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/* memset implementation for the dynamic linker. This is separate from the
libc implementation to avoid writing to SSE registers.
Copyright (C) 2013-2015 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>
#include "asm-syntax.h"
.text
/* void *memset (void *dest, char c, size_t count)
dest => %rdi
c => %rsi
count => %rdx */
ENTRY (memset)
mov %rdx, %rcx
movzbl %sil, %eax
mov %rdi, %rdx
rep stosb
mov %rdx, %rax
ret
END (memset)
libc_hidden_builtin_def (memset)
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