[oe] [oe-commits] Roman I Khimov : (e) glibc-package: fix kernel version passed to qemu

[Phil Blundell]

On Mon, 2009-05-18 at 23:37 +0400, Roman I Khimov wrote:
> On Monday 18 May 2009 22:54:53 Phil Blundell wrote:
> > I think it would be better to leave the semantics of OLDEST_KERNEL alone
> > and just teach qemu to use either the same __LINUX_KERNEL_VERSION as
> > glibc's configure script has settled on, or (perhaps better) just the
> > newest version that it supports for the given target.
> 
> Well, from my point of view, any static version is bad, because it's magic 
> thrown in. When I've stumbled upon this, I've scratched my head a bit on why 
> the hell is it 2.6.16, not 2.6.10, not 2.6.20, not anything else but 2.6.16. 
> Sure enough, it's just something that worked some time ago for someone and was 
> hardcoded then.

Agreed, a static version is clearly wrong.

> Of course, we can take version from __LINUX_KERNEL_VERSION, but that's more 
> work and it doesn't fix misconfiguration we have when glibc has to decide that 
> it knows better its minimal requirements for target.

I'm not sure what you're saying here.  __LINUX_KERNEL_VERSION (from
config.h) is precisely the version that glibc is compiled to expect (and
what dl-sysdep checks against).  So, if you run qemu as that same kernel
version, it is guaranteed to always be compatible with the glibc build
in question.

p.