Add an ARMv7-A system call definition header file
This commit is contained in:
Gregory Nutt
parent
3561aac62a
commit
cbf0141d6c
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@ -51,7 +51,7 @@
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#endif
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/****************************************************************************
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* Pro-processor Definitions
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* Pre-processor Definitions
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****************************************************************************/
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/* This is the value used as the argument to the SVC instruction. It is not
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@ -51,7 +51,7 @@
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#endif
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/****************************************************************************
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* Pro-processor Definitions
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* Pre-processor Definitions
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****************************************************************************/
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/* This is the value used as the argument to the SVC instruction. It is not
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@ -52,7 +52,8 @@
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/* Configuration ********************************************************************/
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/* This logic uses three system calls {0,1,2} for context switching and one for the
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* syscall return. The first four syscall values must be reserved.
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* syscall return. So a minimum of four syscall values must be reserved. If
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* CONFIG_NUTTX_KERNEL is defined, then four more syscall values must be reserved.
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*/
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#ifdef CONFIG_LIB_SYSCALL
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@ -64,9 +65,9 @@
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# endif
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# else
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# ifndef CONFIG_SYS_RESERVED
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# error "CONFIG_SYS_RESERVED must be defined to have the value 3"
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# elif CONFIG_SYS_RESERVED != 3
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# error "CONFIG_SYS_RESERVED must have the value 3"
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# error "CONFIG_SYS_RESERVED must be defined to have the value 4"
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# elif CONFIG_SYS_RESERVED != 4
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# error "CONFIG_SYS_RESERVED must have the value 4"
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# endif
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# endif
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#endif
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@ -94,7 +95,7 @@
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#define SYS_switch_context (2)
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#ifdef CONFIG_NUTTX_KERNEL
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#ifdef CONFIG_LIB_SYSCALL
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/* SYS call 3:
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*
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* void up_syscall_return(void);
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@ -102,6 +103,7 @@
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#define SYS_syscall_return (3)
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#ifdef CONFIG_NUTTX_KERNEL
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/* SYS call 4:
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*
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* void up_task_start(main_t taskentry, int argc, FAR char *argv[])
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@ -132,7 +134,9 @@
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*/
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#define SYS_signal_handler_return (7)
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#endif
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#endif /* CONFIG_NUTTX_KERNEL */
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#endif /* CONFIG_LIB_SYSCALL */
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/************************************************************************************
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* Inline Functions
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@ -0,0 +1,123 @@
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/************************************************************************************
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* arch/arm/src/armv7-a/syscall.h
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*
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* Copyright (C) 2014 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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************************************************************************************/
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#ifndef __ARCH_ARM_SRC_COMMON_CORTEXM_SVCALL_H
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#define __ARCH_ARM_SRC_COMMON_CORTEXM_SVCALL_H
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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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#ifdef CONFIG_LIB_SYSCALL
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# include <syscall.h>
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#endif
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#ifdef CONFIG_LIB_SYSCALL
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/************************************************************************************
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* Pre-processor Definitions
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************************************************************************************/
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/* Configuration ********************************************************************/
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/* This logic uses one system call for the syscall return. So a minimum of one
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* syscall values must be reserved. If CONFIG_NUTTX_KERNEL is defined, then four
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* more syscall values must be reserved.
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*/
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#ifdef CONFIG_NUTTX_KERNEL
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# ifndef CONFIG_SYS_RESERVED
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# error "CONFIG_SYS_RESERVED must be defined to have the value 5"
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# elif CONFIG_SYS_RESERVED != 5
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# error "CONFIG_SYS_RESERVED must have the value 5"
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# endif
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#else
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# ifndef CONFIG_SYS_RESERVED
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# error "CONFIG_SYS_RESERVED must be defined to have the value 1"
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# elif CONFIG_SYS_RESERVED != 1
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# error "CONFIG_SYS_RESERVED must have the value 1"
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# endif
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#endif
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/* Cortex M3 system calls ***********************************************************/
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/* SYS call 0:
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*
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* void up_syscall_return(void);
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*/
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#define SYS_syscall_return (0)
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#ifdef CONFIG_NUTTX_KERNEL
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/* SYS call 1:
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*
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* void up_task_start(main_t taskentry, int argc, FAR char *argv[])
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* noreturn_function;
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*/
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#define SYS_task_start (1)
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/* SYS call 2:
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*
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* void up_pthread_start(pthread_startroutine_t entrypt, pthread_addr_t arg)
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* noreturn_function
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*/
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#define SYS_pthread_start (2)
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/* SYS call 3:
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*
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* void signal_handler(_sa_sigaction_t sighand, int signo, FAR siginfo_t *info,
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* FAR void *ucontext);
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*/
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#define SYS_signal_handler (3)
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/* SYS call 4:
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*
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* void signal_handler_return(void);
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*/
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#define SYS_signal_handler_return (4)
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#endif /* CONFIG_NUTTX_KERNEL */
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/************************************************************************************
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* Inline Functions
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************************************************************************************/
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#endif /* CONFIG_LIB_SYSCALL */
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#endif /* __ARCH_ARM_SRC_COMMON_CORTEXM_SVCALL_H */
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@ -52,7 +52,8 @@
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/* Configuration ********************************************************************/
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/* This logic uses three system calls {0,1,2} for context switching and one for the
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* syscall return. The first four syscall values must be reserved.
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* syscall return. So a minimum of four syscall values must be reserved. If
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* CONFIG_NUTTX_KERNEL is defined, then four more syscall values must be reserved.
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*/
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#ifdef CONFIG_LIB_SYSCALL
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@ -64,9 +65,9 @@
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# endif
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# else
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# ifndef CONFIG_SYS_RESERVED
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# error "CONFIG_SYS_RESERVED must be defined to have the value 3"
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# elif CONFIG_SYS_RESERVED != 3
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# error "CONFIG_SYS_RESERVED must have the value 3"
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# error "CONFIG_SYS_RESERVED must be defined to have the value 4"
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# elif CONFIG_SYS_RESERVED != 4
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# error "CONFIG_SYS_RESERVED must have the value 4"
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# endif
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# endif
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#endif
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@ -94,7 +95,7 @@
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#define SYS_switch_context (2)
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#ifdef CONFIG_NUTTX_KERNEL
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#ifdef CONFIG_LIB_SYSCALL
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/* SYS call 3:
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*
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* void up_syscall_return(void);
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@ -102,6 +103,7 @@
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#define SYS_syscall_return (3)
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#ifdef CONFIG_NUTTX_KERNEL
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/* SYS call 4:
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*
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* void up_task_start(main_t taskentry, int argc, FAR char *argv[])
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@ -132,7 +134,9 @@
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*/
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#define SYS_signal_handler_return (7)
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#endif
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#endif /* CONFIG_NUTTX_KERNEL */
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#endif /* CONFIG_LIB_SYSCALL */
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/************************************************************************************
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* Inline Functions
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