]>
Commit | Line | Data |
---|---|---|
857a1627 | 1 | /* Processor capability information handling macros. PowerPC version. |
f7a9f785 | 2 | Copyright (C) 2005-2016 Free Software Foundation, Inc. |
857a1627 RM |
3 | This file is part of the GNU C Library. |
4 | ||
5 | The GNU C Library is free software; you can redistribute it and/or | |
6 | modify it under the terms of the GNU Lesser General Public | |
7 | License as published by the Free Software Foundation; either | |
8 | version 2.1 of the License, or (at your option) any later version. | |
9 | ||
10 | The GNU C Library is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | Lesser General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU Lesser General Public | |
fac0c5f2 | 16 | License along with the GNU C Library. If not, see |
59ba27a6 | 17 | <http://www.gnu.org/licenses/>. */ |
857a1627 RM |
18 | |
19 | #ifndef _DL_PROCINFO_H | |
fac0c5f2 | 20 | #define _DL_PROCINFO_H 1 |
857a1627 RM |
21 | |
22 | #include <ldsodefs.h> | |
89cd9569 | 23 | #include <sysdep.h> /* This defines the PPC_FEATURE[2]_* macros. */ |
857a1627 | 24 | |
94ec7e00 CES |
25 | /* There are 28 bits used, but they are bits 4..31. */ |
26 | #define _DL_HWCAP_FIRST 4 | |
89cd9569 RA |
27 | |
28 | /* The total number of available bits (including those prior to | |
29 | _DL_HWCAP_FIRST). Some of these bits might not be used. */ | |
30 | #define _DL_HWCAP_COUNT 64 | |
31 | ||
32 | /* Features started at bit 31 and decremented as new features were added. */ | |
33 | #define _DL_HWCAP_LAST 31 | |
34 | ||
35 | /* AT_HWCAP2 features started at bit 31 and decremented as new features were | |
36 | added. HWCAP2 feature bits start at bit 0. */ | |
37 | #define _DL_HWCAP2_LAST 31 | |
857a1627 RM |
38 | |
39 | /* These bits influence library search. */ | |
594d423a UD |
40 | #define HWCAP_IMPORTANT (PPC_FEATURE_HAS_ALTIVEC \ |
41 | + PPC_FEATURE_HAS_DFP) | |
857a1627 | 42 | |
b1f19b8e | 43 | #define _DL_PLATFORMS_COUNT 15 |
4cd3633d | 44 | |
fac0c5f2 | 45 | #define _DL_FIRST_PLATFORM 32 |
4cd3633d | 46 | /* Mask to filter out platforms. */ |
fac0c5f2 RA |
47 | #define _DL_HWCAP_PLATFORM (((1ULL << _DL_PLATFORMS_COUNT) - 1) \ |
48 | << _DL_FIRST_PLATFORM) | |
857a1627 | 49 | |
594d423a UD |
50 | /* Platform bits (relative to _DL_FIRST_PLATFORM). */ |
51 | #define PPC_PLATFORM_POWER4 0 | |
52 | #define PPC_PLATFORM_PPC970 1 | |
53 | #define PPC_PLATFORM_POWER5 2 | |
54 | #define PPC_PLATFORM_POWER5_PLUS 3 | |
55 | #define PPC_PLATFORM_POWER6 4 | |
56 | #define PPC_PLATFORM_CELL_BE 5 | |
57 | #define PPC_PLATFORM_POWER6X 6 | |
1642331d | 58 | #define PPC_PLATFORM_POWER7 7 |
d0b9e94f | 59 | #define PPC_PLATFORM_PPCA2 8 |
fac0c5f2 RA |
60 | #define PPC_PLATFORM_PPC405 9 |
61 | #define PPC_PLATFORM_PPC440 10 | |
62 | #define PPC_PLATFORM_PPC464 11 | |
63 | #define PPC_PLATFORM_PPC476 12 | |
2f063a6e | 64 | #define PPC_PLATFORM_POWER8 13 |
b1f19b8e | 65 | #define PPC_PLATFORM_POWER9 14 |
594d423a | 66 | |
857a1627 RM |
67 | static inline const char * |
68 | __attribute__ ((unused)) | |
69 | _dl_hwcap_string (int idx) | |
70 | { | |
71 | return GLRO(dl_powerpc_cap_flags)[idx - _DL_HWCAP_FIRST]; | |
4cd3633d UD |
72 | } |
73 | ||
74 | static inline const char * | |
75 | __attribute__ ((unused)) | |
76 | _dl_platform_string (int idx) | |
77 | { | |
78 | return GLRO(dl_powerpc_platforms)[idx - _DL_FIRST_PLATFORM]; | |
79 | } | |
857a1627 RM |
80 | |
81 | static inline int | |
82 | __attribute__ ((unused)) | |
83 | _dl_string_hwcap (const char *str) | |
84 | { | |
85 | for (int i = _DL_HWCAP_FIRST; i < _DL_HWCAP_COUNT; ++i) | |
86 | if (strcmp (str, _dl_hwcap_string (i)) == 0) | |
87 | return i; | |
88 | return -1; | |
4cd3633d UD |
89 | } |
90 | ||
91 | static inline int | |
92 | __attribute__ ((unused, always_inline)) | |
93 | _dl_string_platform (const char *str) | |
94 | { | |
95 | if (str == NULL) | |
96 | return -1; | |
97 | ||
594d423a | 98 | if (strncmp (str, GLRO(dl_powerpc_platforms)[PPC_PLATFORM_POWER4], 5) == 0) |
4cd3633d UD |
99 | { |
100 | int ret; | |
101 | str += 5; | |
102 | switch (*str) | |
103 | { | |
104 | case '4': | |
594d423a | 105 | ret = _DL_FIRST_PLATFORM + PPC_PLATFORM_POWER4; |
4cd3633d UD |
106 | break; |
107 | case '5': | |
594d423a | 108 | ret = _DL_FIRST_PLATFORM + PPC_PLATFORM_POWER5; |
4cd3633d | 109 | if (str[1] == '+') |
594d423a UD |
110 | { |
111 | ret = _DL_FIRST_PLATFORM + PPC_PLATFORM_POWER5_PLUS; | |
112 | ++str; | |
113 | } | |
4cd3633d UD |
114 | break; |
115 | case '6': | |
594d423a UD |
116 | ret = _DL_FIRST_PLATFORM + PPC_PLATFORM_POWER6; |
117 | if (str[1] == 'x') | |
118 | { | |
119 | ret = _DL_FIRST_PLATFORM + PPC_PLATFORM_POWER6X; | |
120 | ++str; | |
121 | } | |
4cd3633d | 122 | break; |
1642331d UD |
123 | case '7': |
124 | ret = _DL_FIRST_PLATFORM + PPC_PLATFORM_POWER7; | |
125 | break; | |
2f063a6e RA |
126 | case '8': |
127 | ret = _DL_FIRST_PLATFORM + PPC_PLATFORM_POWER8; | |
128 | break; | |
b1f19b8e CES |
129 | case '9': |
130 | ret = _DL_FIRST_PLATFORM + PPC_PLATFORM_POWER9; | |
131 | break; | |
4cd3633d UD |
132 | default: |
133 | return -1; | |
134 | } | |
135 | if (str[1] == '\0') | |
fac0c5f2 | 136 | return ret; |
4cd3633d | 137 | } |
594d423a UD |
138 | else if (strncmp (str, GLRO(dl_powerpc_platforms)[PPC_PLATFORM_PPC970], |
139 | 3) == 0) | |
4cd3633d | 140 | { |
594d423a UD |
141 | if (strcmp (str + 3, GLRO(dl_powerpc_platforms)[PPC_PLATFORM_PPC970] |
142 | + 3) == 0) | |
143 | return _DL_FIRST_PLATFORM + PPC_PLATFORM_PPC970; | |
144 | else if (strcmp (str + 3, | |
145 | GLRO(dl_powerpc_platforms)[PPC_PLATFORM_CELL_BE] + 3) | |
146 | == 0) | |
147 | return _DL_FIRST_PLATFORM + PPC_PLATFORM_CELL_BE; | |
d0b9e94f MB |
148 | else if (strcmp (str + 3, |
149 | GLRO(dl_powerpc_platforms)[PPC_PLATFORM_PPCA2] + 3) | |
150 | == 0) | |
151 | return _DL_FIRST_PLATFORM + PPC_PLATFORM_PPCA2; | |
fac0c5f2 RA |
152 | else if (strcmp (str + 3, |
153 | GLRO(dl_powerpc_platforms)[PPC_PLATFORM_PPC405] + 3) | |
154 | == 0) | |
155 | return _DL_FIRST_PLATFORM + PPC_PLATFORM_PPC405; | |
156 | else if (strcmp (str + 3, | |
157 | GLRO(dl_powerpc_platforms)[PPC_PLATFORM_PPC440] + 3) | |
158 | == 0) | |
159 | return _DL_FIRST_PLATFORM + PPC_PLATFORM_PPC440; | |
160 | else if (strcmp (str + 3, | |
161 | GLRO(dl_powerpc_platforms)[PPC_PLATFORM_PPC464] + 3) | |
162 | == 0) | |
163 | return _DL_FIRST_PLATFORM + PPC_PLATFORM_PPC464; | |
164 | else if (strcmp (str + 3, | |
165 | GLRO(dl_powerpc_platforms)[PPC_PLATFORM_PPC476] + 3) | |
166 | == 0) | |
167 | return _DL_FIRST_PLATFORM + PPC_PLATFORM_PPC476; | |
4cd3633d UD |
168 | } |
169 | ||
170 | return -1; | |
171 | } | |
857a1627 | 172 | |
a3848485 | 173 | #if IS_IN (rtld) |
857a1627 RM |
174 | static inline int |
175 | __attribute__ ((unused)) | |
1ae8bfe0 | 176 | _dl_procinfo (unsigned int type, unsigned long int word) |
857a1627 | 177 | { |
89cd9569 RA |
178 | switch(type) |
179 | { | |
180 | case AT_HWCAP: | |
181 | _dl_printf ("AT_HWCAP: "); | |
182 | ||
183 | for (int i = _DL_HWCAP_FIRST; i <= _DL_HWCAP_LAST; ++i) | |
184 | if (word & (1 << i)) | |
185 | _dl_printf (" %s", _dl_hwcap_string (i)); | |
186 | break; | |
187 | case AT_HWCAP2: | |
188 | { | |
189 | unsigned int offset = _DL_HWCAP_LAST + 1; | |
190 | ||
191 | _dl_printf ("AT_HWCAP2: "); | |
192 | ||
193 | /* We have to go through them all because the kernel added the | |
194 | AT_HWCAP2 features starting with the high bits. */ | |
195 | for (int i = 0; i <= _DL_HWCAP2_LAST; ++i) | |
196 | if (word & (1 << i)) | |
197 | _dl_printf (" %s", _dl_hwcap_string (offset + i)); | |
198 | break; | |
199 | } | |
200 | default: | |
201 | /* This should not happen. */ | |
202 | return -1; | |
203 | } | |
204 | _dl_printf ("\n"); | |
857a1627 RM |
205 | return 0; |
206 | } | |
207 | #endif | |
208 | ||
209 | #endif /* dl-procinfo.h */ |