hotspot/src/share/vm/oops/oopsHierarchy.cpp
author coleenp
Sat, 01 Sep 2012 13:25:18 -0400
changeset 13728 882756847a04
parent 10565 dc90c239f4ec
child 14583 d70ee55535f4
permissions -rw-r--r--
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>
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/*
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 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 *
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 */
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#include "precompiled.hpp"
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#include "gc_interface/collectedHeap.hpp"
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#include "gc_interface/collectedHeap.inline.hpp"
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#include "oops/oopsHierarchy.hpp"
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#include "runtime/thread.hpp"
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#include "utilities/globalDefinitions.hpp"
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#ifdef TARGET_OS_FAMILY_linux
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# include "thread_linux.inline.hpp"
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#endif
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#ifdef TARGET_OS_FAMILY_solaris
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# include "thread_solaris.inline.hpp"
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#endif
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#ifdef TARGET_OS_FAMILY_windows
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# include "thread_windows.inline.hpp"
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#endif
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#ifdef TARGET_OS_FAMILY_bsd
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# include "thread_bsd.inline.hpp"
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#endif
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#ifdef CHECK_UNHANDLED_OOPS
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void oop::register_oop() {
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  assert (CheckUnhandledOops, "should only call when CheckUnhandledOops");
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  if (!Universe::is_fully_initialized()) return;
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  // This gets expensive, which is why checking unhandled oops is on a switch.
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  Thread* t = ThreadLocalStorage::thread();
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  if (t != NULL && t->is_Java_thread()) {
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     frame fr = os::current_frame();
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     // This points to the oop creator, I guess current frame points to caller
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     assert (fr.pc(), "should point to a vm frame");
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     t->unhandled_oops()->register_unhandled_oop(this, fr.pc());
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  }
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}
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void oop::unregister_oop() {
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  assert (CheckUnhandledOops, "should only call when CheckUnhandledOops");
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  if (!Universe::is_fully_initialized()) return;
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  // This gets expensive, which is why checking unhandled oops is on a switch.
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  Thread* t = ThreadLocalStorage::thread();
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  if (t != NULL && t->is_Java_thread()) {
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    t->unhandled_oops()->unregister_unhandled_oop(this);
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  }
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}
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#endif // CHECK_UNHANDLED_OOPS