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/* Public header file for plugins to include.
Copyright (C) 2009 Free Software Foundation, Inc.
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_PLUGIN_H
#define GCC_PLUGIN_H
#ifndef IN_GCC
#define IN_GCC
#define IN_GCC_PLUGIN
#endif
#include "config.h"
#include "system.h"
/* Event names. Keep in sync with plugin_event_name[]. */
enum plugin_event
{
PLUGIN_PASS_MANAGER_SETUP, /* To hook into pass manager. */
PLUGIN_FINISH_TYPE, /* After finishing parsing a type. */
PLUGIN_FINISH_UNIT, /* Useful for summary processing. */
PLUGIN_CXX_CP_PRE_GENERICIZE, /* Allows to see low level AST in C++ FE. */
PLUGIN_FINISH, /* Called before GCC exits. */
PLUGIN_INFO, /* Information about the plugin. */
PLUGIN_GGC_START, /* Called at start of GCC Garbage Collection. */
PLUGIN_GGC_MARKING, /* Extend the GGC marking. */
PLUGIN_GGC_END, /* Called at end of GGC. */
PLUGIN_REGISTER_GGC_ROOTS, /* Register an extra GGC root table. */
PLUGIN_ATTRIBUTES, /* Called during attribute registration. */
PLUGIN_START_UNIT, /* Called before processing a translation unit. */
PLUGIN_EVENT_LAST /* Dummy event used for indexing callback
array. */
};
extern const char *plugin_event_name[];
struct plugin_argument
{
char *key; /* key of the argument. */
char *value; /* value is optional and can be NULL. */
};
enum pass_positioning_ops
{
PASS_POS_INSERT_AFTER, /* Insert after the reference pass. */
PASS_POS_INSERT_BEFORE, /* Insert before the reference pass. */
PASS_POS_REPLACE /* Replace the reference pass. */
};
struct plugin_pass
{
struct opt_pass *pass; /* New pass provided by the plugin. */
const char *reference_pass_name; /* Name of the reference pass for hooking
up the new pass. */
int ref_pass_instance_number; /* Insert the pass at the specified
instance number of the reference pass.
Do it for every instance if it is 0. */
enum pass_positioning_ops pos_op; /* how to insert the new pass. */
};
/* 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.
*/
/* This is also called without a callback routine for the
PLUGIN_PASS_MANAGER_SETUP, PLUGIN_INFO, PLUGIN_REGISTER_GGC_ROOTS
pseudo-events, with a specific user_data.
*/
extern void register_callback (const char *plugin_name,
enum plugin_event event,
plugin_callback_func callback,
void *user_data);
#endif /* GCC_PLUGIN_H */
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