1/* $NetBSD: sigsetjmp.S,v 1.2 1996/10/17 03:08:07 cgd Exp $ */ 2 3/* 4 * Copyright (c) 1994, 1995 Carnegie-Mellon University. 5 * All rights reserved. 6 * 7 * Author: Chris G. Demetriou 8 * 9 * Permission to use, copy, modify and distribute this software and 10 * its documentation is hereby granted, provided that both the copyright 11 * notice and this permission notice appear in all copies of the 12 * software, derivative works or modified versions, and any portions 13 * thereof, and that both notices appear in supporting documentation. 14 * 15 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 16 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 17 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 18 * 19 * Carnegie Mellon requests users of this software to return to 20 * 21 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 22 * School of Computer Science 23 * Carnegie Mellon University 24 * Pittsburgh PA 15213-3890 25 * 26 * any improvements or extensions that they make and grant Carnegie the 27 * rights to redistribute these changes. 28 */ 29 30#include <machine/asm.h> 31__FBSDID("$FreeBSD: releng/10.3/lib/libc/ia64/gen/sigsetjmp.S 111777 2003-03-03 01:09:46Z obrien $"); 32 33#define LOCORE 34#include <machine/setjmp.h> 35 36/* 37 * C library -- sigsetjmp, siglongjmp 38 * 39 * siglongjmp(a,v) 40 * will generate a "return(v)" from 41 * the last call to 42 * sigsetjmp(a, mask) 43 * by restoring registers from the stack. 44 * If `mask' is non-zero, the previous signal 45 * state will be restored. 46 */ 47 48ENTRY(sigsetjmp, 2) 49 add r14=J_SIGMASK,in0 // place to save mask 50 cmp.ne p6,p7=0,in1 // save signal state? 51 ;; 52 st8 [r14]=in1 // save mask value 53(p6) br.cond.dptk.many setjmp 54(p7) br.cond.dpnt.many _setjmp 55END(sigsetjmp) 56 57 WEAK_ALIAS(siglongjmp,__siglongjmp) 58ENTRY(__siglongjmp, 2) 59 add r14=J_SIGMASK,in0 // address of mask value 60 ;; 61 ld8 r14=[r14] 62 ;; 63 cmp.ne p6,p7=0,r14 // did we save signals? 64(p6) br.cond.dptk.many longjmp 65(p7) br.cond.dpnt.many _longjmp 66END(__siglongjmp) 67