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 */
35
36#ifndef _MACHINE_UCONTEXT_H_
37#define _MACHINE_UCONTEXT_H_
38
39typedef struct __mcontext {
40 int mc_vers;
41 int mc_flags;
42#define _MC_FP_VALID 0x01
43#define _MC_AV_VALID 0x02
44#define _MC_VS_VALID 0x04
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#define _MC_VS_VALID 0x04
61 int mc_onstack; /* saved onstack flag */
62 int mc_len; /* sizeof(__mcontext) */
63 uint64_t mc_avec[32*2]; /* vector register file */
64 uint32_t mc_av[2];
65 uint32_t mc_frame[42];
66 uint64_t mc_fpreg[33];
67 uint64_t mc_vsxfpreg[32]; /* low-order half of VSR0-31 */
68} mcontext32_t __aligned(16);
69#endif
70
71/* GPRs and supervisor-level regs */
72#define mc_gpr mc_frame
73#define mc_lr mc_frame[32]
74#define mc_cr mc_frame[33]
75#define mc_xer mc_frame[34]
76#define mc_ctr mc_frame[35]
77#define mc_srr0 mc_frame[36]
78#define mc_srr1 mc_frame[37]
79#define mc_exc mc_frame[38]
80#define mc_dar mc_frame[39]
81#define mc_dsisr mc_frame[40]
82
83/* floating-point state */
84#define mc_fpscr mc_fpreg[32]
85
86/* altivec state */
87#define mc_vscr mc_av[0]
88#define mc_vrsave mc_av[1]
89
90#define _MC_VERSION 0x1
91#define _MC_VERSION_KSE 0xee /* partial ucontext for libpthread */
92
93#endif /* !_MACHINE_UCONTEXT_H_ */