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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
29typedef 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. */
38typedef greg_t gregset_t[__NGREG];
39
40#ifdef __USE_MISC
41/* Number of each register is the `gregset_t' array. */
42enum
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
79typedef 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. */
88typedef 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. */
97typedef 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. */
115typedef 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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source code of glibc/sysdeps/unix/sysv/linux/sh/sys/ucontext.h