1 /*
2 * Copyright (c) 2003, 2020, Oracle and/or its affiliates. All rights reserved.
3 * Copyright (c) 2014, Red Hat Inc. All rights reserved.
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5 *
6 * This code is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 only, as
8 * published by the Free Software Foundation.
9 *
10 * This code is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 * version 2 for more details (a copy is included in the LICENSE file that
14 * accompanied this code).
15 *
16 * You should have received a copy of the GNU General Public License version
17 * 2 along with this work; if not, write to the Free Software Foundation,
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19 *
20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21 * or visit www.oracle.com if you need additional information or have any
22 * questions.
23 *
24 */
25
26 #ifndef CPU_AARCH64_STUBROUTINES_AARCH64_HPP
27 #define CPU_AARCH64_STUBROUTINES_AARCH64_HPP
28
29 // This file holds the platform specific parts of the StubRoutines
30 // definition. See stubRoutines.hpp for a description on how to
31 // extend it.
32
33 static bool returns_to_call_stub(address return_pc) {
34 return return_pc == _call_stub_return_address;
35 }
36
37 enum platform_dependent_constants {
38 code_size1 = 19000, // simply increase if too small (assembler will crash if too small)
39 code_size2 = 45000 // simply increase if too small (assembler will crash if too small)
40 };
41
42 class aarch64 {
43 friend class StubGenerator;
44
45 private:
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 _vector_iota_indices;
54 static address _float_sign_mask;
55 static address _float_sign_flip;
56 static address _double_sign_mask;
57 static address _double_sign_flip;
58
59 static address _zero_blocks;
60
61 static address _has_negatives;
62 static address _has_negatives_long;
63 static address _large_array_equals;
64 static address _compare_long_string_LL;
65 static address _compare_long_string_LU;
66 static address _compare_long_string_UL;
67 static address _compare_long_string_UU;
68 static address _string_indexof_linear_ll;
69 static address _string_indexof_linear_uu;
70 static address _string_indexof_linear_ul;
71 static address _large_byte_array_inflate;
72
73 static address _method_entry_barrier;
74
75 static address _spin_wait;
76
77 static bool _completed;
78
79 public:
80
81 static address get_previous_sp_entry()
82 {
83 return _get_previous_sp_entry;
84 }
85
86 static address f2i_fixup()
87 {
88 return _f2i_fixup;
89 }
90
91 static address f2l_fixup()
92 {
93 return _f2l_fixup;
94 }
95
96 static address d2i_fixup()
97 {
98 return _d2i_fixup;
99 }
100
101 static address d2l_fixup()
102 {
103 return _d2l_fixup;
104 }
105
106 static address vector_iota_indices() {
107 return _vector_iota_indices;
108 }
109
110 static address float_sign_mask()
111 {
112 return _float_sign_mask;
113 }
114
115 static address float_sign_flip()
116 {
117 return _float_sign_flip;
118 }
119
120 static address double_sign_mask()
121 {
122 return _double_sign_mask;
123 }
124
125 static address double_sign_flip()
126 {
127 return _double_sign_flip;
128 }
129
130 static address zero_blocks() {
131 return _zero_blocks;
132 }
133
134 static address has_negatives() {
135 return _has_negatives;
136 }
137
138 static address has_negatives_long() {
139 return _has_negatives_long;
140 }
141
142 static address large_array_equals() {
143 return _large_array_equals;
144 }
145
146 static address compare_long_string_LL() {
147 return _compare_long_string_LL;
148 }
149
150 static address compare_long_string_LU() {
151 return _compare_long_string_LU;
152 }
153
154 static address compare_long_string_UL() {
155 return _compare_long_string_UL;
156 }
157
158 static address compare_long_string_UU() {
159 return _compare_long_string_UU;
160 }
161
162 static address string_indexof_linear_ul() {
163 return _string_indexof_linear_ul;
164 }
165
166 static address string_indexof_linear_ll() {
167 return _string_indexof_linear_ll;
168 }
169
170 static address string_indexof_linear_uu() {
171 return _string_indexof_linear_uu;
172 }
173
174 static address large_byte_array_inflate() {
175 return _large_byte_array_inflate;
176 }
177
178 static address method_entry_barrier() {
179 return _method_entry_barrier;
180 }
181
182 static address spin_wait() {
183 return _spin_wait;
184 }
185
186 static bool complete() {
187 return _completed;
188 }
189
190 static void set_completed() {
191 _completed = true;
192 }
193
194 private:
195 static juint _crc_table[];
196 static jubyte _adler_table[];
197 // begin trigonometric tables block. See comments in .cpp file
198 static juint _npio2_hw[];
199 static jdouble _two_over_pi[];
200 static jdouble _pio2[];
201 static jdouble _dsin_coef[];
202 static jdouble _dcos_coef[];
203 // end trigonometric tables block
204 };
205
206 #endif // CPU_AARCH64_STUBROUTINES_AARCH64_HPP