14e75169fSAndrew Turner/* $NetBSD: sigsetjmp.S,v 1.6 2013/04/19 16:50:22 matt Exp $ */ 22357939bSOlivier Houchard 32357939bSOlivier Houchard/* 42357939bSOlivier Houchard * Copyright (c) 1997 Mark Brinicombe 52357939bSOlivier Houchard * All rights reserved. 62357939bSOlivier Houchard * 72357939bSOlivier Houchard * Redistribution and use in source and binary forms, with or without 82357939bSOlivier Houchard * modification, are permitted provided that the following conditions 92357939bSOlivier Houchard * are met: 102357939bSOlivier Houchard * 1. Redistributions of source code must retain the above copyright 112357939bSOlivier Houchard * notice, this list of conditions and the following disclaimer. 122357939bSOlivier Houchard * 2. Redistributions in binary form must reproduce the above copyright 132357939bSOlivier Houchard * notice, this list of conditions and the following disclaimer in the 142357939bSOlivier Houchard * documentation and/or other materials provided with the distribution. 152357939bSOlivier Houchard * 3. All advertising materials mentioning features or use of this software 162357939bSOlivier Houchard * must display the following acknowledgement: 172357939bSOlivier Houchard * This product includes software developed by Mark Brinicombe 182357939bSOlivier Houchard * 4. Neither the name of the University nor the names of its contributors 192357939bSOlivier Houchard * may be used to endorse or promote products derived from this software 202357939bSOlivier Houchard * without specific prior written permission. 212357939bSOlivier Houchard * 222357939bSOlivier Houchard * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 232357939bSOlivier Houchard * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 242357939bSOlivier Houchard * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 252357939bSOlivier Houchard * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 262357939bSOlivier Houchard * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 272357939bSOlivier Houchard * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 282357939bSOlivier Houchard * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 292357939bSOlivier Houchard * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 302357939bSOlivier Houchard * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 312357939bSOlivier Houchard * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 322357939bSOlivier Houchard * SUCH DAMAGE. 332357939bSOlivier Houchard */ 342357939bSOlivier Houchard 352357939bSOlivier Houchard#include <machine/asm.h> 364e75169fSAndrew Turner#include <machine/setjmp.h> 374e75169fSAndrew Turner 382357939bSOlivier Houchard/* 392357939bSOlivier Houchard * C library -- sigsetjmp, siglongjmp 402357939bSOlivier Houchard * 412357939bSOlivier Houchard * longjmp(a,v) 422357939bSOlivier Houchard * will generate a "return(v)" from the last call to 432357939bSOlivier Houchard * setjmp(a, m) 442357939bSOlivier Houchard * by restoring registers from the stack. 452357939bSOlivier Houchard * The previous signal state is restored. 462357939bSOlivier Houchard */ 472357939bSOlivier Houchard 482357939bSOlivier HouchardENTRY(sigsetjmp) 492357939bSOlivier Houchard teq r1, #0 502357939bSOlivier Houchard beq PIC_SYM(_C_LABEL(_setjmp), PLT) 512357939bSOlivier Houchard b PIC_SYM(_C_LABEL(setjmp), PLT) 52f2e71517SIan LeporeEND(sigsetjmp) 532357939bSOlivier Houchard 542357939bSOlivier Houchard.L_setjmp_magic: 552357939bSOlivier Houchard .word _JB_MAGIC__SETJMP 56904e5aceSOlivier HouchardWEAK_ALIAS(__siglongjmp, siglongjmp) 572357939bSOlivier Houchard 582357939bSOlivier HouchardENTRY(siglongjmp) 59f44fbb4cSAndrew Turner ldr r2, .L_setjmp_magic /* load magic */ 60f44fbb4cSAndrew Turner ldr r3, [r0] /* get magic from jmp_buf */ 61f44fbb4cSAndrew Turner bic r3, r3, #(_JB_MAGIC__SETJMP ^ _JB_MAGIC__SETJMP_VFP) 62f44fbb4cSAndrew Turner /* ignore VFP-ness of magic */ 63f44fbb4cSAndrew Turner teq r2, r3 /* magic correct? */ 642357939bSOlivier Houchard beq PIC_SYM(_C_LABEL(_longjmp), PLT) 652357939bSOlivier Houchard b PIC_SYM(_C_LABEL(longjmp), PLT) 66f2e71517SIan LeporeEND(siglongjmp) 67*96cdb0abSKonstantin Belousov 68*96cdb0abSKonstantin Belousov .section .note.GNU-stack,"",%progbits 69