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- /****************************************************************************
- * syscall/syscall_stublookup.c
- *
- * 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.
- *
- ****************************************************************************/
- /****************************************************************************
- * Included Files
- ****************************************************************************/
- #include <nuttx/config.h>
- #include <sys/types.h>
- #include <syscall.h>
- /* The content of this file is only meaningful during the kernel phase of
- * a kernel build.
- */
- #if defined(CONFIG_LIB_SYSCALL)
- /****************************************************************************
- * Pre-processor Definitions
- ****************************************************************************/
- #define CAT(p,f) CAT_(p, f)
- #define CAT_(p,f) p##f
- #define STUB_NAME(f) CAT(STUB_, f)
- #define STUB_PROT0(f) \
- uintptr_t STUB_NAME(f)(int nbr)
- #define STUB_PROT1(f) \
- uintptr_t STUB_NAME(f)(int nbr, uintptr_t parm1)
- #define STUB_PROT2(f) \
- uintptr_t STUB_NAME(f)(int nbr, uintptr_t parm1, uintptr_t parm2)
- #define STUB_PROT3(f) \
- uintptr_t STUB_NAME(f)(int nbr, uintptr_t parm1, uintptr_t parm2, \
- uintptr_t parm3)
- #define STUB_PROT4(f) \
- uintptr_t STUB_NAME(f)(int nbr, uintptr_t parm1, uintptr_t parm2, \
- uintptr_t parm3, uintptr_t parm4)
- #define STUB_PROT5(f) \
- uintptr_t STUB_NAME(f)(int nbr, uintptr_t parm1, uintptr_t parm2, \
- uintptr_t parm3, uintptr_t parm4, uintptr_t parm5)
- #define STUB_PROT6(f) \
- uintptr_t STUB_NAME(f)(int nbr, uintptr_t parm1, uintptr_t parm2, \
- uintptr_t parm3, uintptr_t parm4, uintptr_t parm5, \
- uintptr_t parm6)
- #define STUB_PROT(f, n) CAT(STUB_PROT, n)(f)
- /****************************************************************************
- * Stub Function Prototypes
- ****************************************************************************/
- #define SYSCALL_LOOKUP1(f,n) STUB_PROT(f, n);
- #define SYSCALL_LOOKUP(f,n) STUB_PROT(f, n);
- #include <sys/syscall_lookup.h>
- #undef SYSCALL_LOOKUP1
- #undef SYSCALL_LOOKUP
- /****************************************************************************
- * Public Data
- ****************************************************************************/
- /* Stub lookup tables. This table is indexed by the system call number.
- * Given the system call number, the corresponding entry in this table
- * provides the address of the stub function.
- */
- const uintptr_t g_stublookup[SYS_nsyscalls] =
- {
- # define SYSCALL_LOOKUP1(f,n) (uintptr_t)STUB_NAME(f)
- # define SYSCALL_LOOKUP(f,n) , (uintptr_t)STUB_NAME(f)
- # include <sys/syscall_lookup.h>
- # undef SYSCALL_LOOKUP1
- # undef SYSCALL_LOOKUP
- };
- /****************************************************************************
- * Public Functions
- ****************************************************************************/
- #endif /* CONFIG_LIB_SYSCALL */
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