On 20 March 2006 19:47, Duncan Coutts wrote:
> On Thu, 2006-03-16 at 17:19 +0000, Duncan Coutts wrote:
>
>>>> We have some arch-specific defaults for wether to enable certain
>>>> ghc features. I think these would be suitable defaults for
>>>> everyone:
>>>>
>>>> alpha, hppa and ppc64 should use GhcWithInterpreter=NO
>>>
>>> This corresponds to the current default except for ppc64. Does
>>> GHCi not work on ppc64? (I don't see any ppc64-specific stuff in
>>> rts/Linker.c, so maybe).
>>
>> I can double check. The ppc64 ABI is somewhat different to that of
>> ppc.
>
> We tested this again and ghci does not work "out of the box" on ppc64
> with ghc-6.4.1. We think this is related to a "TOC overflow" problem
> that we get with the ppc64 ABI.
>
> The ppc64 ABI has this limited-size TOC table for referencing global
> symbols. The gnu binutils has some support for making more TOCs when
> they overflow so most of the time one can ignore the TOC size
> restriction. Unfortunately this doesn't seem to work when all the
> little .o files in a package are linked together into one GHCi-style
> .o file. Since the GHCi .o files are unusable, GHCi itself becomes
> unusable.
Thanks, I've added a ticket (#731)
Cheers,
Simon
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