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patches/gcc/4.4.5/170-sparc64-bsd.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/sparc/freebsd.h gcc-4.4.5/gcc/config/sparc/freebsd.h

     2 --- gcc-4.4.5.orig/gcc/config/sparc/freebsd.h	2007-08-02 12:49:31.000000000 +0200

     3 +++ gcc-4.4.5/gcc/config/sparc/freebsd.h	2010-10-09 23:00:03.000000000 +0200

     4 @@ -25,9 +25,22 @@

     5  /* FreeBSD needs the platform name (sparc64) defined.

     6     Emacs needs to know if the arch is 64 or 32-bits.  */

     7  

     8 -#undef  CPP_CPU64_DEFAULT_SPEC

     9 -#define CPP_CPU64_DEFAULT_SPEC \

    10 -  "-D__sparc64__ -D__sparc_v9__ -D__sparcv9 -D__arch64__"

    11 +#undef  FBSD_TARGET_CPU_CPP_BUILTINS

    12 +#define FBSD_TARGET_CPU_CPP_BUILTINS()                  \

    13 +  do                                                    \

    14 +    {                                                   \

    15 +      if (TARGET_ARCH64)                                \

    16 +        {                                               \

    17 +          builtin_define ("__sparc64__");               \

    18 +          builtin_define ("__sparc_v9__");              \

    19 +          builtin_define ("__sparcv9");                 \

    20 +        }                                               \

    21 +      else                                              \

    22 +        builtin_define ("__sparc");                     \

    23 +      builtin_define ("__sparc__");                     \

    24 +    }                                                   \

    25 +  while (0)

    26 +

    27  

    28  #define LINK_SPEC "%(link_arch)						\

    29    %{!mno-relax:%{!r:-relax}}						\
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