100 lines
3.6 KiB
C
100 lines
3.6 KiB
C
/****************************************************************************
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* syscall/syscall_stublookup.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <sys/types.h>
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#include <syscall.h>
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/* The content of this file is only meaningful during the kernel phase of
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* a kernel build.
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*/
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#if defined(CONFIG_LIB_SYSCALL)
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#define CAT(p,f) CAT_(p, f)
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#define CAT_(p,f) p##f
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#define STUB_NAME(f) CAT(STUB_, f)
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#define STUB_PROT0(f) \
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uintptr_t STUB_NAME(f)(int nbr)
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#define STUB_PROT1(f) \
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uintptr_t STUB_NAME(f)(int nbr, uintptr_t parm1)
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#define STUB_PROT2(f) \
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uintptr_t STUB_NAME(f)(int nbr, uintptr_t parm1, uintptr_t parm2)
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#define STUB_PROT3(f) \
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uintptr_t STUB_NAME(f)(int nbr, uintptr_t parm1, uintptr_t parm2, \
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uintptr_t parm3)
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#define STUB_PROT4(f) \
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uintptr_t STUB_NAME(f)(int nbr, uintptr_t parm1, uintptr_t parm2, \
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uintptr_t parm3, uintptr_t parm4)
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#define STUB_PROT5(f) \
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uintptr_t STUB_NAME(f)(int nbr, uintptr_t parm1, uintptr_t parm2, \
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uintptr_t parm3, uintptr_t parm4, uintptr_t parm5)
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#define STUB_PROT6(f) \
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uintptr_t STUB_NAME(f)(int nbr, uintptr_t parm1, uintptr_t parm2, \
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uintptr_t parm3, uintptr_t parm4, uintptr_t parm5, \
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uintptr_t parm6)
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#define STUB_PROT(f, n) CAT(STUB_PROT, n)(f)
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/****************************************************************************
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* Stub Function Prototypes
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****************************************************************************/
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#define SYSCALL_LOOKUP1(f,n) STUB_PROT(f, n);
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#define SYSCALL_LOOKUP(f,n) STUB_PROT(f, n);
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#include <sys/syscall_lookup.h>
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#undef SYSCALL_LOOKUP1
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#undef SYSCALL_LOOKUP
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/****************************************************************************
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* Public Data
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****************************************************************************/
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/* Stub lookup tables. This table is indexed by the system call number.
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* Given the system call number, the corresponding entry in this table
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* provides the address of the stub function.
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*/
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const uintptr_t g_stublookup[SYS_nsyscalls] =
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{
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# define SYSCALL_LOOKUP1(f,n) (uintptr_t)STUB_NAME(f)
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# define SYSCALL_LOOKUP(f,n) , (uintptr_t)STUB_NAME(f)
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# include <sys/syscall_lookup.h>
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# undef SYSCALL_LOOKUP1
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# undef SYSCALL_LOOKUP
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};
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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#endif /* CONFIG_LIB_SYSCALL */
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