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, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 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 * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 /* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */ 28 /* All Rights Reserved */ 29 30 /* 31 * University Copyright- Copyright (c) 1982, 1986, 1988 32 * The Regents of the University of California 33 * All Rights Reserved 34 * 35 * University Acknowledgment- Portions of this document are derived from 36 * software developed by the University of California, Berkeley, and its 37 * contributors. 38 */ 39 40 /* 41 * 4.3BSD setjmp compatibility header 42 * 43 * 4.3BSD setjmp/longjmp is equivalent to SVR4 sigsetjmp/siglongjmp - 44 * 4.3BSD _setjmp/_longjmp is equivalent to SVR4 setjmp/longjmp 45 */ 46 47 #ifndef _SETJMP_H 48 #define _SETJMP_H 49 50 #include <sys/types.h> 51 #include <sys/signal.h> 52 #include <sys/ucontext.h> 53 54 #ifdef __cplusplus 55 extern "C" { 56 #endif 57 58 /* 59 * The sizes of the jump-buffer (_JBLEN) and the sigjump-buffer 60 * (_SIGJBLEN) are defined by the appropriate, processor specific, ABI. 61 */ 62 #if defined(__amd64) 63 #define _JBLEN 128 /* must be the same as _SIGJBLEN for libucb */ 64 #define _SIGJBLEN 128 /* ABI value */ 65 #elif defined(__i386) 66 #define _JBLEN 128 /* must be the same as _SIGJBLEN for libucb */ 67 #define _SIGJBLEN 128 /* ABI value */ 68 #elif defined(__sparcv9) 69 #define _JBLEN 19 /* ABI value */ 70 #define _SIGJBLEN 19 /* ABI value */ 71 #elif defined(__sparc) 72 #define _JBLEN 19 /* _SIGJBLEN */ 73 #define _SIGJBLEN 19 /* ABI value */ 74 #else 75 #error "ISA not supported" 76 #endif 77 78 #if defined(__i386) || defined(__amd64) || \ 79 defined(__sparc) || defined(__sparcv9) 80 81 #if !defined(_LP64) && defined(__cplusplus) 82 typedef int jmp_buf[_JBLEN]; 83 #else 84 typedef long jmp_buf[_JBLEN]; 85 #endif 86 87 #else 88 #error "ISA not supported" 89 #endif 90 91 #if defined(__i386) || defined(__amd64) || \ 92 defined(__sparc) || defined(__sparcv9) 93 94 #if !defined(_LP64) && defined(__cplusplus) 95 typedef int sigjmp_buf[_SIGJBLEN]; 96 #else 97 typedef long sigjmp_buf[_SIGJBLEN]; 98 #endif 99 100 #else 101 #error "ISA not supported" 102 #endif 103 104 #define setjmp(env) _sigsetjmp((env), 1) 105 #define longjmp(env, val) _siglongjmp((env), (val)) 106 #define _setjmp(env) _sigsetjmp((env), 0) 107 #define _longjmp(env, val) _siglongjmp((env), (val)) 108 109 #if defined(__STDC__) 110 111 extern int _sigsetjmp(sigjmp_buf, int) __RETURNS_TWICE; 112 #pragma unknown_control_flow(_sigsetjmp) 113 extern void _siglongjmp(sigjmp_buf, int) __NORETURN; 114 115 extern int sigsetjmp(sigjmp_buf, int) __RETURNS_TWICE; 116 #pragma unknown_control_flow(sigsetjmp) 117 extern void siglongjmp(sigjmp_buf, int) __NORETURN; 118 119 #else 120 121 extern int _sigsetjmp() __RETURNS_TWICE; 122 #pragma unknown_control_flow(_sigsetjmp) 123 extern void _siglongjmp(); 124 125 extern int sigsetjmp() __RETURNS_TWICE; 126 #pragma unknown_control_flow(sigsetjmp) 127 extern void siglongjmp(); 128 129 #endif /* __STDC__ */ 130 131 #ifdef __cplusplus 132 } 133 #endif 134 135 #endif /* _SETJMP_H */ 136