1*ce099b40Smartin/* $NetBSD: getcontext.S,v 1.3 2008/04/28 20:22:57 martin Exp $ */ 23fdac2b8Sthorpej 33fdac2b8Sthorpej/*- 43fdac2b8Sthorpej * Copyright (c) 2001 The NetBSD Foundation, Inc. 53fdac2b8Sthorpej * All rights reserved. 63fdac2b8Sthorpej * 73fdac2b8Sthorpej * This code is derived from software contributed to The NetBSD Foundation 83fdac2b8Sthorpej * by Klaus Klein. 93fdac2b8Sthorpej * 103fdac2b8Sthorpej * Redistribution and use in source and binary forms, with or without 113fdac2b8Sthorpej * modification, are permitted provided that the following conditions 123fdac2b8Sthorpej * are met: 133fdac2b8Sthorpej * 1. Redistributions of source code must retain the above copyright 143fdac2b8Sthorpej * notice, this list of conditions and the following disclaimer. 153fdac2b8Sthorpej * 2. Redistributions in binary form must reproduce the above copyright 163fdac2b8Sthorpej * notice, this list of conditions and the following disclaimer in the 173fdac2b8Sthorpej * documentation and/or other materials provided with the distribution. 183fdac2b8Sthorpej * 193fdac2b8Sthorpej * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 203fdac2b8Sthorpej * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 213fdac2b8Sthorpej * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 223fdac2b8Sthorpej * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 233fdac2b8Sthorpej * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 243fdac2b8Sthorpej * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 253fdac2b8Sthorpej * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 263fdac2b8Sthorpej * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 273fdac2b8Sthorpej * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 283fdac2b8Sthorpej * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 293fdac2b8Sthorpej * POSSIBILITY OF SUCH DAMAGE. 303fdac2b8Sthorpej */ 313fdac2b8Sthorpej 323fdac2b8Sthorpej#include <machine/asm.h> 333fdac2b8Sthorpej#if defined(SYSLIBC_SCCS) && !defined(lint) 34*ce099b40Smartin RCSID("$NetBSD: getcontext.S,v 1.3 2008/04/28 20:22:57 martin Exp $") 353fdac2b8Sthorpej#endif /* SYSLIBC_SCCS and not lint */ 363fdac2b8Sthorpej 373fdac2b8Sthorpej#include "SYS.h" 383fdac2b8Sthorpej 393fdac2b8Sthorpej#ifdef WEAK_ALIAS 403fdac2b8SthorpejWEAK_ALIAS(getcontext,_getcontext) 413fdac2b8Sthorpej#endif 423fdac2b8Sthorpej 433fdac2b8Sthorpej_SYSCALL(_getcontext,getcontext) 443fdac2b8Sthorpej sts pr, r2 453fdac2b8Sthorpej mov.l r2, @(36 + 1 * 4, r4) /* saved pc <- pr */ 463fdac2b8Sthorpej add #36 + 20 * 4, r4 473fdac2b8Sthorpej rts 483fdac2b8Sthorpej mov.l r0, @r4 /* arrange for return value 0 */ 49