1 /* 2 * Copyright (c) 2013, 2016, 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 25 #ifndef CPU_X86_VM_STUBROUTINES_X86_HPP 26 #define CPU_X86_VM_STUBROUTINES_X86_HPP 27 28 // This file holds the platform specific parts of the StubRoutines 29 // definition. See stubRoutines.hpp for a description on how to 30 // extend it. 31 32 static bool returns_to_call_stub(address return_pc) { return return_pc == _call_stub_return_address; } 33 34 enum platform_dependent_constants { 35 code_size1 = 20000 LP64_ONLY(+10000), // simply increase if too small (assembler will crash if too small) 36 code_size2 = 33800 LP64_ONLY(+10000) // simply increase if too small (assembler will crash if too small) 37 }; 38 39 class x86 { 40 friend class StubGenerator; 41 friend class VMStructs; 42 43 #ifdef _LP64 44 private: 45 static address _get_previous_fp_entry; 46 static address _get_previous_sp_entry; 47 48 static address _f2i_fixup; 49 static address _f2l_fixup; 50 static address _d2i_fixup; 51 static address _d2l_fixup; 52 53 static address _float_sign_mask; 54 static address _float_sign_flip; 55 static address _double_sign_mask; 56 static address _double_sign_flip; 57 58 static address _load_barrier_slow_stub[]; 59 static address _load_barrier_weak_slow_stub[]; 60 61 public: 62 63 static address load_barrier_slow_stub(Register reg) { return _load_barrier_slow_stub[reg->encoding()]; } 64 static address load_barrier_weak_slow_stub(Register reg) { return _load_barrier_weak_slow_stub[reg->encoding()]; } 65 66 67 static address get_previous_fp_entry() { 68 return _get_previous_fp_entry; 69 } 70 71 static address get_previous_sp_entry() { 72 return _get_previous_sp_entry; 73 } 74 75 static address f2i_fixup() { 76 return _f2i_fixup; 77 } 78 79 static address f2l_fixup() { 80 return _f2l_fixup; 81 } 82 83 static address d2i_fixup() { 84 return _d2i_fixup; 85 } 86 87 static address d2l_fixup() { 88 return _d2l_fixup; 89 } 90 91 static address float_sign_mask() { 92 return _float_sign_mask; 93 } 94 95 static address float_sign_flip() { 96 return _float_sign_flip; 97 } 98 99 static address double_sign_mask() { 100 return _double_sign_mask; 101 } 102 103 static address double_sign_flip() { 104 return _double_sign_flip; 105 } 106 #else // !LP64 107 108 private: 109 static address _verify_fpu_cntrl_wrd_entry; 110 111 public: 112 static address verify_fpu_cntrl_wrd_entry() { return _verify_fpu_cntrl_wrd_entry; } 113 114 #endif // !LP64 115 116 private: 117 static address _verify_mxcsr_entry; 118 // shuffle mask for fixing up 128-bit words consisting of big-endian 32-bit integers 119 static address _key_shuffle_mask_addr; 120 121 //shuffle mask for big-endian 128-bit integers 122 static address _counter_shuffle_mask_addr; 123 124 // masks and table for CRC32 125 static uint64_t _crc_by128_masks[]; 126 static juint _crc_table[]; 127 // table for CRC32C 128 static juint* _crc32c_table; 129 // swap mask for ghash 130 static address _ghash_long_swap_mask_addr; 131 static address _ghash_byte_swap_mask_addr; 132 133 // upper word mask for sha1 134 static address _upper_word_mask_addr; 135 // byte flip mask for sha1 136 static address _shuffle_byte_flip_mask_addr; 137 138 //k256 table for sha256 139 static juint _k256[]; 140 static address _k256_adr; 141 #ifdef _LP64 142 static juint _k256_W[]; 143 static address _k256_W_adr; 144 static julong _k512_W[]; 145 static address _k512_W_addr; 146 // byte flip mask for sha512 147 static address _pshuffle_byte_flip_mask_addr_sha512; 148 #endif 149 // byte flip mask for sha256 150 static address _pshuffle_byte_flip_mask_addr; 151 152 //tables common for LIBM sin and cos 153 static juint _ONEHALF[]; 154 static address _ONEHALF_adr; 155 static juint _P_2[]; 156 static address _P_2_adr; 157 static juint _SC_4[]; 158 static address _SC_4_adr; 159 static juint _Ctable[]; 160 static address _Ctable_adr; 161 static juint _SC_2[]; 162 static address _SC_2_adr; 163 static juint _SC_3[]; 164 static address _SC_3_adr; 165 static juint _SC_1[]; 166 static address _SC_1_adr; 167 static juint _PI_INV_TABLE[]; 168 static address _PI_INV_TABLE_adr; 169 static juint _PI_4[]; 170 static address _PI_4_adr; 171 static juint _PI32INV[]; 172 static address _PI32INV_adr; 173 static juint _SIGN_MASK[]; 174 static address _SIGN_MASK_adr; 175 static juint _P_1[]; 176 static address _P_1_adr; 177 static juint _P_3[]; 178 static address _P_3_adr; 179 static juint _NEG_ZERO[]; 180 static address _NEG_ZERO_adr; 181 182 //tables common for LIBM sincos and tancot 183 static juint _L_2il0floatpacket_0[]; 184 static address _L_2il0floatpacket_0_adr; 185 static juint _Pi4Inv[]; 186 static address _Pi4Inv_adr; 187 static juint _Pi4x3[]; 188 static address _Pi4x3_adr; 189 static juint _Pi4x4[]; 190 static address _Pi4x4_adr; 191 static juint _ones[]; 192 static address _ones_adr; 193 194 public: 195 static address verify_mxcsr_entry() { return _verify_mxcsr_entry; } 196 static address key_shuffle_mask_addr() { return _key_shuffle_mask_addr; } 197 static address counter_shuffle_mask_addr() { return _counter_shuffle_mask_addr; } 198 static address crc_by128_masks_addr() { return (address)_crc_by128_masks; } 199 static address ghash_long_swap_mask_addr() { return _ghash_long_swap_mask_addr; } 200 static address ghash_byte_swap_mask_addr() { return _ghash_byte_swap_mask_addr; } 201 static address upper_word_mask_addr() { return _upper_word_mask_addr; } 202 static address shuffle_byte_flip_mask_addr() { return _shuffle_byte_flip_mask_addr; } 203 static address k256_addr() { return _k256_adr; } 204 #ifdef _LP64 205 static address k256_W_addr() { return _k256_W_adr; } 206 static address k512_W_addr() { return _k512_W_addr; } 207 static address pshuffle_byte_flip_mask_addr_sha512() { return _pshuffle_byte_flip_mask_addr_sha512; } 208 #endif 209 static address pshuffle_byte_flip_mask_addr() { return _pshuffle_byte_flip_mask_addr; } 210 static void generate_CRC32C_table(bool is_pclmulqdq_supported); 211 static address _ONEHALF_addr() { return _ONEHALF_adr; } 212 static address _P_2_addr() { return _P_2_adr; } 213 static address _SC_4_addr() { return _SC_4_adr; } 214 static address _Ctable_addr() { return _Ctable_adr; } 215 static address _SC_2_addr() { return _SC_2_adr; } 216 static address _SC_3_addr() { return _SC_3_adr; } 217 static address _SC_1_addr() { return _SC_1_adr; } 218 static address _PI_INV_TABLE_addr() { return _PI_INV_TABLE_adr; } 219 static address _PI_4_addr() { return _PI_4_adr; } 220 static address _PI32INV_addr() { return _PI32INV_adr; } 221 static address _SIGN_MASK_addr() { return _SIGN_MASK_adr; } 222 static address _P_1_addr() { return _P_1_adr; } 223 static address _P_3_addr() { return _P_3_adr; } 224 static address _NEG_ZERO_addr() { return _NEG_ZERO_adr; } 225 static address _L_2il0floatpacket_0_addr() { return _L_2il0floatpacket_0_adr; } 226 static address _Pi4Inv_addr() { return _Pi4Inv_adr; } 227 static address _Pi4x3_addr() { return _Pi4x3_adr; } 228 static address _Pi4x4_addr() { return _Pi4x4_adr; } 229 static address _ones_addr() { return _ones_adr; } 230 231 }; 232 233 #endif // CPU_X86_VM_STUBROUTINES_X86_HPP