X-Git-Url: http://git.sourceforge.jp/view?p=pf3gnuchains%2Fgcc-fork.git;a=blobdiff_plain;f=gcc%2Fdiagnostic.c;h=eee97cecd33c1b60f5de487fc3ebe3e3c96da319;hp=db051030d7e7324fe2d466d36916949e81e7b2a4;hb=529f23cd8bab3c1b5e0d4fafd0e49faadf43cf29;hpb=0837efa0d36f65b966116c0ffd2a2a351e0b83bf diff --git a/gcc/diagnostic.c b/gcc/diagnostic.c index db051030d7e..eee97cecd33 100644 --- a/gcc/diagnostic.c +++ b/gcc/diagnostic.c @@ -1,12 +1,13 @@ /* Language-independent diagnostic subroutines for the GNU Compiler Collection - Copyright (C) 1999, 2000, 2001, 2002 Free Software Foundation, Inc. + Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, + 2009, 2010 Free Software Foundation, Inc. Contributed by Gabriel Dos Reis This file is part of GCC. GCC is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free -Software Foundation; either version 2, or (at your option) any later +Software Foundation; either version 3, or (at your option) any later version. GCC is distributed in the hope that it will be useful, but WITHOUT ANY @@ -15,1275 +16,746 @@ FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License -along with GCC; see the file COPYING. If not, write to the Free -Software Foundation, 59 Temple Place - Suite 330, Boston, MA -02111-1307, USA. */ +along with GCC; see the file COPYING3. If not see +. */ /* This file implements the language independent aspect of diagnostic message module. */ #include "config.h" -#undef FLOAT /* This is for hpux. They should change hpux. */ -#undef FFS /* Some systems define this in param.h. */ #include "system.h" -#include "tree.h" -#include "tm_p.h" +#include "coretypes.h" +#include "version.h" #include "flags.h" #include "input.h" #include "toplev.h" #include "intl.h" #include "diagnostic.h" -#include "langhooks.h" -#include "langhooks-def.h" +#include "opts.h" +#include "plugin.h" -#define obstack_chunk_alloc xmalloc -#define obstack_chunk_free free +#define pedantic_warning_kind() (flag_pedantic_errors ? DK_ERROR : DK_WARNING) +#define permissive_error_kind() (flag_permissive ? DK_WARNING : DK_ERROR) -#define output_formatted_integer(BUFFER, FORMAT, INTEGER) \ - do \ - { \ - sprintf ((BUFFER)->digit_buffer, FORMAT, INTEGER); \ - output_add_string (BUFFER, (BUFFER)->digit_buffer); \ - } \ - while (0) +/* Prototypes. */ +static char *build_message_string (const char *, ...) ATTRIBUTE_PRINTF_1; -#define output_text_length(BUFFER) (BUFFER)->line_length -#define is_starting_newline(BUFFER) (output_text_length (BUFFER) == 0) -#define line_wrap_cutoff(BUFFER) (BUFFER)->state.maximum_length -#define prefix_was_emitted_for(BUFFER) (BUFFER)->state.emitted_prefix_p +static void error_recursion (diagnostic_context *) ATTRIBUTE_NORETURN; -/* Prototypes. */ -static void output_flush PARAMS ((output_buffer *)); -static void output_do_verbatim PARAMS ((output_buffer *, text_info *)); -static void output_buffer_to_stream PARAMS ((output_buffer *)); -static void output_format PARAMS ((output_buffer *, text_info *)); -static void output_indent PARAMS ((output_buffer *)); - -static char *vbuild_message_string PARAMS ((const char *, va_list)) - ATTRIBUTE_PRINTF (1, 0); -static char *build_message_string PARAMS ((const char *, ...)) - ATTRIBUTE_PRINTF_1; -static void format_with_decl PARAMS ((output_buffer *, text_info *, tree)); -static void diagnostic_for_decl PARAMS ((diagnostic_info *, tree)); -static void set_real_maximum_length PARAMS ((output_buffer *)); - -static void output_unsigned_decimal PARAMS ((output_buffer *, unsigned int)); -static void output_long_decimal PARAMS ((output_buffer *, long int)); -static void output_long_unsigned_decimal PARAMS ((output_buffer *, - long unsigned int)); -static void output_octal PARAMS ((output_buffer *, unsigned int)); -static void output_long_octal PARAMS ((output_buffer *, unsigned long int)); -static void output_hexadecimal PARAMS ((output_buffer *, unsigned int)); -static void output_long_hexadecimal PARAMS ((output_buffer *, - unsigned long int)); -static void output_append_r PARAMS ((output_buffer *, const char *, int)); -static void wrap_text PARAMS ((output_buffer *, const char *, const char *)); -static void maybe_wrap_text PARAMS ((output_buffer *, const char *, - const char *)); -static void output_clear_data PARAMS ((output_buffer *)); - -static void default_diagnostic_starter PARAMS ((diagnostic_context *, - diagnostic_info *)); -static void default_diagnostic_finalizer PARAMS ((diagnostic_context *, - diagnostic_info *)); - -static void error_recursion PARAMS ((diagnostic_context *)) ATTRIBUTE_NORETURN; -static bool text_specifies_location PARAMS ((text_info *, location_t *)); - -extern int rtl_dump_and_exit; -extern int warnings_are_errors; +static void diagnostic_action_after_output (diagnostic_context *, + diagnostic_info *); +static void real_abort (void) ATTRIBUTE_NORETURN; /* A diagnostic_context surrogate for stderr. */ static diagnostic_context global_diagnostic_context; diagnostic_context *global_dc = &global_diagnostic_context; -/* Subroutine of output_set_maximum_length. Set up BUFFER's - internal maximum characters per line. */ -static void -set_real_maximum_length (buffer) - output_buffer *buffer; -{ - /* If we're told not to wrap lines then do the obvious thing. In case - we'll emit prefix only once per diagnostic message, it is appropriate - not to increase unnecessarily the line-length cut-off. */ - if (!output_is_line_wrapping (buffer) - || output_prefixing_rule (buffer) == DIAGNOSTICS_SHOW_PREFIX_ONCE - || output_prefixing_rule (buffer) == DIAGNOSTICS_SHOW_PREFIX_NEVER) - line_wrap_cutoff (buffer) = output_line_cutoff (buffer); - else - { - int prefix_length = buffer->state.prefix ? - strlen (buffer->state.prefix) : 0; - /* If the prefix is ridiculously too long, output at least - 32 characters. */ - if (output_line_cutoff (buffer) - prefix_length < 32) - line_wrap_cutoff (buffer) = output_line_cutoff (buffer) + 32; - else - line_wrap_cutoff (buffer) = output_line_cutoff (buffer); - } -} - -/* Sets the number of maximum characters per line BUFFER can output - in line-wrapping mode. A LENGTH value 0 suppresses line-wrapping. */ -void -output_set_maximum_length (buffer, length) - output_buffer *buffer; - int length; -{ - output_line_cutoff (buffer) = length; - set_real_maximum_length (buffer); -} - -/* Sets BUFFER's PREFIX. */ -void -output_set_prefix (buffer, prefix) - output_buffer *buffer; - const char *prefix; -{ - buffer->state.prefix = prefix; - set_real_maximum_length (buffer); - prefix_was_emitted_for (buffer) = false; - output_indentation (buffer) = 0; -} - -/* Return a pointer to the last character emitted in the output - BUFFER area. A NULL pointer means no character available. */ -const char * -output_last_position (buffer) - const output_buffer *buffer; +/* Return a malloc'd string containing MSG formatted a la printf. The + caller is responsible for freeing the memory. */ +static char * +build_message_string (const char *msg, ...) { - const char *p = NULL; - - if (obstack_base (&buffer->obstack) != obstack_next_free (&buffer->obstack)) - p = ((const char *) obstack_next_free (&buffer->obstack)) - 1; - return p; -} + char *str; + va_list ap; -/* Free BUFFER's prefix, a previously malloc'd string. */ -void -output_destroy_prefix (buffer) - output_buffer *buffer; -{ - if (buffer->state.prefix != NULL) - { - free ((char *) buffer->state.prefix); - buffer->state.prefix = NULL; - } -} + va_start (ap, msg); + vasprintf (&str, msg, ap); + va_end (ap); -/* Zero out any text output so far in BUFFER. */ -void -output_clear_message_text (buffer) - output_buffer *buffer; -{ - obstack_free (&buffer->obstack, obstack_base (&buffer->obstack)); - output_text_length (buffer) = 0; + return str; } -/* Zero out any formatting data used so far by BUFFER. */ -static void -output_clear_data (buffer) - output_buffer *buffer; +/* Same as diagnostic_build_prefix, but only the source FILE is given. */ +char * +file_name_as_prefix (const char *f) { - prefix_was_emitted_for (buffer) = false; - output_indentation (buffer) = 0; + return build_message_string ("%s: ", f); } -/* Construct an output BUFFER with PREFIX and of MAXIMUM_LENGTH - characters per line. */ -void -init_output_buffer (buffer, prefix, maximum_length) - output_buffer *buffer; - const char *prefix; - int maximum_length; -{ - memset (buffer, 0, sizeof (output_buffer)); - obstack_init (&buffer->obstack); - output_buffer_attached_stream (buffer) = stderr; - output_line_cutoff (buffer) = maximum_length; - output_prefixing_rule (buffer) = diagnostic_prefixing_rule (global_dc); - output_set_prefix (buffer, prefix); - output_text_length (buffer) = 0; - output_clear_data (buffer); -} -/* Reinitialize BUFFER. */ + +/* Initialize the diagnostic message outputting machinery. */ void -output_clear (buffer) - output_buffer *buffer; +diagnostic_initialize (diagnostic_context *context) { - output_clear_message_text (buffer); - output_clear_data (buffer); -} - -/* Finishes constructing a NULL-terminated character string representing - the BUFFERed message. */ -const char * -output_finalize_message (buffer) - output_buffer *buffer; -{ - obstack_1grow (&buffer->obstack, '\0'); - return output_message_text (buffer); + /* Allocate a basic pretty-printer. Clients will replace this a + much more elaborated pretty-printer if they wish. */ + context->printer = XNEW (pretty_printer); + pp_construct (context->printer, NULL, 0); + /* By default, diagnostics are sent to stderr. */ + context->printer->buffer->stream = stderr; + /* By default, we emit prefixes once per message. */ + context->printer->wrapping.rule = DIAGNOSTICS_SHOW_PREFIX_ONCE; + + memset (context->diagnostic_count, 0, sizeof context->diagnostic_count); + context->some_warnings_are_errors = false; + context->warning_as_error_requested = false; + memset (context->classify_diagnostic, DK_UNSPECIFIED, + sizeof context->classify_diagnostic); + context->show_option_requested = false; + context->abort_on_error = false; + context->internal_error = NULL; + diagnostic_starter (context) = default_diagnostic_starter; + diagnostic_finalizer (context) = default_diagnostic_finalizer; + context->last_module = 0; + context->x_data = NULL; + context->lock = 0; + context->inhibit_notes_p = false; } -/* Return the amount of characters BUFFER can accept to - make a full line. */ -int -output_space_left (buffer) - const output_buffer *buffer; -{ - return line_wrap_cutoff (buffer) - output_text_length (buffer); -} +/* Do any cleaning up required after the last diagnostic is emitted. */ -/* Write out BUFFER's prefix. */ void -output_emit_prefix (buffer) - output_buffer *buffer; +diagnostic_finish (diagnostic_context *context) { - if (buffer->state.prefix != NULL) + /* Some of the errors may actually have been warnings. */ + if (context->some_warnings_are_errors) { - switch (output_prefixing_rule (buffer)) - { - default: - case DIAGNOSTICS_SHOW_PREFIX_NEVER: - break; - - case DIAGNOSTICS_SHOW_PREFIX_ONCE: - if (prefix_was_emitted_for (buffer)) - { - output_indent (buffer); - break; - } - output_indentation (buffer) += 3; - /* Fall through. */ - - case DIAGNOSTICS_SHOW_PREFIX_EVERY_LINE: - { - int prefix_length = strlen (buffer->state.prefix); - output_append_r (buffer, buffer->state.prefix, prefix_length); - prefix_was_emitted_for (buffer) = true; - } - break; - } + /* -Werror was given. */ + if (context->warning_as_error_requested) + pp_verbatim (context->printer, + _("%s: all warnings being treated as errors\n"), + progname); + /* At least one -Werror= was given. */ + else + pp_verbatim (context->printer, + _("%s: some warnings being treated as errors\n"), + progname); + pp_flush (context->printer); } } -/* Have BUFFER start a new line. */ -void -output_add_newline (buffer) - output_buffer *buffer; -{ - obstack_1grow (&buffer->obstack, '\n'); - output_text_length (buffer) = 0; -} - -/* Appends a character to BUFFER. */ -void -output_add_character (buffer, c) - output_buffer *buffer; - int c; -{ - if (output_is_line_wrapping (buffer) && output_space_left (buffer) <= 0) - output_add_newline (buffer); - obstack_1grow (&buffer->obstack, c); - ++output_text_length (buffer); -} - -/* Adds a space to BUFFER. */ +/* Initialize DIAGNOSTIC, where the message MSG has already been + translated. */ void -output_add_space (buffer) - output_buffer *buffer; +diagnostic_set_info_translated (diagnostic_info *diagnostic, const char *msg, + va_list *args, location_t location, + diagnostic_t kind) { - if (output_is_line_wrapping (buffer) && output_space_left (buffer) <= 0) - { - output_add_newline (buffer); - return; - } - obstack_1grow (&buffer->obstack, ' '); - ++output_text_length (buffer); + diagnostic->message.err_no = errno; + diagnostic->message.args_ptr = args; + diagnostic->message.format_spec = msg; + diagnostic->location = location; + diagnostic->override_column = 0; + diagnostic->kind = kind; + diagnostic->option_index = 0; } -/* These functions format an INTEGER into BUFFER as suggested by their - names. */ +/* Initialize DIAGNOSTIC, where the message GMSGID has not yet been + translated. */ void -output_decimal (buffer, i) - output_buffer *buffer; - int i; +diagnostic_set_info (diagnostic_info *diagnostic, const char *gmsgid, + va_list *args, location_t location, + diagnostic_t kind) { - output_formatted_integer (buffer, "%d", i); + diagnostic_set_info_translated (diagnostic, _(gmsgid), args, location, kind); } -static void -output_long_decimal (buffer, i) - output_buffer *buffer; - long int i; -{ - output_formatted_integer (buffer, "%ld", i); -} - -static void -output_unsigned_decimal (buffer, i) - output_buffer *buffer; - unsigned int i; -{ - output_formatted_integer (buffer, "%u", i); -} - -static void -output_long_unsigned_decimal (buffer, i) - output_buffer *buffer; - long unsigned int i; +/* Return a malloc'd string describing a location. The caller is + responsible for freeing the memory. */ +char * +diagnostic_build_prefix (diagnostic_info *diagnostic) { - output_formatted_integer (buffer, "%lu", i); -} - + static const char *const diagnostic_kind_text[] = { +#define DEFINE_DIAGNOSTIC_KIND(K, T) (T), +#include "diagnostic.def" +#undef DEFINE_DIAGNOSTIC_KIND + "must-not-happen" + }; + const char *text = _(diagnostic_kind_text[diagnostic->kind]); + expanded_location s = expand_location (diagnostic->location); + if (diagnostic->override_column) + s.column = diagnostic->override_column; + gcc_assert (diagnostic->kind < DK_LAST_DIAGNOSTIC_KIND); + + return + (s.file == NULL + ? build_message_string ("%s: %s", progname, text) + : flag_show_column + ? build_message_string ("%s:%d:%d: %s", s.file, s.line, s.column, text) + : build_message_string ("%s:%d: %s", s.file, s.line, text)); +} + +/* Take any action which is expected to happen after the diagnostic + is written out. This function does not always return. */ static void -output_octal (buffer, i) - output_buffer *buffer; - unsigned int i; +diagnostic_action_after_output (diagnostic_context *context, + diagnostic_info *diagnostic) { - output_formatted_integer (buffer, "%o", i); -} + switch (diagnostic->kind) + { + case DK_DEBUG: + case DK_NOTE: + case DK_ANACHRONISM: + case DK_WARNING: + break; -static void -output_long_octal (buffer, i) - output_buffer *buffer; - unsigned long int i; -{ - output_formatted_integer (buffer, "%lo", i); -} + case DK_ERROR: + case DK_SORRY: + if (context->abort_on_error) + real_abort (); + if (flag_fatal_errors) + { + fnotice (stderr, "compilation terminated due to -Wfatal-errors.\n"); + diagnostic_finish (context); + exit (FATAL_EXIT_CODE); + } + break; -static void -output_hexadecimal (buffer, i) - output_buffer *buffer; - unsigned int i; -{ - output_formatted_integer (buffer, "%x", i); -} + case DK_ICE: + if (context->abort_on_error) + real_abort (); -static void -output_long_hexadecimal (buffer, i) - output_buffer *buffer; - unsigned long int i; -{ - output_formatted_integer (buffer, "%lx", i); -} + fnotice (stderr, "Please submit a full bug report,\n" + "with preprocessed source if appropriate.\n" + "See %s for instructions.\n", bug_report_url); + exit (ICE_EXIT_CODE); -/* Append to BUFFER a string specified by its STARTING character - and LENGTH. */ -static void -output_append_r (buffer, start, length) - output_buffer *buffer; - const char *start; - int length; -{ - obstack_grow (&buffer->obstack, start, length); - output_text_length (buffer) += length; -} + case DK_FATAL: + if (context->abort_on_error) + real_abort (); + diagnostic_finish (context); + fnotice (stderr, "compilation terminated.\n"); + exit (FATAL_EXIT_CODE); -/* Append a string deliminated by START and END to BUFFER. No wrapping is - done. However, if beginning a new line then emit BUFFER->state.prefix - and skip any leading whitespace if appropriate. The caller must ensure - that it is safe to do so. */ -void -output_append (buffer, start, end) - output_buffer *buffer; - const char *start; - const char *end; -{ - /* Emit prefix and skip whitespace if we're starting a new line. */ - if (is_starting_newline (buffer)) - { - output_emit_prefix (buffer); - if (output_is_line_wrapping (buffer)) - while (start != end && *start == ' ') - ++start; + default: + gcc_unreachable (); } - output_append_r (buffer, start, end - start); -} - -static void -output_indent (buffer) - output_buffer *buffer; -{ - int n = output_indentation (buffer); - int i; - - for (i = 0; i < n; ++i) - output_add_character (buffer, ' '); } -/* Wrap a text delimited by START and END into BUFFER. */ -static void -wrap_text (buffer, start, end) - output_buffer *buffer; - const char *start; - const char *end; +void +diagnostic_report_current_module (diagnostic_context *context) { - bool is_wrapping = output_is_line_wrapping (buffer); + const struct line_map *map; - while (start != end) + if (pp_needs_newline (context->printer)) { - /* Dump anything bordered by whitespaces. */ - { - const char *p = start; - while (p != end && *p != ' ' && *p != '\n') - ++p; - if (is_wrapping && p - start >= output_space_left (buffer)) - output_add_newline (buffer); - output_append (buffer, start, p); - start = p; - } - - if (start != end && *start == ' ') - { - output_add_space (buffer); - ++start; - } - if (start != end && *start == '\n') - { - output_add_newline (buffer); - ++start; - } + pp_newline (context->printer); + pp_needs_newline (context->printer) = false; } -} - -/* Same as wrap_text but wrap text only when in line-wrapping mode. */ -static void -maybe_wrap_text (buffer, start, end) - output_buffer *buffer; - const char *start; - const char *end; -{ - if (output_is_line_wrapping (buffer)) - wrap_text (buffer, start, end); - else - output_append (buffer, start, end); -} - -/* Append a STRING to BUFFER; the STRING might be line-wrapped if in - appropriate mode. */ -void -output_add_string (buffer, str) - output_buffer *buffer; - const char *str; -{ - maybe_wrap_text (buffer, str, str + (str ? strlen (str) : 0)); -} - -/* Flush the content of BUFFER onto the attached stream, - and reinitialize. */ - -static void -output_buffer_to_stream (buffer) - output_buffer *buffer; -{ - const char *text = output_finalize_message (buffer); - fputs (text, output_buffer_attached_stream (buffer)); - output_clear_message_text (buffer); -} + if (input_location <= BUILTINS_LOCATION) + return; -/* Format a message pointed to by TEXT. The following format specifiers are - recognized as being language independent: - %d, %i: (signed) integer in base ten. - %u: unsigned integer in base ten. - %o: unsigned integer in base eight. - %x: unsigned integer in base sixteen. - %ld, %li, %lo, %lu, %lx: long versions of the above. - %c: character. - %s: string. - %%: `%'. - %*.s: a substring the length of which is specified by an integer. - %H: location_t. */ -static void -output_format (buffer, text) - output_buffer *buffer; - text_info *text; -{ - for (; *text->format_spec; ++text->format_spec) + map = linemap_lookup (line_table, input_location); + if (map && diagnostic_last_module_changed (context, map)) { - bool long_integer = 0; - - /* Ignore text. */ - { - const char *p = text->format_spec; - while (*p && *p != '%') - ++p; - wrap_text (buffer, text->format_spec, p); - text->format_spec = p; - } - - if (*text->format_spec == '\0') - break; - - /* We got a '%'. Let's see what happens. Record whether we're - parsing a long integer format specifier. */ - if (*++text->format_spec == 'l') - { - long_integer = true; - ++text->format_spec; - } - - /* Handle %c, %d, %i, %ld, %li, %lo, %lu, %lx, %o, %s, %u, - %x, %.*s; %%. And nothing else. Front-ends should install - printers to grok language specific format specifiers. */ - switch (*text->format_spec) + diagnostic_set_last_module (context, map); + if (! MAIN_FILE_P (map)) { - case 'c': - output_add_character (buffer, va_arg (*text->args_ptr, int)); - break; - - case 'd': - case 'i': - if (long_integer) - output_long_decimal (buffer, va_arg (*text->args_ptr, long int)); - else - output_decimal (buffer, va_arg (*text->args_ptr, int)); - break; - - case 'o': - if (long_integer) - output_long_octal (buffer, - va_arg (*text->args_ptr, unsigned long int)); - else - output_octal (buffer, va_arg (*text->args_ptr, unsigned int)); - break; - - case 's': - output_add_string (buffer, va_arg (*text->args_ptr, const char *)); - break; - - case 'u': - if (long_integer) - output_long_unsigned_decimal - (buffer, va_arg (*text->args_ptr, long unsigned int)); - else - output_unsigned_decimal - (buffer, va_arg (*text->args_ptr, unsigned int)); - break; - - case 'x': - if (long_integer) - output_long_hexadecimal - (buffer, va_arg (*text->args_ptr, unsigned long int)); + map = INCLUDED_FROM (line_table, map); + if (flag_show_column) + pp_verbatim (context->printer, + "In file included from %s:%d:%d", + map->to_file, + LAST_SOURCE_LINE (map), LAST_SOURCE_COLUMN (map)); else - output_hexadecimal - (buffer, va_arg (*text->args_ptr, unsigned int)); - break; - - case '%': - output_add_character (buffer, '%'); - break; - - case 'H': - { - const location_t *locus = va_arg (*text->args_ptr, location_t *); - output_add_string (buffer, "file '"); - output_add_string (buffer, locus->file); - output_add_string (buffer, "', line "); - output_decimal (buffer, locus->line); - } - break; - - case '.': - { - int n; - const char *s; - /* We handle no precision specifier but `%.*s'. */ - if (*++text->format_spec != '*') - abort (); - else if (*++text->format_spec != 's') - abort (); - n = va_arg (*text->args_ptr, int); - s = va_arg (*text->args_ptr, const char *); - output_append (buffer, s, s + n); - } - break; - - default: - if (!buffer->format_decoder - || !(*buffer->format_decoder) (buffer, text)) + pp_verbatim (context->printer, + "In file included from %s:%d", + map->to_file, LAST_SOURCE_LINE (map)); + while (! MAIN_FILE_P (map)) { - /* Hmmm. The front-end failed to install a format translator - but called us with an unrecognized format. Sorry. */ - abort (); + map = INCLUDED_FROM (line_table, map); + pp_verbatim (context->printer, + ",\n from %s:%d", + map->to_file, LAST_SOURCE_LINE (map)); } + pp_verbatim (context->printer, ":"); + pp_newline (context->printer); } } } -static char * -vbuild_message_string (msg, ap) - const char *msg; - va_list ap; +void +default_diagnostic_starter (diagnostic_context *context, + diagnostic_info *diagnostic) { - char *str; - - vasprintf (&str, msg, ap); - return str; + diagnostic_report_current_module (context); + pp_set_prefix (context->printer, diagnostic_build_prefix (diagnostic)); } -/* Return a malloc'd string containing MSG formatted a la - printf. The caller is responsible for freeing the memory. */ -static char * -build_message_string VPARAMS ((const char *msg, ...)) +void +default_diagnostic_finalizer (diagnostic_context *context, + diagnostic_info *diagnostic ATTRIBUTE_UNUSED) { - char *str; - - VA_OPEN (ap, msg); - VA_FIXEDARG (ap, const char *, msg); - - str = vbuild_message_string (msg, ap); - - VA_CLOSE (ap); - - return str; + pp_destroy_prefix (context->printer); } -/* Same as diagnsotic_build_prefix, but only the source FILE is given. */ -char * -file_name_as_prefix (f) - const char *f; +/* Interface to specify diagnostic kind overrides. Returns the + previous setting, or DK_UNSPECIFIED if the parameters are out of + range. */ +diagnostic_t +diagnostic_classify_diagnostic (diagnostic_context *context, + int option_index, + diagnostic_t new_kind) { - return build_message_string ("%s: ", f); -} + diagnostic_t old_kind; -/* Format a message into BUFFER a la printf. */ -void -output_printf VPARAMS ((struct output_buffer *buffer, const char *msgid, ...)) -{ - text_info text; - VA_OPEN (ap, msgid); - VA_FIXEDARG (ap, output_buffer *, buffer); - VA_FIXEDARG (ap, const char *, msgid); + if (option_index <= 0 + || option_index >= N_OPTS + || new_kind >= DK_LAST_DIAGNOSTIC_KIND) + return DK_UNSPECIFIED; - text.args_ptr = ≈ - text.format_spec = _(msgid); - output_format (buffer, &text); - VA_CLOSE (ap); + old_kind = context->classify_diagnostic[option_index]; + context->classify_diagnostic[option_index] = new_kind; + return old_kind; } -/* Print a message relevant to the given DECL. */ -static void -format_with_decl (buffer, text, decl) - output_buffer *buffer; - text_info *text; - tree decl; +/* Report a diagnostic message (an error or a warning) as specified by + DC. This function is *the* subroutine in terms of which front-ends + should implement their specific diagnostic handling modules. The + front-end independent format specifiers are exactly those described + in the documentation of output_format. + Return true if a diagnostic was printed, false otherwise. */ + +bool +diagnostic_report_diagnostic (diagnostic_context *context, + diagnostic_info *diagnostic) { - const char *p; + location_t location = diagnostic->location; + diagnostic_t orig_diag_kind = diagnostic->kind; + const char *saved_format_spec; - /* Do magic to get around lack of varargs support for insertion - of arguments into existing list. We know that the decl is first; - we ass_u_me that it will be printed with "%s". */ - for (p = text->format_spec; *p; ++p) + /* Give preference to being able to inhibit warnings, before they + get reclassified to something else. */ + if ((diagnostic->kind == DK_WARNING || diagnostic->kind == DK_PEDWARN) + && !diagnostic_report_warnings_p (location)) + return false; + + if (diagnostic->kind == DK_PEDWARN) { - if (*p == '%') - { - if (*(p + 1) == '%') - ++p; - else if (*(p + 1) != 's') - abort (); - else - break; - } + diagnostic->kind = pedantic_warning_kind (); + /* We do this to avoid giving the message for -pedantic-errors. */ + orig_diag_kind = diagnostic->kind; } + + if (diagnostic->kind == DK_NOTE && context->inhibit_notes_p) + return false; - /* Print the left-hand substring. */ - maybe_wrap_text (buffer, text->format_spec, p); - - if (*p == '%') /* Print the name. */ + if (context->lock > 0) { - const char *const n = (DECL_NAME (decl) - ? (*lang_hooks.decl_printable_name) (decl, 2) - : _("((anonymous))")); - output_add_string (buffer, n); - while (*p) - { - ++p; - if (ISALPHA (*(p - 1) & 0xFF)) - break; - } + /* If we're reporting an ICE in the middle of some other error, + try to flush out the previous error, then let this one + through. Don't do this more than once. */ + if (diagnostic->kind == DK_ICE && context->lock == 1) + pp_flush (context->printer); + else + error_recursion (context); } - if (*p) /* Print the rest of the message. */ + /* If the user requested that warnings be treated as errors, so be + it. Note that we do this before the next block so that + individual warnings can be overridden back to warnings with + -Wno-error=*. */ + if (context->warning_as_error_requested + && diagnostic->kind == DK_WARNING) { - text->format_spec = p; - output_format (buffer, text); + diagnostic->kind = DK_ERROR; } -} - -/* Flush the content of BUFFER onto the attached stream. */ -static void -output_flush (buffer) - output_buffer *buffer; -{ - output_buffer_to_stream (buffer); - output_clear_data (buffer); - fputc ('\n', output_buffer_attached_stream (buffer)); - fflush (output_buffer_attached_stream (buffer)); -} - -/* Helper subroutine of output_verbatim and verbatim. Do the appropriate - settings needed by BUFFER for a verbatim formatting. */ -static void -output_do_verbatim (buffer, text) - output_buffer *buffer; - text_info *text; -{ - diagnostic_prefixing_rule_t rule = output_prefixing_rule (buffer); - int line_cutoff = output_line_cutoff (buffer); - - /* Set verbatim mode. */ - output_prefixing_rule (buffer) = DIAGNOSTICS_SHOW_PREFIX_NEVER; - output_line_cutoff (buffer) = 0; - /* Do the actual formatting. */ - output_format (buffer, text); - /* Restore previous settings. */ - output_prefixing_rule (buffer) = rule; - output_line_cutoff (buffer) = line_cutoff; -} - -/* Output MESSAGE verbatim into BUFFER. */ -void -output_verbatim VPARAMS ((output_buffer *buffer, const char *msgid, ...)) -{ - text_info text; - VA_OPEN (ap, msgid); - VA_FIXEDARG (ap, output_buffer *, buffer); - VA_FIXEDARG (ap, const char *, msgid); - text.format_spec = msgid; - text.args_ptr = ≈ - output_do_verbatim (buffer, &text); - VA_CLOSE (ap); -} - - -/* Initialize the diagnostic message outputting machinery. */ -void -diagnostic_initialize (context) - diagnostic_context *context; -{ - memset (context, 0, sizeof *context); - obstack_init (&context->buffer.obstack); - - /* By default, diagnostics are sent to stderr. */ - output_buffer_attached_stream (&context->buffer) = stderr; - - /* By default, we emit prefixes once per message. */ - diagnostic_prefixing_rule (context) = DIAGNOSTICS_SHOW_PREFIX_ONCE; + if (diagnostic->option_index) + { + /* This tests if the user provided the appropriate -Wfoo or + -Wno-foo option. */ + if (! option_enabled (diagnostic->option_index)) + return false; + /* This tests if the user provided the appropriate -Werror=foo + option. */ + if (context->classify_diagnostic[diagnostic->option_index] != DK_UNSPECIFIED) + { + diagnostic->kind = context->classify_diagnostic[diagnostic->option_index]; + } + /* This allows for future extensions, like temporarily disabling + warnings for ranges of source code. */ + if (diagnostic->kind == DK_IGNORED) + return false; + } - diagnostic_starter (context) = default_diagnostic_starter; - diagnostic_finalizer (context) = default_diagnostic_finalizer; - context->warnings_are_errors_message = warnings_are_errors; -} + if (orig_diag_kind == DK_WARNING && diagnostic->kind == DK_ERROR) + context->some_warnings_are_errors = true; -/* Returns true if the next format specifier in TEXT is a format specifier - for a location_t. If so, update the object pointed by LOCUS to reflect - the specified location in *TEXT->args_ptr. */ -static bool -text_specifies_location (text, locus) - text_info *text; - location_t *locus; -{ - const char *p; - /* Skip any leading text. */ - for (p = text->format_spec; *p && *p != '%'; ++p) - ; + context->lock++; - /* Extract the location information if any. */ - if (*p == '%' && *++p == 'H') + if (diagnostic->kind == DK_ICE && plugins_active_p ()) { - *locus = *va_arg (*text->args_ptr, location_t *); - text->format_spec = p + 1; - return true; + fnotice (stderr, "*** WARNING *** there are active plugins, do not report" + " this as a bug unless you can reproduce it without enabling" + " any plugins.\n"); + dump_active_plugins (stderr); } - return false; -} - -void -diagnostic_set_info (diagnostic, msgid, args, file, line, kind) - diagnostic_info *diagnostic; - const char *msgid; - va_list *args; - const char *file; - int line; - diagnostic_t kind; -{ - diagnostic->message.format_spec = msgid; - diagnostic->message.args_ptr = args; - /* If the diagnostic message doesn't specify a loccation, - use FILE and LINE. */ - if (!text_specifies_location (&diagnostic->message, &diagnostic->location)) + if (diagnostic->kind == DK_ICE) { - diagnostic->location.file = file; - diagnostic->location.line = line; +#ifndef ENABLE_CHECKING + /* When not checking, ICEs are converted to fatal errors when an + error has already occurred. This is counteracted by + abort_on_error. */ + if ((diagnostic_kind_count (context, DK_ERROR) > 0 + || diagnostic_kind_count (context, DK_SORRY) > 0) + && !context->abort_on_error) + { + expanded_location s = expand_location (diagnostic->location); + fnotice (stderr, "%s:%d: confused by earlier errors, bailing out\n", + s.file, s.line); + exit (ICE_EXIT_CODE); + } +#endif + if (context->internal_error) + (*context->internal_error) (diagnostic->message.format_spec, + diagnostic->message.args_ptr); } - diagnostic->kind = kind; -} + ++diagnostic_kind_count (context, diagnostic->kind); -/* Return a malloc'd string describing a location. The caller is - responsible for freeing the memory. */ -char * -diagnostic_build_prefix (diagnostic) - diagnostic_info *diagnostic; -{ - static const char *diagnostic_kind_text[] = { -#define DEFINE_DIAGNOSTIC_KIND(K, T) (T), -#include "diagnostic.def" -#undef DEFINE_DIAGNOSTIC_KIND - "must-not-happen" - }; - if (diagnostic->kind >= DK_LAST_DIAGNOSTIC_KIND) - abort(); - - return diagnostic->location.file - ? build_message_string ("%s:%d: %s", - diagnostic->location.file, - diagnostic->location.line, - _(diagnostic_kind_text[diagnostic->kind])) - : build_message_string ("%s: %s", progname, - _(diagnostic_kind_text[diagnostic->kind])); -} + saved_format_spec = diagnostic->message.format_spec; + if (context->show_option_requested) + { + const char * option_text = NULL; -/* Report a diagnostic MESSAGE at the declaration DECL. - MSG is a format string which uses %s to substitute the declaration - name; subsequent substitutions are a la output_format. */ -static void -diagnostic_for_decl (diagnostic, decl) - diagnostic_info *diagnostic; - tree decl; -{ - if (global_dc->lock++) - error_recursion (global_dc); + if (diagnostic->option_index) + { + /* A warning classified as an error. */ + if ((orig_diag_kind == DK_WARNING || orig_diag_kind == DK_PEDWARN) + && diagnostic->kind == DK_ERROR) + option_text + = ACONCAT ((cl_options[OPT_Werror_].opt_text, + /* Skip over "-W". */ + cl_options[diagnostic->option_index].opt_text + 2, + NULL)); + /* A warning with option. */ + else + option_text = cl_options[diagnostic->option_index].opt_text; + } + /* A warning without option classified as an error. */ + else if (orig_diag_kind == DK_WARNING || orig_diag_kind == DK_PEDWARN + || diagnostic->kind == DK_WARNING) + { + if (context->warning_as_error_requested) + option_text = cl_options[OPT_Werror].opt_text; + else + option_text = _("enabled by default"); + } - if (diagnostic_count_diagnostic (global_dc, diagnostic->kind)) - { - diagnostic_report_current_function (global_dc); - output_set_prefix - (&global_dc->buffer, diagnostic_build_prefix (diagnostic)); - format_with_decl (&global_dc->buffer, &diagnostic->message, decl); - output_flush (&global_dc->buffer); - output_destroy_prefix (&global_dc->buffer); + if (option_text) + diagnostic->message.format_spec + = ACONCAT ((diagnostic->message.format_spec, + " ", + "[", option_text, "]", + NULL)); } - global_dc->lock--; -} + diagnostic->message.locus = &diagnostic->location; + diagnostic->message.x_data = &diagnostic->x_data; + diagnostic->x_data = NULL; + pp_format (context->printer, &diagnostic->message); + (*diagnostic_starter (context)) (context, diagnostic); + pp_output_formatted_text (context->printer); + (*diagnostic_finalizer (context)) (context, diagnostic); + pp_flush (context->printer); + diagnostic_action_after_output (context, diagnostic); + diagnostic->message.format_spec = saved_format_spec; + diagnostic->x_data = NULL; + + context->lock--; -void -diagnostic_flush_buffer (context) - diagnostic_context *context; -{ - output_buffer_to_stream (&context->buffer); - fflush (output_buffer_attached_stream (&context->buffer)); + return true; } -/* Count a diagnostic. Return true if the message should be printed. */ -bool -diagnostic_count_diagnostic (context, kind) - diagnostic_context *context; - diagnostic_t kind; -{ - switch (kind) - { - default: - abort(); - break; +/* Given a partial pathname as input, return another pathname that + shares no directory elements with the pathname of __FILE__. This + is used by fancy_abort() to print `Internal compiler error in expr.c' + instead of `Internal compiler error in ../../GCC/gcc/expr.c'. */ - case DK_FATAL: case DK_ICE: case DK_SORRY: - case DK_ANACHRONISM: case DK_NOTE: - ++diagnostic_kind_count (context, kind); - break; +const char * +trim_filename (const char *name) +{ + static const char this_file[] = __FILE__; + const char *p = name, *q = this_file; - case DK_WARNING: - if (!diagnostic_report_warnings_p ()) - return false; - else if (!warnings_are_errors) - { - ++diagnostic_kind_count (context, DK_WARNING); - break; - } - /* else fall through. */ + /* First skip any "../" in each filename. This allows us to give a proper + reference to a file in a subdirectory. */ + while (p[0] == '.' && p[1] == '.' && IS_DIR_SEPARATOR (p[2])) + p += 3; - case DK_ERROR: - if (kind == DK_WARNING && context->warnings_are_errors_message) - { - output_verbatim (&context->buffer, - "%s: warnings being treated as errors\n", progname); - context->warnings_are_errors_message = false; - } - ++diagnostic_kind_count (context, DK_ERROR); - break; - } + while (q[0] == '.' && q[1] == '.' && IS_DIR_SEPARATOR (q[2])) + q += 3; - return true; -} + /* Now skip any parts the two filenames have in common. */ + while (*p == *q && *p != 0 && *q != 0) + p++, q++; -/* Print a diagnostic MSGID on FILE. This is just fprintf, except it - runs its second argument through gettext. */ -void -fnotice VPARAMS ((FILE *file, const char *msgid, ...)) -{ - VA_OPEN (ap, msgid); - VA_FIXEDARG (ap, FILE *, file); - VA_FIXEDARG (ap, const char *, msgid); + /* Now go backwards until the previous directory separator. */ + while (p > name && !IS_DIR_SEPARATOR (p[-1])) + p--; - vfprintf (file, _(msgid), ap); - VA_CLOSE (ap); + return p; } + +/* Standard error reporting routines in increasing order of severity. + All of these take arguments like printf. */ - -/* Print a fatal I/O error message. Argument are like printf. - Also include a system error message based on `errno'. */ +/* Text to be emitted verbatim to the error message stream; this + produces no prefix and disables line-wrapping. Use rarely. */ void -fatal_io_error VPARAMS ((const char *msgid, ...)) +verbatim (const char *gmsgid, ...) { text_info text; - VA_OPEN (ap, msgid); - VA_FIXEDARG (ap, const char *, msgid); + va_list ap; - text.format_spec = _(msgid); + va_start (ap, gmsgid); + text.err_no = errno; text.args_ptr = ≈ - output_printf (&global_dc->buffer, "%s: %s: ", progname, xstrerror (errno)); - output_format (&global_dc->buffer, &text); - output_flush (&global_dc->buffer); - VA_CLOSE (ap); - exit (FATAL_EXIT_CODE); + text.format_spec = _(gmsgid); + text.locus = NULL; + text.x_data = NULL; + pp_format_verbatim (global_dc->printer, &text); + pp_flush (global_dc->printer); + va_end (ap); } -/* Issue a pedantic warning MSGID. */ -void -pedwarn VPARAMS ((const char *msgid, ...)) +bool +emit_diagnostic (diagnostic_t kind, location_t location, int opt, + const char *gmsgid, ...) { diagnostic_info diagnostic; - VA_OPEN (ap, msgid); - VA_FIXEDARG (ap, const char *, msgid); + va_list ap; - diagnostic_set_info (&diagnostic, _(msgid), &ap, input_filename, lineno, - pedantic_error_kind ()); - report_diagnostic (&diagnostic); - VA_CLOSE (ap); -} + va_start (ap, gmsgid); + if (kind == DK_PERMERROR) + { + diagnostic_set_info (&diagnostic, gmsgid, &ap, location, + permissive_error_kind ()); + diagnostic.option_index = OPT_fpermissive; + } + else { + diagnostic_set_info (&diagnostic, gmsgid, &ap, location, kind); + if (kind == DK_WARNING || kind == DK_PEDWARN) + diagnostic.option_index = opt; + } + va_end (ap); -/* Issue a pedantic warning about DECL. */ -void -pedwarn_with_decl VPARAMS ((tree decl, const char *msgid, ...)) -{ - diagnostic_info diagnostic; - VA_OPEN (ap, msgid); - VA_FIXEDARG (ap, tree, decl); - VA_FIXEDARG (ap, const char *, msgid); - - diagnostic_set_info (&diagnostic, _(msgid), &ap, - DECL_SOURCE_FILE (decl), DECL_SOURCE_LINE (decl), - pedantic_error_kind ()); - - /* We don't want -pedantic-errors to cause the compilation to fail from - "errors" in system header files. Sometimes fixincludes can't fix what's - broken (eg: unsigned char bitfields - fixing it may change the alignment - which will cause programs to mysteriously fail because the C library - or kernel uses the original layout). There's no point in issuing a - warning either, it's just unnecessary noise. */ - if (!DECL_IN_SYSTEM_HEADER (decl)) - diagnostic_for_decl (&diagnostic, decl); - VA_CLOSE (ap); + return report_diagnostic (&diagnostic); } -/* Same as above but within the context FILE and LINE. */ +/* An informative note at LOCATION. Use this for additional details on an error + message. */ void -pedwarn_with_file_and_line VPARAMS ((const char *file, int line, - const char *msgid, ...)) +inform (location_t location, const char *gmsgid, ...) { diagnostic_info diagnostic; - VA_OPEN (ap, msgid); - VA_FIXEDARG (ap, const char *, file); - VA_FIXEDARG (ap, int, line); - VA_FIXEDARG (ap, const char *, msgid); + va_list ap; - diagnostic_set_info (&diagnostic, _(msgid), &ap, file, line, - pedantic_error_kind ()); + va_start (ap, gmsgid); + diagnostic_set_info (&diagnostic, gmsgid, &ap, location, DK_NOTE); report_diagnostic (&diagnostic); - VA_CLOSE (ap); + va_end (ap); } -/* Just apologize with MSGID. */ +/* An informative note at LOCATION. Use this for additional details on an + error message. */ void -sorry VPARAMS ((const char *msgid, ...)) +inform_n (location_t location, int n, const char *singular_gmsgid, + const char *plural_gmsgid, ...) { diagnostic_info diagnostic; + va_list ap; - VA_OPEN (ap, msgid); - VA_FIXEDARG (ap, const char *, msgid); - - ++sorrycount; - diagnostic_set_info (&diagnostic, _(msgid), &ap, - input_filename, lineno, DK_SORRY); - - output_set_prefix - (&global_dc->buffer, diagnostic_build_prefix (&diagnostic)); - output_printf (&global_dc->buffer, "sorry, not implemented: "); - output_format (&global_dc->buffer, &diagnostic.message); - output_flush (&global_dc->buffer); - VA_CLOSE (ap); -} - -/* Called when the start of a function definition is parsed, - this function prints on stderr the name of the function. */ -void -announce_function (decl) - tree decl; -{ - if (!quiet_flag) - { - if (rtl_dump_and_exit) - verbatim ("%s ", IDENTIFIER_POINTER (DECL_NAME (decl))); - else - verbatim (" %s", (*lang_hooks.decl_printable_name) (decl, 2)); - fflush (stderr); - output_needs_newline (&global_dc->buffer) = true; - diagnostic_set_last_function (global_dc); - } + va_start (ap, plural_gmsgid); + diagnostic_set_info_translated (&diagnostic, + ngettext (singular_gmsgid, plural_gmsgid, n), + &ap, location, DK_NOTE); + report_diagnostic (&diagnostic); + va_end (ap); } -/* The default function to print out name of current function that caused - an error. */ -void -lhd_print_error_function (context, file) - diagnostic_context *context; - const char *file; +/* A warning at INPUT_LOCATION. Use this for code which is correct according + to the relevant language specification but is likely to be buggy anyway. + Returns true if the warning was printed, false if it was inhibited. */ +bool +warning (int opt, const char *gmsgid, ...) { - if (diagnostic_last_function_changed (context)) - { - const char *old_prefix = output_prefix (&context->buffer); - char *new_prefix = file ? build_message_string ("%s: ", file) : NULL; - - output_set_prefix (&context->buffer, new_prefix); + diagnostic_info diagnostic; + va_list ap; - if (current_function_decl == NULL) - output_add_string (&context->buffer, _("At top level:")); - else - { - if (TREE_CODE (TREE_TYPE (current_function_decl)) == METHOD_TYPE) - output_printf - (&context->buffer, "In member function `%s':", - (*lang_hooks.decl_printable_name) (current_function_decl, 2)); - else - output_printf - (&context->buffer, "In function `%s':", - (*lang_hooks.decl_printable_name) (current_function_decl, 2)); - } - output_add_newline (&context->buffer); + va_start (ap, gmsgid); + diagnostic_set_info (&diagnostic, gmsgid, &ap, input_location, DK_WARNING); + diagnostic.option_index = opt; - diagnostic_set_last_function (context); - output_buffer_to_stream (&context->buffer); - context->buffer.state.prefix = old_prefix; - free ((char*) new_prefix); - } + va_end (ap); + return report_diagnostic (&diagnostic); } -/* Prints out, if necessary, the name of the current function - that caused an error. Called from all error and warning functions. - We ignore the FILE parameter, as it cannot be relied upon. */ +/* A warning at LOCATION. Use this for code which is correct according to the + relevant language specification but is likely to be buggy anyway. + Returns true if the warning was printed, false if it was inhibited. */ -void -diagnostic_report_current_function (context) - diagnostic_context *context; +bool +warning_at (location_t location, int opt, const char *gmsgid, ...) { - diagnostic_report_current_module (context); - (*lang_hooks.print_error_function) (context, input_filename); + diagnostic_info diagnostic; + va_list ap; + + va_start (ap, gmsgid); + diagnostic_set_info (&diagnostic, gmsgid, &ap, location, DK_WARNING); + diagnostic.option_index = opt; + va_end (ap); + return report_diagnostic (&diagnostic); } -void -error_with_file_and_line VPARAMS ((const char *file, int line, - const char *msgid, ...)) -{ - diagnostic_info diagnostic; +/* A "pedantic" warning at LOCATION: issues a warning unless + -pedantic-errors was given on the command line, in which case it + issues an error. Use this for diagnostics required by the relevant + language standard, if you have chosen not to make them errors. - VA_OPEN (ap, msgid); - VA_FIXEDARG (ap, const char *, file); - VA_FIXEDARG (ap, int, line); - VA_FIXEDARG (ap, const char *, msgid); + Note that these diagnostics are issued independent of the setting + of the -pedantic command-line switch. To get a warning enabled + only with that switch, use either "if (pedantic) pedwarn + (OPT_pedantic,...)" or just "pedwarn (OPT_pedantic,..)". To get a + pedwarn independently of the -pedantic switch use "pedwarn (0,...)". - diagnostic_set_info (&diagnostic, msgid, &ap, file, line, DK_ERROR); - report_diagnostic (&diagnostic); - VA_CLOSE (ap); -} + Returns true if the warning was printed, false if it was inhibited. */ -void -error_with_decl VPARAMS ((tree decl, const char *msgid, ...)) +bool +pedwarn (location_t location, int opt, const char *gmsgid, ...) { diagnostic_info diagnostic; - VA_OPEN (ap, msgid); - VA_FIXEDARG (ap, tree, decl); - VA_FIXEDARG (ap, const char *, msgid); - - diagnostic_set_info (&diagnostic, msgid, &ap, - DECL_SOURCE_FILE (decl), DECL_SOURCE_LINE (decl), - DK_ERROR); - diagnostic_for_decl (&diagnostic, decl); - VA_CLOSE (ap); + va_list ap; + + va_start (ap, gmsgid); + diagnostic_set_info (&diagnostic, gmsgid, &ap, location, DK_PEDWARN); + diagnostic.option_index = opt; + va_end (ap); + return report_diagnostic (&diagnostic); } +/* A "permissive" error at LOCATION: issues an error unless + -fpermissive was given on the command line, in which case it issues + a warning. Use this for things that really should be errors but we + want to support legacy code. -/* Report an error message. The arguments are like that of printf. */ + Returns true if the warning was printed, false if it was inhibited. */ -void -error VPARAMS ((const char *msgid, ...)) +bool +permerror (location_t location, const char *gmsgid, ...) { diagnostic_info diagnostic; + va_list ap; - VA_OPEN (ap, msgid); - VA_FIXEDARG (ap, const char *, msgid); - - diagnostic_set_info (&diagnostic, msgid, &ap, input_filename, lineno, - DK_ERROR); - report_diagnostic (&diagnostic); - VA_CLOSE (ap); + va_start (ap, gmsgid); + diagnostic_set_info (&diagnostic, gmsgid, &ap, location, + permissive_error_kind ()); + diagnostic.option_index = OPT_fpermissive; + va_end (ap); + return report_diagnostic (&diagnostic); } -/* Likewise, except that the compilation is terminated after printing the - error message. */ - +/* A hard error: the code is definitely ill-formed, and an object file + will not be produced. */ void -fatal_error VPARAMS ((const char *msgid, ...)) +error (const char *gmsgid, ...) { diagnostic_info diagnostic; + va_list ap; - VA_OPEN (ap, msgid); - VA_FIXEDARG (ap, const char *, msgid); - - diagnostic_set_info (&diagnostic, msgid, &ap, input_filename, lineno, - DK_FATAL); + va_start (ap, gmsgid); + diagnostic_set_info (&diagnostic, gmsgid, &ap, input_location, DK_ERROR); report_diagnostic (&diagnostic); - VA_CLOSE (ap); - - fnotice (stderr, "compilation terminated.\n"); - exit (FATAL_EXIT_CODE); + va_end (ap); } +/* A hard error: the code is definitely ill-formed, and an object file + will not be produced. */ void -internal_error VPARAMS ((const char *msgid, ...)) +error_n (location_t location, int n, const char *singular_gmsgid, + const char *plural_gmsgid, ...) { diagnostic_info diagnostic; + va_list ap; - VA_OPEN (ap, msgid); - VA_FIXEDARG (ap, const char *, msgid); - - if (global_dc->lock) - error_recursion (global_dc); - -#ifndef ENABLE_CHECKING - if (errorcount > 0 || sorrycount > 0) - { - fnotice (stderr, "%s:%d: confused by earlier errors, bailing out\n", - input_filename, lineno); - exit (FATAL_EXIT_CODE); - } -#endif - - if (global_dc->internal_error != 0) - (*global_dc->internal_error) (_(msgid), &ap); - - diagnostic_set_info (&diagnostic, msgid, &ap, input_filename, lineno, - DK_ICE); + va_start (ap, plural_gmsgid); + diagnostic_set_info_translated (&diagnostic, + ngettext (singular_gmsgid, plural_gmsgid, n), + &ap, location, DK_ERROR); report_diagnostic (&diagnostic); - VA_CLOSE (ap); - - fnotice (stderr, -"Please submit a full bug report,\n\ -with preprocessed source if appropriate.\n\ -See %s for instructions.\n", GCCBUGURL); - exit (FATAL_EXIT_CODE); + va_end (ap); } +/* Same as ebove, but use location LOC instead of input_location. */ void -warning_with_file_and_line VPARAMS ((const char *file, int line, - const char *msgid, ...)) +error_at (location_t loc, const char *gmsgid, ...) { diagnostic_info diagnostic; + va_list ap; - VA_OPEN (ap, msgid); - VA_FIXEDARG (ap, const char *, file); - VA_FIXEDARG (ap, int, line); - VA_FIXEDARG (ap, const char *, msgid); - - diagnostic_set_info (&diagnostic, msgid, &ap, file, line, DK_WARNING); + va_start (ap, gmsgid); + diagnostic_set_info (&diagnostic, gmsgid, &ap, loc, DK_ERROR); report_diagnostic (&diagnostic); - VA_CLOSE (ap); + va_end (ap); } +/* "Sorry, not implemented." Use for a language feature which is + required by the relevant specification but not implemented by GCC. + An object file will not be produced. */ void -warning_with_decl VPARAMS ((tree decl, const char *msgid, ...)) +sorry (const char *gmsgid, ...) { diagnostic_info diagnostic; - VA_OPEN (ap, msgid); - VA_FIXEDARG (ap, tree, decl); - VA_FIXEDARG (ap, const char *, msgid); - - diagnostic_set_info (&diagnostic, msgid, &ap, - DECL_SOURCE_FILE (decl), DECL_SOURCE_LINE (decl), - DK_WARNING); - diagnostic_for_decl (&diagnostic, decl); - VA_CLOSE (ap); + va_list ap; + + va_start (ap, gmsgid); + diagnostic_set_info (&diagnostic, gmsgid, &ap, input_location, DK_SORRY); + report_diagnostic (&diagnostic); + va_end (ap); } +/* An error which is severe enough that we make no attempt to + continue. Do not use this for internal consistency checks; that's + internal_error. Use of this function should be rare. */ void -warning VPARAMS ((const char *msgid, ...)) +fatal_error (const char *gmsgid, ...) { diagnostic_info diagnostic; + va_list ap; - VA_OPEN (ap, msgid); - VA_FIXEDARG (ap, const char *, msgid); - - diagnostic_set_info (&diagnostic, msgid, &ap, input_filename, lineno, - DK_WARNING); + va_start (ap, gmsgid); + diagnostic_set_info (&diagnostic, gmsgid, &ap, input_location, DK_FATAL); report_diagnostic (&diagnostic); - VA_CLOSE (ap); -} - + va_end (ap); -/* Same as above but use diagnostic_buffer. */ + gcc_unreachable (); +} +/* An internal consistency check has failed. We make no attempt to + continue. Note that unless there is debugging value to be had from + a more specific message, or some other good reason, you should use + abort () instead of calling this function directly. */ void -verbatim VPARAMS ((const char *msgid, ...)) +internal_error (const char *gmsgid, ...) { - text_info text; - VA_OPEN (ap, msgid); - VA_FIXEDARG (ap, const char *, msgid); + diagnostic_info diagnostic; + va_list ap; - text.format_spec = _(msgid); - text.args_ptr = ≈ - output_do_verbatim (&global_dc->buffer, &text); - output_buffer_to_stream (&global_dc->buffer); - VA_CLOSE (ap); -} + va_start (ap, gmsgid); + diagnostic_set_info (&diagnostic, gmsgid, &ap, input_location, DK_ICE); + report_diagnostic (&diagnostic); + va_end (ap); -/* Report a diagnostic message (an error or a warning) as specified by - DC. This function is *the* subroutine in terms of which front-ends - should implement their specific diagnostic handling modules. The - front-end independent format specifiers are exactly those described - in the documentation of output_format. */ + gcc_unreachable (); +} + +/* Special case error functions. Most are implemented in terms of the + above, or should be. */ +/* Print a diagnostic MSGID on FILE. This is just fprintf, except it + runs its second argument through gettext. */ void -diagnostic_report_diagnostic (context, diagnostic) - diagnostic_context *context; - diagnostic_info *diagnostic; +fnotice (FILE *file, const char *cmsgid, ...) { - if (context->lock++) - error_recursion (context); + va_list ap; - if (diagnostic_count_diagnostic (context, diagnostic->kind)) - { - (*diagnostic_starter (context)) (context, diagnostic); - output_format (&context->buffer, &diagnostic->message); - (*diagnostic_finalizer (context)) (context, diagnostic); - output_flush (&context->buffer); - } - - --context->lock; + va_start (ap, cmsgid); + vfprintf (file, _(cmsgid), ap); + va_end (ap); } /* Inform the user that an error occurred while trying to report some @@ -1292,157 +764,42 @@ diagnostic_report_diagnostic (context, diagnostic) This mustn't use internal_error, that will cause infinite recursion. */ static void -error_recursion (context) - diagnostic_context *context; +error_recursion (diagnostic_context *context) { + diagnostic_info diagnostic; + if (context->lock < 3) - output_flush (&context->buffer); + pp_flush (context->printer); fnotice (stderr, "Internal compiler error: Error reporting routines re-entered.\n"); - fnotice (stderr, -"Please submit a full bug report,\n\ -with preprocessed source if appropriate.\n\ -See %s for instructions.\n", GCCBUGURL); - exit (FATAL_EXIT_CODE); -} -/* Given a partial pathname as input, return another pathname that - shares no directory elements with the pathname of __FILE__. This - is used by fancy_abort() to print `Internal compiler error in expr.c' - instead of `Internal compiler error in ../../GCC/gcc/expr.c'. */ - -const char * -trim_filename (name) - const char *name; -{ - static const char this_file[] = __FILE__; - const char *p = name, *q = this_file; - - /* First skip any "../" in each filename. This allows us to give a proper - reference to a file in a subdirectory. */ - while (p[0] == '.' && p[1] == '.' - && (p[2] == DIR_SEPARATOR -#ifdef DIR_SEPARATOR_2 - || p[2] == DIR_SEPARATOR_2 -#endif - )) - p += 3; + /* Call diagnostic_action_after_output to get the "please submit a bug + report" message. It only looks at the kind field of diagnostic_info. */ + diagnostic.kind = DK_ICE; + diagnostic_action_after_output (context, &diagnostic); - while (q[0] == '.' && q[1] == '.' - && (q[2] == DIR_SEPARATOR -#ifdef DIR_SEPARATOR_2 - || p[2] == DIR_SEPARATOR_2 -#endif - )) - q += 3; - - /* Now skip any parts the two filenames have in common. */ - while (*p == *q && *p != 0 && *q != 0) - p++, q++; - - /* Now go backwards until the previous directory separator. */ - while (p > name && p[-1] != DIR_SEPARATOR -#ifdef DIR_SEPARATOR_2 - && p[-1] != DIR_SEPARATOR_2 -#endif - ) - p--; - - return p; + /* Do not use gcc_unreachable here; that goes through internal_error + and therefore would cause infinite recursion. */ + real_abort (); } -/* Report an internal compiler error in a friendly manner and without - dumping core. */ - -void -fancy_abort (file, line, function) - const char *file; - int line; - const char *function; -{ - internal_error ("Internal compiler error in %s, at %s:%d", - function, trim_filename (file), line); -} +/* Report an internal compiler error in a friendly manner. This is + the function that gets called upon use of abort() in the source + code generally, thanks to a special macro. */ void -diagnostic_report_current_module (context) - diagnostic_context *context; -{ - struct file_stack *p; - - if (output_needs_newline (&context->buffer)) - { - output_add_newline (&context->buffer); - output_needs_newline (&context->buffer) = false; - } - - if (input_file_stack && input_file_stack->next != 0 - && diagnostic_last_module_changed (context)) - { - for (p = input_file_stack->next; p; p = p->next) - if (p == input_file_stack->next) - output_verbatim (&context->buffer, - "In file included from %s:%d", p->name, p->line); - else - output_verbatim (&context->buffer, - ",\n from %s:%d", p->name, p->line); - output_verbatim (&context->buffer, ":\n"); - diagnostic_set_last_module (context); - } -} - -static void -default_diagnostic_starter (context, diagnostic) - diagnostic_context *context; - diagnostic_info *diagnostic; +fancy_abort (const char *file, int line, const char *function) { - diagnostic_report_current_function (context); - output_set_prefix (&context->buffer, diagnostic_build_prefix (diagnostic)); + internal_error ("in %s, at %s:%d", function, trim_filename (file), line); } +/* Really call the system 'abort'. This has to go right at the end of + this file, so that there are no functions after it that call abort + and get the system abort instead of our macro. */ +#undef abort static void -default_diagnostic_finalizer (context, diagnostic) - diagnostic_context *context; - diagnostic_info *diagnostic __attribute__((unused)); +real_abort (void) { - output_destroy_prefix (&context->buffer); -} - -void -warn_deprecated_use (node) - tree node; -{ - if (node == 0 || !warn_deprecated_decl) - return; - - if (DECL_P (node)) - warning ("`%s' is deprecated (declared at %s:%d)", - IDENTIFIER_POINTER (DECL_NAME (node)), - DECL_SOURCE_FILE (node), DECL_SOURCE_LINE (node)); - else if (TYPE_P (node)) - { - const char *what = NULL; - tree decl = TYPE_STUB_DECL (node); - - if (TREE_CODE (TYPE_NAME (node)) == IDENTIFIER_NODE) - what = IDENTIFIER_POINTER (TYPE_NAME (node)); - else if (TREE_CODE (TYPE_NAME (node)) == TYPE_DECL - && DECL_NAME (TYPE_NAME (node))) - what = IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (node))); - - if (what) - { - if (decl) - warning ("`%s' is deprecated (declared at %s:%d)", what, - DECL_SOURCE_FILE (decl), DECL_SOURCE_LINE (decl)); - else - warning ("`%s' is deprecated", what); - } - else if (decl) - warning ("type is deprecated (declared at %s:%d)", - DECL_SOURCE_FILE (decl), DECL_SOURCE_LINE (decl)); - else - warning ("type is deprecated"); - } + abort (); }