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
|
/* Processor capability information handling macros. PowerPC version.
Copyright (C) 2005-2013 Free Software Foundation, Inc.
This file is part of the GNU C Library.
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/>. */
#ifndef _DL_PROCINFO_H
#define _DL_PROCINFO_H 1
#include <ldsodefs.h>
#include <sysdep.h> /* This defines the PPC_FEATURE_* macros. */
/* There are 25 bits used, but they are bits 7..31. */
#define _DL_HWCAP_FIRST 7
#define _DL_HWCAP_COUNT 32
/* These bits influence library search. */
#define HWCAP_IMPORTANT (PPC_FEATURE_HAS_ALTIVEC \
+ PPC_FEATURE_HAS_DFP)
#define _DL_PLATFORMS_COUNT 13
#define _DL_FIRST_PLATFORM 32
/* Mask to filter out platforms. */
#define _DL_HWCAP_PLATFORM (((1ULL << _DL_PLATFORMS_COUNT) - 1) \
<< _DL_FIRST_PLATFORM)
/* Platform bits (relative to _DL_FIRST_PLATFORM). */
#define PPC_PLATFORM_POWER4 0
#define PPC_PLATFORM_PPC970 1
#define PPC_PLATFORM_POWER5 2
#define PPC_PLATFORM_POWER5_PLUS 3
#define PPC_PLATFORM_POWER6 4
#define PPC_PLATFORM_CELL_BE 5
#define PPC_PLATFORM_POWER6X 6
#define PPC_PLATFORM_POWER7 7
#define PPC_PLATFORM_PPCA2 8
#define PPC_PLATFORM_PPC405 9
#define PPC_PLATFORM_PPC440 10
#define PPC_PLATFORM_PPC464 11
#define PPC_PLATFORM_PPC476 12
static inline const char *
__attribute__ ((unused))
_dl_hwcap_string (int idx)
{
return GLRO(dl_powerpc_cap_flags)[idx - _DL_HWCAP_FIRST];
}
static inline const char *
__attribute__ ((unused))
_dl_platform_string (int idx)
{
return GLRO(dl_powerpc_platforms)[idx - _DL_FIRST_PLATFORM];
}
static inline int
__attribute__ ((unused))
_dl_string_hwcap (const char *str)
{
for (int i = _DL_HWCAP_FIRST; i < _DL_HWCAP_COUNT; ++i)
if (strcmp (str, _dl_hwcap_string (i)) == 0)
return i;
return -1;
}
static inline int
__attribute__ ((unused, always_inline))
_dl_string_platform (const char *str)
{
if (str == NULL)
return -1;
if (strncmp (str, GLRO(dl_powerpc_platforms)[PPC_PLATFORM_POWER4], 5) == 0)
{
int ret;
str += 5;
switch (*str)
{
case '4':
ret = _DL_FIRST_PLATFORM + PPC_PLATFORM_POWER4;
break;
case '5':
ret = _DL_FIRST_PLATFORM + PPC_PLATFORM_POWER5;
if (str[1] == '+')
{
ret = _DL_FIRST_PLATFORM + PPC_PLATFORM_POWER5_PLUS;
++str;
}
break;
case '6':
ret = _DL_FIRST_PLATFORM + PPC_PLATFORM_POWER6;
if (str[1] == 'x')
{
ret = _DL_FIRST_PLATFORM + PPC_PLATFORM_POWER6X;
++str;
}
break;
case '7':
ret = _DL_FIRST_PLATFORM + PPC_PLATFORM_POWER7;
break;
default:
return -1;
}
if (str[1] == '\0')
return ret;
}
else if (strncmp (str, GLRO(dl_powerpc_platforms)[PPC_PLATFORM_PPC970],
3) == 0)
{
if (strcmp (str + 3, GLRO(dl_powerpc_platforms)[PPC_PLATFORM_PPC970]
+ 3) == 0)
return _DL_FIRST_PLATFORM + PPC_PLATFORM_PPC970;
else if (strcmp (str + 3,
GLRO(dl_powerpc_platforms)[PPC_PLATFORM_CELL_BE] + 3)
== 0)
return _DL_FIRST_PLATFORM + PPC_PLATFORM_CELL_BE;
else if (strcmp (str + 3,
GLRO(dl_powerpc_platforms)[PPC_PLATFORM_PPCA2] + 3)
== 0)
return _DL_FIRST_PLATFORM + PPC_PLATFORM_PPCA2;
else if (strcmp (str + 3,
GLRO(dl_powerpc_platforms)[PPC_PLATFORM_PPC405] + 3)
== 0)
return _DL_FIRST_PLATFORM + PPC_PLATFORM_PPC405;
else if (strcmp (str + 3,
GLRO(dl_powerpc_platforms)[PPC_PLATFORM_PPC440] + 3)
== 0)
return _DL_FIRST_PLATFORM + PPC_PLATFORM_PPC440;
else if (strcmp (str + 3,
GLRO(dl_powerpc_platforms)[PPC_PLATFORM_PPC464] + 3)
== 0)
return _DL_FIRST_PLATFORM + PPC_PLATFORM_PPC464;
else if (strcmp (str + 3,
GLRO(dl_powerpc_platforms)[PPC_PLATFORM_PPC476] + 3)
== 0)
return _DL_FIRST_PLATFORM + PPC_PLATFORM_PPC476;
}
return -1;
}
#ifdef IS_IN_rtld
static inline int
__attribute__ ((unused))
_dl_procinfo (int word)
{
_dl_printf ("AT_HWCAP: ");
for (int i = _DL_HWCAP_FIRST; i < _DL_HWCAP_COUNT; ++i)
if (word & (1 << i))
_dl_printf (" %s", _dl_hwcap_string (i));
_dl_printf ("\n");
return 0;
}
#endif
#endif /* dl-procinfo.h */
|
