1*0a6a1f1dSLionel Sambuc/* $NetBSD: swapcontext.S,v 1.6 2014/02/19 13:01:51 skrll 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" 34*0a6a1f1dSLionel Sambuc 352fe8fb19SBen Gras#include <machine/mcontext.h> 362fe8fb19SBen Gras 372fe8fb19SBen Gras#if defined(SYSLIBC_SCCS) && !defined(lint) 38*0a6a1f1dSLionel Sambuc RCSID("$NetBSD: swapcontext.S,v 1.6 2014/02/19 13:01:51 skrll Exp $") 392fe8fb19SBen Gras#endif /* SYSLIBC_SCCS && !lint */ 402fe8fb19SBen Gras 412fe8fb19SBen GrasLEAF_ENTRY(swapcontext) 422fe8fb19SBen Gras stw %rp, HPPA_FRAME_CRP(%sp) 432fe8fb19SBen Gras stw %arg0, HPPA_FRAME_ARG(0)(%sp) 442fe8fb19SBen Gras stw %arg1, HPPA_FRAME_ARG(1)(%sp) 452fe8fb19SBen Gras SYSCALL(getcontext) 462fe8fb19SBen Gras 472fe8fb19SBen Gras ldw HPPA_FRAME_ARG(0)(%sp), %arg1 482fe8fb19SBen Gras ldw HPPA_FRAME_ARG(1)(%sp), %arg0 49e415d488SLionel Sambuc 50e415d488SLionel Sambuc ldw HPPA_FRAME_CRP(%sp), %rp 512fe8fb19SBen Gras ldo 4(%rp), %r1 522fe8fb19SBen Gras stw %r1, (_OFFSETOF_UC_GREGS + _REG_PCOQT * SZREG)(%arg1) 532fe8fb19SBen Gras stw %rp, (_OFFSETOF_UC_GREGS + _REG_PCOQH * SZREG)(%arg1) 54e415d488SLionel Sambuc bl setcontext, %rp 55e415d488SLionel Sambuc stw %r0, (_OFFSETOF_UC_GREGS + _REG_RET0 * SZREG)(%arg1) 56e415d488SLionel Sambuc 57e415d488SLionel Sambuc ldw HPPA_FRAME_CRP(%sp), %rp 58e415d488SLionel Sambuc bv,n %r0(%rp) 592fe8fb19SBen GrasEXIT(swapcontext) 602fe8fb19SBen Gras .end 61