misc/sys/auxv.h

   1 /* Access to the auxiliary vector.
   2    Copyright (C) 2012-2022 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    <https://www.gnu.org/licenses/>.  */
  18
  19 #ifndef _SYS_AUXV_H
  20 #define _SYS_AUXV_H 1
  21
  22 #include <elf.h>
  23 #include <sys/cdefs.h>
  24 #include <bits/hwcap.h>
  25
  26 __BEGIN_DECLS
  27
  28 /* Return the value associated with an Elf*_auxv_t type from the auxv list
  29    passed to the program on startup.  If TYPE was not present in the auxv
  30    list, returns zero and sets errno to ENOENT.  */
  31 extern unsigned long int getauxval (unsigned long int __type)
  32   __THROW;
  33
  34 __END_DECLS
  35
  36 #endif /* sys/auxv.h */