sysdeps/unix/sysv/linux/arm/dl-procinfo.h

   1 /* Linux/ARM version of processor capability information handling macros.
   2    Copyright (C) 2001-2012 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4    Contributed by Philip Blundell <philb@gnu.org>, 2001.
   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, see
  18    <http://www.gnu.org/licenses/>.  */
  19
  20 #ifndef _DL_PROCINFO_H
  21 #define _DL_PROCINFO_H  1
  22
  23 #include <ldsodefs.h>
  24 #include <sysdep.h>
  25
  26 #define _DL_HWCAP_COUNT 19
  27
  28 /* The kernel provides platform data but it is not interesting.  */
  29 #define _DL_HWCAP_PLATFORM      0
  30
  31
  32 static inline int
  33 __attribute__ ((unused))
  34 _dl_procinfo (int word)
  35 {
  36   int i;
  37
  38   _dl_printf ("AT_HWCAP:   ");
  39
  40   for (i = 0; i < _DL_HWCAP_COUNT; ++i)
  41     if (word & (1 << i))
  42       _dl_printf (" %s", GLRO(dl_arm_cap_flags)[i]);
  43
  44   _dl_printf ("\n");
  45
  46   return 0;
  47 }
  48
  49 static inline const char *
  50 __attribute__ ((unused))
  51 _dl_hwcap_string (int idx)
  52 {
  53   return GLRO(dl_arm_cap_flags)[idx];
  54 };
  55
  56 #define HWCAP_IMPORTANT         (HWCAP_ARM_VFP | HWCAP_ARM_NEON)
  57
  58 static inline int
  59 __attribute__ ((unused))
  60 _dl_string_hwcap (const char *str)
  61 {
  62   int i;
  63
  64   for (i = 0; i < _DL_HWCAP_COUNT; i++)
  65     {
  66       if (strcmp (str, GLRO(dl_arm_cap_flags)[i]) == 0)
  67         return i;
  68     }
  69   return -1;
  70 };
  71
  72 #define _dl_string_platform(str) (-1)
  73
  74 #endif /* dl-procinfo.h */