Re: kbuild breaks um - fails to find util when linking

From: Sam Ravnborg
Date: Thu Jun 12 2008 - 17:05:47 EST


On Thu, Jun 12, 2008 at 04:13:15PM -0400, Jeff Dike wrote:
> On Thu, Jun 12, 2008 at 08:08:59PM +0200, Sam Ravnborg wrote:
> > Following patch will result in a building ARCH=um kernel.
> > If it works I dunno.
>
> You can just try running it. Given its behavior with this patch so
> far, it would be an excellent sign for it to figure out that it has no
> root filesystem and panic.
>
> Anyway, I can't get it to give me a UML binary. I see this in the
> build output (and V=3 doesn't make it any more verbose):
>
>
> CHK include/linux/compile.h
> LINK linux
>
> Compilation finished at Thu Jun 12 16:11:15
>
> but no linux or vmlinux in my output directory.

So appearantly kbuild thinks you have a vmlinux
so no need to relink.
And the line "LINK linux" implies this as well.

Please double check that you do not have a vmlinux,
and try V=2" to see where LINK picks up the vmlinux.

My build finised:
$ ./linux
./linux: /usr/lib/libc.so.1: bad ELF interpreter: No such file or directory

So I will take an additional look tomorrow.

Sam
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