1/*-
2 * SPDX-License-Identifier: BSD-4-Clause
3 *
4 * Copyright (C) 1995, 1996 Wolfgang Solfrank.
5 * Copyright (C) 1995, 1996 TooLs GmbH.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
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. All advertising materials mentioning features or use of this software
17 *    must display the following acknowledgement:
18 *	This product includes software developed by TooLs GmbH.
19 * 4. The name of TooLs GmbH may not be used to endorse or promote products
20 *    derived from this software without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
25 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
26 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
27 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
28 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
29 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
30 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
31 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 *
33 * $NetBSD: signal.h,v 1.4 1998/09/14 02:48:34 thorpej Exp $
34 * $FreeBSD$
35 */
36
37#ifndef	_MACHINE_UCONTEXT_H_
38#define	_MACHINE_UCONTEXT_H_
39
40typedef struct __mcontext {
41	int		mc_vers;
42	int		mc_flags;
43#define _MC_FP_VALID	0x01
44#define _MC_AV_VALID	0x02
45	int		mc_onstack;	  	/* saved onstack flag */
46	int		mc_len;			/* sizeof(__mcontext) */
47	__uint64_t	mc_avec[32*2];		/* vector register file */
48	__uint32_t	mc_av[2];
49	__register_t	mc_frame[42];
50	__uint64_t	mc_fpreg[33];
51	__uint64_t	mc_vsxfpreg[32];	/* low-order half of VSR0-31 */
52} mcontext_t __aligned(16);
53
54#if defined(_KERNEL) && defined(__powerpc64__)
55typedef struct __mcontext32 {
56	int		mc_vers;
57	int		mc_flags;
58#define _MC_FP_VALID	0x01
59#define _MC_AV_VALID	0x02
60	int		mc_onstack;	  	/* saved onstack flag */
61	int		mc_len;			/* sizeof(__mcontext) */
62	uint64_t	mc_avec[32*2];		/* vector register file */
63	uint32_t	mc_av[2];
64	uint32_t	mc_frame[42];
65	uint64_t	mc_fpreg[33];
66	uint64_t	mc_vsxfpreg[32];	/* low-order half of VSR0-31 */
67} mcontext32_t __aligned(16);
68#endif
69
70/* GPRs and supervisor-level regs */
71#define mc_gpr		mc_frame
72#define mc_lr		mc_frame[32]
73#define mc_cr		mc_frame[33]
74#define mc_xer		mc_frame[34]
75#define	mc_ctr		mc_frame[35]
76#define mc_srr0		mc_frame[36]
77#define mc_srr1		mc_frame[37]
78#define mc_exc		mc_frame[38]
79#define mc_dar		mc_frame[39]
80#define mc_dsisr	mc_frame[40]
81
82/* floating-point state */
83#define mc_fpscr	mc_fpreg[32]
84
85/* altivec state */
86#define mc_vscr		mc_av[0]
87#define mc_vrsave	mc_av[1]
88
89#define _MC_VERSION	0x1
90#define _MC_VERSION_KSE 0xee	/* partial ucontext for libpthread */
91
92#endif	/* !_MACHINE_UCONTEXT_H_ */
93