patches/glibc/2.6/140-i386-preferred-stack-boundary.patch
| author |
"Yann E. MORIN" <yann.morin.1998@free.fr> |
|
Sat Jan 04 01:02:57 2014 +0100 (2014-01-04) |
| changeset 3271 |
c65dc9b98841 |
| parent 744 |
4bf8448536d5
|
| permissions |
-rw-r--r-- |
cc/gcc: diable libsanitizer without NPTL
gcc-4.8 comes with a new library to sanitise memory access:
- heap-, stack-, and global-buffer overflow, use-after-free
- data-races between threads
This library requires some _np parts of the API, which are not
implemented in the (old) LinuxThreads, which is still available
in uClibc.
Since NPTL requires a i486 or above, i386 are stuck with using LT,
which precludes building the libsanitizer.
Disable libsanitizer, a bit like libatomic is.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Niels Penneman <niels@penneman.org>
|
yann@402
|
1 |
(C) 2007 Yann E. MORIN <yann.morin.1998@anciens.enib.fr>
|
|
yann@402
|
2 |
License: LGPL v2.1
|
|
yann@402
|
3 |
|
|
yann@402
|
4 |
Shut off a stupid warning: preffered-stack-boundary must be between 4 ad 12,
|
|
yann@402
|
5 |
and 2 is not.
|
|
yann@402
|
6 |
|
|
yann@402
|
7 |
diff -dur glibc-2.5.orig/sysdeps/i386/Makefile glibc-2.5/sysdeps/i386/Makefile
|
|
yann@402
|
8 |
--- glibc-2.5.orig/sysdeps/i386/Makefile 2005-03-06 01:18:16.000000000 +0100
|
|
yann@402
|
9 |
+++ glibc-2.5/sysdeps/i386/Makefile 2007-05-27 17:49:37.000000000 +0200
|
|
yann@402
|
10 |
@@ -36,7 +36,7 @@
|
|
yann@402
|
11 |
ifeq ($(subdir),csu)
|
|
yann@402
|
12 |
sysdep-CFLAGS += -mpreferred-stack-boundary=4
|
|
yann@402
|
13 |
else
|
|
yann@402
|
14 |
-sysdep-CFLAGS += -mpreferred-stack-boundary=2
|
|
yann@402
|
15 |
+sysdep-CFLAGS += -mpreferred-stack-boundary=4
|
|
yann@402
|
16 |
# Likewise, any function which calls user callbacks
|
|
yann@402
|
17 |
uses-callbacks += -mpreferred-stack-boundary=4
|
|
yann@402
|
18 |
# Likewise, any stack alignment tests
|