1251509Sandrew/* $NetBSD: sigsetjmp.S,v 1.6 2013/04/19 16:50:22 matt Exp $ */ 2129202Scognet 3129202Scognet/* 4129202Scognet * Copyright (c) 1997 Mark Brinicombe 5129202Scognet * All rights reserved. 6129202Scognet * 7129202Scognet * Redistribution and use in source and binary forms, with or without 8129202Scognet * modification, are permitted provided that the following conditions 9129202Scognet * are met: 10129202Scognet * 1. Redistributions of source code must retain the above copyright 11129202Scognet * notice, this list of conditions and the following disclaimer. 12129202Scognet * 2. Redistributions in binary form must reproduce the above copyright 13129202Scognet * notice, this list of conditions and the following disclaimer in the 14129202Scognet * documentation and/or other materials provided with the distribution. 15129202Scognet * 3. All advertising materials mentioning features or use of this software 16129202Scognet * must display the following acknowledgement: 17129202Scognet * This product includes software developed by Mark Brinicombe 18129202Scognet * 4. Neither the name of the University nor the names of its contributors 19129202Scognet * may be used to endorse or promote products derived from this software 20129202Scognet * without specific prior written permission. 21129202Scognet * 22129202Scognet * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 23129202Scognet * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24129202Scognet * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25129202Scognet * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 26129202Scognet * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27129202Scognet * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28129202Scognet * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29129202Scognet * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30129202Scognet * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31129202Scognet * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32129202Scognet * SUCH DAMAGE. 33129202Scognet */ 34129202Scognet 35129202Scognet#include <machine/asm.h> 36129202Scognet__FBSDID("$FreeBSD$"); 37129202Scognet 38251509Sandrew#include <machine/setjmp.h> 39251509Sandrew 40129202Scognet/* 41129202Scognet * C library -- sigsetjmp, siglongjmp 42129202Scognet * 43129202Scognet * longjmp(a,v) 44129202Scognet * will generate a "return(v)" from the last call to 45129202Scognet * setjmp(a, m) 46129202Scognet * by restoring registers from the stack. 47129202Scognet * The previous signal state is restored. 48129202Scognet */ 49129202Scognet 50129202ScognetENTRY(sigsetjmp) 51129202Scognet teq r1, #0 52129202Scognet beq PIC_SYM(_C_LABEL(_setjmp), PLT) 53129202Scognet b PIC_SYM(_C_LABEL(setjmp), PLT) 54129202Scognet 55129202Scognet.L_setjmp_magic: 56129202Scognet .word _JB_MAGIC__SETJMP 57137461ScognetWEAK_ALIAS(__siglongjmp, siglongjmp) 58129202Scognet 59129202ScognetENTRY(siglongjmp) 60253518Sandrew ldr r2, .L_setjmp_magic /* load magic */ 61253518Sandrew ldr r3, [r0] /* get magic from jmp_buf */ 62253518Sandrew bic r3, r3, #(_JB_MAGIC__SETJMP ^ _JB_MAGIC__SETJMP_VFP) 63253518Sandrew /* ignore VFP-ness of magic */ 64253518Sandrew teq r2, r3 /* magic correct? */ 65129202Scognet beq PIC_SYM(_C_LABEL(_longjmp), PLT) 66129202Scognet b PIC_SYM(_C_LABEL(longjmp), PLT) 67