/*

 * Copyright (c) 2003, 2011, Oracle and/or its affiliates. All rights reserved.

 * Copyright (c) 2014, Red Hat Inc. 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

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 *

 */

#ifndef CPU_AARCH64_VM_STUBROUTINES_AARCH64_HPP

#define CPU_AARCH64_VM_STUBROUTINES_AARCH64_HPP

// This file holds the platform specific parts of the StubRoutines

// definition. See stubRoutines.hpp for a description on how to

// extend it.

// n.b. if we are notifying entry/exit to the simulator then the call

// stub does a notify at normal return placing

// call_stub_return_address one instruction beyond the notify. the

// latter address is sued by the stack unwind code when doign an

// exception return.

static bool    returns_to_call_stub(address return_pc)   {

  return return_pc == _call_stub_return_address + (NotifySimulator ? -4 : 0);

}

enum platform_dependent_constants {

  code_size1 = 19000,          // simply increase if too small (assembler will crash if too small)

  code_size2 = 22000           // simply increase if too small (assembler will crash if too small)

};

class aarch64 {

 friend class StubGenerator;

 private:

  static address _get_previous_fp_entry;

  static address _get_previous_sp_entry;

  static address _f2i_fixup;

  static address _f2l_fixup;

  static address _d2i_fixup;

  static address _d2l_fixup;

  static address _float_sign_mask;

  static address _float_sign_flip;

  static address _double_sign_mask;

  static address _double_sign_flip;

 public:

  static address get_previous_fp_entry()

  {

    return _get_previous_fp_entry;

  }

  static address get_previous_sp_entry()

  {

    return _get_previous_sp_entry;

  }

  static address f2i_fixup()

  {

    return _f2i_fixup;

  }

  static address f2l_fixup()

  {

    return _f2l_fixup;

  }

  static address d2i_fixup()

  {

    return _d2i_fixup;

  }

  static address d2l_fixup()

  {

    return _d2l_fixup;

  }

  static address float_sign_mask()

  {

    return _float_sign_mask;

  }

  static address float_sign_flip()

  {

    return _float_sign_flip;

  }

  static address double_sign_mask()

  {

    return _double_sign_mask;

  }

  static address double_sign_flip()

  {

    return _double_sign_flip;

  }

 private:

  static juint    _crc_table[];

};

#endif // CPU_AARCH64_VM_STUBROUTINES_AARCH64_HPP