5a21a8c4dd
Instead of globally waiting for completion of strong nmethod processing during evacuation, synchronize the nmethods processing on a per-nmethod basis so that only one thread processes one nmethod at once using a state. This state indicates what work (strong/weak processing) needs to be done and what has already been done. Reviewed-by: sjohanss, kbarrett
66 lines
1.9 KiB
C++
66 lines
1.9 KiB
C++
/*
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* Copyright (c) 1997, 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 "code/nmethod.hpp"
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#include "memory/iterator.inline.hpp"
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#include "oops/oop.inline.hpp"
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#include "utilities/debug.hpp"
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#include "utilities/globalDefinitions.hpp"
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DoNothingClosure do_nothing_cl;
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void CLDToOopClosure::do_cld(ClassLoaderData* cld) {
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cld->oops_do(_oop_closure, _cld_claim);
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}
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void ObjectToOopClosure::do_object(oop obj) {
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obj->oop_iterate(_cl);
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}
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void VoidClosure::do_void() {
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ShouldNotCallThis();
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}
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void CodeBlobToOopClosure::do_nmethod(nmethod* nm) {
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nm->oops_do(_cl);
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if (_fix_relocations) {
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nm->fix_oop_relocations();
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}
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}
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void CodeBlobToOopClosure::do_code_blob(CodeBlob* cb) {
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nmethod* nm = cb->as_nmethod_or_null();
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if (nm != NULL) {
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do_nmethod(nm);
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}
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}
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void MarkingCodeBlobClosure::do_code_blob(CodeBlob* cb) {
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nmethod* nm = cb->as_nmethod_or_null();
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if (nm != NULL && nm->oops_do_try_claim()) {
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do_nmethod(nm);
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}
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}
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