Re: [gcc-4.3.1][c++] weird segfault with -O3 in constructor of a global object

[Maik Beckmann <beckmann dot maik at googlemail dot com>]

Am Donnerstag 26 Juni 2008 12:26:26 schrieb Tom Browder:
> On Thu, Jun 26, 2008 at 4:53 AM, Maik Beckmann
> <beckmann.maik@googlemail.com> wrote:
> ...
>
> > All I wait for filing a bug report is someone out there saying that
> > vanilla gcc-4.3.1 on his/her debian/ubuntu/redhat/fedora x86-64 (aka.
> > amd64) box causes the same segfault with -O3 on the code I posted.
>
> While you're waiting, try reinstalling gcc-4.3.1 by following EXACTLY
> the installation instructions found here:
>
>   http://gcc.gnu.org/install/configure.html
>
> Do NOT use a script, and make sure your build directory is NOT in or
> under the gcc source tree.
>
> -Tom

{{{
$ ls
PKGBUILD                       gcc-fortran-4.3.1.tar.bz2
PKGBUILD~                      gcc-g++-4.3.1.tar.bz2
gcc-4.3.1                      gcc-java-4.3.1.tar.bz2
gcc-4.3.1-1-x86_64.pkg.tar.gz  gcc-objc-4.3.1.tar.bz2
gcc-4.3.1_bak                  gcc_pure64.patch
gcc-core-4.3.1.tar.bz2         libstdc++-man-20080118.tar.bz2
$ rm gcc-4.3.1 -rf
$ tar xjf gcc-core-4.3.1.tar.bz2 
$ tar xjf gcc-g++-4.3.1.tar.bz2 
$ mkdir objdir
$ cd objdir/
$ ../gcc-4.3.1/configure --prefix=/opt --enable-languages=c++ --disable-multilib
... 
$ make -j3
...
$ sudo make install
...
$ cd ~/workspace/tester/gcc43/
$ export LD_LIBRARY_PATH=/opt/lib:/opt/lib64/ 
$ /opt/bin/g++ -O3 test.cpp -o test
$ ./test 
Speicherzugriffsfehler
$ /opt/bin/g++ -static -O3 test.cpp -o test
$ ./test 
Speicherzugriffsfehler
}}}
where "Speicherzugriffsfehler" means "segmentation fault".


I've read objdir being a subdirectory if the gcc source tree isn't support, 
like you said.  I will file a bug report to arch linux on this.


Thanks,
  -- Maik