/* Various declarations for language-independent diagnostics subroutines.
- Copyright (C) 2000 Free Software Foundation, Inc.
+ Copyright (C) 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 GNU CC.
+This file is part of GCC.
-GNU CC 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 version.
+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.
-GNU CC 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.
+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 GNU CC; 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/>. */
-#ifndef __GCC_DIAGNOSTIC_H__
-#define __GCC_DIAGNOSTIC_H__
+#ifndef GCC_DIAGNOSTIC_H
+#define GCC_DIAGNOSTIC_H
-#include "obstack.h"
+#include "pretty-print.h"
+#include "diagnostic-core.h"
-/* Forward declarations. */
-typedef struct output_buffer output_buffer;
-typedef struct diagnostic_context diagnostic_context;
-
-#define DIAGNOSTICS_SHOW_PREFIX_ONCE 0x0
-#define DIAGNOSTICS_SHOW_PREFIX_NEVER 0x1
-#define DIAGNOSTICS_SHOW_PREFIX_EVERY_LINE 0x2
-
-/* The type of front-end specific hook that formats trees into an
- output_buffer. A language specific printer returns a truth value if
- everything goes well. */
-typedef int (*printer_fn) PARAMS ((output_buffer *));
-
-/* This data structure encapulates an output_buffer's state. */
-typedef struct
+/* 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. */
+typedef struct diagnostic_info
{
- /* The prefix for each new line. */
- const char *prefix;
- /* The real upper bound of number of characters per line, taking into
- accompt the case of a very very looong prefix. */
- int maximum_length;
- /* The ideal upper bound of number of characters per line, as suggested
- by front-end. */
- int ideal_maximum_length;
- /* Nonzero if current PREFIX was emitted at least once. */
- int emitted_prefix_p;
- /* Tells how often current PREFIX should be emitted:
- o DIAGNOSTICS_SHOW_PREFIX_NEVER: never - not yet supported;
- o DIAGNOSTICS_SHOW_PREFIX_ONCE: emit current PREFIX only once;
- o DIAGNOSTICS_SHOW_PREFIX_EVERY_LINE: emit current PREFIX each time
- a physical line is started. */
- int prefixing_rule;
- /* The current char to output. Updated by front-end (*format_map) when
- it is called to report front-end printer for a specified format. */
- const char *cursor;
- /* A pointer to the variable argument-list for formatting. */
- va_list *format_args;
-} output_state;
-
-/* The output buffer datatype. This is best seen as an abstract datatype. */
-struct output_buffer
+ 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;
+} diagnostic_info;
+
+/* 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. */
+typedef struct diagnostic_classification_change_t
{
- /* Internal data. These fields should not be accessed directly by
- front-ends. */
-
- /* The obstack where the text is built up. */
- struct obstack obstack;
- /* The amount of characters output so far. */
- int line_length;
- /* The current state of the buffer. */
- output_state state;
-};
+ location_t location;
+ int option;
+ diagnostic_t kind;
+} diagnostic_classification_change_t;
-#define output_buffer_text_cursor(BUFFER) (BUFFER)->state.cursor
-#define output_buffer_format_args(BUFFER) *((BUFFER)->state.format_args)
+/* 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 relevent to
+/* This data structure bundles altogether any information relevant to
the context of a diagnostic message. */
struct diagnostic_context
{
- /* The diagnostic message to output. */
- const char *message;
+ /* 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;
- /* A pointer to a variable list of the arguments necessary for the
- purpose of message formatting. */
- va_list *args_ptr;
+ /* 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;
- /* The name of the source file involved in the diiagnostic. */
- const char *file;
+ /* 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 line-location in the source file. */
- int line;
+ /* The size of the above array. */
+ int n_classification_history;
- /* Is it message a warning? */
- int warn;
+ /* For pragma push/pop. */
+ int *push_list;
+ int n_push;
+
+ /* 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
- respondible for preparing message prefix and such. For example, it
+ 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:
...
*/
- void (*begin_diagnostic) PARAMS ((output_buffer *, diagnostic_context *));
+ 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 *);
- /* This function is called after the diagnostic message is printed. */
- void (*end_diagnostic) PARAMS ((output_buffer *, diagnostic_context *));
+ /* Client hook to say whether the option controlling a diagnostic is
+ enabled. Returns nonzero if enabled, zero if disabled. */
+ int (*option_enabled) (int, void *);
- /* Hook for front-end extensions. */
+ /* 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 when the input file stack has changed since last
+ described. */
+ const struct line_map *last_module;
+
+ int lock;
+
+ bool inhibit_notes_p;
};
-#define diagnostic_message(DC) (DC)->message
-#define diagnostic_argument_list(DC) (DC)->args_ptr
-#define diagnostic_file_location(DC) (DC)->file
-#define diagnostic_line_location(DC) (DC)->line
-#define diagnostic_is_warning(DC) (DC)->warn
+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
-#define diagnostic_auxiliary_data(DC) (DC)->x_data
-/* If non-NULL, this function formats data in the BUFFER. When called,
- output_buffer_text_cursor (BUFFER) points to a format code. LANG_PRINTER
- should call output_add_string (and related functions) to add data to
- the BUFFER. LANG_PRINTER can read arguments from
- output_buffer_format_args (BUFFER) using VA_ARG. If the BUFFER needs
- additional characters from the format string, it should advance
- the output_buffer_text_cursor (BUFFER) as it goes. When LANG_PRINTER
- returns, output_buffer_text_cursor (BUFFER) should point to the last
- character processed. */
+/* 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)
-extern printer_fn lang_printer;
+#define diagnostic_flush_buffer(DC) pp_base_flush ((DC)->printer)
-extern int diagnostic_message_length_per_line;
+/* 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)
-/* This output buffer is used by front-ends that directly output
+/* 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 simillar functions. In general, such usage should be
- avoided. This global buffer will go away, once all such usage
- has been removed. */
-extern output_buffer *diagnostic_buffer;
-
-/* Prototypes */
-void set_diagnostic_context PARAMS ((diagnostic_context *, const char *,
- va_list *, const char *, int, int));
-void set_fatal_function PARAMS ((void (*) PARAMS ((const char *,
- va_list *))));
-void report_diagnostic PARAMS ((diagnostic_context *));
-void initialize_diagnostics PARAMS ((void));
-void reshape_diagnostic_buffer PARAMS ((void));
-void default_initialize_buffer PARAMS ((output_buffer *));
-void init_output_buffer PARAMS ((output_buffer *, const char *, int));
-void output_clear PARAMS ((output_buffer *));
-const char *output_get_prefix PARAMS ((const output_buffer *));
-void output_set_prefix PARAMS ((output_buffer *, const char *));
-void output_destroy_prefix PARAMS ((output_buffer *));
-void output_set_maximum_length PARAMS ((output_buffer *, int));
-void output_emit_prefix PARAMS ((output_buffer *));
-void output_add_newline PARAMS ((output_buffer *));
-void output_add_space PARAMS ((output_buffer *));
-int output_space_left PARAMS ((const output_buffer *));
-void output_append PARAMS ((output_buffer *, const char *,
- const char *));
-void output_add_character PARAMS ((output_buffer *, int));
-void output_decimal PARAMS ((output_buffer *, int));
-void output_add_string PARAMS ((output_buffer *, const char *));
-const char *output_finish PARAMS ((output_buffer *));
-void output_printf PARAMS ((output_buffer *, const char *,
- ...)) ATTRIBUTE_PRINTF_2;
-int output_is_line_wrapping PARAMS ((output_buffer *));
-void set_message_prefixing_rule PARAMS ((int));
-void output_verbatim PARAMS ((output_buffer *, const char *, ...))
- ATTRIBUTE_PRINTF_2;
-void verbatim PARAMS ((const char *, ...)) ATTRIBUTE_PRINTF_1;
-
-#endif /* __GCC_DIAGNOSTIC_H__ */
+ 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 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);
+
+/* 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);
+#endif
+extern char *diagnostic_build_prefix (diagnostic_context *, diagnostic_info *);
+void default_diagnostic_starter (diagnostic_context *, diagnostic_info *);
+void default_diagnostic_finalizer (diagnostic_context *, diagnostic_info *);
+
+/* Pure text formatting support functions. */
+extern char *file_name_as_prefix (const char *);
+
+#endif /* ! GCC_DIAGNOSTIC_H */
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