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patches/gcc/4.3.4/320-alpha-signal_h.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 Original patch from: ../4.3.2/320-alpha-signal_h.patch

     2 

     3 -= BEGIN original header =-

     4 -= END original header =-

     5 

     6 diff -durN gcc-4.3.3.orig/gcc/config/alpha/linux-unwind.h gcc-4.3.3/gcc/config/alpha/linux-unwind.h

     7 --- gcc-4.3.3.orig/gcc/config/alpha/linux-unwind.h	2006-10-26 21:31:09.000000000 +0200

     8 +++ gcc-4.3.3/gcc/config/alpha/linux-unwind.h	2009-01-27 22:25:49.000000000 +0100

     9 @@ -29,6 +29,9 @@

    10  /* Do code reading to identify a signal frame, and set the frame

    11     state data appropriately.  See unwind-dw2.c for the structs.  */

    12  

    13 +/* Don't use this if inhibit_libc is set

    14 +   The build for this target will fail trying to include missing headers */

    15 +#ifndef inhibit_libc

    16  #include <signal.h>

    17  #include <sys/ucontext.h>

    18  

    19 @@ -80,3 +83,4 @@

    20    fs->retaddr_column = 64;

    21    return _URC_NO_REASON;

    22  }

    23 +#endif /* inhibit_libc */
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