Re: profiling and backtracing blues

On 13/03/2012 21:25, Ranjit Jhala wrote:

Hi all,

I'm trying to use the nifty backtracing mechanism in GHC 74. AFAICT, this requires everything be built with profiling on), but as a consequence, I hit this:

"You can't call hscCompileCoreExpr in a profiled compiler"

Any hints on whether there are work-arounds?

Can you give more details about what you're trying to do? Are you using the GHC API in some way? I'm afraid there's something of a deep limitation in that the interpreter that is used by GHCi and Template Haskell doesn't work with profiling: http://hackage.haskell.org/trac/ghc/ticket/3360 We think it is quite a lot of work to fix this. Cheers, Simon