1 /*
   2  * Copyright (c) 2015, 2017, Oracle and/or its affiliates. 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 #ifndef SHARE_GC_Z_ZUTILS_HPP
  25 #define SHARE_GC_Z_ZUTILS_HPP
  26 
  27 #include "memory/allocation.hpp"
  28 
  29 class ZUtils : public AllStatic {
  30 public:
  31   // Allocation
  32   static uintptr_t alloc_aligned(size_t alignment, size_t size);
  33 
  34   // Power of two
  35   static size_t round_up_power_of_2(size_t value);
  36   static size_t round_down_power_of_2(size_t value);
  37 
  38   // Size conversion
  39   static size_t bytes_to_words(size_t size_in_words);
  40   static size_t words_to_bytes(size_t size_in_words);
  41 
  42   // Object
  43   static size_t object_size(uintptr_t addr);
  44   static void object_copy(uintptr_t from, uintptr_t to, size_t size);
  45 
  46   // Filler
  47   static void insert_filler_object(uintptr_t addr, size_t size);
  48 };
  49 
  50 #endif // SHARE_GC_Z_ZUTILS_HPP
--- EOF ---