sysdeps/i386/i686/multiarch/bzero-ia32.S

   1 /* bzero optimized for i686.
   2    Copyright (C) 2017-2021 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 <sysdep.h>
  20
  21 #if IS_IN (libc)
  22 # define __bzero __bzero_ia32
  23
  24 # ifdef SHARED
  25 #  undef libc_hidden_builtin_def
  26 /* IFUNC doesn't work with the hidden functions in shared library since
  27    they will be called without setting up EBX needed for PLT which is
  28    used by IFUNC.  */
  29 #  define libc_hidden_builtin_def(name) \
  30         .globl __GI___bzero; __GI___bzero = __bzero
  31 # endif
  32
  33 # undef weak_alias
  34 # define weak_alias(original, alias)
  35
  36 # include <sysdeps/i386/i686/bzero.S>
  37 #endif