1/* Copyright (C) 2003 Free Software Foundation, Inc.
2   This file is part of the GNU C Library.
3   Contributed by Richard Henderson  <rth@twiddle.net>, 2003.
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   <http://www.gnu.org/licenses/>.  */
18
19
20	.text
21	.align	4
22
23	.globl	pthread_spin_lock
24	.ent	pthread_spin_lock
25pthread_spin_lock:
26	.frame	$sp, 0, $26, 0
27	.prologue 0
28
290:	ldl_l	$1, 0($16)
30	lda	$2, 1
31	lda	$0, 0
32	bne	$1, 1f
33
34	stl_c	$2, 0($16)
35	beq	$2, 1f
36	mb
37	ret
38
391:	ldl	$1, 0($16)
40	bne	$1, 1b
41	unop
42	br	0b
43
44	.end	pthread_spin_lock
45