1 | /* Checking memset for i386. |
2 | Copyright (C) 2004-2024 Free Software Foundation, Inc. |
3 | This file is part of the GNU C Library. |
4 | |
5 | The GNU C Library is free software; you can redistribute it and/or |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either |
8 | version 2.1 of the License, or (at your option) any later version. |
9 | |
10 | The GNU C Library is distributed in the hope that it will be useful, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | Lesser General Public License for more details. |
14 | |
15 | You should have received a copy of the GNU Lesser General Public |
16 | License along with the GNU C Library; if not, see |
17 | <https://www.gnu.org/licenses/>. */ |
18 | |
19 | #ifndef SHARED |
20 | # include <sysdep.h> |
21 | # include "asm-syntax.h" |
22 | |
23 | /* For libc.so this is defined in memset.S. For libc.a, this is a |
24 | separate source to avoid memset bringing in __chk_fail and all |
25 | routines it calls. */ |
26 | .text |
27 | ENTRY (__memset_chk) |
28 | movl 12(%esp), %eax |
29 | cmpl %eax, 16(%esp) |
30 | jb HIDDEN_JUMPTARGET (__chk_fail) |
31 | jmp JUMPTARGET (memset) |
32 | END (__memset_chk) |
33 | libc_hidden_builtin_def (__memset_chk) |
34 | #endif |
35 | |