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annotate agent/src/share/classes/sun/jvm/hotspot/interpreter/InterpreterCodelet.java @ 2042:0a8e0d4345b3 hs20-b05 jdk7-b124
7010068: Update all 2010 Oracle-changed OpenJDK files to have the proper copyright dates - first pass
Summary: Update the copyright to be 2010 on all changed files in OpenJDK
Reviewed-by: jcoomes
| author | trims |
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| date | Mon, 03 Jan 2011 15:30:05 -0800 |
| parents | c18cbe5936b8 |
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| rev | line source |
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| 0 | 1 /* |
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2 * Copyright (c) 2000, 2004, Oracle and/or its affiliates. All rights reserved. |
| 0 | 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 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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6941466: Oracle rebranding changes for Hotspot repositories
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 25 package sun.jvm.hotspot.interpreter; | |
| 26 | |
| 27 import java.io.*; | |
| 28 import java.util.*; | |
| 29 | |
| 30 import sun.jvm.hotspot.code.*; | |
| 31 import sun.jvm.hotspot.debugger.*; | |
| 32 import sun.jvm.hotspot.runtime.*; | |
| 33 import sun.jvm.hotspot.types.*; | |
| 34 import sun.jvm.hotspot.utilities.*; | |
| 35 | |
| 36 /** An InterpreterCodelet is a piece of interpreter code. All | |
| 37 interpreter code is generated into little codelets which contain | |
| 38 extra information for debugging and printing purposes. */ | |
| 39 | |
| 40 public class InterpreterCodelet extends Stub { | |
| 41 private static long instanceSize; | |
| 42 private static CIntegerField sizeField; // the size in bytes | |
| 43 private static AddressField descriptionField; // a description of the codelet, for debugging & printing | |
| 44 private static CIntegerField bytecodeField; // associated bytecode if any | |
| 45 | |
| 46 static { | |
| 47 VM.registerVMInitializedObserver(new Observer() { | |
| 48 public void update(Observable o, Object data) { | |
| 49 initialize(VM.getVM().getTypeDataBase()); | |
| 50 } | |
| 51 }); | |
| 52 } | |
| 53 | |
| 54 private static synchronized void initialize(TypeDataBase db) { | |
| 55 Type type = db.lookupType("InterpreterCodelet"); | |
| 56 | |
| 57 sizeField = type.getCIntegerField("_size"); | |
| 58 descriptionField = type.getAddressField("_description"); | |
| 59 bytecodeField = type.getCIntegerField("_bytecode"); | |
| 60 | |
| 61 instanceSize = type.getSize(); | |
| 62 } | |
| 63 | |
| 64 public InterpreterCodelet(Address addr) { | |
| 65 super(addr); | |
| 66 } | |
| 67 | |
| 68 public long getSize() { | |
| 69 return sizeField.getValue(addr); | |
| 70 } | |
| 71 | |
| 72 public Address codeBegin() { | |
| 73 return addr.addOffsetTo(instanceSize); | |
| 74 } | |
| 75 | |
| 76 public Address codeEnd() { | |
| 77 return addr.addOffsetTo(getSize()); | |
| 78 } | |
| 79 | |
| 80 public long codeSize() { | |
| 81 return codeEnd().minus(codeBegin()); | |
| 82 } | |
| 83 | |
| 84 public String getDescription() { | |
| 85 return CStringUtilities.getString(descriptionField.getValue(addr)); | |
| 86 } | |
| 87 | |
| 88 public void verify() { | |
| 89 } | |
| 90 | |
| 91 public void printOn(PrintStream tty) { | |
| 92 String desc = getDescription(); | |
| 93 if (desc != null) { | |
| 94 tty.print(desc); | |
| 95 } | |
| 96 // FIXME: add printing of bytecode | |
| 97 tty.println(" [" + codeBegin() + ", " + codeEnd() + ") " + | |
| 98 codeSize() + " bytes "); | |
| 99 // FIXME: add disassembly | |
| 100 } | |
| 101 } |