sysdeps/powerpc/powerpc64/multiarch/strncmp.c

   1 /* Multiple versions of strncmp.
   2    Copyright (C) 2013 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 /* Define multiple versions only for definition in libc.  */
  20 #if defined SHARED && !defined NOT_IN_libc
  21 # include <string.h>
  22 # include <shlib-compat.h>
  23 # include "init-arch.h"
  24
  25 extern __typeof (strncmp) __strncmp_ppc attribute_hidden;
  26 extern __typeof (strncmp) __strncmp_power4 attribute_hidden;
  27 extern __typeof (strncmp) __strncmp_power7 attribute_hidden;
  28
  29 /* Avoid DWARF definition DIE on ifunc symbol so that GDB can handle
  30    ifunc symbol properly.  */
  31 libc_ifunc (strncmp,
  32             (hwcap & PPC_FEATURE_HAS_VSX)
  33             ? __strncmp_power7 :
  34               (hwcap & PPC_FEATURE_POWER4)
  35                 ? __strncmp_power4
  36             : __strncmp_ppc);
  37 #endif