Mercurial > hg > truffle
comparison agent/src/share/classes/sun/jvm/hotspot/oops/NarrowKlassField.java @ 6848:8e47bac5643a
7054512: Compress class pointers after perm gen removal
Summary: support of compress class pointers in the compilers.
Reviewed-by: kvn, twisti
author | roland |
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date | Tue, 09 Oct 2012 10:11:38 +0200 |
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6847:65d07d9ee446 | 6848:8e47bac5643a |
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1 /* | |
2 * Copyright (c) 2012, 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.oops; | |
26 | |
27 import sun.jvm.hotspot.debugger.*; | |
28 | |
29 public class NarrowKlassField extends MetadataField { | |
30 | |
31 public NarrowKlassField(sun.jvm.hotspot.types.AddressField vmField, long startOffset) { | |
32 super(vmField, startOffset); | |
33 } | |
34 | |
35 public Metadata getValue(Address addr) { | |
36 return Metadata.instantiateWrapperFor(addr.getCompKlassAddressAt(getOffset())); | |
37 } | |
38 public void setValue(Oop obj, long value) throws MutationException { | |
39 // Fix this: set* missing in Address | |
40 } | |
41 } |