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[/] [openrisc/] [trunk/] [gnu-src/] [binutils-2.18.50/] [ld/] [ldmisc.c] - Blame information for rev 231

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1 38 julius
/* ldmisc.c
2
   Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
3
   2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
4
   Free Software Foundation, Inc.
5
   Written by Steve Chamberlain of Cygnus Support.
6
 
7
   This file is part of the GNU Binutils.
8
 
9
   This program 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 3 of the License, or
12
   (at your option) any later version.
13
 
14
   This program 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 this program; if not, write to the Free Software
21
   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
22
   MA 02110-1301, USA.  */
23
 
24
#include "sysdep.h"
25
#include "bfd.h"
26
#include "bfdlink.h"
27
#include "libiberty.h"
28
#include "demangle.h"
29
#include <stdarg.h>
30
#include "ld.h"
31
#include "ldmisc.h"
32
#include "ldexp.h"
33
#include "ldlang.h"
34
#include <ldgram.h>
35
#include "ldlex.h"
36
#include "ldmain.h"
37
#include "ldfile.h"
38
#include "elf-bfd.h"
39
 
40
/*
41
 %% literal %
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
47
 %F error is fatal
48
 %G like %D, but only function name
49
 %I filename from a lang_input_statement_type
50
 %P print program name
51
 %R info about a relent
52
 %S print script file and linenumber
53
 %T symbol name
54
 %V hex bfd_vma
55
 %W hex bfd_vma with 0x with no leading zeros taking up 8 spaces
56
 %X no object output, fail return
57
 %d integer, like printf
58
 %ld long, like printf
59
 %lu unsigned long, like printf
60
 %s arbitrary string, like printf
61
 %u integer, like printf
62
 %v hex bfd_vma, no leading zeros
63
*/
64
 
65
static void
66
vfinfo (FILE *fp, const char *fmt, va_list arg, bfd_boolean is_warning)
67
{
68
  bfd_boolean fatal = FALSE;
69
 
70
  while (*fmt != '\0')
71
    {
72
      while (*fmt != '%' && *fmt != '\0')
73
        {
74
          putc (*fmt, fp);
75
          fmt++;
76
        }
77
 
78
      if (*fmt == '%')
79
        {
80
          fmt++;
81
          switch (*fmt++)
82
            {
83
            case '%':
84
              /* literal % */
85
              putc ('%', fp);
86
              break;
87
 
88
            case 'X':
89
              /* no object output, fail return */
90
              config.make_executable = FALSE;
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
118
                 8 spaces.  */
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
 
146
                if (name == NULL || *name == 0)
147
                  {
148
                    fprintf (fp, _("no symbol"));
149
                    break;
150
                  }
151
                else if (demangling)
152
                  {
153
                    char *demangled;
154
 
155
                    demangled = bfd_demangle (link_info.output_bfd, name,
156
                                              DMGL_ANSI | DMGL_PARAMS);
157
                    if (demangled != NULL)
158
                      {
159
                        fprintf (fp, "%s", demangled);
160
                        free (demangled);
161
                        break;
162
                      }
163
                  }
164
                fprintf (fp, "%s", name);
165
              }
166
              break;
167
 
168
            case 'A':
169
              /* section name from a section */
170
              {
171
                asection *sec = va_arg (arg, asection *);
172
                bfd *abfd = sec->owner;
173
                const char *group = NULL;
174
                struct coff_comdat_info *ci;
175
 
176
                fprintf (fp, "%s", sec->name);
177
                if (abfd != NULL
178
                    && bfd_get_flavour (abfd) == bfd_target_elf_flavour
179
                    && elf_next_in_group (sec) != NULL
180
                    && (sec->flags & SEC_GROUP) == 0)
181
                  group = elf_group_name (sec);
182
                else if (abfd != NULL
183
                         && bfd_get_flavour (abfd) == bfd_target_coff_flavour
184
                         && (ci = bfd_coff_get_comdat_section (sec->owner,
185
                                                               sec)) != NULL)
186
                  group = ci->name;
187
                if (group != NULL)
188
                  fprintf (fp, "[%s]", group);
189
              }
190
              break;
191
 
192
            case 'B':
193
              /* filename from a bfd */
194
              {
195
                bfd *abfd = va_arg (arg, bfd *);
196
 
197
                if (abfd == NULL)
198
                  fprintf (fp, "%s generated", program_name);
199
                else if (abfd->my_archive)
200
                  fprintf (fp, "%s(%s)", abfd->my_archive->filename,
201
                           abfd->filename);
202
                else
203
                  fprintf (fp, "%s", abfd->filename);
204
              }
205
              break;
206
 
207
            case 'F':
208
              /* Error is fatal.  */
209
              fatal = TRUE;
210
              break;
211
 
212
            case 'P':
213
              /* Print program name.  */
214
              fprintf (fp, "%s", program_name);
215
              break;
216
 
217
            case 'E':
218
              /* current bfd error or errno */
219
              fprintf (fp, "%s", bfd_errmsg (bfd_get_error ()));
220
              break;
221
 
222
            case 'I':
223
              /* filename from a lang_input_statement_type */
224
              {
225
                lang_input_statement_type *i;
226
 
227
                i = va_arg (arg, lang_input_statement_type *);
228
                if (bfd_my_archive (i->the_bfd) != NULL)
229
                  fprintf (fp, "(%s)",
230
                           bfd_get_filename (bfd_my_archive (i->the_bfd)));
231
                fprintf (fp, "%s", i->local_sym_name);
232
                if (bfd_my_archive (i->the_bfd) == NULL
233
                    && strcmp (i->local_sym_name, i->filename) != 0)
234
                  fprintf (fp, " (%s)", i->filename);
235
              }
236
              break;
237
 
238
            case 'S':
239
              /* Print script file and linenumber.  */
240
              if (parsing_defsym)
241
                fprintf (fp, "--defsym %s", lex_string);
242
              else if (ldfile_input_filename != NULL)
243
                fprintf (fp, "%s:%u", ldfile_input_filename, lineno);
244
              else
245
                fprintf (fp, _("built in linker script:%u"), lineno);
246
              break;
247
 
248
            case 'R':
249
              /* Print all that's interesting about a relent.  */
250
              {
251
                arelent *relent = va_arg (arg, arelent *);
252
 
253
                lfinfo (fp, "%s+0x%v (type %s)",
254
                        (*(relent->sym_ptr_ptr))->name,
255
                        relent->addend,
256
                        relent->howto->name);
257
              }
258
              break;
259
 
260
            case 'C':
261
            case 'D':
262
            case 'G':
263
              /* Clever filename:linenumber with function name if possible.
264
                 The arguments are a BFD, a section, and an offset.  */
265
              {
266
                static bfd *last_bfd;
267
                static char *last_file = NULL;
268
                static char *last_function = NULL;
269
                bfd *abfd;
270
                asection *section;
271
                bfd_vma offset;
272
                lang_input_statement_type *entry;
273
                asymbol **asymbols;
274
                const char *filename;
275
                const char *functionname;
276
                unsigned int linenumber;
277
                bfd_boolean discard_last;
278
 
279
                abfd = va_arg (arg, bfd *);
280
                section = va_arg (arg, asection *);
281
                offset = va_arg (arg, bfd_vma);
282
 
283
                if (abfd == NULL)
284
                  {
285
                    entry = NULL;
286
                    asymbols = NULL;
287
                  }
288
                else
289
                  {
290
                    entry = (lang_input_statement_type *) abfd->usrdata;
291
                    if (entry != (lang_input_statement_type *) NULL
292
                        && entry->asymbols != (asymbol **) NULL)
293
                      asymbols = entry->asymbols;
294
                    else
295
                      {
296
                        long symsize;
297
                        long sym_count;
298
 
299
                        symsize = bfd_get_symtab_upper_bound (abfd);
300
                        if (symsize < 0)
301
                          einfo (_("%B%F: could not read symbols\n"), abfd);
302
                        asymbols = xmalloc (symsize);
303
                        sym_count = bfd_canonicalize_symtab (abfd, asymbols);
304
                        if (sym_count < 0)
305
                          einfo (_("%B%F: could not read symbols\n"), abfd);
306
                        if (entry != (lang_input_statement_type *) NULL)
307
                          {
308
                            entry->asymbols = asymbols;
309
                            entry->symbol_count = sym_count;
310
                          }
311
                      }
312
                  }
313
 
314
                /* The GNU Coding Standard requires that error messages
315
                   be of the form:
316
 
317
                     source-file-name:lineno: message
318
 
319
                   We do not always have a line number available so if
320
                   we cannot find them we print out the section name and
321
                   offset instread.  */
322
                discard_last = TRUE;
323
                if (abfd != NULL
324
                    && bfd_find_nearest_line (abfd, section, asymbols, offset,
325
                                              &filename, &functionname,
326
                                              &linenumber))
327
                  {
328
                    if (functionname != NULL && fmt[-1] == 'C')
329
                      {
330
                        /* Detect the case where we are printing out a
331
                           message for the same function as the last
332
                           call to vinfo ("%C").  In this situation do
333
                           not print out the ABFD filename or the
334
                           function name again.  Note - we do still
335
                           print out the source filename, as this will
336
                           allow programs that parse the linker's output
337
                           (eg emacs) to correctly locate multiple
338
                           errors in the same source file.  */
339
                        if (last_bfd == NULL
340
                            || last_file == NULL
341
                            || last_function == NULL
342
                            || last_bfd != abfd
343
                            || (filename != NULL
344
                                && strcmp (last_file, filename) != 0)
345
                            || strcmp (last_function, functionname) != 0)
346
                          {
347
                            lfinfo (fp, _("%B: In function `%T':\n"),
348
                                    abfd, functionname);
349
 
350
                            last_bfd = abfd;
351
                            if (last_file != NULL)
352
                              free (last_file);
353
                            last_file = NULL;
354
                            if (filename)
355
                              last_file = xstrdup (filename);
356
                            if (last_function != NULL)
357
                              free (last_function);
358
                            last_function = xstrdup (functionname);
359
                          }
360
                        discard_last = FALSE;
361
                      }
362
                    else
363
                      lfinfo (fp, "%B:", abfd);
364
 
365
                    if (filename != NULL)
366
                      fprintf (fp, "%s:", filename);
367
 
368
                    if (functionname != NULL && fmt[-1] == 'G')
369
                      lfinfo (fp, "%T", functionname);
370
                    else if (filename != NULL && linenumber != 0)
371
                      fprintf (fp, "%u", linenumber);
372
                    else
373
                      lfinfo (fp, "(%A+0x%v)", section, offset);
374
                  }
375
                else
376
                  lfinfo (fp, "%B:(%A+0x%v)", abfd, section, offset);
377
 
378
                if (asymbols != NULL && entry == NULL)
379
                  free (asymbols);
380
 
381
                if (discard_last)
382
                  {
383
                    last_bfd = NULL;
384
                    if (last_file != NULL)
385
                      {
386
                        free (last_file);
387
                        last_file = NULL;
388
                      }
389
                    if (last_function != NULL)
390
                      {
391
                        free (last_function);
392
                        last_function = NULL;
393
                      }
394
                  }
395
              }
396
              break;
397
 
398
            case 's':
399
              /* arbitrary string, like printf */
400
              fprintf (fp, "%s", va_arg (arg, char *));
401
              break;
402
 
403
            case 'd':
404
              /* integer, like printf */
405
              fprintf (fp, "%d", va_arg (arg, int));
406
              break;
407
 
408
            case 'u':
409
              /* unsigned integer, like printf */
410
              fprintf (fp, "%u", va_arg (arg, unsigned int));
411
              break;
412
 
413
            case 'l':
414
              if (*fmt == 'd')
415
                {
416
                  fprintf (fp, "%ld", va_arg (arg, long));
417
                  ++fmt;
418
                  break;
419
                }
420
              else if (*fmt == 'u')
421
                {
422
                  fprintf (fp, "%lu", va_arg (arg, unsigned long));
423
                  ++fmt;
424
                  break;
425
                }
426
              /* Fall thru */
427
 
428
            default:
429
              fprintf (fp, "%%%c", fmt[-1]);
430
              break;
431
            }
432
        }
433
    }
434
 
435
  if (is_warning && config.fatal_warnings)
436
    config.make_executable = FALSE;
437
 
438
  if (fatal)
439
    xexit (1);
440
}
441
 
442
/* Format info message and print on stdout.  */
443
 
444
/* (You would think this should be called just "info", but then you
445
   would be hosed by LynxOS, which defines that name in its libc.)  */
446
 
447
void
448
info_msg (const char *fmt, ...)
449
{
450
  va_list arg;
451
 
452
  va_start (arg, fmt);
453
  vfinfo (stdout, fmt, arg, FALSE);
454
  va_end (arg);
455
}
456
 
457
/* ('e' for error.) Format info message and print on stderr.  */
458
 
459
void
460
einfo (const char *fmt, ...)
461
{
462
  va_list arg;
463
 
464
  va_start (arg, fmt);
465
  vfinfo (stderr, fmt, arg, TRUE);
466
  va_end (arg);
467
}
468
 
469
void
470
info_assert (const char *file, unsigned int line)
471
{
472
  einfo (_("%F%P: internal error %s %d\n"), file, line);
473
}
474
 
475
/* ('m' for map) Format info message and print on map.  */
476
 
477
void
478
minfo (const char *fmt, ...)
479
{
480
  if (config.map_file != NULL)
481
    {
482
      va_list arg;
483
 
484
      va_start (arg, fmt);
485
      vfinfo (config.map_file, fmt, arg, FALSE);
486
      va_end (arg);
487
    }
488
}
489
 
490
void
491
lfinfo (FILE *file, const char *fmt, ...)
492
{
493
  va_list arg;
494
 
495
  va_start (arg, fmt);
496
  vfinfo (file, fmt, arg, FALSE);
497
  va_end (arg);
498
}
499
 
500
/* Functions to print the link map.  */
501
 
502
void
503
print_space (void)
504
{
505
  fprintf (config.map_file, " ");
506
}
507
 
508
void
509
print_nl (void)
510
{
511
  fprintf (config.map_file, "\n");
512
}
513
 
514
/* A more or less friendly abort message.  In ld.h abort is defined to
515
   call this function.  */
516
 
517
void
518
ld_abort (const char *file, int line, const char *fn)
519
{
520
  if (fn != NULL)
521
    einfo (_("%P: internal error: aborting at %s line %d in %s\n"),
522
           file, line, fn);
523
  else
524
    einfo (_("%P: internal error: aborting at %s line %d\n"),
525
           file, line);
526
  einfo (_("%P%F: please report this bug\n"));
527
  xexit (1);
528
}

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