1/* $NetBSD: pthread_md.S,v 1.1 2009/05/18 13:03:35 njoly Exp $ */ 2 3/*- 4 * Copyright (c) 2007, 2008, 2009 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Nick Hudson. 9 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32#include <machine/asm.h> 33 34 .align 2 35LEAF(pthread__ras_simple_lock_init, 1) 36 stl zero, 0(a0) 37 nop 38 RET 39END(pthread__ras_simple_lock_init) 40 41 .align 2 42LEAF(pthread__ras_simple_lock_try, 1) 43 ldiq t0, 1 44pthread__lock_ras_start: .globl pthread__lock_ras_start 45 ldl v0, 0(a0) 46 stl t0, 0(a0) 47pthread__lock_ras_end: .globl pthread__lock_ras_end 48 cmpeq v0, 0, v0 49 RET 50END(pthread__ras_simple_lock_try) 51 52 .align 2 53LEAF(pthread__ras_simple_unlock, 1) 54 stl zero, 0(a0) 55 nop 56 RET 57END(pthread__ras_simple_unlock) 58