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8186777: Make Klass::_java_mirror an OopHandle

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Add indirection for fetching mirror so that GC doesn't have to follow CLD::_klasses

Co-authored-by: Rickard Backman <rickard.backman@oracle.com>
Reviewed-by: hseigel, thartmann, eosterlund, stefank
This commit is contained in:
Coleen Phillimore 2017-10-03 16:42:04 -04:00
parent e31bc5637a
commit 73a801bc43
61 changed files with 383 additions and 477 deletions
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13
src/hotspot/share/gc/parallel/psCompactionManager.hpp
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2005, 2016, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2005, 2017, 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
@ -196,17 +196,6 @@ private:
FollowStackClosure(ParCompactionManager* cm) : _compaction_manager(cm) { }
virtual void do_void();
};
// The one and only place to start following the classes.
// Should only be applied to the ClassLoaderData klasses list.
class FollowKlassClosure : public KlassClosure {
private:
MarkAndPushClosure* _mark_and_push_closure;
public:
FollowKlassClosure(MarkAndPushClosure* mark_and_push_closure) :
_mark_and_push_closure(mark_and_push_closure) { }
void do_klass(Klass* klass);
};
};
inline ParCompactionManager* ParCompactionManager::manager_array(uint index) {