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
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 = 35300 LP64_ONLY(+11400) // 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
100 #else // !LP64
101
102 private:
103 static address _verify_fpu_cntrl_wrd_entry;
104
105 public:
106 static address verify_fpu_cntrl_wrd_entry() { return _verify_fpu_cntrl_wrd_entry; }
107
108 #endif // !LP64
109
110 private:
111 static address _verify_mxcsr_entry;
112 // shuffle mask for fixing up 128-bit words consisting of big-endian 32-bit integers
113 static address _key_shuffle_mask_addr;
114
115 //shuffle mask for big-endian 128-bit integers
116 static address _counter_shuffle_mask_addr;
117
118 static address _method_entry_barrier;
119
120 // masks and table for CRC32
121 static uint64_t _crc_by128_masks[];
122 static juint _crc_table[];
123 // table for CRC32C
124 static juint* _crc32c_table;
125 // swap mask for ghash
126 static address _ghash_long_swap_mask_addr;
127 static address _ghash_byte_swap_mask_addr;
128 static address _ghash_poly_addr;
129 static address _ghash_shuffmask_addr;
130
131 // upper word mask for sha1
132 static address _upper_word_mask_addr;
133 // byte flip mask for sha1
134 static address _shuffle_byte_flip_mask_addr;
135
136 //k256 table for sha256
137 static juint _k256[];
138 static address _k256_adr;
139 static address _vector_short_to_byte_mask;
140 static address _vector_float_sign_mask;
141 static address _vector_float_sign_flip;
142 static address _vector_double_sign_mask;
143 static address _vector_double_sign_flip;
144 static address _vector_byte_perm_mask;
145 static address _vector_long_sign_mask;
146 #ifdef _LP64
147 static juint _k256_W[];
148 static address _k256_W_adr;
149 static julong _k512_W[];
150 static address _k512_W_addr;
151 // byte flip mask for sha512
152 static address _pshuffle_byte_flip_mask_addr_sha512;
153 static address _counter_mask_addr;
154 // Masks for base64
155 static address _base64_charset;
156 static address _bswap_mask;
157 static address _gather_mask;
158 static address _right_shift_mask;
159 static address _left_shift_mask;
160 static address _and_mask;
161 static address _url_charset;
162 #endif
163 // byte flip mask for sha256
164 static address _pshuffle_byte_flip_mask_addr;
165
166 //tables common for LIBM sin and cos
167 static juint _ONEHALF[];
168 static address _ONEHALF_adr;
169 static juint _P_2[];
170 static address _P_2_adr;
171 static juint _SC_4[];
172 static address _SC_4_adr;
173 static juint _Ctable[];
174 static address _Ctable_adr;
175 static juint _SC_2[];
176 static address _SC_2_adr;
177 static juint _SC_3[];
178 static address _SC_3_adr;
179 static juint _SC_1[];
180 static address _SC_1_adr;
181 static juint _PI_INV_TABLE[];
182 static address _PI_INV_TABLE_adr;
183 static juint _PI_4[];
184 static address _PI_4_adr;
185 static juint _PI32INV[];
186 static address _PI32INV_adr;
187 static juint _SIGN_MASK[];
188 static address _SIGN_MASK_adr;
189 static juint _P_1[];
190 static address _P_1_adr;
191 static juint _P_3[];
192 static address _P_3_adr;
193 static juint _NEG_ZERO[];
194 static address _NEG_ZERO_adr;
195
196 //tables common for LIBM sincos and tancot
197 static juint _L_2il0floatpacket_0[];
198 static address _L_2il0floatpacket_0_adr;
199 static juint _Pi4Inv[];
200 static address _Pi4Inv_adr;
201 static juint _Pi4x3[];
202 static address _Pi4x3_adr;
203 static juint _Pi4x4[];
204 static address _Pi4x4_adr;
205 static juint _ones[];
206 static address _ones_adr;
207
208 public:
209 static address verify_mxcsr_entry() { return _verify_mxcsr_entry; }
210 static address key_shuffle_mask_addr() { return _key_shuffle_mask_addr; }
211 static address counter_shuffle_mask_addr() { return _counter_shuffle_mask_addr; }
212 static address crc_by128_masks_addr() { return (address)_crc_by128_masks; }
213 static address ghash_long_swap_mask_addr() { return _ghash_long_swap_mask_addr; }
214 static address ghash_byte_swap_mask_addr() { return _ghash_byte_swap_mask_addr; }
215 static address ghash_shufflemask_addr() { return _ghash_shuffmask_addr; }
216 static address ghash_polynomial_addr() { return _ghash_poly_addr; }
217 static address upper_word_mask_addr() { return _upper_word_mask_addr; }
218 static address shuffle_byte_flip_mask_addr() { return _shuffle_byte_flip_mask_addr; }
219 static address k256_addr() { return _k256_adr; }
220 static address method_entry_barrier() { return _method_entry_barrier; }
221
222 static address vector_short_to_byte_mask() {
223 return _vector_short_to_byte_mask;
224 }
225 static address vector_float_sign_mask() {
226 return _vector_float_sign_mask;
227 }
228
229 static address vector_float_sign_flip() {
230 return _vector_float_sign_flip;
231 }
232
233 static address vector_double_sign_mask() {
234 return _vector_double_sign_mask;
235 }
236
237 static address vector_double_sign_flip() {
238 return _vector_double_sign_flip;
239 }
240
241 static address vector_byte_perm_mask() {
242 return _vector_byte_perm_mask;
243 }
244
245 static address vector_long_sign_mask() {
246 return _vector_long_sign_mask;
247 }
248 #ifdef _LP64
249 static address k256_W_addr() { return _k256_W_adr; }
250 static address k512_W_addr() { return _k512_W_addr; }
251 static address pshuffle_byte_flip_mask_addr_sha512() { return _pshuffle_byte_flip_mask_addr_sha512; }
252 static address base64_charset_addr() { return _base64_charset; }
253 static address base64url_charset_addr() { return _url_charset; }
254 static address base64_bswap_mask_addr() { return _bswap_mask; }
255 static address base64_gather_mask_addr() { return _gather_mask; }
256 static address base64_right_shift_mask_addr() { return _right_shift_mask; }
257 static address base64_left_shift_mask_addr() { return _left_shift_mask; }
258 static address base64_and_mask_addr() { return _and_mask; }
259 static address counter_mask_addr() { return _counter_mask_addr; }
260 #endif
261 static address pshuffle_byte_flip_mask_addr() { return _pshuffle_byte_flip_mask_addr; }
262 static void generate_CRC32C_table(bool is_pclmulqdq_supported);
263 static address _ONEHALF_addr() { return _ONEHALF_adr; }
264 static address _P_2_addr() { return _P_2_adr; }
265 static address _SC_4_addr() { return _SC_4_adr; }
266 static address _Ctable_addr() { return _Ctable_adr; }
267 static address _SC_2_addr() { return _SC_2_adr; }
268 static address _SC_3_addr() { return _SC_3_adr; }
269 static address _SC_1_addr() { return _SC_1_adr; }
270 static address _PI_INV_TABLE_addr() { return _PI_INV_TABLE_adr; }
271 static address _PI_4_addr() { return _PI_4_adr; }
272 static address _PI32INV_addr() { return _PI32INV_adr; }
273 static address _SIGN_MASK_addr() { return _SIGN_MASK_adr; }
274 static address _P_1_addr() { return _P_1_adr; }
275 static address _P_3_addr() { return _P_3_adr; }
276 static address _NEG_ZERO_addr() { return _NEG_ZERO_adr; }
277 static address _L_2il0floatpacket_0_addr() { return _L_2il0floatpacket_0_adr; }
278 static address _Pi4Inv_addr() { return _Pi4Inv_adr; }
279 static address _Pi4x3_addr() { return _Pi4x3_adr; }
280 static address _Pi4x4_addr() { return _Pi4x4_adr; }
281 static address _ones_addr() { return _ones_adr; }
282
283 };
284
285 #endif // CPU_X86_STUBROUTINES_X86_HPP