Cannot see Elmer symbols under DDT

Hi to all

I am trying to debug the following mpmd task:

 ddt mpirun -np 2 myofsolver : -np 2 ElmerSolver_mpi case.sif

There is no problem displaying the source code for the openfoam execulable myofsolver but I don't need to see the source code for executable ElmerSolver_mpi. I am only interested in the dynamically loaded libraries (dll) ( e.g. myelmer.so ) ( .so since I am working under Linux)  whose name myelmer is contained in script file case.sif.  ElmerSolver_mpi reads case.sif to load the required dll's among other things. 

Kindest regards