contrib/gcc-5.0/gcc/plugin.h

   1 /* Header file for internal GCC plugin mechanism.
   2    Copyright (C) 2009-2015 Free Software Foundation, Inc.
   3
   4 This file is part of GCC.
   5
   6 GCC is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 3, or (at your option)
   9 any later version.
  10
  11 GCC is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GCC; see the file COPYING3.  If not see
  18 <http://www.gnu.org/licenses/>.  */
  19
  20 #ifndef PLUGIN_H
  21 #define PLUGIN_H
  22
  23 #include "gcc-plugin.h"
  24
  25 struct attribute_spec;
  26 struct scoped_attributes;
  27
  28 extern void add_new_plugin (const char *);
  29 extern void parse_plugin_arg_opt (const char *);
  30 extern int invoke_plugin_callbacks_full (int, void *);
  31 extern void initialize_plugins (void);
  32 extern bool plugins_active_p (void);
  33 extern void dump_active_plugins (FILE *);
  34 extern void debug_active_plugins (void);
  35 extern void warn_if_plugins (void);
  36 extern void plugins_internal_error_function (diagnostic_context *,
  37                                              const char *, va_list *);
  38 extern void print_plugins_versions (FILE *file, const char *indent);
  39 extern void print_plugins_help (FILE *file, const char *indent);
  40 extern void finalize_plugins (void);
  41
  42 extern bool flag_plugin_added;
  43
  44 /* Called from inside GCC.  Invoke all plugin callbacks registered with
  45    the specified event.
  46    Return PLUGEVT_SUCCESS if at least one callback was called,
  47    PLUGEVT_NO_CALLBACK if there was no callback.
  48
  49    EVENT    - the event identifier
  50    GCC_DATA - event-specific data provided by the compiler  */
  51
  52 static inline int
  53 invoke_plugin_callbacks (int event ATTRIBUTE_UNUSED,
  54                          void *gcc_data ATTRIBUTE_UNUSED)
  55 {
  56 #ifdef ENABLE_PLUGIN
  57   /* True iff at least one plugin has been added.  */
  58   if (flag_plugin_added)
  59     return invoke_plugin_callbacks_full (event, gcc_data);
  60 #endif
  61
  62   return PLUGEVT_NO_CALLBACK;
  63 }
  64
  65 /* In attribs.c.  */
  66
  67 extern void register_attribute (const struct attribute_spec *attr);
  68 extern struct scoped_attributes* register_scoped_attributes (const struct attribute_spec *,
  69                                                              const char *);
  70
  71 #endif /* PLUGIN_H */