src/hotspot/share/gc/shared/barrierSet.cpp
author pliden
Thu, 12 Apr 2018 08:25:56 +0200
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8201318: Introduce GCThreadLocalData to abstract GC-specific data belonging to a thread Reviewed-by: shade, rehn
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/*
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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 "gc/shared/barrierSet.hpp"
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#include "gc/shared/barrierSetAssembler.hpp"
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#include "runtime/thread.hpp"
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#include "utilities/macros.hpp"
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BarrierSet* BarrierSet::_barrier_set = NULL;
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void BarrierSet::set_barrier_set(BarrierSet* barrier_set) {
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  assert(_barrier_set == NULL, "Already initialized");
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  _barrier_set = barrier_set;
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  // The barrier set was not initialized when the this thread (the main thread)
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  // was created, so the call to BarrierSet::on_thread_create() had to be deferred
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  // until we have a barrier set. Now we have a barrier set, so we make the call.
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  _barrier_set->on_thread_create(Thread::current());
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}
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// Called from init.cpp
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void gc_barrier_stubs_init() {
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  BarrierSet* bs = BarrierSet::barrier_set();
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#ifndef ZERO
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  BarrierSetAssembler* bs_assembler = bs->barrier_set_assembler();
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  bs_assembler->barrier_stubs_init();
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#endif
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}