Commit | Line | Data |
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252b5132 | 1 | /* Generic BFD library interface and support routines. |
7898deda | 2 | Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
3168356f | 3 | 2000, 2001, 2002, 2003, 2004, 2005, 2006 |
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 | |
11 | the Free Software Foundation; either version 2 of the License, or | |
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 | |
3e110533 | 21 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ |
252b5132 RH |
22 | |
23 | /* | |
24 | SECTION | |
25 | <<typedef bfd>> | |
26 | ||
27 | A BFD has type <<bfd>>; objects of this type are the | |
28 | cornerstone of any application using BFD. Using BFD | |
29 | consists of making references though the BFD and to data in the BFD. | |
30 | ||
31 | Here is the structure that defines the type <<bfd>>. It | |
32 | contains the major data about the file and pointers | |
33 | to the rest of the data. | |
34 | ||
35 | CODE_FRAGMENT | |
36 | . | |
c2852e88 | 37 | .struct bfd |
252b5132 | 38 | .{ |
52b69c9e AO |
39 | . {* A unique identifier of the BFD *} |
40 | . unsigned int id; | |
41 | . | |
b5f79c76 NC |
42 | . {* The filename the application opened the BFD with. *} |
43 | . const char *filename; | |
252b5132 | 44 | . |
b5f79c76 NC |
45 | . {* A pointer to the target jump table. *} |
46 | . const struct bfd_target *xvec; | |
252b5132 | 47 | . |
40838a72 AC |
48 | . {* The IOSTREAM, and corresponding IO vector that provide access |
49 | . to the file backing the BFD. *} | |
c58b9523 | 50 | . void *iostream; |
40838a72 | 51 | . const struct bfd_iovec *iovec; |
b5f79c76 NC |
52 | . |
53 | . {* Is the file descriptor being cached? That is, can it be closed as | |
54 | . needed, and re-opened when accessed later? *} | |
b34976b6 | 55 | . bfd_boolean cacheable; |
b5f79c76 NC |
56 | . |
57 | . {* Marks whether there was a default target specified when the | |
58 | . BFD was opened. This is used to select which matching algorithm | |
59 | . to use to choose the back end. *} | |
b34976b6 | 60 | . bfd_boolean target_defaulted; |
b5f79c76 NC |
61 | . |
62 | . {* The caching routines use these to maintain a | |
63 | . least-recently-used list of BFDs. *} | |
2ce40c65 | 64 | . struct bfd *lru_prev, *lru_next; |
b5f79c76 NC |
65 | . |
66 | . {* When a file is closed by the caching routines, BFD retains | |
67 | . state information on the file here... *} | |
68 | . ufile_ptr where; | |
69 | . | |
70 | . {* ... and here: (``once'' means at least once). *} | |
b34976b6 | 71 | . bfd_boolean opened_once; |
b5f79c76 NC |
72 | . |
73 | . {* Set if we have a locally maintained mtime value, rather than | |
74 | . getting it from the file each time. *} | |
b34976b6 | 75 | . bfd_boolean mtime_set; |
b5f79c76 | 76 | . |
b34976b6 | 77 | . {* File modified time, if mtime_set is TRUE. *} |
b5f79c76 NC |
78 | . long mtime; |
79 | . | |
80 | . {* Reserved for an unimplemented file locking extension. *} | |
81 | . int ifd; | |
82 | . | |
83 | . {* The format which belongs to the BFD. (object, core, etc.) *} | |
84 | . bfd_format format; | |
85 | . | |
86 | . {* The direction with which the BFD was opened. *} | |
87 | . enum bfd_direction | |
88 | . { | |
89 | . no_direction = 0, | |
90 | . read_direction = 1, | |
91 | . write_direction = 2, | |
92 | . both_direction = 3 | |
93 | . } | |
94 | . direction; | |
95 | . | |
96 | . {* Format_specific flags. *} | |
97 | . flagword flags; | |
98 | . | |
99 | . {* Currently my_archive is tested before adding origin to | |
100 | . anything. I believe that this can become always an add of | |
101 | . origin, with origin set to 0 for non archive files. *} | |
102 | . ufile_ptr origin; | |
103 | . | |
104 | . {* Remember when output has begun, to stop strange things | |
105 | . from happening. *} | |
b34976b6 | 106 | . bfd_boolean output_has_begun; |
b5f79c76 NC |
107 | . |
108 | . {* A hash table for section names. *} | |
109 | . struct bfd_hash_table section_htab; | |
110 | . | |
111 | . {* Pointer to linked list of sections. *} | |
198beae2 | 112 | . struct bfd_section *sections; |
b5f79c76 | 113 | . |
5daa8fe7 L |
114 | . {* The last section on the section list. *} |
115 | . struct bfd_section *section_last; | |
b5f79c76 NC |
116 | . |
117 | . {* The number of sections. *} | |
118 | . unsigned int section_count; | |
119 | . | |
120 | . {* Stuff only useful for object files: | |
121 | . The start address. *} | |
122 | . bfd_vma start_address; | |
123 | . | |
124 | . {* Used for input and output. *} | |
125 | . unsigned int symcount; | |
126 | . | |
127 | . {* Symbol table for output BFD (with symcount entries). *} | |
fc0a2244 | 128 | . struct bfd_symbol **outsymbols; |
b5f79c76 | 129 | . |
1f70368c DJ |
130 | . {* Used for slurped dynamic symbol tables. *} |
131 | . unsigned int dynsymcount; | |
132 | . | |
b5f79c76 NC |
133 | . {* Pointer to structure which contains architecture information. *} |
134 | . const struct bfd_arch_info *arch_info; | |
135 | . | |
b58f81ae DJ |
136 | . {* Flag set if symbols from this BFD should not be exported. *} |
137 | . bfd_boolean no_export; | |
138 | . | |
b5f79c76 | 139 | . {* Stuff only useful for archives. *} |
c58b9523 | 140 | . void *arelt_data; |
2ce40c65 AM |
141 | . struct bfd *my_archive; {* The containing archive BFD. *} |
142 | . struct bfd *next; {* The next BFD in the archive. *} | |
143 | . struct bfd *archive_head; {* The first BFD in the archive. *} | |
b34976b6 | 144 | . bfd_boolean has_armap; |
252b5132 | 145 | . |
b5f79c76 | 146 | . {* A chain of BFD structures involved in a link. *} |
2ce40c65 | 147 | . struct bfd *link_next; |
b5f79c76 NC |
148 | . |
149 | . {* A field used by _bfd_generic_link_add_archive_symbols. This will | |
150 | . be used only for archive elements. *} | |
151 | . int archive_pass; | |
152 | . | |
153 | . {* Used by the back end to hold private data. *} | |
154 | . union | |
155 | . { | |
252b5132 RH |
156 | . struct aout_data_struct *aout_data; |
157 | . struct artdata *aout_ar_data; | |
158 | . struct _oasys_data *oasys_obj_data; | |
159 | . struct _oasys_ar_data *oasys_ar_data; | |
160 | . struct coff_tdata *coff_obj_data; | |
161 | . struct pe_tdata *pe_obj_data; | |
162 | . struct xcoff_tdata *xcoff_obj_data; | |
163 | . struct ecoff_tdata *ecoff_obj_data; | |
164 | . struct ieee_data_struct *ieee_data; | |
165 | . struct ieee_ar_data_struct *ieee_ar_data; | |
166 | . struct srec_data_struct *srec_data; | |
167 | . struct ihex_data_struct *ihex_data; | |
168 | . struct tekhex_data_struct *tekhex_data; | |
169 | . struct elf_obj_tdata *elf_obj_data; | |
170 | . struct nlm_obj_tdata *nlm_obj_data; | |
171 | . struct bout_data_struct *bout_data; | |
3c3bdf30 | 172 | . struct mmo_data_struct *mmo_data; |
252b5132 RH |
173 | . struct sun_core_struct *sun_core_data; |
174 | . struct sco5_core_struct *sco5_core_data; | |
175 | . struct trad_core_struct *trad_core_data; | |
176 | . struct som_data_struct *som_data; | |
177 | . struct hpux_core_struct *hpux_core_data; | |
178 | . struct hppabsd_core_struct *hppabsd_core_data; | |
179 | . struct sgi_core_struct *sgi_core_data; | |
180 | . struct lynx_core_struct *lynx_core_data; | |
181 | . struct osf_core_struct *osf_core_data; | |
182 | . struct cisco_core_struct *cisco_core_data; | |
183 | . struct versados_data_struct *versados_data; | |
184 | . struct netbsd_core_struct *netbsd_core_data; | |
3af9a47b NC |
185 | . struct mach_o_data_struct *mach_o_data; |
186 | . struct mach_o_fat_data_struct *mach_o_fat_data; | |
187 | . struct bfd_pef_data_struct *pef_data; | |
188 | . struct bfd_pef_xlib_data_struct *pef_xlib_data; | |
189 | . struct bfd_sym_data_struct *sym_data; | |
c58b9523 | 190 | . void *any; |
b5f79c76 NC |
191 | . } |
192 | . tdata; | |
aebad5fe | 193 | . |
b5f79c76 | 194 | . {* Used by the application to hold private data. *} |
c58b9523 | 195 | . void *usrdata; |
252b5132 RH |
196 | . |
197 | . {* Where all the allocated stuff under this BFD goes. This is a | |
c58b9523 AM |
198 | . struct objalloc *, but we use void * to avoid requiring the inclusion |
199 | . of objalloc.h. *} | |
200 | . void *memory; | |
252b5132 RH |
201 | .}; |
202 | . | |
203 | */ | |
204 | ||
205 | #include "bfd.h" | |
6a0735ef | 206 | #include "bfdver.h" |
252b5132 | 207 | #include "sysdep.h" |
252b5132 | 208 | #include <stdarg.h> |
252b5132 | 209 | #include "libiberty.h" |
3882b010 | 210 | #include "safe-ctype.h" |
252b5132 RH |
211 | #include "bfdlink.h" |
212 | #include "libbfd.h" | |
213 | #include "coff/internal.h" | |
214 | #include "coff/sym.h" | |
215 | #include "libcoff.h" | |
216 | #include "libecoff.h" | |
217 | #undef obj_symbols | |
218 | #include "elf-bfd.h" | |
3168356f AM |
219 | |
220 | #ifndef EXIT_FAILURE | |
221 | #define EXIT_FAILURE 1 | |
222 | #endif | |
223 | ||
252b5132 RH |
224 | \f |
225 | /* provide storage for subsystem, stack and heap data which may have been | |
226 | passed in on the command line. Ld puts this data into a bfd_link_info | |
227 | struct which ultimately gets passed in to the bfd. When it arrives, copy | |
228 | it to the following struct so that the data will be available in coffcode.h | |
229 | where it is needed. The typedef's used are defined in bfd.h */ | |
252b5132 RH |
230 | \f |
231 | /* | |
232 | SECTION | |
233 | Error reporting | |
234 | ||
235 | Most BFD functions return nonzero on success (check their | |
236 | individual documentation for precise semantics). On an error, | |
237 | they call <<bfd_set_error>> to set an error condition that callers | |
238 | can check by calling <<bfd_get_error>>. | |
239 | If that returns <<bfd_error_system_call>>, then check | |
240 | <<errno>>. | |
241 | ||
242 | The easiest way to report a BFD error to the user is to | |
243 | use <<bfd_perror>>. | |
244 | ||
245 | SUBSECTION | |
246 | Type <<bfd_error_type>> | |
247 | ||
248 | The values returned by <<bfd_get_error>> are defined by the | |
249 | enumerated type <<bfd_error_type>>. | |
250 | ||
251 | CODE_FRAGMENT | |
252 | . | |
253 | .typedef enum bfd_error | |
254 | .{ | |
255 | . bfd_error_no_error = 0, | |
256 | . bfd_error_system_call, | |
257 | . bfd_error_invalid_target, | |
258 | . bfd_error_wrong_format, | |
3619ad04 | 259 | . bfd_error_wrong_object_format, |
252b5132 RH |
260 | . bfd_error_invalid_operation, |
261 | . bfd_error_no_memory, | |
262 | . bfd_error_no_symbols, | |
263 | . bfd_error_no_armap, | |
264 | . bfd_error_no_more_archived_files, | |
265 | . bfd_error_malformed_archive, | |
266 | . bfd_error_file_not_recognized, | |
267 | . bfd_error_file_ambiguously_recognized, | |
268 | . bfd_error_no_contents, | |
269 | . bfd_error_nonrepresentable_section, | |
270 | . bfd_error_no_debug_section, | |
271 | . bfd_error_bad_value, | |
272 | . bfd_error_file_truncated, | |
273 | . bfd_error_file_too_big, | |
274 | . bfd_error_invalid_error_code | |
b5f79c76 NC |
275 | .} |
276 | .bfd_error_type; | |
252b5132 RH |
277 | . |
278 | */ | |
279 | ||
280 | static bfd_error_type bfd_error = bfd_error_no_error; | |
281 | ||
55ab10f0 NC |
282 | const char *const bfd_errmsgs[] = |
283 | { | |
284 | N_("No error"), | |
285 | N_("System call error"), | |
286 | N_("Invalid bfd target"), | |
287 | N_("File in wrong format"), | |
3619ad04 | 288 | N_("Archive object file in wrong format"), |
55ab10f0 NC |
289 | N_("Invalid operation"), |
290 | N_("Memory exhausted"), | |
291 | N_("No symbols"), | |
292 | N_("Archive has no index; run ranlib to add one"), | |
293 | N_("No more archived files"), | |
294 | N_("Malformed archive"), | |
295 | N_("File format not recognized"), | |
296 | N_("File format is ambiguous"), | |
297 | N_("Section has no contents"), | |
298 | N_("Nonrepresentable section on output"), | |
299 | N_("Symbol needs debug section which does not exist"), | |
300 | N_("Bad value"), | |
301 | N_("File truncated"), | |
302 | N_("File too big"), | |
303 | N_("#<Invalid error code>") | |
304 | }; | |
252b5132 RH |
305 | |
306 | /* | |
307 | FUNCTION | |
308 | bfd_get_error | |
309 | ||
310 | SYNOPSIS | |
311 | bfd_error_type bfd_get_error (void); | |
312 | ||
313 | DESCRIPTION | |
314 | Return the current BFD error condition. | |
315 | */ | |
316 | ||
317 | bfd_error_type | |
c58b9523 | 318 | bfd_get_error (void) |
252b5132 RH |
319 | { |
320 | return bfd_error; | |
321 | } | |
322 | ||
323 | /* | |
324 | FUNCTION | |
325 | bfd_set_error | |
326 | ||
327 | SYNOPSIS | |
328 | void bfd_set_error (bfd_error_type error_tag); | |
329 | ||
330 | DESCRIPTION | |
331 | Set the BFD error condition to be @var{error_tag}. | |
332 | */ | |
333 | ||
334 | void | |
c58b9523 | 335 | bfd_set_error (bfd_error_type error_tag) |
252b5132 RH |
336 | { |
337 | bfd_error = error_tag; | |
338 | } | |
339 | ||
340 | /* | |
341 | FUNCTION | |
342 | bfd_errmsg | |
343 | ||
344 | SYNOPSIS | |
55ab10f0 | 345 | const char *bfd_errmsg (bfd_error_type error_tag); |
252b5132 RH |
346 | |
347 | DESCRIPTION | |
348 | Return a string describing the error @var{error_tag}, or | |
349 | the system error if @var{error_tag} is <<bfd_error_system_call>>. | |
350 | */ | |
351 | ||
55ab10f0 | 352 | const char * |
c58b9523 | 353 | bfd_errmsg (bfd_error_type error_tag) |
252b5132 RH |
354 | { |
355 | #ifndef errno | |
356 | extern int errno; | |
357 | #endif | |
358 | if (error_tag == bfd_error_system_call) | |
359 | return xstrerror (errno); | |
360 | ||
c58b9523 AM |
361 | if (error_tag > bfd_error_invalid_error_code) |
362 | error_tag = bfd_error_invalid_error_code; /* sanity check */ | |
252b5132 | 363 | |
c58b9523 | 364 | return _(bfd_errmsgs [error_tag]); |
252b5132 RH |
365 | } |
366 | ||
367 | /* | |
368 | FUNCTION | |
369 | bfd_perror | |
370 | ||
371 | SYNOPSIS | |
55ab10f0 | 372 | void bfd_perror (const char *message); |
252b5132 RH |
373 | |
374 | DESCRIPTION | |
375 | Print to the standard error stream a string describing the | |
376 | last BFD error that occurred, or the last system error if | |
377 | the last BFD error was a system call failure. If @var{message} | |
378 | is non-NULL and non-empty, the error string printed is preceded | |
379 | by @var{message}, a colon, and a space. It is followed by a newline. | |
380 | */ | |
381 | ||
382 | void | |
c58b9523 | 383 | bfd_perror (const char *message) |
252b5132 RH |
384 | { |
385 | if (bfd_get_error () == bfd_error_system_call) | |
55ab10f0 | 386 | /* Must be a system error then. */ |
c58b9523 | 387 | perror ((char *) message); |
55ab10f0 NC |
388 | else |
389 | { | |
390 | if (message == NULL || *message == '\0') | |
391 | fprintf (stderr, "%s\n", bfd_errmsg (bfd_get_error ())); | |
392 | else | |
393 | fprintf (stderr, "%s: %s\n", message, bfd_errmsg (bfd_get_error ())); | |
394 | } | |
252b5132 RH |
395 | } |
396 | ||
397 | /* | |
398 | SUBSECTION | |
399 | BFD error handler | |
400 | ||
401 | Some BFD functions want to print messages describing the | |
402 | problem. They call a BFD error handler function. This | |
5c4491d3 | 403 | function may be overridden by the program. |
252b5132 RH |
404 | |
405 | The BFD error handler acts like printf. | |
406 | ||
407 | CODE_FRAGMENT | |
408 | . | |
c58b9523 | 409 | .typedef void (*bfd_error_handler_type) (const char *, ...); |
252b5132 RH |
410 | . |
411 | */ | |
412 | ||
413 | /* The program name used when printing BFD error messages. */ | |
414 | ||
415 | static const char *_bfd_error_program_name; | |
416 | ||
d003868e AM |
417 | /* This is the default routine to handle BFD error messages. |
418 | Like fprintf (stderr, ...), but also handles some extra format specifiers. | |
419 | ||
420 | %A section name from section. For group components, print group name too. | |
421 | %B file name from bfd. For archive components, prints archive too. | |
422 | */ | |
252b5132 | 423 | |
185d09ad | 424 | void |
d003868e | 425 | _bfd_default_error_handler (const char *fmt, ...) |
252b5132 | 426 | { |
d003868e AM |
427 | va_list ap; |
428 | char *bufp; | |
429 | const char *new_fmt, *p; | |
430 | size_t avail = 1000; | |
431 | char buf[1000]; | |
c58b9523 | 432 | |
252b5132 RH |
433 | if (_bfd_error_program_name != NULL) |
434 | fprintf (stderr, "%s: ", _bfd_error_program_name); | |
435 | else | |
436 | fprintf (stderr, "BFD: "); | |
437 | ||
d003868e AM |
438 | va_start (ap, fmt); |
439 | new_fmt = fmt; | |
440 | bufp = buf; | |
441 | ||
442 | /* Reserve enough space for the existing format string. */ | |
443 | avail -= strlen (fmt) + 1; | |
444 | if (avail > 1000) | |
3168356f | 445 | _exit (EXIT_FAILURE); |
d003868e AM |
446 | |
447 | p = fmt; | |
3e540f25 | 448 | while (1) |
d003868e AM |
449 | { |
450 | char *q; | |
451 | size_t len, extra, trim; | |
452 | ||
453 | p = strchr (p, '%'); | |
454 | if (p == NULL || p[1] == '\0') | |
455 | { | |
456 | if (new_fmt == buf) | |
457 | { | |
458 | len = strlen (fmt); | |
459 | memcpy (bufp, fmt, len + 1); | |
460 | } | |
461 | break; | |
462 | } | |
463 | ||
464 | if (p[1] == 'A' || p[1] == 'B') | |
465 | { | |
466 | len = p - fmt; | |
467 | memcpy (bufp, fmt, len); | |
468 | bufp += len; | |
469 | fmt = p + 2; | |
470 | new_fmt = buf; | |
471 | ||
472 | /* If we run out of space, tough, you lose your ridiculously | |
473 | long file or section name. It's not safe to try to alloc | |
474 | memory here; We might be printing an out of memory message. */ | |
475 | if (avail == 0) | |
476 | { | |
477 | *bufp++ = '*'; | |
478 | *bufp++ = '*'; | |
479 | *bufp = '\0'; | |
480 | } | |
481 | else | |
482 | { | |
483 | if (p[1] == 'B') | |
484 | { | |
485 | bfd *abfd = va_arg (ap, bfd *); | |
486 | if (abfd->my_archive) | |
487 | snprintf (bufp, avail, "%s(%s)", | |
488 | abfd->my_archive->filename, abfd->filename); | |
489 | else | |
490 | snprintf (bufp, avail, "%s", abfd->filename); | |
491 | } | |
492 | else | |
493 | { | |
494 | asection *sec = va_arg (ap, asection *); | |
495 | bfd *abfd = sec->owner; | |
496 | const char *group = NULL; | |
497 | struct coff_comdat_info *ci; | |
498 | ||
499 | if (abfd != NULL | |
500 | && bfd_get_flavour (abfd) == bfd_target_elf_flavour | |
501 | && elf_next_in_group (sec) != NULL | |
502 | && (sec->flags & SEC_GROUP) == 0) | |
503 | group = elf_group_name (sec); | |
504 | else if (abfd != NULL | |
505 | && bfd_get_flavour (abfd) == bfd_target_coff_flavour | |
506 | && (ci = bfd_coff_get_comdat_section (sec->owner, | |
507 | sec)) != NULL) | |
508 | group = ci->name; | |
509 | if (group != NULL) | |
510 | snprintf (bufp, avail, "%s[%s]", sec->name, group); | |
511 | else | |
512 | snprintf (bufp, avail, "%s", sec->name); | |
513 | } | |
514 | len = strlen (bufp); | |
515 | avail = avail - len + 2; | |
516 | ||
517 | /* We need to replace any '%' we printed by "%%". | |
518 | First count how many. */ | |
519 | q = bufp; | |
520 | bufp += len; | |
521 | extra = 0; | |
522 | while ((q = strchr (q, '%')) != NULL) | |
523 | { | |
524 | ++q; | |
525 | ++extra; | |
526 | } | |
527 | ||
528 | /* If there isn't room, trim off the end of the string. */ | |
529 | q = bufp; | |
530 | bufp += extra; | |
531 | if (extra > avail) | |
532 | { | |
533 | trim = extra - avail; | |
534 | bufp -= trim; | |
535 | do | |
536 | { | |
537 | if (*--q == '%') | |
538 | --extra; | |
539 | } | |
540 | while (--trim != 0); | |
541 | *q = '\0'; | |
45fc9e4a | 542 | avail = extra; |
d003868e | 543 | } |
45fc9e4a | 544 | avail -= extra; |
d003868e AM |
545 | |
546 | /* Now double all '%' chars, shuffling the string as we go. */ | |
547 | while (extra != 0) | |
548 | { | |
549 | while ((q[extra] = *q) != '%') | |
550 | --q; | |
551 | q[--extra] = '%'; | |
552 | --q; | |
553 | } | |
554 | } | |
555 | } | |
556 | p = p + 2; | |
557 | } | |
558 | ||
559 | vfprintf (stderr, new_fmt, ap); | |
560 | va_end (ap); | |
252b5132 | 561 | |
d003868e | 562 | putc ('\n', stderr); |
252b5132 RH |
563 | } |
564 | ||
252b5132 RH |
565 | /* This is a function pointer to the routine which should handle BFD |
566 | error messages. It is called when a BFD routine encounters an | |
567 | error for which it wants to print a message. Going through a | |
568 | function pointer permits a program linked against BFD to intercept | |
569 | the messages and deal with them itself. */ | |
570 | ||
571 | bfd_error_handler_type _bfd_error_handler = _bfd_default_error_handler; | |
572 | ||
573 | /* | |
574 | FUNCTION | |
575 | bfd_set_error_handler | |
576 | ||
577 | SYNOPSIS | |
578 | bfd_error_handler_type bfd_set_error_handler (bfd_error_handler_type); | |
579 | ||
580 | DESCRIPTION | |
581 | Set the BFD error handler function. Returns the previous | |
582 | function. | |
583 | */ | |
584 | ||
585 | bfd_error_handler_type | |
c58b9523 | 586 | bfd_set_error_handler (bfd_error_handler_type pnew) |
252b5132 RH |
587 | { |
588 | bfd_error_handler_type pold; | |
589 | ||
590 | pold = _bfd_error_handler; | |
591 | _bfd_error_handler = pnew; | |
592 | return pold; | |
593 | } | |
594 | ||
595 | /* | |
596 | FUNCTION | |
597 | bfd_set_error_program_name | |
598 | ||
599 | SYNOPSIS | |
600 | void bfd_set_error_program_name (const char *); | |
601 | ||
602 | DESCRIPTION | |
603 | Set the program name to use when printing a BFD error. This | |
604 | is printed before the error message followed by a colon and | |
605 | space. The string must not be changed after it is passed to | |
606 | this function. | |
607 | */ | |
608 | ||
609 | void | |
c58b9523 | 610 | bfd_set_error_program_name (const char *name) |
252b5132 RH |
611 | { |
612 | _bfd_error_program_name = name; | |
613 | } | |
614 | ||
252b5132 RH |
615 | /* |
616 | FUNCTION | |
617 | bfd_get_error_handler | |
618 | ||
619 | SYNOPSIS | |
620 | bfd_error_handler_type bfd_get_error_handler (void); | |
621 | ||
622 | DESCRIPTION | |
623 | Return the BFD error handler function. | |
624 | */ | |
625 | ||
626 | bfd_error_handler_type | |
c58b9523 | 627 | bfd_get_error_handler (void) |
252b5132 RH |
628 | { |
629 | return _bfd_error_handler; | |
630 | } | |
631 | \f | |
632 | /* | |
633 | SECTION | |
1b74d094 BW |
634 | Miscellaneous |
635 | ||
636 | SUBSECTION | |
637 | Miscellaneous functions | |
252b5132 RH |
638 | */ |
639 | ||
640 | /* | |
641 | FUNCTION | |
642 | bfd_get_reloc_upper_bound | |
643 | ||
644 | SYNOPSIS | |
ed781d5d | 645 | long bfd_get_reloc_upper_bound (bfd *abfd, asection *sect); |
252b5132 RH |
646 | |
647 | DESCRIPTION | |
648 | Return the number of bytes required to store the | |
649 | relocation information associated with section @var{sect} | |
650 | attached to bfd @var{abfd}. If an error occurs, return -1. | |
651 | ||
652 | */ | |
653 | ||
252b5132 | 654 | long |
c58b9523 | 655 | bfd_get_reloc_upper_bound (bfd *abfd, sec_ptr asect) |
252b5132 | 656 | { |
55ab10f0 NC |
657 | if (abfd->format != bfd_object) |
658 | { | |
659 | bfd_set_error (bfd_error_invalid_operation); | |
660 | return -1; | |
661 | } | |
252b5132 RH |
662 | |
663 | return BFD_SEND (abfd, _get_reloc_upper_bound, (abfd, asect)); | |
664 | } | |
665 | ||
666 | /* | |
667 | FUNCTION | |
668 | bfd_canonicalize_reloc | |
669 | ||
670 | SYNOPSIS | |
671 | long bfd_canonicalize_reloc | |
c58b9523 | 672 | (bfd *abfd, asection *sec, arelent **loc, asymbol **syms); |
252b5132 RH |
673 | |
674 | DESCRIPTION | |
675 | Call the back end associated with the open BFD | |
676 | @var{abfd} and translate the external form of the relocation | |
677 | information attached to @var{sec} into the internal canonical | |
678 | form. Place the table into memory at @var{loc}, which has | |
679 | been preallocated, usually by a call to | |
680 | <<bfd_get_reloc_upper_bound>>. Returns the number of relocs, or | |
681 | -1 on error. | |
682 | ||
683 | The @var{syms} table is also needed for horrible internal magic | |
684 | reasons. | |
685 | ||
252b5132 RH |
686 | */ |
687 | long | |
c58b9523 AM |
688 | bfd_canonicalize_reloc (bfd *abfd, |
689 | sec_ptr asect, | |
690 | arelent **location, | |
691 | asymbol **symbols) | |
252b5132 | 692 | { |
55ab10f0 NC |
693 | if (abfd->format != bfd_object) |
694 | { | |
695 | bfd_set_error (bfd_error_invalid_operation); | |
696 | return -1; | |
697 | } | |
698 | ||
252b5132 RH |
699 | return BFD_SEND (abfd, _bfd_canonicalize_reloc, |
700 | (abfd, asect, location, symbols)); | |
701 | } | |
702 | ||
703 | /* | |
704 | FUNCTION | |
705 | bfd_set_reloc | |
706 | ||
707 | SYNOPSIS | |
708 | void bfd_set_reloc | |
b5f79c76 | 709 | (bfd *abfd, asection *sec, arelent **rel, unsigned int count); |
252b5132 RH |
710 | |
711 | DESCRIPTION | |
712 | Set the relocation pointer and count within | |
713 | section @var{sec} to the values @var{rel} and @var{count}. | |
714 | The argument @var{abfd} is ignored. | |
715 | ||
716 | */ | |
aebad5fe | 717 | |
252b5132 | 718 | void |
c58b9523 AM |
719 | bfd_set_reloc (bfd *ignore_abfd ATTRIBUTE_UNUSED, |
720 | sec_ptr asect, | |
721 | arelent **location, | |
722 | unsigned int count) | |
252b5132 RH |
723 | { |
724 | asect->orelocation = location; | |
725 | asect->reloc_count = count; | |
726 | } | |
727 | ||
728 | /* | |
729 | FUNCTION | |
730 | bfd_set_file_flags | |
731 | ||
732 | SYNOPSIS | |
ed781d5d | 733 | bfd_boolean bfd_set_file_flags (bfd *abfd, flagword flags); |
252b5132 RH |
734 | |
735 | DESCRIPTION | |
736 | Set the flag word in the BFD @var{abfd} to the value @var{flags}. | |
737 | ||
738 | Possible errors are: | |
739 | o <<bfd_error_wrong_format>> - The target bfd was not of object format. | |
740 | o <<bfd_error_invalid_operation>> - The target bfd was open for reading. | |
741 | o <<bfd_error_invalid_operation>> - | |
742 | The flag word contained a bit which was not applicable to the | |
743 | type of file. E.g., an attempt was made to set the <<D_PAGED>> bit | |
744 | on a BFD format which does not support demand paging. | |
745 | ||
746 | */ | |
747 | ||
b34976b6 | 748 | bfd_boolean |
c58b9523 | 749 | bfd_set_file_flags (bfd *abfd, flagword flags) |
252b5132 | 750 | { |
55ab10f0 NC |
751 | if (abfd->format != bfd_object) |
752 | { | |
753 | bfd_set_error (bfd_error_wrong_format); | |
b34976b6 | 754 | return FALSE; |
55ab10f0 | 755 | } |
252b5132 | 756 | |
55ab10f0 NC |
757 | if (bfd_read_p (abfd)) |
758 | { | |
759 | bfd_set_error (bfd_error_invalid_operation); | |
b34976b6 | 760 | return FALSE; |
55ab10f0 | 761 | } |
252b5132 RH |
762 | |
763 | bfd_get_file_flags (abfd) = flags; | |
55ab10f0 NC |
764 | if ((flags & bfd_applicable_file_flags (abfd)) != flags) |
765 | { | |
766 | bfd_set_error (bfd_error_invalid_operation); | |
b34976b6 | 767 | return FALSE; |
55ab10f0 | 768 | } |
252b5132 | 769 | |
b34976b6 | 770 | return TRUE; |
252b5132 RH |
771 | } |
772 | ||
773 | void | |
c58b9523 | 774 | bfd_assert (const char *file, int line) |
252b5132 | 775 | { |
aec2f561 AM |
776 | (*_bfd_error_handler) (_("BFD %s assertion fail %s:%d"), |
777 | BFD_VERSION_STRING, file, line); | |
252b5132 RH |
778 | } |
779 | ||
c0bed66d ILT |
780 | /* A more or less friendly abort message. In libbfd.h abort is |
781 | defined to call this function. */ | |
782 | ||
c0bed66d | 783 | void |
c58b9523 | 784 | _bfd_abort (const char *file, int line, const char *fn) |
c0bed66d ILT |
785 | { |
786 | if (fn != NULL) | |
787 | (*_bfd_error_handler) | |
aec2f561 AM |
788 | (_("BFD %s internal error, aborting at %s line %d in %s\n"), |
789 | BFD_VERSION_STRING, file, line, fn); | |
c0bed66d ILT |
790 | else |
791 | (*_bfd_error_handler) | |
391154e9 | 792 | (_("BFD %s internal error, aborting at %s line %d\n"), |
aec2f561 | 793 | BFD_VERSION_STRING, file, line); |
c0bed66d | 794 | (*_bfd_error_handler) (_("Please report this bug.\n")); |
3168356f | 795 | _exit (EXIT_FAILURE); |
c0bed66d | 796 | } |
252b5132 | 797 | |
125c4a69 NC |
798 | /* |
799 | FUNCTION | |
800 | bfd_get_arch_size | |
801 | ||
802 | SYNOPSIS | |
803 | int bfd_get_arch_size (bfd *abfd); | |
804 | ||
805 | DESCRIPTION | |
806 | Returns the architecture address size, in bits, as determined | |
807 | by the object file's format. For ELF, this information is | |
808 | included in the header. | |
809 | ||
810 | RETURNS | |
811 | Returns the arch size in bits if known, <<-1>> otherwise. | |
812 | */ | |
813 | ||
814 | int | |
c58b9523 | 815 | bfd_get_arch_size (bfd *abfd) |
125c4a69 NC |
816 | { |
817 | if (abfd->xvec->flavour == bfd_target_elf_flavour) | |
c58b9523 | 818 | return get_elf_backend_data (abfd)->s->arch_size; |
125c4a69 | 819 | |
125c4a69 NC |
820 | return -1; |
821 | } | |
822 | ||
823 | /* | |
824 | FUNCTION | |
825 | bfd_get_sign_extend_vma | |
826 | ||
827 | SYNOPSIS | |
828 | int bfd_get_sign_extend_vma (bfd *abfd); | |
829 | ||
830 | DESCRIPTION | |
831 | Indicates if the target architecture "naturally" sign extends | |
832 | an address. Some architectures implicitly sign extend address | |
833 | values when they are converted to types larger than the size | |
834 | of an address. For instance, bfd_get_start_address() will | |
835 | return an address sign extended to fill a bfd_vma when this is | |
836 | the case. | |
837 | ||
838 | RETURNS | |
839 | Returns <<1>> if the target architecture is known to sign | |
840 | extend addresses, <<0>> if the target architecture is known to | |
841 | not sign extend addresses, and <<-1>> otherwise. | |
842 | */ | |
843 | ||
844 | int | |
c58b9523 | 845 | bfd_get_sign_extend_vma (bfd *abfd) |
125c4a69 | 846 | { |
f47e5071 NC |
847 | char *name; |
848 | ||
125c4a69 | 849 | if (bfd_get_flavour (abfd) == bfd_target_elf_flavour) |
c58b9523 | 850 | return get_elf_backend_data (abfd)->sign_extend_vma; |
125c4a69 | 851 | |
f47e5071 NC |
852 | name = bfd_get_target (abfd); |
853 | ||
8a7140c3 | 854 | /* Return a proper value for DJGPP & PE COFF (x86 COFF variants). |
f47e5071 NC |
855 | This function is required for DWARF2 support, but there is |
856 | no place to store this information in the COFF back end. | |
857 | Should enough other COFF targets add support for DWARF2, | |
858 | a place will have to be found. Until then, this hack will do. */ | |
8a7140c3 NC |
859 | if (strncmp (name, "coff-go32", sizeof ("coff-go32") - 1) == 0 |
860 | || strcmp (name, "pe-i386") == 0 | |
861 | || strcmp (name, "pei-i386") == 0) | |
f47e5071 NC |
862 | return 1; |
863 | ||
a022216b | 864 | bfd_set_error (bfd_error_wrong_format); |
125c4a69 NC |
865 | return -1; |
866 | } | |
867 | ||
252b5132 RH |
868 | /* |
869 | FUNCTION | |
870 | bfd_set_start_address | |
871 | ||
872 | SYNOPSIS | |
ed781d5d | 873 | bfd_boolean bfd_set_start_address (bfd *abfd, bfd_vma vma); |
252b5132 RH |
874 | |
875 | DESCRIPTION | |
876 | Make @var{vma} the entry point of output BFD @var{abfd}. | |
877 | ||
878 | RETURNS | |
b34976b6 | 879 | Returns <<TRUE>> on success, <<FALSE>> otherwise. |
252b5132 RH |
880 | */ |
881 | ||
b34976b6 | 882 | bfd_boolean |
c58b9523 | 883 | bfd_set_start_address (bfd *abfd, bfd_vma vma) |
252b5132 RH |
884 | { |
885 | abfd->start_address = vma; | |
b34976b6 | 886 | return TRUE; |
252b5132 RH |
887 | } |
888 | ||
252b5132 RH |
889 | /* |
890 | FUNCTION | |
891 | bfd_get_gp_size | |
892 | ||
893 | SYNOPSIS | |
ed781d5d | 894 | unsigned int bfd_get_gp_size (bfd *abfd); |
252b5132 RH |
895 | |
896 | DESCRIPTION | |
897 | Return the maximum size of objects to be optimized using the GP | |
898 | register under MIPS ECOFF. This is typically set by the <<-G>> | |
899 | argument to the compiler, assembler or linker. | |
900 | */ | |
901 | ||
c0846b23 | 902 | unsigned int |
c58b9523 | 903 | bfd_get_gp_size (bfd *abfd) |
252b5132 RH |
904 | { |
905 | if (abfd->format == bfd_object) | |
906 | { | |
907 | if (abfd->xvec->flavour == bfd_target_ecoff_flavour) | |
908 | return ecoff_data (abfd)->gp_size; | |
909 | else if (abfd->xvec->flavour == bfd_target_elf_flavour) | |
910 | return elf_gp_size (abfd); | |
911 | } | |
912 | return 0; | |
913 | } | |
914 | ||
915 | /* | |
916 | FUNCTION | |
917 | bfd_set_gp_size | |
918 | ||
919 | SYNOPSIS | |
ed781d5d | 920 | void bfd_set_gp_size (bfd *abfd, unsigned int i); |
252b5132 RH |
921 | |
922 | DESCRIPTION | |
923 | Set the maximum size of objects to be optimized using the GP | |
924 | register under ECOFF or MIPS ELF. This is typically set by | |
925 | the <<-G>> argument to the compiler, assembler or linker. | |
926 | */ | |
927 | ||
928 | void | |
c58b9523 | 929 | bfd_set_gp_size (bfd *abfd, unsigned int i) |
252b5132 | 930 | { |
55ab10f0 | 931 | /* Don't try to set GP size on an archive or core file! */ |
252b5132 RH |
932 | if (abfd->format != bfd_object) |
933 | return; | |
55ab10f0 | 934 | |
252b5132 RH |
935 | if (abfd->xvec->flavour == bfd_target_ecoff_flavour) |
936 | ecoff_data (abfd)->gp_size = i; | |
937 | else if (abfd->xvec->flavour == bfd_target_elf_flavour) | |
938 | elf_gp_size (abfd) = i; | |
939 | } | |
940 | ||
941 | /* Get the GP value. This is an internal function used by some of the | |
942 | relocation special_function routines on targets which support a GP | |
943 | register. */ | |
944 | ||
945 | bfd_vma | |
c58b9523 | 946 | _bfd_get_gp_value (bfd *abfd) |
252b5132 | 947 | { |
9bcf4de0 TS |
948 | if (! abfd) |
949 | return 0; | |
55ab10f0 NC |
950 | if (abfd->format != bfd_object) |
951 | return 0; | |
952 | ||
953 | if (abfd->xvec->flavour == bfd_target_ecoff_flavour) | |
954 | return ecoff_data (abfd)->gp; | |
955 | else if (abfd->xvec->flavour == bfd_target_elf_flavour) | |
956 | return elf_gp (abfd); | |
957 | ||
252b5132 RH |
958 | return 0; |
959 | } | |
960 | ||
961 | /* Set the GP value. */ | |
962 | ||
963 | void | |
c58b9523 | 964 | _bfd_set_gp_value (bfd *abfd, bfd_vma v) |
252b5132 | 965 | { |
9bcf4de0 TS |
966 | if (! abfd) |
967 | BFD_FAIL (); | |
252b5132 RH |
968 | if (abfd->format != bfd_object) |
969 | return; | |
55ab10f0 | 970 | |
252b5132 RH |
971 | if (abfd->xvec->flavour == bfd_target_ecoff_flavour) |
972 | ecoff_data (abfd)->gp = v; | |
973 | else if (abfd->xvec->flavour == bfd_target_elf_flavour) | |
974 | elf_gp (abfd) = v; | |
975 | } | |
976 | ||
977 | /* | |
978 | FUNCTION | |
979 | bfd_scan_vma | |
980 | ||
981 | SYNOPSIS | |
ed781d5d | 982 | bfd_vma bfd_scan_vma (const char *string, const char **end, int base); |
252b5132 RH |
983 | |
984 | DESCRIPTION | |
985 | Convert, like <<strtoul>>, a numerical expression | |
986 | @var{string} into a <<bfd_vma>> integer, and return that integer. | |
987 | (Though without as many bells and whistles as <<strtoul>>.) | |
988 | The expression is assumed to be unsigned (i.e., positive). | |
989 | If given a @var{base}, it is used as the base for conversion. | |
990 | A base of 0 causes the function to interpret the string | |
991 | in hex if a leading "0x" or "0X" is found, otherwise | |
992 | in octal if a leading zero is found, otherwise in decimal. | |
993 | ||
88eaccc2 AM |
994 | If the value would overflow, the maximum <<bfd_vma>> value is |
995 | returned. | |
252b5132 RH |
996 | */ |
997 | ||
998 | bfd_vma | |
c58b9523 | 999 | bfd_scan_vma (const char *string, const char **end, int base) |
252b5132 RH |
1000 | { |
1001 | bfd_vma value; | |
88eaccc2 AM |
1002 | bfd_vma cutoff; |
1003 | unsigned int cutlim; | |
1004 | int overflow; | |
252b5132 RH |
1005 | |
1006 | /* Let the host do it if possible. */ | |
eb6e10cb | 1007 | if (sizeof (bfd_vma) <= sizeof (unsigned long)) |
c58b9523 | 1008 | return strtoul (string, (char **) end, base); |
252b5132 | 1009 | |
49c97a80 ILT |
1010 | #ifdef HAVE_STRTOULL |
1011 | if (sizeof (bfd_vma) <= sizeof (unsigned long long)) | |
1012 | return strtoull (string, (char **) end, base); | |
1013 | #endif | |
1014 | ||
252b5132 RH |
1015 | if (base == 0) |
1016 | { | |
1017 | if (string[0] == '0') | |
1018 | { | |
1019 | if ((string[1] == 'x') || (string[1] == 'X')) | |
1020 | base = 16; | |
252b5132 RH |
1021 | else |
1022 | base = 8; | |
1023 | } | |
252b5132 | 1024 | } |
55ab10f0 | 1025 | |
88eaccc2 AM |
1026 | if ((base < 2) || (base > 36)) |
1027 | base = 10; | |
1028 | ||
1029 | if (base == 16 | |
1030 | && string[0] == '0' | |
1031 | && (string[1] == 'x' || string[1] == 'X') | |
1032 | && ISXDIGIT (string[2])) | |
1033 | { | |
1034 | string += 2; | |
1035 | } | |
aebad5fe | 1036 | |
88eaccc2 AM |
1037 | cutoff = (~ (bfd_vma) 0) / (bfd_vma) base; |
1038 | cutlim = (~ (bfd_vma) 0) % (bfd_vma) base; | |
1039 | value = 0; | |
1040 | overflow = 0; | |
1041 | while (1) | |
1042 | { | |
1043 | unsigned int digit; | |
1044 | ||
1045 | digit = *string; | |
1046 | if (ISDIGIT (digit)) | |
1047 | digit = digit - '0'; | |
1048 | else if (ISALPHA (digit)) | |
1049 | digit = TOUPPER (digit) - 'A' + 10; | |
1050 | else | |
1051 | break; | |
1052 | if (digit >= (unsigned int) base) | |
1053 | break; | |
1054 | if (value > cutoff || (value == cutoff && digit > cutlim)) | |
1055 | overflow = 1; | |
1056 | value = value * base + digit; | |
1057 | ++string; | |
1058 | } | |
252b5132 | 1059 | |
88eaccc2 AM |
1060 | if (overflow) |
1061 | value = ~ (bfd_vma) 0; | |
252b5132 | 1062 | |
88eaccc2 AM |
1063 | if (end != NULL) |
1064 | *end = string; | |
252b5132 RH |
1065 | |
1066 | return value; | |
1067 | } | |
1068 | ||
80fccad2 BW |
1069 | /* |
1070 | FUNCTION | |
1071 | bfd_copy_private_header_data | |
1072 | ||
1073 | SYNOPSIS | |
1074 | bfd_boolean bfd_copy_private_header_data (bfd *ibfd, bfd *obfd); | |
1075 | ||
1076 | DESCRIPTION | |
1077 | Copy private BFD header information from the BFD @var{ibfd} to the | |
1078 | the BFD @var{obfd}. This copies information that may require | |
1079 | sections to exist, but does not require symbol tables. Return | |
1080 | <<true>> on success, <<false>> on error. | |
1081 | Possible error returns are: | |
1082 | ||
1083 | o <<bfd_error_no_memory>> - | |
1084 | Not enough memory exists to create private data for @var{obfd}. | |
1085 | ||
1086 | .#define bfd_copy_private_header_data(ibfd, obfd) \ | |
1087 | . BFD_SEND (obfd, _bfd_copy_private_header_data, \ | |
1088 | . (ibfd, obfd)) | |
1089 | ||
1090 | */ | |
1091 | ||
252b5132 RH |
1092 | /* |
1093 | FUNCTION | |
1094 | bfd_copy_private_bfd_data | |
1095 | ||
1096 | SYNOPSIS | |
ed781d5d | 1097 | bfd_boolean bfd_copy_private_bfd_data (bfd *ibfd, bfd *obfd); |
252b5132 RH |
1098 | |
1099 | DESCRIPTION | |
aebad5fe | 1100 | Copy private BFD information from the BFD @var{ibfd} to the |
b34976b6 | 1101 | the BFD @var{obfd}. Return <<TRUE>> on success, <<FALSE>> on error. |
252b5132 RH |
1102 | Possible error returns are: |
1103 | ||
1104 | o <<bfd_error_no_memory>> - | |
1105 | Not enough memory exists to create private data for @var{obfd}. | |
1106 | ||
1107 | .#define bfd_copy_private_bfd_data(ibfd, obfd) \ | |
1108 | . BFD_SEND (obfd, _bfd_copy_private_bfd_data, \ | |
1109 | . (ibfd, obfd)) | |
1110 | ||
1111 | */ | |
1112 | ||
1113 | /* | |
1114 | FUNCTION | |
1115 | bfd_merge_private_bfd_data | |
1116 | ||
1117 | SYNOPSIS | |
ed781d5d | 1118 | bfd_boolean bfd_merge_private_bfd_data (bfd *ibfd, bfd *obfd); |
252b5132 RH |
1119 | |
1120 | DESCRIPTION | |
aebad5fe | 1121 | Merge private BFD information from the BFD @var{ibfd} to the |
b34976b6 AM |
1122 | the output file BFD @var{obfd} when linking. Return <<TRUE>> |
1123 | on success, <<FALSE>> on error. Possible error returns are: | |
252b5132 RH |
1124 | |
1125 | o <<bfd_error_no_memory>> - | |
1126 | Not enough memory exists to create private data for @var{obfd}. | |
1127 | ||
1128 | .#define bfd_merge_private_bfd_data(ibfd, obfd) \ | |
1129 | . BFD_SEND (obfd, _bfd_merge_private_bfd_data, \ | |
1130 | . (ibfd, obfd)) | |
1131 | ||
1132 | */ | |
1133 | ||
1134 | /* | |
1135 | FUNCTION | |
1136 | bfd_set_private_flags | |
1137 | ||
1138 | SYNOPSIS | |
ed781d5d | 1139 | bfd_boolean bfd_set_private_flags (bfd *abfd, flagword flags); |
252b5132 RH |
1140 | |
1141 | DESCRIPTION | |
1142 | Set private BFD flag information in the BFD @var{abfd}. | |
b34976b6 | 1143 | Return <<TRUE>> on success, <<FALSE>> on error. Possible error |
252b5132 RH |
1144 | returns are: |
1145 | ||
1146 | o <<bfd_error_no_memory>> - | |
1147 | Not enough memory exists to create private data for @var{obfd}. | |
1148 | ||
1149 | .#define bfd_set_private_flags(abfd, flags) \ | |
ed781d5d | 1150 | . BFD_SEND (abfd, _bfd_set_private_flags, (abfd, flags)) |
252b5132 RH |
1151 | |
1152 | */ | |
1153 | ||
1154 | /* | |
1155 | FUNCTION | |
ed781d5d | 1156 | Other functions |
252b5132 RH |
1157 | |
1158 | DESCRIPTION | |
ed781d5d | 1159 | The following functions exist but have not yet been documented. |
252b5132 RH |
1160 | |
1161 | .#define bfd_sizeof_headers(abfd, reloc) \ | |
ed781d5d | 1162 | . BFD_SEND (abfd, _bfd_sizeof_headers, (abfd, reloc)) |
252b5132 RH |
1163 | . |
1164 | .#define bfd_find_nearest_line(abfd, sec, syms, off, file, func, line) \ | |
ed781d5d NC |
1165 | . BFD_SEND (abfd, _bfd_find_nearest_line, \ |
1166 | . (abfd, sec, syms, off, file, func, line)) | |
252b5132 | 1167 | . |
5420f73d L |
1168 | .#define bfd_find_line(abfd, syms, sym, file, line) \ |
1169 | . BFD_SEND (abfd, _bfd_find_line, \ | |
1170 | . (abfd, syms, sym, file, line)) | |
1171 | . | |
4ab527b0 FF |
1172 | .#define bfd_find_inliner_info(abfd, file, func, line) \ |
1173 | . BFD_SEND (abfd, _bfd_find_inliner_info, \ | |
1174 | . (abfd, file, func, line)) | |
1175 | . | |
252b5132 | 1176 | .#define bfd_debug_info_start(abfd) \ |
ed781d5d | 1177 | . BFD_SEND (abfd, _bfd_debug_info_start, (abfd)) |
252b5132 RH |
1178 | . |
1179 | .#define bfd_debug_info_end(abfd) \ | |
ed781d5d | 1180 | . BFD_SEND (abfd, _bfd_debug_info_end, (abfd)) |
252b5132 RH |
1181 | . |
1182 | .#define bfd_debug_info_accumulate(abfd, section) \ | |
ed781d5d | 1183 | . BFD_SEND (abfd, _bfd_debug_info_accumulate, (abfd, section)) |
252b5132 RH |
1184 | . |
1185 | .#define bfd_stat_arch_elt(abfd, stat) \ | |
ed781d5d | 1186 | . BFD_SEND (abfd, _bfd_stat_arch_elt,(abfd, stat)) |
252b5132 RH |
1187 | . |
1188 | .#define bfd_update_armap_timestamp(abfd) \ | |
ed781d5d | 1189 | . BFD_SEND (abfd, _bfd_update_armap_timestamp, (abfd)) |
252b5132 RH |
1190 | . |
1191 | .#define bfd_set_arch_mach(abfd, arch, mach)\ | |
ed781d5d | 1192 | . BFD_SEND ( abfd, _bfd_set_arch_mach, (abfd, arch, mach)) |
252b5132 RH |
1193 | . |
1194 | .#define bfd_relax_section(abfd, section, link_info, again) \ | |
1195 | . BFD_SEND (abfd, _bfd_relax_section, (abfd, section, link_info, again)) | |
1196 | . | |
1197 | .#define bfd_gc_sections(abfd, link_info) \ | |
1198 | . BFD_SEND (abfd, _bfd_gc_sections, (abfd, link_info)) | |
8550eb6e JJ |
1199 | . |
1200 | .#define bfd_merge_sections(abfd, link_info) \ | |
1201 | . BFD_SEND (abfd, _bfd_merge_sections, (abfd, link_info)) | |
252b5132 | 1202 | . |
72adc230 AM |
1203 | .#define bfd_is_group_section(abfd, sec) \ |
1204 | . BFD_SEND (abfd, _bfd_is_group_section, (abfd, sec)) | |
1205 | . | |
e61463e1 AM |
1206 | .#define bfd_discard_group(abfd, sec) \ |
1207 | . BFD_SEND (abfd, _bfd_discard_group, (abfd, sec)) | |
1208 | . | |
252b5132 RH |
1209 | .#define bfd_link_hash_table_create(abfd) \ |
1210 | . BFD_SEND (abfd, _bfd_link_hash_table_create, (abfd)) | |
1211 | . | |
e2d34d7d DJ |
1212 | .#define bfd_link_hash_table_free(abfd, hash) \ |
1213 | . BFD_SEND (abfd, _bfd_link_hash_table_free, (hash)) | |
1214 | . | |
252b5132 RH |
1215 | .#define bfd_link_add_symbols(abfd, info) \ |
1216 | . BFD_SEND (abfd, _bfd_link_add_symbols, (abfd, info)) | |
1217 | . | |
1449d79b | 1218 | .#define bfd_link_just_syms(abfd, sec, info) \ |
2d653fc7 AM |
1219 | . BFD_SEND (abfd, _bfd_link_just_syms, (sec, info)) |
1220 | . | |
252b5132 RH |
1221 | .#define bfd_final_link(abfd, info) \ |
1222 | . BFD_SEND (abfd, _bfd_final_link, (abfd, info)) | |
1223 | . | |
1224 | .#define bfd_free_cached_info(abfd) \ | |
1225 | . BFD_SEND (abfd, _bfd_free_cached_info, (abfd)) | |
1226 | . | |
1227 | .#define bfd_get_dynamic_symtab_upper_bound(abfd) \ | |
1228 | . BFD_SEND (abfd, _bfd_get_dynamic_symtab_upper_bound, (abfd)) | |
1229 | . | |
1230 | .#define bfd_print_private_bfd_data(abfd, file)\ | |
1231 | . BFD_SEND (abfd, _bfd_print_private_bfd_data, (abfd, file)) | |
1232 | . | |
1233 | .#define bfd_canonicalize_dynamic_symtab(abfd, asymbols) \ | |
1234 | . BFD_SEND (abfd, _bfd_canonicalize_dynamic_symtab, (abfd, asymbols)) | |
1235 | . | |
c9727e01 AM |
1236 | .#define bfd_get_synthetic_symtab(abfd, count, syms, dyncount, dynsyms, ret) \ |
1237 | . BFD_SEND (abfd, _bfd_get_synthetic_symtab, (abfd, count, syms, \ | |
1238 | . dyncount, dynsyms, ret)) | |
4c45e5c9 | 1239 | . |
252b5132 RH |
1240 | .#define bfd_get_dynamic_reloc_upper_bound(abfd) \ |
1241 | . BFD_SEND (abfd, _bfd_get_dynamic_reloc_upper_bound, (abfd)) | |
1242 | . | |
1243 | .#define bfd_canonicalize_dynamic_reloc(abfd, arels, asyms) \ | |
1244 | . BFD_SEND (abfd, _bfd_canonicalize_dynamic_reloc, (abfd, arels, asyms)) | |
1245 | . | |
1246 | .extern bfd_byte *bfd_get_relocated_section_contents | |
c58b9523 AM |
1247 | . (bfd *, struct bfd_link_info *, struct bfd_link_order *, bfd_byte *, |
1248 | . bfd_boolean, asymbol **); | |
252b5132 RH |
1249 | . |
1250 | ||
1251 | */ | |
1252 | ||
1253 | bfd_byte * | |
c58b9523 AM |
1254 | bfd_get_relocated_section_contents (bfd *abfd, |
1255 | struct bfd_link_info *link_info, | |
1256 | struct bfd_link_order *link_order, | |
1257 | bfd_byte *data, | |
1258 | bfd_boolean relocatable, | |
1259 | asymbol **symbols) | |
252b5132 RH |
1260 | { |
1261 | bfd *abfd2; | |
c58b9523 AM |
1262 | bfd_byte *(*fn) (bfd *, struct bfd_link_info *, struct bfd_link_order *, |
1263 | bfd_byte *, bfd_boolean, asymbol **); | |
252b5132 RH |
1264 | |
1265 | if (link_order->type == bfd_indirect_link_order) | |
1266 | { | |
1267 | abfd2 = link_order->u.indirect.section->owner; | |
55ab10f0 | 1268 | if (abfd2 == NULL) |
252b5132 RH |
1269 | abfd2 = abfd; |
1270 | } | |
1271 | else | |
1272 | abfd2 = abfd; | |
55ab10f0 | 1273 | |
252b5132 RH |
1274 | fn = abfd2->xvec->_bfd_get_relocated_section_contents; |
1275 | ||
1049f94e | 1276 | return (*fn) (abfd, link_info, link_order, data, relocatable, symbols); |
252b5132 RH |
1277 | } |
1278 | ||
1279 | /* Record information about an ELF program header. */ | |
1280 | ||
b34976b6 | 1281 | bfd_boolean |
c58b9523 AM |
1282 | bfd_record_phdr (bfd *abfd, |
1283 | unsigned long type, | |
1284 | bfd_boolean flags_valid, | |
1285 | flagword flags, | |
1286 | bfd_boolean at_valid, | |
1287 | bfd_vma at, | |
1288 | bfd_boolean includes_filehdr, | |
1289 | bfd_boolean includes_phdrs, | |
1290 | unsigned int count, | |
1291 | asection **secs) | |
252b5132 RH |
1292 | { |
1293 | struct elf_segment_map *m, **pm; | |
dc810e39 | 1294 | bfd_size_type amt; |
252b5132 RH |
1295 | |
1296 | if (bfd_get_flavour (abfd) != bfd_target_elf_flavour) | |
b34976b6 | 1297 | return TRUE; |
252b5132 | 1298 | |
dc810e39 AM |
1299 | amt = sizeof (struct elf_segment_map); |
1300 | amt += ((bfd_size_type) count - 1) * sizeof (asection *); | |
c58b9523 | 1301 | m = bfd_alloc (abfd, amt); |
252b5132 | 1302 | if (m == NULL) |
b34976b6 | 1303 | return FALSE; |
252b5132 RH |
1304 | |
1305 | m->next = NULL; | |
1306 | m->p_type = type; | |
1307 | m->p_flags = flags; | |
1308 | m->p_paddr = at; | |
c58b9523 AM |
1309 | m->p_flags_valid = flags_valid; |
1310 | m->p_paddr_valid = at_valid; | |
1311 | m->includes_filehdr = includes_filehdr; | |
1312 | m->includes_phdrs = includes_phdrs; | |
252b5132 RH |
1313 | m->count = count; |
1314 | if (count > 0) | |
1315 | memcpy (m->sections, secs, count * sizeof (asection *)); | |
1316 | ||
1317 | for (pm = &elf_tdata (abfd)->segment_map; *pm != NULL; pm = &(*pm)->next) | |
1318 | ; | |
1319 | *pm = m; | |
1320 | ||
b34976b6 | 1321 | return TRUE; |
252b5132 | 1322 | } |
ae4221d7 L |
1323 | |
1324 | void | |
c58b9523 | 1325 | bfd_sprintf_vma (bfd *abfd, char *buf, bfd_vma value) |
ae4221d7 L |
1326 | { |
1327 | if (bfd_get_flavour (abfd) == bfd_target_elf_flavour) | |
4e771d61 | 1328 | get_elf_backend_data (abfd)->elf_backend_sprintf_vma (abfd, buf, value); |
ef071f24 L |
1329 | else |
1330 | sprintf_vma (buf, value); | |
ae4221d7 L |
1331 | } |
1332 | ||
1333 | void | |
c58b9523 | 1334 | bfd_fprintf_vma (bfd *abfd, void *stream, bfd_vma value) |
ae4221d7 L |
1335 | { |
1336 | if (bfd_get_flavour (abfd) == bfd_target_elf_flavour) | |
4e771d61 | 1337 | get_elf_backend_data (abfd)->elf_backend_fprintf_vma (abfd, stream, value); |
ef071f24 L |
1338 | else |
1339 | fprintf_vma ((FILE *) stream, value); | |
ae4221d7 | 1340 | } |
8c98ec7d AO |
1341 | |
1342 | /* | |
1343 | FUNCTION | |
1344 | bfd_alt_mach_code | |
1345 | ||
1346 | SYNOPSIS | |
ed781d5d | 1347 | bfd_boolean bfd_alt_mach_code (bfd *abfd, int alternative); |
8c98ec7d AO |
1348 | |
1349 | DESCRIPTION | |
1350 | ||
1351 | When more than one machine code number is available for the | |
1352 | same machine type, this function can be used to switch between | |
47badb7b | 1353 | the preferred one (alternative == 0) and any others. Currently, |
8c98ec7d AO |
1354 | only ELF supports this feature, with up to two alternate |
1355 | machine codes. | |
1356 | */ | |
1357 | ||
b34976b6 | 1358 | bfd_boolean |
c58b9523 | 1359 | bfd_alt_mach_code (bfd *abfd, int alternative) |
8c98ec7d AO |
1360 | { |
1361 | if (bfd_get_flavour (abfd) == bfd_target_elf_flavour) | |
1362 | { | |
1363 | int code; | |
1364 | ||
47badb7b | 1365 | switch (alternative) |
8c98ec7d AO |
1366 | { |
1367 | case 0: | |
1368 | code = get_elf_backend_data (abfd)->elf_machine_code; | |
1369 | break; | |
1370 | ||
1371 | case 1: | |
1372 | code = get_elf_backend_data (abfd)->elf_machine_alt1; | |
1373 | if (code == 0) | |
b34976b6 | 1374 | return FALSE; |
8c98ec7d AO |
1375 | break; |
1376 | ||
1377 | case 2: | |
1378 | code = get_elf_backend_data (abfd)->elf_machine_alt2; | |
1379 | if (code == 0) | |
b34976b6 | 1380 | return FALSE; |
8c98ec7d AO |
1381 | break; |
1382 | ||
1383 | default: | |
b34976b6 | 1384 | return FALSE; |
8c98ec7d AO |
1385 | } |
1386 | ||
1387 | elf_elfheader (abfd)->e_machine = code; | |
1388 | ||
b34976b6 | 1389 | return TRUE; |
8c98ec7d AO |
1390 | } |
1391 | ||
b34976b6 | 1392 | return FALSE; |
8c98ec7d | 1393 | } |
e84d6fca AM |
1394 | |
1395 | /* | |
1396 | CODE_FRAGMENT | |
1397 | ||
1398 | .struct bfd_preserve | |
1399 | .{ | |
c58b9523 AM |
1400 | . void *marker; |
1401 | . void *tdata; | |
e84d6fca AM |
1402 | . flagword flags; |
1403 | . const struct bfd_arch_info *arch_info; | |
198beae2 | 1404 | . struct bfd_section *sections; |
5daa8fe7 | 1405 | . struct bfd_section *section_last; |
e84d6fca AM |
1406 | . unsigned int section_count; |
1407 | . struct bfd_hash_table section_htab; | |
1408 | .}; | |
1409 | . | |
1410 | */ | |
1411 | ||
1412 | /* | |
1413 | FUNCTION | |
1414 | bfd_preserve_save | |
1415 | ||
1416 | SYNOPSIS | |
b34976b6 | 1417 | bfd_boolean bfd_preserve_save (bfd *, struct bfd_preserve *); |
e84d6fca AM |
1418 | |
1419 | DESCRIPTION | |
1420 | When testing an object for compatibility with a particular | |
1421 | target back-end, the back-end object_p function needs to set | |
1422 | up certain fields in the bfd on successfully recognizing the | |
1423 | object. This typically happens in a piecemeal fashion, with | |
1424 | failures possible at many points. On failure, the bfd is | |
1425 | supposed to be restored to its initial state, which is | |
1426 | virtually impossible. However, restoring a subset of the bfd | |
1427 | state works in practice. This function stores the subset and | |
1428 | reinitializes the bfd. | |
1429 | ||
1430 | */ | |
1431 | ||
b34976b6 | 1432 | bfd_boolean |
c58b9523 | 1433 | bfd_preserve_save (bfd *abfd, struct bfd_preserve *preserve) |
e84d6fca AM |
1434 | { |
1435 | preserve->tdata = abfd->tdata.any; | |
1436 | preserve->arch_info = abfd->arch_info; | |
1437 | preserve->flags = abfd->flags; | |
e84d6fca | 1438 | preserve->sections = abfd->sections; |
5daa8fe7 | 1439 | preserve->section_last = abfd->section_last; |
e84d6fca AM |
1440 | preserve->section_count = abfd->section_count; |
1441 | preserve->section_htab = abfd->section_htab; | |
1442 | ||
1443 | if (! bfd_hash_table_init (&abfd->section_htab, bfd_section_hash_newfunc)) | |
b34976b6 | 1444 | return FALSE; |
e84d6fca AM |
1445 | |
1446 | abfd->tdata.any = NULL; | |
1447 | abfd->arch_info = &bfd_default_arch_struct; | |
3ae41454 | 1448 | abfd->flags &= BFD_IN_MEMORY; |
e84d6fca | 1449 | abfd->sections = NULL; |
5daa8fe7 | 1450 | abfd->section_last = NULL; |
e84d6fca AM |
1451 | abfd->section_count = 0; |
1452 | ||
b34976b6 | 1453 | return TRUE; |
e84d6fca AM |
1454 | } |
1455 | ||
1456 | /* | |
1457 | FUNCTION | |
1458 | bfd_preserve_restore | |
1459 | ||
1460 | SYNOPSIS | |
1461 | void bfd_preserve_restore (bfd *, struct bfd_preserve *); | |
1462 | ||
1463 | DESCRIPTION | |
1464 | This function restores bfd state saved by bfd_preserve_save. | |
1465 | If MARKER is non-NULL in struct bfd_preserve then that block | |
1466 | and all subsequently bfd_alloc'd memory is freed. | |
1467 | ||
1468 | */ | |
1469 | ||
1470 | void | |
c58b9523 | 1471 | bfd_preserve_restore (bfd *abfd, struct bfd_preserve *preserve) |
e84d6fca AM |
1472 | { |
1473 | bfd_hash_table_free (&abfd->section_htab); | |
1474 | ||
1475 | abfd->tdata.any = preserve->tdata; | |
1476 | abfd->arch_info = preserve->arch_info; | |
1477 | abfd->flags = preserve->flags; | |
e84d6fca AM |
1478 | abfd->section_htab = preserve->section_htab; |
1479 | abfd->sections = preserve->sections; | |
5daa8fe7 | 1480 | abfd->section_last = preserve->section_last; |
e84d6fca AM |
1481 | abfd->section_count = preserve->section_count; |
1482 | ||
1483 | /* bfd_release frees all memory more recently bfd_alloc'd than | |
1484 | its arg, as well as its arg. */ | |
1485 | if (preserve->marker != NULL) | |
1486 | { | |
1487 | bfd_release (abfd, preserve->marker); | |
1488 | preserve->marker = NULL; | |
1489 | } | |
1490 | } | |
1491 | ||
1492 | /* | |
1493 | FUNCTION | |
1494 | bfd_preserve_finish | |
1495 | ||
1496 | SYNOPSIS | |
1497 | void bfd_preserve_finish (bfd *, struct bfd_preserve *); | |
1498 | ||
1499 | DESCRIPTION | |
1500 | This function should be called when the bfd state saved by | |
1501 | bfd_preserve_save is no longer needed. ie. when the back-end | |
1502 | object_p function returns with success. | |
1503 | ||
1504 | */ | |
1505 | ||
1506 | void | |
c58b9523 | 1507 | bfd_preserve_finish (bfd *abfd ATTRIBUTE_UNUSED, struct bfd_preserve *preserve) |
e84d6fca AM |
1508 | { |
1509 | /* It would be nice to be able to free more memory here, eg. old | |
1510 | tdata, but that's not possible since these blocks are sitting | |
1511 | inside bfd_alloc'd memory. The section hash is on a separate | |
1512 | objalloc. */ | |
1513 | bfd_hash_table_free (&preserve->section_htab); | |
1514 | } |