Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/memory/Universe.java @ 18109:b72ce1826bd0
Truffle: revert back to typed primitives, but make the primitive array an int[]
author | Andreas Woess <andreas.woess@jku.at> |
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date | Wed, 15 Oct 2014 19:25:43 +0200 |
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2 * Copyright (c) 2000, 2012, 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 * | |
1552
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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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.memory; | |
26 | |
27 import java.io.*; | |
28 import java.util.*; | |
29 import sun.jvm.hotspot.debugger.*; | |
30 import sun.jvm.hotspot.gc_interface.*; | |
3972 | 31 import sun.jvm.hotspot.gc_implementation.g1.G1CollectedHeap; |
0 | 32 import sun.jvm.hotspot.gc_implementation.parallelScavenge.*; |
33 import sun.jvm.hotspot.oops.*; | |
34 import sun.jvm.hotspot.types.*; | |
35 import sun.jvm.hotspot.runtime.*; | |
36 | |
37 | |
38 public class Universe { | |
39 private static AddressField collectedHeapField; | |
40 private static VirtualConstructor heapConstructor; | |
41 private static sun.jvm.hotspot.types.OopField mainThreadGroupField; | |
42 private static sun.jvm.hotspot.types.OopField systemThreadGroupField; | |
43 | |
44 // single dimensional primitive array klasses | |
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45 private static sun.jvm.hotspot.types.AddressField boolArrayKlassField; |
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46 private static sun.jvm.hotspot.types.AddressField byteArrayKlassField; |
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47 private static sun.jvm.hotspot.types.AddressField charArrayKlassField; |
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48 private static sun.jvm.hotspot.types.AddressField intArrayKlassField; |
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49 private static sun.jvm.hotspot.types.AddressField shortArrayKlassField; |
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50 private static sun.jvm.hotspot.types.AddressField longArrayKlassField; |
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51 private static sun.jvm.hotspot.types.AddressField singleArrayKlassField; |
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52 private static sun.jvm.hotspot.types.AddressField doubleArrayKlassField; |
0 | 53 |
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54 private static AddressField narrowOopBaseField; |
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55 private static CIntegerField narrowOopShiftField; |
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56 private static AddressField narrowKlassBaseField; |
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57 private static CIntegerField narrowKlassShiftField; |
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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); | |
3972 | 75 heapConstructor.addMapping("G1CollectedHeap", G1CollectedHeap.class); |
0 | 76 |
77 mainThreadGroupField = type.getOopField("_main_thread_group"); | |
78 systemThreadGroupField = type.getOopField("_system_thread_group"); | |
79 | |
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80 boolArrayKlassField = type.getAddressField("_boolArrayKlassObj"); |
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81 byteArrayKlassField = type.getAddressField("_byteArrayKlassObj"); |
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82 charArrayKlassField = type.getAddressField("_charArrayKlassObj"); |
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83 intArrayKlassField = type.getAddressField("_intArrayKlassObj"); |
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84 shortArrayKlassField = type.getAddressField("_shortArrayKlassObj"); |
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85 longArrayKlassField = type.getAddressField("_longArrayKlassObj"); |
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86 singleArrayKlassField = type.getAddressField("_singleArrayKlassObj"); |
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87 doubleArrayKlassField = type.getAddressField("_doubleArrayKlassObj"); |
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88 |
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89 narrowOopBaseField = type.getAddressField("_narrow_oop._base"); |
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90 narrowOopShiftField = type.getCIntegerField("_narrow_oop._shift"); |
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91 narrowKlassBaseField = type.getAddressField("_narrow_klass._base"); |
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92 narrowKlassShiftField = type.getCIntegerField("_narrow_klass._shift"); |
0 | 93 } |
94 | |
95 public Universe() { | |
96 } | |
97 | |
98 public CollectedHeap heap() { | |
99 try { | |
100 return (CollectedHeap) heapConstructor.instantiateWrapperFor(collectedHeapField.getValue()); | |
101 } catch (WrongTypeException e) { | |
102 return new CollectedHeap(collectedHeapField.getValue()); | |
103 } | |
104 } | |
105 | |
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106 public static long getNarrowOopBase() { |
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107 if (narrowOopBaseField.getValue() == null) { |
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108 return 0; |
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109 } else { |
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110 return narrowOopBaseField.getValue().minus(null); |
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111 } |
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112 } |
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113 |
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114 public static int getNarrowOopShift() { |
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115 return (int)narrowOopShiftField.getValue(); |
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116 } |
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117 |
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118 public static long getNarrowKlassBase() { |
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119 if (narrowKlassBaseField.getValue() == null) { |
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120 return 0; |
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121 } else { |
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122 return narrowKlassBaseField.getValue().minus(null); |
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123 } |
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124 } |
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125 |
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126 public static int getNarrowKlassShift() { |
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127 return (int)narrowKlassShiftField.getValue(); |
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128 } |
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129 |
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130 |
0 | 131 /** Returns "TRUE" iff "p" points into the allocated area of the heap. */ |
132 public boolean isIn(Address p) { | |
133 return heap().isIn(p); | |
134 } | |
135 | |
136 /** Returns "TRUE" iff "p" points into the reserved area of the heap. */ | |
137 public boolean isInReserved(Address p) { | |
138 return heap().isInReserved(p); | |
139 } | |
140 | |
141 private Oop newOop(OopHandle handle) { | |
142 return VM.getVM().getObjectHeap().newOop(handle); | |
143 } | |
144 | |
145 public Oop mainThreadGroup() { | |
146 return newOop(mainThreadGroupField.getValue()); | |
147 } | |
148 | |
149 public Oop systemThreadGroup() { | |
150 return newOop(systemThreadGroupField.getValue()); | |
151 } | |
152 | |
153 // iterate through the single dimensional primitive array klasses | |
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154 // refer to basic_type_classes_do(void f(Klass*)) in universe.cpp |
0 | 155 public void basicTypeClassesDo(SystemDictionary.ClassVisitor visitor) { |
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156 visitor.visit(new TypeArrayKlass(boolArrayKlassField.getValue())); |
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157 visitor.visit(new TypeArrayKlass(byteArrayKlassField.getValue())); |
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158 visitor.visit(new TypeArrayKlass(charArrayKlassField.getValue())); |
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159 visitor.visit(new TypeArrayKlass(intArrayKlassField.getValue())); |
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160 visitor.visit(new TypeArrayKlass(shortArrayKlassField.getValue())); |
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161 visitor.visit(new TypeArrayKlass(longArrayKlassField.getValue())); |
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162 visitor.visit(new TypeArrayKlass(singleArrayKlassField.getValue())); |
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163 visitor.visit(new TypeArrayKlass(doubleArrayKlassField.getValue())); |
0 | 164 } |
165 | |
166 public void print() { printOn(System.out); } | |
167 public void printOn(PrintStream tty) { | |
168 heap().printOn(tty); | |
169 } | |
170 | |
171 // Check whether an element of a typeArrayOop with the given type must be | |
172 // aligned 0 mod 8. The typeArrayOop itself must be aligned at least this | |
173 // strongly. | |
174 public static boolean elementTypeShouldBeAligned(BasicType type) { | |
175 return type == BasicType.T_DOUBLE || type == BasicType.T_LONG; | |
176 } | |
177 | |
178 // Check whether an object field (static/non-static) of the given type must be | |
179 // aligned 0 mod 8. | |
180 public static boolean fieldTypeShouldBeAligned(BasicType type) { | |
181 return type == BasicType.T_DOUBLE || type == BasicType.T_LONG; | |
182 } | |
183 } |