1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
|
/* This file is part of the GNU C Library.
Copyright (C) 2012-2017 Free Software Foundation, Inc.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <sysdep.h>
#ifdef __ASSEMBLER__
# ifdef SHARED
# define SPARC_ASM_IFUNC_DFLT(name, dflt) \
ENTRY (__##name) \
.type __##name, @gnu_indirect_function; \
SETUP_PIC_REG_LEAF(o3, o5); \
sethi %gdop_hix22(dflt), %o1; \
xor %o1, %gdop_lox10(dflt), %o1; \
add %o3, %o1, %o1; \
retl; \
mov %o1, %o0; \
END (__##name)
# define SPARC_ASM_IFUNC1(name, m1, f1, dflt) \
ENTRY (__##name) \
.type __##name, @gnu_indirect_function; \
SETUP_PIC_REG_LEAF(o3, o5); \
set m1, %o1; \
andcc %o0, %o1, %g0; \
be 9f; \
nop; \
sethi %gdop_hix22(f1), %o1; \
xor %o1, %gdop_lox10(f1), %o1; \
ba 10f; \
nop; \
9: sethi %gdop_hix22(dflt), %o1; \
xor %o1, %gdop_lox10(dflt), %o1; \
10: add %o3, %o1, %o1; \
retl; \
mov %o1, %o0; \
END (__##name)
# define SPARC_ASM_IFUNC2(name, m1, f1, m2, f2, dflt) \
ENTRY (__##name) \
.type __##name, @gnu_indirect_function; \
SETUP_PIC_REG_LEAF(o3, o5); \
set m1, %o1; \
andcc %o0, %o1, %g0; \
be 8f; \
nop; \
sethi %gdop_hix22(f1), %o1; \
xor %o1, %gdop_lox10(f1), %o1; \
ba 10f; \
nop; \
8: set m2, %o1; \
andcc %o0, %o1, %g0; \
be 9f; \
nop; \
sethi %gdop_hix22(f2), %o1; \
xor %o1, %gdop_lox10(f2), %o1; \
ba 10f; \
nop; \
9: sethi %gdop_hix22(dflt), %o1; \
xor %o1, %gdop_lox10(dflt), %o1; \
10: add %o3, %o1, %o1; \
retl; \
mov %o1, %o0; \
END (__##name)
# else /* SHARED */
# ifdef __arch64__
# define SET(SYM, TMP, REG) setx SYM, TMP, REG
# else
# define SET(SYM, TMP, REG) set SYM, REG
# endif
# define SPARC_ASM_IFUNC_DFLT(name, dflt) \
ENTRY (__##name) \
.type __##name, @gnu_indirect_function; \
SET(dflt, %g1, %o1); \
retl; \
mov %o1, %o0; \
END (__##name)
# define SPARC_ASM_IFUNC1(name, m1, f1, dflt) \
ENTRY (__##name) \
.type __##name, @gnu_indirect_function; \
set m1, %o1; \
andcc %o0, %o1, %g0; \
be 9f; \
nop; \
SET(f1, %g1, %o1); \
ba 10f; \
nop; \
9: SET(dflt, %g1, %o1); \
10: retl; \
mov %o1, %o0; \
END (__##name)
# define SPARC_ASM_IFUNC2(name, m1, f1, m2, f2, dflt) \
ENTRY (__##name) \
.type __##name, @gnu_indirect_function; \
set m1, %o1; \
andcc %o0, %o1, %g0; \
be 8f; \
nop; \
SET(f1, %g1, %o1); \
ba 10f; \
nop; \
8: set m2, %o1; \
andcc %o0, %o1, %g0; \
be 9f; \
nop; \
SET(f2, %g1, %o1); \
ba 10f; \
nop; \
9: SET(dflt, %g1, %o1); \
10: retl; \
mov %o1, %o0; \
END (__##name)
# endif /* SHARED */
#define SPARC_ASM_VIS2_IFUNC(name) \
SPARC_ASM_IFUNC1(name, HWCAP_SPARC_VIS2, \
__##name##_vis2, __##name##_generic)
# ifdef HAVE_AS_VIS3_SUPPORT
#define SPARC_ASM_VIS3_IFUNC(name) \
SPARC_ASM_IFUNC1(name, HWCAP_SPARC_VIS3, \
__##name##_vis3, __##name##_generic)
#define SPARC_ASM_VIS3_VIS2_IFUNC(name) \
SPARC_ASM_IFUNC2(name, HWCAP_SPARC_VIS3, \
__##name##_vis3, \
HWCAP_SPARC_VIS2, \
__##name##_vis2, __##name##_generic)
# else /* HAVE_AS_VIS3_SUPPORT */
#define SPARC_ASM_VIS3_IFUNC(name) \
SPARC_ASM_IFUNC_DFLT(name, __##name##_generic)
#define SPARC_ASM_VIS3_VIS2_IFUNC(name) \
SPARC_ASM_VIS2_IFUNC(name)
# endif /* HAVE_AS_VIS3_SUPPORT */
#else /* __ASSEMBLER__ */
# define INIT_ARCH()
# define sparc_libc_ifunc_redirected(redirected_name, name, expr) \
__ifunc (redirected_name, name, expr(hwcap), int hwcap, INIT_ARCH)
# define sparc_libm_ifunc(name, expr) \
__ifunc (name, name, expr, int hwcap, libm_ifunc_init)
# define sparc_libc_ifunc(name, expr) sparc_libm_ifunc (name, expr)
/* It essentially does libc_hidden_builtin_def (name) and redirect
the internal redirected symbol to ifunc implementation. */
# if defined SHARED
# define sparc_ifunc_redirected_hidden_def(redirect_name, name) \
__hidden_ver1 (name, __GI_##name, redirect_name) \
__attribute__ ((visibility ("hidden")));
# else
# define sparc_ifunc_redirected_hidden_def(redirect_name, name)
# endif
#endif /* __ASSEMBLER__ */
|
