'make ARCH=ppc defconfig' failing for cross-compile

'make ARCH=ppc defconfig' failing for cross-compile

[Judith Lebzelter]

Hello,

I have been doing cross-compiles for ppc and powerpc on my i686 system. 
In order to do this I generate the .config file like this:

make ARCH=ppc defconfig
(or make ARCH=powerpc defconfig)

This is the error for ppc:

***
*** Can't find default configuration "arch/ppc/configs/common_defconfig"!
***
make[1]: *** [defconfig] Error 1
make: *** [defconfig] Error 2
 

If I replace this file 'arch/ppc/configs/common_defconfig' with an old one, 
it does create my .config.  The allmodconfig, allyesconfig and allnoconfig 
work as I expect.


This is also happening for powerpc with a slightly different error where 
it seems to get the architecture from my system rather than the 
specified target architecture:


drivers/pcmcia/Kconfig:187:warning: leading whitespace ignored
***
*** Can't find default configuration "arch/powerpc/configs/i686_defconfig"!
***
make[1]: *** [defconfig] Error 1
make: *** [defconfig] Error 2


Could you suggest something that would make these cross compile builds 
work again?

Thanks,

Judith

Re: 'make ARCH=ppc defconfig' failing for cross-compile

[Christian]

On Fri, 8 Sep 2006, Judith Lebzelter wrote:
> I have been doing cross-compiles for ppc and powerpc on my i686 system.
> In order to do this I generate the .config file like this:
>
> make ARCH=ppc defconfig
> (or make ARCH=powerpc defconfig)

Seems like defconfig has been removed, because there are so many 
sub-platforms for ppc:

$ ls arch/ppc/configs/*defconfig | wc -l
56

Just pick the defonfig for your platform, for my PReP that'd be:

$ make ARCH=ppc CROSS_COMPILE=powerpc-604-linux-gnu- prep_defconfig


HTH,
Christian.
-- 
BOFH excuse #383:

Your processor has taken a ride to Heaven's Gate on the UFO behind Hale-Bopp's comet.

Re: 'make ARCH=ppc defconfig' failing for cross-compile

[Judith Lebzelter]

On Tue, Sep 12, 2006 at 10:21:46AM -0700, Christian wrote:
> On Fri, 8 Sep 2006, Judith Lebzelter wrote:
> > I have been doing cross-compiles for ppc and powerpc on my i686 system.
> > In order to do this I generate the .config file like this:
> >
> > make ARCH=ppc defconfig
> > (or make ARCH=powerpc defconfig)
> 
> Seems like defconfig has been removed, because there are so many 
> sub-platforms for ppc:

I build these in OSDL's cross compile build farm (PLM) as a code check.
Our scripts are generalized to work for various architectures, so it is
disappointing that 'defconfig' no longer works for ppc the way it does 
in other achitectures.  Are there plans to make plain 'defconfig' work 
again, at least in the new 'powerpc' directory?  (The 'ppc64_defconfig' 
target looks good to me.:)

> 
> $ ls arch/ppc/configs/*defconfig | wc -l
> 56
> 
> Just pick the defonfig for your platform, for my PReP that'd be:

I will do this as a work-around.

TFYR,
Judith

> 
> $ make ARCH=ppc CROSS_COMPILE=powerpc-604-linux-gnu- prep_defconfig
> 
> 
> HTH,
> Christian.
> -- 
> BOFH excuse #383:
> 
> Your processor has taken a ride to Heaven's Gate on the UFO behind Hale-Bopp's comet.
> _______________________________________________
> Linuxppc-dev mailing list
> Linuxppc-dev@ozlabs.org
> https://ozlabs.org/mailman/listinfo/linuxppc-dev

Re: 'make ARCH=ppc defconfig' failing for cross-compile

[Michael Ellerman]

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On Tue, 2006-09-12 at 10:48 -0700, Judith Lebzelter wrote:
> On Tue, Sep 12, 2006 at 10:21:46AM -0700, Christian wrote:
> > On Fri, 8 Sep 2006, Judith Lebzelter wrote:
> > > I have been doing cross-compiles for ppc and powerpc on my i686 system.
> > > In order to do this I generate the .config file like this:
> > >
> > > make ARCH=ppc defconfig
> > > (or make ARCH=powerpc defconfig)
> > 
> > Seems like defconfig has been removed, because there are so many 
> > sub-platforms for ppc:
> 
> I build these in OSDL's cross compile build farm (PLM) as a code check.
> Our scripts are generalized to work for various architectures, so it is
> disappointing that 'defconfig' no longer works for ppc the way it does 
> in other achitectures.  Are there plans to make plain 'defconfig' work 
> again, at least in the new 'powerpc' directory?  (The 'ppc64_defconfig' 
> target looks good to me.:)

Perhaps you need to rework the scripts to cope for the fact that there
are different platforms under the architecture? There will never be a
defconfig for powerpc that builds all the code for all platforms, so to
get full test coverage you'll need to build more than one config anyway.

cheers

-- 
Michael Ellerman
OzLabs, IBM Australia Development Lab

wwweb: http://michael.ellerman.id.au
phone: +61 2 6212 1183 (tie line 70 21183)

We do not inherit the earth from our ancestors,
we borrow it from our children. - S.M.A.R.T Person

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Re: 'make ARCH=ppc defconfig' failing for cross-compile

[Judith Lebzelter]

On Thu, Sep 14, 2006 at 01:12:01PM +1000, Michael Ellerman wrote:
> On Tue, 2006-09-12 at 10:48 -0700, Judith Lebzelter wrote:
> > On Tue, Sep 12, 2006 at 10:21:46AM -0700, Christian wrote:
> > > On Fri, 8 Sep 2006, Judith Lebzelter wrote:
> > > > I have been doing cross-compiles for ppc and powerpc on my i686 system.
> > > > In order to do this I generate the .config file like this:
> > > >
> > > > make ARCH=ppc defconfig
> > > > (or make ARCH=powerpc defconfig)
> > > 
> > > Seems like defconfig has been removed, because there are so many 
> > > sub-platforms for ppc:
> > 
> > I build these in OSDL's cross compile build farm (PLM) as a code check.
> > Our scripts are generalized to work for various architectures, so it is
> > disappointing that 'defconfig' no longer works for ppc the way it does 
> > in other achitectures.  Are there plans to make plain 'defconfig' work 
> > again, at least in the new 'powerpc' directory?  (The 'ppc64_defconfig' 
> > target looks good to me.:)
> 
> Perhaps you need to rework the scripts to cope for the fact that there
> are different platforms under the architecture? There will never be a
> defconfig for powerpc that builds all the code for all platforms, so to
> get full test coverage you'll need to build more than one config anyway.
> 

Yes, I do not get full code coverage, which would be the ideal.
However, I do run defconfig, allmodconfig, allyesconfig and allnoconfig
and have found issues doing this. There is value in running for a
few representative ppc architectures, which I do.  That is why 'defconfig'
is (was) handy for me. 

I additionally compile other architectures such as i386, ia64, x86_64, 
arm, sparc64.  People can submit their kernel patches to see how 
their code compiles, and usually this is more platforms than they would 
do at home.:)

Thanks,
Judith

> cheers
> 
> -- 
> Michael Ellerman
> OzLabs, IBM Australia Development Lab
> 
> wwweb: http://michael.ellerman.id.au
> phone: +61 2 6212 1183 (tie line 70 21183)
> 
> We do not inherit the earth from our ancestors,
> we borrow it from our children. - S.M.A.R.T Person