Problem while compiling my module on downloaded kernel source

[Sankar P]

2014-03-15 9:59 GMT+05:30 Rahul Garg <rahul.lnmiit at gmail.com>:
> Hi,
>
> Being newbie to kernel, I downloaded the source code of stable kernel
> code[3.13.6].

I am curios to know why you are doing a source build of the stable
kernel in the first place when your code is going to be a kernel
module.

You can just install the kernel-devel or similar RPM provided by your
distro and develop your kernel module against the running kernel. It
will make your life a lot simpler.

The only reason that I could think of when you may want to build a
source build of the kernel and then build a KMP against this kernel
build is when you have some changes in the kernel source tree itself.
But I believe that stable will be a wrong choice for that if you want
to upstream you changes and the master may be a better fit.

> Then I build it using make oldconfig && make prepare.
>
> Now when I am trying build my kernel module against this source code.
> But I am unable to do so, Here is the error I am getting
>
> make -C /home/rahul/linux-3.13.6 M=/home/rahul/KerenelTryouts modules
> make[1]: Entering directory `/home/rahul/linux-3.13.6'
>
>   WARNING: Symbol version dump /home/rahul/linux-3.13.6/Module.symvers
>            is missing; modules will have no dependencies and modversions.
>
>   CC [M]  /home/rahul/KerenelTryouts/test.o
> /bin/sh: 1: /home/rahul/linux-3.13.6/scripts/recordmcount: not found
> make[2]: *** [/home/rahul/KerenelTryouts/test.o] Error 127
> make[1]: *** [_module_/home/rahul/KerenelTryouts] Error 2
> make[1]: Leaving directory `/home/rahul/linux-3.13.6'
> make: *** [all] Error 2
>
>
> Here is my make file for your reference
>
> KERNELDIR=/home/rahul/linux-3.13.6
>
> obj-m += test.o
>
>
> all:
> ifneq ($(KERNELDIR), )
> make -C $(KERNELDIR) M=$(PWD) modules
> else
> make -C /lib/modules/$(shell uname -r)/build M=$(PWD) modules
> endif
>
> clean:
> make -C /lib/modules/$(shell uname -r)/build M=$(PWD) clean
>
>
> Please help me out with this.
>
> Regards
> Rahul
>
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-- 
Sankar P
http://psankar.blogspot.com