1 /*
2 * Copyright (c) 2013, Red Hat Inc.
3 * Copyright (c) 2003, 2011, Oracle and/or its affiliates.
4 * All rights reserved.
5 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 *
7 * This code is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License version 2 only, as
9 * published by the Free Software Foundation.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 *
25 */
26
27 #ifndef CPU_AARCH64_VM_STUBROUTINES_AARCH64_HPP
28 #define CPU_AARCH64_VM_STUBROUTINES_AARCH64_HPP
29
30 // This file holds the platform specific parts of the StubRoutines
31 // definition. See stubRoutines.hpp for a description on how to
32 // extend it.
33
returns_to_call_stub(address return_pc)34 static bool returns_to_call_stub(address return_pc) {
35 return return_pc == _call_stub_return_address;
36 }
37
38 enum platform_dependent_constants {
39 code_size1 = 19000, // simply increase if too small (assembler will crash if too small)
40 code_size2 = 22000 // simply increase if too small (assembler will crash if too small)
41 };
42
43 class aarch64 {
44 friend class StubGenerator;
45
46 private:
47 static address _get_previous_fp_entry;
48 static address _get_previous_sp_entry;
49
50 static address _f2i_fixup;
51 static address _f2l_fixup;
52 static address _d2i_fixup;
53 static address _d2l_fixup;
54
55 static address _float_sign_mask;
56 static address _float_sign_flip;
57 static address _double_sign_mask;
58 static address _double_sign_flip;
59
60 static address _zero_longs;
61
62 public:
63
get_previous_fp_entry()64 static address get_previous_fp_entry()
65 {
66 return _get_previous_fp_entry;
67 }
68
get_previous_sp_entry()69 static address get_previous_sp_entry()
70 {
71 return _get_previous_sp_entry;
72 }
73
f2i_fixup()74 static address f2i_fixup()
75 {
76 return _f2i_fixup;
77 }
78
f2l_fixup()79 static address f2l_fixup()
80 {
81 return _f2l_fixup;
82 }
83
d2i_fixup()84 static address d2i_fixup()
85 {
86 return _d2i_fixup;
87 }
88
d2l_fixup()89 static address d2l_fixup()
90 {
91 return _d2l_fixup;
92 }
93
float_sign_mask()94 static address float_sign_mask()
95 {
96 return _float_sign_mask;
97 }
98
float_sign_flip()99 static address float_sign_flip()
100 {
101 return _float_sign_flip;
102 }
103
double_sign_mask()104 static address double_sign_mask()
105 {
106 return _double_sign_mask;
107 }
108
double_sign_flip()109 static address double_sign_flip()
110 {
111 return _double_sign_flip;
112 }
113
get_zero_longs()114 static address get_zero_longs()
115 {
116 return _zero_longs;
117 }
118
119 private:
120 static juint _crc_table[];
121
122 };
123
124 #endif // CPU_AARCH64_VM_STUBROUTINES_AARCH64_HPP
125