sysdeps/unix/sysv/linux/aarch64/dl-procinfo.h

   1 /* Processor capability information handling macros - aarch64 version.
   2    Copyright (C) 2017-2019 Free Software Foundation, Inc.
   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
  16    License along with the GNU C Library; if not, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #ifndef _DL_PROCINFO_H
  20 #define _DL_PROCINFO_H  1
  21
  22 #include <sys/auxv.h>
  23 #include <unistd.h>
  24 #include <ldsodefs.h>
  25 #include <sysdep.h>
  26
  27 /* We cannot provide a general printing function.  */
  28 #define _dl_procinfo(type, word) -1
  29
  30 /* No additional library search paths.  */
  31 #define HWCAP_IMPORTANT HWCAP_ATOMICS
  32
  33 static inline const char *
  34 __attribute__ ((unused))
  35 _dl_hwcap_string (int idx)
  36 {
  37   return (unsigned)idx < _DL_HWCAP_COUNT ? GLRO(dl_aarch64_cap_flags)[idx] : "";
  38 };
  39
  40 static inline int
  41 __attribute__ ((unused))
  42 _dl_string_hwcap (const char *str)
  43 {
  44   for (int i = 0; i < _DL_HWCAP_COUNT; i++)
  45     {
  46       if (strcmp (str, _dl_hwcap_string (i)) == 0)
  47         return i;
  48     }
  49   return -1;
  50 };
  51
  52 /* There're no platforms to filter out.  */
  53 #define _DL_HWCAP_PLATFORM 0
  54
  55 #define _dl_string_platform(str) (-1)
  56
  57 #endif /* dl-procinfo.h */