Re: [gentoo-mips] multilib problems on mips64 profiles

["Anthony G. Basile" <blueness@gentoo.org>]

On 09/13/14 05:47, Markos Chandras wrote:
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> Hi,
>
> Here is some weirdness with eg mips64/n32 multilib profile when trying
> a world update
>
> [ebuild     U  ] sys-devel/libtool-2.4.2-r1:2 [2.4.2:2]
> USE="-static-libs {-test} -vanilla" ABI_MIPS="(n32%*) o32%* -n64%" 0 kB
>
> As you can see n32 and o32 are enabled but n64 is not. Obviously this
> is not full mips64 multilib. This is probably due the portage profile
> stacking/inheritance problems on mips64, where the mips64/multilib
> profiles inherit the default o32 one. Michal (multilib CC'd) can
> provide more information on what exactly goes wrong since he
> understands the problem better than me. Michal also said that on
> amd64, the multilib profiles defaults to 64-bit only. I believe this
> contradicts with what someone expects from MIPS64 where all three ABIs
> need to be present *by default* unless you override the ABI_MIPS
> variable in make.conf. Correct?
>
> - -- 
> Regards,
> Markos Chandras
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Yes I know the issue but have not gotten around to fixing it and won't 
anytime soon since I' struggling with real life (like getting the 
electric company to fix my power!)

I don't agree that we want all three abi's by default on all binaries.  
What we want is the three abis for the toolchain, and the option to turn 
on/off the other abis besides the default abi which should be on.  
Ideally this should be

     ABI_MIPS="(n32%*) -o32%* -n64%"

Needs to be done is

1) add -abi_mips_o32 to use.force in 
/usr/portage/profiles/arch/mips/mips64/n32 and similarly for the other 
profiles.  This allows one to turn off o32, otherwise its forced on.

2) add USE="${USE} -abi_mips_o32" to make.default.  This turns it off by 
default, but the user can turn it back on.

You should do this for all the mips64/multilibs and mips64el's.

-- 
Anthony G. Basile, Ph.D.
Gentoo Linux Developer [Hardened]
E-Mail    : blueness@gentoo.org
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