Commit | Line | Data |
---|---|---|
252b5132 | 1 | /* Generic BFD library interface and support routines. |
7898deda | 2 | Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
6e3d6dc1 | 3 | 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 |
252b5132 RH |
4 | Free Software Foundation, Inc. |
5 | Written by Cygnus Support. | |
6 | ||
3af9a47b | 7 | This file is part of BFD, the Binary File Descriptor library. |
252b5132 | 8 | |
3af9a47b NC |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
cd123cb7 | 11 | the Free Software Foundation; either version 3 of the License, or |
3af9a47b | 12 | (at your option) any later version. |
252b5132 | 13 | |
3af9a47b NC |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
252b5132 | 18 | |
3af9a47b NC |
19 | You should have received a copy of the GNU General Public License |
20 | along with this program; if not, write to the Free Software | |
cd123cb7 NC |
21 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
22 | MA 02110-1301, USA. */ | |
252b5132 RH |
23 | |
24 | /* | |
25 | SECTION | |
26 | <<typedef bfd>> | |
27 | ||
28 | A BFD has type <<bfd>>; objects of this type are the | |
29 | cornerstone of any application using BFD. Using BFD | |
30 | consists of making references though the BFD and to data in the BFD. | |
31 | ||
32 | Here is the structure that defines the type <<bfd>>. It | |
33 | contains the major data about the file and pointers | |
34 | to the rest of the data. | |
35 | ||
36 | CODE_FRAGMENT | |
37 | . | |
c2852e88 | 38 | .struct bfd |
252b5132 | 39 | .{ |
52b69c9e AO |
40 | . {* A unique identifier of the BFD *} |
41 | . unsigned int id; | |
42 | . | |
b5f79c76 NC |
43 | . {* The filename the application opened the BFD with. *} |
44 | . const char *filename; | |
252b5132 | 45 | . |
b5f79c76 NC |
46 | . {* A pointer to the target jump table. *} |
47 | . const struct bfd_target *xvec; | |
252b5132 | 48 | . |
40838a72 AC |
49 | . {* The IOSTREAM, and corresponding IO vector that provide access |
50 | . to the file backing the BFD. *} | |
c58b9523 | 51 | . void *iostream; |
40838a72 | 52 | . const struct bfd_iovec *iovec; |
b5f79c76 | 53 | . |
b5f79c76 NC |
54 | . {* The caching routines use these to maintain a |
55 | . least-recently-used list of BFDs. *} | |
2ce40c65 | 56 | . struct bfd *lru_prev, *lru_next; |
b5f79c76 NC |
57 | . |
58 | . {* When a file is closed by the caching routines, BFD retains | |
59 | . state information on the file here... *} | |
60 | . ufile_ptr where; | |
61 | . | |
b34976b6 | 62 | . {* File modified time, if mtime_set is TRUE. *} |
b5f79c76 NC |
63 | . long mtime; |
64 | . | |
65 | . {* Reserved for an unimplemented file locking extension. *} | |
66 | . int ifd; | |
67 | . | |
68 | . {* The format which belongs to the BFD. (object, core, etc.) *} | |
69 | . bfd_format format; | |
70 | . | |
71 | . {* The direction with which the BFD was opened. *} | |
72 | . enum bfd_direction | |
73 | . { | |
74 | . no_direction = 0, | |
75 | . read_direction = 1, | |
76 | . write_direction = 2, | |
77 | . both_direction = 3 | |
78 | . } | |
79 | . direction; | |
80 | . | |
81 | . {* Format_specific flags. *} | |
82 | . flagword flags; | |
83 | . | |
6ad2759d L |
84 | . {* Values that may appear in the flags field of a BFD. These also |
85 | . appear in the object_flags field of the bfd_target structure, where | |
86 | . they indicate the set of flags used by that backend (not all flags | |
87 | . are meaningful for all object file formats) (FIXME: at the moment, | |
88 | . the object_flags values have mostly just been copied from backend | |
89 | . to another, and are not necessarily correct). *} | |
90 | . | |
91 | .#define BFD_NO_FLAGS 0x00 | |
92 | . | |
93 | . {* BFD contains relocation entries. *} | |
94 | .#define HAS_RELOC 0x01 | |
95 | . | |
96 | . {* BFD is directly executable. *} | |
97 | .#define EXEC_P 0x02 | |
98 | . | |
99 | . {* BFD has line number information (basically used for F_LNNO in a | |
100 | . COFF header). *} | |
101 | .#define HAS_LINENO 0x04 | |
102 | . | |
103 | . {* BFD has debugging information. *} | |
104 | .#define HAS_DEBUG 0x08 | |
105 | . | |
106 | . {* BFD has symbols. *} | |
107 | .#define HAS_SYMS 0x10 | |
108 | . | |
109 | . {* BFD has local symbols (basically used for F_LSYMS in a COFF | |
110 | . header). *} | |
111 | .#define HAS_LOCALS 0x20 | |
112 | . | |
113 | . {* BFD is a dynamic object. *} | |
114 | .#define DYNAMIC 0x40 | |
115 | . | |
116 | . {* Text section is write protected (if D_PAGED is not set, this is | |
117 | . like an a.out NMAGIC file) (the linker sets this by default, but | |
118 | . clears it for -r or -N). *} | |
119 | .#define WP_TEXT 0x80 | |
120 | . | |
121 | . {* BFD is dynamically paged (this is like an a.out ZMAGIC file) (the | |
122 | . linker sets this by default, but clears it for -r or -n or -N). *} | |
123 | .#define D_PAGED 0x100 | |
124 | . | |
125 | . {* BFD is relaxable (this means that bfd_relax_section may be able to | |
126 | . do something) (sometimes bfd_relax_section can do something even if | |
127 | . this is not set). *} | |
128 | .#define BFD_IS_RELAXABLE 0x200 | |
129 | . | |
130 | . {* This may be set before writing out a BFD to request using a | |
131 | . traditional format. For example, this is used to request that when | |
132 | . writing out an a.out object the symbols not be hashed to eliminate | |
133 | . duplicates. *} | |
134 | .#define BFD_TRADITIONAL_FORMAT 0x400 | |
135 | . | |
136 | . {* This flag indicates that the BFD contents are actually cached | |
137 | . in memory. If this is set, iostream points to a bfd_in_memory | |
138 | . struct. *} | |
139 | .#define BFD_IN_MEMORY 0x800 | |
140 | . | |
141 | . {* The sections in this BFD specify a memory page. *} | |
142 | .#define HAS_LOAD_PAGE 0x1000 | |
143 | . | |
144 | . {* This BFD has been created by the linker and doesn't correspond | |
145 | . to any input file. *} | |
146 | .#define BFD_LINKER_CREATED 0x2000 | |
147 | . | |
b5f79c76 NC |
148 | . {* Currently my_archive is tested before adding origin to |
149 | . anything. I believe that this can become always an add of | |
150 | . origin, with origin set to 0 for non archive files. *} | |
151 | . ufile_ptr origin; | |
152 | . | |
a8da6403 NC |
153 | . {* The origin in the archive of the proxy entry. This will |
154 | . normally be the same as origin, except for thin archives, | |
155 | . when it will contain the current offset of the proxy in the | |
156 | . thin archive rather than the offset of the bfd in its actual | |
157 | . container. *} | |
158 | . ufile_ptr proxy_origin; | |
159 | . | |
b5f79c76 NC |
160 | . {* A hash table for section names. *} |
161 | . struct bfd_hash_table section_htab; | |
162 | . | |
163 | . {* Pointer to linked list of sections. *} | |
198beae2 | 164 | . struct bfd_section *sections; |
b5f79c76 | 165 | . |
5daa8fe7 L |
166 | . {* The last section on the section list. *} |
167 | . struct bfd_section *section_last; | |
b5f79c76 NC |
168 | . |
169 | . {* The number of sections. *} | |
170 | . unsigned int section_count; | |
171 | . | |
172 | . {* Stuff only useful for object files: | |
173 | . The start address. *} | |
174 | . bfd_vma start_address; | |
175 | . | |
176 | . {* Used for input and output. *} | |
177 | . unsigned int symcount; | |
178 | . | |
179 | . {* Symbol table for output BFD (with symcount entries). *} | |
fc0a2244 | 180 | . struct bfd_symbol **outsymbols; |
b5f79c76 | 181 | . |
1f70368c DJ |
182 | . {* Used for slurped dynamic symbol tables. *} |
183 | . unsigned int dynsymcount; | |
184 | . | |
b5f79c76 NC |
185 | . {* Pointer to structure which contains architecture information. *} |
186 | . const struct bfd_arch_info *arch_info; | |
187 | . | |
188 | . {* Stuff only useful for archives. *} | |
c58b9523 | 189 | . void *arelt_data; |
2ce40c65 | 190 | . struct bfd *my_archive; {* The containing archive BFD. *} |
cc481421 | 191 | . struct bfd *archive_next; {* The next BFD in the archive. *} |
2ce40c65 | 192 | . struct bfd *archive_head; {* The first BFD in the archive. *} |
a8da6403 NC |
193 | . struct bfd *nested_archives; {* List of nested archive in a flattened |
194 | . thin archive. *} | |
252b5132 | 195 | . |
b5f79c76 | 196 | . {* A chain of BFD structures involved in a link. *} |
2ce40c65 | 197 | . struct bfd *link_next; |
b5f79c76 NC |
198 | . |
199 | . {* A field used by _bfd_generic_link_add_archive_symbols. This will | |
200 | . be used only for archive elements. *} | |
201 | . int archive_pass; | |
202 | . | |
203 | . {* Used by the back end to hold private data. *} | |
204 | . union | |
205 | . { | |
252b5132 RH |
206 | . struct aout_data_struct *aout_data; |
207 | . struct artdata *aout_ar_data; | |
208 | . struct _oasys_data *oasys_obj_data; | |
209 | . struct _oasys_ar_data *oasys_ar_data; | |
210 | . struct coff_tdata *coff_obj_data; | |
211 | . struct pe_tdata *pe_obj_data; | |
212 | . struct xcoff_tdata *xcoff_obj_data; | |
213 | . struct ecoff_tdata *ecoff_obj_data; | |
214 | . struct ieee_data_struct *ieee_data; | |
215 | . struct ieee_ar_data_struct *ieee_ar_data; | |
216 | . struct srec_data_struct *srec_data; | |
217 | . struct ihex_data_struct *ihex_data; | |
218 | . struct tekhex_data_struct *tekhex_data; | |
219 | . struct elf_obj_tdata *elf_obj_data; | |
220 | . struct nlm_obj_tdata *nlm_obj_data; | |
221 | . struct bout_data_struct *bout_data; | |
3c3bdf30 | 222 | . struct mmo_data_struct *mmo_data; |
252b5132 RH |
223 | . struct sun_core_struct *sun_core_data; |
224 | . struct sco5_core_struct *sco5_core_data; | |
225 | . struct trad_core_struct *trad_core_data; | |
226 | . struct som_data_struct *som_data; | |
227 | . struct hpux_core_struct *hpux_core_data; | |
228 | . struct hppabsd_core_struct *hppabsd_core_data; | |
229 | . struct sgi_core_struct *sgi_core_data; | |
230 | . struct lynx_core_struct *lynx_core_data; | |
231 | . struct osf_core_struct *osf_core_data; | |
232 | . struct cisco_core_struct *cisco_core_data; | |
233 | . struct versados_data_struct *versados_data; | |
234 | . struct netbsd_core_struct *netbsd_core_data; | |
3af9a47b NC |
235 | . struct mach_o_data_struct *mach_o_data; |
236 | . struct mach_o_fat_data_struct *mach_o_fat_data; | |
237 | . struct bfd_pef_data_struct *pef_data; | |
238 | . struct bfd_pef_xlib_data_struct *pef_xlib_data; | |
239 | . struct bfd_sym_data_struct *sym_data; | |
c58b9523 | 240 | . void *any; |
b5f79c76 NC |
241 | . } |
242 | . tdata; | |
aebad5fe | 243 | . |
b5f79c76 | 244 | . {* Used by the application to hold private data. *} |
c58b9523 | 245 | . void *usrdata; |
252b5132 RH |
246 | . |
247 | . {* Where all the allocated stuff under this BFD goes. This is a | |
c58b9523 AM |
248 | . struct objalloc *, but we use void * to avoid requiring the inclusion |
249 | . of objalloc.h. *} | |
250 | . void *memory; | |
6ad2759d L |
251 | . |
252 | . {* Is the file descriptor being cached? That is, can it be closed as | |
253 | . needed, and re-opened when accessed later? *} | |
254 | . unsigned int cacheable : 1; | |
255 | . | |
256 | . {* Marks whether there was a default target specified when the | |
257 | . BFD was opened. This is used to select which matching algorithm | |
258 | . to use to choose the back end. *} | |
259 | . unsigned int target_defaulted : 1; | |
260 | . | |
261 | . {* ... and here: (``once'' means at least once). *} | |
262 | . unsigned int opened_once : 1; | |
263 | . | |
264 | . {* Set if we have a locally maintained mtime value, rather than | |
265 | . getting it from the file each time. *} | |
266 | . unsigned int mtime_set : 1; | |
267 | . | |
268 | . {* Flag set if symbols from this BFD should not be exported. *} | |
269 | . unsigned int no_export : 1; | |
270 | . | |
271 | . {* Remember when output has begun, to stop strange things | |
272 | . from happening. *} | |
273 | . unsigned int output_has_begun : 1; | |
274 | . | |
275 | . {* Have archive map. *} | |
276 | . unsigned int has_armap : 1; | |
a8da6403 NC |
277 | . |
278 | . {* Set if this is a thin archive. *} | |
279 | . unsigned int is_thin_archive : 1; | |
252b5132 RH |
280 | .}; |
281 | . | |
282 | */ | |
283 | ||
252b5132 | 284 | #include "sysdep.h" |
252b5132 | 285 | #include <stdarg.h> |
3db64b00 AM |
286 | #include "bfd.h" |
287 | #include "bfdver.h" | |
252b5132 | 288 | #include "libiberty.h" |
3fad56a3 | 289 | #include "demangle.h" |
3882b010 | 290 | #include "safe-ctype.h" |
252b5132 RH |
291 | #include "bfdlink.h" |
292 | #include "libbfd.h" | |
293 | #include "coff/internal.h" | |
294 | #include "coff/sym.h" | |
295 | #include "libcoff.h" | |
296 | #include "libecoff.h" | |
297 | #undef obj_symbols | |
298 | #include "elf-bfd.h" | |
3168356f AM |
299 | |
300 | #ifndef EXIT_FAILURE | |
301 | #define EXIT_FAILURE 1 | |
302 | #endif | |
303 | ||
252b5132 RH |
304 | \f |
305 | /* provide storage for subsystem, stack and heap data which may have been | |
306 | passed in on the command line. Ld puts this data into a bfd_link_info | |
307 | struct which ultimately gets passed in to the bfd. When it arrives, copy | |
308 | it to the following struct so that the data will be available in coffcode.h | |
309 | where it is needed. The typedef's used are defined in bfd.h */ | |
252b5132 RH |
310 | \f |
311 | /* | |
312 | SECTION | |
313 | Error reporting | |
314 | ||
315 | Most BFD functions return nonzero on success (check their | |
316 | individual documentation for precise semantics). On an error, | |
317 | they call <<bfd_set_error>> to set an error condition that callers | |
318 | can check by calling <<bfd_get_error>>. | |
319 | If that returns <<bfd_error_system_call>>, then check | |
320 | <<errno>>. | |
321 | ||
322 | The easiest way to report a BFD error to the user is to | |
323 | use <<bfd_perror>>. | |
324 | ||
325 | SUBSECTION | |
326 | Type <<bfd_error_type>> | |
327 | ||
328 | The values returned by <<bfd_get_error>> are defined by the | |
329 | enumerated type <<bfd_error_type>>. | |
330 | ||
331 | CODE_FRAGMENT | |
332 | . | |
333 | .typedef enum bfd_error | |
334 | .{ | |
335 | . bfd_error_no_error = 0, | |
336 | . bfd_error_system_call, | |
337 | . bfd_error_invalid_target, | |
338 | . bfd_error_wrong_format, | |
3619ad04 | 339 | . bfd_error_wrong_object_format, |
252b5132 RH |
340 | . bfd_error_invalid_operation, |
341 | . bfd_error_no_memory, | |
342 | . bfd_error_no_symbols, | |
343 | . bfd_error_no_armap, | |
344 | . bfd_error_no_more_archived_files, | |
345 | . bfd_error_malformed_archive, | |
346 | . bfd_error_file_not_recognized, | |
347 | . bfd_error_file_ambiguously_recognized, | |
348 | . bfd_error_no_contents, | |
349 | . bfd_error_nonrepresentable_section, | |
350 | . bfd_error_no_debug_section, | |
351 | . bfd_error_bad_value, | |
352 | . bfd_error_file_truncated, | |
353 | . bfd_error_file_too_big, | |
ffda70fc | 354 | . bfd_error_on_input, |
252b5132 | 355 | . bfd_error_invalid_error_code |
b5f79c76 NC |
356 | .} |
357 | .bfd_error_type; | |
252b5132 RH |
358 | . |
359 | */ | |
360 | ||
361 | static bfd_error_type bfd_error = bfd_error_no_error; | |
ffda70fc AM |
362 | static bfd *input_bfd = NULL; |
363 | static bfd_error_type input_error = bfd_error_no_error; | |
252b5132 | 364 | |
55ab10f0 NC |
365 | const char *const bfd_errmsgs[] = |
366 | { | |
367 | N_("No error"), | |
368 | N_("System call error"), | |
369 | N_("Invalid bfd target"), | |
370 | N_("File in wrong format"), | |
3619ad04 | 371 | N_("Archive object file in wrong format"), |
55ab10f0 NC |
372 | N_("Invalid operation"), |
373 | N_("Memory exhausted"), | |
374 | N_("No symbols"), | |
375 | N_("Archive has no index; run ranlib to add one"), | |
376 | N_("No more archived files"), | |
377 | N_("Malformed archive"), | |
378 | N_("File format not recognized"), | |
379 | N_("File format is ambiguous"), | |
380 | N_("Section has no contents"), | |
381 | N_("Nonrepresentable section on output"), | |
382 | N_("Symbol needs debug section which does not exist"), | |
383 | N_("Bad value"), | |
384 | N_("File truncated"), | |
385 | N_("File too big"), | |
ffda70fc | 386 | N_("Error reading %s: %s"), |
55ab10f0 NC |
387 | N_("#<Invalid error code>") |
388 | }; | |
252b5132 RH |
389 | |
390 | /* | |
391 | FUNCTION | |
392 | bfd_get_error | |
393 | ||
394 | SYNOPSIS | |
395 | bfd_error_type bfd_get_error (void); | |
396 | ||
397 | DESCRIPTION | |
398 | Return the current BFD error condition. | |
399 | */ | |
400 | ||
401 | bfd_error_type | |
c58b9523 | 402 | bfd_get_error (void) |
252b5132 RH |
403 | { |
404 | return bfd_error; | |
405 | } | |
406 | ||
407 | /* | |
408 | FUNCTION | |
409 | bfd_set_error | |
410 | ||
411 | SYNOPSIS | |
ffda70fc | 412 | void bfd_set_error (bfd_error_type error_tag, ...); |
252b5132 RH |
413 | |
414 | DESCRIPTION | |
415 | Set the BFD error condition to be @var{error_tag}. | |
ffda70fc AM |
416 | If @var{error_tag} is bfd_error_on_input, then this function |
417 | takes two more parameters, the input bfd where the error | |
418 | occurred, and the bfd_error_type error. | |
252b5132 RH |
419 | */ |
420 | ||
421 | void | |
ffda70fc | 422 | bfd_set_error (bfd_error_type error_tag, ...) |
252b5132 RH |
423 | { |
424 | bfd_error = error_tag; | |
ffda70fc AM |
425 | if (error_tag == bfd_error_on_input) |
426 | { | |
427 | /* This is an error that occurred during bfd_close when | |
428 | writing an archive, but on one of the input files. */ | |
429 | va_list ap; | |
430 | ||
431 | va_start (ap, error_tag); | |
432 | input_bfd = va_arg (ap, bfd *); | |
433 | input_error = va_arg (ap, int); | |
434 | if (input_error >= bfd_error_on_input) | |
435 | abort (); | |
436 | va_end (ap); | |
437 | } | |
252b5132 RH |
438 | } |
439 | ||
440 | /* | |
441 | FUNCTION | |
442 | bfd_errmsg | |
443 | ||
444 | SYNOPSIS | |
55ab10f0 | 445 | const char *bfd_errmsg (bfd_error_type error_tag); |
252b5132 RH |
446 | |
447 | DESCRIPTION | |
448 | Return a string describing the error @var{error_tag}, or | |
449 | the system error if @var{error_tag} is <<bfd_error_system_call>>. | |
450 | */ | |
451 | ||
55ab10f0 | 452 | const char * |
c58b9523 | 453 | bfd_errmsg (bfd_error_type error_tag) |
252b5132 RH |
454 | { |
455 | #ifndef errno | |
456 | extern int errno; | |
457 | #endif | |
ffda70fc AM |
458 | if (error_tag == bfd_error_on_input) |
459 | { | |
460 | char *buf; | |
461 | const char *msg = bfd_errmsg (input_error); | |
462 | ||
463 | if (asprintf (&buf, _(bfd_errmsgs [error_tag]), input_bfd->filename, msg) | |
464 | != -1) | |
465 | return buf; | |
466 | ||
467 | /* Ick, what to do on out of memory? */ | |
468 | return msg; | |
469 | } | |
470 | ||
252b5132 RH |
471 | if (error_tag == bfd_error_system_call) |
472 | return xstrerror (errno); | |
473 | ||
c58b9523 AM |
474 | if (error_tag > bfd_error_invalid_error_code) |
475 | error_tag = bfd_error_invalid_error_code; /* sanity check */ | |
252b5132 | 476 | |
c58b9523 | 477 | return _(bfd_errmsgs [error_tag]); |
252b5132 RH |
478 | } |
479 | ||
480 | /* | |
481 | FUNCTION | |
482 | bfd_perror | |
483 | ||
484 | SYNOPSIS | |
55ab10f0 | 485 | void bfd_perror (const char *message); |
252b5132 RH |
486 | |
487 | DESCRIPTION | |
488 | Print to the standard error stream a string describing the | |
489 | last BFD error that occurred, or the last system error if | |
490 | the last BFD error was a system call failure. If @var{message} | |
491 | is non-NULL and non-empty, the error string printed is preceded | |
492 | by @var{message}, a colon, and a space. It is followed by a newline. | |
493 | */ | |
494 | ||
495 | void | |
c58b9523 | 496 | bfd_perror (const char *message) |
252b5132 | 497 | { |
ffda70fc AM |
498 | if (message == NULL || *message == '\0') |
499 | fprintf (stderr, "%s\n", bfd_errmsg (bfd_get_error ())); | |
55ab10f0 | 500 | else |
ffda70fc | 501 | fprintf (stderr, "%s: %s\n", message, bfd_errmsg (bfd_get_error ())); |
252b5132 RH |
502 | } |
503 | ||
504 | /* | |
505 | SUBSECTION | |
506 | BFD error handler | |
507 | ||
508 | Some BFD functions want to print messages describing the | |
509 | problem. They call a BFD error handler function. This | |
5c4491d3 | 510 | function may be overridden by the program. |
252b5132 RH |
511 | |
512 | The BFD error handler acts like printf. | |
513 | ||
514 | CODE_FRAGMENT | |
515 | . | |
c58b9523 | 516 | .typedef void (*bfd_error_handler_type) (const char *, ...); |
252b5132 RH |
517 | . |
518 | */ | |
519 | ||
520 | /* The program name used when printing BFD error messages. */ | |
521 | ||
522 | static const char *_bfd_error_program_name; | |
523 | ||
d003868e AM |
524 | /* This is the default routine to handle BFD error messages. |
525 | Like fprintf (stderr, ...), but also handles some extra format specifiers. | |
526 | ||
527 | %A section name from section. For group components, print group name too. | |
528 | %B file name from bfd. For archive components, prints archive too. | |
d07676f8 NC |
529 | |
530 | Note - because these two extra format specifiers require special handling | |
531 | they are scanned for and processed in this function, before calling | |
532 | vfprintf. This means that the *arguments* for these format specifiers | |
533 | must be the first ones in the variable argument list, regardless of where | |
534 | the specifiers appear in the format string. Thus for example calling | |
535 | this function with a format string of: | |
536 | ||
537 | "blah %s blah %A blah %d blah %B" | |
538 | ||
539 | would involve passing the arguments as: | |
540 | ||
541 | "blah %s blah %A blah %d blah %B", | |
542 | asection_for_the_%A, | |
543 | bfd_for_the_%B, | |
544 | string_for_the_%s, | |
545 | integer_for_the_%d); | |
d003868e | 546 | */ |
252b5132 | 547 | |
185d09ad | 548 | void |
d003868e | 549 | _bfd_default_error_handler (const char *fmt, ...) |
252b5132 | 550 | { |
d003868e AM |
551 | va_list ap; |
552 | char *bufp; | |
553 | const char *new_fmt, *p; | |
554 | size_t avail = 1000; | |
555 | char buf[1000]; | |
c58b9523 | 556 | |
0bc43230 AM |
557 | /* PR 4992: Don't interrupt output being sent to stdout. */ |
558 | fflush (stdout); | |
559 | ||
252b5132 RH |
560 | if (_bfd_error_program_name != NULL) |
561 | fprintf (stderr, "%s: ", _bfd_error_program_name); | |
562 | else | |
563 | fprintf (stderr, "BFD: "); | |
564 | ||
d003868e AM |
565 | va_start (ap, fmt); |
566 | new_fmt = fmt; | |
567 | bufp = buf; | |
568 | ||
569 | /* Reserve enough space for the existing format string. */ | |
570 | avail -= strlen (fmt) + 1; | |
571 | if (avail > 1000) | |
3168356f | 572 | _exit (EXIT_FAILURE); |
d003868e AM |
573 | |
574 | p = fmt; | |
3e540f25 | 575 | while (1) |
d003868e AM |
576 | { |
577 | char *q; | |
578 | size_t len, extra, trim; | |
579 | ||
580 | p = strchr (p, '%'); | |
581 | if (p == NULL || p[1] == '\0') | |
582 | { | |
583 | if (new_fmt == buf) | |
584 | { | |
585 | len = strlen (fmt); | |
586 | memcpy (bufp, fmt, len + 1); | |
587 | } | |
588 | break; | |
589 | } | |
590 | ||
591 | if (p[1] == 'A' || p[1] == 'B') | |
592 | { | |
593 | len = p - fmt; | |
594 | memcpy (bufp, fmt, len); | |
595 | bufp += len; | |
596 | fmt = p + 2; | |
597 | new_fmt = buf; | |
598 | ||
599 | /* If we run out of space, tough, you lose your ridiculously | |
600 | long file or section name. It's not safe to try to alloc | |
601 | memory here; We might be printing an out of memory message. */ | |
602 | if (avail == 0) | |
603 | { | |
604 | *bufp++ = '*'; | |
605 | *bufp++ = '*'; | |
606 | *bufp = '\0'; | |
607 | } | |
608 | else | |
609 | { | |
610 | if (p[1] == 'B') | |
611 | { | |
612 | bfd *abfd = va_arg (ap, bfd *); | |
d07676f8 NC |
613 | |
614 | if (abfd == NULL) | |
615 | /* Invoking %B with a null bfd pointer is an internal error. */ | |
616 | abort (); | |
617 | else if (abfd->my_archive) | |
d003868e AM |
618 | snprintf (bufp, avail, "%s(%s)", |
619 | abfd->my_archive->filename, abfd->filename); | |
620 | else | |
621 | snprintf (bufp, avail, "%s", abfd->filename); | |
622 | } | |
623 | else | |
624 | { | |
625 | asection *sec = va_arg (ap, asection *); | |
d07676f8 | 626 | bfd *abfd; |
d003868e AM |
627 | const char *group = NULL; |
628 | struct coff_comdat_info *ci; | |
629 | ||
d07676f8 NC |
630 | if (sec == NULL) |
631 | /* Invoking %A with a null section pointer is an internal error. */ | |
632 | abort (); | |
633 | abfd = sec->owner; | |
d003868e AM |
634 | if (abfd != NULL |
635 | && bfd_get_flavour (abfd) == bfd_target_elf_flavour | |
636 | && elf_next_in_group (sec) != NULL | |
637 | && (sec->flags & SEC_GROUP) == 0) | |
638 | group = elf_group_name (sec); | |
639 | else if (abfd != NULL | |
640 | && bfd_get_flavour (abfd) == bfd_target_coff_flavour | |
641 | && (ci = bfd_coff_get_comdat_section (sec->owner, | |
642 | sec)) != NULL) | |
643 | group = ci->name; | |
644 | if (group != NULL) | |
645 | snprintf (bufp, avail, "%s[%s]", sec->name, group); | |
646 | else | |
647 | snprintf (bufp, avail, "%s", sec->name); | |
648 | } | |
649 | len = strlen (bufp); | |
650 | avail = avail - len + 2; | |
651 | ||
652 | /* We need to replace any '%' we printed by "%%". | |
653 | First count how many. */ | |
654 | q = bufp; | |
655 | bufp += len; | |
656 | extra = 0; | |
657 | while ((q = strchr (q, '%')) != NULL) | |
658 | { | |
659 | ++q; | |
660 | ++extra; | |
661 | } | |
662 | ||
663 | /* If there isn't room, trim off the end of the string. */ | |
664 | q = bufp; | |
665 | bufp += extra; | |
666 | if (extra > avail) | |
667 | { | |
668 | trim = extra - avail; | |
669 | bufp -= trim; | |
670 | do | |
671 | { | |
672 | if (*--q == '%') | |
673 | --extra; | |
674 | } | |
675 | while (--trim != 0); | |
676 | *q = '\0'; | |
45fc9e4a | 677 | avail = extra; |
d003868e | 678 | } |
45fc9e4a | 679 | avail -= extra; |
d003868e AM |
680 | |
681 | /* Now double all '%' chars, shuffling the string as we go. */ | |
682 | while (extra != 0) | |
683 | { | |
684 | while ((q[extra] = *q) != '%') | |
685 | --q; | |
686 | q[--extra] = '%'; | |
687 | --q; | |
688 | } | |
689 | } | |
690 | } | |
691 | p = p + 2; | |
692 | } | |
693 | ||
694 | vfprintf (stderr, new_fmt, ap); | |
695 | va_end (ap); | |
252b5132 | 696 | |
d003868e | 697 | putc ('\n', stderr); |
252b5132 RH |
698 | } |
699 | ||
252b5132 RH |
700 | /* This is a function pointer to the routine which should handle BFD |
701 | error messages. It is called when a BFD routine encounters an | |
702 | error for which it wants to print a message. Going through a | |
703 | function pointer permits a program linked against BFD to intercept | |
704 | the messages and deal with them itself. */ | |
705 | ||
706 | bfd_error_handler_type _bfd_error_handler = _bfd_default_error_handler; | |
707 | ||
708 | /* | |
709 | FUNCTION | |
710 | bfd_set_error_handler | |
711 | ||
712 | SYNOPSIS | |
713 | bfd_error_handler_type bfd_set_error_handler (bfd_error_handler_type); | |
714 | ||
715 | DESCRIPTION | |
716 | Set the BFD error handler function. Returns the previous | |
717 | function. | |
718 | */ | |
719 | ||
720 | bfd_error_handler_type | |
c58b9523 | 721 | bfd_set_error_handler (bfd_error_handler_type pnew) |
252b5132 RH |
722 | { |
723 | bfd_error_handler_type pold; | |
724 | ||
725 | pold = _bfd_error_handler; | |
726 | _bfd_error_handler = pnew; | |
727 | return pold; | |
728 | } | |
729 | ||
730 | /* | |
731 | FUNCTION | |
732 | bfd_set_error_program_name | |
733 | ||
734 | SYNOPSIS | |
735 | void bfd_set_error_program_name (const char *); | |
736 | ||
737 | DESCRIPTION | |
738 | Set the program name to use when printing a BFD error. This | |
739 | is printed before the error message followed by a colon and | |
740 | space. The string must not be changed after it is passed to | |
741 | this function. | |
742 | */ | |
743 | ||
744 | void | |
c58b9523 | 745 | bfd_set_error_program_name (const char *name) |
252b5132 RH |
746 | { |
747 | _bfd_error_program_name = name; | |
748 | } | |
749 | ||
252b5132 RH |
750 | /* |
751 | FUNCTION | |
752 | bfd_get_error_handler | |
753 | ||
754 | SYNOPSIS | |
755 | bfd_error_handler_type bfd_get_error_handler (void); | |
756 | ||
757 | DESCRIPTION | |
758 | Return the BFD error handler function. | |
759 | */ | |
760 | ||
761 | bfd_error_handler_type | |
c58b9523 | 762 | bfd_get_error_handler (void) |
252b5132 RH |
763 | { |
764 | return _bfd_error_handler; | |
765 | } | |
766 | \f | |
767 | /* | |
768 | SECTION | |
1b74d094 BW |
769 | Miscellaneous |
770 | ||
771 | SUBSECTION | |
772 | Miscellaneous functions | |
252b5132 RH |
773 | */ |
774 | ||
775 | /* | |
776 | FUNCTION | |
777 | bfd_get_reloc_upper_bound | |
778 | ||
779 | SYNOPSIS | |
ed781d5d | 780 | long bfd_get_reloc_upper_bound (bfd *abfd, asection *sect); |
252b5132 RH |
781 | |
782 | DESCRIPTION | |
783 | Return the number of bytes required to store the | |
784 | relocation information associated with section @var{sect} | |
785 | attached to bfd @var{abfd}. If an error occurs, return -1. | |
786 | ||
787 | */ | |
788 | ||
252b5132 | 789 | long |
c58b9523 | 790 | bfd_get_reloc_upper_bound (bfd *abfd, sec_ptr asect) |
252b5132 | 791 | { |
55ab10f0 NC |
792 | if (abfd->format != bfd_object) |
793 | { | |
794 | bfd_set_error (bfd_error_invalid_operation); | |
795 | return -1; | |
796 | } | |
252b5132 RH |
797 | |
798 | return BFD_SEND (abfd, _get_reloc_upper_bound, (abfd, asect)); | |
799 | } | |
800 | ||
801 | /* | |
802 | FUNCTION | |
803 | bfd_canonicalize_reloc | |
804 | ||
805 | SYNOPSIS | |
806 | long bfd_canonicalize_reloc | |
c58b9523 | 807 | (bfd *abfd, asection *sec, arelent **loc, asymbol **syms); |
252b5132 RH |
808 | |
809 | DESCRIPTION | |
810 | Call the back end associated with the open BFD | |
811 | @var{abfd} and translate the external form of the relocation | |
812 | information attached to @var{sec} into the internal canonical | |
813 | form. Place the table into memory at @var{loc}, which has | |
814 | been preallocated, usually by a call to | |
815 | <<bfd_get_reloc_upper_bound>>. Returns the number of relocs, or | |
816 | -1 on error. | |
817 | ||
818 | The @var{syms} table is also needed for horrible internal magic | |
819 | reasons. | |
820 | ||
252b5132 RH |
821 | */ |
822 | long | |
c58b9523 AM |
823 | bfd_canonicalize_reloc (bfd *abfd, |
824 | sec_ptr asect, | |
825 | arelent **location, | |
826 | asymbol **symbols) | |
252b5132 | 827 | { |
55ab10f0 NC |
828 | if (abfd->format != bfd_object) |
829 | { | |
830 | bfd_set_error (bfd_error_invalid_operation); | |
831 | return -1; | |
832 | } | |
833 | ||
252b5132 RH |
834 | return BFD_SEND (abfd, _bfd_canonicalize_reloc, |
835 | (abfd, asect, location, symbols)); | |
836 | } | |
837 | ||
838 | /* | |
839 | FUNCTION | |
840 | bfd_set_reloc | |
841 | ||
842 | SYNOPSIS | |
843 | void bfd_set_reloc | |
b5f79c76 | 844 | (bfd *abfd, asection *sec, arelent **rel, unsigned int count); |
252b5132 RH |
845 | |
846 | DESCRIPTION | |
847 | Set the relocation pointer and count within | |
848 | section @var{sec} to the values @var{rel} and @var{count}. | |
849 | The argument @var{abfd} is ignored. | |
850 | ||
851 | */ | |
aebad5fe | 852 | |
252b5132 | 853 | void |
c58b9523 AM |
854 | bfd_set_reloc (bfd *ignore_abfd ATTRIBUTE_UNUSED, |
855 | sec_ptr asect, | |
856 | arelent **location, | |
857 | unsigned int count) | |
252b5132 RH |
858 | { |
859 | asect->orelocation = location; | |
860 | asect->reloc_count = count; | |
861 | } | |
862 | ||
863 | /* | |
864 | FUNCTION | |
865 | bfd_set_file_flags | |
866 | ||
867 | SYNOPSIS | |
ed781d5d | 868 | bfd_boolean bfd_set_file_flags (bfd *abfd, flagword flags); |
252b5132 RH |
869 | |
870 | DESCRIPTION | |
871 | Set the flag word in the BFD @var{abfd} to the value @var{flags}. | |
872 | ||
873 | Possible errors are: | |
874 | o <<bfd_error_wrong_format>> - The target bfd was not of object format. | |
875 | o <<bfd_error_invalid_operation>> - The target bfd was open for reading. | |
876 | o <<bfd_error_invalid_operation>> - | |
877 | The flag word contained a bit which was not applicable to the | |
878 | type of file. E.g., an attempt was made to set the <<D_PAGED>> bit | |
879 | on a BFD format which does not support demand paging. | |
880 | ||
881 | */ | |
882 | ||
b34976b6 | 883 | bfd_boolean |
c58b9523 | 884 | bfd_set_file_flags (bfd *abfd, flagword flags) |
252b5132 | 885 | { |
55ab10f0 NC |
886 | if (abfd->format != bfd_object) |
887 | { | |
888 | bfd_set_error (bfd_error_wrong_format); | |
b34976b6 | 889 | return FALSE; |
55ab10f0 | 890 | } |
252b5132 | 891 | |
55ab10f0 NC |
892 | if (bfd_read_p (abfd)) |
893 | { | |
894 | bfd_set_error (bfd_error_invalid_operation); | |
b34976b6 | 895 | return FALSE; |
55ab10f0 | 896 | } |
252b5132 RH |
897 | |
898 | bfd_get_file_flags (abfd) = flags; | |
55ab10f0 NC |
899 | if ((flags & bfd_applicable_file_flags (abfd)) != flags) |
900 | { | |
901 | bfd_set_error (bfd_error_invalid_operation); | |
b34976b6 | 902 | return FALSE; |
55ab10f0 | 903 | } |
252b5132 | 904 | |
b34976b6 | 905 | return TRUE; |
252b5132 RH |
906 | } |
907 | ||
908 | void | |
c58b9523 | 909 | bfd_assert (const char *file, int line) |
252b5132 | 910 | { |
aec2f561 AM |
911 | (*_bfd_error_handler) (_("BFD %s assertion fail %s:%d"), |
912 | BFD_VERSION_STRING, file, line); | |
252b5132 RH |
913 | } |
914 | ||
c0bed66d ILT |
915 | /* A more or less friendly abort message. In libbfd.h abort is |
916 | defined to call this function. */ | |
917 | ||
c0bed66d | 918 | void |
c58b9523 | 919 | _bfd_abort (const char *file, int line, const char *fn) |
c0bed66d ILT |
920 | { |
921 | if (fn != NULL) | |
922 | (*_bfd_error_handler) | |
aec2f561 AM |
923 | (_("BFD %s internal error, aborting at %s line %d in %s\n"), |
924 | BFD_VERSION_STRING, file, line, fn); | |
c0bed66d ILT |
925 | else |
926 | (*_bfd_error_handler) | |
391154e9 | 927 | (_("BFD %s internal error, aborting at %s line %d\n"), |
aec2f561 | 928 | BFD_VERSION_STRING, file, line); |
c0bed66d | 929 | (*_bfd_error_handler) (_("Please report this bug.\n")); |
3168356f | 930 | _exit (EXIT_FAILURE); |
c0bed66d | 931 | } |
252b5132 | 932 | |
125c4a69 NC |
933 | /* |
934 | FUNCTION | |
935 | bfd_get_arch_size | |
936 | ||
937 | SYNOPSIS | |
938 | int bfd_get_arch_size (bfd *abfd); | |
939 | ||
940 | DESCRIPTION | |
941 | Returns the architecture address size, in bits, as determined | |
942 | by the object file's format. For ELF, this information is | |
943 | included in the header. | |
944 | ||
945 | RETURNS | |
946 | Returns the arch size in bits if known, <<-1>> otherwise. | |
947 | */ | |
948 | ||
949 | int | |
c58b9523 | 950 | bfd_get_arch_size (bfd *abfd) |
125c4a69 NC |
951 | { |
952 | if (abfd->xvec->flavour == bfd_target_elf_flavour) | |
c58b9523 | 953 | return get_elf_backend_data (abfd)->s->arch_size; |
125c4a69 | 954 | |
125c4a69 NC |
955 | return -1; |
956 | } | |
957 | ||
958 | /* | |
959 | FUNCTION | |
960 | bfd_get_sign_extend_vma | |
961 | ||
962 | SYNOPSIS | |
963 | int bfd_get_sign_extend_vma (bfd *abfd); | |
964 | ||
965 | DESCRIPTION | |
966 | Indicates if the target architecture "naturally" sign extends | |
967 | an address. Some architectures implicitly sign extend address | |
968 | values when they are converted to types larger than the size | |
969 | of an address. For instance, bfd_get_start_address() will | |
970 | return an address sign extended to fill a bfd_vma when this is | |
971 | the case. | |
972 | ||
973 | RETURNS | |
974 | Returns <<1>> if the target architecture is known to sign | |
975 | extend addresses, <<0>> if the target architecture is known to | |
976 | not sign extend addresses, and <<-1>> otherwise. | |
977 | */ | |
978 | ||
979 | int | |
c58b9523 | 980 | bfd_get_sign_extend_vma (bfd *abfd) |
125c4a69 | 981 | { |
f47e5071 NC |
982 | char *name; |
983 | ||
125c4a69 | 984 | if (bfd_get_flavour (abfd) == bfd_target_elf_flavour) |
c58b9523 | 985 | return get_elf_backend_data (abfd)->sign_extend_vma; |
125c4a69 | 986 | |
f47e5071 NC |
987 | name = bfd_get_target (abfd); |
988 | ||
7148cc28 | 989 | /* Return a proper value for DJGPP & PE COFF. |
f47e5071 NC |
990 | This function is required for DWARF2 support, but there is |
991 | no place to store this information in the COFF back end. | |
992 | Should enough other COFF targets add support for DWARF2, | |
993 | a place will have to be found. Until then, this hack will do. */ | |
0112cd26 | 994 | if (CONST_STRNEQ (name, "coff-go32") |
8a7140c3 | 995 | || strcmp (name, "pe-i386") == 0 |
f0927246 | 996 | || strcmp (name, "pei-i386") == 0 |
6e3d6dc1 NC |
997 | || strcmp (name, "pe-x86-64") == 0 |
998 | || strcmp (name, "pei-x86-64") == 0 | |
7148cc28 NC |
999 | || strcmp (name, "pe-arm-wince-little") == 0 |
1000 | || strcmp (name, "pei-arm-wince-little") == 0) | |
f47e5071 NC |
1001 | return 1; |
1002 | ||
a022216b | 1003 | bfd_set_error (bfd_error_wrong_format); |
125c4a69 NC |
1004 | return -1; |
1005 | } | |
1006 | ||
252b5132 RH |
1007 | /* |
1008 | FUNCTION | |
1009 | bfd_set_start_address | |
1010 | ||
1011 | SYNOPSIS | |
ed781d5d | 1012 | bfd_boolean bfd_set_start_address (bfd *abfd, bfd_vma vma); |
252b5132 RH |
1013 | |
1014 | DESCRIPTION | |
1015 | Make @var{vma} the entry point of output BFD @var{abfd}. | |
1016 | ||
1017 | RETURNS | |
b34976b6 | 1018 | Returns <<TRUE>> on success, <<FALSE>> otherwise. |
252b5132 RH |
1019 | */ |
1020 | ||
b34976b6 | 1021 | bfd_boolean |
c58b9523 | 1022 | bfd_set_start_address (bfd *abfd, bfd_vma vma) |
252b5132 RH |
1023 | { |
1024 | abfd->start_address = vma; | |
b34976b6 | 1025 | return TRUE; |
252b5132 RH |
1026 | } |
1027 | ||
252b5132 RH |
1028 | /* |
1029 | FUNCTION | |
1030 | bfd_get_gp_size | |
1031 | ||
1032 | SYNOPSIS | |
ed781d5d | 1033 | unsigned int bfd_get_gp_size (bfd *abfd); |
252b5132 RH |
1034 | |
1035 | DESCRIPTION | |
1036 | Return the maximum size of objects to be optimized using the GP | |
1037 | register under MIPS ECOFF. This is typically set by the <<-G>> | |
1038 | argument to the compiler, assembler or linker. | |
1039 | */ | |
1040 | ||
c0846b23 | 1041 | unsigned int |
c58b9523 | 1042 | bfd_get_gp_size (bfd *abfd) |
252b5132 RH |
1043 | { |
1044 | if (abfd->format == bfd_object) | |
1045 | { | |
1046 | if (abfd->xvec->flavour == bfd_target_ecoff_flavour) | |
1047 | return ecoff_data (abfd)->gp_size; | |
1048 | else if (abfd->xvec->flavour == bfd_target_elf_flavour) | |
1049 | return elf_gp_size (abfd); | |
1050 | } | |
1051 | return 0; | |
1052 | } | |
1053 | ||
1054 | /* | |
1055 | FUNCTION | |
1056 | bfd_set_gp_size | |
1057 | ||
1058 | SYNOPSIS | |
ed781d5d | 1059 | void bfd_set_gp_size (bfd *abfd, unsigned int i); |
252b5132 RH |
1060 | |
1061 | DESCRIPTION | |
1062 | Set the maximum size of objects to be optimized using the GP | |
1063 | register under ECOFF or MIPS ELF. This is typically set by | |
1064 | the <<-G>> argument to the compiler, assembler or linker. | |
1065 | */ | |
1066 | ||
1067 | void | |
c58b9523 | 1068 | bfd_set_gp_size (bfd *abfd, unsigned int i) |
252b5132 | 1069 | { |
55ab10f0 | 1070 | /* Don't try to set GP size on an archive or core file! */ |
252b5132 RH |
1071 | if (abfd->format != bfd_object) |
1072 | return; | |
55ab10f0 | 1073 | |
252b5132 RH |
1074 | if (abfd->xvec->flavour == bfd_target_ecoff_flavour) |
1075 | ecoff_data (abfd)->gp_size = i; | |
1076 | else if (abfd->xvec->flavour == bfd_target_elf_flavour) | |
1077 | elf_gp_size (abfd) = i; | |
1078 | } | |
1079 | ||
1080 | /* Get the GP value. This is an internal function used by some of the | |
1081 | relocation special_function routines on targets which support a GP | |
1082 | register. */ | |
1083 | ||
1084 | bfd_vma | |
c58b9523 | 1085 | _bfd_get_gp_value (bfd *abfd) |
252b5132 | 1086 | { |
9bcf4de0 TS |
1087 | if (! abfd) |
1088 | return 0; | |
55ab10f0 NC |
1089 | if (abfd->format != bfd_object) |
1090 | return 0; | |
1091 | ||
1092 | if (abfd->xvec->flavour == bfd_target_ecoff_flavour) | |
1093 | return ecoff_data (abfd)->gp; | |
1094 | else if (abfd->xvec->flavour == bfd_target_elf_flavour) | |
1095 | return elf_gp (abfd); | |
1096 | ||
252b5132 RH |
1097 | return 0; |
1098 | } | |
1099 | ||
1100 | /* Set the GP value. */ | |
1101 | ||
1102 | void | |
c58b9523 | 1103 | _bfd_set_gp_value (bfd *abfd, bfd_vma v) |
252b5132 | 1104 | { |
9bcf4de0 | 1105 | if (! abfd) |
c2c96631 | 1106 | abort (); |
252b5132 RH |
1107 | if (abfd->format != bfd_object) |
1108 | return; | |
55ab10f0 | 1109 | |
252b5132 RH |
1110 | if (abfd->xvec->flavour == bfd_target_ecoff_flavour) |
1111 | ecoff_data (abfd)->gp = v; | |
1112 | else if (abfd->xvec->flavour == bfd_target_elf_flavour) | |
1113 | elf_gp (abfd) = v; | |
1114 | } | |
1115 | ||
1116 | /* | |
1117 | FUNCTION | |
1118 | bfd_scan_vma | |
1119 | ||
1120 | SYNOPSIS | |
ed781d5d | 1121 | bfd_vma bfd_scan_vma (const char *string, const char **end, int base); |
252b5132 RH |
1122 | |
1123 | DESCRIPTION | |
1124 | Convert, like <<strtoul>>, a numerical expression | |
1125 | @var{string} into a <<bfd_vma>> integer, and return that integer. | |
1126 | (Though without as many bells and whistles as <<strtoul>>.) | |
1127 | The expression is assumed to be unsigned (i.e., positive). | |
1128 | If given a @var{base}, it is used as the base for conversion. | |
1129 | A base of 0 causes the function to interpret the string | |
1130 | in hex if a leading "0x" or "0X" is found, otherwise | |
1131 | in octal if a leading zero is found, otherwise in decimal. | |
1132 | ||
88eaccc2 AM |
1133 | If the value would overflow, the maximum <<bfd_vma>> value is |
1134 | returned. | |
252b5132 RH |
1135 | */ |
1136 | ||
1137 | bfd_vma | |
c58b9523 | 1138 | bfd_scan_vma (const char *string, const char **end, int base) |
252b5132 RH |
1139 | { |
1140 | bfd_vma value; | |
88eaccc2 AM |
1141 | bfd_vma cutoff; |
1142 | unsigned int cutlim; | |
1143 | int overflow; | |
252b5132 RH |
1144 | |
1145 | /* Let the host do it if possible. */ | |
eb6e10cb | 1146 | if (sizeof (bfd_vma) <= sizeof (unsigned long)) |
c58b9523 | 1147 | return strtoul (string, (char **) end, base); |
252b5132 | 1148 | |
49c97a80 ILT |
1149 | #ifdef HAVE_STRTOULL |
1150 | if (sizeof (bfd_vma) <= sizeof (unsigned long long)) | |
1151 | return strtoull (string, (char **) end, base); | |
1152 | #endif | |
1153 | ||
252b5132 RH |
1154 | if (base == 0) |
1155 | { | |
1156 | if (string[0] == '0') | |
1157 | { | |
1158 | if ((string[1] == 'x') || (string[1] == 'X')) | |
1159 | base = 16; | |
252b5132 RH |
1160 | else |
1161 | base = 8; | |
1162 | } | |
252b5132 | 1163 | } |
55ab10f0 | 1164 | |
88eaccc2 AM |
1165 | if ((base < 2) || (base > 36)) |
1166 | base = 10; | |
1167 | ||
1168 | if (base == 16 | |
1169 | && string[0] == '0' | |
1170 | && (string[1] == 'x' || string[1] == 'X') | |
1171 | && ISXDIGIT (string[2])) | |
1172 | { | |
1173 | string += 2; | |
1174 | } | |
aebad5fe | 1175 | |
88eaccc2 AM |
1176 | cutoff = (~ (bfd_vma) 0) / (bfd_vma) base; |
1177 | cutlim = (~ (bfd_vma) 0) % (bfd_vma) base; | |
1178 | value = 0; | |
1179 | overflow = 0; | |
1180 | while (1) | |
1181 | { | |
1182 | unsigned int digit; | |
1183 | ||
1184 | digit = *string; | |
1185 | if (ISDIGIT (digit)) | |
1186 | digit = digit - '0'; | |
1187 | else if (ISALPHA (digit)) | |
1188 | digit = TOUPPER (digit) - 'A' + 10; | |
1189 | else | |
1190 | break; | |
1191 | if (digit >= (unsigned int) base) | |
1192 | break; | |
1193 | if (value > cutoff || (value == cutoff && digit > cutlim)) | |
1194 | overflow = 1; | |
1195 | value = value * base + digit; | |
1196 | ++string; | |
1197 | } | |
252b5132 | 1198 | |
88eaccc2 AM |
1199 | if (overflow) |
1200 | value = ~ (bfd_vma) 0; | |
252b5132 | 1201 | |
88eaccc2 AM |
1202 | if (end != NULL) |
1203 | *end = string; | |
252b5132 RH |
1204 | |
1205 | return value; | |
1206 | } | |
1207 | ||
80fccad2 BW |
1208 | /* |
1209 | FUNCTION | |
1210 | bfd_copy_private_header_data | |
1211 | ||
1212 | SYNOPSIS | |
1213 | bfd_boolean bfd_copy_private_header_data (bfd *ibfd, bfd *obfd); | |
1214 | ||
1215 | DESCRIPTION | |
1216 | Copy private BFD header information from the BFD @var{ibfd} to the | |
1217 | the BFD @var{obfd}. This copies information that may require | |
1218 | sections to exist, but does not require symbol tables. Return | |
1219 | <<true>> on success, <<false>> on error. | |
1220 | Possible error returns are: | |
1221 | ||
1222 | o <<bfd_error_no_memory>> - | |
1223 | Not enough memory exists to create private data for @var{obfd}. | |
1224 | ||
1225 | .#define bfd_copy_private_header_data(ibfd, obfd) \ | |
1226 | . BFD_SEND (obfd, _bfd_copy_private_header_data, \ | |
1227 | . (ibfd, obfd)) | |
1228 | ||
1229 | */ | |
1230 | ||
252b5132 RH |
1231 | /* |
1232 | FUNCTION | |
1233 | bfd_copy_private_bfd_data | |
1234 | ||
1235 | SYNOPSIS | |
ed781d5d | 1236 | bfd_boolean bfd_copy_private_bfd_data (bfd *ibfd, bfd *obfd); |
252b5132 RH |
1237 | |
1238 | DESCRIPTION | |
aebad5fe | 1239 | Copy private BFD information from the BFD @var{ibfd} to the |
b34976b6 | 1240 | the BFD @var{obfd}. Return <<TRUE>> on success, <<FALSE>> on error. |
252b5132 RH |
1241 | Possible error returns are: |
1242 | ||
1243 | o <<bfd_error_no_memory>> - | |
1244 | Not enough memory exists to create private data for @var{obfd}. | |
1245 | ||
1246 | .#define bfd_copy_private_bfd_data(ibfd, obfd) \ | |
1247 | . BFD_SEND (obfd, _bfd_copy_private_bfd_data, \ | |
1248 | . (ibfd, obfd)) | |
1249 | ||
1250 | */ | |
1251 | ||
1252 | /* | |
1253 | FUNCTION | |
1254 | bfd_merge_private_bfd_data | |
1255 | ||
1256 | SYNOPSIS | |
ed781d5d | 1257 | bfd_boolean bfd_merge_private_bfd_data (bfd *ibfd, bfd *obfd); |
252b5132 RH |
1258 | |
1259 | DESCRIPTION | |
aebad5fe | 1260 | Merge private BFD information from the BFD @var{ibfd} to the |
b34976b6 AM |
1261 | the output file BFD @var{obfd} when linking. Return <<TRUE>> |
1262 | on success, <<FALSE>> on error. Possible error returns are: | |
252b5132 RH |
1263 | |
1264 | o <<bfd_error_no_memory>> - | |
1265 | Not enough memory exists to create private data for @var{obfd}. | |
1266 | ||
1267 | .#define bfd_merge_private_bfd_data(ibfd, obfd) \ | |
1268 | . BFD_SEND (obfd, _bfd_merge_private_bfd_data, \ | |
1269 | . (ibfd, obfd)) | |
1270 | ||
1271 | */ | |
1272 | ||
1273 | /* | |
1274 | FUNCTION | |
1275 | bfd_set_private_flags | |
1276 | ||
1277 | SYNOPSIS | |
ed781d5d | 1278 | bfd_boolean bfd_set_private_flags (bfd *abfd, flagword flags); |
252b5132 RH |
1279 | |
1280 | DESCRIPTION | |
1281 | Set private BFD flag information in the BFD @var{abfd}. | |
b34976b6 | 1282 | Return <<TRUE>> on success, <<FALSE>> on error. Possible error |
252b5132 RH |
1283 | returns are: |
1284 | ||
1285 | o <<bfd_error_no_memory>> - | |
1286 | Not enough memory exists to create private data for @var{obfd}. | |
1287 | ||
1288 | .#define bfd_set_private_flags(abfd, flags) \ | |
ed781d5d | 1289 | . BFD_SEND (abfd, _bfd_set_private_flags, (abfd, flags)) |
252b5132 RH |
1290 | |
1291 | */ | |
1292 | ||
1293 | /* | |
1294 | FUNCTION | |
ed781d5d | 1295 | Other functions |
252b5132 RH |
1296 | |
1297 | DESCRIPTION | |
ed781d5d | 1298 | The following functions exist but have not yet been documented. |
252b5132 | 1299 | |
a6b96beb AM |
1300 | .#define bfd_sizeof_headers(abfd, info) \ |
1301 | . BFD_SEND (abfd, _bfd_sizeof_headers, (abfd, info)) | |
252b5132 RH |
1302 | . |
1303 | .#define bfd_find_nearest_line(abfd, sec, syms, off, file, func, line) \ | |
ed781d5d NC |
1304 | . BFD_SEND (abfd, _bfd_find_nearest_line, \ |
1305 | . (abfd, sec, syms, off, file, func, line)) | |
252b5132 | 1306 | . |
5420f73d L |
1307 | .#define bfd_find_line(abfd, syms, sym, file, line) \ |
1308 | . BFD_SEND (abfd, _bfd_find_line, \ | |
1309 | . (abfd, syms, sym, file, line)) | |
1310 | . | |
4ab527b0 FF |
1311 | .#define bfd_find_inliner_info(abfd, file, func, line) \ |
1312 | . BFD_SEND (abfd, _bfd_find_inliner_info, \ | |
1313 | . (abfd, file, func, line)) | |
1314 | . | |
252b5132 | 1315 | .#define bfd_debug_info_start(abfd) \ |
ed781d5d | 1316 | . BFD_SEND (abfd, _bfd_debug_info_start, (abfd)) |
252b5132 RH |
1317 | . |
1318 | .#define bfd_debug_info_end(abfd) \ | |
ed781d5d | 1319 | . BFD_SEND (abfd, _bfd_debug_info_end, (abfd)) |
252b5132 RH |
1320 | . |
1321 | .#define bfd_debug_info_accumulate(abfd, section) \ | |
ed781d5d | 1322 | . BFD_SEND (abfd, _bfd_debug_info_accumulate, (abfd, section)) |
252b5132 RH |
1323 | . |
1324 | .#define bfd_stat_arch_elt(abfd, stat) \ | |
ed781d5d | 1325 | . BFD_SEND (abfd, _bfd_stat_arch_elt,(abfd, stat)) |
252b5132 RH |
1326 | . |
1327 | .#define bfd_update_armap_timestamp(abfd) \ | |
ed781d5d | 1328 | . BFD_SEND (abfd, _bfd_update_armap_timestamp, (abfd)) |
252b5132 RH |
1329 | . |
1330 | .#define bfd_set_arch_mach(abfd, arch, mach)\ | |
ed781d5d | 1331 | . BFD_SEND ( abfd, _bfd_set_arch_mach, (abfd, arch, mach)) |
252b5132 RH |
1332 | . |
1333 | .#define bfd_relax_section(abfd, section, link_info, again) \ | |
1334 | . BFD_SEND (abfd, _bfd_relax_section, (abfd, section, link_info, again)) | |
1335 | . | |
1336 | .#define bfd_gc_sections(abfd, link_info) \ | |
1337 | . BFD_SEND (abfd, _bfd_gc_sections, (abfd, link_info)) | |
8550eb6e JJ |
1338 | . |
1339 | .#define bfd_merge_sections(abfd, link_info) \ | |
1340 | . BFD_SEND (abfd, _bfd_merge_sections, (abfd, link_info)) | |
252b5132 | 1341 | . |
72adc230 AM |
1342 | .#define bfd_is_group_section(abfd, sec) \ |
1343 | . BFD_SEND (abfd, _bfd_is_group_section, (abfd, sec)) | |
1344 | . | |
e61463e1 AM |
1345 | .#define bfd_discard_group(abfd, sec) \ |
1346 | . BFD_SEND (abfd, _bfd_discard_group, (abfd, sec)) | |
1347 | . | |
252b5132 RH |
1348 | .#define bfd_link_hash_table_create(abfd) \ |
1349 | . BFD_SEND (abfd, _bfd_link_hash_table_create, (abfd)) | |
1350 | . | |
e2d34d7d DJ |
1351 | .#define bfd_link_hash_table_free(abfd, hash) \ |
1352 | . BFD_SEND (abfd, _bfd_link_hash_table_free, (hash)) | |
1353 | . | |
252b5132 RH |
1354 | .#define bfd_link_add_symbols(abfd, info) \ |
1355 | . BFD_SEND (abfd, _bfd_link_add_symbols, (abfd, info)) | |
1356 | . | |
1449d79b | 1357 | .#define bfd_link_just_syms(abfd, sec, info) \ |
2d653fc7 AM |
1358 | . BFD_SEND (abfd, _bfd_link_just_syms, (sec, info)) |
1359 | . | |
252b5132 RH |
1360 | .#define bfd_final_link(abfd, info) \ |
1361 | . BFD_SEND (abfd, _bfd_final_link, (abfd, info)) | |
1362 | . | |
1363 | .#define bfd_free_cached_info(abfd) \ | |
1364 | . BFD_SEND (abfd, _bfd_free_cached_info, (abfd)) | |
1365 | . | |
1366 | .#define bfd_get_dynamic_symtab_upper_bound(abfd) \ | |
1367 | . BFD_SEND (abfd, _bfd_get_dynamic_symtab_upper_bound, (abfd)) | |
1368 | . | |
1369 | .#define bfd_print_private_bfd_data(abfd, file)\ | |
1370 | . BFD_SEND (abfd, _bfd_print_private_bfd_data, (abfd, file)) | |
1371 | . | |
1372 | .#define bfd_canonicalize_dynamic_symtab(abfd, asymbols) \ | |
1373 | . BFD_SEND (abfd, _bfd_canonicalize_dynamic_symtab, (abfd, asymbols)) | |
1374 | . | |
c9727e01 AM |
1375 | .#define bfd_get_synthetic_symtab(abfd, count, syms, dyncount, dynsyms, ret) \ |
1376 | . BFD_SEND (abfd, _bfd_get_synthetic_symtab, (abfd, count, syms, \ | |
1377 | . dyncount, dynsyms, ret)) | |
4c45e5c9 | 1378 | . |
252b5132 RH |
1379 | .#define bfd_get_dynamic_reloc_upper_bound(abfd) \ |
1380 | . BFD_SEND (abfd, _bfd_get_dynamic_reloc_upper_bound, (abfd)) | |
1381 | . | |
1382 | .#define bfd_canonicalize_dynamic_reloc(abfd, arels, asyms) \ | |
1383 | . BFD_SEND (abfd, _bfd_canonicalize_dynamic_reloc, (abfd, arels, asyms)) | |
1384 | . | |
1385 | .extern bfd_byte *bfd_get_relocated_section_contents | |
c58b9523 AM |
1386 | . (bfd *, struct bfd_link_info *, struct bfd_link_order *, bfd_byte *, |
1387 | . bfd_boolean, asymbol **); | |
252b5132 RH |
1388 | . |
1389 | ||
1390 | */ | |
1391 | ||
1392 | bfd_byte * | |
c58b9523 AM |
1393 | bfd_get_relocated_section_contents (bfd *abfd, |
1394 | struct bfd_link_info *link_info, | |
1395 | struct bfd_link_order *link_order, | |
1396 | bfd_byte *data, | |
1397 | bfd_boolean relocatable, | |
1398 | asymbol **symbols) | |
252b5132 RH |
1399 | { |
1400 | bfd *abfd2; | |
c58b9523 AM |
1401 | bfd_byte *(*fn) (bfd *, struct bfd_link_info *, struct bfd_link_order *, |
1402 | bfd_byte *, bfd_boolean, asymbol **); | |
252b5132 RH |
1403 | |
1404 | if (link_order->type == bfd_indirect_link_order) | |
1405 | { | |
1406 | abfd2 = link_order->u.indirect.section->owner; | |
55ab10f0 | 1407 | if (abfd2 == NULL) |
252b5132 RH |
1408 | abfd2 = abfd; |
1409 | } | |
1410 | else | |
1411 | abfd2 = abfd; | |
55ab10f0 | 1412 | |
252b5132 RH |
1413 | fn = abfd2->xvec->_bfd_get_relocated_section_contents; |
1414 | ||
1049f94e | 1415 | return (*fn) (abfd, link_info, link_order, data, relocatable, symbols); |
252b5132 RH |
1416 | } |
1417 | ||
1418 | /* Record information about an ELF program header. */ | |
1419 | ||
b34976b6 | 1420 | bfd_boolean |
c58b9523 AM |
1421 | bfd_record_phdr (bfd *abfd, |
1422 | unsigned long type, | |
1423 | bfd_boolean flags_valid, | |
1424 | flagword flags, | |
1425 | bfd_boolean at_valid, | |
1426 | bfd_vma at, | |
1427 | bfd_boolean includes_filehdr, | |
1428 | bfd_boolean includes_phdrs, | |
1429 | unsigned int count, | |
1430 | asection **secs) | |
252b5132 RH |
1431 | { |
1432 | struct elf_segment_map *m, **pm; | |
dc810e39 | 1433 | bfd_size_type amt; |
252b5132 RH |
1434 | |
1435 | if (bfd_get_flavour (abfd) != bfd_target_elf_flavour) | |
b34976b6 | 1436 | return TRUE; |
252b5132 | 1437 | |
dc810e39 AM |
1438 | amt = sizeof (struct elf_segment_map); |
1439 | amt += ((bfd_size_type) count - 1) * sizeof (asection *); | |
fb70130a | 1440 | m = bfd_zalloc (abfd, amt); |
252b5132 | 1441 | if (m == NULL) |
b34976b6 | 1442 | return FALSE; |
252b5132 | 1443 | |
252b5132 RH |
1444 | m->p_type = type; |
1445 | m->p_flags = flags; | |
1446 | m->p_paddr = at; | |
c58b9523 AM |
1447 | m->p_flags_valid = flags_valid; |
1448 | m->p_paddr_valid = at_valid; | |
1449 | m->includes_filehdr = includes_filehdr; | |
1450 | m->includes_phdrs = includes_phdrs; | |
252b5132 RH |
1451 | m->count = count; |
1452 | if (count > 0) | |
1453 | memcpy (m->sections, secs, count * sizeof (asection *)); | |
1454 | ||
1455 | for (pm = &elf_tdata (abfd)->segment_map; *pm != NULL; pm = &(*pm)->next) | |
1456 | ; | |
1457 | *pm = m; | |
1458 | ||
b34976b6 | 1459 | return TRUE; |
252b5132 | 1460 | } |
ae4221d7 | 1461 | |
01a3c213 AM |
1462 | #ifdef BFD64 |
1463 | /* Return true iff this target is 32-bit. */ | |
1464 | ||
1465 | static bfd_boolean | |
1466 | is32bit (bfd *abfd) | |
ae4221d7 L |
1467 | { |
1468 | if (bfd_get_flavour (abfd) == bfd_target_elf_flavour) | |
01a3c213 AM |
1469 | { |
1470 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
1471 | return bed->s->elfclass == ELFCLASS32; | |
1472 | } | |
1473 | ||
1474 | /* For non-ELF, make a guess based on the target name. */ | |
1475 | return (strstr (bfd_get_target (abfd), "64") == NULL | |
1476 | && strcmp (bfd_get_target (abfd), "mmo") != 0); | |
ae4221d7 | 1477 | } |
01a3c213 AM |
1478 | #endif |
1479 | ||
1480 | /* bfd_sprintf_vma and bfd_fprintf_vma display an address in the | |
1481 | target's address size. */ | |
ae4221d7 L |
1482 | |
1483 | void | |
01a3c213 | 1484 | bfd_sprintf_vma (bfd *abfd ATTRIBUTE_UNUSED, char *buf, bfd_vma value) |
ae4221d7 | 1485 | { |
970ccc77 | 1486 | #ifdef BFD64 |
01a3c213 AM |
1487 | if (is32bit (abfd)) |
1488 | { | |
1489 | sprintf (buf, "%08lx", (unsigned long) value & 0xffffffff); | |
1490 | return; | |
1491 | } | |
970ccc77 | 1492 | #endif |
01a3c213 AM |
1493 | sprintf_vma (buf, value); |
1494 | } | |
1495 | ||
1496 | void | |
1497 | bfd_fprintf_vma (bfd *abfd ATTRIBUTE_UNUSED, void *stream, bfd_vma value) | |
1498 | { | |
1499 | #ifdef BFD64 | |
1500 | if (is32bit (abfd)) | |
1501 | { | |
1502 | fprintf ((FILE *) stream, "%08lx", (unsigned long) value & 0xffffffff); | |
1503 | return; | |
1504 | } | |
1505 | #endif | |
1506 | fprintf_vma ((FILE *) stream, value); | |
ae4221d7 | 1507 | } |
8c98ec7d AO |
1508 | |
1509 | /* | |
1510 | FUNCTION | |
1511 | bfd_alt_mach_code | |
1512 | ||
1513 | SYNOPSIS | |
ed781d5d | 1514 | bfd_boolean bfd_alt_mach_code (bfd *abfd, int alternative); |
8c98ec7d AO |
1515 | |
1516 | DESCRIPTION | |
1517 | ||
1518 | When more than one machine code number is available for the | |
1519 | same machine type, this function can be used to switch between | |
47badb7b | 1520 | the preferred one (alternative == 0) and any others. Currently, |
8c98ec7d AO |
1521 | only ELF supports this feature, with up to two alternate |
1522 | machine codes. | |
1523 | */ | |
1524 | ||
b34976b6 | 1525 | bfd_boolean |
c58b9523 | 1526 | bfd_alt_mach_code (bfd *abfd, int alternative) |
8c98ec7d AO |
1527 | { |
1528 | if (bfd_get_flavour (abfd) == bfd_target_elf_flavour) | |
1529 | { | |
1530 | int code; | |
1531 | ||
47badb7b | 1532 | switch (alternative) |
8c98ec7d AO |
1533 | { |
1534 | case 0: | |
1535 | code = get_elf_backend_data (abfd)->elf_machine_code; | |
1536 | break; | |
1537 | ||
1538 | case 1: | |
1539 | code = get_elf_backend_data (abfd)->elf_machine_alt1; | |
1540 | if (code == 0) | |
b34976b6 | 1541 | return FALSE; |
8c98ec7d AO |
1542 | break; |
1543 | ||
1544 | case 2: | |
1545 | code = get_elf_backend_data (abfd)->elf_machine_alt2; | |
1546 | if (code == 0) | |
b34976b6 | 1547 | return FALSE; |
8c98ec7d AO |
1548 | break; |
1549 | ||
1550 | default: | |
b34976b6 | 1551 | return FALSE; |
8c98ec7d AO |
1552 | } |
1553 | ||
1554 | elf_elfheader (abfd)->e_machine = code; | |
1555 | ||
b34976b6 | 1556 | return TRUE; |
8c98ec7d AO |
1557 | } |
1558 | ||
b34976b6 | 1559 | return FALSE; |
8c98ec7d | 1560 | } |
e84d6fca AM |
1561 | |
1562 | /* | |
1563 | CODE_FRAGMENT | |
1564 | ||
1565 | .struct bfd_preserve | |
1566 | .{ | |
c58b9523 AM |
1567 | . void *marker; |
1568 | . void *tdata; | |
e84d6fca AM |
1569 | . flagword flags; |
1570 | . const struct bfd_arch_info *arch_info; | |
198beae2 | 1571 | . struct bfd_section *sections; |
5daa8fe7 | 1572 | . struct bfd_section *section_last; |
e84d6fca AM |
1573 | . unsigned int section_count; |
1574 | . struct bfd_hash_table section_htab; | |
1575 | .}; | |
1576 | . | |
1577 | */ | |
1578 | ||
1579 | /* | |
1580 | FUNCTION | |
1581 | bfd_preserve_save | |
1582 | ||
1583 | SYNOPSIS | |
b34976b6 | 1584 | bfd_boolean bfd_preserve_save (bfd *, struct bfd_preserve *); |
e84d6fca AM |
1585 | |
1586 | DESCRIPTION | |
1587 | When testing an object for compatibility with a particular | |
1588 | target back-end, the back-end object_p function needs to set | |
1589 | up certain fields in the bfd on successfully recognizing the | |
1590 | object. This typically happens in a piecemeal fashion, with | |
1591 | failures possible at many points. On failure, the bfd is | |
1592 | supposed to be restored to its initial state, which is | |
1593 | virtually impossible. However, restoring a subset of the bfd | |
1594 | state works in practice. This function stores the subset and | |
1595 | reinitializes the bfd. | |
1596 | ||
1597 | */ | |
1598 | ||
b34976b6 | 1599 | bfd_boolean |
c58b9523 | 1600 | bfd_preserve_save (bfd *abfd, struct bfd_preserve *preserve) |
e84d6fca AM |
1601 | { |
1602 | preserve->tdata = abfd->tdata.any; | |
1603 | preserve->arch_info = abfd->arch_info; | |
1604 | preserve->flags = abfd->flags; | |
e84d6fca | 1605 | preserve->sections = abfd->sections; |
5daa8fe7 | 1606 | preserve->section_last = abfd->section_last; |
e84d6fca AM |
1607 | preserve->section_count = abfd->section_count; |
1608 | preserve->section_htab = abfd->section_htab; | |
1609 | ||
66eb6687 AM |
1610 | if (! bfd_hash_table_init (&abfd->section_htab, bfd_section_hash_newfunc, |
1611 | sizeof (struct section_hash_entry))) | |
b34976b6 | 1612 | return FALSE; |
e84d6fca AM |
1613 | |
1614 | abfd->tdata.any = NULL; | |
1615 | abfd->arch_info = &bfd_default_arch_struct; | |
3ae41454 | 1616 | abfd->flags &= BFD_IN_MEMORY; |
e84d6fca | 1617 | abfd->sections = NULL; |
5daa8fe7 | 1618 | abfd->section_last = NULL; |
e84d6fca AM |
1619 | abfd->section_count = 0; |
1620 | ||
b34976b6 | 1621 | return TRUE; |
e84d6fca AM |
1622 | } |
1623 | ||
1624 | /* | |
1625 | FUNCTION | |
1626 | bfd_preserve_restore | |
1627 | ||
1628 | SYNOPSIS | |
1629 | void bfd_preserve_restore (bfd *, struct bfd_preserve *); | |
1630 | ||
1631 | DESCRIPTION | |
1632 | This function restores bfd state saved by bfd_preserve_save. | |
1633 | If MARKER is non-NULL in struct bfd_preserve then that block | |
1634 | and all subsequently bfd_alloc'd memory is freed. | |
1635 | ||
1636 | */ | |
1637 | ||
1638 | void | |
c58b9523 | 1639 | bfd_preserve_restore (bfd *abfd, struct bfd_preserve *preserve) |
e84d6fca AM |
1640 | { |
1641 | bfd_hash_table_free (&abfd->section_htab); | |
1642 | ||
1643 | abfd->tdata.any = preserve->tdata; | |
1644 | abfd->arch_info = preserve->arch_info; | |
1645 | abfd->flags = preserve->flags; | |
e84d6fca AM |
1646 | abfd->section_htab = preserve->section_htab; |
1647 | abfd->sections = preserve->sections; | |
5daa8fe7 | 1648 | abfd->section_last = preserve->section_last; |
e84d6fca AM |
1649 | abfd->section_count = preserve->section_count; |
1650 | ||
1651 | /* bfd_release frees all memory more recently bfd_alloc'd than | |
1652 | its arg, as well as its arg. */ | |
1653 | if (preserve->marker != NULL) | |
1654 | { | |
1655 | bfd_release (abfd, preserve->marker); | |
1656 | preserve->marker = NULL; | |
1657 | } | |
1658 | } | |
1659 | ||
1660 | /* | |
1661 | FUNCTION | |
1662 | bfd_preserve_finish | |
1663 | ||
1664 | SYNOPSIS | |
1665 | void bfd_preserve_finish (bfd *, struct bfd_preserve *); | |
1666 | ||
1667 | DESCRIPTION | |
1668 | This function should be called when the bfd state saved by | |
1669 | bfd_preserve_save is no longer needed. ie. when the back-end | |
1670 | object_p function returns with success. | |
1671 | ||
1672 | */ | |
1673 | ||
1674 | void | |
c58b9523 | 1675 | bfd_preserve_finish (bfd *abfd ATTRIBUTE_UNUSED, struct bfd_preserve *preserve) |
e84d6fca AM |
1676 | { |
1677 | /* It would be nice to be able to free more memory here, eg. old | |
1678 | tdata, but that's not possible since these blocks are sitting | |
1679 | inside bfd_alloc'd memory. The section hash is on a separate | |
1680 | objalloc. */ | |
1681 | bfd_hash_table_free (&preserve->section_htab); | |
1682 | } | |
24718e3b L |
1683 | |
1684 | /* | |
1685 | FUNCTION | |
1686 | bfd_emul_get_maxpagesize | |
1687 | ||
1688 | SYNOPSIS | |
1689 | bfd_vma bfd_emul_get_maxpagesize (const char *); | |
1690 | ||
1691 | DESCRIPTION | |
1692 | Returns the maximum page size, in bytes, as determined by | |
1693 | emulation. | |
1694 | ||
1695 | RETURNS | |
1696 | Returns the maximum page size in bytes for ELF, abort | |
1697 | otherwise. | |
1698 | */ | |
1699 | ||
1700 | bfd_vma | |
1701 | bfd_emul_get_maxpagesize (const char *emul) | |
1702 | { | |
1703 | const bfd_target *target; | |
1704 | ||
1705 | target = bfd_find_target (emul, NULL); | |
1706 | if (target != NULL | |
1707 | && target->flavour == bfd_target_elf_flavour) | |
1708 | return xvec_get_elf_backend_data (target)->maxpagesize; | |
1709 | ||
1710 | abort (); | |
1711 | return 0; | |
1712 | } | |
1713 | ||
1714 | static void | |
1715 | bfd_elf_set_pagesize (const bfd_target *target, bfd_vma size, | |
1716 | int offset, const bfd_target *orig_target) | |
1717 | { | |
1718 | if (target->flavour == bfd_target_elf_flavour) | |
1719 | { | |
1720 | const struct elf_backend_data *bed; | |
1721 | ||
1722 | bed = xvec_get_elf_backend_data (target); | |
1723 | *((bfd_vma *) ((char *) bed + offset)) = size; | |
1724 | } | |
1725 | ||
1726 | if (target->alternative_target | |
1727 | && target->alternative_target != orig_target) | |
1728 | bfd_elf_set_pagesize (target->alternative_target, size, offset, | |
1729 | orig_target); | |
1730 | } | |
1731 | ||
1732 | /* | |
1733 | FUNCTION | |
1734 | bfd_emul_set_maxpagesize | |
1735 | ||
1736 | SYNOPSIS | |
1737 | void bfd_emul_set_maxpagesize (const char *, bfd_vma); | |
1738 | ||
1739 | DESCRIPTION | |
1740 | For ELF, set the maximum page size for the emulation. It is | |
1741 | a no-op for other formats. | |
1742 | ||
1743 | */ | |
1744 | ||
1745 | void | |
1746 | bfd_emul_set_maxpagesize (const char *emul, bfd_vma size) | |
1747 | { | |
1748 | const bfd_target *target; | |
1749 | ||
1750 | target = bfd_find_target (emul, NULL); | |
1751 | if (target) | |
1752 | bfd_elf_set_pagesize (target, size, | |
1753 | offsetof (struct elf_backend_data, | |
1754 | maxpagesize), target); | |
1755 | } | |
1756 | ||
1757 | /* | |
1758 | FUNCTION | |
1759 | bfd_emul_get_commonpagesize | |
1760 | ||
1761 | SYNOPSIS | |
1762 | bfd_vma bfd_emul_get_commonpagesize (const char *); | |
1763 | ||
1764 | DESCRIPTION | |
1765 | Returns the common page size, in bytes, as determined by | |
1766 | emulation. | |
1767 | ||
1768 | RETURNS | |
1769 | Returns the common page size in bytes for ELF, abort otherwise. | |
1770 | */ | |
1771 | ||
1772 | bfd_vma | |
1773 | bfd_emul_get_commonpagesize (const char *emul) | |
1774 | { | |
1775 | const bfd_target *target; | |
1776 | ||
1777 | target = bfd_find_target (emul, NULL); | |
1778 | if (target != NULL | |
1779 | && target->flavour == bfd_target_elf_flavour) | |
1780 | return xvec_get_elf_backend_data (target)->commonpagesize; | |
1781 | ||
1782 | abort (); | |
1783 | return 0; | |
1784 | } | |
1785 | ||
1786 | /* | |
1787 | FUNCTION | |
1788 | bfd_emul_set_commonpagesize | |
1789 | ||
1790 | SYNOPSIS | |
1791 | void bfd_emul_set_commonpagesize (const char *, bfd_vma); | |
1792 | ||
1793 | DESCRIPTION | |
1794 | For ELF, set the common page size for the emulation. It is | |
1795 | a no-op for other formats. | |
1796 | ||
1797 | */ | |
1798 | ||
1799 | void | |
1800 | bfd_emul_set_commonpagesize (const char *emul, bfd_vma size) | |
1801 | { | |
1802 | const bfd_target *target; | |
1803 | ||
1804 | target = bfd_find_target (emul, NULL); | |
1805 | if (target) | |
1806 | bfd_elf_set_pagesize (target, size, | |
1807 | offsetof (struct elf_backend_data, | |
1808 | commonpagesize), target); | |
1809 | } | |
3fad56a3 AM |
1810 | |
1811 | /* | |
1812 | FUNCTION | |
1813 | bfd_demangle | |
1814 | ||
1815 | SYNOPSIS | |
1816 | char *bfd_demangle (bfd *, const char *, int); | |
1817 | ||
1818 | DESCRIPTION | |
1819 | Wrapper around cplus_demangle. Strips leading underscores and | |
1820 | other such chars that would otherwise confuse the demangler. | |
1821 | If passed a g++ v3 ABI mangled name, returns a buffer allocated | |
1822 | with malloc holding the demangled name. Returns NULL otherwise | |
1823 | and on memory alloc failure. | |
1824 | */ | |
1825 | ||
1826 | char * | |
1827 | bfd_demangle (bfd *abfd, const char *name, int options) | |
1828 | { | |
1829 | char *res, *alloc; | |
1830 | const char *pre, *suf; | |
1831 | size_t pre_len; | |
1832 | ||
1833 | if (abfd != NULL | |
1834 | && *name != '\0' | |
1835 | && bfd_get_symbol_leading_char (abfd) == *name) | |
1836 | ++name; | |
1837 | ||
1838 | /* This is a hack for better error reporting on XCOFF, PowerPC64-ELF | |
1839 | or the MS PE format. These formats have a number of leading '.'s | |
1840 | on at least some symbols, so we remove all dots to avoid | |
1841 | confusing the demangler. */ | |
1842 | pre = name; | |
1843 | while (*name == '.' || *name == '$') | |
1844 | ++name; | |
1845 | pre_len = name - pre; | |
1846 | ||
1847 | /* Strip off @plt and suchlike too. */ | |
1848 | alloc = NULL; | |
1849 | suf = strchr (name, '@'); | |
1850 | if (suf != NULL) | |
1851 | { | |
1852 | alloc = bfd_malloc (suf - name + 1); | |
1853 | if (alloc == NULL) | |
1854 | return NULL; | |
1855 | memcpy (alloc, name, suf - name); | |
1856 | alloc[suf - name] = '\0'; | |
1857 | name = alloc; | |
1858 | } | |
1859 | ||
1860 | res = cplus_demangle (name, options); | |
1861 | ||
1862 | if (alloc != NULL) | |
1863 | free (alloc); | |
1864 | ||
1865 | if (res == NULL) | |
1866 | return NULL; | |
1867 | ||
1868 | /* Put back any prefix or suffix. */ | |
1869 | if (pre_len != 0 || suf != NULL) | |
1870 | { | |
1871 | size_t len; | |
1872 | size_t suf_len; | |
1873 | char *final; | |
1874 | ||
1875 | len = strlen (res); | |
1876 | if (suf == NULL) | |
1877 | suf = res + len; | |
1878 | suf_len = strlen (suf) + 1; | |
1879 | final = bfd_malloc (pre_len + len + suf_len); | |
32e8a950 NC |
1880 | if (final != NULL) |
1881 | { | |
1882 | memcpy (final, pre, pre_len); | |
1883 | memcpy (final + pre_len, res, len); | |
1884 | memcpy (final + pre_len + len, suf, suf_len); | |
1885 | } | |
3fad56a3 AM |
1886 | free (res); |
1887 | res = final; | |
1888 | } | |
1889 | ||
1890 | return res; | |
1891 | } |