| 1 | /* messages.c - error reporter - |
| 2 | Copyright (C) 1987, 1991, 1992 Free Software Foundation, Inc. |
| 3 | |
| 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 |
| 18 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ |
| 19 | |
| 20 | #include <stdio.h> |
| 21 | #include <errno.h> |
| 22 | |
| 23 | #include "as.h" |
| 24 | |
| 25 | #ifndef __STDC__ |
| 26 | #ifndef NO_STDARG |
| 27 | #define NO_STDARG |
| 28 | #endif |
| 29 | #endif |
| 30 | |
| 31 | #ifndef NO_STDARG |
| 32 | #include <stdarg.h> |
| 33 | #else |
| 34 | #ifndef NO_VARARGS |
| 35 | #include <varargs.h> |
| 36 | #endif /* NO_VARARGS */ |
| 37 | #endif /* NO_STDARG */ |
| 38 | |
| 39 | extern char *strerror (); |
| 40 | |
| 41 | static void as_show_where PARAMS ((void)); |
| 42 | static void as_warn_internal PARAMS ((char *, unsigned int, char *)); |
| 43 | static void as_bad_internal PARAMS ((char *, unsigned int, char *)); |
| 44 | |
| 45 | /* |
| 46 | * Despite the rest of the comments in this file, (FIXME-SOON), |
| 47 | * here is the current scheme for error messages etc: |
| 48 | * |
| 49 | * as_fatal() is used when gas is quite confused and |
| 50 | * continuing the assembly is pointless. In this case we |
| 51 | * exit immediately with error status. |
| 52 | * |
| 53 | * as_bad() is used to mark errors that result in what we |
| 54 | * presume to be a useless object file. Say, we ignored |
| 55 | * something that might have been vital. If we see any of |
| 56 | * these, assembly will continue to the end of the source, |
| 57 | * no object file will be produced, and we will terminate |
| 58 | * with error status. The new option, -Z, tells us to |
| 59 | * produce an object file anyway but we still exit with |
| 60 | * error status. The assumption here is that you don't want |
| 61 | * this object file but we could be wrong. |
| 62 | * |
| 63 | * as_warn() is used when we have an error from which we |
| 64 | * have a plausible error recovery. eg, masking the top |
| 65 | * bits of a constant that is longer than will fit in the |
| 66 | * destination. In this case we will continue to assemble |
| 67 | * the source, although we may have made a bad assumption, |
| 68 | * and we will produce an object file and return normal exit |
| 69 | * status (ie, no error). The new option -X tells us to |
| 70 | * treat all as_warn() errors as as_bad() errors. That is, |
| 71 | * no object file will be produced and we will exit with |
| 72 | * error status. The idea here is that we don't kill an |
| 73 | * entire make because of an error that we knew how to |
| 74 | * correct. On the other hand, sometimes you might want to |
| 75 | * stop the make at these points. |
| 76 | * |
| 77 | * as_tsktsk() is used when we see a minor error for which |
| 78 | * our error recovery action is almost certainly correct. |
| 79 | * In this case, we print a message and then assembly |
| 80 | * continues as though no error occurred. |
| 81 | */ |
| 82 | |
| 83 | static void |
| 84 | identify (file) |
| 85 | char *file; |
| 86 | { |
| 87 | static int identified; |
| 88 | if (identified) |
| 89 | return; |
| 90 | identified++; |
| 91 | |
| 92 | if (!file) |
| 93 | { |
| 94 | unsigned int x; |
| 95 | as_where (&file, &x); |
| 96 | } |
| 97 | |
| 98 | fprintf (stderr, "%s: Assembler messages:\n", file); |
| 99 | } |
| 100 | |
| 101 | static int warning_count; /* Count of number of warnings issued */ |
| 102 | |
| 103 | int |
| 104 | had_warnings () |
| 105 | { |
| 106 | return (warning_count); |
| 107 | } /* had_err() */ |
| 108 | |
| 109 | /* Nonzero if we've hit a 'bad error', and should not write an obj file, |
| 110 | and exit with a nonzero error code */ |
| 111 | |
| 112 | static int error_count; |
| 113 | |
| 114 | int |
| 115 | had_errors () |
| 116 | { |
| 117 | return (error_count); |
| 118 | } /* had_errors() */ |
| 119 | |
| 120 | |
| 121 | /* Print the current location to stderr. */ |
| 122 | |
| 123 | static void |
| 124 | as_show_where () |
| 125 | { |
| 126 | char *file; |
| 127 | unsigned int line; |
| 128 | |
| 129 | as_where (&file, &line); |
| 130 | identify (file); |
| 131 | fprintf (stderr, "%s:%u: ", file, line); |
| 132 | } |
| 133 | |
| 134 | /* |
| 135 | * a s _ p e r r o r |
| 136 | * |
| 137 | * Like perror(3), but with more info. |
| 138 | */ |
| 139 | |
| 140 | void |
| 141 | as_perror (gripe, filename) |
| 142 | const char *gripe; /* Unpunctuated error theme. */ |
| 143 | const char *filename; |
| 144 | { |
| 145 | const char *errtxt; |
| 146 | |
| 147 | as_show_where (); |
| 148 | fprintf (stderr, gripe, filename); |
| 149 | #ifdef BFD_ASSEMBLER |
| 150 | errtxt = bfd_errmsg (bfd_get_error ()); |
| 151 | #else |
| 152 | errtxt = strerror (errno); |
| 153 | #endif |
| 154 | fprintf (stderr, ": %s\n", errtxt); |
| 155 | errno = 0; |
| 156 | #ifdef BFD_ASSEMBLER |
| 157 | bfd_set_error (bfd_error_no_error); |
| 158 | #endif |
| 159 | } |
| 160 | |
| 161 | /* |
| 162 | * a s _ t s k t s k () |
| 163 | * |
| 164 | * Send to stderr a string as a warning, and locate warning |
| 165 | * in input file(s). |
| 166 | * Please only use this for when we have some recovery action. |
| 167 | * Please explain in string (which may have '\n's) what recovery was done. |
| 168 | */ |
| 169 | |
| 170 | #ifndef NO_STDARG |
| 171 | void |
| 172 | as_tsktsk (const char *format,...) |
| 173 | { |
| 174 | va_list args; |
| 175 | |
| 176 | as_show_where (); |
| 177 | va_start (args, format); |
| 178 | vfprintf (stderr, format, args); |
| 179 | va_end (args); |
| 180 | (void) putc ('\n', stderr); |
| 181 | } /* as_tsktsk() */ |
| 182 | |
| 183 | #else |
| 184 | #ifndef NO_VARARGS |
| 185 | void |
| 186 | as_tsktsk (format, va_alist) |
| 187 | char *format; |
| 188 | va_dcl |
| 189 | { |
| 190 | va_list args; |
| 191 | |
| 192 | as_show_where (); |
| 193 | va_start (args); |
| 194 | vfprintf (stderr, format, args); |
| 195 | va_end (args); |
| 196 | (void) putc ('\n', stderr); |
| 197 | } /* as_tsktsk() */ |
| 198 | |
| 199 | #else |
| 200 | /*VARARGS1 */ |
| 201 | as_tsktsk (format, args) |
| 202 | char *format; |
| 203 | { |
| 204 | as_show_where (); |
| 205 | _doprnt (format, &args, stderr); |
| 206 | (void) putc ('\n', stderr); |
| 207 | } /* as_tsktsk */ |
| 208 | |
| 209 | #endif /* not NO_VARARGS */ |
| 210 | #endif /* not NO_STDARG */ |
| 211 | |
| 212 | /* The common portion of as_warn and as_warn_where. */ |
| 213 | |
| 214 | static void |
| 215 | as_warn_internal (file, line, buffer) |
| 216 | char *file; |
| 217 | unsigned int line; |
| 218 | char *buffer; |
| 219 | { |
| 220 | ++warning_count; |
| 221 | |
| 222 | if (file == NULL) |
| 223 | as_where (&file, &line); |
| 224 | |
| 225 | identify (file); |
| 226 | fprintf (stderr, "%s:%u: Warning: ", file, line); |
| 227 | fputs (buffer, stderr); |
| 228 | (void) putc ('\n', stderr); |
| 229 | #ifndef NO_LISTING |
| 230 | listing_warning (buffer); |
| 231 | #endif |
| 232 | } |
| 233 | |
| 234 | /* |
| 235 | * a s _ w a r n () |
| 236 | * |
| 237 | * Send to stderr a string as a warning, and locate warning |
| 238 | * in input file(s). |
| 239 | * Please only use this for when we have some recovery action. |
| 240 | * Please explain in string (which may have '\n's) what recovery was done. |
| 241 | */ |
| 242 | |
| 243 | #ifndef NO_STDARG |
| 244 | void |
| 245 | as_warn (const char *format,...) |
| 246 | { |
| 247 | va_list args; |
| 248 | char buffer[200]; |
| 249 | |
| 250 | if (!flagseen['W']) |
| 251 | { |
| 252 | va_start (args, format); |
| 253 | vsprintf (buffer, format, args); |
| 254 | va_end (args); |
| 255 | as_warn_internal ((char *) NULL, 0, buffer); |
| 256 | } |
| 257 | } /* as_warn() */ |
| 258 | |
| 259 | #else |
| 260 | #ifndef NO_VARARGS |
| 261 | void |
| 262 | as_warn (format, va_alist) |
| 263 | char *format; |
| 264 | va_dcl |
| 265 | { |
| 266 | va_list args; |
| 267 | char buffer[200]; |
| 268 | |
| 269 | if (!flagseen['W']) |
| 270 | { |
| 271 | va_start (args); |
| 272 | vsprintf (buffer, format, args); |
| 273 | va_end (args); |
| 274 | as_warn_internal ((char *) NULL, 0, buffer); |
| 275 | } |
| 276 | } /* as_warn() */ |
| 277 | |
| 278 | #else |
| 279 | /*VARARGS1 */ |
| 280 | as_warn (format, args) |
| 281 | char *format; |
| 282 | { |
| 283 | if (!flagseen['W']) |
| 284 | { |
| 285 | ++warning_count; |
| 286 | as_show_where (); |
| 287 | fprintf (stderr, "Warning: "); |
| 288 | _doprnt (format, &args, stderr); |
| 289 | (void) putc ('\n', stderr); |
| 290 | } |
| 291 | } /* as_warn() */ |
| 292 | |
| 293 | #endif /* not NO_VARARGS */ |
| 294 | #endif /* not NO_STDARG */ |
| 295 | |
| 296 | /* as_warn_where, like as_bad but the file name and line number are |
| 297 | passed in. Unfortunately, we have to repeat the function in order |
| 298 | to handle the varargs correctly and portably. */ |
| 299 | |
| 300 | #ifndef NO_STDARG |
| 301 | void |
| 302 | as_warn_where (char *file, unsigned int line, const char *format,...) |
| 303 | { |
| 304 | va_list args; |
| 305 | char buffer[200]; |
| 306 | |
| 307 | if (!flagseen['W']) |
| 308 | { |
| 309 | va_start (args, format); |
| 310 | vsprintf (buffer, format, args); |
| 311 | va_end (args); |
| 312 | as_warn_internal (file, line, buffer); |
| 313 | } |
| 314 | } /* as_warn() */ |
| 315 | |
| 316 | #else |
| 317 | #ifndef NO_VARARGS |
| 318 | void |
| 319 | as_warn_where (file, line, format, va_alist) |
| 320 | char *file; |
| 321 | unsigned int line; |
| 322 | char *format; |
| 323 | va_dcl |
| 324 | { |
| 325 | va_list args; |
| 326 | char buffer[200]; |
| 327 | |
| 328 | if (!flagseen['W']) |
| 329 | { |
| 330 | va_start (args); |
| 331 | vsprintf (buffer, format, args); |
| 332 | va_end (args); |
| 333 | as_warn_internal (file, line, buffer); |
| 334 | } |
| 335 | } /* as_warn() */ |
| 336 | |
| 337 | #else |
| 338 | /*VARARGS1 */ |
| 339 | as_warn_where (file, line, format, args) |
| 340 | char *file; |
| 341 | unsigned int line; |
| 342 | char *format; |
| 343 | { |
| 344 | if (!flagseen['W']) |
| 345 | { |
| 346 | ++warning_count; |
| 347 | identify (file); |
| 348 | fprintf (stderr, "%s:%u: Warning: ", file, line); |
| 349 | _doprnt (format, &args, stderr); |
| 350 | (void) putc ('\n', stderr); |
| 351 | } |
| 352 | } /* as_warn() */ |
| 353 | |
| 354 | #endif /* not NO_VARARGS */ |
| 355 | #endif /* not NO_STDARG */ |
| 356 | |
| 357 | /* The common portion of as_bad and as_bad_where. */ |
| 358 | |
| 359 | static void |
| 360 | as_bad_internal (file, line, buffer) |
| 361 | char *file; |
| 362 | unsigned int line; |
| 363 | char *buffer; |
| 364 | { |
| 365 | ++error_count; |
| 366 | |
| 367 | if (file == NULL) |
| 368 | as_where (&file, &line); |
| 369 | |
| 370 | identify (file); |
| 371 | fprintf (stderr, "%s:%u: Error: ", file, line); |
| 372 | fputs (buffer, stderr); |
| 373 | (void) putc ('\n', stderr); |
| 374 | #ifndef NO_LISTING |
| 375 | listing_error (buffer); |
| 376 | #endif |
| 377 | } |
| 378 | |
| 379 | /* |
| 380 | * a s _ b a d () |
| 381 | * |
| 382 | * Send to stderr a string as a warning, and locate warning in input file(s). |
| 383 | * Please us when there is no recovery, but we want to continue processing |
| 384 | * but not produce an object file. |
| 385 | * Please explain in string (which may have '\n's) what recovery was done. |
| 386 | */ |
| 387 | |
| 388 | #ifndef NO_STDARG |
| 389 | void |
| 390 | as_bad (const char *format,...) |
| 391 | { |
| 392 | va_list args; |
| 393 | char buffer[200]; |
| 394 | |
| 395 | va_start (args, format); |
| 396 | vsprintf (buffer, format, args); |
| 397 | va_end (args); |
| 398 | |
| 399 | as_bad_internal ((char *) NULL, 0, buffer); |
| 400 | } |
| 401 | |
| 402 | #else |
| 403 | #ifndef NO_VARARGS |
| 404 | void |
| 405 | as_bad (format, va_alist) |
| 406 | char *format; |
| 407 | va_dcl |
| 408 | { |
| 409 | va_list args; |
| 410 | char buffer[200]; |
| 411 | |
| 412 | va_start (args); |
| 413 | vsprintf (buffer, format, args); |
| 414 | va_end (args); |
| 415 | |
| 416 | as_bad_internal ((char *) NULL, 0, buffer); |
| 417 | } |
| 418 | |
| 419 | #else |
| 420 | /*VARARGS1 */ |
| 421 | as_bad (format, args) |
| 422 | char *format; |
| 423 | { |
| 424 | ++error_count; |
| 425 | |
| 426 | as_show_where (); |
| 427 | fprintf (stderr, "Error: "); |
| 428 | _doprnt (format, &args, stderr); |
| 429 | (void) putc ('\n', stderr); |
| 430 | } /* as_bad() */ |
| 431 | |
| 432 | #endif /* not NO_VARARGS */ |
| 433 | #endif /* not NO_STDARG */ |
| 434 | |
| 435 | /* as_bad_where, like as_bad but the file name and line number are |
| 436 | passed in. Unfortunately, we have to repeat the function in order |
| 437 | to handle the varargs correctly and portably. */ |
| 438 | |
| 439 | #ifndef NO_STDARG |
| 440 | void |
| 441 | as_bad_where (char *file, unsigned int line, const char *format,...) |
| 442 | { |
| 443 | va_list args; |
| 444 | char buffer[200]; |
| 445 | |
| 446 | va_start (args, format); |
| 447 | vsprintf (buffer, format, args); |
| 448 | va_end (args); |
| 449 | |
| 450 | as_bad_internal (file, line, buffer); |
| 451 | } |
| 452 | |
| 453 | #else |
| 454 | #ifndef NO_VARARGS |
| 455 | void |
| 456 | as_bad_where (file, line, format, va_alist) |
| 457 | char *file; |
| 458 | unsigned int line; |
| 459 | char *format; |
| 460 | va_dcl |
| 461 | { |
| 462 | va_list args; |
| 463 | char buffer[200]; |
| 464 | |
| 465 | va_start (args); |
| 466 | vsprintf (buffer, format, args); |
| 467 | va_end (args); |
| 468 | |
| 469 | as_bad_internal (file, line, buffer); |
| 470 | } |
| 471 | |
| 472 | #else |
| 473 | /*VARARGS1 */ |
| 474 | as_bad_where (file, line, format, args) |
| 475 | char *file; |
| 476 | unsigned int line; |
| 477 | char *format; |
| 478 | { |
| 479 | ++error_count; |
| 480 | |
| 481 | identify (file); |
| 482 | fprintf (stderr, "%s:%u: Error: ", file, line); |
| 483 | _doprnt (format, &args, stderr); |
| 484 | (void) putc ('\n', stderr); |
| 485 | } /* as_bad() */ |
| 486 | |
| 487 | #endif /* not NO_VARARGS */ |
| 488 | #endif /* not NO_STDARG */ |
| 489 | |
| 490 | /* |
| 491 | * a s _ f a t a l () |
| 492 | * |
| 493 | * Send to stderr a string as a fatal message, and print location of error in |
| 494 | * input file(s). |
| 495 | * Please only use this for when we DON'T have some recovery action. |
| 496 | * It exit()s with a warning status. |
| 497 | */ |
| 498 | |
| 499 | #ifndef NO_STDARG |
| 500 | void |
| 501 | as_fatal (const char *format,...) |
| 502 | { |
| 503 | va_list args; |
| 504 | |
| 505 | as_show_where (); |
| 506 | va_start (args, format); |
| 507 | fprintf (stderr, "Fatal error:"); |
| 508 | vfprintf (stderr, format, args); |
| 509 | (void) putc ('\n', stderr); |
| 510 | va_end (args); |
| 511 | exit (33); |
| 512 | } /* as_fatal() */ |
| 513 | |
| 514 | #else |
| 515 | #ifndef NO_VARARGS |
| 516 | void |
| 517 | as_fatal (format, va_alist) |
| 518 | char *format; |
| 519 | va_dcl |
| 520 | { |
| 521 | va_list args; |
| 522 | |
| 523 | as_show_where (); |
| 524 | va_start (args); |
| 525 | fprintf (stderr, "Fatal error:"); |
| 526 | vfprintf (stderr, format, args); |
| 527 | (void) putc ('\n', stderr); |
| 528 | va_end (args); |
| 529 | exit (33); |
| 530 | } /* as_fatal() */ |
| 531 | |
| 532 | #else |
| 533 | /*VARARGS1 */ |
| 534 | as_fatal (format, args) |
| 535 | char *format; |
| 536 | { |
| 537 | as_show_where (); |
| 538 | fprintf (stderr, "Fatal error:"); |
| 539 | _doprnt (format, &args, stderr); |
| 540 | (void) putc ('\n', stderr); |
| 541 | exit (33); /* What is a good exit status? */ |
| 542 | } /* as_fatal() */ |
| 543 | |
| 544 | #endif /* not NO_VARARGS */ |
| 545 | #endif /* not NO_STDARG */ |
| 546 | |
| 547 | void |
| 548 | fprint_value (file, val) |
| 549 | FILE *file; |
| 550 | valueT val; |
| 551 | { |
| 552 | if (sizeof (val) <= sizeof (long)) |
| 553 | { |
| 554 | fprintf (file, "%ld", val); |
| 555 | return; |
| 556 | } |
| 557 | #ifdef BFD_ASSEMBLER |
| 558 | if (sizeof (val) <= sizeof (bfd_vma)) |
| 559 | { |
| 560 | fprintf_vma (file, val); |
| 561 | return; |
| 562 | } |
| 563 | #endif |
| 564 | abort (); |
| 565 | } |
| 566 | |
| 567 | void |
| 568 | sprint_value (buf, val) |
| 569 | char *buf; |
| 570 | valueT val; |
| 571 | { |
| 572 | if (sizeof (val) <= sizeof (long)) |
| 573 | { |
| 574 | sprintf (buf, "%ld", val); |
| 575 | return; |
| 576 | } |
| 577 | #ifdef BFD_ASSEMBLER |
| 578 | if (sizeof (val) <= sizeof (bfd_vma)) |
| 579 | { |
| 580 | sprintf_vma (buf, val); |
| 581 | return; |
| 582 | } |
| 583 | #endif |
| 584 | abort (); |
| 585 | } |
| 586 | |
| 587 | /* end of messages.c */ |