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2b778ceb | 1 | /* Copyright (C) 2003-2021 Free Software Foundation, Inc. |
a54e8d33 UD |
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 | |
59ba27a6 | 15 | License along with the GNU C Library; if not, see |
5a82c748 | 16 | <https://www.gnu.org/licenses/>. */ |
a54e8d33 | 17 | |
fcb78a55 | 18 | #include <errno.h> |
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19 | |
20 | .globl pthread_spin_trylock | |
21 | .type pthread_spin_trylock,@function | |
22 | .align 5 | |
23 | pthread_spin_trylock: | |
24 | tas.b @r4 | |
25 | bf/s 1f | |
326132db | 26 | mov #EBUSY, r0 |
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27 | mov #0, r0 |
28 | 1: | |
29 | rts | |
30 | nop | |
31 | .size pthread_spin_trylock,.-pthread_spin_trylock |