Custom Kernel Recipe: How to specify KCFLAGS args during kernel build?

Custom Kernel Recipe: How to specify KCFLAGS args during kernel build?

[Prasant J]

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Hi,

When I was building the kernel outside the yocto project, I used to pass
"KCFLAGS+=" argument during command line (make arguments). This would
include my custom code, if I needed during the build.


In my custom yocto layer, I am adding linux kernel recipe. How can I
specify "KCFLAGS+=" args in the bitbake recipe?


Any inputs will be of help. Is there any example kernel recipe that uses
this feature?


Regards, PJ

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Re: Custom Kernel Recipe: How to specify KCFLAGS args during kernel build?

[Khem Raj]

On Sun, Dec 20, 2015 at 4:38 AM, Prasant J <pj0585@gmail.com> wrote:
> Hi,
>
> When I was building the kernel outside the yocto project, I used to pass
> "KCFLAGS+=" argument during command line (make arguments). This would
> include my custom code, if I needed during the build.
>
>
> In my custom yocto layer, I am adding linux kernel recipe. How can I specify
> "KCFLAGS+=" args in the bitbake recipe?

Just like this. may be you can presend it with export if you want to
make it available to all tasks for that recipe

>
>
> Any inputs will be of help. Is there any example kernel recipe that uses
> this feature?
>
>
> Regards, PJ
>
>
>
> --
> _______________________________________________
> poky mailing list
> poky@yoctoproject.org
> https://lists.yoctoproject.org/listinfo/poky
>

Re: Custom Kernel Recipe: How to specify KCFLAGS args during kernel build?

[Prasant J]

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On Mon, Dec 21, 2015 at 3:21 AM, Khem Raj <raj.khem@gmail.com> wrote:

> On Sun, Dec 20, 2015 at 4:38 AM, Prasant J <pj0585@gmail.com> wrote:
> > Hi,
> >
> > When I was building the kernel outside the yocto project, I used to pass
> > "KCFLAGS+=" argument during command line (make arguments). This would
> > include my custom code, if I needed during the build.
> >
> >
> > In my custom yocto layer, I am adding linux kernel recipe. How can I
> specify
> > "KCFLAGS+=" args in the bitbake recipe?
>
> Just like this. may be you can presend it with export if you want to
> make it available to all tasks for that recipe
>
> >
> >
>


Thanks Khem. I will try that.


Regards, PJ

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