Mercurial > hg > truffle
diff agent/src/share/classes/sun/jvm/hotspot/memory/PlaceholderEntry.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 | 1d1603768966 |
| children |
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--- a/agent/src/share/classes/sun/jvm/hotspot/memory/PlaceholderEntry.java Fri Aug 31 16:39:35 2012 -0700 +++ b/agent/src/share/classes/sun/jvm/hotspot/memory/PlaceholderEntry.java Sat Sep 01 13:25:18 2012 -0400 @@ -1,5 +1,5 @@ /* - * Copyright (c) 2003, 2011, Oracle and/or its affiliates. All rights reserved. + * Copyright (c) 2003, 2012, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it @@ -25,6 +25,7 @@ package sun.jvm.hotspot.memory; import java.util.*; +import sun.jvm.hotspot.classfile.ClassLoaderData; import sun.jvm.hotspot.debugger.*; import sun.jvm.hotspot.oops.*; import sun.jvm.hotspot.types.*; @@ -42,15 +43,19 @@ private static synchronized void initialize(TypeDataBase db) { Type type = db.lookupType("PlaceholderEntry"); - loaderField = type.getOopField("_loader"); + loaderDataField = type.getAddressField("_loader_data"); } // Field - private static sun.jvm.hotspot.types.OopField loaderField; + private static AddressField loaderDataField; // Accessor public Oop loader() { - return VM.getVM().getObjectHeap().newOop(loaderField.getValue(addr)); + return loaderData().getClassLoader(); + } + + public ClassLoaderData loaderData() { + return ClassLoaderData.instantiateWrapperFor(loaderDataField.getValue(addr)); } public PlaceholderEntry(Address addr) {