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view src/cpu/x86/vm/stubRoutines_x86.hpp @ 20304:a22acf6d7598

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8048112: G1 Full GC needs to support the case when the very first region is not available Summary: Refactor preparation for compaction during Full GC so that it lazily initializes the first compaction point. This also avoids problems later when the first region may not be committed. Also reviewed by K. Barrett. Reviewed-by: brutisso
author tschatzl
date Mon, 21 Jul 2014 10:00:31 +0200
parents b800986664f4
children
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/*
 * Copyright (c) 2013, 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
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 */

#ifndef CPU_X86_VM_STUBROUTINES_X86_HPP
#define CPU_X86_VM_STUBROUTINES_X86_HPP

// This file holds the platform specific parts of the StubRoutines
// definition. See stubRoutines.hpp for a description on how to
// extend it.

 private:
  static address _verify_mxcsr_entry;
  // shuffle mask for fixing up 128-bit words consisting of big-endian 32-bit integers
  static address _key_shuffle_mask_addr;
  // masks and table for CRC32
  static uint64_t _crc_by128_masks[];
  static juint    _crc_table[];

 public:
  static address verify_mxcsr_entry()    { return _verify_mxcsr_entry; }
  static address key_shuffle_mask_addr() { return _key_shuffle_mask_addr; }
  static address crc_by128_masks_addr()  { return (address)_crc_by128_masks; }

#endif // CPU_X86_VM_STUBROUTINES_X86_32_HPP