patches/glibc/ports-2.12.1/440-alpha-cache-shape.patch
author |
"Yann E. MORIN" <yann.morin.1998@free.fr> |
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Sat Jan 04 01:02:57 2014 +0100 (2014-01-04) |
changeset 3271 |
c65dc9b98841 |
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@2437
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older verisons of glibc would build dl-sysdep as shared-only and dl-support as
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yann@2437
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static-only. alpha hooks in a cache variable via dl-auxv.h. newer versions of
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yann@2437
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glibc build dl-sysdep as both shared and static which means we now have symbol
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yann@2437
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duplication for static builds with dl-sysdep and dl-support. since dl-sysdep
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yann@2437
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is both shared/static, there is no point in hooking dl-support anymore, so we
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yann@2437
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can punt it.
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diff -durN glibc-2.12.1.orig/glibc-ports-2.12.1/sysdeps/unix/sysv/linux/alpha/dl-support.c glibc-2.12.1/glibc-ports-2.12.1/sysdeps/unix/sysv/linux/alpha/dl-support.c
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yann@2437
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--- glibc-2.12.1.orig/glibc-ports-2.12.1/sysdeps/unix/sysv/linux/alpha/dl-support.c 2009-05-16 10:36:20.000000000 +0200
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yann@2437
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+++ glibc-2.12.1/glibc-ports-2.12.1/sysdeps/unix/sysv/linux/alpha/dl-support.c 2009-11-13 00:50:53.000000000 +0100
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@@ -1,2 +1,1 @@
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-#include "dl-auxv.h"
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#include <elf/dl-support.c>
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