How to set start and end of profiling on Valgrind

To create the profile dump on valgrind, one does:

valgrind --tool=callgrind program [program_options]

[from http://ift.tt/1jZaR6z ]

I would like to set the start and end of the profiling within some source files. For example

start main.cpp:30 stop main.cpp:44

I think of this having profiled using this technique on Android. Is this possible on Valgrind ?