1/* $NetBSD: __sigsetjmp14.S,v 1.2 2000/06/14 06:49:01 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 32/* 33 * C library -- sigsetjmp, siglongjmp 34 * 35 * siglongjmp(a,v) 36 * will generate a "return(v)" from 37 * the last call to 38 * sigsetjmp(a, mask) 39 * by restoring registers from the stack. 40 * If `mask' is non-zero, the previous signal 41 * state will be restored. 42 */ 43 44 .set noreorder 45 46LEAF(__sigsetjmp14, 2) 47 LDGP(pv) 48 stq a1, (83 * 8)(a0) /* save the mask */ 49 bne a1, Lsavesig /* if !zero, save signals */ 50 jmp zero, _setjmp /* else don't. */ 51Lsavesig: 52 jmp zero, __setjmp14 53END(__sigsetjmp14) 54 55LEAF(__siglongjmp14, 2) 56 LDGP(pv) 57 ldq t0, (83 * 8)(a0) /* get the mask */ 58 bne t0, Lrestoresig /* if !zero, restore signals */ 59 jmp zero, _longjmp 60Lrestoresig: 61 jmp zero, __longjmp14 62END(__siglongjmp14) 63