Mercurial > hg > graal-jvmci-8
annotate agent/src/share/classes/sun/jvm/hotspot/oops/LocalVariableTableElement.java @ 24234:ea6f94ab283b default tip
Added tag jvmci-0.36 for changeset 8128b98d4736
author | Gilles Duboscq <gilles.m.duboscq@oracle.com> |
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date | Mon, 18 Sep 2017 18:49:45 +0200 |
parents | da91efe96a93 |
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0 | 1 /* |
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2 * Copyright (c) 2001, 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 java.io.*; | |
28 import java.util.*; | |
29 import sun.jvm.hotspot.debugger.*; | |
30 import sun.jvm.hotspot.interpreter.*; | |
31 import sun.jvm.hotspot.runtime.*; | |
32 import sun.jvm.hotspot.types.*; | |
33 import sun.jvm.hotspot.utilities.*; | |
34 | |
35 public class LocalVariableTableElement { | |
36 static { | |
37 VM.registerVMInitializedObserver(new Observer() { | |
38 public void update(Observable o, Object data) { | |
39 initialize(VM.getVM().getTypeDataBase()); | |
40 } | |
41 }); | |
42 } | |
43 | |
44 private static synchronized void initialize(TypeDataBase db) throws WrongTypeException { | |
45 Type type = db.lookupType("LocalVariableTableElement"); | |
46 offsetOfStartBCI = type.getCIntegerField("start_bci").getOffset(); | |
47 offsetOfLength = type.getCIntegerField("length").getOffset(); | |
48 offsetOfNameCPIndex = type.getCIntegerField("name_cp_index").getOffset(); | |
49 offsetOfDescriptorCPIndex = type.getCIntegerField("descriptor_cp_index").getOffset(); | |
50 offsetOfSignatureCPIndex = type.getCIntegerField("signature_cp_index").getOffset(); | |
51 offsetOfSlot = type.getCIntegerField("slot").getOffset(); | |
52 } | |
53 | |
54 private static long offsetOfStartBCI; | |
55 private static long offsetOfLength; | |
56 private static long offsetOfNameCPIndex; | |
57 private static long offsetOfDescriptorCPIndex; | |
58 private static long offsetOfSignatureCPIndex; | |
59 private static long offsetOfSlot; | |
60 | |
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61 private Address handle; |
0 | 62 private long offset; |
63 | |
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64 public LocalVariableTableElement(Address handle, long offset) { |
0 | 65 this.handle = handle; |
66 this.offset = offset; | |
67 } | |
68 | |
69 public int getStartBCI() { | |
70 return (int) handle.getCIntegerAt(offset + offsetOfStartBCI, 2, true); | |
71 } | |
72 | |
73 public int getLength() { | |
74 return (int) handle.getCIntegerAt(offset + offsetOfLength, 2, true); | |
75 } | |
76 | |
77 public int getNameCPIndex() { | |
78 return (int) handle.getCIntegerAt(offset + offsetOfNameCPIndex, 2, true); | |
79 } | |
80 | |
81 public int getDescriptorCPIndex() { | |
82 return (int) handle.getCIntegerAt(offset + offsetOfDescriptorCPIndex, 2, true); | |
83 } | |
84 | |
85 public int getSignatureCPIndex() { | |
86 return (int) handle.getCIntegerAt(offset + offsetOfSignatureCPIndex, 2, true); | |
87 } | |
88 | |
89 public int getSlot() { | |
90 return (int) handle.getCIntegerAt(offset + offsetOfSlot, 2, true); | |
91 } | |
92 } |