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Author Topic: Compling kernel module on piCore 12.x  (Read 1208 times)

Offline runningopenloop

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Compling kernel module on piCore 12.x
« on: October 14, 2021, 12:34:03 AM »
Hi all,

I was going to compile a module.  I installed the headers tcz.

I understand I need the /lib/modules/`uname -r`/build directory.
I have /lib/modules/5.4.51-piCore/   - no build.

I got some help from http://forum.tinycorelinux.net/index.php/topic,22343.0.html
But I'm missing something, or it's just that the http://tinycorelinux.net/12.x/armv6/releases/RPi/src/kernel/linux-5.4.51-piCore.tar.xz is in error.  Only 73 bytes of a 404 message.

First I tried uncompressing, http://tinycorelinux.net/12.x/armv6/releases/RPi/src/kernel/modules-5.4.51-piCore.tar.xz
but that has a build directory which is just a link to some non-existing, /home/...../linux-git directory.

Then I was going to try the linux-5.4.51-piCore.tar.xz file in same directory (as above), but it is in error.  Only 73 bytes of a 404 message.
  > Is this the missing file I need or am I overlooking something else simple?

I'm thinking that this linux-5.4.51-piCore.tar.xz will contain a directory I can link my build/ directory to.  And this is the base of the linux file that is in error?
  > Do I just need to grab https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.4.51.tar.xz ?

73,
Timothy
 


Offline Juanito

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Re: Compling kernel module on piCore 12.x
« Reply #1 on: October 14, 2021, 12:53:40 AM »
To compile the kernel, you need the compiletc, perl5, bc, ncurses-dev and libelf-dev extensions.

The link to linux-5.4.51-piCore.tar.xz on the server was broken, it should be OK now.

To build an out of kernel module, you need to configure the kernel with the apropriate piCore config and create a build symlink to your prepare kernel source.