getcontext.S revision 1.7 1 1.7 skrll /* $NetBSD: getcontext.S,v 1.7 2020/10/15 05:43:38 skrll Exp $ */
2 1.1 matt
3 1.1 matt /*-
4 1.1 matt * Copyright (c) 2001 The NetBSD Foundation, Inc.
5 1.1 matt * All rights reserved.
6 1.1 matt *
7 1.1 matt * This code is derived from software contributed to The NetBSD Foundation
8 1.1 matt * by Matt Fredette.
9 1.1 matt *
10 1.1 matt * Redistribution and use in source and binary forms, with or without
11 1.1 matt * modification, are permitted provided that the following conditions
12 1.1 matt * are met:
13 1.1 matt * 1. Redistributions of source code must retain the above copyright
14 1.1 matt * notice, this list of conditions and the following disclaimer.
15 1.1 matt * 2. Redistributions in binary form must reproduce the above copyright
16 1.1 matt * notice, this list of conditions and the following disclaimer in the
17 1.1 matt * documentation and/or other materials provided with the distribution.
18 1.1 matt *
19 1.1 matt * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 1.1 matt * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 1.1 matt * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 1.1 matt * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 1.1 matt * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 1.1 matt * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 1.1 matt * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 1.1 matt * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 1.1 matt * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 1.1 matt * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 1.1 matt * POSSIBILITY OF SUCH DAMAGE.
30 1.1 matt */
31 1.1 matt
32 1.1 matt #include "SYS.h"
33 1.5 skrll #include "assym.h"
34 1.1 matt
35 1.3 chs #ifdef WEAK_ALIAS
36 1.3 chs WEAK_ALIAS(getcontext, _getcontext)
37 1.3 chs #endif
38 1.1 matt
39 1.3 chs ENTRY(_getcontext, 0)
40 1.3 chs SYSCALL(getcontext)
41 1.7 skrll stw %rp, (_UC_GREGS + _REG_PCOQH * SZREG)(%arg0)
42 1.3 chs ldo 4(%rp), %r1
43 1.7 skrll stw %r1, (_UC_GREGS + _REG_PCOQT * SZREG)(%arg0)
44 1.3 chs bv %r0(%rp)
45 1.7 skrll stw %r0, (_UC_GREGS + _REG_RET0 * SZREG)(%arg0)
46 1.3 chs EXIT(_getcontext)
47