nuttx/include/sys/syscall.h

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/****************************************************************************
* include/sys/syscall.h
* This file contains the system call numbers.
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
#ifndef __INCLUDE_SYS_SYSCALL_H
#define __INCLUDE_SYS_SYSCALL_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#ifndef __ASSEMBLY__
# include <stdint.h>
#endif
#include <arch/syscall.h>
#ifdef CONFIG_LIB_SYSCALL
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* Note that the reported number of system calls does *NOT* include the
* architecture-specific system calls. If the "real" total is required,
* use SYS_maxsyscall.
*/
#define SYS_nsyscalls (SYS_maxsyscall - CONFIG_SYS_RESERVED)
#ifndef __ASSEMBLY__
/****************************************************************************
* Public Type Definitions
****************************************************************************/
enum
{
# define SYSCALL_LOOKUP_(f) SYS_##f
# define SYSCALL_LOOKUP1(f,n) SYSCALL_LOOKUP_(f) = CONFIG_SYS_RESERVED
# define SYSCALL_LOOKUP(f,n) , SYSCALL_LOOKUP_(f)
# include "syscall_lookup.h"
, SYS_maxsyscall
# undef SYSCALL_LOOKUP_
# undef SYSCALL_LOOKUP1
# undef SYSCALL_LOOKUP
};
/****************************************************************************
* Public Data
****************************************************************************/
#ifdef __cplusplus
#define EXTERN extern "C"
extern "C"
{
#else
#define EXTERN extern
#endif
#ifdef CONFIG_LIB_SYSCALL
/* Given the system call number, the corresponding entry in this table
* provides the address of the stub function.
*
* This table is only available during the kernel phase of a kernel build.
*/
EXTERN const uintptr_t g_stublookup[SYS_nsyscalls];
#endif
#ifdef CONFIG_SCHED_INSTRUMENTATION_SYSCALL
/* Given the system call number, the corresponding entry in this table
* provides the name of the function.
*/
EXTERN const char *g_funcnames[SYS_nsyscalls];
#endif
/****************************************************************************
* Public Function Prototypes
****************************************************************************/
#undef EXTERN
#ifdef __cplusplus
}
#endif
#endif /* __ASSEMBLY__ */
#endif /* CONFIG_LIB_SYSCALL */
#endif /* __INCLUDE_SYS_SYSCALL_H */