11.1Suwe/*	$NetBSD: contextspfunc.S,v 1.1 2025/04/26 22:34:52 uwe Exp $	*/
21.1Suwe
31.1Suwe/*-
41.1Suwe * Copyright (c) 2025 The NetBSD Foundation, Inc.
51.1Suwe * All rights reserved.
61.1Suwe *
71.1Suwe * Redistribution and use in source and binary forms, with or without
81.1Suwe * modification, are permitted provided that the following conditions
91.1Suwe * are met:
101.1Suwe * 1. Redistributions of source code must retain the above copyright
111.1Suwe *    notice, this list of conditions and the following disclaimer.
121.1Suwe * 2. Redistributions in binary form must reproduce the above copyright
131.1Suwe *    notice, this list of conditions and the following disclaimer in the
141.1Suwe *    documentation and/or other materials provided with the distribution.
151.1Suwe *
161.1Suwe * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
171.1Suwe * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
181.1Suwe * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
191.1Suwe * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
201.1Suwe * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
211.1Suwe * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
221.1Suwe * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
231.1Suwe * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
241.1Suwe * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
251.1Suwe * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
261.1Suwe * POSSIBILITY OF SUCH DAMAGE.
271.1Suwe */
281.1Suwe
291.1Suwe#include "asm.h"
301.1Suwe
311.1SuweRCSID("$NetBSD: contextspfunc.S,v 1.1 2025/04/26 22:34:52 uwe Exp $")
321.1Suwe
331.1Suwe
341.1Suwe/*
351.1Suwe * void contextspfunc()
361.1Suwe *
371.1Suwe *	makecontext(3) function.  Store the stack pointer on entry at
381.1Suwe *	the global variable contextsp and call contextdone.
391.1Suwe */
401.1SuweENTRY(contextspfunc)
411.1Suwe	mov	sp, r1
421.1Suwe	PIC_PROLOGUE(.L_GOT)
431.1Suwe
441.1Suwe	MOVL_VAR(.L_contextsp, r0)
451.1Suwe	mov.l	r1, @r0
461.1Suwe
471.1Suwe	mov.l	.L_contextdone, r0
481.1Suwe1:	JUMP	r0
491.1Suwe	 PIC_EPILOGUE_SLOT
501.1Suwe
511.1Suwe	.p2align 2
521.1Suwe.L_GOT:		PIC_GOT_DATUM
531.1Suwe.L_contextsp:	VAR_DATUM(contextsp)
541.1Suwe.L_contextdone:	CALL_DATUM(contextdone, 1b)
551.1Suwe	SET_ENTRY_SIZE(contextspfunc)
56