stubRoutines_aarch64.hpp

/*
 * Copyright (c) 2003, 2020, 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_STUBROUTINES_AARCH64_HPP
#define CPU_AARCH64_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.

static bool    returns_to_call_stub(address return_pc)   {
  return return_pc == _call_stub_return_address;
}

enum platform_dependent_constants {
  code_size1 = 19000,          // simply increase if too small (assembler will crash if too small)
  code_size2 = 45000           // simply increase if too small (assembler will crash if too small)
};

class aarch64 {
 friend class StubGenerator;

 private:
  static address _get_previous_sp_entry;

  static address _f2i_fixup;
  static address _f2l_fixup;
  static address _d2i_fixup;
  static address _d2l_fixup;

  static address _vector_iota_indices;
  static address _float_sign_mask;
  static address _float_sign_flip;
  static address _double_sign_mask;
  static address _double_sign_flip;

  static address _zero_blocks;

  static address _has_negatives;
  static address _has_negatives_long;
  static address _large_array_equals;
  static address _compare_long_string_LL;
  static address _compare_long_string_LU;
  static address _compare_long_string_UL;
  static address _compare_long_string_UU;
  static address _string_indexof_linear_ll;
  static address _string_indexof_linear_uu;
  static address _string_indexof_linear_ul;
  static address _large_byte_array_inflate;

  static address _method_entry_barrier;

  static address _spin_wait;

  static bool _completed;

 public:

  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 vector_iota_indices() {
    return _vector_iota_indices;
  }

  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;
  }

  static address zero_blocks() {
    return _zero_blocks;
  }

  static address has_negatives() {
    return _has_negatives;
  }

  static address has_negatives_long() {
      return _has_negatives_long;
  }

  static address large_array_equals() {
      return _large_array_equals;
  }

  static address compare_long_string_LL() {
      return _compare_long_string_LL;
  }

  static address compare_long_string_LU() {
      return _compare_long_string_LU;
  }

  static address compare_long_string_UL() {
      return _compare_long_string_UL;
  }

  static address compare_long_string_UU() {
      return _compare_long_string_UU;
  }

  static address string_indexof_linear_ul() {
      return _string_indexof_linear_ul;
  }

  static address string_indexof_linear_ll() {
      return _string_indexof_linear_ll;
  }

  static address string_indexof_linear_uu() {
      return _string_indexof_linear_uu;
  }

  static address large_byte_array_inflate() {
      return _large_byte_array_inflate;
  }

  static address method_entry_barrier() {
    return _method_entry_barrier;
  }

  static address spin_wait() {
    return _spin_wait;
  }

  static bool complete() {
    return _completed;
  }

  static void set_completed() {
    _completed = true;
  }

private:
  static juint    _crc_table[];
  static jubyte   _adler_table[];
  // begin trigonometric tables block. See comments in .cpp file
  static juint    _npio2_hw[];
  static jdouble   _two_over_pi[];
  static jdouble   _pio2[];
  static jdouble   _dsin_coef[];
  static jdouble  _dcos_coef[];
  // end trigonometric tables block
};

#endif // CPU_AARCH64_STUBROUTINES_AARCH64_HPP