1 /* Language-independent diagnostic subroutines for the GNU C compiler
2 Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc.
3 Contributed by Gabriel Dos Reis <gdr@codesourcery.com>
5 This file is part of GNU CC.
7 GNU CC is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
12 GNU CC is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GNU CC; see the file COPYING. If not, write to
19 the Free Software Foundation, 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA. */
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"
38 #define obstack_chunk_alloc xmalloc
39 #define obstack_chunk_free free
41 #define output_formatted_integer(BUFFER, FORMAT, INTEGER) \
43 sprintf ((BUFFER)->digit_buffer, FORMAT, INTEGER); \
44 output_add_string (BUFFER, (BUFFER)->digit_buffer); \
47 #define output_text_length(BUFFER) (BUFFER)->line_length
48 #define is_starting_newline(BUFFER) (output_text_length (BUFFER) == 0)
49 #define output_prefix(BUFFER) (BUFFER)->state.prefix
50 #define line_wrap_cutoff(BUFFER) (BUFFER)->state.maximum_length
51 #define prefix_was_emitted_for(BUFFER) (BUFFER)->state.emitted_prefix_p
52 #define output_buffer_ptr_to_format_args(BUFFER) (BUFFER)->state.format_args
54 #define diagnostic_args output_buffer_ptr_to_format_args (diagnostic_buffer)
55 #define diagnostic_msg output_buffer_text_cursor (diagnostic_buffer)
58 static void diagnostic_finish PARAMS ((output_buffer *));
59 static void output_do_verbatim PARAMS ((output_buffer *,
60 const char *, va_list *));
61 static void output_buffer_to_stream PARAMS ((output_buffer *));
62 static void output_format PARAMS ((output_buffer *));
63 static void output_indent PARAMS ((output_buffer *));
65 static char *vbuild_message_string PARAMS ((const char *, va_list))
66 ATTRIBUTE_PRINTF (1, 0);
67 static char *build_message_string PARAMS ((const char *, ...))
69 static void output_do_printf PARAMS ((output_buffer *, const char *))
70 ATTRIBUTE_PRINTF (2, 0);
71 static void format_with_decl PARAMS ((output_buffer *, tree));
72 static void diagnostic_for_decl PARAMS ((tree, const char *, va_list *, int));
73 static void set_real_maximum_length PARAMS ((output_buffer *));
75 static void output_unsigned_decimal PARAMS ((output_buffer *, unsigned int));
76 static void output_long_decimal PARAMS ((output_buffer *, long int));
77 static void output_long_unsigned_decimal PARAMS ((output_buffer *,
79 static void output_octal PARAMS ((output_buffer *, unsigned int));
80 static void output_long_octal PARAMS ((output_buffer *, unsigned long int));
81 static void output_hexadecimal PARAMS ((output_buffer *, unsigned int));
82 static void output_long_hexadecimal PARAMS ((output_buffer *,
84 static void output_append_r PARAMS ((output_buffer *, const char *, int));
85 static void wrap_text PARAMS ((output_buffer *, const char *, const char *));
86 static void maybe_wrap_text PARAMS ((output_buffer *, const char *,
88 static void clear_diagnostic_info PARAMS ((output_buffer *));
90 static void default_diagnostic_starter PARAMS ((output_buffer *,
91 diagnostic_context *));
92 static void default_diagnostic_finalizer PARAMS ((output_buffer *,
93 diagnostic_context *));
95 static void error_recursion PARAMS ((void)) ATTRIBUTE_NORETURN;
97 extern int rtl_dump_and_exit;
98 extern int warnings_are_errors;
100 /* A diagnostic_context surrogate for stderr. */
101 static diagnostic_context global_diagnostic_context;
102 diagnostic_context *global_dc = &global_diagnostic_context;
104 /* This will be removed shortly. */
105 output_buffer *diagnostic_buffer = &global_diagnostic_context.buffer;
107 /* Function of last error message;
108 more generally, function such that if next error message is in it
109 then we don't have to mention the function name. */
110 static tree last_error_function = NULL;
112 /* Used to detect when input_file_stack has changed since last described. */
113 static int last_error_tick;
115 /* Called by report_error_function to print out function name.
116 Default may be overridden by language front-ends. */
118 void (*print_error_function) PARAMS ((diagnostic_context *, const char *))
119 = default_print_error_function;
121 /* Prevent recursion into the error handler. */
122 static int diagnostic_lock;
125 /* Return truthvalue if current input file is different from the most recent
126 file involved in a diagnostic message. */
129 error_module_changed ()
131 return last_error_tick != input_file_stack_tick;
134 /* Remember current file as being the most recent file involved in a
135 diagnostic message. */
138 record_last_error_module ()
140 last_error_tick = input_file_stack_tick;
143 /* Same as error_module_changed, but for function. */
146 error_function_changed ()
148 return last_error_function != current_function_decl;
151 /* Same as record_last_error_module, but for function. */
154 record_last_error_function ()
156 last_error_function = current_function_decl;
159 /* Initialize the diagnostic message outputting machinery. */
162 diagnostic_initialize (context)
163 diagnostic_context *context;
165 memset (context, 0, sizeof *context);
166 obstack_init (&context->buffer.obstack);
168 /* By default, diagnostics are sent to stderr. */
169 output_buffer_attached_stream (&context->buffer) = stderr;
171 /* By default, we emit prefixes once per message. */
172 diagnostic_prefixing_rule (context) = DIAGNOSTICS_SHOW_PREFIX_ONCE;
174 diagnostic_starter (context) = default_diagnostic_starter;
175 diagnostic_finalizer (context) = default_diagnostic_finalizer;
178 /* Returns true if BUFFER is in line-wrappind mode. */
181 output_is_line_wrapping (buffer)
182 output_buffer *buffer;
184 return diagnostic_line_cutoff (buffer) > 0;
187 /* Return BUFFER's prefix. */
190 output_get_prefix (buffer)
191 const output_buffer *buffer;
193 return output_prefix (buffer);
196 /* Subroutine of output_set_maximum_length. Set up BUFFER's
197 internal maximum characters per line. */
200 set_real_maximum_length (buffer)
201 output_buffer *buffer;
203 /* If we're told not to wrap lines then do the obvious thing. In case
204 we'll emit prefix only once per diagnostic message, it is appropriate
205 not to increase unncessarily the line-length cut-off. */
206 if (! output_is_line_wrapping (buffer)
207 || diagnostic_prefixing_rule (buffer) == DIAGNOSTICS_SHOW_PREFIX_ONCE
208 || diagnostic_prefixing_rule (buffer) == DIAGNOSTICS_SHOW_PREFIX_NEVER)
209 line_wrap_cutoff (buffer) = diagnostic_line_cutoff (buffer);
213 output_prefix (buffer) ? strlen (output_prefix (buffer)) : 0;
214 /* If the prefix is ridiculously too long, output at least
216 if (diagnostic_line_cutoff (buffer) - prefix_length < 32)
217 line_wrap_cutoff (buffer) = diagnostic_line_cutoff (buffer) + 32;
219 line_wrap_cutoff (buffer) = diagnostic_line_cutoff (buffer);
223 /* Sets the number of maximum characters per line BUFFER can output
224 in line-wrapping mode. A LENGTH value 0 suppresses line-wrapping. */
227 output_set_maximum_length (buffer, length)
228 output_buffer *buffer;
231 diagnostic_line_cutoff (buffer) = length;
232 set_real_maximum_length (buffer);
235 /* Sets BUFFER's PREFIX. */
238 output_set_prefix (buffer, prefix)
239 output_buffer *buffer;
242 output_prefix (buffer) = prefix;
243 set_real_maximum_length (buffer);
244 prefix_was_emitted_for (buffer) = 0;
245 output_indentation (buffer) = 0;
248 /* Return a pointer to the last character emitted in the output
249 BUFFER area. A NULL pointer means no character available. */
251 output_last_position (buffer)
252 const output_buffer *buffer;
254 const char *p = NULL;
256 if (obstack_base (&buffer->obstack) != obstack_next_free (&buffer->obstack))
257 p = ((const char *) obstack_next_free (&buffer->obstack)) - 1;
261 /* Free BUFFER's prefix, a previously malloc'd string. */
264 output_destroy_prefix (buffer)
265 output_buffer *buffer;
267 if (output_prefix (buffer) != NULL)
269 free ((char *) output_prefix (buffer));
270 output_prefix (buffer) = NULL;
274 /* Zero out any text output so far in BUFFER. */
277 output_clear_message_text (buffer)
278 output_buffer *buffer;
280 obstack_free (&buffer->obstack, obstack_base (&buffer->obstack));
281 output_text_length (buffer) = 0;
284 /* Zero out any diagnostic data used so far by BUFFER. */
287 clear_diagnostic_info (buffer)
288 output_buffer *buffer;
290 output_buffer_text_cursor (buffer) = NULL;
291 output_buffer_ptr_to_format_args (buffer) = NULL;
292 prefix_was_emitted_for (buffer) = 0;
293 output_indentation (buffer) = 0;
296 /* Construct an output BUFFER with PREFIX and of MAXIMUM_LENGTH
297 characters per line. */
300 init_output_buffer (buffer, prefix, maximum_length)
301 output_buffer *buffer;
305 memset (buffer, 0, sizeof (output_buffer));
306 obstack_init (&buffer->obstack);
307 output_buffer_attached_stream (buffer) = stderr;
308 diagnostic_line_cutoff (buffer) = maximum_length;
309 diagnostic_prefixing_rule (buffer) = diagnostic_prefixing_rule (global_dc);
310 output_set_prefix (buffer, prefix);
311 output_text_length (buffer) = 0;
312 clear_diagnostic_info (buffer);
315 /* Reinitialize BUFFER. */
318 output_clear (buffer)
319 output_buffer *buffer;
321 output_clear_message_text (buffer);
322 clear_diagnostic_info (buffer);
325 /* Finishes constructing a NULL-terminated character string representing
326 the BUFFERed message. */
329 output_finalize_message (buffer)
330 output_buffer *buffer;
332 obstack_1grow (&buffer->obstack, '\0');
333 return output_message_text (buffer);
337 flush_diagnostic_buffer ()
339 output_buffer_to_stream (diagnostic_buffer);
340 fflush (output_buffer_attached_stream (diagnostic_buffer));
343 /* Return the amount of characters BUFFER can accept to
347 output_space_left (buffer)
348 const output_buffer *buffer;
350 return line_wrap_cutoff (buffer) - output_text_length (buffer);
353 /* Write out BUFFER's prefix. */
356 output_emit_prefix (buffer)
357 output_buffer *buffer;
359 if (output_prefix (buffer) != NULL)
361 switch (diagnostic_prefixing_rule (buffer))
364 case DIAGNOSTICS_SHOW_PREFIX_NEVER:
367 case DIAGNOSTICS_SHOW_PREFIX_ONCE:
368 if (prefix_was_emitted_for (buffer))
370 output_indent (buffer);
373 output_indentation (buffer) += 3;
376 case DIAGNOSTICS_SHOW_PREFIX_EVERY_LINE:
378 int prefix_length = strlen (output_prefix (buffer));
379 output_append_r (buffer, output_prefix (buffer), prefix_length);
380 prefix_was_emitted_for (buffer) = 1;
387 /* Have BUFFER start a new line. */
390 output_add_newline (buffer)
391 output_buffer *buffer;
393 obstack_1grow (&buffer->obstack, '\n');
394 output_text_length (buffer) = 0;
397 /* Appends a character to BUFFER. */
400 output_add_character (buffer, c)
401 output_buffer *buffer;
404 if (output_is_line_wrapping (buffer) && output_space_left (buffer) <= 0)
405 output_add_newline (buffer);
406 obstack_1grow (&buffer->obstack, c);
407 ++output_text_length (buffer);
410 /* Adds a space to BUFFER. */
413 output_add_space (buffer)
414 output_buffer *buffer;
416 if (output_is_line_wrapping (buffer) && output_space_left (buffer) <= 0)
418 output_add_newline (buffer);
421 obstack_1grow (&buffer->obstack, ' ');
422 ++output_text_length (buffer);
425 /* These functions format an INTEGER into BUFFER as suggested by their
429 output_decimal (buffer, i)
430 output_buffer *buffer;
433 output_formatted_integer (buffer, "%d", i);
437 output_long_decimal (buffer, i)
438 output_buffer *buffer;
441 output_formatted_integer (buffer, "%ld", i);
445 output_unsigned_decimal (buffer, i)
446 output_buffer *buffer;
449 output_formatted_integer (buffer, "%u", i);
453 output_long_unsigned_decimal (buffer, i)
454 output_buffer *buffer;
457 output_formatted_integer (buffer, "%lu", i);
461 output_octal (buffer, i)
462 output_buffer *buffer;
465 output_formatted_integer (buffer, "%o", i);
469 output_long_octal (buffer, i)
470 output_buffer *buffer;
473 output_formatted_integer (buffer, "%lo", i);
477 output_hexadecimal (buffer, i)
478 output_buffer *buffer;
481 output_formatted_integer (buffer, "%x", i);
485 output_long_hexadecimal (buffer, i)
486 output_buffer *buffer;
489 output_formatted_integer (buffer, "%lx", i);
492 /* Append to BUFFER a string specified by its STARTING character
496 output_append_r (buffer, start, length)
497 output_buffer *buffer;
501 obstack_grow (&buffer->obstack, start, length);
502 output_text_length (buffer) += length;
505 /* Append a string deliminated by START and END to BUFFER. No wrapping is
506 done. However, if beginning a new line then emit output_prefix (BUFFER)
507 and skip any leading whitespace if appropriate. The caller must ensure
508 that it is safe to do so. */
511 output_append (buffer, start, end)
512 output_buffer *buffer;
516 /* Emit prefix and skip whitespace if we're starting a new line. */
517 if (is_starting_newline (buffer))
519 output_emit_prefix (buffer);
520 if (output_is_line_wrapping (buffer))
521 while (start != end && *start == ' ')
524 output_append_r (buffer, start, end - start);
528 output_indent (buffer)
529 output_buffer *buffer;
531 int n = output_indentation (buffer);
534 for (i = 0; i < n; ++i)
535 output_add_character (buffer, ' ');
538 /* Wrap a text delimited by START and END into BUFFER. */
541 wrap_text (buffer, start, end)
542 output_buffer *buffer;
546 int is_wrapping = output_is_line_wrapping (buffer);
550 /* Dump anything bodered by whitespaces. */
552 const char *p = start;
553 while (p != end && *p != ' ' && *p != '\n')
555 if (is_wrapping && p - start >= output_space_left (buffer))
556 output_add_newline (buffer);
557 output_append (buffer, start, p);
561 if (start != end && *start == ' ')
563 output_add_space (buffer);
566 if (start != end && *start == '\n')
568 output_add_newline (buffer);
574 /* Same as wrap_text but wrap text only when in line-wrapping mode. */
577 maybe_wrap_text (buffer, start, end)
578 output_buffer *buffer;
582 if (output_is_line_wrapping (buffer))
583 wrap_text (buffer, start, end);
585 output_append (buffer, start, end);
589 /* Append a STRING to BUFFER; the STRING might be line-wrapped if in
593 output_add_string (buffer, str)
594 output_buffer *buffer;
597 maybe_wrap_text (buffer, str, str + (str ? strlen (str) : 0));
600 /* Flush the content of BUFFER onto the attached stream,
604 output_buffer_to_stream (buffer)
605 output_buffer *buffer;
607 const char *text = output_finalize_message (buffer);
608 fputs (text, output_buffer_attached_stream (buffer));
609 output_clear_message_text (buffer);
612 /* Format a message pointed to by output_buffer_text_cursor (BUFFER) using
613 output_buffer_format_args (BUFFER) as appropriate. The following format
614 specifiers are recognized as being language independent:
615 %d, %i: (signed) integer in base ten.
616 %u: unsigned integer in base ten.
617 %o: unsigned integer in base eight.
618 %x: unsigned integer in base sixteen.
619 %ld, %li, %lo, %lu, %lx: long versions of the above.
623 %*.s: a substring the length of which is specified by an integer. */
626 output_format (buffer)
627 output_buffer *buffer;
629 for (; *output_buffer_text_cursor (buffer);
630 ++output_buffer_text_cursor (buffer))
632 int long_integer = 0;
636 const char *p = output_buffer_text_cursor (buffer);
637 while (*p && *p != '%')
639 wrap_text (buffer, output_buffer_text_cursor (buffer), p);
640 output_buffer_text_cursor (buffer) = p;
643 if (!*output_buffer_text_cursor (buffer))
646 /* We got a '%'. Let's see what happens. Record whether we're
647 parsing a long integer format specifier. */
648 if (*++output_buffer_text_cursor (buffer) == 'l')
651 ++output_buffer_text_cursor (buffer);
654 /* Handle %c, %d, %i, %ld, %li, %lo, %lu, %lx, %o, %s, %u,
655 %x, %.*s; %%. And nothing else. Front-ends should install
656 printers to grok language specific format specifiers. */
657 switch (*output_buffer_text_cursor (buffer))
661 (buffer, va_arg (output_buffer_format_args (buffer), int));
668 (buffer, va_arg (output_buffer_format_args (buffer), long int));
671 (buffer, va_arg (output_buffer_format_args (buffer), int));
676 output_long_octal (buffer,
677 va_arg (output_buffer_format_args (buffer),
680 output_octal (buffer,
681 va_arg (output_buffer_format_args (buffer),
686 output_add_string (buffer,
687 va_arg (output_buffer_format_args (buffer),
693 output_long_unsigned_decimal
694 (buffer, va_arg (output_buffer_format_args (buffer),
697 output_unsigned_decimal
698 (buffer, va_arg (output_buffer_format_args (buffer),
704 output_long_hexadecimal
705 (buffer, va_arg (output_buffer_format_args (buffer),
709 (buffer, va_arg (output_buffer_format_args (buffer),
714 output_add_character (buffer, '%');
721 /* We handle no precision specifier but `%.*s'. */
722 if (*++output_buffer_text_cursor (buffer) != '*')
724 else if (*++output_buffer_text_cursor (buffer) != 's')
726 n = va_arg (output_buffer_format_args (buffer), int);
727 s = va_arg (output_buffer_format_args (buffer), const char *);
728 output_append (buffer, s, s + n);
733 if (!buffer->format_decoder || !(*buffer->format_decoder) (buffer))
735 /* Hmmm. The front-end failed to install a format translator
736 but called us with an unrecognized format. Sorry. */
744 vbuild_message_string (msg, ap)
750 vasprintf (&str, msg, ap);
754 /* Return a malloc'd string containing MSG formatted a la
755 printf. The caller is reponsible for freeing the memory. */
758 build_message_string VPARAMS ((const char *msg, ...))
760 #ifndef ANSI_PROTOTYPES
768 #ifndef ANSI_PROTOTYPES
769 msg = va_arg (ap, const char *);
772 str = vbuild_message_string (msg, ap);
779 /* Return a malloc'd string describing a location. The caller is
780 responsible for freeing the memory. */
783 context_as_prefix (file, line, warn)
791 return build_message_string (_("%s:%d: warning: "), file, line);
793 return build_message_string ("%s:%d: ", file, line);
798 return build_message_string (_("%s: warning: "), progname);
800 return build_message_string ("%s: ", progname);
804 /* Same as context_as_prefix, but only the source FILE is given. */
807 file_name_as_prefix (f)
810 return build_message_string ("%s: ", f);
813 /* Format a MESSAGE into BUFFER. Automatically wrap lines. */
816 output_do_printf (buffer, msg)
817 output_buffer *buffer;
820 char *message = vbuild_message_string (msg,
821 output_buffer_format_args (buffer));
823 wrap_text (buffer, message, message + strlen (message));
828 /* Format a message into BUFFER a la printf. */
831 output_printf VPARAMS ((struct output_buffer *buffer, const char *msgid, ...))
833 #ifndef ANSI_PROTOTYPES
834 struct output_buffer *buffer;
840 VA_START (ap, msgid);
841 #ifndef ANSI_PROTOTYPES
842 buffer = va_arg (ap, output_buffer *);
843 msgid = va_arg (ap, const char *);
845 old_args = output_buffer_ptr_to_format_args (buffer);
846 output_buffer_ptr_to_format_args (buffer) = ≈
847 output_do_printf (buffer, _(msgid));
848 output_buffer_ptr_to_format_args (buffer) = old_args;
852 /* Print a message relevant to the given DECL. */
855 format_with_decl (buffer, decl)
856 output_buffer *buffer;
861 /* Do magic to get around lack of varargs support for insertion
862 of arguments into existing list. We know that the decl is first;
863 we ass_u_me that it will be printed with "%s". */
864 for (p = output_buffer_text_cursor (buffer); *p; ++p)
870 else if (*(p + 1) != 's')
877 /* Print the left-hand substring. */
878 maybe_wrap_text (buffer, output_buffer_text_cursor (buffer), p);
880 if (*p == '%') /* Print the name. */
882 const char *n = (DECL_NAME (decl)
883 ? (*decl_printable_name) (decl, 2)
884 : _("((anonymous))"));
885 output_add_string (buffer, n);
889 if (ISALPHA (*(p - 1) & 0xFF))
894 if (*p) /* Print the rest of the message. */
896 output_buffer_text_cursor (buffer) = p;
897 output_format (buffer);
902 /* Report a diagnostic MESSAGE at the declaration DECL.
903 MSG is a format string which uses %s to substitute the declaration
904 name; subsequent substitutions are a la output_format. */
907 diagnostic_for_decl (decl, msgid, args_ptr, warn)
915 if (diagnostic_lock++)
918 if (count_error (warn))
920 os = output_buffer_state (diagnostic_buffer);
921 report_error_function (DECL_SOURCE_FILE (decl));
923 (diagnostic_buffer, context_as_prefix
924 (DECL_SOURCE_FILE (decl), DECL_SOURCE_LINE (decl), warn));
925 output_buffer_ptr_to_format_args (diagnostic_buffer) = args_ptr;
926 output_buffer_text_cursor (diagnostic_buffer) = _(msgid);
927 format_with_decl (diagnostic_buffer, decl);
928 diagnostic_finish ((output_buffer *)global_dc);
929 output_destroy_prefix (diagnostic_buffer);
931 output_buffer_state (diagnostic_buffer) = os;
937 /* Count an error or warning. Return 1 if the message should be printed. */
940 count_error (warningp)
943 if (warningp && !diagnostic_report_warnings_p ())
946 if (warningp && !warnings_are_errors)
950 static int warning_message = 0;
952 if (warningp && !warning_message)
954 verbatim ("%s: warnings being treated as errors\n", progname);
963 /* Print a diagnostic MSGID on FILE. This is just fprintf, except it
964 runs its second argument through gettext. */
967 fnotice VPARAMS ((FILE *file, const char *msgid, ...))
969 #ifndef ANSI_PROTOTYPES
975 VA_START (ap, msgid);
977 #ifndef ANSI_PROTOTYPES
978 file = va_arg (ap, FILE *);
979 msgid = va_arg (ap, const char *);
982 vfprintf (file, _(msgid), ap);
987 /* Print a fatal I/O error message. Argument are like printf.
988 Also include a system error message based on `errno'. */
991 fatal_io_error VPARAMS ((const char *msgid, ...))
993 #ifndef ANSI_PROTOTYPES
999 os = output_buffer_state (diagnostic_buffer);
1000 VA_START (ap, msgid);
1002 #ifndef ANSI_PROTOTYPES
1003 msgid = va_arg (ap, const char *);
1006 output_printf (diagnostic_buffer, "%s: %s: ", progname, xstrerror (errno));
1007 output_buffer_ptr_to_format_args (diagnostic_buffer) = ≈
1008 output_buffer_text_cursor (diagnostic_buffer) = _(msgid);
1009 output_format (diagnostic_buffer);
1010 diagnostic_finish ((output_buffer *)global_dc);
1011 output_buffer_state (diagnostic_buffer) = os;
1013 exit (FATAL_EXIT_CODE);
1016 /* Issue a pedantic warning MSGID. */
1019 pedwarn VPARAMS ((const char *msgid, ...))
1021 #ifndef ANSI_PROTOTYPES
1025 diagnostic_context dc;
1027 VA_START (ap, msgid);
1029 #ifndef ANSI_PROTOTYPES
1030 msgid = va_arg (ap, const char *);
1033 set_diagnostic_context
1034 (&dc, msgid, &ap, input_filename, lineno, !flag_pedantic_errors);
1035 report_diagnostic (&dc);
1039 /* Issue a pedantic waring about DECL. */
1042 pedwarn_with_decl VPARAMS ((tree decl, const char *msgid, ...))
1044 #ifndef ANSI_PROTOTYPES
1050 VA_START (ap, msgid);
1052 #ifndef ANSI_PROTOTYPES
1053 decl = va_arg (ap, tree);
1054 msgid = va_arg (ap, const char *);
1056 /* We don't want -pedantic-errors to cause the compilation to fail from
1057 "errors" in system header files. Sometimes fixincludes can't fix what's
1058 broken (eg: unsigned char bitfields - fixing it may change the alignment
1059 which will cause programs to mysteriously fail because the C library
1060 or kernel uses the original layout). There's no point in issuing a
1061 warning either, it's just unnecessary noise. */
1062 if (!DECL_IN_SYSTEM_HEADER (decl))
1063 diagnostic_for_decl (decl, msgid, &ap, !flag_pedantic_errors);
1067 /* Same as above but within the context FILE and LINE. */
1070 pedwarn_with_file_and_line VPARAMS ((const char *file, int line,
1071 const char *msgid, ...))
1073 #ifndef ANSI_PROTOTYPES
1079 diagnostic_context dc;
1081 VA_START (ap, msgid);
1083 #ifndef ANSI_PROTOTYPES
1084 file = va_arg (ap, const char *);
1085 line = va_arg (ap, int);
1086 msgid = va_arg (ap, const char *);
1089 set_diagnostic_context (&dc, msgid, &ap, file, line, !flag_pedantic_errors);
1090 report_diagnostic (&dc);
1094 /* Just apologize with MSGID. */
1097 sorry VPARAMS ((const char *msgid, ...))
1099 #ifndef ANSI_PROTOTYPES
1105 os = output_buffer_state (diagnostic_buffer);
1106 VA_START (ap, msgid);
1108 #ifndef ANSI_PROTOTYPES
1109 msgid = va_arg (ap, const char *);
1113 (diagnostic_buffer, context_as_prefix (input_filename, lineno, 0));
1114 output_printf (diagnostic_buffer, "sorry, not implemented: ");
1115 output_buffer_ptr_to_format_args (diagnostic_buffer) = ≈
1116 output_buffer_text_cursor (diagnostic_buffer) = _(msgid);
1117 output_format (diagnostic_buffer);
1118 diagnostic_finish ((output_buffer *)global_dc);
1119 output_buffer_state (diagnostic_buffer) = os;
1123 /* Called when the start of a function definition is parsed,
1124 this function prints on stderr the name of the function. */
1127 announce_function (decl)
1132 if (rtl_dump_and_exit)
1133 verbatim ("%s ", IDENTIFIER_POINTER (DECL_NAME (decl)));
1135 verbatim (" %s", (*decl_printable_name) (decl, 2));
1137 output_needs_newline (diagnostic_buffer) = 1;
1138 record_last_error_function ();
1142 /* The default function to print out name of current function that caused
1146 default_print_error_function (context, file)
1147 diagnostic_context *context;
1150 if (error_function_changed ())
1152 char *prefix = file ? build_message_string ("%s: ", file) : NULL;
1155 os = output_buffer_state (context);
1156 output_set_prefix ((output_buffer *)context, prefix);
1158 if (current_function_decl == NULL)
1159 output_add_string ((output_buffer *)context, _("At top level:"));
1162 if (TREE_CODE (TREE_TYPE (current_function_decl)) == METHOD_TYPE)
1164 ((output_buffer *)context, "In member function `%s':",
1165 (*decl_printable_name) (current_function_decl, 2));
1168 ((output_buffer *)context, "In function `%s':",
1169 (*decl_printable_name) (current_function_decl, 2));
1171 output_add_newline ((output_buffer *)context);
1173 record_last_error_function ();
1174 output_buffer_to_stream ((output_buffer *)context);
1175 output_buffer_state (context) = os;
1176 free ((char*) prefix);
1180 /* Prints out, if necessary, the name of the current function
1181 that caused an error. Called from all error and warning functions.
1182 We ignore the FILE parameter, as it cannot be relied upon. */
1185 report_error_function (file)
1186 const char *file ATTRIBUTE_UNUSED;
1188 report_problematic_module ((output_buffer *)global_dc);
1189 (*print_error_function) (global_dc, input_filename);
1193 error_with_file_and_line VPARAMS ((const char *file, int line,
1194 const char *msgid, ...))
1196 #ifndef ANSI_PROTOTYPES
1202 diagnostic_context dc;
1204 VA_START (ap, msgid);
1206 #ifndef ANSI_PROTOTYPES
1207 file = va_arg (ap, const char *);
1208 line = va_arg (ap, int);
1209 msgid = va_arg (ap, const char *);
1212 set_diagnostic_context (&dc, msgid, &ap, file, line, /* warn = */ 0);
1213 report_diagnostic (&dc);
1218 error_with_decl VPARAMS ((tree decl, const char *msgid, ...))
1220 #ifndef ANSI_PROTOTYPES
1226 VA_START (ap, msgid);
1228 #ifndef ANSI_PROTOTYPES
1229 decl = va_arg (ap, tree);
1230 msgid = va_arg (ap, const char *);
1233 diagnostic_for_decl (decl, msgid, &ap, /* warn = */ 0);
1238 /* Report an error message. The arguments are like that of printf. */
1241 error VPARAMS ((const char *msgid, ...))
1243 #ifndef ANSI_PROTOTYPES
1247 diagnostic_context dc;
1249 VA_START (ap, msgid);
1251 #ifndef ANSI_PROTOTYPES
1252 msgid = va_arg (ap, const char *);
1255 set_diagnostic_context
1256 (&dc, msgid, &ap, input_filename, lineno, /* warn = */ 0);
1257 report_diagnostic (&dc);
1261 /* Likewise, except that the compilation is terminated after printing the
1265 fatal_error VPARAMS ((const char *msgid, ...))
1267 #ifndef ANSI_PROTOTYPES
1271 diagnostic_context dc;
1273 VA_START (ap, msgid);
1275 #ifndef ANSI_PROTOTYPES
1276 msgid = va_arg (ap, const char *);
1279 set_diagnostic_context
1280 (&dc, msgid, &ap, input_filename, lineno, /* warn = */ 0);
1281 report_diagnostic (&dc);
1284 fnotice (stderr, "compilation terminated.\n");
1285 exit (FATAL_EXIT_CODE);
1288 /* Report a compiler error at the current line number. Allow a front end to
1289 intercept the message. */
1291 static void (*internal_error_function) PARAMS ((const char *, va_list *));
1293 /* Set the function to call when a compiler error occurs. */
1296 set_internal_error_function (f)
1297 void (*f) PARAMS ((const char *, va_list *));
1299 internal_error_function = f;
1303 internal_error VPARAMS ((const char *msgid, ...))
1305 #ifndef ANSI_PROTOTYPES
1309 diagnostic_context dc;
1311 VA_START (ap, msgid);
1313 #ifndef ANSI_PROTOTYPES
1314 msgid = va_arg (ap, const char *);
1317 if (diagnostic_lock)
1320 if (errorcount > 0 || sorrycount > 0)
1322 fnotice (stderr, "%s:%d: confused by earlier errors, bailing out\n",
1323 input_filename, lineno);
1324 exit (FATAL_EXIT_CODE);
1327 if (internal_error_function != 0)
1328 (*internal_error_function) (_(msgid), &ap);
1330 set_diagnostic_context
1331 (&dc, msgid, &ap, input_filename, lineno, /* warn = */0);
1332 report_diagnostic (&dc);
1336 "Please submit a full bug report,\n\
1337 with preprocessed source if appropriate.\n\
1338 See %s for instructions.\n", GCCBUGURL);
1339 exit (FATAL_EXIT_CODE);
1343 warning_with_file_and_line VPARAMS ((const char *file, int line,
1344 const char *msgid, ...))
1346 #ifndef ANSI_PROTOTYPES
1352 diagnostic_context dc;
1354 VA_START (ap, msgid);
1356 #ifndef ANSI_PROTOTYPES
1357 file = va_arg (ap, const char *);
1358 line = va_arg (ap, int);
1359 msgid = va_arg (ap, const char *);
1362 set_diagnostic_context (&dc, msgid, &ap, file, line, /* warn = */ 1);
1363 report_diagnostic (&dc);
1368 warning_with_decl VPARAMS ((tree decl, const char *msgid, ...))
1370 #ifndef ANSI_PROTOTYPES
1376 VA_START (ap, msgid);
1378 #ifndef ANSI_PROTOTYPES
1379 decl = va_arg (ap, tree);
1380 msgid = va_arg (ap, const char *);
1383 diagnostic_for_decl (decl, msgid, &ap, /* warn = */ 1);
1388 warning VPARAMS ((const char *msgid, ...))
1390 #ifndef ANSI_PROTOTYPES
1394 diagnostic_context dc;
1396 VA_START (ap, msgid);
1398 #ifndef ANSI_PROTOTYPES
1399 msgid = va_arg (ap, const char *);
1402 set_diagnostic_context
1403 (&dc, msgid, &ap, input_filename, lineno, /* warn = */ 1);
1404 report_diagnostic (&dc);
1408 /* Flush diagnostic_buffer content on stderr. */
1411 diagnostic_finish (buffer)
1412 output_buffer *buffer;
1414 output_buffer_to_stream (buffer);
1415 clear_diagnostic_info (buffer);
1416 fputc ('\n', output_buffer_attached_stream (buffer));
1417 fflush (output_buffer_attached_stream (buffer));
1420 /* Helper subroutine of output_verbatim and verbatim. Do the approriate
1421 settings needed by BUFFER for a verbatim formatting. */
1424 output_do_verbatim (buffer, msgid, args_ptr)
1425 output_buffer *buffer;
1431 os = output_buffer_state (buffer);
1432 output_prefix (buffer) = NULL;
1433 diagnostic_prefixing_rule (buffer) = DIAGNOSTICS_SHOW_PREFIX_NEVER;
1434 output_buffer_text_cursor (buffer) = _(msgid);
1435 output_buffer_ptr_to_format_args (buffer) = args_ptr;
1436 output_set_maximum_length (buffer, 0);
1437 output_format (buffer);
1438 output_buffer_state (buffer) = os;
1441 /* Output MESSAGE verbatim into BUFFER. */
1444 output_verbatim VPARAMS ((output_buffer *buffer, const char *msgid, ...))
1446 #ifndef ANSI_PROTOTYPES
1447 output_buffer *buffer;
1452 VA_START (ap, msgid);
1453 #ifndef ANSI_PROTOTYPES
1454 buffer = va_arg (ap, output_buffer *);
1455 msg = va_arg (ap, const char *);
1457 output_do_verbatim (buffer, msgid, &ap);
1461 /* Same as above but use diagnostic_buffer. */
1464 verbatim VPARAMS ((const char *msgid, ...))
1466 #ifndef ANSI_PROTOTYPES
1471 VA_START (ap, msgid);
1472 #ifndef ANSI_PROTOTYPES
1473 msgid = va_arg (ap, const char *);
1475 output_do_verbatim (diagnostic_buffer, msgid, &ap);
1476 output_buffer_to_stream (diagnostic_buffer);
1480 /* Report a diagnostic message (an error or a warning) as specified by
1481 DC. This function is *the* subroutine in terms of which front-ends
1482 should implement their specific diagnostic handling modules. The
1483 front-end independent format specifiers are exactly those described
1484 in the documentation of output_format. */
1487 report_diagnostic (dc)
1488 diagnostic_context *dc;
1492 if (diagnostic_lock++)
1495 if (count_error (diagnostic_is_warning (dc)))
1497 os = output_buffer_state (diagnostic_buffer);
1498 diagnostic_msg = diagnostic_message (dc);
1499 diagnostic_args = diagnostic_argument_list (dc);
1500 (*diagnostic_starter (dc)) (diagnostic_buffer, dc);
1501 output_format (diagnostic_buffer);
1502 (*diagnostic_finalizer (dc)) (diagnostic_buffer, dc);
1503 diagnostic_finish ((output_buffer *)global_dc);
1504 output_buffer_state (diagnostic_buffer) = os;
1510 /* Inform the user that an error occurred while trying to report some
1511 other error. This indicates catastrophic internal inconsistencies,
1512 so give up now. But do try to flush out the previous error.
1513 This mustn't use internal_error, that will cause infinite recursion. */
1518 if (diagnostic_lock < 3)
1519 diagnostic_finish ((output_buffer *)global_dc);
1522 "Internal compiler error: Error reporting routines re-entered.\n");
1524 "Please submit a full bug report,\n\
1525 with preprocessed source if appropriate.\n\
1526 See %s for instructions.\n", GCCBUGURL);
1527 exit (FATAL_EXIT_CODE);
1530 /* Given a partial pathname as input, return another pathname that
1531 shares no directory elements with the pathname of __FILE__. This
1532 is used by fancy_abort() to print `Internal compiler error in expr.c'
1533 instead of `Internal compiler error in ../../GCC/gcc/expr.c'. */
1536 trim_filename (name)
1539 static const char this_file[] = __FILE__;
1540 const char *p = name, *q = this_file;
1542 /* First skip any "../" in each filename. This allows us to give a proper
1543 reference to a file in a subdirectory. */
1544 while (p[0] == '.' && p[1] == '.'
1545 && (p[2] == DIR_SEPARATOR
1546 #ifdef DIR_SEPARATOR_2
1547 || p[2] == DIR_SEPARATOR_2
1552 while (q[0] == '.' && q[1] == '.'
1553 && (q[2] == DIR_SEPARATOR
1554 #ifdef DIR_SEPARATOR_2
1555 || p[2] == DIR_SEPARATOR_2
1560 /* Now skip any parts the two filenames have in common. */
1561 while (*p == *q && *p != 0 && *q != 0)
1564 /* Now go backwards until the previous directory separator. */
1565 while (p > name && p[-1] != DIR_SEPARATOR
1566 #ifdef DIR_SEPARATOR_2
1567 && p[-1] != DIR_SEPARATOR_2
1575 /* Report an internal compiler error in a friendly manner and without
1579 fancy_abort (file, line, function)
1582 const char *function;
1584 internal_error ("Internal compiler error in %s, at %s:%d",
1585 function, trim_filename (file), line);
1588 /* Setup DC for reporting a diagnostic MESSAGE (an error or a WARNING),
1589 using arguments pointed to by ARGS_PTR, issued at a location specified
1590 by FILE and LINE. */
1593 set_diagnostic_context (dc, msgid, args_ptr, file, line, warn)
1594 diagnostic_context *dc;
1601 memset (dc, 0, sizeof (diagnostic_context));
1602 diagnostic_message (dc) = _(msgid);
1603 diagnostic_argument_list (dc) = args_ptr;
1604 diagnostic_file_location (dc) = file;
1605 diagnostic_line_location (dc) = line;
1606 diagnostic_is_warning (dc) = warn;
1607 diagnostic_starter (dc) = diagnostic_starter (global_dc);
1608 diagnostic_finalizer (dc) = diagnostic_finalizer (global_dc);
1612 report_problematic_module (buffer)
1613 output_buffer *buffer;
1615 struct file_stack *p;
1617 if (output_needs_newline (buffer))
1619 output_add_newline (buffer);
1620 output_needs_newline (buffer) = 0;
1623 if (input_file_stack && input_file_stack->next != 0
1624 && error_module_changed ())
1626 for (p = input_file_stack->next; p; p = p->next)
1627 if (p == input_file_stack->next)
1629 (buffer, "In file included from %s:%d", p->name, p->line);
1632 (buffer, ",\n from %s:%d", p->name, p->line);
1633 output_verbatim (buffer, ":\n");
1634 record_last_error_module ();
1639 default_diagnostic_starter (buffer, dc)
1640 output_buffer *buffer;
1641 diagnostic_context *dc;
1643 report_error_function (diagnostic_file_location (dc));
1644 output_set_prefix (buffer,
1645 context_as_prefix (diagnostic_file_location (dc),
1646 diagnostic_line_location (dc),
1647 diagnostic_is_warning (dc)));
1651 default_diagnostic_finalizer (buffer, dc)
1652 output_buffer *buffer;
1653 diagnostic_context *dc __attribute__((__unused__));
1655 output_destroy_prefix (buffer);