kernel headers in my image

kernel headers in my image

[Daniele Lugli]

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Hi all,

I would like to have kernel headers in my image, in order to locally build a module.

I added

IMAGE_INSTALL:append = " kernel-dev"
IMAGE_INSTALL:append = " kernel-devsrc"
IMAGE_INSTALL:append = " kernel-modules"

in my image recipe and, as a result, I see that /usr/src/kernel and /lib/modules/${uname -r}/build are now populated.

But when I try to build my module (which builds correctly on a non-poky machine) I get:

./include/linux/compiler.h:247:10: fatal error: asm/rwonce.h No such file or directory

And, in fact, there is no rwonce.h under /usr/src/kernel. There is one under /lib/modules... but it is in asm-generic/rwonce.h

Any idea?

Thank you in advance
--
Daniele Lugli
General Logic srl
Viale Curreno, 41
10133 Torino
Italy
tel +39 329 3933041
www.general-logic.com ( http://www.general-logic.com/ )
www.linkedin.com/in/daniele- lugli ( http://www.linkedin.com/in/daniele-lugli )

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Re: [yocto] kernel headers in my image

[Bruce Ashfield]

On Wed, Jan 24, 2024 at 12:05 PM Daniele Lugli <daniele.lugli@gmail.com> wrote:
>
> Hi all,
>
> I would like to have kernel headers in my image, in order to locally build a module.
>
> I added
>
> IMAGE_INSTALL:append = " kernel-dev"
> IMAGE_INSTALL:append = " kernel-devsrc"
> IMAGE_INSTALL:append = " kernel-modules"
>
> in my image recipe and, as a result, I see that /usr/src/kernel and /lib/modules/${uname -r}/build are now populated.
>
> But when I try to build my module (which builds correctly on a non-poky machine) I get:
>
> ./include/linux/compiler.h:247:10: fatal error: asm/rwonce.h No such file or directory
>
> And, in fact, there is no rwonce.h under /usr/src/kernel. There is one under /lib/modules... but it is in asm-generic/rwonce.h
>

Have you run "make scripts prepare" in /usr/src/kernel ?

Bruce

> Any idea?
>
> Thank you in advance
> --
> Daniele Lugli
> General Logic srl
> Viale Curreno, 41
> 10133 Torino
> Italy
> tel +39 329 3933041
> www.general-logic.com
> www.linkedin.com/in/daniele-lugli
>
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Re: [yocto] kernel headers in my image

[Daniele Lugli]

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I hadn't. Now, my modules are built.

Thank you very much!
--
Daniele Lugli
General Logic srl
Viale Curreno, 41
10133 Torino
Italy
tel +39 329 3933041
www.general-logic.com ( http://www.general-logic.com/ )
www.linkedin.com/in/daniele- lugli ( http://www.linkedin.com/in/daniele-lugli )

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