blob: 4cf084ed3feabaf50d8253886b516e92227b7cd7 (
plain)
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
|
/* Checking memcpy for i386.
Copyright (C) 2004-2019 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
<http://www.gnu.org/licenses/>. */
#ifndef SHARED
# include <sysdep.h>
# include "asm-syntax.h"
/* For libc.so this is defined in memcpy.S.
For libc.a, this is a separate source to avoid
memcpy bringing in __chk_fail and all routines
it calls. */
.text
ENTRY (__memcpy_chk)
movl 12(%esp), %eax
cmpl %eax, 16(%esp)
jb __chk_fail
jmp memcpy
END (__memcpy_chk)
#endif
|
