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616915dd | 1 | /* |
11db3170 | 2 | ** Splint - annotation-assisted static program checker |
c59f5181 | 3 | ** Copyright (C) 1994-2003 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 | ** | |
155af98d | 20 | ** For information on splint: info@splint.org |
21 | ** To report a bug: splint-bug@splint.org | |
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@*/ | |
616915dd | 77 | /*@-onlyunqglobaltrans@*/ |
78 | /*@-macroconstdecl@*/ | |
79 | ||
80 | # include <stdlib.h> | |
81 | # include <errno.h> | |
82 | # include <stdio.h> | |
83 | ||
84 | # define FATAL_EXIT_CODE EXIT_FAILURE | |
85 | ||
1b8ae690 | 86 | # include "splintMacros.nf" |
616915dd | 87 | # include "llbasic.h" |
616915dd | 88 | # include "cpplib.h" |
89 | # include "cpperror.h" | |
90 | ||
80489f0a | 91 | static cstring cppReader_unparseLoc (cppReader *p_pfile); |
92 | ||
616915dd | 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 | ||
80489f0a | 132 | cppBuffer_getLineAndColumn (ip, &line, &col); |
616915dd | 133 | if (ip->fname != NULL) |
134 | { | |
135 | if (first) | |
136 | { | |
137 | first = 0; | |
80489f0a | 138 | fprintf (g_warningstream, " In file included"); |
616915dd | 139 | } |
140 | else | |
80489f0a | 141 | fprintf (g_warningstream, ",\n "); |
616915dd | 142 | } |
143 | ||
80489f0a | 144 | fprintf (g_warningstream, " 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 | { | |
80489f0a | 152 | fprintf (g_warningstream, "\n"); |
616915dd | 153 | } |
154 | ||
155 | /* Record we have printed the status as of this time. */ | |
156 | pfile->input_stack_listing_current = 1; | |
157 | } | |
158 | ||
80489f0a | 159 | static /*@only@*/ cstring |
160 | cppReader_unparseLoc (cppReader *pfile) | |
616915dd | 161 | { |
80489f0a | 162 | DPRINTF (("unparse loc: %s", |
163 | fileloc_unparse (cppReader_getLoc (pfile)))); | |
164 | return (fileloc_unparse (cppReader_getLoc (pfile))); | |
616915dd | 165 | } |
166 | ||
167 | /* IS_ERROR is 2 for "fatal" error, 1 for error, 0 for warning */ | |
168 | ||
169 | static void | |
170 | cppReader_message (cppReader *pfile, int is_error, /*@only@*/ cstring msg) | |
171 | { | |
172 | if (!is_error) | |
173 | { | |
174 | /* fprintf (stderr, "warning: "); */ | |
175 | } | |
176 | else if (is_error == 2) | |
177 | { | |
178 | pfile->errors = cppReader_fatalErrorLimit; | |
179 | } | |
180 | else if (pfile->errors < cppReader_fatalErrorLimit) | |
181 | { | |
182 | pfile->errors++; | |
183 | } | |
184 | else | |
185 | { | |
186 | ; | |
187 | } | |
188 | ||
189 | fprintf (stderr, "%s", cstring_toCharsSafe (msg)); | |
190 | fprintf (stderr, "\n"); | |
191 | } | |
192 | ||
193 | /* Same as cppReader_error, except we consider the error to be "fatal", | |
194 | such as inconsistent options. I.e. there is little point in continuing. | |
195 | (We do not exit, to support use of cpplib as a library. | |
196 | Instead, it is the caller's responsibility to check | |
3e3ec469 | 197 | cpplib_fatalErrors. */ |
616915dd | 198 | |
199 | void | |
200 | cppReader_fatalError (cppReader *pfile, /*@only@*/ cstring str) | |
201 | { | |
202 | fprintf (stderr, "preprocessor: "); | |
203 | cppReader_message (pfile, 2, str); | |
204 | } | |
205 | ||
206 | void | |
207 | cppReader_pfatalWithName (cppReader *pfile, cstring name) | |
208 | { | |
209 | cppReader_perrorWithName (pfile, name); | |
210 | exit (FATAL_EXIT_CODE); | |
211 | } | |
212 | ||
b072092f | 213 | /*@only@*/ fileloc |
214 | cppReader_getLoc (cppReader *pfile) | |
215 | { | |
216 | cppBuffer *ip = cppReader_fileBuffer (pfile); | |
217 | ||
6fcd0b1e | 218 | if (ip != NULL && ip->buf != NULL) |
b072092f | 219 | { |
220 | int line, col; | |
221 | cstring fname = ip->nominal_fname; | |
222 | fileId fid = fileTable_lookup (context_fileTable (), fname); | |
223 | ||
ec579bb3 | 224 | if (!fileId_isValid (fid)) |
225 | { | |
226 | /* evans 2002-02-09 | |
227 | ** filename used in #line comment is new | |
228 | */ | |
229 | ||
230 | fid = fileTable_addFile (context_fileTable (), fname); | |
231 | } | |
232 | ||
80489f0a | 233 | cppBuffer_getLineAndColumn (ip, &line, &col); |
b072092f | 234 | return fileloc_create (fid, line, col); |
235 | } | |
236 | else | |
237 | { | |
238 | return fileloc_createBuiltin (); | |
239 | } | |
240 | } | |
241 | ||
616915dd | 242 | void |
243 | cppReader_errorLit (cppReader *pfile, /*@observer@*/ cstring msg) | |
244 | { | |
245 | cppReader_error (pfile, cstring_copy (msg)); | |
246 | } | |
247 | ||
248 | void | |
249 | cppReader_error (cppReader *pfile, /*@only@*/ cstring msg) | |
250 | { | |
80489f0a | 251 | if (cppoptgenerror (FLG_PREPROC, msg, pfile)) |
252 | { | |
253 | pfile->errors++; | |
254 | } | |
616915dd | 255 | } |
256 | ||
257 | /* Print error message but don't count it. */ | |
258 | ||
259 | void | |
260 | cppReader_warningLit (cppReader *pfile, cstring msg) | |
261 | { | |
262 | cppReader_warning (pfile, cstring_copy (msg)); | |
263 | } | |
264 | ||
265 | void | |
266 | cppReader_warning (cppReader *pfile, /*@only@*/ cstring msg) | |
267 | { | |
616915dd | 268 | if (CPPOPTIONS (pfile)->warnings_are_errors) |
269 | pfile->errors++; | |
80489f0a | 270 | |
271 | cppoptgenerror (FLG_PREPROC, msg, pfile); | |
616915dd | 272 | } |
273 | ||
274 | /* Print an error message and maybe count it. */ | |
275 | ||
276 | extern void | |
277 | cppReader_pedwarnLit (cppReader *pfile, /*@observer@*/ cstring msg) | |
278 | { | |
279 | cppReader_pedwarn (pfile, cstring_copy (msg)); | |
280 | } | |
281 | ||
282 | extern void | |
283 | cppReader_pedwarn (cppReader *pfile, /*@only@*/ cstring msg) | |
284 | { | |
285 | if (CPPOPTIONS (pfile)->pedantic_errors) | |
286 | { | |
287 | cppReader_error (pfile, msg); | |
288 | } | |
289 | else | |
290 | { | |
291 | cppReader_warning (pfile, msg); | |
292 | } | |
293 | } | |
294 | ||
295 | void | |
80489f0a | 296 | cppReader_errorWithLine (cppReader *pfile, int line, int column, |
297 | /*@only@*/ cstring msg) | |
616915dd | 298 | { |
80489f0a | 299 | fileloc loc = cppReader_getLoc (pfile); |
300 | fileloc_setLineno (loc, line); | |
301 | fileloc_setColumn (loc, column); | |
302 | ||
303 | cppoptgenerror (FLG_PREPROC, message ("%s: %s", | |
304 | fileloc_unparse (loc), | |
305 | msg), | |
306 | pfile); | |
616915dd | 307 | } |
308 | ||
309 | void | |
310 | cppReader_warningWithLine (cppReader *pfile, | |
80489f0a | 311 | int line, int column, |
312 | /*@only@*/ cstring msg) | |
616915dd | 313 | { |
616915dd | 314 | if (CPPOPTIONS (pfile)->warnings_are_errors) |
315 | pfile->errors++; | |
316 | ||
80489f0a | 317 | cppReader_errorWithLine (pfile, line, column, msg); |
616915dd | 318 | } |
319 | ||
320 | void | |
321 | cppReader_pedwarnWithLine (cppReader *pfile, int line, int column, | |
322 | /*@only@*/ cstring msg) | |
323 | { | |
324 | if (CPPOPTIONS (pfile)->pedantic_errors) | |
325 | { | |
326 | cppReader_errorWithLine (pfile, column, line, msg); | |
327 | } | |
328 | else | |
329 | { | |
330 | cppReader_warningWithLine (pfile, line, column, msg); | |
331 | } | |
332 | } | |
333 | ||
334 | void cppReader_perrorWithName (cppReader *pfile, cstring name) | |
335 | { | |
80489f0a | 336 | cppoptgenerror (FLG_PREPROC, |
337 | message ("%s: Preprocessing error: %s", | |
338 | name, lldecodeerror (errno)), | |
339 | pfile); | |
616915dd | 340 | } |
341 | ||
342 | ||
343 | ||
344 | ||
345 | ||
346 | ||
347 | ||
348 |