[Haskell-cafe] Re: Haskell on ARM (was Re: ANN: Topkata)

Braden Shepherdson Braden.Shepherdson at gmail.com
Wed Jan 28 11:15:44 EST 2009

Dan Mead wrote:
> has there been any movement on this topic? i'm also interested in 
> haskell on arm
> do you guys thing telling ghc to emit C and then compiling that for arm 
> is a better route than
> getting direct compilation to work?

If you look on the GHC-on-ARM page[1], you'll find my attempts to 
bootstrap GHC 6.6 (the last version where cross-compiling GHC actually 
worked) to ARM.

The only success I had was in using jhc (not GHC) to generate portable 
C, which cross-compiled and ran fine (on my Nokia N810). GHC's C 
wouldn't compile out of the box, and I'm not sure what libraries or 
other hackery is required to make it do so.

Details of the failed cross-compilation and success with jhc are on the 
wiki page[1].

I'd love to have this working, but I have no time at all this term.

Braden Shepherdson

[1] http://hackage.haskell.org/trac/ghc/wiki/ArmLinuxGhc

> -dan
> On Fri, Jul 25, 2008 at 3:55 AM, Simon Marlow <marlowsd at gmail.com 
> <mailto:marlowsd at gmail.com>> wrote:
>     Joe Buehler wrote:
>         Simon Marlow wrote:
>             For the registerised port, you really need a native code
>             generator (the mangler is on death row, yay).  At a rough
>             guess, I'd say porting the NCG would take a couple of weeks
>             or so for someone unfamiliar with the code. Hopefully we'll
>             improve that when we refactor the NCG as part of the backend
>             overhaul.
>         Is there any documentation on the NCG?  I ported 6.6 to HPUX 11
>         some time ago
>         and looked at the NCG but didn't do it for PA-RISC because it
>         was going to take too
>         much time to understand.  I was leaning towards the approach of
>         trying to translate
>         the code generator for another processor into PA-RISC.
>     There's some old documentation, some of it is still relevant but
>     probably much of it is out of date now:
>     http://darcs.haskell.org/ghc/docs/comm/the-beast/ncg.html
>     the best doc is the code, I'm afraid (but it has lot of illuminating
>     comments and you can get a long way with cut-and-paste).
>     Cheers,
>            Simon
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