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d614a753 | 1 | /* Copyright (C) 2012-2020 Free Software Foundation, Inc. |
cd2fbe58 | 2 | This file is part of the GNU C Library. |
cd2fbe58 UD |
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 | |
59ba27a6 | 15 | License along with the GNU C Library; if not, see |
5a82c748 | 16 | <https://www.gnu.org/licenses/>. */ |
cd2fbe58 | 17 | |
e2dbf201 DM |
18 | #include <sysdep.h> |
19 | #include <pthread-errnos.h> | |
cd2fbe58 | 20 | |
e2dbf201 DM |
21 | .text |
22 | ENTRY(pthread_spin_trylock) | |
23 | ldstub [%o0], %o0 | |
24 | membar #StoreLoad | #StoreStore | |
25 | retl | |
26 | movrnz %o0, EBUSY, %o0 | |
27 | END(pthread_spin_trylock) |