1*0a6a1f1dSLionel Sambuc/* $NetBSD: getcontext.S,v 1.5 2014/08/23 02:24:22 matt Exp $ */ 22fe8fb19SBen Gras 32fe8fb19SBen Gras/*- 42fe8fb19SBen Gras * Copyright (c) 2001 The NetBSD Foundation, Inc. 52fe8fb19SBen Gras * All rights reserved. 62fe8fb19SBen Gras * 72fe8fb19SBen Gras * This code is derived from software contributed to The NetBSD Foundation 82fe8fb19SBen Gras * by Klaus Klein. 92fe8fb19SBen Gras * 102fe8fb19SBen Gras * Redistribution and use in source and binary forms, with or without 112fe8fb19SBen Gras * modification, are permitted provided that the following conditions 122fe8fb19SBen Gras * are met: 132fe8fb19SBen Gras * 1. Redistributions of source code must retain the above copyright 142fe8fb19SBen Gras * notice, this list of conditions and the following disclaimer. 152fe8fb19SBen Gras * 2. Redistributions in binary form must reproduce the above copyright 162fe8fb19SBen Gras * notice, this list of conditions and the following disclaimer in the 172fe8fb19SBen Gras * documentation and/or other materials provided with the distribution. 182fe8fb19SBen Gras * 192fe8fb19SBen Gras * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 202fe8fb19SBen Gras * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 212fe8fb19SBen Gras * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 222fe8fb19SBen Gras * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 232fe8fb19SBen Gras * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 242fe8fb19SBen Gras * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 252fe8fb19SBen Gras * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 262fe8fb19SBen Gras * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 272fe8fb19SBen Gras * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 282fe8fb19SBen Gras * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 292fe8fb19SBen Gras * POSSIBILITY OF SUCH DAMAGE. 302fe8fb19SBen Gras */ 312fe8fb19SBen Gras 322fe8fb19SBen Gras#include "SYS.h" 33*0a6a1f1dSLionel Sambuc#include "assym.h" 342fe8fb19SBen Gras 35*0a6a1f1dSLionel Sambuc#if defined(LIBC_SCCS) && !defined(lint) 36*0a6a1f1dSLionel Sambuc__RCSID("$NetBSD: getcontext.S,v 1.5 2014/08/23 02:24:22 matt Exp $") 37*0a6a1f1dSLionel Sambuc#endif /* LIBC_SCCS && !lint */ 382fe8fb19SBen Gras 392fe8fb19SBen Gras#ifdef WEAK_ALIAS 402fe8fb19SBen GrasWEAK_ALIAS(getcontext, _getcontext) 412fe8fb19SBen Gras#endif 422fe8fb19SBen Gras 432fe8fb19SBen GrasENTRY(_getcontext) 442fe8fb19SBen Gras mr %r5,%r3 # must save pointer 45*0a6a1f1dSLionel Sambuc _DOSYSCALL(getcontext) 462fe8fb19SBen Gras bso 1f 472fe8fb19SBen Gras mflr %r4 48*0a6a1f1dSLionel Sambuc stptr %r4,UC_GREGS_PC(%r5) # saved pc <- lr 49*0a6a1f1dSLionel Sambuc stint %r3,UC_GREGS_R3(%r5) # arrange for return value 0 502fe8fb19SBen Gras blr 512fe8fb19SBen Gras1: 52*0a6a1f1dSLionel Sambuc BRANCH_TO_CERROR() 53*0a6a1f1dSLionel SambucEND(_getcontext) 54