Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/ci/ciInstanceKlass.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 | bd7a7ce2e264 |
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rev | line source |
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3939 | 1 /* |
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2 * Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved. |
3939 | 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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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. |
3939 | 22 * |
23 */ | |
24 | |
25 package sun.jvm.hotspot.ci; | |
26 | |
27 import java.io.*; | |
28 import java.util.*; | |
29 import sun.jvm.hotspot.debugger.*; | |
30 import sun.jvm.hotspot.memory.SystemDictionary; | |
31 import sun.jvm.hotspot.runtime.*; | |
32 import sun.jvm.hotspot.oops.*; | |
33 import sun.jvm.hotspot.types.Type; | |
34 import sun.jvm.hotspot.types.TypeDataBase; | |
35 import sun.jvm.hotspot.types.WrongTypeException; | |
36 | |
37 public class ciInstanceKlass extends ciKlass { | |
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("ciInstanceKlass"); | |
48 initStateField = new CIntField(type.getCIntegerField("_init_state"), 0); | |
49 isSharedField = new CIntField(type.getCIntegerField("_is_shared"), 0); | |
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50 CLASS_STATE_LINKED = db.lookupIntConstant("InstanceKlass::linked").intValue(); |
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51 CLASS_STATE_FULLY_INITIALIZED = db.lookupIntConstant("InstanceKlass::fully_initialized").intValue(); |
3939 | 52 } |
53 | |
54 private static CIntField initStateField; | |
55 private static CIntField isSharedField; | |
56 private static int CLASS_STATE_LINKED; | |
57 private static int CLASS_STATE_FULLY_INITIALIZED; | |
58 | |
59 public ciInstanceKlass(Address addr) { | |
60 super(addr); | |
61 } | |
62 | |
63 public int initState() { | |
64 int initState = (int)initStateField.getValue(getAddress()); | |
65 if (isShared() && initState < CLASS_STATE_LINKED) { | |
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66 InstanceKlass ik = (InstanceKlass)getMetadata(); |
3939 | 67 initState = ik.getInitStateAsInt(); |
68 } | |
69 return initState; | |
70 } | |
71 | |
72 public boolean isShared() { | |
73 return isSharedField.getValue(getAddress()) != 0; | |
74 } | |
75 | |
76 public boolean isLinked() { | |
77 return initState() >= CLASS_STATE_LINKED; | |
78 } | |
79 | |
80 public boolean isInitialized() { | |
81 return initState() == CLASS_STATE_FULLY_INITIALIZED; | |
82 } | |
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83 |
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84 public void dumpReplayData(PrintStream out) { |
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85 InstanceKlass ik = (InstanceKlass)getMetadata(); |
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86 ConstantPool cp = ik.getConstants(); |
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87 |
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88 // Try to record related loaded classes |
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89 Klass sub = ik.getSubklassKlass(); |
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90 while (sub != null) { |
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91 if (sub instanceof InstanceKlass) { |
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92 out.println("instanceKlass " + sub.getName().asString()); |
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93 } |
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94 sub = sub.getNextSiblingKlass(); |
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95 } |
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96 |
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97 final int length = (int) cp.getLength(); |
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98 out.print("ciInstanceKlass " + name() + " " + (isLinked() ? 1 : 0) + " " + (isInitialized() ? 1 : 0) + " " + length); |
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99 for (int index = 1; index < length; index++) { |
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100 out.print(" " + cp.getTags().at(index)); |
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101 } |
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102 out.println(); |
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103 if (isInitialized()) { |
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104 Field[] staticFields = ik.getStaticFields(); |
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105 for (int i = 0; i < staticFields.length; i++) { |
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106 Field f = staticFields[i]; |
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107 Oop mirror = ik.getJavaMirror(); |
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108 if (f.isFinal() && !f.hasInitialValue()) { |
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109 out.print("staticfield " + name() + " " + |
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110 OopUtilities.escapeString(f.getID().getName()) + " " + |
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111 f.getFieldType().getSignature().asString() + " "); |
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112 if (f instanceof ByteField) { |
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113 ByteField bf = (ByteField)f; |
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114 out.println(bf.getValue(mirror)); |
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115 } else if (f instanceof BooleanField) { |
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116 BooleanField bf = (BooleanField)f; |
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117 out.println(bf.getValue(mirror) ? 1 : 0); |
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118 } else if (f instanceof ShortField) { |
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119 ShortField bf = (ShortField)f; |
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120 out.println(bf.getValue(mirror)); |
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121 } else if (f instanceof CharField) { |
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122 CharField bf = (CharField)f; |
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123 out.println(bf.getValue(mirror) & 0xffff); |
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124 } else if (f instanceof IntField) { |
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125 IntField bf = (IntField)f; |
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126 out.println(bf.getValue(mirror)); |
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127 } else if (f instanceof LongField) { |
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128 LongField bf = (LongField)f; |
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129 out.println(bf.getValue(mirror)); |
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130 } else if (f instanceof FloatField) { |
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131 FloatField bf = (FloatField)f; |
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132 out.println(Float.floatToRawIntBits(bf.getValue(mirror))); |
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133 } else if (f instanceof DoubleField) { |
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134 DoubleField bf = (DoubleField)f; |
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135 out.println(Double.doubleToRawLongBits(bf.getValue(mirror))); |
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136 } else if (f instanceof OopField) { |
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137 OopField bf = (OopField)f; |
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138 Oop value = bf.getValue(mirror); |
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139 if (value == null) { |
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140 out.println("null"); |
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141 } else if (value.isInstance()) { |
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142 Instance inst = (Instance)value; |
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143 if (inst.isA(SystemDictionary.getStringKlass())) { |
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144 out.println("\"" + OopUtilities.stringOopToEscapedString(inst) + "\""); |
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145 } else { |
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146 out.println(inst.getKlass().getName().asString()); |
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147 } |
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148 } else if (value.isObjArray()) { |
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149 ObjArray oa = (ObjArray)value; |
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150 Klass ek = (ObjArrayKlass)oa.getKlass(); |
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151 out.println(oa.getLength() + " " + ek.getName().asString()); |
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152 } else if (value.isTypeArray()) { |
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153 TypeArray ta = (TypeArray)value; |
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154 out.println(ta.getLength()); |
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155 } else { |
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156 out.println(value); |
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157 } |
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158 } |
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159 } |
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160 } |
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161 } |
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162 } |
3939 | 163 } |