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1/* Copyright (C) 2003-2019 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

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