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1 | /* Copyright (C) 1999-2022 Free Software Foundation, Inc. |
---|---|
2 | This file is part of the GNU C Library. |
3 | |
4 | The GNU C Library is free software; you can redistribute it and/or |
5 | modify it under the terms of the GNU Lesser General Public |
6 | License as published by the Free Software Foundation; either |
7 | version 2.1 of the License, or (at your option) any later version. |
8 | |
9 | The GNU C Library is distributed in the hope that it will be useful, |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
12 | Lesser General Public License for more details. |
13 | |
14 | You should have received a copy of the GNU Lesser General Public |
15 | License along with the GNU C Library; if not, see |
16 | <https://www.gnu.org/licenses/>. */ |
17 | |
18 | /* Where is System V/SH ABI? */ |
19 | |
20 | #ifndef _SYS_UCONTEXT_H |
21 | #define _SYS_UCONTEXT_H 1 |
22 | |
23 | #include <features.h> |
24 | |
25 | #include <bits/types/sigset_t.h> |
26 | #include <bits/types/stack_t.h> |
27 | |
28 | |
29 | typedef int greg_t; |
30 | |
31 | /* Number of general registers. */ |
32 | #define __NGREG 16 |
33 | #ifdef __USE_MISC |
34 | # define NGREG __NGREG |
35 | #endif |
36 | |
37 | /* Container for all general registers. */ |
38 | typedef greg_t gregset_t[__NGREG]; |
39 | |
40 | #ifdef __USE_MISC |
41 | /* Number of each register is the `gregset_t' array. */ |
42 | enum |
43 | { |
44 | REG_R0 = 0, |
45 | # define REG_R0 REG_R0 |
46 | REG_R1 = 1, |
47 | # define REG_R1 REG_R1 |
48 | REG_R2 = 2, |
49 | # define REG_R2 REG_R2 |
50 | REG_R3 = 3, |
51 | # define REG_R3 REG_R3 |
52 | REG_R4 = 4, |
53 | # define REG_R4 REG_R4 |
54 | REG_R5 = 5, |
55 | # define REG_R5 REG_R5 |
56 | REG_R6 = 6, |
57 | # define REG_R6 REG_R6 |
58 | REG_R7 = 7, |
59 | # define REG_R7 REG_R7 |
60 | REG_R8 = 8, |
61 | # define REG_R8 REG_R8 |
62 | REG_R9 = 9, |
63 | # define REG_R9 REG_R9 |
64 | REG_R10 = 10, |
65 | # define REG_R10 REG_R10 |
66 | REG_R11 = 11, |
67 | # define REG_R11 REG_R11 |
68 | REG_R12 = 12, |
69 | # define REG_R12 REG_R12 |
70 | REG_R13 = 13, |
71 | # define REG_R13 REG_R13 |
72 | REG_R14 = 14, |
73 | # define REG_R14 REG_R14 |
74 | REG_R15 = 15, |
75 | # define REG_R15 REG_R15 |
76 | }; |
77 | #endif |
78 | |
79 | typedef int freg_t; |
80 | |
81 | /* Number of FPU registers. */ |
82 | #define __NFPREG 16 |
83 | #ifdef __USE_MISC |
84 | # define NFPREG __NFPREG |
85 | #endif |
86 | |
87 | /* Structure to describe FPU registers. */ |
88 | typedef freg_t fpregset_t[__NFPREG]; |
89 | |
90 | #ifdef __USE_MISC |
91 | # define __ctx(fld) fld |
92 | #else |
93 | # define __ctx(fld) __ ## fld |
94 | #endif |
95 | |
96 | /* Context to describe whole processor state. */ |
97 | typedef struct |
98 | { |
99 | unsigned int __ctx(oldmask); |
100 | gregset_t __ctx(gregs); |
101 | unsigned int __ctx(pc); |
102 | unsigned int __ctx(pr); |
103 | unsigned int __ctx(sr); |
104 | unsigned int __ctx(gbr); |
105 | unsigned int __ctx(mach); |
106 | unsigned int __ctx(macl); |
107 | fpregset_t __ctx(fpregs); |
108 | fpregset_t __ctx(xfpregs); |
109 | unsigned int __ctx(fpscr); |
110 | unsigned int __ctx(fpul); |
111 | unsigned int __ctx(ownedfp); |
112 | } mcontext_t; |
113 | |
114 | /* Userlevel context. */ |
115 | typedef struct ucontext_t |
116 | { |
117 | unsigned long int __ctx(uc_flags); |
118 | struct ucontext_t *uc_link; |
119 | stack_t uc_stack; |
120 | mcontext_t uc_mcontext; |
121 | sigset_t uc_sigmask; |
122 | } ucontext_t; |
123 | |
124 | #undef __ctx |
125 | |
126 | #endif /* sys/ucontext.h */ |
127 |
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