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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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6
src/hotspot/share/memory/iterator.inline.hpp
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2014, 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
@ -37,10 +37,8 @@
#include "utilities/debug.hpp"
inline void MetadataAwareOopClosure::do_cld_nv(ClassLoaderData* cld) {
assert(_klass_closure._oop_closure == this, "Must be");
bool claim = true; // Must claim the class loader data before processing.
cld->oops_do(_klass_closure._oop_closure, &_klass_closure, claim);
cld->oops_do(this, claim);
}
inline void MetadataAwareOopClosure::do_klass_nv(Klass* k) {