1/* struct ucontext definition.
 2   Copyright (C) 2022-2025 Free Software Foundation, Inc.
 3
 4   This file is part of the GNU C Library.
 5
 6   The GNU C Library is free software; you can redistribute it and/or
 7   modify it under the terms of the GNU Lesser General Public
 8   License as published by the Free Software Foundation; either
 9   version 2.1 of the License, or (at your option) any later version.
10
11   The GNU C Library is distributed in the hope that it will be useful,
12   but WITHOUT ANY WARRANTY; without even the implied warranty of
13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14   Lesser General Public License for more details.
15
16   You should have received a copy of the GNU Lesser General Public
17   License along with the GNU C Library.  If not, see
18   <https://www.gnu.org/licenses/>.  */
19
20/* Don't rely on this, the interface is currently messed up and may need to
21   be broken to be fixed.  */
22#ifndef _SYS_UCONTEXT_H
23#define _SYS_UCONTEXT_H 1
24
25#include <features.h>
26
27#include <bits/types/sigset_t.h>
28#include <bits/types/stack_t.h>
29
30#ifdef __USE_MISC
31#define LARCH_NGREG 32
32
33#define LARCH_REG_RA 1
34#define LARCH_REG_SP 3
35#define LARCH_REG_S0 23
36#define LARCH_REG_S1 24
37#define LARCH_REG_A0 4
38#define LARCH_REG_S2 25
39#define LARCH_REG_NARGS 8
40
41typedef unsigned long int greg_t;
42/* Container for all general registers.  */
43typedef greg_t gregset_t[32];
44#endif
45
46typedef struct mcontext_t
47{
48  unsigned long long __pc;
49  unsigned long long __gregs[32];
50  unsigned int __flags;
51  unsigned long long __extcontext[0] __attribute__((__aligned__(16)));
52} mcontext_t;
53
54/* Userlevel context.  */
55typedef struct ucontext_t
56{
57  unsigned long int __uc_flags;
58  struct ucontext_t *uc_link;
59  stack_t uc_stack;
60  sigset_t uc_sigmask;
61  mcontext_t uc_mcontext;
62} ucontext_t;
63
64#endif /* sys/ucontext.h */