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47b69537 | 1 | /* Language-independent diagnostic subroutines for the GNU Compiler Collection |
23a5b65a | 2 | Copyright (C) 1999-2014 Free Software Foundation, Inc. |
406a65d0 | 3 | Contributed by Gabriel Dos Reis <gdr@codesourcery.com> |
6ed551b4 | 4 | |
1322177d | 5 | This file is part of GCC. |
6ed551b4 | 6 | |
1322177d LB |
7 | GCC is free software; you can redistribute it and/or modify it under |
8 | the terms of the GNU General Public License as published by the Free | |
9dcd6f09 | 9 | Software Foundation; either version 3, or (at your option) any later |
1322177d | 10 | version. |
6ed551b4 | 11 | |
1322177d LB |
12 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
13 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
15 | for more details. | |
6ed551b4 GDR |
16 | |
17 | You should have received a copy of the GNU General Public License | |
9dcd6f09 NC |
18 | along with GCC; see the file COPYING3. If not see |
19 | <http://www.gnu.org/licenses/>. */ | |
6ed551b4 GDR |
20 | |
21 | ||
4eb00163 | 22 | /* This file implements the language independent aspect of diagnostic |
6ed551b4 GDR |
23 | message module. */ |
24 | ||
25 | #include "config.h" | |
6ed551b4 | 26 | #include "system.h" |
4977bab6 | 27 | #include "coretypes.h" |
a757585a | 28 | #include "version.h" |
d83697f4 | 29 | #include "demangle.h" |
6ed551b4 | 30 | #include "input.h" |
6ed551b4 | 31 | #include "intl.h" |
d83697f4 | 32 | #include "backtrace.h" |
345ed1fe | 33 | #include "diagnostic.h" |
4b84d650 | 34 | #include "diagnostic-color.h" |
6ed551b4 | 35 | |
da6ca2b5 GDR |
36 | #include <new> // For placement new. |
37 | ||
243fbddd JM |
38 | #define pedantic_warning_kind(DC) \ |
39 | ((DC)->pedantic_errors ? DK_ERROR : DK_WARNING) | |
40 | #define permissive_error_kind(DC) ((DC)->permissive ? DK_WARNING : DK_ERROR) | |
5f0f4a3b | 41 | #define permissive_error_option(DC) ((DC)->opt_permissive) |
c707a408 | 42 | |
30f7a378 | 43 | /* Prototypes. */ |
b6fe0bb8 | 44 | static char *build_message_string (const char *, ...) ATTRIBUTE_PRINTF_1; |
79a490a9 | 45 | |
79a490a9 | 46 | static void error_recursion (diagnostic_context *) ATTRIBUTE_NORETURN; |
52249a2e | 47 | |
79a490a9 AJ |
48 | static void diagnostic_action_after_output (diagnostic_context *, |
49 | diagnostic_info *); | |
50 | static void real_abort (void) ATTRIBUTE_NORETURN; | |
fbfc1192 | 51 | |
1da2ed5f JM |
52 | /* Name of program invoked, sans directories. */ |
53 | ||
54 | const char *progname; | |
55 | ||
f68fc4db GDR |
56 | /* A diagnostic_context surrogate for stderr. */ |
57 | static diagnostic_context global_diagnostic_context; | |
58 | diagnostic_context *global_dc = &global_diagnostic_context; | |
6ed551b4 | 59 | \f |
59650e48 ZW |
60 | /* Return a malloc'd string containing MSG formatted a la printf. The |
61 | caller is responsible for freeing the memory. */ | |
36244024 | 62 | static char * |
e34d07f2 | 63 | build_message_string (const char *msg, ...) |
b903d81e | 64 | { |
36244024 | 65 | char *str; |
e34d07f2 | 66 | va_list ap; |
b903d81e | 67 | |
e34d07f2 | 68 | va_start (ap, msg); |
59650e48 | 69 | vasprintf (&str, msg, ap); |
e34d07f2 | 70 | va_end (ap); |
b903d81e GDR |
71 | |
72 | return str; | |
73 | } | |
74 | ||
95bd1dd7 | 75 | /* Same as diagnostic_build_prefix, but only the source FILE is given. */ |
24805e80 | 76 | char * |
e78e8a0b | 77 | file_name_as_prefix (diagnostic_context *context, const char *f) |
24805e80 | 78 | { |
e78e8a0b JJ |
79 | const char *locus_cs |
80 | = colorize_start (pp_show_color (context->printer), "locus"); | |
81 | const char *locus_ce = colorize_stop (pp_show_color (context->printer)); | |
82 | return build_message_string ("%s%s:%s ", locus_cs, f, locus_ce); | |
24805e80 GDR |
83 | } |
84 | ||
47b69537 | 85 | |
6ed551b4 | 86 | \f |
9fec0042 MLI |
87 | /* Return the value of the getenv("COLUMNS") as an integer. If the |
88 | value is not set to a positive integer, then return INT_MAX. */ | |
89 | static int | |
90 | getenv_columns (void) | |
91 | { | |
92 | const char * s = getenv ("COLUMNS"); | |
93 | if (s != NULL) { | |
94 | int n = atoi (s); | |
95 | if (n > 0) | |
96 | return n; | |
97 | } | |
98 | return INT_MAX; | |
99 | } | |
100 | ||
101 | /* Set caret_max_width to value. */ | |
102 | void | |
103 | diagnostic_set_caret_max_width (diagnostic_context *context, int value) | |
104 | { | |
105 | /* One minus to account for the leading empty space. */ | |
106 | value = value ? value - 1 | |
025311c4 | 107 | : (isatty (fileno (pp_buffer (context->printer)->stream)) |
9fec0042 MLI |
108 | ? getenv_columns () - 1: INT_MAX); |
109 | ||
110 | if (value <= 0) | |
111 | value = INT_MAX; | |
112 | ||
113 | context->caret_max_width = value; | |
114 | } | |
115 | ||
47b69537 GDR |
116 | /* Initialize the diagnostic message outputting machinery. */ |
117 | void | |
5f0f4a3b | 118 | diagnostic_initialize (diagnostic_context *context, int n_opts) |
47b69537 | 119 | { |
5f0f4a3b JM |
120 | int i; |
121 | ||
b6fe0bb8 GDR |
122 | /* Allocate a basic pretty-printer. Clients will replace this a |
123 | much more elaborated pretty-printer if they wish. */ | |
5ed6ace5 | 124 | context->printer = XNEW (pretty_printer); |
da6ca2b5 | 125 | new (context->printer) pretty_printer (); |
47b69537 | 126 | |
b6fe0bb8 | 127 | memset (context->diagnostic_count, 0, sizeof context->diagnostic_count); |
d0b8780d | 128 | context->some_warnings_are_errors = false; |
7783b402 | 129 | context->warning_as_error_requested = false; |
5f0f4a3b JM |
130 | context->n_opts = n_opts; |
131 | context->classify_diagnostic = XNEWVEC (diagnostic_t, n_opts); | |
132 | for (i = 0; i < n_opts; i++) | |
133 | context->classify_diagnostic[i] = DK_UNSPECIFIED; | |
9fec0042 MLI |
134 | context->show_caret = false; |
135 | diagnostic_set_caret_max_width (context, pp_line_cutoff (context->printer)); | |
2098fe9e | 136 | context->show_option_requested = false; |
b6fe0bb8 | 137 | context->abort_on_error = false; |
5f0f4a3b JM |
138 | context->show_column = false; |
139 | context->pedantic_errors = false; | |
140 | context->permissive = false; | |
141 | context->opt_permissive = 0; | |
142 | context->fatal_errors = false; | |
e3339d0f JM |
143 | context->dc_inhibit_warnings = false; |
144 | context->dc_warn_system_headers = false; | |
3a789837 | 145 | context->max_errors = 0; |
b6fe0bb8 | 146 | context->internal_error = NULL; |
47b69537 GDR |
147 | diagnostic_starter (context) = default_diagnostic_starter; |
148 | diagnostic_finalizer (context) = default_diagnostic_finalizer; | |
5f0f4a3b | 149 | context->option_enabled = NULL; |
46625112 | 150 | context->option_state = NULL; |
5f0f4a3b | 151 | context->option_name = NULL; |
1b8b126f | 152 | context->last_location = UNKNOWN_LOCATION; |
b6fe0bb8 | 153 | context->last_module = 0; |
cf835838 | 154 | context->x_data = NULL; |
b6fe0bb8 | 155 | context->lock = 0; |
0e94b750 | 156 | context->inhibit_notes_p = false; |
47b69537 GDR |
157 | } |
158 | ||
d0b8780d MLI |
159 | /* Do any cleaning up required after the last diagnostic is emitted. */ |
160 | ||
161 | void | |
162 | diagnostic_finish (diagnostic_context *context) | |
163 | { | |
164 | /* Some of the errors may actually have been warnings. */ | |
165 | if (context->some_warnings_are_errors) | |
166 | { | |
167 | /* -Werror was given. */ | |
168 | if (context->warning_as_error_requested) | |
169 | pp_verbatim (context->printer, | |
1f01c3ec | 170 | _("%s: all warnings being treated as errors"), |
d0b8780d MLI |
171 | progname); |
172 | /* At least one -Werror= was given. */ | |
173 | else | |
174 | pp_verbatim (context->printer, | |
1f01c3ec | 175 | _("%s: some warnings being treated as errors"), |
d0b8780d | 176 | progname); |
f8923f7e | 177 | pp_newline_and_flush (context->printer); |
d0b8780d MLI |
178 | } |
179 | } | |
180 | ||
178b58b5 JM |
181 | /* Initialize DIAGNOSTIC, where the message MSG has already been |
182 | translated. */ | |
47b69537 | 183 | void |
178b58b5 JM |
184 | diagnostic_set_info_translated (diagnostic_info *diagnostic, const char *msg, |
185 | va_list *args, location_t location, | |
186 | diagnostic_t kind) | |
47b69537 | 187 | { |
fa6ef813 | 188 | diagnostic->message.err_no = errno; |
47b69537 | 189 | diagnostic->message.args_ptr = args; |
178b58b5 | 190 | diagnostic->message.format_spec = msg; |
d5706a1e | 191 | diagnostic->location = location; |
148e4216 | 192 | diagnostic->override_column = 0; |
47b69537 | 193 | diagnostic->kind = kind; |
ccf08a6e | 194 | diagnostic->option_index = 0; |
47b69537 GDR |
195 | } |
196 | ||
178b58b5 JM |
197 | /* Initialize DIAGNOSTIC, where the message GMSGID has not yet been |
198 | translated. */ | |
199 | void | |
200 | diagnostic_set_info (diagnostic_info *diagnostic, const char *gmsgid, | |
201 | va_list *args, location_t location, | |
202 | diagnostic_t kind) | |
203 | { | |
204 | diagnostic_set_info_translated (diagnostic, _(gmsgid), args, location, kind); | |
205 | } | |
206 | ||
47b69537 GDR |
207 | /* Return a malloc'd string describing a location. The caller is |
208 | responsible for freeing the memory. */ | |
209 | char * | |
243fbddd | 210 | diagnostic_build_prefix (diagnostic_context *context, |
dfa32261 | 211 | const diagnostic_info *diagnostic) |
47b69537 | 212 | { |
ef9772c8 | 213 | static const char *const diagnostic_kind_text[] = { |
4b84d650 | 214 | #define DEFINE_DIAGNOSTIC_KIND(K, T, C) (T), |
4b1d52c7 GDR |
215 | #include "diagnostic.def" |
216 | #undef DEFINE_DIAGNOSTIC_KIND | |
217 | "must-not-happen" | |
218 | }; | |
4b84d650 JJ |
219 | static const char *const diagnostic_kind_color[] = { |
220 | #define DEFINE_DIAGNOSTIC_KIND(K, T, C) (C), | |
221 | #include "diagnostic.def" | |
222 | #undef DEFINE_DIAGNOSTIC_KIND | |
223 | NULL | |
224 | }; | |
255508dd | 225 | const char *text = _(diagnostic_kind_text[diagnostic->kind]); |
4b84d650 JJ |
226 | const char *text_cs = "", *text_ce = ""; |
227 | const char *locus_cs, *locus_ce; | |
228 | pretty_printer *pp = context->printer; | |
229 | ||
230 | if (diagnostic_kind_color[diagnostic->kind]) | |
231 | { | |
232 | text_cs = colorize_start (pp_show_color (pp), | |
233 | diagnostic_kind_color[diagnostic->kind]); | |
234 | text_ce = colorize_stop (pp_show_color (pp)); | |
235 | } | |
236 | locus_cs = colorize_start (pp_show_color (pp), "locus"); | |
237 | locus_ce = colorize_stop (pp_show_color (pp)); | |
238 | ||
7eb918cc | 239 | expanded_location s = expand_location_to_spelling_point (diagnostic->location); |
148e4216 JM |
240 | if (diagnostic->override_column) |
241 | s.column = diagnostic->override_column; | |
ced3f397 | 242 | gcc_assert (diagnostic->kind < DK_LAST_DIAGNOSTIC_KIND); |
4b1d52c7 | 243 | |
255508dd PB |
244 | return |
245 | (s.file == NULL | |
4b84d650 JJ |
246 | ? build_message_string ("%s%s:%s %s%s%s", locus_cs, progname, locus_ce, |
247 | text_cs, text, text_ce) | |
97f1f314 PC |
248 | : !strcmp (s.file, N_("<built-in>")) |
249 | ? build_message_string ("%s%s:%s %s%s%s", locus_cs, s.file, locus_ce, | |
250 | text_cs, text, text_ce) | |
243fbddd | 251 | : context->show_column |
4b84d650 JJ |
252 | ? build_message_string ("%s%s:%d:%d:%s %s%s%s", locus_cs, s.file, s.line, |
253 | s.column, locus_ce, text_cs, text, text_ce) | |
254 | : build_message_string ("%s%s:%d:%s %s%s%s", locus_cs, s.file, s.line, locus_ce, | |
255 | text_cs, text, text_ce)); | |
47b69537 GDR |
256 | } |
257 | ||
9fec0042 MLI |
258 | /* If LINE is longer than MAX_WIDTH, and COLUMN is not smaller than |
259 | MAX_WIDTH by some margin, then adjust the start of the line such | |
260 | that the COLUMN is smaller than MAX_WIDTH minus the margin. The | |
261 | margin is either 10 characters or the difference between the column | |
7f4d640c | 262 | and the length of the line, whatever is smaller. */ |
9fec0042 | 263 | static const char * |
7f4d640c | 264 | adjust_line (const char *line, int max_width, int *column_p) |
9fec0042 MLI |
265 | { |
266 | int right_margin = 10; | |
7f4d640c | 267 | int line_width = strlen (line); |
9fec0042 MLI |
268 | int column = *column_p; |
269 | ||
c3284718 | 270 | right_margin = MIN (line_width - column, right_margin); |
9fec0042 MLI |
271 | right_margin = max_width - right_margin; |
272 | if (line_width >= max_width && column > right_margin) | |
273 | { | |
274 | line += column - right_margin; | |
275 | *column_p = right_margin; | |
276 | } | |
277 | return line; | |
278 | } | |
279 | ||
280 | /* Print the physical source line corresponding to the location of | |
281 | this diagnostics, and a caret indicating the precise column. */ | |
282 | void | |
283 | diagnostic_show_locus (diagnostic_context * context, | |
284 | const diagnostic_info *diagnostic) | |
285 | { | |
286 | const char *line; | |
287 | char *buffer; | |
288 | expanded_location s; | |
289 | int max_width; | |
290 | const char *saved_prefix; | |
4b84d650 | 291 | const char *caret_cs, *caret_ce; |
9fec0042 MLI |
292 | |
293 | if (!context->show_caret | |
1b8b126f MLI |
294 | || diagnostic->location <= BUILTINS_LOCATION |
295 | || diagnostic->location == context->last_location) | |
9fec0042 MLI |
296 | return; |
297 | ||
1b8b126f | 298 | context->last_location = diagnostic->location; |
7eb918cc | 299 | s = expand_location_to_spelling_point (diagnostic->location); |
7f4d640c | 300 | line = location_get_source_line (s); |
9fec0042 MLI |
301 | if (line == NULL) |
302 | return; | |
303 | ||
304 | max_width = context->caret_max_width; | |
7f4d640c | 305 | line = adjust_line (line, max_width, &(s.column)); |
9fec0042 MLI |
306 | |
307 | pp_newline (context->printer); | |
308 | saved_prefix = pp_get_prefix (context->printer); | |
309 | pp_set_prefix (context->printer, NULL); | |
07838b13 | 310 | pp_space (context->printer); |
7f4d640c | 311 | while (max_width > 0 && *line != '\0') |
9fec0042 MLI |
312 | { |
313 | char c = *line == '\t' ? ' ' : *line; | |
314 | pp_character (context->printer, c); | |
315 | max_width--; | |
316 | line++; | |
317 | } | |
318 | pp_newline (context->printer); | |
4b84d650 JJ |
319 | caret_cs = colorize_start (pp_show_color (context->printer), "caret"); |
320 | caret_ce = colorize_stop (pp_show_color (context->printer)); | |
321 | ||
9fec0042 | 322 | /* pp_printf does not implement %*c. */ |
4b84d650 JJ |
323 | size_t len = s.column + 3 + strlen (caret_cs) + strlen (caret_ce); |
324 | buffer = XALLOCAVEC (char, len); | |
325 | snprintf (buffer, len, "%s %*c%s", caret_cs, s.column, '^', caret_ce); | |
9fec0042 MLI |
326 | pp_string (context->printer, buffer); |
327 | pp_set_prefix (context->printer, saved_prefix); | |
328 | } | |
329 | ||
d83697f4 ILT |
330 | /* Functions at which to stop the backtrace print. It's not |
331 | particularly helpful to print the callers of these functions. */ | |
332 | ||
333 | static const char * const bt_stop[] = | |
334 | { | |
335 | "main", | |
336 | "toplev_main", | |
337 | "execute_one_pass", | |
338 | "compile_file", | |
339 | }; | |
340 | ||
341 | /* A callback function passed to the backtrace_full function. */ | |
342 | ||
343 | static int | |
344 | bt_callback (void *data, uintptr_t pc, const char *filename, int lineno, | |
345 | const char *function) | |
346 | { | |
347 | int *pcount = (int *) data; | |
348 | ||
349 | /* If we don't have any useful information, don't print | |
350 | anything. */ | |
351 | if (filename == NULL && function == NULL) | |
352 | return 0; | |
353 | ||
354 | /* Skip functions in diagnostic.c. */ | |
355 | if (*pcount == 0 | |
356 | && filename != NULL | |
c3284718 | 357 | && strcmp (lbasename (filename), "diagnostic.c") == 0) |
d83697f4 ILT |
358 | return 0; |
359 | ||
360 | /* Print up to 20 functions. We could make this a --param, but | |
361 | since this is only for debugging just use a constant for now. */ | |
362 | if (*pcount >= 20) | |
363 | { | |
364 | /* Returning a non-zero value stops the backtrace. */ | |
365 | return 1; | |
366 | } | |
367 | ++*pcount; | |
368 | ||
369 | char *alc = NULL; | |
370 | if (function != NULL) | |
371 | { | |
372 | char *str = cplus_demangle_v3 (function, | |
373 | (DMGL_VERBOSE | DMGL_ANSI | |
374 | | DMGL_GNU_V3 | DMGL_PARAMS)); | |
375 | if (str != NULL) | |
376 | { | |
377 | alc = str; | |
378 | function = str; | |
379 | } | |
380 | ||
381 | for (size_t i = 0; i < ARRAY_SIZE (bt_stop); ++i) | |
382 | { | |
383 | size_t len = strlen (bt_stop[i]); | |
384 | if (strncmp (function, bt_stop[i], len) == 0 | |
385 | && (function[len] == '\0' || function[len] == '(')) | |
386 | { | |
387 | if (alc != NULL) | |
388 | free (alc); | |
389 | /* Returning a non-zero value stops the backtrace. */ | |
390 | return 1; | |
391 | } | |
392 | } | |
393 | } | |
394 | ||
395 | fprintf (stderr, "0x%lx %s\n\t%s:%d\n", | |
a67a73fd | 396 | (unsigned long) pc, |
d83697f4 ILT |
397 | function == NULL ? "???" : function, |
398 | filename == NULL ? "???" : filename, | |
399 | lineno); | |
400 | ||
401 | if (alc != NULL) | |
402 | free (alc); | |
403 | ||
404 | return 0; | |
405 | } | |
406 | ||
407 | /* A callback function passed to the backtrace_full function. This is | |
408 | called if backtrace_full has an error. */ | |
409 | ||
410 | static void | |
411 | bt_err_callback (void *data ATTRIBUTE_UNUSED, const char *msg, int errnum) | |
412 | { | |
413 | if (errnum < 0) | |
414 | { | |
415 | /* This means that no debug info was available. Just quietly | |
416 | skip printing backtrace info. */ | |
417 | return; | |
418 | } | |
419 | fprintf (stderr, "%s%s%s\n", msg, errnum == 0 ? "" : ": ", | |
420 | errnum == 0 ? "" : xstrerror (errnum)); | |
421 | } | |
422 | ||
9804f5fb ZW |
423 | /* Take any action which is expected to happen after the diagnostic |
424 | is written out. This function does not always return. */ | |
425 | static void | |
79a490a9 AJ |
426 | diagnostic_action_after_output (diagnostic_context *context, |
427 | diagnostic_info *diagnostic) | |
9804f5fb ZW |
428 | { |
429 | switch (diagnostic->kind) | |
430 | { | |
431 | case DK_DEBUG: | |
432 | case DK_NOTE: | |
433 | case DK_ANACHRONISM: | |
434 | case DK_WARNING: | |
435 | break; | |
436 | ||
437 | case DK_ERROR: | |
438 | case DK_SORRY: | |
439 | if (context->abort_on_error) | |
440 | real_abort (); | |
243fbddd | 441 | if (context->fatal_errors) |
c65a01af RG |
442 | { |
443 | fnotice (stderr, "compilation terminated due to -Wfatal-errors.\n"); | |
d0b8780d | 444 | diagnostic_finish (context); |
c65a01af RG |
445 | exit (FATAL_EXIT_CODE); |
446 | } | |
3a789837 NF |
447 | if (context->max_errors != 0 |
448 | && ((unsigned) (diagnostic_kind_count (context, DK_ERROR) | |
449 | + diagnostic_kind_count (context, DK_SORRY)) | |
450 | >= context->max_errors)) | |
451 | { | |
452 | fnotice (stderr, | |
453 | "compilation terminated due to -fmax-errors=%u.\n", | |
454 | context->max_errors); | |
455 | diagnostic_finish (context); | |
456 | exit (FATAL_EXIT_CODE); | |
457 | } | |
9804f5fb ZW |
458 | break; |
459 | ||
460 | case DK_ICE: | |
d83697f4 ILT |
461 | { |
462 | struct backtrace_state *state = | |
463 | backtrace_create_state (NULL, 0, bt_err_callback, NULL); | |
464 | int count = 0; | |
465 | if (state != NULL) | |
466 | backtrace_full (state, 2, bt_callback, bt_err_callback, | |
467 | (void *) &count); | |
468 | ||
469 | if (context->abort_on_error) | |
470 | real_abort (); | |
471 | ||
472 | fnotice (stderr, "Please submit a full bug report,\n" | |
473 | "with preprocessed source if appropriate.\n"); | |
474 | if (count > 0) | |
475 | fnotice (stderr, | |
476 | ("Please include the complete backtrace " | |
477 | "with any bug report.\n")); | |
478 | fnotice (stderr, "See %s for instructions.\n", bug_report_url); | |
9804f5fb | 479 | |
d83697f4 ILT |
480 | exit (ICE_EXIT_CODE); |
481 | } | |
9804f5fb ZW |
482 | |
483 | case DK_FATAL: | |
484 | if (context->abort_on_error) | |
485 | real_abort (); | |
d0b8780d | 486 | diagnostic_finish (context); |
9804f5fb ZW |
487 | fnotice (stderr, "compilation terminated.\n"); |
488 | exit (FATAL_EXIT_CODE); | |
489 | ||
490 | default: | |
d5706a1e | 491 | gcc_unreachable (); |
9804f5fb ZW |
492 | } |
493 | } | |
494 | ||
6ed551b4 | 495 | void |
07a0b324 | 496 | diagnostic_report_current_module (diagnostic_context *context, location_t where) |
6ed551b4 | 497 | { |
07a0b324 | 498 | const struct line_map *map = NULL; |
6ed551b4 | 499 | |
b6fe0bb8 | 500 | if (pp_needs_newline (context->printer)) |
59650e48 | 501 | { |
b6fe0bb8 GDR |
502 | pp_newline (context->printer); |
503 | pp_needs_newline (context->printer) = false; | |
59650e48 | 504 | } |
6ed551b4 | 505 | |
07a0b324 | 506 | if (where <= BUILTINS_LOCATION) |
966e8f4d TT |
507 | return; |
508 | ||
07a0b324 TT |
509 | linemap_resolve_location (line_table, where, |
510 | LRK_MACRO_DEFINITION_LOCATION, | |
511 | &map); | |
512 | ||
966e8f4d | 513 | if (map && diagnostic_last_module_changed (context, map)) |
59650e48 | 514 | { |
966e8f4d TT |
515 | diagnostic_set_last_module (context, map); |
516 | if (! MAIN_FILE_P (map)) | |
6773e15f | 517 | { |
966e8f4d | 518 | map = INCLUDED_FROM (line_table, map); |
243fbddd | 519 | if (context->show_column) |
e74fe492 | 520 | pp_verbatim (context->printer, |
2e55d062 | 521 | "In file included from %r%s:%d:%d%R", "locus", |
46427374 | 522 | LINEMAP_FILE (map), |
e74fe492 AH |
523 | LAST_SOURCE_LINE (map), LAST_SOURCE_COLUMN (map)); |
524 | else | |
525 | pp_verbatim (context->printer, | |
2e55d062 | 526 | "In file included from %r%s:%d%R", "locus", |
46427374 | 527 | LINEMAP_FILE (map), LAST_SOURCE_LINE (map)); |
966e8f4d TT |
528 | while (! MAIN_FILE_P (map)) |
529 | { | |
530 | map = INCLUDED_FROM (line_table, map); | |
531 | pp_verbatim (context->printer, | |
2e55d062 | 532 | ",\n from %r%s:%d%R", "locus", |
46427374 | 533 | LINEMAP_FILE (map), LAST_SOURCE_LINE (map)); |
966e8f4d TT |
534 | } |
535 | pp_verbatim (context->printer, ":"); | |
536 | pp_newline (context->printer); | |
6773e15f | 537 | } |
59650e48 ZW |
538 | } |
539 | } | |
400500c4 | 540 | |
4537ec0c | 541 | void |
79a490a9 AJ |
542 | default_diagnostic_starter (diagnostic_context *context, |
543 | diagnostic_info *diagnostic) | |
6ed551b4 | 544 | { |
07a0b324 | 545 | diagnostic_report_current_module (context, diagnostic->location); |
243fbddd JM |
546 | pp_set_prefix (context->printer, diagnostic_build_prefix (context, |
547 | diagnostic)); | |
59650e48 | 548 | } |
6ed551b4 | 549 | |
4537ec0c | 550 | void |
dfa32261 | 551 | default_diagnostic_finalizer (diagnostic_context *context ATTRIBUTE_UNUSED, |
cbd13f8a | 552 | diagnostic_info *diagnostic ATTRIBUTE_UNUSED) |
59650e48 | 553 | { |
6ed551b4 GDR |
554 | } |
555 | ||
79cf5994 DD |
556 | /* Interface to specify diagnostic kind overrides. Returns the |
557 | previous setting, or DK_UNSPECIFIED if the parameters are out of | |
3c8ca1ab EB |
558 | range. If OPTION_INDEX is zero, the new setting is for all the |
559 | diagnostics. */ | |
79cf5994 DD |
560 | diagnostic_t |
561 | diagnostic_classify_diagnostic (diagnostic_context *context, | |
562 | int option_index, | |
cd7fe53b DD |
563 | diagnostic_t new_kind, |
564 | location_t where) | |
79cf5994 DD |
565 | { |
566 | diagnostic_t old_kind; | |
567 | ||
3c8ca1ab | 568 | if (option_index < 0 |
5f0f4a3b | 569 | || option_index >= context->n_opts |
79cf5994 DD |
570 | || new_kind >= DK_LAST_DIAGNOSTIC_KIND) |
571 | return DK_UNSPECIFIED; | |
572 | ||
573 | old_kind = context->classify_diagnostic[option_index]; | |
cd7fe53b DD |
574 | |
575 | /* Handle pragmas separately, since we need to keep track of *where* | |
576 | the pragmas were. */ | |
577 | if (where != UNKNOWN_LOCATION) | |
578 | { | |
579 | int i; | |
580 | ||
581 | for (i = context->n_classification_history - 1; i >= 0; i --) | |
582 | if (context->classification_history[i].option == option_index) | |
583 | { | |
584 | old_kind = context->classification_history[i].kind; | |
585 | break; | |
586 | } | |
587 | ||
588 | i = context->n_classification_history; | |
589 | context->classification_history = | |
590 | (diagnostic_classification_change_t *) xrealloc (context->classification_history, (i + 1) | |
591 | * sizeof (diagnostic_classification_change_t)); | |
592 | context->classification_history[i].location = where; | |
593 | context->classification_history[i].option = option_index; | |
594 | context->classification_history[i].kind = new_kind; | |
595 | context->n_classification_history ++; | |
596 | } | |
597 | else | |
598 | context->classify_diagnostic[option_index] = new_kind; | |
599 | ||
79cf5994 DD |
600 | return old_kind; |
601 | } | |
602 | ||
cd7fe53b DD |
603 | /* Save all diagnostic classifications in a stack. */ |
604 | void | |
605 | diagnostic_push_diagnostics (diagnostic_context *context, location_t where ATTRIBUTE_UNUSED) | |
606 | { | |
607 | context->push_list = (int *) xrealloc (context->push_list, (context->n_push + 1) * sizeof (int)); | |
608 | context->push_list[context->n_push ++] = context->n_classification_history; | |
609 | } | |
610 | ||
611 | /* Restore the topmost classification set off the stack. If the stack | |
612 | is empty, revert to the state based on command line parameters. */ | |
613 | void | |
614 | diagnostic_pop_diagnostics (diagnostic_context *context, location_t where) | |
615 | { | |
616 | int jump_to; | |
617 | int i; | |
618 | ||
619 | if (context->n_push) | |
620 | jump_to = context->push_list [-- context->n_push]; | |
621 | else | |
622 | jump_to = 0; | |
623 | ||
624 | i = context->n_classification_history; | |
625 | context->classification_history = | |
626 | (diagnostic_classification_change_t *) xrealloc (context->classification_history, (i + 1) | |
627 | * sizeof (diagnostic_classification_change_t)); | |
628 | context->classification_history[i].location = where; | |
629 | context->classification_history[i].option = jump_to; | |
630 | context->classification_history[i].kind = DK_POP; | |
631 | context->n_classification_history ++; | |
632 | } | |
633 | ||
59650e48 ZW |
634 | /* Report a diagnostic message (an error or a warning) as specified by |
635 | DC. This function is *the* subroutine in terms of which front-ends | |
636 | should implement their specific diagnostic handling modules. The | |
637 | front-end independent format specifiers are exactly those described | |
b8698a0f | 638 | in the documentation of output_format. |
71205d17 | 639 | Return true if a diagnostic was printed, false otherwise. */ |
400500c4 | 640 | |
71205d17 | 641 | bool |
79a490a9 AJ |
642 | diagnostic_report_diagnostic (diagnostic_context *context, |
643 | diagnostic_info *diagnostic) | |
400500c4 | 644 | { |
aa14403d | 645 | location_t location = diagnostic->location; |
d0b8780d | 646 | diagnostic_t orig_diag_kind = diagnostic->kind; |
52249a2e | 647 | const char *saved_format_spec; |
4e2bae26 MLI |
648 | |
649 | /* Give preference to being able to inhibit warnings, before they | |
650 | get reclassified to something else. */ | |
71205d17 | 651 | if ((diagnostic->kind == DK_WARNING || diagnostic->kind == DK_PEDWARN) |
5f0f4a3b | 652 | && !diagnostic_report_warnings_p (context, location)) |
71205d17 MLI |
653 | return false; |
654 | ||
b8698a0f | 655 | if (diagnostic->kind == DK_PEDWARN) |
d0b8780d | 656 | { |
243fbddd | 657 | diagnostic->kind = pedantic_warning_kind (context); |
d0b8780d MLI |
658 | /* We do this to avoid giving the message for -pedantic-errors. */ |
659 | orig_diag_kind = diagnostic->kind; | |
660 | } | |
0e94b750 MLI |
661 | |
662 | if (diagnostic->kind == DK_NOTE && context->inhibit_notes_p) | |
663 | return false; | |
b8698a0f | 664 | |
d5706a1e ZW |
665 | if (context->lock > 0) |
666 | { | |
667 | /* If we're reporting an ICE in the middle of some other error, | |
668 | try to flush out the previous error, then let this one | |
669 | through. Don't do this more than once. */ | |
670 | if (diagnostic->kind == DK_ICE && context->lock == 1) | |
f8923f7e | 671 | pp_newline_and_flush (context->printer); |
d5706a1e ZW |
672 | else |
673 | error_recursion (context); | |
674 | } | |
675 | ||
4e2bae26 MLI |
676 | /* If the user requested that warnings be treated as errors, so be |
677 | it. Note that we do this before the next block so that | |
678 | individual warnings can be overridden back to warnings with | |
679 | -Wno-error=*. */ | |
680 | if (context->warning_as_error_requested | |
681 | && diagnostic->kind == DK_WARNING) | |
682 | { | |
683 | diagnostic->kind = DK_ERROR; | |
4e2bae26 | 684 | } |
b8698a0f | 685 | |
0c3641b0 MLI |
686 | if (diagnostic->option_index |
687 | && diagnostic->option_index != permissive_error_option (context)) | |
79cf5994 | 688 | { |
cd7fe53b DD |
689 | diagnostic_t diag_class = DK_UNSPECIFIED; |
690 | ||
79cf5994 DD |
691 | /* This tests if the user provided the appropriate -Wfoo or |
692 | -Wno-foo option. */ | |
46625112 JM |
693 | if (! context->option_enabled (diagnostic->option_index, |
694 | context->option_state)) | |
71205d17 | 695 | return false; |
cd7fe53b DD |
696 | |
697 | /* This tests for #pragma diagnostic changes. */ | |
698 | if (context->n_classification_history > 0) | |
699 | { | |
cd7fe53b | 700 | /* FIXME: Stupid search. Optimize later. */ |
3c8ca1ab | 701 | for (int i = context->n_classification_history - 1; i >= 0; i --) |
cd7fe53b | 702 | { |
46427374 TT |
703 | if (linemap_location_before_p |
704 | (line_table, | |
705 | context->classification_history[i].location, | |
706 | location)) | |
cd7fe53b DD |
707 | { |
708 | if (context->classification_history[i].kind == (int) DK_POP) | |
709 | { | |
710 | i = context->classification_history[i].option; | |
711 | continue; | |
712 | } | |
3c8ca1ab EB |
713 | int option = context->classification_history[i].option; |
714 | /* The option 0 is for all the diagnostics. */ | |
715 | if (option == 0 || option == diagnostic->option_index) | |
cd7fe53b DD |
716 | { |
717 | diag_class = context->classification_history[i].kind; | |
718 | if (diag_class != DK_UNSPECIFIED) | |
719 | diagnostic->kind = diag_class; | |
720 | break; | |
721 | } | |
722 | } | |
723 | } | |
724 | } | |
79cf5994 DD |
725 | /* This tests if the user provided the appropriate -Werror=foo |
726 | option. */ | |
cd7fe53b DD |
727 | if (diag_class == DK_UNSPECIFIED |
728 | && context->classify_diagnostic[diagnostic->option_index] != DK_UNSPECIFIED) | |
4e2bae26 MLI |
729 | { |
730 | diagnostic->kind = context->classify_diagnostic[diagnostic->option_index]; | |
4e2bae26 | 731 | } |
c0220ea4 | 732 | /* This allows for future extensions, like temporarily disabling |
79cf5994 DD |
733 | warnings for ranges of source code. */ |
734 | if (diagnostic->kind == DK_IGNORED) | |
71205d17 | 735 | return false; |
79cf5994 | 736 | } |
2098fe9e | 737 | |
d0b8780d MLI |
738 | if (orig_diag_kind == DK_WARNING && diagnostic->kind == DK_ERROR) |
739 | context->some_warnings_are_errors = true; | |
4e2bae26 | 740 | |
d5706a1e | 741 | context->lock++; |
400500c4 | 742 | |
b8698a0f | 743 | if (diagnostic->kind == DK_ICE) |
59650e48 | 744 | { |
52249a2e MLI |
745 | #ifndef ENABLE_CHECKING |
746 | /* When not checking, ICEs are converted to fatal errors when an | |
747 | error has already occurred. This is counteracted by | |
748 | abort_on_error. */ | |
749 | if ((diagnostic_kind_count (context, DK_ERROR) > 0 | |
750 | || diagnostic_kind_count (context, DK_SORRY) > 0) | |
751 | && !context->abort_on_error) | |
752 | { | |
753 | expanded_location s = expand_location (diagnostic->location); | |
754 | fnotice (stderr, "%s:%d: confused by earlier errors, bailing out\n", | |
755 | s.file, s.line); | |
756 | exit (ICE_EXIT_CODE); | |
757 | } | |
758 | #endif | |
759 | if (context->internal_error) | |
a13812e2 JM |
760 | (*context->internal_error) (context, |
761 | diagnostic->message.format_spec, | |
52249a2e | 762 | diagnostic->message.args_ptr); |
43db5b3c | 763 | } |
37e99116 JJ |
764 | if (diagnostic->kind == DK_ERROR && orig_diag_kind == DK_WARNING) |
765 | ++diagnostic_kind_count (context, DK_WERROR); | |
766 | else | |
767 | ++diagnostic_kind_count (context, diagnostic->kind); | |
b8698a0f | 768 | |
52249a2e | 769 | saved_format_spec = diagnostic->message.format_spec; |
289fcbbd MLI |
770 | if (context->show_option_requested) |
771 | { | |
5f0f4a3b | 772 | char *option_text; |
b8698a0f | 773 | |
5f0f4a3b JM |
774 | option_text = context->option_name (context, diagnostic->option_index, |
775 | orig_diag_kind, diagnostic->kind); | |
289fcbbd MLI |
776 | |
777 | if (option_text) | |
5f0f4a3b JM |
778 | { |
779 | diagnostic->message.format_spec | |
780 | = ACONCAT ((diagnostic->message.format_spec, | |
781 | " ", | |
782 | "[", option_text, "]", | |
783 | NULL)); | |
784 | free (option_text); | |
785 | } | |
289fcbbd | 786 | } |
52249a2e | 787 | diagnostic->message.locus = &diagnostic->location; |
cf835838 JM |
788 | diagnostic->message.x_data = &diagnostic->x_data; |
789 | diagnostic->x_data = NULL; | |
52249a2e MLI |
790 | pp_format (context->printer, &diagnostic->message); |
791 | (*diagnostic_starter (context)) (context, diagnostic); | |
792 | pp_output_formatted_text (context->printer); | |
9fec0042 | 793 | diagnostic_show_locus (context, diagnostic); |
52249a2e | 794 | (*diagnostic_finalizer (context)) (context, diagnostic); |
dfa32261 | 795 | pp_destroy_prefix (context->printer); |
f8923f7e | 796 | pp_newline_and_flush (context->printer); |
52249a2e MLI |
797 | diagnostic_action_after_output (context, diagnostic); |
798 | diagnostic->message.format_spec = saved_format_spec; | |
cf835838 | 799 | diagnostic->x_data = NULL; |
9804f5fb ZW |
800 | |
801 | context->lock--; | |
71205d17 MLI |
802 | |
803 | return true; | |
59650e48 | 804 | } |
43db5b3c | 805 | |
59650e48 ZW |
806 | /* Given a partial pathname as input, return another pathname that |
807 | shares no directory elements with the pathname of __FILE__. This | |
808 | is used by fancy_abort() to print `Internal compiler error in expr.c' | |
809 | instead of `Internal compiler error in ../../GCC/gcc/expr.c'. */ | |
3a538a66 | 810 | |
59650e48 | 811 | const char * |
79a490a9 | 812 | trim_filename (const char *name) |
59650e48 ZW |
813 | { |
814 | static const char this_file[] = __FILE__; | |
815 | const char *p = name, *q = this_file; | |
43db5b3c | 816 | |
59650e48 ZW |
817 | /* First skip any "../" in each filename. This allows us to give a proper |
818 | reference to a file in a subdirectory. */ | |
d5706a1e | 819 | while (p[0] == '.' && p[1] == '.' && IS_DIR_SEPARATOR (p[2])) |
59650e48 ZW |
820 | p += 3; |
821 | ||
d5706a1e | 822 | while (q[0] == '.' && q[1] == '.' && IS_DIR_SEPARATOR (q[2])) |
59650e48 ZW |
823 | q += 3; |
824 | ||
825 | /* Now skip any parts the two filenames have in common. */ | |
826 | while (*p == *q && *p != 0 && *q != 0) | |
827 | p++, q++; | |
828 | ||
829 | /* Now go backwards until the previous directory separator. */ | |
ef9af077 | 830 | while (p > name && !IS_DIR_SEPARATOR (p[-1])) |
59650e48 ZW |
831 | p--; |
832 | ||
833 | return p; | |
6ed551b4 | 834 | } |
59650e48 ZW |
835 | \f |
836 | /* Standard error reporting routines in increasing order of severity. | |
837 | All of these take arguments like printf. */ | |
6ed551b4 | 838 | |
59650e48 ZW |
839 | /* Text to be emitted verbatim to the error message stream; this |
840 | produces no prefix and disables line-wrapping. Use rarely. */ | |
6ed551b4 | 841 | void |
4b794eaf | 842 | verbatim (const char *gmsgid, ...) |
59650e48 ZW |
843 | { |
844 | text_info text; | |
e34d07f2 | 845 | va_list ap; |
59650e48 | 846 | |
4b794eaf | 847 | va_start (ap, gmsgid); |
fa6ef813 | 848 | text.err_no = errno; |
59650e48 | 849 | text.args_ptr = ≈ |
4b794eaf | 850 | text.format_spec = _(gmsgid); |
39ce81c9 | 851 | text.locus = NULL; |
cf835838 | 852 | text.x_data = NULL; |
b6fe0bb8 | 853 | pp_format_verbatim (global_dc->printer, &text); |
f8923f7e | 854 | pp_newline_and_flush (global_dc->printer); |
e34d07f2 | 855 | va_end (ap); |
59650e48 ZW |
856 | } |
857 | ||
dfa32261 MLI |
858 | /* Add a note with text GMSGID and with LOCATION to the diagnostic CONTEXT. */ |
859 | void | |
860 | diagnostic_append_note (diagnostic_context *context, | |
861 | location_t location, | |
862 | const char * gmsgid, ...) | |
863 | { | |
864 | diagnostic_info diagnostic; | |
865 | va_list ap; | |
4432aa6c | 866 | const char *saved_prefix; |
dfa32261 MLI |
867 | |
868 | va_start (ap, gmsgid); | |
869 | diagnostic_set_info (&diagnostic, gmsgid, &ap, location, DK_NOTE); | |
870 | if (context->inhibit_notes_p) | |
3b4adfb3 TB |
871 | { |
872 | va_end (ap); | |
873 | return; | |
874 | } | |
4432aa6c | 875 | saved_prefix = pp_get_prefix (context->printer); |
dfa32261 MLI |
876 | pp_set_prefix (context->printer, |
877 | diagnostic_build_prefix (context, &diagnostic)); | |
878 | pp_newline (context->printer); | |
879 | pp_format (context->printer, &diagnostic.message); | |
880 | pp_output_formatted_text (context->printer); | |
881 | pp_destroy_prefix (context->printer); | |
4432aa6c | 882 | pp_set_prefix (context->printer, saved_prefix); |
dfa32261 | 883 | diagnostic_show_locus (context, &diagnostic); |
c3284718 | 884 | va_end (ap); |
dfa32261 MLI |
885 | } |
886 | ||
71205d17 | 887 | bool |
b8698a0f | 888 | emit_diagnostic (diagnostic_t kind, location_t location, int opt, |
71205d17 | 889 | const char *gmsgid, ...) |
6ed551b4 | 890 | { |
47b69537 | 891 | diagnostic_info diagnostic; |
e34d07f2 | 892 | va_list ap; |
80f24351 | 893 | bool ret; |
59650e48 | 894 | |
4b794eaf | 895 | va_start (ap, gmsgid); |
71205d17 MLI |
896 | if (kind == DK_PERMERROR) |
897 | { | |
898 | diagnostic_set_info (&diagnostic, gmsgid, &ap, location, | |
243fbddd | 899 | permissive_error_kind (global_dc)); |
5f0f4a3b | 900 | diagnostic.option_index = permissive_error_option (global_dc); |
71205d17 MLI |
901 | } |
902 | else { | |
903 | diagnostic_set_info (&diagnostic, gmsgid, &ap, location, kind); | |
904 | if (kind == DK_WARNING || kind == DK_PEDWARN) | |
905 | diagnostic.option_index = opt; | |
906 | } | |
71205d17 | 907 | |
80f24351 MM |
908 | ret = report_diagnostic (&diagnostic); |
909 | va_end (ap); | |
910 | return ret; | |
6ed551b4 GDR |
911 | } |
912 | ||
1f5b3869 | 913 | /* An informative note at LOCATION. Use this for additional details on an error |
71205d17 | 914 | message. */ |
6ed551b4 | 915 | void |
1f5b3869 | 916 | inform (location_t location, const char *gmsgid, ...) |
d4ee4d25 DD |
917 | { |
918 | diagnostic_info diagnostic; | |
919 | va_list ap; | |
920 | ||
4b794eaf | 921 | va_start (ap, gmsgid); |
1f5b3869 | 922 | diagnostic_set_info (&diagnostic, gmsgid, &ap, location, DK_NOTE); |
d4ee4d25 DD |
923 | report_diagnostic (&diagnostic); |
924 | va_end (ap); | |
925 | } | |
926 | ||
894e2652 SZ |
927 | /* An informative note at LOCATION. Use this for additional details on an |
928 | error message. */ | |
929 | void | |
930 | inform_n (location_t location, int n, const char *singular_gmsgid, | |
931 | const char *plural_gmsgid, ...) | |
932 | { | |
933 | diagnostic_info diagnostic; | |
934 | va_list ap; | |
935 | ||
936 | va_start (ap, plural_gmsgid); | |
937 | diagnostic_set_info_translated (&diagnostic, | |
938 | ngettext (singular_gmsgid, plural_gmsgid, n), | |
939 | &ap, location, DK_NOTE); | |
940 | report_diagnostic (&diagnostic); | |
941 | va_end (ap); | |
942 | } | |
943 | ||
71205d17 | 944 | /* A warning at INPUT_LOCATION. Use this for code which is correct according |
b8698a0f | 945 | to the relevant language specification but is likely to be buggy anyway. |
71205d17 MLI |
946 | Returns true if the warning was printed, false if it was inhibited. */ |
947 | bool | |
948 | warning (int opt, const char *gmsgid, ...) | |
6ed551b4 | 949 | { |
47b69537 | 950 | diagnostic_info diagnostic; |
e34d07f2 | 951 | va_list ap; |
80f24351 | 952 | bool ret; |
6ed551b4 | 953 | |
4b794eaf JJ |
954 | va_start (ap, gmsgid); |
955 | diagnostic_set_info (&diagnostic, gmsgid, &ap, input_location, DK_WARNING); | |
71205d17 MLI |
956 | diagnostic.option_index = opt; |
957 | ||
80f24351 | 958 | ret = report_diagnostic (&diagnostic); |
e34d07f2 | 959 | va_end (ap); |
80f24351 | 960 | return ret; |
6ed551b4 GDR |
961 | } |
962 | ||
aa14403d | 963 | /* A warning at LOCATION. Use this for code which is correct according to the |
71205d17 MLI |
964 | relevant language specification but is likely to be buggy anyway. |
965 | Returns true if the warning was printed, false if it was inhibited. */ | |
966 | ||
967 | bool | |
aa14403d RAE |
968 | warning_at (location_t location, int opt, const char *gmsgid, ...) |
969 | { | |
970 | diagnostic_info diagnostic; | |
971 | va_list ap; | |
80f24351 | 972 | bool ret; |
aa14403d RAE |
973 | |
974 | va_start (ap, gmsgid); | |
975 | diagnostic_set_info (&diagnostic, gmsgid, &ap, location, DK_WARNING); | |
976 | diagnostic.option_index = opt; | |
80f24351 | 977 | ret = report_diagnostic (&diagnostic); |
aa14403d | 978 | va_end (ap); |
80f24351 | 979 | return ret; |
aa14403d RAE |
980 | } |
981 | ||
85790e66 MLI |
982 | /* A "pedantic" warning at LOCATION: issues a warning unless |
983 | -pedantic-errors was given on the command line, in which case it | |
984 | issues an error. Use this for diagnostics required by the relevant | |
985 | language standard, if you have chosen not to make them errors. | |
9804f5fb ZW |
986 | |
987 | Note that these diagnostics are issued independent of the setting | |
c1771a20 | 988 | of the -Wpedantic command-line switch. To get a warning enabled |
fcf73884 | 989 | only with that switch, use either "if (pedantic) pedwarn |
c1771a20 MLI |
990 | (OPT_Wpedantic,...)" or just "pedwarn (OPT_Wpedantic,..)". To get a |
991 | pedwarn independently of the -Wpedantic switch use "pedwarn (0,...)". | |
fcf73884 | 992 | |
71205d17 MLI |
993 | Returns true if the warning was printed, false if it was inhibited. */ |
994 | ||
85790e66 | 995 | bool |
509c9d60 | 996 | pedwarn (location_t location, int opt, const char *gmsgid, ...) |
85790e66 MLI |
997 | { |
998 | diagnostic_info diagnostic; | |
999 | va_list ap; | |
80f24351 | 1000 | bool ret; |
85790e66 MLI |
1001 | |
1002 | va_start (ap, gmsgid); | |
1003 | diagnostic_set_info (&diagnostic, gmsgid, &ap, location, DK_PEDWARN); | |
1004 | diagnostic.option_index = opt; | |
80f24351 | 1005 | ret = report_diagnostic (&diagnostic); |
85790e66 | 1006 | va_end (ap); |
80f24351 | 1007 | return ret; |
85790e66 MLI |
1008 | } |
1009 | ||
7e99f74b MLI |
1010 | /* A "permissive" error at LOCATION: issues an error unless |
1011 | -fpermissive was given on the command line, in which case it issues | |
1012 | a warning. Use this for things that really should be errors but we | |
71205d17 | 1013 | want to support legacy code. |
7e99f74b | 1014 | |
71205d17 MLI |
1015 | Returns true if the warning was printed, false if it was inhibited. */ |
1016 | ||
1017 | bool | |
cbe5f3b3 | 1018 | permerror (location_t location, const char *gmsgid, ...) |
7e99f74b MLI |
1019 | { |
1020 | diagnostic_info diagnostic; | |
1021 | va_list ap; | |
80f24351 | 1022 | bool ret; |
7e99f74b MLI |
1023 | |
1024 | va_start (ap, gmsgid); | |
1025 | diagnostic_set_info (&diagnostic, gmsgid, &ap, location, | |
243fbddd | 1026 | permissive_error_kind (global_dc)); |
5f0f4a3b | 1027 | diagnostic.option_index = permissive_error_option (global_dc); |
80f24351 | 1028 | ret = report_diagnostic (&diagnostic); |
7e99f74b | 1029 | va_end (ap); |
80f24351 | 1030 | return ret; |
7e99f74b MLI |
1031 | } |
1032 | ||
59650e48 ZW |
1033 | /* A hard error: the code is definitely ill-formed, and an object file |
1034 | will not be produced. */ | |
8514e318 | 1035 | void |
4b794eaf | 1036 | error (const char *gmsgid, ...) |
8514e318 | 1037 | { |
59650e48 | 1038 | diagnostic_info diagnostic; |
e34d07f2 | 1039 | va_list ap; |
59650e48 | 1040 | |
4b794eaf JJ |
1041 | va_start (ap, gmsgid); |
1042 | diagnostic_set_info (&diagnostic, gmsgid, &ap, input_location, DK_ERROR); | |
59650e48 | 1043 | report_diagnostic (&diagnostic); |
e34d07f2 | 1044 | va_end (ap); |
93d87cb1 GDR |
1045 | } |
1046 | ||
894e2652 SZ |
1047 | /* A hard error: the code is definitely ill-formed, and an object file |
1048 | will not be produced. */ | |
1049 | void | |
1050 | error_n (location_t location, int n, const char *singular_gmsgid, | |
1051 | const char *plural_gmsgid, ...) | |
1052 | { | |
1053 | diagnostic_info diagnostic; | |
1054 | va_list ap; | |
1055 | ||
1056 | va_start (ap, plural_gmsgid); | |
1057 | diagnostic_set_info_translated (&diagnostic, | |
1058 | ngettext (singular_gmsgid, plural_gmsgid, n), | |
1059 | &ap, location, DK_ERROR); | |
1060 | report_diagnostic (&diagnostic); | |
1061 | va_end (ap); | |
1062 | } | |
1063 | ||
a63068b6 AH |
1064 | /* Same as ebove, but use location LOC instead of input_location. */ |
1065 | void | |
1066 | error_at (location_t loc, const char *gmsgid, ...) | |
1067 | { | |
1068 | diagnostic_info diagnostic; | |
1069 | va_list ap; | |
1070 | ||
1071 | va_start (ap, gmsgid); | |
1072 | diagnostic_set_info (&diagnostic, gmsgid, &ap, loc, DK_ERROR); | |
1073 | report_diagnostic (&diagnostic); | |
1074 | va_end (ap); | |
1075 | } | |
1076 | ||
59650e48 ZW |
1077 | /* "Sorry, not implemented." Use for a language feature which is |
1078 | required by the relevant specification but not implemented by GCC. | |
1079 | An object file will not be produced. */ | |
93d87cb1 | 1080 | void |
4b794eaf | 1081 | sorry (const char *gmsgid, ...) |
93d87cb1 | 1082 | { |
59650e48 | 1083 | diagnostic_info diagnostic; |
e34d07f2 | 1084 | va_list ap; |
fbfc1192 | 1085 | |
4b794eaf JJ |
1086 | va_start (ap, gmsgid); |
1087 | diagnostic_set_info (&diagnostic, gmsgid, &ap, input_location, DK_SORRY); | |
9804f5fb | 1088 | report_diagnostic (&diagnostic); |
e34d07f2 | 1089 | va_end (ap); |
59650e48 | 1090 | } |
43db5b3c | 1091 | |
1da2ed5f JM |
1092 | /* Return true if an error or a "sorry" has been seen. Various |
1093 | processing is disabled after errors. */ | |
1094 | bool | |
1095 | seen_error (void) | |
1096 | { | |
1097 | return errorcount || sorrycount; | |
1098 | } | |
1099 | ||
59650e48 ZW |
1100 | /* An error which is severe enough that we make no attempt to |
1101 | continue. Do not use this for internal consistency checks; that's | |
1102 | internal_error. Use of this function should be rare. */ | |
1103 | void | |
4b794eaf | 1104 | fatal_error (const char *gmsgid, ...) |
fbfc1192 | 1105 | { |
59650e48 | 1106 | diagnostic_info diagnostic; |
e34d07f2 | 1107 | va_list ap; |
fbfc1192 | 1108 | |
4b794eaf JJ |
1109 | va_start (ap, gmsgid); |
1110 | diagnostic_set_info (&diagnostic, gmsgid, &ap, input_location, DK_FATAL); | |
59650e48 | 1111 | report_diagnostic (&diagnostic); |
e34d07f2 | 1112 | va_end (ap); |
59650e48 | 1113 | |
d5706a1e | 1114 | gcc_unreachable (); |
fbfc1192 ZW |
1115 | } |
1116 | ||
59650e48 ZW |
1117 | /* An internal consistency check has failed. We make no attempt to |
1118 | continue. Note that unless there is debugging value to be had from | |
1119 | a more specific message, or some other good reason, you should use | |
1120 | abort () instead of calling this function directly. */ | |
1121 | void | |
4b794eaf | 1122 | internal_error (const char *gmsgid, ...) |
fbfc1192 | 1123 | { |
59650e48 | 1124 | diagnostic_info diagnostic; |
e34d07f2 | 1125 | va_list ap; |
fbfc1192 | 1126 | |
4b794eaf JJ |
1127 | va_start (ap, gmsgid); |
1128 | diagnostic_set_info (&diagnostic, gmsgid, &ap, input_location, DK_ICE); | |
59650e48 | 1129 | report_diagnostic (&diagnostic); |
e34d07f2 | 1130 | va_end (ap); |
fbfc1192 | 1131 | |
d5706a1e | 1132 | gcc_unreachable (); |
fbfc1192 | 1133 | } |
59650e48 | 1134 | \f |
59650e48 ZW |
1135 | /* Special case error functions. Most are implemented in terms of the |
1136 | above, or should be. */ | |
e23bd218 | 1137 | |
59650e48 ZW |
1138 | /* Print a diagnostic MSGID on FILE. This is just fprintf, except it |
1139 | runs its second argument through gettext. */ | |
04c1334c | 1140 | void |
4b794eaf | 1141 | fnotice (FILE *file, const char *cmsgid, ...) |
04c1334c | 1142 | { |
e34d07f2 | 1143 | va_list ap; |
04c1334c | 1144 | |
4b794eaf JJ |
1145 | va_start (ap, cmsgid); |
1146 | vfprintf (file, _(cmsgid), ap); | |
e34d07f2 | 1147 | va_end (ap); |
04c1334c GDR |
1148 | } |
1149 | ||
59650e48 ZW |
1150 | /* Inform the user that an error occurred while trying to report some |
1151 | other error. This indicates catastrophic internal inconsistencies, | |
1152 | so give up now. But do try to flush out the previous error. | |
1153 | This mustn't use internal_error, that will cause infinite recursion. */ | |
1154 | ||
1155 | static void | |
79a490a9 | 1156 | error_recursion (diagnostic_context *context) |
59650e48 | 1157 | { |
d5706a1e ZW |
1158 | diagnostic_info diagnostic; |
1159 | ||
59650e48 | 1160 | if (context->lock < 3) |
f8923f7e | 1161 | pp_newline_and_flush (context->printer); |
59650e48 ZW |
1162 | |
1163 | fnotice (stderr, | |
1164 | "Internal compiler error: Error reporting routines re-entered.\n"); | |
d5706a1e ZW |
1165 | |
1166 | /* Call diagnostic_action_after_output to get the "please submit a bug | |
1167 | report" message. It only looks at the kind field of diagnostic_info. */ | |
1168 | diagnostic.kind = DK_ICE; | |
1169 | diagnostic_action_after_output (context, &diagnostic); | |
1170 | ||
1171 | /* Do not use gcc_unreachable here; that goes through internal_error | |
1172 | and therefore would cause infinite recursion. */ | |
1173 | real_abort (); | |
59650e48 ZW |
1174 | } |
1175 | ||
1176 | /* Report an internal compiler error in a friendly manner. This is | |
1177 | the function that gets called upon use of abort() in the source | |
1178 | code generally, thanks to a special macro. */ | |
1179 | ||
1180 | void | |
79a490a9 | 1181 | fancy_abort (const char *file, int line, const char *function) |
59650e48 ZW |
1182 | { |
1183 | internal_error ("in %s, at %s:%d", function, trim_filename (file), line); | |
1184 | } | |
1185 | ||
886e0865 GK |
1186 | /* Really call the system 'abort'. This has to go right at the end of |
1187 | this file, so that there are no functions after it that call abort | |
1188 | and get the system abort instead of our macro. */ | |
1189 | #undef abort | |
79a490a9 AJ |
1190 | static void |
1191 | real_abort (void) | |
886e0865 GK |
1192 | { |
1193 | abort (); | |
1194 | } |