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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
- #ifdef CONFIG_LIB_SYSCALL
- /****************************************************************************
- * Pre-processor Definitions
- ****************************************************************************/
- /* Reserve the first system calls for platform-specific usage if so
- * configured.
- */
- #ifndef CONFIG_SYS_RESERVED
- # define CONFIG_SYS_RESERVED (0)
- #endif
- /* 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 */
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