Compiling thee kernel

[Ajay Garg]

On Tue, Jun 11, 2013 at 6:38 PM, Paul Fox <pgf at laptop.org> wrote:

> ajay wrote:
>  > On Tue, Jun 11, 2013 at 6:25 PM, Paul Fox <pgf at laptop.org> wrote:
>  >
>  > > ajay wrote:
>  > >  > Hi James.
>  > >  > Thanks a ton for the reply !!!!
>  > >  >
>  > >  > Here are the steps I followed on my x86-based Dell laptop::
>  > >  >
>  > >  > a)
>  > >  > "cd ~"
>  > >  >
>  > >  >
>  > >  > b)
>  > >  > "git clone git://dev.laptop.org/olpc-kernel"
>  > >  >
>  > >  >
>  > >  > c)
>  > >  > "cd olpc-kernel"
>  > >  >
>  > >
>  > > you left out:
>  > >     cp arch/x86/configs/xo_1.5_defconfig .config
>  > >     make oldconfig
>  > >
>  >
>  > Ohh ok..
>
> oops.  you're probably still on master.  there's another missing step:
>     git checkout x86-3.3
>

That did it !!!
(
 Also, sorry and thanks to James, since the "branch" was the first thing he
asked
).

I could compile the kernel by replacing the config-file, and also managed
to break it after haphazardly editing "drivers/media/video/ov7670.c" :)

Thanks again James and Paul !!!


> paul
>
>  >
>  > Currently, I do not see any such file as
>  arch/x86/configs/xo_1.5_defconfig
>  > :-\
>  > Doing "ls -l arch/x86/configs gives me" ::
>  >
>  > [ajay at localhost olpc-kernel]$ ls -l arch/x86/configs/
>  > total 16
>  > -rw-rw-r--. 1 ajay ajay 7511 Jun  9 05:37 i386_defconfig
>  > -rw-rw-r--. 1 ajay ajay 7528 Jun  9 05:37 x86_64_defconfig
>  >
>  >
>  > Paul,
>  >
>  > a)
>  > Are there some additional steps to generate the config file for XO-1.5?
>  >
>  > b)
>  > Secondly, is the "marvell" module generatable only on the XO-1.5? As
> far as
>  > I know, the OmniVersion sensor works since the earliest series of
> laptops?
>  >
>  >
>  >
>  > > paul
>  > >
>  > >  >
>  > >  > d)
>  > >  > "make"
>  > >  >
>  > >  >
>  > >  > e)
>  > >  > Wait many minutes (if not hours).
>  > >  > Everything runs to completion.
>  > >  >
>  > >  >
>  > >  > f)
>  > >  > Haphazardly edit "drivers/media/video/ov7670.c".
>  > >  >
>  > >  >
>  > >  > g)
>  > >  > Now, run "make" again.
>  > >  >
>  > >  > Because of the haphazard editing of the file in step f), the build
>  > > should
>  > >  > break.
>  > >  > However, it doesn't, and it runs to completion as before.
>  > >  >
>  > >  >
>  > >  > h)
>  > >  > At any time, there is no object file (.o) or kernel-object (.ko)
> file
>  > >  > whatsoever in the directory "drivers/media/video/marvell-ccic".
>  > >  >
>  > >  >
>  > >  > i)
>  > >  > Because of observation of step h), and the fact that "ov7670.h" is
> used
>  > > in
>  > >  > the file "drivers/media/video/marvell-ccic/mcam-core.c",
>  > >  > I doubt if the "marvell" module is being compiled at all.
>  > >  >
>  > >  >
>  > >  > j)
>  > >  > Moreover, the "I2C VS SMBus" has stemmed into my imagination,
> looking at
>  > >  > the file "drivers/media/video/Kconfig" :)
>  > >  >
>  > >  >
>  > >  > Note that following the steps f) and g) after haphazardly editing a
>  > >  > different file like "drivers/media/video/tvaudio.c" DOES break the
>  > > build.
>  > >  > That means that I am at least following the right ways to break the
>  > > build :P
>  > >  >
>  > >  >
>  > >  > James,
>  > >  > please let me know if you require any more info.
>  > >  >
>  > >  > Thanks again for the help !!
>  > >  >
>  > >  >
>  > >  > On Tue, Jun 11, 2013 at 4:05 PM, James Cameron <quozl at laptop.org>
>  > > wrote:
>  > >  >
>  > >  > > G'day Ajay,
>  > >  > >
>  > >  > > I've never heard of such a restriction.  Can you tell us the
> name of
>  > >  > > the branch you compiled, and what method you used?  Perhaps
> share the
>  > >  > > output?
>  > >  > >
>  > >  > > --
>  > >  > > James Cameron
>  > >  > > http://quozl.linux.org.au/
>  > >  > >
>  > >  >
>  > >  >
>  > >  >
>  > >  > --
>  > >  > Regards,
>  > >  >
>  > >  > Ajay Garg
>  > >  > Dextrose Developer
>  > >  > Activity Central: http://activitycentral.com
>  > >  > part 2     text/plain                 129
>  > >  > _______________________________________________
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>  > >
>  > > =---------------------
>  > >  paul fox, pgf at laptop.org
>  > > _______________________________________________
>  > > Devel mailing list
>  > > Devel at lists.laptop.org
>  > > http://lists.laptop.org/listinfo/devel
>  > >
>  >
>  >
>  >
>  > --
>  > Regards,
>  >
>  > Ajay Garg
>  > Dextrose Developer
>  > Activity Central: http://activitycentral.com
>
> =---------------------
>  paul fox, pgf at laptop.org
>



-- 
Regards,

Ajay Garg
Dextrose Developer
Activity Central: http://activitycentral.com
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