Commit | Line | Data |
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252b5132 | 1 | /* ldmisc.c |
b90efa5b | 2 | Copyright (C) 1991-2015 Free Software Foundation, Inc. |
252b5132 RH |
3 | Written by Steve Chamberlain of Cygnus Support. |
4 | ||
f96b4a7b | 5 | This file is part of the GNU Binutils. |
252b5132 | 6 | |
f96b4a7b | 7 | This program is free software; you can redistribute it and/or modify |
5ed6aba4 | 8 | it under the terms of the GNU General Public License as published by |
f96b4a7b NC |
9 | the Free Software Foundation; either version 3 of the License, or |
10 | (at your option) any later version. | |
252b5132 | 11 | |
f96b4a7b | 12 | This program is distributed in the hope that it will be useful, |
5ed6aba4 NC |
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. | |
252b5132 | 16 | |
5ed6aba4 | 17 | You should have received a copy of the GNU General Public License |
f96b4a7b NC |
18 | along with this program; if not, write to the Free Software |
19 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, | |
20 | MA 02110-1301, USA. */ | |
252b5132 | 21 | |
3db64b00 | 22 | #include "sysdep.h" |
252b5132 | 23 | #include "bfd.h" |
6f6f27f8 | 24 | #include "bfdlink.h" |
252b5132 | 25 | #include "libiberty.h" |
42627821 | 26 | #include "filenames.h" |
252b5132 | 27 | #include "demangle.h" |
252b5132 | 28 | #include <stdarg.h> |
252b5132 RH |
29 | #include "ld.h" |
30 | #include "ldmisc.h" | |
31 | #include "ldexp.h" | |
32 | #include "ldlang.h" | |
df2a7313 | 33 | #include <ldgram.h> |
252b5132 RH |
34 | #include "ldlex.h" |
35 | #include "ldmain.h" | |
36 | #include "ldfile.h" | |
d003868e | 37 | #include "elf-bfd.h" |
f4943d82 | 38 | #include "coff-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 | 48 | %G like %D, but only function name |
270396f2 | 49 | %H like %C but in addition emit section+offset |
d003868e | 50 | %I filename from a lang_input_statement_type |
252b5132 | 51 | %P print program name |
d003868e | 52 | %R info about a relent |
dab69f68 | 53 | %S print script file and linenumber from etree_type. |
252b5132 | 54 | %T symbol name |
252b5132 | 55 | %V hex bfd_vma |
252b5132 | 56 | %W hex bfd_vma with 0x with no leading zeros taking up 8 spaces |
d003868e | 57 | %X no object output, fail return |
252b5132 | 58 | %d integer, like printf |
94b50910 AM |
59 | %ld long, like printf |
60 | %lu unsigned long, like printf | |
5d3236ee | 61 | %p native (host) void* pointer, like printf |
d003868e | 62 | %s arbitrary string, like printf |
252b5132 | 63 | %u integer, like printf |
d003868e | 64 | %v hex bfd_vma, no leading zeros |
252b5132 RH |
65 | */ |
66 | ||
5d3236ee | 67 | void |
59ef2528 | 68 | vfinfo (FILE *fp, const char *fmt, va_list arg, bfd_boolean is_warning) |
252b5132 | 69 | { |
b34976b6 | 70 | bfd_boolean fatal = FALSE; |
252b5132 RH |
71 | |
72 | while (*fmt != '\0') | |
73 | { | |
23916fff | 74 | const char *str = fmt; |
6d5e62f8 | 75 | while (*fmt != '%' && *fmt != '\0') |
23916fff MF |
76 | fmt++; |
77 | if (fmt != str) | |
78 | if (fwrite (str, 1, fmt - str, fp)) | |
79 | { | |
80 | /* Ignore. */ | |
81 | } | |
252b5132 | 82 | |
6d5e62f8 | 83 | if (*fmt == '%') |
252b5132 | 84 | { |
6d5e62f8 KH |
85 | fmt++; |
86 | switch (*fmt++) | |
252b5132 | 87 | { |
252b5132 RH |
88 | case '%': |
89 | /* literal % */ | |
90 | putc ('%', fp); | |
91 | break; | |
92 | ||
93 | case 'X': | |
94 | /* no object output, fail return */ | |
b34976b6 | 95 | config.make_executable = FALSE; |
252b5132 RH |
96 | break; |
97 | ||
98 | case 'V': | |
99 | /* hex bfd_vma */ | |
100 | { | |
101 | bfd_vma value = va_arg (arg, bfd_vma); | |
102 | fprintf_vma (fp, value); | |
103 | } | |
104 | break; | |
105 | ||
106 | case 'v': | |
107 | /* hex bfd_vma, no leading zeros */ | |
108 | { | |
109 | char buf[100]; | |
110 | char *p = buf; | |
111 | bfd_vma value = va_arg (arg, bfd_vma); | |
112 | sprintf_vma (p, value); | |
113 | while (*p == '0') | |
114 | p++; | |
115 | if (!*p) | |
116 | p--; | |
117 | fputs (p, fp); | |
118 | } | |
119 | break; | |
120 | ||
121 | case 'W': | |
122 | /* hex bfd_vma with 0x with no leading zeroes taking up | |
1579bae1 | 123 | 8 spaces. */ |
252b5132 RH |
124 | { |
125 | char buf[100]; | |
126 | bfd_vma value; | |
127 | char *p; | |
128 | int len; | |
129 | ||
130 | value = va_arg (arg, bfd_vma); | |
131 | sprintf_vma (buf, value); | |
132 | for (p = buf; *p == '0'; ++p) | |
133 | ; | |
134 | if (*p == '\0') | |
135 | --p; | |
136 | len = strlen (p); | |
137 | while (len < 8) | |
138 | { | |
139 | putc (' ', fp); | |
140 | ++len; | |
141 | } | |
142 | fprintf (fp, "0x%s", p); | |
143 | } | |
144 | break; | |
145 | ||
146 | case 'T': | |
147 | /* Symbol name. */ | |
148 | { | |
149 | const char *name = va_arg (arg, const char *); | |
150 | ||
1579bae1 | 151 | if (name == NULL || *name == 0) |
73705ac3 AM |
152 | { |
153 | fprintf (fp, _("no symbol")); | |
154 | break; | |
155 | } | |
156 | else if (demangling) | |
252b5132 RH |
157 | { |
158 | char *demangled; | |
159 | ||
f13a99db | 160 | demangled = bfd_demangle (link_info.output_bfd, name, |
73705ac3 AM |
161 | DMGL_ANSI | DMGL_PARAMS); |
162 | if (demangled != NULL) | |
163 | { | |
164 | fprintf (fp, "%s", demangled); | |
165 | free (demangled); | |
166 | break; | |
167 | } | |
252b5132 | 168 | } |
73705ac3 | 169 | fprintf (fp, "%s", name); |
252b5132 RH |
170 | } |
171 | break; | |
172 | ||
d003868e AM |
173 | case 'A': |
174 | /* section name from a section */ | |
175 | { | |
176 | asection *sec = va_arg (arg, asection *); | |
177 | bfd *abfd = sec->owner; | |
178 | const char *group = NULL; | |
179 | struct coff_comdat_info *ci; | |
180 | ||
181 | fprintf (fp, "%s", sec->name); | |
182 | if (abfd != NULL | |
183 | && bfd_get_flavour (abfd) == bfd_target_elf_flavour | |
184 | && elf_next_in_group (sec) != NULL | |
185 | && (sec->flags & SEC_GROUP) == 0) | |
186 | group = elf_group_name (sec); | |
187 | else if (abfd != NULL | |
188 | && bfd_get_flavour (abfd) == bfd_target_coff_flavour | |
189 | && (ci = bfd_coff_get_comdat_section (sec->owner, | |
190 | sec)) != NULL) | |
191 | group = ci->name; | |
192 | if (group != NULL) | |
193 | fprintf (fp, "[%s]", group); | |
194 | } | |
195 | break; | |
196 | ||
252b5132 RH |
197 | case 'B': |
198 | /* filename from a bfd */ | |
6d5e62f8 | 199 | { |
252b5132 | 200 | bfd *abfd = va_arg (arg, bfd *); |
f2763b01 NC |
201 | |
202 | if (abfd == NULL) | |
e1fffbe6 | 203 | fprintf (fp, "%s generated", program_name); |
f2763b01 | 204 | else if (abfd->my_archive) |
252b5132 RH |
205 | fprintf (fp, "%s(%s)", abfd->my_archive->filename, |
206 | abfd->filename); | |
207 | else | |
208 | fprintf (fp, "%s", abfd->filename); | |
209 | } | |
210 | break; | |
211 | ||
212 | case 'F': | |
6d5e62f8 | 213 | /* Error is fatal. */ |
b34976b6 | 214 | fatal = TRUE; |
252b5132 RH |
215 | break; |
216 | ||
217 | case 'P': | |
6d5e62f8 | 218 | /* Print program name. */ |
252b5132 RH |
219 | fprintf (fp, "%s", program_name); |
220 | break; | |
221 | ||
222 | case 'E': | |
223 | /* current bfd error or errno */ | |
305c7206 | 224 | fprintf (fp, "%s", bfd_errmsg (bfd_get_error ())); |
252b5132 RH |
225 | break; |
226 | ||
227 | case 'I': | |
228 | /* filename from a lang_input_statement_type */ | |
229 | { | |
230 | lang_input_statement_type *i; | |
231 | ||
232 | i = va_arg (arg, lang_input_statement_type *); | |
233 | if (bfd_my_archive (i->the_bfd) != NULL) | |
234 | fprintf (fp, "(%s)", | |
235 | bfd_get_filename (bfd_my_archive (i->the_bfd))); | |
236 | fprintf (fp, "%s", i->local_sym_name); | |
237 | if (bfd_my_archive (i->the_bfd) == NULL | |
42627821 | 238 | && filename_cmp (i->local_sym_name, i->filename) != 0) |
252b5132 RH |
239 | fprintf (fp, " (%s)", i->filename); |
240 | } | |
241 | break; | |
242 | ||
243 | case 'S': | |
6d5e62f8 | 244 | /* Print script file and linenumber. */ |
dab69f68 | 245 | { |
39085894 | 246 | etree_type node; |
dab69f68 AM |
247 | etree_type *tp = va_arg (arg, etree_type *); |
248 | ||
249 | if (tp == NULL) | |
250 | { | |
39085894 | 251 | tp = &node; |
dab69f68 AM |
252 | tp->type.filename = ldlex_filename (); |
253 | tp->type.lineno = lineno; | |
254 | } | |
255 | if (tp->type.filename != NULL) | |
256 | fprintf (fp, "%s:%u", tp->type.filename, tp->type.lineno); | |
257 | } | |
252b5132 RH |
258 | break; |
259 | ||
260 | case 'R': | |
6d5e62f8 | 261 | /* Print all that's interesting about a relent. */ |
252b5132 RH |
262 | { |
263 | arelent *relent = va_arg (arg, arelent *); | |
6d5e62f8 | 264 | |
252b5132 RH |
265 | lfinfo (fp, "%s+0x%v (type %s)", |
266 | (*(relent->sym_ptr_ptr))->name, | |
267 | relent->addend, | |
268 | relent->howto->name); | |
269 | } | |
270 | break; | |
6d5e62f8 | 271 | |
252b5132 RH |
272 | case 'C': |
273 | case 'D': | |
274 | case 'G': | |
270396f2 | 275 | case 'H': |
5cfb2bb2 AM |
276 | /* Clever filename:linenumber with function name if possible. |
277 | The arguments are a BFD, a section, and an offset. */ | |
252b5132 RH |
278 | { |
279 | static bfd *last_bfd; | |
280 | static char *last_file = NULL; | |
281 | static char *last_function = NULL; | |
282 | bfd *abfd; | |
283 | asection *section; | |
284 | bfd_vma offset; | |
5c1d2f5f | 285 | asymbol **asymbols = NULL; |
252b5132 RH |
286 | const char *filename; |
287 | const char *functionname; | |
288 | unsigned int linenumber; | |
b34976b6 | 289 | bfd_boolean discard_last; |
270396f2 | 290 | bfd_boolean done; |
252b5132 RH |
291 | |
292 | abfd = va_arg (arg, bfd *); | |
293 | section = va_arg (arg, asection *); | |
294 | offset = va_arg (arg, bfd_vma); | |
295 | ||
5c1d2f5f | 296 | if (abfd != NULL) |
252b5132 | 297 | { |
5c1d2f5f AM |
298 | if (!bfd_generic_link_read_symbols (abfd)) |
299 | einfo (_("%B%F: could not read symbols: %E\n"), abfd); | |
300 | ||
301 | asymbols = bfd_get_outsymbols (abfd); | |
252b5132 RH |
302 | } |
303 | ||
e1fffbe6 AM |
304 | /* The GNU Coding Standard requires that error messages |
305 | be of the form: | |
e4492aa0 | 306 | |
98d87ee7 | 307 | source-file-name:lineno: message |
5cfb2bb2 | 308 | |
e1fffbe6 AM |
309 | We do not always have a line number available so if |
310 | we cannot find them we print out the section name and | |
270396f2 | 311 | offset instead. */ |
b34976b6 | 312 | discard_last = TRUE; |
e1fffbe6 AM |
313 | if (abfd != NULL |
314 | && bfd_find_nearest_line (abfd, section, asymbols, offset, | |
315 | &filename, &functionname, | |
316 | &linenumber)) | |
252b5132 | 317 | { |
270396f2 AM |
318 | if (functionname != NULL |
319 | && (fmt[-1] == 'C' || fmt[-1] == 'H')) | |
5cfb2bb2 | 320 | { |
e1fffbe6 AM |
321 | /* Detect the case where we are printing out a |
322 | message for the same function as the last | |
323 | call to vinfo ("%C"). In this situation do | |
324 | not print out the ABFD filename or the | |
325 | function name again. Note - we do still | |
326 | print out the source filename, as this will | |
327 | allow programs that parse the linker's output | |
328 | (eg emacs) to correctly locate multiple | |
329 | errors in the same source file. */ | |
252b5132 RH |
330 | if (last_bfd == NULL |
331 | || last_file == NULL | |
332 | || last_function == NULL | |
333 | || last_bfd != abfd | |
5cfb2bb2 | 334 | || (filename != NULL |
42627821 | 335 | && filename_cmp (last_file, filename) != 0) |
252b5132 RH |
336 | || strcmp (last_function, functionname) != 0) |
337 | { | |
a1c16379 | 338 | lfinfo (fp, _("%B: In function `%T':\n"), |
98d87ee7 | 339 | abfd, functionname); |
252b5132 RH |
340 | |
341 | last_bfd = abfd; | |
342 | if (last_file != NULL) | |
343 | free (last_file); | |
5cfb2bb2 AM |
344 | last_file = NULL; |
345 | if (filename) | |
346 | last_file = xstrdup (filename); | |
252b5132 RH |
347 | if (last_function != NULL) |
348 | free (last_function); | |
d1b2b2dc | 349 | last_function = xstrdup (functionname); |
252b5132 | 350 | } |
b34976b6 | 351 | discard_last = FALSE; |
252b5132 | 352 | } |
98d87ee7 | 353 | else |
a1c16379 | 354 | lfinfo (fp, "%B:", abfd); |
5cfb2bb2 AM |
355 | |
356 | if (filename != NULL) | |
a1c16379 | 357 | fprintf (fp, "%s:", filename); |
5cfb2bb2 | 358 | |
270396f2 | 359 | done = fmt[-1] != 'H'; |
5cfb2bb2 | 360 | if (functionname != NULL && fmt[-1] == 'G') |
a1c16379 JJ |
361 | lfinfo (fp, "%T", functionname); |
362 | else if (filename != NULL && linenumber != 0) | |
18ff9b9b | 363 | fprintf (fp, "%u%s", linenumber, done ? "" : ":"); |
a1c16379 | 364 | else |
270396f2 | 365 | done = FALSE; |
252b5132 | 366 | } |
98d87ee7 | 367 | else |
270396f2 AM |
368 | { |
369 | lfinfo (fp, "%B:", abfd); | |
370 | done = FALSE; | |
371 | } | |
372 | if (!done) | |
373 | lfinfo (fp, "(%A+0x%v)", section, offset); | |
252b5132 RH |
374 | |
375 | if (discard_last) | |
376 | { | |
377 | last_bfd = NULL; | |
378 | if (last_file != NULL) | |
379 | { | |
380 | free (last_file); | |
381 | last_file = NULL; | |
382 | } | |
383 | if (last_function != NULL) | |
384 | { | |
385 | free (last_function); | |
386 | last_function = NULL; | |
387 | } | |
388 | } | |
389 | } | |
390 | break; | |
6d5e62f8 | 391 | |
5d3236ee DK |
392 | case 'p': |
393 | /* native (host) void* pointer, like printf */ | |
394 | fprintf (fp, "%p", va_arg (arg, void *)); | |
395 | break; | |
396 | ||
252b5132 RH |
397 | case 's': |
398 | /* arbitrary string, like printf */ | |
399 | fprintf (fp, "%s", va_arg (arg, char *)); | |
400 | break; | |
401 | ||
402 | case 'd': | |
403 | /* integer, like printf */ | |
404 | fprintf (fp, "%d", va_arg (arg, int)); | |
405 | break; | |
406 | ||
407 | case 'u': | |
408 | /* unsigned integer, like printf */ | |
409 | fprintf (fp, "%u", va_arg (arg, unsigned int)); | |
410 | break; | |
94b50910 AM |
411 | |
412 | case 'l': | |
413 | if (*fmt == 'd') | |
414 | { | |
415 | fprintf (fp, "%ld", va_arg (arg, long)); | |
416 | ++fmt; | |
417 | break; | |
418 | } | |
419 | else if (*fmt == 'u') | |
420 | { | |
421 | fprintf (fp, "%lu", va_arg (arg, unsigned long)); | |
422 | ++fmt; | |
423 | break; | |
424 | } | |
425 | /* Fall thru */ | |
426 | ||
427 | default: | |
428 | fprintf (fp, "%%%c", fmt[-1]); | |
429 | break; | |
252b5132 RH |
430 | } |
431 | } | |
432 | } | |
433 | ||
59ef2528 | 434 | if (is_warning && config.fatal_warnings) |
b34976b6 | 435 | config.make_executable = FALSE; |
7ce691ae | 436 | |
b34976b6 | 437 | if (fatal) |
6d5e62f8 | 438 | xexit (1); |
252b5132 RH |
439 | } |
440 | ||
6d5e62f8 | 441 | /* Format info message and print on stdout. */ |
252b5132 RH |
442 | |
443 | /* (You would think this should be called just "info", but then you | |
1579bae1 | 444 | would be hosed by LynxOS, which defines that name in its libc.) */ |
252b5132 RH |
445 | |
446 | void | |
1579bae1 | 447 | info_msg (const char *fmt, ...) |
252b5132 | 448 | { |
1579bae1 | 449 | va_list arg; |
252b5132 | 450 | |
1579bae1 | 451 | va_start (arg, fmt); |
59ef2528 | 452 | vfinfo (stdout, fmt, arg, FALSE); |
1579bae1 | 453 | va_end (arg); |
252b5132 RH |
454 | } |
455 | ||
6d5e62f8 | 456 | /* ('e' for error.) Format info message and print on stderr. */ |
252b5132 RH |
457 | |
458 | void | |
1579bae1 | 459 | einfo (const char *fmt, ...) |
252b5132 | 460 | { |
1579bae1 | 461 | va_list arg; |
252b5132 | 462 | |
e922bcab | 463 | fflush (stdout); |
1579bae1 | 464 | va_start (arg, fmt); |
59ef2528 | 465 | vfinfo (stderr, fmt, arg, TRUE); |
1579bae1 | 466 | va_end (arg); |
e922bcab | 467 | fflush (stderr); |
252b5132 RH |
468 | } |
469 | ||
6d5e62f8 | 470 | void |
1579bae1 | 471 | info_assert (const char *file, unsigned int line) |
252b5132 RH |
472 | { |
473 | einfo (_("%F%P: internal error %s %d\n"), file, line); | |
474 | } | |
475 | ||
6d5e62f8 | 476 | /* ('m' for map) Format info message and print on map. */ |
252b5132 RH |
477 | |
478 | void | |
1579bae1 | 479 | minfo (const char *fmt, ...) |
252b5132 | 480 | { |
49fa1e15 AM |
481 | if (config.map_file != NULL) |
482 | { | |
483 | va_list arg; | |
252b5132 | 484 | |
49fa1e15 | 485 | va_start (arg, fmt); |
16e4ecc0 AM |
486 | if (fmt[0] == '%' && fmt[1] == '!' && fmt[2] == 0) |
487 | { | |
488 | /* Stash info about --as-needed shared libraries. Print | |
489 | later so they don't appear intermingled with archive | |
490 | library info. */ | |
491 | struct asneeded_minfo *m = xmalloc (sizeof *m); | |
492 | ||
493 | m->next = NULL; | |
494 | m->soname = va_arg (arg, const char *); | |
495 | m->ref = va_arg (arg, bfd *); | |
496 | m->name = va_arg (arg, const char *); | |
497 | *asneeded_list_tail = m; | |
498 | asneeded_list_tail = &m->next; | |
499 | } | |
500 | else | |
501 | vfinfo (config.map_file, fmt, arg, FALSE); | |
49fa1e15 AM |
502 | va_end (arg); |
503 | } | |
252b5132 RH |
504 | } |
505 | ||
506 | void | |
1579bae1 | 507 | lfinfo (FILE *file, const char *fmt, ...) |
252b5132 | 508 | { |
1579bae1 | 509 | va_list arg; |
252b5132 | 510 | |
1579bae1 | 511 | va_start (arg, fmt); |
59ef2528 | 512 | vfinfo (file, fmt, arg, FALSE); |
1579bae1 | 513 | va_end (arg); |
252b5132 RH |
514 | } |
515 | \f | |
516 | /* Functions to print the link map. */ | |
517 | ||
6d5e62f8 | 518 | void |
1579bae1 | 519 | print_space (void) |
252b5132 RH |
520 | { |
521 | fprintf (config.map_file, " "); | |
522 | } | |
523 | ||
6d5e62f8 | 524 | void |
1579bae1 | 525 | print_nl (void) |
252b5132 RH |
526 | { |
527 | fprintf (config.map_file, "\n"); | |
528 | } | |
45455cdd ILT |
529 | |
530 | /* A more or less friendly abort message. In ld.h abort is defined to | |
531 | call this function. */ | |
532 | ||
533 | void | |
1579bae1 | 534 | ld_abort (const char *file, int line, const char *fn) |
45455cdd ILT |
535 | { |
536 | if (fn != NULL) | |
7ac01895 | 537 | einfo (_("%P: internal error: aborting at %s:%d in %s\n"), |
45455cdd ILT |
538 | file, line, fn); |
539 | else | |
7ac01895 | 540 | einfo (_("%P: internal error: aborting at %s:%d\n"), |
45455cdd ILT |
541 | file, line); |
542 | einfo (_("%P%F: please report this bug\n")); | |
543 | xexit (1); | |
544 | } |