Mercurial > hg > truffle
comparison agent/src/share/classes/sun/jvm/hotspot/interpreter/BytecodeWithCPIndex.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 | 6a991dcb52bb |
children |
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6724:36d1d483d5d6 | 6725:da91efe96a93 |
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1 /* | 1 /* |
2 * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved. | 2 * Copyright (c) 2002, 2012, Oracle and/or its affiliates. All rights reserved. |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | 4 * |
5 * This code is free software; you can redistribute it and/or modify it | 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 | 6 * under the terms of the GNU General Public License version 2 only, as |
7 * published by the Free Software Foundation. | 7 * published by the Free Software Foundation. |
33 BytecodeWithCPIndex(Method method, int bci) { | 33 BytecodeWithCPIndex(Method method, int bci) { |
34 super(method, bci); | 34 super(method, bci); |
35 } | 35 } |
36 | 36 |
37 // the constant pool index for this bytecode | 37 // the constant pool index for this bytecode |
38 public int index() { return getIndexU2(code(), false); } | 38 public int index() { |
39 | 39 if (code() == Bytecodes._invokedynamic) { |
40 public int getSecondaryIndex() { | 40 int index = getIndexU4(); |
41 throw new IllegalArgumentException("must be invokedynamic"); | 41 if (ConstantPool.isInvokedynamicIndex(index)) { |
42 return ConstantPool.decodeInvokedynamicIndex(index); | |
43 } else { | |
44 return index; | |
45 } | |
46 } else { | |
47 return getIndexU2(code(), false); | |
48 } | |
42 } | 49 } |
43 | 50 |
44 protected int indexForFieldOrMethod() { | 51 protected int indexForFieldOrMethod() { |
45 ConstantPoolCache cpCache = method().getConstants().getCache(); | 52 ConstantPoolCache cpCache = method().getConstants().getCache(); |
46 // get ConstantPool index from ConstantPoolCacheIndex at given bci | 53 // get ConstantPool index from ConstantPoolCacheIndex at given bci |
47 int cpCacheIndex = index(); | 54 int cpCacheIndex = index(); |
48 if (cpCache == null) { | 55 if (cpCache == null) { |
49 return cpCacheIndex; | 56 return cpCacheIndex; |
50 } else if (code() == Bytecodes._invokedynamic) { | |
51 int secondaryIndex = getSecondaryIndex(); | |
52 return cpCache.getMainEntryAt(secondaryIndex).getConstantPoolIndex(); | |
53 } else { | 57 } else { |
54 // change byte-ordering and go via cache | 58 return cpCache.getEntryAt((int) (0xFFFF & cpCacheIndex)).getConstantPoolIndex(); |
55 return cpCache.getEntryAt((int) (0xFFFF & VM.getVM().getBytes().swapShort((short) cpCacheIndex))).getConstantPoolIndex(); | |
56 } | 59 } |
57 } | 60 } |
58 } | 61 } |