Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/ci/ciConstant.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 | f6f3bb0ee072 |
| children |
| rev | line source |
|---|---|
| 3939 | 1 /* |
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6830717: replay of compilations would help with debugging
minqi
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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 * | |
|
6972
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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minqi
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20 * or visit www.oracle.com if you need additional information or have any |
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bd7a7ce2e264
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minqi
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21 * questions. |
| 3939 | 22 * |
| 23 */ | |
| 24 | |
| 25 package sun.jvm.hotspot.ci; | |
| 26 | |
| 27 import java.io.PrintStream; | |
| 28 import java.util.*; | |
| 29 import sun.jvm.hotspot.debugger.*; | |
| 30 import sun.jvm.hotspot.runtime.*; | |
| 31 import sun.jvm.hotspot.oops.*; | |
| 32 import sun.jvm.hotspot.types.*; | |
| 33 | |
| 34 public class ciConstant extends VMObject { | |
| 35 static { | |
| 36 VM.registerVMInitializedObserver(new Observer() { | |
| 37 public void update(Observable o, Object data) { | |
| 38 initialize(VM.getVM().getTypeDataBase()); | |
| 39 } | |
| 40 }); | |
| 41 } | |
| 42 | |
| 43 private static synchronized void initialize(TypeDataBase db) throws WrongTypeException { | |
| 44 Type type = db.lookupType("ciConstant"); | |
| 45 valueObjectField = type.getAddressField("_value._object"); | |
| 46 valueDoubleField = type.getJDoubleField("_value._double"); | |
| 47 valueFloatField = type.getJFloatField("_value._float"); | |
| 48 valueLongField = type.getJLongField("_value._long"); | |
| 49 valueIntField = type.getJIntField("_value._int"); | |
| 50 typeField = new CIntField(type.getCIntegerField("_type"), 0); | |
| 51 } | |
| 52 | |
| 53 private static AddressField valueObjectField; | |
| 54 private static JDoubleField valueDoubleField; | |
| 55 private static JFloatField valueFloatField; | |
| 56 private static JLongField valueLongField; | |
| 57 private static JIntField valueIntField; | |
| 58 private static CIntField typeField; | |
| 59 | |
| 60 public ciConstant(Address addr) { | |
| 61 super(addr); | |
| 62 } | |
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6972
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
3939
diff
changeset
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63 |
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bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
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diff
changeset
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64 public void dumpReplayData(PrintStream out) { |
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bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
3939
diff
changeset
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65 // Nothing to be done |
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bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
3939
diff
changeset
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66 } |
| 3939 | 67 } |