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58 lines
2.0 KiB
ArmAsm
58 lines
2.0 KiB
ArmAsm
/* $NetBSD: pthread_md.S,v 1.1 2009/05/18 13:03:35 njoly Exp $ */
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/*-
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* Copyright (c) 2007, 2008, 2009 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Nick Hudson.
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <machine/asm.h>
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.align 2
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LEAF(pthread__ras_simple_lock_init, 1)
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stl zero, 0(a0)
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nop
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RET
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END(pthread__ras_simple_lock_init)
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.align 2
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LEAF(pthread__ras_simple_lock_try, 1)
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ldiq t0, 1
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pthread__lock_ras_start: .globl pthread__lock_ras_start
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ldl v0, 0(a0)
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stl t0, 0(a0)
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pthread__lock_ras_end: .globl pthread__lock_ras_end
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cmpeq v0, 0, v0
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RET
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END(pthread__ras_simple_lock_try)
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.align 2
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LEAF(pthread__ras_simple_unlock, 1)
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stl zero, 0(a0)
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nop
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RET
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END(pthread__ras_simple_unlock)
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