1/* Default memmem implementation for S/390.
2 Copyright (C) 2018-2022 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 <ifunc-memmem.h>
20
21#if HAVE_MEMMEM_C
22# if HAVE_MEMMEM_IFUNC
23# include <string.h>
24
25# ifndef _LIBC
26# define memmem MEMMEM_C
27# else
28# define __memmem MEMMEM_C
29# endif
30
31# if defined SHARED && IS_IN (libc)
32# undef libc_hidden_def
33# define libc_hidden_def(name) \
34 strong_alias (__memmem_c, __memmem_c_1); \
35 __hidden_ver1 (__memmem_c, __GI___memmem, __memmem_c);
36
37# undef libc_hidden_weak
38# define libc_hidden_weak(name) \
39 __hidden_ver1 (__memmem_c_1, __GI_memmem, __memmem_c_1) __attribute__((weak));
40# endif
41
42# undef weak_alias
43# define weak_alias(a, b)
44# endif
45
46# include <string/memmem.c>
47#endif
48

source code of glibc/sysdeps/s390/memmem-c.c