From: Vanish <yuxing.fan.tubs@gmail.com>
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Subject: [alpine-user] Build kernel module for Alpine
Message-Id: <12F65096-CC56-4F42-A1BA-6D4534F6F6BE@gmail.com>
Date: Tue, 2 Jan 2018 18:24:54 +0100
To: alpine-user@lists.alpinelinux.org


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Hi everyone,

I'm going to build a little kernel module for Alpine, but get some =
problems.

Host: Ubuntu 16.04LTS 64bit
Guest : Alpine-vanilla-3.7.0-x86(kernel version 4.9.65)  in qemu

It looks like there is no build environment for a kernel module natively =
in Alpine, so I tried to use cross-compiler to build it in the host.
I first get an i686-linux-musl-gcc cross-compiler from  =
https://github.com/richfelker/musl-cross-make =
<https://github.com/richfelker/musl-cross-make>   . It works fine since =
a compiled Hello_World.c runs perfectly in the guest.
Right now, I'm trying to build a kernel module hello_kernel.c. I =
download linux kernel 4.9.65 first from kernel.org <http://kernel.org/> =
(e.g. in /home/yuxing/linux 4.9.65 ), and compile it with the =
cross-compiler mentioned above. Next, I use  the build environment in =
/home/yuxing/linux 4.9.65  with the cross compiler to build the =
hello_kernel.ko . It looks fine since no errors come out.
But when I insmod hello_kernel.ko in Alpine, the error

Can someone please give me some advices to figure this problem or how to =
build a kernel module for Alpine. Thanks in advance.

Regards,
Yuxing



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<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html =
charset=3Dus-ascii"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" =
class=3D"">Hi everyone,<div class=3D""><br class=3D""></div><div =
class=3D"">I'm going to build a little kernel module for Alpine, but get =
some problems.</div><div class=3D""><br class=3D""></div><div =
class=3D"">Host: Ubuntu 16.04LTS 64bit</div><div class=3D"">Guest : =
Alpine-vanilla-3.7.0-x86(kernel version 4.9.65) &nbsp;in qemu</div><div =
class=3D""><br class=3D""></div><div class=3D"">It looks like there is =
no build environment for a kernel module natively in Alpine, so I tried =
to use cross-compiler to build it in the host.</div><div class=3D"">I =
first get an i686-linux-musl-gcc cross-compiler from &nbsp;<a =
href=3D"https://github.com/richfelker/musl-cross-make" =
class=3D"">https://github.com/richfelker/musl-cross-make</a>&nbsp; =
&nbsp;. It works fine since a compiled Hello_World.c runs perfectly in =
the guest.</div><div class=3D"">Right now, I'm trying to build a kernel =
module hello_kernel.c. I download linux kernel 4.9.65 first from <a =
href=3D"http://kernel.org" class=3D"">kernel.org</a>&nbsp;(e.g. in =
/home/yuxing/linux 4.9.65 ), and compile it with the cross-compiler =
mentioned above. Next, I use &nbsp;the build environment in =
/home/yuxing/linux 4.9.65 &nbsp;with the cross compiler to build the =
hello_kernel.ko . It looks fine since no errors come out.</div><div =
class=3D"">But when I insmod hello_kernel.ko in Alpine, the =
error</div><div class=3D""><br class=3D""></div><div class=3D"">Can =
someone please give me some advices to figure this problem or how to =
build a kernel module for Alpine. Thanks in advance.</div><div =
class=3D""><br class=3D""></div><div class=3D"">Regards,</div><div =
class=3D"">Yuxing</div><div class=3D""><br class=3D""></div><div =
class=3D""><br class=3D""></div></body></html>=

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