1*2fe8fb19SBen Gras/* $NetBSD: getcontext.S,v 1.4 2009/12/14 01:07:42 matt Exp $ */ 2*2fe8fb19SBen Gras 3*2fe8fb19SBen Gras/*- 4*2fe8fb19SBen Gras * Copyright (c) 2001 The NetBSD Foundation, Inc. 5*2fe8fb19SBen Gras * All rights reserved. 6*2fe8fb19SBen Gras * 7*2fe8fb19SBen Gras * This code is derived from software contributed to The NetBSD Foundation 8*2fe8fb19SBen Gras * by Klaus Klein. 9*2fe8fb19SBen Gras * 10*2fe8fb19SBen Gras * Redistribution and use in source and binary forms, with or without 11*2fe8fb19SBen Gras * modification, are permitted provided that the following conditions 12*2fe8fb19SBen Gras * are met: 13*2fe8fb19SBen Gras * 1. Redistributions of source code must retain the above copyright 14*2fe8fb19SBen Gras * notice, this list of conditions and the following disclaimer. 15*2fe8fb19SBen Gras * 2. Redistributions in binary form must reproduce the above copyright 16*2fe8fb19SBen Gras * notice, this list of conditions and the following disclaimer in the 17*2fe8fb19SBen Gras * documentation and/or other materials provided with the distribution. 18*2fe8fb19SBen Gras * 19*2fe8fb19SBen Gras * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20*2fe8fb19SBen Gras * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21*2fe8fb19SBen Gras * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22*2fe8fb19SBen Gras * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23*2fe8fb19SBen Gras * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24*2fe8fb19SBen Gras * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25*2fe8fb19SBen Gras * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26*2fe8fb19SBen Gras * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27*2fe8fb19SBen Gras * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28*2fe8fb19SBen Gras * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29*2fe8fb19SBen Gras * POSSIBILITY OF SUCH DAMAGE. 30*2fe8fb19SBen Gras */ 31*2fe8fb19SBen Gras 32*2fe8fb19SBen Gras#include "SYS.h" 33*2fe8fb19SBen Gras#include "assym.h" 34*2fe8fb19SBen Gras#include <machine/mcontext.h> 35*2fe8fb19SBen Gras 36*2fe8fb19SBen Gras#if defined(SYSLIBC_SCCS) && !defined(lint) 37*2fe8fb19SBen Gras RCSID("$NetBSD: getcontext.S,v 1.4 2009/12/14 01:07:42 matt Exp $") 38*2fe8fb19SBen Gras#endif /* SYSLIBC_SCCS && !lint */ 39*2fe8fb19SBen Gras 40*2fe8fb19SBen Gras#ifdef WEAK_ALIAS 41*2fe8fb19SBen GrasWEAK_ALIAS(getcontext, _getcontext) 42*2fe8fb19SBen Gras#endif 43*2fe8fb19SBen Gras .set reorder 44*2fe8fb19SBen Gras 45*2fe8fb19SBen GrasLEAF(_getcontext) 46*2fe8fb19SBen Gras PIC_PROLOGUE(_getcontext) 47*2fe8fb19SBen Gras SYSTRAP(getcontext) 48*2fe8fb19SBen Gras bne a3, zero, 1f 49*2fe8fb19SBen Gras REG_PROLOGUE 50*2fe8fb19SBen Gras REG_S zero, (_OFFSETOF_UC_GREGS + _REG_V0 * SZREG)(a0) 51*2fe8fb19SBen Gras REG_S ra, (_OFFSETOF_UC_GREGS + _REG_EPC * SZREG)(a0) 52*2fe8fb19SBen Gras REG_EPILOGUE 53*2fe8fb19SBen Gras PIC_RETURN() 54*2fe8fb19SBen Gras1: 55*2fe8fb19SBen Gras PIC_TAILCALL(__cerror) 56*2fe8fb19SBen GrasEND(_getcontext) 57