I examined the unresolved addresses generated by using Intel Compiler. I got a minor # of samples which were unresolved (In my case~20 of ~8000 samples)
All ~20 samples were in the PLT (Procedure Linking Table)of the binary. Vtune does not associate samples in the PLT with any particular function.
I get the same ~20 Samples on the gcc binary - exceptbecause gcc didn't do as aggressive inlining by default - it is 1 of 10 functions listed in VTune. (And therefore is not as obvious that these unresolved addresses exist)