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 = 28000 // 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_fp_entry;
47 static address _get_previous_sp_entry;
48
49 static address _f2i_fixup;
50 static address _f2l_fixup;
51 static address _d2i_fixup;
52 static address _d2l_fixup;
53
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 bool _completed;
76
77 public:
78
79 static address get_previous_fp_entry()
80 {
81 return _get_previous_fp_entry;
82 }
83
84 static address get_previous_sp_entry()
85 {
86 return _get_previous_sp_entry;
87 }
88
89 static address f2i_fixup()
90 {
91 return _f2i_fixup;
92 }
93
94 static address f2l_fixup()
95 {
96 return _f2l_fixup;
97 }
98
99 static address d2i_fixup()
100 {
101 return _d2i_fixup;
102 }
103
104 static address d2l_fixup()
105 {
106 return _d2l_fixup;
107 }
108
109 static address float_sign_mask()
110 {
111 return _float_sign_mask;
112 }
113
114 static address float_sign_flip()
115 {
116 return _float_sign_flip;
117 }
118
119 static address double_sign_mask()
120 {
121 return _double_sign_mask;
122 }
123
124 static address double_sign_flip()
125 {
126 return _double_sign_flip;
127 }
128
129 static address zero_blocks() {
130 return _zero_blocks;
131 }
132
133 static address has_negatives() {
134 return _has_negatives;
135 }
136
137 static address has_negatives_long() {
138 return _has_negatives_long;
139 }
140
141 static address large_array_equals() {
142 return _large_array_equals;
143 }
144
145 static address compare_long_string_LL() {
146 return _compare_long_string_LL;
147 }
148
149 static address compare_long_string_LU() {
150 return _compare_long_string_LU;
151 }
152
153 static address compare_long_string_UL() {
154 return _compare_long_string_UL;
155 }
156
157 static address compare_long_string_UU() {
158 return _compare_long_string_UU;
159 }
160
161 static address string_indexof_linear_ul() {
162 return _string_indexof_linear_ul;
163 }
164
165 static address string_indexof_linear_ll() {
166 return _string_indexof_linear_ll;
167 }
168
169 static address string_indexof_linear_uu() {
170 return _string_indexof_linear_uu;
171 }
172
173 static address large_byte_array_inflate() {
174 return _large_byte_array_inflate;
175 }
176
177 static address method_entry_barrier() {
178 return _method_entry_barrier;
179 }
180
181 static bool complete() {
182 return _completed;
183 }
184
185 static void set_completed() {
186 _completed = true;
187 }
188
189 private:
190 static juint _crc_table[];
191 static jubyte _adler_table[];
192 // begin trigonometric tables block. See comments in .cpp file
193 static juint _npio2_hw[];
194 static jdouble _two_over_pi[];
195 static jdouble _pio2[];
196 static jdouble _dsin_coef[];
197 static jdouble _dcos_coef[];
198 // end trigonometric tables block
199 };
200
201 #endif // CPU_AARCH64_STUBROUTINES_AARCH64_HPP