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, |
b5f79c76 | 3 | 2000, 2001, 2002 |
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 | |
21 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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 | . | |
aebad5fe | 37 | .struct _bfd |
252b5132 | 38 | .{ |
b5f79c76 NC |
39 | . {* The filename the application opened the BFD with. *} |
40 | . const char *filename; | |
252b5132 | 41 | . |
b5f79c76 NC |
42 | . {* A pointer to the target jump table. *} |
43 | . const struct bfd_target *xvec; | |
252b5132 | 44 | . |
b5f79c76 NC |
45 | . {* To avoid dragging too many header files into every file that |
46 | . includes `<<bfd.h>>', IOSTREAM has been declared as a "char *", | |
47 | . and MTIME as a "long". Their correct types, to which they | |
48 | . are cast when used, are "FILE *" and "time_t". The iostream | |
49 | . is the result of an fopen on the filename. However, if the | |
50 | . BFD_IN_MEMORY flag is set, then iostream is actually a pointer | |
51 | . to a bfd_in_memory struct. *} | |
52 | . PTR iostream; | |
53 | . | |
54 | . {* Is the file descriptor being cached? That is, can it be closed as | |
55 | . needed, and re-opened when accessed later? *} | |
b34976b6 | 56 | . bfd_boolean cacheable; |
b5f79c76 NC |
57 | . |
58 | . {* Marks whether there was a default target specified when the | |
59 | . BFD was opened. This is used to select which matching algorithm | |
60 | . to use to choose the back end. *} | |
b34976b6 | 61 | . bfd_boolean target_defaulted; |
b5f79c76 NC |
62 | . |
63 | . {* The caching routines use these to maintain a | |
64 | . least-recently-used list of BFDs. *} | |
65 | . struct _bfd *lru_prev, *lru_next; | |
66 | . | |
67 | . {* When a file is closed by the caching routines, BFD retains | |
68 | . state information on the file here... *} | |
69 | . ufile_ptr where; | |
70 | . | |
71 | . {* ... and here: (``once'' means at least once). *} | |
b34976b6 | 72 | . bfd_boolean opened_once; |
b5f79c76 NC |
73 | . |
74 | . {* Set if we have a locally maintained mtime value, rather than | |
75 | . getting it from the file each time. *} | |
b34976b6 | 76 | . bfd_boolean mtime_set; |
b5f79c76 | 77 | . |
b34976b6 | 78 | . {* File modified time, if mtime_set is TRUE. *} |
b5f79c76 NC |
79 | . long mtime; |
80 | . | |
81 | . {* Reserved for an unimplemented file locking extension. *} | |
82 | . int ifd; | |
83 | . | |
84 | . {* The format which belongs to the BFD. (object, core, etc.) *} | |
85 | . bfd_format format; | |
86 | . | |
87 | . {* The direction with which the BFD was opened. *} | |
88 | . enum bfd_direction | |
89 | . { | |
90 | . no_direction = 0, | |
91 | . read_direction = 1, | |
92 | . write_direction = 2, | |
93 | . both_direction = 3 | |
94 | . } | |
95 | . direction; | |
96 | . | |
97 | . {* Format_specific flags. *} | |
98 | . flagword flags; | |
99 | . | |
100 | . {* Currently my_archive is tested before adding origin to | |
101 | . anything. I believe that this can become always an add of | |
102 | . origin, with origin set to 0 for non archive files. *} | |
103 | . ufile_ptr origin; | |
104 | . | |
105 | . {* Remember when output has begun, to stop strange things | |
106 | . from happening. *} | |
b34976b6 | 107 | . bfd_boolean output_has_begun; |
b5f79c76 NC |
108 | . |
109 | . {* A hash table for section names. *} | |
110 | . struct bfd_hash_table section_htab; | |
111 | . | |
112 | . {* Pointer to linked list of sections. *} | |
113 | . struct sec *sections; | |
114 | . | |
115 | . {* The place where we add to the section list. *} | |
116 | . struct sec **section_tail; | |
117 | . | |
118 | . {* The number of sections. *} | |
119 | . unsigned int section_count; | |
120 | . | |
121 | . {* Stuff only useful for object files: | |
122 | . The start address. *} | |
123 | . bfd_vma start_address; | |
124 | . | |
125 | . {* Used for input and output. *} | |
126 | . unsigned int symcount; | |
127 | . | |
128 | . {* Symbol table for output BFD (with symcount entries). *} | |
129 | . struct symbol_cache_entry **outsymbols; | |
130 | . | |
1f70368c DJ |
131 | . {* Used for slurped dynamic symbol tables. *} |
132 | . unsigned int dynsymcount; | |
133 | . | |
b5f79c76 NC |
134 | . {* Pointer to structure which contains architecture information. *} |
135 | . const struct bfd_arch_info *arch_info; | |
136 | . | |
137 | . {* Stuff only useful for archives. *} | |
138 | . PTR arelt_data; | |
139 | . struct _bfd *my_archive; {* The containing archive BFD. *} | |
140 | . struct _bfd *next; {* The next BFD in the archive. *} | |
141 | . struct _bfd *archive_head; {* The first BFD in the archive. *} | |
b34976b6 | 142 | . bfd_boolean has_armap; |
252b5132 | 143 | . |
b5f79c76 NC |
144 | . {* A chain of BFD structures involved in a link. *} |
145 | . struct _bfd *link_next; | |
146 | . | |
147 | . {* A field used by _bfd_generic_link_add_archive_symbols. This will | |
148 | . be used only for archive elements. *} | |
149 | . int archive_pass; | |
150 | . | |
151 | . {* Used by the back end to hold private data. *} | |
152 | . union | |
153 | . { | |
252b5132 RH |
154 | . struct aout_data_struct *aout_data; |
155 | . struct artdata *aout_ar_data; | |
156 | . struct _oasys_data *oasys_obj_data; | |
157 | . struct _oasys_ar_data *oasys_ar_data; | |
158 | . struct coff_tdata *coff_obj_data; | |
159 | . struct pe_tdata *pe_obj_data; | |
160 | . struct xcoff_tdata *xcoff_obj_data; | |
161 | . struct ecoff_tdata *ecoff_obj_data; | |
162 | . struct ieee_data_struct *ieee_data; | |
163 | . struct ieee_ar_data_struct *ieee_ar_data; | |
164 | . struct srec_data_struct *srec_data; | |
165 | . struct ihex_data_struct *ihex_data; | |
166 | . struct tekhex_data_struct *tekhex_data; | |
167 | . struct elf_obj_tdata *elf_obj_data; | |
168 | . struct nlm_obj_tdata *nlm_obj_data; | |
169 | . struct bout_data_struct *bout_data; | |
3c3bdf30 | 170 | . struct mmo_data_struct *mmo_data; |
252b5132 RH |
171 | . struct sun_core_struct *sun_core_data; |
172 | . struct sco5_core_struct *sco5_core_data; | |
173 | . struct trad_core_struct *trad_core_data; | |
174 | . struct som_data_struct *som_data; | |
175 | . struct hpux_core_struct *hpux_core_data; | |
176 | . struct hppabsd_core_struct *hppabsd_core_data; | |
177 | . struct sgi_core_struct *sgi_core_data; | |
178 | . struct lynx_core_struct *lynx_core_data; | |
179 | . struct osf_core_struct *osf_core_data; | |
180 | . struct cisco_core_struct *cisco_core_data; | |
181 | . struct versados_data_struct *versados_data; | |
182 | . struct netbsd_core_struct *netbsd_core_data; | |
3af9a47b NC |
183 | . struct mach_o_data_struct *mach_o_data; |
184 | . struct mach_o_fat_data_struct *mach_o_fat_data; | |
185 | . struct bfd_pef_data_struct *pef_data; | |
186 | . struct bfd_pef_xlib_data_struct *pef_xlib_data; | |
187 | . struct bfd_sym_data_struct *sym_data; | |
252b5132 | 188 | . PTR any; |
b5f79c76 NC |
189 | . } |
190 | . tdata; | |
aebad5fe | 191 | . |
b5f79c76 NC |
192 | . {* Used by the application to hold private data. *} |
193 | . PTR usrdata; | |
252b5132 RH |
194 | . |
195 | . {* Where all the allocated stuff under this BFD goes. This is a | |
196 | . struct objalloc *, but we use PTR to avoid requiring the inclusion of | |
197 | . objalloc.h. *} | |
b5f79c76 | 198 | . PTR memory; |
252b5132 RH |
199 | .}; |
200 | . | |
201 | */ | |
202 | ||
203 | #include "bfd.h" | |
6a0735ef | 204 | #include "bfdver.h" |
252b5132 RH |
205 | #include "sysdep.h" |
206 | ||
207 | #ifdef ANSI_PROTOTYPES | |
208 | #include <stdarg.h> | |
209 | #else | |
210 | #include <varargs.h> | |
211 | #endif | |
212 | ||
213 | #include "libiberty.h" | |
3882b010 | 214 | #include "safe-ctype.h" |
252b5132 RH |
215 | #include "bfdlink.h" |
216 | #include "libbfd.h" | |
217 | #include "coff/internal.h" | |
218 | #include "coff/sym.h" | |
219 | #include "libcoff.h" | |
220 | #include "libecoff.h" | |
221 | #undef obj_symbols | |
222 | #include "elf-bfd.h" | |
252b5132 RH |
223 | \f |
224 | /* provide storage for subsystem, stack and heap data which may have been | |
225 | passed in on the command line. Ld puts this data into a bfd_link_info | |
226 | struct which ultimately gets passed in to the bfd. When it arrives, copy | |
227 | it to the following struct so that the data will be available in coffcode.h | |
228 | where it is needed. The typedef's used are defined in bfd.h */ | |
252b5132 RH |
229 | \f |
230 | /* | |
231 | SECTION | |
232 | Error reporting | |
233 | ||
234 | Most BFD functions return nonzero on success (check their | |
235 | individual documentation for precise semantics). On an error, | |
236 | they call <<bfd_set_error>> to set an error condition that callers | |
237 | can check by calling <<bfd_get_error>>. | |
238 | If that returns <<bfd_error_system_call>>, then check | |
239 | <<errno>>. | |
240 | ||
241 | The easiest way to report a BFD error to the user is to | |
242 | use <<bfd_perror>>. | |
243 | ||
244 | SUBSECTION | |
245 | Type <<bfd_error_type>> | |
246 | ||
247 | The values returned by <<bfd_get_error>> are defined by the | |
248 | enumerated type <<bfd_error_type>>. | |
249 | ||
250 | CODE_FRAGMENT | |
251 | . | |
252 | .typedef enum bfd_error | |
253 | .{ | |
254 | . bfd_error_no_error = 0, | |
255 | . bfd_error_system_call, | |
256 | . bfd_error_invalid_target, | |
257 | . bfd_error_wrong_format, | |
3619ad04 | 258 | . bfd_error_wrong_object_format, |
252b5132 RH |
259 | . bfd_error_invalid_operation, |
260 | . bfd_error_no_memory, | |
261 | . bfd_error_no_symbols, | |
262 | . bfd_error_no_armap, | |
263 | . bfd_error_no_more_archived_files, | |
264 | . bfd_error_malformed_archive, | |
265 | . bfd_error_file_not_recognized, | |
266 | . bfd_error_file_ambiguously_recognized, | |
267 | . bfd_error_no_contents, | |
268 | . bfd_error_nonrepresentable_section, | |
269 | . bfd_error_no_debug_section, | |
270 | . bfd_error_bad_value, | |
271 | . bfd_error_file_truncated, | |
272 | . bfd_error_file_too_big, | |
273 | . bfd_error_invalid_error_code | |
b5f79c76 NC |
274 | .} |
275 | .bfd_error_type; | |
252b5132 RH |
276 | . |
277 | */ | |
278 | ||
279 | static bfd_error_type bfd_error = bfd_error_no_error; | |
280 | ||
55ab10f0 NC |
281 | const char *const bfd_errmsgs[] = |
282 | { | |
283 | N_("No error"), | |
284 | N_("System call error"), | |
285 | N_("Invalid bfd target"), | |
286 | N_("File in wrong format"), | |
3619ad04 | 287 | N_("Archive object file in wrong format"), |
55ab10f0 NC |
288 | N_("Invalid operation"), |
289 | N_("Memory exhausted"), | |
290 | N_("No symbols"), | |
291 | N_("Archive has no index; run ranlib to add one"), | |
292 | N_("No more archived files"), | |
293 | N_("Malformed archive"), | |
294 | N_("File format not recognized"), | |
295 | N_("File format is ambiguous"), | |
296 | N_("Section has no contents"), | |
297 | N_("Nonrepresentable section on output"), | |
298 | N_("Symbol needs debug section which does not exist"), | |
299 | N_("Bad value"), | |
300 | N_("File truncated"), | |
301 | N_("File too big"), | |
302 | N_("#<Invalid error code>") | |
303 | }; | |
252b5132 RH |
304 | |
305 | /* | |
306 | FUNCTION | |
307 | bfd_get_error | |
308 | ||
309 | SYNOPSIS | |
310 | bfd_error_type bfd_get_error (void); | |
311 | ||
312 | DESCRIPTION | |
313 | Return the current BFD error condition. | |
314 | */ | |
315 | ||
316 | bfd_error_type | |
317 | bfd_get_error () | |
318 | { | |
319 | return bfd_error; | |
320 | } | |
321 | ||
322 | /* | |
323 | FUNCTION | |
324 | bfd_set_error | |
325 | ||
326 | SYNOPSIS | |
327 | void bfd_set_error (bfd_error_type error_tag); | |
328 | ||
329 | DESCRIPTION | |
330 | Set the BFD error condition to be @var{error_tag}. | |
331 | */ | |
332 | ||
333 | void | |
334 | bfd_set_error (error_tag) | |
335 | bfd_error_type error_tag; | |
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 * |
252b5132 RH |
353 | bfd_errmsg (error_tag) |
354 | bfd_error_type error_tag; | |
355 | { | |
356 | #ifndef errno | |
357 | extern int errno; | |
358 | #endif | |
359 | if (error_tag == bfd_error_system_call) | |
360 | return xstrerror (errno); | |
361 | ||
55ab10f0 NC |
362 | if ((((int) error_tag < (int) bfd_error_no_error) || |
363 | ((int) error_tag > (int) bfd_error_invalid_error_code))) | |
252b5132 RH |
364 | error_tag = bfd_error_invalid_error_code;/* sanity check */ |
365 | ||
366 | return _(bfd_errmsgs [(int)error_tag]); | |
367 | } | |
368 | ||
369 | /* | |
370 | FUNCTION | |
371 | bfd_perror | |
372 | ||
373 | SYNOPSIS | |
55ab10f0 | 374 | void bfd_perror (const char *message); |
252b5132 RH |
375 | |
376 | DESCRIPTION | |
377 | Print to the standard error stream a string describing the | |
378 | last BFD error that occurred, or the last system error if | |
379 | the last BFD error was a system call failure. If @var{message} | |
380 | is non-NULL and non-empty, the error string printed is preceded | |
381 | by @var{message}, a colon, and a space. It is followed by a newline. | |
382 | */ | |
383 | ||
384 | void | |
385 | bfd_perror (message) | |
55ab10f0 | 386 | const char *message; |
252b5132 RH |
387 | { |
388 | if (bfd_get_error () == bfd_error_system_call) | |
55ab10f0 NC |
389 | /* Must be a system error then. */ |
390 | perror ((char *)message); | |
391 | else | |
392 | { | |
393 | if (message == NULL || *message == '\0') | |
394 | fprintf (stderr, "%s\n", bfd_errmsg (bfd_get_error ())); | |
395 | else | |
396 | fprintf (stderr, "%s: %s\n", message, bfd_errmsg (bfd_get_error ())); | |
397 | } | |
252b5132 RH |
398 | } |
399 | ||
400 | /* | |
401 | SUBSECTION | |
402 | BFD error handler | |
403 | ||
404 | Some BFD functions want to print messages describing the | |
405 | problem. They call a BFD error handler function. This | |
406 | function may be overriden by the program. | |
407 | ||
408 | The BFD error handler acts like printf. | |
409 | ||
410 | CODE_FRAGMENT | |
411 | . | |
412 | .typedef void (*bfd_error_handler_type) PARAMS ((const char *, ...)); | |
413 | . | |
414 | */ | |
415 | ||
416 | /* The program name used when printing BFD error messages. */ | |
417 | ||
418 | static const char *_bfd_error_program_name; | |
419 | ||
420 | /* This is the default routine to handle BFD error messages. */ | |
421 | ||
252b5132 RH |
422 | static void _bfd_default_error_handler PARAMS ((const char *s, ...)); |
423 | ||
424 | static void | |
af6166c0 | 425 | _bfd_default_error_handler VPARAMS ((const char *s, ...)) |
252b5132 | 426 | { |
252b5132 RH |
427 | if (_bfd_error_program_name != NULL) |
428 | fprintf (stderr, "%s: ", _bfd_error_program_name); | |
429 | else | |
430 | fprintf (stderr, "BFD: "); | |
431 | ||
af6166c0 AM |
432 | VA_OPEN (p, s); |
433 | VA_FIXEDARG (p, const char *, s); | |
252b5132 | 434 | vfprintf (stderr, s, p); |
af6166c0 | 435 | VA_CLOSE (p); |
252b5132 RH |
436 | |
437 | fprintf (stderr, "\n"); | |
438 | } | |
439 | ||
252b5132 RH |
440 | /* This is a function pointer to the routine which should handle BFD |
441 | error messages. It is called when a BFD routine encounters an | |
442 | error for which it wants to print a message. Going through a | |
443 | function pointer permits a program linked against BFD to intercept | |
444 | the messages and deal with them itself. */ | |
445 | ||
446 | bfd_error_handler_type _bfd_error_handler = _bfd_default_error_handler; | |
447 | ||
448 | /* | |
449 | FUNCTION | |
450 | bfd_set_error_handler | |
451 | ||
452 | SYNOPSIS | |
453 | bfd_error_handler_type bfd_set_error_handler (bfd_error_handler_type); | |
454 | ||
455 | DESCRIPTION | |
456 | Set the BFD error handler function. Returns the previous | |
457 | function. | |
458 | */ | |
459 | ||
460 | bfd_error_handler_type | |
461 | bfd_set_error_handler (pnew) | |
462 | bfd_error_handler_type pnew; | |
463 | { | |
464 | bfd_error_handler_type pold; | |
465 | ||
466 | pold = _bfd_error_handler; | |
467 | _bfd_error_handler = pnew; | |
468 | return pold; | |
469 | } | |
470 | ||
471 | /* | |
472 | FUNCTION | |
473 | bfd_set_error_program_name | |
474 | ||
475 | SYNOPSIS | |
476 | void bfd_set_error_program_name (const char *); | |
477 | ||
478 | DESCRIPTION | |
479 | Set the program name to use when printing a BFD error. This | |
480 | is printed before the error message followed by a colon and | |
481 | space. The string must not be changed after it is passed to | |
482 | this function. | |
483 | */ | |
484 | ||
485 | void | |
486 | bfd_set_error_program_name (name) | |
487 | const char *name; | |
488 | { | |
489 | _bfd_error_program_name = name; | |
490 | } | |
491 | ||
252b5132 RH |
492 | /* |
493 | FUNCTION | |
494 | bfd_get_error_handler | |
495 | ||
496 | SYNOPSIS | |
497 | bfd_error_handler_type bfd_get_error_handler (void); | |
498 | ||
499 | DESCRIPTION | |
500 | Return the BFD error handler function. | |
501 | */ | |
502 | ||
503 | bfd_error_handler_type | |
504 | bfd_get_error_handler () | |
505 | { | |
506 | return _bfd_error_handler; | |
507 | } | |
8f615d07 AM |
508 | |
509 | /* | |
510 | FUNCTION | |
511 | bfd_archive_filename | |
512 | ||
513 | SYNOPSIS | |
514 | const char *bfd_archive_filename (bfd *); | |
515 | ||
516 | DESCRIPTION | |
517 | For a BFD that is a component of an archive, returns a string | |
518 | with both the archive name and file name. For other BFDs, just | |
519 | returns the file name. | |
520 | */ | |
521 | ||
522 | const char * | |
523 | bfd_archive_filename (abfd) | |
524 | bfd *abfd; | |
525 | { | |
526 | if (abfd->my_archive) | |
527 | { | |
528 | static size_t curr = 0; | |
529 | static char *buf; | |
530 | size_t needed; | |
531 | ||
532 | needed = (strlen (bfd_get_filename (abfd->my_archive)) | |
533 | + strlen (bfd_get_filename (abfd)) + 3); | |
534 | if (needed > curr) | |
535 | { | |
536 | if (curr) | |
537 | free (buf); | |
538 | curr = needed + (needed >> 1); | |
af6166c0 | 539 | buf = bfd_malloc ((bfd_size_type) curr); |
8f615d07 AM |
540 | /* If we can't malloc, fail safe by returning just the file |
541 | name. This function is only used when building error | |
542 | messages. */ | |
543 | if (!buf) | |
544 | { | |
545 | curr = 0; | |
546 | return bfd_get_filename (abfd); | |
547 | } | |
548 | } | |
549 | sprintf (buf, "%s(%s)", bfd_get_filename (abfd->my_archive), | |
550 | bfd_get_filename (abfd)); | |
551 | return buf; | |
552 | } | |
553 | else | |
554 | return bfd_get_filename (abfd); | |
555 | } | |
252b5132 RH |
556 | \f |
557 | /* | |
558 | SECTION | |
559 | Symbols | |
560 | */ | |
561 | ||
562 | /* | |
563 | FUNCTION | |
564 | bfd_get_reloc_upper_bound | |
565 | ||
566 | SYNOPSIS | |
567 | long bfd_get_reloc_upper_bound(bfd *abfd, asection *sect); | |
568 | ||
569 | DESCRIPTION | |
570 | Return the number of bytes required to store the | |
571 | relocation information associated with section @var{sect} | |
572 | attached to bfd @var{abfd}. If an error occurs, return -1. | |
573 | ||
574 | */ | |
575 | ||
252b5132 RH |
576 | long |
577 | bfd_get_reloc_upper_bound (abfd, asect) | |
578 | bfd *abfd; | |
579 | sec_ptr asect; | |
580 | { | |
55ab10f0 NC |
581 | if (abfd->format != bfd_object) |
582 | { | |
583 | bfd_set_error (bfd_error_invalid_operation); | |
584 | return -1; | |
585 | } | |
252b5132 RH |
586 | |
587 | return BFD_SEND (abfd, _get_reloc_upper_bound, (abfd, asect)); | |
588 | } | |
589 | ||
590 | /* | |
591 | FUNCTION | |
592 | bfd_canonicalize_reloc | |
593 | ||
594 | SYNOPSIS | |
595 | long bfd_canonicalize_reloc | |
596 | (bfd *abfd, | |
597 | asection *sec, | |
598 | arelent **loc, | |
599 | asymbol **syms); | |
600 | ||
601 | DESCRIPTION | |
602 | Call the back end associated with the open BFD | |
603 | @var{abfd} and translate the external form of the relocation | |
604 | information attached to @var{sec} into the internal canonical | |
605 | form. Place the table into memory at @var{loc}, which has | |
606 | been preallocated, usually by a call to | |
607 | <<bfd_get_reloc_upper_bound>>. Returns the number of relocs, or | |
608 | -1 on error. | |
609 | ||
610 | The @var{syms} table is also needed for horrible internal magic | |
611 | reasons. | |
612 | ||
252b5132 RH |
613 | */ |
614 | long | |
615 | bfd_canonicalize_reloc (abfd, asect, location, symbols) | |
616 | bfd *abfd; | |
617 | sec_ptr asect; | |
618 | arelent **location; | |
619 | asymbol **symbols; | |
620 | { | |
55ab10f0 NC |
621 | if (abfd->format != bfd_object) |
622 | { | |
623 | bfd_set_error (bfd_error_invalid_operation); | |
624 | return -1; | |
625 | } | |
626 | ||
252b5132 RH |
627 | return BFD_SEND (abfd, _bfd_canonicalize_reloc, |
628 | (abfd, asect, location, symbols)); | |
629 | } | |
630 | ||
631 | /* | |
632 | FUNCTION | |
633 | bfd_set_reloc | |
634 | ||
635 | SYNOPSIS | |
636 | void bfd_set_reloc | |
b5f79c76 | 637 | (bfd *abfd, asection *sec, arelent **rel, unsigned int count); |
252b5132 RH |
638 | |
639 | DESCRIPTION | |
640 | Set the relocation pointer and count within | |
641 | section @var{sec} to the values @var{rel} and @var{count}. | |
642 | The argument @var{abfd} is ignored. | |
643 | ||
644 | */ | |
aebad5fe | 645 | |
252b5132 RH |
646 | void |
647 | bfd_set_reloc (ignore_abfd, asect, location, count) | |
7442e600 | 648 | bfd *ignore_abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
649 | sec_ptr asect; |
650 | arelent **location; | |
651 | unsigned int count; | |
652 | { | |
653 | asect->orelocation = location; | |
654 | asect->reloc_count = count; | |
655 | } | |
656 | ||
657 | /* | |
658 | FUNCTION | |
659 | bfd_set_file_flags | |
660 | ||
661 | SYNOPSIS | |
b34976b6 | 662 | bfd_boolean bfd_set_file_flags(bfd *abfd, flagword flags); |
252b5132 RH |
663 | |
664 | DESCRIPTION | |
665 | Set the flag word in the BFD @var{abfd} to the value @var{flags}. | |
666 | ||
667 | Possible errors are: | |
668 | o <<bfd_error_wrong_format>> - The target bfd was not of object format. | |
669 | o <<bfd_error_invalid_operation>> - The target bfd was open for reading. | |
670 | o <<bfd_error_invalid_operation>> - | |
671 | The flag word contained a bit which was not applicable to the | |
672 | type of file. E.g., an attempt was made to set the <<D_PAGED>> bit | |
673 | on a BFD format which does not support demand paging. | |
674 | ||
675 | */ | |
676 | ||
b34976b6 | 677 | bfd_boolean |
252b5132 RH |
678 | bfd_set_file_flags (abfd, flags) |
679 | bfd *abfd; | |
680 | flagword flags; | |
681 | { | |
55ab10f0 NC |
682 | if (abfd->format != bfd_object) |
683 | { | |
684 | bfd_set_error (bfd_error_wrong_format); | |
b34976b6 | 685 | return FALSE; |
55ab10f0 | 686 | } |
252b5132 | 687 | |
55ab10f0 NC |
688 | if (bfd_read_p (abfd)) |
689 | { | |
690 | bfd_set_error (bfd_error_invalid_operation); | |
b34976b6 | 691 | return FALSE; |
55ab10f0 | 692 | } |
252b5132 RH |
693 | |
694 | bfd_get_file_flags (abfd) = flags; | |
55ab10f0 NC |
695 | if ((flags & bfd_applicable_file_flags (abfd)) != flags) |
696 | { | |
697 | bfd_set_error (bfd_error_invalid_operation); | |
b34976b6 | 698 | return FALSE; |
55ab10f0 | 699 | } |
252b5132 | 700 | |
b34976b6 | 701 | return TRUE; |
252b5132 RH |
702 | } |
703 | ||
704 | void | |
705 | bfd_assert (file, line) | |
706 | const char *file; | |
707 | int line; | |
708 | { | |
aec2f561 AM |
709 | (*_bfd_error_handler) (_("BFD %s assertion fail %s:%d"), |
710 | BFD_VERSION_STRING, file, line); | |
252b5132 RH |
711 | } |
712 | ||
c0bed66d ILT |
713 | /* A more or less friendly abort message. In libbfd.h abort is |
714 | defined to call this function. */ | |
715 | ||
716 | #ifndef EXIT_FAILURE | |
717 | #define EXIT_FAILURE 1 | |
718 | #endif | |
719 | ||
720 | void | |
721 | _bfd_abort (file, line, fn) | |
722 | const char *file; | |
723 | int line; | |
724 | const char *fn; | |
725 | { | |
726 | if (fn != NULL) | |
727 | (*_bfd_error_handler) | |
aec2f561 AM |
728 | (_("BFD %s internal error, aborting at %s line %d in %s\n"), |
729 | BFD_VERSION_STRING, file, line, fn); | |
c0bed66d ILT |
730 | else |
731 | (*_bfd_error_handler) | |
391154e9 | 732 | (_("BFD %s internal error, aborting at %s line %d\n"), |
aec2f561 | 733 | BFD_VERSION_STRING, file, line); |
c0bed66d ILT |
734 | (*_bfd_error_handler) (_("Please report this bug.\n")); |
735 | xexit (EXIT_FAILURE); | |
736 | } | |
252b5132 | 737 | |
125c4a69 NC |
738 | /* |
739 | FUNCTION | |
740 | bfd_get_arch_size | |
741 | ||
742 | SYNOPSIS | |
743 | int bfd_get_arch_size (bfd *abfd); | |
744 | ||
745 | DESCRIPTION | |
746 | Returns the architecture address size, in bits, as determined | |
747 | by the object file's format. For ELF, this information is | |
748 | included in the header. | |
749 | ||
750 | RETURNS | |
751 | Returns the arch size in bits if known, <<-1>> otherwise. | |
752 | */ | |
753 | ||
754 | int | |
755 | bfd_get_arch_size (abfd) | |
756 | bfd *abfd; | |
757 | { | |
758 | if (abfd->xvec->flavour == bfd_target_elf_flavour) | |
759 | return (get_elf_backend_data (abfd))->s->arch_size; | |
760 | ||
125c4a69 NC |
761 | return -1; |
762 | } | |
763 | ||
764 | /* | |
765 | FUNCTION | |
766 | bfd_get_sign_extend_vma | |
767 | ||
768 | SYNOPSIS | |
769 | int bfd_get_sign_extend_vma (bfd *abfd); | |
770 | ||
771 | DESCRIPTION | |
772 | Indicates if the target architecture "naturally" sign extends | |
773 | an address. Some architectures implicitly sign extend address | |
774 | values when they are converted to types larger than the size | |
775 | of an address. For instance, bfd_get_start_address() will | |
776 | return an address sign extended to fill a bfd_vma when this is | |
777 | the case. | |
778 | ||
779 | RETURNS | |
780 | Returns <<1>> if the target architecture is known to sign | |
781 | extend addresses, <<0>> if the target architecture is known to | |
782 | not sign extend addresses, and <<-1>> otherwise. | |
783 | */ | |
784 | ||
785 | int | |
786 | bfd_get_sign_extend_vma (abfd) | |
787 | bfd *abfd; | |
788 | { | |
f47e5071 NC |
789 | char *name; |
790 | ||
125c4a69 NC |
791 | if (bfd_get_flavour (abfd) == bfd_target_elf_flavour) |
792 | return (get_elf_backend_data (abfd)->sign_extend_vma); | |
793 | ||
f47e5071 NC |
794 | name = bfd_get_target (abfd); |
795 | ||
796 | /* Return a proper value for DJGPP COFF (an x86 COFF variant). | |
797 | This function is required for DWARF2 support, but there is | |
798 | no place to store this information in the COFF back end. | |
799 | Should enough other COFF targets add support for DWARF2, | |
800 | a place will have to be found. Until then, this hack will do. */ | |
801 | if (strncmp (name, "coff-go32", sizeof ("coff-go32") - 1) == 0) | |
802 | return 1; | |
803 | ||
a022216b | 804 | bfd_set_error (bfd_error_wrong_format); |
125c4a69 NC |
805 | return -1; |
806 | } | |
807 | ||
252b5132 RH |
808 | /* |
809 | FUNCTION | |
810 | bfd_set_start_address | |
811 | ||
812 | SYNOPSIS | |
b34976b6 | 813 | bfd_boolean bfd_set_start_address(bfd *abfd, bfd_vma vma); |
252b5132 RH |
814 | |
815 | DESCRIPTION | |
816 | Make @var{vma} the entry point of output BFD @var{abfd}. | |
817 | ||
818 | RETURNS | |
b34976b6 | 819 | Returns <<TRUE>> on success, <<FALSE>> otherwise. |
252b5132 RH |
820 | */ |
821 | ||
b34976b6 | 822 | bfd_boolean |
55ab10f0 NC |
823 | bfd_set_start_address (abfd, vma) |
824 | bfd *abfd; | |
825 | bfd_vma vma; | |
252b5132 RH |
826 | { |
827 | abfd->start_address = vma; | |
b34976b6 | 828 | return TRUE; |
252b5132 RH |
829 | } |
830 | ||
252b5132 RH |
831 | /* |
832 | FUNCTION | |
833 | bfd_get_gp_size | |
834 | ||
835 | SYNOPSIS | |
c0846b23 | 836 | unsigned int bfd_get_gp_size(bfd *abfd); |
252b5132 RH |
837 | |
838 | DESCRIPTION | |
839 | Return the maximum size of objects to be optimized using the GP | |
840 | register under MIPS ECOFF. This is typically set by the <<-G>> | |
841 | argument to the compiler, assembler or linker. | |
842 | */ | |
843 | ||
c0846b23 | 844 | unsigned int |
252b5132 RH |
845 | bfd_get_gp_size (abfd) |
846 | bfd *abfd; | |
847 | { | |
848 | if (abfd->format == bfd_object) | |
849 | { | |
850 | if (abfd->xvec->flavour == bfd_target_ecoff_flavour) | |
851 | return ecoff_data (abfd)->gp_size; | |
852 | else if (abfd->xvec->flavour == bfd_target_elf_flavour) | |
853 | return elf_gp_size (abfd); | |
854 | } | |
855 | return 0; | |
856 | } | |
857 | ||
858 | /* | |
859 | FUNCTION | |
860 | bfd_set_gp_size | |
861 | ||
862 | SYNOPSIS | |
c0846b23 | 863 | void bfd_set_gp_size(bfd *abfd, unsigned int i); |
252b5132 RH |
864 | |
865 | DESCRIPTION | |
866 | Set the maximum size of objects to be optimized using the GP | |
867 | register under ECOFF or MIPS ELF. This is typically set by | |
868 | the <<-G>> argument to the compiler, assembler or linker. | |
869 | */ | |
870 | ||
871 | void | |
872 | bfd_set_gp_size (abfd, i) | |
873 | bfd *abfd; | |
c0846b23 | 874 | unsigned int i; |
252b5132 | 875 | { |
55ab10f0 | 876 | /* Don't try to set GP size on an archive or core file! */ |
252b5132 RH |
877 | if (abfd->format != bfd_object) |
878 | return; | |
55ab10f0 | 879 | |
252b5132 RH |
880 | if (abfd->xvec->flavour == bfd_target_ecoff_flavour) |
881 | ecoff_data (abfd)->gp_size = i; | |
882 | else if (abfd->xvec->flavour == bfd_target_elf_flavour) | |
883 | elf_gp_size (abfd) = i; | |
884 | } | |
885 | ||
886 | /* Get the GP value. This is an internal function used by some of the | |
887 | relocation special_function routines on targets which support a GP | |
888 | register. */ | |
889 | ||
890 | bfd_vma | |
891 | _bfd_get_gp_value (abfd) | |
892 | bfd *abfd; | |
893 | { | |
55ab10f0 NC |
894 | if (abfd->format != bfd_object) |
895 | return 0; | |
896 | ||
897 | if (abfd->xvec->flavour == bfd_target_ecoff_flavour) | |
898 | return ecoff_data (abfd)->gp; | |
899 | else if (abfd->xvec->flavour == bfd_target_elf_flavour) | |
900 | return elf_gp (abfd); | |
901 | ||
252b5132 RH |
902 | return 0; |
903 | } | |
904 | ||
905 | /* Set the GP value. */ | |
906 | ||
907 | void | |
908 | _bfd_set_gp_value (abfd, v) | |
909 | bfd *abfd; | |
910 | bfd_vma v; | |
911 | { | |
912 | if (abfd->format != bfd_object) | |
913 | return; | |
55ab10f0 | 914 | |
252b5132 RH |
915 | if (abfd->xvec->flavour == bfd_target_ecoff_flavour) |
916 | ecoff_data (abfd)->gp = v; | |
917 | else if (abfd->xvec->flavour == bfd_target_elf_flavour) | |
918 | elf_gp (abfd) = v; | |
919 | } | |
920 | ||
921 | /* | |
922 | FUNCTION | |
923 | bfd_scan_vma | |
924 | ||
925 | SYNOPSIS | |
55ab10f0 | 926 | bfd_vma bfd_scan_vma(const char *string, const char **end, int base); |
252b5132 RH |
927 | |
928 | DESCRIPTION | |
929 | Convert, like <<strtoul>>, a numerical expression | |
930 | @var{string} into a <<bfd_vma>> integer, and return that integer. | |
931 | (Though without as many bells and whistles as <<strtoul>>.) | |
932 | The expression is assumed to be unsigned (i.e., positive). | |
933 | If given a @var{base}, it is used as the base for conversion. | |
934 | A base of 0 causes the function to interpret the string | |
935 | in hex if a leading "0x" or "0X" is found, otherwise | |
936 | in octal if a leading zero is found, otherwise in decimal. | |
937 | ||
88eaccc2 AM |
938 | If the value would overflow, the maximum <<bfd_vma>> value is |
939 | returned. | |
252b5132 RH |
940 | */ |
941 | ||
942 | bfd_vma | |
943 | bfd_scan_vma (string, end, base) | |
55ab10f0 NC |
944 | const char *string; |
945 | const char **end; | |
252b5132 RH |
946 | int base; |
947 | { | |
948 | bfd_vma value; | |
88eaccc2 AM |
949 | bfd_vma cutoff; |
950 | unsigned int cutlim; | |
951 | int overflow; | |
252b5132 RH |
952 | |
953 | /* Let the host do it if possible. */ | |
eb6e10cb | 954 | if (sizeof (bfd_vma) <= sizeof (unsigned long)) |
252b5132 RH |
955 | return (bfd_vma) strtoul (string, (char **) end, base); |
956 | ||
252b5132 RH |
957 | if (base == 0) |
958 | { | |
959 | if (string[0] == '0') | |
960 | { | |
961 | if ((string[1] == 'x') || (string[1] == 'X')) | |
962 | base = 16; | |
252b5132 RH |
963 | else |
964 | base = 8; | |
965 | } | |
252b5132 | 966 | } |
55ab10f0 | 967 | |
88eaccc2 AM |
968 | if ((base < 2) || (base > 36)) |
969 | base = 10; | |
970 | ||
971 | if (base == 16 | |
972 | && string[0] == '0' | |
973 | && (string[1] == 'x' || string[1] == 'X') | |
974 | && ISXDIGIT (string[2])) | |
975 | { | |
976 | string += 2; | |
977 | } | |
aebad5fe | 978 | |
88eaccc2 AM |
979 | cutoff = (~ (bfd_vma) 0) / (bfd_vma) base; |
980 | cutlim = (~ (bfd_vma) 0) % (bfd_vma) base; | |
981 | value = 0; | |
982 | overflow = 0; | |
983 | while (1) | |
984 | { | |
985 | unsigned int digit; | |
986 | ||
987 | digit = *string; | |
988 | if (ISDIGIT (digit)) | |
989 | digit = digit - '0'; | |
990 | else if (ISALPHA (digit)) | |
991 | digit = TOUPPER (digit) - 'A' + 10; | |
992 | else | |
993 | break; | |
994 | if (digit >= (unsigned int) base) | |
995 | break; | |
996 | if (value > cutoff || (value == cutoff && digit > cutlim)) | |
997 | overflow = 1; | |
998 | value = value * base + digit; | |
999 | ++string; | |
1000 | } | |
252b5132 | 1001 | |
88eaccc2 AM |
1002 | if (overflow) |
1003 | value = ~ (bfd_vma) 0; | |
252b5132 | 1004 | |
88eaccc2 AM |
1005 | if (end != NULL) |
1006 | *end = string; | |
252b5132 RH |
1007 | |
1008 | return value; | |
1009 | } | |
1010 | ||
1011 | /* | |
1012 | FUNCTION | |
1013 | bfd_copy_private_bfd_data | |
1014 | ||
1015 | SYNOPSIS | |
b34976b6 | 1016 | bfd_boolean bfd_copy_private_bfd_data(bfd *ibfd, bfd *obfd); |
252b5132 RH |
1017 | |
1018 | DESCRIPTION | |
aebad5fe | 1019 | Copy private BFD information from the BFD @var{ibfd} to the |
b34976b6 | 1020 | the BFD @var{obfd}. Return <<TRUE>> on success, <<FALSE>> on error. |
252b5132 RH |
1021 | Possible error returns are: |
1022 | ||
1023 | o <<bfd_error_no_memory>> - | |
1024 | Not enough memory exists to create private data for @var{obfd}. | |
1025 | ||
1026 | .#define bfd_copy_private_bfd_data(ibfd, obfd) \ | |
1027 | . BFD_SEND (obfd, _bfd_copy_private_bfd_data, \ | |
1028 | . (ibfd, obfd)) | |
1029 | ||
1030 | */ | |
1031 | ||
1032 | /* | |
1033 | FUNCTION | |
1034 | bfd_merge_private_bfd_data | |
1035 | ||
1036 | SYNOPSIS | |
b34976b6 | 1037 | bfd_boolean bfd_merge_private_bfd_data(bfd *ibfd, bfd *obfd); |
252b5132 RH |
1038 | |
1039 | DESCRIPTION | |
aebad5fe | 1040 | Merge private BFD information from the BFD @var{ibfd} to the |
b34976b6 AM |
1041 | the output file BFD @var{obfd} when linking. Return <<TRUE>> |
1042 | on success, <<FALSE>> on error. Possible error returns are: | |
252b5132 RH |
1043 | |
1044 | o <<bfd_error_no_memory>> - | |
1045 | Not enough memory exists to create private data for @var{obfd}. | |
1046 | ||
1047 | .#define bfd_merge_private_bfd_data(ibfd, obfd) \ | |
1048 | . BFD_SEND (obfd, _bfd_merge_private_bfd_data, \ | |
1049 | . (ibfd, obfd)) | |
1050 | ||
1051 | */ | |
1052 | ||
1053 | /* | |
1054 | FUNCTION | |
1055 | bfd_set_private_flags | |
1056 | ||
1057 | SYNOPSIS | |
b34976b6 | 1058 | bfd_boolean bfd_set_private_flags(bfd *abfd, flagword flags); |
252b5132 RH |
1059 | |
1060 | DESCRIPTION | |
1061 | Set private BFD flag information in the BFD @var{abfd}. | |
b34976b6 | 1062 | Return <<TRUE>> on success, <<FALSE>> on error. Possible error |
252b5132 RH |
1063 | returns are: |
1064 | ||
1065 | o <<bfd_error_no_memory>> - | |
1066 | Not enough memory exists to create private data for @var{obfd}. | |
1067 | ||
1068 | .#define bfd_set_private_flags(abfd, flags) \ | |
1069 | . BFD_SEND (abfd, _bfd_set_private_flags, \ | |
1070 | . (abfd, flags)) | |
1071 | ||
1072 | */ | |
1073 | ||
1074 | /* | |
1075 | FUNCTION | |
1076 | stuff | |
1077 | ||
1078 | DESCRIPTION | |
1079 | Stuff which should be documented: | |
1080 | ||
1081 | .#define bfd_sizeof_headers(abfd, reloc) \ | |
1082 | . BFD_SEND (abfd, _bfd_sizeof_headers, (abfd, reloc)) | |
1083 | . | |
1084 | .#define bfd_find_nearest_line(abfd, sec, syms, off, file, func, line) \ | |
1085 | . BFD_SEND (abfd, _bfd_find_nearest_line, (abfd, sec, syms, off, file, func, line)) | |
1086 | . | |
1087 | . {* Do these three do anything useful at all, for any back end? *} | |
1088 | .#define bfd_debug_info_start(abfd) \ | |
1089 | . BFD_SEND (abfd, _bfd_debug_info_start, (abfd)) | |
1090 | . | |
1091 | .#define bfd_debug_info_end(abfd) \ | |
1092 | . BFD_SEND (abfd, _bfd_debug_info_end, (abfd)) | |
1093 | . | |
1094 | .#define bfd_debug_info_accumulate(abfd, section) \ | |
1095 | . BFD_SEND (abfd, _bfd_debug_info_accumulate, (abfd, section)) | |
1096 | . | |
1097 | . | |
1098 | .#define bfd_stat_arch_elt(abfd, stat) \ | |
1099 | . BFD_SEND (abfd, _bfd_stat_arch_elt,(abfd, stat)) | |
1100 | . | |
1101 | .#define bfd_update_armap_timestamp(abfd) \ | |
1102 | . BFD_SEND (abfd, _bfd_update_armap_timestamp, (abfd)) | |
1103 | . | |
1104 | .#define bfd_set_arch_mach(abfd, arch, mach)\ | |
1105 | . BFD_SEND ( abfd, _bfd_set_arch_mach, (abfd, arch, mach)) | |
1106 | . | |
1107 | .#define bfd_relax_section(abfd, section, link_info, again) \ | |
1108 | . BFD_SEND (abfd, _bfd_relax_section, (abfd, section, link_info, again)) | |
1109 | . | |
1110 | .#define bfd_gc_sections(abfd, link_info) \ | |
1111 | . BFD_SEND (abfd, _bfd_gc_sections, (abfd, link_info)) | |
8550eb6e JJ |
1112 | . |
1113 | .#define bfd_merge_sections(abfd, link_info) \ | |
1114 | . BFD_SEND (abfd, _bfd_merge_sections, (abfd, link_info)) | |
252b5132 | 1115 | . |
e61463e1 AM |
1116 | .#define bfd_discard_group(abfd, sec) \ |
1117 | . BFD_SEND (abfd, _bfd_discard_group, (abfd, sec)) | |
1118 | . | |
252b5132 RH |
1119 | .#define bfd_link_hash_table_create(abfd) \ |
1120 | . BFD_SEND (abfd, _bfd_link_hash_table_create, (abfd)) | |
1121 | . | |
e2d34d7d DJ |
1122 | .#define bfd_link_hash_table_free(abfd, hash) \ |
1123 | . BFD_SEND (abfd, _bfd_link_hash_table_free, (hash)) | |
1124 | . | |
252b5132 RH |
1125 | .#define bfd_link_add_symbols(abfd, info) \ |
1126 | . BFD_SEND (abfd, _bfd_link_add_symbols, (abfd, info)) | |
1127 | . | |
2d653fc7 AM |
1128 | .#define bfd_link_just_syms(sec, info) \ |
1129 | . BFD_SEND (abfd, _bfd_link_just_syms, (sec, info)) | |
1130 | . | |
252b5132 RH |
1131 | .#define bfd_final_link(abfd, info) \ |
1132 | . BFD_SEND (abfd, _bfd_final_link, (abfd, info)) | |
1133 | . | |
1134 | .#define bfd_free_cached_info(abfd) \ | |
1135 | . BFD_SEND (abfd, _bfd_free_cached_info, (abfd)) | |
1136 | . | |
1137 | .#define bfd_get_dynamic_symtab_upper_bound(abfd) \ | |
1138 | . BFD_SEND (abfd, _bfd_get_dynamic_symtab_upper_bound, (abfd)) | |
1139 | . | |
1140 | .#define bfd_print_private_bfd_data(abfd, file)\ | |
1141 | . BFD_SEND (abfd, _bfd_print_private_bfd_data, (abfd, file)) | |
1142 | . | |
1143 | .#define bfd_canonicalize_dynamic_symtab(abfd, asymbols) \ | |
1144 | . BFD_SEND (abfd, _bfd_canonicalize_dynamic_symtab, (abfd, asymbols)) | |
1145 | . | |
1146 | .#define bfd_get_dynamic_reloc_upper_bound(abfd) \ | |
1147 | . BFD_SEND (abfd, _bfd_get_dynamic_reloc_upper_bound, (abfd)) | |
1148 | . | |
1149 | .#define bfd_canonicalize_dynamic_reloc(abfd, arels, asyms) \ | |
1150 | . BFD_SEND (abfd, _bfd_canonicalize_dynamic_reloc, (abfd, arels, asyms)) | |
1151 | . | |
1152 | .extern bfd_byte *bfd_get_relocated_section_contents | |
1153 | . PARAMS ((bfd *, struct bfd_link_info *, | |
1154 | . struct bfd_link_order *, bfd_byte *, | |
b34976b6 | 1155 | . bfd_boolean, asymbol **)); |
252b5132 RH |
1156 | . |
1157 | ||
1158 | */ | |
1159 | ||
1160 | bfd_byte * | |
1161 | bfd_get_relocated_section_contents (abfd, link_info, link_order, data, | |
1162 | relocateable, symbols) | |
1163 | bfd *abfd; | |
1164 | struct bfd_link_info *link_info; | |
1165 | struct bfd_link_order *link_order; | |
1166 | bfd_byte *data; | |
b34976b6 | 1167 | bfd_boolean relocateable; |
252b5132 RH |
1168 | asymbol **symbols; |
1169 | { | |
1170 | bfd *abfd2; | |
1171 | bfd_byte *(*fn) PARAMS ((bfd *, struct bfd_link_info *, | |
b34976b6 | 1172 | struct bfd_link_order *, bfd_byte *, bfd_boolean, |
252b5132 RH |
1173 | asymbol **)); |
1174 | ||
1175 | if (link_order->type == bfd_indirect_link_order) | |
1176 | { | |
1177 | abfd2 = link_order->u.indirect.section->owner; | |
55ab10f0 | 1178 | if (abfd2 == NULL) |
252b5132 RH |
1179 | abfd2 = abfd; |
1180 | } | |
1181 | else | |
1182 | abfd2 = abfd; | |
55ab10f0 | 1183 | |
252b5132 RH |
1184 | fn = abfd2->xvec->_bfd_get_relocated_section_contents; |
1185 | ||
1186 | return (*fn) (abfd, link_info, link_order, data, relocateable, symbols); | |
1187 | } | |
1188 | ||
1189 | /* Record information about an ELF program header. */ | |
1190 | ||
b34976b6 | 1191 | bfd_boolean |
252b5132 RH |
1192 | bfd_record_phdr (abfd, type, flags_valid, flags, at_valid, at, |
1193 | includes_filehdr, includes_phdrs, count, secs) | |
1194 | bfd *abfd; | |
1195 | unsigned long type; | |
b34976b6 | 1196 | bfd_boolean flags_valid; |
252b5132 | 1197 | flagword flags; |
b34976b6 | 1198 | bfd_boolean at_valid; |
252b5132 | 1199 | bfd_vma at; |
b34976b6 AM |
1200 | bfd_boolean includes_filehdr; |
1201 | bfd_boolean includes_phdrs; | |
252b5132 RH |
1202 | unsigned int count; |
1203 | asection **secs; | |
1204 | { | |
1205 | struct elf_segment_map *m, **pm; | |
dc810e39 | 1206 | bfd_size_type amt; |
252b5132 RH |
1207 | |
1208 | if (bfd_get_flavour (abfd) != bfd_target_elf_flavour) | |
b34976b6 | 1209 | return TRUE; |
252b5132 | 1210 | |
dc810e39 AM |
1211 | amt = sizeof (struct elf_segment_map); |
1212 | amt += ((bfd_size_type) count - 1) * sizeof (asection *); | |
1213 | m = (struct elf_segment_map *) bfd_alloc (abfd, amt); | |
252b5132 | 1214 | if (m == NULL) |
b34976b6 | 1215 | return FALSE; |
252b5132 RH |
1216 | |
1217 | m->next = NULL; | |
1218 | m->p_type = type; | |
1219 | m->p_flags = flags; | |
1220 | m->p_paddr = at; | |
d45913a0 DA |
1221 | m->p_flags_valid = (unsigned int) flags_valid; |
1222 | m->p_paddr_valid = (unsigned int) at_valid; | |
1223 | m->includes_filehdr = (unsigned int) includes_filehdr; | |
1224 | m->includes_phdrs = (unsigned int) includes_phdrs; | |
252b5132 RH |
1225 | m->count = count; |
1226 | if (count > 0) | |
1227 | memcpy (m->sections, secs, count * sizeof (asection *)); | |
1228 | ||
1229 | for (pm = &elf_tdata (abfd)->segment_map; *pm != NULL; pm = &(*pm)->next) | |
1230 | ; | |
1231 | *pm = m; | |
1232 | ||
b34976b6 | 1233 | return TRUE; |
252b5132 | 1234 | } |
ae4221d7 L |
1235 | |
1236 | void | |
1237 | bfd_sprintf_vma (abfd, buf, value) | |
1238 | bfd *abfd; | |
1239 | char *buf; | |
1240 | bfd_vma value; | |
1241 | { | |
1242 | if (bfd_get_flavour (abfd) == bfd_target_elf_flavour) | |
4e771d61 | 1243 | get_elf_backend_data (abfd)->elf_backend_sprintf_vma (abfd, buf, value); |
ef071f24 L |
1244 | else |
1245 | sprintf_vma (buf, value); | |
ae4221d7 L |
1246 | } |
1247 | ||
1248 | void | |
1249 | bfd_fprintf_vma (abfd, stream, value) | |
1250 | bfd *abfd; | |
1251 | PTR stream; | |
1252 | bfd_vma value; | |
1253 | { | |
1254 | if (bfd_get_flavour (abfd) == bfd_target_elf_flavour) | |
4e771d61 | 1255 | get_elf_backend_data (abfd)->elf_backend_fprintf_vma (abfd, stream, value); |
ef071f24 L |
1256 | else |
1257 | fprintf_vma ((FILE *) stream, value); | |
ae4221d7 | 1258 | } |
8c98ec7d AO |
1259 | |
1260 | /* | |
1261 | FUNCTION | |
1262 | bfd_alt_mach_code | |
1263 | ||
1264 | SYNOPSIS | |
b34976b6 | 1265 | bfd_boolean bfd_alt_mach_code(bfd *abfd, int alternative); |
8c98ec7d AO |
1266 | |
1267 | DESCRIPTION | |
1268 | ||
1269 | When more than one machine code number is available for the | |
1270 | same machine type, this function can be used to switch between | |
47badb7b | 1271 | the preferred one (alternative == 0) and any others. Currently, |
8c98ec7d AO |
1272 | only ELF supports this feature, with up to two alternate |
1273 | machine codes. | |
1274 | */ | |
1275 | ||
b34976b6 | 1276 | bfd_boolean |
47badb7b | 1277 | bfd_alt_mach_code (abfd, alternative) |
8c98ec7d | 1278 | bfd *abfd; |
47badb7b | 1279 | int alternative; |
8c98ec7d AO |
1280 | { |
1281 | if (bfd_get_flavour (abfd) == bfd_target_elf_flavour) | |
1282 | { | |
1283 | int code; | |
1284 | ||
47badb7b | 1285 | switch (alternative) |
8c98ec7d AO |
1286 | { |
1287 | case 0: | |
1288 | code = get_elf_backend_data (abfd)->elf_machine_code; | |
1289 | break; | |
1290 | ||
1291 | case 1: | |
1292 | code = get_elf_backend_data (abfd)->elf_machine_alt1; | |
1293 | if (code == 0) | |
b34976b6 | 1294 | return FALSE; |
8c98ec7d AO |
1295 | break; |
1296 | ||
1297 | case 2: | |
1298 | code = get_elf_backend_data (abfd)->elf_machine_alt2; | |
1299 | if (code == 0) | |
b34976b6 | 1300 | return FALSE; |
8c98ec7d AO |
1301 | break; |
1302 | ||
1303 | default: | |
b34976b6 | 1304 | return FALSE; |
8c98ec7d AO |
1305 | } |
1306 | ||
1307 | elf_elfheader (abfd)->e_machine = code; | |
1308 | ||
b34976b6 | 1309 | return TRUE; |
8c98ec7d AO |
1310 | } |
1311 | ||
b34976b6 | 1312 | return FALSE; |
8c98ec7d | 1313 | } |
e84d6fca AM |
1314 | |
1315 | /* | |
1316 | CODE_FRAGMENT | |
1317 | ||
1318 | .struct bfd_preserve | |
1319 | .{ | |
1320 | . PTR marker; | |
1321 | . PTR tdata; | |
1322 | . flagword flags; | |
1323 | . const struct bfd_arch_info *arch_info; | |
1324 | . struct sec *sections; | |
1325 | . struct sec **section_tail; | |
1326 | . unsigned int section_count; | |
1327 | . struct bfd_hash_table section_htab; | |
1328 | .}; | |
1329 | . | |
1330 | */ | |
1331 | ||
1332 | /* | |
1333 | FUNCTION | |
1334 | bfd_preserve_save | |
1335 | ||
1336 | SYNOPSIS | |
b34976b6 | 1337 | bfd_boolean bfd_preserve_save (bfd *, struct bfd_preserve *); |
e84d6fca AM |
1338 | |
1339 | DESCRIPTION | |
1340 | When testing an object for compatibility with a particular | |
1341 | target back-end, the back-end object_p function needs to set | |
1342 | up certain fields in the bfd on successfully recognizing the | |
1343 | object. This typically happens in a piecemeal fashion, with | |
1344 | failures possible at many points. On failure, the bfd is | |
1345 | supposed to be restored to its initial state, which is | |
1346 | virtually impossible. However, restoring a subset of the bfd | |
1347 | state works in practice. This function stores the subset and | |
1348 | reinitializes the bfd. | |
1349 | ||
1350 | */ | |
1351 | ||
b34976b6 | 1352 | bfd_boolean |
e84d6fca AM |
1353 | bfd_preserve_save (abfd, preserve) |
1354 | bfd *abfd; | |
1355 | struct bfd_preserve *preserve; | |
1356 | { | |
1357 | preserve->tdata = abfd->tdata.any; | |
1358 | preserve->arch_info = abfd->arch_info; | |
1359 | preserve->flags = abfd->flags; | |
e84d6fca AM |
1360 | preserve->sections = abfd->sections; |
1361 | preserve->section_tail = abfd->section_tail; | |
1362 | preserve->section_count = abfd->section_count; | |
1363 | preserve->section_htab = abfd->section_htab; | |
1364 | ||
1365 | if (! bfd_hash_table_init (&abfd->section_htab, bfd_section_hash_newfunc)) | |
b34976b6 | 1366 | return FALSE; |
e84d6fca AM |
1367 | |
1368 | abfd->tdata.any = NULL; | |
1369 | abfd->arch_info = &bfd_default_arch_struct; | |
3ae41454 | 1370 | abfd->flags &= BFD_IN_MEMORY; |
e84d6fca AM |
1371 | abfd->sections = NULL; |
1372 | abfd->section_tail = &abfd->sections; | |
1373 | abfd->section_count = 0; | |
1374 | ||
b34976b6 | 1375 | return TRUE; |
e84d6fca AM |
1376 | } |
1377 | ||
1378 | /* | |
1379 | FUNCTION | |
1380 | bfd_preserve_restore | |
1381 | ||
1382 | SYNOPSIS | |
1383 | void bfd_preserve_restore (bfd *, struct bfd_preserve *); | |
1384 | ||
1385 | DESCRIPTION | |
1386 | This function restores bfd state saved by bfd_preserve_save. | |
1387 | If MARKER is non-NULL in struct bfd_preserve then that block | |
1388 | and all subsequently bfd_alloc'd memory is freed. | |
1389 | ||
1390 | */ | |
1391 | ||
1392 | void | |
1393 | bfd_preserve_restore (abfd, preserve) | |
1394 | bfd *abfd; | |
1395 | struct bfd_preserve *preserve; | |
1396 | { | |
1397 | bfd_hash_table_free (&abfd->section_htab); | |
1398 | ||
1399 | abfd->tdata.any = preserve->tdata; | |
1400 | abfd->arch_info = preserve->arch_info; | |
1401 | abfd->flags = preserve->flags; | |
e84d6fca AM |
1402 | abfd->section_htab = preserve->section_htab; |
1403 | abfd->sections = preserve->sections; | |
1404 | abfd->section_tail = preserve->section_tail; | |
1405 | abfd->section_count = preserve->section_count; | |
1406 | ||
1407 | /* bfd_release frees all memory more recently bfd_alloc'd than | |
1408 | its arg, as well as its arg. */ | |
1409 | if (preserve->marker != NULL) | |
1410 | { | |
1411 | bfd_release (abfd, preserve->marker); | |
1412 | preserve->marker = NULL; | |
1413 | } | |
1414 | } | |
1415 | ||
1416 | /* | |
1417 | FUNCTION | |
1418 | bfd_preserve_finish | |
1419 | ||
1420 | SYNOPSIS | |
1421 | void bfd_preserve_finish (bfd *, struct bfd_preserve *); | |
1422 | ||
1423 | DESCRIPTION | |
1424 | This function should be called when the bfd state saved by | |
1425 | bfd_preserve_save is no longer needed. ie. when the back-end | |
1426 | object_p function returns with success. | |
1427 | ||
1428 | */ | |
1429 | ||
1430 | void | |
1431 | bfd_preserve_finish (abfd, preserve) | |
1432 | bfd *abfd ATTRIBUTE_UNUSED; | |
1433 | struct bfd_preserve *preserve; | |
1434 | { | |
1435 | /* It would be nice to be able to free more memory here, eg. old | |
1436 | tdata, but that's not possible since these blocks are sitting | |
1437 | inside bfd_alloc'd memory. The section hash is on a separate | |
1438 | objalloc. */ | |
1439 | bfd_hash_table_free (&preserve->section_htab); | |
1440 | } |