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 public:
59
60 static address get_previous_fp_entry() {
61 return _get_previous_fp_entry;
62 }
63
64 static address get_previous_sp_entry() {
65 return _get_previous_sp_entry;
66 }
67
68 static address f2i_fixup() {
69 return _f2i_fixup;
70 }
71
72 static address f2l_fixup() {
73 return _f2l_fixup;
74 }
75
76 static address d2i_fixup() {
77 return _d2i_fixup;
78 }
79
80 static address d2l_fixup() {
81 return _d2l_fixup;
82 }
83
84 static address float_sign_mask() {
85 return _float_sign_mask;
86 }
87
88 static address float_sign_flip() {
89 return _float_sign_flip;
90 }
91
92 static address double_sign_mask() {
93 return _double_sign_mask;
94 }
95
96 static address double_sign_flip() {
97 return _double_sign_flip;
98 }
99 #else // !LP64
100
101 private:
102 static address _verify_fpu_cntrl_wrd_entry;
103
104 public:
105 static address verify_fpu_cntrl_wrd_entry() { return _verify_fpu_cntrl_wrd_entry; }
106
107 #endif // !LP64
108
109 private:
110 static address _verify_mxcsr_entry;
111 // shuffle mask for fixing up 128-bit words consisting of big-endian 32-bit integers
112 static address _key_shuffle_mask_addr;
113
114 //shuffle mask for big-endian 128-bit integers
115 static address _counter_shuffle_mask_addr;
116
117 // masks and table for CRC32
118 static uint64_t _crc_by128_masks[];
119 static juint _crc_table[];
120 // table for CRC32C
121 static juint* _crc32c_table;
122 // swap mask for ghash
123 static address _ghash_long_swap_mask_addr;
124 static address _ghash_byte_swap_mask_addr;
125
126 // upper word mask for sha1
127 static address _upper_word_mask_addr;
128 // byte flip mask for sha1
129 static address _shuffle_byte_flip_mask_addr;
130
131 //k256 table for sha256
132 static juint _k256[];
133 static address _k256_adr;
134 #ifdef _LP64
135 static juint _k256_W[];
136 static address _k256_W_adr;
137 static julong _k512_W[];
138 static address _k512_W_addr;
139 // byte flip mask for sha512
140 static address _pshuffle_byte_flip_mask_addr_sha512;
141 #endif
142 // byte flip mask for sha256
143 static address _pshuffle_byte_flip_mask_addr;
144
145 //tables common for LIBM sin and cos
146 static juint _ONEHALF[];
147 static address _ONEHALF_adr;
148 static juint _P_2[];
149 static address _P_2_adr;
150 static juint _SC_4[];
151 static address _SC_4_adr;
152 static juint _Ctable[];
153 static address _Ctable_adr;
154 static juint _SC_2[];
155 static address _SC_2_adr;
156 static juint _SC_3[];
157 static address _SC_3_adr;
158 static juint _SC_1[];
159 static address _SC_1_adr;
160 static juint _PI_INV_TABLE[];
161 static address _PI_INV_TABLE_adr;
162 static juint _PI_4[];
163 static address _PI_4_adr;
164 static juint _PI32INV[];
165 static address _PI32INV_adr;
166 static juint _SIGN_MASK[];
167 static address _SIGN_MASK_adr;
168 static juint _P_1[];
169 static address _P_1_adr;
170 static juint _P_3[];
171 static address _P_3_adr;
172 static juint _NEG_ZERO[];
173 static address _NEG_ZERO_adr;
174
175 //tables common for LIBM sincos and tancot
176 static juint _L_2il0floatpacket_0[];
177 static address _L_2il0floatpacket_0_adr;
178 static juint _Pi4Inv[];
179 static address _Pi4Inv_adr;
180 static juint _Pi4x3[];
181 static address _Pi4x3_adr;
182 static juint _Pi4x4[];
183 static address _Pi4x4_adr;
184 static juint _ones[];
185 static address _ones_adr;
186
187 public:
188 static address verify_mxcsr_entry() { return _verify_mxcsr_entry; }
189 static address key_shuffle_mask_addr() { return _key_shuffle_mask_addr; }
190 static address counter_shuffle_mask_addr() { return _counter_shuffle_mask_addr; }
191 static address crc_by128_masks_addr() { return (address)_crc_by128_masks; }
192 static address ghash_long_swap_mask_addr() { return _ghash_long_swap_mask_addr; }
193 static address ghash_byte_swap_mask_addr() { return _ghash_byte_swap_mask_addr; }
194 static address upper_word_mask_addr() { return _upper_word_mask_addr; }
195 static address shuffle_byte_flip_mask_addr() { return _shuffle_byte_flip_mask_addr; }
196 static address k256_addr() { return _k256_adr; }
197 #ifdef _LP64
198 static address k256_W_addr() { return _k256_W_adr; }
199 static address k512_W_addr() { return _k512_W_addr; }
200 static address pshuffle_byte_flip_mask_addr_sha512() { return _pshuffle_byte_flip_mask_addr_sha512; }
201 #endif
202 static address pshuffle_byte_flip_mask_addr() { return _pshuffle_byte_flip_mask_addr; }
203 static void generate_CRC32C_table(bool is_pclmulqdq_supported);
204 static address _ONEHALF_addr() { return _ONEHALF_adr; }
205 static address _P_2_addr() { return _P_2_adr; }
206 static address _SC_4_addr() { return _SC_4_adr; }
207 static address _Ctable_addr() { return _Ctable_adr; }
208 static address _SC_2_addr() { return _SC_2_adr; }
209 static address _SC_3_addr() { return _SC_3_adr; }
210 static address _SC_1_addr() { return _SC_1_adr; }
211 static address _PI_INV_TABLE_addr() { return _PI_INV_TABLE_adr; }
212 static address _PI_4_addr() { return _PI_4_adr; }
213 static address _PI32INV_addr() { return _PI32INV_adr; }
214 static address _SIGN_MASK_addr() { return _SIGN_MASK_adr; }
215 static address _P_1_addr() { return _P_1_adr; }
216 static address _P_3_addr() { return _P_3_adr; }
217 static address _NEG_ZERO_addr() { return _NEG_ZERO_adr; }
218 static address _L_2il0floatpacket_0_addr() { return _L_2il0floatpacket_0_adr; }
219 static address _Pi4Inv_addr() { return _Pi4Inv_adr; }
220 static address _Pi4x3_addr() { return _Pi4x3_adr; }
221 static address _Pi4x4_addr() { return _Pi4x4_adr; }
222 static address _ones_addr() { return _ones_adr; }
223
224 };
225
226 #endif // CPU_X86_VM_STUBROUTINES_X86_HPP