can I profile on basic block level for nios

I'm having problems with acrobat, but I found that by opening a doc in reader, searching (not find - use search) the doc directory for profile, you find some reference that says for the version of Cygwin we used for Nios I, profiling was not supported. But again, Acrobat was acting up and killing itself before i got to the other links, so that might not be the whole story. But it's a place to start.