Re: multithreaded programs on arm-linux

Daniel Jacobowitz
2005-11-03T15:59:33Z

On Thu, Nov 03, 2005 at 04:51:07PM +0100, Frank Meerkoetter wrote:
> Quoting Daniel Jacobowitz <drow@false.org>:
> [...]
> >>I'm not using the gdbserver but rather running the gdb on
> >>the target. The reason is that i didn't managed to
> >>remote debug a program which is dynamically linked.
> >>
> >>I assume gdb is linked against libthread_db.so
> >
> >GDB uses dlopen to get at libthread_db.so. Does it do that? Does
> >initialization fail?
>
> thread_db_load() which contains the dlopen() call is successfull run.
> The end of thread_db_load() is reached and 1 is returned.
>
> >You'll need to attach a debugger to gdb and look at thread_db_init.
> >The first call will generally fail but a later one should succeed.
>
> frank@linux:~/gdb/gdb-6.3> global thread_db_init
> gdb/gdbserver/thread-db.c
> gdb/thread-db.c
>
> thread_db_init of the gdbserver could fail but not thread_db_init
> of the gdb.

Try thread_db_new_objfile.

--
Daniel Jacobowitz
CodeSourcery, LLC