glibc/sysdeps/aarch64/multiarch/strlen.c
Wilco Dijkstra 9fd3409842 AArch64: Cleanup ifuncs
Cleanup ifuncs.  Remove uses of libc_hidden_builtin_def, use ENTRY rather than
ENTRY_ALIGN, remove unnecessary defines and conditional compilation.  Rename
strlen_mte to strlen_generic.  Remove rtld-memset.

Reviewed-by: Szabolcs Nagy <szabolcs.nagy@arm.com>
2023-11-01 13:41:59 +00:00

39 lines
1.4 KiB
C

/* Multiple versions of strlen. AARCH64 version.
Copyright (C) 2018-2023 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)
/* Redefine strlen so that the compiler won't complain about the type
mismatch with the IFUNC selector in strong_alias, below. */
# undef strlen
# define strlen __redirect_strlen
# include <string.h>
# include <init-arch.h>
extern __typeof (__redirect_strlen) __strlen;
extern __typeof (__redirect_strlen) __strlen_generic attribute_hidden;
extern __typeof (__redirect_strlen) __strlen_asimd attribute_hidden;
libc_ifunc (__strlen, (mte ? __strlen_generic : __strlen_asimd));
# undef strlen
strong_alias (__strlen, strlen);
#endif