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 static address load_barrier_slow_stub(Register reg) { return _load_barrier_slow_stub[reg->encoding()]; }
63 static address load_barrier_weak_slow_stub(Register reg) { return _load_barrier_weak_slow_stub[reg->encoding()]; }
64
65 static address get_previous_fp_entry() {
66 return _get_previous_fp_entry;
67 }
68
69 static address get_previous_sp_entry() {
70 return _get_previous_sp_entry;
71 }
72
73 static address f2i_fixup() {
74 return _f2i_fixup;
75 }
76
77 static address f2l_fixup() {
78 return _f2l_fixup;
79 }
80
81 static address d2i_fixup() {
82 return _d2i_fixup;
83 }
84
85 static address d2l_fixup() {
86 return _d2l_fixup;
87 }
88
89 static address float_sign_mask() {
90 return _float_sign_mask;
91 }
92
93 static address float_sign_flip() {
94 return _float_sign_flip;
95 }
96
97 static address double_sign_mask() {
98 return _double_sign_mask;
99 }
100
101 static address double_sign_flip() {
102 return _double_sign_flip;
103 }
104 #else // !LP64
105
106 private:
107 static address _verify_fpu_cntrl_wrd_entry;
108
109 public:
110 static address verify_fpu_cntrl_wrd_entry() { return _verify_fpu_cntrl_wrd_entry; }
111
112 #endif // !LP64
113
114 private:
115 static address _verify_mxcsr_entry;
116 // shuffle mask for fixing up 128-bit words consisting of big-endian 32-bit integers
117 static address _key_shuffle_mask_addr;
118
119 //shuffle mask for big-endian 128-bit integers
120 static address _counter_shuffle_mask_addr;
121
122 // masks and table for CRC32
123 static uint64_t _crc_by128_masks[];
124 static juint _crc_table[];
125 // table for CRC32C
126 static juint* _crc32c_table;
127 // swap mask for ghash
128 static address _ghash_long_swap_mask_addr;
129 static address _ghash_byte_swap_mask_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 #ifdef _LP64
140 static juint _k256_W[];
141 static address _k256_W_adr;
142 static julong _k512_W[];
143 static address _k512_W_addr;
144 // byte flip mask for sha512
145 static address _pshuffle_byte_flip_mask_addr_sha512;
146 #endif
147 // byte flip mask for sha256
148 static address _pshuffle_byte_flip_mask_addr;
149
150 //tables common for LIBM sin and cos
151 static juint _ONEHALF[];
152 static address _ONEHALF_adr;
153 static juint _P_2[];
154 static address _P_2_adr;
155 static juint _SC_4[];
156 static address _SC_4_adr;
157 static juint _Ctable[];
158 static address _Ctable_adr;
159 static juint _SC_2[];
160 static address _SC_2_adr;
161 static juint _SC_3[];
162 static address _SC_3_adr;
163 static juint _SC_1[];
164 static address _SC_1_adr;
165 static juint _PI_INV_TABLE[];
166 static address _PI_INV_TABLE_adr;
167 static juint _PI_4[];
168 static address _PI_4_adr;
169 static juint _PI32INV[];
170 static address _PI32INV_adr;
171 static juint _SIGN_MASK[];
172 static address _SIGN_MASK_adr;
173 static juint _P_1[];
174 static address _P_1_adr;
175 static juint _P_3[];
176 static address _P_3_adr;
177 static juint _NEG_ZERO[];
178 static address _NEG_ZERO_adr;
179
180 //tables common for LIBM sincos and tancot
181 static juint _L_2il0floatpacket_0[];
182 static address _L_2il0floatpacket_0_adr;
183 static juint _Pi4Inv[];
184 static address _Pi4Inv_adr;
185 static juint _Pi4x3[];
186 static address _Pi4x3_adr;
187 static juint _Pi4x4[];
188 static address _Pi4x4_adr;
189 static juint _ones[];
190 static address _ones_adr;
191
192 public:
193 static address verify_mxcsr_entry() { return _verify_mxcsr_entry; }
194 static address key_shuffle_mask_addr() { return _key_shuffle_mask_addr; }
195 static address counter_shuffle_mask_addr() { return _counter_shuffle_mask_addr; }
196 static address crc_by128_masks_addr() { return (address)_crc_by128_masks; }
197 static address ghash_long_swap_mask_addr() { return _ghash_long_swap_mask_addr; }
198 static address ghash_byte_swap_mask_addr() { return _ghash_byte_swap_mask_addr; }
199 static address upper_word_mask_addr() { return _upper_word_mask_addr; }
200 static address shuffle_byte_flip_mask_addr() { return _shuffle_byte_flip_mask_addr; }
201 static address k256_addr() { return _k256_adr; }
202 #ifdef _LP64
203 static address k256_W_addr() { return _k256_W_adr; }
204 static address k512_W_addr() { return _k512_W_addr; }
205 static address pshuffle_byte_flip_mask_addr_sha512() { return _pshuffle_byte_flip_mask_addr_sha512; }
206 #endif
207 static address pshuffle_byte_flip_mask_addr() { return _pshuffle_byte_flip_mask_addr; }
208 static void generate_CRC32C_table(bool is_pclmulqdq_supported);
209 static address _ONEHALF_addr() { return _ONEHALF_adr; }
210 static address _P_2_addr() { return _P_2_adr; }
211 static address _SC_4_addr() { return _SC_4_adr; }
212 static address _Ctable_addr() { return _Ctable_adr; }
213 static address _SC_2_addr() { return _SC_2_adr; }
214 static address _SC_3_addr() { return _SC_3_adr; }
215 static address _SC_1_addr() { return _SC_1_adr; }
216 static address _PI_INV_TABLE_addr() { return _PI_INV_TABLE_adr; }
217 static address _PI_4_addr() { return _PI_4_adr; }
218 static address _PI32INV_addr() { return _PI32INV_adr; }
219 static address _SIGN_MASK_addr() { return _SIGN_MASK_adr; }
220 static address _P_1_addr() { return _P_1_adr; }
221 static address _P_3_addr() { return _P_3_adr; }
222 static address _NEG_ZERO_addr() { return _NEG_ZERO_adr; }
223 static address _L_2il0floatpacket_0_addr() { return _L_2il0floatpacket_0_adr; }
224 static address _Pi4Inv_addr() { return _Pi4Inv_adr; }
225 static address _Pi4x3_addr() { return _Pi4x3_adr; }
226 static address _Pi4x4_addr() { return _Pi4x4_adr; }
227 static address _ones_addr() { return _ones_adr; }
228
229 };
230
231 #endif // CPU_X86_VM_STUBROUTINES_X86_HPP