Commit | Line | Data |
---|---|---|
252b5132 | 1 | /* ldmisc.c |
6d39955e | 2 | Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
5ed6aba4 | 3 | 2000, 2002, 2003 |
252b5132 RH |
4 | Free Software Foundation, Inc. |
5 | Written by Steve Chamberlain of Cygnus Support. | |
6 | ||
5ed6aba4 | 7 | This file is part of GLD, the Gnu Linker. |
252b5132 | 8 | |
5ed6aba4 NC |
9 | GLD 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, or (at your option) | |
12 | any later version. | |
252b5132 | 13 | |
5ed6aba4 NC |
14 | GLD 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 | |
5ed6aba4 NC |
19 | You should have received a copy of the GNU General Public License |
20 | along with GLD; see the file COPYING. If not, write to the Free | |
21 | Software Foundation, 59 Temple Place - Suite 330, Boston, MA | |
22 | 02111-1307, USA. */ | |
252b5132 RH |
23 | |
24 | #include "bfd.h" | |
6f6f27f8 | 25 | #include "bfdlink.h" |
252b5132 RH |
26 | #include "sysdep.h" |
27 | #include "libiberty.h" | |
28 | #include "demangle.h" | |
29 | ||
30 | #ifdef ANSI_PROTOTYPES | |
31 | #include <stdarg.h> | |
252b5132 RH |
32 | #else |
33 | #include <varargs.h> | |
252b5132 RH |
34 | #endif |
35 | ||
36 | #include "ld.h" | |
37 | #include "ldmisc.h" | |
38 | #include "ldexp.h" | |
39 | #include "ldlang.h" | |
df2a7313 | 40 | #include <ldgram.h> |
252b5132 RH |
41 | #include "ldlex.h" |
42 | #include "ldmain.h" | |
43 | #include "ldfile.h" | |
44 | ||
45 | static void vfinfo PARAMS ((FILE *, const char *, va_list)); | |
46 | ||
47 | /* | |
48 | %% literal % | |
49 | %F error is fatal | |
50 | %P print program name | |
51 | %S print script file and linenumber | |
52 | %E current bfd error or errno | |
53 | %I filename from a lang_input_statement_type | |
54 | %B filename from a bfd | |
55 | %T symbol name | |
56 | %X no object output, fail return | |
57 | %V hex bfd_vma | |
58 | %v hex bfd_vma, no leading zeros | |
59 | %W hex bfd_vma with 0x with no leading zeros taking up 8 spaces | |
60 | %C clever filename:linenumber with function | |
61 | %D like %C, but no function name | |
62 | %G like %D, but only function name | |
63 | %R info about a relent | |
64 | %s arbitrary string, like printf | |
65 | %d integer, like printf | |
66 | %u integer, like printf | |
67 | */ | |
68 | ||
252b5132 RH |
69 | static void |
70 | vfinfo (fp, fmt, arg) | |
71 | FILE *fp; | |
72 | const char *fmt; | |
73 | va_list arg; | |
74 | { | |
b34976b6 | 75 | bfd_boolean fatal = FALSE; |
252b5132 RH |
76 | |
77 | while (*fmt != '\0') | |
78 | { | |
6d5e62f8 | 79 | while (*fmt != '%' && *fmt != '\0') |
252b5132 RH |
80 | { |
81 | putc (*fmt, fp); | |
82 | fmt++; | |
83 | } | |
84 | ||
6d5e62f8 | 85 | if (*fmt == '%') |
252b5132 | 86 | { |
6d5e62f8 KH |
87 | fmt++; |
88 | switch (*fmt++) | |
252b5132 RH |
89 | { |
90 | default: | |
6d5e62f8 | 91 | fprintf (fp, "%%%c", fmt[-1]); |
252b5132 RH |
92 | break; |
93 | ||
94 | case '%': | |
95 | /* literal % */ | |
96 | putc ('%', fp); | |
97 | break; | |
98 | ||
99 | case 'X': | |
100 | /* no object output, fail return */ | |
b34976b6 | 101 | config.make_executable = FALSE; |
252b5132 RH |
102 | break; |
103 | ||
104 | case 'V': | |
105 | /* hex bfd_vma */ | |
106 | { | |
107 | bfd_vma value = va_arg (arg, bfd_vma); | |
108 | fprintf_vma (fp, value); | |
109 | } | |
110 | break; | |
111 | ||
112 | case 'v': | |
113 | /* hex bfd_vma, no leading zeros */ | |
114 | { | |
115 | char buf[100]; | |
116 | char *p = buf; | |
117 | bfd_vma value = va_arg (arg, bfd_vma); | |
118 | sprintf_vma (p, value); | |
119 | while (*p == '0') | |
120 | p++; | |
121 | if (!*p) | |
122 | p--; | |
123 | fputs (p, fp); | |
124 | } | |
125 | break; | |
126 | ||
127 | case 'W': | |
128 | /* hex bfd_vma with 0x with no leading zeroes taking up | |
129 | 8 spaces. */ | |
130 | { | |
131 | char buf[100]; | |
132 | bfd_vma value; | |
133 | char *p; | |
134 | int len; | |
135 | ||
136 | value = va_arg (arg, bfd_vma); | |
137 | sprintf_vma (buf, value); | |
138 | for (p = buf; *p == '0'; ++p) | |
139 | ; | |
140 | if (*p == '\0') | |
141 | --p; | |
142 | len = strlen (p); | |
143 | while (len < 8) | |
144 | { | |
145 | putc (' ', fp); | |
146 | ++len; | |
147 | } | |
148 | fprintf (fp, "0x%s", p); | |
149 | } | |
150 | break; | |
151 | ||
152 | case 'T': | |
153 | /* Symbol name. */ | |
154 | { | |
155 | const char *name = va_arg (arg, const char *); | |
156 | ||
157 | if (name == (const char *) NULL || *name == 0) | |
158 | fprintf (fp, _("no symbol")); | |
159 | else if (! demangling) | |
160 | fprintf (fp, "%s", name); | |
161 | else | |
162 | { | |
163 | char *demangled; | |
164 | ||
165 | demangled = demangle (name); | |
166 | fprintf (fp, "%s", demangled); | |
167 | free (demangled); | |
168 | } | |
169 | } | |
170 | break; | |
171 | ||
172 | case 'B': | |
173 | /* filename from a bfd */ | |
6d5e62f8 | 174 | { |
252b5132 RH |
175 | bfd *abfd = va_arg (arg, bfd *); |
176 | if (abfd->my_archive) | |
177 | fprintf (fp, "%s(%s)", abfd->my_archive->filename, | |
178 | abfd->filename); | |
179 | else | |
180 | fprintf (fp, "%s", abfd->filename); | |
181 | } | |
182 | break; | |
183 | ||
184 | case 'F': | |
6d5e62f8 | 185 | /* Error is fatal. */ |
b34976b6 | 186 | fatal = TRUE; |
252b5132 RH |
187 | break; |
188 | ||
189 | case 'P': | |
6d5e62f8 | 190 | /* Print program name. */ |
252b5132 RH |
191 | fprintf (fp, "%s", program_name); |
192 | break; | |
193 | ||
194 | case 'E': | |
195 | /* current bfd error or errno */ | |
305c7206 | 196 | fprintf (fp, "%s", bfd_errmsg (bfd_get_error ())); |
252b5132 RH |
197 | break; |
198 | ||
199 | case 'I': | |
200 | /* filename from a lang_input_statement_type */ | |
201 | { | |
202 | lang_input_statement_type *i; | |
203 | ||
204 | i = va_arg (arg, lang_input_statement_type *); | |
205 | if (bfd_my_archive (i->the_bfd) != NULL) | |
206 | fprintf (fp, "(%s)", | |
207 | bfd_get_filename (bfd_my_archive (i->the_bfd))); | |
208 | fprintf (fp, "%s", i->local_sym_name); | |
209 | if (bfd_my_archive (i->the_bfd) == NULL | |
210 | && strcmp (i->local_sym_name, i->filename) != 0) | |
211 | fprintf (fp, " (%s)", i->filename); | |
212 | } | |
213 | break; | |
214 | ||
215 | case 'S': | |
6d5e62f8 | 216 | /* Print script file and linenumber. */ |
252b5132 RH |
217 | if (parsing_defsym) |
218 | fprintf (fp, "--defsym %s", lex_string); | |
219 | else if (ldfile_input_filename != NULL) | |
220 | fprintf (fp, "%s:%u", ldfile_input_filename, lineno); | |
221 | else | |
222 | fprintf (fp, _("built in linker script:%u"), lineno); | |
223 | break; | |
224 | ||
225 | case 'R': | |
6d5e62f8 | 226 | /* Print all that's interesting about a relent. */ |
252b5132 RH |
227 | { |
228 | arelent *relent = va_arg (arg, arelent *); | |
6d5e62f8 | 229 | |
252b5132 RH |
230 | lfinfo (fp, "%s+0x%v (type %s)", |
231 | (*(relent->sym_ptr_ptr))->name, | |
232 | relent->addend, | |
233 | relent->howto->name); | |
234 | } | |
235 | break; | |
6d5e62f8 | 236 | |
252b5132 RH |
237 | case 'C': |
238 | case 'D': | |
239 | case 'G': | |
5cfb2bb2 AM |
240 | /* Clever filename:linenumber with function name if possible. |
241 | The arguments are a BFD, a section, and an offset. */ | |
252b5132 RH |
242 | { |
243 | static bfd *last_bfd; | |
244 | static char *last_file = NULL; | |
245 | static char *last_function = NULL; | |
246 | bfd *abfd; | |
247 | asection *section; | |
248 | bfd_vma offset; | |
249 | lang_input_statement_type *entry; | |
250 | asymbol **asymbols; | |
251 | const char *filename; | |
252 | const char *functionname; | |
253 | unsigned int linenumber; | |
b34976b6 | 254 | bfd_boolean discard_last; |
252b5132 RH |
255 | |
256 | abfd = va_arg (arg, bfd *); | |
257 | section = va_arg (arg, asection *); | |
258 | offset = va_arg (arg, bfd_vma); | |
259 | ||
260 | entry = (lang_input_statement_type *) abfd->usrdata; | |
261 | if (entry != (lang_input_statement_type *) NULL | |
262 | && entry->asymbols != (asymbol **) NULL) | |
263 | asymbols = entry->asymbols; | |
264 | else | |
265 | { | |
266 | long symsize; | |
267 | long symbol_count; | |
268 | ||
269 | symsize = bfd_get_symtab_upper_bound (abfd); | |
270 | if (symsize < 0) | |
271 | einfo (_("%B%F: could not read symbols\n"), abfd); | |
272 | asymbols = (asymbol **) xmalloc (symsize); | |
273 | symbol_count = bfd_canonicalize_symtab (abfd, asymbols); | |
274 | if (symbol_count < 0) | |
275 | einfo (_("%B%F: could not read symbols\n"), abfd); | |
276 | if (entry != (lang_input_statement_type *) NULL) | |
277 | { | |
278 | entry->asymbols = asymbols; | |
279 | entry->symbol_count = symbol_count; | |
280 | } | |
281 | } | |
282 | ||
5cfb2bb2 AM |
283 | lfinfo (fp, "%B(%s+0x%v)", abfd, section->name, offset); |
284 | ||
b34976b6 | 285 | discard_last = TRUE; |
252b5132 RH |
286 | if (bfd_find_nearest_line (abfd, section, asymbols, offset, |
287 | &filename, &functionname, | |
288 | &linenumber)) | |
289 | { | |
b34976b6 | 290 | bfd_boolean need_colon = TRUE; |
252b5132 | 291 | |
5cfb2bb2 AM |
292 | if (functionname != NULL && fmt[-1] == 'C') |
293 | { | |
252b5132 RH |
294 | if (last_bfd == NULL |
295 | || last_file == NULL | |
296 | || last_function == NULL | |
297 | || last_bfd != abfd | |
5cfb2bb2 AM |
298 | || (filename != NULL |
299 | && strcmp (last_file, filename) != 0) | |
252b5132 RH |
300 | || strcmp (last_function, functionname) != 0) |
301 | { | |
5cfb2bb2 AM |
302 | lfinfo (fp, _(": In function `%T':\n"), |
303 | functionname); | |
b34976b6 | 304 | need_colon = FALSE; |
252b5132 RH |
305 | |
306 | last_bfd = abfd; | |
307 | if (last_file != NULL) | |
308 | free (last_file); | |
5cfb2bb2 AM |
309 | last_file = NULL; |
310 | if (filename) | |
311 | last_file = xstrdup (filename); | |
252b5132 RH |
312 | if (last_function != NULL) |
313 | free (last_function); | |
d1b2b2dc | 314 | last_function = xstrdup (functionname); |
252b5132 | 315 | } |
b34976b6 | 316 | discard_last = FALSE; |
252b5132 | 317 | } |
5cfb2bb2 AM |
318 | |
319 | if (filename != NULL) | |
252b5132 | 320 | { |
5cfb2bb2 AM |
321 | if (need_colon) |
322 | putc (':', fp); | |
323 | fputs (filename, fp); | |
252b5132 | 324 | } |
5cfb2bb2 AM |
325 | |
326 | if (functionname != NULL && fmt[-1] == 'G') | |
327 | lfinfo (fp, ":%T", functionname); | |
328 | else if (filename != NULL && linenumber != 0) | |
329 | fprintf (fp, ":%u", linenumber); | |
252b5132 | 330 | } |
252b5132 | 331 | |
5ed6aba4 NC |
332 | if (asymbols != NULL && entry == NULL) |
333 | free (asymbols); | |
334 | ||
252b5132 RH |
335 | if (discard_last) |
336 | { | |
337 | last_bfd = NULL; | |
338 | if (last_file != NULL) | |
339 | { | |
340 | free (last_file); | |
341 | last_file = NULL; | |
342 | } | |
343 | if (last_function != NULL) | |
344 | { | |
345 | free (last_function); | |
346 | last_function = NULL; | |
347 | } | |
348 | } | |
349 | } | |
350 | break; | |
6d5e62f8 | 351 | |
252b5132 RH |
352 | case 's': |
353 | /* arbitrary string, like printf */ | |
354 | fprintf (fp, "%s", va_arg (arg, char *)); | |
355 | break; | |
356 | ||
357 | case 'd': | |
358 | /* integer, like printf */ | |
359 | fprintf (fp, "%d", va_arg (arg, int)); | |
360 | break; | |
361 | ||
362 | case 'u': | |
363 | /* unsigned integer, like printf */ | |
364 | fprintf (fp, "%u", va_arg (arg, unsigned int)); | |
365 | break; | |
366 | } | |
367 | } | |
368 | } | |
369 | ||
7ce691ae | 370 | if (config.fatal_warnings) |
b34976b6 | 371 | config.make_executable = FALSE; |
7ce691ae | 372 | |
b34976b6 | 373 | if (fatal) |
6d5e62f8 | 374 | xexit (1); |
252b5132 RH |
375 | } |
376 | ||
b7b482a3 AM |
377 | /* Wrapper around cplus_demangle. Strips leading underscores and |
378 | other such chars that would otherwise confuse the demangler. */ | |
379 | ||
380 | char * | |
381 | demangle (name) | |
382 | const char *name; | |
383 | { | |
384 | char *res; | |
385 | const char *p; | |
386 | ||
387 | if (output_bfd != NULL | |
388 | && bfd_get_symbol_leading_char (output_bfd) == name[0]) | |
389 | ++name; | |
390 | ||
391 | /* This is a hack for better error reporting on XCOFF, PowerPC64-ELF | |
392 | or the MS PE format. These formats have a number of leading '.'s | |
393 | on at least some symbols, so we remove all dots to avoid | |
394 | confusing the demangler. */ | |
395 | p = name; | |
396 | while (*p == '.') | |
397 | ++p; | |
398 | ||
399 | res = cplus_demangle (p, DMGL_ANSI | DMGL_PARAMS); | |
400 | if (res) | |
401 | { | |
402 | size_t dots = p - name; | |
403 | ||
404 | /* Now put back any stripped dots. */ | |
405 | if (dots != 0) | |
406 | { | |
407 | size_t len = strlen (res) + 1; | |
408 | char *add_dots = xmalloc (len + dots); | |
409 | ||
410 | memcpy (add_dots, name, dots); | |
411 | memcpy (add_dots + dots, res, len); | |
412 | free (res); | |
413 | res = add_dots; | |
414 | } | |
415 | return res; | |
416 | } | |
417 | return xstrdup (name); | |
418 | } | |
419 | ||
6d5e62f8 | 420 | /* Format info message and print on stdout. */ |
252b5132 RH |
421 | |
422 | /* (You would think this should be called just "info", but then you | |
423 | would hosed by LynxOS, which defines that name in its libc.) */ | |
424 | ||
425 | void | |
d5e0ebeb | 426 | info_msg VPARAMS ((const char *fmt, ...)) |
252b5132 | 427 | { |
d5e0ebeb AM |
428 | VA_OPEN (arg, fmt); |
429 | VA_FIXEDARG (arg, const char *, fmt); | |
252b5132 RH |
430 | |
431 | vfinfo (stdout, fmt, arg); | |
d5e0ebeb | 432 | VA_CLOSE (arg); |
252b5132 RH |
433 | } |
434 | ||
6d5e62f8 | 435 | /* ('e' for error.) Format info message and print on stderr. */ |
252b5132 RH |
436 | |
437 | void | |
d5e0ebeb | 438 | einfo VPARAMS ((const char *fmt, ...)) |
252b5132 | 439 | { |
d5e0ebeb AM |
440 | VA_OPEN (arg, fmt); |
441 | VA_FIXEDARG (arg, const char *, fmt); | |
252b5132 RH |
442 | |
443 | vfinfo (stderr, fmt, arg); | |
d5e0ebeb | 444 | VA_CLOSE (arg); |
252b5132 RH |
445 | } |
446 | ||
6d5e62f8 | 447 | void |
252b5132 RH |
448 | info_assert (file, line) |
449 | const char *file; | |
450 | unsigned int line; | |
451 | { | |
452 | einfo (_("%F%P: internal error %s %d\n"), file, line); | |
453 | } | |
454 | ||
6d5e62f8 | 455 | /* ('m' for map) Format info message and print on map. */ |
252b5132 RH |
456 | |
457 | void | |
d5e0ebeb | 458 | minfo VPARAMS ((const char *fmt, ...)) |
252b5132 | 459 | { |
d5e0ebeb AM |
460 | VA_OPEN (arg, fmt); |
461 | VA_FIXEDARG (arg, const char *, fmt); | |
252b5132 RH |
462 | |
463 | vfinfo (config.map_file, fmt, arg); | |
d5e0ebeb | 464 | VA_CLOSE (arg); |
252b5132 RH |
465 | } |
466 | ||
467 | void | |
d5e0ebeb | 468 | lfinfo VPARAMS ((FILE *file, const char *fmt, ...)) |
252b5132 | 469 | { |
d5e0ebeb AM |
470 | VA_OPEN (arg, fmt); |
471 | VA_FIXEDARG (arg, FILE *, file); | |
472 | VA_FIXEDARG (arg, const char *, fmt); | |
252b5132 RH |
473 | |
474 | vfinfo (file, fmt, arg); | |
d5e0ebeb | 475 | VA_CLOSE (arg); |
252b5132 RH |
476 | } |
477 | \f | |
478 | /* Functions to print the link map. */ | |
479 | ||
6d5e62f8 | 480 | void |
252b5132 RH |
481 | print_space () |
482 | { | |
483 | fprintf (config.map_file, " "); | |
484 | } | |
485 | ||
6d5e62f8 | 486 | void |
252b5132 RH |
487 | print_nl () |
488 | { | |
489 | fprintf (config.map_file, "\n"); | |
490 | } | |
45455cdd ILT |
491 | |
492 | /* A more or less friendly abort message. In ld.h abort is defined to | |
493 | call this function. */ | |
494 | ||
495 | void | |
496 | ld_abort (file, line, fn) | |
497 | const char *file; | |
498 | int line; | |
499 | const char *fn; | |
500 | { | |
501 | if (fn != NULL) | |
502 | einfo (_("%P: internal error: aborting at %s line %d in %s\n"), | |
503 | file, line, fn); | |
504 | else | |
505 | einfo (_("%P: internal error: aborting at %s line %d\n"), | |
506 | file, line); | |
507 | einfo (_("%P%F: please report this bug\n")); | |
508 | xexit (1); | |
509 | } | |
0f0569c4 L |
510 | |
511 | bfd_boolean | |
6f6f27f8 | 512 | error_handler VPARAMS ((int id, const char *fmt, ...)) |
0f0569c4 L |
513 | { |
514 | VA_OPEN (arg, fmt); | |
515 | VA_FIXEDARG (arg, const char *, fmt); | |
516 | ||
6f6f27f8 L |
517 | va_start (arg, fmt); |
518 | ||
519 | switch (id) | |
520 | { | |
521 | default: | |
522 | break; | |
523 | ||
524 | /* We can be called with | |
525 | ||
526 | error_handler (-LD_DEFINITION_IN_DISCARDED_SECTION, "", 0); | |
527 | ||
528 | to make this error non-fatal and | |
529 | ||
530 | error_handler (-LD_DEFINITION_IN_DISCARDED_SECTION, "", 1); | |
531 | ||
532 | to make this error fatal. */ | |
533 | case -LD_DEFINITION_IN_DISCARDED_SECTION: | |
534 | case LD_DEFINITION_IN_DISCARDED_SECTION: | |
535 | { | |
536 | static struct bfd_hash_table *hash; | |
537 | static int fatal = 1; | |
538 | const char *name; | |
539 | ||
540 | if (id == -LD_DEFINITION_IN_DISCARDED_SECTION) | |
541 | { | |
542 | fatal = va_arg (arg, int); | |
543 | goto out; | |
544 | } | |
545 | ||
546 | name = va_arg (arg, const char *); | |
547 | /* Only warn once about a particular undefined symbol. */ | |
548 | if (hash == NULL) | |
549 | { | |
550 | hash = ((struct bfd_hash_table *) | |
551 | xmalloc (sizeof (struct bfd_hash_table))); | |
552 | if (! bfd_hash_table_init (hash, bfd_hash_newfunc)) | |
553 | einfo (_("%F%P: bfd_hash_table_init failed: %E\n")); | |
554 | } | |
555 | ||
556 | if (bfd_hash_lookup (hash, name, FALSE, FALSE) != NULL) | |
557 | goto out; | |
558 | ||
559 | if (bfd_hash_lookup (hash, name, TRUE, TRUE) == NULL) | |
560 | einfo (_("%F%P: bfd_hash_lookup failed: %E\n")); | |
561 | ||
562 | if (fatal) | |
563 | config.make_executable = FALSE; | |
564 | } | |
565 | break; | |
566 | } | |
0f0569c4 | 567 | vfinfo (stderr, fmt, arg); |
6f6f27f8 | 568 | out: |
0f0569c4 L |
569 | VA_CLOSE (arg); |
570 | return TRUE; | |
571 | } |