Re: Userland headers available

[H. Peter Anvin]

Followup to:  <4011788D.3070606@xxxxxxxxxxxxxxxxxx>
By author:    Chris Friesen <cfriesen@xxxxxxxxxxxxxxxxxx>
In newsgroup: linux.dev.kernel
>
> Friesen, Christopher [CAR:7Q28:EXCH] wrote:
> 
> > The obvious way is to have the kernel headers include the userland
> > headers, then everything below that be wrapped in "#ifdef __KERNEL__". 
> > Userland then includes the normal kernel headers, but only gets the 
> > userland-safe ones.
> 
> I just realized this wasn't clear.  I envision a new set of headers in 
> the kernel that are clean to export to userland.  The current headers 
> then include the appropriate userland-clean ones, and everything below 
> that is kernel only.
> 
> This lets the kernel maintain the userland-clean headers explicitly, and 
> we don't have the work of cleaning them up for glibc.
> 

We've referred to this for quite a while as the "ABI header project";
it's been targetted for 2.7, since it missed the 2.6 freeze.

We have set up a mailing list at:

	http://zytor.com/mailman/listinfo/linuxabi

The goal is to get a formal exportable version of the kernel ABI that
user-space libraries can use.

	-hpa
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