Re: Support for building individual .ko's would be nice :-)

[Marc Singer <elf@buici.com>]

On Tue, Apr 20, 2004 at 09:59:04PM +0300, Pekka Pietikainen wrote:
> I was told you're the man to bug about this :-)
> 
> Having a slow box, a vendor kernel (+ kernel-source package with config
> for it) and a need to modify one line of a module, recompile it,
> replace existing module with it and continue business as usual
> made me notice kbuild doesn't seem to have a facility for this.
> 
> What would be nice is (say)
> 
> cp configs/xxx-i686.config .config
> emacs drivers/media/dvb/frontends/ves1820.c
> make drivers/media/dvb/frontends/ves1820.ko
> cp ves1820.ko /lib/modules/...
> rmmod ves1820; modprobe ves1820 
> 
> Or am I missing something obvious that let me get just that one .ko
> without recompiling just about everything? (.o is easy, but that's
> not very useful :-) )

If you leave the compiled tree intact, all you need to do is modify
the one source file and then "make modules".  You'll wait a while the
first time, but successive builds will be minimal.