Actually, looking at your flags again, you appear to be using link-time optimizations.  I believe that won't work with profiling (or debugging for that matter).

EDIT: Generally speaking, optimization will introduce a lot of problems with profiling and debugging.  Sometimes it's better to perform those tasks without optimization first.

For profiling to work, I believe you need debugging information as well.  Simply Fortran might automatically disable debugging when optimization is enabled, so you may have to add the

-g

flag manually to your list of compiler flags.

I wasn't aware of this behavior.  What platform are you seeing this on?  Windows?  I'll try to replicate it on my end.

Can you give some additional details?  Is your program long-running (taking a minute or two at the very least ideally)?  Do you have all optimizations disabled?