2 ** Splint - annotation-assisted static program checker
3 ** Copyright (C) 1994-2003 University of Virginia,
4 ** Massachusetts Institute of Technology
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.
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.
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.
20 ** For information on splint: info@splint.org
21 ** To report a bug: splint-bug@splint.org
22 ** For more information: http://www.splint.org
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
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
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.
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.
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! */
58 /*@-loopswitchbreak@*/
59 /*@-switchloopbreak@*/
76 /*@+matchanyintegral@*/
77 /*@-onlyunqglobaltrans@*/
84 # define FATAL_EXIT_CODE EXIT_FAILURE
86 # include "splintMacros.nf"
89 # include "cpperror.h"
91 static cstring cppReader_unparseLoc (cppReader *p_pfile);
93 static void cppReader_warningWithLine (cppReader *p_pfile,
94 int p_line, int p_column,
95 /*@only@*/ cstring p_msg);
97 /* Print the file names and line numbers of the #include
98 commands which led to the current file. */
100 void cppReader_printContainingFiles (cppReader *pfile)
106 /* Error processing command line. */
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)
117 ip = cppReader_fileBuffer (pfile);
119 /* Give up if we don't find a source file. */
125 /* Find the other, outer source files. */
126 while ((ip = cppBuffer_prevBuffer (ip)),
127 ip != cppReader_nullBuffer (pfile))
132 cppBuffer_getLineAndColumn (ip, &line, &col);
133 if (ip->fname != NULL)
138 fprintf (g_warningstream, " In file included");
141 fprintf (g_warningstream, ",\n ");
144 fprintf (g_warningstream, " from %s",
145 cstring_toCharsSafe (temps = fileloc_unparseRaw (ip->nominal_fname, line)));
147 cstring_free (temps);
152 fprintf (g_warningstream, "\n");
155 /* Record we have printed the status as of this time. */
156 pfile->input_stack_listing_current = 1;
159 static /*@only@*/ cstring
160 cppReader_unparseLoc (cppReader *pfile)
162 DPRINTF (("unparse loc: %s",
163 fileloc_unparse (cppReader_getLoc (pfile))));
164 return (fileloc_unparse (cppReader_getLoc (pfile)));
167 /* IS_ERROR is 2 for "fatal" error, 1 for error, 0 for warning */
170 cppReader_message (cppReader *pfile, int is_error, /*@only@*/ cstring msg)
174 /* fprintf (stderr, "warning: "); */
176 else if (is_error == 2)
178 pfile->errors = cppReader_fatalErrorLimit;
180 else if (pfile->errors < cppReader_fatalErrorLimit)
189 fprintf (stderr, "%s", cstring_toCharsSafe (msg));
190 fprintf (stderr, "\n");
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
197 cpplib_fatalErrors. */
200 cppReader_fatalError (cppReader *pfile, /*@only@*/ cstring str)
202 fprintf (stderr, "preprocessor: ");
203 cppReader_message (pfile, 2, str);
207 cppReader_pfatalWithName (cppReader *pfile, cstring name)
209 cppReader_perrorWithName (pfile, name);
210 exit (FATAL_EXIT_CODE);
214 cppReader_getLoc (cppReader *pfile)
216 cppBuffer *ip = cppReader_fileBuffer (pfile);
218 if (ip != NULL && ip->buf != NULL)
221 cstring fname = ip->nominal_fname;
222 fileId fid = fileTable_lookup (context_fileTable (), fname);
224 if (!fileId_isValid (fid))
227 ** filename used in #line comment is new
230 fid = fileTable_addFile (context_fileTable (), fname);
233 cppBuffer_getLineAndColumn (ip, &line, &col);
234 return fileloc_create (fid, line, col);
238 return fileloc_createBuiltin ();
243 cppReader_errorLit (cppReader *pfile, /*@observer@*/ cstring msg)
245 cppReader_error (pfile, cstring_copy (msg));
249 cppReader_error (cppReader *pfile, /*@only@*/ cstring msg)
251 if (cppoptgenerror (FLG_PREPROC, msg, pfile))
257 /* Print error message but don't count it. */
260 cppReader_warningLit (cppReader *pfile, cstring msg)
262 cppReader_warning (pfile, cstring_copy (msg));
266 cppReader_warning (cppReader *pfile, /*@only@*/ cstring msg)
268 if (CPPOPTIONS (pfile)->warnings_are_errors)
271 cppoptgenerror (FLG_PREPROC, msg, pfile);
274 /* Print an error message and maybe count it. */
277 cppReader_pedwarnLit (cppReader *pfile, /*@observer@*/ cstring msg)
279 cppReader_pedwarn (pfile, cstring_copy (msg));
283 cppReader_pedwarn (cppReader *pfile, /*@only@*/ cstring msg)
285 if (CPPOPTIONS (pfile)->pedantic_errors)
287 cppReader_error (pfile, msg);
291 cppReader_warning (pfile, msg);
296 cppReader_errorWithLine (cppReader *pfile, int line, int column,
297 /*@only@*/ cstring msg)
299 fileloc loc = cppReader_getLoc (pfile);
300 fileloc_setLineno (loc, line);
301 fileloc_setColumn (loc, column);
303 cppoptgenerror (FLG_PREPROC, message ("%s: %s",
304 fileloc_unparse (loc),
310 cppReader_warningWithLine (cppReader *pfile,
311 int line, int column,
312 /*@only@*/ cstring msg)
314 if (CPPOPTIONS (pfile)->warnings_are_errors)
317 cppReader_errorWithLine (pfile, line, column, msg);
321 cppReader_pedwarnWithLine (cppReader *pfile, int line, int column,
322 /*@only@*/ cstring msg)
324 if (CPPOPTIONS (pfile)->pedantic_errors)
326 cppReader_errorWithLine (pfile, column, line, msg);
330 cppReader_warningWithLine (pfile, line, column, msg);
334 void cppReader_perrorWithName (cppReader *pfile, cstring name)
336 cppoptgenerror (FLG_PREPROC,
337 message ("%s: Preprocessing error: %s",
338 name, lldecodeerror (errno)),