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42 lines
1.2 KiB
ArmAsm
42 lines
1.2 KiB
ArmAsm
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/* Copyright (C) 2005 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <sys/asm.h>
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#include <sysdep.h>
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#define _ERRNO_H 1
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#include <bits/errno.h>
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#include <sgidefs.h>
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ENTRY (pthread_spin_trylock)
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.set push
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#if _MIPS_SIM == _ABIO32
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.set mips2
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#endif
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ll a2, 0(a0)
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li a1, 1
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bnez a2, 1f
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sc a1, 0(a0)
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beqz a1, 1f
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MIPS_SYNC
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.set pop
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li v0, 0
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ret
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1: li v0, EBUSY
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ret
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PSEUDO_END (pthread_spin_trylock)
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