On Sat, Jul 18, 2009 at 3:26 PM, Rishi Agrawal<[email protected]> wrote:
> Hello All,
>
> I have this particular directory Hierarchy
>
> foo
> |
> |__ include(directory)
> |
> |__kernel(directory)
> |
> |__user_space(directory)
>
>
> Include directory has the header file which is required by both the kernel
> space code and the user space code
>
> kernel has a character device driver, and a kern_make_file.mk to compile the
> chardev
>
> user_space has the user space code, make_file and the configure script.
>
> I want to compile the chardev using the user space make file
>
> for this I added a line "include kern_make_file.mk" in the user space make
> file
>
> but it is giving me the warnings and does not compile the user space code
>
> the warnings are :
>
> Makefile:16: warning: overriding commands for target `all'
> ../kernel/make_kernel.mk:8: warning: ignoring old commands for target `all'

Is there "all" target in your kernel makefile? seems there is a
clash.... Perhaps you need to show us the content of your Makefile,
both for user and kernel space code, to ease clarification...

> Moreover I would like to know wether it is possible to compile the user
> space code and kernel space code in one make file

I think yes, you just need to be careful for things like : CFLAGS
(likely it will be different for user and kernel code), include path
and so on.

So, to avoid headache, I think it's better to separate the Makefile....

-- 
regards,

Mulyadi Santosa
Freelance Linux trainer
blog: the-hydra.blogspot.com

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