/* Language-independent diagnostic subroutines for the GNU Compiler Collection
- Copyright (C) 1999, 2000, 2001, 2002, 2003 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 <gdr@codesourcery.com>
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
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
+<http://www.gnu.org/licenses/>. */
/* 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 "coretypes.h"
-#include "tm.h"
-#include "tree.h"
-#include "tm_p.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 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
+#define pedantic_warning_kind() (flag_pedantic_errors ? DK_ERROR : DK_WARNING)
+#define permissive_error_kind() (flag_permissive ? DK_WARNING : DK_ERROR)
/* 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 *));
-static void real_abort PARAMS ((void)) ATTRIBUTE_NORETURN;
-
-extern int rtl_dump_and_exit;
-extern int warnings_are_errors;
+static char *build_message_string (const char *, ...) ATTRIBUTE_PRINTF_1;
+
+static void error_recursion (diagnostic_context *) ATTRIBUTE_NORETURN;
+
+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;
\f
-/* 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;
+/* 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, ...)
{
- /* 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);
- }
-}
+ char *str;
+ va_list ap;
-/* 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);
-}
+ va_start (ap, msg);
+ vasprintf (&str, msg, ap);
+ va_end (ap);
-/* 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 str;
}
-/* 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;
+/* Same as diagnostic_build_prefix, but only the source FILE is given. */
+char *
+file_name_as_prefix (const char *f)
{
- 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;
+ return build_message_string ("%s: ", f);
}
-/* 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;
- }
-}
-/* Zero out any text output so far in BUFFER. */
+\f
+/* Initialize the diagnostic message outputting machinery. */
void
-output_clear_message_text (buffer)
- output_buffer *buffer;
+diagnostic_initialize (diagnostic_context *context)
{
- obstack_free (&buffer->obstack, obstack_base (&buffer->obstack));
- output_text_length (buffer) = 0;
+ /* 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;
}
-/* Zero out any formatting data used so far by BUFFER. */
-static void
-output_clear_data (buffer)
- output_buffer *buffer;
-{
- prefix_was_emitted_for (buffer) = false;
- output_indentation (buffer) = 0;
-}
+/* Do any cleaning up required after the last diagnostic is emitted. */
-/* 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;
+diagnostic_finish (diagnostic_context *context)
{
- 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);
+ /* Some of the errors may actually have been warnings. */
+ if (context->some_warnings_are_errors)
+ {
+ /* -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);
+ }
}
-/* Reinitialize BUFFER. */
+/* Initialize DIAGNOSTIC, where the message MSG has already been
+ translated. */
void
-output_clear (buffer)
- output_buffer *buffer;
+diagnostic_set_info_translated (diagnostic_info *diagnostic, const char *msg,
+ va_list *args, location_t location,
+ diagnostic_t kind)
{
- output_clear_message_text (buffer);
- output_clear_data (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;
}
-/* Finishes constructing a NULL-terminated character string representing
- the BUFFERed message. */
-const char *
-output_finalize_message (buffer)
- output_buffer *buffer;
+/* Initialize DIAGNOSTIC, where the message GMSGID has not yet been
+ translated. */
+void
+diagnostic_set_info (diagnostic_info *diagnostic, const char *gmsgid,
+ va_list *args, location_t location,
+ diagnostic_t kind)
{
- obstack_1grow (&buffer->obstack, '\0');
- return output_message_text (buffer);
+ diagnostic_set_info_translated (diagnostic, _(gmsgid), args, location, kind);
}
-/* Return the amount of characters BUFFER can accept to
- make a full line. */
-int
-output_space_left (buffer)
- const output_buffer *buffer;
+/* Return a malloc'd string describing a location. The caller is
+ responsible for freeing the memory. */
+char *
+diagnostic_build_prefix (diagnostic_info *diagnostic)
{
- return line_wrap_cutoff (buffer) - output_text_length (buffer);
-}
-
-/* Write out BUFFER's prefix. */
-void
-output_emit_prefix (buffer)
- output_buffer *buffer;
+ 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
+diagnostic_action_after_output (diagnostic_context *context,
+ diagnostic_info *diagnostic)
{
- if (buffer->state.prefix != NULL)
+ switch (diagnostic->kind)
{
- switch (output_prefixing_rule (buffer))
- {
- default:
- case DIAGNOSTICS_SHOW_PREFIX_NEVER:
- break;
+ case DK_DEBUG:
+ case DK_NOTE:
+ case DK_ANACHRONISM:
+ case DK_WARNING:
+ 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;
+ 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;
-/* Have BUFFER start a new line. */
-void
-output_add_newline (buffer)
- output_buffer *buffer;
-{
- obstack_1grow (&buffer->obstack, '\n');
- output_text_length (buffer) = 0;
-}
+ case DK_ICE:
+ if (context->abort_on_error)
+ real_abort ();
-/* 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);
+ 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);
+
+ case DK_FATAL:
+ if (context->abort_on_error)
+ real_abort ();
+ diagnostic_finish (context);
+ fnotice (stderr, "compilation terminated.\n");
+ exit (FATAL_EXIT_CODE);
+
+ default:
+ gcc_unreachable ();
+ }
}
-/* Adds a space to BUFFER. */
void
-output_add_space (buffer)
- output_buffer *buffer;
+diagnostic_report_current_module (diagnostic_context *context)
{
- if (output_is_line_wrapping (buffer) && output_space_left (buffer) <= 0)
+ const struct line_map *map;
+
+ if (pp_needs_newline (context->printer))
{
- output_add_newline (buffer);
- return;
+ pp_newline (context->printer);
+ pp_needs_newline (context->printer) = false;
}
- obstack_1grow (&buffer->obstack, ' ');
- ++output_text_length (buffer);
-}
-/* These functions format an INTEGER into BUFFER as suggested by their
- names. */
-void
-output_decimal (buffer, i)
- output_buffer *buffer;
- int i;
-{
- output_formatted_scalar (buffer, "%d", i);
-}
+ if (input_location <= BUILTINS_LOCATION)
+ return;
-static inline void
-output_long_decimal (output_buffer *buffer, long int i)
-{
- output_formatted_scalar (buffer, "%ld", i);
+ map = linemap_lookup (line_table, input_location);
+ if (map && diagnostic_last_module_changed (context, map))
+ {
+ diagnostic_set_last_module (context, map);
+ if (! MAIN_FILE_P (map))
+ {
+ 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
+ pp_verbatim (context->printer,
+ "In file included from %s:%d",
+ map->to_file, LAST_SOURCE_LINE (map));
+ while (! MAIN_FILE_P (map))
+ {
+ 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 inline void
-output_unsigned_decimal (output_buffer *buffer, unsigned int i)
+void
+default_diagnostic_starter (diagnostic_context *context,
+ diagnostic_info *diagnostic)
{
- output_formatted_scalar (buffer, "%u", i);
+ diagnostic_report_current_module (context);
+ pp_set_prefix (context->printer, diagnostic_build_prefix (diagnostic));
}
-static inline void
-output_long_unsigned_decimal (output_buffer *buffer, long unsigned int i)
+void
+default_diagnostic_finalizer (diagnostic_context *context,
+ diagnostic_info *diagnostic ATTRIBUTE_UNUSED)
{
- output_formatted_scalar (buffer, "%lu", i);
+ pp_destroy_prefix (context->printer);
}
-static inline void
-output_octal (output_buffer *buffer, unsigned int i)
+/* 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)
{
- output_formatted_scalar (buffer, "%o", i);
-}
+ diagnostic_t old_kind;
-static inline void
-output_long_octal (output_buffer *buffer, long unsigned int i)
-{
- output_formatted_scalar (buffer, "%lo", i);
-}
+ if (option_index <= 0
+ || option_index >= N_OPTS
+ || new_kind >= DK_LAST_DIAGNOSTIC_KIND)
+ return DK_UNSPECIFIED;
-static inline void
-output_hexadecimal (output_buffer *buffer, unsigned int i)
-{
- output_formatted_scalar (buffer, "%x", i);
+ old_kind = context->classify_diagnostic[option_index];
+ context->classify_diagnostic[option_index] = new_kind;
+ return old_kind;
}
-static inline void
-output_long_hexadecimal (output_buffer *buffer, long unsigned int i)
-{
- output_formatted_scalar (buffer, "%lx", i);
-}
+/* 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. */
-static inline void
-output_pointer (output_buffer *buffer, void *p)
+bool
+diagnostic_report_diagnostic (diagnostic_context *context,
+ diagnostic_info *diagnostic)
{
- output_formatted_scalar (buffer, HOST_PTR_PRINTF, p);
-}
+ location_t location = diagnostic->location;
+ diagnostic_t orig_diag_kind = diagnostic->kind;
+ const char *saved_format_spec;
-/* 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;
-}
+ /* 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;
-/* 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))
+ if (diagnostic->kind == DK_PEDWARN)
{
- output_emit_prefix (buffer);
- if (output_is_line_wrapping (buffer))
- while (start != end && *start == ' ')
- ++start;
+ diagnostic->kind = pedantic_warning_kind ();
+ /* We do this to avoid giving the message for -pedantic-errors. */
+ orig_diag_kind = diagnostic->kind;
}
- output_append_r (buffer, start, end - start);
-}
-
-static void
-output_indent (buffer)
- output_buffer *buffer;
-{
- int n = output_indentation (buffer);
- int i;
+
+ if (diagnostic->kind == DK_NOTE && context->inhibit_notes_p)
+ return false;
- for (i = 0; i < n; ++i)
- output_add_character (buffer, ' ');
-}
+ if (context->lock > 0)
+ {
+ /* 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);
+ }
-/* 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;
-{
- bool is_wrapping = output_is_line_wrapping (buffer);
+ /* 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)
+ {
+ diagnostic->kind = DK_ERROR;
+ }
- while (start != end)
+ if (diagnostic->option_index)
{
- /* 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')
+ /* 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)
{
- output_add_newline (buffer);
- ++start;
+ 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;
}
-}
-
-/* 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));
-}
-/* Append an identifier ID to BUFFER. */
-void
-output_add_identifier (buffer, id)
- output_buffer *buffer;
- tree id;
-{
- output_append (buffer, IDENTIFIER_POINTER (id),
- IDENTIFIER_POINTER (id) + IDENTIFIER_LENGTH (id));
-}
+ if (orig_diag_kind == DK_WARNING && diagnostic->kind == DK_ERROR)
+ context->some_warnings_are_errors = true;
-/* Flush the content of BUFFER onto the attached stream,
- and reinitialize. */
+ context->lock++;
-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 (diagnostic->kind == DK_ICE && plugins_active_p ())
+ {
+ 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);
+ }
-/* 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.
- %p: pointer.
- %%: `%'.
- %*.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)
+ if (diagnostic->kind == DK_ICE)
{
- 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')
+#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)
{
- long_integer = true;
- ++text->format_spec;
+ 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_count (context, diagnostic->kind);
- /* Handle %c, %d, %i, %ld, %li, %lo, %lu, %lx, %o, %s, %u,
- %x, %p, %.*s; %%. And nothing else. Front-ends should install
- printers to grok language specific format specifiers. */
- switch (*text->format_spec)
- {
- 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 'p':
- output_pointer (buffer, va_arg (*text->args_ptr, void *));
- break;
+ saved_format_spec = diagnostic->message.format_spec;
+ if (context->show_option_requested)
+ {
+ const char * option_text = NULL;
- case 'u':
- if (long_integer)
- output_long_unsigned_decimal
- (buffer, va_arg (*text->args_ptr, long unsigned int));
+ 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
- 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));
+ 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
- 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))
- {
- /* Hmmm. The front-end failed to install a format translator
- but called us with an unrecognized format. Or, maybe, the
- translated string just contains an invalid format, or
- has formats in the wrong order. Sorry. */
- abort ();
- }
+ option_text = _("enabled by default");
}
- }
-}
-static char *
-vbuild_message_string (msg, ap)
- const char *msg;
- va_list ap;
-{
- char *str;
+ if (option_text)
+ diagnostic->message.format_spec
+ = ACONCAT ((diagnostic->message.format_spec,
+ " ",
+ "[", option_text, "]",
+ NULL));
+ }
+ 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--;
- vasprintf (&str, msg, ap);
- return str;
+ return true;
}
-/* 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, ...))
+/* 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 (const char *name)
{
- char *str;
+ static const char this_file[] = __FILE__;
+ const char *p = name, *q = this_file;
- VA_OPEN (ap, msg);
- VA_FIXEDARG (ap, const char *, msg);
+ /* 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;
- str = vbuild_message_string (msg, ap);
+ while (q[0] == '.' && q[1] == '.' && IS_DIR_SEPARATOR (q[2]))
+ q += 3;
- VA_CLOSE (ap);
+ /* Now skip any parts the two filenames have in common. */
+ while (*p == *q && *p != 0 && *q != 0)
+ p++, q++;
- return str;
-}
+ /* Now go backwards until the previous directory separator. */
+ while (p > name && !IS_DIR_SEPARATOR (p[-1]))
+ p--;
-/* Same as diagnostic_build_prefix, but only the source FILE is given. */
-char *
-file_name_as_prefix (f)
- const char *f;
-{
- return build_message_string ("%s: ", f);
+ return p;
}
+\f
+/* Standard error reporting routines in increasing order of severity.
+ All of these take arguments like printf. */
-/* Format a message into BUFFER a la printf. */
+/* Text to be emitted verbatim to the error message stream; this
+ produces no prefix and disables line-wrapping. Use rarely. */
void
-output_printf VPARAMS ((struct output_buffer *buffer, const char *msgid, ...))
+verbatim (const char *gmsgid, ...)
{
text_info text;
- VA_OPEN (ap, msgid);
- VA_FIXEDARG (ap, output_buffer *, buffer);
- VA_FIXEDARG (ap, const char *, msgid);
+ va_list ap;
+ va_start (ap, gmsgid);
+ text.err_no = errno;
text.args_ptr = ≈
- text.format_spec = _(msgid);
- output_format (buffer, &text);
- VA_CLOSE (ap);
+ 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);
}
-/* Print a message relevant to the given DECL. */
-static void
-format_with_decl (buffer, text, decl)
- output_buffer *buffer;
- text_info *text;
- tree decl;
+bool
+emit_diagnostic (diagnostic_t kind, location_t location, int opt,
+ const char *gmsgid, ...)
{
- const char *p;
-
- /* 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)
- {
- if (*p == '%')
- {
- if (*(p + 1) == '%')
- ++p;
- else if (*(p + 1) != 's')
- abort ();
- else
- break;
- }
- }
-
- /* Print the left-hand substring. */
- maybe_wrap_text (buffer, text->format_spec, p);
-
- if (*p == '%') /* Print the name. */
- {
- 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;
- }
- }
+ diagnostic_info diagnostic;
+ va_list ap;
- if (*p) /* Print the rest of the message. */
+ va_start (ap, gmsgid);
+ if (kind == DK_PERMERROR)
{
- text->format_spec = p;
- output_format (buffer, text);
+ 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);
-/* 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));
+ return report_diagnostic (&diagnostic);
}
-/* 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. */
+/* An informative note at LOCATION. Use this for additional details on an error
+ message. */
void
-output_verbatim VPARAMS ((output_buffer *buffer, const char *msgid, ...))
+inform (location_t location, const char *gmsgid, ...)
{
- text_info text;
- VA_OPEN (ap, msgid);
- VA_FIXEDARG (ap, output_buffer *, buffer);
- VA_FIXEDARG (ap, const char *, msgid);
+ diagnostic_info diagnostic;
+ va_list ap;
- text.format_spec = msgid;
- text.args_ptr = ≈
- output_do_verbatim (buffer, &text);
- VA_CLOSE (ap);
+ va_start (ap, gmsgid);
+ diagnostic_set_info (&diagnostic, gmsgid, &ap, location, DK_NOTE);
+ report_diagnostic (&diagnostic);
+ va_end (ap);
}
-\f
-/* Initialize the diagnostic message outputting machinery. */
+/* An informative note at LOCATION. Use this for additional details on an
+ error message. */
void
-diagnostic_initialize (context)
- diagnostic_context *context;
+inform_n (location_t location, int n, const char *singular_gmsgid,
+ const char *plural_gmsgid, ...)
{
- 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;
+ diagnostic_info diagnostic;
+ va_list ap;
- diagnostic_starter (context) = default_diagnostic_starter;
- diagnostic_finalizer (context) = default_diagnostic_finalizer;
- context->warnings_are_errors_message = warnings_are_errors;
+ 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);
}
-/* 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;
+/* 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, ...)
{
- const char *p;
- /* Skip any leading text. */
- for (p = text->format_spec; *p && *p != '%'; ++p)
- ;
+ diagnostic_info diagnostic;
+ va_list ap;
- /* Extract the location information if any. */
- if (*p == '%' && *++p == 'H')
- {
- *locus = *va_arg (*text->args_ptr, location_t *);
- text->format_spec = p + 1;
- return true;
- }
+ va_start (ap, gmsgid);
+ diagnostic_set_info (&diagnostic, gmsgid, &ap, input_location, DK_WARNING);
+ diagnostic.option_index = opt;
- return false;
+ va_end (ap);
+ return report_diagnostic (&diagnostic);
}
-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 location,
- use FILE and LINE. */
- if (!text_specifies_location (&diagnostic->message, &diagnostic->location))
- {
- diagnostic->location.file = file;
- diagnostic->location.line = line;
- }
- diagnostic->kind = kind;
-}
+/* 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. */
-/* Return a malloc'd string describing a location. The caller is
- responsible for freeing the memory. */
-char *
-diagnostic_build_prefix (diagnostic)
- diagnostic_info *diagnostic;
+bool
+warning_at (location_t location, int opt, const char *gmsgid, ...)
{
- static const char *const 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]));
+ 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);
}
-/* 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);
+/* 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.
- 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);
- }
- global_dc->lock--;
-}
+ 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,...)".
-void
-diagnostic_flush_buffer (context)
- diagnostic_context *context;
-{
- output_buffer_to_stream (&context->buffer);
- fflush (output_buffer_attached_stream (&context->buffer));
-}
+ Returns true if the warning was printed, false if it was inhibited. */
-/* Count a diagnostic. Return true if the message should be printed. */
bool
-diagnostic_count_diagnostic (context, kind)
- diagnostic_context *context;
- diagnostic_t kind;
+pedwarn (location_t location, int opt, const char *gmsgid, ...)
{
- switch (kind)
- {
- default:
- abort();
- break;
-
- case DK_FATAL: case DK_ICE: case DK_SORRY:
- case DK_ANACHRONISM: case DK_NOTE:
- ++diagnostic_kind_count (context, kind);
- break;
-
- 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. */
-
- 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;
- }
+ diagnostic_info diagnostic;
+ va_list ap;
- return true;
+ va_start (ap, gmsgid);
+ diagnostic_set_info (&diagnostic, gmsgid, &ap, location, DK_PEDWARN);
+ diagnostic.option_index = opt;
+ va_end (ap);
+ return report_diagnostic (&diagnostic);
}
-/* 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);
-
- vfprintf (file, _(msgid), ap);
- VA_CLOSE (ap);
-}
+/* 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.
+ Returns true if the warning was printed, false if it was inhibited. */
-/* Print a fatal I/O error message. Argument are like printf.
- Also include a system error message based on `errno'. */
-void
-fatal_io_error VPARAMS ((const char *msgid, ...))
+bool
+permerror (location_t location, 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_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);
+ 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);
}
-/* Issue a pedantic warning MSGID. */
+/* A hard error: the code is definitely ill-formed, and an object file
+ will not be produced. */
void
-pedwarn VPARAMS ((const char *msgid, ...))
+error (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, input_line,
- pedantic_error_kind ());
+ va_start (ap, gmsgid);
+ diagnostic_set_info (&diagnostic, gmsgid, &ap, input_location, DK_ERROR);
report_diagnostic (&diagnostic);
- VA_CLOSE (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);
+ va_end (ap);
}
-/* Just apologize with MSGID. */
+/* A hard error: the code is definitely ill-formed, and an object file
+ will not be produced. */
void
-sorry 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);
-
- ++sorrycount;
- diagnostic_set_info (&diagnostic, _(msgid), &ap,
- input_filename, input_line, DK_SORRY);
-
- output_set_prefix
- (&global_dc->buffer, diagnostic_build_prefix (&diagnostic));
- 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);
- }
-}
-
-/* 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;
-{
- 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);
-
- 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);
-
- diagnostic_set_last_function (context);
- output_buffer_to_stream (&context->buffer);
- context->buffer.state.prefix = old_prefix;
- free ((char*) new_prefix);
- }
-}
-
-/* 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. */
-
-void
-diagnostic_report_current_function (context)
- diagnostic_context *context;
-{
- diagnostic_report_current_module (context);
- (*lang_hooks.print_error_function) (context, input_filename);
-}
-
-void
-error_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),
- DK_ERROR);
- diagnostic_for_decl (&diagnostic, decl);
- VA_CLOSE (ap);
+ va_start (ap, plural_gmsgid);
+ diagnostic_set_info_translated (&diagnostic,
+ ngettext (singular_gmsgid, plural_gmsgid, n),
+ &ap, location, DK_ERROR);
+ report_diagnostic (&diagnostic);
+ va_end (ap);
}
-
-/* Report an error message. The arguments are like that of printf. */
-
+/* Same as ebove, but use location LOC instead of input_location. */
void
-error VPARAMS ((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 *, msgid);
-
- diagnostic_set_info (&diagnostic, msgid, &ap, input_filename, input_line,
- DK_ERROR);
+ va_start (ap, gmsgid);
+ diagnostic_set_info (&diagnostic, gmsgid, &ap, loc, DK_ERROR);
report_diagnostic (&diagnostic);
- VA_CLOSE (ap);
+ va_end (ap);
}
-/* Likewise, except that the compilation is terminated after printing the
- error message. */
-
+/* "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
-fatal_error VPARAMS ((const char *msgid, ...))
+sorry (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, input_line,
- DK_FATAL);
+ va_start (ap, gmsgid);
+ diagnostic_set_info (&diagnostic, gmsgid, &ap, input_location, DK_SORRY);
report_diagnostic (&diagnostic);
- VA_CLOSE (ap);
-
- fnotice (stderr, "compilation terminated.\n");
- exit (FATAL_EXIT_CODE);
+ 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
-internal_error 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);
-
- 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, input_line);
- 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, input_line,
- DK_ICE);
+ va_start (ap, gmsgid);
+ diagnostic_set_info (&diagnostic, gmsgid, &ap, input_location, DK_FATAL);
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", bug_report_url);
- exit (FATAL_EXIT_CODE);
-}
+ va_end (ap);
-void
-warning_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),
- DK_WARNING);
- diagnostic_for_decl (&diagnostic, decl);
- VA_CLOSE (ap);
+ 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
-warning VPARAMS ((const char *msgid, ...))
+internal_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, input_line,
- DK_WARNING);
+ va_start (ap, gmsgid);
+ diagnostic_set_info (&diagnostic, gmsgid, &ap, input_location, DK_ICE);
report_diagnostic (&diagnostic);
- VA_CLOSE (ap);
-}
-
+ va_end (ap);
-/* Same as above but use diagnostic_buffer. */
-
-void
-verbatim VPARAMS ((const char *msgid, ...))
-{
- text_info text;
- VA_OPEN (ap, msgid);
- VA_FIXEDARG (ap, const char *, msgid);
-
- text.format_spec = _(msgid);
- text.args_ptr = ≈
- output_do_verbatim (&global_dc->buffer, &text);
- output_buffer_to_stream (&global_dc->buffer);
- VA_CLOSE (ap);
+ gcc_unreachable ();
}
+\f
+/* Special case error functions. Most are implemented in terms of the
+ above, or should be. */
-/* 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. */
-
+/* 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);
- }
-
- if (context->abort_on_error && diagnostic->kind <= DK_ERROR)
- real_abort();
- --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
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", bug_report_url);
- 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'. */
+ /* 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);
-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;
-
- 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. */
+/* 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
-fancy_abort (file, line, function)
- const char *file;
- int line;
- const char *function;
+fancy_abort (const char *file, int line, const char *function)
{
internal_error ("in %s, at %s:%d", function, trim_filename (file), line);
}
-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->location.file, p->location.line);
- else
- output_verbatim (&context->buffer,
- ",\n from %s:%d",
- p->location.file, p->location.line);
- output_verbatim (&context->buffer, ":\n");
- diagnostic_set_last_module (context);
- }
-}
-
-static void
-default_diagnostic_starter (context, diagnostic)
- diagnostic_context *context;
- diagnostic_info *diagnostic;
-{
- diagnostic_report_current_function (context);
- output_set_prefix (&context->buffer, diagnostic_build_prefix (diagnostic));
-}
-
-static void
-default_diagnostic_finalizer (context, diagnostic)
- diagnostic_context *context;
- diagnostic_info *diagnostic __attribute__((unused));
-{
- output_destroy_prefix (&context->buffer);
-}
-
-void
-inform VPARAMS ((const char *msgid, ...))
-{
- diagnostic_info diagnostic;
-
- VA_OPEN (ap, msgid);
- VA_FIXEDARG (ap, const char *, msgid);
-
- diagnostic_set_info (&diagnostic, msgid, &ap, input_filename, input_line,
- DK_NOTE);
- report_diagnostic (&diagnostic);
- VA_CLOSE (ap);
-}
-
-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");
- }
-}
-
/* 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
-real_abort ()
+static void
+real_abort (void)
{
abort ();
}
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