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// SPDX-License-Identifier: CDDL-1.0
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or https://opensource.org/licenses/CDDL-1.0.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 1992, 2010, Oracle and/or its affiliates. All rights reserved.
*/
#if defined(_KERNEL) && defined(__linux__)
#include <linux/linkage.h>
#endif
/*
* Setjmp and longjmp implement non-local gotos using state vectors
* type label_t.
*/
#ifdef __x86_64__
#define _ASM
#include <sys/asm_linkage.h>
ENTRY_ALIGN(setjmp, 8)
movq %rsp, 0(%rdi)
movq %rbp, 8(%rdi)
movq %rbx, 16(%rdi)
movq %r12, 24(%rdi)
movq %r13, 32(%rdi)
movq %r14, 40(%rdi)
movq %r15, 48(%rdi)
movq 0(%rsp), %rdx /* return address */
movq %rdx, 56(%rdi) /* rip */
xorl %eax, %eax /* return 0 */
RET
SET_SIZE(setjmp)
ENTRY_ALIGN(longjmp, 8)
movq 0(%rdi), %rsp
movq 8(%rdi), %rbp
movq 16(%rdi), %rbx
movq 24(%rdi), %r12
movq 32(%rdi), %r13
movq 40(%rdi), %r14
movq 48(%rdi), %r15
movq 56(%rdi), %rdx /* return address */
movq %rdx, 0(%rsp)
xorl %eax, %eax
incl %eax /* return 1 */
RET
SET_SIZE(longjmp)
#ifdef __ELF__
.section .note.GNU-stack,"",%progbits
#endif
#endif /* __x86_64__ */
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