85138855f0
On ARM, GPRs are often known by two names. E.g. the stack pointer is both 'sp' and 'r13', the first parameter to a function 'a1' and 'r0', etc. This macro allows defining them in a data structure, e.g. in the ESF, without having to create a union, use the correct type, etc: it is less error-prone and makes for shorter code. sys_define_gpr_with_alias(name1, name2) Change-Id: Ie4a6caa1ac23f26be4f7f0e05e9265f2655062cc Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
61 lines
1.7 KiB
C
61 lines
1.7 KiB
C
/*
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* Copyright (c) 2013-2014 Wind River Systems, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* 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,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/**
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* @file
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* @brief ARM specific nanokernel interface header
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*
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* This header contains the ARM specific nanokernel interface. It is
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* included by the nanokernel interface architecture-abstraction header
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* (nanokernel/cpu.h)
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*/
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#ifndef _ARM_ARCH__H_
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#define _ARM_ARCH__H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* ARM GPRs are often designated by two different names */
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#define sys_define_gpr_with_alias(name1, name2) union { uint32_t name1, name2; }
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/* APIs need to support non-byte addressable architectures */
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#define OCTET_TO_SIZEOFUNIT(X) (X)
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#define SIZEOFUNIT_TO_OCTET(X) (X)
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#ifdef CONFIG_CPU_CORTEX_M
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#include <arch/arm/cortex_m/exc.h>
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#include <arch/arm/cortex_m/irq.h>
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#include <arch/arm/cortex_m/error.h>
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#include <arch/arm/cortex_m/misc.h>
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#include <arch/arm/cortex_m/scs.h>
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#include <arch/arm/cortex_m/scb.h>
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#include <arch/arm/cortex_m/nvic.h>
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#include <arch/arm/cortex_m/memory_map.h>
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#include <arch/arm/cortex_m/gdb_stub.h>
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#include <arch/arm/cortex_m/asm_inline.h>
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#include <arch/arm/cortex_m/addr_types.h>
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#endif
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#define STACK_ALIGN 4
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#ifdef __cplusplus
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}
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#endif
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#endif /* _ARM_ARCH__H_ */
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