linux-kernel - Re: `make checkstack' and cross-compilation

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Message-ID: <Pine.LNX.4.62.0612011708550.30940@pademelon.sonytel.be>
Date:	Fri, 1 Dec 2006 17:09:17 +0100 (CET)
From:	Geert Uytterhoeven <Geert.Uytterhoeven@...ycom.com>
To:	Jeff Dike <jdike@...toit.com>
cc:	Linux Kernel Development <linux-kernel@...r.kernel.org>
Subject: Re: `make checkstack' and cross-compilation

On Fri, 1 Dec 2006, Jeff Dike wrote:
> On Fri, Dec 01, 2006 at 02:58:16PM +0100, Geert Uytterhoeven wrote:
> > Makefile has:
> > | # Use $(SUBARCH) here instead of $(ARCH) so that this works for UML.
> > | # In the UML case, $(SUBARCH) is the name of the underlying
> > | # architecture, while for all other arches, it is the same as $(ARCH).
> > | checkstack:
> > |         $(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \
> > |         $(PERL) $(src)/scripts/checkstack.pl $(SUBARCH)
> > 
> > While this may fix `make checkstack' for UML, it breaks cross-compilation.
> > E.g. when cross-compiling for PPC on ia32, ARCH=powerpc, but SUBARCH=i386.
> > 
> > Probably it should use SUBARCH if ARCH=um, and ARCH otherwise?
> 
> Whoops, you're right.  
> 
> Do you have a patch?  If not, I'll make one.

No.

> And, do you have a cross-compilation environment which tests this?

Yes :-)

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- Sony Network and Software Technology Center Europe (NSCE)
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Voice +32-2-7008453 Fax +32-2-7008622 ---------------- B-1935 Zaventem, Belgium
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