1/* Copyright (C) 2012-2022 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#include <sysdep.h>
19#include <shlib-compat.h>
20
21	.text
22ENTRY(__pthread_spin_lock)
231:	ldstub		[%o0], %g1
24	brnz,pn		%g1, 2f
25	 membar		#StoreLoad | #StoreStore
26	retl
27	 mov		0, %o0
282:	ldub		[%o0], %g1
29	brnz,pt		%g1, 2b
30	 membar		#LoadLoad
31	ba,a,pt		%xcc, 1b
32END(__pthread_spin_lock)
33versioned_symbol (libc, __pthread_spin_lock, pthread_spin_lock, GLIBC_2_34)
34
35#if OTHER_SHLIB_COMPAT (libpthread, GLIBC_2_2, GLIBC_2_34)
36compat_symbol (libpthread, __pthread_spin_lock, pthread_spin_lock, GLIBC_2_2)
37#endif
38