kbuild- sub directroy makefile

kbuild- sub directroy makefile

[ratheesh kannoth]

******************Start of Makfile***********
ccflags += "-D DEXI"
obj-m := hello.o

************End*****************


Is there any way i can echo a string ...like "Hey i am building
hello.o now " in this makefile ?
I tries targets like genbin as per
http://lxr.free-electrons.com/source/Documentation/kbuild/modules.txt?v=3.9.

I dont think other targets would work as this is a sub-directory level
makefile which is being called from top directroy.

Any help is really appreciated


Thanks,
Ratheesh

kbuild- sub directroy makefile

[Greg KH]

On Wed, Apr 22, 2015 at 09:11:36PM +0530, ratheesh kannoth wrote:
> ******************Start of Makfile***********
> ccflags += "-D DEXI"
> obj-m := hello.o
> 
> ************End*****************
> 
> 
> Is there any way i can echo a string ...like "Hey i am building
> hello.o now " in this makefile ?

Nope, why do you want to do that?  The kernel build will show you that
hello.o is being built, when it is built.

greg k-h

kbuild- sub directroy makefile

[ratheesh kannoth]

On Wed, Apr 22, 2015 at 9:36 PM, Greg KH <greg@kroah.com> wrote:
> Nope, why do you want to do that?  The kernel build will show you that
> hello.o is being built, when it is built.

Greg,
There was some problem with env variables ( that i exported to shell
from top ) that my makefile is using.
 inorder to debug that i thought of adding some "echo " statements.

-Ratheesh

kbuild- sub directroy makefile

[Greg KH]

On Wed, Apr 22, 2015 at 09:42:59PM +0530, ratheesh kannoth wrote:
> On Wed, Apr 22, 2015 at 9:36 PM, Greg KH <greg@kroah.com> wrote:
> > Nope, why do you want to do that?  The kernel build will show you that
> > hello.o is being built, when it is built.
> 
> Greg,
> There was some problem with env variables ( that i exported to shell
> from top ) that my makefile is using.

Kernel makefiles should not be using any environment variables.  Your
makefile should be almost exactly what you posted, just a list of the .o
files it takes to build the module.  Nothing else is needed.

If it is, you are making things much harder than they should be :)

thanks,

greg k-h