1  /* Multiple versions of wcscpy.
       2     All versions must be listed in ifunc-impl-list.c.
       3     Copyright (C) 2017-2023 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  /* Define multiple versions only for the definition in libc.  */
      21  #if IS_IN (libc)
      22  # define wcscpy __redirect_wcscpy
      23  # include <wchar.h>
      24  # undef wcscpy
      25  
      26  # define SYMBOL_NAME wcscpy
      27  #include <init-arch.h>
      28  
      29  extern __typeof (REDIRECT_NAME) OPTIMIZE (ia32) attribute_hidden;
      30  extern __typeof (REDIRECT_NAME) OPTIMIZE (ssse3) attribute_hidden;
      31  
      32  static inline void *
      33  IFUNC_SELECTOR (void)
      34  {
      35    const struct cpu_features* cpu_features = __get_cpu_features ();
      36  
      37    if (CPU_FEATURE_USABLE_P (cpu_features, SSSE3))
      38      return OPTIMIZE (ssse3);
      39  
      40    return OPTIMIZE (ia32);
      41  }
      42  
      43  libc_ifunc_redirected (__redirect_wcscpy, wcscpy, IFUNC_SELECTOR ());
      44  #endif