Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/interpreter/BytecodeWithCPIndex.java @ 3945:8ed53447f690
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author | iveresov |
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date | Thu, 15 Sep 2011 12:44:09 -0700 |
parents | 6a991dcb52bb |
children | da91efe96a93 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 2002, 2010, 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.interpreter; | |
26 | |
27 import sun.jvm.hotspot.oops.*; | |
28 import sun.jvm.hotspot.runtime.*; | |
29 | |
30 // any bytecode with constant pool index | |
31 | |
32 public abstract class BytecodeWithCPIndex extends Bytecode { | |
33 BytecodeWithCPIndex(Method method, int bci) { | |
34 super(method, bci); | |
35 } | |
36 | |
37 // the constant pool index for this bytecode | |
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38 public int index() { return getIndexU2(code(), false); } |
0 | 39 |
1602 | 40 public int getSecondaryIndex() { |
41 throw new IllegalArgumentException("must be invokedynamic"); | |
42 } | |
43 | |
0 | 44 protected int indexForFieldOrMethod() { |
45 ConstantPoolCache cpCache = method().getConstants().getCache(); | |
46 // get ConstantPool index from ConstantPoolCacheIndex at given bci | |
47 int cpCacheIndex = index(); | |
48 if (cpCache == null) { | |
49 return cpCacheIndex; | |
1602 | 50 } else if (code() == Bytecodes._invokedynamic) { |
51 int secondaryIndex = getSecondaryIndex(); | |
52 return cpCache.getMainEntryAt(secondaryIndex).getConstantPoolIndex(); | |
0 | 53 } else { |
54 // change byte-ordering and go via cache | |
55 return cpCache.getEntryAt((int) (0xFFFF & VM.getVM().getBytes().swapShort((short) cpCacheIndex))).getConstantPoolIndex(); | |
56 } | |
57 } | |
58 } |