Commit | Line | Data |
---|---|---|
252b5132 RH |
1 | /* messages.c - error reporter - |
2 | Copyright (C) 1987, 91, 92, 93, 94, 95, 96, 97, 1998 | |
3 | Free Software Foundation, Inc. | |
4 | This file is part of GAS, the GNU Assembler. | |
5 | ||
6 | GAS is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 2, or (at your option) | |
9 | any later version. | |
10 | ||
11 | GAS is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GAS; see the file COPYING. If not, write to the Free | |
18 | Software Foundation, 59 Temple Place - Suite 330, Boston, MA | |
c488923f | 19 | 02111-1307, USA. */ |
252b5132 RH |
20 | |
21 | #include "as.h" | |
22 | ||
23 | #include <stdio.h> | |
24 | #ifdef HAVE_ERRNO_H | |
25 | #include <errno.h> | |
26 | #endif | |
27 | ||
28 | #ifdef USE_STDARG | |
29 | #include <stdarg.h> | |
30 | #endif | |
31 | ||
32 | #ifdef USE_VARARGS | |
33 | #include <varargs.h> | |
34 | #endif | |
35 | ||
36 | #if !defined (USE_STDARG) && !defined (USE_VARARGS) | |
37 | /* Roll our own. */ | |
38 | #define va_alist REST | |
39 | #define va_dcl | |
40 | typedef int * va_list; | |
41 | #define va_start(ARGS) ARGS = &REST | |
42 | #define va_end(ARGS) | |
43 | #endif | |
44 | ||
45 | static void identify PARAMS ((char *)); | |
46 | static void as_show_where PARAMS ((void)); | |
47 | static void as_warn_internal PARAMS ((char *, unsigned int, char *)); | |
48 | static void as_bad_internal PARAMS ((char *, unsigned int, char *)); | |
49 | ||
50 | /* | |
51 | * Despite the rest of the comments in this file, (FIXME-SOON), | |
52 | * here is the current scheme for error messages etc: | |
53 | * | |
54 | * as_fatal() is used when gas is quite confused and | |
55 | * continuing the assembly is pointless. In this case we | |
56 | * exit immediately with error status. | |
57 | * | |
58 | * as_bad() is used to mark errors that result in what we | |
59 | * presume to be a useless object file. Say, we ignored | |
60 | * something that might have been vital. If we see any of | |
61 | * these, assembly will continue to the end of the source, | |
62 | * no object file will be produced, and we will terminate | |
63 | * with error status. The new option, -Z, tells us to | |
64 | * produce an object file anyway but we still exit with | |
65 | * error status. The assumption here is that you don't want | |
66 | * this object file but we could be wrong. | |
67 | * | |
68 | * as_warn() is used when we have an error from which we | |
69 | * have a plausible error recovery. eg, masking the top | |
70 | * bits of a constant that is longer than will fit in the | |
71 | * destination. In this case we will continue to assemble | |
72 | * the source, although we may have made a bad assumption, | |
73 | * and we will produce an object file and return normal exit | |
74 | * status (ie, no error). The new option -X tells us to | |
75 | * treat all as_warn() errors as as_bad() errors. That is, | |
76 | * no object file will be produced and we will exit with | |
77 | * error status. The idea here is that we don't kill an | |
78 | * entire make because of an error that we knew how to | |
79 | * correct. On the other hand, sometimes you might want to | |
80 | * stop the make at these points. | |
81 | * | |
82 | * as_tsktsk() is used when we see a minor error for which | |
83 | * our error recovery action is almost certainly correct. | |
84 | * In this case, we print a message and then assembly | |
85 | * continues as though no error occurred. | |
86 | */ | |
87 | ||
88 | static void | |
89 | identify (file) | |
90 | char *file; | |
91 | { | |
92 | static int identified; | |
93 | if (identified) | |
94 | return; | |
95 | identified++; | |
96 | ||
97 | if (!file) | |
98 | { | |
99 | unsigned int x; | |
100 | as_where (&file, &x); | |
101 | } | |
102 | ||
103 | if (file) | |
104 | fprintf (stderr, "%s: ", file); | |
105 | fprintf (stderr, _("Assembler messages:\n")); | |
106 | } | |
107 | ||
108 | static int warning_count; /* Count of number of warnings issued */ | |
109 | ||
c488923f | 110 | int |
252b5132 RH |
111 | had_warnings () |
112 | { | |
113 | return (warning_count); | |
114 | } | |
115 | ||
116 | /* Nonzero if we've hit a 'bad error', and should not write an obj file, | |
117 | and exit with a nonzero error code */ | |
118 | ||
119 | static int error_count; | |
120 | ||
c488923f | 121 | int |
252b5132 RH |
122 | had_errors () |
123 | { | |
124 | return (error_count); | |
125 | } | |
126 | ||
252b5132 RH |
127 | /* Print the current location to stderr. */ |
128 | ||
129 | static void | |
130 | as_show_where () | |
131 | { | |
132 | char *file; | |
133 | unsigned int line; | |
134 | ||
135 | as_where (&file, &line); | |
136 | identify (file); | |
137 | if (file) | |
138 | fprintf (stderr, "%s:%u: ", file, line); | |
139 | } | |
140 | ||
141 | /* | |
142 | * a s _ p e r r o r | |
143 | * | |
144 | * Like perror(3), but with more info. | |
145 | */ | |
146 | ||
c488923f | 147 | void |
252b5132 | 148 | as_perror (gripe, filename) |
c488923f | 149 | const char *gripe; /* Unpunctuated error theme. */ |
252b5132 RH |
150 | const char *filename; |
151 | { | |
152 | const char *errtxt; | |
153 | ||
154 | as_show_where (); | |
155 | fprintf (stderr, gripe, filename); | |
156 | #ifdef BFD_ASSEMBLER | |
157 | errtxt = bfd_errmsg (bfd_get_error ()); | |
158 | #else | |
159 | errtxt = xstrerror (errno); | |
160 | #endif | |
161 | fprintf (stderr, ": %s\n", errtxt); | |
162 | errno = 0; | |
163 | #ifdef BFD_ASSEMBLER | |
164 | bfd_set_error (bfd_error_no_error); | |
165 | #endif | |
166 | } | |
167 | ||
168 | /* | |
169 | * a s _ t s k t s k () | |
170 | * | |
171 | * Send to stderr a string as a warning, and locate warning | |
172 | * in input file(s). | |
173 | * Please only use this for when we have some recovery action. | |
174 | * Please explain in string (which may have '\n's) what recovery was done. | |
175 | */ | |
176 | ||
177 | #ifdef USE_STDARG | |
c488923f | 178 | void |
252b5132 RH |
179 | as_tsktsk (const char *format,...) |
180 | { | |
181 | va_list args; | |
182 | ||
183 | as_show_where (); | |
184 | va_start (args, format); | |
185 | vfprintf (stderr, format, args); | |
186 | va_end (args); | |
187 | (void) putc ('\n', stderr); | |
188 | } /* as_tsktsk() */ | |
189 | #else | |
c488923f | 190 | void |
252b5132 RH |
191 | as_tsktsk (format, va_alist) |
192 | const char *format; | |
193 | va_dcl | |
194 | { | |
195 | va_list args; | |
196 | ||
197 | as_show_where (); | |
198 | va_start (args); | |
199 | vfprintf (stderr, format, args); | |
200 | va_end (args); | |
201 | (void) putc ('\n', stderr); | |
202 | } /* as_tsktsk() */ | |
203 | #endif /* not NO_STDARG */ | |
204 | ||
205 | /* The common portion of as_warn and as_warn_where. */ | |
206 | ||
207 | static void | |
208 | as_warn_internal (file, line, buffer) | |
209 | char *file; | |
210 | unsigned int line; | |
211 | char *buffer; | |
212 | { | |
213 | ++warning_count; | |
214 | ||
215 | if (file == NULL) | |
216 | as_where (&file, &line); | |
217 | ||
218 | identify (file); | |
219 | if (file) | |
220 | fprintf (stderr, "%s:%u: ", file, line); | |
221 | fprintf (stderr, _("Warning: ")); | |
222 | fputs (buffer, stderr); | |
223 | (void) putc ('\n', stderr); | |
224 | #ifndef NO_LISTING | |
225 | listing_warning (buffer); | |
226 | #endif | |
227 | } | |
228 | ||
229 | /* | |
230 | * a s _ w a r n () | |
231 | * | |
232 | * Send to stderr a string as a warning, and locate warning | |
233 | * in input file(s). | |
234 | * Please only use this for when we have some recovery action. | |
235 | * Please explain in string (which may have '\n's) what recovery was done. | |
236 | */ | |
237 | ||
238 | #ifdef USE_STDARG | |
c488923f | 239 | void |
252b5132 RH |
240 | as_warn (const char *format,...) |
241 | { | |
242 | va_list args; | |
243 | char buffer[2000]; | |
244 | ||
245 | if (!flag_no_warnings) | |
246 | { | |
247 | va_start (args, format); | |
248 | vsprintf (buffer, format, args); | |
249 | va_end (args); | |
250 | as_warn_internal ((char *) NULL, 0, buffer); | |
251 | } | |
252 | } /* as_warn() */ | |
253 | #else | |
254 | /*VARARGS1 */ | |
c488923f | 255 | void |
252b5132 RH |
256 | as_warn (format, va_alist) |
257 | const char *format; | |
258 | va_dcl | |
259 | { | |
260 | va_list args; | |
261 | char buffer[2000]; | |
262 | ||
263 | if (!flag_no_warnings) | |
264 | { | |
265 | va_start (args); | |
266 | vsprintf (buffer, format, args); | |
267 | va_end (args); | |
268 | as_warn_internal ((char *) NULL, 0, buffer); | |
269 | } | |
270 | } /* as_warn() */ | |
271 | #endif /* not NO_STDARG */ | |
272 | ||
273 | /* as_warn_where, like as_bad but the file name and line number are | |
274 | passed in. Unfortunately, we have to repeat the function in order | |
275 | to handle the varargs correctly and portably. */ | |
276 | ||
277 | #ifdef USE_STDARG | |
c488923f | 278 | void |
252b5132 RH |
279 | as_warn_where (char *file, unsigned int line, const char *format,...) |
280 | { | |
281 | va_list args; | |
282 | char buffer[2000]; | |
283 | ||
284 | if (!flag_no_warnings) | |
285 | { | |
286 | va_start (args, format); | |
287 | vsprintf (buffer, format, args); | |
288 | va_end (args); | |
289 | as_warn_internal (file, line, buffer); | |
290 | } | |
291 | } /* as_warn() */ | |
292 | #else | |
293 | /*VARARGS1 */ | |
c488923f | 294 | void |
252b5132 RH |
295 | as_warn_where (file, line, format, va_alist) |
296 | char *file; | |
297 | unsigned int line; | |
298 | const char *format; | |
299 | va_dcl | |
300 | { | |
301 | va_list args; | |
302 | char buffer[2000]; | |
303 | ||
304 | if (!flag_no_warnings) | |
305 | { | |
306 | va_start (args); | |
307 | vsprintf (buffer, format, args); | |
308 | va_end (args); | |
309 | as_warn_internal (file, line, buffer); | |
310 | } | |
311 | } /* as_warn() */ | |
312 | #endif /* not NO_STDARG */ | |
313 | ||
314 | /* The common portion of as_bad and as_bad_where. */ | |
315 | ||
316 | static void | |
317 | as_bad_internal (file, line, buffer) | |
318 | char *file; | |
319 | unsigned int line; | |
320 | char *buffer; | |
321 | { | |
322 | ++error_count; | |
323 | ||
324 | if (file == NULL) | |
325 | as_where (&file, &line); | |
326 | ||
327 | identify (file); | |
328 | if (file) | |
329 | fprintf (stderr, "%s:%u: ", file, line); | |
330 | fprintf (stderr, _("Error: ")); | |
331 | fputs (buffer, stderr); | |
332 | (void) putc ('\n', stderr); | |
333 | #ifndef NO_LISTING | |
334 | listing_error (buffer); | |
335 | #endif | |
336 | } | |
337 | ||
338 | /* | |
339 | * a s _ b a d () | |
340 | * | |
341 | * Send to stderr a string as a warning, and locate warning in input file(s). | |
342 | * Please us when there is no recovery, but we want to continue processing | |
343 | * but not produce an object file. | |
344 | * Please explain in string (which may have '\n's) what recovery was done. | |
345 | */ | |
346 | ||
347 | #ifdef USE_STDARG | |
c488923f | 348 | void |
252b5132 RH |
349 | as_bad (const char *format,...) |
350 | { | |
351 | va_list args; | |
352 | char buffer[2000]; | |
353 | ||
354 | va_start (args, format); | |
355 | vsprintf (buffer, format, args); | |
356 | va_end (args); | |
357 | ||
358 | as_bad_internal ((char *) NULL, 0, buffer); | |
359 | } | |
360 | ||
361 | #else | |
362 | /*VARARGS1 */ | |
c488923f | 363 | void |
252b5132 RH |
364 | as_bad (format, va_alist) |
365 | const char *format; | |
366 | va_dcl | |
367 | { | |
368 | va_list args; | |
369 | char buffer[2000]; | |
370 | ||
371 | va_start (args); | |
372 | vsprintf (buffer, format, args); | |
373 | va_end (args); | |
374 | ||
375 | as_bad_internal ((char *) NULL, 0, buffer); | |
376 | } | |
377 | #endif /* not NO_STDARG */ | |
378 | ||
379 | /* as_bad_where, like as_bad but the file name and line number are | |
380 | passed in. Unfortunately, we have to repeat the function in order | |
381 | to handle the varargs correctly and portably. */ | |
382 | ||
383 | #ifdef USE_STDARG | |
c488923f | 384 | void |
252b5132 RH |
385 | as_bad_where (char *file, unsigned int line, const char *format,...) |
386 | { | |
387 | va_list args; | |
388 | char buffer[2000]; | |
389 | ||
390 | va_start (args, format); | |
391 | vsprintf (buffer, format, args); | |
392 | va_end (args); | |
393 | ||
394 | as_bad_internal (file, line, buffer); | |
395 | } | |
396 | ||
397 | #else | |
398 | /*VARARGS1 */ | |
c488923f | 399 | void |
252b5132 RH |
400 | as_bad_where (file, line, format, va_alist) |
401 | char *file; | |
402 | unsigned int line; | |
403 | const char *format; | |
404 | va_dcl | |
405 | { | |
406 | va_list args; | |
407 | char buffer[2000]; | |
408 | ||
409 | va_start (args); | |
410 | vsprintf (buffer, format, args); | |
411 | va_end (args); | |
412 | ||
413 | as_bad_internal (file, line, buffer); | |
414 | } | |
415 | #endif /* not NO_STDARG */ | |
416 | ||
417 | /* | |
418 | * a s _ f a t a l () | |
419 | * | |
420 | * Send to stderr a string as a fatal message, and print location of error in | |
421 | * input file(s). | |
422 | * Please only use this for when we DON'T have some recovery action. | |
423 | * It xexit()s with a warning status. | |
424 | */ | |
425 | ||
426 | #ifdef USE_STDARG | |
c488923f | 427 | void |
252b5132 RH |
428 | as_fatal (const char *format,...) |
429 | { | |
430 | va_list args; | |
431 | ||
432 | as_show_where (); | |
433 | va_start (args, format); | |
434 | fprintf (stderr, _("Fatal error: ")); | |
435 | vfprintf (stderr, format, args); | |
436 | (void) putc ('\n', stderr); | |
437 | va_end (args); | |
438 | xexit (EXIT_FAILURE); | |
439 | } /* as_fatal() */ | |
440 | #else | |
441 | /*VARARGS1*/ | |
c488923f | 442 | void |
252b5132 RH |
443 | as_fatal (format, va_alist) |
444 | char *format; | |
445 | va_dcl | |
446 | { | |
447 | va_list args; | |
448 | ||
449 | as_show_where (); | |
450 | va_start (args); | |
451 | fprintf (stderr, _("Fatal error: ")); | |
452 | vfprintf (stderr, format, args); | |
453 | (void) putc ('\n', stderr); | |
454 | va_end (args); | |
455 | xexit (EXIT_FAILURE); | |
456 | } /* as_fatal() */ | |
457 | #endif /* not NO_STDARG */ | |
458 | ||
459 | /* | |
460 | * as_assert: Indicate assertion failure. | |
461 | * Arguments: Filename, line number, optional function name. | |
462 | */ | |
463 | ||
464 | void | |
465 | as_assert (file, line, fn) | |
466 | const char *file, *fn; | |
467 | int line; | |
468 | { | |
469 | as_show_where (); | |
470 | fprintf (stderr, _("Internal error!\n")); | |
471 | if (fn) | |
472 | fprintf (stderr, _("Assertion failure in %s at %s line %d.\n"), | |
473 | fn, file, line); | |
474 | else | |
475 | fprintf (stderr, _("Assertion failure at %s line %d.\n"), file, line); | |
476 | fprintf (stderr, _("Please report this bug.\n")); | |
477 | xexit (EXIT_FAILURE); | |
478 | } | |
479 | ||
480 | /* as_abort: Print a friendly message saying how totally hosed we are, | |
481 | and exit without producing a core file. */ | |
482 | void | |
483 | as_abort (file, line, fn) | |
484 | const char *file, *fn; | |
485 | int line; | |
486 | { | |
487 | as_show_where (); | |
488 | if (fn) | |
489 | fprintf (stderr, _("Internal error, aborting at %s line %d in %s\n"), | |
490 | file, line, fn); | |
491 | else | |
492 | fprintf (stderr, _("Internal error, aborting at %s line %d\n"), | |
493 | file, line); | |
494 | fprintf (stderr, _("Please report this bug.\n")); | |
495 | xexit (EXIT_FAILURE); | |
496 | } | |
497 | ||
498 | /* Support routines. */ | |
499 | ||
500 | void | |
501 | fprint_value (file, val) | |
502 | FILE *file; | |
503 | valueT val; | |
504 | { | |
505 | if (sizeof (val) <= sizeof (long)) | |
506 | { | |
507 | fprintf (file, "%ld", (long) val); | |
508 | return; | |
509 | } | |
510 | #ifdef BFD_ASSEMBLER | |
511 | if (sizeof (val) <= sizeof (bfd_vma)) | |
512 | { | |
513 | fprintf_vma (file, val); | |
514 | return; | |
515 | } | |
516 | #endif | |
517 | abort (); | |
518 | } | |
519 | ||
520 | void | |
521 | sprint_value (buf, val) | |
522 | char *buf; | |
523 | valueT val; | |
524 | { | |
525 | if (sizeof (val) <= sizeof (long)) | |
526 | { | |
527 | sprintf (buf, "%ld", (long) val); | |
528 | return; | |
529 | } | |
530 | #ifdef BFD_ASSEMBLER | |
531 | if (sizeof (val) <= sizeof (bfd_vma)) | |
532 | { | |
533 | sprintf_vma (buf, val); | |
534 | return; | |
535 | } | |
536 | #endif | |
537 | abort (); | |
538 | } | |
539 | ||
540 | /* end of messages.c */ |