1/* Copyright (C) 2002-2021 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
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#include <sysdep.h>
20#include <shlib-compat.h>
21
22ENTRY(__pthread_spin_unlock)
23 movl $1, (%rdi)
24 xorl %eax, %eax
25 retq
26END(__pthread_spin_unlock)
27versioned_symbol (libc, __pthread_spin_unlock, pthread_spin_unlock, GLIBC_2_34)
28/* The implementation of pthread_spin_init is identical. */
29versioned_symbol (libc, __pthread_spin_unlock, pthread_spin_init, GLIBC_2_34)
30
31#if OTHER_SHLIB_COMPAT (libpthread, GLIBC_2_2, GLIBC_2_34)
32compat_symbol (libpthread, __pthread_spin_unlock, pthread_spin_unlock,
33 GLIBC_2_2)
34compat_symbol (libpthread, __pthread_spin_unlock, pthread_spin_init, GLIBC_2_2)
35#endif
36