--- a/gcc/plugin.h	Sun Aug 21 07:07:55 2011 +0900
+++ b/gcc/plugin.h	Fri Oct 27 22:46:09 2017 +0900
@@ -1,5 +1,5 @@
 /* Header file for internal GCC plugin mechanism.
-   Copyright (C) 2009, 2010 Free Software Foundation, Inc.
+   Copyright (C) 2009-2017 Free Software Foundation, Inc.
 
 This file is part of GCC.
 
@@ -20,9 +20,144 @@
 #ifndef PLUGIN_H
 #define PLUGIN_H
 
-#include "gcc-plugin.h"
+#include "highlev-plugin-common.h"
+
+/* Event names.  */
+enum plugin_event
+{
+# define DEFEVENT(NAME) NAME,
+# include "plugin.def"
+# undef DEFEVENT
+  PLUGIN_EVENT_FIRST_DYNAMIC
+};
+
+/* All globals declared here have C linkage to reduce link compatibility
+   issues with implementation language choice and mangling.  */
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern const char **plugin_event_name;
+
+struct plugin_argument
+{
+  char *key;    /* key of the argument.  */
+  char *value;  /* value is optional and can be NULL.  */
+};
+
+/* Additional information about the plugin. Used by --help and --version. */
+
+struct plugin_info
+{
+  const char *version;
+  const char *help;
+};
+
+/* Represents the gcc version. Used to avoid using an incompatible plugin. */
+
+struct plugin_gcc_version
+{
+  const char *basever;
+  const char *datestamp;
+  const char *devphase;
+  const char *revision;
+  const char *configuration_arguments;
+};
+
+/* Object that keeps track of the plugin name and its arguments. */
+struct plugin_name_args
+{
+  char *base_name;              /* Short name of the plugin (filename without
+                                   .so suffix). */
+  const char *full_name;        /* Path to the plugin as specified with
+                                   -fplugin=. */
+  int argc;                     /* Number of arguments specified with
+                                   -fplugin-arg-... */
+  struct plugin_argument *argv; /* Array of ARGC key-value pairs. */
+  const char *version;          /* Version string provided by plugin. */
+  const char *help;             /* Help string provided by plugin. */
+};
+
+/* The default version check. Compares every field in VERSION. */
+
+extern bool plugin_default_version_check (struct plugin_gcc_version *,
+					  struct plugin_gcc_version *);
+
+/* Function type for the plugin initialization routine. Each plugin module
+   should define this as an externally-visible function with name
+   "plugin_init."
+
+   PLUGIN_INFO - plugin invocation information.
+   VERSION     - the plugin_gcc_version symbol of GCC.
+
+   Returns 0 if initialization finishes successfully.  */
+
+typedef int (*plugin_init_func) (struct plugin_name_args *plugin_info,
+                                 struct plugin_gcc_version *version);
+
+/* Declaration for "plugin_init" function so that it doesn't need to be
+   duplicated in every plugin.  */
+extern int plugin_init (struct plugin_name_args *plugin_info,
+                        struct plugin_gcc_version *version);
+
+/* Function type for a plugin callback routine.
+
+   GCC_DATA  - event-specific data provided by GCC
+   USER_DATA - plugin-specific data provided by the plugin  */
+
+typedef void (*plugin_callback_func) (void *gcc_data, void *user_data);
+
+/* Called from the plugin's initialization code. Register a single callback.
+   This function can be called multiple times.
+
+   PLUGIN_NAME - display name for this plugin
+   EVENT       - which event the callback is for
+   CALLBACK    - the callback to be called at the event
+   USER_DATA   - plugin-provided data.
+*/
+
+/* Number of event ids / names registered so far.  */
+
+extern int get_event_last (void);
+
+int get_named_event_id (const char *name, enum insert_option insert);
+
+/* This is also called without a callback routine for the
+   PLUGIN_PASS_MANAGER_SETUP, PLUGIN_INFO and PLUGIN_REGISTER_GGC_ROOTS
+   pseudo-events, with a specific user_data.
+  */
+
+extern void register_callback (const char *plugin_name,
+			       int event,
+                               plugin_callback_func callback,
+                               void *user_data);
+
+extern int unregister_callback (const char *plugin_name, int event);
+
+
+/* Retrieve the plugin directory name, as returned by the
+   -fprint-file-name=plugin argument to the gcc program, which is the
+   -iplugindir program argument to cc1.  */
+extern const char* default_plugin_dir_name (void);
+
+#ifdef __cplusplus
+}
+#endif
+
+/* In case the C++ compiler does name mangling for globals, declare
+   plugin_is_GPL_compatible extern "C" so that a later definition
+   in a plugin file will have this linkage.  */
+#ifdef __cplusplus
+extern "C" {
+#endif
+extern int plugin_is_GPL_compatible;
+#ifdef __cplusplus
+}
+#endif
+
 
 struct attribute_spec;
+struct scoped_attributes;
 
 extern void add_new_plugin (const char *);
 extern void parse_plugin_arg_opt (const char *);
@@ -32,8 +167,6 @@
 extern void dump_active_plugins (FILE *);
 extern void debug_active_plugins (void);
 extern void warn_if_plugins (void);
-extern void plugins_internal_error_function (diagnostic_context *,
-					     const char *, va_list *);
 extern void print_plugins_versions (FILE *file, const char *indent);
 extern void print_plugins_help (FILE *file, const char *indent);
 extern void finalize_plugins (void);
@@ -64,5 +197,7 @@
 /* In attribs.c.  */
 
 extern void register_attribute (const struct attribute_spec *attr);
+extern struct scoped_attributes* register_scoped_attributes (const struct attribute_spec *,
+							     const char *);
 
 #endif /* PLUGIN_H */