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25e2ffe1 | 1 | /* Language-independent diagnostic subroutines for the GNU Compiler Collection |
fbd26352 | 2 | Copyright (C) 1999-2019 Free Software Foundation, Inc. |
dfac2e0f | 3 | Contributed by Gabriel Dos Reis <gdr@codesourcery.com> |
076f8fe1 | 4 | |
f12b58b3 | 5 | This file is part of GCC. |
076f8fe1 | 6 | |
f12b58b3 | 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 | |
8c4c00c1 | 9 | Software Foundation; either version 3, or (at your option) any later |
f12b58b3 | 10 | version. |
076f8fe1 | 11 | |
f12b58b3 | 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. | |
076f8fe1 | 16 | |
17 | You should have received a copy of the GNU General Public License | |
8c4c00c1 | 18 | along with GCC; see the file COPYING3. If not see |
19 | <http://www.gnu.org/licenses/>. */ | |
076f8fe1 | 20 | |
21 | ||
9588521d | 22 | /* This file implements the language independent aspect of diagnostic |
076f8fe1 | 23 | message module. */ |
24 | ||
25 | #include "config.h" | |
076f8fe1 | 26 | #include "system.h" |
805e22b2 | 27 | #include "coretypes.h" |
af225e7d | 28 | #include "version.h" |
3f425711 | 29 | #include "demangle.h" |
076f8fe1 | 30 | #include "intl.h" |
3f425711 | 31 | #include "backtrace.h" |
993ca5a5 | 32 | #include "diagnostic.h" |
41609f8b | 33 | #include "diagnostic-color.h" |
4f99d838 | 34 | #include "diagnostic-url.h" |
40a431fa | 35 | #include "edit-context.h" |
6628b04d | 36 | #include "selftest.h" |
fd3a7b2d | 37 | #include "selftest-diagnostic.h" |
a02d8e72 | 38 | #include "opts.h" |
076f8fe1 | 39 | |
de96a063 | 40 | #ifdef HAVE_TERMIOS_H |
41 | # include <termios.h> | |
42 | #endif | |
43 | ||
44 | #ifdef GWINSZ_IN_SYS_IOCTL | |
45 | # include <sys/ioctl.h> | |
46 | #endif | |
47 | ||
62c34df8 | 48 | /* Disable warnings about quoting issues in the pp_xxx calls below |
49 | that (intentionally) don't follow GCC diagnostic conventions. */ | |
50 | #if __GNUC__ >= 10 | |
51 | # pragma GCC diagnostic push | |
52 | # pragma GCC diagnostic ignored "-Wformat-diag" | |
53 | #endif | |
54 | ||
2c2efebb | 55 | #define pedantic_warning_kind(DC) \ |
56 | ((DC)->pedantic_errors ? DK_ERROR : DK_WARNING) | |
57 | #define permissive_error_kind(DC) ((DC)->permissive ? DK_WARNING : DK_ERROR) | |
3c6a9715 | 58 | #define permissive_error_option(DC) ((DC)->opt_permissive) |
d252af3e | 59 | |
6312a35e | 60 | /* Prototypes. */ |
a262d9cd | 61 | static bool diagnostic_impl (rich_location *, int, const char *, |
62 | va_list *, diagnostic_t) ATTRIBUTE_GCC_DIAG(3,0); | |
f4e3e4b1 | 63 | static bool diagnostic_n_impl (rich_location *, int, unsigned HOST_WIDE_INT, |
64 | const char *, const char *, va_list *, | |
a262d9cd | 65 | diagnostic_t) ATTRIBUTE_GCC_DIAG(5,0); |
c43f5e5c | 66 | |
d598ad0d | 67 | static void error_recursion (diagnostic_context *) ATTRIBUTE_NORETURN; |
d598ad0d | 68 | static void real_abort (void) ATTRIBUTE_NORETURN; |
19fafbd3 | 69 | |
852f689e | 70 | /* Name of program invoked, sans directories. */ |
71 | ||
72 | const char *progname; | |
73 | ||
ce601f29 | 74 | /* A diagnostic_context surrogate for stderr. */ |
75 | static diagnostic_context global_diagnostic_context; | |
76 | diagnostic_context *global_dc = &global_diagnostic_context; | |
076f8fe1 | 77 | \f |
2faf8f38 | 78 | /* Return a malloc'd string containing MSG formatted a la printf. The |
79 | caller is responsible for freeing the memory. */ | |
dc8078a3 | 80 | char * |
ee582a61 | 81 | build_message_string (const char *msg, ...) |
104d5c0c | 82 | { |
2f5d30d9 | 83 | char *str; |
ee582a61 | 84 | va_list ap; |
104d5c0c | 85 | |
ee582a61 | 86 | va_start (ap, msg); |
5e9ac72e | 87 | str = xvasprintf (msg, ap); |
ee582a61 | 88 | va_end (ap); |
104d5c0c | 89 | |
90 | return str; | |
91 | } | |
92 | ||
d716ce75 | 93 | /* Same as diagnostic_build_prefix, but only the source FILE is given. */ |
b9995fca | 94 | char * |
2cafe211 | 95 | file_name_as_prefix (diagnostic_context *context, const char *f) |
b9995fca | 96 | { |
2cafe211 | 97 | const char *locus_cs |
98 | = colorize_start (pp_show_color (context->printer), "locus"); | |
99 | const char *locus_ce = colorize_stop (pp_show_color (context->printer)); | |
100 | return build_message_string ("%s%s:%s ", locus_cs, f, locus_ce); | |
b9995fca | 101 | } |
102 | ||
25e2ffe1 | 103 | |
076f8fe1 | 104 | \f |
5a983084 | 105 | /* Return the value of the getenv("COLUMNS") as an integer. If the |
de96a063 | 106 | value is not set to a positive integer, use ioctl to get the |
107 | terminal width. If it fails, return INT_MAX. */ | |
108 | int | |
109 | get_terminal_width (void) | |
5a983084 | 110 | { |
111 | const char * s = getenv ("COLUMNS"); | |
112 | if (s != NULL) { | |
113 | int n = atoi (s); | |
114 | if (n > 0) | |
115 | return n; | |
116 | } | |
de96a063 | 117 | |
118 | #ifdef TIOCGWINSZ | |
119 | struct winsize w; | |
120 | w.ws_col = 0; | |
121 | if (ioctl (0, TIOCGWINSZ, &w) == 0 && w.ws_col > 0) | |
122 | return w.ws_col; | |
123 | #endif | |
124 | ||
5a983084 | 125 | return INT_MAX; |
126 | } | |
127 | ||
128 | /* Set caret_max_width to value. */ | |
129 | void | |
130 | diagnostic_set_caret_max_width (diagnostic_context *context, int value) | |
131 | { | |
132 | /* One minus to account for the leading empty space. */ | |
133 | value = value ? value - 1 | |
6f07f480 | 134 | : (isatty (fileno (pp_buffer (context->printer)->stream)) |
de96a063 | 135 | ? get_terminal_width () - 1: INT_MAX); |
5a983084 | 136 | |
137 | if (value <= 0) | |
138 | value = INT_MAX; | |
139 | ||
140 | context->caret_max_width = value; | |
141 | } | |
142 | ||
1bcc5c64 | 143 | /* Default implementation of final_cb. */ |
144 | ||
145 | static void | |
146 | default_diagnostic_final_cb (diagnostic_context *context) | |
147 | { | |
148 | /* Some of the errors may actually have been warnings. */ | |
149 | if (diagnostic_kind_count (context, DK_WERROR)) | |
150 | { | |
151 | /* -Werror was given. */ | |
152 | if (context->warning_as_error_requested) | |
153 | pp_verbatim (context->printer, | |
154 | _("%s: all warnings being treated as errors"), | |
155 | progname); | |
156 | /* At least one -Werror= was given. */ | |
157 | else | |
158 | pp_verbatim (context->printer, | |
159 | _("%s: some warnings being treated as errors"), | |
160 | progname); | |
161 | pp_newline_and_flush (context->printer); | |
162 | } | |
163 | } | |
164 | ||
25e2ffe1 | 165 | /* Initialize the diagnostic message outputting machinery. */ |
166 | void | |
3c6a9715 | 167 | diagnostic_initialize (diagnostic_context *context, int n_opts) |
25e2ffe1 | 168 | { |
3c6a9715 | 169 | int i; |
170 | ||
aa6db498 | 171 | /* Allocate a basic pretty-printer. Clients will replace this a |
172 | much more elaborated pretty-printer if they wish. */ | |
4c36ffe6 | 173 | context->printer = XNEW (pretty_printer); |
eed6bc21 | 174 | new (context->printer) pretty_printer (); |
25e2ffe1 | 175 | |
aa6db498 | 176 | memset (context->diagnostic_count, 0, sizeof context->diagnostic_count); |
096f40ca | 177 | context->warning_as_error_requested = false; |
3c6a9715 | 178 | context->n_opts = n_opts; |
179 | context->classify_diagnostic = XNEWVEC (diagnostic_t, n_opts); | |
180 | for (i = 0; i < n_opts; i++) | |
181 | context->classify_diagnostic[i] = DK_UNSPECIFIED; | |
5a983084 | 182 | context->show_caret = false; |
183 | diagnostic_set_caret_max_width (context, pp_line_cutoff (context->printer)); | |
d6dd1b60 | 184 | for (i = 0; i < rich_location::STATICALLY_ALLOCATED_RANGES; i++) |
389a9009 | 185 | context->caret_chars[i] = '^'; |
b0932b2f | 186 | context->show_option_requested = false; |
aa6db498 | 187 | context->abort_on_error = false; |
3c6a9715 | 188 | context->show_column = false; |
189 | context->pedantic_errors = false; | |
190 | context->permissive = false; | |
191 | context->opt_permissive = 0; | |
192 | context->fatal_errors = false; | |
5ae82d58 | 193 | context->dc_inhibit_warnings = false; |
194 | context->dc_warn_system_headers = false; | |
566d7c74 | 195 | context->max_errors = 0; |
aa6db498 | 196 | context->internal_error = NULL; |
25e2ffe1 | 197 | diagnostic_starter (context) = default_diagnostic_starter; |
aec1f4bd | 198 | context->start_span = default_diagnostic_start_span_fn; |
25e2ffe1 | 199 | diagnostic_finalizer (context) = default_diagnostic_finalizer; |
3c6a9715 | 200 | context->option_enabled = NULL; |
2c5d2e39 | 201 | context->option_state = NULL; |
3c6a9715 | 202 | context->option_name = NULL; |
cf955564 | 203 | context->get_option_url = NULL; |
d834564a | 204 | context->last_location = UNKNOWN_LOCATION; |
aa6db498 | 205 | context->last_module = 0; |
ce084dfc | 206 | context->x_data = NULL; |
aa6db498 | 207 | context->lock = 0; |
16b4d5bb | 208 | context->inhibit_notes_p = false; |
48a7392b | 209 | context->colorize_source_p = false; |
b7bb5264 | 210 | context->show_labels_p = false; |
ff7410b8 | 211 | context->show_line_numbers_p = false; |
31087b7e | 212 | context->min_margin_width = 0; |
48a7392b | 213 | context->show_ruler_p = false; |
214 | context->parseable_fixits_p = false; | |
40a431fa | 215 | context->edit_context_ptr = NULL; |
bc35ef65 | 216 | context->diagnostic_group_nesting_depth = 0; |
217 | context->diagnostic_group_emission_count = 0; | |
218 | context->begin_group_cb = NULL; | |
219 | context->end_group_cb = NULL; | |
1bcc5c64 | 220 | context->final_cb = default_diagnostic_final_cb; |
25e2ffe1 | 221 | } |
222 | ||
9b11544d | 223 | /* Maybe initialize the color support. We require clients to do this |
224 | explicitly, since most clients don't want color. When called | |
225 | without a VALUE, it initializes with DIAGNOSTICS_COLOR_DEFAULT. */ | |
226 | ||
227 | void | |
228 | diagnostic_color_init (diagnostic_context *context, int value /*= -1 */) | |
229 | { | |
230 | /* value == -1 is the default value. */ | |
231 | if (value < 0) | |
232 | { | |
233 | /* If DIAGNOSTICS_COLOR_DEFAULT is -1, default to | |
234 | -fdiagnostics-color=auto if GCC_COLORS is in the environment, | |
235 | otherwise default to -fdiagnostics-color=never, for other | |
236 | values default to that | |
237 | -fdiagnostics-color={never,auto,always}. */ | |
238 | if (DIAGNOSTICS_COLOR_DEFAULT == -1) | |
239 | { | |
240 | if (!getenv ("GCC_COLORS")) | |
241 | return; | |
242 | value = DIAGNOSTICS_COLOR_AUTO; | |
243 | } | |
244 | else | |
245 | value = DIAGNOSTICS_COLOR_DEFAULT; | |
246 | } | |
247 | pp_show_color (context->printer) | |
248 | = colorize_init ((diagnostic_color_rule_t) value); | |
249 | } | |
250 | ||
4f99d838 | 251 | /* Initialize URL support within CONTEXT based on VALUE, handling "auto". */ |
252 | ||
253 | void | |
254 | diagnostic_urls_init (diagnostic_context *context, int value /*= -1 */) | |
255 | { | |
256 | if (value < 0) | |
257 | value = DIAGNOSTICS_COLOR_DEFAULT; | |
258 | ||
259 | context->printer->show_urls | |
260 | = diagnostic_urls_enabled_p ((diagnostic_url_rule_t) value); | |
261 | } | |
262 | ||
543725f3 | 263 | /* Do any cleaning up required after the last diagnostic is emitted. */ |
264 | ||
265 | void | |
266 | diagnostic_finish (diagnostic_context *context) | |
267 | { | |
1bcc5c64 | 268 | if (context->final_cb) |
269 | context->final_cb (context); | |
ffc2c526 | 270 | |
271 | diagnostic_file_cache_fini (); | |
415309e2 | 272 | |
273 | XDELETEVEC (context->classify_diagnostic); | |
274 | context->classify_diagnostic = NULL; | |
275 | ||
276 | /* diagnostic_initialize allocates context->printer using XNEW | |
277 | and placement-new. */ | |
278 | context->printer->~pretty_printer (); | |
279 | XDELETE (context->printer); | |
280 | context->printer = NULL; | |
40a431fa | 281 | |
282 | if (context->edit_context_ptr) | |
283 | { | |
284 | delete context->edit_context_ptr; | |
285 | context->edit_context_ptr = NULL; | |
286 | } | |
543725f3 | 287 | } |
288 | ||
eb0d20b7 | 289 | /* Initialize DIAGNOSTIC, where the message MSG has already been |
290 | translated. */ | |
25e2ffe1 | 291 | void |
eb0d20b7 | 292 | diagnostic_set_info_translated (diagnostic_info *diagnostic, const char *msg, |
f0479000 | 293 | va_list *args, rich_location *richloc, |
eb0d20b7 | 294 | diagnostic_t kind) |
25e2ffe1 | 295 | { |
f0479000 | 296 | gcc_assert (richloc); |
d07c9932 | 297 | diagnostic->message.err_no = errno; |
25e2ffe1 | 298 | diagnostic->message.args_ptr = args; |
eb0d20b7 | 299 | diagnostic->message.format_spec = msg; |
f0479000 | 300 | diagnostic->message.m_richloc = richloc; |
301 | diagnostic->richloc = richloc; | |
25e2ffe1 | 302 | diagnostic->kind = kind; |
efb9d9ee | 303 | diagnostic->option_index = 0; |
25e2ffe1 | 304 | } |
305 | ||
eb0d20b7 | 306 | /* Initialize DIAGNOSTIC, where the message GMSGID has not yet been |
307 | translated. */ | |
308 | void | |
309 | diagnostic_set_info (diagnostic_info *diagnostic, const char *gmsgid, | |
f0479000 | 310 | va_list *args, rich_location *richloc, |
eb0d20b7 | 311 | diagnostic_t kind) |
312 | { | |
f0479000 | 313 | gcc_assert (richloc); |
314 | diagnostic_set_info_translated (diagnostic, _(gmsgid), args, richloc, kind); | |
315 | } | |
316 | ||
317 | static const char *const diagnostic_kind_color[] = { | |
318 | #define DEFINE_DIAGNOSTIC_KIND(K, T, C) (C), | |
319 | #include "diagnostic.def" | |
320 | #undef DEFINE_DIAGNOSTIC_KIND | |
321 | NULL | |
322 | }; | |
323 | ||
324 | /* Get a color name for diagnostics of type KIND | |
325 | Result could be NULL. */ | |
326 | ||
327 | const char * | |
328 | diagnostic_get_color_for_kind (diagnostic_t kind) | |
329 | { | |
330 | return diagnostic_kind_color[kind]; | |
eb0d20b7 | 331 | } |
332 | ||
786bf3ad | 333 | /* Return a formatted line and column ':%line:%column'. Elided if |
334 | zero. The result is a statically allocated buffer. */ | |
335 | ||
336 | static const char * | |
337 | maybe_line_and_column (int line, int col) | |
338 | { | |
339 | static char result[32]; | |
340 | ||
341 | if (line) | |
342 | { | |
343 | size_t l = snprintf (result, sizeof (result), | |
344 | col ? ":%d:%d" : ":%d", line, col); | |
345 | gcc_checking_assert (l < sizeof (result)); | |
346 | } | |
347 | else | |
348 | result[0] = 0; | |
349 | return result; | |
350 | } | |
351 | ||
aec1f4bd | 352 | /* Return a malloc'd string describing a location e.g. "foo.c:42:10". |
353 | The caller is responsible for freeing the memory. */ | |
354 | ||
355 | static char * | |
356 | diagnostic_get_location_text (diagnostic_context *context, | |
357 | expanded_location s) | |
358 | { | |
359 | pretty_printer *pp = context->printer; | |
360 | const char *locus_cs = colorize_start (pp_show_color (pp), "locus"); | |
361 | const char *locus_ce = colorize_stop (pp_show_color (pp)); | |
786bf3ad | 362 | const char *file = s.file ? s.file : progname; |
363 | int line = strcmp (file, N_("<built-in>")) ? s.line : 0; | |
364 | int col = context->show_column ? s.column : 0; | |
aec1f4bd | 365 | |
786bf3ad | 366 | const char *line_col = maybe_line_and_column (line, col); |
367 | return build_message_string ("%s%s%s:%s", locus_cs, file, | |
368 | line_col, locus_ce); | |
aec1f4bd | 369 | } |
370 | ||
371 | /* Return a malloc'd string describing a location and the severity of the | |
372 | diagnostic, e.g. "foo.c:42:10: error: ". The caller is responsible for | |
373 | freeing the memory. */ | |
25e2ffe1 | 374 | char * |
2c2efebb | 375 | diagnostic_build_prefix (diagnostic_context *context, |
ff213692 | 376 | const diagnostic_info *diagnostic) |
25e2ffe1 | 377 | { |
11a6a4d0 | 378 | static const char *const diagnostic_kind_text[] = { |
41609f8b | 379 | #define DEFINE_DIAGNOSTIC_KIND(K, T, C) (T), |
479f88cd | 380 | #include "diagnostic.def" |
381 | #undef DEFINE_DIAGNOSTIC_KIND | |
382 | "must-not-happen" | |
383 | }; | |
aa47f95a | 384 | gcc_assert (diagnostic->kind < DK_LAST_DIAGNOSTIC_KIND); |
385 | ||
5cf56417 | 386 | const char *text = _(diagnostic_kind_text[diagnostic->kind]); |
41609f8b | 387 | const char *text_cs = "", *text_ce = ""; |
41609f8b | 388 | pretty_printer *pp = context->printer; |
389 | ||
390 | if (diagnostic_kind_color[diagnostic->kind]) | |
391 | { | |
392 | text_cs = colorize_start (pp_show_color (pp), | |
393 | diagnostic_kind_color[diagnostic->kind]); | |
394 | text_ce = colorize_stop (pp_show_color (pp)); | |
395 | } | |
41609f8b | 396 | |
aa47f95a | 397 | expanded_location s = diagnostic_expand_location (diagnostic); |
aec1f4bd | 398 | char *location_text = diagnostic_get_location_text (context, s); |
399 | ||
400 | char *result = build_message_string ("%s %s%s%s", location_text, | |
401 | text_cs, text, text_ce); | |
402 | free (location_text); | |
403 | return result; | |
25e2ffe1 | 404 | } |
405 | ||
3f425711 | 406 | /* Functions at which to stop the backtrace print. It's not |
407 | particularly helpful to print the callers of these functions. */ | |
408 | ||
409 | static const char * const bt_stop[] = | |
410 | { | |
411 | "main", | |
415309e2 | 412 | "toplev::main", |
3f425711 | 413 | "execute_one_pass", |
414 | "compile_file", | |
415 | }; | |
416 | ||
417 | /* A callback function passed to the backtrace_full function. */ | |
418 | ||
419 | static int | |
420 | bt_callback (void *data, uintptr_t pc, const char *filename, int lineno, | |
421 | const char *function) | |
422 | { | |
423 | int *pcount = (int *) data; | |
424 | ||
425 | /* If we don't have any useful information, don't print | |
426 | anything. */ | |
427 | if (filename == NULL && function == NULL) | |
428 | return 0; | |
429 | ||
430 | /* Skip functions in diagnostic.c. */ | |
431 | if (*pcount == 0 | |
432 | && filename != NULL | |
9af5ce0c | 433 | && strcmp (lbasename (filename), "diagnostic.c") == 0) |
3f425711 | 434 | return 0; |
435 | ||
436 | /* Print up to 20 functions. We could make this a --param, but | |
437 | since this is only for debugging just use a constant for now. */ | |
438 | if (*pcount >= 20) | |
439 | { | |
440 | /* Returning a non-zero value stops the backtrace. */ | |
441 | return 1; | |
442 | } | |
443 | ++*pcount; | |
444 | ||
445 | char *alc = NULL; | |
446 | if (function != NULL) | |
447 | { | |
448 | char *str = cplus_demangle_v3 (function, | |
449 | (DMGL_VERBOSE | DMGL_ANSI | |
450 | | DMGL_GNU_V3 | DMGL_PARAMS)); | |
451 | if (str != NULL) | |
452 | { | |
453 | alc = str; | |
454 | function = str; | |
455 | } | |
456 | ||
457 | for (size_t i = 0; i < ARRAY_SIZE (bt_stop); ++i) | |
458 | { | |
459 | size_t len = strlen (bt_stop[i]); | |
460 | if (strncmp (function, bt_stop[i], len) == 0 | |
461 | && (function[len] == '\0' || function[len] == '(')) | |
462 | { | |
463 | if (alc != NULL) | |
464 | free (alc); | |
465 | /* Returning a non-zero value stops the backtrace. */ | |
466 | return 1; | |
467 | } | |
468 | } | |
469 | } | |
470 | ||
471 | fprintf (stderr, "0x%lx %s\n\t%s:%d\n", | |
7de0a5e4 | 472 | (unsigned long) pc, |
3f425711 | 473 | function == NULL ? "???" : function, |
474 | filename == NULL ? "???" : filename, | |
475 | lineno); | |
476 | ||
477 | if (alc != NULL) | |
478 | free (alc); | |
479 | ||
480 | return 0; | |
481 | } | |
482 | ||
483 | /* A callback function passed to the backtrace_full function. This is | |
484 | called if backtrace_full has an error. */ | |
485 | ||
486 | static void | |
487 | bt_err_callback (void *data ATTRIBUTE_UNUSED, const char *msg, int errnum) | |
488 | { | |
489 | if (errnum < 0) | |
490 | { | |
491 | /* This means that no debug info was available. Just quietly | |
492 | skip printing backtrace info. */ | |
493 | return; | |
494 | } | |
495 | fprintf (stderr, "%s%s%s\n", msg, errnum == 0 ? "" : ": ", | |
496 | errnum == 0 ? "" : xstrerror (errnum)); | |
497 | } | |
498 | ||
bd257a76 | 499 | /* Check if we've met the maximum error limit, and if so fatally exit |
500 | with a message. CONTEXT is the context to check, and FLUSH | |
501 | indicates whether a diagnostic_finish call is needed. */ | |
502 | ||
503 | void | |
504 | diagnostic_check_max_errors (diagnostic_context *context, bool flush) | |
505 | { | |
506 | if (!context->max_errors) | |
507 | return; | |
508 | ||
509 | int count = (diagnostic_kind_count (context, DK_ERROR) | |
510 | + diagnostic_kind_count (context, DK_SORRY) | |
511 | + diagnostic_kind_count (context, DK_WERROR)); | |
512 | ||
513 | if (count >= context->max_errors) | |
514 | { | |
515 | fnotice (stderr, | |
516 | "compilation terminated due to -fmax-errors=%u.\n", | |
517 | context->max_errors); | |
518 | if (flush) | |
519 | diagnostic_finish (context); | |
520 | exit (FATAL_EXIT_CODE); | |
521 | } | |
522 | } | |
523 | ||
78323b05 | 524 | /* Take any action which is expected to happen after the diagnostic |
525 | is written out. This function does not always return. */ | |
716da296 | 526 | void |
d598ad0d | 527 | diagnostic_action_after_output (diagnostic_context *context, |
716da296 | 528 | diagnostic_t diag_kind) |
78323b05 | 529 | { |
716da296 | 530 | switch (diag_kind) |
78323b05 | 531 | { |
532 | case DK_DEBUG: | |
533 | case DK_NOTE: | |
534 | case DK_ANACHRONISM: | |
535 | case DK_WARNING: | |
536 | break; | |
537 | ||
538 | case DK_ERROR: | |
539 | case DK_SORRY: | |
540 | if (context->abort_on_error) | |
541 | real_abort (); | |
2c2efebb | 542 | if (context->fatal_errors) |
295acf4f | 543 | { |
544 | fnotice (stderr, "compilation terminated due to -Wfatal-errors.\n"); | |
543725f3 | 545 | diagnostic_finish (context); |
295acf4f | 546 | exit (FATAL_EXIT_CODE); |
547 | } | |
78323b05 | 548 | break; |
549 | ||
550 | case DK_ICE: | |
9d7131bf | 551 | case DK_ICE_NOBT: |
3f425711 | 552 | { |
9d7131bf | 553 | struct backtrace_state *state = NULL; |
554 | if (diag_kind == DK_ICE) | |
555 | state = backtrace_create_state (NULL, 0, bt_err_callback, NULL); | |
3f425711 | 556 | int count = 0; |
557 | if (state != NULL) | |
558 | backtrace_full (state, 2, bt_callback, bt_err_callback, | |
559 | (void *) &count); | |
560 | ||
561 | if (context->abort_on_error) | |
562 | real_abort (); | |
563 | ||
564 | fnotice (stderr, "Please submit a full bug report,\n" | |
565 | "with preprocessed source if appropriate.\n"); | |
566 | if (count > 0) | |
567 | fnotice (stderr, | |
568 | ("Please include the complete backtrace " | |
569 | "with any bug report.\n")); | |
570 | fnotice (stderr, "See %s for instructions.\n", bug_report_url); | |
78323b05 | 571 | |
3f425711 | 572 | exit (ICE_EXIT_CODE); |
573 | } | |
78323b05 | 574 | |
575 | case DK_FATAL: | |
576 | if (context->abort_on_error) | |
577 | real_abort (); | |
543725f3 | 578 | diagnostic_finish (context); |
78323b05 | 579 | fnotice (stderr, "compilation terminated.\n"); |
580 | exit (FATAL_EXIT_CODE); | |
581 | ||
582 | default: | |
583fa9e0 | 583 | gcc_unreachable (); |
78323b05 | 584 | } |
585 | } | |
586 | ||
29c64b33 | 587 | /* True if the last module or file in which a diagnostic was reported is |
588 | different from the current one. */ | |
589 | ||
590 | static bool | |
591 | last_module_changed_p (diagnostic_context *context, | |
592 | const line_map_ordinary *map) | |
593 | { | |
594 | return context->last_module != map; | |
595 | } | |
596 | ||
597 | /* Remember the current module or file as being the last one in which we | |
598 | report a diagnostic. */ | |
599 | ||
600 | static void | |
601 | set_last_module (diagnostic_context *context, const line_map_ordinary *map) | |
602 | { | |
603 | context->last_module = map; | |
604 | } | |
605 | ||
076f8fe1 | 606 | void |
3de02a0f | 607 | diagnostic_report_current_module (diagnostic_context *context, location_t where) |
076f8fe1 | 608 | { |
551e34da | 609 | const line_map_ordinary *map = NULL; |
076f8fe1 | 610 | |
aa6db498 | 611 | if (pp_needs_newline (context->printer)) |
2faf8f38 | 612 | { |
aa6db498 | 613 | pp_newline (context->printer); |
614 | pp_needs_newline (context->printer) = false; | |
2faf8f38 | 615 | } |
076f8fe1 | 616 | |
3de02a0f | 617 | if (where <= BUILTINS_LOCATION) |
26cb3d1c | 618 | return; |
619 | ||
3de02a0f | 620 | linemap_resolve_location (line_table, where, |
621 | LRK_MACRO_DEFINITION_LOCATION, | |
622 | &map); | |
623 | ||
29c64b33 | 624 | if (map && last_module_changed_p (context, map)) |
2faf8f38 | 625 | { |
29c64b33 | 626 | set_last_module (context, map); |
26cb3d1c | 627 | if (! MAIN_FILE_P (map)) |
7bd3dcc4 | 628 | { |
917dad34 | 629 | bool first = true; |
630 | do | |
26cb3d1c | 631 | { |
03410c5e | 632 | where = linemap_included_from (map); |
633 | map = linemap_included_from_linemap (line_table, map); | |
917dad34 | 634 | const char *line_col |
03410c5e | 635 | = maybe_line_and_column (SOURCE_LINE (map, where), |
917dad34 | 636 | first && context->show_column |
637 | ? SOURCE_COLUMN (map, where) : 0); | |
638 | static const char *const msgs[] = | |
639 | { | |
640 | N_("In file included from"), | |
641 | N_(" from"), | |
642 | }; | |
643 | unsigned index = !first; | |
644 | pp_verbatim (context->printer, "%s%s %r%s%s%R", | |
645 | first ? "" : ",\n", _(msgs[index]), | |
646 | "locus", LINEMAP_FILE (map), line_col); | |
647 | first = false; | |
26cb3d1c | 648 | } |
917dad34 | 649 | while (! MAIN_FILE_P (map)); |
26cb3d1c | 650 | pp_verbatim (context->printer, ":"); |
651 | pp_newline (context->printer); | |
7bd3dcc4 | 652 | } |
2faf8f38 | 653 | } |
654 | } | |
f060a027 | 655 | |
34e5cced | 656 | void |
d598ad0d | 657 | default_diagnostic_starter (diagnostic_context *context, |
658 | diagnostic_info *diagnostic) | |
076f8fe1 | 659 | { |
389a9009 | 660 | diagnostic_report_current_module (context, diagnostic_location (diagnostic)); |
2c2efebb | 661 | pp_set_prefix (context->printer, diagnostic_build_prefix (context, |
662 | diagnostic)); | |
2faf8f38 | 663 | } |
076f8fe1 | 664 | |
aec1f4bd | 665 | void |
666 | default_diagnostic_start_span_fn (diagnostic_context *context, | |
667 | expanded_location exploc) | |
668 | { | |
287abdae | 669 | char *text = diagnostic_get_location_text (context, exploc); |
670 | pp_string (context->printer, text); | |
671 | free (text); | |
aec1f4bd | 672 | pp_newline (context->printer); |
673 | } | |
674 | ||
34e5cced | 675 | void |
399d4f80 | 676 | default_diagnostic_finalizer (diagnostic_context *context, |
1bcc5c64 | 677 | diagnostic_info *diagnostic, |
678 | diagnostic_t) | |
2faf8f38 | 679 | { |
b2902434 | 680 | char *saved_prefix = pp_take_prefix (context->printer); |
681 | pp_set_prefix (context->printer, NULL); | |
48a7392b | 682 | diagnostic_show_locus (context, diagnostic->richloc, diagnostic->kind); |
b2902434 | 683 | pp_set_prefix (context->printer, saved_prefix); |
3752e5b1 | 684 | pp_flush (context->printer); |
076f8fe1 | 685 | } |
686 | ||
76f02516 | 687 | /* Interface to specify diagnostic kind overrides. Returns the |
688 | previous setting, or DK_UNSPECIFIED if the parameters are out of | |
af776050 | 689 | range. If OPTION_INDEX is zero, the new setting is for all the |
690 | diagnostics. */ | |
76f02516 | 691 | diagnostic_t |
692 | diagnostic_classify_diagnostic (diagnostic_context *context, | |
693 | int option_index, | |
0955be65 | 694 | diagnostic_t new_kind, |
695 | location_t where) | |
76f02516 | 696 | { |
697 | diagnostic_t old_kind; | |
698 | ||
af776050 | 699 | if (option_index < 0 |
3c6a9715 | 700 | || option_index >= context->n_opts |
76f02516 | 701 | || new_kind >= DK_LAST_DIAGNOSTIC_KIND) |
702 | return DK_UNSPECIFIED; | |
703 | ||
704 | old_kind = context->classify_diagnostic[option_index]; | |
0955be65 | 705 | |
706 | /* Handle pragmas separately, since we need to keep track of *where* | |
707 | the pragmas were. */ | |
708 | if (where != UNKNOWN_LOCATION) | |
709 | { | |
710 | int i; | |
711 | ||
e472ce46 | 712 | /* Record the command-line status, so we can reset it back on DK_POP. */ |
713 | if (old_kind == DK_UNSPECIFIED) | |
714 | { | |
0a489f51 | 715 | old_kind = !context->option_enabled (option_index, |
a02d8e72 | 716 | context->lang_mask, |
0a489f51 | 717 | context->option_state) |
718 | ? DK_IGNORED : (context->warning_as_error_requested | |
719 | ? DK_ERROR : DK_WARNING); | |
e472ce46 | 720 | context->classify_diagnostic[option_index] = old_kind; |
721 | } | |
722 | ||
0955be65 | 723 | for (i = context->n_classification_history - 1; i >= 0; i --) |
724 | if (context->classification_history[i].option == option_index) | |
725 | { | |
726 | old_kind = context->classification_history[i].kind; | |
727 | break; | |
728 | } | |
729 | ||
730 | i = context->n_classification_history; | |
731 | context->classification_history = | |
732 | (diagnostic_classification_change_t *) xrealloc (context->classification_history, (i + 1) | |
733 | * sizeof (diagnostic_classification_change_t)); | |
734 | context->classification_history[i].location = where; | |
735 | context->classification_history[i].option = option_index; | |
736 | context->classification_history[i].kind = new_kind; | |
737 | context->n_classification_history ++; | |
738 | } | |
739 | else | |
740 | context->classify_diagnostic[option_index] = new_kind; | |
741 | ||
76f02516 | 742 | return old_kind; |
743 | } | |
744 | ||
0955be65 | 745 | /* Save all diagnostic classifications in a stack. */ |
746 | void | |
747 | diagnostic_push_diagnostics (diagnostic_context *context, location_t where ATTRIBUTE_UNUSED) | |
748 | { | |
749 | context->push_list = (int *) xrealloc (context->push_list, (context->n_push + 1) * sizeof (int)); | |
750 | context->push_list[context->n_push ++] = context->n_classification_history; | |
751 | } | |
752 | ||
753 | /* Restore the topmost classification set off the stack. If the stack | |
754 | is empty, revert to the state based on command line parameters. */ | |
755 | void | |
756 | diagnostic_pop_diagnostics (diagnostic_context *context, location_t where) | |
757 | { | |
758 | int jump_to; | |
759 | int i; | |
760 | ||
761 | if (context->n_push) | |
762 | jump_to = context->push_list [-- context->n_push]; | |
763 | else | |
764 | jump_to = 0; | |
765 | ||
766 | i = context->n_classification_history; | |
767 | context->classification_history = | |
768 | (diagnostic_classification_change_t *) xrealloc (context->classification_history, (i + 1) | |
769 | * sizeof (diagnostic_classification_change_t)); | |
770 | context->classification_history[i].location = where; | |
771 | context->classification_history[i].option = jump_to; | |
772 | context->classification_history[i].kind = DK_POP; | |
773 | context->n_classification_history ++; | |
774 | } | |
775 | ||
6628b04d | 776 | /* Helper function for print_parseable_fixits. Print TEXT to PP, obeying the |
777 | escaping rules for -fdiagnostics-parseable-fixits. */ | |
778 | ||
779 | static void | |
780 | print_escaped_string (pretty_printer *pp, const char *text) | |
781 | { | |
782 | gcc_assert (pp); | |
783 | gcc_assert (text); | |
784 | ||
785 | pp_character (pp, '"'); | |
786 | for (const char *ch = text; *ch; ch++) | |
787 | { | |
788 | switch (*ch) | |
789 | { | |
790 | case '\\': | |
791 | /* Escape backslash as two backslashes. */ | |
792 | pp_string (pp, "\\\\"); | |
793 | break; | |
794 | case '\t': | |
795 | /* Escape tab as "\t". */ | |
796 | pp_string (pp, "\\t"); | |
797 | break; | |
798 | case '\n': | |
799 | /* Escape newline as "\n". */ | |
800 | pp_string (pp, "\\n"); | |
801 | break; | |
802 | case '"': | |
803 | /* Escape doublequotes as \". */ | |
804 | pp_string (pp, "\\\""); | |
805 | break; | |
806 | default: | |
807 | if (ISPRINT (*ch)) | |
808 | pp_character (pp, *ch); | |
809 | else | |
810 | /* Use octal for non-printable chars. */ | |
811 | { | |
812 | unsigned char c = (*ch & 0xff); | |
813 | pp_printf (pp, "\\%o%o%o", (c / 64), (c / 8) & 007, c & 007); | |
814 | } | |
815 | break; | |
816 | } | |
817 | } | |
818 | pp_character (pp, '"'); | |
819 | } | |
820 | ||
821 | /* Implementation of -fdiagnostics-parseable-fixits. Print a | |
822 | machine-parseable version of all fixits in RICHLOC to PP. */ | |
823 | ||
824 | static void | |
825 | print_parseable_fixits (pretty_printer *pp, rich_location *richloc) | |
826 | { | |
827 | gcc_assert (pp); | |
828 | gcc_assert (richloc); | |
829 | ||
b2902434 | 830 | char *saved_prefix = pp_take_prefix (pp); |
831 | pp_set_prefix (pp, NULL); | |
832 | ||
6628b04d | 833 | for (unsigned i = 0; i < richloc->get_num_fixit_hints (); i++) |
834 | { | |
835 | const fixit_hint *hint = richloc->get_fixit_hint (i); | |
be1e7283 | 836 | location_t start_loc = hint->get_start_loc (); |
6628b04d | 837 | expanded_location start_exploc = expand_location (start_loc); |
838 | pp_string (pp, "fix-it:"); | |
839 | print_escaped_string (pp, start_exploc.file); | |
6628b04d | 840 | /* For compatibility with clang, print as a half-open range. */ |
be1e7283 | 841 | location_t next_loc = hint->get_next_loc (); |
be45049f | 842 | expanded_location next_exploc = expand_location (next_loc); |
843 | pp_printf (pp, ":{%i:%i-%i:%i}:", | |
844 | start_exploc.line, start_exploc.column, | |
845 | next_exploc.line, next_exploc.column); | |
846 | print_escaped_string (pp, hint->get_string ()); | |
6628b04d | 847 | pp_newline (pp); |
848 | } | |
b2902434 | 849 | |
850 | pp_set_prefix (pp, saved_prefix); | |
6628b04d | 851 | } |
852 | ||
85d113d8 | 853 | /* Update the diag_class of DIAGNOSTIC based on its location |
854 | relative to any | |
855 | #pragma GCC diagnostic | |
856 | directives recorded within CONTEXT. | |
857 | ||
858 | Return the new diag_class of DIAGNOSTIC if it was updated, or | |
859 | DK_UNSPECIFIED otherwise. */ | |
860 | ||
861 | static diagnostic_t | |
862 | update_effective_level_from_pragmas (diagnostic_context *context, | |
863 | diagnostic_info *diagnostic) | |
864 | { | |
865 | diagnostic_t diag_class = DK_UNSPECIFIED; | |
866 | ||
867 | if (context->n_classification_history > 0) | |
868 | { | |
869 | location_t location = diagnostic_location (diagnostic); | |
870 | ||
871 | /* FIXME: Stupid search. Optimize later. */ | |
872 | for (int i = context->n_classification_history - 1; i >= 0; i --) | |
873 | { | |
874 | if (linemap_location_before_p | |
875 | (line_table, | |
876 | context->classification_history[i].location, | |
877 | location)) | |
878 | { | |
879 | if (context->classification_history[i].kind == (int) DK_POP) | |
880 | { | |
881 | i = context->classification_history[i].option; | |
882 | continue; | |
883 | } | |
884 | int option = context->classification_history[i].option; | |
885 | /* The option 0 is for all the diagnostics. */ | |
886 | if (option == 0 || option == diagnostic->option_index) | |
887 | { | |
888 | diag_class = context->classification_history[i].kind; | |
889 | if (diag_class != DK_UNSPECIFIED) | |
890 | diagnostic->kind = diag_class; | |
891 | break; | |
892 | } | |
893 | } | |
894 | } | |
895 | } | |
896 | ||
897 | return diag_class; | |
898 | } | |
899 | ||
fa1e6801 | 900 | /* Print any metadata about the option used to control DIAGNOSTIC to CONTEXT's |
901 | printer, e.g. " [-Werror=uninitialized]". | |
902 | Subroutine of diagnostic_report_diagnostic. */ | |
903 | ||
904 | static void | |
905 | print_option_information (diagnostic_context *context, | |
906 | const diagnostic_info *diagnostic, | |
907 | diagnostic_t orig_diag_kind) | |
908 | { | |
909 | char *option_text; | |
910 | ||
911 | option_text = context->option_name (context, diagnostic->option_index, | |
912 | orig_diag_kind, diagnostic->kind); | |
913 | ||
914 | if (option_text) | |
915 | { | |
cf955564 | 916 | char *option_url = NULL; |
917 | if (context->get_option_url) | |
918 | option_url = context->get_option_url (context, | |
919 | diagnostic->option_index); | |
fa1e6801 | 920 | pretty_printer *pp = context->printer; |
921 | pp_string (pp, " ["); | |
922 | pp_string (pp, colorize_start (pp_show_color (pp), | |
923 | diagnostic_kind_color[diagnostic->kind])); | |
cf955564 | 924 | if (option_url) |
925 | pp_begin_url (pp, option_url); | |
fa1e6801 | 926 | pp_string (pp, option_text); |
cf955564 | 927 | if (option_url) |
928 | { | |
929 | pp_end_url (pp); | |
930 | free (option_url); | |
931 | } | |
fa1e6801 | 932 | pp_string (pp, colorize_stop (pp_show_color (pp))); |
933 | pp_character (pp, ']'); | |
934 | free (option_text); | |
935 | } | |
936 | } | |
85d113d8 | 937 | |
2faf8f38 | 938 | /* Report a diagnostic message (an error or a warning) as specified by |
939 | DC. This function is *the* subroutine in terms of which front-ends | |
940 | should implement their specific diagnostic handling modules. The | |
941 | front-end independent format specifiers are exactly those described | |
48e1416a | 942 | in the documentation of output_format. |
a52d5726 | 943 | Return true if a diagnostic was printed, false otherwise. */ |
f060a027 | 944 | |
a52d5726 | 945 | bool |
d598ad0d | 946 | diagnostic_report_diagnostic (diagnostic_context *context, |
947 | diagnostic_info *diagnostic) | |
f060a027 | 948 | { |
389a9009 | 949 | location_t location = diagnostic_location (diagnostic); |
543725f3 | 950 | diagnostic_t orig_diag_kind = diagnostic->kind; |
f9a354ab | 951 | |
952 | /* Give preference to being able to inhibit warnings, before they | |
953 | get reclassified to something else. */ | |
a52d5726 | 954 | if ((diagnostic->kind == DK_WARNING || diagnostic->kind == DK_PEDWARN) |
3c6a9715 | 955 | && !diagnostic_report_warnings_p (context, location)) |
a52d5726 | 956 | return false; |
957 | ||
48e1416a | 958 | if (diagnostic->kind == DK_PEDWARN) |
543725f3 | 959 | { |
2c2efebb | 960 | diagnostic->kind = pedantic_warning_kind (context); |
543725f3 | 961 | /* We do this to avoid giving the message for -pedantic-errors. */ |
962 | orig_diag_kind = diagnostic->kind; | |
963 | } | |
16b4d5bb | 964 | |
965 | if (diagnostic->kind == DK_NOTE && context->inhibit_notes_p) | |
966 | return false; | |
48e1416a | 967 | |
583fa9e0 | 968 | if (context->lock > 0) |
969 | { | |
970 | /* If we're reporting an ICE in the middle of some other error, | |
971 | try to flush out the previous error, then let this one | |
972 | through. Don't do this more than once. */ | |
9d7131bf | 973 | if ((diagnostic->kind == DK_ICE || diagnostic->kind == DK_ICE_NOBT) |
974 | && context->lock == 1) | |
5f7f600e | 975 | pp_newline_and_flush (context->printer); |
583fa9e0 | 976 | else |
977 | error_recursion (context); | |
978 | } | |
979 | ||
f9a354ab | 980 | /* If the user requested that warnings be treated as errors, so be |
981 | it. Note that we do this before the next block so that | |
982 | individual warnings can be overridden back to warnings with | |
983 | -Wno-error=*. */ | |
984 | if (context->warning_as_error_requested | |
985 | && diagnostic->kind == DK_WARNING) | |
c59a1804 | 986 | diagnostic->kind = DK_ERROR; |
48e1416a | 987 | |
bba5a206 | 988 | if (diagnostic->option_index |
989 | && diagnostic->option_index != permissive_error_option (context)) | |
76f02516 | 990 | { |
991 | /* This tests if the user provided the appropriate -Wfoo or | |
992 | -Wno-foo option. */ | |
2c5d2e39 | 993 | if (! context->option_enabled (diagnostic->option_index, |
a02d8e72 | 994 | context->lang_mask, |
2c5d2e39 | 995 | context->option_state)) |
a52d5726 | 996 | return false; |
0955be65 | 997 | |
998 | /* This tests for #pragma diagnostic changes. */ | |
85d113d8 | 999 | diagnostic_t diag_class |
1000 | = update_effective_level_from_pragmas (context, diagnostic); | |
e917a27c | 1001 | |
76f02516 | 1002 | /* This tests if the user provided the appropriate -Werror=foo |
1003 | option. */ | |
0955be65 | 1004 | if (diag_class == DK_UNSPECIFIED |
e917a27c | 1005 | && (context->classify_diagnostic[diagnostic->option_index] |
1006 | != DK_UNSPECIFIED)) | |
1007 | diagnostic->kind | |
1008 | = context->classify_diagnostic[diagnostic->option_index]; | |
1009 | ||
334ec2d8 | 1010 | /* This allows for future extensions, like temporarily disabling |
76f02516 | 1011 | warnings for ranges of source code. */ |
1012 | if (diagnostic->kind == DK_IGNORED) | |
a52d5726 | 1013 | return false; |
76f02516 | 1014 | } |
b0932b2f | 1015 | |
bd257a76 | 1016 | if (diagnostic->kind != DK_NOTE) |
1017 | diagnostic_check_max_errors (context); | |
1018 | ||
583fa9e0 | 1019 | context->lock++; |
f060a027 | 1020 | |
9d7131bf | 1021 | if (diagnostic->kind == DK_ICE || diagnostic->kind == DK_ICE_NOBT) |
2faf8f38 | 1022 | { |
43404f28 | 1023 | /* When not checking, ICEs are converted to fatal errors when an |
1024 | error has already occurred. This is counteracted by | |
1025 | abort_on_error. */ | |
382ecba7 | 1026 | if (!CHECKING_P |
1027 | && (diagnostic_kind_count (context, DK_ERROR) > 0 | |
1028 | || diagnostic_kind_count (context, DK_SORRY) > 0) | |
43404f28 | 1029 | && !context->abort_on_error) |
1030 | { | |
389a9009 | 1031 | expanded_location s |
1032 | = expand_location (diagnostic_location (diagnostic)); | |
43404f28 | 1033 | fnotice (stderr, "%s:%d: confused by earlier errors, bailing out\n", |
1034 | s.file, s.line); | |
1035 | exit (ICE_EXIT_CODE); | |
1036 | } | |
43404f28 | 1037 | if (context->internal_error) |
1f63d337 | 1038 | (*context->internal_error) (context, |
1039 | diagnostic->message.format_spec, | |
43404f28 | 1040 | diagnostic->message.args_ptr); |
b63957b3 | 1041 | } |
d9d1b0a4 | 1042 | if (diagnostic->kind == DK_ERROR && orig_diag_kind == DK_WARNING) |
1043 | ++diagnostic_kind_count (context, DK_WERROR); | |
1044 | else | |
1045 | ++diagnostic_kind_count (context, diagnostic->kind); | |
48e1416a | 1046 | |
bc35ef65 | 1047 | /* Is this the initial diagnostic within the stack of groups? */ |
1048 | if (context->diagnostic_group_emission_count == 0) | |
1049 | { | |
1050 | if (context->begin_group_cb) | |
1051 | context->begin_group_cb (context); | |
1052 | } | |
1053 | context->diagnostic_group_emission_count++; | |
1054 | ||
ce084dfc | 1055 | diagnostic->message.x_data = &diagnostic->x_data; |
1056 | diagnostic->x_data = NULL; | |
43404f28 | 1057 | pp_format (context->printer, &diagnostic->message); |
1058 | (*diagnostic_starter (context)) (context, diagnostic); | |
1059 | pp_output_formatted_text (context->printer); | |
fa1e6801 | 1060 | if (context->show_option_requested) |
1061 | print_option_information (context, diagnostic, orig_diag_kind); | |
1bcc5c64 | 1062 | (*diagnostic_finalizer (context)) (context, diagnostic, orig_diag_kind); |
6628b04d | 1063 | if (context->parseable_fixits_p) |
1064 | { | |
1065 | print_parseable_fixits (context->printer, diagnostic->richloc); | |
1066 | pp_flush (context->printer); | |
1067 | } | |
716da296 | 1068 | diagnostic_action_after_output (context, diagnostic->kind); |
ce084dfc | 1069 | diagnostic->x_data = NULL; |
78323b05 | 1070 | |
40a431fa | 1071 | if (context->edit_context_ptr) |
112ca2a8 | 1072 | if (diagnostic->richloc->fixits_can_be_auto_applied_p ()) |
1073 | context->edit_context_ptr->add_fixits (diagnostic->richloc); | |
40a431fa | 1074 | |
78323b05 | 1075 | context->lock--; |
a52d5726 | 1076 | |
1077 | return true; | |
2faf8f38 | 1078 | } |
b63957b3 | 1079 | |
934182c6 | 1080 | /* Get the number of digits in the decimal representation of VALUE. */ |
1081 | ||
1082 | int | |
1083 | num_digits (int value) | |
1084 | { | |
1085 | /* Perhaps simpler to use log10 for this, but doing it this way avoids | |
1086 | using floating point. */ | |
1087 | gcc_assert (value >= 0); | |
1088 | ||
1089 | if (value == 0) | |
1090 | return 1; | |
1091 | ||
1092 | int digits = 0; | |
1093 | while (value > 0) | |
1094 | { | |
1095 | digits++; | |
1096 | value /= 10; | |
1097 | } | |
1098 | return digits; | |
1099 | } | |
1100 | ||
2faf8f38 | 1101 | /* Given a partial pathname as input, return another pathname that |
1102 | shares no directory elements with the pathname of __FILE__. This | |
1103 | is used by fancy_abort() to print `Internal compiler error in expr.c' | |
1104 | instead of `Internal compiler error in ../../GCC/gcc/expr.c'. */ | |
1eefe280 | 1105 | |
2faf8f38 | 1106 | const char * |
d598ad0d | 1107 | trim_filename (const char *name) |
2faf8f38 | 1108 | { |
1109 | static const char this_file[] = __FILE__; | |
1110 | const char *p = name, *q = this_file; | |
b63957b3 | 1111 | |
2faf8f38 | 1112 | /* First skip any "../" in each filename. This allows us to give a proper |
1113 | reference to a file in a subdirectory. */ | |
583fa9e0 | 1114 | while (p[0] == '.' && p[1] == '.' && IS_DIR_SEPARATOR (p[2])) |
2faf8f38 | 1115 | p += 3; |
1116 | ||
583fa9e0 | 1117 | while (q[0] == '.' && q[1] == '.' && IS_DIR_SEPARATOR (q[2])) |
2faf8f38 | 1118 | q += 3; |
1119 | ||
1120 | /* Now skip any parts the two filenames have in common. */ | |
1121 | while (*p == *q && *p != 0 && *q != 0) | |
1122 | p++, q++; | |
1123 | ||
1124 | /* Now go backwards until the previous directory separator. */ | |
7ebd7605 | 1125 | while (p > name && !IS_DIR_SEPARATOR (p[-1])) |
2faf8f38 | 1126 | p--; |
1127 | ||
1128 | return p; | |
076f8fe1 | 1129 | } |
2faf8f38 | 1130 | \f |
1131 | /* Standard error reporting routines in increasing order of severity. | |
1132 | All of these take arguments like printf. */ | |
076f8fe1 | 1133 | |
2faf8f38 | 1134 | /* Text to be emitted verbatim to the error message stream; this |
1135 | produces no prefix and disables line-wrapping. Use rarely. */ | |
076f8fe1 | 1136 | void |
380c6697 | 1137 | verbatim (const char *gmsgid, ...) |
2faf8f38 | 1138 | { |
1139 | text_info text; | |
ee582a61 | 1140 | va_list ap; |
2faf8f38 | 1141 | |
380c6697 | 1142 | va_start (ap, gmsgid); |
d07c9932 | 1143 | text.err_no = errno; |
2faf8f38 | 1144 | text.args_ptr = ≈ |
380c6697 | 1145 | text.format_spec = _(gmsgid); |
ce084dfc | 1146 | text.x_data = NULL; |
aa6db498 | 1147 | pp_format_verbatim (global_dc->printer, &text); |
5f7f600e | 1148 | pp_newline_and_flush (global_dc->printer); |
ee582a61 | 1149 | va_end (ap); |
2faf8f38 | 1150 | } |
1151 | ||
ff213692 | 1152 | /* Add a note with text GMSGID and with LOCATION to the diagnostic CONTEXT. */ |
1153 | void | |
1154 | diagnostic_append_note (diagnostic_context *context, | |
1155 | location_t location, | |
1156 | const char * gmsgid, ...) | |
1157 | { | |
1158 | diagnostic_info diagnostic; | |
1159 | va_list ap; | |
a96cefb2 | 1160 | rich_location richloc (line_table, location); |
ff213692 | 1161 | |
1162 | va_start (ap, gmsgid); | |
f0479000 | 1163 | diagnostic_set_info (&diagnostic, gmsgid, &ap, &richloc, DK_NOTE); |
1164 | if (context->inhibit_notes_p) | |
1165 | { | |
1166 | va_end (ap); | |
1167 | return; | |
1168 | } | |
cba058c7 | 1169 | char *saved_prefix = pp_take_prefix (context->printer); |
f0479000 | 1170 | pp_set_prefix (context->printer, |
1171 | diagnostic_build_prefix (context, &diagnostic)); | |
ff213692 | 1172 | pp_format (context->printer, &diagnostic.message); |
1173 | pp_output_formatted_text (context->printer); | |
1174 | pp_destroy_prefix (context->printer); | |
29d52322 | 1175 | pp_set_prefix (context->printer, saved_prefix); |
48a7392b | 1176 | diagnostic_show_locus (context, &richloc, DK_NOTE); |
9af5ce0c | 1177 | va_end (ap); |
ff213692 | 1178 | } |
1179 | ||
3b6578b3 | 1180 | /* Implement emit_diagnostic, inform, warning, warning_at, pedwarn, |
1181 | permerror, error, error_at, error_at, sorry, fatal_error, internal_error, | |
1182 | and internal_error_no_backtrace, as documented and defined below. */ | |
a262d9cd | 1183 | static bool |
1184 | diagnostic_impl (rich_location *richloc, int opt, | |
1185 | const char *gmsgid, | |
1186 | va_list *ap, diagnostic_t kind) | |
076f8fe1 | 1187 | { |
25e2ffe1 | 1188 | diagnostic_info diagnostic; |
a52d5726 | 1189 | if (kind == DK_PERMERROR) |
1190 | { | |
a262d9cd | 1191 | diagnostic_set_info (&diagnostic, gmsgid, ap, richloc, |
2c2efebb | 1192 | permissive_error_kind (global_dc)); |
3c6a9715 | 1193 | diagnostic.option_index = permissive_error_option (global_dc); |
a52d5726 | 1194 | } |
a262d9cd | 1195 | else |
1196 | { | |
1197 | diagnostic_set_info (&diagnostic, gmsgid, ap, richloc, kind); | |
a52d5726 | 1198 | if (kind == DK_WARNING || kind == DK_PEDWARN) |
1199 | diagnostic.option_index = opt; | |
a262d9cd | 1200 | } |
56b8400f | 1201 | return diagnostic_report_diagnostic (global_dc, &diagnostic); |
a262d9cd | 1202 | } |
1203 | ||
3b6578b3 | 1204 | /* Implement inform_n, warning_n, and error_n, as documented and |
1205 | defined below. */ | |
c43f5e5c | 1206 | static bool |
f4e3e4b1 | 1207 | diagnostic_n_impl (rich_location *richloc, int opt, unsigned HOST_WIDE_INT n, |
3b6578b3 | 1208 | const char *singular_gmsgid, |
1209 | const char *plural_gmsgid, | |
1210 | va_list *ap, diagnostic_t kind) | |
c43f5e5c | 1211 | { |
1212 | diagnostic_info diagnostic; | |
f4e3e4b1 | 1213 | unsigned long gtn; |
1214 | ||
1215 | if (sizeof n <= sizeof gtn) | |
1216 | gtn = n; | |
1217 | else | |
1218 | /* Use the largest number ngettext can handle, otherwise | |
1219 | preserve the six least significant decimal digits for | |
1220 | languages where the plural form depends on them. */ | |
1221 | gtn = n <= ULONG_MAX ? n : n % 1000000LU + 1000000LU; | |
1222 | ||
1223 | const char *text = ngettext (singular_gmsgid, plural_gmsgid, gtn); | |
1224 | diagnostic_set_info_translated (&diagnostic, text, ap, richloc, kind); | |
c43f5e5c | 1225 | if (kind == DK_WARNING) |
1226 | diagnostic.option_index = opt; | |
56b8400f | 1227 | return diagnostic_report_diagnostic (global_dc, &diagnostic); |
a262d9cd | 1228 | } |
a52d5726 | 1229 | |
88539b96 | 1230 | /* Wrapper around diagnostic_impl taking a variable argument list. */ |
1231 | ||
a262d9cd | 1232 | bool |
1233 | emit_diagnostic (diagnostic_t kind, location_t location, int opt, | |
1234 | const char *gmsgid, ...) | |
1235 | { | |
bc35ef65 | 1236 | auto_diagnostic_group d; |
a262d9cd | 1237 | va_list ap; |
1238 | va_start (ap, gmsgid); | |
1239 | rich_location richloc (line_table, location); | |
1240 | bool ret = diagnostic_impl (&richloc, opt, gmsgid, &ap, kind); | |
e3d533cf | 1241 | va_end (ap); |
1242 | return ret; | |
076f8fe1 | 1243 | } |
1244 | ||
6639e735 | 1245 | /* As above, but for rich_location *. */ |
1246 | ||
1247 | bool | |
1248 | emit_diagnostic (diagnostic_t kind, rich_location *richloc, int opt, | |
1249 | const char *gmsgid, ...) | |
1250 | { | |
1251 | auto_diagnostic_group d; | |
1252 | va_list ap; | |
1253 | va_start (ap, gmsgid); | |
1254 | bool ret = diagnostic_impl (richloc, opt, gmsgid, &ap, kind); | |
1255 | va_end (ap); | |
1256 | return ret; | |
1257 | } | |
1258 | ||
88539b96 | 1259 | /* Wrapper around diagnostic_impl taking a va_list parameter. */ |
1260 | ||
1261 | bool | |
1262 | emit_diagnostic_valist (diagnostic_t kind, location_t location, int opt, | |
1263 | const char *gmsgid, va_list *ap) | |
1264 | { | |
1265 | rich_location richloc (line_table, location); | |
1266 | return diagnostic_impl (&richloc, opt, gmsgid, ap, kind); | |
1267 | } | |
1268 | ||
5bcc316e | 1269 | /* An informative note at LOCATION. Use this for additional details on an error |
a52d5726 | 1270 | message. */ |
076f8fe1 | 1271 | void |
5bcc316e | 1272 | inform (location_t location, const char *gmsgid, ...) |
f0479000 | 1273 | { |
bc35ef65 | 1274 | auto_diagnostic_group d; |
f0479000 | 1275 | va_list ap; |
f0479000 | 1276 | va_start (ap, gmsgid); |
a262d9cd | 1277 | rich_location richloc (line_table, location); |
1278 | diagnostic_impl (&richloc, -1, gmsgid, &ap, DK_NOTE); | |
f0479000 | 1279 | va_end (ap); |
1280 | } | |
1281 | ||
3b6578b3 | 1282 | /* Same as "inform" above, but at RICHLOC. */ |
f0479000 | 1283 | void |
3b6578b3 | 1284 | inform (rich_location *richloc, const char *gmsgid, ...) |
c3ceba8e | 1285 | { |
3b6578b3 | 1286 | gcc_assert (richloc); |
1287 | ||
bc35ef65 | 1288 | auto_diagnostic_group d; |
c3ceba8e | 1289 | va_list ap; |
380c6697 | 1290 | va_start (ap, gmsgid); |
a262d9cd | 1291 | diagnostic_impl (richloc, -1, gmsgid, &ap, DK_NOTE); |
c3ceba8e | 1292 | va_end (ap); |
1293 | } | |
1294 | ||
c0ddc4f8 | 1295 | /* An informative note at LOCATION. Use this for additional details on an |
1296 | error message. */ | |
1297 | void | |
f4e3e4b1 | 1298 | inform_n (location_t location, unsigned HOST_WIDE_INT n, |
1299 | const char *singular_gmsgid, const char *plural_gmsgid, ...) | |
c0ddc4f8 | 1300 | { |
c0ddc4f8 | 1301 | va_list ap; |
c0ddc4f8 | 1302 | va_start (ap, plural_gmsgid); |
bc35ef65 | 1303 | auto_diagnostic_group d; |
3b6578b3 | 1304 | rich_location richloc (line_table, location); |
1305 | diagnostic_n_impl (&richloc, -1, n, singular_gmsgid, plural_gmsgid, | |
a262d9cd | 1306 | &ap, DK_NOTE); |
c0ddc4f8 | 1307 | va_end (ap); |
1308 | } | |
1309 | ||
a52d5726 | 1310 | /* A warning at INPUT_LOCATION. Use this for code which is correct according |
48e1416a | 1311 | to the relevant language specification but is likely to be buggy anyway. |
a52d5726 | 1312 | Returns true if the warning was printed, false if it was inhibited. */ |
1313 | bool | |
1314 | warning (int opt, const char *gmsgid, ...) | |
076f8fe1 | 1315 | { |
bc35ef65 | 1316 | auto_diagnostic_group d; |
ee582a61 | 1317 | va_list ap; |
380c6697 | 1318 | va_start (ap, gmsgid); |
a262d9cd | 1319 | rich_location richloc (line_table, input_location); |
1320 | bool ret = diagnostic_impl (&richloc, opt, gmsgid, &ap, DK_WARNING); | |
ee582a61 | 1321 | va_end (ap); |
e3d533cf | 1322 | return ret; |
076f8fe1 | 1323 | } |
1324 | ||
bdbc474b | 1325 | /* A warning at LOCATION. Use this for code which is correct according to the |
a52d5726 | 1326 | relevant language specification but is likely to be buggy anyway. |
1327 | Returns true if the warning was printed, false if it was inhibited. */ | |
1328 | ||
1329 | bool | |
bdbc474b | 1330 | warning_at (location_t location, int opt, const char *gmsgid, ...) |
f0479000 | 1331 | { |
bc35ef65 | 1332 | auto_diagnostic_group d; |
f0479000 | 1333 | va_list ap; |
f0479000 | 1334 | va_start (ap, gmsgid); |
a262d9cd | 1335 | rich_location richloc (line_table, location); |
1336 | bool ret = diagnostic_impl (&richloc, opt, gmsgid, &ap, DK_WARNING); | |
f0479000 | 1337 | va_end (ap); |
1338 | return ret; | |
1339 | } | |
1340 | ||
3b6578b3 | 1341 | /* Same as "warning at" above, but using RICHLOC. */ |
f0479000 | 1342 | |
1343 | bool | |
3b6578b3 | 1344 | warning_at (rich_location *richloc, int opt, const char *gmsgid, ...) |
bdbc474b | 1345 | { |
3b6578b3 | 1346 | gcc_assert (richloc); |
1347 | ||
bc35ef65 | 1348 | auto_diagnostic_group d; |
bdbc474b | 1349 | va_list ap; |
bdbc474b | 1350 | va_start (ap, gmsgid); |
a262d9cd | 1351 | bool ret = diagnostic_impl (richloc, opt, gmsgid, &ap, DK_WARNING); |
bdbc474b | 1352 | va_end (ap); |
e3d533cf | 1353 | return ret; |
bdbc474b | 1354 | } |
1355 | ||
3b6578b3 | 1356 | /* Same as warning_n plural variant below, but using RICHLOC. */ |
c43f5e5c | 1357 | |
1358 | bool | |
f4e3e4b1 | 1359 | warning_n (rich_location *richloc, int opt, unsigned HOST_WIDE_INT n, |
3b6578b3 | 1360 | const char *singular_gmsgid, const char *plural_gmsgid, ...) |
c43f5e5c | 1361 | { |
3b6578b3 | 1362 | gcc_assert (richloc); |
1363 | ||
bc35ef65 | 1364 | auto_diagnostic_group d; |
c43f5e5c | 1365 | va_list ap; |
1366 | va_start (ap, plural_gmsgid); | |
3b6578b3 | 1367 | bool ret = diagnostic_n_impl (richloc, opt, n, |
1368 | singular_gmsgid, plural_gmsgid, | |
1369 | &ap, DK_WARNING); | |
c43f5e5c | 1370 | va_end (ap); |
1371 | return ret; | |
1372 | } | |
1373 | ||
1b355793 | 1374 | /* A warning at LOCATION. Use this for code which is correct according to the |
1375 | relevant language specification but is likely to be buggy anyway. | |
1376 | Returns true if the warning was printed, false if it was inhibited. */ | |
1377 | ||
1378 | bool | |
f4e3e4b1 | 1379 | warning_n (location_t location, int opt, unsigned HOST_WIDE_INT n, |
1380 | const char *singular_gmsgid, const char *plural_gmsgid, ...) | |
1b355793 | 1381 | { |
bc35ef65 | 1382 | auto_diagnostic_group d; |
1b355793 | 1383 | va_list ap; |
1b355793 | 1384 | va_start (ap, plural_gmsgid); |
3b6578b3 | 1385 | rich_location richloc (line_table, location); |
1386 | bool ret = diagnostic_n_impl (&richloc, opt, n, | |
a262d9cd | 1387 | singular_gmsgid, plural_gmsgid, |
1388 | &ap, DK_WARNING); | |
1b355793 | 1389 | va_end (ap); |
1390 | return ret; | |
1391 | } | |
1392 | ||
e8fc0d34 | 1393 | /* A "pedantic" warning at LOCATION: issues a warning unless |
1394 | -pedantic-errors was given on the command line, in which case it | |
1395 | issues an error. Use this for diagnostics required by the relevant | |
1396 | language standard, if you have chosen not to make them errors. | |
78323b05 | 1397 | |
1398 | Note that these diagnostics are issued independent of the setting | |
29438999 | 1399 | of the -Wpedantic command-line switch. To get a warning enabled |
8864917d | 1400 | only with that switch, use either "if (pedantic) pedwarn |
29438999 | 1401 | (OPT_Wpedantic,...)" or just "pedwarn (OPT_Wpedantic,..)". To get a |
1402 | pedwarn independently of the -Wpedantic switch use "pedwarn (0,...)". | |
8864917d | 1403 | |
a52d5726 | 1404 | Returns true if the warning was printed, false if it was inhibited. */ |
1405 | ||
e8fc0d34 | 1406 | bool |
21ca8540 | 1407 | pedwarn (location_t location, int opt, const char *gmsgid, ...) |
e8fc0d34 | 1408 | { |
bc35ef65 | 1409 | auto_diagnostic_group d; |
e8fc0d34 | 1410 | va_list ap; |
e8fc0d34 | 1411 | va_start (ap, gmsgid); |
a262d9cd | 1412 | rich_location richloc (line_table, location); |
1413 | bool ret = diagnostic_impl (&richloc, opt, gmsgid, &ap, DK_PEDWARN); | |
e8fc0d34 | 1414 | va_end (ap); |
e3d533cf | 1415 | return ret; |
e8fc0d34 | 1416 | } |
1417 | ||
3b6578b3 | 1418 | /* Same as pedwarn above, but using RICHLOC. */ |
8469aece | 1419 | |
1420 | bool | |
3b6578b3 | 1421 | pedwarn (rich_location *richloc, int opt, const char *gmsgid, ...) |
8469aece | 1422 | { |
3b6578b3 | 1423 | gcc_assert (richloc); |
1424 | ||
bc35ef65 | 1425 | auto_diagnostic_group d; |
8469aece | 1426 | va_list ap; |
1427 | va_start (ap, gmsgid); | |
1428 | bool ret = diagnostic_impl (richloc, opt, gmsgid, &ap, DK_PEDWARN); | |
1429 | va_end (ap); | |
1430 | return ret; | |
1431 | } | |
1432 | ||
2ba27e7e | 1433 | /* A "permissive" error at LOCATION: issues an error unless |
1434 | -fpermissive was given on the command line, in which case it issues | |
1435 | a warning. Use this for things that really should be errors but we | |
a52d5726 | 1436 | want to support legacy code. |
2ba27e7e | 1437 | |
a52d5726 | 1438 | Returns true if the warning was printed, false if it was inhibited. */ |
1439 | ||
1440 | bool | |
2b9e3597 | 1441 | permerror (location_t location, const char *gmsgid, ...) |
2ba27e7e | 1442 | { |
bc35ef65 | 1443 | auto_diagnostic_group d; |
2ba27e7e | 1444 | va_list ap; |
2ba27e7e | 1445 | va_start (ap, gmsgid); |
a262d9cd | 1446 | rich_location richloc (line_table, location); |
1447 | bool ret = diagnostic_impl (&richloc, -1, gmsgid, &ap, DK_PERMERROR); | |
f0479000 | 1448 | va_end (ap); |
1449 | return ret; | |
1450 | } | |
1451 | ||
3b6578b3 | 1452 | /* Same as "permerror" above, but at RICHLOC. */ |
f0479000 | 1453 | |
1454 | bool | |
3b6578b3 | 1455 | permerror (rich_location *richloc, const char *gmsgid, ...) |
f0479000 | 1456 | { |
3b6578b3 | 1457 | gcc_assert (richloc); |
1458 | ||
bc35ef65 | 1459 | auto_diagnostic_group d; |
f0479000 | 1460 | va_list ap; |
f0479000 | 1461 | va_start (ap, gmsgid); |
a262d9cd | 1462 | bool ret = diagnostic_impl (richloc, -1, gmsgid, &ap, DK_PERMERROR); |
2ba27e7e | 1463 | va_end (ap); |
e3d533cf | 1464 | return ret; |
2ba27e7e | 1465 | } |
1466 | ||
2faf8f38 | 1467 | /* A hard error: the code is definitely ill-formed, and an object file |
1468 | will not be produced. */ | |
2d6f73d2 | 1469 | void |
380c6697 | 1470 | error (const char *gmsgid, ...) |
2d6f73d2 | 1471 | { |
bc35ef65 | 1472 | auto_diagnostic_group d; |
ee582a61 | 1473 | va_list ap; |
380c6697 | 1474 | va_start (ap, gmsgid); |
a262d9cd | 1475 | rich_location richloc (line_table, input_location); |
1476 | diagnostic_impl (&richloc, -1, gmsgid, &ap, DK_ERROR); | |
ee582a61 | 1477 | va_end (ap); |
b7c4d3f3 | 1478 | } |
1479 | ||
c0ddc4f8 | 1480 | /* A hard error: the code is definitely ill-formed, and an object file |
1481 | will not be produced. */ | |
1482 | void | |
f4e3e4b1 | 1483 | error_n (location_t location, unsigned HOST_WIDE_INT n, |
1484 | const char *singular_gmsgid, const char *plural_gmsgid, ...) | |
c0ddc4f8 | 1485 | { |
bc35ef65 | 1486 | auto_diagnostic_group d; |
c0ddc4f8 | 1487 | va_list ap; |
c0ddc4f8 | 1488 | va_start (ap, plural_gmsgid); |
3b6578b3 | 1489 | rich_location richloc (line_table, location); |
1490 | diagnostic_n_impl (&richloc, -1, n, singular_gmsgid, plural_gmsgid, | |
a262d9cd | 1491 | &ap, DK_ERROR); |
c0ddc4f8 | 1492 | va_end (ap); |
1493 | } | |
1494 | ||
a262d9cd | 1495 | /* Same as above, but use location LOC instead of input_location. */ |
3bc1df45 | 1496 | void |
1497 | error_at (location_t loc, const char *gmsgid, ...) | |
1498 | { | |
bc35ef65 | 1499 | auto_diagnostic_group d; |
3bc1df45 | 1500 | va_list ap; |
3bc1df45 | 1501 | va_start (ap, gmsgid); |
a262d9cd | 1502 | rich_location richloc (line_table, loc); |
1503 | diagnostic_impl (&richloc, -1, gmsgid, &ap, DK_ERROR); | |
f0479000 | 1504 | va_end (ap); |
1505 | } | |
1506 | ||
1507 | /* Same as above, but use RICH_LOC. */ | |
1508 | ||
1509 | void | |
3b6578b3 | 1510 | error_at (rich_location *richloc, const char *gmsgid, ...) |
f0479000 | 1511 | { |
3b6578b3 | 1512 | gcc_assert (richloc); |
1513 | ||
bc35ef65 | 1514 | auto_diagnostic_group d; |
f0479000 | 1515 | va_list ap; |
f0479000 | 1516 | va_start (ap, gmsgid); |
a262d9cd | 1517 | diagnostic_impl (richloc, -1, gmsgid, &ap, DK_ERROR); |
3bc1df45 | 1518 | va_end (ap); |
1519 | } | |
1520 | ||
2faf8f38 | 1521 | /* "Sorry, not implemented." Use for a language feature which is |
1522 | required by the relevant specification but not implemented by GCC. | |
1523 | An object file will not be produced. */ | |
b7c4d3f3 | 1524 | void |
380c6697 | 1525 | sorry (const char *gmsgid, ...) |
b7c4d3f3 | 1526 | { |
bc35ef65 | 1527 | auto_diagnostic_group d; |
ee582a61 | 1528 | va_list ap; |
380c6697 | 1529 | va_start (ap, gmsgid); |
a262d9cd | 1530 | rich_location richloc (line_table, input_location); |
1531 | diagnostic_impl (&richloc, -1, gmsgid, &ap, DK_SORRY); | |
ee582a61 | 1532 | va_end (ap); |
2faf8f38 | 1533 | } |
b63957b3 | 1534 | |
02e99bba | 1535 | /* Same as above, but use location LOC instead of input_location. */ |
1536 | void | |
1537 | sorry_at (location_t loc, const char *gmsgid, ...) | |
1538 | { | |
1539 | auto_diagnostic_group d; | |
1540 | va_list ap; | |
1541 | va_start (ap, gmsgid); | |
1542 | rich_location richloc (line_table, loc); | |
1543 | diagnostic_impl (&richloc, -1, gmsgid, &ap, DK_SORRY); | |
1544 | va_end (ap); | |
1545 | } | |
1546 | ||
852f689e | 1547 | /* Return true if an error or a "sorry" has been seen. Various |
1548 | processing is disabled after errors. */ | |
1549 | bool | |
1550 | seen_error (void) | |
1551 | { | |
1552 | return errorcount || sorrycount; | |
1553 | } | |
1554 | ||
4d0069ee | 1555 | /* An error which is severe enough that we make no attempt to |
1556 | continue. Do not use this for internal consistency checks; that's | |
1557 | internal_error. Use of this function should be rare. */ | |
1558 | void | |
1559 | fatal_error (location_t loc, const char *gmsgid, ...) | |
1560 | { | |
bc35ef65 | 1561 | auto_diagnostic_group d; |
4d0069ee | 1562 | va_list ap; |
4d0069ee | 1563 | va_start (ap, gmsgid); |
a262d9cd | 1564 | rich_location richloc (line_table, loc); |
1565 | diagnostic_impl (&richloc, -1, gmsgid, &ap, DK_FATAL); | |
4d0069ee | 1566 | va_end (ap); |
1567 | ||
1568 | gcc_unreachable (); | |
1569 | } | |
1570 | ||
2faf8f38 | 1571 | /* An internal consistency check has failed. We make no attempt to |
1572 | continue. Note that unless there is debugging value to be had from | |
1573 | a more specific message, or some other good reason, you should use | |
1574 | abort () instead of calling this function directly. */ | |
1575 | void | |
380c6697 | 1576 | internal_error (const char *gmsgid, ...) |
19fafbd3 | 1577 | { |
bc35ef65 | 1578 | auto_diagnostic_group d; |
ee582a61 | 1579 | va_list ap; |
380c6697 | 1580 | va_start (ap, gmsgid); |
a262d9cd | 1581 | rich_location richloc (line_table, input_location); |
1582 | diagnostic_impl (&richloc, -1, gmsgid, &ap, DK_ICE); | |
ee582a61 | 1583 | va_end (ap); |
19fafbd3 | 1584 | |
583fa9e0 | 1585 | gcc_unreachable (); |
19fafbd3 | 1586 | } |
9d7131bf | 1587 | |
1588 | /* Like internal_error, but no backtrace will be printed. Used when | |
1589 | the internal error does not happen at the current location, but happened | |
1590 | somewhere else. */ | |
1591 | void | |
1592 | internal_error_no_backtrace (const char *gmsgid, ...) | |
1593 | { | |
bc35ef65 | 1594 | auto_diagnostic_group d; |
9d7131bf | 1595 | va_list ap; |
9d7131bf | 1596 | va_start (ap, gmsgid); |
a262d9cd | 1597 | rich_location richloc (line_table, input_location); |
1598 | diagnostic_impl (&richloc, -1, gmsgid, &ap, DK_ICE_NOBT); | |
9d7131bf | 1599 | va_end (ap); |
1600 | ||
1601 | gcc_unreachable (); | |
1602 | } | |
2faf8f38 | 1603 | \f |
2faf8f38 | 1604 | /* Special case error functions. Most are implemented in terms of the |
1605 | above, or should be. */ | |
88da234d | 1606 | |
2faf8f38 | 1607 | /* Print a diagnostic MSGID on FILE. This is just fprintf, except it |
1608 | runs its second argument through gettext. */ | |
9cab5830 | 1609 | void |
380c6697 | 1610 | fnotice (FILE *file, const char *cmsgid, ...) |
9cab5830 | 1611 | { |
ee582a61 | 1612 | va_list ap; |
9cab5830 | 1613 | |
380c6697 | 1614 | va_start (ap, cmsgid); |
1615 | vfprintf (file, _(cmsgid), ap); | |
ee582a61 | 1616 | va_end (ap); |
9cab5830 | 1617 | } |
1618 | ||
2faf8f38 | 1619 | /* Inform the user that an error occurred while trying to report some |
1620 | other error. This indicates catastrophic internal inconsistencies, | |
1621 | so give up now. But do try to flush out the previous error. | |
1622 | This mustn't use internal_error, that will cause infinite recursion. */ | |
1623 | ||
1624 | static void | |
d598ad0d | 1625 | error_recursion (diagnostic_context *context) |
2faf8f38 | 1626 | { |
1627 | if (context->lock < 3) | |
5f7f600e | 1628 | pp_newline_and_flush (context->printer); |
2faf8f38 | 1629 | |
1630 | fnotice (stderr, | |
1631 | "Internal compiler error: Error reporting routines re-entered.\n"); | |
583fa9e0 | 1632 | |
1633 | /* Call diagnostic_action_after_output to get the "please submit a bug | |
716da296 | 1634 | report" message. */ |
1635 | diagnostic_action_after_output (context, DK_ICE); | |
583fa9e0 | 1636 | |
1637 | /* Do not use gcc_unreachable here; that goes through internal_error | |
1638 | and therefore would cause infinite recursion. */ | |
1639 | real_abort (); | |
2faf8f38 | 1640 | } |
1641 | ||
1642 | /* Report an internal compiler error in a friendly manner. This is | |
1643 | the function that gets called upon use of abort() in the source | |
1644 | code generally, thanks to a special macro. */ | |
1645 | ||
1646 | void | |
d598ad0d | 1647 | fancy_abort (const char *file, int line, const char *function) |
2faf8f38 | 1648 | { |
1649 | internal_error ("in %s, at %s:%d", function, trim_filename (file), line); | |
1650 | } | |
1651 | ||
bc35ef65 | 1652 | /* class auto_diagnostic_group. */ |
1653 | ||
1654 | /* Constructor: "push" this group into global_dc. */ | |
1655 | ||
1656 | auto_diagnostic_group::auto_diagnostic_group () | |
1657 | { | |
1658 | global_dc->diagnostic_group_nesting_depth++; | |
1659 | } | |
1660 | ||
1661 | /* Destructor: "pop" this group from global_dc. */ | |
1662 | ||
1663 | auto_diagnostic_group::~auto_diagnostic_group () | |
1664 | { | |
1665 | if (--global_dc->diagnostic_group_nesting_depth == 0) | |
1666 | { | |
1667 | /* Handle the case where we've popped the final diagnostic group. | |
1668 | If any diagnostics were emitted, give the context a chance | |
1669 | to do something. */ | |
1670 | if (global_dc->diagnostic_group_emission_count > 0) | |
1671 | { | |
1672 | if (global_dc->end_group_cb) | |
1673 | global_dc->end_group_cb (global_dc); | |
1674 | } | |
1675 | global_dc->diagnostic_group_emission_count = 0; | |
1676 | } | |
1677 | } | |
1678 | ||
5f07bab0 | 1679 | /* Really call the system 'abort'. This has to go right at the end of |
1680 | this file, so that there are no functions after it that call abort | |
1681 | and get the system abort instead of our macro. */ | |
1682 | #undef abort | |
d598ad0d | 1683 | static void |
1684 | real_abort (void) | |
5f07bab0 | 1685 | { |
1686 | abort (); | |
1687 | } | |
6628b04d | 1688 | |
1689 | #if CHECKING_P | |
1690 | ||
1691 | namespace selftest { | |
1692 | ||
1693 | /* Helper function for test_print_escaped_string. */ | |
1694 | ||
1695 | static void | |
1696 | assert_print_escaped_string (const location &loc, const char *expected_output, | |
1697 | const char *input) | |
1698 | { | |
1699 | pretty_printer pp; | |
1700 | print_escaped_string (&pp, input); | |
1701 | ASSERT_STREQ_AT (loc, expected_output, pp_formatted_text (&pp)); | |
1702 | } | |
1703 | ||
1704 | #define ASSERT_PRINT_ESCAPED_STRING_STREQ(EXPECTED_OUTPUT, INPUT) \ | |
1705 | assert_print_escaped_string (SELFTEST_LOCATION, EXPECTED_OUTPUT, INPUT) | |
1706 | ||
1707 | /* Tests of print_escaped_string. */ | |
1708 | ||
1709 | static void | |
1710 | test_print_escaped_string () | |
1711 | { | |
1712 | /* Empty string. */ | |
1713 | ASSERT_PRINT_ESCAPED_STRING_STREQ ("\"\"", ""); | |
1714 | ||
1715 | /* Non-empty string. */ | |
1716 | ASSERT_PRINT_ESCAPED_STRING_STREQ ("\"hello world\"", "hello world"); | |
1717 | ||
1718 | /* Various things that need to be escaped: */ | |
1719 | /* Backslash. */ | |
1720 | ASSERT_PRINT_ESCAPED_STRING_STREQ ("\"before\\\\after\"", | |
1721 | "before\\after"); | |
1722 | /* Tab. */ | |
1723 | ASSERT_PRINT_ESCAPED_STRING_STREQ ("\"before\\tafter\"", | |
1724 | "before\tafter"); | |
1725 | /* Newline. */ | |
1726 | ASSERT_PRINT_ESCAPED_STRING_STREQ ("\"before\\nafter\"", | |
1727 | "before\nafter"); | |
1728 | /* Double quote. */ | |
1729 | ASSERT_PRINT_ESCAPED_STRING_STREQ ("\"before\\\"after\"", | |
1730 | "before\"after"); | |
1731 | ||
1732 | /* Non-printable characters: BEL: '\a': 0x07 */ | |
1733 | ASSERT_PRINT_ESCAPED_STRING_STREQ ("\"before\\007after\"", | |
1734 | "before\aafter"); | |
1735 | /* Non-printable characters: vertical tab: '\v': 0x0b */ | |
1736 | ASSERT_PRINT_ESCAPED_STRING_STREQ ("\"before\\013after\"", | |
1737 | "before\vafter"); | |
1738 | } | |
1739 | ||
1740 | /* Tests of print_parseable_fixits. */ | |
1741 | ||
1742 | /* Verify that print_parseable_fixits emits the empty string if there | |
1743 | are no fixits. */ | |
1744 | ||
1745 | static void | |
1746 | test_print_parseable_fixits_none () | |
1747 | { | |
1748 | pretty_printer pp; | |
1749 | rich_location richloc (line_table, UNKNOWN_LOCATION); | |
1750 | ||
1751 | print_parseable_fixits (&pp, &richloc); | |
1752 | ASSERT_STREQ ("", pp_formatted_text (&pp)); | |
1753 | } | |
1754 | ||
1755 | /* Verify that print_parseable_fixits does the right thing if there | |
1756 | is an insertion fixit hint. */ | |
1757 | ||
1758 | static void | |
1759 | test_print_parseable_fixits_insert () | |
1760 | { | |
1761 | pretty_printer pp; | |
1762 | rich_location richloc (line_table, UNKNOWN_LOCATION); | |
1763 | ||
1764 | linemap_add (line_table, LC_ENTER, false, "test.c", 0); | |
1765 | linemap_line_start (line_table, 5, 100); | |
1766 | linemap_add (line_table, LC_LEAVE, false, NULL, 0); | |
1767 | location_t where = linemap_position_for_column (line_table, 10); | |
68ef907c | 1768 | richloc.add_fixit_insert_before (where, "added content"); |
6628b04d | 1769 | |
1770 | print_parseable_fixits (&pp, &richloc); | |
1771 | ASSERT_STREQ ("fix-it:\"test.c\":{5:10-5:10}:\"added content\"\n", | |
1772 | pp_formatted_text (&pp)); | |
1773 | } | |
1774 | ||
1775 | /* Verify that print_parseable_fixits does the right thing if there | |
1776 | is an removal fixit hint. */ | |
1777 | ||
1778 | static void | |
1779 | test_print_parseable_fixits_remove () | |
1780 | { | |
1781 | pretty_printer pp; | |
1782 | rich_location richloc (line_table, UNKNOWN_LOCATION); | |
1783 | ||
1784 | linemap_add (line_table, LC_ENTER, false, "test.c", 0); | |
1785 | linemap_line_start (line_table, 5, 100); | |
1786 | linemap_add (line_table, LC_LEAVE, false, NULL, 0); | |
1787 | source_range where; | |
1788 | where.m_start = linemap_position_for_column (line_table, 10); | |
1789 | where.m_finish = linemap_position_for_column (line_table, 20); | |
1790 | richloc.add_fixit_remove (where); | |
1791 | ||
1792 | print_parseable_fixits (&pp, &richloc); | |
1793 | ASSERT_STREQ ("fix-it:\"test.c\":{5:10-5:21}:\"\"\n", | |
1794 | pp_formatted_text (&pp)); | |
1795 | } | |
1796 | ||
1797 | /* Verify that print_parseable_fixits does the right thing if there | |
1798 | is an replacement fixit hint. */ | |
1799 | ||
1800 | static void | |
1801 | test_print_parseable_fixits_replace () | |
1802 | { | |
1803 | pretty_printer pp; | |
1804 | rich_location richloc (line_table, UNKNOWN_LOCATION); | |
1805 | ||
1806 | linemap_add (line_table, LC_ENTER, false, "test.c", 0); | |
1807 | linemap_line_start (line_table, 5, 100); | |
1808 | linemap_add (line_table, LC_LEAVE, false, NULL, 0); | |
1809 | source_range where; | |
1810 | where.m_start = linemap_position_for_column (line_table, 10); | |
1811 | where.m_finish = linemap_position_for_column (line_table, 20); | |
1812 | richloc.add_fixit_replace (where, "replacement"); | |
1813 | ||
1814 | print_parseable_fixits (&pp, &richloc); | |
1815 | ASSERT_STREQ ("fix-it:\"test.c\":{5:10-5:21}:\"replacement\"\n", | |
1816 | pp_formatted_text (&pp)); | |
1817 | } | |
1818 | ||
fd3a7b2d | 1819 | /* Verify that |
1820 | diagnostic_get_location_text (..., SHOW_COLUMN) | |
1821 | generates EXPECTED_LOC_TEXT, given FILENAME, LINE, COLUMN, with | |
1822 | colorization disabled. */ | |
1823 | ||
1824 | static void | |
1825 | assert_location_text (const char *expected_loc_text, | |
1826 | const char *filename, int line, int column, | |
1827 | bool show_column) | |
1828 | { | |
1829 | test_diagnostic_context dc; | |
1830 | dc.show_column = show_column; | |
1831 | ||
1832 | expanded_location xloc; | |
1833 | xloc.file = filename; | |
1834 | xloc.line = line; | |
1835 | xloc.column = column; | |
1836 | xloc.data = NULL; | |
1837 | xloc.sysp = false; | |
1838 | ||
1839 | char *actual_loc_text = diagnostic_get_location_text (&dc, xloc); | |
1840 | ASSERT_STREQ (expected_loc_text, actual_loc_text); | |
1841 | free (actual_loc_text); | |
1842 | } | |
1843 | ||
1844 | /* Verify that diagnostic_get_location_text works as expected. */ | |
1845 | ||
1846 | static void | |
1847 | test_diagnostic_get_location_text () | |
1848 | { | |
1849 | const char *old_progname = progname; | |
1850 | progname = "PROGNAME"; | |
1851 | assert_location_text ("PROGNAME:", NULL, 0, 0, true); | |
1852 | assert_location_text ("<built-in>:", "<built-in>", 42, 10, true); | |
1853 | assert_location_text ("foo.c:42:10:", "foo.c", 42, 10, true); | |
786bf3ad | 1854 | assert_location_text ("foo.c:42:", "foo.c", 42, 0, true); |
1855 | assert_location_text ("foo.c:", "foo.c", 0, 10, true); | |
fd3a7b2d | 1856 | assert_location_text ("foo.c:42:", "foo.c", 42, 10, false); |
786bf3ad | 1857 | assert_location_text ("foo.c:", "foo.c", 0, 10, false); |
1858 | ||
1859 | maybe_line_and_column (INT_MAX, INT_MAX); | |
1860 | maybe_line_and_column (INT_MIN, INT_MIN); | |
1861 | ||
fd3a7b2d | 1862 | progname = old_progname; |
1863 | } | |
1864 | ||
934182c6 | 1865 | /* Selftest for num_digits. */ |
1866 | ||
1867 | static void | |
1868 | test_num_digits () | |
1869 | { | |
1870 | ASSERT_EQ (1, num_digits (0)); | |
1871 | ASSERT_EQ (1, num_digits (9)); | |
1872 | ASSERT_EQ (2, num_digits (10)); | |
1873 | ASSERT_EQ (2, num_digits (99)); | |
1874 | ASSERT_EQ (3, num_digits (100)); | |
1875 | ASSERT_EQ (3, num_digits (999)); | |
1876 | ASSERT_EQ (4, num_digits (1000)); | |
1877 | ASSERT_EQ (4, num_digits (9999)); | |
1878 | ASSERT_EQ (5, num_digits (10000)); | |
1879 | ASSERT_EQ (5, num_digits (99999)); | |
1880 | ASSERT_EQ (6, num_digits (100000)); | |
1881 | ASSERT_EQ (6, num_digits (999999)); | |
1882 | ASSERT_EQ (7, num_digits (1000000)); | |
1883 | ASSERT_EQ (7, num_digits (9999999)); | |
1884 | ASSERT_EQ (8, num_digits (10000000)); | |
1885 | ASSERT_EQ (8, num_digits (99999999)); | |
1886 | } | |
1887 | ||
6628b04d | 1888 | /* Run all of the selftests within this file. */ |
1889 | ||
1890 | void | |
1891 | diagnostic_c_tests () | |
1892 | { | |
1893 | test_print_escaped_string (); | |
1894 | test_print_parseable_fixits_none (); | |
1895 | test_print_parseable_fixits_insert (); | |
1896 | test_print_parseable_fixits_remove (); | |
1897 | test_print_parseable_fixits_replace (); | |
fd3a7b2d | 1898 | test_diagnostic_get_location_text (); |
934182c6 | 1899 | test_num_digits (); |
1900 | ||
6628b04d | 1901 | } |
1902 | ||
1903 | } // namespace selftest | |
1904 | ||
1905 | #endif /* #if CHECKING_P */ | |
62c34df8 | 1906 | |
1907 | #if __GNUC__ >= 10 | |
1908 | # pragma GCC diagnostic pop | |
1909 | #endif |