Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/oops/ProfileData.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 | 79f492f184d0 |
| rev | line source |
|---|---|
| 3939 | 1 /* |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3939
diff
changeset
|
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.oops; | |
| 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.types.*; | |
| 32 import sun.jvm.hotspot.utilities.*; | |
| 33 | |
| 34 public abstract class ProfileData { | |
| 35 // This is a pointer to a section of profiling data. | |
| 36 private DataLayout _data; | |
| 37 | |
| 38 public DataLayout data() { return _data; } | |
| 39 | |
| 40 // How many cells are in this? | |
| 41 public abstract int cellCount(); | |
| 42 | |
| 43 | |
| 44 // Return the size of this data. | |
| 45 public int sizeInBytes() { | |
| 46 return DataLayout.computeSizeInBytes(cellCount()); | |
| 47 } | |
| 48 | |
| 49 public int dp() { | |
| 50 return data().dp(); | |
| 51 } | |
| 52 | |
| 53 // Low-level accessors for underlying data | |
| 54 int intptrAt(int index) { | |
| 55 //assert(0 <= index && index < cellCount(), "oob"); | |
| 56 return data().cellAt(index); | |
| 57 } | |
| 58 int intAt(int index) { | |
| 59 return (int)intptrAt(index); | |
| 60 } | |
| 61 int uintAt(int index) { | |
| 62 return (int)intptrAt(index); | |
| 63 } | |
| 64 public Address addressAt(int index) { | |
| 65 return data().addressAt(index); | |
| 66 } | |
| 67 | |
| 68 boolean flagAt(int flagNumber) { | |
| 69 return data().flagAt(flagNumber); | |
| 70 } | |
| 71 | |
| 72 // two convenient imports for use by subclasses: | |
| 73 public static int cellOffset(int index) { | |
| 74 return DataLayout.cellOffset(index); | |
| 75 } | |
| 76 | |
| 77 public ProfileData(DataLayout data) { | |
| 78 _data = data; | |
| 79 } | |
| 80 | |
| 81 // Constructor for invalid ProfileData. | |
| 82 ProfileData() { | |
| 83 _data = null; | |
| 84 } | |
| 85 | |
| 86 int bci() { | |
| 87 return data().bci(); | |
| 88 } | |
| 89 | |
| 90 int trapState() { | |
| 91 return data().trapState(); | |
| 92 } | |
| 93 public abstract void printDataOn(PrintStream st); | |
| 94 | |
| 95 void tab(PrintStream st) { | |
| 96 st.print("\t"); | |
| 97 } | |
| 98 | |
| 99 void printShared(PrintStream st, String name) { | |
| 100 st.print("bci: " + bci()); | |
| 101 // st.fillTo(tabWidthOne); | |
| 102 st.print(" " + name + " "); | |
| 103 tab(st); | |
| 104 int trap = trapState(); | |
| 105 if (trap != 0) { | |
| 106 st.print("trap(" + MethodData.formatTrapState(trap) + ") "); | |
| 107 } | |
| 108 int flags = data().flags(); | |
| 109 if (flags != 0) | |
| 110 st.print("flags(" + flags + ") "); | |
| 111 } | |
| 112 | |
| 113 public String toString() { | |
| 114 ByteArrayOutputStream baos = new ByteArrayOutputStream(); | |
| 115 PrintStream ps = new PrintStream(baos); | |
| 116 try { | |
| 117 printDataOn(ps); | |
| 118 } finally { | |
| 119 ps.close(); | |
| 120 } | |
| 121 return baos.toString(); | |
| 122 } | |
| 123 } |