[oe] arm kernel configurations

Phil Blundell pb at reciva.com
Thu Oct 30 15:08:04 UTC 2008


On Thu, 2008-10-30 at 10:40 -0400, Tom Talpey wrote:
> At 11:26 AM 10/29/2008, Phil Blundell wrote:
> >- if your userspace is pure EABI, make sure that you have
> >CONFIG_OABI_COMPAT turned off.
> 
> My kernel(s) have all hung during exec of init when trying this.
> Are you able to turn this off with non-thumb userspace?

Yes, it doesn't require Thumb.  Are you sure that your userspace really
is compiled for EABI and not OABI?

> One side effect of turning off OABI_COMPAT is that the floating
> point emulation also vanishes. I get the same behavior if I leave
> OABI_COMPAT on and play with fp settings.

That sounds rather like some part of your userspace has been built with
hard-fpa floating point.  FPA is basically incompatible with EABI (and I
think all extant EABI configs in OE are soft-float) so this would also
indicate that you are actually using OABI.

> This is mostly with 2.6.27 on my iPAQ h1940 (s3c2410). Same
> as GTA01, right?

Right.

p.






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