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 http://www.opensolaris.org/os/licensing. 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 2008 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 .file "setjmp.s" 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#include <sys/asm_linkage.h> 44 45 ANSI_PRAGMA_WEAK(longjmp,function) 46 47 ENTRY_NP(setjmp) 48 mov %o7, %g1 49 mov 1, %o1 50 call _sigsetjmp 51 mov %g1, %o7 52 SET_SIZE(setjmp) 53 54 ENTRY_NP(_setjmp) 55 mov %o7, %g1 56 clr %o1 57 call _sigsetjmp 58 mov %g1, %o7 59 SET_SIZE(_setjmp) 60 61 ENTRY_NP(longjmp) 62 mov %o7, %g1 63 call _siglongjmp 64 mov %g1, %o7 65 SET_SIZE(longjmp) 66