1 /*- 2 * Copyright (c) 2013 The NetBSD Foundation, Inc. 3 * All rights reserved. 4 * 5 * This code is derived from software contributed to The NetBSD Foundation 6 * by Matt Thomas of 3am Software Foundry. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 18 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 19 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 20 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 21 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 25 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 26 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 27 * POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30 #include <sys/cdefs.h> 31 __RCSID("$NetBSD: atomic_simplelock.c,v 1.2 2013/08/16 01:47:41 matt Exp $"); 32 33 #include <sys/types.h> 34 35 #if !defined(_ARM_ARCH_T2) 36 /* 37 * We need to use the inlines so redefine out of the way. 38 */ 39 #define __cpu_simple_lock __arm_simple_lock 40 #define __cpu_simple_lock_try __arm_simple_lock_try 41 #include <arm/lock.h> 42 /* 43 * Now get rid of them. 44 */ 45 #undef __cpu_simple_lock 46 #undef __cpu_simple_lock_try 47 48 /* 49 * Since we overrode lock.h we have to provide these ourselves. 50 */ 51 #ifdef __LIBPTHREAD_SOURCE__ 52 __dso_hidden void __cpu_simple_lock(__cpu_simple_lock_t *); 53 __dso_hidden int __cpu_simple_lock_try(__cpu_simple_lock_t *); 54 #else 55 void __cpu_simple_lock(__cpu_simple_lock_t *); 56 int __cpu_simple_lock_try(__cpu_simple_lock_t *); 57 #endif 58 59 void 60 __cpu_simple_lock(__cpu_simple_lock_t *alp) 61 { 62 63 __arm_simple_lock(alp); 64 } 65 66 int 67 __cpu_simple_lock_try(__cpu_simple_lock_t *alp) 68 { 69 70 return __arm_simple_lock_try(alp); 71 } 72 #endif 73