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/*
* Copyright (C) 2017 Hangzhou C-SKY Microsystems co.,ltd.
*
* Licensed under the LGPL v2.1 or later, see the file COPYING.LIB
* in this tarball.
*/
#define _ERRNO_H 1
#include <bits/errno.h>
#include <sysdep.h>
.text
ENTRY (pthread_spin_trylock)
mov a2, a0
movi a0, 0
movi a1, 1
trap 2 // trap 2 use to cmpxchg
cmpnei a0, 0
bf 1f
movi a0, EBUSY
1:
jmp r15
END (pthread_spin_trylock)
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