1/*
2 * Copyright (c) 2013, 2019, 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_STUBROUTINES_X86_HPP
26#define CPU_X86_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
32static bool returns_to_call_stub(address return_pc) { return return_pc == _call_stub_return_address; }
33
34enum platform_dependent_constants {
35 code_size1 = 20000 LP64_ONLY(+10000), // simply increase if too small (assembler will crash if too small)
36 code_size2 = 35300 LP64_ONLY(+11400) // simply increase if too small (assembler will crash if too small)
37};
38
39class 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 _method_entry_barrier;
59
60 public:
61
62 static address method_entry_barrier() {
63 return _method_entry_barrier;
64 }
65
66 static address get_previous_fp_entry() {
67 return _get_previous_fp_entry;
68 }
69
70 static address get_previous_sp_entry() {
71 return _get_previous_sp_entry;
72 }
73
74 static address f2i_fixup() {
75 return _f2i_fixup;
76 }
77
78 static address f2l_fixup() {
79 return _f2l_fixup;
80 }
81
82 static address d2i_fixup() {
83 return _d2i_fixup;
84 }
85
86 static address d2l_fixup() {
87 return _d2l_fixup;
88 }
89
90 static address float_sign_mask() {
91 return _float_sign_mask;
92 }
93
94 static address float_sign_flip() {
95 return _float_sign_flip;
96 }
97
98 static address double_sign_mask() {
99 return _double_sign_mask;
100 }
101
102 static address double_sign_flip() {
103 return _double_sign_flip;
104 }
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 static address _ghash_poly_addr;
133 static address _ghash_shuffmask_addr;
134
135 // upper word mask for sha1
136 static address _upper_word_mask_addr;
137 // byte flip mask for sha1
138 static address _shuffle_byte_flip_mask_addr;
139
140 //k256 table for sha256
141 static juint _k256[];
142 static address _k256_adr;
143 static address _vector_short_to_byte_mask;
144 static address _vector_float_sign_mask;
145 static address _vector_float_sign_flip;
146 static address _vector_double_sign_mask;
147 static address _vector_double_sign_flip;
148 static address _vector_byte_perm_mask;
149 static address _vector_long_sign_mask;
150#ifdef _LP64
151 static juint _k256_W[];
152 static address _k256_W_adr;
153 static julong _k512_W[];
154 static address _k512_W_addr;
155 // byte flip mask for sha512
156 static address _pshuffle_byte_flip_mask_addr_sha512;
157 // Masks for base64
158 static address _base64_charset;
159 static address _bswap_mask;
160 static address _gather_mask;
161 static address _right_shift_mask;
162 static address _left_shift_mask;
163 static address _and_mask;
164 static address _url_charset;
165#endif
166 // byte flip mask for sha256
167 static address _pshuffle_byte_flip_mask_addr;
168
169 //tables common for LIBM sin and cos
170 static juint _ONEHALF[];
171 static address _ONEHALF_adr;
172 static juint _P_2[];
173 static address _P_2_adr;
174 static juint _SC_4[];
175 static address _SC_4_adr;
176 static juint _Ctable[];
177 static address _Ctable_adr;
178 static juint _SC_2[];
179 static address _SC_2_adr;
180 static juint _SC_3[];
181 static address _SC_3_adr;
182 static juint _SC_1[];
183 static address _SC_1_adr;
184 static juint _PI_INV_TABLE[];
185 static address _PI_INV_TABLE_adr;
186 static juint _PI_4[];
187 static address _PI_4_adr;
188 static juint _PI32INV[];
189 static address _PI32INV_adr;
190 static juint _SIGN_MASK[];
191 static address _SIGN_MASK_adr;
192 static juint _P_1[];
193 static address _P_1_adr;
194 static juint _P_3[];
195 static address _P_3_adr;
196 static juint _NEG_ZERO[];
197 static address _NEG_ZERO_adr;
198
199 //tables common for LIBM sincos and tancot
200 static juint _L_2il0floatpacket_0[];
201 static address _L_2il0floatpacket_0_adr;
202 static juint _Pi4Inv[];
203 static address _Pi4Inv_adr;
204 static juint _Pi4x3[];
205 static address _Pi4x3_adr;
206 static juint _Pi4x4[];
207 static address _Pi4x4_adr;
208 static juint _ones[];
209 static address _ones_adr;
210
211 public:
212 static address verify_mxcsr_entry() { return _verify_mxcsr_entry; }
213 static address key_shuffle_mask_addr() { return _key_shuffle_mask_addr; }
214 static address counter_shuffle_mask_addr() { return _counter_shuffle_mask_addr; }
215 static address crc_by128_masks_addr() { return (address)_crc_by128_masks; }
216 static address ghash_long_swap_mask_addr() { return _ghash_long_swap_mask_addr; }
217 static address ghash_byte_swap_mask_addr() { return _ghash_byte_swap_mask_addr; }
218 static address ghash_shufflemask_addr() { return _ghash_shuffmask_addr; }
219 static address ghash_polynomial_addr() { return _ghash_poly_addr; }
220 static address upper_word_mask_addr() { return _upper_word_mask_addr; }
221 static address shuffle_byte_flip_mask_addr() { return _shuffle_byte_flip_mask_addr; }
222 static address k256_addr() { return _k256_adr; }
223
224 static address vector_short_to_byte_mask() {
225 return _vector_short_to_byte_mask;
226 }
227 static address vector_float_sign_mask() {
228 return _vector_float_sign_mask;
229 }
230
231 static address vector_float_sign_flip() {
232 return _vector_float_sign_flip;
233 }
234
235 static address vector_double_sign_mask() {
236 return _vector_double_sign_mask;
237 }
238
239 static address vector_double_sign_flip() {
240 return _vector_double_sign_flip;
241 }
242
243 static address vector_byte_perm_mask() {
244 return _vector_byte_perm_mask;
245 }
246
247 static address vector_long_sign_mask() {
248 return _vector_long_sign_mask;
249 }
250#ifdef _LP64
251 static address k256_W_addr() { return _k256_W_adr; }
252 static address k512_W_addr() { return _k512_W_addr; }
253 static address pshuffle_byte_flip_mask_addr_sha512() { return _pshuffle_byte_flip_mask_addr_sha512; }
254 static address base64_charset_addr() { return _base64_charset; }
255 static address base64url_charset_addr() { return _url_charset; }
256 static address base64_bswap_mask_addr() { return _bswap_mask; }
257 static address base64_gather_mask_addr() { return _gather_mask; }
258 static address base64_right_shift_mask_addr() { return _right_shift_mask; }
259 static address base64_left_shift_mask_addr() { return _left_shift_mask; }
260 static address base64_and_mask_addr() { return _and_mask; }
261#endif
262 static address pshuffle_byte_flip_mask_addr() { return _pshuffle_byte_flip_mask_addr; }
263 static void generate_CRC32C_table(bool is_pclmulqdq_supported);
264 static address _ONEHALF_addr() { return _ONEHALF_adr; }
265 static address _P_2_addr() { return _P_2_adr; }
266 static address _SC_4_addr() { return _SC_4_adr; }
267 static address _Ctable_addr() { return _Ctable_adr; }
268 static address _SC_2_addr() { return _SC_2_adr; }
269 static address _SC_3_addr() { return _SC_3_adr; }
270 static address _SC_1_addr() { return _SC_1_adr; }
271 static address _PI_INV_TABLE_addr() { return _PI_INV_TABLE_adr; }
272 static address _PI_4_addr() { return _PI_4_adr; }
273 static address _PI32INV_addr() { return _PI32INV_adr; }
274 static address _SIGN_MASK_addr() { return _SIGN_MASK_adr; }
275 static address _P_1_addr() { return _P_1_adr; }
276 static address _P_3_addr() { return _P_3_adr; }
277 static address _NEG_ZERO_addr() { return _NEG_ZERO_adr; }
278 static address _L_2il0floatpacket_0_addr() { return _L_2il0floatpacket_0_adr; }
279 static address _Pi4Inv_addr() { return _Pi4Inv_adr; }
280 static address _Pi4x3_addr() { return _Pi4x3_adr; }
281 static address _Pi4x4_addr() { return _Pi4x4_adr; }
282 static address _ones_addr() { return _ones_adr; }
283
284};
285
286#endif // CPU_X86_STUBROUTINES_X86_HPP
287