src/hotspot/share/oops/instanceClassLoaderKlass.hpp
author ccheung
Wed, 02 Oct 2019 16:55:08 -0700
changeset 58447 319173c62caa
parent 53244 9807daeb47c4
permissions -rw-r--r--
8231606: _method_ordering is not set during CDS dynamic dump time Summary: Add the missing DynamicDumpSharedSpaces check in sort_methods(); replace the (DumpSharedSpaces || DynamicDumpSharedSpaces) with the Arguments::is_dumping_archive() function call. Reviewed-by: iklam, coleenp, jiangli
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/*
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 * Copyright (c) 2011, 2019, 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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#ifndef SHARE_OOPS_INSTANCECLASSLOADERKLASS_HPP
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#define SHARE_OOPS_INSTANCECLASSLOADERKLASS_HPP
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#include "oops/instanceKlass.hpp"
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#include "utilities/macros.hpp"
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class ClassFileParser;
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// An InstanceClassLoaderKlass is a specialization of the InstanceKlass. It does
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// not add any field.  It is added to walk the dependencies for the class loader
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// key that this class loader points to.  This is how the loader_data graph is
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// walked and dependent class loaders are kept alive.  I thought we walked
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// the list later?
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class InstanceClassLoaderKlass: public InstanceKlass {
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  friend class VMStructs;
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  friend class InstanceKlass;
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public:
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  static const KlassID ID = InstanceClassLoaderKlassID;
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private:
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  InstanceClassLoaderKlass(const ClassFileParser& parser) : InstanceKlass(parser, InstanceKlass::_misc_kind_class_loader, ID) {}
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public:
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  InstanceClassLoaderKlass() { assert(DumpSharedSpaces || UseSharedSpaces, "only for CDS"); }
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  // Oop fields (and metadata) iterators
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  //
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  // The InstanceClassLoaderKlass iterators also visit the CLD pointer (or mirror of anonymous klasses.)
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  // Forward iteration
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  // Iterate over the oop fields and metadata.
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  template <typename T, class OopClosureType>
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  inline void oop_oop_iterate(oop obj, OopClosureType* closure);
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  // Reverse iteration
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  // Iterate over the oop fields and metadata.
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  template <typename T, class OopClosureType>
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  inline void oop_oop_iterate_reverse(oop obj, OopClosureType* closure);
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  // Bounded range iteration
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  // Iterate over the oop fields and metadata.
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  template <typename T, class OopClosureType>
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  inline void oop_oop_iterate_bounded(oop obj, OopClosureType* closure, MemRegion mr);
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};
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#endif // SHARE_OOPS_INSTANCECLASSLOADERKLASS_HPP