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252b5132 RH |
1 | /* ldmisc.c |
2 | Copyright (C) 1991, 92, 93, 94, 95, 96, 97, 98, 1999 | |
3 | Free Software Foundation, Inc. | |
4 | Written by Steve Chamberlain of Cygnus Support. | |
5 | ||
6 | This file is part of GLD, the Gnu Linker. | |
7 | ||
8 | GLD is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2, or (at your option) | |
11 | any later version. | |
12 | ||
13 | GLD is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with GLD; see the file COPYING. If not, write to the Free | |
20 | Software Foundation, 59 Temple Place - Suite 330, Boston, MA | |
21 | 02111-1307, USA. */ | |
22 | ||
23 | #include "bfd.h" | |
24 | #include "sysdep.h" | |
25 | #include "libiberty.h" | |
26 | #include "demangle.h" | |
27 | ||
28 | #ifdef ANSI_PROTOTYPES | |
29 | #include <stdarg.h> | |
30 | #define USE_STDARG 1 | |
31 | #else | |
32 | #include <varargs.h> | |
33 | #define USE_STDARG 0 | |
34 | #endif | |
35 | ||
36 | #include "ld.h" | |
37 | #include "ldmisc.h" | |
38 | #include "ldexp.h" | |
39 | #include "ldlang.h" | |
40 | #include "ldgram.h" | |
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 | ||
69 | char * | |
70 | demangle (string) | |
71 | const char *string; | |
72 | { | |
73 | char *res; | |
74 | ||
75 | if (output_bfd != NULL | |
76 | && bfd_get_symbol_leading_char (output_bfd) == string[0]) | |
77 | ++string; | |
78 | ||
79 | /* This is a hack for better error reporting on XCOFF, or the MS PE */ | |
80 | /* format. Xcoff has a single '.', while the NT PE for PPC has '..'. */ | |
81 | /* So we remove all of them. */ | |
82 | while(string[0] == '.') | |
83 | ++string; | |
84 | ||
85 | res = cplus_demangle (string, DMGL_ANSI | DMGL_PARAMS); | |
86 | return res ? res : xstrdup (string); | |
87 | } | |
88 | ||
89 | static void | |
90 | vfinfo (fp, fmt, arg) | |
91 | FILE *fp; | |
92 | const char *fmt; | |
93 | va_list arg; | |
94 | { | |
95 | boolean fatal = false; | |
96 | ||
97 | while (*fmt != '\0') | |
98 | { | |
99 | while (*fmt != '%' && *fmt != '\0') | |
100 | { | |
101 | putc (*fmt, fp); | |
102 | fmt++; | |
103 | } | |
104 | ||
105 | if (*fmt == '%') | |
106 | { | |
107 | fmt ++; | |
108 | switch (*fmt++) | |
109 | { | |
110 | default: | |
111 | fprintf (fp,"%%%c", fmt[-1]); | |
112 | break; | |
113 | ||
114 | case '%': | |
115 | /* literal % */ | |
116 | putc ('%', fp); | |
117 | break; | |
118 | ||
119 | case 'X': | |
120 | /* no object output, fail return */ | |
121 | config.make_executable = false; | |
122 | break; | |
123 | ||
124 | case 'V': | |
125 | /* hex bfd_vma */ | |
126 | { | |
127 | bfd_vma value = va_arg (arg, bfd_vma); | |
128 | fprintf_vma (fp, value); | |
129 | } | |
130 | break; | |
131 | ||
132 | case 'v': | |
133 | /* hex bfd_vma, no leading zeros */ | |
134 | { | |
135 | char buf[100]; | |
136 | char *p = buf; | |
137 | bfd_vma value = va_arg (arg, bfd_vma); | |
138 | sprintf_vma (p, value); | |
139 | while (*p == '0') | |
140 | p++; | |
141 | if (!*p) | |
142 | p--; | |
143 | fputs (p, fp); | |
144 | } | |
145 | break; | |
146 | ||
147 | case 'W': | |
148 | /* hex bfd_vma with 0x with no leading zeroes taking up | |
149 | 8 spaces. */ | |
150 | { | |
151 | char buf[100]; | |
152 | bfd_vma value; | |
153 | char *p; | |
154 | int len; | |
155 | ||
156 | value = va_arg (arg, bfd_vma); | |
157 | sprintf_vma (buf, value); | |
158 | for (p = buf; *p == '0'; ++p) | |
159 | ; | |
160 | if (*p == '\0') | |
161 | --p; | |
162 | len = strlen (p); | |
163 | while (len < 8) | |
164 | { | |
165 | putc (' ', fp); | |
166 | ++len; | |
167 | } | |
168 | fprintf (fp, "0x%s", p); | |
169 | } | |
170 | break; | |
171 | ||
172 | case 'T': | |
173 | /* Symbol name. */ | |
174 | { | |
175 | const char *name = va_arg (arg, const char *); | |
176 | ||
177 | if (name == (const char *) NULL || *name == 0) | |
178 | fprintf (fp, _("no symbol")); | |
179 | else if (! demangling) | |
180 | fprintf (fp, "%s", name); | |
181 | else | |
182 | { | |
183 | char *demangled; | |
184 | ||
185 | demangled = demangle (name); | |
186 | fprintf (fp, "%s", demangled); | |
187 | free (demangled); | |
188 | } | |
189 | } | |
190 | break; | |
191 | ||
192 | case 'B': | |
193 | /* filename from a bfd */ | |
194 | { | |
195 | bfd *abfd = va_arg (arg, bfd *); | |
196 | if (abfd->my_archive) | |
197 | fprintf (fp, "%s(%s)", abfd->my_archive->filename, | |
198 | abfd->filename); | |
199 | else | |
200 | fprintf (fp, "%s", abfd->filename); | |
201 | } | |
202 | break; | |
203 | ||
204 | case 'F': | |
205 | /* error is fatal */ | |
206 | fatal = true; | |
207 | break; | |
208 | ||
209 | case 'P': | |
210 | /* print program name */ | |
211 | fprintf (fp, "%s", program_name); | |
212 | break; | |
213 | ||
214 | case 'E': | |
215 | /* current bfd error or errno */ | |
216 | fprintf (fp, bfd_errmsg (bfd_get_error ())); | |
217 | break; | |
218 | ||
219 | case 'I': | |
220 | /* filename from a lang_input_statement_type */ | |
221 | { | |
222 | lang_input_statement_type *i; | |
223 | ||
224 | i = va_arg (arg, lang_input_statement_type *); | |
225 | if (bfd_my_archive (i->the_bfd) != NULL) | |
226 | fprintf (fp, "(%s)", | |
227 | bfd_get_filename (bfd_my_archive (i->the_bfd))); | |
228 | fprintf (fp, "%s", i->local_sym_name); | |
229 | if (bfd_my_archive (i->the_bfd) == NULL | |
230 | && strcmp (i->local_sym_name, i->filename) != 0) | |
231 | fprintf (fp, " (%s)", i->filename); | |
232 | } | |
233 | break; | |
234 | ||
235 | case 'S': | |
236 | /* print script file and linenumber */ | |
237 | if (parsing_defsym) | |
238 | fprintf (fp, "--defsym %s", lex_string); | |
239 | else if (ldfile_input_filename != NULL) | |
240 | fprintf (fp, "%s:%u", ldfile_input_filename, lineno); | |
241 | else | |
242 | fprintf (fp, _("built in linker script:%u"), lineno); | |
243 | break; | |
244 | ||
245 | case 'R': | |
246 | /* Print all that's interesting about a relent */ | |
247 | { | |
248 | arelent *relent = va_arg (arg, arelent *); | |
249 | ||
250 | lfinfo (fp, "%s+0x%v (type %s)", | |
251 | (*(relent->sym_ptr_ptr))->name, | |
252 | relent->addend, | |
253 | relent->howto->name); | |
254 | } | |
255 | break; | |
256 | ||
257 | case 'C': | |
258 | case 'D': | |
259 | case 'G': | |
260 | /* Clever filename:linenumber with function name if possible, | |
261 | or section name as a last resort. The arguments are a BFD, | |
262 | a section, and an offset. */ | |
263 | { | |
264 | static bfd *last_bfd; | |
265 | static char *last_file = NULL; | |
266 | static char *last_function = NULL; | |
267 | bfd *abfd; | |
268 | asection *section; | |
269 | bfd_vma offset; | |
270 | lang_input_statement_type *entry; | |
271 | asymbol **asymbols; | |
272 | const char *filename; | |
273 | const char *functionname; | |
274 | unsigned int linenumber; | |
275 | boolean discard_last; | |
276 | ||
277 | abfd = va_arg (arg, bfd *); | |
278 | section = va_arg (arg, asection *); | |
279 | offset = va_arg (arg, bfd_vma); | |
280 | ||
281 | entry = (lang_input_statement_type *) abfd->usrdata; | |
282 | if (entry != (lang_input_statement_type *) NULL | |
283 | && entry->asymbols != (asymbol **) NULL) | |
284 | asymbols = entry->asymbols; | |
285 | else | |
286 | { | |
287 | long symsize; | |
288 | long symbol_count; | |
289 | ||
290 | symsize = bfd_get_symtab_upper_bound (abfd); | |
291 | if (symsize < 0) | |
292 | einfo (_("%B%F: could not read symbols\n"), abfd); | |
293 | asymbols = (asymbol **) xmalloc (symsize); | |
294 | symbol_count = bfd_canonicalize_symtab (abfd, asymbols); | |
295 | if (symbol_count < 0) | |
296 | einfo (_("%B%F: could not read symbols\n"), abfd); | |
297 | if (entry != (lang_input_statement_type *) NULL) | |
298 | { | |
299 | entry->asymbols = asymbols; | |
300 | entry->symbol_count = symbol_count; | |
301 | } | |
302 | } | |
303 | ||
304 | discard_last = true; | |
305 | if (bfd_find_nearest_line (abfd, section, asymbols, offset, | |
306 | &filename, &functionname, | |
307 | &linenumber)) | |
308 | { | |
309 | if (functionname != NULL && fmt[-1] == 'G') | |
310 | { | |
311 | lfinfo (fp, "%B:", abfd); | |
312 | if (filename != NULL | |
313 | && strcmp (filename, bfd_get_filename (abfd)) != 0) | |
314 | fprintf (fp, "%s:", filename); | |
315 | lfinfo (fp, "%T", functionname); | |
316 | } | |
317 | else if (functionname != NULL && fmt[-1] == 'C') | |
318 | { | |
319 | if (filename == (char *) NULL) | |
320 | filename = abfd->filename; | |
321 | ||
322 | if (last_bfd == NULL | |
323 | || last_file == NULL | |
324 | || last_function == NULL | |
325 | || last_bfd != abfd | |
326 | || strcmp (last_file, filename) != 0 | |
327 | || strcmp (last_function, functionname) != 0) | |
328 | { | |
329 | /* We use abfd->filename in this initial line, | |
330 | in case filename is a .h file or something | |
331 | similarly unhelpful. */ | |
332 | lfinfo (fp, _("%B: In function `%T':\n"), | |
333 | abfd, functionname); | |
334 | ||
335 | last_bfd = abfd; | |
336 | if (last_file != NULL) | |
337 | free (last_file); | |
338 | last_file = buystring (filename); | |
339 | if (last_function != NULL) | |
340 | free (last_function); | |
341 | last_function = buystring (functionname); | |
342 | } | |
343 | discard_last = false; | |
344 | if (linenumber != 0) | |
345 | fprintf (fp, "%s:%u", filename, linenumber); | |
346 | else | |
347 | lfinfo (fp, "%s(%s+0x%v)", filename, section->name, | |
348 | offset); | |
349 | } | |
350 | else if (filename == NULL | |
351 | || strcmp (filename, abfd->filename) == 0) | |
352 | { | |
353 | lfinfo (fp, "%B(%s+0x%v)", abfd, section->name, | |
354 | offset); | |
355 | if (linenumber != 0) | |
356 | lfinfo (fp, ":%u", linenumber); | |
357 | } | |
358 | else if (linenumber != 0) | |
359 | lfinfo (fp, "%B:%s:%u", abfd, filename, linenumber); | |
360 | else | |
361 | lfinfo (fp, "%B(%s+0x%v):%s", abfd, section->name, | |
362 | offset, filename); | |
363 | } | |
364 | else | |
365 | lfinfo (fp, "%B(%s+0x%v)", abfd, section->name, offset); | |
366 | ||
367 | if (discard_last) | |
368 | { | |
369 | last_bfd = NULL; | |
370 | if (last_file != NULL) | |
371 | { | |
372 | free (last_file); | |
373 | last_file = NULL; | |
374 | } | |
375 | if (last_function != NULL) | |
376 | { | |
377 | free (last_function); | |
378 | last_function = NULL; | |
379 | } | |
380 | } | |
381 | } | |
382 | break; | |
383 | ||
384 | case 's': | |
385 | /* arbitrary string, like printf */ | |
386 | fprintf (fp, "%s", va_arg (arg, char *)); | |
387 | break; | |
388 | ||
389 | case 'd': | |
390 | /* integer, like printf */ | |
391 | fprintf (fp, "%d", va_arg (arg, int)); | |
392 | break; | |
393 | ||
394 | case 'u': | |
395 | /* unsigned integer, like printf */ | |
396 | fprintf (fp, "%u", va_arg (arg, unsigned int)); | |
397 | break; | |
398 | } | |
399 | } | |
400 | } | |
401 | ||
402 | if (fatal == true) | |
403 | xexit(1); | |
404 | } | |
405 | ||
406 | /* Format info message and print on stdout. */ | |
407 | ||
408 | /* (You would think this should be called just "info", but then you | |
409 | would hosed by LynxOS, which defines that name in its libc.) */ | |
410 | ||
411 | void | |
412 | #if USE_STDARG | |
413 | info_msg (const char *fmt, ...) | |
414 | #else | |
415 | info_msg (va_alist) | |
416 | va_dcl | |
417 | #endif | |
418 | { | |
419 | va_list arg; | |
420 | ||
421 | #if ! USE_STDARG | |
422 | const char *fmt; | |
423 | ||
424 | va_start (arg); | |
425 | fmt = va_arg (arg, const char *); | |
426 | #else | |
427 | va_start (arg, fmt); | |
428 | #endif | |
429 | ||
430 | vfinfo (stdout, fmt, arg); | |
431 | va_end (arg); | |
432 | } | |
433 | ||
434 | /* ('e' for error.) Format info message and print on stderr. */ | |
435 | ||
436 | void | |
437 | #if USE_STDARG | |
438 | einfo (const char *fmt, ...) | |
439 | #else | |
440 | einfo (va_alist) | |
441 | va_dcl | |
442 | #endif | |
443 | { | |
444 | va_list arg; | |
445 | ||
446 | #if ! USE_STDARG | |
447 | const char *fmt; | |
448 | ||
449 | va_start (arg); | |
450 | fmt = va_arg (arg, const char *); | |
451 | #else | |
452 | va_start (arg, fmt); | |
453 | #endif | |
454 | ||
455 | vfinfo (stderr, fmt, arg); | |
456 | va_end (arg); | |
457 | } | |
458 | ||
459 | void | |
460 | info_assert (file, line) | |
461 | const char *file; | |
462 | unsigned int line; | |
463 | { | |
464 | einfo (_("%F%P: internal error %s %d\n"), file, line); | |
465 | } | |
466 | ||
467 | char * | |
468 | buystring (x) | |
469 | CONST char *CONST x; | |
470 | { | |
471 | size_t l = strlen(x)+1; | |
472 | char *r = xmalloc(l); | |
473 | memcpy(r, x,l); | |
474 | return r; | |
475 | } | |
476 | ||
477 | /* ('m' for map) Format info message and print on map. */ | |
478 | ||
479 | void | |
480 | #if USE_STDARG | |
481 | minfo (const char *fmt, ...) | |
482 | #else | |
483 | minfo (va_alist) | |
484 | va_dcl | |
485 | #endif | |
486 | { | |
487 | va_list arg; | |
488 | ||
489 | #if ! USE_STDARG | |
490 | const char *fmt; | |
491 | va_start (arg); | |
492 | fmt = va_arg (arg, const char *); | |
493 | #else | |
494 | va_start (arg, fmt); | |
495 | #endif | |
496 | ||
497 | vfinfo (config.map_file, fmt, arg); | |
498 | va_end (arg); | |
499 | } | |
500 | ||
501 | void | |
502 | #if USE_STDARG | |
503 | lfinfo (FILE *file, const char *fmt, ...) | |
504 | #else | |
505 | lfinfo (va_alist) | |
506 | va_dcl | |
507 | #endif | |
508 | { | |
509 | va_list arg; | |
510 | ||
511 | #if ! USE_STDARG | |
512 | FILE *file; | |
513 | const char *fmt; | |
514 | ||
515 | va_start (arg); | |
516 | file = va_arg (arg, FILE *); | |
517 | fmt = va_arg (arg, const char *); | |
518 | #else | |
519 | va_start (arg, fmt); | |
520 | #endif | |
521 | ||
522 | vfinfo (file, fmt, arg); | |
523 | va_end (arg); | |
524 | } | |
525 | \f | |
526 | /* Functions to print the link map. */ | |
527 | ||
528 | void | |
529 | print_space () | |
530 | { | |
531 | fprintf (config.map_file, " "); | |
532 | } | |
533 | ||
534 | void | |
535 | print_nl () | |
536 | { | |
537 | fprintf (config.map_file, "\n"); | |
538 | } |