Is it possible to get specific file / line number for function calls?

[brendandebeasi]

I am trying to trace down where the functions being traced are being called from, specifically which line number. Is that something that can be enabled or is that outside the scope of this particular tool's purpose?

[AlexNDRmac]

For this purpose you can use phpspy as sampling profiler to get stacktraces with line numbers.
But, you need manually convert from text stacktrace representation to collapsed stack and than to flamegraph :)

[NoiseByNorthwest]

It is in the scope, but currently not available. This feature is a part of larger refactor I'm currently working on.