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comparison agent/src/share/classes/sun/jvm/hotspot/oops/ConstantPoolCache.java @ 3838:6a991dcb52bb

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7012081: JSR 292: SA-JDI can't read MH/MT/Indy ConstantPool entries Reviewed-by: kvn, twisti, jrose
author never
date Thu, 21 Jul 2011 08:38:25 -0700
parents 0a8e0d4345b3
children da91efe96a93
comparison
equal deleted inserted replaced
3837:43f9d800f276 3838:6a991dcb52bb
1 /* 1 /*
2 * Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved. 2 * Copyright (c) 2000, 2011, 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.
70 public long getObjectSize() { 70 public long getObjectSize() {
71 return alignObjectSize(baseOffset + getLength() * elementSize); 71 return alignObjectSize(baseOffset + getLength() * elementSize);
72 } 72 }
73 73
74 public ConstantPoolCacheEntry getEntryAt(int i) { 74 public ConstantPoolCacheEntry getEntryAt(int i) {
75 if (Assert.ASSERTS_ENABLED) { 75 if (i < 0 || i >= getLength()) throw new IndexOutOfBoundsException(i + " " + getLength());
76 Assert.that(0 <= i && i < getLength(), "index out of bounds");
77 }
78 return new ConstantPoolCacheEntry(this, i); 76 return new ConstantPoolCacheEntry(this, i);
79 } 77 }
80 78
81 public static boolean isSecondaryIndex(int i) { return (i < 0); } 79 public static boolean isSecondaryIndex(int i) { return (i < 0); }
82 public static int decodeSecondaryIndex(int i) { return isSecondaryIndex(i) ? ~i : i; } 80 public static int decodeSecondaryIndex(int i) { return isSecondaryIndex(i) ? ~i : i; }
83 public static int encodeSecondaryIndex(int i) { return !isSecondaryIndex(i) ? ~i : i; } 81 public static int encodeSecondaryIndex(int i) { return !isSecondaryIndex(i) ? ~i : i; }
84 82
85 // secondary entries hold invokedynamic call site bindings 83 // secondary entries hold invokedynamic call site bindings
86 public ConstantPoolCacheEntry getSecondaryEntryAt(int i) { 84 public ConstantPoolCacheEntry getSecondaryEntryAt(int i) {
87 ConstantPoolCacheEntry e = new ConstantPoolCacheEntry(this, decodeSecondaryIndex(i)); 85 int rawIndex = i;
86 if (isSecondaryIndex(i)) {
87 rawIndex = decodeSecondaryIndex(i);
88 }
89 ConstantPoolCacheEntry e = getEntryAt(rawIndex);
88 if (Assert.ASSERTS_ENABLED) { 90 if (Assert.ASSERTS_ENABLED) {
89 Assert.that(e.isSecondaryEntry(), "must be a secondary entry"); 91 Assert.that(e.isSecondaryEntry(), "must be a secondary entry:" + rawIndex);
90 } 92 }
91 return e; 93 return e;
92 } 94 }
93 95
94 public ConstantPoolCacheEntry getMainEntryAt(int i) { 96 public ConstantPoolCacheEntry getMainEntryAt(int i) {
97 int primaryIndex = i;
95 if (isSecondaryIndex(i)) { 98 if (isSecondaryIndex(i)) {
96 // run through an extra level of indirection: 99 // run through an extra level of indirection:
97 i = getSecondaryEntryAt(i).getMainEntryIndex(); 100 int rawIndex = decodeSecondaryIndex(i);
101 primaryIndex = getEntryAt(rawIndex).getMainEntryIndex();
98 } 102 }
99 ConstantPoolCacheEntry e = new ConstantPoolCacheEntry(this, i); 103 ConstantPoolCacheEntry e = getEntryAt(primaryIndex);
100 if (Assert.ASSERTS_ENABLED) { 104 if (Assert.ASSERTS_ENABLED) {
101 Assert.that(!e.isSecondaryEntry(), "must not be a secondary entry"); 105 Assert.that(!e.isSecondaryEntry(), "must not be a secondary entry:" + primaryIndex);
102 } 106 }
103 return e; 107 return e;
104 } 108 }
105 109
106 public int getIntAt(int entry, int fld) { 110 public int getIntAt(int entry, int fld) {