Compiling thee kernel

[Paul Fox]

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

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