1/* 2 * Copyright (c) 2014, 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 25package sun.jvm.hotspot.oops; 26 27import java.io.*; 28import java.util.*; 29import sun.jvm.hotspot.debugger.*; 30import sun.jvm.hotspot.runtime.*; 31import sun.jvm.hotspot.types.*; 32import sun.jvm.hotspot.utilities.*; 33 34// SpeculativeTrapData 35// 36// A SpeculativeTrapData is used to record traps due to type 37// speculation. It records the root of the compilation. 38public class SpeculativeTrapData<K, M> extends ProfileData { 39 static final int speculativeTrapMethod = 0; 40 static final int speculativeTrapCellCount = 1; 41 final MethodDataInterface<K, M> methodData; 42 43 public SpeculativeTrapData(MethodDataInterface<K,M> methodData, DataLayout layout) { 44 super(layout); 45 this.methodData = methodData; 46 } 47 48 static int staticCellCount() { 49 return speculativeTrapCellCount; 50 } 51 52 public int cellCount() { 53 return staticCellCount(); 54 } 55 56 public M method() { 57 return methodData.getMethodAtAddress(addressAt(speculativeTrapMethod)); 58 } 59 60 static public int methodIndex() { 61 return speculativeTrapMethod; 62 } 63 64 public void printDataOn(PrintStream st) { 65 printShared(st, "SpeculativeTrapData"); 66 tab(st); 67 methodData.printMethodValueOn(method(), st); 68 st.println(); 69 } 70} 71