1 /*
   2  * Copyright (c) 2018, 2019, 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_GC_SHENANDOAH_SHENANDOAHRUNTIME_HPP
  25 #define SHARE_GC_SHENANDOAH_SHENANDOAHRUNTIME_HPP
  26 
  27 #include "memory/allocation.hpp"
  28 #include "oops/oopsHierarchy.hpp"
  29 
  30 class JavaThread;
  31 class oopDesc;
  32 
  33 class ShenandoahRuntime : public AllStatic {
  34 public:
  35   static void write_ref_array_pre_oop_entry(oop* src, oop* dst, size_t length);
  36   static void write_ref_array_pre_narrow_oop_entry(narrowOop* src, narrowOop* dst, size_t length);
  37   static void write_ref_array_pre_duinit_oop_entry(oop* src, oop* dst, size_t length);
  38   static void write_ref_array_pre_duinit_narrow_oop_entry(narrowOop* src, narrowOop* dst, size_t length);
  39   static void write_ref_field_pre_entry(oopDesc* orig, JavaThread* thread);
  40 
  41   static oopDesc* load_reference_barrier(oopDesc* src);
  42   static oopDesc* load_reference_barrier_fixup(oopDesc* src, oop* load_addr);
  43   static oopDesc* load_reference_barrier_fixup_narrow(oopDesc* src, narrowOop* load_addr);
  44 
  45   static oopDesc* load_reference_barrier_native(oopDesc* src);
  46 
  47   static void shenandoah_clone_barrier(oopDesc* s, oopDesc* d, size_t length);
  48 };
  49 
  50 #endif // SHARE_GC_SHENANDOAH_SHENANDOAHRUNTIME_HPP
--- EOF ---