1// SPDX-License-Identifier: CDDL-1.0 2/* 3 * CDDL HEADER START 4 * 5 * The contents of this file are subject to the terms of the 6 * Common Development and Distribution License (the "License"). 7 * You may not use this file except in compliance with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or https://opensource.org/licenses/CDDL-1.0. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 23/* 24 * Copyright (c) 1992, 2010, Oracle and/or its affiliates. All rights reserved. 25 */ 26 27#if defined(_KERNEL) && defined(__linux__) 28#include <linux/linkage.h> 29#endif 30 31/* 32 * Setjmp and longjmp implement non-local gotos using state vectors 33 * type label_t. 34 */ 35#ifdef __x86_64__ 36 37#define _ASM 38#include <sys/asm_linkage.h> 39 40ENTRY_ALIGN(setjmp, 8) 41 movq %rsp, 0(%rdi) 42 movq %rbp, 8(%rdi) 43 movq %rbx, 16(%rdi) 44 movq %r12, 24(%rdi) 45 movq %r13, 32(%rdi) 46 movq %r14, 40(%rdi) 47 movq %r15, 48(%rdi) 48 movq 0(%rsp), %rdx /* return address */ 49 movq %rdx, 56(%rdi) /* rip */ 50 xorl %eax, %eax /* return 0 */ 51 RET 52 SET_SIZE(setjmp) 53 54ENTRY_ALIGN(longjmp, 8) 55 movq 0(%rdi), %rsp 56 movq 8(%rdi), %rbp 57 movq 16(%rdi), %rbx 58 movq 24(%rdi), %r12 59 movq 32(%rdi), %r13 60 movq 40(%rdi), %r14 61 movq 48(%rdi), %r15 62 movq 56(%rdi), %rdx /* return address */ 63 movq %rdx, 0(%rsp) 64 xorl %eax, %eax 65 incl %eax /* return 1 */ 66 RET 67 SET_SIZE(longjmp) 68 69#ifdef __ELF__ 70.section .note.GNU-stack,"",%progbits 71#endif 72 73#endif /* __x86_64__ */ 74