Mercurial > hg > truffle
view agent/src/share/classes/sun/jvm/hotspot/ci/ciMethodData.java @ 4626:ee91624e54e6
Fix checkcast type in polymorphic inlining
author | Gilles Duboscq <duboscq@ssw.jku.at> |
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date | Fri, 17 Feb 2012 12:37:17 +0100 |
parents | f6f3bb0ee072 |
children | da91efe96a93 |
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/* * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, * CA 95054 USA or visit www.sun.com if you need additional information or * have any questions. * */ package sun.jvm.hotspot.ci; import java.io.*; import java.util.*; import sun.jvm.hotspot.debugger.*; import sun.jvm.hotspot.runtime.*; import sun.jvm.hotspot.oops.*; import sun.jvm.hotspot.types.*; public class ciMethodData extends ciObject { static { VM.registerVMInitializedObserver(new Observer() { public void update(Observable o, Object data) { initialize(VM.getVM().getTypeDataBase()); } }); } private static synchronized void initialize(TypeDataBase db) throws WrongTypeException { Type type = db.lookupType("ciMethodData"); origField = type.getAddressField("_orig"); currentMileageField = new CIntField(type.getCIntegerField("_current_mileage"), 0); argReturnedField = new CIntField(type.getCIntegerField("_arg_returned"), 0); argStackField = new CIntField(type.getCIntegerField("_arg_stack"), 0); argLocalField = new CIntField(type.getCIntegerField("_arg_local"), 0); eflagsField = new CIntField(type.getCIntegerField("_eflags"), 0); hintDiField = new CIntField(type.getCIntegerField("_hint_di"), 0); currentMileageField = new CIntField(type.getCIntegerField("_current_mileage"), 0); dataField = type.getAddressField("_data"); extraDataSizeField = new CIntField(type.getCIntegerField("_extra_data_size"), 0); dataSizeField = new CIntField(type.getCIntegerField("_data_size"), 0); stateField = new CIntField(type.getCIntegerField("_state"), 0); sizeofMethodDataOopDesc = (int)db.lookupType("methodDataOopDesc").getSize();; } private static AddressField origField; private static CIntField currentMileageField; private static CIntField argReturnedField; private static CIntField argStackField; private static CIntField argLocalField; private static CIntField eflagsField; private static CIntField hintDiField; private static AddressField dataField; private static CIntField extraDataSizeField; private static CIntField dataSizeField; private static CIntField stateField; private static int sizeofMethodDataOopDesc; public ciMethodData(Address addr) { super(addr); } private byte[] fetchDataAt(Address base, long size) { byte[] result = new byte[(int)size]; for (int i = 0; i < size; i++) { result[i] = base.getJByteAt(i); } return result; } public byte[] orig() { // fetch the orig methodDataOopDesc data between header and dataSize Address base = getAddress().addOffsetTo(origField.getOffset()); byte[] result = new byte[MethodData.sizeofMethodDataOopDesc]; for (int i = 0; i < MethodData.sizeofMethodDataOopDesc; i++) { result[i] = base.getJByteAt(i); } return result; } public long[] data() { // Read the data as an array of intptr_t elements Address base = dataField.getValue(getAddress()); int elements = dataSize() / MethodData.cellSize; long[] result = new long[elements]; for (int i = 0; i < elements; i++) { Address value = base.getAddressAt(i * MethodData.cellSize); if (value != null) { result[i] = value.minus(null); } } return result; } int dataSize() { return (int)dataSizeField.getValue(getAddress()); } int state() { return (int)stateField.getValue(getAddress()); } int currentMileage() { return (int)currentMileageField.getValue(getAddress()); } boolean outOfBounds(int dataIndex) { return dataIndex >= dataSize(); } ProfileData dataAt(int dataIndex) { if (outOfBounds(dataIndex)) { return null; } DataLayout dataLayout = new DataLayout(dataField.getValue(getAddress()), dataIndex); switch (dataLayout.tag()) { case DataLayout.noTag: default: throw new InternalError(); case DataLayout.bitDataTag: return new BitData(dataLayout); case DataLayout.counterDataTag: return new CounterData(dataLayout); case DataLayout.jumpDataTag: return new JumpData(dataLayout); case DataLayout.receiverTypeDataTag: return new ciReceiverTypeData(dataLayout); case DataLayout.virtualCallDataTag: return new ciVirtualCallData(dataLayout); case DataLayout.retDataTag: return new RetData(dataLayout); case DataLayout.branchDataTag: return new BranchData(dataLayout); case DataLayout.multiBranchDataTag: return new MultiBranchData(dataLayout); } } int dpToDi(int dp) { return dp; } int firstDi() { return 0; } ProfileData firstData() { return dataAt(firstDi()); } ProfileData nextData(ProfileData current) { int currentIndex = dpToDi(current.dp()); int nextIndex = currentIndex + current.sizeInBytes(); return dataAt(nextIndex); } boolean isValid(ProfileData current) { return current != null; } public void printDataOn(PrintStream st) { ProfileData data = firstData(); for ( ; isValid(data); data = nextData(data)) { st.print(dpToDi(data.dp())); st.print(" "); // st->fillTo(6); data.printDataOn(st); } } }