Re: [Ltib] linux modules build question

[Stuart Hughes]

Hi Dave,

The only thing I'd expect in rootfs/usr/src/linux is the kernel headers.

The correct place (as you found) for interaction with the kernel sources
is rpm/BUILD/linux.   

It may be worth a look at the kernel module example (use ./ltib -p
hello_mod -m prep) and spec file
(dist/lfs-5.1/helloworld/hello_mod.spec).  In particular there is a
README which has a little information and some links.  Also the Makefile
is a reasonably representative example of one way to build a kernel
module.

Regards, Stuart

On Mon, 2007-03-26 at 22:16 -0700, David warman wrote:
> Hi Stuart,
> 
> It may be a mis-understanding, but something, not by my conscious  
> action, at one time copied the sources over to ltib/rootfs/usr/src/ 
> linux, and again something, not me, removed them later. Since /usr/ 
> src/linux is assumed to be the -C make argument by every module  
> Makefile I have looked at so far, those not included with ltib, I was  
> coming to assume that that is the normal place to find them.
> 
> However, I resolved my issue by using ltib/rpm/BUILD/linux instead.
> 
> 
> Thanks for your help and comments.
> 
> 
> David Warman
> Digital Design
> address@hidden
> http://www.davidwarman.net
> http://www.linkedin.com/pub/1/a93/90b
> 
> 
> 
> On Mar 26, 2007, at 1:01 AM, Stuart Hughes wrote:
> 
> > Hi David,
> >
> > I'm not sure whether this is a bug or a misunderstanding.
> >
> > When you build the kernel the config file gets saved in rootfs/boot as
> > linux.config.  This is not expected to be used for builds though, it's
> > there for a record of how the the kernel was configured.
> >
> > The kernel sources are not saved into rootfs.  If you select 'keep
> > sources', this tells ltib not to remove the rpm sources for the kernel
> > in rpm/BUILD/linux.  This directory will also (normally) contain your
> > kernel .config file after the kernel has been built.
> >
> > If this does not answer your question, please can you frame it as a
> > clear test-case/example.
> >
> > Regards, Stuart
> >
> > On Fri, 2007-03-23 at 12:38 -0700, David Warman wrote:
> >> Hi All,
> >>
> >> I have just managed to complete building a new kernel module -
> >> usbvision as it happens - and the final issue I had to fix involved
> >> copying ltib/rpm/BUILD/linux/.config to ltib/rootfs/usr/src/linux.
> >> Everything else from the rpm folder had been copied by ltib but not
> >> the .config file. Is this how ltib is supposed to work or is it an
> >> omission? If an ltib bug, where should I look to do a proper fix? If
> >> my problem, how should I fix it so I do not have to manually check
> >> for this every time "keep sources" changes?
> >>
> >> Note: .config is included by ltib/rootfs/usr/src/linux/scripts/
> >> Makefile.modpost:38; its absence causes a "no rule to make .config"
> >> error and scbuild terminates.
> >>
> >> Thanks all.
> >>
> >> ltib rocks!
> >>
> >>
> >> David Warman
> >> address@hidden
> >>
> >>
> >>
> >>
> >>
> >> _______________________________________________
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> >>
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> >
> >
> >
>