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>
yann@2149
     1
diff -durN gcc-4.4.5.orig/gcc/config/sparc/freebsd.h gcc-4.4.5/gcc/config/sparc/freebsd.h
yann@2149
     2
--- gcc-4.4.5.orig/gcc/config/sparc/freebsd.h	2007-08-02 12:49:31.000000000 +0200
yann@2149
     3
+++ gcc-4.4.5/gcc/config/sparc/freebsd.h	2010-10-09 23:00:03.000000000 +0200
yann@2149
     4
@@ -25,9 +25,22 @@
yann@2149
     5
 /* FreeBSD needs the platform name (sparc64) defined.
yann@2149
     6
    Emacs needs to know if the arch is 64 or 32-bits.  */
yann@2149
     7
 
yann@2149
     8
-#undef  CPP_CPU64_DEFAULT_SPEC
yann@2149
     9
-#define CPP_CPU64_DEFAULT_SPEC \
yann@2149
    10
-  "-D__sparc64__ -D__sparc_v9__ -D__sparcv9 -D__arch64__"
yann@2149
    11
+#undef  FBSD_TARGET_CPU_CPP_BUILTINS
yann@2149
    12
+#define FBSD_TARGET_CPU_CPP_BUILTINS()                  \
yann@2149
    13
+  do                                                    \
yann@2149
    14
+    {                                                   \
yann@2149
    15
+      if (TARGET_ARCH64)                                \
yann@2149
    16
+        {                                               \
yann@2149
    17
+          builtin_define ("__sparc64__");               \
yann@2149
    18
+          builtin_define ("__sparc_v9__");              \
yann@2149
    19
+          builtin_define ("__sparcv9");                 \
yann@2149
    20
+        }                                               \
yann@2149
    21
+      else                                              \
yann@2149
    22
+        builtin_define ("__sparc");                     \
yann@2149
    23
+      builtin_define ("__sparc__");                     \
yann@2149
    24
+    }                                                   \
yann@2149
    25
+  while (0)
yann@2149
    26
+
yann@2149
    27
 
yann@2149
    28
 #define LINK_SPEC "%(link_arch)						\
yann@2149
    29
   %{!mno-relax:%{!r:-relax}}						\