/*
* Copyright ( c ) 2018 , 2020 , 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
* under the terms of the GNU General Public License version 2 only , as
* published by the Free Software Foundation .
*
* This code is distributed in the hope that it will be useful , but WITHOUT
* ANY WARRANTY ; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE . See the GNU General Public License
* version 2 for more details ( a copy is included in the LICENSE file that
* accompanied this code ) .
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work ; if not , write to the Free Software Foundation ,
* Inc . , 51 Franklin St , Fifth Floor , Boston , MA 02110 - 1301 USA .
*
* Please contact Oracle , 500 Oracle Parkway , Redwood Shores , CA 94065 USA
* or visit www . oracle . com if you need additional information or have any
* questions .
*
*/
#include "precompiled.hpp"
#include "gc/g1/g1BarrierSet.inline.hpp"
#include "gc/g1/g1BarrierSetRuntime.hpp"
#include "gc/g1/g1ThreadLocalData.hpp"
#include "runtime/interfaceSupport.inline.hpp"
#include "utilities/macros.hpp"
void G1BarrierSetRuntime::write_ref_array_pre_oop_entry(oop* dst, size_t length) {
G1BarrierSet *bs = barrier_set_cast<G1BarrierSet>(BarrierSet::barrier_set());
bs->write_ref_array_pre(dst, length, false );
}
void G1BarrierSetRuntime::write_ref_array_pre_narrow_oop_entry(narrowOop* dst, size_t length) {
G1BarrierSet *bs = barrier_set_cast<G1BarrierSet>(BarrierSet::barrier_set());
bs->write_ref_array_pre(dst, length, false );
}
void G1BarrierSetRuntime::write_ref_array_post_entry(HeapWord* dst, size_t length) {
G1BarrierSet *bs = barrier_set_cast<G1BarrierSet>(BarrierSet::barrier_set());
bs->G1BarrierSet::write_ref_array(dst, length);
}
// G1 pre write barrier slowpath
JRT_LEAF(void , G1BarrierSetRuntime::write_ref_field_pre_entry(oopDesc* orig, JavaThread* thread))
assert(thread == JavaThread::current(), "pre-condition" );
assert(orig != nullptr, "should be optimized out" );
assert(oopDesc::is_oop(orig, true /* ignore mark word */), "Error");
// store the original value that was in the field reference
SATBMarkQueue& queue = G1ThreadLocalData::satb_mark_queue(thread);
G1BarrierSet::satb_mark_queue_set().enqueue_known_active(queue, orig);
JRT_END
// G1 post write barrier slowpath
JRT_LEAF(void , G1BarrierSetRuntime::write_ref_field_post_entry(volatile G1CardTable::CardValue* card_addr,
JavaThread* thread))
assert(thread == JavaThread::current(), "pre-condition" );
G1DirtyCardQueue& queue = G1ThreadLocalData::dirty_card_queue(thread);
G1BarrierSet::dirty_card_queue_set().enqueue(queue, card_addr);
JRT_END
Messung V0.5 in Prozent C=93 H=100 G=96
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