1 /*
   2  * Copyright (c) 2018, 2019, Red Hat, Inc. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #ifndef SHARE_GC_SHENANDOAH_SHENANDOAHRUNTIME_HPP
  26 #define SHARE_GC_SHENANDOAH_SHENANDOAHRUNTIME_HPP
  27 
  28 #include "memory/allocation.hpp"
  29 #include "oops/oopsHierarchy.hpp"
  30 
  31 class JavaThread;
  32 class oopDesc;
  33 
  34 class ShenandoahRuntime : public AllStatic {
  35 public:
  36   static void arraycopy_barrier_oop_entry(oop* src, oop* dst, size_t length);
  37   static void arraycopy_barrier_narrow_oop_entry(narrowOop* src, narrowOop * dst, size_t length);
  38 
  39   static void write_ref_field_pre_entry(oopDesc* orig, JavaThread* thread);
  40 
  41   static oopDesc* load_reference_barrier(oopDesc* src, oop* load_addr);
  42   static oopDesc* load_reference_barrier_narrow(oopDesc* src, narrowOop* load_addr);
  43 
  44   static oopDesc* load_reference_barrier_native(oopDesc* src, oop* load_addr);
  45 
  46   static void shenandoah_clone_barrier(oopDesc* src);
  47 };
  48 
  49 #endif // SHARE_GC_SHENANDOAH_SHENANDOAHRUNTIME_HPP