Compiling a kernel for armv5 + armv6

Sascha Hauer s.hauer at pengutronix.de
Thu Mar 3 09:01:38 EST 2011


On Thu, Mar 03, 2011 at 03:50:26PM +0200, saeed bishara wrote:
> On Thu, Mar 3, 2011 at 3:20 PM, Sascha Hauer <s.hauer at pengutronix.de> wrote:
> > Doing so currently breaks with:
> >
> > arch/arm/kernel/entry-armv.S: Assembler messages:
> > arch/arm/kernel/entry-armv.S:196: Error: selected processor does not support `strex r1,r2,[sp]'
> > arch/arm/kernel/entry-armv.S:228: Error: selected processor does not support `strex r1,r2,[sp]'
> > arch/arm/kernel/entry-armv.S:286: Error: selected processor does not support `strex r1,r2,[sp]'
> > arch/arm/kernel/entry-armv.S:323: Error: selected processor does not support `strex r1,r2,[sp]'
> >
> > These are used in svc_exit and restore_user_regs.
> >
> > Is there a way to fix this or do we have to live with this?
> try to add this line to the Makefile
>  AFLAGS_entry-armv.o      :=-Wa,-march=armv6k

This surely keeps the compiler happy, but I doubt the result will work
on an armv5 processor.

Sascha


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