[Buildroot] [PATCH 1/2] toolchain: add sparc64 architecture support
Thomas Petazzoni
thomas.petazzoni at free-electrons.com
Sat Aug 29 08:11:36 UTC 2015
Waldemar,
On Sat, 29 Aug 2015 09:41:04 +0200, Waldemar Brodkorb wrote:
> Yeah, the main reason providing the patch is to discover portability
> issues in software packages for this platform. I like the
> autobuilder stuff and a greater test coverage is useful in my
> opinion.
Ok, no problem.
> There is already ppc64-pseries, which isn't an embedded system or do
> I missed something? :=)
Yes, it was contributed by IBM IIRC, so we kind of assumed they would
be around to fix issues if any (though in practice we have not yet
added a PowerPC 64 toolchain configuration in the autobuilders, so my
comment is a bit moot as we have never tested the reactivity of the IBM
guys).
> > > config BR2_ENDIAN
> > > default "BIG"
> > > @@ -20,3 +24,4 @@ config BR2_ENDIAN
> > > config BR2_GCC_TARGET_CPU
> > > default "leon3" if BR2_sparc_leon3
> > > default "v8" if BR2_sparc_v8
> > > + default "ultrasparc" if BR2_sparc_v9
> >
> > Why not using v9 here? It's a valid -mcpu value:
>
> Valid, but not useful for Linux:
> http://permalink.gmane.org/gmane.comp.lib.glibc.alpha/10649
So maybe the option should be called v9a, rather than just v9 ? Or just
Ultrasparc so it matches the name of the gcc -mcpu option ?
Thanks!
Thomas
--
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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