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7f2935c7 | 1 | /* Default error handlers for CPP Library. |
85ec4feb | 2 | Copyright (C) 1986-2018 Free Software Foundation, Inc. |
7f2935c7 | 3 | Written by Per Bothner, 1994. |
38e01259 | 4 | Based on CCCP program by Paul Rubin, June 1986 |
7f2935c7 PB |
5 | Adapted to ANSI C, Richard Stallman, Jan 1987 |
6 | ||
7 | This program is free software; you can redistribute it and/or modify it | |
8 | under the terms of the GNU General Public License as published by the | |
748086b7 | 9 | Free Software Foundation; either version 3, or (at your option) any |
7f2935c7 PB |
10 | later version. |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
748086b7 JJ |
18 | along with this program; see the file COPYING3. If not see |
19 | <http://www.gnu.org/licenses/>. | |
7f2935c7 PB |
20 | |
21 | In other words, you are welcome to use, share and improve this program. | |
22 | You are forbidden to forbid anyone else to use, share and improve | |
23 | what you give them. Help stamp out software-hoarding! */ | |
24 | ||
84ee6fd4 | 25 | #include "config.h" |
b04cd507 | 26 | #include "system.h" |
f32da1f6 | 27 | #include "cpplib.h" |
4f4e53dd | 28 | #include "internal.h" |
f32da1f6 | 29 | |
ac81cf0b DM |
30 | /* Print a diagnostic at the given location. */ |
31 | ||
32 | ATTRIBUTE_FPTR_PRINTF(5,0) | |
33 | static bool | |
34 | cpp_diagnostic_at (cpp_reader * pfile, int level, int reason, | |
64a5912c | 35 | rich_location *richloc, |
ac81cf0b DM |
36 | const char *msgid, va_list *ap) |
37 | { | |
38 | bool ret; | |
39 | ||
40 | if (!pfile->cb.error) | |
41 | abort (); | |
64a5912c | 42 | ret = pfile->cb.error (pfile, level, reason, richloc, _(msgid), ap); |
ac81cf0b DM |
43 | |
44 | return ret; | |
45 | } | |
46 | ||
87cf0651 SB |
47 | /* Print a diagnostic at the location of the previously lexed token. */ |
48 | ||
49 | ATTRIBUTE_FPTR_PRINTF(4,0) | |
50 | static bool | |
51 | cpp_diagnostic (cpp_reader * pfile, int level, int reason, | |
52 | const char *msgid, va_list *ap) | |
c1212d2f | 53 | { |
12f9df4e | 54 | source_location src_loc; |
148e4216 | 55 | |
148e4216 | 56 | if (CPP_OPTION (pfile, traditional)) |
75ee800b | 57 | { |
148e4216 JM |
58 | if (pfile->state.in_directive) |
59 | src_loc = pfile->directive_line; | |
178b58b5 | 60 | else |
148e4216 JM |
61 | src_loc = pfile->line_table->highest_line; |
62 | } | |
63 | /* We don't want to refer to a token before the beginning of the | |
64 | current run -- that is invalid. */ | |
65 | else if (pfile->cur_token == pfile->cur_run->base) | |
66 | { | |
cc811a8a | 67 | src_loc = 0; |
178b58b5 | 68 | } |
148e4216 JM |
69 | else |
70 | { | |
71 | src_loc = pfile->cur_token[-1].src_loc; | |
72 | } | |
64a5912c DM |
73 | rich_location richloc (pfile->line_table, src_loc); |
74 | return cpp_diagnostic_at (pfile, level, reason, &richloc, msgid, ap); | |
87cf0651 SB |
75 | } |
76 | ||
77 | /* Print a warning or error, depending on the value of LEVEL. */ | |
78 | ||
79 | bool | |
80 | cpp_error (cpp_reader * pfile, int level, const char *msgid, ...) | |
81 | { | |
82 | va_list ap; | |
83 | bool ret; | |
84 | ||
85 | va_start (ap, msgid); | |
86 | ||
87 | ret = cpp_diagnostic (pfile, level, CPP_W_NONE, msgid, &ap); | |
b649398a | 88 | |
e34d07f2 | 89 | va_end (ap); |
148e4216 | 90 | return ret; |
c1212d2f ZW |
91 | } |
92 | ||
87cf0651 SB |
93 | /* Print a warning. The warning reason may be given in REASON. */ |
94 | ||
95 | bool | |
96 | cpp_warning (cpp_reader * pfile, int reason, const char *msgid, ...) | |
97 | { | |
98 | va_list ap; | |
99 | bool ret; | |
100 | ||
101 | va_start (ap, msgid); | |
102 | ||
103 | ret = cpp_diagnostic (pfile, CPP_DL_WARNING, reason, msgid, &ap); | |
104 | ||
105 | va_end (ap); | |
106 | return ret; | |
107 | } | |
108 | ||
109 | /* Print a pedantic warning. The warning reason may be given in REASON. */ | |
110 | ||
111 | bool | |
112 | cpp_pedwarning (cpp_reader * pfile, int reason, const char *msgid, ...) | |
113 | { | |
114 | va_list ap; | |
115 | bool ret; | |
116 | ||
117 | va_start (ap, msgid); | |
118 | ||
119 | ret = cpp_diagnostic (pfile, CPP_DL_PEDWARN, reason, msgid, &ap); | |
120 | ||
121 | va_end (ap); | |
122 | return ret; | |
123 | } | |
124 | ||
125 | /* Print a warning, including system headers. The warning reason may be | |
126 | given in REASON. */ | |
127 | ||
128 | bool | |
129 | cpp_warning_syshdr (cpp_reader * pfile, int reason, const char *msgid, ...) | |
130 | { | |
131 | va_list ap; | |
132 | bool ret; | |
133 | ||
134 | va_start (ap, msgid); | |
135 | ||
136 | ret = cpp_diagnostic (pfile, CPP_DL_WARNING_SYSHDR, reason, msgid, &ap); | |
137 | ||
138 | va_end (ap); | |
139 | return ret; | |
140 | } | |
141 | ||
142 | /* Print a diagnostic at a specific location. */ | |
143 | ||
144 | ATTRIBUTE_FPTR_PRINTF(6,0) | |
145 | static bool | |
146 | cpp_diagnostic_with_line (cpp_reader * pfile, int level, int reason, | |
147 | source_location src_loc, unsigned int column, | |
148 | const char *msgid, va_list *ap) | |
149 | { | |
150 | bool ret; | |
151 | ||
152 | if (!pfile->cb.error) | |
153 | abort (); | |
ebedc9a3 | 154 | rich_location richloc (pfile->line_table, src_loc); |
44714d8c DM |
155 | if (column) |
156 | richloc.override_column (column); | |
8a645150 | 157 | ret = pfile->cb.error (pfile, level, reason, &richloc, _(msgid), ap); |
87cf0651 SB |
158 | |
159 | return ret; | |
160 | } | |
161 | ||
162 | /* Print a warning or error, depending on the value of LEVEL. */ | |
163 | ||
148e4216 | 164 | bool |
e34d07f2 | 165 | cpp_error_with_line (cpp_reader *pfile, int level, |
12f9df4e | 166 | source_location src_loc, unsigned int column, |
e34d07f2 | 167 | const char *msgid, ...) |
c1212d2f | 168 | { |
e34d07f2 | 169 | va_list ap; |
148e4216 | 170 | bool ret; |
87cf0651 | 171 | |
e34d07f2 | 172 | va_start (ap, msgid); |
ab87f8c8 | 173 | |
87cf0651 SB |
174 | ret = cpp_diagnostic_with_line (pfile, level, CPP_W_NONE, src_loc, |
175 | column, msgid, &ap); | |
176 | ||
177 | va_end (ap); | |
178 | return ret; | |
179 | } | |
180 | ||
181 | /* Print a warning. The warning reason may be given in REASON. */ | |
182 | ||
183 | bool | |
184 | cpp_warning_with_line (cpp_reader *pfile, int reason, | |
185 | source_location src_loc, unsigned int column, | |
186 | const char *msgid, ...) | |
187 | { | |
188 | va_list ap; | |
189 | bool ret; | |
190 | ||
191 | va_start (ap, msgid); | |
192 | ||
193 | ret = cpp_diagnostic_with_line (pfile, CPP_DL_WARNING, reason, src_loc, | |
194 | column, msgid, &ap); | |
195 | ||
196 | va_end (ap); | |
197 | return ret; | |
198 | } | |
199 | ||
200 | /* Print a pedantic warning. The warning reason may be given in REASON. */ | |
201 | ||
202 | bool | |
203 | cpp_pedwarning_with_line (cpp_reader *pfile, int reason, | |
204 | source_location src_loc, unsigned int column, | |
205 | const char *msgid, ...) | |
206 | { | |
207 | va_list ap; | |
208 | bool ret; | |
209 | ||
210 | va_start (ap, msgid); | |
211 | ||
212 | ret = cpp_diagnostic_with_line (pfile, CPP_DL_PEDWARN, reason, src_loc, | |
213 | column, msgid, &ap); | |
b649398a | 214 | |
e34d07f2 | 215 | va_end (ap); |
148e4216 | 216 | return ret; |
c1212d2f ZW |
217 | } |
218 | ||
87cf0651 SB |
219 | /* Print a warning, including system headers. The warning reason may be |
220 | given in REASON. */ | |
221 | ||
222 | bool | |
223 | cpp_warning_with_line_syshdr (cpp_reader *pfile, int reason, | |
224 | source_location src_loc, unsigned int column, | |
225 | const char *msgid, ...) | |
226 | { | |
227 | va_list ap; | |
228 | bool ret; | |
229 | ||
230 | va_start (ap, msgid); | |
231 | ||
232 | ret = cpp_diagnostic_with_line (pfile, CPP_DL_WARNING_SYSHDR, reason, src_loc, | |
233 | column, msgid, &ap); | |
234 | ||
235 | va_end (ap); | |
236 | return ret; | |
237 | } | |
238 | ||
ac81cf0b DM |
239 | /* As cpp_error, but use SRC_LOC as the location of the error, without |
240 | a column override. */ | |
241 | ||
242 | bool | |
243 | cpp_error_at (cpp_reader * pfile, int level, source_location src_loc, | |
244 | const char *msgid, ...) | |
245 | { | |
246 | va_list ap; | |
247 | bool ret; | |
248 | ||
249 | va_start (ap, msgid); | |
250 | ||
64a5912c DM |
251 | rich_location richloc (pfile->line_table, src_loc); |
252 | ret = cpp_diagnostic_at (pfile, level, CPP_W_NONE, &richloc, | |
ac81cf0b DM |
253 | msgid, &ap); |
254 | ||
255 | va_end (ap); | |
256 | return ret; | |
257 | } | |
258 | ||
cb18fd07 DM |
259 | /* As cpp_error, but use RICHLOC as the location of the error, without |
260 | a column override. */ | |
261 | ||
262 | bool | |
64a5912c DM |
263 | cpp_error_at (cpp_reader * pfile, int level, rich_location *richloc, |
264 | const char *msgid, ...) | |
cb18fd07 DM |
265 | { |
266 | va_list ap; | |
267 | bool ret; | |
268 | ||
269 | va_start (ap, msgid); | |
270 | ||
64a5912c DM |
271 | ret = cpp_diagnostic_at (pfile, level, CPP_W_NONE, richloc, |
272 | msgid, &ap); | |
cb18fd07 DM |
273 | |
274 | va_end (ap); | |
275 | return ret; | |
276 | } | |
277 | ||
87cf0651 SB |
278 | /* Print a warning or error, depending on the value of LEVEL. Include |
279 | information from errno. */ | |
280 | ||
148e4216 | 281 | bool |
6cf87ca4 | 282 | cpp_errno (cpp_reader *pfile, int level, const char *msgid) |
c1212d2f | 283 | { |
46ce03de JJ |
284 | return cpp_error (pfile, level, "%s: %s", _(msgid), xstrerror (errno)); |
285 | } | |
286 | ||
287 | /* Print a warning or error, depending on the value of LEVEL. Include | |
288 | information from errno. Unlike cpp_errno, the argument is a filename | |
289 | that is not localized, but "" is replaced with localized "stdout". */ | |
290 | ||
291 | bool | |
ac81cf0b DM |
292 | cpp_errno_filename (cpp_reader *pfile, int level, const char *filename, |
293 | source_location loc) | |
46ce03de JJ |
294 | { |
295 | if (filename[0] == '\0') | |
296 | filename = _("stdout"); | |
ebef4e8c | 297 | |
ac81cf0b DM |
298 | return cpp_error_at (pfile, level, loc, "%s: %s", filename, |
299 | xstrerror (errno)); | |
c1212d2f | 300 | } |