/*

 * Copyright (c) 2013, 2016, 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

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

 * questions.

 *

 */

#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.

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

enum platform_dependent_constants {

  code_size1 = 20000 LP64_ONLY(+10000),         // simply increase if too small (assembler will crash if too small)

  code_size2 = 33800 LP64_ONLY(+10000)           // simply increase if too small (assembler will crash if too small)

};

class x86 {

 friend class StubGenerator;

 friend class VMStructs;

#ifdef _LP64

 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;

  }

#else // !LP64

 private:

  static address _verify_fpu_cntrl_wrd_entry;

 public:

  static address verify_fpu_cntrl_wrd_entry() { return _verify_fpu_cntrl_wrd_entry; }

#endif // !LP64

 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;

  //shuffle mask for big-endian 128-bit integers

  static address _counter_shuffle_mask_addr;

  // masks and table for CRC32

  static uint64_t _crc_by128_masks[];

  static juint    _crc_table[];

  // table for CRC32C

  static juint* _crc32c_table;

  // swap mask for ghash

  static address _ghash_long_swap_mask_addr;

  static address _ghash_byte_swap_mask_addr;

  // upper word mask for sha1

  static address _upper_word_mask_addr;

  // byte flip mask for sha1

  static address _shuffle_byte_flip_mask_addr;

  //k256 table for sha256

  static juint _k256[];

  static address _k256_adr;

#ifdef _LP64

  static juint _k256_W[];

  static address _k256_W_adr;

  static julong _k512_W[];

  static address _k512_W_addr;

  // byte flip mask for sha512

  static address _pshuffle_byte_flip_mask_addr_sha512;

#endif

  // byte flip mask for sha256

  static address _pshuffle_byte_flip_mask_addr;

  //tables common for LIBM sin and cos

  static juint _ONEHALF[];

  static address _ONEHALF_adr;

  static juint _P_2[];

  static address _P_2_adr;

  static juint _SC_4[];

  static address _SC_4_adr;

  static juint _Ctable[];

  static address _Ctable_adr;

  static juint _SC_2[];

  static address _SC_2_adr;

  static juint _SC_3[];

  static address _SC_3_adr;

  static juint _SC_1[];

  static address _SC_1_adr;

  static juint _PI_INV_TABLE[];

  static address _PI_INV_TABLE_adr;

  static juint _PI_4[];

  static address _PI_4_adr;

  static juint _PI32INV[];

  static address _PI32INV_adr;

  static juint _SIGN_MASK[];

  static address _SIGN_MASK_adr;

  static juint _P_1[];

  static address _P_1_adr;

  static juint _P_3[];

  static address _P_3_adr;

  static juint _NEG_ZERO[];

  static address _NEG_ZERO_adr;

  //tables common for LIBM sincos and tancot

  static juint _L_2il0floatpacket_0[];

  static address _L_2il0floatpacket_0_adr;

  static juint _Pi4Inv[];

  static address _Pi4Inv_adr;

  static juint _Pi4x3[];

  static address _Pi4x3_adr;

  static juint _Pi4x4[];

  static address _Pi4x4_adr;

  static juint _ones[];

  static address _ones_adr;

 public:

  static address verify_mxcsr_entry()    { return _verify_mxcsr_entry; }

  static address key_shuffle_mask_addr() { return _key_shuffle_mask_addr; }

  static address counter_shuffle_mask_addr() { return _counter_shuffle_mask_addr; }

  static address crc_by128_masks_addr()  { return (address)_crc_by128_masks; }

  static address ghash_long_swap_mask_addr() { return _ghash_long_swap_mask_addr; }

  static address ghash_byte_swap_mask_addr() { return _ghash_byte_swap_mask_addr; }

  static address upper_word_mask_addr() { return _upper_word_mask_addr; }

  static address shuffle_byte_flip_mask_addr() { return _shuffle_byte_flip_mask_addr; }

  static address k256_addr()      { return _k256_adr; }

#ifdef _LP64

  static address k256_W_addr()    { return _k256_W_adr; }

  static address k512_W_addr()    { return _k512_W_addr; }

  static address pshuffle_byte_flip_mask_addr_sha512() { return _pshuffle_byte_flip_mask_addr_sha512; }

#endif

  static address pshuffle_byte_flip_mask_addr() { return _pshuffle_byte_flip_mask_addr; }

  static void generate_CRC32C_table(bool is_pclmulqdq_supported);

  static address _ONEHALF_addr()      { return _ONEHALF_adr; }

  static address _P_2_addr()      { return _P_2_adr; }

  static address _SC_4_addr()      { return _SC_4_adr; }

  static address _Ctable_addr()      { return _Ctable_adr; }

  static address _SC_2_addr()      { return _SC_2_adr; }

  static address _SC_3_addr()      { return _SC_3_adr; }

  static address _SC_1_addr()      { return _SC_1_adr; }

  static address _PI_INV_TABLE_addr()      { return _PI_INV_TABLE_adr; }

  static address _PI_4_addr()      { return _PI_4_adr; }

  static address _PI32INV_addr()      { return _PI32INV_adr; }

  static address _SIGN_MASK_addr()      { return _SIGN_MASK_adr; }

  static address _P_1_addr()      { return _P_1_adr; }

  static address _P_3_addr()      { return _P_3_adr; }

  static address _NEG_ZERO_addr()      { return _NEG_ZERO_adr; }

  static address _L_2il0floatpacket_0_addr()      { return _L_2il0floatpacket_0_adr; }

  static address _Pi4Inv_addr()      { return _Pi4Inv_adr; }

  static address _Pi4x3_addr()      { return _Pi4x3_adr; }

  static address _Pi4x4_addr()      { return _Pi4x4_adr; }

  static address _ones_addr()      { return _ones_adr; }

};

#endif // CPU_X86_VM_STUBROUTINES_X86_HPP