1/* $OpenBSD: sigsetjmp.S,v 1.3 2016/08/06 19:16:09 guenther Exp $ */ 2/* $NetBSD: sigsetjmp.S,v 1.3 2002/08/17 19:54:30 thorpej Exp $ */ 3 4/* 5 * Copyright (c) 1997 Mark Brinicombe 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by Mark Brinicombe 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36#include "DEFS.h" 37#include <machine/setjmp.h> 38 39/* 40 * C library -- sigsetjmp, siglongjmp 41 * 42 * longjmp(a,v) 43 * will generate a "return(v)" from the last call to 44 * setjmp(a, m) 45 * by restoring registers from the stack. 46 * The previous signal state is restored. 47 */ 48 49ENTRY(sigsetjmp) 50 teq r1, #0 51 beq _HIDDEN(_setjmp) 52 b _HIDDEN(setjmp) 53 54.L_setjmp_magic: 55 .word _JB_MAGIC__SETJMP 56 57ENTRY(siglongjmp) 58 ldr r2, .L_setjmp_magic 59 ldr r3, [r0] 60 teq r2, r3 61 beq _HIDDEN(_longjmp) 62 b _HIDDEN(longjmp) 63