Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/memory/Universe.java @ 196:d1605aabd0a1 jdk7-b30
6719955: Update copyright year
Summary: Update copyright year for files that have been modified in 2008
Reviewed-by: ohair, tbell
| author | xdono |
|---|---|
| date | Wed, 02 Jul 2008 12:55:16 -0700 |
| parents | ba764ed4b6f2 |
| children | 660978a2a31a |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 196 | 2 * Copyright 2000-2008 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 heapBaseField; |
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57 |
| 0 | 58 static { |
| 59 VM.registerVMInitializedObserver(new Observer() { | |
| 60 public void update(Observable o, Object data) { | |
| 61 initialize(VM.getVM().getTypeDataBase()); | |
| 62 } | |
| 63 }); | |
| 64 } | |
| 65 | |
| 66 private static synchronized void initialize(TypeDataBase db) { | |
| 67 Type type = db.lookupType("Universe"); | |
| 68 | |
| 69 collectedHeapField = type.getAddressField("_collectedHeap"); | |
| 70 | |
| 71 heapConstructor = new VirtualConstructor(db); | |
| 72 heapConstructor.addMapping("GenCollectedHeap", GenCollectedHeap.class); | |
| 73 heapConstructor.addMapping("ParallelScavengeHeap", ParallelScavengeHeap.class); | |
| 74 | |
| 75 mainThreadGroupField = type.getOopField("_main_thread_group"); | |
| 76 systemThreadGroupField = type.getOopField("_system_thread_group"); | |
| 77 | |
| 78 boolArrayKlassObjField = type.getOopField("_boolArrayKlassObj"); | |
| 79 byteArrayKlassObjField = type.getOopField("_byteArrayKlassObj"); | |
| 80 charArrayKlassObjField = type.getOopField("_charArrayKlassObj"); | |
| 81 intArrayKlassObjField = type.getOopField("_intArrayKlassObj"); | |
| 82 shortArrayKlassObjField = type.getOopField("_shortArrayKlassObj"); | |
| 83 longArrayKlassObjField = type.getOopField("_longArrayKlassObj"); | |
| 84 singleArrayKlassObjField = type.getOopField("_singleArrayKlassObj"); | |
| 85 doubleArrayKlassObjField = type.getOopField("_doubleArrayKlassObj"); | |
| 86 | |
| 87 systemObjArrayKlassObjField = type.getOopField("_systemObjArrayKlassObj"); | |
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88 |
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89 heapBaseField = type.getAddressField("_heap_base"); |
| 0 | 90 } |
| 91 | |
| 92 public Universe() { | |
| 93 } | |
| 94 | |
| 95 public CollectedHeap heap() { | |
| 96 try { | |
| 97 return (CollectedHeap) heapConstructor.instantiateWrapperFor(collectedHeapField.getValue()); | |
| 98 } catch (WrongTypeException e) { | |
| 99 return new CollectedHeap(collectedHeapField.getValue()); | |
| 100 } | |
| 101 } | |
| 102 | |
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103 public static long getHeapBase() { |
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104 if (heapBaseField.getValue() == null) { |
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105 return 0; |
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ba764ed4b6f2
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coleenp
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106 } else { |
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6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
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107 return heapBaseField.getValue().minus(null); |
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108 } |
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109 } |
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110 |
| 0 | 111 /** Returns "TRUE" iff "p" points into the allocated area of the heap. */ |
| 112 public boolean isIn(Address p) { | |
| 113 return heap().isIn(p); | |
| 114 } | |
| 115 | |
| 116 /** Returns "TRUE" iff "p" points into the reserved area of the heap. */ | |
| 117 public boolean isInReserved(Address p) { | |
| 118 return heap().isInReserved(p); | |
| 119 } | |
| 120 | |
| 121 private Oop newOop(OopHandle handle) { | |
| 122 return VM.getVM().getObjectHeap().newOop(handle); | |
| 123 } | |
| 124 | |
| 125 public Oop mainThreadGroup() { | |
| 126 return newOop(mainThreadGroupField.getValue()); | |
| 127 } | |
| 128 | |
| 129 public Oop systemThreadGroup() { | |
| 130 return newOop(systemThreadGroupField.getValue()); | |
| 131 } | |
| 132 | |
| 133 public Oop systemObjArrayKlassObj() { | |
| 134 return newOop(systemObjArrayKlassObjField.getValue()); | |
| 135 } | |
| 136 | |
| 137 // iterate through the single dimensional primitive array klasses | |
| 138 // refer to basic_type_classes_do(void f(klassOop)) in universe.cpp | |
| 139 public void basicTypeClassesDo(SystemDictionary.ClassVisitor visitor) { | |
| 140 visitor.visit((Klass)newOop(boolArrayKlassObjField.getValue())); | |
| 141 visitor.visit((Klass)newOop(byteArrayKlassObjField.getValue())); | |
| 142 visitor.visit((Klass)newOop(charArrayKlassObjField.getValue())); | |
| 143 visitor.visit((Klass)newOop(intArrayKlassObjField.getValue())); | |
| 144 visitor.visit((Klass)newOop(shortArrayKlassObjField.getValue())); | |
| 145 visitor.visit((Klass)newOop(longArrayKlassObjField.getValue())); | |
| 146 visitor.visit((Klass)newOop(singleArrayKlassObjField.getValue())); | |
| 147 visitor.visit((Klass)newOop(doubleArrayKlassObjField.getValue())); | |
| 148 } | |
| 149 | |
| 150 public void print() { printOn(System.out); } | |
| 151 public void printOn(PrintStream tty) { | |
| 152 heap().printOn(tty); | |
| 153 } | |
| 154 | |
| 155 // Check whether an element of a typeArrayOop with the given type must be | |
| 156 // aligned 0 mod 8. The typeArrayOop itself must be aligned at least this | |
| 157 // strongly. | |
| 158 public static boolean elementTypeShouldBeAligned(BasicType type) { | |
| 159 return type == BasicType.T_DOUBLE || type == BasicType.T_LONG; | |
| 160 } | |
| 161 | |
| 162 // Check whether an object field (static/non-static) of the given type must be | |
| 163 // aligned 0 mod 8. | |
| 164 public static boolean fieldTypeShouldBeAligned(BasicType type) { | |
| 165 return type == BasicType.T_DOUBLE || type == BasicType.T_LONG; | |
| 166 } | |
| 167 } |