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