mirror of
https://sourceware.org/git/glibc.git
synced 2025-11-03 20:53:13 +03:00
56 lines
2.1 KiB
C
56 lines
2.1 KiB
C
/* Multiple versions of memcpy. PowerPC64 version.
|
|
Copyright (C) 2013-2017 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
|
|
<http://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;
|
|
|
|
libc_ifunc (__libc_memcpy,
|
|
(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
|