mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-29 05:51:10 +00:00
350d8d1366
New algorithm read the first aligned address and mask off the unwanted bytes (this strategy is similar to arch-specific implementations used on powerpc, sparc, and sh). The loop now read word-aligned address and check using the has_zero macro. Checked on x86_64-linux-gnu, i686-linux-gnu, powerpc-linux-gnu, and powercp64-linux-gnu by removing the arch-specific assembly implementation and disabling multi-arch (it covers both LE and BE for 64 and 32 bits). Co-authored-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Noah Goldstein <goldstein.w.n@gmail.com>
35 lines
1.1 KiB
C
35 lines
1.1 KiB
C
/* Default strlen implementation for S/390.
|
|
Copyright (C) 2015-2023 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/>. */
|
|
|
|
#include <ifunc-strlen.h>
|
|
|
|
#if HAVE_STRLEN_C
|
|
# if HAVE_STRLEN_IFUNC
|
|
# define STRLEN STRLEN_C
|
|
# endif
|
|
|
|
# include <string/strlen.c>
|
|
|
|
# if HAVE_STRLEN_IFUNC
|
|
# if defined SHARED && IS_IN (libc)
|
|
__hidden_ver1 (__strlen_c, __GI_strlen, __strlen_c);
|
|
# endif
|
|
# endif
|
|
|
|
#endif
|