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