http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52583
--- Comment #6 from Ian Lance Taylor <ian at airs dot com> 2012-03-16 03:18:46 UTC --- Thanks for looking at this. The first step is to run readelf --debug=line FILE to make sure that the line number information is recorded correctly. Which of course it probably is. If you have trouble parsing the --debug=line output, try --debug=decodedline. The place that Go is reading that information is libgo/go/debug/dwarf/line.go. Most likely something is going wrong in the way that it gathers the information, but I don't know what.