annotate agent/src/share/classes/sun/jvm/hotspot/memory/PlaceholderTable.java @ 1913:3b2dea75431e

6984311: JSR 292 needs optional bootstrap method parameters Summary: Allow CONSTANT_InvokeDynamic nodes to have any number of extra operands. Reviewed-by: twisti
author jrose
date Sat, 30 Oct 2010 13:08:23 -0700
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1 /*
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2 * Copyright (c) 2003, 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.memory;
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27 import sun.jvm.hotspot.debugger.*;
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28 import sun.jvm.hotspot.oops.*;
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29 import sun.jvm.hotspot.runtime.*;
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30 import sun.jvm.hotspot.utilities.*;
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31
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32 public class PlaceholderTable extends TwoOopHashtable {
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33 public PlaceholderTable(Address addr) {
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34 super(addr);
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35 }
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36
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37 // this is overriden here so that Hashtable.bucket will return
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38 // object of PlacholderEntry.class
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39 protected Class getHashtableEntryClass() {
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40 return PlaceholderEntry.class;
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41 }
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42
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43 /** All array classes of primitive type, and their class loaders */
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44 public void primArrayClassesDo(SystemDictionary.ClassAndLoaderVisitor v) {
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45 ObjectHeap heap = VM.getVM().getObjectHeap();
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46 int tblSize = tableSize();
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47 for (int index = 0; index < tblSize; index++) {
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48 for (PlaceholderEntry probe = (PlaceholderEntry) bucket(index); probe != null;
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49 probe = (PlaceholderEntry) probe.next()) {
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50 Symbol sym = probe.klass();
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51 // array of primitive arrays are stored in system dictionary as placeholders
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52 FieldType ft = new FieldType(sym);
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53 if (ft.isArray()) {
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54 FieldType.ArrayInfo info = ft.getArrayInfo();
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55 if (info.elementBasicType() != BasicType.getTObject()) {
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56 Klass arrayKlass = heap.typeArrayKlassObj(info.elementBasicType());
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57 arrayKlass = arrayKlass.arrayKlassOrNull(info.dimension());
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58 v.visit(arrayKlass, probe.loader());
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59 }
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60 }
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61 }
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62 }
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63 }
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64 }