2022-02-02 23:36:23 +01:00
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/****************************************************************************
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* libs/libc/machine/sim/arch_setjmp_arm64.S
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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 <arch/setjmp.h>
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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2023-07-07 11:20:04 +02:00
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#ifdef __CYGWIN__
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# define SYMBOL(s) _##s
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#elif defined(__ELF__)
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# define SYMBOL(s) s
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2022-02-02 23:36:23 +01:00
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#else
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2023-07-07 11:20:04 +02:00
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# define SYMBOL(s) _##s
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2022-02-02 23:36:23 +01:00
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#endif
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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.text
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.globl SYMBOL(setjmp)
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.align 4
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SYMBOL(setjmp):
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stp x19, x20, [x0, JB_X19_X20]
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stp x21, x22, [x0, JB_X21_X22]
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stp x23, x24, [x0, JB_X23_X24]
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stp x25, x26, [x0, JB_X25_X26]
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stp x27, x28, [x0, JB_X27_X28]
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stp x29, lr, [x0, JB_X29_XLR]
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mov x1, sp /* STP can't access SP */
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stp fp, x1, [x0, JB_XFP_XSP]
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stp d8, d9, [x0, JB_D08_D09]
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stp d10, d11, [x0, JB_D10_D11]
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stp d12, d13, [x0, JB_D12_D13]
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stp d14, d15, [x0, JB_D14_D15]
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mov x0,#0 /* return value */
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ret
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.text
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.globl SYMBOL(longjmp)
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.align 4
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SYMBOL(longjmp):
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ldp x19, x20, [x0, JB_X19_X20]
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ldp x21, x22, [x0, JB_X21_X22]
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ldp x23, x24, [x0, JB_X23_X24]
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ldp x25, x26, [x0, JB_X25_X26]
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ldp x27, x28, [x0, JB_X27_X28]
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ldp x29, lr, [x0, JB_X29_XLR]
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ldp fp, x2, [x0, JB_XFP_XSP]
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ldp d8, d9, [x0, JB_D08_D09]
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ldp d10, d11, [x0, JB_D10_D11]
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ldp d12, d13, [x0, JB_D12_D13]
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ldp d14, d15, [x0, JB_D14_D15]
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mov sp, x2 /* LDP can't access SP */
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mov x0, x1
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cmp x0, #0
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b.ne 1f /* return 1, if val is 0 */
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mov x0,#1 /* return value */
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1:
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ret
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.end
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