| 1 | /* Copyright (C) 2003-2022 Free Software Foundation, Inc. |
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| 2 | This file is part of the GNU C Library. |
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| 3 | |
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| 4 | The GNU C Library is free software; you can redistribute it and/or |
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| 5 | modify it under the terms of the GNU Lesser General Public |
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| 6 | License as published by the Free Software Foundation; either |
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| 7 | version 2.1 of the License, or (at your option) any later version. |
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| 8 | |
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| 9 | The GNU C Library is distributed in the hope that it will be useful, |
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| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 12 | Lesser General Public License for more details. |
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| 13 | |
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| 14 | You should have received a copy of the GNU Lesser General Public |
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| 15 | License along with the GNU C Library. If not, see |
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| 16 | <https://www.gnu.org/licenses/>. */ |
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| 17 | |
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| 18 | #include <shlib-compat.h> |
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| 19 | |
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| 20 | #define _ERRNO_H 1 |
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| 21 | #include <bits/errno.h> |
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| 22 | |
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| 23 | .text |
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| 24 | .align 4 |
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| 25 | |
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| 26 | .globl __pthread_spin_trylock |
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| 27 | .ent __pthread_spin_trylock |
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| 28 | __pthread_spin_trylock: |
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| 29 | .frame $sp, 0, $26, 0 |
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| 30 | .prologue 0 |
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| 31 | |
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| 32 | 0: ldl_l $1, 0($16) |
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| 33 | lda $2, 1 |
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| 34 | lda $0, EBUSY |
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| 35 | bne $1, 1f |
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| 36 | |
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| 37 | stl_c $2, 0($16) |
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| 38 | beq $2, 2f |
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| 39 | mb |
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| 40 | lda $0, 0 |
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| 41 | |
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| 42 | 1: ret |
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| 43 | 2: br 0b |
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| 44 | |
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| 45 | .end __pthread_spin_trylock |
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| 46 | versioned_symbol (libc, __pthread_spin_trylock, pthread_spin_trylock, |
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| 47 | GLIBC_2_34) |
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| 48 | |
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| 49 | #if OTHER_SHLIB_COMPAT (libpthread, GLIBC_2_2, GLIBC_2_34) |
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| 50 | compat_symbol (libpthread, __pthread_spin_trylock, pthread_spin_trylock, |
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| 51 | GLIBC_2_2) |
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| 52 | #endif |
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| 53 | |
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