| /* Optimized memmove for x86-64. |
| Copyright (C) 2016-2018 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/>. */ |
| |
| #include <sysdep.h> |
| |
| #define VEC_SIZE 16 |
| #define VEC(i) xmm##i |
| #define PREFETCHNT prefetchnta |
| #define VMOVNT movntdq |
| /* Use movups and movaps for smaller code sizes. */ |
| #define VMOVU movups |
| #define VMOVA movaps |
| |
| #define SECTION(p) p |
| |
| #ifdef USE_MULTIARCH |
| # if !IS_IN (libc) |
| # define MEMCPY_SYMBOL(p,s) memcpy |
| # endif |
| #else |
| # if defined SHARED && IS_IN (libc) |
| # define MEMCPY_SYMBOL(p,s) __memcpy |
| # else |
| # define MEMCPY_SYMBOL(p,s) memcpy |
| # endif |
| #endif |
| #if !defined USE_MULTIARCH || !IS_IN (libc) |
| # define MEMPCPY_SYMBOL(p,s) __mempcpy |
| #endif |
| #ifndef MEMMOVE_SYMBOL |
| # define MEMMOVE_CHK_SYMBOL(p,s) p |
| # define MEMMOVE_SYMBOL(p,s) memmove |
| #endif |
| |
| #include "multiarch/memmove-vec-unaligned-erms.S" |
| |
| #ifndef USE_MULTIARCH |
| libc_hidden_builtin_def (memmove) |
| # if defined SHARED && IS_IN (libc) |
| strong_alias (memmove, __memcpy) |
| libc_hidden_ver (memmove, memcpy) |
| # endif |
| libc_hidden_def (__mempcpy) |
| weak_alias (__mempcpy, mempcpy) |
| libc_hidden_builtin_def (mempcpy) |
| |
| # if defined SHARED && IS_IN (libc) |
| # undef memcpy |
| # include <shlib-compat.h> |
| versioned_symbol (libc, __memcpy, memcpy, GLIBC_2_14); |
| |
| # if SHLIB_COMPAT (libc, GLIBC_2_2_5, GLIBC_2_14) |
| compat_symbol (libc, memmove, memcpy, GLIBC_2_2_5); |
| # endif |
| # endif |
| #endif |
