sysdeps/aarch64/multiarch/init-arch.h

   1 /* Define INIT_ARCH so that midr is initialized before use by IFUNCs.
   2    This file is part of the GNU C Library.
   3    Copyright (C) 2017-2018 Free Software Foundation, Inc.
   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 #include <ldsodefs.h>
  20
  21 #define INIT_ARCH()                                                           \
  22   uint64_t __attribute__((unused)) midr =                                     \
  23     GLRO(dl_aarch64_cpu_features).midr_el1;                                   \
  24   unsigned __attribute__((unused)) zva_size =                                 \
  25     GLRO(dl_aarch64_cpu_features).zva_size;