Re: ghci on arm (Was: haskell-cmdargs: FTBFS on many arches: Template Haskell bracket illegal in a stage-1 compiler)

[Karel Gardas <karel.gardas@centrum.cz>]

Hi All,

first of all I need to give credit where it should be. Majority of code 
to support GHCi on ARM was written by Ben Gamari (who is cced on this 
email). I've provided just testing and a bug fix or two. Anyway, the 
support is still not there, which means some debugging and fixes are 
needed. Keep in mind, ARM does have a load of ELF reallocations to take 
care about...

Konstantinos, if you are ELF man :-), then please have a look at Ben's 
GHC tree which is a little bit out-dated in comparison with GHC 7.4, but 
from the ARM functionality it's up-to-date. It's here: 
https://github.com/bgamari/ghc/commits/arm-ghci/ -- i.e. 
https://github.com/bgamari/ghc/ and the branch name is arm-ghci.

You will need to deal with rts/Linker.c and related (very few) files. 
You don't need to be Haskell hacker at all, this all is about pure C 
anyway...

Any patches highly welcome here!

Thanks!
Karel

On 01/ 4/12 07:38 PM, Joachim Breitner wrote:
> Hi,
>
> Am Mittwoch, den 04.01.2012, 19:49 +0200 schrieb Konstantinos
> Margaritis:
> > On 4 January 2012 19:41, Clint Adams<clint@debian.org>  wrote:
> > > Hi Neil,
> > >
> > > It looks like cmdargs started using TH between 0.8 and 0.9, but does
> > > not express the appropriate dependency.  Could you please adjust
> > > the .cabal file?
> > >
> > > DHG: should we introduce a cmdargs0.8 package for the non-TH arches?
> > > I think we're also going to have the same problem with aeson soon.
> > >
> > > Konstantinos: are you interested in getting TH and GHCi to work on
> > > armhf?
> >
> > I'd definitely be interested as there are ~15 packages build-depending
> > on ghci on armhf, what's needed? Mind you I'm not knowledgeable about
> > haskell, I'm just fixing bugs while porting packages to armhf, but if
> > I can help with something, I'd be glad to do it.
>
> I don’t think there is anything armhf-special to do; first it needs to
> be supported on regular armel. Karel has been working on that
> previously.
>
> I’m not sure what exactly needs to be done, but AFAIK it requires work
> on the linker. If Konstantinos happens to know stuff about that, maybe
> you and Karel can cooperate?
>
> Greetings,
> Joachim