1 /* Language-independent diagnostic subroutines for the GNU Compiler Collection
2 Copyright (C) 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
3 Contributed by Gabriel Dos Reis <gdr@codesourcery.com>
5 This file is part of GCC.
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
9 Software Foundation; either version 2, or (at your option) any later
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
17 You should have received a copy of the GNU General Public License
18 along with GCC; see the file COPYING. If not, write to the Free
19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
23 /* This file implements the language independent aspect of diagnostic
27 #undef FLOAT /* This is for hpux. They should change hpux. */
28 #undef FFS /* Some systems define this in param.h. */
36 #include "diagnostic.h"
37 #include "langhooks.h"
38 #include "langhooks-def.h"
40 #define obstack_chunk_alloc xmalloc
41 #define obstack_chunk_free free
43 #define output_formatted_integer(BUFFER, FORMAT, INTEGER) \
46 sprintf ((BUFFER)->digit_buffer, FORMAT, INTEGER); \
47 output_add_string (BUFFER, (BUFFER)->digit_buffer); \
51 #define output_text_length(BUFFER) (BUFFER)->line_length
52 #define is_starting_newline(BUFFER) (output_text_length (BUFFER) == 0)
53 #define line_wrap_cutoff(BUFFER) (BUFFER)->state.maximum_length
54 #define prefix_was_emitted_for(BUFFER) (BUFFER)->state.emitted_prefix_p
57 static void output_flush PARAMS ((output_buffer *));
58 static void output_do_verbatim PARAMS ((output_buffer *, text_info *));
59 static void output_buffer_to_stream PARAMS ((output_buffer *));
60 static void output_format PARAMS ((output_buffer *, text_info *));
61 static void output_indent PARAMS ((output_buffer *));
63 static char *vbuild_message_string PARAMS ((const char *, va_list))
64 ATTRIBUTE_PRINTF (1, 0);
65 static char *build_message_string PARAMS ((const char *, ...))
67 static void format_with_decl PARAMS ((output_buffer *, text_info *, tree));
68 static void diagnostic_for_decl PARAMS ((diagnostic_info *, tree));
69 static void set_real_maximum_length PARAMS ((output_buffer *));
71 static void output_unsigned_decimal PARAMS ((output_buffer *, unsigned int));
72 static void output_long_decimal PARAMS ((output_buffer *, long int));
73 static void output_long_unsigned_decimal PARAMS ((output_buffer *,
75 static void output_octal PARAMS ((output_buffer *, unsigned int));
76 static void output_long_octal PARAMS ((output_buffer *, unsigned long int));
77 static void output_hexadecimal PARAMS ((output_buffer *, unsigned int));
78 static void output_long_hexadecimal PARAMS ((output_buffer *,
80 static void output_append_r PARAMS ((output_buffer *, const char *, int));
81 static void wrap_text PARAMS ((output_buffer *, const char *, const char *));
82 static void maybe_wrap_text PARAMS ((output_buffer *, const char *,
84 static void output_clear_data PARAMS ((output_buffer *));
86 static void default_diagnostic_starter PARAMS ((diagnostic_context *,
88 static void default_diagnostic_finalizer PARAMS ((diagnostic_context *,
91 static void error_recursion PARAMS ((diagnostic_context *)) ATTRIBUTE_NORETURN;
92 static bool text_specifies_location PARAMS ((text_info *, location_t *));
94 extern int rtl_dump_and_exit;
95 extern int warnings_are_errors;
97 /* A diagnostic_context surrogate for stderr. */
98 static diagnostic_context global_diagnostic_context;
99 diagnostic_context *global_dc = &global_diagnostic_context;
102 /* Subroutine of output_set_maximum_length. Set up BUFFER's
103 internal maximum characters per line. */
105 set_real_maximum_length (buffer)
106 output_buffer *buffer;
108 /* If we're told not to wrap lines then do the obvious thing. In case
109 we'll emit prefix only once per diagnostic message, it is appropriate
110 not to increase unnecessarily the line-length cut-off. */
111 if (!output_is_line_wrapping (buffer)
112 || output_prefixing_rule (buffer) == DIAGNOSTICS_SHOW_PREFIX_ONCE
113 || output_prefixing_rule (buffer) == DIAGNOSTICS_SHOW_PREFIX_NEVER)
114 line_wrap_cutoff (buffer) = output_line_cutoff (buffer);
117 int prefix_length = buffer->state.prefix ?
118 strlen (buffer->state.prefix) : 0;
119 /* If the prefix is ridiculously too long, output at least
121 if (output_line_cutoff (buffer) - prefix_length < 32)
122 line_wrap_cutoff (buffer) = output_line_cutoff (buffer) + 32;
124 line_wrap_cutoff (buffer) = output_line_cutoff (buffer);
128 /* Sets the number of maximum characters per line BUFFER can output
129 in line-wrapping mode. A LENGTH value 0 suppresses line-wrapping. */
131 output_set_maximum_length (buffer, length)
132 output_buffer *buffer;
135 output_line_cutoff (buffer) = length;
136 set_real_maximum_length (buffer);
139 /* Sets BUFFER's PREFIX. */
141 output_set_prefix (buffer, prefix)
142 output_buffer *buffer;
145 buffer->state.prefix = prefix;
146 set_real_maximum_length (buffer);
147 prefix_was_emitted_for (buffer) = false;
148 output_indentation (buffer) = 0;
151 /* Return a pointer to the last character emitted in the output
152 BUFFER area. A NULL pointer means no character available. */
154 output_last_position (buffer)
155 const output_buffer *buffer;
157 const char *p = NULL;
159 if (obstack_base (&buffer->obstack) != obstack_next_free (&buffer->obstack))
160 p = ((const char *) obstack_next_free (&buffer->obstack)) - 1;
164 /* Free BUFFER's prefix, a previously malloc'd string. */
166 output_destroy_prefix (buffer)
167 output_buffer *buffer;
169 if (buffer->state.prefix != NULL)
171 free ((char *) buffer->state.prefix);
172 buffer->state.prefix = NULL;
176 /* Zero out any text output so far in BUFFER. */
178 output_clear_message_text (buffer)
179 output_buffer *buffer;
181 obstack_free (&buffer->obstack, obstack_base (&buffer->obstack));
182 output_text_length (buffer) = 0;
185 /* Zero out any formatting data used so far by BUFFER. */
187 output_clear_data (buffer)
188 output_buffer *buffer;
190 prefix_was_emitted_for (buffer) = false;
191 output_indentation (buffer) = 0;
194 /* Construct an output BUFFER with PREFIX and of MAXIMUM_LENGTH
195 characters per line. */
197 init_output_buffer (buffer, prefix, maximum_length)
198 output_buffer *buffer;
202 memset (buffer, 0, sizeof (output_buffer));
203 obstack_init (&buffer->obstack);
204 output_buffer_attached_stream (buffer) = stderr;
205 output_line_cutoff (buffer) = maximum_length;
206 output_prefixing_rule (buffer) = diagnostic_prefixing_rule (global_dc);
207 output_set_prefix (buffer, prefix);
208 output_text_length (buffer) = 0;
209 output_clear_data (buffer);
212 /* Reinitialize BUFFER. */
214 output_clear (buffer)
215 output_buffer *buffer;
217 output_clear_message_text (buffer);
218 output_clear_data (buffer);
221 /* Finishes constructing a NULL-terminated character string representing
222 the BUFFERed message. */
224 output_finalize_message (buffer)
225 output_buffer *buffer;
227 obstack_1grow (&buffer->obstack, '\0');
228 return output_message_text (buffer);
231 /* Return the amount of characters BUFFER can accept to
234 output_space_left (buffer)
235 const output_buffer *buffer;
237 return line_wrap_cutoff (buffer) - output_text_length (buffer);
240 /* Write out BUFFER's prefix. */
242 output_emit_prefix (buffer)
243 output_buffer *buffer;
245 if (buffer->state.prefix != NULL)
247 switch (output_prefixing_rule (buffer))
250 case DIAGNOSTICS_SHOW_PREFIX_NEVER:
253 case DIAGNOSTICS_SHOW_PREFIX_ONCE:
254 if (prefix_was_emitted_for (buffer))
256 output_indent (buffer);
259 output_indentation (buffer) += 3;
262 case DIAGNOSTICS_SHOW_PREFIX_EVERY_LINE:
264 int prefix_length = strlen (buffer->state.prefix);
265 output_append_r (buffer, buffer->state.prefix, prefix_length);
266 prefix_was_emitted_for (buffer) = true;
273 /* Have BUFFER start a new line. */
275 output_add_newline (buffer)
276 output_buffer *buffer;
278 obstack_1grow (&buffer->obstack, '\n');
279 output_text_length (buffer) = 0;
282 /* Appends a character to BUFFER. */
284 output_add_character (buffer, c)
285 output_buffer *buffer;
288 if (output_is_line_wrapping (buffer) && output_space_left (buffer) <= 0)
289 output_add_newline (buffer);
290 obstack_1grow (&buffer->obstack, c);
291 ++output_text_length (buffer);
294 /* Adds a space to BUFFER. */
296 output_add_space (buffer)
297 output_buffer *buffer;
299 if (output_is_line_wrapping (buffer) && output_space_left (buffer) <= 0)
301 output_add_newline (buffer);
304 obstack_1grow (&buffer->obstack, ' ');
305 ++output_text_length (buffer);
308 /* These functions format an INTEGER into BUFFER as suggested by their
311 output_decimal (buffer, i)
312 output_buffer *buffer;
315 output_formatted_integer (buffer, "%d", i);
319 output_long_decimal (buffer, i)
320 output_buffer *buffer;
323 output_formatted_integer (buffer, "%ld", i);
327 output_unsigned_decimal (buffer, i)
328 output_buffer *buffer;
331 output_formatted_integer (buffer, "%u", i);
335 output_long_unsigned_decimal (buffer, i)
336 output_buffer *buffer;
339 output_formatted_integer (buffer, "%lu", i);
343 output_octal (buffer, i)
344 output_buffer *buffer;
347 output_formatted_integer (buffer, "%o", i);
351 output_long_octal (buffer, i)
352 output_buffer *buffer;
355 output_formatted_integer (buffer, "%lo", i);
359 output_hexadecimal (buffer, i)
360 output_buffer *buffer;
363 output_formatted_integer (buffer, "%x", i);
367 output_long_hexadecimal (buffer, i)
368 output_buffer *buffer;
371 output_formatted_integer (buffer, "%lx", i);
374 /* Append to BUFFER a string specified by its STARTING character
377 output_append_r (buffer, start, length)
378 output_buffer *buffer;
382 obstack_grow (&buffer->obstack, start, length);
383 output_text_length (buffer) += length;
386 /* Append a string deliminated by START and END to BUFFER. No wrapping is
387 done. However, if beginning a new line then emit BUFFER->state.prefix
388 and skip any leading whitespace if appropriate. The caller must ensure
389 that it is safe to do so. */
391 output_append (buffer, start, end)
392 output_buffer *buffer;
396 /* Emit prefix and skip whitespace if we're starting a new line. */
397 if (is_starting_newline (buffer))
399 output_emit_prefix (buffer);
400 if (output_is_line_wrapping (buffer))
401 while (start != end && *start == ' ')
404 output_append_r (buffer, start, end - start);
408 output_indent (buffer)
409 output_buffer *buffer;
411 int n = output_indentation (buffer);
414 for (i = 0; i < n; ++i)
415 output_add_character (buffer, ' ');
418 /* Wrap a text delimited by START and END into BUFFER. */
420 wrap_text (buffer, start, end)
421 output_buffer *buffer;
425 bool is_wrapping = output_is_line_wrapping (buffer);
429 /* Dump anything bordered by whitespaces. */
431 const char *p = start;
432 while (p != end && *p != ' ' && *p != '\n')
434 if (is_wrapping && p - start >= output_space_left (buffer))
435 output_add_newline (buffer);
436 output_append (buffer, start, p);
440 if (start != end && *start == ' ')
442 output_add_space (buffer);
445 if (start != end && *start == '\n')
447 output_add_newline (buffer);
453 /* Same as wrap_text but wrap text only when in line-wrapping mode. */
455 maybe_wrap_text (buffer, start, end)
456 output_buffer *buffer;
460 if (output_is_line_wrapping (buffer))
461 wrap_text (buffer, start, end);
463 output_append (buffer, start, end);
467 /* Append a STRING to BUFFER; the STRING might be line-wrapped if in
470 output_add_string (buffer, str)
471 output_buffer *buffer;
474 maybe_wrap_text (buffer, str, str + (str ? strlen (str) : 0));
477 /* Flush the content of BUFFER onto the attached stream,
481 output_buffer_to_stream (buffer)
482 output_buffer *buffer;
484 const char *text = output_finalize_message (buffer);
485 fputs (text, output_buffer_attached_stream (buffer));
486 output_clear_message_text (buffer);
489 /* Format a message pointed to by TEXT. The following format specifiers are
490 recognized as being language independent:
491 %d, %i: (signed) integer in base ten.
492 %u: unsigned integer in base ten.
493 %o: unsigned integer in base eight.
494 %x: unsigned integer in base sixteen.
495 %ld, %li, %lo, %lu, %lx: long versions of the above.
499 %*.s: a substring the length of which is specified by an integer.
502 output_format (buffer, text)
503 output_buffer *buffer;
506 for (; *text->format_spec; ++text->format_spec)
508 bool long_integer = 0;
512 const char *p = text->format_spec;
513 while (*p && *p != '%')
515 wrap_text (buffer, text->format_spec, p);
516 text->format_spec = p;
519 if (*text->format_spec == '\0')
522 /* We got a '%'. Let's see what happens. Record whether we're
523 parsing a long integer format specifier. */
524 if (*++text->format_spec == 'l')
530 /* Handle %c, %d, %i, %ld, %li, %lo, %lu, %lx, %o, %s, %u,
531 %x, %.*s; %%. And nothing else. Front-ends should install
532 printers to grok language specific format specifiers. */
533 switch (*text->format_spec)
536 output_add_character (buffer, va_arg (*text->args_ptr, int));
542 output_long_decimal (buffer, va_arg (*text->args_ptr, long int));
544 output_decimal (buffer, va_arg (*text->args_ptr, int));
549 output_long_octal (buffer,
550 va_arg (*text->args_ptr, unsigned long int));
552 output_octal (buffer, va_arg (*text->args_ptr, unsigned int));
556 output_add_string (buffer, va_arg (*text->args_ptr, const char *));
561 output_long_unsigned_decimal
562 (buffer, va_arg (*text->args_ptr, long unsigned int));
564 output_unsigned_decimal
565 (buffer, va_arg (*text->args_ptr, unsigned int));
570 output_long_hexadecimal
571 (buffer, va_arg (*text->args_ptr, unsigned long int));
574 (buffer, va_arg (*text->args_ptr, unsigned int));
578 output_add_character (buffer, '%');
583 const location_t *locus = va_arg (*text->args_ptr, location_t *);
584 output_add_string (buffer, "file '");
585 output_add_string (buffer, locus->file);
586 output_add_string (buffer, "', line ");
587 output_decimal (buffer, locus->line);
595 /* We handle no precision specifier but `%.*s'. */
596 if (*++text->format_spec != '*')
598 else if (*++text->format_spec != 's')
600 n = va_arg (*text->args_ptr, int);
601 s = va_arg (*text->args_ptr, const char *);
602 output_append (buffer, s, s + n);
607 if (!buffer->format_decoder
608 || !(*buffer->format_decoder) (buffer, text))
610 /* Hmmm. The front-end failed to install a format translator
611 but called us with an unrecognized format. Sorry. */
619 vbuild_message_string (msg, ap)
625 vasprintf (&str, msg, ap);
629 /* Return a malloc'd string containing MSG formatted a la
630 printf. The caller is responsible for freeing the memory. */
632 build_message_string VPARAMS ((const char *msg, ...))
637 VA_FIXEDARG (ap, const char *, msg);
639 str = vbuild_message_string (msg, ap);
646 /* Same as diagnsotic_build_prefix, but only the source FILE is given. */
648 file_name_as_prefix (f)
651 return build_message_string ("%s: ", f);
654 /* Format a message into BUFFER a la printf. */
656 output_printf VPARAMS ((struct output_buffer *buffer, const char *msgid, ...))
660 VA_FIXEDARG (ap, output_buffer *, buffer);
661 VA_FIXEDARG (ap, const char *, msgid);
664 text.format_spec = _(msgid);
665 output_format (buffer, &text);
669 /* Print a message relevant to the given DECL. */
671 format_with_decl (buffer, text, decl)
672 output_buffer *buffer;
678 /* Do magic to get around lack of varargs support for insertion
679 of arguments into existing list. We know that the decl is first;
680 we ass_u_me that it will be printed with "%s". */
681 for (p = text->format_spec; *p; ++p)
687 else if (*(p + 1) != 's')
694 /* Print the left-hand substring. */
695 maybe_wrap_text (buffer, text->format_spec, p);
697 if (*p == '%') /* Print the name. */
699 const char *const n = (DECL_NAME (decl)
700 ? (*lang_hooks.decl_printable_name) (decl, 2)
701 : _("((anonymous))"));
702 output_add_string (buffer, n);
706 if (ISALPHA (*(p - 1) & 0xFF))
711 if (*p) /* Print the rest of the message. */
713 text->format_spec = p;
714 output_format (buffer, text);
718 /* Flush the content of BUFFER onto the attached stream. */
720 output_flush (buffer)
721 output_buffer *buffer;
723 output_buffer_to_stream (buffer);
724 output_clear_data (buffer);
725 fputc ('\n', output_buffer_attached_stream (buffer));
726 fflush (output_buffer_attached_stream (buffer));
729 /* Helper subroutine of output_verbatim and verbatim. Do the appropriate
730 settings needed by BUFFER for a verbatim formatting. */
732 output_do_verbatim (buffer, text)
733 output_buffer *buffer;
736 diagnostic_prefixing_rule_t rule = output_prefixing_rule (buffer);
737 int line_cutoff = output_line_cutoff (buffer);
739 /* Set verbatim mode. */
740 output_prefixing_rule (buffer) = DIAGNOSTICS_SHOW_PREFIX_NEVER;
741 output_line_cutoff (buffer) = 0;
742 /* Do the actual formatting. */
743 output_format (buffer, text);
744 /* Restore previous settings. */
745 output_prefixing_rule (buffer) = rule;
746 output_line_cutoff (buffer) = line_cutoff;
749 /* Output MESSAGE verbatim into BUFFER. */
751 output_verbatim VPARAMS ((output_buffer *buffer, const char *msgid, ...))
755 VA_FIXEDARG (ap, output_buffer *, buffer);
756 VA_FIXEDARG (ap, const char *, msgid);
758 text.format_spec = msgid;
760 output_do_verbatim (buffer, &text);
765 /* Initialize the diagnostic message outputting machinery. */
767 diagnostic_initialize (context)
768 diagnostic_context *context;
770 memset (context, 0, sizeof *context);
771 obstack_init (&context->buffer.obstack);
773 /* By default, diagnostics are sent to stderr. */
774 output_buffer_attached_stream (&context->buffer) = stderr;
776 /* By default, we emit prefixes once per message. */
777 diagnostic_prefixing_rule (context) = DIAGNOSTICS_SHOW_PREFIX_ONCE;
779 diagnostic_starter (context) = default_diagnostic_starter;
780 diagnostic_finalizer (context) = default_diagnostic_finalizer;
781 context->warnings_are_errors_message = warnings_are_errors;
784 /* Returns true if the next format specifier in TEXT is a format specifier
785 for a location_t. If so, update the object pointed by LOCUS to reflect
786 the specified location in *TEXT->args_ptr. */
788 text_specifies_location (text, locus)
793 /* Skip any leading text. */
794 for (p = text->format_spec; *p && *p != '%'; ++p)
797 /* Extract the location information if any. */
798 if (*p == '%' && *++p == 'H')
800 *locus = *va_arg (*text->args_ptr, location_t *);
801 text->format_spec = p + 1;
809 diagnostic_set_info (diagnostic, msgid, args, file, line, kind)
810 diagnostic_info *diagnostic;
817 diagnostic->message.format_spec = msgid;
818 diagnostic->message.args_ptr = args;
819 /* If the diagnostic message doesn't specify a loccation,
820 use FILE and LINE. */
821 if (!text_specifies_location (&diagnostic->message, &diagnostic->location))
823 diagnostic->location.file = file;
824 diagnostic->location.line = line;
826 diagnostic->kind = kind;
829 /* Return a malloc'd string describing a location. The caller is
830 responsible for freeing the memory. */
832 diagnostic_build_prefix (diagnostic)
833 diagnostic_info *diagnostic;
835 static const char *const diagnostic_kind_text[] = {
836 #define DEFINE_DIAGNOSTIC_KIND(K, T) (T),
837 #include "diagnostic.def"
838 #undef DEFINE_DIAGNOSTIC_KIND
841 if (diagnostic->kind >= DK_LAST_DIAGNOSTIC_KIND)
844 return diagnostic->location.file
845 ? build_message_string ("%s:%d: %s",
846 diagnostic->location.file,
847 diagnostic->location.line,
848 _(diagnostic_kind_text[diagnostic->kind]))
849 : build_message_string ("%s: %s", progname,
850 _(diagnostic_kind_text[diagnostic->kind]));
853 /* Report a diagnostic MESSAGE at the declaration DECL.
854 MSG is a format string which uses %s to substitute the declaration
855 name; subsequent substitutions are a la output_format. */
857 diagnostic_for_decl (diagnostic, decl)
858 diagnostic_info *diagnostic;
861 if (global_dc->lock++)
862 error_recursion (global_dc);
864 if (diagnostic_count_diagnostic (global_dc, diagnostic->kind))
866 diagnostic_report_current_function (global_dc);
868 (&global_dc->buffer, diagnostic_build_prefix (diagnostic));
869 format_with_decl (&global_dc->buffer, &diagnostic->message, decl);
870 output_flush (&global_dc->buffer);
871 output_destroy_prefix (&global_dc->buffer);
877 diagnostic_flush_buffer (context)
878 diagnostic_context *context;
880 output_buffer_to_stream (&context->buffer);
881 fflush (output_buffer_attached_stream (&context->buffer));
884 /* Count a diagnostic. Return true if the message should be printed. */
886 diagnostic_count_diagnostic (context, kind)
887 diagnostic_context *context;
896 case DK_FATAL: case DK_ICE: case DK_SORRY:
897 case DK_ANACHRONISM: case DK_NOTE:
898 ++diagnostic_kind_count (context, kind);
902 if (!diagnostic_report_warnings_p ())
904 else if (!warnings_are_errors)
906 ++diagnostic_kind_count (context, DK_WARNING);
909 /* else fall through. */
912 if (kind == DK_WARNING && context->warnings_are_errors_message)
914 output_verbatim (&context->buffer,
915 "%s: warnings being treated as errors\n", progname);
916 context->warnings_are_errors_message = false;
918 ++diagnostic_kind_count (context, DK_ERROR);
925 /* Print a diagnostic MSGID on FILE. This is just fprintf, except it
926 runs its second argument through gettext. */
928 fnotice VPARAMS ((FILE *file, const char *msgid, ...))
931 VA_FIXEDARG (ap, FILE *, file);
932 VA_FIXEDARG (ap, const char *, msgid);
934 vfprintf (file, _(msgid), ap);
939 /* Print a fatal I/O error message. Argument are like printf.
940 Also include a system error message based on `errno'. */
942 fatal_io_error VPARAMS ((const char *msgid, ...))
946 VA_FIXEDARG (ap, const char *, msgid);
948 text.format_spec = _(msgid);
950 output_printf (&global_dc->buffer, "%s: %s: ", progname, xstrerror (errno));
951 output_format (&global_dc->buffer, &text);
952 output_flush (&global_dc->buffer);
954 exit (FATAL_EXIT_CODE);
957 /* Issue a pedantic warning MSGID. */
959 pedwarn VPARAMS ((const char *msgid, ...))
961 diagnostic_info diagnostic;
963 VA_FIXEDARG (ap, const char *, msgid);
965 diagnostic_set_info (&diagnostic, _(msgid), &ap, input_filename, lineno,
966 pedantic_error_kind ());
967 report_diagnostic (&diagnostic);
971 /* Issue a pedantic warning about DECL. */
973 pedwarn_with_decl VPARAMS ((tree decl, const char *msgid, ...))
975 diagnostic_info diagnostic;
977 VA_FIXEDARG (ap, tree, decl);
978 VA_FIXEDARG (ap, const char *, msgid);
980 diagnostic_set_info (&diagnostic, _(msgid), &ap,
981 DECL_SOURCE_FILE (decl), DECL_SOURCE_LINE (decl),
982 pedantic_error_kind ());
984 /* We don't want -pedantic-errors to cause the compilation to fail from
985 "errors" in system header files. Sometimes fixincludes can't fix what's
986 broken (eg: unsigned char bitfields - fixing it may change the alignment
987 which will cause programs to mysteriously fail because the C library
988 or kernel uses the original layout). There's no point in issuing a
989 warning either, it's just unnecessary noise. */
990 if (!DECL_IN_SYSTEM_HEADER (decl))
991 diagnostic_for_decl (&diagnostic, decl);
995 /* Same as above but within the context FILE and LINE. */
997 pedwarn_with_file_and_line VPARAMS ((const char *file, int line,
998 const char *msgid, ...))
1000 diagnostic_info diagnostic;
1001 VA_OPEN (ap, msgid);
1002 VA_FIXEDARG (ap, const char *, file);
1003 VA_FIXEDARG (ap, int, line);
1004 VA_FIXEDARG (ap, const char *, msgid);
1006 diagnostic_set_info (&diagnostic, _(msgid), &ap, file, line,
1007 pedantic_error_kind ());
1008 report_diagnostic (&diagnostic);
1012 /* Just apologize with MSGID. */
1014 sorry VPARAMS ((const char *msgid, ...))
1016 diagnostic_info diagnostic;
1018 VA_OPEN (ap, msgid);
1019 VA_FIXEDARG (ap, const char *, msgid);
1022 diagnostic_set_info (&diagnostic, _(msgid), &ap,
1023 input_filename, lineno, DK_SORRY);
1026 (&global_dc->buffer, diagnostic_build_prefix (&diagnostic));
1027 output_printf (&global_dc->buffer, "sorry, not implemented: ");
1028 output_format (&global_dc->buffer, &diagnostic.message);
1029 output_flush (&global_dc->buffer);
1033 /* Called when the start of a function definition is parsed,
1034 this function prints on stderr the name of the function. */
1036 announce_function (decl)
1041 if (rtl_dump_and_exit)
1042 verbatim ("%s ", IDENTIFIER_POINTER (DECL_NAME (decl)));
1044 verbatim (" %s", (*lang_hooks.decl_printable_name) (decl, 2));
1046 output_needs_newline (&global_dc->buffer) = true;
1047 diagnostic_set_last_function (global_dc);
1051 /* The default function to print out name of current function that caused
1054 lhd_print_error_function (context, file)
1055 diagnostic_context *context;
1058 if (diagnostic_last_function_changed (context))
1060 const char *old_prefix = output_prefix (&context->buffer);
1061 char *new_prefix = file ? build_message_string ("%s: ", file) : NULL;
1063 output_set_prefix (&context->buffer, new_prefix);
1065 if (current_function_decl == NULL)
1066 output_add_string (&context->buffer, _("At top level:"));
1069 if (TREE_CODE (TREE_TYPE (current_function_decl)) == METHOD_TYPE)
1071 (&context->buffer, "In member function `%s':",
1072 (*lang_hooks.decl_printable_name) (current_function_decl, 2));
1075 (&context->buffer, "In function `%s':",
1076 (*lang_hooks.decl_printable_name) (current_function_decl, 2));
1078 output_add_newline (&context->buffer);
1080 diagnostic_set_last_function (context);
1081 output_buffer_to_stream (&context->buffer);
1082 context->buffer.state.prefix = old_prefix;
1083 free ((char*) new_prefix);
1087 /* Prints out, if necessary, the name of the current function
1088 that caused an error. Called from all error and warning functions.
1089 We ignore the FILE parameter, as it cannot be relied upon. */
1092 diagnostic_report_current_function (context)
1093 diagnostic_context *context;
1095 diagnostic_report_current_module (context);
1096 (*lang_hooks.print_error_function) (context, input_filename);
1100 error_with_file_and_line VPARAMS ((const char *file, int line,
1101 const char *msgid, ...))
1103 diagnostic_info diagnostic;
1105 VA_OPEN (ap, msgid);
1106 VA_FIXEDARG (ap, const char *, file);
1107 VA_FIXEDARG (ap, int, line);
1108 VA_FIXEDARG (ap, const char *, msgid);
1110 diagnostic_set_info (&diagnostic, msgid, &ap, file, line, DK_ERROR);
1111 report_diagnostic (&diagnostic);
1116 error_with_decl VPARAMS ((tree decl, const char *msgid, ...))
1118 diagnostic_info diagnostic;
1119 VA_OPEN (ap, msgid);
1120 VA_FIXEDARG (ap, tree, decl);
1121 VA_FIXEDARG (ap, const char *, msgid);
1123 diagnostic_set_info (&diagnostic, msgid, &ap,
1124 DECL_SOURCE_FILE (decl), DECL_SOURCE_LINE (decl),
1126 diagnostic_for_decl (&diagnostic, decl);
1131 /* Report an error message. The arguments are like that of printf. */
1134 error VPARAMS ((const char *msgid, ...))
1136 diagnostic_info diagnostic;
1138 VA_OPEN (ap, msgid);
1139 VA_FIXEDARG (ap, const char *, msgid);
1141 diagnostic_set_info (&diagnostic, msgid, &ap, input_filename, lineno,
1143 report_diagnostic (&diagnostic);
1147 /* Likewise, except that the compilation is terminated after printing the
1151 fatal_error VPARAMS ((const char *msgid, ...))
1153 diagnostic_info diagnostic;
1155 VA_OPEN (ap, msgid);
1156 VA_FIXEDARG (ap, const char *, msgid);
1158 diagnostic_set_info (&diagnostic, msgid, &ap, input_filename, lineno,
1160 report_diagnostic (&diagnostic);
1163 fnotice (stderr, "compilation terminated.\n");
1164 exit (FATAL_EXIT_CODE);
1168 internal_error VPARAMS ((const char *msgid, ...))
1170 diagnostic_info diagnostic;
1172 VA_OPEN (ap, msgid);
1173 VA_FIXEDARG (ap, const char *, msgid);
1175 if (global_dc->lock)
1176 error_recursion (global_dc);
1178 #ifndef ENABLE_CHECKING
1179 if (errorcount > 0 || sorrycount > 0)
1181 fnotice (stderr, "%s:%d: confused by earlier errors, bailing out\n",
1182 input_filename, lineno);
1183 exit (FATAL_EXIT_CODE);
1187 if (global_dc->internal_error != 0)
1188 (*global_dc->internal_error) (_(msgid), &ap);
1190 diagnostic_set_info (&diagnostic, msgid, &ap, input_filename, lineno,
1192 report_diagnostic (&diagnostic);
1196 "Please submit a full bug report,\n\
1197 with preprocessed source if appropriate.\n\
1198 See %s for instructions.\n", GCCBUGURL);
1199 exit (FATAL_EXIT_CODE);
1203 warning_with_file_and_line VPARAMS ((const char *file, int line,
1204 const char *msgid, ...))
1206 diagnostic_info diagnostic;
1208 VA_OPEN (ap, msgid);
1209 VA_FIXEDARG (ap, const char *, file);
1210 VA_FIXEDARG (ap, int, line);
1211 VA_FIXEDARG (ap, const char *, msgid);
1213 diagnostic_set_info (&diagnostic, msgid, &ap, file, line, DK_WARNING);
1214 report_diagnostic (&diagnostic);
1219 warning_with_decl VPARAMS ((tree decl, const char *msgid, ...))
1221 diagnostic_info diagnostic;
1222 VA_OPEN (ap, msgid);
1223 VA_FIXEDARG (ap, tree, decl);
1224 VA_FIXEDARG (ap, const char *, msgid);
1226 diagnostic_set_info (&diagnostic, msgid, &ap,
1227 DECL_SOURCE_FILE (decl), DECL_SOURCE_LINE (decl),
1229 diagnostic_for_decl (&diagnostic, decl);
1234 warning VPARAMS ((const char *msgid, ...))
1236 diagnostic_info diagnostic;
1238 VA_OPEN (ap, msgid);
1239 VA_FIXEDARG (ap, const char *, msgid);
1241 diagnostic_set_info (&diagnostic, msgid, &ap, input_filename, lineno,
1243 report_diagnostic (&diagnostic);
1248 /* Same as above but use diagnostic_buffer. */
1251 verbatim VPARAMS ((const char *msgid, ...))
1254 VA_OPEN (ap, msgid);
1255 VA_FIXEDARG (ap, const char *, msgid);
1257 text.format_spec = _(msgid);
1258 text.args_ptr = ≈
1259 output_do_verbatim (&global_dc->buffer, &text);
1260 output_buffer_to_stream (&global_dc->buffer);
1264 /* Report a diagnostic message (an error or a warning) as specified by
1265 DC. This function is *the* subroutine in terms of which front-ends
1266 should implement their specific diagnostic handling modules. The
1267 front-end independent format specifiers are exactly those described
1268 in the documentation of output_format. */
1271 diagnostic_report_diagnostic (context, diagnostic)
1272 diagnostic_context *context;
1273 diagnostic_info *diagnostic;
1275 if (context->lock++)
1276 error_recursion (context);
1278 if (diagnostic_count_diagnostic (context, diagnostic->kind))
1280 (*diagnostic_starter (context)) (context, diagnostic);
1281 output_format (&context->buffer, &diagnostic->message);
1282 (*diagnostic_finalizer (context)) (context, diagnostic);
1283 output_flush (&context->buffer);
1289 /* Inform the user that an error occurred while trying to report some
1290 other error. This indicates catastrophic internal inconsistencies,
1291 so give up now. But do try to flush out the previous error.
1292 This mustn't use internal_error, that will cause infinite recursion. */
1295 error_recursion (context)
1296 diagnostic_context *context;
1298 if (context->lock < 3)
1299 output_flush (&context->buffer);
1302 "Internal compiler error: Error reporting routines re-entered.\n");
1304 "Please submit a full bug report,\n\
1305 with preprocessed source if appropriate.\n\
1306 See %s for instructions.\n", GCCBUGURL);
1307 exit (FATAL_EXIT_CODE);
1310 /* Given a partial pathname as input, return another pathname that
1311 shares no directory elements with the pathname of __FILE__. This
1312 is used by fancy_abort() to print `Internal compiler error in expr.c'
1313 instead of `Internal compiler error in ../../GCC/gcc/expr.c'. */
1316 trim_filename (name)
1319 static const char this_file[] = __FILE__;
1320 const char *p = name, *q = this_file;
1322 /* First skip any "../" in each filename. This allows us to give a proper
1323 reference to a file in a subdirectory. */
1324 while (p[0] == '.' && p[1] == '.'
1325 && (p[2] == DIR_SEPARATOR
1326 #ifdef DIR_SEPARATOR_2
1327 || p[2] == DIR_SEPARATOR_2
1332 while (q[0] == '.' && q[1] == '.'
1333 && (q[2] == DIR_SEPARATOR
1334 #ifdef DIR_SEPARATOR_2
1335 || p[2] == DIR_SEPARATOR_2
1340 /* Now skip any parts the two filenames have in common. */
1341 while (*p == *q && *p != 0 && *q != 0)
1344 /* Now go backwards until the previous directory separator. */
1345 while (p > name && p[-1] != DIR_SEPARATOR
1346 #ifdef DIR_SEPARATOR_2
1347 && p[-1] != DIR_SEPARATOR_2
1355 /* Report an internal compiler error in a friendly manner and without
1359 fancy_abort (file, line, function)
1362 const char *function;
1364 internal_error ("Internal compiler error in %s, at %s:%d",
1365 function, trim_filename (file), line);
1369 diagnostic_report_current_module (context)
1370 diagnostic_context *context;
1372 struct file_stack *p;
1374 if (output_needs_newline (&context->buffer))
1376 output_add_newline (&context->buffer);
1377 output_needs_newline (&context->buffer) = false;
1380 if (input_file_stack && input_file_stack->next != 0
1381 && diagnostic_last_module_changed (context))
1383 for (p = input_file_stack->next; p; p = p->next)
1384 if (p == input_file_stack->next)
1385 output_verbatim (&context->buffer,
1386 "In file included from %s:%d", p->name, p->line);
1388 output_verbatim (&context->buffer,
1389 ",\n from %s:%d", p->name, p->line);
1390 output_verbatim (&context->buffer, ":\n");
1391 diagnostic_set_last_module (context);
1396 default_diagnostic_starter (context, diagnostic)
1397 diagnostic_context *context;
1398 diagnostic_info *diagnostic;
1400 diagnostic_report_current_function (context);
1401 output_set_prefix (&context->buffer, diagnostic_build_prefix (diagnostic));
1405 default_diagnostic_finalizer (context, diagnostic)
1406 diagnostic_context *context;
1407 diagnostic_info *diagnostic __attribute__((unused));
1409 output_destroy_prefix (&context->buffer);
1413 warn_deprecated_use (node)
1416 if (node == 0 || !warn_deprecated_decl)
1420 warning ("`%s' is deprecated (declared at %s:%d)",
1421 IDENTIFIER_POINTER (DECL_NAME (node)),
1422 DECL_SOURCE_FILE (node), DECL_SOURCE_LINE (node));
1423 else if (TYPE_P (node))
1425 const char *what = NULL;
1426 tree decl = TYPE_STUB_DECL (node);
1428 if (TREE_CODE (TYPE_NAME (node)) == IDENTIFIER_NODE)
1429 what = IDENTIFIER_POINTER (TYPE_NAME (node));
1430 else if (TREE_CODE (TYPE_NAME (node)) == TYPE_DECL
1431 && DECL_NAME (TYPE_NAME (node)))
1432 what = IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (node)));
1437 warning ("`%s' is deprecated (declared at %s:%d)", what,
1438 DECL_SOURCE_FILE (decl), DECL_SOURCE_LINE (decl));
1440 warning ("`%s' is deprecated", what);
1443 warning ("type is deprecated (declared at %s:%d)",
1444 DECL_SOURCE_FILE (decl), DECL_SOURCE_LINE (decl));
1446 warning ("type is deprecated");