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comparison agent/src/share/classes/sun/jvm/hotspot/ci/ciSymbol.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 79f492f184d0
comparison
equal deleted inserted replaced
6724:36d1d483d5d6 6725:da91efe96a93
1 /* 1 /*
2 * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved. 2 * Copyright (c) 2011, 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.
29 import sun.jvm.hotspot.debugger.*; 29 import sun.jvm.hotspot.debugger.*;
30 import sun.jvm.hotspot.runtime.*; 30 import sun.jvm.hotspot.runtime.*;
31 import sun.jvm.hotspot.oops.*; 31 import sun.jvm.hotspot.oops.*;
32 import sun.jvm.hotspot.types.*; 32 import sun.jvm.hotspot.types.*;
33 33
34 public class ciSymbol extends VMObject { 34 public class ciSymbol extends ciMetadata {
35 static { 35 static {
36 VM.registerVMInitializedObserver(new Observer() { 36 VM.registerVMInitializedObserver(new Observer() {
37 public void update(Observable o, Object data) { 37 public void update(Observable o, Object data) {
38 initialize(VM.getVM().getTypeDataBase()); 38 initialize(VM.getVM().getTypeDataBase());
39 } 39 }
40 }); 40 });
41 } 41 }
42 42
43 private static synchronized void initialize(TypeDataBase db) throws WrongTypeException { 43 private static synchronized void initialize(TypeDataBase db) throws WrongTypeException {
44 Type type = db.lookupType("ciSymbol"); 44 Type type = db.lookupType("ciSymbol");
45 identField = type.getCIntegerField("_ident");
46 symbolField = type.getAddressField("_symbol"); 45 symbolField = type.getAddressField("_symbol");
47 } 46 }
48 47
49 private static AddressField symbolField; 48 private static AddressField symbolField;
50 private static CIntegerField identField;
51 49
52 public String asUtf88() { 50 public String asUtf88() {
53 Symbol sym = Symbol.create(symbolField.getValue(getAddress())); 51 Symbol sym = Symbol.create(symbolField.getValue(getAddress()));
54 return sym.asString(); 52 return sym.asString();
55 } 53 }