blob: 7efe064fe8c5a3535a90dc9d6908e082a21c66ba (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
|
/* Multiple versions of memcpy. PowerPC64 version.
Copyright (C) 2013-2019 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/>. */
/* Define multiple versions only for the definition in lib and for
DSO. In static binaries we need memcpy before the initialization
happened. */
#if defined SHARED && IS_IN (libc)
/* Redefine memcpy so that the compiler won't complain about the type
mismatch with the IFUNC selector in strong_alias, below. */
# undef memcpy
# define memcpy __redirect_memcpy
# include <string.h>
# include "init-arch.h"
extern __typeof (__redirect_memcpy) __libc_memcpy;
extern __typeof (__redirect_memcpy) __memcpy_ppc attribute_hidden;
extern __typeof (__redirect_memcpy) __memcpy_power4 attribute_hidden;
extern __typeof (__redirect_memcpy) __memcpy_cell attribute_hidden;
extern __typeof (__redirect_memcpy) __memcpy_power6 attribute_hidden;
extern __typeof (__redirect_memcpy) __memcpy_a2 attribute_hidden;
extern __typeof (__redirect_memcpy) __memcpy_power7 attribute_hidden;
extern __typeof (__redirect_memcpy) __memcpy_power8_cached attribute_hidden;
libc_ifunc (__libc_memcpy,
((hwcap2 & PPC_FEATURE2_ARCH_2_07) && use_cached_memopt)
? __memcpy_power8_cached :
(hwcap & PPC_FEATURE_HAS_VSX)
? __memcpy_power7 :
(hwcap & PPC_FEATURE_ARCH_2_06)
? __memcpy_a2 :
(hwcap & PPC_FEATURE_ARCH_2_05)
? __memcpy_power6 :
(hwcap & PPC_FEATURE_CELL_BE)
? __memcpy_cell :
(hwcap & PPC_FEATURE_POWER4)
? __memcpy_power4
: __memcpy_ppc);
#undef memcpy
strong_alias (__libc_memcpy, memcpy);
libc_hidden_ver (__libc_memcpy, memcpy);
#endif
|
