Commit | Line | Data |
---|---|---|
252b5132 | 1 | /* ldmisc.c |
d003868e | 2 | Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, |
aef6203b | 3 | 2001, 2002, 2003, 2004, 2005 |
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 | |
75be928b NC |
21 | Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA |
22 | 02110-1301, 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" | |
252b5132 | 29 | #include <stdarg.h> |
252b5132 RH |
30 | #include "ld.h" |
31 | #include "ldmisc.h" | |
32 | #include "ldexp.h" | |
33 | #include "ldlang.h" | |
df2a7313 | 34 | #include <ldgram.h> |
252b5132 RH |
35 | #include "ldlex.h" |
36 | #include "ldmain.h" | |
37 | #include "ldfile.h" | |
d003868e | 38 | #include "elf-bfd.h" |
252b5132 | 39 | |
252b5132 RH |
40 | /* |
41 | %% literal % | |
d003868e AM |
42 | %A section name from a section |
43 | %B filename from a bfd | |
44 | %C clever filename:linenumber with function | |
45 | %D like %C, but no function name | |
46 | %E current bfd error or errno | |
252b5132 | 47 | %F error is fatal |
d003868e AM |
48 | %G like %D, but only function name |
49 | %I filename from a lang_input_statement_type | |
252b5132 | 50 | %P print program name |
d003868e | 51 | %R info about a relent |
252b5132 | 52 | %S print script file and linenumber |
252b5132 | 53 | %T symbol name |
252b5132 | 54 | %V hex bfd_vma |
252b5132 | 55 | %W hex bfd_vma with 0x with no leading zeros taking up 8 spaces |
d003868e | 56 | %X no object output, fail return |
252b5132 | 57 | %d integer, like printf |
94b50910 AM |
58 | %ld long, like printf |
59 | %lu unsigned long, like printf | |
d003868e | 60 | %s arbitrary string, like printf |
252b5132 | 61 | %u integer, like printf |
d003868e | 62 | %v hex bfd_vma, no leading zeros |
252b5132 RH |
63 | */ |
64 | ||
252b5132 | 65 | static void |
59ef2528 | 66 | vfinfo (FILE *fp, const char *fmt, va_list arg, bfd_boolean is_warning) |
252b5132 | 67 | { |
b34976b6 | 68 | bfd_boolean fatal = FALSE; |
252b5132 RH |
69 | |
70 | while (*fmt != '\0') | |
71 | { | |
6d5e62f8 | 72 | while (*fmt != '%' && *fmt != '\0') |
252b5132 RH |
73 | { |
74 | putc (*fmt, fp); | |
75 | fmt++; | |
76 | } | |
77 | ||
6d5e62f8 | 78 | if (*fmt == '%') |
252b5132 | 79 | { |
6d5e62f8 KH |
80 | fmt++; |
81 | switch (*fmt++) | |
252b5132 | 82 | { |
252b5132 RH |
83 | case '%': |
84 | /* literal % */ | |
85 | putc ('%', fp); | |
86 | break; | |
87 | ||
88 | case 'X': | |
89 | /* no object output, fail return */ | |
b34976b6 | 90 | config.make_executable = FALSE; |
252b5132 RH |
91 | break; |
92 | ||
93 | case 'V': | |
94 | /* hex bfd_vma */ | |
95 | { | |
96 | bfd_vma value = va_arg (arg, bfd_vma); | |
97 | fprintf_vma (fp, value); | |
98 | } | |
99 | break; | |
100 | ||
101 | case 'v': | |
102 | /* hex bfd_vma, no leading zeros */ | |
103 | { | |
104 | char buf[100]; | |
105 | char *p = buf; | |
106 | bfd_vma value = va_arg (arg, bfd_vma); | |
107 | sprintf_vma (p, value); | |
108 | while (*p == '0') | |
109 | p++; | |
110 | if (!*p) | |
111 | p--; | |
112 | fputs (p, fp); | |
113 | } | |
114 | break; | |
115 | ||
116 | case 'W': | |
117 | /* hex bfd_vma with 0x with no leading zeroes taking up | |
1579bae1 | 118 | 8 spaces. */ |
252b5132 RH |
119 | { |
120 | char buf[100]; | |
121 | bfd_vma value; | |
122 | char *p; | |
123 | int len; | |
124 | ||
125 | value = va_arg (arg, bfd_vma); | |
126 | sprintf_vma (buf, value); | |
127 | for (p = buf; *p == '0'; ++p) | |
128 | ; | |
129 | if (*p == '\0') | |
130 | --p; | |
131 | len = strlen (p); | |
132 | while (len < 8) | |
133 | { | |
134 | putc (' ', fp); | |
135 | ++len; | |
136 | } | |
137 | fprintf (fp, "0x%s", p); | |
138 | } | |
139 | break; | |
140 | ||
141 | case 'T': | |
142 | /* Symbol name. */ | |
143 | { | |
144 | const char *name = va_arg (arg, const char *); | |
145 | ||
1579bae1 | 146 | if (name == NULL || *name == 0) |
252b5132 RH |
147 | fprintf (fp, _("no symbol")); |
148 | else if (! demangling) | |
149 | fprintf (fp, "%s", name); | |
150 | else | |
151 | { | |
152 | char *demangled; | |
153 | ||
154 | demangled = demangle (name); | |
155 | fprintf (fp, "%s", demangled); | |
156 | free (demangled); | |
157 | } | |
158 | } | |
159 | break; | |
160 | ||
d003868e AM |
161 | case 'A': |
162 | /* section name from a section */ | |
163 | { | |
164 | asection *sec = va_arg (arg, asection *); | |
165 | bfd *abfd = sec->owner; | |
166 | const char *group = NULL; | |
167 | struct coff_comdat_info *ci; | |
168 | ||
169 | fprintf (fp, "%s", sec->name); | |
170 | if (abfd != NULL | |
171 | && bfd_get_flavour (abfd) == bfd_target_elf_flavour | |
172 | && elf_next_in_group (sec) != NULL | |
173 | && (sec->flags & SEC_GROUP) == 0) | |
174 | group = elf_group_name (sec); | |
175 | else if (abfd != NULL | |
176 | && bfd_get_flavour (abfd) == bfd_target_coff_flavour | |
177 | && (ci = bfd_coff_get_comdat_section (sec->owner, | |
178 | sec)) != NULL) | |
179 | group = ci->name; | |
180 | if (group != NULL) | |
181 | fprintf (fp, "[%s]", group); | |
182 | } | |
183 | break; | |
184 | ||
252b5132 RH |
185 | case 'B': |
186 | /* filename from a bfd */ | |
6d5e62f8 | 187 | { |
252b5132 | 188 | bfd *abfd = va_arg (arg, bfd *); |
f2763b01 NC |
189 | |
190 | if (abfd == NULL) | |
e1fffbe6 | 191 | fprintf (fp, "%s generated", program_name); |
f2763b01 | 192 | else if (abfd->my_archive) |
252b5132 RH |
193 | fprintf (fp, "%s(%s)", abfd->my_archive->filename, |
194 | abfd->filename); | |
195 | else | |
196 | fprintf (fp, "%s", abfd->filename); | |
197 | } | |
198 | break; | |
199 | ||
200 | case 'F': | |
6d5e62f8 | 201 | /* Error is fatal. */ |
b34976b6 | 202 | fatal = TRUE; |
252b5132 RH |
203 | break; |
204 | ||
205 | case 'P': | |
6d5e62f8 | 206 | /* Print program name. */ |
252b5132 RH |
207 | fprintf (fp, "%s", program_name); |
208 | break; | |
209 | ||
210 | case 'E': | |
211 | /* current bfd error or errno */ | |
305c7206 | 212 | fprintf (fp, "%s", bfd_errmsg (bfd_get_error ())); |
252b5132 RH |
213 | break; |
214 | ||
215 | case 'I': | |
216 | /* filename from a lang_input_statement_type */ | |
217 | { | |
218 | lang_input_statement_type *i; | |
219 | ||
220 | i = va_arg (arg, lang_input_statement_type *); | |
221 | if (bfd_my_archive (i->the_bfd) != NULL) | |
222 | fprintf (fp, "(%s)", | |
223 | bfd_get_filename (bfd_my_archive (i->the_bfd))); | |
224 | fprintf (fp, "%s", i->local_sym_name); | |
225 | if (bfd_my_archive (i->the_bfd) == NULL | |
226 | && strcmp (i->local_sym_name, i->filename) != 0) | |
227 | fprintf (fp, " (%s)", i->filename); | |
228 | } | |
229 | break; | |
230 | ||
231 | case 'S': | |
6d5e62f8 | 232 | /* Print script file and linenumber. */ |
252b5132 RH |
233 | if (parsing_defsym) |
234 | fprintf (fp, "--defsym %s", lex_string); | |
235 | else if (ldfile_input_filename != NULL) | |
236 | fprintf (fp, "%s:%u", ldfile_input_filename, lineno); | |
237 | else | |
238 | fprintf (fp, _("built in linker script:%u"), lineno); | |
239 | break; | |
240 | ||
241 | case 'R': | |
6d5e62f8 | 242 | /* Print all that's interesting about a relent. */ |
252b5132 RH |
243 | { |
244 | arelent *relent = va_arg (arg, arelent *); | |
6d5e62f8 | 245 | |
252b5132 RH |
246 | lfinfo (fp, "%s+0x%v (type %s)", |
247 | (*(relent->sym_ptr_ptr))->name, | |
248 | relent->addend, | |
249 | relent->howto->name); | |
250 | } | |
251 | break; | |
6d5e62f8 | 252 | |
252b5132 RH |
253 | case 'C': |
254 | case 'D': | |
255 | case 'G': | |
5cfb2bb2 AM |
256 | /* Clever filename:linenumber with function name if possible. |
257 | The arguments are a BFD, a section, and an offset. */ | |
252b5132 RH |
258 | { |
259 | static bfd *last_bfd; | |
260 | static char *last_file = NULL; | |
261 | static char *last_function = NULL; | |
262 | bfd *abfd; | |
263 | asection *section; | |
264 | bfd_vma offset; | |
265 | lang_input_statement_type *entry; | |
266 | asymbol **asymbols; | |
267 | const char *filename; | |
268 | const char *functionname; | |
269 | unsigned int linenumber; | |
b34976b6 | 270 | bfd_boolean discard_last; |
252b5132 RH |
271 | |
272 | abfd = va_arg (arg, bfd *); | |
273 | section = va_arg (arg, asection *); | |
274 | offset = va_arg (arg, bfd_vma); | |
275 | ||
e1fffbe6 AM |
276 | if (abfd == NULL) |
277 | { | |
278 | entry = NULL; | |
279 | asymbols = NULL; | |
280 | } | |
252b5132 RH |
281 | else |
282 | { | |
e1fffbe6 AM |
283 | entry = (lang_input_statement_type *) abfd->usrdata; |
284 | if (entry != (lang_input_statement_type *) NULL | |
285 | && entry->asymbols != (asymbol **) NULL) | |
286 | asymbols = entry->asymbols; | |
287 | else | |
252b5132 | 288 | { |
e1fffbe6 AM |
289 | long symsize; |
290 | long sym_count; | |
291 | ||
292 | symsize = bfd_get_symtab_upper_bound (abfd); | |
293 | if (symsize < 0) | |
294 | einfo (_("%B%F: could not read symbols\n"), abfd); | |
295 | asymbols = xmalloc (symsize); | |
296 | sym_count = bfd_canonicalize_symtab (abfd, asymbols); | |
297 | if (sym_count < 0) | |
298 | einfo (_("%B%F: could not read symbols\n"), abfd); | |
299 | if (entry != (lang_input_statement_type *) NULL) | |
300 | { | |
301 | entry->asymbols = asymbols; | |
302 | entry->symbol_count = sym_count; | |
303 | } | |
252b5132 RH |
304 | } |
305 | } | |
306 | ||
e1fffbe6 AM |
307 | /* The GNU Coding Standard requires that error messages |
308 | be of the form: | |
98d87ee7 NC |
309 | |
310 | source-file-name:lineno: message | |
5cfb2bb2 | 311 | |
e1fffbe6 AM |
312 | We do not always have a line number available so if |
313 | we cannot find them we print out the section name and | |
314 | offset instread. */ | |
b34976b6 | 315 | discard_last = TRUE; |
e1fffbe6 AM |
316 | if (abfd != NULL |
317 | && bfd_find_nearest_line (abfd, section, asymbols, offset, | |
318 | &filename, &functionname, | |
319 | &linenumber)) | |
252b5132 | 320 | { |
5cfb2bb2 AM |
321 | if (functionname != NULL && fmt[-1] == 'C') |
322 | { | |
e1fffbe6 AM |
323 | /* Detect the case where we are printing out a |
324 | message for the same function as the last | |
325 | call to vinfo ("%C"). In this situation do | |
326 | not print out the ABFD filename or the | |
327 | function name again. Note - we do still | |
328 | print out the source filename, as this will | |
329 | allow programs that parse the linker's output | |
330 | (eg emacs) to correctly locate multiple | |
331 | errors in the same source file. */ | |
252b5132 RH |
332 | if (last_bfd == NULL |
333 | || last_file == NULL | |
334 | || last_function == NULL | |
335 | || last_bfd != abfd | |
5cfb2bb2 AM |
336 | || (filename != NULL |
337 | && strcmp (last_file, filename) != 0) | |
252b5132 RH |
338 | || strcmp (last_function, functionname) != 0) |
339 | { | |
f0e0fb23 | 340 | lfinfo (fp, _("%B: In function `%T'"), |
98d87ee7 | 341 | abfd, functionname); |
252b5132 RH |
342 | |
343 | last_bfd = abfd; | |
344 | if (last_file != NULL) | |
345 | free (last_file); | |
5cfb2bb2 AM |
346 | last_file = NULL; |
347 | if (filename) | |
348 | last_file = xstrdup (filename); | |
252b5132 RH |
349 | if (last_function != NULL) |
350 | free (last_function); | |
d1b2b2dc | 351 | last_function = xstrdup (functionname); |
252b5132 | 352 | } |
b34976b6 | 353 | discard_last = FALSE; |
252b5132 | 354 | } |
98d87ee7 | 355 | else |
f0e0fb23 | 356 | lfinfo (fp, "%B", abfd); |
5cfb2bb2 AM |
357 | |
358 | if (filename != NULL) | |
f0e0fb23 | 359 | fprintf (fp, ":%s", filename); |
5cfb2bb2 AM |
360 | |
361 | if (functionname != NULL && fmt[-1] == 'G') | |
f0e0fb23 | 362 | lfinfo (fp, ":%T", functionname); |
98d87ee7 NC |
363 | else if (filename != NULL) |
364 | { | |
365 | if (linenumber != 0) | |
f0e0fb23 | 366 | fprintf (fp, ":%u", linenumber); |
98d87ee7 | 367 | else |
f0e0fb23 | 368 | lfinfo (fp, ":(%A+0x%v)", section, offset); |
98d87ee7 | 369 | } |
252b5132 | 370 | } |
98d87ee7 NC |
371 | else |
372 | lfinfo (fp, "%B:(%A+0x%v)", abfd, section, offset); | |
252b5132 | 373 | |
5ed6aba4 NC |
374 | if (asymbols != NULL && entry == NULL) |
375 | free (asymbols); | |
376 | ||
252b5132 RH |
377 | if (discard_last) |
378 | { | |
379 | last_bfd = NULL; | |
380 | if (last_file != NULL) | |
381 | { | |
382 | free (last_file); | |
383 | last_file = NULL; | |
384 | } | |
385 | if (last_function != NULL) | |
386 | { | |
387 | free (last_function); | |
388 | last_function = NULL; | |
389 | } | |
390 | } | |
391 | } | |
392 | break; | |
6d5e62f8 | 393 | |
252b5132 RH |
394 | case 's': |
395 | /* arbitrary string, like printf */ | |
396 | fprintf (fp, "%s", va_arg (arg, char *)); | |
397 | break; | |
398 | ||
399 | case 'd': | |
400 | /* integer, like printf */ | |
401 | fprintf (fp, "%d", va_arg (arg, int)); | |
402 | break; | |
403 | ||
404 | case 'u': | |
405 | /* unsigned integer, like printf */ | |
406 | fprintf (fp, "%u", va_arg (arg, unsigned int)); | |
407 | break; | |
94b50910 AM |
408 | |
409 | case 'l': | |
410 | if (*fmt == 'd') | |
411 | { | |
412 | fprintf (fp, "%ld", va_arg (arg, long)); | |
413 | ++fmt; | |
414 | break; | |
415 | } | |
416 | else if (*fmt == 'u') | |
417 | { | |
418 | fprintf (fp, "%lu", va_arg (arg, unsigned long)); | |
419 | ++fmt; | |
420 | break; | |
421 | } | |
422 | /* Fall thru */ | |
423 | ||
424 | default: | |
425 | fprintf (fp, "%%%c", fmt[-1]); | |
426 | break; | |
252b5132 RH |
427 | } |
428 | } | |
429 | } | |
430 | ||
59ef2528 | 431 | if (is_warning && config.fatal_warnings) |
b34976b6 | 432 | config.make_executable = FALSE; |
7ce691ae | 433 | |
b34976b6 | 434 | if (fatal) |
6d5e62f8 | 435 | xexit (1); |
252b5132 RH |
436 | } |
437 | ||
b7b482a3 AM |
438 | /* Wrapper around cplus_demangle. Strips leading underscores and |
439 | other such chars that would otherwise confuse the demangler. */ | |
440 | ||
441 | char * | |
1579bae1 | 442 | demangle (const char *name) |
b7b482a3 AM |
443 | { |
444 | char *res; | |
445 | const char *p; | |
446 | ||
447 | if (output_bfd != NULL | |
448 | && bfd_get_symbol_leading_char (output_bfd) == name[0]) | |
449 | ++name; | |
450 | ||
451 | /* This is a hack for better error reporting on XCOFF, PowerPC64-ELF | |
452 | or the MS PE format. These formats have a number of leading '.'s | |
453 | on at least some symbols, so we remove all dots to avoid | |
454 | confusing the demangler. */ | |
455 | p = name; | |
456 | while (*p == '.') | |
457 | ++p; | |
458 | ||
459 | res = cplus_demangle (p, DMGL_ANSI | DMGL_PARAMS); | |
460 | if (res) | |
461 | { | |
462 | size_t dots = p - name; | |
463 | ||
464 | /* Now put back any stripped dots. */ | |
465 | if (dots != 0) | |
466 | { | |
467 | size_t len = strlen (res) + 1; | |
468 | char *add_dots = xmalloc (len + dots); | |
469 | ||
470 | memcpy (add_dots, name, dots); | |
471 | memcpy (add_dots + dots, res, len); | |
472 | free (res); | |
473 | res = add_dots; | |
474 | } | |
475 | return res; | |
476 | } | |
477 | return xstrdup (name); | |
478 | } | |
479 | ||
6d5e62f8 | 480 | /* Format info message and print on stdout. */ |
252b5132 RH |
481 | |
482 | /* (You would think this should be called just "info", but then you | |
1579bae1 | 483 | would be hosed by LynxOS, which defines that name in its libc.) */ |
252b5132 RH |
484 | |
485 | void | |
1579bae1 | 486 | info_msg (const char *fmt, ...) |
252b5132 | 487 | { |
1579bae1 | 488 | va_list arg; |
252b5132 | 489 | |
1579bae1 | 490 | va_start (arg, fmt); |
59ef2528 | 491 | vfinfo (stdout, fmt, arg, FALSE); |
1579bae1 | 492 | va_end (arg); |
252b5132 RH |
493 | } |
494 | ||
6d5e62f8 | 495 | /* ('e' for error.) Format info message and print on stderr. */ |
252b5132 RH |
496 | |
497 | void | |
1579bae1 | 498 | einfo (const char *fmt, ...) |
252b5132 | 499 | { |
1579bae1 | 500 | va_list arg; |
252b5132 | 501 | |
1579bae1 | 502 | va_start (arg, fmt); |
59ef2528 | 503 | vfinfo (stderr, fmt, arg, TRUE); |
1579bae1 | 504 | va_end (arg); |
252b5132 RH |
505 | } |
506 | ||
6d5e62f8 | 507 | void |
1579bae1 | 508 | info_assert (const char *file, unsigned int line) |
252b5132 RH |
509 | { |
510 | einfo (_("%F%P: internal error %s %d\n"), file, line); | |
511 | } | |
512 | ||
6d5e62f8 | 513 | /* ('m' for map) Format info message and print on map. */ |
252b5132 RH |
514 | |
515 | void | |
1579bae1 | 516 | minfo (const char *fmt, ...) |
252b5132 | 517 | { |
1579bae1 | 518 | va_list arg; |
252b5132 | 519 | |
1579bae1 | 520 | va_start (arg, fmt); |
59ef2528 | 521 | vfinfo (config.map_file, fmt, arg, FALSE); |
1579bae1 | 522 | va_end (arg); |
252b5132 RH |
523 | } |
524 | ||
525 | void | |
1579bae1 | 526 | lfinfo (FILE *file, const char *fmt, ...) |
252b5132 | 527 | { |
1579bae1 | 528 | va_list arg; |
252b5132 | 529 | |
1579bae1 | 530 | va_start (arg, fmt); |
59ef2528 | 531 | vfinfo (file, fmt, arg, FALSE); |
1579bae1 | 532 | va_end (arg); |
252b5132 RH |
533 | } |
534 | \f | |
535 | /* Functions to print the link map. */ | |
536 | ||
6d5e62f8 | 537 | void |
1579bae1 | 538 | print_space (void) |
252b5132 RH |
539 | { |
540 | fprintf (config.map_file, " "); | |
541 | } | |
542 | ||
6d5e62f8 | 543 | void |
1579bae1 | 544 | print_nl (void) |
252b5132 RH |
545 | { |
546 | fprintf (config.map_file, "\n"); | |
547 | } | |
45455cdd ILT |
548 | |
549 | /* A more or less friendly abort message. In ld.h abort is defined to | |
550 | call this function. */ | |
551 | ||
552 | void | |
1579bae1 | 553 | ld_abort (const char *file, int line, const char *fn) |
45455cdd ILT |
554 | { |
555 | if (fn != NULL) | |
556 | einfo (_("%P: internal error: aborting at %s line %d in %s\n"), | |
557 | file, line, fn); | |
558 | else | |
559 | einfo (_("%P: internal error: aborting at %s line %d\n"), | |
560 | file, line); | |
561 | einfo (_("%P%F: please report this bug\n")); | |
562 | xexit (1); | |
563 | } |