32 lines
994 B
C
32 lines
994 B
C
|
/*
|
||
|
* Copyright (c) 2006-2022, RT-Thread Development Team
|
||
|
*
|
||
|
* SPDX-License-Identifier: Apache-2.0
|
||
|
*
|
||
|
* Change Logs:
|
||
|
* Date Author Notes
|
||
|
* 2022-11-10 RT-Thread The first version
|
||
|
*/
|
||
|
#ifndef __SYSCALL_DATA_H__
|
||
|
#define __SYSCALL_DATA_H__
|
||
|
|
||
|
#include <rtthread.h>
|
||
|
|
||
|
/**
|
||
|
* @brief signature for syscall, used to locate syscall metadata.
|
||
|
*
|
||
|
* We don't allocate an exclusive section in ELF like Linux do
|
||
|
* to avoid initializing necessary data by iterating that section,
|
||
|
* which increases system booting time. We signature a pointer
|
||
|
* just below each syscall entry in syscall table to make it
|
||
|
* easy to locate every syscall's metadata by using syscall id.
|
||
|
*
|
||
|
* TODO Currently this adds a dummy pointer to syscall name.
|
||
|
* After adding metadata of every syscalls in front of their definition,
|
||
|
* this should be replaced by a pointer to that structure
|
||
|
*/
|
||
|
#define SYSCALL_SIGN(func) \
|
||
|
(void *)func, \
|
||
|
RT_STRINGIFY(func)
|
||
|
|
||
|
#endif /* __SYSCALL_DATA_H__ */
|