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comparison agent/src/share/classes/sun/jvm/hotspot/oops/MethodData.java @ 6725:da91efe96a93

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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
comparison
equal deleted inserted replaced
6724:36d1d483d5d6 6725:da91efe96a93
1 /* 1 /*
2 * Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved. 2 * Copyright (c) 2000, 2012, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 * 4 *
5 * This code is free software; you can redistribute it and/or modify it 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 6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. 7 * published by the Free Software Foundation.
31 import sun.jvm.hotspot.types.*; 31 import sun.jvm.hotspot.types.*;
32 import sun.jvm.hotspot.utilities.*; 32 import sun.jvm.hotspot.utilities.*;
33 33
34 // A MethodData provides interpreter profiling information 34 // A MethodData provides interpreter profiling information
35 35
36 public class MethodData extends Oop { 36 public class MethodData extends Metadata {
37 static int TypeProfileWidth = 2; 37 static int TypeProfileWidth = 2;
38 static int BciProfileWidth = 2; 38 static int BciProfileWidth = 2;
39 static int CompileThreshold; 39 static int CompileThreshold;
40 40
41 static int Reason_many; // indicates presence of several reasons 41 static int Reason_many; // indicates presence of several reasons
127 } 127 }
128 }); 128 });
129 } 129 }
130 130
131 private static synchronized void initialize(TypeDataBase db) throws WrongTypeException { 131 private static synchronized void initialize(TypeDataBase db) throws WrongTypeException {
132 Type type = db.lookupType("methodDataOopDesc"); 132 Type type = db.lookupType("MethodData");
133 baseOffset = type.getSize(); 133 baseOffset = type.getSize();
134 134
135 size = new CIntField(type.getCIntegerField("_size"), 0); 135 size = new CIntField(type.getCIntegerField("_size"), 0);
136 method = new OopField(type.getOopField("_method"), 0); 136 method = new MetadataField(type.getAddressField("_method"), 0);
137 137
138 VM.Flag[] flags = VM.getVM().getCommandLineFlags(); 138 VM.Flag[] flags = VM.getVM().getCommandLineFlags();
139 for (int f = 0; f < flags.length; f++) { 139 for (int f = 0; f < flags.length; f++) {
140 VM.Flag flag = flags[f]; 140 VM.Flag flag = flags[f];
141 if (flag.getName().equals("TypeProfileWidth")) { 141 if (flag.getName().equals("TypeProfileWidth")) {
186 } 186 }
187 System.out.println(trapReasonName[index]); 187 System.out.println(trapReasonName[index]);
188 } 188 }
189 } 189 }
190 190
191 MethodData(OopHandle handle, ObjectHeap heap) { 191 public MethodData(Address addr) {
192 super(handle, heap); 192 super(addr);
193 } 193 }
194 194
195 public boolean isMethodData() { return true; } 195 public boolean isMethodData() { return true; }
196 196
197 private static long baseOffset; 197 private static long baseOffset;
198 private static CIntField size; 198 private static CIntField size;
199 private static OopField method; 199 private static MetadataField method;
200 private static CIntField dataSize; 200 private static CIntField dataSize;
201 private static AddressField data; 201 private static AddressField data;
202 202
203 public static int sizeofMethodDataOopDesc; 203 public static int sizeofMethodDataOopDesc;
204 public static int cellSize; 204 public static int cellSize;
205
206 public long getObjectSize() {
207 return alignObjectSize(size.getValue(this));
208 }
209 205
210 public Method getMethod() { 206 public Method getMethod() {
211 return (Method) method.getValue(this); 207 return (Method) method.getValue(this);
212 } 208 }
213 209
214 public void printValueOn(PrintStream tty) { 210 public void printValueOn(PrintStream tty) {
215 Method m = getMethod(); 211 Method m = getMethod();
216 tty.print("MethodData for " + m.getName().asString() + m.getSignature().asString()); 212 tty.print("MethodData for " + m.getName().asString() + m.getSignature().asString());
217 } 213 }
218 214
219 public void iterateFields(OopVisitor visitor, boolean doVMFields) { 215 public void iterateFields(MetadataVisitor visitor) {
220 super.iterateFields(visitor, doVMFields); 216 super.iterateFields(visitor);
221 if (doVMFields) { 217 visitor.doMetadata(method, true);
222 visitor.doOop(method, true);
223 visitor.doCInt(size, true); 218 visitor.doCInt(size, true);
224 } 219 }
225 }
226 220
227 int dataSize() { 221 int dataSize() {
228 if (dataSize == null) { 222 if (dataSize == null) {
229 return 0; 223 return 0;
230 } else { 224 } else {
231 return (int)dataSize.getValue(this); 225 return (int)dataSize.getValue(getAddress());
232 } 226 }
233 } 227 }
234 228
235 boolean outOfBounds(int dataIndex) { 229 boolean outOfBounds(int dataIndex) {
236 return dataIndex >= dataSize(); 230 return dataIndex >= dataSize();
296 } 290 }
297 return result; 291 return result;
298 } 292 }
299 293
300 public byte[] orig() { 294 public byte[] orig() {
301 // fetch the orig methodDataOopDesc data between header and dataSize 295 // fetch the orig MethodData data between header and dataSize
302 return fetchDataAt(this.getHandle(), 0, sizeofMethodDataOopDesc); 296 return fetchDataAt(getAddress(), 0, sizeofMethodDataOopDesc);
303 } 297 }
304 298
305 public long[] data() { 299 public long[] data() {
306 // Read the data as an array of intptr_t elements 300 // Read the data as an array of intptr_t elements
307 OopHandle base = getHandle(); 301 Address base = getAddress();
308 long offset = data.getOffset(); 302 long offset = data.getOffset();
309 int elements = dataSize() / cellSize; 303 int elements = dataSize() / cellSize;
310 long[] result = new long[elements]; 304 long[] result = new long[elements];
311 for (int i = 0; i < elements; i++) { 305 for (int i = 0; i < elements; i++) {
312 Address value = base.getAddressAt(offset + i * MethodData.cellSize); 306 Address value = base.getAddressAt(offset + i * MethodData.cellSize);