1*2fe8fb19SBen Gras/* $NetBSD: compat_sigsetjmp.S,v 1.1 2005/09/16 18:21:19 drochner Exp $ */ 2*2fe8fb19SBen Gras 3*2fe8fb19SBen Gras/* 4*2fe8fb19SBen Gras * Copyright (c) 1994, 1995 Carnegie-Mellon University. 5*2fe8fb19SBen Gras * All rights reserved. 6*2fe8fb19SBen Gras * 7*2fe8fb19SBen Gras * Author: Chris G. Demetriou 8*2fe8fb19SBen Gras * 9*2fe8fb19SBen Gras * Permission to use, copy, modify and distribute this software and 10*2fe8fb19SBen Gras * its documentation is hereby granted, provided that both the copyright 11*2fe8fb19SBen Gras * notice and this permission notice appear in all copies of the 12*2fe8fb19SBen Gras * software, derivative works or modified versions, and any portions 13*2fe8fb19SBen Gras * thereof, and that both notices appear in supporting documentation. 14*2fe8fb19SBen Gras * 15*2fe8fb19SBen Gras * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 16*2fe8fb19SBen Gras * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 17*2fe8fb19SBen Gras * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 18*2fe8fb19SBen Gras * 19*2fe8fb19SBen Gras * Carnegie Mellon requests users of this software to return to 20*2fe8fb19SBen Gras * 21*2fe8fb19SBen Gras * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 22*2fe8fb19SBen Gras * School of Computer Science 23*2fe8fb19SBen Gras * Carnegie Mellon University 24*2fe8fb19SBen Gras * Pittsburgh PA 15213-3890 25*2fe8fb19SBen Gras * 26*2fe8fb19SBen Gras * any improvements or extensions that they make and grant Carnegie the 27*2fe8fb19SBen Gras * rights to redistribute these changes. 28*2fe8fb19SBen Gras */ 29*2fe8fb19SBen Gras 30*2fe8fb19SBen Gras#include <machine/asm.h> 31*2fe8fb19SBen Gras 32*2fe8fb19SBen Gras/* 33*2fe8fb19SBen Gras * C library -- sigsetjmp, siglongjmp 34*2fe8fb19SBen Gras * 35*2fe8fb19SBen Gras * siglongjmp(a,v) 36*2fe8fb19SBen Gras * will generate a "return(v)" from 37*2fe8fb19SBen Gras * the last call to 38*2fe8fb19SBen Gras * sigsetjmp(a, mask) 39*2fe8fb19SBen Gras * by restoring registers from the stack. 40*2fe8fb19SBen Gras * If `mask' is non-zero, the previous signal 41*2fe8fb19SBen Gras * state will be restored. 42*2fe8fb19SBen Gras */ 43*2fe8fb19SBen Gras 44*2fe8fb19SBen Gras .set noreorder 45*2fe8fb19SBen Gras 46*2fe8fb19SBen GrasLEAF(sigsetjmp, 2) 47*2fe8fb19SBen Gras LDGP(pv) 48*2fe8fb19SBen Gras stq a1, (81 * 8)(a0) /* save the mask */ 49*2fe8fb19SBen Gras bne a1, Lsavesig /* if !zero, save signals */ 50*2fe8fb19SBen Gras jmp zero, _setjmp /* else don't. */ 51*2fe8fb19SBen GrasLsavesig: 52*2fe8fb19SBen Gras jmp zero, setjmp 53*2fe8fb19SBen GrasEND(sigsetjmp) 54*2fe8fb19SBen Gras 55*2fe8fb19SBen GrasLEAF(siglongjmp, 2) 56*2fe8fb19SBen Gras LDGP(pv) 57*2fe8fb19SBen Gras ldq t0, (81 * 8)(a0) /* get the mask */ 58*2fe8fb19SBen Gras bne t0, Lrestoresig /* if !zero, restore signals */ 59*2fe8fb19SBen Gras jmp zero, _longjmp 60*2fe8fb19SBen GrasLrestoresig: 61*2fe8fb19SBen Gras jmp zero, longjmp 62*2fe8fb19SBen GrasEND(siglongjmp) 63