Re: powerpc/sparc problems

[Vladimir 'phcoder' Serbinenko <phcoder@gmail.com>]

rubisher wrote:
> Felix Zielcke wrote:
>> Am Montag, den 12.10.2009, 10:55 +0200 schrieb Felix Zielcke:
>>
>>> And also anyone who has access to a powerpc machine (and experience)?
>>
>> Oh and I forgot to mention, that the powerpc version doestn't even build
>> now with 1.97~beta4:
>>
>> _restgpr_31_x in boot is not defined
>>
>> Full build log is here:
>> https://buildd.debian.org/fetch.cgi?&pkg=grub2&ver=1.97~beta4-1&arch=powerpc&stamp=1254771207&file=log
>>
>>
>>
> Hello Felix,
>
> I now reach to install grub for my debian unstable installation on my
> ibm p5 lpar (the unstable 1.97~beta3-1) but unfortunately failed to
> boot because failed to find a symbol (sorry I forget to take note of it).
> I so jump to svn (release 2641 and today 2642); no luck always this
> same error:
>
> _restgpr_31_x in boot is not defined
From the name and what we discussed with Felix on IRC I guess this
symbol is a counterpart of MIPS' __gnu_local_gp which is used in
handling GOT relocations which allow usage of a single instruction to
load 32-bit address instead of usual 2 but require linker to generate
additional table. You can look into kern/mips/dl.c of my mips branch for
details. Similar approach can be used for powerpc. I suppose it would be
a good idea to put this code to kern/got.c instead of kern/<arch>. But
such a change just before release is too big.
Since it correspond to a recent change in gcc behaviour perhaps an old
behaviour can be restored with an option.
>
> I so re-try to build the deb pkg 1.97~beta3-1; too bad again this same
> error???
>
> Could it be so a gcc issue (debian build of 1.97~beta3-1 was with
> gcc-4.4 4.4.1-3; here I rebuild with gcc-4.4 4.4.1-6 and even most
> recent 4.4.2-1?)
>
> I so try to come back to gcc 4.3 and this time it build fine (not yet
> tested if this one boot, sorry).
>
> Any idea?
>
> Tia,
>     j.
>
> ps: I also tried to test bean123 git branch (grab this Oct 19) but
> this failed to build early to compile normal/main.c (gcc didn't find
> some references to some grub_... struct and fnct)
>
>
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-- 
Regards
Vladimir 'phcoder' Serbinenko
Personal git repository: http://repo.or.cz/w/grub2/phcoder.git