1 /*
   2  * Copyright (c) 2018, Red Hat, Inc. All rights reserved.
   3  *
   4  * This code is free software; you can redistribute it and/or modify it
   5  * under the terms of the GNU General Public License version 2 only, as
   6  * published by the Free Software Foundation.
   7  *
   8  * This code is distributed in the hope that it will be useful, but WITHOUT
   9  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  10  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  11  * version 2 for more details (a copy is included in the LICENSE file that
  12  * accompanied this code).
  13  *
  14  * You should have received a copy of the GNU General Public License version
  15  * 2 along with this work; if not, write to the Free Software Foundation,
  16  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  17  *
  18  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  19  * or visit www.oracle.com if you need additional information or have any
  20  * questions.
  21  *
  22  */
  23 
  24 #ifndef SHARE_VM_GC_SHENANDOAH_SHENANDOAHRUNTIME_HPP
  25 #define SHARE_VM_GC_SHENANDOAH_SHENANDOAHRUNTIME_HPP
  26 
  27 #include "memory/allocation.hpp"
  28 #include "oops/oopsHierarchy.hpp"
  29 
  30 class HeapWord;
  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   static oopDesc* load_reference_barrier_interpreter(oopDesc* src);
  44 
  45   static void shenandoah_clone_barrier(oopDesc* src);
  46 };
  47 
  48 #endif // SHARE_VM_GC_SHENANDOAH_SHENANDOAHRUNTIME_HPP