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1/* Copyright (C) 1996-2022 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#ifndef _BITS_SIGCONTEXT_H
19#define _BITS_SIGCONTEXT_H 1
20
21#if !defined _SIGNAL_H && !defined _SYS_UCONTEXT_H
22# error "Never use <bits/sigcontext.h> directly; include <signal.h> instead."
23#endif
24
25#ifndef sigcontext_struct
26/* Kernel headers before 2.1.1 define a struct sigcontext_struct, but
27 we need sigcontext. */
28# define sigcontext_struct sigcontext
29
30# include <asm/sigcontext.h>
31
32/* The Linux kernel headers redefine NULL wrongly, so cleanup afterwards. */
33# define __need_NULL
34# include <stddef.h>
35#endif
36
37#endif /* bits/sigcontext.h */
38

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source code of glibc/sysdeps/unix/sysv/linux/bits/sigcontext.h