1/* struct ucontext definition, C-SKY version.
 2   Copyright (C) 2018-2025 Free Software Foundation, Inc.
 3   This file is part of the GNU C Library.
 4
 5   The GNU C Library is free software; you can redistribute it and/or
 6   modify it under the terms of the GNU Lesser General Public
 7   License as published by the Free Software Foundation; either
 8   version 2.1 of the License, or (at your option) any later version.
 9
10   The GNU C Library is distributed in the hope that it will be useful,
11   but WITHOUT ANY WARRANTY; without even the implied warranty of
12   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13   Lesser General Public License for more details.
14
15   You should have received a copy of the GNU Lesser General Public
16   License along with the GNU C Library.  If not, see
17   <https://www.gnu.org/licenses/>.  */
18
19#ifndef _SYS_UCONTEXT_H
20#define _SYS_UCONTEXT_H	1
21
22#include <features.h>
23
24#include <bits/types/sigset_t.h>
25#include <bits/types/stack_t.h>
26
27typedef struct
28  {
29    unsigned long __tls;
30    unsigned long __lr;
31    unsigned long __pc;
32    unsigned long __sr;
33    unsigned long __usp;
34
35    /*
36     * a0, a1, a2, a3:
37     * abiv1: r2, r3, r4, r5
38     * abiv2: r0, r1, r2, r3
39     */
40
41    unsigned long __orig_a0;
42    unsigned long __a0;
43    unsigned long __a1;
44    unsigned long __a2;
45    unsigned long __a3;
46
47    /*
48     * ABIV2: r4 ~ r13
49     */
50    unsigned long __regs[10];
51
52    /* r16 ~ r30 */
53    unsigned long __exregs[15];
54
55    unsigned long __rhi;
56    unsigned long __rlo;
57    unsigned long __glibc_reserved;
58  } gregset_t;
59
60typedef struct
61  {
62    unsigned long __vr[64];
63    unsigned long __fcr;
64    unsigned long __fesr;
65    unsigned long __fid;
66    unsigned long __glibc_reserved;
67  } fpregset_t;
68
69/* Context to describe whole processor state.  */
70typedef struct
71  {
72    gregset_t __gregs;
73    fpregset_t __fpregs;
74  } mcontext_t;
75
76/* Userlevel context.  */
77typedef struct ucontext_t
78  {
79    unsigned long int __uc_flags;
80    struct ucontext_t *uc_link;
81    stack_t uc_stack;
82    mcontext_t uc_mcontext;
83    sigset_t uc_sigmask;
84  } ucontext_t;
85
86#undef __ctx
87
88
89#endif /* sys/ucontext.h */