142 lines
4.2 KiB
C
142 lines
4.2 KiB
C
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/****************************************************************************
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* arch/sim/include/setjmp.h
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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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#ifndef __ARCH_SIM_INCLUDE_SETJUMP_H
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#define __ARCH_SIM_INCLUDE_SETJUMP_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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#include <nuttx/compiler.h>
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Number of registers saved in context switch */
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#if defined(CONFIG_HOST_X86_64) && !defined(CONFIG_SIM_M32)
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/* Storage order: %rbx, %rsp, %rbp, %r12, %r13, %r14, %r15, %rip */
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# define XCPTCONTEXT_REGS 8
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# define XCPTCONTEXT_SIZE (8 * XCPTCONTEXT_REGS)
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# ifdef __ASSEMBLY__
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# define JB_RBX (0*8)
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# define JB_RSP (1*8)
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# define JB_RBP (2*8)
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# define JB_R12 (3*8)
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# define JB_R13 (4*8)
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# define JB_R14 (5*8)
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# define JB_R15 (6*8)
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# define JB_RSI (7*8)
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# else
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# define JB_RBX (0)
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# define JB_RSP (1)
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# define JB_RBP (2)
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# define JB_R12 (3)
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# define JB_R13 (4)
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# define JB_R14 (5)
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# define JB_R15 (6)
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# define JB_RSI (7)
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# endif /* __ASSEMBLY__ */
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/* Compatibility definitions */
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# define JB_FP JB_RBP
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# define JB_SP JB_RSP
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# define JB_PC JB_RSI
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#elif defined(CONFIG_HOST_X86) || defined(CONFIG_SIM_M32)
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/* Storage order: %ebx, %esi, %edi, %ebp, sp, and return PC */
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# define XCPTCONTEXT_REGS 6
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# define XCPTCONTEXT_SIZE (4 * XCPTCONTEXT_REGS)
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# ifdef __ASSEMBLY__
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# define JB_EBX (0*4)
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# define JB_ESI (1*4)
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# define JB_EDI (2*4)
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# define JB_EBP (3*4)
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# define JB_SP (4*4)
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# define JB_PC (5*4)
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# else
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# define JB_EBX (0)
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# define JB_ESI (1)
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# define JB_EDI (2)
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# define JB_EBP (3)
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# define JB_SP (4)
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# define JB_PC (5)
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# endif /* __ASSEMBLY__ */
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/* Compatibility definitions */
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# define JB_FP JB_EBP
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#elif defined(CONFIG_HOST_ARM)
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# define XCPTCONTEXT_REGS 16
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# define XCPTCONTEXT_SIZE (4 * XCPTCONTEXT_REGS)
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# define JB_FP 7
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# define JB_SP 8
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# define JB_PC 9
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#endif
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/****************************************************************************
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* Public Types
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****************************************************************************/
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#ifndef __ASSEMBLY__
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typedef unsigned long xcpt_reg_t;
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typedef xcpt_reg_t jmp_buf[XCPTCONTEXT_REGS];
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#endif
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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#ifndef __ASSEMBLY__
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#ifdef __cplusplus
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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int setjmp(jmp_buf env);
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void longjmp(jmp_buf env, int val) noreturn_function;
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#undef EXTERN
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#ifdef __cplusplus
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}
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#endif
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#endif /* !__ASSEMBLY__ */
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#endif /* __ARCH_SIM_INCLUDE_SETJUMP_H */
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