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, |
6e3d6dc1 | 3 | 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 |
252b5132 RH |
4 | Free Software Foundation, Inc. |
5 | Written by Cygnus Support. | |
6 | ||
3af9a47b | 7 | This file is part of BFD, the Binary File Descriptor library. |
252b5132 | 8 | |
3af9a47b NC |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
cd123cb7 | 11 | the Free Software Foundation; either version 3 of the License, or |
3af9a47b | 12 | (at your option) any later version. |
252b5132 | 13 | |
3af9a47b NC |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
252b5132 | 18 | |
3af9a47b NC |
19 | You should have received a copy of the GNU General Public License |
20 | along with this program; if not, write to the Free Software | |
cd123cb7 NC |
21 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
22 | MA 02110-1301, USA. */ | |
252b5132 RH |
23 | |
24 | /* | |
25 | SECTION | |
26 | <<typedef bfd>> | |
27 | ||
28 | A BFD has type <<bfd>>; objects of this type are the | |
29 | cornerstone of any application using BFD. Using BFD | |
30 | consists of making references though the BFD and to data in the BFD. | |
31 | ||
32 | Here is the structure that defines the type <<bfd>>. It | |
33 | contains the major data about the file and pointers | |
34 | to the rest of the data. | |
35 | ||
36 | CODE_FRAGMENT | |
37 | . | |
c2852e88 | 38 | .struct bfd |
252b5132 | 39 | .{ |
52b69c9e AO |
40 | . {* A unique identifier of the BFD *} |
41 | . unsigned int id; | |
42 | . | |
b5f79c76 NC |
43 | . {* The filename the application opened the BFD with. *} |
44 | . const char *filename; | |
252b5132 | 45 | . |
b5f79c76 NC |
46 | . {* A pointer to the target jump table. *} |
47 | . const struct bfd_target *xvec; | |
252b5132 | 48 | . |
40838a72 AC |
49 | . {* The IOSTREAM, and corresponding IO vector that provide access |
50 | . to the file backing the BFD. *} | |
c58b9523 | 51 | . void *iostream; |
40838a72 | 52 | . const struct bfd_iovec *iovec; |
b5f79c76 NC |
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. *} | |
2ce40c65 | 65 | . struct bfd *lru_prev, *lru_next; |
b5f79c76 NC |
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. *} | |
198beae2 | 113 | . struct bfd_section *sections; |
b5f79c76 | 114 | . |
5daa8fe7 L |
115 | . {* The last section on the section list. *} |
116 | . struct bfd_section *section_last; | |
b5f79c76 NC |
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). *} | |
fc0a2244 | 129 | . struct bfd_symbol **outsymbols; |
b5f79c76 | 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 | . | |
b58f81ae DJ |
137 | . {* Flag set if symbols from this BFD should not be exported. *} |
138 | . bfd_boolean no_export; | |
139 | . | |
b5f79c76 | 140 | . {* Stuff only useful for archives. *} |
c58b9523 | 141 | . void *arelt_data; |
2ce40c65 | 142 | . struct bfd *my_archive; {* The containing archive BFD. *} |
cc481421 | 143 | . struct bfd *archive_next; {* The next BFD in the archive. *} |
2ce40c65 | 144 | . struct bfd *archive_head; {* The first BFD in the archive. *} |
b34976b6 | 145 | . bfd_boolean has_armap; |
252b5132 | 146 | . |
b5f79c76 | 147 | . {* A chain of BFD structures involved in a link. *} |
2ce40c65 | 148 | . struct bfd *link_next; |
b5f79c76 NC |
149 | . |
150 | . {* A field used by _bfd_generic_link_add_archive_symbols. This will | |
151 | . be used only for archive elements. *} | |
152 | . int archive_pass; | |
153 | . | |
154 | . {* Used by the back end to hold private data. *} | |
155 | . union | |
156 | . { | |
252b5132 RH |
157 | . struct aout_data_struct *aout_data; |
158 | . struct artdata *aout_ar_data; | |
159 | . struct _oasys_data *oasys_obj_data; | |
160 | . struct _oasys_ar_data *oasys_ar_data; | |
161 | . struct coff_tdata *coff_obj_data; | |
162 | . struct pe_tdata *pe_obj_data; | |
163 | . struct xcoff_tdata *xcoff_obj_data; | |
164 | . struct ecoff_tdata *ecoff_obj_data; | |
165 | . struct ieee_data_struct *ieee_data; | |
166 | . struct ieee_ar_data_struct *ieee_ar_data; | |
167 | . struct srec_data_struct *srec_data; | |
168 | . struct ihex_data_struct *ihex_data; | |
169 | . struct tekhex_data_struct *tekhex_data; | |
170 | . struct elf_obj_tdata *elf_obj_data; | |
171 | . struct nlm_obj_tdata *nlm_obj_data; | |
172 | . struct bout_data_struct *bout_data; | |
3c3bdf30 | 173 | . struct mmo_data_struct *mmo_data; |
252b5132 RH |
174 | . struct sun_core_struct *sun_core_data; |
175 | . struct sco5_core_struct *sco5_core_data; | |
176 | . struct trad_core_struct *trad_core_data; | |
177 | . struct som_data_struct *som_data; | |
178 | . struct hpux_core_struct *hpux_core_data; | |
179 | . struct hppabsd_core_struct *hppabsd_core_data; | |
180 | . struct sgi_core_struct *sgi_core_data; | |
181 | . struct lynx_core_struct *lynx_core_data; | |
182 | . struct osf_core_struct *osf_core_data; | |
183 | . struct cisco_core_struct *cisco_core_data; | |
184 | . struct versados_data_struct *versados_data; | |
185 | . struct netbsd_core_struct *netbsd_core_data; | |
3af9a47b NC |
186 | . struct mach_o_data_struct *mach_o_data; |
187 | . struct mach_o_fat_data_struct *mach_o_fat_data; | |
188 | . struct bfd_pef_data_struct *pef_data; | |
189 | . struct bfd_pef_xlib_data_struct *pef_xlib_data; | |
190 | . struct bfd_sym_data_struct *sym_data; | |
c58b9523 | 191 | . void *any; |
b5f79c76 NC |
192 | . } |
193 | . tdata; | |
aebad5fe | 194 | . |
b5f79c76 | 195 | . {* Used by the application to hold private data. *} |
c58b9523 | 196 | . void *usrdata; |
252b5132 RH |
197 | . |
198 | . {* Where all the allocated stuff under this BFD goes. This is a | |
c58b9523 AM |
199 | . struct objalloc *, but we use void * to avoid requiring the inclusion |
200 | . of objalloc.h. *} | |
201 | . void *memory; | |
252b5132 RH |
202 | .}; |
203 | . | |
204 | */ | |
205 | ||
252b5132 | 206 | #include "sysdep.h" |
252b5132 | 207 | #include <stdarg.h> |
3db64b00 AM |
208 | #include "bfd.h" |
209 | #include "bfdver.h" | |
252b5132 | 210 | #include "libiberty.h" |
3fad56a3 | 211 | #include "demangle.h" |
3882b010 | 212 | #include "safe-ctype.h" |
252b5132 RH |
213 | #include "bfdlink.h" |
214 | #include "libbfd.h" | |
215 | #include "coff/internal.h" | |
216 | #include "coff/sym.h" | |
217 | #include "libcoff.h" | |
218 | #include "libecoff.h" | |
219 | #undef obj_symbols | |
220 | #include "elf-bfd.h" | |
3168356f AM |
221 | |
222 | #ifndef EXIT_FAILURE | |
223 | #define EXIT_FAILURE 1 | |
224 | #endif | |
225 | ||
252b5132 RH |
226 | \f |
227 | /* provide storage for subsystem, stack and heap data which may have been | |
228 | passed in on the command line. Ld puts this data into a bfd_link_info | |
229 | struct which ultimately gets passed in to the bfd. When it arrives, copy | |
230 | it to the following struct so that the data will be available in coffcode.h | |
231 | where it is needed. The typedef's used are defined in bfd.h */ | |
252b5132 RH |
232 | \f |
233 | /* | |
234 | SECTION | |
235 | Error reporting | |
236 | ||
237 | Most BFD functions return nonzero on success (check their | |
238 | individual documentation for precise semantics). On an error, | |
239 | they call <<bfd_set_error>> to set an error condition that callers | |
240 | can check by calling <<bfd_get_error>>. | |
241 | If that returns <<bfd_error_system_call>>, then check | |
242 | <<errno>>. | |
243 | ||
244 | The easiest way to report a BFD error to the user is to | |
245 | use <<bfd_perror>>. | |
246 | ||
247 | SUBSECTION | |
248 | Type <<bfd_error_type>> | |
249 | ||
250 | The values returned by <<bfd_get_error>> are defined by the | |
251 | enumerated type <<bfd_error_type>>. | |
252 | ||
253 | CODE_FRAGMENT | |
254 | . | |
255 | .typedef enum bfd_error | |
256 | .{ | |
257 | . bfd_error_no_error = 0, | |
258 | . bfd_error_system_call, | |
259 | . bfd_error_invalid_target, | |
260 | . bfd_error_wrong_format, | |
3619ad04 | 261 | . bfd_error_wrong_object_format, |
252b5132 RH |
262 | . bfd_error_invalid_operation, |
263 | . bfd_error_no_memory, | |
264 | . bfd_error_no_symbols, | |
265 | . bfd_error_no_armap, | |
266 | . bfd_error_no_more_archived_files, | |
267 | . bfd_error_malformed_archive, | |
268 | . bfd_error_file_not_recognized, | |
269 | . bfd_error_file_ambiguously_recognized, | |
270 | . bfd_error_no_contents, | |
271 | . bfd_error_nonrepresentable_section, | |
272 | . bfd_error_no_debug_section, | |
273 | . bfd_error_bad_value, | |
274 | . bfd_error_file_truncated, | |
275 | . bfd_error_file_too_big, | |
ffda70fc | 276 | . bfd_error_on_input, |
252b5132 | 277 | . bfd_error_invalid_error_code |
b5f79c76 NC |
278 | .} |
279 | .bfd_error_type; | |
252b5132 RH |
280 | . |
281 | */ | |
282 | ||
283 | static bfd_error_type bfd_error = bfd_error_no_error; | |
ffda70fc AM |
284 | static bfd *input_bfd = NULL; |
285 | static bfd_error_type input_error = bfd_error_no_error; | |
252b5132 | 286 | |
55ab10f0 NC |
287 | const char *const bfd_errmsgs[] = |
288 | { | |
289 | N_("No error"), | |
290 | N_("System call error"), | |
291 | N_("Invalid bfd target"), | |
292 | N_("File in wrong format"), | |
3619ad04 | 293 | N_("Archive object file in wrong format"), |
55ab10f0 NC |
294 | N_("Invalid operation"), |
295 | N_("Memory exhausted"), | |
296 | N_("No symbols"), | |
297 | N_("Archive has no index; run ranlib to add one"), | |
298 | N_("No more archived files"), | |
299 | N_("Malformed archive"), | |
300 | N_("File format not recognized"), | |
301 | N_("File format is ambiguous"), | |
302 | N_("Section has no contents"), | |
303 | N_("Nonrepresentable section on output"), | |
304 | N_("Symbol needs debug section which does not exist"), | |
305 | N_("Bad value"), | |
306 | N_("File truncated"), | |
307 | N_("File too big"), | |
ffda70fc | 308 | N_("Error reading %s: %s"), |
55ab10f0 NC |
309 | N_("#<Invalid error code>") |
310 | }; | |
252b5132 RH |
311 | |
312 | /* | |
313 | FUNCTION | |
314 | bfd_get_error | |
315 | ||
316 | SYNOPSIS | |
317 | bfd_error_type bfd_get_error (void); | |
318 | ||
319 | DESCRIPTION | |
320 | Return the current BFD error condition. | |
321 | */ | |
322 | ||
323 | bfd_error_type | |
c58b9523 | 324 | bfd_get_error (void) |
252b5132 RH |
325 | { |
326 | return bfd_error; | |
327 | } | |
328 | ||
329 | /* | |
330 | FUNCTION | |
331 | bfd_set_error | |
332 | ||
333 | SYNOPSIS | |
ffda70fc | 334 | void bfd_set_error (bfd_error_type error_tag, ...); |
252b5132 RH |
335 | |
336 | DESCRIPTION | |
337 | Set the BFD error condition to be @var{error_tag}. | |
ffda70fc AM |
338 | If @var{error_tag} is bfd_error_on_input, then this function |
339 | takes two more parameters, the input bfd where the error | |
340 | occurred, and the bfd_error_type error. | |
252b5132 RH |
341 | */ |
342 | ||
343 | void | |
ffda70fc | 344 | bfd_set_error (bfd_error_type error_tag, ...) |
252b5132 RH |
345 | { |
346 | bfd_error = error_tag; | |
ffda70fc AM |
347 | if (error_tag == bfd_error_on_input) |
348 | { | |
349 | /* This is an error that occurred during bfd_close when | |
350 | writing an archive, but on one of the input files. */ | |
351 | va_list ap; | |
352 | ||
353 | va_start (ap, error_tag); | |
354 | input_bfd = va_arg (ap, bfd *); | |
355 | input_error = va_arg (ap, int); | |
356 | if (input_error >= bfd_error_on_input) | |
357 | abort (); | |
358 | va_end (ap); | |
359 | } | |
252b5132 RH |
360 | } |
361 | ||
362 | /* | |
363 | FUNCTION | |
364 | bfd_errmsg | |
365 | ||
366 | SYNOPSIS | |
55ab10f0 | 367 | const char *bfd_errmsg (bfd_error_type error_tag); |
252b5132 RH |
368 | |
369 | DESCRIPTION | |
370 | Return a string describing the error @var{error_tag}, or | |
371 | the system error if @var{error_tag} is <<bfd_error_system_call>>. | |
372 | */ | |
373 | ||
55ab10f0 | 374 | const char * |
c58b9523 | 375 | bfd_errmsg (bfd_error_type error_tag) |
252b5132 RH |
376 | { |
377 | #ifndef errno | |
378 | extern int errno; | |
379 | #endif | |
ffda70fc AM |
380 | if (error_tag == bfd_error_on_input) |
381 | { | |
382 | char *buf; | |
383 | const char *msg = bfd_errmsg (input_error); | |
384 | ||
385 | if (asprintf (&buf, _(bfd_errmsgs [error_tag]), input_bfd->filename, msg) | |
386 | != -1) | |
387 | return buf; | |
388 | ||
389 | /* Ick, what to do on out of memory? */ | |
390 | return msg; | |
391 | } | |
392 | ||
252b5132 RH |
393 | if (error_tag == bfd_error_system_call) |
394 | return xstrerror (errno); | |
395 | ||
c58b9523 AM |
396 | if (error_tag > bfd_error_invalid_error_code) |
397 | error_tag = bfd_error_invalid_error_code; /* sanity check */ | |
252b5132 | 398 | |
c58b9523 | 399 | return _(bfd_errmsgs [error_tag]); |
252b5132 RH |
400 | } |
401 | ||
402 | /* | |
403 | FUNCTION | |
404 | bfd_perror | |
405 | ||
406 | SYNOPSIS | |
55ab10f0 | 407 | void bfd_perror (const char *message); |
252b5132 RH |
408 | |
409 | DESCRIPTION | |
410 | Print to the standard error stream a string describing the | |
411 | last BFD error that occurred, or the last system error if | |
412 | the last BFD error was a system call failure. If @var{message} | |
413 | is non-NULL and non-empty, the error string printed is preceded | |
414 | by @var{message}, a colon, and a space. It is followed by a newline. | |
415 | */ | |
416 | ||
417 | void | |
c58b9523 | 418 | bfd_perror (const char *message) |
252b5132 | 419 | { |
ffda70fc AM |
420 | if (message == NULL || *message == '\0') |
421 | fprintf (stderr, "%s\n", bfd_errmsg (bfd_get_error ())); | |
55ab10f0 | 422 | else |
ffda70fc | 423 | fprintf (stderr, "%s: %s\n", message, bfd_errmsg (bfd_get_error ())); |
252b5132 RH |
424 | } |
425 | ||
426 | /* | |
427 | SUBSECTION | |
428 | BFD error handler | |
429 | ||
430 | Some BFD functions want to print messages describing the | |
431 | problem. They call a BFD error handler function. This | |
5c4491d3 | 432 | function may be overridden by the program. |
252b5132 RH |
433 | |
434 | The BFD error handler acts like printf. | |
435 | ||
436 | CODE_FRAGMENT | |
437 | . | |
c58b9523 | 438 | .typedef void (*bfd_error_handler_type) (const char *, ...); |
252b5132 RH |
439 | . |
440 | */ | |
441 | ||
442 | /* The program name used when printing BFD error messages. */ | |
443 | ||
444 | static const char *_bfd_error_program_name; | |
445 | ||
d003868e AM |
446 | /* This is the default routine to handle BFD error messages. |
447 | Like fprintf (stderr, ...), but also handles some extra format specifiers. | |
448 | ||
449 | %A section name from section. For group components, print group name too. | |
450 | %B file name from bfd. For archive components, prints archive too. | |
d07676f8 NC |
451 | |
452 | Note - because these two extra format specifiers require special handling | |
453 | they are scanned for and processed in this function, before calling | |
454 | vfprintf. This means that the *arguments* for these format specifiers | |
455 | must be the first ones in the variable argument list, regardless of where | |
456 | the specifiers appear in the format string. Thus for example calling | |
457 | this function with a format string of: | |
458 | ||
459 | "blah %s blah %A blah %d blah %B" | |
460 | ||
461 | would involve passing the arguments as: | |
462 | ||
463 | "blah %s blah %A blah %d blah %B", | |
464 | asection_for_the_%A, | |
465 | bfd_for_the_%B, | |
466 | string_for_the_%s, | |
467 | integer_for_the_%d); | |
d003868e | 468 | */ |
252b5132 | 469 | |
185d09ad | 470 | void |
d003868e | 471 | _bfd_default_error_handler (const char *fmt, ...) |
252b5132 | 472 | { |
d003868e AM |
473 | va_list ap; |
474 | char *bufp; | |
475 | const char *new_fmt, *p; | |
476 | size_t avail = 1000; | |
477 | char buf[1000]; | |
c58b9523 | 478 | |
0bc43230 AM |
479 | /* PR 4992: Don't interrupt output being sent to stdout. */ |
480 | fflush (stdout); | |
481 | ||
252b5132 RH |
482 | if (_bfd_error_program_name != NULL) |
483 | fprintf (stderr, "%s: ", _bfd_error_program_name); | |
484 | else | |
485 | fprintf (stderr, "BFD: "); | |
486 | ||
d003868e AM |
487 | va_start (ap, fmt); |
488 | new_fmt = fmt; | |
489 | bufp = buf; | |
490 | ||
491 | /* Reserve enough space for the existing format string. */ | |
492 | avail -= strlen (fmt) + 1; | |
493 | if (avail > 1000) | |
3168356f | 494 | _exit (EXIT_FAILURE); |
d003868e AM |
495 | |
496 | p = fmt; | |
3e540f25 | 497 | while (1) |
d003868e AM |
498 | { |
499 | char *q; | |
500 | size_t len, extra, trim; | |
501 | ||
502 | p = strchr (p, '%'); | |
503 | if (p == NULL || p[1] == '\0') | |
504 | { | |
505 | if (new_fmt == buf) | |
506 | { | |
507 | len = strlen (fmt); | |
508 | memcpy (bufp, fmt, len + 1); | |
509 | } | |
510 | break; | |
511 | } | |
512 | ||
513 | if (p[1] == 'A' || p[1] == 'B') | |
514 | { | |
515 | len = p - fmt; | |
516 | memcpy (bufp, fmt, len); | |
517 | bufp += len; | |
518 | fmt = p + 2; | |
519 | new_fmt = buf; | |
520 | ||
521 | /* If we run out of space, tough, you lose your ridiculously | |
522 | long file or section name. It's not safe to try to alloc | |
523 | memory here; We might be printing an out of memory message. */ | |
524 | if (avail == 0) | |
525 | { | |
526 | *bufp++ = '*'; | |
527 | *bufp++ = '*'; | |
528 | *bufp = '\0'; | |
529 | } | |
530 | else | |
531 | { | |
532 | if (p[1] == 'B') | |
533 | { | |
534 | bfd *abfd = va_arg (ap, bfd *); | |
d07676f8 NC |
535 | |
536 | if (abfd == NULL) | |
537 | /* Invoking %B with a null bfd pointer is an internal error. */ | |
538 | abort (); | |
539 | else if (abfd->my_archive) | |
d003868e AM |
540 | snprintf (bufp, avail, "%s(%s)", |
541 | abfd->my_archive->filename, abfd->filename); | |
542 | else | |
543 | snprintf (bufp, avail, "%s", abfd->filename); | |
544 | } | |
545 | else | |
546 | { | |
547 | asection *sec = va_arg (ap, asection *); | |
d07676f8 | 548 | bfd *abfd; |
d003868e AM |
549 | const char *group = NULL; |
550 | struct coff_comdat_info *ci; | |
551 | ||
d07676f8 NC |
552 | if (sec == NULL) |
553 | /* Invoking %A with a null section pointer is an internal error. */ | |
554 | abort (); | |
555 | abfd = sec->owner; | |
d003868e AM |
556 | if (abfd != NULL |
557 | && bfd_get_flavour (abfd) == bfd_target_elf_flavour | |
558 | && elf_next_in_group (sec) != NULL | |
559 | && (sec->flags & SEC_GROUP) == 0) | |
560 | group = elf_group_name (sec); | |
561 | else if (abfd != NULL | |
562 | && bfd_get_flavour (abfd) == bfd_target_coff_flavour | |
563 | && (ci = bfd_coff_get_comdat_section (sec->owner, | |
564 | sec)) != NULL) | |
565 | group = ci->name; | |
566 | if (group != NULL) | |
567 | snprintf (bufp, avail, "%s[%s]", sec->name, group); | |
568 | else | |
569 | snprintf (bufp, avail, "%s", sec->name); | |
570 | } | |
571 | len = strlen (bufp); | |
572 | avail = avail - len + 2; | |
573 | ||
574 | /* We need to replace any '%' we printed by "%%". | |
575 | First count how many. */ | |
576 | q = bufp; | |
577 | bufp += len; | |
578 | extra = 0; | |
579 | while ((q = strchr (q, '%')) != NULL) | |
580 | { | |
581 | ++q; | |
582 | ++extra; | |
583 | } | |
584 | ||
585 | /* If there isn't room, trim off the end of the string. */ | |
586 | q = bufp; | |
587 | bufp += extra; | |
588 | if (extra > avail) | |
589 | { | |
590 | trim = extra - avail; | |
591 | bufp -= trim; | |
592 | do | |
593 | { | |
594 | if (*--q == '%') | |
595 | --extra; | |
596 | } | |
597 | while (--trim != 0); | |
598 | *q = '\0'; | |
45fc9e4a | 599 | avail = extra; |
d003868e | 600 | } |
45fc9e4a | 601 | avail -= extra; |
d003868e AM |
602 | |
603 | /* Now double all '%' chars, shuffling the string as we go. */ | |
604 | while (extra != 0) | |
605 | { | |
606 | while ((q[extra] = *q) != '%') | |
607 | --q; | |
608 | q[--extra] = '%'; | |
609 | --q; | |
610 | } | |
611 | } | |
612 | } | |
613 | p = p + 2; | |
614 | } | |
615 | ||
616 | vfprintf (stderr, new_fmt, ap); | |
617 | va_end (ap); | |
252b5132 | 618 | |
d003868e | 619 | putc ('\n', stderr); |
252b5132 RH |
620 | } |
621 | ||
252b5132 RH |
622 | /* This is a function pointer to the routine which should handle BFD |
623 | error messages. It is called when a BFD routine encounters an | |
624 | error for which it wants to print a message. Going through a | |
625 | function pointer permits a program linked against BFD to intercept | |
626 | the messages and deal with them itself. */ | |
627 | ||
628 | bfd_error_handler_type _bfd_error_handler = _bfd_default_error_handler; | |
629 | ||
630 | /* | |
631 | FUNCTION | |
632 | bfd_set_error_handler | |
633 | ||
634 | SYNOPSIS | |
635 | bfd_error_handler_type bfd_set_error_handler (bfd_error_handler_type); | |
636 | ||
637 | DESCRIPTION | |
638 | Set the BFD error handler function. Returns the previous | |
639 | function. | |
640 | */ | |
641 | ||
642 | bfd_error_handler_type | |
c58b9523 | 643 | bfd_set_error_handler (bfd_error_handler_type pnew) |
252b5132 RH |
644 | { |
645 | bfd_error_handler_type pold; | |
646 | ||
647 | pold = _bfd_error_handler; | |
648 | _bfd_error_handler = pnew; | |
649 | return pold; | |
650 | } | |
651 | ||
652 | /* | |
653 | FUNCTION | |
654 | bfd_set_error_program_name | |
655 | ||
656 | SYNOPSIS | |
657 | void bfd_set_error_program_name (const char *); | |
658 | ||
659 | DESCRIPTION | |
660 | Set the program name to use when printing a BFD error. This | |
661 | is printed before the error message followed by a colon and | |
662 | space. The string must not be changed after it is passed to | |
663 | this function. | |
664 | */ | |
665 | ||
666 | void | |
c58b9523 | 667 | bfd_set_error_program_name (const char *name) |
252b5132 RH |
668 | { |
669 | _bfd_error_program_name = name; | |
670 | } | |
671 | ||
252b5132 RH |
672 | /* |
673 | FUNCTION | |
674 | bfd_get_error_handler | |
675 | ||
676 | SYNOPSIS | |
677 | bfd_error_handler_type bfd_get_error_handler (void); | |
678 | ||
679 | DESCRIPTION | |
680 | Return the BFD error handler function. | |
681 | */ | |
682 | ||
683 | bfd_error_handler_type | |
c58b9523 | 684 | bfd_get_error_handler (void) |
252b5132 RH |
685 | { |
686 | return _bfd_error_handler; | |
687 | } | |
688 | \f | |
689 | /* | |
690 | SECTION | |
1b74d094 BW |
691 | Miscellaneous |
692 | ||
693 | SUBSECTION | |
694 | Miscellaneous functions | |
252b5132 RH |
695 | */ |
696 | ||
697 | /* | |
698 | FUNCTION | |
699 | bfd_get_reloc_upper_bound | |
700 | ||
701 | SYNOPSIS | |
ed781d5d | 702 | long bfd_get_reloc_upper_bound (bfd *abfd, asection *sect); |
252b5132 RH |
703 | |
704 | DESCRIPTION | |
705 | Return the number of bytes required to store the | |
706 | relocation information associated with section @var{sect} | |
707 | attached to bfd @var{abfd}. If an error occurs, return -1. | |
708 | ||
709 | */ | |
710 | ||
252b5132 | 711 | long |
c58b9523 | 712 | bfd_get_reloc_upper_bound (bfd *abfd, sec_ptr asect) |
252b5132 | 713 | { |
55ab10f0 NC |
714 | if (abfd->format != bfd_object) |
715 | { | |
716 | bfd_set_error (bfd_error_invalid_operation); | |
717 | return -1; | |
718 | } | |
252b5132 RH |
719 | |
720 | return BFD_SEND (abfd, _get_reloc_upper_bound, (abfd, asect)); | |
721 | } | |
722 | ||
723 | /* | |
724 | FUNCTION | |
725 | bfd_canonicalize_reloc | |
726 | ||
727 | SYNOPSIS | |
728 | long bfd_canonicalize_reloc | |
c58b9523 | 729 | (bfd *abfd, asection *sec, arelent **loc, asymbol **syms); |
252b5132 RH |
730 | |
731 | DESCRIPTION | |
732 | Call the back end associated with the open BFD | |
733 | @var{abfd} and translate the external form of the relocation | |
734 | information attached to @var{sec} into the internal canonical | |
735 | form. Place the table into memory at @var{loc}, which has | |
736 | been preallocated, usually by a call to | |
737 | <<bfd_get_reloc_upper_bound>>. Returns the number of relocs, or | |
738 | -1 on error. | |
739 | ||
740 | The @var{syms} table is also needed for horrible internal magic | |
741 | reasons. | |
742 | ||
252b5132 RH |
743 | */ |
744 | long | |
c58b9523 AM |
745 | bfd_canonicalize_reloc (bfd *abfd, |
746 | sec_ptr asect, | |
747 | arelent **location, | |
748 | asymbol **symbols) | |
252b5132 | 749 | { |
55ab10f0 NC |
750 | if (abfd->format != bfd_object) |
751 | { | |
752 | bfd_set_error (bfd_error_invalid_operation); | |
753 | return -1; | |
754 | } | |
755 | ||
252b5132 RH |
756 | return BFD_SEND (abfd, _bfd_canonicalize_reloc, |
757 | (abfd, asect, location, symbols)); | |
758 | } | |
759 | ||
760 | /* | |
761 | FUNCTION | |
762 | bfd_set_reloc | |
763 | ||
764 | SYNOPSIS | |
765 | void bfd_set_reloc | |
b5f79c76 | 766 | (bfd *abfd, asection *sec, arelent **rel, unsigned int count); |
252b5132 RH |
767 | |
768 | DESCRIPTION | |
769 | Set the relocation pointer and count within | |
770 | section @var{sec} to the values @var{rel} and @var{count}. | |
771 | The argument @var{abfd} is ignored. | |
772 | ||
773 | */ | |
aebad5fe | 774 | |
252b5132 | 775 | void |
c58b9523 AM |
776 | bfd_set_reloc (bfd *ignore_abfd ATTRIBUTE_UNUSED, |
777 | sec_ptr asect, | |
778 | arelent **location, | |
779 | unsigned int count) | |
252b5132 RH |
780 | { |
781 | asect->orelocation = location; | |
782 | asect->reloc_count = count; | |
783 | } | |
784 | ||
785 | /* | |
786 | FUNCTION | |
787 | bfd_set_file_flags | |
788 | ||
789 | SYNOPSIS | |
ed781d5d | 790 | bfd_boolean bfd_set_file_flags (bfd *abfd, flagword flags); |
252b5132 RH |
791 | |
792 | DESCRIPTION | |
793 | Set the flag word in the BFD @var{abfd} to the value @var{flags}. | |
794 | ||
795 | Possible errors are: | |
796 | o <<bfd_error_wrong_format>> - The target bfd was not of object format. | |
797 | o <<bfd_error_invalid_operation>> - The target bfd was open for reading. | |
798 | o <<bfd_error_invalid_operation>> - | |
799 | The flag word contained a bit which was not applicable to the | |
800 | type of file. E.g., an attempt was made to set the <<D_PAGED>> bit | |
801 | on a BFD format which does not support demand paging. | |
802 | ||
803 | */ | |
804 | ||
b34976b6 | 805 | bfd_boolean |
c58b9523 | 806 | bfd_set_file_flags (bfd *abfd, flagword flags) |
252b5132 | 807 | { |
55ab10f0 NC |
808 | if (abfd->format != bfd_object) |
809 | { | |
810 | bfd_set_error (bfd_error_wrong_format); | |
b34976b6 | 811 | return FALSE; |
55ab10f0 | 812 | } |
252b5132 | 813 | |
55ab10f0 NC |
814 | if (bfd_read_p (abfd)) |
815 | { | |
816 | bfd_set_error (bfd_error_invalid_operation); | |
b34976b6 | 817 | return FALSE; |
55ab10f0 | 818 | } |
252b5132 RH |
819 | |
820 | bfd_get_file_flags (abfd) = flags; | |
55ab10f0 NC |
821 | if ((flags & bfd_applicable_file_flags (abfd)) != flags) |
822 | { | |
823 | bfd_set_error (bfd_error_invalid_operation); | |
b34976b6 | 824 | return FALSE; |
55ab10f0 | 825 | } |
252b5132 | 826 | |
b34976b6 | 827 | return TRUE; |
252b5132 RH |
828 | } |
829 | ||
830 | void | |
c58b9523 | 831 | bfd_assert (const char *file, int line) |
252b5132 | 832 | { |
aec2f561 AM |
833 | (*_bfd_error_handler) (_("BFD %s assertion fail %s:%d"), |
834 | BFD_VERSION_STRING, file, line); | |
252b5132 RH |
835 | } |
836 | ||
c0bed66d ILT |
837 | /* A more or less friendly abort message. In libbfd.h abort is |
838 | defined to call this function. */ | |
839 | ||
c0bed66d | 840 | void |
c58b9523 | 841 | _bfd_abort (const char *file, int line, const char *fn) |
c0bed66d ILT |
842 | { |
843 | if (fn != NULL) | |
844 | (*_bfd_error_handler) | |
aec2f561 AM |
845 | (_("BFD %s internal error, aborting at %s line %d in %s\n"), |
846 | BFD_VERSION_STRING, file, line, fn); | |
c0bed66d ILT |
847 | else |
848 | (*_bfd_error_handler) | |
391154e9 | 849 | (_("BFD %s internal error, aborting at %s line %d\n"), |
aec2f561 | 850 | BFD_VERSION_STRING, file, line); |
c0bed66d | 851 | (*_bfd_error_handler) (_("Please report this bug.\n")); |
3168356f | 852 | _exit (EXIT_FAILURE); |
c0bed66d | 853 | } |
252b5132 | 854 | |
125c4a69 NC |
855 | /* |
856 | FUNCTION | |
857 | bfd_get_arch_size | |
858 | ||
859 | SYNOPSIS | |
860 | int bfd_get_arch_size (bfd *abfd); | |
861 | ||
862 | DESCRIPTION | |
863 | Returns the architecture address size, in bits, as determined | |
864 | by the object file's format. For ELF, this information is | |
865 | included in the header. | |
866 | ||
867 | RETURNS | |
868 | Returns the arch size in bits if known, <<-1>> otherwise. | |
869 | */ | |
870 | ||
871 | int | |
c58b9523 | 872 | bfd_get_arch_size (bfd *abfd) |
125c4a69 NC |
873 | { |
874 | if (abfd->xvec->flavour == bfd_target_elf_flavour) | |
c58b9523 | 875 | return get_elf_backend_data (abfd)->s->arch_size; |
125c4a69 | 876 | |
125c4a69 NC |
877 | return -1; |
878 | } | |
879 | ||
880 | /* | |
881 | FUNCTION | |
882 | bfd_get_sign_extend_vma | |
883 | ||
884 | SYNOPSIS | |
885 | int bfd_get_sign_extend_vma (bfd *abfd); | |
886 | ||
887 | DESCRIPTION | |
888 | Indicates if the target architecture "naturally" sign extends | |
889 | an address. Some architectures implicitly sign extend address | |
890 | values when they are converted to types larger than the size | |
891 | of an address. For instance, bfd_get_start_address() will | |
892 | return an address sign extended to fill a bfd_vma when this is | |
893 | the case. | |
894 | ||
895 | RETURNS | |
896 | Returns <<1>> if the target architecture is known to sign | |
897 | extend addresses, <<0>> if the target architecture is known to | |
898 | not sign extend addresses, and <<-1>> otherwise. | |
899 | */ | |
900 | ||
901 | int | |
c58b9523 | 902 | bfd_get_sign_extend_vma (bfd *abfd) |
125c4a69 | 903 | { |
f47e5071 NC |
904 | char *name; |
905 | ||
125c4a69 | 906 | if (bfd_get_flavour (abfd) == bfd_target_elf_flavour) |
c58b9523 | 907 | return get_elf_backend_data (abfd)->sign_extend_vma; |
125c4a69 | 908 | |
f47e5071 NC |
909 | name = bfd_get_target (abfd); |
910 | ||
7148cc28 | 911 | /* Return a proper value for DJGPP & PE COFF. |
f47e5071 NC |
912 | This function is required for DWARF2 support, but there is |
913 | no place to store this information in the COFF back end. | |
914 | Should enough other COFF targets add support for DWARF2, | |
915 | a place will have to be found. Until then, this hack will do. */ | |
0112cd26 | 916 | if (CONST_STRNEQ (name, "coff-go32") |
8a7140c3 | 917 | || strcmp (name, "pe-i386") == 0 |
f0927246 | 918 | || strcmp (name, "pei-i386") == 0 |
6e3d6dc1 NC |
919 | || strcmp (name, "pe-x86-64") == 0 |
920 | || strcmp (name, "pei-x86-64") == 0 | |
7148cc28 NC |
921 | || strcmp (name, "pe-arm-wince-little") == 0 |
922 | || strcmp (name, "pei-arm-wince-little") == 0) | |
f47e5071 NC |
923 | return 1; |
924 | ||
a022216b | 925 | bfd_set_error (bfd_error_wrong_format); |
125c4a69 NC |
926 | return -1; |
927 | } | |
928 | ||
252b5132 RH |
929 | /* |
930 | FUNCTION | |
931 | bfd_set_start_address | |
932 | ||
933 | SYNOPSIS | |
ed781d5d | 934 | bfd_boolean bfd_set_start_address (bfd *abfd, bfd_vma vma); |
252b5132 RH |
935 | |
936 | DESCRIPTION | |
937 | Make @var{vma} the entry point of output BFD @var{abfd}. | |
938 | ||
939 | RETURNS | |
b34976b6 | 940 | Returns <<TRUE>> on success, <<FALSE>> otherwise. |
252b5132 RH |
941 | */ |
942 | ||
b34976b6 | 943 | bfd_boolean |
c58b9523 | 944 | bfd_set_start_address (bfd *abfd, bfd_vma vma) |
252b5132 RH |
945 | { |
946 | abfd->start_address = vma; | |
b34976b6 | 947 | return TRUE; |
252b5132 RH |
948 | } |
949 | ||
252b5132 RH |
950 | /* |
951 | FUNCTION | |
952 | bfd_get_gp_size | |
953 | ||
954 | SYNOPSIS | |
ed781d5d | 955 | unsigned int bfd_get_gp_size (bfd *abfd); |
252b5132 RH |
956 | |
957 | DESCRIPTION | |
958 | Return the maximum size of objects to be optimized using the GP | |
959 | register under MIPS ECOFF. This is typically set by the <<-G>> | |
960 | argument to the compiler, assembler or linker. | |
961 | */ | |
962 | ||
c0846b23 | 963 | unsigned int |
c58b9523 | 964 | bfd_get_gp_size (bfd *abfd) |
252b5132 RH |
965 | { |
966 | if (abfd->format == bfd_object) | |
967 | { | |
968 | if (abfd->xvec->flavour == bfd_target_ecoff_flavour) | |
969 | return ecoff_data (abfd)->gp_size; | |
970 | else if (abfd->xvec->flavour == bfd_target_elf_flavour) | |
971 | return elf_gp_size (abfd); | |
972 | } | |
973 | return 0; | |
974 | } | |
975 | ||
976 | /* | |
977 | FUNCTION | |
978 | bfd_set_gp_size | |
979 | ||
980 | SYNOPSIS | |
ed781d5d | 981 | void bfd_set_gp_size (bfd *abfd, unsigned int i); |
252b5132 RH |
982 | |
983 | DESCRIPTION | |
984 | Set the maximum size of objects to be optimized using the GP | |
985 | register under ECOFF or MIPS ELF. This is typically set by | |
986 | the <<-G>> argument to the compiler, assembler or linker. | |
987 | */ | |
988 | ||
989 | void | |
c58b9523 | 990 | bfd_set_gp_size (bfd *abfd, unsigned int i) |
252b5132 | 991 | { |
55ab10f0 | 992 | /* Don't try to set GP size on an archive or core file! */ |
252b5132 RH |
993 | if (abfd->format != bfd_object) |
994 | return; | |
55ab10f0 | 995 | |
252b5132 RH |
996 | if (abfd->xvec->flavour == bfd_target_ecoff_flavour) |
997 | ecoff_data (abfd)->gp_size = i; | |
998 | else if (abfd->xvec->flavour == bfd_target_elf_flavour) | |
999 | elf_gp_size (abfd) = i; | |
1000 | } | |
1001 | ||
1002 | /* Get the GP value. This is an internal function used by some of the | |
1003 | relocation special_function routines on targets which support a GP | |
1004 | register. */ | |
1005 | ||
1006 | bfd_vma | |
c58b9523 | 1007 | _bfd_get_gp_value (bfd *abfd) |
252b5132 | 1008 | { |
9bcf4de0 TS |
1009 | if (! abfd) |
1010 | return 0; | |
55ab10f0 NC |
1011 | if (abfd->format != bfd_object) |
1012 | return 0; | |
1013 | ||
1014 | if (abfd->xvec->flavour == bfd_target_ecoff_flavour) | |
1015 | return ecoff_data (abfd)->gp; | |
1016 | else if (abfd->xvec->flavour == bfd_target_elf_flavour) | |
1017 | return elf_gp (abfd); | |
1018 | ||
252b5132 RH |
1019 | return 0; |
1020 | } | |
1021 | ||
1022 | /* Set the GP value. */ | |
1023 | ||
1024 | void | |
c58b9523 | 1025 | _bfd_set_gp_value (bfd *abfd, bfd_vma v) |
252b5132 | 1026 | { |
9bcf4de0 | 1027 | if (! abfd) |
c2c96631 | 1028 | abort (); |
252b5132 RH |
1029 | if (abfd->format != bfd_object) |
1030 | return; | |
55ab10f0 | 1031 | |
252b5132 RH |
1032 | if (abfd->xvec->flavour == bfd_target_ecoff_flavour) |
1033 | ecoff_data (abfd)->gp = v; | |
1034 | else if (abfd->xvec->flavour == bfd_target_elf_flavour) | |
1035 | elf_gp (abfd) = v; | |
1036 | } | |
1037 | ||
1038 | /* | |
1039 | FUNCTION | |
1040 | bfd_scan_vma | |
1041 | ||
1042 | SYNOPSIS | |
ed781d5d | 1043 | bfd_vma bfd_scan_vma (const char *string, const char **end, int base); |
252b5132 RH |
1044 | |
1045 | DESCRIPTION | |
1046 | Convert, like <<strtoul>>, a numerical expression | |
1047 | @var{string} into a <<bfd_vma>> integer, and return that integer. | |
1048 | (Though without as many bells and whistles as <<strtoul>>.) | |
1049 | The expression is assumed to be unsigned (i.e., positive). | |
1050 | If given a @var{base}, it is used as the base for conversion. | |
1051 | A base of 0 causes the function to interpret the string | |
1052 | in hex if a leading "0x" or "0X" is found, otherwise | |
1053 | in octal if a leading zero is found, otherwise in decimal. | |
1054 | ||
88eaccc2 AM |
1055 | If the value would overflow, the maximum <<bfd_vma>> value is |
1056 | returned. | |
252b5132 RH |
1057 | */ |
1058 | ||
1059 | bfd_vma | |
c58b9523 | 1060 | bfd_scan_vma (const char *string, const char **end, int base) |
252b5132 RH |
1061 | { |
1062 | bfd_vma value; | |
88eaccc2 AM |
1063 | bfd_vma cutoff; |
1064 | unsigned int cutlim; | |
1065 | int overflow; | |
252b5132 RH |
1066 | |
1067 | /* Let the host do it if possible. */ | |
eb6e10cb | 1068 | if (sizeof (bfd_vma) <= sizeof (unsigned long)) |
c58b9523 | 1069 | return strtoul (string, (char **) end, base); |
252b5132 | 1070 | |
49c97a80 ILT |
1071 | #ifdef HAVE_STRTOULL |
1072 | if (sizeof (bfd_vma) <= sizeof (unsigned long long)) | |
1073 | return strtoull (string, (char **) end, base); | |
1074 | #endif | |
1075 | ||
252b5132 RH |
1076 | if (base == 0) |
1077 | { | |
1078 | if (string[0] == '0') | |
1079 | { | |
1080 | if ((string[1] == 'x') || (string[1] == 'X')) | |
1081 | base = 16; | |
252b5132 RH |
1082 | else |
1083 | base = 8; | |
1084 | } | |
252b5132 | 1085 | } |
55ab10f0 | 1086 | |
88eaccc2 AM |
1087 | if ((base < 2) || (base > 36)) |
1088 | base = 10; | |
1089 | ||
1090 | if (base == 16 | |
1091 | && string[0] == '0' | |
1092 | && (string[1] == 'x' || string[1] == 'X') | |
1093 | && ISXDIGIT (string[2])) | |
1094 | { | |
1095 | string += 2; | |
1096 | } | |
aebad5fe | 1097 | |
88eaccc2 AM |
1098 | cutoff = (~ (bfd_vma) 0) / (bfd_vma) base; |
1099 | cutlim = (~ (bfd_vma) 0) % (bfd_vma) base; | |
1100 | value = 0; | |
1101 | overflow = 0; | |
1102 | while (1) | |
1103 | { | |
1104 | unsigned int digit; | |
1105 | ||
1106 | digit = *string; | |
1107 | if (ISDIGIT (digit)) | |
1108 | digit = digit - '0'; | |
1109 | else if (ISALPHA (digit)) | |
1110 | digit = TOUPPER (digit) - 'A' + 10; | |
1111 | else | |
1112 | break; | |
1113 | if (digit >= (unsigned int) base) | |
1114 | break; | |
1115 | if (value > cutoff || (value == cutoff && digit > cutlim)) | |
1116 | overflow = 1; | |
1117 | value = value * base + digit; | |
1118 | ++string; | |
1119 | } | |
252b5132 | 1120 | |
88eaccc2 AM |
1121 | if (overflow) |
1122 | value = ~ (bfd_vma) 0; | |
252b5132 | 1123 | |
88eaccc2 AM |
1124 | if (end != NULL) |
1125 | *end = string; | |
252b5132 RH |
1126 | |
1127 | return value; | |
1128 | } | |
1129 | ||
80fccad2 BW |
1130 | /* |
1131 | FUNCTION | |
1132 | bfd_copy_private_header_data | |
1133 | ||
1134 | SYNOPSIS | |
1135 | bfd_boolean bfd_copy_private_header_data (bfd *ibfd, bfd *obfd); | |
1136 | ||
1137 | DESCRIPTION | |
1138 | Copy private BFD header information from the BFD @var{ibfd} to the | |
1139 | the BFD @var{obfd}. This copies information that may require | |
1140 | sections to exist, but does not require symbol tables. Return | |
1141 | <<true>> on success, <<false>> on error. | |
1142 | Possible error returns are: | |
1143 | ||
1144 | o <<bfd_error_no_memory>> - | |
1145 | Not enough memory exists to create private data for @var{obfd}. | |
1146 | ||
1147 | .#define bfd_copy_private_header_data(ibfd, obfd) \ | |
1148 | . BFD_SEND (obfd, _bfd_copy_private_header_data, \ | |
1149 | . (ibfd, obfd)) | |
1150 | ||
1151 | */ | |
1152 | ||
252b5132 RH |
1153 | /* |
1154 | FUNCTION | |
1155 | bfd_copy_private_bfd_data | |
1156 | ||
1157 | SYNOPSIS | |
ed781d5d | 1158 | bfd_boolean bfd_copy_private_bfd_data (bfd *ibfd, bfd *obfd); |
252b5132 RH |
1159 | |
1160 | DESCRIPTION | |
aebad5fe | 1161 | Copy private BFD information from the BFD @var{ibfd} to the |
b34976b6 | 1162 | the BFD @var{obfd}. Return <<TRUE>> on success, <<FALSE>> on error. |
252b5132 RH |
1163 | Possible error returns are: |
1164 | ||
1165 | o <<bfd_error_no_memory>> - | |
1166 | Not enough memory exists to create private data for @var{obfd}. | |
1167 | ||
1168 | .#define bfd_copy_private_bfd_data(ibfd, obfd) \ | |
1169 | . BFD_SEND (obfd, _bfd_copy_private_bfd_data, \ | |
1170 | . (ibfd, obfd)) | |
1171 | ||
1172 | */ | |
1173 | ||
1174 | /* | |
1175 | FUNCTION | |
1176 | bfd_merge_private_bfd_data | |
1177 | ||
1178 | SYNOPSIS | |
ed781d5d | 1179 | bfd_boolean bfd_merge_private_bfd_data (bfd *ibfd, bfd *obfd); |
252b5132 RH |
1180 | |
1181 | DESCRIPTION | |
aebad5fe | 1182 | Merge private BFD information from the BFD @var{ibfd} to the |
b34976b6 AM |
1183 | the output file BFD @var{obfd} when linking. Return <<TRUE>> |
1184 | on success, <<FALSE>> on error. Possible error returns are: | |
252b5132 RH |
1185 | |
1186 | o <<bfd_error_no_memory>> - | |
1187 | Not enough memory exists to create private data for @var{obfd}. | |
1188 | ||
1189 | .#define bfd_merge_private_bfd_data(ibfd, obfd) \ | |
1190 | . BFD_SEND (obfd, _bfd_merge_private_bfd_data, \ | |
1191 | . (ibfd, obfd)) | |
1192 | ||
1193 | */ | |
1194 | ||
1195 | /* | |
1196 | FUNCTION | |
1197 | bfd_set_private_flags | |
1198 | ||
1199 | SYNOPSIS | |
ed781d5d | 1200 | bfd_boolean bfd_set_private_flags (bfd *abfd, flagword flags); |
252b5132 RH |
1201 | |
1202 | DESCRIPTION | |
1203 | Set private BFD flag information in the BFD @var{abfd}. | |
b34976b6 | 1204 | Return <<TRUE>> on success, <<FALSE>> on error. Possible error |
252b5132 RH |
1205 | returns are: |
1206 | ||
1207 | o <<bfd_error_no_memory>> - | |
1208 | Not enough memory exists to create private data for @var{obfd}. | |
1209 | ||
1210 | .#define bfd_set_private_flags(abfd, flags) \ | |
ed781d5d | 1211 | . BFD_SEND (abfd, _bfd_set_private_flags, (abfd, flags)) |
252b5132 RH |
1212 | |
1213 | */ | |
1214 | ||
1215 | /* | |
1216 | FUNCTION | |
ed781d5d | 1217 | Other functions |
252b5132 RH |
1218 | |
1219 | DESCRIPTION | |
ed781d5d | 1220 | The following functions exist but have not yet been documented. |
252b5132 | 1221 | |
a6b96beb AM |
1222 | .#define bfd_sizeof_headers(abfd, info) \ |
1223 | . BFD_SEND (abfd, _bfd_sizeof_headers, (abfd, info)) | |
252b5132 RH |
1224 | . |
1225 | .#define bfd_find_nearest_line(abfd, sec, syms, off, file, func, line) \ | |
ed781d5d NC |
1226 | . BFD_SEND (abfd, _bfd_find_nearest_line, \ |
1227 | . (abfd, sec, syms, off, file, func, line)) | |
252b5132 | 1228 | . |
5420f73d L |
1229 | .#define bfd_find_line(abfd, syms, sym, file, line) \ |
1230 | . BFD_SEND (abfd, _bfd_find_line, \ | |
1231 | . (abfd, syms, sym, file, line)) | |
1232 | . | |
4ab527b0 FF |
1233 | .#define bfd_find_inliner_info(abfd, file, func, line) \ |
1234 | . BFD_SEND (abfd, _bfd_find_inliner_info, \ | |
1235 | . (abfd, file, func, line)) | |
1236 | . | |
252b5132 | 1237 | .#define bfd_debug_info_start(abfd) \ |
ed781d5d | 1238 | . BFD_SEND (abfd, _bfd_debug_info_start, (abfd)) |
252b5132 RH |
1239 | . |
1240 | .#define bfd_debug_info_end(abfd) \ | |
ed781d5d | 1241 | . BFD_SEND (abfd, _bfd_debug_info_end, (abfd)) |
252b5132 RH |
1242 | . |
1243 | .#define bfd_debug_info_accumulate(abfd, section) \ | |
ed781d5d | 1244 | . BFD_SEND (abfd, _bfd_debug_info_accumulate, (abfd, section)) |
252b5132 RH |
1245 | . |
1246 | .#define bfd_stat_arch_elt(abfd, stat) \ | |
ed781d5d | 1247 | . BFD_SEND (abfd, _bfd_stat_arch_elt,(abfd, stat)) |
252b5132 RH |
1248 | . |
1249 | .#define bfd_update_armap_timestamp(abfd) \ | |
ed781d5d | 1250 | . BFD_SEND (abfd, _bfd_update_armap_timestamp, (abfd)) |
252b5132 RH |
1251 | . |
1252 | .#define bfd_set_arch_mach(abfd, arch, mach)\ | |
ed781d5d | 1253 | . BFD_SEND ( abfd, _bfd_set_arch_mach, (abfd, arch, mach)) |
252b5132 RH |
1254 | . |
1255 | .#define bfd_relax_section(abfd, section, link_info, again) \ | |
1256 | . BFD_SEND (abfd, _bfd_relax_section, (abfd, section, link_info, again)) | |
1257 | . | |
1258 | .#define bfd_gc_sections(abfd, link_info) \ | |
1259 | . BFD_SEND (abfd, _bfd_gc_sections, (abfd, link_info)) | |
8550eb6e JJ |
1260 | . |
1261 | .#define bfd_merge_sections(abfd, link_info) \ | |
1262 | . BFD_SEND (abfd, _bfd_merge_sections, (abfd, link_info)) | |
252b5132 | 1263 | . |
72adc230 AM |
1264 | .#define bfd_is_group_section(abfd, sec) \ |
1265 | . BFD_SEND (abfd, _bfd_is_group_section, (abfd, sec)) | |
1266 | . | |
e61463e1 AM |
1267 | .#define bfd_discard_group(abfd, sec) \ |
1268 | . BFD_SEND (abfd, _bfd_discard_group, (abfd, sec)) | |
1269 | . | |
252b5132 RH |
1270 | .#define bfd_link_hash_table_create(abfd) \ |
1271 | . BFD_SEND (abfd, _bfd_link_hash_table_create, (abfd)) | |
1272 | . | |
e2d34d7d DJ |
1273 | .#define bfd_link_hash_table_free(abfd, hash) \ |
1274 | . BFD_SEND (abfd, _bfd_link_hash_table_free, (hash)) | |
1275 | . | |
252b5132 RH |
1276 | .#define bfd_link_add_symbols(abfd, info) \ |
1277 | . BFD_SEND (abfd, _bfd_link_add_symbols, (abfd, info)) | |
1278 | . | |
1449d79b | 1279 | .#define bfd_link_just_syms(abfd, sec, info) \ |
2d653fc7 AM |
1280 | . BFD_SEND (abfd, _bfd_link_just_syms, (sec, info)) |
1281 | . | |
252b5132 RH |
1282 | .#define bfd_final_link(abfd, info) \ |
1283 | . BFD_SEND (abfd, _bfd_final_link, (abfd, info)) | |
1284 | . | |
1285 | .#define bfd_free_cached_info(abfd) \ | |
1286 | . BFD_SEND (abfd, _bfd_free_cached_info, (abfd)) | |
1287 | . | |
1288 | .#define bfd_get_dynamic_symtab_upper_bound(abfd) \ | |
1289 | . BFD_SEND (abfd, _bfd_get_dynamic_symtab_upper_bound, (abfd)) | |
1290 | . | |
1291 | .#define bfd_print_private_bfd_data(abfd, file)\ | |
1292 | . BFD_SEND (abfd, _bfd_print_private_bfd_data, (abfd, file)) | |
1293 | . | |
1294 | .#define bfd_canonicalize_dynamic_symtab(abfd, asymbols) \ | |
1295 | . BFD_SEND (abfd, _bfd_canonicalize_dynamic_symtab, (abfd, asymbols)) | |
1296 | . | |
c9727e01 AM |
1297 | .#define bfd_get_synthetic_symtab(abfd, count, syms, dyncount, dynsyms, ret) \ |
1298 | . BFD_SEND (abfd, _bfd_get_synthetic_symtab, (abfd, count, syms, \ | |
1299 | . dyncount, dynsyms, ret)) | |
4c45e5c9 | 1300 | . |
252b5132 RH |
1301 | .#define bfd_get_dynamic_reloc_upper_bound(abfd) \ |
1302 | . BFD_SEND (abfd, _bfd_get_dynamic_reloc_upper_bound, (abfd)) | |
1303 | . | |
1304 | .#define bfd_canonicalize_dynamic_reloc(abfd, arels, asyms) \ | |
1305 | . BFD_SEND (abfd, _bfd_canonicalize_dynamic_reloc, (abfd, arels, asyms)) | |
1306 | . | |
1307 | .extern bfd_byte *bfd_get_relocated_section_contents | |
c58b9523 AM |
1308 | . (bfd *, struct bfd_link_info *, struct bfd_link_order *, bfd_byte *, |
1309 | . bfd_boolean, asymbol **); | |
252b5132 RH |
1310 | . |
1311 | ||
1312 | */ | |
1313 | ||
1314 | bfd_byte * | |
c58b9523 AM |
1315 | bfd_get_relocated_section_contents (bfd *abfd, |
1316 | struct bfd_link_info *link_info, | |
1317 | struct bfd_link_order *link_order, | |
1318 | bfd_byte *data, | |
1319 | bfd_boolean relocatable, | |
1320 | asymbol **symbols) | |
252b5132 RH |
1321 | { |
1322 | bfd *abfd2; | |
c58b9523 AM |
1323 | bfd_byte *(*fn) (bfd *, struct bfd_link_info *, struct bfd_link_order *, |
1324 | bfd_byte *, bfd_boolean, asymbol **); | |
252b5132 RH |
1325 | |
1326 | if (link_order->type == bfd_indirect_link_order) | |
1327 | { | |
1328 | abfd2 = link_order->u.indirect.section->owner; | |
55ab10f0 | 1329 | if (abfd2 == NULL) |
252b5132 RH |
1330 | abfd2 = abfd; |
1331 | } | |
1332 | else | |
1333 | abfd2 = abfd; | |
55ab10f0 | 1334 | |
252b5132 RH |
1335 | fn = abfd2->xvec->_bfd_get_relocated_section_contents; |
1336 | ||
1049f94e | 1337 | return (*fn) (abfd, link_info, link_order, data, relocatable, symbols); |
252b5132 RH |
1338 | } |
1339 | ||
1340 | /* Record information about an ELF program header. */ | |
1341 | ||
b34976b6 | 1342 | bfd_boolean |
c58b9523 AM |
1343 | bfd_record_phdr (bfd *abfd, |
1344 | unsigned long type, | |
1345 | bfd_boolean flags_valid, | |
1346 | flagword flags, | |
1347 | bfd_boolean at_valid, | |
1348 | bfd_vma at, | |
1349 | bfd_boolean includes_filehdr, | |
1350 | bfd_boolean includes_phdrs, | |
1351 | unsigned int count, | |
1352 | asection **secs) | |
252b5132 RH |
1353 | { |
1354 | struct elf_segment_map *m, **pm; | |
dc810e39 | 1355 | bfd_size_type amt; |
252b5132 RH |
1356 | |
1357 | if (bfd_get_flavour (abfd) != bfd_target_elf_flavour) | |
b34976b6 | 1358 | return TRUE; |
252b5132 | 1359 | |
dc810e39 AM |
1360 | amt = sizeof (struct elf_segment_map); |
1361 | amt += ((bfd_size_type) count - 1) * sizeof (asection *); | |
fb70130a | 1362 | m = bfd_zalloc (abfd, amt); |
252b5132 | 1363 | if (m == NULL) |
b34976b6 | 1364 | return FALSE; |
252b5132 | 1365 | |
252b5132 RH |
1366 | m->p_type = type; |
1367 | m->p_flags = flags; | |
1368 | m->p_paddr = at; | |
c58b9523 AM |
1369 | m->p_flags_valid = flags_valid; |
1370 | m->p_paddr_valid = at_valid; | |
1371 | m->includes_filehdr = includes_filehdr; | |
1372 | m->includes_phdrs = includes_phdrs; | |
252b5132 RH |
1373 | m->count = count; |
1374 | if (count > 0) | |
1375 | memcpy (m->sections, secs, count * sizeof (asection *)); | |
1376 | ||
1377 | for (pm = &elf_tdata (abfd)->segment_map; *pm != NULL; pm = &(*pm)->next) | |
1378 | ; | |
1379 | *pm = m; | |
1380 | ||
b34976b6 | 1381 | return TRUE; |
252b5132 | 1382 | } |
ae4221d7 | 1383 | |
01a3c213 AM |
1384 | #ifdef BFD64 |
1385 | /* Return true iff this target is 32-bit. */ | |
1386 | ||
1387 | static bfd_boolean | |
1388 | is32bit (bfd *abfd) | |
ae4221d7 L |
1389 | { |
1390 | if (bfd_get_flavour (abfd) == bfd_target_elf_flavour) | |
01a3c213 AM |
1391 | { |
1392 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
1393 | return bed->s->elfclass == ELFCLASS32; | |
1394 | } | |
1395 | ||
1396 | /* For non-ELF, make a guess based on the target name. */ | |
1397 | return (strstr (bfd_get_target (abfd), "64") == NULL | |
1398 | && strcmp (bfd_get_target (abfd), "mmo") != 0); | |
ae4221d7 | 1399 | } |
01a3c213 AM |
1400 | #endif |
1401 | ||
1402 | /* bfd_sprintf_vma and bfd_fprintf_vma display an address in the | |
1403 | target's address size. */ | |
ae4221d7 L |
1404 | |
1405 | void | |
01a3c213 | 1406 | bfd_sprintf_vma (bfd *abfd ATTRIBUTE_UNUSED, char *buf, bfd_vma value) |
ae4221d7 | 1407 | { |
970ccc77 | 1408 | #ifdef BFD64 |
01a3c213 AM |
1409 | if (is32bit (abfd)) |
1410 | { | |
1411 | sprintf (buf, "%08lx", (unsigned long) value & 0xffffffff); | |
1412 | return; | |
1413 | } | |
970ccc77 | 1414 | #endif |
01a3c213 AM |
1415 | sprintf_vma (buf, value); |
1416 | } | |
1417 | ||
1418 | void | |
1419 | bfd_fprintf_vma (bfd *abfd ATTRIBUTE_UNUSED, void *stream, bfd_vma value) | |
1420 | { | |
1421 | #ifdef BFD64 | |
1422 | if (is32bit (abfd)) | |
1423 | { | |
1424 | fprintf ((FILE *) stream, "%08lx", (unsigned long) value & 0xffffffff); | |
1425 | return; | |
1426 | } | |
1427 | #endif | |
1428 | fprintf_vma ((FILE *) stream, value); | |
ae4221d7 | 1429 | } |
8c98ec7d AO |
1430 | |
1431 | /* | |
1432 | FUNCTION | |
1433 | bfd_alt_mach_code | |
1434 | ||
1435 | SYNOPSIS | |
ed781d5d | 1436 | bfd_boolean bfd_alt_mach_code (bfd *abfd, int alternative); |
8c98ec7d AO |
1437 | |
1438 | DESCRIPTION | |
1439 | ||
1440 | When more than one machine code number is available for the | |
1441 | same machine type, this function can be used to switch between | |
47badb7b | 1442 | the preferred one (alternative == 0) and any others. Currently, |
8c98ec7d AO |
1443 | only ELF supports this feature, with up to two alternate |
1444 | machine codes. | |
1445 | */ | |
1446 | ||
b34976b6 | 1447 | bfd_boolean |
c58b9523 | 1448 | bfd_alt_mach_code (bfd *abfd, int alternative) |
8c98ec7d AO |
1449 | { |
1450 | if (bfd_get_flavour (abfd) == bfd_target_elf_flavour) | |
1451 | { | |
1452 | int code; | |
1453 | ||
47badb7b | 1454 | switch (alternative) |
8c98ec7d AO |
1455 | { |
1456 | case 0: | |
1457 | code = get_elf_backend_data (abfd)->elf_machine_code; | |
1458 | break; | |
1459 | ||
1460 | case 1: | |
1461 | code = get_elf_backend_data (abfd)->elf_machine_alt1; | |
1462 | if (code == 0) | |
b34976b6 | 1463 | return FALSE; |
8c98ec7d AO |
1464 | break; |
1465 | ||
1466 | case 2: | |
1467 | code = get_elf_backend_data (abfd)->elf_machine_alt2; | |
1468 | if (code == 0) | |
b34976b6 | 1469 | return FALSE; |
8c98ec7d AO |
1470 | break; |
1471 | ||
1472 | default: | |
b34976b6 | 1473 | return FALSE; |
8c98ec7d AO |
1474 | } |
1475 | ||
1476 | elf_elfheader (abfd)->e_machine = code; | |
1477 | ||
b34976b6 | 1478 | return TRUE; |
8c98ec7d AO |
1479 | } |
1480 | ||
b34976b6 | 1481 | return FALSE; |
8c98ec7d | 1482 | } |
e84d6fca AM |
1483 | |
1484 | /* | |
1485 | CODE_FRAGMENT | |
1486 | ||
1487 | .struct bfd_preserve | |
1488 | .{ | |
c58b9523 AM |
1489 | . void *marker; |
1490 | . void *tdata; | |
e84d6fca AM |
1491 | . flagword flags; |
1492 | . const struct bfd_arch_info *arch_info; | |
198beae2 | 1493 | . struct bfd_section *sections; |
5daa8fe7 | 1494 | . struct bfd_section *section_last; |
e84d6fca AM |
1495 | . unsigned int section_count; |
1496 | . struct bfd_hash_table section_htab; | |
1497 | .}; | |
1498 | . | |
1499 | */ | |
1500 | ||
1501 | /* | |
1502 | FUNCTION | |
1503 | bfd_preserve_save | |
1504 | ||
1505 | SYNOPSIS | |
b34976b6 | 1506 | bfd_boolean bfd_preserve_save (bfd *, struct bfd_preserve *); |
e84d6fca AM |
1507 | |
1508 | DESCRIPTION | |
1509 | When testing an object for compatibility with a particular | |
1510 | target back-end, the back-end object_p function needs to set | |
1511 | up certain fields in the bfd on successfully recognizing the | |
1512 | object. This typically happens in a piecemeal fashion, with | |
1513 | failures possible at many points. On failure, the bfd is | |
1514 | supposed to be restored to its initial state, which is | |
1515 | virtually impossible. However, restoring a subset of the bfd | |
1516 | state works in practice. This function stores the subset and | |
1517 | reinitializes the bfd. | |
1518 | ||
1519 | */ | |
1520 | ||
b34976b6 | 1521 | bfd_boolean |
c58b9523 | 1522 | bfd_preserve_save (bfd *abfd, struct bfd_preserve *preserve) |
e84d6fca AM |
1523 | { |
1524 | preserve->tdata = abfd->tdata.any; | |
1525 | preserve->arch_info = abfd->arch_info; | |
1526 | preserve->flags = abfd->flags; | |
e84d6fca | 1527 | preserve->sections = abfd->sections; |
5daa8fe7 | 1528 | preserve->section_last = abfd->section_last; |
e84d6fca AM |
1529 | preserve->section_count = abfd->section_count; |
1530 | preserve->section_htab = abfd->section_htab; | |
1531 | ||
66eb6687 AM |
1532 | if (! bfd_hash_table_init (&abfd->section_htab, bfd_section_hash_newfunc, |
1533 | sizeof (struct section_hash_entry))) | |
b34976b6 | 1534 | return FALSE; |
e84d6fca AM |
1535 | |
1536 | abfd->tdata.any = NULL; | |
1537 | abfd->arch_info = &bfd_default_arch_struct; | |
3ae41454 | 1538 | abfd->flags &= BFD_IN_MEMORY; |
e84d6fca | 1539 | abfd->sections = NULL; |
5daa8fe7 | 1540 | abfd->section_last = NULL; |
e84d6fca AM |
1541 | abfd->section_count = 0; |
1542 | ||
b34976b6 | 1543 | return TRUE; |
e84d6fca AM |
1544 | } |
1545 | ||
1546 | /* | |
1547 | FUNCTION | |
1548 | bfd_preserve_restore | |
1549 | ||
1550 | SYNOPSIS | |
1551 | void bfd_preserve_restore (bfd *, struct bfd_preserve *); | |
1552 | ||
1553 | DESCRIPTION | |
1554 | This function restores bfd state saved by bfd_preserve_save. | |
1555 | If MARKER is non-NULL in struct bfd_preserve then that block | |
1556 | and all subsequently bfd_alloc'd memory is freed. | |
1557 | ||
1558 | */ | |
1559 | ||
1560 | void | |
c58b9523 | 1561 | bfd_preserve_restore (bfd *abfd, struct bfd_preserve *preserve) |
e84d6fca AM |
1562 | { |
1563 | bfd_hash_table_free (&abfd->section_htab); | |
1564 | ||
1565 | abfd->tdata.any = preserve->tdata; | |
1566 | abfd->arch_info = preserve->arch_info; | |
1567 | abfd->flags = preserve->flags; | |
e84d6fca AM |
1568 | abfd->section_htab = preserve->section_htab; |
1569 | abfd->sections = preserve->sections; | |
5daa8fe7 | 1570 | abfd->section_last = preserve->section_last; |
e84d6fca AM |
1571 | abfd->section_count = preserve->section_count; |
1572 | ||
1573 | /* bfd_release frees all memory more recently bfd_alloc'd than | |
1574 | its arg, as well as its arg. */ | |
1575 | if (preserve->marker != NULL) | |
1576 | { | |
1577 | bfd_release (abfd, preserve->marker); | |
1578 | preserve->marker = NULL; | |
1579 | } | |
1580 | } | |
1581 | ||
1582 | /* | |
1583 | FUNCTION | |
1584 | bfd_preserve_finish | |
1585 | ||
1586 | SYNOPSIS | |
1587 | void bfd_preserve_finish (bfd *, struct bfd_preserve *); | |
1588 | ||
1589 | DESCRIPTION | |
1590 | This function should be called when the bfd state saved by | |
1591 | bfd_preserve_save is no longer needed. ie. when the back-end | |
1592 | object_p function returns with success. | |
1593 | ||
1594 | */ | |
1595 | ||
1596 | void | |
c58b9523 | 1597 | bfd_preserve_finish (bfd *abfd ATTRIBUTE_UNUSED, struct bfd_preserve *preserve) |
e84d6fca AM |
1598 | { |
1599 | /* It would be nice to be able to free more memory here, eg. old | |
1600 | tdata, but that's not possible since these blocks are sitting | |
1601 | inside bfd_alloc'd memory. The section hash is on a separate | |
1602 | objalloc. */ | |
1603 | bfd_hash_table_free (&preserve->section_htab); | |
1604 | } | |
24718e3b L |
1605 | |
1606 | /* | |
1607 | FUNCTION | |
1608 | bfd_emul_get_maxpagesize | |
1609 | ||
1610 | SYNOPSIS | |
1611 | bfd_vma bfd_emul_get_maxpagesize (const char *); | |
1612 | ||
1613 | DESCRIPTION | |
1614 | Returns the maximum page size, in bytes, as determined by | |
1615 | emulation. | |
1616 | ||
1617 | RETURNS | |
1618 | Returns the maximum page size in bytes for ELF, abort | |
1619 | otherwise. | |
1620 | */ | |
1621 | ||
1622 | bfd_vma | |
1623 | bfd_emul_get_maxpagesize (const char *emul) | |
1624 | { | |
1625 | const bfd_target *target; | |
1626 | ||
1627 | target = bfd_find_target (emul, NULL); | |
1628 | if (target != NULL | |
1629 | && target->flavour == bfd_target_elf_flavour) | |
1630 | return xvec_get_elf_backend_data (target)->maxpagesize; | |
1631 | ||
1632 | abort (); | |
1633 | return 0; | |
1634 | } | |
1635 | ||
1636 | static void | |
1637 | bfd_elf_set_pagesize (const bfd_target *target, bfd_vma size, | |
1638 | int offset, const bfd_target *orig_target) | |
1639 | { | |
1640 | if (target->flavour == bfd_target_elf_flavour) | |
1641 | { | |
1642 | const struct elf_backend_data *bed; | |
1643 | ||
1644 | bed = xvec_get_elf_backend_data (target); | |
1645 | *((bfd_vma *) ((char *) bed + offset)) = size; | |
1646 | } | |
1647 | ||
1648 | if (target->alternative_target | |
1649 | && target->alternative_target != orig_target) | |
1650 | bfd_elf_set_pagesize (target->alternative_target, size, offset, | |
1651 | orig_target); | |
1652 | } | |
1653 | ||
1654 | /* | |
1655 | FUNCTION | |
1656 | bfd_emul_set_maxpagesize | |
1657 | ||
1658 | SYNOPSIS | |
1659 | void bfd_emul_set_maxpagesize (const char *, bfd_vma); | |
1660 | ||
1661 | DESCRIPTION | |
1662 | For ELF, set the maximum page size for the emulation. It is | |
1663 | a no-op for other formats. | |
1664 | ||
1665 | */ | |
1666 | ||
1667 | void | |
1668 | bfd_emul_set_maxpagesize (const char *emul, bfd_vma size) | |
1669 | { | |
1670 | const bfd_target *target; | |
1671 | ||
1672 | target = bfd_find_target (emul, NULL); | |
1673 | if (target) | |
1674 | bfd_elf_set_pagesize (target, size, | |
1675 | offsetof (struct elf_backend_data, | |
1676 | maxpagesize), target); | |
1677 | } | |
1678 | ||
1679 | /* | |
1680 | FUNCTION | |
1681 | bfd_emul_get_commonpagesize | |
1682 | ||
1683 | SYNOPSIS | |
1684 | bfd_vma bfd_emul_get_commonpagesize (const char *); | |
1685 | ||
1686 | DESCRIPTION | |
1687 | Returns the common page size, in bytes, as determined by | |
1688 | emulation. | |
1689 | ||
1690 | RETURNS | |
1691 | Returns the common page size in bytes for ELF, abort otherwise. | |
1692 | */ | |
1693 | ||
1694 | bfd_vma | |
1695 | bfd_emul_get_commonpagesize (const char *emul) | |
1696 | { | |
1697 | const bfd_target *target; | |
1698 | ||
1699 | target = bfd_find_target (emul, NULL); | |
1700 | if (target != NULL | |
1701 | && target->flavour == bfd_target_elf_flavour) | |
1702 | return xvec_get_elf_backend_data (target)->commonpagesize; | |
1703 | ||
1704 | abort (); | |
1705 | return 0; | |
1706 | } | |
1707 | ||
1708 | /* | |
1709 | FUNCTION | |
1710 | bfd_emul_set_commonpagesize | |
1711 | ||
1712 | SYNOPSIS | |
1713 | void bfd_emul_set_commonpagesize (const char *, bfd_vma); | |
1714 | ||
1715 | DESCRIPTION | |
1716 | For ELF, set the common page size for the emulation. It is | |
1717 | a no-op for other formats. | |
1718 | ||
1719 | */ | |
1720 | ||
1721 | void | |
1722 | bfd_emul_set_commonpagesize (const char *emul, bfd_vma size) | |
1723 | { | |
1724 | const bfd_target *target; | |
1725 | ||
1726 | target = bfd_find_target (emul, NULL); | |
1727 | if (target) | |
1728 | bfd_elf_set_pagesize (target, size, | |
1729 | offsetof (struct elf_backend_data, | |
1730 | commonpagesize), target); | |
1731 | } | |
3fad56a3 AM |
1732 | |
1733 | /* | |
1734 | FUNCTION | |
1735 | bfd_demangle | |
1736 | ||
1737 | SYNOPSIS | |
1738 | char *bfd_demangle (bfd *, const char *, int); | |
1739 | ||
1740 | DESCRIPTION | |
1741 | Wrapper around cplus_demangle. Strips leading underscores and | |
1742 | other such chars that would otherwise confuse the demangler. | |
1743 | If passed a g++ v3 ABI mangled name, returns a buffer allocated | |
1744 | with malloc holding the demangled name. Returns NULL otherwise | |
1745 | and on memory alloc failure. | |
1746 | */ | |
1747 | ||
1748 | char * | |
1749 | bfd_demangle (bfd *abfd, const char *name, int options) | |
1750 | { | |
1751 | char *res, *alloc; | |
1752 | const char *pre, *suf; | |
1753 | size_t pre_len; | |
1754 | ||
1755 | if (abfd != NULL | |
1756 | && *name != '\0' | |
1757 | && bfd_get_symbol_leading_char (abfd) == *name) | |
1758 | ++name; | |
1759 | ||
1760 | /* This is a hack for better error reporting on XCOFF, PowerPC64-ELF | |
1761 | or the MS PE format. These formats have a number of leading '.'s | |
1762 | on at least some symbols, so we remove all dots to avoid | |
1763 | confusing the demangler. */ | |
1764 | pre = name; | |
1765 | while (*name == '.' || *name == '$') | |
1766 | ++name; | |
1767 | pre_len = name - pre; | |
1768 | ||
1769 | /* Strip off @plt and suchlike too. */ | |
1770 | alloc = NULL; | |
1771 | suf = strchr (name, '@'); | |
1772 | if (suf != NULL) | |
1773 | { | |
1774 | alloc = bfd_malloc (suf - name + 1); | |
1775 | if (alloc == NULL) | |
1776 | return NULL; | |
1777 | memcpy (alloc, name, suf - name); | |
1778 | alloc[suf - name] = '\0'; | |
1779 | name = alloc; | |
1780 | } | |
1781 | ||
1782 | res = cplus_demangle (name, options); | |
1783 | ||
1784 | if (alloc != NULL) | |
1785 | free (alloc); | |
1786 | ||
1787 | if (res == NULL) | |
1788 | return NULL; | |
1789 | ||
1790 | /* Put back any prefix or suffix. */ | |
1791 | if (pre_len != 0 || suf != NULL) | |
1792 | { | |
1793 | size_t len; | |
1794 | size_t suf_len; | |
1795 | char *final; | |
1796 | ||
1797 | len = strlen (res); | |
1798 | if (suf == NULL) | |
1799 | suf = res + len; | |
1800 | suf_len = strlen (suf) + 1; | |
1801 | final = bfd_malloc (pre_len + len + suf_len); | |
32e8a950 NC |
1802 | if (final != NULL) |
1803 | { | |
1804 | memcpy (final, pre, pre_len); | |
1805 | memcpy (final + pre_len, res, len); | |
1806 | memcpy (final + pre_len + len, suf, suf_len); | |
1807 | } | |
3fad56a3 AM |
1808 | free (res); |
1809 | res = final; | |
1810 | } | |
1811 | ||
1812 | return res; | |
1813 | } |