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