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/* Copyright (C) 2005 Free Software Foundation, Inc.
This file is part of the GNU C Library.
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, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <sys/asm.h>
#include <sysdep.h>
#define _ERRNO_H 1
#include <bits/errno.h>
#include <sgidefs.h>
ENTRY (pthread_spin_trylock)
.set push
#if _MIPS_SIM == _ABIO32
.set mips2
#endif
ll a2, 0(a0)
li a1, 1
bnez a2, 1f
sc a1, 0(a0)
beqz a1, 1f
MIPS_SYNC
.set pop
li v0, 0
j ra
nop
1: li v0, EBUSY
j ra
nop
END (pthread_spin_trylock)
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