diff hotspot/src/share/vm/oops/metadata.cpp @ 13728:882756847a04

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
children 1f304d0c888b
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/share/vm/oops/metadata.cpp	Sat Sep 01 13:25:18 2012 -0400
@@ -0,0 +1,53 @@
+/*
+ * Copyright (c) 2011, 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
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#include "precompiled.hpp"
+#include "oops/metadata.hpp"
+#include "memory/metaspace.hpp"
+#include "memory/resourceArea.hpp"
+#include "prims/jvmtiRedefineClasses.hpp"
+
+void Metadata::set_on_stack(const bool value) {
+  // nothing to set for most metadata
+  // Can't inline because this materializes the vtable on some C++ compilers.
+}
+
+void Metadata::print_on(outputStream* st) const {
+  ResourceMark rm;
+  // print title
+  st->print("%s", internal_name());
+  print_address_on(st);
+  st->cr();
+}
+
+char* Metadata::print_value_string() const {
+  char buf[100];
+  stringStream st(buf, sizeof(buf));
+  if (this == NULL) {
+    st.print("NULL");
+  } else {
+    print_value_on(&st);
+  }
+  return st.as_string();
+}