diff -r 2d0647b9ac18 -r bfbe7d8369bb src/hotspot/share/gc/g1/g1BarrierSetRuntime.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/gc/g1/g1BarrierSetRuntime.cpp	Mon Jun 04 12:59:51 2018 +0200
@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 2018, 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))
+  if (orig == NULL) {
+    assert(false, "should be optimized out");
+    return;
+  }
+  assert(oopDesc::is_oop(orig, true /* ignore mark word */), "Error");
+  // store the original value that was in the field reference
+  G1ThreadLocalData::satb_mark_queue(thread).enqueue(orig);
+JRT_END
+
+// G1 post write barrier slowpath
+JRT_LEAF(void, G1BarrierSetRuntime::write_ref_field_post_entry(void* card_addr, JavaThread* thread))
+  G1ThreadLocalData::dirty_card_queue(thread).enqueue(card_addr);
+JRT_END