Is best practice to confine these to a particular folder (like you get with -fprofile-dir)? Is there a switch to do that for gcov data?
Due to limitations of my patch -fprofile-dir (or passing arguments to -fprofile-* is unsupported). All it allows you can do is pass "--coverage", "-fprofile-generate" or "-fprofile-use" to winegcc without arguments. It started as a hack to enable gcov and evolved into a hack to enable PGO and gcov.
Peter