[OT] plot execution flows from C/C++ sources

[Joao Ferreira Gmail <joao.miguel.c.ferreira@gmail.com>]

Hello all,

[  maybe some programers out there... :)  ]

I recently stared working on a project for maintenance and new
developments on an existing huge code base of C/C++ 

It's quite a challenge for newcommers.

Does anyone know of any tools that would help in ploting execution flow
diagrams from the sources ?

thx
Joao