summaryrefslogtreecommitdiff
path: root/sysdeps/x86_64/memset_chk.S
diff options
context:
space:
mode:
authorJakub Jelinek <jakub@redhat.com>2004-10-18 09:58:59 +0000
committerJakub Jelinek <jakub@redhat.com>2004-10-18 09:58:59 +0000
commit56c4396a6e1568a5511ac43873fa3c9e1ebfa8d1 (patch)
treef2d0f6e1aaf9794668b53c6456fcacbbacd63805 /sysdeps/x86_64/memset_chk.S
parent4ce1a5c9712b4d7616058e708630c33744f983f6 (diff)
Updated to fedora-glibc-20041018T0940
Diffstat (limited to 'sysdeps/x86_64/memset_chk.S')
-rw-r--r--sysdeps/x86_64/memset_chk.S34
1 files changed, 34 insertions, 0 deletions
diff --git a/sysdeps/x86_64/memset_chk.S b/sysdeps/x86_64/memset_chk.S
new file mode 100644
index 0000000000..e62cb58cc0
--- /dev/null
+++ b/sysdeps/x86_64/memset_chk.S
@@ -0,0 +1,34 @@
+/* Checking memset for x86-64.
+ Copyright (C) 2004 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <sysdep.h>
+#include "asm-syntax.h"
+
+#ifndef PIC
+ /* For libc.so this is defined in memset.S.
+ For libc.a, this is a separate source to avoid
+ memset bringing in __chk_fail and all routines
+ it calls. */
+ .text
+ENTRY (__memset_chk)
+ cmpq %rdx, %rcx
+ jb __chk_fail
+ jmp memset
+END (__memset_chk)
+#endif