xref: /minix3/lib/libc/compat/arch/sh3/sys/compat___sigtramp1.S (revision 2fe8fb192fe7e8720e3e7a77f928da545e872a6a)
1*2fe8fb19SBen Gras/*	$NetBSD: compat___sigtramp1.S,v 1.2 2008/04/28 20:22:59 martin Exp $	*/
2*2fe8fb19SBen Gras
3*2fe8fb19SBen Gras/*-
4*2fe8fb19SBen Gras * Copyright (c) 2002 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 Jason R. Thorpe.
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
34*2fe8fb19SBen Gras/*
35*2fe8fb19SBen Gras * The SH signal trampoline is invoked only to return from
36*2fe8fb19SBen Gras * the signal; the kernel calls the signal handler directly.
37*2fe8fb19SBen Gras *
38*2fe8fb19SBen Gras * On entry, stack looks like:
39*2fe8fb19SBen Gras *
40*2fe8fb19SBen Gras *	sp->	sigcontext structure
41*2fe8fb19SBen Gras */
42*2fe8fb19SBen GrasNENTRY(__sigtramp_sigcontext_1)
43*2fe8fb19SBen Gras	mov	r15, r4			/* get pointer to sigcontext */
44*2fe8fb19SBen Gras	SYSTRAP(compat_16___sigreturn14) /* and call sigreturn() */
45*2fe8fb19SBen Gras	mov	r0, r4			/* exit with errno */
46*2fe8fb19SBen Gras	SYSTRAP(exit)			/* if sigreturn fails */
47