Initial checkin of GCC 4.9.0 from trunk (r208799).

Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba

1 files changed, 299 insertions, 0 deletions

diff --git a/gcc-4.9/gcc/diagnostic.h b/gcc-4.9/gcc/diagnostic.h
new file mode 100644
index 000000000..6122938ea
--- /dev/null
+++ b/gcc-4.9/gcc/diagnostic.h
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+/* Various declarations for language-independent diagnostics subroutines.
+   Copyright (C) 2000-2014 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 3, or (at your option) any later
+version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+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 COPYING3.  If not see
+<http://www.gnu.org/licenses/>.  */
+
+#ifndef GCC_DIAGNOSTIC_H
+#define GCC_DIAGNOSTIC_H
+
+#include "pretty-print.h"
+#include "diagnostic-core.h"
+
+/* A diagnostic is described by the MESSAGE to send, the FILE and LINE of
+   its context and its KIND (ice, error, warning, note, ...)  See complete
+   list in diagnostic.def.  */
+struct diagnostic_info
+{
+  text_info message;
+  location_t location;
+  unsigned int override_column;
+  /* Auxiliary data for client.  */
+  void *x_data;
+  /* The kind of diagnostic it is about.  */
+  diagnostic_t kind;
+  /* Which OPT_* directly controls this diagnostic.  */
+  int option_index;
+};
+
+/* Each time a diagnostic's classification is changed with a pragma,
+   we record the change and the location of the change in an array of
+   these structs.  */
+struct diagnostic_classification_change_t
+{
+  location_t location;
+  int option;
+  diagnostic_t kind;
+};
+
+/*  Forward declarations.  */
+typedef void (*diagnostic_starter_fn) (diagnostic_context *,
+				       diagnostic_info *);
+typedef diagnostic_starter_fn diagnostic_finalizer_fn;
+
+/* This data structure bundles altogether any information relevant to
+   the context of a diagnostic message.  */
+struct diagnostic_context
+{
+  /* Where most of the diagnostic formatting work is done.  */
+  pretty_printer *printer;
+
+  /* The number of times we have issued diagnostics.  */
+  int diagnostic_count[DK_LAST_DIAGNOSTIC_KIND];
+
+  /* True if we should display the "warnings are being tread as error"
+     message, usually displayed once per compiler run.  */
+  bool some_warnings_are_errors;
+
+  /* True if it has been requested that warnings be treated as errors.  */
+  bool warning_as_error_requested;
+
+  /* The number of option indexes that can be passed to warning() et
+     al.  */
+  int n_opts;
+
+  /* For each option index that can be passed to warning() et al
+     (OPT_* from options.h when using this code with the core GCC
+     options), this array may contain a new kind that the diagnostic
+     should be changed to before reporting, or DK_UNSPECIFIED to leave
+     it as the reported kind, or DK_IGNORED to not report it at
+     all.  */
+  diagnostic_t *classify_diagnostic;
+
+  /* History of all changes to the classifications above.  This list
+     is stored in location-order, so we can search it, either
+     binary-wise or end-to-front, to find the most recent
+     classification for a given diagnostic, given the location of the
+     diagnostic.  */
+  diagnostic_classification_change_t *classification_history;
+
+  /* The size of the above array.  */
+  int n_classification_history;
+
+  /* For pragma push/pop.  */
+  int *push_list;
+  int n_push;
+
+  /* True if we should print the source line with a caret indicating
+     the location.  */
+  bool show_caret;
+
+  /* Maximum width of the source line printed.  */
+  int caret_max_width;
+
+  /* True if we should print the command line option which controls
+     each diagnostic, if known.  */
+  bool show_option_requested;
+
+  /* True if we should raise a SIGABRT on errors.  */
+  bool abort_on_error;
+
+  /* True if we should show the column number on diagnostics.  */
+  bool show_column;
+
+  /* True if pedwarns are errors.  */
+  bool pedantic_errors;
+
+  /* True if permerrors are warnings.  */
+  bool permissive;
+
+  /* The index of the option to associate with turning permerrors into
+     warnings.  */
+  int opt_permissive;
+
+  /* True if errors are fatal.  */
+  bool fatal_errors;
+
+  /* True if all warnings should be disabled.  */
+  bool dc_inhibit_warnings;
+
+  /* True if warnings should be given in system headers.  */
+  bool dc_warn_system_headers;
+
+  /* Maximum number of errors to report.  */
+  unsigned int max_errors;
+
+  /* This function is called before any message is printed out.  It is
+     responsible for preparing message prefix and such.  For example, it
+     might say:
+     In file included from "/usr/local/include/curses.h:5:
+                      from "/home/gdr/src/nifty_printer.h:56:
+                      ...
+  */
+  diagnostic_starter_fn begin_diagnostic;
+
+  /* This function is called after the diagnostic message is printed.  */
+  diagnostic_finalizer_fn end_diagnostic;
+
+  /* Client hook to report an internal error.  */
+  void (*internal_error) (diagnostic_context *, const char *, va_list *);
+
+  /* Client hook to say whether the option controlling a diagnostic is
+     enabled.  Returns nonzero if enabled, zero if disabled.  */
+  int (*option_enabled) (int, void *);
+
+  /* Client information to pass as second argument to
+     option_enabled.  */
+  void *option_state;
+
+  /* Client hook to return the name of an option that controls a
+     diagnostic.  Returns malloced memory.  The first diagnostic_t
+     argument is the kind of diagnostic before any reclassification
+     (of warnings as errors, etc.); the second is the kind after any
+     reclassification.  May return NULL if no name is to be printed.
+     May be passed 0 as well as the index of a particular option.  */
+  char *(*option_name) (diagnostic_context *, int, diagnostic_t, diagnostic_t);
+
+  /* Auxiliary data for client.  */
+  void *x_data;
+
+  /* Used to detect that the last caret was printed at the same location.  */
+  location_t last_location;
+
+  /* Used to detect when the input file stack has changed since last
+     described.  */
+  const struct line_map *last_module;
+
+  int lock;
+
+  bool inhibit_notes_p;
+};
+
+static inline void
+diagnostic_inhibit_notes (diagnostic_context * context)
+{
+  context->inhibit_notes_p = true;
+}
+
+
+/* Client supplied function to announce a diagnostic.  */
+#define diagnostic_starter(DC) (DC)->begin_diagnostic
+
+/* Client supplied function called after a diagnostic message is
+   displayed.  */
+#define diagnostic_finalizer(DC) (DC)->end_diagnostic
+
+/* Extension hooks for client.  */
+#define diagnostic_context_auxiliary_data(DC) (DC)->x_data
+#define diagnostic_info_auxiliary_data(DI) (DI)->x_data
+
+/* Same as pp_format_decoder.  Works on 'diagnostic_context *'.  */
+#define diagnostic_format_decoder(DC) ((DC)->printer->format_decoder)
+
+/* Same as output_prefixing_rule.  Works on 'diagnostic_context *'.  */
+#define diagnostic_prefixing_rule(DC) ((DC)->printer->wrapping.rule)
+
+/* Maximum characters per line in automatic line wrapping mode.
+   Zero means don't wrap lines.  */
+#define diagnostic_line_cutoff(DC) ((DC)->printer->wrapping.line_cutoff)
+
+#define diagnostic_flush_buffer(DC) pp_flush ((DC)->printer)
+
+/* True if the last module or file in which a diagnostic was reported is
+   different from the current one.  */
+#define diagnostic_last_module_changed(DC, MAP)	\
+  ((DC)->last_module != MAP)
+
+/* Remember the current module or file as being the last one in which we
+   report a diagnostic.  */
+#define diagnostic_set_last_module(DC, MAP)	\
+  (DC)->last_module = MAP
+
+/* Raise SIGABRT on any diagnostic of severity DK_ERROR or higher.  */
+#define diagnostic_abort_on_error(DC) \
+  (DC)->abort_on_error = true
+
+/* This diagnostic_context is used by front-ends that directly output
+   diagnostic messages without going through `error', `warning',
+   and similar functions.  */
+extern diagnostic_context *global_dc;
+
+/* The total count of a KIND of diagnostics emitted so far.  */
+#define diagnostic_kind_count(DC, DK) (DC)->diagnostic_count[(int) (DK)]
+
+/* The number of errors that have been issued so far.  Ideally, these
+   would take a diagnostic_context as an argument.  */
+#define errorcount diagnostic_kind_count (global_dc, DK_ERROR)
+/* Similarly, but for warnings.  */
+#define warningcount diagnostic_kind_count (global_dc, DK_WARNING)
+/* Similarly, but for warnings promoted to errors.  */
+#define werrorcount diagnostic_kind_count (global_dc, DK_WERROR)
+/* Similarly, but for sorrys.  */
+#define sorrycount diagnostic_kind_count (global_dc, DK_SORRY)
+
+/* Returns nonzero if warnings should be emitted.  */
+#define diagnostic_report_warnings_p(DC, LOC)				\
+  (!(DC)->dc_inhibit_warnings						\
+   && !(in_system_header_at (LOC) && !(DC)->dc_warn_system_headers))
+
+#define report_diagnostic(D) diagnostic_report_diagnostic (global_dc, D)
+
+/* Override the column number to be used for reporting a
+   diagnostic.  */
+#define diagnostic_override_column(DI, COL) (DI)->override_column = (COL)
+
+/* Override the option index to be used for reporting a
+   diagnostic.  */
+#define diagnostic_override_option_index(DI, OPTIDX) \
+    ((DI)->option_index = (OPTIDX))
+
+/* Diagnostic related functions.  */
+extern void diagnostic_initialize (diagnostic_context *, int);
+extern void diagnostic_finish (diagnostic_context *);
+extern void diagnostic_report_current_module (diagnostic_context *, location_t);
+extern void diagnostic_show_locus (diagnostic_context *, const diagnostic_info *);
+
+/* Force diagnostics controlled by OPTIDX to be kind KIND.  */
+extern diagnostic_t diagnostic_classify_diagnostic (diagnostic_context *,
+						    int /* optidx */,
+						    diagnostic_t /* kind */,
+						    location_t);
+extern void diagnostic_push_diagnostics (diagnostic_context *, location_t);
+extern void diagnostic_pop_diagnostics (diagnostic_context *, location_t);
+extern bool diagnostic_report_diagnostic (diagnostic_context *,
+					  diagnostic_info *);
+#ifdef ATTRIBUTE_GCC_DIAG
+extern void diagnostic_set_info (diagnostic_info *, const char *, va_list *,
+				 location_t, diagnostic_t) ATTRIBUTE_GCC_DIAG(2,0);
+extern void diagnostic_set_info_translated (diagnostic_info *, const char *,
+					    va_list *, location_t,
+					    diagnostic_t)
+     ATTRIBUTE_GCC_DIAG(2,0);
+extern void diagnostic_append_note (diagnostic_context *, location_t,
+                                    const char *, ...) ATTRIBUTE_GCC_DIAG(3,4);
+#endif
+extern char *diagnostic_build_prefix (diagnostic_context *, const diagnostic_info *);
+void default_diagnostic_starter (diagnostic_context *, diagnostic_info *);
+void default_diagnostic_finalizer (diagnostic_context *, diagnostic_info *);
+void diagnostic_set_caret_max_width (diagnostic_context *context, int value);
+
+void diagnostic_file_cache_fini (void);
+
+/* Pure text formatting support functions.  */
+extern char *file_name_as_prefix (diagnostic_context *, const char *);
+
+#endif /* ! GCC_DIAGNOSTIC_H */