The linker mapfile options seem to be fairly limited (SPRU514C p. 66). I was looking for a way to produce the map file in XML form rather than a human-readable listing, so that I can easily write a script to parse the .map file.
If there is an undocumented option to do this now, could you let me know what it is?
If there is not an option to produce the .map file in XML form, please put this on your todo list.