mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-22 21:10:07 +00:00
46 lines
1.2 KiB
ArmAsm
46 lines
1.2 KiB
ArmAsm
/* Copyright (C) 2003-2020 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by Richard Henderson <rth@twiddle.net>, 2003.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library. If not, see
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
|
|
#define _ERRNO_H 1
|
|
#include <bits/errno.h>
|
|
|
|
.text
|
|
.align 4
|
|
|
|
.globl pthread_spin_trylock
|
|
.ent pthread_spin_trylock
|
|
pthread_spin_trylock:
|
|
.frame $sp, 0, $26, 0
|
|
.prologue 0
|
|
|
|
0: ldl_l $1, 0($16)
|
|
lda $2, 1
|
|
lda $0, EBUSY
|
|
bne $1, 1f
|
|
|
|
stl_c $2, 0($16)
|
|
beq $2, 2f
|
|
mb
|
|
lda $0, 0
|
|
|
|
1: ret
|
|
2: br 0b
|
|
|
|
.end pthread_spin_trylock
|