Module develop issue

Module develop issue

[吳秉昌]

Hi teams

I try to develop own module. I try copy poky/meta-skeleton/recipes-kernel/hello-mod to my machine.
I run the command “bitbake hello-mod”, but it is failed.

The error message is “needed by Module.symvers” , “kernel-source/Makefile:1665: recipe for target 'modules' failed”.

Please give me some suggestions!.

BR
Paul

Re: Module develop issue

[吳秉昌]

Hi teams

Today, I try to install SDK, I can build and run "hello world”, but I still can’t build the hello-mod module.
Please give me some suggestions. Many thanks!

BR
Paul

> 吳秉昌 <wh800805@gmail.com> 於 2021年7月30日 下午6:40 寫道：
> 
> Hi teams
> 
> I try to develop own module. I try copy poky/meta-skeleton/recipes-kernel/hello-mod to my machine.
> I run the command “bitbake hello-mod”, but it is failed.
> 
> The error message is “needed by Module.symvers” , “kernel-source/Makefile:1665: recipe for target 'modules' failed”.
> 
> Please give me some suggestions!.
> 
> BR
> Paul

Re: Module develop issue

[Andrew Jeffery]

On Mon, 2 Aug 2021, at 19:31, 吳秉昌 wrote:
> Hi teams
> 
> Today, I try to install SDK, I can build and run "hello world”, but I 
> still can’t build the hello-mod module.
> Please give me some suggestions. Many thanks!

I'm not aware of anyone else in the OpenBMC community developing kernel 
modules this way, which might be why you haven't got many responses.

My approach is just to work on the kernel directly (i.e. clone the 
kernel sources and add your code to the appropriate locations). Is this 
something that you can try?

Andrew

Re: Module develop issue

[吳秉昌]

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Hi Andrew

Thanks you response! I already fixed the issue. 
I download the linux source code form "https://github.com/openbmc/linux <https://github.com/openbmc/linux>”, and replace the kernel path on file "meta-aspeed/recipes-kernel/linux/linux-aspeed.inc”. Now I can build the out of tree module and install to my machine.

BR
Paul


> Andrew Jeffery <andrew@aj.id.au> 於 2021年8月3日 下午7:42 寫道：
> 
> 
> 
> On Mon, 2 Aug 2021, at 19:31, 吳秉昌 wrote:
>> Hi teams
>> 
>> Today, I try to install SDK, I can build and run "hello world”, but I 
>> still can’t build the hello-mod module.
>> Please give me some suggestions. Many thanks!
> 
> I'm not aware of anyone else in the OpenBMC community developing kernel 
> modules this way, which might be why you haven't got many responses.
> 
> My approach is just to work on the kernel directly (i.e. clone the 
> kernel sources and add your code to the appropriate locations). Is this 
> something that you can try?
> 
> Andrew


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