Libav 0.7 FTBFS on mipsel: Error: opcode not supported on this processor: mips2 (mips2) `ldl $2, 7($13)'

[Aurelien Jarno]

On Wed, Jul 20, 2011 at 08:52:45PM +0200, Philipp Kern wrote:
> [ mips* buildds Cc'ed ]
> 
> On Tue, Jul 19, 2011 at 09:58:34PM +0200, David Kuehling wrote:
> > The complete userspace *is* o32, just the kernel is not.  I think that
> > is a pretty valid way to run a system, compiling the kernel for mips64
> > gives better performance on those machines that can run mips64 code.
> > 
> > A mips64 kernel can run 32 and 64-bit architecture binaries, and has to
> > pick one description when asked via 'uname -m'.  The 'setarch' tool can
> > be used to configure which architecture that is.
> > 
> > I.e. athough my machine usually returns 'mips64' on 'uname -m', after
> > running, 'setarch mips' it returns just 'mips'.  Maybe that'd be a a
> > cleaner way to fix the problem for all package builds?
> 
> I think that's a misconfiguration of the buildds.  They're supposed to
> put linux32 into the schroot configuration if the kernel arch differs
> from the userspace arch, to get the right entry into uname.

It should be fixed right now, but it would be nice to have that in
create-chroot.sh as otherwise we might forget next time we create a
chroot or setup a machine.

-- 
Aurelien Jarno	                        GPG: 1024D/F1BCDB73
aurelien at aurel32.net                 http://www.aurel32.net