[klibc] klibc integrated in the kernel

[hpa at zytor.com]

> This seem to be a good timing taking up the integration of klibc in the
> kernel again.
> Based one klibc-0.152 and klibc.bkbits.net/2.5-klibc I will take a shot of
> it.
>
> I will focus on getting the library compiled (should be pretty
> straighforward).
> Next two steps are:
> 2) Adding minimum applications to the kernel (if any)
> 3) Support applications outside the kernel
>

Linus has pretty clearly stated that for klibc to be integrated it needs
to provide actual functionality, i.e. kernel code has to be removed (this
should presumably be a separate set of patches in a patchset, but still.) 
The obvious candidates are ipconfig/nfsroot; I will spend some more time
getting the ipconfig/nfsroot klibc utilities to work properly -- I've
already done a fair bit of debugging, but I need a better test setup.

I think we're getting pretty close to where we need to be, so with kbuild
integration we should have something pretty soon.

> I will put my work on bkbits.net when I have something useable,
> and also post patches here.
>
> If anyone already working on this please say so, to avoid duplicate
> effort.

Other than the stale tree by Brian O'Sullivan, I don't think so.

	-hpa