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1/* Definition for thread-local data handling. ARM/Linux version.
2 Copyright (C) 2005-2022 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 _LINUX_ARM_TLS_H
20#define _LINUX_ARM_TLS_H 1
21
22/* Almost everything is OS-independent and common for all NPTL on ARM. */
23#include <sysdeps/arm/nptl/tls.h>
24
25#ifndef __ASSEMBLER__
26
27/* Get system call information. */
28# include <sysdep.h>
29
30/* Code to initially initialize the thread pointer. This might need
31 special attention since 'errno' is not yet available and if the
32 operation can cause a failure 'errno' must not be touched. */
33# define TLS_INIT_TP(tcbp) \
34 ({ long int result_var; \
35 result_var = INTERNAL_SYSCALL_CALL (set_tls, (tcbp)); \
36 INTERNAL_SYSCALL_ERROR_P (result_var) \
37 ? "unknown error" : NULL; })
38
39#endif /* __ASSEMBLER__ */
40
41#endif /* tls.h */
42

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source code of glibc/sysdeps/unix/sysv/linux/arm/tls.h