Re: SCSI Makefile cleanup

From: Jeff Garzik (jgarzik@mandrakesoft.com)
Date: Sun Feb 06 2000 - 17:27:29 EST


david parsons wrote:
> Jeff Garzik wrote:
> > david parsons wrote:
> > > It might be worthwhile to add a requirements function call to the
> > > kernel, so you can have drivers explicitly load what they depend
> > > on before they start loading. Something like:

> > > need("aha1542");

> > > in the buslogic driver?

> > That would be wonderful... I really don't like defining driver load
> > order implicitly through Makefile link order. I imagine "need()" would
> > have to be some sort of trigger which ld (or a pre-ld script) uses to
> > figure out the link order for the static kernel image?

> That would work better than what I was thinking about:. I was
> actually thinking of maintaining some sort of (dare I say it?)
> kernel registry, but that would be massive overkill for these
> purposes.

In a discussion along a similar vein on linux-kernel a while back, I
learned that you can have tons of different ELF sections pretty easily.
At least in theory :) it shouldn't be too hard to stick each module into
its own ELF section, and then have a Perl script or similar re-order the
sections in the kernel's ld script, prior to the final link.

Different magic would be needed for depmod/kmod though, possibly just a
generic module parm exported and processed in userspace.

I'm no ELF wizard so there might be a better way...

        Jeff

-- 
Jeff Garzik         | Post-Linux-Expo TODO:  Learn more
Building 1024       | French curse words from Pixel.
MandrakeSoft, Inc.  |

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