1/*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 1999 Marcel Moolenaar
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer
12 *    in this position and unchanged.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 * 3. The name of the author may not be used to endorse or promote products
17 *    derived from this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 *
30 *	from: FreeBSD: src/sys/alpha/include/ucontext.h,v 1.3 1999/10/08
31 * $FreeBSD$
32 */
33
34#ifndef _MACHINE_UCONTEXT_H_
35#define	_MACHINE_UCONTEXT_H_
36
37struct __mcontext {
38	__uint64_t mc_global[8];
39	__uint64_t mc_out[8];
40	__uint64_t mc_local[8];
41	__uint64_t mc_in[8];
42	__uint32_t mc_fp[64];
43} __aligned(64);
44
45typedef struct __mcontext mcontext_t;
46
47#define	_mc_flags	mc_global[0]
48#define	_mc_sp		mc_out[6]
49#define	_mc_fprs	mc_local[0]
50#define	_mc_fsr		mc_local[1]
51#define	_mc_gsr		mc_local[2]
52#define	_mc_tnpc	mc_in[0]
53#define	_mc_tpc		mc_in[1]
54#define	_mc_tstate	mc_in[2]
55#define	_mc_y		mc_in[4]
56#define	_mc_wstate	mc_in[5]
57
58#define	_MC_VERSION_SHIFT	0
59#define	_MC_VERSION_BITS	32
60#define	_MC_VERSION		1L
61
62#define	_MC_FLAGS_SHIFT		32
63#define	_MC_FLAGS_BITS		32
64#define	_MC_VOLUNTARY		((1L << 0) << _MC_FLAGS_SHIFT)
65
66#endif /* !_MACHINE_UCONTEXT_H_ */
67