patches/gcc/4.4.5/210-arm-unbreak-armv4t.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 diff -durN gcc-4.4.5.orig/gcc/config/arm/linux-eabi.h gcc-4.4.5/gcc/config/arm/linux-eabi.h
     2 --- gcc-4.4.5.orig/gcc/config/arm/linux-eabi.h	2007-11-08 14:44:09.000000000 +0100
     3 +++ gcc-4.4.5/gcc/config/arm/linux-eabi.h	2010-10-09 23:01:59.000000000 +0200
     4 @@ -44,7 +44,7 @@
     5     The ARM10TDMI core is the default for armv5t, so set
     6     SUBTARGET_CPU_DEFAULT to achieve this.  */
     7  #undef  SUBTARGET_CPU_DEFAULT
     8 -#define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm10tdmi
     9 +#define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm9tdmi
    10  
    11  /* TARGET_BIG_ENDIAN_DEFAULT is set in
    12     config.gcc for big endian configurations.  */