patches/glibc/2.7/230-powerpc-private_futex.patch
author "Yann E. MORIN" <yann.morin.1998@free.fr>
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>
     1 2008-04-28  Hiroki Kaminaga  <kaminaga@sm.sony.co.jp>
     2 
     3 	[BZ 6740]
     4 	nptl/sysdeps/powerpc/tcb-offsets.sym (PRIVATE_FUTEX_OFFSET):
     5 	Guard sym definition with #ifndef __ASSUME_PRIVATE_FUTEX.
     6 
     7 --- a/nptl/sysdeps/powerpc/tcb-offsets.sym
     8 +++ b/nptl/sysdeps/powerpc/tcb-offsets.sym
     9 @@ -15,4 +15,6 @@
    10  PID				thread_offsetof (pid)
    11  TID				thread_offsetof (tid)
    12  POINTER_GUARD			(offsetof (tcbhead_t, pointer_guard) - TLS_TCB_OFFSET - sizeof (tcbhead_t))
    13 +#ifndef __ASSUME_PRIVATE_FUTEX
    14  PRIVATE_FUTEX_OFFSET		thread_offsetof (header.private_futex)
    15 +#endif