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616915dd | 1 | /* |
11db3170 | 2 | ** Splint - annotation-assisted static program checker |
77d37419 | 3 | ** Copyright (C) 1994-2002 University of Virginia, |
616915dd | 4 | ** Massachusetts Institute of Technology |
5 | ** | |
6 | ** This program is free software; you can redistribute it and/or modify it | |
7 | ** under the terms of the GNU General Public License as published by the | |
8 | ** Free Software Foundation; either version 2 of the License, or (at your | |
9 | ** option) any later version. | |
10 | ** | |
11 | ** This program is distributed in the hope that it will be useful, but | |
12 | ** WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | ** General Public License for more details. | |
15 | ** | |
16 | ** The GNU General Public License is available from http://www.gnu.org/ or | |
17 | ** the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, | |
18 | ** MA 02111-1307, USA. | |
19 | ** | |
20 | ** For information on lclint: lclint-request@cs.virginia.edu | |
21 | ** To report a bug: lclint-bug@cs.virginia.edu | |
11db3170 | 22 | ** For more information: http://www.splint.org |
616915dd | 23 | */ |
24 | /* | |
25 | ** cpperror.c | |
26 | */ | |
27 | /* Default error handlers for CPP Library. | |
28 | Copyright (C) 1986, 87, 89, 92, 93, 94, 1995 Free Software Foundation, Inc. | |
29 | Written by Per Bothner, 1994. | |
30 | Based on CCCP program by by Paul Rubin, June 1986 | |
31 | Adapted to ANSI C, Richard Stallman, Jan 1987 | |
32 | ||
33 | This program is free software; you can redistribute it and/or modify it | |
34 | under the terms of the GNU General Public License as published by the | |
35 | Free Software Foundation; either version 2, or (at your option) any | |
36 | later version. | |
37 | ||
38 | This program is distributed in the hope that it will be useful, | |
39 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
40 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
41 | GNU General Public License for more details. | |
42 | ||
43 | You should have received a copy of the GNU General Public License | |
44 | along with this program; if not, write to the Free Software | |
45 | Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
46 | ||
47 | In other words, you are welcome to use, share and improve this program. | |
48 | You are forbidden to forbid anyone else to use, share and improve | |
49 | what you give them. Help stamp out software-hoarding! */ | |
50 | ||
51 | /*@-macroconstdecl@*/ | |
52 | /*@-macrofcndecl@*/ | |
53 | /*@-evalorderuncon@*/ | |
54 | /*@+ptrnegate@*/ | |
55 | /*@-memchecks@*/ | |
56 | /*@+charintliteral@*/ | |
57 | /*@-infloopsuncon@*/ | |
58 | /*@-loopswitchbreak@*/ | |
59 | /*@-switchloopbreak@*/ | |
60 | /*@-whileblock@*/ | |
61 | /*@-forblock@*/ | |
62 | /*@-elseifcomplete@*/ | |
63 | /*@-abstract@*/ | |
64 | /*@-usedef@*/ | |
65 | /*@-retvalint@*/ | |
66 | /*@-macroparams@*/ | |
67 | /*@-readonlytrans@*/ | |
68 | /*@-boolops@*/ | |
69 | /*@-sizeoftype@*/ | |
70 | /*@-predboolint@*/ | |
71 | /*@-predboolptr@*/ | |
72 | /*@+boolint@*/ | |
73 | /*@+charint@*/ | |
74 | /*@+ignorequals@*/ | |
75 | /*@+ignoresigns@*/ | |
76 | /*@+matchanyintegral@*/ | |
77 | /*@-shiftsigned@*/ | |
78 | /*@-onlyunqglobaltrans@*/ | |
79 | /*@-macroconstdecl@*/ | |
80 | ||
81 | # include <stdlib.h> | |
82 | # include <errno.h> | |
83 | # include <stdio.h> | |
84 | ||
85 | # define FATAL_EXIT_CODE EXIT_FAILURE | |
86 | ||
87 | # include "lclintMacros.nf" | |
88 | # include "llbasic.h" | |
616915dd | 89 | # include "cpplib.h" |
90 | # include "cpperror.h" | |
91 | ||
92 | static void cppReader_printFileAndLine (cppReader *p_pfile); | |
93 | static void cppReader_warningWithLine (cppReader *p_pfile, | |
94 | int p_line, int p_column, | |
95 | /*@only@*/ cstring p_msg); | |
96 | ||
97 | /* Print the file names and line numbers of the #include | |
98 | commands which led to the current file. */ | |
99 | ||
b072092f | 100 | void cppReader_printContainingFiles (cppReader *pfile) |
616915dd | 101 | { |
102 | cppBuffer *ip; | |
103 | int first = 1; | |
104 | ||
105 | if (pfile == NULL) { | |
106 | /* Error processing command line. */ | |
107 | return; | |
108 | } | |
109 | ||
110 | /* If stack of files hasn't changed since we last printed | |
111 | this info, don't repeat it. */ | |
112 | if (pfile->input_stack_listing_current) | |
113 | { | |
114 | return; | |
115 | } | |
116 | ||
117 | ip = cppReader_fileBuffer (pfile); | |
118 | ||
119 | /* Give up if we don't find a source file. */ | |
120 | if (ip == NULL) | |
121 | { | |
122 | return; | |
123 | } | |
124 | ||
125 | /* Find the other, outer source files. */ | |
126 | while ((ip = cppBuffer_prevBuffer (ip)), | |
127 | ip != cppReader_nullBuffer (pfile)) | |
128 | { | |
129 | int line, col; | |
130 | cstring temps; | |
131 | ||
132 | cppBuffer_lineAndColumn (ip, &line, &col); | |
133 | if (ip->fname != NULL) | |
134 | { | |
135 | if (first) | |
136 | { | |
137 | first = 0; | |
b072092f | 138 | fprintf (g_msgstream, " In file included"); |
616915dd | 139 | } |
140 | else | |
b072092f | 141 | fprintf (g_msgstream, ",\n "); |
616915dd | 142 | } |
143 | ||
b072092f | 144 | fprintf (g_msgstream, " from %s", |
616915dd | 145 | cstring_toCharsSafe (temps = fileloc_unparseRaw (ip->nominal_fname, line))); |
b072092f | 146 | |
616915dd | 147 | cstring_free (temps); |
148 | } | |
149 | ||
150 | if (!first) | |
151 | { | |
b072092f | 152 | fprintf (g_msgstream, "\n"); |
616915dd | 153 | } |
154 | ||
155 | /* Record we have printed the status as of this time. */ | |
156 | pfile->input_stack_listing_current = 1; | |
157 | } | |
158 | ||
159 | static void | |
160 | cppReader_fileLineForMessage (cstring filename, long line, long column) | |
161 | { | |
162 | if (column > 0) | |
163 | { | |
164 | cstring temps; | |
165 | ||
166 | if (filename != NULL) | |
167 | { | |
168 | fprintf (stderr, "%s: ", | |
169 | cstring_toCharsSafe (temps = fileloc_unparseRawCol (filename, (int) line, (int) column))); | |
170 | } | |
171 | else | |
172 | { | |
173 | fprintf (stderr, "%s: ", | |
174 | cstring_toCharsSafe (temps = fileloc_unparseRawCol (cstring_makeLiteralTemp ("<no file>"), | |
175 | (int) line, (int) column))); | |
176 | } | |
177 | ||
178 | cstring_free (temps); | |
179 | } | |
180 | else | |
181 | { | |
182 | cstring temps; | |
183 | ||
184 | if (filename != NULL) | |
185 | { | |
186 | fprintf (stderr, "%s: ", | |
187 | cstring_toCharsSafe (temps = fileloc_unparseRaw (filename, (int) line))); | |
188 | ||
189 | } | |
190 | else | |
191 | { | |
192 | fprintf (stderr, "%s: ", | |
193 | cstring_toCharsSafe (temps = fileloc_unparseRaw (cstring_makeLiteralTemp ("<no file>"), | |
194 | (int) line))); | |
195 | } | |
196 | ||
197 | cstring_free (temps); | |
198 | } | |
199 | } | |
200 | ||
201 | /* IS_ERROR is 2 for "fatal" error, 1 for error, 0 for warning */ | |
202 | ||
203 | static void | |
204 | cppReader_message (cppReader *pfile, int is_error, /*@only@*/ cstring msg) | |
205 | { | |
206 | if (!is_error) | |
207 | { | |
208 | /* fprintf (stderr, "warning: "); */ | |
209 | } | |
210 | else if (is_error == 2) | |
211 | { | |
212 | pfile->errors = cppReader_fatalErrorLimit; | |
213 | } | |
214 | else if (pfile->errors < cppReader_fatalErrorLimit) | |
215 | { | |
216 | pfile->errors++; | |
217 | } | |
218 | else | |
219 | { | |
220 | ; | |
221 | } | |
222 | ||
223 | fprintf (stderr, "%s", cstring_toCharsSafe (msg)); | |
224 | fprintf (stderr, "\n"); | |
225 | } | |
226 | ||
227 | /* Same as cppReader_error, except we consider the error to be "fatal", | |
228 | such as inconsistent options. I.e. there is little point in continuing. | |
229 | (We do not exit, to support use of cpplib as a library. | |
230 | Instead, it is the caller's responsibility to check | |
231 | cppFatalErrors. */ | |
232 | ||
233 | void | |
234 | cppReader_fatalError (cppReader *pfile, /*@only@*/ cstring str) | |
235 | { | |
236 | fprintf (stderr, "preprocessor: "); | |
237 | cppReader_message (pfile, 2, str); | |
238 | } | |
239 | ||
240 | void | |
241 | cppReader_pfatalWithName (cppReader *pfile, cstring name) | |
242 | { | |
243 | cppReader_perrorWithName (pfile, name); | |
244 | exit (FATAL_EXIT_CODE); | |
245 | } | |
246 | ||
b072092f | 247 | /*@only@*/ fileloc |
248 | cppReader_getLoc (cppReader *pfile) | |
249 | { | |
250 | cppBuffer *ip = cppReader_fileBuffer (pfile); | |
251 | ||
252 | if (ip != NULL) | |
253 | { | |
254 | int line, col; | |
255 | cstring fname = ip->nominal_fname; | |
256 | fileId fid = fileTable_lookup (context_fileTable (), fname); | |
257 | ||
258 | llassert (fileId_isValid (fid)); | |
259 | ||
260 | cppBuffer_lineAndColumn (ip, &line, &col); | |
261 | ||
262 | return fileloc_create (fid, line, col); | |
263 | } | |
264 | else | |
265 | { | |
266 | return fileloc_createBuiltin (); | |
267 | } | |
268 | } | |
269 | ||
616915dd | 270 | void |
271 | cppReader_printFileAndLine (cppReader *pfile) | |
272 | { | |
273 | cppBuffer *ip = cppReader_fileBuffer (pfile); | |
274 | ||
275 | if (ip != NULL) | |
276 | { | |
277 | int line, col; | |
278 | ||
279 | cppBuffer_lineAndColumn (ip, &line, &col); | |
280 | cppReader_fileLineForMessage (ip->nominal_fname, | |
281 | line, pfile->show_column ? col : -1); | |
282 | } | |
283 | else | |
284 | { | |
285 | fprintf (stderr, "Command Line: "); | |
286 | } | |
287 | } | |
288 | ||
289 | void | |
290 | cppReader_errorLit (cppReader *pfile, /*@observer@*/ cstring msg) | |
291 | { | |
292 | cppReader_error (pfile, cstring_copy (msg)); | |
293 | } | |
294 | ||
295 | void | |
296 | cppReader_error (cppReader *pfile, /*@only@*/ cstring msg) | |
297 | { | |
298 | prepareMessage (); | |
299 | cppReader_printContainingFiles (pfile); | |
300 | cppReader_printFileAndLine (pfile); | |
301 | cppReader_message (pfile, 1, msg); | |
302 | closeMessage (); | |
303 | } | |
304 | ||
305 | /* Print error message but don't count it. */ | |
306 | ||
307 | void | |
308 | cppReader_warningLit (cppReader *pfile, cstring msg) | |
309 | { | |
310 | cppReader_warning (pfile, cstring_copy (msg)); | |
311 | } | |
312 | ||
313 | void | |
314 | cppReader_warning (cppReader *pfile, /*@only@*/ cstring msg) | |
315 | { | |
616915dd | 316 | if (CPPOPTIONS (pfile)->warnings_are_errors) |
317 | pfile->errors++; | |
b072092f | 318 | |
616915dd | 319 | prepareMessage (); |
320 | cppReader_printContainingFiles (pfile); | |
321 | cppReader_printFileAndLine (pfile); | |
322 | cppReader_message (pfile, 0, msg); | |
323 | closeMessage (); | |
324 | } | |
325 | ||
326 | /* Print an error message and maybe count it. */ | |
327 | ||
328 | extern void | |
329 | cppReader_pedwarnLit (cppReader *pfile, /*@observer@*/ cstring msg) | |
330 | { | |
331 | cppReader_pedwarn (pfile, cstring_copy (msg)); | |
332 | } | |
333 | ||
334 | extern void | |
335 | cppReader_pedwarn (cppReader *pfile, /*@only@*/ cstring msg) | |
336 | { | |
337 | if (CPPOPTIONS (pfile)->pedantic_errors) | |
338 | { | |
339 | cppReader_error (pfile, msg); | |
340 | } | |
341 | else | |
342 | { | |
343 | cppReader_warning (pfile, msg); | |
344 | } | |
345 | } | |
346 | ||
347 | void | |
348 | cppReader_errorWithLine (cppReader *pfile, long line, long column, | |
349 | /*@only@*/ cstring msg) | |
350 | { | |
351 | cppBuffer *ip = cppReader_fileBuffer (pfile); | |
352 | ||
353 | prepareMessage (); | |
354 | cppReader_printContainingFiles (pfile); | |
355 | ||
356 | if (ip != NULL) | |
357 | cppReader_fileLineForMessage (ip->nominal_fname, line, column); | |
358 | ||
359 | cppReader_message (pfile, 1, msg); | |
360 | closeMessage (); | |
361 | } | |
362 | ||
363 | void | |
364 | cppReader_warningWithLine (cppReader *pfile, | |
365 | int line, int column, | |
366 | /*@only@*/ cstring msg) | |
367 | { | |
368 | cppBuffer *ip; | |
369 | ||
616915dd | 370 | if (CPPOPTIONS (pfile)->warnings_are_errors) |
371 | pfile->errors++; | |
372 | ||
373 | prepareMessage (); | |
374 | ||
375 | cppReader_printContainingFiles (pfile); | |
376 | ||
377 | ip = cppReader_fileBuffer (pfile); | |
378 | ||
379 | if (ip != NULL) | |
380 | { | |
381 | cppReader_fileLineForMessage (ip->nominal_fname, line, column); | |
382 | } | |
383 | ||
384 | cppReader_message (pfile, 0, msg); | |
385 | closeMessage (); | |
386 | } | |
387 | ||
388 | void | |
389 | cppReader_pedwarnWithLine (cppReader *pfile, int line, int column, | |
390 | /*@only@*/ cstring msg) | |
391 | { | |
392 | if (CPPOPTIONS (pfile)->pedantic_errors) | |
393 | { | |
394 | cppReader_errorWithLine (pfile, column, line, msg); | |
395 | } | |
396 | else | |
397 | { | |
398 | cppReader_warningWithLine (pfile, line, column, msg); | |
399 | } | |
400 | } | |
401 | ||
402 | void cppReader_perrorWithName (cppReader *pfile, cstring name) | |
403 | { | |
404 | cppReader_message (pfile, 1, | |
28bf4b0b | 405 | message ("Preprocessing error for %s: %s", |
616915dd | 406 | name, lldecodeerror (errno))); |
407 | } | |
408 | ||
409 | ||
410 | ||
411 | ||
412 | ||
413 | ||
414 | ||
415 |