Mercurial > hg > graal-compiler
annotate agent/src/share/classes/sun/jvm/hotspot/oops/OopField.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 | c7f3d0b4570f |
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0 | 1 /* |
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2 * Copyright (c) 2000, 2012, 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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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.oops; | |
26 | |
27 import sun.jvm.hotspot.debugger.*; | |
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28 import sun.jvm.hotspot.runtime.VM; |
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29 import sun.jvm.hotspot.runtime.VMObject; |
0 | 30 |
31 // The class for an oop field simply provides access to the value. | |
32 public class OopField extends Field { | |
33 public OopField(FieldIdentifier id, long offset, boolean isVMField) { | |
34 super(id, offset, isVMField); | |
35 } | |
36 | |
37 public OopField(sun.jvm.hotspot.types.OopField vmField, long startOffset) { | |
38 super(new NamedFieldIdentifier(vmField.getName()), vmField.getOffset() + startOffset, true); | |
39 } | |
40 | |
41 public OopField(InstanceKlass holder, int fieldArrayIndex) { | |
42 super(holder, fieldArrayIndex); | |
43 } | |
44 | |
45 public Oop getValue(Oop obj) { | |
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46 if (!isVMField() && !obj.isInstance() && !obj.isArray()) { |
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47 throw new InternalError(); |
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48 } |
0 | 49 return obj.getHeap().newOop(getValueAsOopHandle(obj)); |
50 } | |
51 | |
52 /** Debugging support */ | |
53 public OopHandle getValueAsOopHandle(Oop obj) { | |
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54 if (!isVMField() && !obj.isInstance() && !obj.isArray()) { |
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55 throw new InternalError(obj.toString()); |
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56 } |
0 | 57 return obj.getHandle().getOopHandleAt(getOffset()); |
58 } | |
59 | |
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60 public Oop getValue(VMObject obj) { |
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61 return VM.getVM().getObjectHeap().newOop(getValueAsOopHandle(obj)); |
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62 } |
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63 |
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64 /** Debugging support */ |
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65 public OopHandle getValueAsOopHandle(VMObject obj) { |
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66 return obj.getAddress().getOopHandleAt(getOffset()); |
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67 } |
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68 |
0 | 69 public void setValue(Oop obj) throws MutationException { |
70 // Fix this: setOopAt is missing in Address | |
71 } | |
72 } |