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annotate agent/src/share/classes/sun/jvm/hotspot/oops/MetadataField.java @ 6848:8e47bac5643a

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7054512: Compress class pointers after perm gen removal Summary: support of compress class pointers in the compilers. Reviewed-by: kvn, twisti
author roland
date Tue, 09 Oct 2012 10:11:38 +0200
parents da91efe96a93
children
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1 /*
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2 * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 *
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23 */
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24
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25 package sun.jvm.hotspot.oops;
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26
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27 import sun.jvm.hotspot.runtime.VMObject;
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28 import sun.jvm.hotspot.debugger.*;
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29
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30 public class MetadataField extends Field {
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31
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32 public MetadataField(sun.jvm.hotspot.types.AddressField vmField, long startOffset) {
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33 super(new NamedFieldIdentifier(vmField.getName()), vmField.getOffset() + startOffset, true);
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34 }
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35
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36 public Metadata getValue(Oop obj) {
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37 return getValue(obj.getHandle());
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38 }
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39 public Metadata getValue(VMObject obj) {
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40 return getValue(obj.getAddress());
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41 }
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42 public Metadata getValue(Address addr) {
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43 return Metadata.instantiateWrapperFor(addr.getAddressAt(getOffset()));
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44 }
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45 public void setValue(Oop obj, long value) throws MutationException {
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46 // Fix this: set* missing in Address
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47 }
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48 }