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diff agent/src/share/classes/sun/jvm/hotspot/memory/SharedHeap.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 c18cbe5936b8
children
line wrap: on
line diff
--- a/agent/src/share/classes/sun/jvm/hotspot/memory/SharedHeap.java	Fri Aug 31 16:39:35 2012 -0700
+++ b/agent/src/share/classes/sun/jvm/hotspot/memory/SharedHeap.java	Sat Sep 01 13:25:18 2012 -0400
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2002, 2003, 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
@@ -33,7 +33,6 @@
 import sun.jvm.hotspot.types.*;
 
 public abstract class SharedHeap extends CollectedHeap {
-  private static AddressField permGenField;
   private static VirtualConstructor ctor;
 
   static {
@@ -46,31 +45,14 @@
 
   private static synchronized void initialize(TypeDataBase db) {
     Type type = db.lookupType("SharedHeap");
-    permGenField        = type.getAddressField("_perm_gen");
     ctor = new VirtualConstructor(db);
-    ctor.addMapping("CompactingPermGen", CompactingPermGen.class);
-    ctor.addMapping("CMSPermGen", CMSPermGen.class);
-
   }
 
   public SharedHeap(Address addr) {
     super(addr);
   }
 
-  /** These functions return the "permanent" generation, in which
-      reflective objects are allocated and stored.  Two versions, the
-      second of which returns the view of the perm gen as a
-      generation. (FIXME: this distinction is strange and seems
-      unnecessary, and should be cleaned up.) */
-  public PermGen perm() {
-    return (PermGen) ctor.instantiateWrapperFor(permGenField.getValue(addr));
-  }
-
   public CollectedHeapName kind() {
     return CollectedHeapName.SHARED_HEAP;
   }
-
-  public Generation permGen() {
-    return perm().asGen();
   }
-}