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patches/glibc/2.7/180-gcc-4.3-sysinclude-path.patch
author "Yann E. MORIN" <yann.morin.1998@free.fr>
Sat Jan 04 01:02:57 2014 +0100 (2014-01-04)
changeset 3271 c65dc9b98841
parent 747 d3e603e7c17c
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 Patch pointed to by Ryan ARNOLD on the libc-help ML.

     2 See: http://sourceware.org/ml/libc-help/2008-06/msg00063.html

     3 

     4 Forwarded to crosstool-NG by Ioannis E. VENETIS:

     5 See: http://sourceware.org/ml/libc-help/2008-06/msg00063.html

     6 

     7 GCC 4.3 changed the location of some of the header files.  I don't

     8 understand why you'd be getting these errors while building GCC since

     9 it provides them.

    10 

    11 With regard to GLIBC, Roland checked in some changes so that the GLIBC

    12 build system could find the new locations of the GCC provided header

    13 files.

    14 

    15 diff -durN glibc-2.7.orig/configure.in glibc-2.7/configure.in

    16 --- glibc-2.7.orig/configure.in	2007-06-08 05:16:36.000000000 +0200

    17 +++ glibc-2.7/configure.in	2008-06-24 18:38:46.000000000 +0200

    18 @@ -911,8 +911,12 @@

    19  # header directory and add that to the list.  NOTE: Only does the right

    20  # thing on a system that doesn't need fixincludes.  (Not presently a problem.)

    21  if test -n "$sysheaders"; then

    22 -  ccheaders=`$CC -print-file-name=include`

    23 -  SYSINCLUDES="-nostdinc -isystem $ccheaders \

    24 +  SYSINCLUDES=-nostdinc

    25 +  for d in include include-fixed; do

    26 +    i=`$CC -print-file-name="$d"` && test "x$i" != x && test "x$i" != "x$d" &&

    27 +    SYSINCLUDES="$SYSINCLUDES -isystem $i"

    28 +  done

    29 +  SYSINCLUDES="$SYSINCLUDES \

    30  -isystem `echo $sysheaders | sed 's/:/ -isystem /g'`"

    31    if test -n "$CXX"; then

    32      cxxversion=`$CXX -dumpversion 2>&AS_MESSAGE_LOG_FD` &&

    33 diff -durN glibc-2.7.orig/configure glibc-2.7/configure

    34 --- glibc-2.7.orig/configure	2008-06-24 18:35:34.000000000 +0200

    35 +++ glibc-2.7/configure	2008-06-24 18:38:46.000000000 +0200

    36 @@ -5062,8 +5062,12 @@

    37  # header directory and add that to the list.  NOTE: Only does the right

    38  # thing on a system that doesn't need fixincludes.  (Not presently a problem.)

    39  if test -n "$sysheaders"; then

    40 -  ccheaders=`$CC -print-file-name=include`

    41 -  SYSINCLUDES="-nostdinc -isystem $ccheaders \

    42 +  SYSINCLUDES=-nostdinc

    43 +  for d in include include-fixed; do

    44 +    i=`$CC -print-file-name="$d"` && test "x$i" != "x$d" &&

    45 +    SYSINCLUDES="$SYSINCLUDES -isystem $i"

    46 +  done

    47 +  SYSINCLUDES="$SYSINCLUDES \

    48  -isystem `echo $sysheaders | sed 's/:/ -isystem /g'`"

    49    if test -n "$CXX"; then

    50      cxxversion=`$CXX -dumpversion 2>&5` &&
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