projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| 04277e02 | 1 | /* Copyright (C) 2003-2019 Free Software Foundation, Inc. |
| 81b6201a UD |
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 | |
| ab84e3ff PE |
16 | License along with the GNU C Library. If not, see |
| 17 | <http://www.gnu.org/licenses/>. */ | |
| 81b6201a UD |
18 | |
| 19 | ||
| 20 | .text | |
| 21 | .align 4 | |
| 22 | ||
| 23 | .globl pthread_spin_lock | |
| 24 | .ent pthread_spin_lock | |
| 25 | pthread_spin_lock: | |
| 26 | .frame $sp, 0, $26, 0 | |
| 27 | .prologue 0 | |
| 28 | ||
| 29 | 0: 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 | ||
| 39 | 1: ldl $1, 0($16) | |
| 40 | bne $1, 1b | |
| 41 | unop | |
| 42 | br 0b | |
| 43 | ||
| 44 | .end pthread_spin_lock |