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annotate agent/src/share/classes/sun/jvm/hotspot/oops/VirtualCallData.java @ 6972:bd7a7ce2e264

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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 b9a9ed0f8eeb
children
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1 /*
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2 * Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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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.
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22 *
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23 */
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24
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25 package sun.jvm.hotspot.oops;
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26
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27 import java.io.*;
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28 import java.util.*;
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29 import sun.jvm.hotspot.debugger.*;
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30 import sun.jvm.hotspot.runtime.*;
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31 import sun.jvm.hotspot.types.*;
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32 import sun.jvm.hotspot.utilities.*;
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33
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34 // VirtualCallData
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35 //
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36 // A VirtualCallData is used to access profiling information about a
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37 // call. For now, it has nothing more than a ReceiverTypeData.
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38 public class VirtualCallData extends ReceiverTypeData {
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39 public VirtualCallData(DataLayout layout) {
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40 super(layout);
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41 //assert(layout.tag() == DataLayout.virtualCallDataTag, "wrong type");
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42 }
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43
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44 static int staticCellCount() {
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45 // At this point we could add more profile state, e.g., for arguments.
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46 // But for now it's the same size as the base record type.
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47 return ReceiverTypeData.staticCellCount();
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48 }
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49
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50 public int cellCount() {
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51 return staticCellCount();
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52 }
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53
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54 // Direct accessors
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55 static int virtualCallDataSize() {
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56 return cellOffset(staticCellCount());
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57 }
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58
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59 public void printDataOn(PrintStream st) {
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60 printShared(st, "VirtualCallData");
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61 printReceiverDataOn(st);
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62 }
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63 }