Re: Integrating relocatable kernel build with kernel build

[Mohan Kumar M <mohan@in.ibm.com>]

Hi Sam,

Thank you for the reply.

Sam Ravnborg wrote:
> Hi Mohan.
> 

> 
> Add the relevant target to the all: rule in arch/powerpc/Makefile
> 
> # Default to zImage, override when needed
> all: zImage

I added vmlinux.reloc here and now by default vmlinux.reloc is also built.
> 
> And include support for the target in same file.
> 
> 
>> 2. During build process, build is not able to build the 
>> vmlinux.reloc.lds linker script from the vmlinux.reloc.lds.S source file.
> 
> If you just add:
> extra-y += vmlinux.reloc.lds

After including the above entry, make builds the linker script.

> 
> then it should happen automatically.
> ee how all archs does it in arch/$ARCH/kernel/Makefile for vmlinx.lds
> 

> I did not look at it this time - lacking time.
> But tr to provide a single unified diff next time - that i
> at least remotely readable.
> 
>> Another feature I am looking is to generate the "relocatable vmlinux" 
>> image in the top directory of kernel source and the intermediate vmlinux 
>> file either in arch/powerpc/kernel or arch/powerpc/boot.
> We no longer build arch specific targets in the top-level directory
> of the kernel src. We print out where to locate the build file.
>

Still need to build the final "relocatable vmlinux" image in the top
level directory of kernel source (either as vmlinux or vmlinux.reloc).

Once again thank you.

Regards,
Mohan.