Has something about -prof -auto-all changed in GHC 7?

I've been trying to use a library compiled with profiling in 7.0.1rc1, where I'm compiling the library with -auto-all, but I'm getting output when I run an app linked against the library that contains almost no information from inside the library: basically just a single cost centre from the app itself shows up, and almost nothing inside the library. I've verified via "cabal build -v" that the library is indeed being built with -prof -auto-all.