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comparison agent/src/share/classes/sun/jvm/hotspot/ci/ciMethodData.java @ 6725:da91efe96a93

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6964458: Reimplement class meta-data storage to use native memory Summary: Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland Contributed-by: jmasa <jon.masamitsu@oracle.com>, stefank <stefan.karlsson@oracle.com>, mgerdin <mikael.gerdin@oracle.com>, never <tom.rodriguez@oracle.com>
author coleenp
date Sat, 01 Sep 2012 13:25:18 -0400
parents f6f3bb0ee072
children bd7a7ce2e264
comparison
equal deleted inserted replaced
6724:36d1d483d5d6 6725:da91efe96a93
1 /* 1 /*
2 * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved. 2 * Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 * 4 *
5 * This code is free software; you can redistribute it and/or modify it 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 6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. 7 * published by the Free Software Foundation.
29 import sun.jvm.hotspot.debugger.*; 29 import sun.jvm.hotspot.debugger.*;
30 import sun.jvm.hotspot.runtime.*; 30 import sun.jvm.hotspot.runtime.*;
31 import sun.jvm.hotspot.oops.*; 31 import sun.jvm.hotspot.oops.*;
32 import sun.jvm.hotspot.types.*; 32 import sun.jvm.hotspot.types.*;
33 33
34 public class ciMethodData extends ciObject { 34 public class ciMethodData extends ciMetadata {
35 static { 35 static {
36 VM.registerVMInitializedObserver(new Observer() { 36 VM.registerVMInitializedObserver(new Observer() {
37 public void update(Observable o, Object data) { 37 public void update(Observable o, Object data) {
38 initialize(VM.getVM().getTypeDataBase()); 38 initialize(VM.getVM().getTypeDataBase());
39 } 39 }
52 currentMileageField = new CIntField(type.getCIntegerField("_current_mileage"), 0); 52 currentMileageField = new CIntField(type.getCIntegerField("_current_mileage"), 0);
53 dataField = type.getAddressField("_data"); 53 dataField = type.getAddressField("_data");
54 extraDataSizeField = new CIntField(type.getCIntegerField("_extra_data_size"), 0); 54 extraDataSizeField = new CIntField(type.getCIntegerField("_extra_data_size"), 0);
55 dataSizeField = new CIntField(type.getCIntegerField("_data_size"), 0); 55 dataSizeField = new CIntField(type.getCIntegerField("_data_size"), 0);
56 stateField = new CIntField(type.getCIntegerField("_state"), 0); 56 stateField = new CIntField(type.getCIntegerField("_state"), 0);
57 sizeofMethodDataOopDesc = (int)db.lookupType("methodDataOopDesc").getSize();; 57 sizeofMethodDataOopDesc = (int)db.lookupType("MethodData").getSize();;
58 } 58 }
59 59
60 private static AddressField origField; 60 private static AddressField origField;
61 private static CIntField currentMileageField; 61 private static CIntField currentMileageField;
62 private static CIntField argReturnedField; 62 private static CIntField argReturnedField;
81 } 81 }
82 return result; 82 return result;
83 } 83 }
84 84
85 public byte[] orig() { 85 public byte[] orig() {
86 // fetch the orig methodDataOopDesc data between header and dataSize 86 // fetch the orig MethodData data between header and dataSize
87 Address base = getAddress().addOffsetTo(origField.getOffset()); 87 Address base = getAddress().addOffsetTo(origField.getOffset());
88 byte[] result = new byte[MethodData.sizeofMethodDataOopDesc]; 88 byte[] result = new byte[MethodData.sizeofMethodDataOopDesc];
89 for (int i = 0; i < MethodData.sizeofMethodDataOopDesc; i++) { 89 for (int i = 0; i < MethodData.sizeofMethodDataOopDesc; i++) {
90 result[i] = base.getJByteAt(i); 90 result[i] = base.getJByteAt(i);
91 } 91 }