); | |
812 | ||
813 | DESCRIPTION | |
814 | Set the program name to use when printing a BFD error. This | |
815 | is printed before the error message followed by a colon and | |
816 | space. The string must not be changed after it is passed to | |
817 | this function. | |
818 | */ | |
819 | ||
820 | void | |
c58b9523 | 821 | bfd_set_error_program_name (const char *name) |
252b5132 RH |
822 | { |
823 | _bfd_error_program_name = name; | |
824 | } | |
825 | ||
252b5132 RH |
826 | /* |
827 | FUNCTION | |
828 | bfd_get_error_handler | |
829 | ||
830 | SYNOPSIS | |
831 | bfd_error_handler_type bfd_get_error_handler (void); | |
832 | ||
833 | DESCRIPTION | |
834 | Return the BFD error handler function. | |
835 | */ | |
836 | ||
837 | bfd_error_handler_type | |
c58b9523 | 838 | bfd_get_error_handler (void) |
252b5132 RH |
839 | { |
840 | return _bfd_error_handler; | |
841 | } | |
2b56b3f3 HPN |
842 | |
843 | /* | |
844 | SUBSECTION | |
845 | BFD assert handler | |
846 | ||
847 | If BFD finds an internal inconsistency, the bfd assert | |
848 | handler is called with information on the BFD version, BFD | |
849 | source file and line. If this happens, most programs linked | |
850 | against BFD are expected to want to exit with an error, or mark | |
851 | the current BFD operation as failed, so it is recommended to | |
852 | override the default handler, which just calls | |
853 | _bfd_error_handler and continues. | |
854 | ||
855 | CODE_FRAGMENT | |
856 | . | |
857 | .typedef void (*bfd_assert_handler_type) (const char *bfd_formatmsg, | |
858 | . const char *bfd_version, | |
859 | . const char *bfd_file, | |
860 | . int bfd_line); | |
861 | . | |
862 | */ | |
863 | ||
864 | /* Note the use of bfd_ prefix on the parameter names above: we want to | |
865 | show which one is the message and which is the version by naming the | |
866 | parameters, but avoid polluting the program-using-bfd namespace as | |
867 | the typedef is visible in the exported headers that the program | |
868 | includes. Below, it's just for consistency. */ | |
869 | ||
870 | static void | |
871 | _bfd_default_assert_handler (const char *bfd_formatmsg, | |
872 | const char *bfd_version, | |
873 | const char *bfd_file, | |
874 | int bfd_line) | |
875 | ||
876 | { | |
877 | (*_bfd_error_handler) (bfd_formatmsg, bfd_version, bfd_file, bfd_line); | |
878 | } | |
879 | ||
880 | /* Similar to _bfd_error_handler, a program can decide to exit on an | |
881 | internal BFD error. We use a non-variadic type to simplify passing | |
882 | on parameters to other functions, e.g. _bfd_error_handler. */ | |
883 | ||
884 | bfd_assert_handler_type _bfd_assert_handler = _bfd_default_assert_handler; | |
885 | ||
886 | /* | |
887 | FUNCTION | |
888 | bfd_set_assert_handler | |
889 | ||
890 | SYNOPSIS | |
891 | bfd_assert_handler_type bfd_set_assert_handler (bfd_assert_handler_type); | |
892 | ||
893 | DESCRIPTION | |
894 | Set the BFD assert handler function. Returns the previous | |
895 | function. | |
896 | */ | |
897 | ||
898 | bfd_assert_handler_type | |
899 | bfd_set_assert_handler (bfd_assert_handler_type pnew) | |
900 | { | |
901 | bfd_assert_handler_type pold; | |
902 | ||
903 | pold = _bfd_assert_handler; | |
904 | _bfd_assert_handler = pnew; | |
905 | return pold; | |
906 | } | |
907 | ||
908 | /* | |
909 | FUNCTION | |
910 | bfd_get_assert_handler | |
911 | ||
912 | SYNOPSIS | |
913 | bfd_assert_handler_type bfd_get_assert_handler (void); | |
914 | ||
915 | DESCRIPTION | |
916 | Return the BFD assert handler function. | |
917 | */ | |
918 | ||
919 | bfd_assert_handler_type | |
920 | bfd_get_assert_handler (void) | |
921 | { | |
922 | return _bfd_assert_handler; | |
923 | } | |
252b5132 RH |
924 | \f |
925 | /* | |
79bb5c23 NC |
926 | INODE |
927 | Miscellaneous, Memory Usage, Error reporting, BFD front end | |
928 | ||
252b5132 | 929 | SECTION |
1b74d094 BW |
930 | Miscellaneous |
931 | ||
932 | SUBSECTION | |
933 | Miscellaneous functions | |
252b5132 RH |
934 | */ |
935 | ||
936 | /* | |
937 | FUNCTION | |
938 | bfd_get_reloc_upper_bound | |
939 | ||
940 | SYNOPSIS | |
ed781d5d | 941 | long bfd_get_reloc_upper_bound (bfd *abfd, asection *sect); |
252b5132 RH |
942 | |
943 | DESCRIPTION | |
944 | Return the number of bytes required to store the | |
945 | relocation information associated with section @var{sect} | |
946 | attached to bfd @var{abfd}. If an error occurs, return -1. | |
947 | ||
948 | */ | |
949 | ||
252b5132 | 950 | long |
c58b9523 | 951 | bfd_get_reloc_upper_bound (bfd *abfd, sec_ptr asect) |
252b5132 | 952 | { |
55ab10f0 NC |
953 | if (abfd->format != bfd_object) |
954 | { | |
955 | bfd_set_error (bfd_error_invalid_operation); | |
956 | return -1; | |
957 | } | |
252b5132 RH |
958 | |
959 | return BFD_SEND (abfd, _get_reloc_upper_bound, (abfd, asect)); | |
960 | } | |
961 | ||
962 | /* | |
963 | FUNCTION | |
964 | bfd_canonicalize_reloc | |
965 | ||
966 | SYNOPSIS | |
967 | long bfd_canonicalize_reloc | |
c58b9523 | 968 | (bfd *abfd, asection *sec, arelent **loc, asymbol **syms); |
252b5132 RH |
969 | |
970 | DESCRIPTION | |
971 | Call the back end associated with the open BFD | |
972 | @var{abfd} and translate the external form of the relocation | |
973 | information attached to @var{sec} into the internal canonical | |
974 | form. Place the table into memory at @var{loc}, which has | |
975 | been preallocated, usually by a call to | |
976 | <<bfd_get_reloc_upper_bound>>. Returns the number of relocs, or | |
977 | -1 on error. | |
978 | ||
979 | The @var{syms} table is also needed for horrible internal magic | |
980 | reasons. | |
981 | ||
252b5132 RH |
982 | */ |
983 | long | |
c58b9523 AM |
984 | bfd_canonicalize_reloc (bfd *abfd, |
985 | sec_ptr asect, | |
986 | arelent **location, | |
987 | asymbol **symbols) | |
252b5132 | 988 | { |
55ab10f0 NC |
989 | if (abfd->format != bfd_object) |
990 | { | |
991 | bfd_set_error (bfd_error_invalid_operation); | |
992 | return -1; | |
993 | } | |
994 | ||
252b5132 RH |
995 | return BFD_SEND (abfd, _bfd_canonicalize_reloc, |
996 | (abfd, asect, location, symbols)); | |
997 | } | |
998 | ||
999 | /* | |
1000 | FUNCTION | |
1001 | bfd_set_reloc | |
1002 | ||
1003 | SYNOPSIS | |
1004 | void bfd_set_reloc | |
b5f79c76 | 1005 | (bfd *abfd, asection *sec, arelent **rel, unsigned int count); |
252b5132 RH |
1006 | |
1007 | DESCRIPTION | |
1008 | Set the relocation pointer and count within | |
1009 | section @var{sec} to the values @var{rel} and @var{count}. | |
1010 | The argument @var{abfd} is ignored. | |
1011 | ||
1012 | */ | |
aebad5fe | 1013 | |
252b5132 | 1014 | void |
c58b9523 AM |
1015 | bfd_set_reloc (bfd *ignore_abfd ATTRIBUTE_UNUSED, |
1016 | sec_ptr asect, | |
1017 | arelent **location, | |
1018 | unsigned int count) | |
252b5132 RH |
1019 | { |
1020 | asect->orelocation = location; | |
1021 | asect->reloc_count = count; | |
1022 | } | |
1023 | ||
1024 | /* | |
1025 | FUNCTION | |
1026 | bfd_set_file_flags | |
1027 | ||
1028 | SYNOPSIS | |
ed781d5d | 1029 | bfd_boolean bfd_set_file_flags (bfd *abfd, flagword flags); |
252b5132 RH |
1030 | |
1031 | DESCRIPTION | |
1032 | Set the flag word in the BFD @var{abfd} to the value @var{flags}. | |
1033 | ||
1034 | Possible errors are: | |
1035 | o <<bfd_error_wrong_format>> - The target bfd was not of object format. | |
1036 | o <<bfd_error_invalid_operation>> - The target bfd was open for reading. | |
1037 | o <<bfd_error_invalid_operation>> - | |
1038 | The flag word contained a bit which was not applicable to the | |
1039 | type of file. E.g., an attempt was made to set the <<D_PAGED>> bit | |
1040 | on a BFD format which does not support demand paging. | |
1041 | ||
1042 | */ | |
1043 | ||
b34976b6 | 1044 | bfd_boolean |
c58b9523 | 1045 | bfd_set_file_flags (bfd *abfd, flagword flags) |
252b5132 | 1046 | { |
55ab10f0 NC |
1047 | if (abfd->format != bfd_object) |
1048 | { | |
1049 | bfd_set_error (bfd_error_wrong_format); | |
b34976b6 | 1050 | return FALSE; |
55ab10f0 | 1051 | } |
252b5132 | 1052 | |
55ab10f0 NC |
1053 | if (bfd_read_p (abfd)) |
1054 | { | |
1055 | bfd_set_error (bfd_error_invalid_operation); | |
b34976b6 | 1056 | return FALSE; |
55ab10f0 | 1057 | } |
252b5132 RH |
1058 | |
1059 | bfd_get_file_flags (abfd) = flags; | |
55ab10f0 NC |
1060 | if ((flags & bfd_applicable_file_flags (abfd)) != flags) |
1061 | { | |
1062 | bfd_set_error (bfd_error_invalid_operation); | |
b34976b6 | 1063 | return FALSE; |
55ab10f0 | 1064 | } |
252b5132 | 1065 | |
b34976b6 | 1066 | return TRUE; |
252b5132 RH |
1067 | } |
1068 | ||
1069 | void | |
c58b9523 | 1070 | bfd_assert (const char *file, int line) |
252b5132 | 1071 | { |
2b56b3f3 HPN |
1072 | (*_bfd_assert_handler) (_("BFD %s assertion fail %s:%d"), |
1073 | BFD_VERSION_STRING, file, line); | |
252b5132 RH |
1074 | } |
1075 | ||
c0bed66d ILT |
1076 | /* A more or less friendly abort message. In libbfd.h abort is |
1077 | defined to call this function. */ | |
1078 | ||
c0bed66d | 1079 | void |
c58b9523 | 1080 | _bfd_abort (const char *file, int line, const char *fn) |
c0bed66d ILT |
1081 | { |
1082 | if (fn != NULL) | |
1083 | (*_bfd_error_handler) | |
aec2f561 AM |
1084 | (_("BFD %s internal error, aborting at %s line %d in %s\n"), |
1085 | BFD_VERSION_STRING, file, line, fn); | |
c0bed66d ILT |
1086 | else |
1087 | (*_bfd_error_handler) | |
391154e9 | 1088 | (_("BFD %s internal error, aborting at %s line %d\n"), |
aec2f561 | 1089 | BFD_VERSION_STRING, file, line); |
c0bed66d | 1090 | (*_bfd_error_handler) (_("Please report this bug.\n")); |
3168356f | 1091 | _exit (EXIT_FAILURE); |
c0bed66d | 1092 | } |
252b5132 | 1093 | |
125c4a69 NC |
1094 | /* |
1095 | FUNCTION | |
1096 | bfd_get_arch_size | |
1097 | ||
1098 | SYNOPSIS | |
1099 | int bfd_get_arch_size (bfd *abfd); | |
1100 | ||
1101 | DESCRIPTION | |
4ef27e04 TG |
1102 | Returns the normalized architecture address size, in bits, as |
1103 | determined by the object file's format. By normalized, we mean | |
1104 | either 32 or 64. For ELF, this information is included in the | |
1105 | header. Use bfd_arch_bits_per_address for number of bits in | |
1106 | the architecture address. | |
125c4a69 NC |
1107 | |
1108 | RETURNS | |
1109 | Returns the arch size in bits if known, <<-1>> otherwise. | |
1110 | */ | |
1111 | ||
1112 | int | |
c58b9523 | 1113 | bfd_get_arch_size (bfd *abfd) |
125c4a69 NC |
1114 | { |
1115 | if (abfd->xvec->flavour == bfd_target_elf_flavour) | |
c58b9523 | 1116 | return get_elf_backend_data (abfd)->s->arch_size; |
125c4a69 | 1117 | |
4ef27e04 | 1118 | return bfd_arch_bits_per_address (abfd) > 32 ? 64 : 32; |
125c4a69 NC |
1119 | } |
1120 | ||
1121 | /* | |
1122 | FUNCTION | |
1123 | bfd_get_sign_extend_vma | |
1124 | ||
1125 | SYNOPSIS | |
1126 | int bfd_get_sign_extend_vma (bfd *abfd); | |
1127 | ||
1128 | DESCRIPTION | |
1129 | Indicates if the target architecture "naturally" sign extends | |
1130 | an address. Some architectures implicitly sign extend address | |
1131 | values when they are converted to types larger than the size | |
1132 | of an address. For instance, bfd_get_start_address() will | |
1133 | return an address sign extended to fill a bfd_vma when this is | |
1134 | the case. | |
1135 | ||
1136 | RETURNS | |
1137 | Returns <<1>> if the target architecture is known to sign | |
1138 | extend addresses, <<0>> if the target architecture is known to | |
1139 | not sign extend addresses, and <<-1>> otherwise. | |
1140 | */ | |
1141 | ||
1142 | int | |
c58b9523 | 1143 | bfd_get_sign_extend_vma (bfd *abfd) |
125c4a69 | 1144 | { |
f47e5071 NC |
1145 | char *name; |
1146 | ||
125c4a69 | 1147 | if (bfd_get_flavour (abfd) == bfd_target_elf_flavour) |
c58b9523 | 1148 | return get_elf_backend_data (abfd)->sign_extend_vma; |
125c4a69 | 1149 | |
f47e5071 NC |
1150 | name = bfd_get_target (abfd); |
1151 | ||
7148cc28 | 1152 | /* Return a proper value for DJGPP & PE COFF. |
f47e5071 NC |
1153 | This function is required for DWARF2 support, but there is |
1154 | no place to store this information in the COFF back end. | |
1155 | Should enough other COFF targets add support for DWARF2, | |
1156 | a place will have to be found. Until then, this hack will do. */ | |
0112cd26 | 1157 | if (CONST_STRNEQ (name, "coff-go32") |
8a7140c3 | 1158 | || strcmp (name, "pe-i386") == 0 |
f0927246 | 1159 | || strcmp (name, "pei-i386") == 0 |
6e3d6dc1 NC |
1160 | || strcmp (name, "pe-x86-64") == 0 |
1161 | || strcmp (name, "pei-x86-64") == 0 | |
7148cc28 | 1162 | || strcmp (name, "pe-arm-wince-little") == 0 |
8076289e TG |
1163 | || strcmp (name, "pei-arm-wince-little") == 0 |
1164 | || strcmp (name, "aixcoff-rs6000") == 0) | |
f47e5071 NC |
1165 | return 1; |
1166 | ||
09c6f846 TG |
1167 | if (CONST_STRNEQ (name, "mach-o")) |
1168 | return 0; | |
1169 | ||
a022216b | 1170 | bfd_set_error (bfd_error_wrong_format); |
125c4a69 NC |
1171 | return -1; |
1172 | } | |
1173 | ||
252b5132 RH |
1174 | /* |
1175 | FUNCTION | |
1176 | bfd_set_start_address | |
1177 | ||
1178 | SYNOPSIS | |
ed781d5d | 1179 | bfd_boolean bfd_set_start_address (bfd *abfd, bfd_vma vma); |
252b5132 RH |
1180 | |
1181 | DESCRIPTION | |
1182 | Make @var{vma} the entry point of output BFD @var{abfd}. | |
1183 | ||
1184 | RETURNS | |
b34976b6 | 1185 | Returns <<TRUE>> on success, <<FALSE>> otherwise. |
252b5132 RH |
1186 | */ |
1187 | ||
b34976b6 | 1188 | bfd_boolean |
c58b9523 | 1189 | bfd_set_start_address (bfd *abfd, bfd_vma vma) |
252b5132 RH |
1190 | { |
1191 | abfd->start_address = vma; | |
b34976b6 | 1192 | return TRUE; |
252b5132 RH |
1193 | } |
1194 | ||
252b5132 RH |
1195 | /* |
1196 | FUNCTION | |
1197 | bfd_get_gp_size | |
1198 | ||
1199 | SYNOPSIS | |
ed781d5d | 1200 | unsigned int bfd_get_gp_size (bfd *abfd); |
252b5132 RH |
1201 | |
1202 | DESCRIPTION | |
1203 | Return the maximum size of objects to be optimized using the GP | |
1204 | register under MIPS ECOFF. This is typically set by the <<-G>> | |
1205 | argument to the compiler, assembler or linker. | |
1206 | */ | |
1207 | ||
c0846b23 | 1208 | unsigned int |
c58b9523 | 1209 | bfd_get_gp_size (bfd *abfd) |
252b5132 RH |
1210 | { |
1211 | if (abfd->format == bfd_object) | |
1212 | { | |
1213 | if (abfd->xvec->flavour == bfd_target_ecoff_flavour) | |
1214 | return ecoff_data (abfd)->gp_size; | |
1215 | else if (abfd->xvec->flavour == bfd_target_elf_flavour) | |
1216 | return elf_gp_size (abfd); | |
1217 | } | |
1218 | return 0; | |
1219 | } | |
1220 | ||
1221 | /* | |
1222 | FUNCTION | |
1223 | bfd_set_gp_size | |
1224 | ||
1225 | SYNOPSIS | |
ed781d5d | 1226 | void bfd_set_gp_size (bfd *abfd, unsigned int i); |
252b5132 RH |
1227 | |
1228 | DESCRIPTION | |
1229 | Set the maximum size of objects to be optimized using the GP | |
1230 | register under ECOFF or MIPS ELF. This is typically set by | |
1231 | the <<-G>> argument to the compiler, assembler or linker. | |
1232 | */ | |
1233 | ||
1234 | void | |
c58b9523 | 1235 | bfd_set_gp_size (bfd *abfd, unsigned int i) |
252b5132 | 1236 | { |
55ab10f0 | 1237 | /* Don't try to set GP size on an archive or core file! */ |
252b5132 RH |
1238 | if (abfd->format != bfd_object) |
1239 | return; | |
55ab10f0 | 1240 | |
252b5132 RH |
1241 | if (abfd->xvec->flavour == bfd_target_ecoff_flavour) |
1242 | ecoff_data (abfd)->gp_size = i; | |
1243 | else if (abfd->xvec->flavour == bfd_target_elf_flavour) | |
1244 | elf_gp_size (abfd) = i; | |
1245 | } | |
1246 | ||
1247 | /* Get the GP value. This is an internal function used by some of the | |
1248 | relocation special_function routines on targets which support a GP | |
1249 | register. */ | |
1250 | ||
1251 | bfd_vma | |
c58b9523 | 1252 | _bfd_get_gp_value (bfd *abfd) |
252b5132 | 1253 | { |
9bcf4de0 TS |
1254 | if (! abfd) |
1255 | return 0; | |
55ab10f0 NC |
1256 | if (abfd->format != bfd_object) |
1257 | return 0; | |
1258 | ||
1259 | if (abfd->xvec->flavour == bfd_target_ecoff_flavour) | |
1260 | return ecoff_data (abfd)->gp; | |
1261 | else if (abfd->xvec->flavour == bfd_target_elf_flavour) | |
1262 | return elf_gp (abfd); | |
1263 | ||
252b5132 RH |
1264 | return 0; |
1265 | } | |
1266 | ||
1267 | /* Set the GP value. */ | |
1268 | ||
1269 | void | |
c58b9523 | 1270 | _bfd_set_gp_value (bfd *abfd, bfd_vma v) |
252b5132 | 1271 | { |
9bcf4de0 | 1272 | if (! abfd) |
c2c96631 | 1273 | abort (); |
252b5132 RH |
1274 | if (abfd->format != bfd_object) |
1275 | return; | |
55ab10f0 | 1276 | |
252b5132 RH |
1277 | if (abfd->xvec->flavour == bfd_target_ecoff_flavour) |
1278 | ecoff_data (abfd)->gp = v; | |
1279 | else if (abfd->xvec->flavour == bfd_target_elf_flavour) | |
1280 | elf_gp (abfd) = v; | |
1281 | } | |
1282 | ||
1283 | /* | |
1284 | FUNCTION | |
1285 | bfd_scan_vma | |
1286 | ||
1287 | SYNOPSIS | |
ed781d5d | 1288 | bfd_vma bfd_scan_vma (const char *string, const char **end, int base); |
252b5132 RH |
1289 | |
1290 | DESCRIPTION | |
1291 | Convert, like <<strtoul>>, a numerical expression | |
1292 | @var{string} into a <<bfd_vma>> integer, and return that integer. | |
1293 | (Though without as many bells and whistles as <<strtoul>>.) | |
1294 | The expression is assumed to be unsigned (i.e., positive). | |
1295 | If given a @var{base}, it is used as the base for conversion. | |
1296 | A base of 0 causes the function to interpret the string | |
1297 | in hex if a leading "0x" or "0X" is found, otherwise | |
1298 | in octal if a leading zero is found, otherwise in decimal. | |
1299 | ||
88eaccc2 AM |
1300 | If the value would overflow, the maximum <<bfd_vma>> value is |
1301 | returned. | |
252b5132 RH |
1302 | */ |
1303 | ||
1304 | bfd_vma | |
c58b9523 | 1305 | bfd_scan_vma (const char *string, const char **end, int base) |
252b5132 RH |
1306 | { |
1307 | bfd_vma value; | |
88eaccc2 AM |
1308 | bfd_vma cutoff; |
1309 | unsigned int cutlim; | |
1310 | int overflow; | |
252b5132 RH |
1311 | |
1312 | /* Let the host do it if possible. */ | |
eb6e10cb | 1313 | if (sizeof (bfd_vma) <= sizeof (unsigned long)) |
c58b9523 | 1314 | return strtoul (string, (char **) end, base); |
252b5132 | 1315 | |
49c97a80 ILT |
1316 | #ifdef HAVE_STRTOULL |
1317 | if (sizeof (bfd_vma) <= sizeof (unsigned long long)) | |
1318 | return strtoull (string, (char **) end, base); | |
1319 | #endif | |
1320 | ||
252b5132 RH |
1321 | if (base == 0) |
1322 | { | |
1323 | if (string[0] == '0') | |
1324 | { | |
1325 | if ((string[1] == 'x') || (string[1] == 'X')) | |
1326 | base = 16; | |
252b5132 RH |
1327 | else |
1328 | base = 8; | |
1329 | } | |
252b5132 | 1330 | } |
55ab10f0 | 1331 | |
88eaccc2 AM |
1332 | if ((base < 2) || (base > 36)) |
1333 | base = 10; | |
1334 | ||
1335 | if (base == 16 | |
1336 | && string[0] == '0' | |
1337 | && (string[1] == 'x' || string[1] == 'X') | |
1338 | && ISXDIGIT (string[2])) | |
1339 | { | |
1340 | string += 2; | |
1341 | } | |
aebad5fe | 1342 | |
88eaccc2 AM |
1343 | cutoff = (~ (bfd_vma) 0) / (bfd_vma) base; |
1344 | cutlim = (~ (bfd_vma) 0) % (bfd_vma) base; | |
1345 | value = 0; | |
1346 | overflow = 0; | |
1347 | while (1) | |
1348 | { | |
1349 | unsigned int digit; | |
1350 | ||
1351 | digit = *string; | |
1352 | if (ISDIGIT (digit)) | |
1353 | digit = digit - '0'; | |
1354 | else if (ISALPHA (digit)) | |
1355 | digit = TOUPPER (digit) - 'A' + 10; | |
1356 | else | |
1357 | break; | |
1358 | if (digit >= (unsigned int) base) | |
1359 | break; | |
1360 | if (value > cutoff || (value == cutoff && digit > cutlim)) | |
1361 | overflow = 1; | |
1362 | value = value * base + digit; | |
1363 | ++string; | |
1364 | } | |
252b5132 | 1365 | |
88eaccc2 AM |
1366 | if (overflow) |
1367 | value = ~ (bfd_vma) 0; | |
252b5132 | 1368 | |
88eaccc2 AM |
1369 | if (end != NULL) |
1370 | *end = string; | |
252b5132 RH |
1371 | |
1372 | return value; | |
1373 | } | |
1374 | ||
80fccad2 BW |
1375 | /* |
1376 | FUNCTION | |
1377 | bfd_copy_private_header_data | |
1378 | ||
1379 | SYNOPSIS | |
1380 | bfd_boolean bfd_copy_private_header_data (bfd *ibfd, bfd *obfd); | |
1381 | ||
1382 | DESCRIPTION | |
1383 | Copy private BFD header information from the BFD @var{ibfd} to the | |
1384 | the BFD @var{obfd}. This copies information that may require | |
1385 | sections to exist, but does not require symbol tables. Return | |
1386 | <<true>> on success, <<false>> on error. | |
1387 | Possible error returns are: | |
1388 | ||
1389 | o <<bfd_error_no_memory>> - | |
1390 | Not enough memory exists to create private data for @var{obfd}. | |
1391 | ||
1392 | .#define bfd_copy_private_header_data(ibfd, obfd) \ | |
1393 | . BFD_SEND (obfd, _bfd_copy_private_header_data, \ | |
1394 | . (ibfd, obfd)) | |
1395 | ||
1396 | */ | |
1397 | ||
252b5132 RH |
1398 | /* |
1399 | FUNCTION | |
1400 | bfd_copy_private_bfd_data | |
1401 | ||
1402 | SYNOPSIS | |
ed781d5d | 1403 | bfd_boolean bfd_copy_private_bfd_data (bfd *ibfd, bfd *obfd); |
252b5132 RH |
1404 | |
1405 | DESCRIPTION | |
aebad5fe | 1406 | Copy private BFD information from the BFD @var{ibfd} to the |
b34976b6 | 1407 | the BFD @var{obfd}. Return <<TRUE>> on success, <<FALSE>> on error. |
252b5132 RH |
1408 | Possible error returns are: |
1409 | ||
1410 | o <<bfd_error_no_memory>> - | |
1411 | Not enough memory exists to create private data for @var{obfd}. | |
1412 | ||
1413 | .#define bfd_copy_private_bfd_data(ibfd, obfd) \ | |
1414 | . BFD_SEND (obfd, _bfd_copy_private_bfd_data, \ | |
1415 | . (ibfd, obfd)) | |
1416 | ||
1417 | */ | |
1418 | ||
1419 | /* | |
1420 | FUNCTION | |
1421 | bfd_merge_private_bfd_data | |
1422 | ||
1423 | SYNOPSIS | |
ed781d5d | 1424 | bfd_boolean bfd_merge_private_bfd_data (bfd *ibfd, bfd *obfd); |
252b5132 RH |
1425 | |
1426 | DESCRIPTION | |
aebad5fe | 1427 | Merge private BFD information from the BFD @var{ibfd} to the |
b34976b6 AM |
1428 | the output file BFD @var{obfd} when linking. Return <<TRUE>> |
1429 | on success, <<FALSE>> on error. Possible error returns are: | |
252b5132 RH |
1430 | |
1431 | o <<bfd_error_no_memory>> - | |
1432 | Not enough memory exists to create private data for @var{obfd}. | |
1433 | ||
1434 | .#define bfd_merge_private_bfd_data(ibfd, obfd) \ | |
1435 | . BFD_SEND (obfd, _bfd_merge_private_bfd_data, \ | |
1436 | . (ibfd, obfd)) | |
1437 | ||
1438 | */ | |
1439 | ||
1440 | /* | |
1441 | FUNCTION | |
1442 | bfd_set_private_flags | |
1443 | ||
1444 | SYNOPSIS | |
ed781d5d | 1445 | bfd_boolean bfd_set_private_flags (bfd *abfd, flagword flags); |
252b5132 RH |
1446 | |
1447 | DESCRIPTION | |
1448 | Set private BFD flag information in the BFD @var{abfd}. | |
b34976b6 | 1449 | Return <<TRUE>> on success, <<FALSE>> on error. Possible error |
252b5132 RH |
1450 | returns are: |
1451 | ||
1452 | o <<bfd_error_no_memory>> - | |
1453 | Not enough memory exists to create private data for @var{obfd}. | |
1454 | ||
1455 | .#define bfd_set_private_flags(abfd, flags) \ | |
ed781d5d | 1456 | . BFD_SEND (abfd, _bfd_set_private_flags, (abfd, flags)) |
252b5132 RH |
1457 | |
1458 | */ | |
1459 | ||
1460 | /* | |
1461 | FUNCTION | |
ed781d5d | 1462 | Other functions |
252b5132 RH |
1463 | |
1464 | DESCRIPTION | |
ed781d5d | 1465 | The following functions exist but have not yet been documented. |
252b5132 | 1466 | |
a6b96beb AM |
1467 | .#define bfd_sizeof_headers(abfd, info) \ |
1468 | . BFD_SEND (abfd, _bfd_sizeof_headers, (abfd, info)) | |
252b5132 RH |
1469 | . |
1470 | .#define bfd_find_nearest_line(abfd, sec, syms, off, file, func, line) \ | |
ed781d5d | 1471 | . BFD_SEND (abfd, _bfd_find_nearest_line, \ |
fb167eb2 | 1472 | . (abfd, syms, sec, off, file, func, line, NULL)) |
252b5132 | 1473 | . |
9b8d1a36 CC |
1474 | .#define bfd_find_nearest_line_discriminator(abfd, sec, syms, off, file, func, \ |
1475 | . line, disc) \ | |
fb167eb2 AM |
1476 | . BFD_SEND (abfd, _bfd_find_nearest_line, \ |
1477 | . (abfd, syms, sec, off, file, func, line, disc)) | |
9b8d1a36 | 1478 | . |
5420f73d L |
1479 | .#define bfd_find_line(abfd, syms, sym, file, line) \ |
1480 | . BFD_SEND (abfd, _bfd_find_line, \ | |
1481 | . (abfd, syms, sym, file, line)) | |
1482 | . | |
4ab527b0 FF |
1483 | .#define bfd_find_inliner_info(abfd, file, func, line) \ |
1484 | . BFD_SEND (abfd, _bfd_find_inliner_info, \ | |
1485 | . (abfd, file, func, line)) | |
1486 | . | |
252b5132 | 1487 | .#define bfd_debug_info_start(abfd) \ |
ed781d5d | 1488 | . BFD_SEND (abfd, _bfd_debug_info_start, (abfd)) |
252b5132 RH |
1489 | . |
1490 | .#define bfd_debug_info_end(abfd) \ | |
ed781d5d | 1491 | . BFD_SEND (abfd, _bfd_debug_info_end, (abfd)) |
252b5132 RH |
1492 | . |
1493 | .#define bfd_debug_info_accumulate(abfd, section) \ | |
ed781d5d | 1494 | . BFD_SEND (abfd, _bfd_debug_info_accumulate, (abfd, section)) |
252b5132 RH |
1495 | . |
1496 | .#define bfd_stat_arch_elt(abfd, stat) \ | |
ed781d5d | 1497 | . BFD_SEND (abfd, _bfd_stat_arch_elt,(abfd, stat)) |
252b5132 RH |
1498 | . |
1499 | .#define bfd_update_armap_timestamp(abfd) \ | |
ed781d5d | 1500 | . BFD_SEND (abfd, _bfd_update_armap_timestamp, (abfd)) |
252b5132 RH |
1501 | . |
1502 | .#define bfd_set_arch_mach(abfd, arch, mach)\ | |
ed781d5d | 1503 | . BFD_SEND ( abfd, _bfd_set_arch_mach, (abfd, arch, mach)) |
252b5132 RH |
1504 | . |
1505 | .#define bfd_relax_section(abfd, section, link_info, again) \ | |
1506 | . BFD_SEND (abfd, _bfd_relax_section, (abfd, section, link_info, again)) | |
1507 | . | |
1508 | .#define bfd_gc_sections(abfd, link_info) \ | |
1509 | . BFD_SEND (abfd, _bfd_gc_sections, (abfd, link_info)) | |
8550eb6e | 1510 | . |
b9c361e0 JL |
1511 | .#define bfd_lookup_section_flags(link_info, flag_info, section) \ |
1512 | . BFD_SEND (abfd, _bfd_lookup_section_flags, (link_info, flag_info, section)) | |
ae17ab41 | 1513 | . |
8550eb6e JJ |
1514 | .#define bfd_merge_sections(abfd, link_info) \ |
1515 | . BFD_SEND (abfd, _bfd_merge_sections, (abfd, link_info)) | |
252b5132 | 1516 | . |
72adc230 AM |
1517 | .#define bfd_is_group_section(abfd, sec) \ |
1518 | . BFD_SEND (abfd, _bfd_is_group_section, (abfd, sec)) | |
1519 | . | |
e61463e1 AM |
1520 | .#define bfd_discard_group(abfd, sec) \ |
1521 | . BFD_SEND (abfd, _bfd_discard_group, (abfd, sec)) | |
1522 | . | |
252b5132 RH |
1523 | .#define bfd_link_hash_table_create(abfd) \ |
1524 | . BFD_SEND (abfd, _bfd_link_hash_table_create, (abfd)) | |
1525 | . | |
1526 | .#define bfd_link_add_symbols(abfd, info) \ | |
1527 | . BFD_SEND (abfd, _bfd_link_add_symbols, (abfd, info)) | |
1528 | . | |
1449d79b | 1529 | .#define bfd_link_just_syms(abfd, sec, info) \ |
2d653fc7 AM |
1530 | . BFD_SEND (abfd, _bfd_link_just_syms, (sec, info)) |
1531 | . | |
252b5132 RH |
1532 | .#define bfd_final_link(abfd, info) \ |
1533 | . BFD_SEND (abfd, _bfd_final_link, (abfd, info)) | |
1534 | . | |
1535 | .#define bfd_free_cached_info(abfd) \ | |
1536 | . BFD_SEND (abfd, _bfd_free_cached_info, (abfd)) | |
1537 | . | |
1538 | .#define bfd_get_dynamic_symtab_upper_bound(abfd) \ | |
1539 | . BFD_SEND (abfd, _bfd_get_dynamic_symtab_upper_bound, (abfd)) | |
1540 | . | |
1541 | .#define bfd_print_private_bfd_data(abfd, file)\ | |
1542 | . BFD_SEND (abfd, _bfd_print_private_bfd_data, (abfd, file)) | |
1543 | . | |
1544 | .#define bfd_canonicalize_dynamic_symtab(abfd, asymbols) \ | |
1545 | . BFD_SEND (abfd, _bfd_canonicalize_dynamic_symtab, (abfd, asymbols)) | |
1546 | . | |
c9727e01 AM |
1547 | .#define bfd_get_synthetic_symtab(abfd, count, syms, dyncount, dynsyms, ret) \ |
1548 | . BFD_SEND (abfd, _bfd_get_synthetic_symtab, (abfd, count, syms, \ | |
1549 | . dyncount, dynsyms, ret)) | |
4c45e5c9 | 1550 | . |
252b5132 RH |
1551 | .#define bfd_get_dynamic_reloc_upper_bound(abfd) \ |
1552 | . BFD_SEND (abfd, _bfd_get_dynamic_reloc_upper_bound, (abfd)) | |
1553 | . | |
1554 | .#define bfd_canonicalize_dynamic_reloc(abfd, arels, asyms) \ | |
1555 | . BFD_SEND (abfd, _bfd_canonicalize_dynamic_reloc, (abfd, arels, asyms)) | |
1556 | . | |
1557 | .extern bfd_byte *bfd_get_relocated_section_contents | |
c58b9523 AM |
1558 | . (bfd *, struct bfd_link_info *, struct bfd_link_order *, bfd_byte *, |
1559 | . bfd_boolean, asymbol **); | |
252b5132 RH |
1560 | . |
1561 | ||
1562 | */ | |
1563 | ||
1564 | bfd_byte * | |
c58b9523 AM |
1565 | bfd_get_relocated_section_contents (bfd *abfd, |
1566 | struct bfd_link_info *link_info, | |
1567 | struct bfd_link_order *link_order, | |
1568 | bfd_byte *data, | |
1569 | bfd_boolean relocatable, | |
1570 | asymbol **symbols) | |
252b5132 RH |
1571 | { |
1572 | bfd *abfd2; | |
c58b9523 AM |
1573 | bfd_byte *(*fn) (bfd *, struct bfd_link_info *, struct bfd_link_order *, |
1574 | bfd_byte *, bfd_boolean, asymbol **); | |
252b5132 RH |
1575 | |
1576 | if (link_order->type == bfd_indirect_link_order) | |
1577 | { | |
1578 | abfd2 = link_order->u.indirect.section->owner; | |
55ab10f0 | 1579 | if (abfd2 == NULL) |
252b5132 RH |
1580 | abfd2 = abfd; |
1581 | } | |
1582 | else | |
1583 | abfd2 = abfd; | |
55ab10f0 | 1584 | |
252b5132 RH |
1585 | fn = abfd2->xvec->_bfd_get_relocated_section_contents; |
1586 | ||
1049f94e | 1587 | return (*fn) (abfd, link_info, link_order, data, relocatable, symbols); |
252b5132 RH |
1588 | } |
1589 | ||
1590 | /* Record information about an ELF program header. */ | |
1591 | ||
b34976b6 | 1592 | bfd_boolean |
c58b9523 AM |
1593 | bfd_record_phdr (bfd *abfd, |
1594 | unsigned long type, | |
1595 | bfd_boolean flags_valid, | |
1596 | flagword flags, | |
1597 | bfd_boolean at_valid, | |
1598 | bfd_vma at, | |
1599 | bfd_boolean includes_filehdr, | |
1600 | bfd_boolean includes_phdrs, | |
1601 | unsigned int count, | |
1602 | asection **secs) | |
252b5132 RH |
1603 | { |
1604 | struct elf_segment_map *m, **pm; | |
dc810e39 | 1605 | bfd_size_type amt; |
252b5132 RH |
1606 | |
1607 | if (bfd_get_flavour (abfd) != bfd_target_elf_flavour) | |
b34976b6 | 1608 | return TRUE; |
252b5132 | 1609 | |
dc810e39 AM |
1610 | amt = sizeof (struct elf_segment_map); |
1611 | amt += ((bfd_size_type) count - 1) * sizeof (asection *); | |
a50b1753 | 1612 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
252b5132 | 1613 | if (m == NULL) |
b34976b6 | 1614 | return FALSE; |
252b5132 | 1615 | |
252b5132 RH |
1616 | m->p_type = type; |
1617 | m->p_flags = flags; | |
1618 | m->p_paddr = at; | |
c58b9523 AM |
1619 | m->p_flags_valid = flags_valid; |
1620 | m->p_paddr_valid = at_valid; | |
1621 | m->includes_filehdr = includes_filehdr; | |
1622 | m->includes_phdrs = includes_phdrs; | |
252b5132 RH |
1623 | m->count = count; |
1624 | if (count > 0) | |
1625 | memcpy (m->sections, secs, count * sizeof (asection *)); | |
1626 | ||
12bd6957 | 1627 | for (pm = &elf_seg_map (abfd); *pm != NULL; pm = &(*pm)->next) |
252b5132 RH |
1628 | ; |
1629 | *pm = m; | |
1630 | ||
b34976b6 | 1631 | return TRUE; |
252b5132 | 1632 | } |
ae4221d7 | 1633 | |
01a3c213 AM |
1634 | #ifdef BFD64 |
1635 | /* Return true iff this target is 32-bit. */ | |
1636 | ||
1637 | static bfd_boolean | |
1638 | is32bit (bfd *abfd) | |
ae4221d7 L |
1639 | { |
1640 | if (bfd_get_flavour (abfd) == bfd_target_elf_flavour) | |
01a3c213 AM |
1641 | { |
1642 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
1643 | return bed->s->elfclass == ELFCLASS32; | |
1644 | } | |
1645 | ||
6aa341c7 TG |
1646 | /* For non-ELF targets, use architecture information. */ |
1647 | return bfd_arch_bits_per_address (abfd) <= 32; | |
ae4221d7 | 1648 | } |
01a3c213 AM |
1649 | #endif |
1650 | ||
1651 | /* bfd_sprintf_vma and bfd_fprintf_vma display an address in the | |
1652 | target's address size. */ | |
ae4221d7 L |
1653 | |
1654 | void | |
01a3c213 | 1655 | bfd_sprintf_vma (bfd *abfd ATTRIBUTE_UNUSED, char *buf, bfd_vma value) |
ae4221d7 | 1656 | { |
970ccc77 | 1657 | #ifdef BFD64 |
01a3c213 AM |
1658 | if (is32bit (abfd)) |
1659 | { | |
1660 | sprintf (buf, "%08lx", (unsigned long) value & 0xffffffff); | |
1661 | return; | |
1662 | } | |
970ccc77 | 1663 | #endif |
01a3c213 AM |
1664 | sprintf_vma (buf, value); |
1665 | } | |
1666 | ||
1667 | void | |
1668 | bfd_fprintf_vma (bfd *abfd ATTRIBUTE_UNUSED, void *stream, bfd_vma value) | |
1669 | { | |
1670 | #ifdef BFD64 | |
1671 | if (is32bit (abfd)) | |
1672 | { | |
1673 | fprintf ((FILE *) stream, "%08lx", (unsigned long) value & 0xffffffff); | |
1674 | return; | |
1675 | } | |
1676 | #endif | |
1677 | fprintf_vma ((FILE *) stream, value); | |
ae4221d7 | 1678 | } |
8c98ec7d AO |
1679 | |
1680 | /* | |
1681 | FUNCTION | |
1682 | bfd_alt_mach_code | |
1683 | ||
1684 | SYNOPSIS | |
ed781d5d | 1685 | bfd_boolean bfd_alt_mach_code (bfd *abfd, int alternative); |
8c98ec7d AO |
1686 | |
1687 | DESCRIPTION | |
1688 | ||
1689 | When more than one machine code number is available for the | |
1690 | same machine type, this function can be used to switch between | |
47badb7b | 1691 | the preferred one (alternative == 0) and any others. Currently, |
8c98ec7d AO |
1692 | only ELF supports this feature, with up to two alternate |
1693 | machine codes. | |
1694 | */ | |
1695 | ||
b34976b6 | 1696 | bfd_boolean |
c58b9523 | 1697 | bfd_alt_mach_code (bfd *abfd, int alternative) |
8c98ec7d AO |
1698 | { |
1699 | if (bfd_get_flavour (abfd) == bfd_target_elf_flavour) | |
1700 | { | |
1701 | int code; | |
1702 | ||
47badb7b | 1703 | switch (alternative) |
8c98ec7d AO |
1704 | { |
1705 | case 0: | |
1706 | code = get_elf_backend_data (abfd)->elf_machine_code; | |
1707 | break; | |
1708 | ||
1709 | case 1: | |
1710 | code = get_elf_backend_data (abfd)->elf_machine_alt1; | |
1711 | if (code == 0) | |
b34976b6 | 1712 | return FALSE; |
8c98ec7d AO |
1713 | break; |
1714 | ||
1715 | case 2: | |
1716 | code = get_elf_backend_data (abfd)->elf_machine_alt2; | |
1717 | if (code == 0) | |
b34976b6 | 1718 | return FALSE; |
8c98ec7d AO |
1719 | break; |
1720 | ||
1721 | default: | |
b34976b6 | 1722 | return FALSE; |
8c98ec7d AO |
1723 | } |
1724 | ||
1725 | elf_elfheader (abfd)->e_machine = code; | |
1726 | ||
b34976b6 | 1727 | return TRUE; |
8c98ec7d AO |
1728 | } |
1729 | ||
b34976b6 | 1730 | return FALSE; |
8c98ec7d | 1731 | } |
e84d6fca | 1732 | |
24718e3b L |
1733 | /* |
1734 | FUNCTION | |
1735 | bfd_emul_get_maxpagesize | |
1736 | ||
1737 | SYNOPSIS | |
1738 | bfd_vma bfd_emul_get_maxpagesize (const char *); | |
1739 | ||
1740 | DESCRIPTION | |
1741 | Returns the maximum page size, in bytes, as determined by | |
1742 | emulation. | |
1743 | ||
1744 | RETURNS | |
095106a2 | 1745 | Returns the maximum page size in bytes for ELF, 0 otherwise. |
24718e3b L |
1746 | */ |
1747 | ||
1748 | bfd_vma | |
1749 | bfd_emul_get_maxpagesize (const char *emul) | |
1750 | { | |
1751 | const bfd_target *target; | |
1752 | ||
1753 | target = bfd_find_target (emul, NULL); | |
1754 | if (target != NULL | |
1755 | && target->flavour == bfd_target_elf_flavour) | |
1756 | return xvec_get_elf_backend_data (target)->maxpagesize; | |
1757 | ||
24718e3b L |
1758 | return 0; |
1759 | } | |
1760 | ||
1761 | static void | |
1762 | bfd_elf_set_pagesize (const bfd_target *target, bfd_vma size, | |
1763 | int offset, const bfd_target *orig_target) | |
1764 | { | |
1765 | if (target->flavour == bfd_target_elf_flavour) | |
1766 | { | |
1767 | const struct elf_backend_data *bed; | |
1768 | ||
1769 | bed = xvec_get_elf_backend_data (target); | |
1770 | *((bfd_vma *) ((char *) bed + offset)) = size; | |
1771 | } | |
1772 | ||
1773 | if (target->alternative_target | |
1774 | && target->alternative_target != orig_target) | |
1775 | bfd_elf_set_pagesize (target->alternative_target, size, offset, | |
1776 | orig_target); | |
1777 | } | |
1778 | ||
1779 | /* | |
1780 | FUNCTION | |
1781 | bfd_emul_set_maxpagesize | |
1782 | ||
1783 | SYNOPSIS | |
1784 | void bfd_emul_set_maxpagesize (const char *, bfd_vma); | |
1785 | ||
1786 | DESCRIPTION | |
1787 | For ELF, set the maximum page size for the emulation. It is | |
1788 | a no-op for other formats. | |
1789 | ||
1790 | */ | |
1791 | ||
1792 | void | |
1793 | bfd_emul_set_maxpagesize (const char *emul, bfd_vma size) | |
1794 | { | |
1795 | const bfd_target *target; | |
1796 | ||
1797 | target = bfd_find_target (emul, NULL); | |
1798 | if (target) | |
1799 | bfd_elf_set_pagesize (target, size, | |
1800 | offsetof (struct elf_backend_data, | |
1801 | maxpagesize), target); | |
1802 | } | |
1803 | ||
1804 | /* | |
1805 | FUNCTION | |
1806 | bfd_emul_get_commonpagesize | |
1807 | ||
1808 | SYNOPSIS | |
1809 | bfd_vma bfd_emul_get_commonpagesize (const char *); | |
1810 | ||
1811 | DESCRIPTION | |
1812 | Returns the common page size, in bytes, as determined by | |
1813 | emulation. | |
1814 | ||
1815 | RETURNS | |
095106a2 | 1816 | Returns the common page size in bytes for ELF, 0 otherwise. |
24718e3b L |
1817 | */ |
1818 | ||
1819 | bfd_vma | |
1820 | bfd_emul_get_commonpagesize (const char *emul) | |
1821 | { | |
1822 | const bfd_target *target; | |
1823 | ||
1824 | target = bfd_find_target (emul, NULL); | |
1825 | if (target != NULL | |
1826 | && target->flavour == bfd_target_elf_flavour) | |
1827 | return xvec_get_elf_backend_data (target)->commonpagesize; | |
1828 | ||
24718e3b L |
1829 | return 0; |
1830 | } | |
1831 | ||
1832 | /* | |
1833 | FUNCTION | |
1834 | bfd_emul_set_commonpagesize | |
1835 | ||
1836 | SYNOPSIS | |
1837 | void bfd_emul_set_commonpagesize (const char *, bfd_vma); | |
1838 | ||
1839 | DESCRIPTION | |
1840 | For ELF, set the common page size for the emulation. It is | |
1841 | a no-op for other formats. | |
1842 | ||
1843 | */ | |
1844 | ||
1845 | void | |
1846 | bfd_emul_set_commonpagesize (const char *emul, bfd_vma size) | |
1847 | { | |
1848 | const bfd_target *target; | |
1849 | ||
1850 | target = bfd_find_target (emul, NULL); | |
1851 | if (target) | |
1852 | bfd_elf_set_pagesize (target, size, | |
1853 | offsetof (struct elf_backend_data, | |
1854 | commonpagesize), target); | |
1855 | } | |
3fad56a3 AM |
1856 | |
1857 | /* | |
1858 | FUNCTION | |
1859 | bfd_demangle | |
1860 | ||
1861 | SYNOPSIS | |
1862 | char *bfd_demangle (bfd *, const char *, int); | |
1863 | ||
1864 | DESCRIPTION | |
1865 | Wrapper around cplus_demangle. Strips leading underscores and | |
1866 | other such chars that would otherwise confuse the demangler. | |
1867 | If passed a g++ v3 ABI mangled name, returns a buffer allocated | |
1868 | with malloc holding the demangled name. Returns NULL otherwise | |
1869 | and on memory alloc failure. | |
1870 | */ | |
1871 | ||
1872 | char * | |
1873 | bfd_demangle (bfd *abfd, const char *name, int options) | |
1874 | { | |
1875 | char *res, *alloc; | |
1876 | const char *pre, *suf; | |
1877 | size_t pre_len; | |
c29aae59 | 1878 | bfd_boolean skip_lead; |
3fad56a3 | 1879 | |
c29aae59 AM |
1880 | skip_lead = (abfd != NULL |
1881 | && *name != '\0' | |
1882 | && bfd_get_symbol_leading_char (abfd) == *name); | |
1883 | if (skip_lead) | |
3fad56a3 AM |
1884 | ++name; |
1885 | ||
1886 | /* This is a hack for better error reporting on XCOFF, PowerPC64-ELF | |
1887 | or the MS PE format. These formats have a number of leading '.'s | |
1888 | on at least some symbols, so we remove all dots to avoid | |
1889 | confusing the demangler. */ | |
1890 | pre = name; | |
1891 | while (*name == '.' || *name == '$') | |
1892 | ++name; | |
1893 | pre_len = name - pre; | |
1894 | ||
1895 | /* Strip off @plt and suchlike too. */ | |
1896 | alloc = NULL; | |
1897 | suf = strchr (name, '@'); | |
1898 | if (suf != NULL) | |
1899 | { | |
a50b1753 | 1900 | alloc = (char *) bfd_malloc (suf - name + 1); |
3fad56a3 AM |
1901 | if (alloc == NULL) |
1902 | return NULL; | |
1903 | memcpy (alloc, name, suf - name); | |
1904 | alloc[suf - name] = '\0'; | |
1905 | name = alloc; | |
1906 | } | |
1907 | ||
1908 | res = cplus_demangle (name, options); | |
1909 | ||
1910 | if (alloc != NULL) | |
1911 | free (alloc); | |
1912 | ||
1913 | if (res == NULL) | |
c29aae59 AM |
1914 | { |
1915 | if (skip_lead) | |
1916 | { | |
1917 | size_t len = strlen (pre) + 1; | |
a50b1753 | 1918 | alloc = (char *) bfd_malloc (len); |
c29aae59 AM |
1919 | if (alloc == NULL) |
1920 | return NULL; | |
1921 | memcpy (alloc, pre, len); | |
1922 | return alloc; | |
1923 | } | |
1924 | return NULL; | |
1925 | } | |
3fad56a3 AM |
1926 | |
1927 | /* Put back any prefix or suffix. */ | |
1928 | if (pre_len != 0 || suf != NULL) | |
1929 | { | |
1930 | size_t len; | |
1931 | size_t suf_len; | |
1932 | char *final; | |
1933 | ||
1934 | len = strlen (res); | |
1935 | if (suf == NULL) | |
1936 | suf = res + len; | |
1937 | suf_len = strlen (suf) + 1; | |
a50b1753 | 1938 | final = (char *) bfd_malloc (pre_len + len + suf_len); |
32e8a950 NC |
1939 | if (final != NULL) |
1940 | { | |
1941 | memcpy (final, pre, pre_len); | |
1942 | memcpy (final + pre_len, res, len); | |
1943 | memcpy (final + pre_len + len, suf, suf_len); | |
1944 | } | |
3fad56a3 AM |
1945 | free (res); |
1946 | res = final; | |
1947 | } | |
1948 | ||
1949 | return res; | |
1950 | } | |
151411f8 L |
1951 | |
1952 | /* | |
1953 | FUNCTION | |
1954 | bfd_update_compression_header | |
1955 | ||
1956 | SYNOPSIS | |
1957 | void bfd_update_compression_header | |
1958 | (bfd *abfd, bfd_byte *contents, asection *sec); | |
1959 | ||
1960 | DESCRIPTION | |
1961 | Set the compression header at CONTENTS of SEC in ABFD and update | |
1962 | elf_section_flags for compression. | |
1963 | */ | |
1964 | ||
1965 | void | |
1966 | bfd_update_compression_header (bfd *abfd, bfd_byte *contents, | |
1967 | asection *sec) | |
1968 | { | |
1969 | if ((abfd->flags & BFD_COMPRESS) != 0) | |
1970 | { | |
1971 | if (bfd_get_flavour (abfd) == bfd_target_elf_flavour) | |
1972 | { | |
1973 | if ((abfd->flags & BFD_COMPRESS_GABI) != 0) | |
1974 | { | |
1975 | const struct elf_backend_data *bed | |
1976 | = get_elf_backend_data (abfd); | |
1977 | ||
1978 | /* Set the SHF_COMPRESSED bit. */ | |
1979 | elf_section_flags (sec) |= SHF_COMPRESSED; | |
1980 | ||
1981 | if (bed->s->elfclass == ELFCLASS32) | |
1982 | { | |
1983 | Elf32_External_Chdr *echdr | |
1984 | = (Elf32_External_Chdr *) contents; | |
1985 | bfd_put_32 (abfd, ELFCOMPRESS_ZLIB, &echdr->ch_type); | |
1986 | bfd_put_32 (abfd, sec->size, &echdr->ch_size); | |
1987 | bfd_put_32 (abfd, 1 << sec->alignment_power, | |
1988 | &echdr->ch_addralign); | |
1989 | } | |
1990 | else | |
1991 | { | |
1992 | Elf64_External_Chdr *echdr | |
1993 | = (Elf64_External_Chdr *) contents; | |
1994 | bfd_put_64 (abfd, ELFCOMPRESS_ZLIB, &echdr->ch_type); | |
1995 | bfd_put_64 (abfd, sec->size, &echdr->ch_size); | |
1996 | bfd_put_64 (abfd, 1 << sec->alignment_power, | |
1997 | &echdr->ch_addralign); | |
1998 | } | |
1999 | } | |
2000 | else | |
2001 | /* Clear the SHF_COMPRESSED bit. */ | |
2002 | elf_section_flags (sec) &= ~SHF_COMPRESSED; | |
2003 | } | |
2004 | } | |
2005 | else | |
2006 | abort (); | |
2007 | } | |
2008 | ||
2009 | /* | |
2010 | FUNCTION | |
2011 | bfd_check_compression_header | |
2012 | ||
2013 | SYNOPSIS | |
2014 | bfd_boolean bfd_check_compression_header | |
2015 | (bfd *abfd, bfd_byte *contents, asection *sec, | |
2016 | bfd_size_type uncompressed_size); | |
2017 | ||
2018 | DESCRIPTION | |
2019 | Check the compression header at CONTENTS of SEC in ABFD with | |
2020 | the uncompressed size UNCOMPRESSED_SIZE. | |
2021 | ||
2022 | RETURNS | |
2023 | Return TRUE if the compression header is valid. | |
2024 | */ | |
2025 | ||
2026 | bfd_boolean | |
2027 | bfd_check_compression_header (bfd *abfd, bfd_byte *contents, | |
2028 | asection *sec, | |
2029 | bfd_size_type uncompressed_size) | |
2030 | { | |
2031 | if (bfd_get_flavour (abfd) == bfd_target_elf_flavour | |
2032 | && (elf_section_flags (sec) & SHF_COMPRESSED) != 0) | |
2033 | { | |
2034 | Elf_Internal_Chdr chdr; | |
2035 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
2036 | if (bed->s->elfclass == ELFCLASS32) | |
2037 | { | |
2038 | Elf32_External_Chdr *echdr = (Elf32_External_Chdr *) contents; | |
2039 | chdr.ch_type = bfd_get_32 (abfd, &echdr->ch_type); | |
2040 | chdr.ch_size = bfd_get_32 (abfd, &echdr->ch_size); | |
2041 | chdr.ch_addralign = bfd_get_32 (abfd, &echdr->ch_addralign); | |
2042 | } | |
2043 | else | |
2044 | { | |
2045 | Elf64_External_Chdr *echdr = (Elf64_External_Chdr *) contents; | |
2046 | chdr.ch_type = bfd_get_64 (abfd, &echdr->ch_type); | |
2047 | chdr.ch_size = bfd_get_64 (abfd, &echdr->ch_size); | |
2048 | chdr.ch_addralign = bfd_get_64 (abfd, &echdr->ch_addralign); | |
2049 | } | |
2050 | return (chdr.ch_type == ELFCOMPRESS_ZLIB | |
2051 | && chdr.ch_size == uncompressed_size | |
2052 | && chdr.ch_addralign == 1U << sec->alignment_power); | |
2053 | } | |
2054 | ||
2055 | return FALSE; | |
2056 | } | |
2057 | ||
2058 | /* | |
2059 | FUNCTION | |
2060 | bfd_get_compression_header_size | |
2061 | ||
2062 | SYNOPSIS | |
2063 | int bfd_get_compression_header_size (bfd *abfd, asection *sec); | |
2064 | ||
2065 | DESCRIPTION | |
2066 | Return the size of the compression header of SEC in ABFD. | |
2067 | ||
2068 | RETURNS | |
2069 | Return the size of the compression header in bytes. | |
2070 | */ | |
2071 | ||
2072 | int | |
2073 | bfd_get_compression_header_size (bfd *abfd, asection *sec) | |
2074 | { | |
2075 | if (bfd_get_flavour (abfd) == bfd_target_elf_flavour) | |
2076 | { | |
2077 | if (sec == NULL) | |
2078 | { | |
2079 | if (!(abfd->flags & BFD_COMPRESS_GABI)) | |
2080 | return 0; | |
2081 | } | |
2082 | else if (!(elf_section_flags (sec) & SHF_COMPRESSED)) | |
2083 | return 0; | |
2084 | ||
2085 | if (get_elf_backend_data (abfd)->s->elfclass == ELFCLASS32) | |
2086 | return sizeof (Elf32_External_Chdr); | |
2087 | else | |
2088 | return sizeof (Elf64_External_Chdr); | |
2089 | } | |
2090 | ||
2091 | return 0; | |
2092 | } |