1 /* 2 * Copyright (c) 2011, 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 sun.jvm.hotspot.opto; 26 27 import java.util.*; 28 import java.io.PrintStream; 29 import sun.jvm.hotspot.debugger.*; 30 import sun.jvm.hotspot.runtime.*; 31 import sun.jvm.hotspot.oops.*; 32 import sun.jvm.hotspot.types.*; 33 34 public class PhaseCFG extends Phase { 35 static { 36 VM.registerVMInitializedObserver(new Observer() { 37 public void update(Observable o, Object data) { 38 initialize(VM.getVM().getTypeDataBase()); 39 } 40 }); 41 } 42 43 private static synchronized void initialize(TypeDataBase db) throws WrongTypeException { 44 Type type = db.lookupType("PhaseCFG"); 45 numBlocksField = new CIntField(type.getCIntegerField("_num_blocks"), 0); 46 blocksField = type.getAddressField("_blocks"); 47 bbsField = type.getAddressField("_bbs"); 48 brootField = type.getAddressField("_broot"); 49 } 50 51 private static CIntField numBlocksField; 52 private static AddressField blocksField; 53 private static AddressField bbsField; 54 private static AddressField brootField; 55 56 public PhaseCFG(Address addr) { 57 super(addr); 58 } 59 60 public void dump(PrintStream out) { 61 int addressSize = (int)VM.getVM().getAddressSize(); 62 int numBlocks = (int)numBlocksField.getValue(getAddress()); 63 Block_List blocks = new Block_List(getAddress().addOffsetTo(blocksField.getOffset())); 64 int offset = 0; 65 for (int i = 0; i < numBlocks; i++) { 66 blocks.at(i).dump(out); 67 } 68 } 69 }