10Sstevel@tonic-gate/* 20Sstevel@tonic-gate * CDDL HEADER START 30Sstevel@tonic-gate * 40Sstevel@tonic-gate * The contents of this file are subject to the terms of the 56812Sraf * Common Development and Distribution License (the "License"). 66812Sraf * You may not use this file except in compliance with the License. 70Sstevel@tonic-gate * 80Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 90Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 100Sstevel@tonic-gate * See the License for the specific language governing permissions 110Sstevel@tonic-gate * and limitations under the License. 120Sstevel@tonic-gate * 130Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 140Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 150Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 160Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 170Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 180Sstevel@tonic-gate * 190Sstevel@tonic-gate * CDDL HEADER END 200Sstevel@tonic-gate */ 216812Sraf 220Sstevel@tonic-gate/* 236812Sraf * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 240Sstevel@tonic-gate * Use is subject to license terms. 250Sstevel@tonic-gate */ 260Sstevel@tonic-gate 27*7298SMark.J.Nelson@Sun.COM .file "setjmp.s" 286812Sraf 290Sstevel@tonic-gate/* 300Sstevel@tonic-gate * The UCB setjmp(env) is the same as SYSV's sigsetjmp(env, 1) 310Sstevel@tonic-gate * while _setjmp(env) is the same as SYSV's sigsetjmp(env, 0) 320Sstevel@tonic-gate * Both longjmp(env, val) and _longjmp(env, val) are the same 330Sstevel@tonic-gate * as SYSV's siglongjmp(env, val). 340Sstevel@tonic-gate * 350Sstevel@tonic-gate * These are #defined as such in /usr/ucbinclude/setjmp.h 360Sstevel@tonic-gate * but setjmp/longjmp and _setjmp/_longjmp have historically 370Sstevel@tonic-gate * been entry points in libucb, so for binary compatibility 380Sstevel@tonic-gate * we implement them as tail calls into libc in order to make 390Sstevel@tonic-gate * them appear as direct calls to sigsetjmp/siglongjmp, which 400Sstevel@tonic-gate * is essential for the correct operation of sigsetjmp. 410Sstevel@tonic-gate */ 420Sstevel@tonic-gate 430Sstevel@tonic-gate#include <sys/asm_linkage.h> 440Sstevel@tonic-gate 450Sstevel@tonic-gate ANSI_PRAGMA_WEAK(longjmp,function) 460Sstevel@tonic-gate 470Sstevel@tonic-gate ENTRY_NP(setjmp) 480Sstevel@tonic-gate mov %o7, %g1 490Sstevel@tonic-gate mov 1, %o1 500Sstevel@tonic-gate call _sigsetjmp 510Sstevel@tonic-gate mov %g1, %o7 520Sstevel@tonic-gate SET_SIZE(setjmp) 530Sstevel@tonic-gate 540Sstevel@tonic-gate ENTRY_NP(_setjmp) 550Sstevel@tonic-gate mov %o7, %g1 560Sstevel@tonic-gate clr %o1 570Sstevel@tonic-gate call _sigsetjmp 580Sstevel@tonic-gate mov %g1, %o7 590Sstevel@tonic-gate SET_SIZE(_setjmp) 600Sstevel@tonic-gate 616812Sraf ENTRY_NP(longjmp) 620Sstevel@tonic-gate mov %o7, %g1 630Sstevel@tonic-gate call _siglongjmp 640Sstevel@tonic-gate mov %g1, %o7 656812Sraf SET_SIZE(longjmp) 66