Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/memory/Universe.java @ 844:bd02caa94611
6862919: Update copyright year
Summary: Update copyright for files that have been modified in 2009, up to 07/09
Reviewed-by: tbell, ohair
| author | xdono |
|---|---|
| date | Tue, 28 Jul 2009 12:12:40 -0700 |
| parents | 660978a2a31a |
| children | c18cbe5936b8 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 844 | 2 * Copyright 2000-2009 Sun Microsystems, Inc. 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 * | |
| 19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
| 20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
| 21 * have any questions. | |
| 22 * | |
| 23 */ | |
| 24 | |
| 25 package sun.jvm.hotspot.memory; | |
| 26 | |
| 27 import java.io.*; | |
| 28 import java.util.*; | |
| 29 import sun.jvm.hotspot.debugger.*; | |
| 30 import sun.jvm.hotspot.gc_interface.*; | |
| 31 import sun.jvm.hotspot.gc_implementation.parallelScavenge.*; | |
| 32 import sun.jvm.hotspot.oops.*; | |
| 33 import sun.jvm.hotspot.types.*; | |
| 34 import sun.jvm.hotspot.runtime.*; | |
| 35 | |
| 36 | |
| 37 public class Universe { | |
| 38 private static AddressField collectedHeapField; | |
| 39 private static VirtualConstructor heapConstructor; | |
| 40 private static sun.jvm.hotspot.types.OopField mainThreadGroupField; | |
| 41 private static sun.jvm.hotspot.types.OopField systemThreadGroupField; | |
| 42 | |
| 43 // single dimensional primitive array klasses | |
| 44 private static sun.jvm.hotspot.types.OopField boolArrayKlassObjField; | |
| 45 private static sun.jvm.hotspot.types.OopField byteArrayKlassObjField; | |
| 46 private static sun.jvm.hotspot.types.OopField charArrayKlassObjField; | |
| 47 private static sun.jvm.hotspot.types.OopField intArrayKlassObjField; | |
| 48 private static sun.jvm.hotspot.types.OopField shortArrayKlassObjField; | |
| 49 private static sun.jvm.hotspot.types.OopField longArrayKlassObjField; | |
| 50 private static sun.jvm.hotspot.types.OopField singleArrayKlassObjField; | |
| 51 private static sun.jvm.hotspot.types.OopField doubleArrayKlassObjField; | |
| 52 | |
| 53 // system obj array klass object | |
| 54 private static sun.jvm.hotspot.types.OopField systemObjArrayKlassObjField; | |
| 55 | |
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56 private static AddressField narrowOopBaseField; |
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57 private static CIntegerField narrowOopShiftField; |
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58 |
| 0 | 59 static { |
| 60 VM.registerVMInitializedObserver(new Observer() { | |
| 61 public void update(Observable o, Object data) { | |
| 62 initialize(VM.getVM().getTypeDataBase()); | |
| 63 } | |
| 64 }); | |
| 65 } | |
| 66 | |
| 67 private static synchronized void initialize(TypeDataBase db) { | |
| 68 Type type = db.lookupType("Universe"); | |
| 69 | |
| 70 collectedHeapField = type.getAddressField("_collectedHeap"); | |
| 71 | |
| 72 heapConstructor = new VirtualConstructor(db); | |
| 73 heapConstructor.addMapping("GenCollectedHeap", GenCollectedHeap.class); | |
| 74 heapConstructor.addMapping("ParallelScavengeHeap", ParallelScavengeHeap.class); | |
| 75 | |
| 76 mainThreadGroupField = type.getOopField("_main_thread_group"); | |
| 77 systemThreadGroupField = type.getOopField("_system_thread_group"); | |
| 78 | |
| 79 boolArrayKlassObjField = type.getOopField("_boolArrayKlassObj"); | |
| 80 byteArrayKlassObjField = type.getOopField("_byteArrayKlassObj"); | |
| 81 charArrayKlassObjField = type.getOopField("_charArrayKlassObj"); | |
| 82 intArrayKlassObjField = type.getOopField("_intArrayKlassObj"); | |
| 83 shortArrayKlassObjField = type.getOopField("_shortArrayKlassObj"); | |
| 84 longArrayKlassObjField = type.getOopField("_longArrayKlassObj"); | |
| 85 singleArrayKlassObjField = type.getOopField("_singleArrayKlassObj"); | |
| 86 doubleArrayKlassObjField = type.getOopField("_doubleArrayKlassObj"); | |
| 87 | |
| 88 systemObjArrayKlassObjField = type.getOopField("_systemObjArrayKlassObj"); | |
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89 |
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90 narrowOopBaseField = type.getAddressField("_narrow_oop._base"); |
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91 narrowOopShiftField = type.getCIntegerField("_narrow_oop._shift"); |
| 0 | 92 } |
| 93 | |
| 94 public Universe() { | |
| 95 } | |
| 96 | |
| 97 public CollectedHeap heap() { | |
| 98 try { | |
| 99 return (CollectedHeap) heapConstructor.instantiateWrapperFor(collectedHeapField.getValue()); | |
| 100 } catch (WrongTypeException e) { | |
| 101 return new CollectedHeap(collectedHeapField.getValue()); | |
| 102 } | |
| 103 } | |
| 104 | |
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105 public static long getNarrowOopBase() { |
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106 if (narrowOopBaseField.getValue() == null) { |
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107 return 0; |
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108 } else { |
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109 return narrowOopBaseField.getValue().minus(null); |
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110 } |
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111 } |
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112 |
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113 public static int getNarrowOopShift() { |
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114 return (int)narrowOopShiftField.getValue(); |
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115 } |
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116 |
| 0 | 117 /** Returns "TRUE" iff "p" points into the allocated area of the heap. */ |
| 118 public boolean isIn(Address p) { | |
| 119 return heap().isIn(p); | |
| 120 } | |
| 121 | |
| 122 /** Returns "TRUE" iff "p" points into the reserved area of the heap. */ | |
| 123 public boolean isInReserved(Address p) { | |
| 124 return heap().isInReserved(p); | |
| 125 } | |
| 126 | |
| 127 private Oop newOop(OopHandle handle) { | |
| 128 return VM.getVM().getObjectHeap().newOop(handle); | |
| 129 } | |
| 130 | |
| 131 public Oop mainThreadGroup() { | |
| 132 return newOop(mainThreadGroupField.getValue()); | |
| 133 } | |
| 134 | |
| 135 public Oop systemThreadGroup() { | |
| 136 return newOop(systemThreadGroupField.getValue()); | |
| 137 } | |
| 138 | |
| 139 public Oop systemObjArrayKlassObj() { | |
| 140 return newOop(systemObjArrayKlassObjField.getValue()); | |
| 141 } | |
| 142 | |
| 143 // iterate through the single dimensional primitive array klasses | |
| 144 // refer to basic_type_classes_do(void f(klassOop)) in universe.cpp | |
| 145 public void basicTypeClassesDo(SystemDictionary.ClassVisitor visitor) { | |
| 146 visitor.visit((Klass)newOop(boolArrayKlassObjField.getValue())); | |
| 147 visitor.visit((Klass)newOop(byteArrayKlassObjField.getValue())); | |
| 148 visitor.visit((Klass)newOop(charArrayKlassObjField.getValue())); | |
| 149 visitor.visit((Klass)newOop(intArrayKlassObjField.getValue())); | |
| 150 visitor.visit((Klass)newOop(shortArrayKlassObjField.getValue())); | |
| 151 visitor.visit((Klass)newOop(longArrayKlassObjField.getValue())); | |
| 152 visitor.visit((Klass)newOop(singleArrayKlassObjField.getValue())); | |
| 153 visitor.visit((Klass)newOop(doubleArrayKlassObjField.getValue())); | |
| 154 } | |
| 155 | |
| 156 public void print() { printOn(System.out); } | |
| 157 public void printOn(PrintStream tty) { | |
| 158 heap().printOn(tty); | |
| 159 } | |
| 160 | |
| 161 // Check whether an element of a typeArrayOop with the given type must be | |
| 162 // aligned 0 mod 8. The typeArrayOop itself must be aligned at least this | |
| 163 // strongly. | |
| 164 public static boolean elementTypeShouldBeAligned(BasicType type) { | |
| 165 return type == BasicType.T_DOUBLE || type == BasicType.T_LONG; | |
| 166 } | |
| 167 | |
| 168 // Check whether an object field (static/non-static) of the given type must be | |
| 169 // aligned 0 mod 8. | |
| 170 public static boolean fieldTypeShouldBeAligned(BasicType type) { | |
| 171 return type == BasicType.T_DOUBLE || type == BasicType.T_LONG; | |
| 172 } | |
| 173 } |