76 lines
2.6 KiB
C++
76 lines
2.6 KiB
C++
/*
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* Copyright (c) 2011, 2018, 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 "classfile/javaClasses.inline.hpp"
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#include "classfile/systemDictionary.hpp"
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#include "gc/shared/collectedHeap.inline.hpp"
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#include "memory/iterator.inline.hpp"
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#include "memory/oopFactory.hpp"
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#include "memory/universe.hpp"
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#include "oops/instanceKlass.hpp"
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#include "oops/instanceMirrorKlass.hpp"
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#include "oops/instanceOop.hpp"
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#include "oops/oop.inline.hpp"
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#include "oops/symbol.hpp"
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#include "runtime/handles.inline.hpp"
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#include "utilities/macros.hpp"
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int InstanceMirrorKlass::_offset_of_static_fields = 0;
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int InstanceMirrorKlass::instance_size(Klass* k) {
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if (k != NULL && k->is_instance_klass()) {
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return align_object_size(size_helper() + InstanceKlass::cast(k)->static_field_size());
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}
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return size_helper();
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}
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instanceOop InstanceMirrorKlass::allocate_instance(Klass* k, TRAPS) {
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// Query before forming handle.
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int size = instance_size(k);
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assert(size > 0, "total object size must be positive: %d", size);
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// Since mirrors can be variable sized because of the static fields, store
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// the size in the mirror itself.
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return (instanceOop)Universe::heap()->class_allocate(this, size, THREAD);
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}
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int InstanceMirrorKlass::oop_size(oop obj) const {
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return java_lang_Class::oop_size_raw(obj);
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}
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int InstanceMirrorKlass::compute_static_oop_field_count(oop obj) {
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Klass* k = java_lang_Class::as_Klass(obj);
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if (k != NULL && k->is_instance_klass()) {
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return InstanceKlass::cast(k)->static_oop_field_count();
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}
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return 0;
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}
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#if INCLUDE_CDS
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void InstanceMirrorKlass::serialize_offsets(SerializeClosure* f) {
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f->do_u4((u4*)&_offset_of_static_fields);
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}
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#endif
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