Mercurial > hg > truffle
diff agent/src/share/classes/sun/jvm/hotspot/utilities/ReversePtrsAnalysis.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 | 63997f575155 |
| children |
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--- a/agent/src/share/classes/sun/jvm/hotspot/utilities/ReversePtrsAnalysis.java Fri Aug 31 16:39:35 2012 -0700 +++ b/agent/src/share/classes/sun/jvm/hotspot/utilities/ReversePtrsAnalysis.java Sat Sep 01 13:25:18 2012 -0400 @@ -1,5 +1,5 @@ /* - * Copyright (c) 2002, 2011, Oracle and/or its affiliates. All rights reserved. + * Copyright (c) 2002, 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 @@ -112,20 +112,22 @@ doJNIHandleBlock(handles.weakGlobalHandles(), new RootVisitor("Weak global JNI handle root")); - // Do Java-level static fields in perm gen - heap.iteratePerm(new DefaultHeapVisitor() { - public boolean doObj(Oop obj) { - if (obj instanceof InstanceKlass) { - final InstanceKlass ik = (InstanceKlass) obj; + // Do Java-level static fields + SystemDictionary sysDict = VM.getVM().getSystemDictionary(); + sysDict.allClassesDo(new SystemDictionary.ClassVisitor() { + + public void visit(Klass k) { + if (k instanceof InstanceKlass) { + final InstanceKlass ik = (InstanceKlass)k; ik.iterateStaticFields( new DefaultOopVisitor() { public void doOop(OopField field, boolean isVMField) { Oop next = field.getValue(getObj()); - LivenessPathElement lp = new LivenessPathElement(null, - new NamedFieldIdentifier("Static field \"" + + NamedFieldIdentifier nfi = new NamedFieldIdentifier("Static field \"" + field.getID().getName() + "\" in class \"" + - ik.getName().asString() + "\"")); + ik.getName().asString() + "\""); + LivenessPathElement lp = new LivenessPathElement(null, nfi); rp.put(lp, next); try { markAndTraverse(next); @@ -144,7 +146,6 @@ } }); } - return false; } });