Commit | Line | Data |
---|---|---|
252b5132 | 1 | /* ldmisc.c |
6d39955e AM |
2 | Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
3 | 2000, 2002 | |
252b5132 RH |
4 | Free Software Foundation, Inc. |
5 | Written by Steve Chamberlain of Cygnus Support. | |
6 | ||
7 | This file is part of GLD, the Gnu Linker. | |
8 | ||
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. | |
13 | ||
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. | |
18 | ||
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. */ | |
23 | ||
24 | #include "bfd.h" | |
25 | #include "sysdep.h" | |
26 | #include "libiberty.h" | |
27 | #include "demangle.h" | |
28 | ||
29 | #ifdef ANSI_PROTOTYPES | |
30 | #include <stdarg.h> | |
252b5132 RH |
31 | #else |
32 | #include <varargs.h> | |
252b5132 RH |
33 | #endif |
34 | ||
35 | #include "ld.h" | |
36 | #include "ldmisc.h" | |
37 | #include "ldexp.h" | |
38 | #include "ldlang.h" | |
39 | #include "ldgram.h" | |
40 | #include "ldlex.h" | |
41 | #include "ldmain.h" | |
42 | #include "ldfile.h" | |
43 | ||
44 | static void vfinfo PARAMS ((FILE *, const char *, va_list)); | |
45 | ||
46 | /* | |
47 | %% literal % | |
48 | %F error is fatal | |
49 | %P print program name | |
50 | %S print script file and linenumber | |
51 | %E current bfd error or errno | |
52 | %I filename from a lang_input_statement_type | |
53 | %B filename from a bfd | |
54 | %T symbol name | |
55 | %X no object output, fail return | |
56 | %V hex bfd_vma | |
57 | %v hex bfd_vma, no leading zeros | |
58 | %W hex bfd_vma with 0x with no leading zeros taking up 8 spaces | |
59 | %C clever filename:linenumber with function | |
60 | %D like %C, but no function name | |
61 | %G like %D, but only function name | |
62 | %R info about a relent | |
63 | %s arbitrary string, like printf | |
64 | %d integer, like printf | |
65 | %u integer, like printf | |
66 | */ | |
67 | ||
252b5132 RH |
68 | static void |
69 | vfinfo (fp, fmt, arg) | |
70 | FILE *fp; | |
71 | const char *fmt; | |
72 | va_list arg; | |
73 | { | |
74 | boolean fatal = false; | |
75 | ||
76 | while (*fmt != '\0') | |
77 | { | |
6d5e62f8 | 78 | while (*fmt != '%' && *fmt != '\0') |
252b5132 RH |
79 | { |
80 | putc (*fmt, fp); | |
81 | fmt++; | |
82 | } | |
83 | ||
6d5e62f8 | 84 | if (*fmt == '%') |
252b5132 | 85 | { |
6d5e62f8 KH |
86 | fmt++; |
87 | switch (*fmt++) | |
252b5132 RH |
88 | { |
89 | default: | |
6d5e62f8 | 90 | fprintf (fp, "%%%c", fmt[-1]); |
252b5132 RH |
91 | break; |
92 | ||
93 | case '%': | |
94 | /* literal % */ | |
95 | putc ('%', fp); | |
96 | break; | |
97 | ||
98 | case 'X': | |
99 | /* no object output, fail return */ | |
100 | config.make_executable = false; | |
101 | break; | |
102 | ||
103 | case 'V': | |
104 | /* hex bfd_vma */ | |
105 | { | |
106 | bfd_vma value = va_arg (arg, bfd_vma); | |
107 | fprintf_vma (fp, value); | |
108 | } | |
109 | break; | |
110 | ||
111 | case 'v': | |
112 | /* hex bfd_vma, no leading zeros */ | |
113 | { | |
114 | char buf[100]; | |
115 | char *p = buf; | |
116 | bfd_vma value = va_arg (arg, bfd_vma); | |
117 | sprintf_vma (p, value); | |
118 | while (*p == '0') | |
119 | p++; | |
120 | if (!*p) | |
121 | p--; | |
122 | fputs (p, fp); | |
123 | } | |
124 | break; | |
125 | ||
126 | case 'W': | |
127 | /* hex bfd_vma with 0x with no leading zeroes taking up | |
128 | 8 spaces. */ | |
129 | { | |
130 | char buf[100]; | |
131 | bfd_vma value; | |
132 | char *p; | |
133 | int len; | |
134 | ||
135 | value = va_arg (arg, bfd_vma); | |
136 | sprintf_vma (buf, value); | |
137 | for (p = buf; *p == '0'; ++p) | |
138 | ; | |
139 | if (*p == '\0') | |
140 | --p; | |
141 | len = strlen (p); | |
142 | while (len < 8) | |
143 | { | |
144 | putc (' ', fp); | |
145 | ++len; | |
146 | } | |
147 | fprintf (fp, "0x%s", p); | |
148 | } | |
149 | break; | |
150 | ||
151 | case 'T': | |
152 | /* Symbol name. */ | |
153 | { | |
154 | const char *name = va_arg (arg, const char *); | |
155 | ||
156 | if (name == (const char *) NULL || *name == 0) | |
157 | fprintf (fp, _("no symbol")); | |
158 | else if (! demangling) | |
159 | fprintf (fp, "%s", name); | |
160 | else | |
161 | { | |
162 | char *demangled; | |
163 | ||
164 | demangled = demangle (name); | |
165 | fprintf (fp, "%s", demangled); | |
166 | free (demangled); | |
167 | } | |
168 | } | |
169 | break; | |
170 | ||
171 | case 'B': | |
172 | /* filename from a bfd */ | |
6d5e62f8 | 173 | { |
252b5132 RH |
174 | bfd *abfd = va_arg (arg, bfd *); |
175 | if (abfd->my_archive) | |
176 | fprintf (fp, "%s(%s)", abfd->my_archive->filename, | |
177 | abfd->filename); | |
178 | else | |
179 | fprintf (fp, "%s", abfd->filename); | |
180 | } | |
181 | break; | |
182 | ||
183 | case 'F': | |
6d5e62f8 | 184 | /* Error is fatal. */ |
252b5132 RH |
185 | fatal = true; |
186 | break; | |
187 | ||
188 | case 'P': | |
6d5e62f8 | 189 | /* Print program name. */ |
252b5132 RH |
190 | fprintf (fp, "%s", program_name); |
191 | break; | |
192 | ||
193 | case 'E': | |
194 | /* current bfd error or errno */ | |
305c7206 | 195 | fprintf (fp, "%s", bfd_errmsg (bfd_get_error ())); |
252b5132 RH |
196 | break; |
197 | ||
198 | case 'I': | |
199 | /* filename from a lang_input_statement_type */ | |
200 | { | |
201 | lang_input_statement_type *i; | |
202 | ||
203 | i = va_arg (arg, lang_input_statement_type *); | |
204 | if (bfd_my_archive (i->the_bfd) != NULL) | |
205 | fprintf (fp, "(%s)", | |
206 | bfd_get_filename (bfd_my_archive (i->the_bfd))); | |
207 | fprintf (fp, "%s", i->local_sym_name); | |
208 | if (bfd_my_archive (i->the_bfd) == NULL | |
209 | && strcmp (i->local_sym_name, i->filename) != 0) | |
210 | fprintf (fp, " (%s)", i->filename); | |
211 | } | |
212 | break; | |
213 | ||
214 | case 'S': | |
6d5e62f8 | 215 | /* Print script file and linenumber. */ |
252b5132 RH |
216 | if (parsing_defsym) |
217 | fprintf (fp, "--defsym %s", lex_string); | |
218 | else if (ldfile_input_filename != NULL) | |
219 | fprintf (fp, "%s:%u", ldfile_input_filename, lineno); | |
220 | else | |
221 | fprintf (fp, _("built in linker script:%u"), lineno); | |
222 | break; | |
223 | ||
224 | case 'R': | |
6d5e62f8 | 225 | /* Print all that's interesting about a relent. */ |
252b5132 RH |
226 | { |
227 | arelent *relent = va_arg (arg, arelent *); | |
6d5e62f8 | 228 | |
252b5132 RH |
229 | lfinfo (fp, "%s+0x%v (type %s)", |
230 | (*(relent->sym_ptr_ptr))->name, | |
231 | relent->addend, | |
232 | relent->howto->name); | |
233 | } | |
234 | break; | |
6d5e62f8 | 235 | |
252b5132 RH |
236 | case 'C': |
237 | case 'D': | |
238 | case 'G': | |
239 | /* Clever filename:linenumber with function name if possible, | |
240 | or section name as a last resort. The arguments are a BFD, | |
241 | a section, and an offset. */ | |
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; | |
254 | boolean discard_last; | |
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 | ||
283 | discard_last = true; | |
284 | if (bfd_find_nearest_line (abfd, section, asymbols, offset, | |
285 | &filename, &functionname, | |
286 | &linenumber)) | |
287 | { | |
288 | if (functionname != NULL && fmt[-1] == 'G') | |
289 | { | |
290 | lfinfo (fp, "%B:", abfd); | |
291 | if (filename != NULL | |
292 | && strcmp (filename, bfd_get_filename (abfd)) != 0) | |
293 | fprintf (fp, "%s:", filename); | |
294 | lfinfo (fp, "%T", functionname); | |
295 | } | |
296 | else if (functionname != NULL && fmt[-1] == 'C') | |
297 | { | |
298 | if (filename == (char *) NULL) | |
299 | filename = abfd->filename; | |
300 | ||
301 | if (last_bfd == NULL | |
302 | || last_file == NULL | |
303 | || last_function == NULL | |
304 | || last_bfd != abfd | |
305 | || strcmp (last_file, filename) != 0 | |
306 | || strcmp (last_function, functionname) != 0) | |
307 | { | |
308 | /* We use abfd->filename in this initial line, | |
309 | in case filename is a .h file or something | |
310 | similarly unhelpful. */ | |
311 | lfinfo (fp, _("%B: In function `%T':\n"), | |
312 | abfd, functionname); | |
313 | ||
314 | last_bfd = abfd; | |
315 | if (last_file != NULL) | |
316 | free (last_file); | |
d1b2b2dc | 317 | last_file = xstrdup (filename); |
252b5132 RH |
318 | if (last_function != NULL) |
319 | free (last_function); | |
d1b2b2dc | 320 | last_function = xstrdup (functionname); |
252b5132 RH |
321 | } |
322 | discard_last = false; | |
323 | if (linenumber != 0) | |
324 | fprintf (fp, "%s:%u", filename, linenumber); | |
325 | else | |
326 | lfinfo (fp, "%s(%s+0x%v)", filename, section->name, | |
327 | offset); | |
328 | } | |
329 | else if (filename == NULL | |
330 | || strcmp (filename, abfd->filename) == 0) | |
331 | { | |
332 | lfinfo (fp, "%B(%s+0x%v)", abfd, section->name, | |
333 | offset); | |
334 | if (linenumber != 0) | |
335 | lfinfo (fp, ":%u", linenumber); | |
336 | } | |
6d5e62f8 | 337 | else if (linenumber != 0) |
252b5132 RH |
338 | lfinfo (fp, "%B:%s:%u", abfd, filename, linenumber); |
339 | else | |
340 | lfinfo (fp, "%B(%s+0x%v):%s", abfd, section->name, | |
341 | offset, filename); | |
342 | } | |
343 | else | |
344 | lfinfo (fp, "%B(%s+0x%v)", abfd, section->name, offset); | |
345 | ||
346 | if (discard_last) | |
347 | { | |
348 | last_bfd = NULL; | |
349 | if (last_file != NULL) | |
350 | { | |
351 | free (last_file); | |
352 | last_file = NULL; | |
353 | } | |
354 | if (last_function != NULL) | |
355 | { | |
356 | free (last_function); | |
357 | last_function = NULL; | |
358 | } | |
359 | } | |
360 | } | |
361 | break; | |
6d5e62f8 | 362 | |
252b5132 RH |
363 | case 's': |
364 | /* arbitrary string, like printf */ | |
365 | fprintf (fp, "%s", va_arg (arg, char *)); | |
366 | break; | |
367 | ||
368 | case 'd': | |
369 | /* integer, like printf */ | |
370 | fprintf (fp, "%d", va_arg (arg, int)); | |
371 | break; | |
372 | ||
373 | case 'u': | |
374 | /* unsigned integer, like printf */ | |
375 | fprintf (fp, "%u", va_arg (arg, unsigned int)); | |
376 | break; | |
377 | } | |
378 | } | |
379 | } | |
380 | ||
7ce691ae C |
381 | if (config.fatal_warnings) |
382 | config.make_executable = false; | |
383 | ||
6d5e62f8 KH |
384 | if (fatal == true) |
385 | xexit (1); | |
252b5132 RH |
386 | } |
387 | ||
b7b482a3 AM |
388 | /* Wrapper around cplus_demangle. Strips leading underscores and |
389 | other such chars that would otherwise confuse the demangler. */ | |
390 | ||
391 | char * | |
392 | demangle (name) | |
393 | const char *name; | |
394 | { | |
395 | char *res; | |
396 | const char *p; | |
397 | ||
398 | if (output_bfd != NULL | |
399 | && bfd_get_symbol_leading_char (output_bfd) == name[0]) | |
400 | ++name; | |
401 | ||
402 | /* This is a hack for better error reporting on XCOFF, PowerPC64-ELF | |
403 | or the MS PE format. These formats have a number of leading '.'s | |
404 | on at least some symbols, so we remove all dots to avoid | |
405 | confusing the demangler. */ | |
406 | p = name; | |
407 | while (*p == '.') | |
408 | ++p; | |
409 | ||
410 | res = cplus_demangle (p, DMGL_ANSI | DMGL_PARAMS); | |
411 | if (res) | |
412 | { | |
413 | size_t dots = p - name; | |
414 | ||
415 | /* Now put back any stripped dots. */ | |
416 | if (dots != 0) | |
417 | { | |
418 | size_t len = strlen (res) + 1; | |
419 | char *add_dots = xmalloc (len + dots); | |
420 | ||
421 | memcpy (add_dots, name, dots); | |
422 | memcpy (add_dots + dots, res, len); | |
423 | free (res); | |
424 | res = add_dots; | |
425 | } | |
426 | return res; | |
427 | } | |
428 | return xstrdup (name); | |
429 | } | |
430 | ||
6d5e62f8 | 431 | /* Format info message and print on stdout. */ |
252b5132 RH |
432 | |
433 | /* (You would think this should be called just "info", but then you | |
434 | would hosed by LynxOS, which defines that name in its libc.) */ | |
435 | ||
436 | void | |
d5e0ebeb | 437 | info_msg VPARAMS ((const char *fmt, ...)) |
252b5132 | 438 | { |
d5e0ebeb AM |
439 | VA_OPEN (arg, fmt); |
440 | VA_FIXEDARG (arg, const char *, fmt); | |
252b5132 RH |
441 | |
442 | vfinfo (stdout, fmt, arg); | |
d5e0ebeb | 443 | VA_CLOSE (arg); |
252b5132 RH |
444 | } |
445 | ||
6d5e62f8 | 446 | /* ('e' for error.) Format info message and print on stderr. */ |
252b5132 RH |
447 | |
448 | void | |
d5e0ebeb | 449 | einfo VPARAMS ((const char *fmt, ...)) |
252b5132 | 450 | { |
d5e0ebeb AM |
451 | VA_OPEN (arg, fmt); |
452 | VA_FIXEDARG (arg, const char *, fmt); | |
252b5132 RH |
453 | |
454 | vfinfo (stderr, fmt, arg); | |
d5e0ebeb | 455 | VA_CLOSE (arg); |
252b5132 RH |
456 | } |
457 | ||
6d5e62f8 | 458 | void |
252b5132 RH |
459 | info_assert (file, line) |
460 | const char *file; | |
461 | unsigned int line; | |
462 | { | |
463 | einfo (_("%F%P: internal error %s %d\n"), file, line); | |
464 | } | |
465 | ||
6d5e62f8 | 466 | /* ('m' for map) Format info message and print on map. */ |
252b5132 RH |
467 | |
468 | void | |
d5e0ebeb | 469 | minfo VPARAMS ((const char *fmt, ...)) |
252b5132 | 470 | { |
d5e0ebeb AM |
471 | VA_OPEN (arg, fmt); |
472 | VA_FIXEDARG (arg, const char *, fmt); | |
252b5132 RH |
473 | |
474 | vfinfo (config.map_file, fmt, arg); | |
d5e0ebeb | 475 | VA_CLOSE (arg); |
252b5132 RH |
476 | } |
477 | ||
478 | void | |
d5e0ebeb | 479 | lfinfo VPARAMS ((FILE *file, const char *fmt, ...)) |
252b5132 | 480 | { |
d5e0ebeb AM |
481 | VA_OPEN (arg, fmt); |
482 | VA_FIXEDARG (arg, FILE *, file); | |
483 | VA_FIXEDARG (arg, const char *, fmt); | |
252b5132 RH |
484 | |
485 | vfinfo (file, fmt, arg); | |
d5e0ebeb | 486 | VA_CLOSE (arg); |
252b5132 RH |
487 | } |
488 | \f | |
489 | /* Functions to print the link map. */ | |
490 | ||
6d5e62f8 | 491 | void |
252b5132 RH |
492 | print_space () |
493 | { | |
494 | fprintf (config.map_file, " "); | |
495 | } | |
496 | ||
6d5e62f8 | 497 | void |
252b5132 RH |
498 | print_nl () |
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 | |
507 | ld_abort (file, line, fn) | |
508 | const char *file; | |
509 | int line; | |
510 | const char *fn; | |
511 | { | |
512 | if (fn != NULL) | |
513 | einfo (_("%P: internal error: aborting at %s line %d in %s\n"), | |
514 | file, line, fn); | |
515 | else | |
516 | einfo (_("%P: internal error: aborting at %s line %d\n"), | |
517 | file, line); | |
518 | einfo (_("%P%F: please report this bug\n")); | |
519 | xexit (1); | |
520 | } |