mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-09 23:00:07 +00:00
50 lines
1.6 KiB
C
50 lines
1.6 KiB
C
/* Multiple versions of memmem.
|
|
Copyright (C) 2018-2024 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-memmem.h>
|
|
|
|
#if HAVE_MEMMEM_IFUNC
|
|
# define memmem __redirect_memmem
|
|
# define __memmem __redirect___memmem
|
|
# include <string.h>
|
|
# include <ifunc-resolve.h>
|
|
# undef memmem
|
|
# undef __memmem
|
|
|
|
# if HAVE_MEMMEM_C
|
|
extern __typeof (__redirect_memmem) MEMMEM_C attribute_hidden;
|
|
# endif
|
|
|
|
# if HAVE_MEMMEM_Z13
|
|
extern __typeof (__redirect_memmem) MEMMEM_Z13 attribute_hidden;
|
|
# endif
|
|
|
|
# if HAVE_MEMMEM_ARCH13
|
|
extern __typeof (__redirect_memmem) MEMMEM_ARCH13 attribute_hidden;
|
|
# endif
|
|
|
|
s390_libc_ifunc_expr (__redirect_memmem, __memmem,
|
|
(HAVE_MEMMEM_ARCH13 && (hwcap & HWCAP_S390_VXRS_EXT2))
|
|
? MEMMEM_ARCH13
|
|
: (HAVE_MEMMEM_Z13 && (hwcap & HWCAP_S390_VX))
|
|
? MEMMEM_Z13
|
|
: MEMMEM_DEFAULT
|
|
)
|
|
weak_alias (__memmem, memmem)
|
|
#endif
|