1 /*
2 * Copyright (c) 2000, 2014, Oracle and/or its affiliates. All rights reserved.
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 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
31 import sun.jvm.hotspot.memory.*;
32 import sun.jvm.hotspot.runtime.*;
33 import sun.jvm.hotspot.types.*;
34
35 // ArrayKlass is the abstract class for all array classes
36
37 public class ArrayKlass extends Klass {
38 static {
39 VM.registerVMInitializedObserver(new Observer() {
40 public void update(Observable o, Object data) {
41 initialize(VM.getVM().getTypeDataBase());
42 }
43 });
44 }
45
46 private static synchronized void initialize(TypeDataBase db) throws WrongTypeException {
47 Type type = db.lookupType("ArrayKlass");
48 dimension = new CIntField(type.getCIntegerField("_dimension"), 0);
49 higherDimension = new MetadataField(type.getAddressField("_higher_dimension"), 0);
50 lowerDimension = new MetadataField(type.getAddressField("_lower_dimension"), 0);
51 vtableLen = new CIntField(type.getCIntegerField("_vtable_len"), 0);
52 javaLangCloneableName = null;
53 javaLangObjectName = null;
54 javaIoSerializableName = null;
55 }
56
57 public ArrayKlass(Address addr) {
58 super(addr);
59 }
60
61 private static CIntField dimension;
62 private static MetadataField higherDimension;
63 private static MetadataField lowerDimension;
64 private static CIntField vtableLen;
65
66 public Klass getJavaSuper() {
67 SystemDictionary sysDict = VM.getVM().getSystemDictionary();
68 return sysDict.getObjectKlass();
69 }
70
71 public long getDimension() { return dimension.getValue(this); }
72 public Klass getHigherDimension() { return (Klass) higherDimension.getValue(this); }
73 public Klass getLowerDimension() { return (Klass) lowerDimension.getValue(this); }
74 public long getVtableLen() { return vtableLen.getValue(this); }
75
76 // constant class names - javaLangCloneable, javaIoSerializable, javaLangObject
77 // Initialized lazily to avoid initialization ordering dependencies between ArrayKlass and SymbolTable
78 private static Symbol javaLangCloneableName;
79 private static Symbol javaLangObjectName;
80 private static Symbol javaIoSerializableName;
81 private static Symbol javaLangCloneableName() {
82 if (javaLangCloneableName == null) {
83 javaLangCloneableName = VM.getVM().getSymbolTable().probe("java/lang/Cloneable");
84 }
85 return javaLangCloneableName;
86 }
87
88 private static Symbol javaLangObjectName() {
89 if (javaLangObjectName == null) {
90 javaLangObjectName = VM.getVM().getSymbolTable().probe("java/lang/Object");
91 }
92 return javaLangObjectName;
93 }
94
123 // An array is a subtype of Serializable, Clonable, and Object
124 Symbol name = k.getName();
125 if (name != null && (name.equals(javaIoSerializableName()) ||
126 name.equals(javaLangCloneableName()) ||
127 name.equals(javaLangObjectName()))) {
128 return true;
129 } else {
130 return false;
131 }
132 }
133
134 public void printValueOn(PrintStream tty) {
135 tty.print("ArrayKlass");
136 }
137
138 public void iterateFields(MetadataVisitor visitor) {
139 super.iterateFields(visitor);
140 visitor.doCInt(dimension, true);
141 visitor.doMetadata(higherDimension, true);
142 visitor.doMetadata(lowerDimension, true);
143 visitor.doCInt(vtableLen, true);
144 }
145 }
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1 /*
2 * Copyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved.
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 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
31 import sun.jvm.hotspot.memory.*;
32 import sun.jvm.hotspot.runtime.*;
33 import sun.jvm.hotspot.types.*;
34
35 // ArrayKlass is the abstract class for all array classes
36
37 public class ArrayKlass extends Klass {
38 static {
39 VM.registerVMInitializedObserver(new Observer() {
40 public void update(Observable o, Object data) {
41 initialize(VM.getVM().getTypeDataBase());
42 }
43 });
44 }
45
46 private static synchronized void initialize(TypeDataBase db) throws WrongTypeException {
47 Type type = db.lookupType("ArrayKlass");
48 dimension = new CIntField(type.getCIntegerField("_dimension"), 0);
49 higherDimension = new MetadataField(type.getAddressField("_higher_dimension"), 0);
50 lowerDimension = new MetadataField(type.getAddressField("_lower_dimension"), 0);
51 javaLangCloneableName = null;
52 javaLangObjectName = null;
53 javaIoSerializableName = null;
54 }
55
56 public ArrayKlass(Address addr) {
57 super(addr);
58 }
59
60 private static CIntField dimension;
61 private static MetadataField higherDimension;
62 private static MetadataField lowerDimension;
63
64 public Klass getJavaSuper() {
65 SystemDictionary sysDict = VM.getVM().getSystemDictionary();
66 return sysDict.getObjectKlass();
67 }
68
69 public long getDimension() { return dimension.getValue(this); }
70 public Klass getHigherDimension() { return (Klass) higherDimension.getValue(this); }
71 public Klass getLowerDimension() { return (Klass) lowerDimension.getValue(this); }
72
73 // constant class names - javaLangCloneable, javaIoSerializable, javaLangObject
74 // Initialized lazily to avoid initialization ordering dependencies between ArrayKlass and SymbolTable
75 private static Symbol javaLangCloneableName;
76 private static Symbol javaLangObjectName;
77 private static Symbol javaIoSerializableName;
78 private static Symbol javaLangCloneableName() {
79 if (javaLangCloneableName == null) {
80 javaLangCloneableName = VM.getVM().getSymbolTable().probe("java/lang/Cloneable");
81 }
82 return javaLangCloneableName;
83 }
84
85 private static Symbol javaLangObjectName() {
86 if (javaLangObjectName == null) {
87 javaLangObjectName = VM.getVM().getSymbolTable().probe("java/lang/Object");
88 }
89 return javaLangObjectName;
90 }
91
120 // An array is a subtype of Serializable, Clonable, and Object
121 Symbol name = k.getName();
122 if (name != null && (name.equals(javaIoSerializableName()) ||
123 name.equals(javaLangCloneableName()) ||
124 name.equals(javaLangObjectName()))) {
125 return true;
126 } else {
127 return false;
128 }
129 }
130
131 public void printValueOn(PrintStream tty) {
132 tty.print("ArrayKlass");
133 }
134
135 public void iterateFields(MetadataVisitor visitor) {
136 super.iterateFields(visitor);
137 visitor.doCInt(dimension, true);
138 visitor.doMetadata(higherDimension, true);
139 visitor.doMetadata(lowerDimension, true);
140 }
141 }
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