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#pragma ident "%Z%%M% %I% %E% SMI" 28 29/* 30 * The UCB setjmp(env) is the same as SYSV's sigsetjmp(env, 1) 31 * while _setjmp(env) is the same as SYSV's sigsetjmp(env, 0) 32 * Both longjmp(env, val) and _longjmp(env, val) are the same 33 * as SYSV's siglongjmp(env, val). 34 * 35 * These are #defined as such in /usr/ucbinclude/setjmp.h 36 * but setjmp/longjmp and _setjmp/_longjmp have historically 37 * been entry points in libucb, so for binary compatibility 38 * we implement them as tail calls into libc in order to make 39 * them appear as direct calls to sigsetjmp/siglongjmp, which 40 * is essential for the correct operation of sigsetjmp. 41 */ 42 43 .file "%M%" 44 45#include <sys/asm_linkage.h> 46 47 ANSI_PRAGMA_WEAK(longjmp,function) 48 49 ENTRY_NP(setjmp) 50 mov %o7, %g1 51 mov 1, %o1 52 call _sigsetjmp 53 mov %g1, %o7 54 SET_SIZE(setjmp) 55 56 ENTRY_NP(_setjmp) 57 mov %o7, %g1 58 clr %o1 59 call _sigsetjmp 60 mov %g1, %o7 61 SET_SIZE(_setjmp) 62 63 ENTRY_NP(_longjmp) 64 mov %o7, %g1 65 call _siglongjmp 66 mov %g1, %o7 67 SET_SIZE(_longjmp) 68