Julia goes through LLVM, which has good DWARF support (and, additionally, until recently, Julia hosted rr's CI, so Julia directly cares about rr). Whereas AFAIU

Julia goes through LLVM, which has good DWARF support (and, additionally, until recently, Julia hosted rr's CI, so Julia directly cares about rr). Whereas AFAIU Go does its codegen fully from scratch, without much regard for gdb/DWARF quality.