glibc/sysdeps/x86_64/multiarch/memrchr.c
Adhemerval Zanella 22999b2f0f string: Add libc_hidden_proto for memrchr
Although static linker can optimize it to local call, it follows the
internal scheme to provide hidden proto and definitions.

Reviewed-by: Carlos Eduardo Seo <carlos.seo@linaro.org>
2023-02-08 17:13:58 -03:00

33 lines
1.2 KiB
C

/* Multiple versions of memrchr
All versions must be listed in ifunc-impl-list.c.
Copyright (C) 2017-2023 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
/* Define multiple versions only for the definition in libc. */
#if IS_IN (libc)
# define memrchr __redirect_memrchr
# include <string.h>
# undef memrchr
# define SYMBOL_NAME memrchr
# include "ifunc-avx2.h"
libc_ifunc_redirected (__redirect_memrchr, __memrchr, IFUNC_SELECTOR ());
libc_hidden_def (__memrchr)
weak_alias (__memrchr, memrchr)
#endif