This is the mail archive of the
gdb@sources.redhat.com
mailing list for the GDB project.
Re: thread debugging problem
> On Fri, Sep 12, 2003 at 09:15:01AM +0200, Andreas Westin wrote:
> > > > Hi,
> > > >
> > > > I'm trying to debug a multithreaded program in linux, but I'm
> not
> > > able
> > > > to get any kind of thread info while running the program in
> gdb.
> > > > I've tested with gdb 5.3, 5.3.91 and cvs from yesterday (10th)
> not
> > > any
> > > > of them works.
> > > > info thread shows nothing and the program stops with signal 32
> when a
> > >
> > > > new thread starts.
> > > >
> > >
> > > Hmmm, this usually indicates that there is no thread support
> > > available. Maybe the version of the Kernel you are using has some
> > > missing pieces. How about glibc-kernheaders?
> > >
> > > Do you get a message at gdb startu saying something about using
> > > libthread_db?
> > >
> > > > I'm using Trustix 2.0 with gcc 3.3 and glibc 2.3.2.
> > > >
> > >
> > > Not sure what Trustix is.
> > > But those versions seem roughly ok.
> > >
> > > Can you post a gdb session?
> > >
> >
> > This is the kernel installed.
> > root@labb ~# uname -a
> > Linux labb.mobilecity.nu 2.4.21-13trfirewall #1 Thu Jul 10 15:57:32
> CEST 2003
> > i686 unknown unknown GNU/Linux
> >
> > I have installed the glibc-devel rpms so the headers should be
> included.
> >
> > Trustix is small firewall/gateway dist, http://www.trustix.net/
> >
> > A sample gdb session, I do not see any message about libthread_db
> though.
>
> Does trustix even ship /lib/libthread_db.so.1? If not, thread
> debugging won't work.
Yes, i have libthread_db_so.1 in /lib
/Andreas