Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/oops/Field.java @ 6972:bd7a7ce2e264
6830717: replay of compilations would help with debugging
Summary: When java process crashed in compiler thread, repeat the compilation process will help finding root cause. This is done with using SA dump application class data and replay data from core dump, then use debug version of jvm to recompile the problematic java method.
Reviewed-by: kvn, twisti, sspitsyn
Contributed-by: yumin.qi@oracle.com
| author | minqi |
|---|---|
| date | Mon, 12 Nov 2012 14:03:53 -0800 |
| parents | da91efe96a93 |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3939
diff
changeset
|
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
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
0
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
0
diff
changeset
|
20 * or visit www.oracle.com if you need additional information or have any |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
0
diff
changeset
|
21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 25 package sun.jvm.hotspot.oops; | |
| 26 | |
| 27 import java.io.*; | |
| 28 | |
| 29 import sun.jvm.hotspot.runtime.*; | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3939
diff
changeset
|
30 import sun.jvm.hotspot.utilities.*; |
| 0 | 31 |
| 32 // Super class for all fields in an object | |
| 33 public class Field { | |
| 34 | |
| 35 Field(FieldIdentifier id, long offset, boolean isVMField) { | |
| 36 this.offset = offset; | |
| 37 this.id = id; | |
| 38 this.isVMField = isVMField; | |
| 39 } | |
| 40 | |
| 41 /** Constructor for fields that are named in an InstanceKlass's | |
| 42 fields array (i.e., named, non-VM fields) */ | |
| 3938 | 43 Field(InstanceKlass holder, int fieldIndex) { |
| 0 | 44 this.holder = holder; |
| 3938 | 45 this.fieldIndex = fieldIndex; |
| 46 | |
| 47 offset = holder.getFieldOffset(fieldIndex); | |
| 48 genericSignature = holder.getFieldGenericSignature(fieldIndex); | |
| 0 | 49 |
| 3938 | 50 Symbol name = holder.getFieldName(fieldIndex); |
| 0 | 51 id = new NamedFieldIdentifier(name.asString()); |
| 52 | |
| 3938 | 53 signature = holder.getFieldSignature(fieldIndex); |
| 0 | 54 fieldType = new FieldType(signature); |
| 3938 | 55 |
| 56 short access = holder.getFieldAccessFlags(fieldIndex); | |
| 0 | 57 accessFlags = new AccessFlags(access); |
| 58 } | |
| 59 | |
| 60 private long offset; | |
| 61 private FieldIdentifier id; | |
| 62 private boolean isVMField; | |
| 63 // Java fields only | |
| 64 private InstanceKlass holder; | |
| 65 private FieldType fieldType; | |
| 66 private Symbol signature; | |
| 67 private Symbol genericSignature; | |
| 68 private AccessFlags accessFlags; | |
| 3938 | 69 private int fieldIndex; |
| 0 | 70 |
| 71 /** Returns the byte offset of the field within the object or klass */ | |
| 72 public long getOffset() { return offset; } | |
| 73 | |
| 74 /** Returns the identifier of the field */ | |
| 75 public FieldIdentifier getID() { return id; } | |
| 76 | |
| 77 /** Indicates whether this is a VM field */ | |
| 78 public boolean isVMField() { return isVMField; } | |
| 79 | |
| 80 /** Indicates whether this is a named field */ | |
| 81 public boolean isNamedField() { return (id instanceof NamedFieldIdentifier); } | |
| 82 | |
| 83 public void printOn(PrintStream tty) { | |
| 84 getID().printOn(tty); | |
| 85 tty.print(" {" + getOffset() + "} :"); | |
| 86 } | |
| 87 | |
| 88 /** (Named, non-VM fields only) Returns the InstanceKlass containing | |
| 89 this (static or non-static) field. */ | |
| 90 public InstanceKlass getFieldHolder() { | |
| 91 return holder; | |
| 92 } | |
| 93 | |
| 94 /** (Named, non-VM fields only) Returns the index in the fields | |
| 95 TypeArray for this field. Equivalent to the "index" in the VM's | |
| 96 fieldDescriptors. */ | |
| 3938 | 97 public int getFieldIndex() { |
| 98 return fieldIndex; | |
| 0 | 99 } |
| 100 | |
| 101 /** (Named, non-VM fields only) Retrieves the access flags. */ | |
| 102 public long getAccessFlags() { return accessFlags.getValue(); } | |
| 103 public AccessFlags getAccessFlagsObj() { return accessFlags; } | |
| 104 | |
| 105 /** (Named, non-VM fields only) Returns the type of this field. */ | |
| 106 public FieldType getFieldType() { return fieldType; } | |
| 107 | |
| 108 /** (Named, non-VM fields only) Returns the signature of this | |
| 109 field. */ | |
| 110 public Symbol getSignature() { return signature; } | |
| 111 public Symbol getGenericSignature() { return genericSignature; } | |
| 112 | |
|
6972
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6725
diff
changeset
|
113 public boolean hasInitialValue() { return holder.getFieldInitialValueIndex(fieldIndex) != 0; } |
|
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6725
diff
changeset
|
114 |
| 0 | 115 // |
| 116 // Following acccessors are for named, non-VM fields only | |
| 117 // | |
| 118 public boolean isPublic() { return accessFlags.isPublic(); } | |
| 119 public boolean isPrivate() { return accessFlags.isPrivate(); } | |
| 120 public boolean isProtected() { return accessFlags.isProtected(); } | |
| 121 public boolean isPackagePrivate() { return !isPublic() && !isPrivate() && !isProtected(); } | |
| 122 | |
| 123 public boolean isStatic() { return accessFlags.isStatic(); } | |
| 124 public boolean isFinal() { return accessFlags.isFinal(); } | |
| 125 public boolean isVolatile() { return accessFlags.isVolatile(); } | |
| 126 public boolean isTransient() { return accessFlags.isTransient(); } | |
| 127 | |
| 128 public boolean isSynthetic() { return accessFlags.isSynthetic(); } | |
| 129 public boolean isEnumConstant() { return accessFlags.isEnum(); } | |
| 130 | |
| 131 public boolean equals(Object obj) { | |
| 132 if (obj == null) { | |
| 133 return false; | |
| 134 } | |
| 135 | |
| 136 if (! (obj instanceof Field)) { | |
| 137 return false; | |
| 138 } | |
| 139 | |
| 140 Field other = (Field) obj; | |
| 141 return this.getFieldHolder().equals(other.getFieldHolder()) && | |
| 142 this.getID().equals(other.getID()); | |
| 143 } | |
| 144 | |
| 145 public int hashCode() { | |
| 146 return getFieldHolder().hashCode() ^ getID().hashCode(); | |
| 147 } | |
| 148 } |