Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/jdi/ArrayReferenceImpl.java @ 11997:cd25d3be91c5
8012144: multiple SIGSEGVs fails on staxf
Summary: Forward port of 7u change to add additional fence() on RMO platforms, with a load_acquire on all platforms
Reviewed-by: dholmes, kvn
author | vladidan |
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date | Tue, 06 Aug 2013 20:01:40 -0400 |
parents | c18cbe5936b8 |
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rev | line source |
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0 | 1 /* |
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6941466: Oracle rebranding changes for Hotspot repositories
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2 * Copyright (c) 2002, 2004, 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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6941466: Oracle rebranding changes for Hotspot repositories
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
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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.jdi; | |
26 | |
27 import com.sun.jdi.*; | |
28 | |
29 import java.util.List; | |
30 import java.util.ArrayList; | |
31 import java.util.Iterator; | |
32 | |
33 import sun.jvm.hotspot.oops.Instance; | |
34 import sun.jvm.hotspot.oops.Array; | |
35 import sun.jvm.hotspot.runtime.BasicType; | |
36 import sun.jvm.hotspot.utilities.Assert; | |
37 | |
38 public class ArrayReferenceImpl extends ObjectReferenceImpl | |
39 implements ArrayReference | |
40 { | |
41 private int length; | |
42 ArrayReferenceImpl(VirtualMachine aVm, sun.jvm.hotspot.oops.Array aRef) { | |
43 super(aVm, aRef); | |
44 length = (int) aRef.getLength(); | |
45 } | |
46 | |
47 ArrayTypeImpl arrayType() { | |
48 return (ArrayTypeImpl)type(); | |
49 } | |
50 | |
51 /** | |
52 * Return array length. | |
53 */ | |
54 public int length() { | |
55 return length; | |
56 } | |
57 | |
58 public Value getValue(int index) { | |
59 List list = getValues(index, 1); | |
60 return (Value)list.get(0); | |
61 } | |
62 | |
63 public List getValues() { | |
64 return getValues(0, -1); | |
65 } | |
66 | |
67 /** | |
68 * Validate that the range to set/get is valid. | |
69 * length of -1 (meaning rest of array) has been converted | |
70 * before entry. | |
71 */ | |
72 private void validateArrayAccess(int index, int len) { | |
73 // because length can be computed from index, | |
74 // index must be tested first for correct error message | |
75 if ((index < 0) || (index > length())) { | |
76 throw new IndexOutOfBoundsException( | |
77 "Invalid array index: " + index); | |
78 } | |
79 if (len < 0) { | |
80 throw new IndexOutOfBoundsException( | |
81 "Invalid array range length: " + len); | |
82 } | |
83 if (index + len > length()) { | |
84 throw new IndexOutOfBoundsException( | |
85 "Invalid array range: " + | |
86 index + " to " + (index + len - 1)); | |
87 } | |
88 } | |
89 | |
90 public List getValues(int index, int len) { | |
91 if (len == -1) { // -1 means the rest of the array | |
92 len = length() - index; | |
93 } | |
94 validateArrayAccess(index, len); | |
95 List vals = new ArrayList(); | |
96 if (len == 0) { | |
97 return vals; | |
98 } | |
99 | |
100 sun.jvm.hotspot.oops.TypeArray typeArray = null; | |
101 sun.jvm.hotspot.oops.ObjArray objArray = null; | |
102 if (ref() instanceof sun.jvm.hotspot.oops.TypeArray) { | |
103 typeArray = (sun.jvm.hotspot.oops.TypeArray)ref(); | |
104 } else if (ref() instanceof sun.jvm.hotspot.oops.ObjArray) { | |
105 objArray = (sun.jvm.hotspot.oops.ObjArray)ref(); | |
106 } else { | |
107 throw new RuntimeException("should not reach here"); | |
108 } | |
109 | |
110 char c = arrayType().componentSignature().charAt(0); | |
111 BasicType variableType = BasicType.charToBasicType(c); | |
112 | |
113 final int limit = index + len; | |
114 for (int ii = index; ii < limit; ii++) { | |
115 ValueImpl valueImpl; | |
116 if (variableType == BasicType.T_BOOLEAN) { | |
117 valueImpl = (BooleanValueImpl) vm.mirrorOf(typeArray.getBooleanAt(ii)); | |
118 } else if (variableType == BasicType.T_CHAR) { | |
119 valueImpl = (CharValueImpl) vm.mirrorOf(typeArray.getCharAt(ii)); | |
120 } else if (variableType == BasicType.T_FLOAT) { | |
121 valueImpl = (FloatValueImpl) vm.mirrorOf(typeArray.getFloatAt(ii)); | |
122 } else if (variableType == BasicType.T_DOUBLE) { | |
123 valueImpl = (DoubleValueImpl) vm.mirrorOf(typeArray.getDoubleAt(ii)); | |
124 } else if (variableType == BasicType.T_BYTE) { | |
125 valueImpl = (ByteValueImpl) vm.mirrorOf(typeArray.getByteAt(ii)); | |
126 } else if (variableType == BasicType.T_SHORT) { | |
127 valueImpl = (ShortValueImpl) vm.mirrorOf(typeArray.getShortAt(ii)); | |
128 } else if (variableType == BasicType.T_INT) { | |
129 valueImpl = (IntegerValueImpl) vm.mirrorOf(typeArray.getIntAt(ii)); | |
130 } else if (variableType == BasicType.T_LONG) { | |
131 valueImpl = (LongValueImpl) vm.mirrorOf(typeArray.getLongAt(ii)); | |
132 } else if (variableType == BasicType.T_OBJECT) { | |
133 // we may have an [Ljava/lang/Object; - i.e., Object[] with the | |
134 // elements themselves may be arrays because every array is an Object. | |
135 valueImpl = (ObjectReferenceImpl) vm.objectMirror(objArray.getObjAt(ii)); | |
136 } else if (variableType == BasicType.T_ARRAY) { | |
137 valueImpl = (ArrayReferenceImpl) vm.arrayMirror((Array) objArray.getObjAt(ii)); | |
138 } else { | |
139 throw new RuntimeException("should not reach here"); | |
140 } | |
141 vals.add (valueImpl); | |
142 } | |
143 return vals; | |
144 } | |
145 | |
146 public void setValue(int index, Value value) | |
147 throws InvalidTypeException, | |
148 ClassNotLoadedException { | |
149 vm.throwNotReadOnlyException("ArrayReference.setValue(...)"); | |
150 } | |
151 | |
152 public void setValues(List values) | |
153 throws InvalidTypeException, | |
154 ClassNotLoadedException { | |
155 setValues(0, values, 0, -1); | |
156 } | |
157 | |
158 public void setValues(int index, List values, | |
159 int srcIndex, int length) | |
160 throws InvalidTypeException, | |
161 ClassNotLoadedException { | |
162 | |
163 vm.throwNotReadOnlyException("ArrayReference.setValue(...)"); | |
164 | |
165 } | |
166 | |
167 public String toString() { | |
168 return "instance of " + arrayType().componentTypeName() + | |
169 "[" + length() + "] (id=" + uniqueID() + ")"; | |
170 } | |
171 } |