1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
|
/* $NetBSD: mcontext.h,v 1.4 2003/10/13 18:38:34 fvdl Exp $ */
/*-
* Copyright (c) 1999 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Klaus Klein.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _AMD64_MCONTEXT_H_
#define _AMD64_MCONTEXT_H_
/*
* General register state
*/
#define _NGREG 26
typedef unsigned long __greg_t;
typedef __greg_t __gregset_t[_NGREG];
/*
* This is laid out to match trapframe and intrframe (see <machine/frame.h>).
* Hence, memcpy between gregs and a trapframe is possible.
*/
#define _REG_RDI 0
#define _REG_RSI 1
#define _REG_RDX 2
#define _REG_RCX 3
#define _REG_R8 4
#define _REG_R9 5
#define _REG_R10 6
#define _REG_R11 7
#define _REG_R12 8
#define _REG_R13 9
#define _REG_R14 10
#define _REG_R15 11
#define _REG_RBP 12
#define _REG_RBX 13
#define _REG_RAX 14
#define _REG_GS 15
#define _REG_FS 16
#define _REG_ES 17
#define _REG_DS 18
#define _REG_TRAPNO 19
#define _REG_ERR 20
#define _REG_RIP 21
#define _REG_CS 22
#define _REG_RFL 23
#define _REG_URSP 24
#define _REG_SS 25
/*
* Floating point register state
*/
typedef char __fpregset_t[512];
/*
* The padding below is to make __fpregs have a 16-byte aligned offset
* within ucontext_t.
*/
typedef struct {
__gregset_t __gregs;
long __pad;
__fpregset_t __fpregs;
} mcontext_t;
#define _UC_UCONTEXT_ALIGN (~0xf)
#define _UC_MACHINE_SP(uc) ((uc)->uc_mcontext.__gregs[_REG_URSP])
#define _UC_MACHINE_PC(uc) ((uc)->uc_mcontext.__gregs[_REG_RIP])
#define _UC_MACHINE_INTRV(uc) ((uc)->uc_mcontext.__gregs[_REG_RAX])
#define _UC_MACHINE_SET_PC(uc, pc) _UC_MACHINE_PC(uc) = (pc)
/*
* mcontext extensions to handle signal delivery.
*/
#define _UC_SETSTACK 0x00010000
#define _UC_CLRSTACK 0x00020000
#ifdef _KERNEL
/*
* 32bit context definitions.
*/
#define _NGREG32 19
typedef unsigned int __greg32_t;
typedef __greg32_t __gregset32_t[_NGREG32];
#define _REG32_GS 0
#define _REG32_FS 1
#define _REG32_ES 2
#define _REG32_DS 3
#define _REG32_EDI 4
#define _REG32_ESI 5
#define _REG32_EBP 6
#define _REG32_ESP 7
#define _REG32_EBX 8
#define _REG32_EDX 9
#define _REG32_ECX 10
#define _REG32_EAX 11
#define _REG32_TRAPNO 12
#define _REG32_ERR 13
#define _REG32_EIP 14
#define _REG32_CS 15
#define _REG32_EFL 16
#define _REG32_UESP 17
#define _REG32_SS 18
/*
* Floating point register state
*/
typedef struct fxsave64 __fpregset32_t;
typedef struct {
__gregset32_t __gregs;
__fpregset32_t __fpregs;
} mcontext32_t;
#define _UC_MACHINE_PAD32 5
struct trapframe;
int check_mcontext(const mcontext_t *, struct trapframe *);
#endif /* _KERNEL */
#endif /* !_AMD64_MCONTEXT_H_ */
|