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comparison agent/src/share/classes/sun/jvm/hotspot/interpreter/BytecodeWithCPIndex.java @ 6725:da91efe96a93

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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
date Sat, 01 Sep 2012 13:25:18 -0400
parents 6a991dcb52bb
children
comparison
equal deleted inserted replaced
6724:36d1d483d5d6 6725:da91efe96a93
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 }