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