1 | /* Linux/i386 version of processor capability information handling macros. |
---|
2 | Copyright (C) 1998, 1999, 2000, 2001 Free Software Foundation, Inc. |
---|
3 | This file is part of the GNU C Library. |
---|
4 | Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998. |
---|
5 | |
---|
6 | The GNU C Library is free software; you can redistribute it and/or |
---|
7 | modify it under the terms of the GNU Lesser General Public |
---|
8 | License as published by the Free Software Foundation; either |
---|
9 | version 2.1 of the License, or (at your option) any later version. |
---|
10 | |
---|
11 | The GNU C Library is distributed in the hope that it will be useful, |
---|
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
---|
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
---|
14 | Lesser General Public License for more details. |
---|
15 | |
---|
16 | You should have received a copy of the GNU Lesser General Public |
---|
17 | License along with the GNU C Library; if not, write to the Free |
---|
18 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
---|
19 | 02111-1307 USA. */ |
---|
20 | |
---|
21 | #ifndef _DL_PROCINFO_H |
---|
22 | #define _DL_PROCINFO_H 1 |
---|
23 | |
---|
24 | #include <ldsodefs.h> |
---|
25 | |
---|
26 | /* If anything should be added here check whether the size of each string |
---|
27 | is still ok with the given array size. */ |
---|
28 | extern const char _dl_x86_cap_flags[][7]; |
---|
29 | #define _DL_HWCAP_COUNT 32 |
---|
30 | |
---|
31 | extern const char _dl_x86_platforms[][5]; |
---|
32 | #define _DL_PLATFORMS_COUNT 4 |
---|
33 | |
---|
34 | /* Start at 48 to reserve some space. */ |
---|
35 | #define _DL_FIRST_PLATFORM 48 |
---|
36 | /* Mask to filter out platforms. */ |
---|
37 | #define _DL_HWCAP_PLATFORM (7ULL << _DL_FIRST_PLATFORM) |
---|
38 | |
---|
39 | |
---|
40 | static inline int |
---|
41 | __attribute__ ((__unused__)) |
---|
42 | _dl_procinfo (int word) |
---|
43 | { |
---|
44 | /* This table should match the information from arch/i386/kernel/setup.c |
---|
45 | in the kernel sources. */ |
---|
46 | int i; |
---|
47 | |
---|
48 | _dl_printf ("AT_HWCAP: "); |
---|
49 | |
---|
50 | for (i = 0; i < _DL_HWCAP_COUNT; ++i) |
---|
51 | if (word & (1 << i)) |
---|
52 | _dl_printf (" %s", _dl_x86_cap_flags[i]); |
---|
53 | |
---|
54 | _dl_printf ("\n"); |
---|
55 | |
---|
56 | return 0; |
---|
57 | } |
---|
58 | |
---|
59 | static inline const char * |
---|
60 | __attribute__ ((__unused__)) |
---|
61 | _dl_hwcap_string (int idx) |
---|
62 | { |
---|
63 | return _dl_x86_cap_flags[idx]; |
---|
64 | }; |
---|
65 | |
---|
66 | static inline const char * |
---|
67 | __attribute__ ((__unused__)) |
---|
68 | _dl_platform_string (int idx) |
---|
69 | { |
---|
70 | return _dl_x86_platforms [idx - _DL_FIRST_PLATFORM]; |
---|
71 | }; |
---|
72 | |
---|
73 | enum |
---|
74 | { |
---|
75 | HWCAP_I386_FPU = 1 << 0, |
---|
76 | HWCAP_I386_VME = 1 << 1, |
---|
77 | HWCAP_I386_DE = 1 << 2, |
---|
78 | HWCAP_I386_PSE = 1 << 3, |
---|
79 | HWCAP_I386_TSC = 1 << 4, |
---|
80 | HWCAP_I386_MSR = 1 << 5, |
---|
81 | HWCAP_I386_PAE = 1 << 6, |
---|
82 | HWCAP_I386_MCE = 1 << 7, |
---|
83 | HWCAP_I386_CX8 = 1 << 8, |
---|
84 | HWCAP_I386_APIC = 1 << 9, |
---|
85 | HWCAP_I386_SEP = 1 << 11, |
---|
86 | HWCAP_I386_MTRR = 1 << 12, |
---|
87 | HWCAP_I386_PGE = 1 << 13, |
---|
88 | HWCAP_I386_MCA = 1 << 14, |
---|
89 | HWCAP_I386_CMOV = 1 << 15, |
---|
90 | HWCAP_I386_FCMOV = 1 << 16, |
---|
91 | HWCAP_I386_MMX = 1 << 23, |
---|
92 | HWCAP_I386_OSFXSR = 1 << 24, |
---|
93 | HWCAP_I386_XMM = 1 << 25, |
---|
94 | HWCAP_I386_XMM2 = 1 << 26, |
---|
95 | HWCAP_I386_AMD3D = 1 << 31, |
---|
96 | |
---|
97 | /* XXX Which others to add here? */ |
---|
98 | HWCAP_IMPORTANT = (HWCAP_I386_MMX) |
---|
99 | |
---|
100 | }; |
---|
101 | |
---|
102 | static inline int |
---|
103 | __attribute__ ((__unused__)) |
---|
104 | _dl_string_hwcap (const char *str) |
---|
105 | { |
---|
106 | int i; |
---|
107 | |
---|
108 | for (i = 0; i < _DL_HWCAP_COUNT; i++) |
---|
109 | { |
---|
110 | if (strcmp (str, _dl_x86_cap_flags[i]) == 0) |
---|
111 | return i; |
---|
112 | } |
---|
113 | return -1; |
---|
114 | }; |
---|
115 | |
---|
116 | |
---|
117 | static inline int |
---|
118 | __attribute__ ((__unused__)) |
---|
119 | _dl_string_platform (const char *str) |
---|
120 | { |
---|
121 | int i; |
---|
122 | |
---|
123 | if (str != NULL) |
---|
124 | for (i = 0; i < _DL_PLATFORMS_COUNT; ++i) |
---|
125 | { |
---|
126 | if (strcmp (str, _dl_x86_platforms[i]) == 0) |
---|
127 | return _DL_FIRST_PLATFORM + i; |
---|
128 | } |
---|
129 | return -1; |
---|
130 | }; |
---|
131 | |
---|
132 | #endif /* dl-procinfo.h */ |
---|