sysdeps/arm/armv7/multiarch/ifunc-memcpy.h

   1 /* Common definition for memcpy resolver.
   2    Copyright (C) 2017-2022 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 #ifdef __SOFTFP__
  20 __typeof (REDIRECT_NAME) OPTIMIZE (arm) attribute_hidden;
  21 #endif
  22 __typeof (REDIRECT_NAME) OPTIMIZE (vfp) attribute_hidden;
  23 __typeof (REDIRECT_NAME) OPTIMIZE (neon) attribute_hidden;
  24
  25 static inline void *
  26 IFUNC_SELECTOR (int hwcap)
  27 {
  28   if (hwcap & HWCAP_ARM_NEON)
  29     return OPTIMIZE (neon);
  30 #ifdef __SOFTFP__
  31   if (hwcap & HWCAP_ARM_VFP)
  32     return OPTIMIZE (vfp);
  33   return OPTIMIZE (arm);
  34 #else
  35   return OPTIMIZE (vfp);
  36 #endif
  37 }