Commit | Line | Data |
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6724ff46 | 1 | /* Generic BFD library interface and support routines. |
34b6a8c3 | 2 | Copyright (C) 1990, 1991, 1992, 1993 Free Software Foundation, Inc. |
6724ff46 | 3 | Written by Cygnus Support. |
4a81b561 | 4 | |
6724ff46 | 5 | This file is part of BFD, the Binary File Descriptor library. |
4a81b561 | 6 | |
6724ff46 | 7 | This program is free software; you can redistribute it and/or modify |
4a81b561 | 8 | it under the terms of the GNU General Public License as published by |
6724ff46 RP |
9 | the Free Software Foundation; either version 2 of the License, or |
10 | (at your option) any later version. | |
4a81b561 | 11 | |
6724ff46 | 12 | This program is distributed in the hope that it will be useful, |
4a81b561 DHW |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
6724ff46 RP |
18 | along with this program; if not, write to the Free Software |
19 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
6f715d66 | 20 | |
93351e91 SC |
21 | /* |
22 | SECTION | |
23 | <<typedef bfd>> | |
6f715d66 | 24 | |
c188b0be DM |
25 | A BFD has type <<bfd>>; objects of this type are the |
26 | cornerstone of any application using <<libbfd>>. Using BFD | |
27 | consists of making references though the BFD and to data in the BFD. | |
6f715d66 | 28 | |
c188b0be DM |
29 | Here is the structure that defines the type <<bfd>>. It |
30 | contains the major data about the file and pointers | |
93351e91 | 31 | to the rest of the data. |
6f715d66 | 32 | |
e98e6ec1 SC |
33 | CODE_FRAGMENT |
34 | . | |
93351e91 SC |
35 | .struct _bfd |
36 | .{ | |
e98e6ec1 SC |
37 | . {* The filename the application opened the BFD with. *} |
38 | . CONST char *filename; | |
39 | . | |
40 | . {* A pointer to the target jump table. *} | |
41 | . struct bfd_target *xvec; | |
42 | . | |
43 | . {* To avoid dragging too many header files into every file that | |
d3e667e8 | 44 | . includes `<<bfd.h>>', IOSTREAM has been declared as a "char |
e98e6ec1 SC |
45 | . *", and MTIME as a "long". Their correct types, to which they |
46 | . are cast when used, are "FILE *" and "time_t". The iostream | |
47 | . is the result of an fopen on the filename. *} | |
48 | . char *iostream; | |
49 | . | |
baf205c4 JG |
50 | . {* Is the file descriptor being cached? That is, can it be closed as |
51 | . needed, and re-opened when accessed later? *} | |
e98e6ec1 SC |
52 | . |
53 | . boolean cacheable; | |
54 | . | |
55 | . {* Marks whether there was a default target specified when the | |
c188b0be DM |
56 | . BFD was opened. This is used to select which matching algorithm |
57 | . to use to choose the back end. *} | |
e98e6ec1 SC |
58 | . |
59 | . boolean target_defaulted; | |
60 | . | |
61 | . {* The caching routines use these to maintain a | |
62 | . least-recently-used list of BFDs *} | |
63 | . | |
64 | . struct _bfd *lru_prev, *lru_next; | |
65 | . | |
66 | . {* When a file is closed by the caching routines, BFD retains | |
c188b0be | 67 | . state information on the file here: *} |
e98e6ec1 SC |
68 | . |
69 | . file_ptr where; | |
70 | . | |
c188b0be | 71 | . {* and here: (``once'' means at least once) *} |
e98e6ec1 SC |
72 | . |
73 | . boolean opened_once; | |
74 | . | |
75 | . {* Set if we have a locally maintained mtime value, rather than | |
76 | . getting it from the file each time: *} | |
77 | . | |
78 | . boolean mtime_set; | |
79 | . | |
80 | . {* File modified time, if mtime_set is true: *} | |
81 | . | |
82 | . long mtime; | |
83 | . | |
84 | . {* Reserved for an unimplemented file locking extension.*} | |
85 | . | |
86 | . int ifd; | |
87 | . | |
c188b0be | 88 | . {* The format which belongs to the BFD. (object, core, etc.) *} |
e98e6ec1 SC |
89 | . |
90 | . bfd_format format; | |
91 | . | |
92 | . {* The direction the BFD was opened with*} | |
93 | . | |
94 | . enum bfd_direction {no_direction = 0, | |
95 | . read_direction = 1, | |
96 | . write_direction = 2, | |
97 | . both_direction = 3} direction; | |
98 | . | |
99 | . {* Format_specific flags*} | |
100 | . | |
101 | . flagword flags; | |
102 | . | |
103 | . {* Currently my_archive is tested before adding origin to | |
104 | . anything. I believe that this can become always an add of | |
105 | . origin, with origin set to 0 for non archive files. *} | |
106 | . | |
107 | . file_ptr origin; | |
108 | . | |
109 | . {* Remember when output has begun, to stop strange things | |
c188b0be | 110 | . from happening. *} |
e98e6ec1 SC |
111 | . boolean output_has_begun; |
112 | . | |
113 | . {* Pointer to linked list of sections*} | |
114 | . struct sec *sections; | |
115 | . | |
116 | . {* The number of sections *} | |
117 | . unsigned int section_count; | |
118 | . | |
119 | . {* Stuff only useful for object files: | |
120 | . The start address. *} | |
121 | . bfd_vma start_address; | |
122 | . | |
123 | . {* Used for input and output*} | |
124 | . unsigned int symcount; | |
125 | . | |
c188b0be | 126 | . {* Symbol table for output BFD (with symcount entries) *} |
e98e6ec1 SC |
127 | . struct symbol_cache_entry **outsymbols; |
128 | . | |
129 | . {* Pointer to structure which contains architecture information*} | |
130 | . struct bfd_arch_info *arch_info; | |
131 | . | |
132 | . {* Stuff only useful for archives:*} | |
133 | . PTR arelt_data; | |
c188b0be DM |
134 | . struct _bfd *my_archive; {* The containing archive BFD. *} |
135 | . struct _bfd *next; {* The next BFD in the archive. *} | |
136 | . struct _bfd *archive_head; {* The first BFD in the archive. *} | |
e98e6ec1 SC |
137 | . boolean has_armap; |
138 | . | |
139 | . {* Used by the back end to hold private data. *} | |
140 | . | |
141 | . union | |
142 | . { | |
143 | . struct aout_data_struct *aout_data; | |
144 | . struct artdata *aout_ar_data; | |
145 | . struct _oasys_data *oasys_obj_data; | |
146 | . struct _oasys_ar_data *oasys_ar_data; | |
147 | . struct coff_tdata *coff_obj_data; | |
515c4292 | 148 | . struct ecoff_tdata *ecoff_obj_data; |
e98e6ec1 SC |
149 | . struct ieee_data_struct *ieee_data; |
150 | . struct ieee_ar_data_struct *ieee_ar_data; | |
151 | . struct srec_data_struct *srec_data; | |
d3e667e8 JG |
152 | . struct tekhex_data_struct *tekhex_data; |
153 | . struct elf_obj_tdata *elf_obj_data; | |
b70cb81e | 154 | . struct nlm_obj_tdata *nlm_obj_data; |
e98e6ec1 SC |
155 | . struct bout_data_struct *bout_data; |
156 | . struct sun_core_struct *sun_core_data; | |
2b74083c | 157 | . struct trad_core_struct *trad_core_data; |
baf205c4 | 158 | . struct som_data_struct *som_data; |
a643e626 | 159 | . struct hpux_core_struct *hpux_core_data; |
70e00914 | 160 | . struct sgi_core_struct *sgi_core_data; |
baf205c4 JG |
161 | . struct lynx_core_struct *lynx_core_data; |
162 | . struct osf_core_struct *osf_core_data; | |
e98e6ec1 SC |
163 | . PTR any; |
164 | . } tdata; | |
165 | . | |
166 | . {* Used by the application to hold private data*} | |
167 | . PTR usrdata; | |
168 | . | |
169 | . {* Where all the allocated stuff under this BFD goes *} | |
170 | . struct obstack memory; | |
171 | . | |
d3e667e8 | 172 | . {* Is this really needed in addition to usrdata? *} |
e98e6ec1 | 173 | . asymbol **ld_symbols; |
93351e91 | 174 | .}; |
e98e6ec1 | 175 | . |
6f715d66 | 176 | */ |
e98e6ec1 | 177 | |
4a81b561 | 178 | #include "bfd.h" |
bbc8d484 | 179 | #include "sysdep.h" |
4a81b561 | 180 | #include "libbfd.h" |
dae31cf5 | 181 | #include "coff/internal.h" |
34b6a8c3 | 182 | #include "coff/sym.h" |
48edba81 | 183 | #include "libcoff.h" |
34b6a8c3 | 184 | #include "libecoff.h" |
baf205c4 JG |
185 | #undef obj_symbols |
186 | #include "libelf.h" | |
4a81b561 | 187 | |
cbdc7909 | 188 | #undef strerror |
bbc8d484 JG |
189 | extern char *strerror(); |
190 | ||
4a81b561 DHW |
191 | /** Error handling |
192 | o - Most functions return nonzero on success (check doc for | |
6f715d66 | 193 | precise semantics); 0 or NULL on error. |
4a81b561 | 194 | o - Internal errors are documented by the value of bfd_error. |
6f715d66 | 195 | If that is system_call_error then check errno. |
4a81b561 DHW |
196 | o - The easiest way to report this to the user is to use bfd_perror. |
197 | */ | |
198 | ||
199 | bfd_ec bfd_error = no_error; | |
200 | ||
34b6a8c3 JK |
201 | CONST char *CONST bfd_errmsgs[] = { |
202 | "No error", | |
6f715d66 SC |
203 | "System call error", |
204 | "Invalid target", | |
205 | "File in wrong format", | |
206 | "Invalid operation", | |
207 | "Memory exhausted", | |
208 | "No symbols", | |
209 | "No relocation info", | |
210 | "No more archived files", | |
211 | "Malformed archive", | |
212 | "Symbol not found", | |
213 | "File format not recognized", | |
214 | "File format is ambiguous", | |
215 | "Section has no contents", | |
216 | "Nonrepresentable section on output", | |
cbdc7909 | 217 | "Symbol needs debug section which does not exist", |
d3e667e8 | 218 | "Bad value", |
34b6a8c3 | 219 | "File truncated", |
6f715d66 SC |
220 | "#<Invalid error code>" |
221 | }; | |
4a81b561 | 222 | |
9846338e SC |
223 | static |
224 | void | |
225 | DEFUN(bfd_nonrepresentable_section,(abfd, name), | |
6f715d66 SC |
226 | CONST bfd * CONST abfd AND |
227 | CONST char * CONST name) | |
9846338e | 228 | { |
dae31cf5 ILT |
229 | fprintf(stderr, |
230 | "bfd error writing file %s, format %s can't represent section %s\n", | |
231 | abfd->filename, | |
232 | abfd->xvec->name, | |
233 | name); | |
9846338e SC |
234 | exit(1); |
235 | } | |
fc723380 | 236 | |
d3e667e8 | 237 | /*ARGSUSED*/ |
e98e6ec1 SC |
238 | static |
239 | void | |
240 | DEFUN(bfd_undefined_symbol,(relent, seclet), | |
241 | CONST arelent *relent AND | |
d3e667e8 | 242 | CONST struct bfd_seclet *seclet) |
e98e6ec1 SC |
243 | { |
244 | asymbol *symbol = *(relent->sym_ptr_ptr); | |
dae31cf5 ILT |
245 | fprintf(stderr, "bfd error relocating, symbol %s is undefined\n", |
246 | symbol->name); | |
e98e6ec1 SC |
247 | exit(1); |
248 | } | |
d3e667e8 | 249 | /*ARGSUSED*/ |
e98e6ec1 SC |
250 | static |
251 | void | |
252 | DEFUN(bfd_reloc_value_truncated,(relent, seclet), | |
253 | CONST arelent *relent AND | |
d3e667e8 | 254 | struct bfd_seclet *seclet) |
e98e6ec1 | 255 | { |
dae31cf5 | 256 | fprintf(stderr, "bfd error relocating, value truncated\n"); |
e98e6ec1 SC |
257 | exit(1); |
258 | } | |
d3e667e8 | 259 | /*ARGSUSED*/ |
e98e6ec1 SC |
260 | static |
261 | void | |
262 | DEFUN(bfd_reloc_is_dangerous,(relent, seclet), | |
263 | CONST arelent *relent AND | |
d3e667e8 | 264 | CONST struct bfd_seclet *seclet) |
e98e6ec1 | 265 | { |
dae31cf5 | 266 | fprintf(stderr, "bfd error relocating, dangerous\n"); |
e98e6ec1 SC |
267 | exit(1); |
268 | } | |
269 | ||
9846338e SC |
270 | bfd_error_vector_type bfd_error_vector = |
271 | { | |
e98e6ec1 SC |
272 | bfd_nonrepresentable_section , |
273 | bfd_undefined_symbol, | |
274 | bfd_reloc_value_truncated, | |
275 | bfd_reloc_is_dangerous, | |
9846338e SC |
276 | }; |
277 | ||
e98e6ec1 | 278 | |
d3e667e8 | 279 | CONST char * |
4a81b561 DHW |
280 | bfd_errmsg (error_tag) |
281 | bfd_ec error_tag; | |
282 | { | |
7ed4093a SC |
283 | #ifndef errno |
284 | extern int errno; | |
285 | #endif | |
4a81b561 DHW |
286 | if (error_tag == system_call_error) |
287 | return strerror (errno); | |
288 | ||
289 | if ((((int)error_tag <(int) no_error) || | |
290 | ((int)error_tag > (int)invalid_error_code))) | |
291 | error_tag = invalid_error_code;/* sanity check */ | |
292 | ||
293 | return bfd_errmsgs [(int)error_tag]; | |
294 | } | |
295 | ||
70e00914 KR |
296 | void |
297 | DEFUN (bfd_default_error_trap, (error_tag), | |
298 | bfd_ec error_tag) | |
9846338e | 299 | { |
dae31cf5 | 300 | fprintf(stderr, "bfd assert fail (%s)\n", bfd_errmsg(error_tag)); |
9846338e SC |
301 | } |
302 | ||
70e00914 KR |
303 | void (*bfd_error_trap) PARAMS ((bfd_ec)) = bfd_default_error_trap; |
304 | void (*bfd_error_nonrepresentabltrap) PARAMS ((bfd_ec)) = bfd_default_error_trap; | |
fc723380 | 305 | |
4a81b561 | 306 | void |
1f4d3c79 SC |
307 | DEFUN(bfd_perror,(message), |
308 | CONST char *message) | |
4a81b561 DHW |
309 | { |
310 | if (bfd_error == system_call_error) | |
6f715d66 | 311 | perror((char *)message); /* must be system error then... */ |
4a81b561 DHW |
312 | else { |
313 | if (message == NULL || *message == '\0') | |
314 | fprintf (stderr, "%s\n", bfd_errmsg (bfd_error)); | |
315 | else | |
316 | fprintf (stderr, "%s: %s\n", message, bfd_errmsg (bfd_error)); | |
317 | } | |
318 | } | |
319 | ||
4a81b561 | 320 | |
e98e6ec1 SC |
321 | /* |
322 | FUNCTION | |
323 | bfd_set_file_flags | |
324 | ||
325 | SYNOPSIS | |
326 | boolean bfd_set_file_flags(bfd *abfd, flagword flags); | |
327 | ||
328 | DESCRIPTION | |
c188b0be | 329 | Set the flag word in the BFD @var{abfd} to the value @var{flags}. |
e98e6ec1 SC |
330 | |
331 | Possible errors are: | |
332 | o wrong_format - The target bfd was not of object format. | |
333 | o invalid_operation - The target bfd was open for reading. | |
334 | o invalid_operation - | |
335 | The flag word contained a bit which was not applicable to the | |
c188b0be DM |
336 | type of file. E.g., an attempt was made to set the D_PAGED bit |
337 | on a bfd format which does not support demand paging. | |
e98e6ec1 SC |
338 | |
339 | */ | |
340 | ||
4a81b561 DHW |
341 | boolean |
342 | bfd_set_file_flags (abfd, flags) | |
343 | bfd *abfd; | |
344 | flagword flags; | |
345 | { | |
346 | if (abfd->format != bfd_object) { | |
347 | bfd_error = wrong_format; | |
348 | return false; | |
349 | } | |
350 | ||
351 | if (bfd_read_p (abfd)) { | |
352 | bfd_error = invalid_operation; | |
353 | return false; | |
354 | } | |
355 | ||
d3e667e8 | 356 | bfd_get_file_flags (abfd) = flags; |
4a81b561 DHW |
357 | if ((flags & bfd_applicable_file_flags (abfd)) != flags) { |
358 | bfd_error = invalid_operation; | |
359 | return false; | |
360 | } | |
361 | ||
4a81b561 DHW |
362 | return true; |
363 | } | |
364 | ||
4a81b561 DHW |
365 | void |
366 | bfd_assert(file, line) | |
367 | char *file; | |
368 | int line; | |
369 | { | |
dae31cf5 | 370 | fprintf(stderr, "bfd assertion fail %s:%d\n",file,line); |
4a81b561 DHW |
371 | } |
372 | ||
373 | ||
93351e91 SC |
374 | /* |
375 | FUNCTION | |
376 | bfd_set_start_address | |
377 | ||
c188b0be DM |
378 | SYNOPSIS |
379 | boolean bfd_set_start_address(bfd *abfd, bfd_vma vma); | |
380 | ||
93351e91 | 381 | DESCRIPTION |
c188b0be | 382 | Make @var{vma} the entry point of output BFD @var{abfd}. |
6f715d66 | 383 | |
93351e91 SC |
384 | RETURNS |
385 | Returns <<true>> on success, <<false>> otherwise. | |
6f715d66 SC |
386 | */ |
387 | ||
4a81b561 DHW |
388 | boolean |
389 | bfd_set_start_address(abfd, vma) | |
390 | bfd *abfd; | |
391 | bfd_vma vma; | |
392 | { | |
393 | abfd->start_address = vma; | |
394 | return true; | |
395 | } | |
396 | ||
397 | ||
93351e91 SC |
398 | /* |
399 | FUNCTION | |
c188b0be | 400 | bfd_get_mtime |
6f715d66 | 401 | |
93351e91 | 402 | SYNOPSIS |
c188b0be | 403 | long bfd_get_mtime(bfd *abfd); |
e98e6ec1 SC |
404 | |
405 | DESCRIPTION | |
c188b0be DM |
406 | Return the file modification time (as read from the file system, or |
407 | from the archive header for archive members). | |
e98e6ec1 | 408 | |
6f715d66 | 409 | */ |
4a81b561 DHW |
410 | |
411 | long | |
412 | bfd_get_mtime (abfd) | |
413 | bfd *abfd; | |
414 | { | |
415 | FILE *fp; | |
416 | struct stat buf; | |
417 | ||
418 | if (abfd->mtime_set) | |
419 | return abfd->mtime; | |
420 | ||
421 | fp = bfd_cache_lookup (abfd); | |
422 | if (0 != fstat (fileno (fp), &buf)) | |
423 | return 0; | |
424 | ||
e98e6ec1 SC |
425 | abfd->mtime = buf.st_mtime; /* Save value in case anyone wants it */ |
426 | return buf.st_mtime; | |
4a81b561 | 427 | } |
6f715d66 | 428 | |
515c4292 ILT |
429 | /* |
430 | FUNCTION | |
c188b0be | 431 | bfd_get_size |
515c4292 ILT |
432 | |
433 | SYNOPSIS | |
c188b0be | 434 | long bfd_get_size(bfd *abfd); |
515c4292 ILT |
435 | |
436 | DESCRIPTION | |
c188b0be DM |
437 | Return the file size (as read from file system) for the file |
438 | associated with BFD @var{abfd}. | |
515c4292 | 439 | |
c188b0be DM |
440 | The initial motivation for, and use of, this routine is not |
441 | so we can get the exact size of the object the BFD applies to, since | |
442 | that might not be generally possible (archive members for example). | |
443 | It would be ideal if someone could eventually modify | |
515c4292 ILT |
444 | it so that such results were guaranteed. |
445 | ||
446 | Instead, we want to ask questions like "is this NNN byte sized | |
447 | object I'm about to try read from file offset YYY reasonable?" | |
c188b0be DM |
448 | As as example of where we might do this, some object formats |
449 | use string tables for which the first <<sizeof(long)>> bytes of the | |
450 | table contain the size of the table itself, including the size bytes. | |
515c4292 ILT |
451 | If an application tries to read what it thinks is one of these |
452 | string tables, without some way to validate the size, and for | |
453 | some reason the size is wrong (byte swapping error, wrong location | |
c188b0be | 454 | for the string table, etc.), the only clue is likely to be a read |
515c4292 | 455 | error when it tries to read the table, or a "virtual memory |
c188b0be | 456 | exhausted" error when it tries to allocate 15 bazillon bytes |
515c4292 ILT |
457 | of space for the 15 bazillon byte table it is about to read. |
458 | This function at least allows us to answer the quesion, "is the | |
459 | size reasonable?". | |
460 | */ | |
461 | ||
462 | long | |
463 | bfd_get_size (abfd) | |
464 | bfd *abfd; | |
465 | { | |
466 | FILE *fp; | |
467 | struct stat buf; | |
468 | ||
469 | fp = bfd_cache_lookup (abfd); | |
470 | if (0 != fstat (fileno (fp), &buf)) | |
471 | return 0; | |
472 | ||
473 | return buf.st_size; | |
474 | } | |
475 | ||
34b6a8c3 JK |
476 | /* |
477 | FUNCTION | |
c188b0be | 478 | bfd_get_gp_size |
34b6a8c3 JK |
479 | |
480 | SYNOPSIS | |
c188b0be | 481 | int bfd_get_gp_size(bfd *abfd); |
34b6a8c3 JK |
482 | |
483 | DESCRIPTION | |
c188b0be | 484 | Return the maximum size of objects to be optimized using the GP |
34b6a8c3 JK |
485 | register under MIPS ECOFF. This is typically set by the -G |
486 | argument to the compiler, assembler or linker. | |
487 | */ | |
488 | ||
489 | int | |
490 | bfd_get_gp_size (abfd) | |
491 | bfd *abfd; | |
492 | { | |
493 | if (abfd->xvec->flavour == bfd_target_ecoff_flavour) | |
494 | return ecoff_data (abfd)->gp_size; | |
495 | return 0; | |
496 | } | |
497 | ||
498 | /* | |
499 | FUNCTION | |
c188b0be | 500 | bfd_set_gp_size |
34b6a8c3 JK |
501 | |
502 | SYNOPSIS | |
c188b0be | 503 | void bfd_set_gp_size(bfd *abfd, int i); |
34b6a8c3 JK |
504 | |
505 | DESCRIPTION | |
506 | Set the maximum size of objects to be optimized using the GP | |
baf205c4 JG |
507 | register under ECOFF or MIPS ELF. This is typically set by |
508 | the -G argument to the compiler, assembler or linker. | |
34b6a8c3 JK |
509 | */ |
510 | ||
511 | void | |
512 | bfd_set_gp_size (abfd, i) | |
513 | bfd *abfd; | |
514 | int i; | |
515 | { | |
516 | if (abfd->xvec->flavour == bfd_target_ecoff_flavour) | |
517 | ecoff_data (abfd)->gp_size = i; | |
baf205c4 JG |
518 | else if (abfd->xvec->flavour == bfd_target_elf_flavour) |
519 | elf_gp_size (abfd) = i; | |
520 | } | |
521 | ||
522 | /* | |
523 | FUNCTION | |
524 | bfd_scan_vma | |
525 | ||
c188b0be DM |
526 | SYNOPSIS |
527 | bfd_vma bfd_scan_vma(CONST char *string, CONST char **end, int base); | |
528 | ||
baf205c4 | 529 | DESCRIPTION |
c188b0be DM |
530 | Convert, like <<strtoul>>, a numerical expression |
531 | @var{string} into a bfd_vma integer, and returns that integer. | |
532 | (Though without as many bells and whistles as <<strtoul>>.) | |
baf205c4 | 533 | The expression is assumed to be unsigned (i.e. positive). |
c188b0be | 534 | If given a @var{base}, it is used as the base for conversion. |
baf205c4 JG |
535 | A base of 0 causes the function to interpret the string |
536 | in hex if a leading "0x" or "0X" is found, otherwise | |
537 | in octal if a leading zero is found, otherwise in decimal. | |
538 | ||
539 | Overflow is not detected. | |
baf205c4 JG |
540 | */ |
541 | ||
542 | bfd_vma | |
543 | DEFUN(bfd_scan_vma,(string, end, base), | |
544 | CONST char *string AND | |
545 | CONST char **end AND | |
546 | int base) | |
547 | { | |
548 | bfd_vma value; | |
549 | int digit; | |
550 | ||
551 | /* Let the host do it if possible. */ | |
552 | if (sizeof(bfd_vma) <= sizeof(unsigned long)) | |
553 | return (bfd_vma) strtoul (string, 0, base); | |
554 | ||
555 | /* A negative base makes no sense, and we only need to go as high as hex. */ | |
556 | if ((base < 0) || (base > 16)) | |
557 | return (bfd_vma) 0; | |
558 | ||
559 | if (base == 0) | |
560 | { | |
561 | if (string[0] == '0') | |
562 | { | |
563 | if ((string[1] == 'x') || (string[1] == 'X')) | |
564 | base = 16; | |
565 | /* XXX should we also allow "0b" or "0B" to set base to 2? */ | |
566 | else | |
567 | base = 8; | |
568 | } | |
569 | else | |
570 | base = 10; | |
571 | } | |
572 | if ((base == 16) && | |
573 | (string[0] == '0') && ((string[1] == 'x') || (string[1] == 'X'))) | |
574 | string += 2; | |
575 | /* XXX should we also skip over "0b" or "0B" if base is 2? */ | |
576 | ||
577 | /* Speed could be improved with a table like hex_value[] in gas. */ | |
578 | #define HEX_VALUE(c) \ | |
579 | (isxdigit(c) ? \ | |
580 | (isdigit(c) ? \ | |
581 | (c - '0') : \ | |
582 | (10 + c - (islower(c) ? 'a' : 'A'))) : \ | |
583 | 42) | |
584 | ||
585 | for (value = 0; (digit = HEX_VALUE(*string)) < base; string++) | |
586 | { | |
587 | value = value * base + digit; | |
588 | } | |
589 | ||
590 | if (end) | |
591 | *end = string; | |
592 | ||
593 | return value; | |
34b6a8c3 JK |
594 | } |
595 | ||
93351e91 SC |
596 | /* |
597 | FUNCTION | |
598 | stuff | |
599 | ||
600 | DESCRIPTION | |
c188b0be | 601 | Stuff which should be documented: |
93351e91 SC |
602 | |
603 | .#define bfd_sizeof_headers(abfd, reloc) \ | |
604 | . BFD_SEND (abfd, _bfd_sizeof_headers, (abfd, reloc)) | |
605 | . | |
e98e6ec1 SC |
606 | .#define bfd_find_nearest_line(abfd, sec, syms, off, file, func, line) \ |
607 | . BFD_SEND (abfd, _bfd_find_nearest_line, (abfd, sec, syms, off, file, func, line)) | |
93351e91 | 608 | . |
d3e667e8 | 609 | . {* Do these three do anything useful at all, for any back end? *} |
93351e91 SC |
610 | .#define bfd_debug_info_start(abfd) \ |
611 | . BFD_SEND (abfd, _bfd_debug_info_start, (abfd)) | |
612 | . | |
613 | .#define bfd_debug_info_end(abfd) \ | |
614 | . BFD_SEND (abfd, _bfd_debug_info_end, (abfd)) | |
615 | . | |
616 | .#define bfd_debug_info_accumulate(abfd, section) \ | |
617 | . BFD_SEND (abfd, _bfd_debug_info_accumulate, (abfd, section)) | |
618 | . | |
d3e667e8 | 619 | . |
93351e91 SC |
620 | .#define bfd_stat_arch_elt(abfd, stat) \ |
621 | . BFD_SEND (abfd, _bfd_stat_arch_elt,(abfd, stat)) | |
622 | . | |
93351e91 SC |
623 | .#define bfd_set_arch_mach(abfd, arch, mach)\ |
624 | . BFD_SEND ( abfd, _bfd_set_arch_mach, (abfd, arch, mach)) | |
625 | . | |
34b6a8c3 JK |
626 | .#define bfd_get_relocated_section_contents(abfd, seclet, data, relocateable) \ |
627 | . BFD_SEND (abfd, _bfd_get_relocated_section_contents, (abfd, seclet, data, relocateable)) | |
d3e667e8 | 628 | . |
6590a8c9 SC |
629 | .#define bfd_relax_section(abfd, section, symbols) \ |
630 | . BFD_SEND (abfd, _bfd_relax_section, (abfd, section, symbols)) | |
34b6a8c3 JK |
631 | . |
632 | .#define bfd_seclet_link(abfd, data, relocateable) \ | |
633 | . BFD_SEND (abfd, _bfd_seclet_link, (abfd, data, relocateable)) | |
6590a8c9 | 634 | |
6f715d66 | 635 | */ |