1 /* Multiple versions of memmove.
2 Copyright (C) 2016-2022 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
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.
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.
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/>. */
19 #include <ifunc-memcpy.h>
21 #if HAVE_MEMMOVE_IFUNC
22 /* If we don't use ifunc, an alias is defined for memmove
23 in sysdeps/s390/memmove-c.c or sysdeps/s390/memcpy.S
24 depending on the used default implementation. */
26 # define memmove __redirect_memmove
28 # include <ifunc-resolve.h>
32 extern __typeof (__redirect_memmove
) MEMMOVE_C attribute_hidden
;
36 extern __typeof (__redirect_memmove
) MEMMOVE_Z13 attribute_hidden
;
39 # if HAVE_MEMMOVE_ARCH13
40 extern __typeof (__redirect_memmove
) MEMMOVE_ARCH13 attribute_hidden
;
43 s390_libc_ifunc_expr (__redirect_memmove
, memmove
,
45 s390_libc_ifunc_expr_stfle_init ();
46 (HAVE_MEMMOVE_ARCH13
&& (hwcap
& HWCAP_S390_VXRS_EXT2
)
47 && S390_IS_ARCH13_MIE3 (stfle_bits
))
49 : (HAVE_MEMMOVE_Z13
&& (hwcap
& HWCAP_S390_VX
))