1/* $OpenBSD: _setjmp.S,v 1.3 2004/05/04 15:57:06 miod Exp $ */ 2/* $NetBSD: _setjmp.S,v 1.4 1998/10/08 02:27:59 eeh Exp $ */ 3 4/* 5 * Copyright (c) 1992, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * This software was developed by the Computer Systems Engineering group 9 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and 10 * contributed to Berkeley. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 */ 36 37#include <machine/asm.h> 38 39 .register %g2,#ignore 40 .register %g3,#ignore 41 42/* 43 * C library -- _setjmp, _longjmp 44 * 45 * _longjmp(a,v) 46 * will generate a "return(v?v:1)" from 47 * the last call to 48 * _setjmp(a) 49 * by restoring the previous context. 50 * The previous signal state is NOT restored. 51 */ 52 53ENTRY(_setjmp) 54 stx %sp, [%o0 + 0x00] /* store caller's stack pointer */ 55 stx %o7, [%o0 + 0x08] /* ... and return pc */ 56 retl 57 clr %o0 ! return 0 58 59ENTRY(_longjmp) 60 save %sp, -CC64FSZ, %sp 61 flushw 62 ldx [%i0 + 0x00], %fp 63 ldx [%i0 + 0x08], %i7 64 mov 1, %i0 65 movrnz %i1, %i1, %i0 ! compute v ? v : 1 66 ret 67 restore 68