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/* Copy memory block and return pointer to following byte.
For Intel 80x86, x>=6.
This file is part of the GNU C Library.
Copyright (C) 1998,1999,2000,2002,2004,2005 Free Software Foundation, Inc.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
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"
#include "bp-sym.h"
#include "bp-asm.h"
#define PARMS LINKAGE /* no space for saved regs */
#define RTN PARMS
#define DEST RTN+RTN_SIZE
#define SRC DEST+PTR_SIZE
#define LEN SRC+PTR_SIZE
.text
#if defined PIC && !defined NOT_IN_libc
ENTRY_CHK (__mempcpy_chk)
movl 12(%esp), %eax
cmpl %eax, 16(%esp)
jb HIDDEN_JUMPTARGET (__chk_fail)
END_CHK (__mempcpy_chk)
#endif
ENTRY (BP_SYM (__mempcpy))
ENTER
movl LEN(%esp), %ecx
movl %edi, %eax
cfi_register (edi, eax)
movl DEST(%esp), %edi
CHECK_BOUNDS_BOTH_WIDE (%edi, DEST(%esp), %ecx)
movl %esi, %edx
cfi_register (esi, edx)
movl SRC(%esp), %esi
CHECK_BOUNDS_BOTH_WIDE (%esi, SRC(%esp), %ecx)
cld
shrl $1, %ecx
jnc 1f
movsb
1: shrl $1, %ecx
jnc 2f
movsw
2: rep
movsl
xchgl %edi, %eax
cfi_restore (edi)
movl %edx, %esi
cfi_restore (esi)
RETURN_BOUNDED_POINTER (DEST(%esp))
LEAVE
RET_PTR
END (BP_SYM (__mempcpy))
libc_hidden_def (BP_SYM (__mempcpy))
weak_alias (BP_SYM (__mempcpy), BP_SYM (mempcpy))
libc_hidden_builtin_def (mempcpy)
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