1 /* 2 * Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 package compiler.testlibrary.rtm; 26 27 import jdk.internal.misc.Unsafe; 28 import jdk.test.lib.unsafe.UnsafeHelper; 29 30 /** 31 * Current RTM locking implementation force transaction abort 32 * before native method call by explicit xabort(0) call. 33 */ 34 class XAbortProvoker extends AbortProvoker { 35 // Following field have to be static in order to avoid escape analysis. 36 @SuppressWarnings("UnsuedDeclaration") 37 private static int field = 0; 38 private static final Unsafe UNSAFE = UnsafeHelper.getUnsafe(); 39 40 public XAbortProvoker() { 41 this(new Object()); 42 } 43 44 public XAbortProvoker(Object monitor) { 45 super(monitor); 46 } 47 48 @Override 49 public void forceAbort() { 50 synchronized(monitor) { 51 XAbortProvoker.field = UNSAFE.addressSize(); 52 } 53 } 54 55 @Override 56 public String[] getMethodsToCompileNames() { 57 return new String[] { 58 getMethodWithLockName(), 59 Unsafe.class.getName() + "::addressSize" 60 }; 61 } 62 }