/* Various declarations for language-independent diagnostics subroutines. Copyright (C) 2000-2013 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 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 . */ #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. */ typedef 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; } 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 { location_t location; int option; diagnostic_t kind; } diagnostic_classification_change_t; /* 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_base_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); /* Pure text formatting support functions. */ extern char *file_name_as_prefix (const char *); #endif /* ! GCC_DIAGNOSTIC_H */