Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/ci/ciMethodData.java @ 6725:da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
Summary: Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes
Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland
Contributed-by: jmasa <jon.masamitsu@oracle.com>, stefank <stefan.karlsson@oracle.com>, mgerdin <mikael.gerdin@oracle.com>, never <tom.rodriguez@oracle.com>
| author | coleenp |
|---|---|
| date | Sat, 01 Sep 2012 13:25:18 -0400 |
| parents | f6f3bb0ee072 |
| children | bd7a7ce2e264 |
| rev | line source |
|---|---|
| 3939 | 1 /* |
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6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3939
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changeset
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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 * | |
| 19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
| 20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
| 21 * have any questions. | |
| 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.runtime.*; | |
| 31 import sun.jvm.hotspot.oops.*; | |
| 32 import sun.jvm.hotspot.types.*; | |
| 33 | |
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6725
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6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3939
diff
changeset
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34 public class ciMethodData extends ciMetadata { |
| 3939 | 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("ciMethodData"); | |
| 45 origField = type.getAddressField("_orig"); | |
| 46 currentMileageField = new CIntField(type.getCIntegerField("_current_mileage"), 0); | |
| 47 argReturnedField = new CIntField(type.getCIntegerField("_arg_returned"), 0); | |
| 48 argStackField = new CIntField(type.getCIntegerField("_arg_stack"), 0); | |
| 49 argLocalField = new CIntField(type.getCIntegerField("_arg_local"), 0); | |
| 50 eflagsField = new CIntField(type.getCIntegerField("_eflags"), 0); | |
| 51 hintDiField = new CIntField(type.getCIntegerField("_hint_di"), 0); | |
| 52 currentMileageField = new CIntField(type.getCIntegerField("_current_mileage"), 0); | |
| 53 dataField = type.getAddressField("_data"); | |
| 54 extraDataSizeField = new CIntField(type.getCIntegerField("_extra_data_size"), 0); | |
| 55 dataSizeField = new CIntField(type.getCIntegerField("_data_size"), 0); | |
| 56 stateField = new CIntField(type.getCIntegerField("_state"), 0); | |
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6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3939
diff
changeset
|
57 sizeofMethodDataOopDesc = (int)db.lookupType("MethodData").getSize();; |
| 3939 | 58 } |
| 59 | |
| 60 private static AddressField origField; | |
| 61 private static CIntField currentMileageField; | |
| 62 private static CIntField argReturnedField; | |
| 63 private static CIntField argStackField; | |
| 64 private static CIntField argLocalField; | |
| 65 private static CIntField eflagsField; | |
| 66 private static CIntField hintDiField; | |
| 67 private static AddressField dataField; | |
| 68 private static CIntField extraDataSizeField; | |
| 69 private static CIntField dataSizeField; | |
| 70 private static CIntField stateField; | |
| 71 private static int sizeofMethodDataOopDesc; | |
| 72 | |
| 73 public ciMethodData(Address addr) { | |
| 74 super(addr); | |
| 75 } | |
| 76 | |
| 77 private byte[] fetchDataAt(Address base, long size) { | |
| 78 byte[] result = new byte[(int)size]; | |
| 79 for (int i = 0; i < size; i++) { | |
| 80 result[i] = base.getJByteAt(i); | |
| 81 } | |
| 82 return result; | |
| 83 } | |
| 84 | |
| 85 public byte[] orig() { | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3939
diff
changeset
|
86 // fetch the orig MethodData data between header and dataSize |
| 3939 | 87 Address base = getAddress().addOffsetTo(origField.getOffset()); |
| 88 byte[] result = new byte[MethodData.sizeofMethodDataOopDesc]; | |
| 89 for (int i = 0; i < MethodData.sizeofMethodDataOopDesc; i++) { | |
| 90 result[i] = base.getJByteAt(i); | |
| 91 } | |
| 92 return result; | |
| 93 } | |
| 94 | |
| 95 public long[] data() { | |
| 96 // Read the data as an array of intptr_t elements | |
| 97 Address base = dataField.getValue(getAddress()); | |
| 98 int elements = dataSize() / MethodData.cellSize; | |
| 99 long[] result = new long[elements]; | |
| 100 for (int i = 0; i < elements; i++) { | |
| 101 Address value = base.getAddressAt(i * MethodData.cellSize); | |
| 102 if (value != null) { | |
| 103 result[i] = value.minus(null); | |
| 104 } | |
| 105 } | |
| 106 return result; | |
| 107 } | |
| 108 | |
| 109 int dataSize() { | |
| 110 return (int)dataSizeField.getValue(getAddress()); | |
| 111 } | |
| 112 | |
| 113 int state() { | |
| 114 return (int)stateField.getValue(getAddress()); | |
| 115 } | |
| 116 | |
| 117 int currentMileage() { | |
| 118 return (int)currentMileageField.getValue(getAddress()); | |
| 119 } | |
| 120 | |
| 121 boolean outOfBounds(int dataIndex) { | |
| 122 return dataIndex >= dataSize(); | |
| 123 } | |
| 124 | |
| 125 ProfileData dataAt(int dataIndex) { | |
| 126 if (outOfBounds(dataIndex)) { | |
| 127 return null; | |
| 128 } | |
| 129 DataLayout dataLayout = new DataLayout(dataField.getValue(getAddress()), dataIndex); | |
| 130 | |
| 131 switch (dataLayout.tag()) { | |
| 132 case DataLayout.noTag: | |
| 133 default: | |
| 134 throw new InternalError(); | |
| 135 case DataLayout.bitDataTag: | |
| 136 return new BitData(dataLayout); | |
| 137 case DataLayout.counterDataTag: | |
| 138 return new CounterData(dataLayout); | |
| 139 case DataLayout.jumpDataTag: | |
| 140 return new JumpData(dataLayout); | |
| 141 case DataLayout.receiverTypeDataTag: | |
| 142 return new ciReceiverTypeData(dataLayout); | |
| 143 case DataLayout.virtualCallDataTag: | |
| 144 return new ciVirtualCallData(dataLayout); | |
| 145 case DataLayout.retDataTag: | |
| 146 return new RetData(dataLayout); | |
| 147 case DataLayout.branchDataTag: | |
| 148 return new BranchData(dataLayout); | |
| 149 case DataLayout.multiBranchDataTag: | |
| 150 return new MultiBranchData(dataLayout); | |
| 151 } | |
| 152 } | |
| 153 | |
| 154 int dpToDi(int dp) { | |
| 155 return dp; | |
| 156 } | |
| 157 | |
| 158 int firstDi() { return 0; } | |
| 159 ProfileData firstData() { return dataAt(firstDi()); } | |
| 160 ProfileData nextData(ProfileData current) { | |
| 161 int currentIndex = dpToDi(current.dp()); | |
| 162 int nextIndex = currentIndex + current.sizeInBytes(); | |
| 163 return dataAt(nextIndex); | |
| 164 } | |
| 165 boolean isValid(ProfileData current) { return current != null; } | |
| 166 | |
| 167 public void printDataOn(PrintStream st) { | |
| 168 ProfileData data = firstData(); | |
| 169 for ( ; isValid(data); data = nextData(data)) { | |
| 170 st.print(dpToDi(data.dp())); | |
| 171 st.print(" "); | |
| 172 // st->fillTo(6); | |
| 173 data.printDataOn(st); | |
| 174 } | |
| 175 } | |
| 176 | |
| 177 } |