xref: /illumos-gate/usr/src/cmd/sgs/error/common/errorinput.c (revision c94be9439c4f0773ef60e2cec21d548359cfea20)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 
23 /*
24  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
25  * Use is subject to license terms.
26  */
27 
28 #include <stdio.h>
29 #include <ctype.h>
30 #include <string.h>
31 #include <stdlib.h>
32 #include "error.h"
33 
34 int	wordc;		/* how long the current error message is */
35 char	**wordv;	/* the actual error message */
36 
37 int	nerrors;
38 int	language;
39 
40 Errorclass	onelong(void);
41 Errorclass	cpp(void);
42 Errorclass	pccccom(void);	/* Portable C Compiler C Compiler */
43 Errorclass	richieccom(void);	/* Richie Compiler for 11 */
44 Errorclass	lint0(void);
45 Errorclass	lint1(void);
46 Errorclass	lint2(void);
47 Errorclass	lint3(void);
48 Errorclass	make(void);
49 Errorclass	f77(void);
50 Errorclass	pi(void);
51 Errorclass	ri(void);
52 Errorclass	troff(void);
53 Errorclass	mod2(void);
54 Errorclass	sunf77(void);
55 
56 static Errorclass catchall(void);
57 
58 /*
59  *	Eat all of the lines in the input file, attempting to categorize
60  *	them by their various flavors
61  */
62 static	char	inbuffer[BUFSIZ];
63 
64 void
65 eaterrors(int *r_errorc, Eptr **r_errorv)
66 {
67 	Errorclass	errorclass = C_SYNC;
68 
69 	for (;;) {
70 		if (fgets(inbuffer, BUFSIZ, errorfile) == NULL)
71 			break;
72 		wordvbuild(inbuffer, &wordc, &wordv);
73 		/*
74 		 * for convenience, convert wordv to be 1 based, instead
75 		 * of 0 based.
76 		 */
77 		wordv -= 1;
78 		/*
79 		 * check for sunf77 errors has to be done before
80 		 * pccccom to be able to distingush between the two
81 		 */
82 		if ((wordc > 0) &&
83 		    (((errorclass = onelong()) != C_UNKNOWN) ||
84 		    ((errorclass = cpp()) != C_UNKNOWN) ||
85 		    ((errorclass = sunf77()) != C_UNKNOWN) ||
86 		    ((errorclass = pccccom()) != C_UNKNOWN) ||
87 		    ((errorclass = richieccom()) != C_UNKNOWN) ||
88 		    ((errorclass = lint0()) != C_UNKNOWN) ||
89 		    ((errorclass = lint1()) != C_UNKNOWN) ||
90 		    ((errorclass = lint2()) != C_UNKNOWN) ||
91 		    ((errorclass = lint3()) != C_UNKNOWN) ||
92 		    ((errorclass = make()) != C_UNKNOWN) ||
93 		    ((errorclass = f77()) != C_UNKNOWN) ||
94 		    ((errorclass = pi()) != C_UNKNOWN) ||
95 		    ((errorclass = ri()) != C_UNKNOWN) ||
96 		    ((errorclass = troff()) != C_UNKNOWN) ||
97 		    ((errorclass = mod2()) != C_UNKNOWN) ||
98 		    ((errorclass = troff()) != C_UNKNOWN))) {
99 		    /* EMPTY */
100 		} else {
101 			errorclass = catchall();
102 		}
103 		if (wordc)
104 			erroradd(wordc, wordv+1, errorclass, C_UNKNOWN);
105 	}
106 #ifdef FULLDEBUG
107 	printf("%d errorentrys\n", nerrors);
108 #endif
109 	arrayify(r_errorc, r_errorv, er_head);
110 }
111 
112 /*
113  *	create a new error entry, given a zero based array and count
114  */
115 void
116 erroradd(int errorlength, char **errorv, Errorclass errorclass,
117     Errorclass errorsubclass)
118 {
119 	Eptr	newerror;
120 	char	*cp;
121 
122 	if (errorclass == C_TRUE) {
123 		/* check canonicalization of the second argument */
124 		for (cp = errorv[1]; *cp && isdigit(*cp); cp++)
125 			continue;
126 		errorclass = (*cp == '\0') ? C_TRUE : C_NONSPEC;
127 #ifdef FULLDEBUG
128 		if (errorclass != C_TRUE)
129 			printf("The 2nd word, \"%s\" is not a number.\n",
130 			    errorv[1]);
131 #endif
132 	}
133 	if (errorlength > 0) {
134 		newerror = Calloc(1, sizeof (Edesc));
135 		newerror->error_language = language; /* language is global */
136 		newerror->error_text = errorv;
137 		newerror->error_lgtext = errorlength;
138 		if (errorclass == C_TRUE)
139 			newerror->error_line = atoi(errorv[1]);
140 		newerror->error_e_class = errorclass;
141 		newerror->error_s_class = errorsubclass;
142 		switch (newerror->error_e_class = discardit(newerror)) {
143 			case C_SYNC:		nsyncerrors++; break;
144 			case C_DISCARD:		ndiscard++; break;
145 			case C_NULLED:		nnulled++; break;
146 			case C_NONSPEC:		nnonspec++; break;
147 			case C_THISFILE:	nthisfile++; break;
148 			case C_TRUE:		ntrue++; break;
149 			case C_UNKNOWN:		nunknown++; break;
150 			case C_IGNORE:		nignore++; break;
151 		}
152 		newerror->error_next = er_head;
153 		er_head = newerror;
154 		newerror->error_no = nerrors++;
155 	}	/* length > 0 */
156 }
157 
158 Errorclass
159 onelong(void)
160 {
161 	char	**nwordv;
162 	if ((wordc == 1) && (language != INLD)) {
163 		/*
164 		 *	We have either:
165 		 *	a)	file name from cc
166 		 *	b)	Assembler telling world that it is complaining
167 		 *	c)	Noise from make ("Stop.")
168 		 *	c)	Random noise
169 		 */
170 		wordc = 0;
171 		if (wordv[1] != NULL && strcmp(wordv[1], "Stop.") == 0) {
172 			language = INMAKE;
173 			return (C_SYNC);
174 		}
175 		if (wordv[1] != NULL) {
176 			if (strcmp(wordv[1], "Assembler:") == 0) {
177 				/*
178 				 * assembler always alerts us to
179 				 * what happened
180 				 */
181 				language = INAS;
182 				return (C_SYNC);
183 			} else if (strcmp(wordv[1], "Undefined:") == 0) {
184 				/* loader complains about unknown symbols */
185 				language = INLD;
186 				return (C_SYNC);
187 			}
188 		}
189 		if (lastchar(wordv[1]) == ':') {
190 			/* cc tells us what file we are in */
191 			/* Sunf77 tells us what subroutine we are in */
192 			currentfilename = wordv[1];
193 			(void) substitute(currentfilename, ':', '\0');
194 			language = INCC;
195 			return (C_SYNC);
196 		}
197 	} else if ((wordc == 1) && (language == INLD)) {
198 		nwordv = Calloc(4, sizeof (char *));
199 		nwordv[0] = "ld:";
200 		nwordv[1] = wordv[1];
201 		nwordv[2] = "is";
202 		nwordv[3] = "undefined.";
203 		wordc = 4;
204 		wordv = nwordv - 1;
205 		return (C_NONSPEC);
206 	} else if (wordc == 1) {
207 		/*
208 		 * any other single word messages are
209 		 * considered synchronizing
210 		 */
211 		return (C_SYNC);
212 	} else
213 	/* Sunf77 may derive 2-word synchronizing messages ending with a `:' */
214 	if ((wordc == 2) && (lastchar(wordv[2]) == ':')) {
215 		wordc = 0;
216 		language = INSUNF77;
217 		return (C_SYNC);
218 	}
219 	return (C_UNKNOWN);
220 }	/* end of one long */
221 
222 Errorclass
223 cpp(void)
224 {
225 	/*
226 	 *	Now attempt a cpp error message match
227 	 *	Examples:
228 	 *		./morse.h: 23: undefined control
229 	 *		morsesend.c: 229: MAGNIBBL: argument mismatch
230 	 *		morsesend.c: 237: MAGNIBBL: argument mismatch
231 	 *		test1.c: 6: undefined control
232 	 */
233 	if ((language != INLD) &&	/* loader errors have almost same fmt */
234 	    (lastchar(wordv[1]) == ':') &&
235 	    (isdigit(firstchar(wordv[2]))) &&
236 	    (lastchar(wordv[2]) == ':')) {
237 		language = INCPP;
238 		clob_last(wordv[1], '\0');
239 		clob_last(wordv[2], '\0');
240 		return (C_TRUE);
241 	}
242 	return (C_UNKNOWN);
243 }	/*end of cpp*/
244 
245 Errorclass
246 pccccom(void)
247 {
248 	/*
249 	 *	Now attempt a ccom error message match:
250 	 *	Examples:
251 	 *	  "morsesend.c", line 237: operands of & have incompatible types
252 	 *	  "test.c", line 7: warning: old-fashioned initialization: use =
253 	 *	  "subdir.d/foo2.h", line 1: illegal initialization
254 	 */
255 	if ((firstchar(wordv[1]) == '"') &&
256 	    (lastchar(wordv[1]) == ',') &&
257 	    (next_lastchar(wordv[1]) == '"') &&
258 	    (strcmp(wordv[2], "line") == 0) &&
259 	    (isdigit(firstchar(wordv[3]))) &&
260 	    (lastchar(wordv[3]) == ':')) {
261 		clob_last(wordv[1], '\0');	/* drop last , */
262 		clob_last(wordv[1], '\0');	/* drop last " */
263 		wordv[1]++;			/* drop first " */
264 		clob_last(wordv[3], '\0');	/* drop : on line number */
265 		wordv[2] = wordv[1];	/* overwrite "line" */
266 		wordv++;		/* compensate */
267 		wordc--;
268 		currentfilename = wordv[1];
269 		language = INCC;
270 		return (C_TRUE);
271 	}
272 	return (C_UNKNOWN);
273 }	/* end of ccom */
274 
275 /*
276  *	Do the error message from the Richie C Compiler for the PDP11,
277  *	which has this source:
278  *
279  *	if (filename[0])
280  *		fprintf(stderr, "%s:", filename);
281  *	fprintf(stderr, "%d: ", line);
282  *
283  */
284 Errorclass
285 richieccom(void)
286 {
287 	char	*cp;
288 	char	**nwordv;
289 	char	*file;
290 
291 	if (lastchar(wordv[1]) == ':') {
292 		cp = wordv[1] + strlen(wordv[1]) - 1;
293 		while (isdigit(*--cp))
294 			continue;
295 		if (*cp == ':') {
296 			clob_last(wordv[1], '\0');	/* last : */
297 			*cp = '\0';			/* first : */
298 			file = wordv[1];
299 			nwordv = wordvsplice(1, wordc, wordv+1);
300 			nwordv[0] = file;
301 			nwordv[1] = cp + 1;
302 			wordc += 1;
303 			wordv = nwordv - 1;
304 			language = INCC;
305 			currentfilename = wordv[1];
306 			return (C_TRUE);
307 		}
308 	}
309 	return (C_UNKNOWN);
310 }
311 
312 Errorclass
313 lint0(void)
314 {
315 	char	**nwordv;
316 	char	*line, *file;
317 	/*
318 	 *	Attempt a match for the new lint style normal compiler
319 	 *	error messages, of the form
320 	 *
321 	 *	printf("%s(%d): %s\n", filename, linenumber, message);
322 	 */
323 	if (wordc >= 2) {
324 		if ((lastchar(wordv[1]) == ':') &&
325 		    (next_lastchar(wordv[1]) == ')')) {
326 			clob_last(wordv[1], '\0'); /* colon */
327 			if (persperdexplode(wordv[1], &line, &file)) {
328 				nwordv = wordvsplice(1, wordc, wordv+1);
329 				nwordv[0] = file;	/* file name */
330 				nwordv[1] = line;	/* line number */
331 				wordc += 1;
332 				wordv = nwordv - 1;
333 				language = INLINT;
334 				return (C_TRUE);
335 			}
336 			wordv[1][strlen(wordv[1])] = ':';
337 		}
338 	}
339 	return (C_UNKNOWN);
340 }
341 
342 Errorclass
343 lint1(void)
344 {
345 	char	*line1, *line2;
346 	char	*file1, *file2;
347 	char	**nwordv1, **nwordv2;
348 
349 	/*
350 	 *	Now, attempt a match for the various errors that lint
351 	 *	can complain about.
352 	 *
353 	 *	Look first for type 1 lint errors
354 	 */
355 	if (wordc > 1 && strcmp(wordv[wordc-1], "::") == 0) {
356 	/*
357 	 * %.7s, arg. %d used inconsistently %s(%d) :: %s(%d)
358 	 * %.7s value used inconsistently %s(%d) :: %s(%d)
359 	 * %.7s multiply declared %s(%d) :: %s(%d)
360 	 * %.7s value declared inconsistently %s(%d) :: %s(%d)
361 	 * %.7s function value type must be declared before use %s(%d) :: %s(%d)
362 	 */
363 		language = INLINT;
364 		if ((wordc > 2) &&
365 		    (persperdexplode(wordv[wordc], &line2, &file2)) &&
366 		    (persperdexplode(wordv[wordc-2], &line1, &file1))) {
367 			nwordv1 = wordvsplice(2, wordc, wordv+1);
368 			nwordv2 = wordvsplice(2, wordc, wordv+1);
369 			nwordv1[0] = file1; nwordv1[1] = line1;
370 			/* takes 0 based */
371 			erroradd(wordc+2, nwordv1, C_TRUE, C_DUPL);
372 			nwordv2[0] = file2; nwordv2[1] = line2;
373 			wordc = wordc + 2;
374 			wordv = nwordv2 - 1;	/* 1 based */
375 			return (C_TRUE);
376 		}
377 	}
378 	return (C_UNKNOWN);
379 } /* end of lint 1*/
380 
381 Errorclass
382 lint2(void)
383 {
384 	char	*file;
385 	char	*line;
386 	char	**nwordv;
387 	/*
388 	 *	Look for type 2 lint errors
389 	 *
390 	 *	%.7s used( %s(%d) ), but not defined
391 	 *	%.7s defined( %s(%d) ), but never used
392 	 *	%.7s declared( %s(%d) ), but never used or defined
393 	 *
394 	 *	bufp defined( "./metric.h"(10) ), but never used
395 	 */
396 	if ((lastchar(wordv[2]) == '(' /* ')' */) &&
397 	    (strcmp(wordv[4], "),") == 0)) {
398 		language = INLINT;
399 		if (persperdexplode(wordv[3], &line, &file)) {
400 			nwordv = wordvsplice(2, wordc, wordv+1);
401 			nwordv[0] = file; nwordv[1] = line;
402 			wordc = wordc + 2;
403 			wordv = nwordv - 1;	/* 1 based */
404 			return (C_TRUE);
405 		}
406 	}
407 	return (C_UNKNOWN);
408 } /* end of lint 2*/
409 
410 char	*Lint31[4] = {"returns", "value", "which", "is"};
411 char	*Lint32[6] = {"value", "is", "used,", "but", "none", "returned"};
412 
413 Errorclass
414 lint3(void)
415 {
416 	if ((wordvcmp(wordv+2, 4, Lint31) == 0) ||
417 	    (wordvcmp(wordv+2, 6, Lint32) == 0)) {
418 		language = INLINT;
419 		return (C_NONSPEC);
420 	}
421 	return (C_UNKNOWN);
422 }
423 
424 /*
425  *	Special word vectors for use by F77 recognition
426  */
427 char	*F77_fatal[3] = {"Compiler", "error", "line"};
428 char	*F77_error[3] = {"Error", "on", "line"};
429 char	*F77_warning[3] = {"Warning", "on", "line"};
430 char    *F77_no_ass[3] = {"Error.", "No", "assembly."};
431 
432 Errorclass
433 f77(void)
434 {
435 	char	**nwordv;
436 	/*
437 	 *	look for f77 errors:
438 	 *	Error messages from /usr/src/cmd/f77/error.c, with
439 	 *	these printf formats:
440 	 *
441 	 *		Compiler error line %d of %s: %s
442 	 *		Error on line %d of %s: %s
443 	 *		Warning on line %d of %s: %s
444 	 *		Error.  No assembly.
445 	 */
446 	if (wordc == 3 && wordvcmp(wordv+1, 3, F77_no_ass) == 0) {
447 		wordc = 0;
448 		return (C_SYNC);
449 	}
450 	if (wordc < 6)
451 		return (C_UNKNOWN);
452 	if ((lastchar(wordv[6]) == ':') &&
453 	    ((wordvcmp(wordv+1, 3, F77_fatal) == 0) ||
454 	    (wordvcmp(wordv+1, 3, F77_error) == 0) ||
455 	    (wordvcmp(wordv+1, 3, F77_warning) == 0))) {
456 		language = INF77;
457 		nwordv = wordvsplice(2, wordc, wordv+1);
458 		nwordv[0] = wordv[6];
459 		clob_last(nwordv[0], '\0');
460 		nwordv[1] = wordv[4];
461 		wordc += 2;
462 		wordv = nwordv - 1;	/* 1 based */
463 		return (C_TRUE);
464 	}
465 	return (C_UNKNOWN);
466 } /* end of f77 */
467 
468 char	*Make_Croak[3] = {"***", "Error", "code"};
469 char	*Make_NotRemade[5] = {"not", "remade", "because", "of", "errors"};
470 
471 Errorclass
472 make(void)
473 {
474 	if (wordvcmp(wordv+1, 3, Make_Croak) == 0) {
475 		language = INMAKE;
476 		return (C_SYNC);
477 	}
478 	if (wordvcmp(wordv+2, 5, Make_NotRemade) == 0) {
479 		language = INMAKE;
480 		return (C_SYNC);
481 	}
482 	return (C_UNKNOWN);
483 }
484 
485 Errorclass
486 ri(void)
487 {
488 /*
489  *	Match an error message produced by ri; here is the
490  *	procedure yanked from the distributed version of ri
491  *	April 24, 1980.
492  *
493  *	serror(str, x1, x2, x3)
494  *		char str[];
495  *		char *x1, *x2, *x3;
496  *	{
497  *		extern int yylineno;
498  *
499  *		putc('"', stdout);
500  *		fputs(srcfile, stdout);
501  *		putc('"', stdout);
502  *		fprintf(stdout, " %d: ", yylineno);
503  *		fprintf(stdout, str, x1, x2, x3);
504  *		fprintf(stdout, "\n");
505  *		synerrs++;
506  *	}
507  */
508 	if ((firstchar(wordv[1]) == '"') &&
509 	    (lastchar(wordv[1]) == '"') &&
510 	    (lastchar(wordv[2]) == ':') &&
511 	    (isdigit(firstchar(wordv[2])))) {
512 		clob_last(wordv[1], '\0');	/* drop the last " */
513 		wordv[1]++;	/* skip over the first " */
514 		clob_last(wordv[2], '\0');
515 		language = INRI;
516 		return (C_TRUE);
517 	}
518 	return (C_UNKNOWN);
519 }
520 
521 static Errorclass
522 catchall(void)
523 {
524 	/*
525 	 *	Catches random things.
526 	 */
527 	language = INUNKNOWN;
528 	return (C_NONSPEC);
529 }
530 
531 Errorclass
532 troff(void)
533 {
534 	/*
535 	 *	troff source error message, from eqn, bib, tbl...
536 	 *	Just like pcc ccom, except uses `'
537 	 */
538 	if ((firstchar(wordv[1]) == '`') &&
539 	    (lastchar(wordv[1]) == ',') &&
540 	    (next_lastchar(wordv[1]) == '\'') &&
541 	    (strcmp(wordv[2], "line") == 0) &&
542 	    (isdigit(firstchar(wordv[3]))) &&
543 	    (lastchar(wordv[3]) == ':')) {
544 		clob_last(wordv[1], '\0');	/* drop last , */
545 		clob_last(wordv[1], '\0');	/* drop last " */
546 		wordv[1]++;			/* drop first " */
547 		clob_last(wordv[3], '\0');	/* drop : on line number */
548 		wordv[2] = wordv[1];	/* overwrite "line" */
549 		wordv++;		/* compensate */
550 		currentfilename = wordv[1];
551 		language = INTROFF;
552 		return (C_TRUE);
553 	}
554 	return (C_UNKNOWN);
555 }
556 
557 Errorclass
558 mod2(void)
559 {
560 	/*
561 	 *	for decwrl modula2 compiler (powell)
562 	 */
563 	if (((strcmp(wordv[1], "!!!") == 0) ||		/* early version */
564 	    (strcmp(wordv[1], "File") == 0)) &&		/* later version */
565 	    (lastchar(wordv[2]) == ',') &&		/* file name */
566 	    (strcmp(wordv[3], "line") == 0) &&
567 	    (isdigit(firstchar(wordv[4]))) &&	/* line number */
568 	    (lastchar(wordv[4]) == ':')) {	/* line number */
569 		clob_last(wordv[2], '\0');	/* drop last , on file name */
570 		clob_last(wordv[4], '\0');	/* drop last : on line number */
571 		wordv[3] = wordv[2];		/* file name on top of "line" */
572 		wordv += 2;
573 		wordc -= 2;
574 		currentfilename = wordv[1];
575 		language = INMOD2;
576 		return (C_TRUE);
577 	}
578 	return (C_UNKNOWN);
579 }
580 
581 Errorclass
582 sunf77(void)
583 {
584 	/*
585 	 * Finally attempt a Sun f77 error message match:
586 	 * Examples:
587 	 *	"bar.f", line 237: Error: no label on format statement
588 	 *	"test.f", line 7: ANSI extension: Hollerith constant
589 	 *	"dir/foo.h", line 1: Warning: missing END statement
590 	 */
591 	if ((firstchar(wordv[1]) == '"') &&
592 	    (lastchar(wordv[1]) == ',') &&
593 	    (next_lastchar(wordv[1]) == '"') &&
594 	    (strcmp(wordv[2], "line") == 0) &&
595 	    (isdigit(firstchar(wordv[3]))) &&
596 	    (lastchar(wordv[3]) == ':') &&
597 	    ((strcmp(wordv[4], "Error:") == 0) ||
598 	    (strcmp(wordv[4], "Warning:") == 0) ||
599 	    ((strcmp(wordv[4], "ANSI") == 0) &&
600 	    (strcmp(wordv[5], "extension:") == 0)))) {
601 		clob_last(wordv[1], '\0');	/* drop last , */
602 		clob_last(wordv[1], '\0');	/* drop last " */
603 		wordv[1]++;			/* drop first " */
604 		clob_last(wordv[3], '\0');	/* drop : on line number */
605 		wordv[2] = wordv[1];	/* overwrite "line" */
606 		wordv++;		/* compensate */
607 		wordc--;
608 		currentfilename = wordv[1];
609 		language = INSUNF77;
610 		return (C_TRUE);
611 	}
612 	return (C_UNKNOWN);
613 }	/* end of Sun f77 */
614