Archipelago » qemu

/*

 * QEMU Module Infrastructure

 *

 * Copyright IBM, Corp. 2009

 *

 * Authors:

 *  Anthony Liguori   <aliguori@us.ibm.com>

 *

 * This work is licensed under the terms of the GNU GPL, version 2.  See

 * the COPYING file in the top-level directory.

 *

 */

#ifndef QEMU_MODULE_H

#define QEMU_MODULE_H

#include "qemu/osdep.h"

#define DSO_STAMP_FUN         glue(qemu_stamp, CONFIG_STAMP)

#define DSO_STAMP_FUN_STR     stringify(DSO_STAMP_FUN)

#ifdef BUILD_DSO

void DSO_STAMP_FUN(void);

/* This is a dummy symbol to identify a loaded DSO as a QEMU module, so we can

 * distinguish "version mismatch" from "not a QEMU module", when the stamp

 * check fails during module loading */

void qemu_module_dummy(void);

#define module_init(function, type)                                         \

static void __attribute__((constructor)) do_qemu_init_ ## function(void)    \

{                                                                           \

    register_dso_module_init(function, type);                               \

}

#else

/* This should not be used directly.  Use block_init etc. instead.  */

#define module_init(function, type)                                         \

static void __attribute__((constructor)) do_qemu_init_ ## function(void)    \

{                                                                           \

    register_module_init(function, type);                                   \

}

#endif

typedef enum {

    MODULE_INIT_BLOCK,

    MODULE_INIT_MACHINE,

    MODULE_INIT_QAPI,

    MODULE_INIT_QOM,

    MODULE_INIT_MAX

} module_init_type;

#define block_init(function) module_init(function, MODULE_INIT_BLOCK)

#define machine_init(function) module_init(function, MODULE_INIT_MACHINE)

#define qapi_init(function) module_init(function, MODULE_INIT_QAPI)

#define type_init(function) module_init(function, MODULE_INIT_QOM)

void register_module_init(void (*fn)(void), module_init_type type);

void register_dso_module_init(void (*fn)(void), module_init_type type);

void module_call_init(module_init_type type);

#endif