sysdeps/s390/multiarch/ifunc-resolve.h

   1 /* IFUNC resolver function for CPU specific functions.
   2    32/64 bit S/390 version.
   3    Copyright (C) 2015-2024 Free Software Foundation, Inc.
   4    This file is part of the GNU C Library.
   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    <https://www.gnu.org/licenses/>.  */
  19
  20 #include <unistd.h>
  21 #include <dl-procinfo.h>
  22 #include <cpu-features.h>
  23
  24 #define s390_libc_ifunc_expr_stfle_init()                               \
  25   const unsigned long long *stfle_bits = features->stfle_bits;
  26
  27 #define s390_libc_ifunc_expr_init()                                     \
  28   const struct cpu_features *features = &GLRO(dl_s390_cpu_features);    \
  29   /* The hwcap from kernel is passed as argument, but we                \
  30      explicitly use the hwcaps from cpu-features struct.   */           \
  31   hwcap = features->hwcap;
  32
  33 #define s390_libc_ifunc_expr(TYPE_FUNC, FUNC, EXPR)             \
  34   __ifunc (TYPE_FUNC, FUNC, EXPR, unsigned long int hwcap,      \
  35            s390_libc_ifunc_expr_init);