1 /* Linux/ARM version of processor capability information handling macros.
2 Copyright (C) 2001-2015 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Contributed by Philip Blundell <philb@gnu.org>, 2001.
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.
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.
16 You should have received a copy of the GNU Lesser General Public
17 License along with the GNU C Library. If not, see
18 <http://www.gnu.org/licenses/>. */
20 #ifndef _DL_PROCINFO_H
21 #define _DL_PROCINFO_H 1
26 #define _DL_HWCAP_COUNT 37
28 /* Low 22 bits are allocated in HWCAP. */
29 #define _DL_HWCAP_LAST 21
31 /* Low 5 bits are allocated in HWCAP2. */
32 #define _DL_HWCAP2_LAST 4
34 /* The kernel provides platform data but it is not interesting. */
35 #define _DL_HWCAP_PLATFORM 0
38 static inline const char *
39 __attribute__ ((unused
))
40 _dl_hwcap_string (int idx
)
42 return GLRO(dl_arm_cap_flags
)[idx
];
46 __attribute__ ((unused
))
47 _dl_procinfo (unsigned int type
, unsigned long int word
)
52 _dl_printf ("AT_HWCAP: ");
54 for (int i
= 0; i
<= _DL_HWCAP_LAST
; ++i
)
56 _dl_printf (" %s", _dl_hwcap_string (i
));
60 unsigned int offset
= _DL_HWCAP_LAST
+ 1;
62 _dl_printf ("AT_HWCAP2: ");
64 for (int i
= 0; i
<= _DL_HWCAP2_LAST
; ++i
)
66 _dl_printf (" %s", _dl_hwcap_string (offset
+ i
));
70 /* This should not happen. */
77 #define HWCAP_IMPORTANT (HWCAP_ARM_VFP | HWCAP_ARM_NEON)
80 __attribute__ ((unused
))
81 _dl_string_hwcap (const char *str
)
83 for (int i
= 0; i
< _DL_HWCAP_COUNT
; i
++)
85 if (strcmp (str
, _dl_hwcap_string (i
)) == 0)
91 #define _dl_string_platform(str) (-1)
93 #endif /* dl-procinfo.h */