Mercurial > hg > truffle
diff src/share/vm/oops/metadata.cpp @ 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 |
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date | Sat, 01 Sep 2012 13:25:18 -0400 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/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(); +}