sysdeps/s390/memmove-c.c

   1 /* Fallback C version of memmove.
   2    Copyright (C) 2018-2020 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 #include <ifunc-memcpy.h>
  20
  21 #if HAVE_MEMMOVE_C
  22 # if HAVE_MEMMOVE_IFUNC
  23 /* If we use ifunc, then the memmove symbol is defined
  24    in sysdeps/s390/memmove.c and we use a different name here.
  25    Otherwise, we have to define memmove here or in
  26    sysdeps/s390/memcpy.S depending on the used default implementation.  */
  27 #  define MEMMOVE MEMMOVE_C
  28 #  if defined SHARED && IS_IN (libc)
  29 /* Define the internal symbol.  */
  30 #   undef libc_hidden_builtin_def
  31 #   define libc_hidden_builtin_def(name)                        \
  32   __hidden_ver1 (__memmove_c, __GI_memmove, __memmove_c);
  33 #  endif
  34 # endif
  35
  36 # include <string/memmove.c>
  37 #endif