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

   1 /* Linux/ARM version of processor capability information handling macros.
   2    Copyright (C) 2001-2014 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 (unsigned int type, unsigned long int word)
  35 {
  36   int i;
  37
  38   /* Fallback to unknown output mechanism.  */
  39   if (type == AT_HWCAP2)
  40     return -1;
  41
  42   _dl_printf ("AT_HWCAP:   ");
  43
  44   for (i = 0; i < _DL_HWCAP_COUNT; ++i)
  45     if (word & (1 << i))
  46       _dl_printf (" %s", GLRO(dl_arm_cap_flags)[i]);
  47
  48   _dl_printf ("\n");
  49
  50   return 0;
  51 }
  52
  53 static inline const char *
  54 __attribute__ ((unused))
  55 _dl_hwcap_string (int idx)
  56 {
  57   return GLRO(dl_arm_cap_flags)[idx];
  58 };
  59
  60 #define HWCAP_IMPORTANT         (HWCAP_ARM_VFP | HWCAP_ARM_NEON)
  61
  62 static inline int
  63 __attribute__ ((unused))
  64 _dl_string_hwcap (const char *str)
  65 {
  66   int i;
  67
  68   for (i = 0; i < _DL_HWCAP_COUNT; i++)
  69     {
  70       if (strcmp (str, GLRO(dl_arm_cap_flags)[i]) == 0)
  71         return i;
  72     }
  73   return -1;
  74 };
  75
  76 #define _dl_string_platform(str) (-1)
  77
  78 #endif /* dl-procinfo.h */