Mercurial > hg > truffle
comparison agent/src/share/classes/sun/jvm/hotspot/oops/ArrayKlass.java @ 6725:da91efe96a93
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 |
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date | Sat, 01 Sep 2012 13:25:18 -0400 |
parents | c18cbe5936b8 |
children | d8ce2825b193 |
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6724:36d1d483d5d6 | 6725:da91efe96a93 |
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1 /* | 1 /* |
2 * Copyright (c) 2000, 2007, Oracle and/or its affiliates. All rights reserved. | 2 * Copyright (c) 2000, 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. |
43 }); | 43 }); |
44 } | 44 } |
45 | 45 |
46 private static synchronized void initialize(TypeDataBase db) throws WrongTypeException { | 46 private static synchronized void initialize(TypeDataBase db) throws WrongTypeException { |
47 Type type = db.lookupType("arrayKlass"); | 47 Type type = db.lookupType("arrayKlass"); |
48 dimension = new CIntField(type.getCIntegerField("_dimension"), Oop.getHeaderSize()); | 48 dimension = new CIntField(type.getCIntegerField("_dimension"), 0); |
49 higherDimension = new OopField(type.getOopField("_higher_dimension"), Oop.getHeaderSize()); | 49 higherDimension = new MetadataField(type.getAddressField("_higher_dimension"), 0); |
50 lowerDimension = new OopField(type.getOopField("_lower_dimension"), Oop.getHeaderSize()); | 50 lowerDimension = new MetadataField(type.getAddressField("_lower_dimension"), 0); |
51 vtableLen = new CIntField(type.getCIntegerField("_vtable_len"), Oop.getHeaderSize()); | 51 vtableLen = new CIntField(type.getCIntegerField("_vtable_len"), 0); |
52 allocSize = new CIntField(type.getCIntegerField("_alloc_size"), Oop.getHeaderSize()); | 52 allocSize = new CIntField(type.getCIntegerField("_alloc_size"), 0); |
53 componentMirror = new OopField(type.getOopField("_component_mirror"), Oop.getHeaderSize()); | 53 componentMirror = new OopField(type.getOopField("_component_mirror"), 0); |
54 javaLangCloneableName = null; | 54 javaLangCloneableName = null; |
55 javaLangObjectName = null; | 55 javaLangObjectName = null; |
56 javaIoSerializableName = null; | 56 javaIoSerializableName = null; |
57 } | 57 } |
58 | 58 |
59 ArrayKlass(OopHandle handle, ObjectHeap heap) { | 59 public ArrayKlass(Address addr) { |
60 super(handle, heap); | 60 super(addr); |
61 } | 61 } |
62 | 62 |
63 private static CIntField dimension; | 63 private static CIntField dimension; |
64 private static OopField higherDimension; | 64 private static MetadataField higherDimension; |
65 private static OopField lowerDimension; | 65 private static MetadataField lowerDimension; |
66 private static CIntField vtableLen; | 66 private static CIntField vtableLen; |
67 private static CIntField allocSize; | 67 private static CIntField allocSize; |
68 private static OopField componentMirror; | 68 private static OopField componentMirror; |
69 | 69 |
70 public Klass getJavaSuper() { | 70 public Klass getJavaSuper() { |
139 | 139 |
140 public void printValueOn(PrintStream tty) { | 140 public void printValueOn(PrintStream tty) { |
141 tty.print("ArrayKlass"); | 141 tty.print("ArrayKlass"); |
142 } | 142 } |
143 | 143 |
144 public long getObjectSize() { | 144 public void iterateFields(MetadataVisitor visitor) { |
145 return alignObjectSize(InstanceKlass.getHeaderSize() + getVtableLen() * getHeap().getOopSize()); | 145 super.iterateFields(visitor); |
146 } | |
147 | |
148 public void iterateFields(OopVisitor visitor, boolean doVMFields) { | |
149 super.iterateFields(visitor, doVMFields); | |
150 if (doVMFields) { | |
151 visitor.doCInt(dimension, true); | 146 visitor.doCInt(dimension, true); |
152 visitor.doOop(higherDimension, true); | 147 visitor.doMetadata(higherDimension, true); |
153 visitor.doOop(lowerDimension, true); | 148 visitor.doMetadata(lowerDimension, true); |
154 visitor.doCInt(vtableLen, true); | 149 visitor.doCInt(vtableLen, true); |
155 visitor.doCInt(allocSize, true); | 150 visitor.doCInt(allocSize, true); |
156 visitor.doOop(componentMirror, true); | 151 visitor.doOop(componentMirror, true); |
157 } | 152 } |
158 } | 153 } |
159 } |