Re: lesson 2 of kernel programming course now up

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On Sun, Jun 13, 2010 at 6:30 AM, Aiolia Lea <casmyu@xxxxxxxxx> wrote:
> Hi, rday
>
> Perfect job~~ It is really a nice course!
>
> And I have a little comments, consider this scenario:
>
> As a kernel beginner (like me), sometimes, I just want to rebuild part of
> the kernel, reather than the whole kernel tree. How could we do? Such as, we
> just modified one line of code or one function, do we still need to rebuild
> the whole kernel? After all, rebuild the whole kernel will cost more times.
>
> Could you  add some kernel development environment setup topics for the
> above scenario. To be honsest, I am really want to know, the engineer in
> redhat, suse, how does he do in the reallife development? If he focus on one
> feature, such as MM or scheduler, does he also need to recompile the whole
> kernel when he make a little change?  Especially he just want to clarify a
> little idea.

The kernel build process takes care of this. The compilation is done
for the files and modules affected. I am a bit out of touch to say
more because the linking process and the symbols might require the
last stage of building to be redone completely.

I have done quite some work on kernel building and configuration but
still confused with initrd and initramfs even after going through the
docs some few months back. Now I need to do some work on initrd. If
someone can give me some hints and pointers on how a custom initrd can
be supported with the kernel of interest then it will be appreciated.
I'll be googling it after a while too :)

Lets see what others have to say.


-- 
Shaz

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