Why is mixing profiling and dynamic linking unsupported?

Hello all, GHC does not support combining -prof and -dynamic. Various places note that these are incompatible, but I have never managed to find a rationale for this incompatibility. I am sure there a good reasons exists, but I am not sure what it is. Does anyone know the reason? And, even better, is the reason written down somewhere? I’d love to understand this better. Thanks, Alexis