mirror of git://sourceware.org/git/glibc.git
50 lines
1.8 KiB
C
50 lines
1.8 KiB
C
/* Multiple versions of strstr.
|
|
All versions must be listed in ifunc-impl-list.c.
|
|
Copyright (C) 2012-2025 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/>. */
|
|
|
|
/* Redefine strstr so that the compiler won't complain about the type
|
|
mismatch with the IFUNC selector in strong_alias, below. */
|
|
#undef strstr
|
|
#define strstr __redirect_strstr
|
|
#include <string.h>
|
|
#undef strstr
|
|
|
|
#define STRSTR __strstr_generic
|
|
#ifdef SHARED
|
|
# undef libc_hidden_builtin_def
|
|
# define libc_hidden_builtin_def(name) \
|
|
__hidden_ver1 (__strstr_generic, __GI_strstr, __strstr_generic);
|
|
#endif
|
|
|
|
#include "string/strstr.c"
|
|
|
|
extern __typeof (__redirect_strstr) __strstr_sse2_unaligned attribute_hidden;
|
|
extern __typeof (__redirect_strstr) __strstr_generic attribute_hidden;
|
|
|
|
#include "init-arch.h"
|
|
|
|
/* Avoid DWARF definition DIE on ifunc symbol so that GDB can handle
|
|
ifunc symbol properly. */
|
|
extern __typeof (__redirect_strstr) __libc_strstr;
|
|
libc_ifunc (__libc_strstr,
|
|
HAS_ARCH_FEATURE (Fast_Unaligned_Load)
|
|
? __strstr_sse2_unaligned
|
|
: __strstr_generic)
|
|
#undef strstr
|
|
strong_alias (__libc_strstr, strstr)
|