summaryrefslogtreecommitdiffstats
path: root/contrib/binutils/gas/messages.c
blob: 005cd22d417ba7594ac11bf85b162d664657d59a (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
/* messages.c - error reporter -
   Copyright 1987, 1991, 1992, 1993, 1994, 1995, 1996, 1998, 2000, 2001, 2003
   Free Software Foundation, Inc.
   This file is part of GAS, the GNU Assembler.

   GAS is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2, or (at your option)
   any later version.

   GAS is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with GAS; see the file COPYING.  If not, write to the Free
   Software Foundation, 59 Temple Place - Suite 330, Boston, MA
   02111-1307, USA.  */

#include "as.h"

#include <stdio.h>
#ifdef HAVE_ERRNO_H
#include <errno.h>
#endif

#ifdef USE_STDARG
#include <stdarg.h>
#endif

#ifdef USE_VARARGS
#include <varargs.h>
#endif

#if !defined (USE_STDARG) && !defined (USE_VARARGS)
/* Roll our own.  */
#define va_alist REST
#define va_dcl
typedef int * va_list;
#define va_start(ARGS)	ARGS = &REST
#define va_end(ARGS)
#endif

static void identify (char *);
static void as_show_where (void);
static void as_warn_internal (char *, unsigned int, char *);
static void as_bad_internal (char *, unsigned int, char *);

/* Despite the rest of the comments in this file, (FIXME-SOON),
   here is the current scheme for error messages etc:

   as_fatal() is used when gas is quite confused and
   continuing the assembly is pointless.  In this case we
   exit immediately with error status.

   as_bad() is used to mark errors that result in what we
   presume to be a useless object file.  Say, we ignored
   something that might have been vital.  If we see any of
   these, assembly will continue to the end of the source,
   no object file will be produced, and we will terminate
   with error status.  The new option, -Z, tells us to
   produce an object file anyway but we still exit with
   error status.  The assumption here is that you don't want
   this object file but we could be wrong.

   as_warn() is used when we have an error from which we
   have a plausible error recovery.  eg, masking the top
   bits of a constant that is longer than will fit in the
   destination.  In this case we will continue to assemble
   the source, although we may have made a bad assumption,
   and we will produce an object file and return normal exit
   status (ie, no error).  The new option -X tells us to
   treat all as_warn() errors as as_bad() errors.  That is,
   no object file will be produced and we will exit with
   error status.  The idea here is that we don't kill an
   entire make because of an error that we knew how to
   correct.  On the other hand, sometimes you might want to
   stop the make at these points.

   as_tsktsk() is used when we see a minor error for which
   our error recovery action is almost certainly correct.
   In this case, we print a message and then assembly
   continues as though no error occurred.  */

static void
identify (char *file)
{
  static int identified;

  if (identified)
    return;
  identified++;

  if (!file)
    {
      unsigned int x;
      as_where (&file, &x);
    }

  if (file)
    fprintf (stderr, "%s: ", file);
  fprintf (stderr, _("Assembler messages:\n"));
}

/* The number of warnings issued.  */
static int warning_count;

int
had_warnings (void)
{
  return warning_count;
}

/* Nonzero if we've hit a 'bad error', and should not write an obj file,
   and exit with a nonzero error code.  */

static int error_count;

int
had_errors (void)
{
  return error_count;
}

/* Print the current location to stderr.  */

static void
as_show_where (void)
{
  char *file;
  unsigned int line;

  as_where (&file, &line);
  identify (file);
  if (file)
    fprintf (stderr, "%s:%u: ", file, line);
}

/* Like perror(3), but with more info.  */

void
as_perror (const char *gripe,		/* Unpunctuated error theme.  */
	   const char *filename)
{
  const char *errtxt;
  int saved_errno = errno;

  as_show_where ();
  fprintf (stderr, gripe, filename);
  errno = saved_errno;
#ifdef BFD_ASSEMBLER
  errtxt = bfd_errmsg (bfd_get_error ());
#else
  errtxt = xstrerror (errno);
#endif
  fprintf (stderr, ": %s\n", errtxt);
  errno = 0;
#ifdef BFD_ASSEMBLER
  bfd_set_error (bfd_error_no_error);
#endif
}

/* Send to stderr a string as a warning, and locate warning
   in input file(s).
   Please only use this for when we have some recovery action.
   Please explain in string (which may have '\n's) what recovery was
   done.  */

#ifdef USE_STDARG
void
as_tsktsk (const char *format, ...)
{
  va_list args;

  as_show_where ();
  va_start (args, format);
  vfprintf (stderr, format, args);
  va_end (args);
  (void) putc ('\n', stderr);
}
#else
void
as_tsktsk (format, va_alist)
     const char *format;
     va_dcl
{
  va_list args;

  as_show_where ();
  va_start (args);
  vfprintf (stderr, format, args);
  va_end (args);
  (void) putc ('\n', stderr);
}
#endif /* not NO_STDARG */

/* The common portion of as_warn and as_warn_where.  */

static void
as_warn_internal (char *file, unsigned int line, char *buffer)
{
  ++warning_count;

  if (file == NULL)
    as_where (&file, &line);

  identify (file);
  if (file)
    fprintf (stderr, "%s:%u: ", file, line);
  fprintf (stderr, _("Warning: "));
  fputs (buffer, stderr);
  (void) putc ('\n', stderr);
#ifndef NO_LISTING
  listing_warning (buffer);
#endif
}

/* Send to stderr a string as a warning, and locate warning
   in input file(s).
   Please only use this for when we have some recovery action.
   Please explain in string (which may have '\n's) what recovery was
   done.  */

#ifdef USE_STDARG
void
as_warn (const char *format, ...)
{
  va_list args;
  char buffer[2000];

  if (!flag_no_warnings)
    {
      va_start (args, format);
      vsprintf (buffer, format, args);
      va_end (args);
      as_warn_internal ((char *) NULL, 0, buffer);
    }
}
#else
void
as_warn (format, va_alist)
     const char *format;
     va_dcl
{
  va_list args;
  char buffer[2000];

  if (!flag_no_warnings)
    {
      va_start (args);
      vsprintf (buffer, format, args);
      va_end (args);
      as_warn_internal ((char *) NULL, 0, buffer);
    }
}
#endif /* not NO_STDARG */

/* Like as_bad but the file name and line number are passed in.
   Unfortunately, we have to repeat the function in order to handle
   the varargs correctly and portably.  */

#ifdef USE_STDARG
void
as_warn_where (char *file, unsigned int line, const char *format, ...)
{
  va_list args;
  char buffer[2000];

  if (!flag_no_warnings)
    {
      va_start (args, format);
      vsprintf (buffer, format, args);
      va_end (args);
      as_warn_internal (file, line, buffer);
    }
}
#else
void
as_warn_where (file, line, format, va_alist)
     char *file;
     unsigned int line;
     const char *format;
     va_dcl
{
  va_list args;
  char buffer[2000];

  if (!flag_no_warnings)
    {
      va_start (args);
      vsprintf (buffer, format, args);
      va_end (args);
      as_warn_internal (file, line, buffer);
    }
}
#endif /* not NO_STDARG */

/* The common portion of as_bad and as_bad_where.  */

static void
as_bad_internal (char *file, unsigned int line, char *buffer)
{
  ++error_count;

  if (file == NULL)
    as_where (&file, &line);

  identify (file);
  if (file)
    fprintf (stderr, "%s:%u: ", file, line);
  fprintf (stderr, _("Error: "));
  fputs (buffer, stderr);
  (void) putc ('\n', stderr);
#ifndef NO_LISTING
  listing_error (buffer);
#endif
}

/* Send to stderr a string as a warning, and locate warning in input
   file(s).  Please us when there is no recovery, but we want to
   continue processing but not produce an object file.
   Please explain in string (which may have '\n's) what recovery was
   done.  */

#ifdef USE_STDARG
void
as_bad (const char *format, ...)
{
  va_list args;
  char buffer[2000];

  va_start (args, format);
  vsprintf (buffer, format, args);
  va_end (args);

  as_bad_internal ((char *) NULL, 0, buffer);
}

#else
void
as_bad (format, va_alist)
     const char *format;
     va_dcl
{
  va_list args;
  char buffer[2000];

  va_start (args);
  vsprintf (buffer, format, args);
  va_end (args);

  as_bad_internal ((char *) NULL, 0, buffer);
}
#endif /* not NO_STDARG */

/* Like as_bad but the file name and line number are passed in.
   Unfortunately, we have to repeat the function in order to handle
   the varargs correctly and portably.  */

#ifdef USE_STDARG
void
as_bad_where (char *file, unsigned int line, const char *format, ...)
{
  va_list args;
  char buffer[2000];

  va_start (args, format);
  vsprintf (buffer, format, args);
  va_end (args);

  as_bad_internal (file, line, buffer);
}

#else
void
as_bad_where (file, line, format, va_alist)
     char *file;
     unsigned int line;
     const char *format;
     va_dcl
{
  va_list args;
  char buffer[2000];

  va_start (args);
  vsprintf (buffer, format, args);
  va_end (args);

  as_bad_internal (file, line, buffer);
}
#endif /* not NO_STDARG */

/* Send to stderr a string as a fatal message, and print location of
   error in input file(s).
   Please only use this for when we DON'T have some recovery action.
   It xexit()s with a warning status.  */

#ifdef USE_STDARG
void
as_fatal (const char *format, ...)
{
  va_list args;

  as_show_where ();
  va_start (args, format);
  fprintf (stderr, _("Fatal error: "));
  vfprintf (stderr, format, args);
  (void) putc ('\n', stderr);
  va_end (args);
  /* Delete the output file, if it exists.  This will prevent make from
     thinking that a file was created and hence does not need rebuilding.  */
  if (out_file_name != NULL)
    unlink (out_file_name);
  xexit (EXIT_FAILURE);
}
#else
void
as_fatal (format, va_alist)
     char *format;
     va_dcl
{
  va_list args;

  as_show_where ();
  va_start (args);
  fprintf (stderr, _("Fatal error: "));
  vfprintf (stderr, format, args);
  (void) putc ('\n', stderr);
  va_end (args);
  xexit (EXIT_FAILURE);
}
#endif /* not NO_STDARG */

/* Indicate assertion failure.
   Arguments: Filename, line number, optional function name.  */

void
as_assert (const char *file, int line, const char *fn)
{
  as_show_where ();
  fprintf (stderr, _("Internal error!\n"));
  if (fn)
    fprintf (stderr, _("Assertion failure in %s at %s line %d.\n"),
	     fn, file, line);
  else
    fprintf (stderr, _("Assertion failure at %s line %d.\n"), file, line);
  fprintf (stderr, _("Please report this bug.\n"));
  xexit (EXIT_FAILURE);
}

/* as_abort: Print a friendly message saying how totally hosed we are,
   and exit without producing a core file.  */

void
as_abort (const char *file, int line, const char *fn)
{
  as_show_where ();
  if (fn)
    fprintf (stderr, _("Internal error, aborting at %s line %d in %s\n"),
	     file, line, fn);
  else
    fprintf (stderr, _("Internal error, aborting at %s line %d\n"),
	     file, line);
  fprintf (stderr, _("Please report this bug.\n"));
  xexit (EXIT_FAILURE);
}

/* Support routines.  */

void
fprint_value (FILE *file, valueT val)
{
  if (sizeof (val) <= sizeof (long))
    {
      fprintf (file, "%ld", (long) val);
      return;
    }
#ifdef BFD_ASSEMBLER
  if (sizeof (val) <= sizeof (bfd_vma))
    {
      fprintf_vma (file, val);
      return;
    }
#endif
  abort ();
}

void
sprint_value (char *buf, valueT val)
{
  if (sizeof (val) <= sizeof (long))
    {
      sprintf (buf, "%ld", (long) val);
      return;
    }
#ifdef BFD_ASSEMBLER
  if (sizeof (val) <= sizeof (bfd_vma))
    {
      sprintf_vma (buf, val);
      return;
    }
#endif
  abort ();
}
OpenPOWER on IntegriCloud