1 /*
2 * Copyright (c) 2003, 2011, 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_VM_STUBROUTINES_AARCH64_HPP
27 #define CPU_AARCH64_VM_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 // n.b. if we are notifying entry/exit to the simulator then the call
34 // stub does a notify at normal return placing
35 // call_stub_return_address one instruction beyond the notify. the
36 // latter address is sued by the stack unwind code when doign an
37 // exception return.
returns_to_call_stub(address return_pc)38 static bool returns_to_call_stub(address return_pc) {
39 return return_pc == _call_stub_return_address + (NotifySimulator ? -4 : 0);
40 }
41
42 enum platform_dependent_constants {
43 code_size1 = 19000, // simply increase if too small (assembler will crash if too small)
44 code_size2 = 28000 // simply increase if too small (assembler will crash if too small)
45 };
46
47 class aarch64 {
48 friend class StubGenerator;
49
50 private:
51 static address _get_previous_fp_entry;
52 static address _get_previous_sp_entry;
53
54 static address _f2i_fixup;
55 static address _f2l_fixup;
56 static address _d2i_fixup;
57 static address _d2l_fixup;
58
59 static address _float_sign_mask;
60 static address _float_sign_flip;
61 static address _double_sign_mask;
62 static address _double_sign_flip;
63
64 static address _zero_blocks;
65
66 static address _has_negatives;
67 static address _has_negatives_long;
68 static address _large_array_equals;
69 static address _compare_long_string_LL;
70 static address _compare_long_string_LU;
71 static address _compare_long_string_UL;
72 static address _compare_long_string_UU;
73 static address _string_indexof_linear_ll;
74 static address _string_indexof_linear_uu;
75 static address _string_indexof_linear_ul;
76 static address _large_byte_array_inflate;
77 static bool _completed;
78
79 public:
80
get_previous_fp_entry()81 static address get_previous_fp_entry()
82 {
83 return _get_previous_fp_entry;
84 }
85
get_previous_sp_entry()86 static address get_previous_sp_entry()
87 {
88 return _get_previous_sp_entry;
89 }
90
f2i_fixup()91 static address f2i_fixup()
92 {
93 return _f2i_fixup;
94 }
95
f2l_fixup()96 static address f2l_fixup()
97 {
98 return _f2l_fixup;
99 }
100
d2i_fixup()101 static address d2i_fixup()
102 {
103 return _d2i_fixup;
104 }
105
d2l_fixup()106 static address d2l_fixup()
107 {
108 return _d2l_fixup;
109 }
110
float_sign_mask()111 static address float_sign_mask()
112 {
113 return _float_sign_mask;
114 }
115
float_sign_flip()116 static address float_sign_flip()
117 {
118 return _float_sign_flip;
119 }
120
double_sign_mask()121 static address double_sign_mask()
122 {
123 return _double_sign_mask;
124 }
125
double_sign_flip()126 static address double_sign_flip()
127 {
128 return _double_sign_flip;
129 }
130
zero_blocks()131 static address zero_blocks() {
132 return _zero_blocks;
133 }
134
has_negatives()135 static address has_negatives() {
136 return _has_negatives;
137 }
138
has_negatives_long()139 static address has_negatives_long() {
140 return _has_negatives_long;
141 }
142
large_array_equals()143 static address large_array_equals() {
144 return _large_array_equals;
145 }
146
compare_long_string_LL()147 static address compare_long_string_LL() {
148 return _compare_long_string_LL;
149 }
150
compare_long_string_LU()151 static address compare_long_string_LU() {
152 return _compare_long_string_LU;
153 }
154
compare_long_string_UL()155 static address compare_long_string_UL() {
156 return _compare_long_string_UL;
157 }
158
compare_long_string_UU()159 static address compare_long_string_UU() {
160 return _compare_long_string_UU;
161 }
162
string_indexof_linear_ul()163 static address string_indexof_linear_ul() {
164 return _string_indexof_linear_ul;
165 }
166
string_indexof_linear_ll()167 static address string_indexof_linear_ll() {
168 return _string_indexof_linear_ll;
169 }
170
string_indexof_linear_uu()171 static address string_indexof_linear_uu() {
172 return _string_indexof_linear_uu;
173 }
174
large_byte_array_inflate()175 static address large_byte_array_inflate() {
176 return _large_byte_array_inflate;
177 }
178
complete()179 static bool complete() {
180 return _completed;
181 }
182
set_completed()183 static void set_completed() {
184 _completed = true;
185 }
186
187 private:
188 static juint _crc_table[];
189 // begin trigonometric tables block. See comments in .cpp file
190 static juint _npio2_hw[];
191 static jdouble _two_over_pi[];
192 static jdouble _pio2[];
193 static jdouble _dsin_coef[];
194 static jdouble _dcos_coef[];
195 // end trigonometric tables block
196 };
197
198 #endif // CPU_AARCH64_VM_STUBROUTINES_AARCH64_HPP
199