How to extract own symbol table

I'm looking at the package debug/gosym which has a type gosym.Table, allegedly a symbol table of a Go executable. Unfortunately, I don't see any ways of extracting the sysmbol table from the running program (Go reflection is lacking, and I need more info than it can provide, specifically, the names of exported symbols).

If this isn't possible generally, but can be done on Linux / for ELF binaries, that's an option too.