From: Bernd Petrovitsch <bernd@petrovitsch.priv.at>
To: "Irfan Ullah (울라 이르판)" <irfan@dke.khu.ac.kr>,
kernelnewbies@kernelnewbies.org
Subject: Re: Kernel Module with multiple source files not initializing
Date: Sun, 27 Oct 2019 09:43:32 +0100 [thread overview]
Message-ID: <eba9c990e8a43607cfe79aa64872640c3b16e038.camel@petrovitsch.priv.at> (raw)
In-Reply-To: <CA+mB8Oz1Hu82nk2vbinhpOQW8uasp7_b8CFNf2jNovqP==OH6A@mail.gmail.com>
Hi all!
On 25/10/2019 11:14, Irfan Ullah (울라 이르판) wrote:
> Dear All,
> I have developed a kernel module consists of one source file that sends
> and receives message to the user space. I have spitted the source code
> in two files, and now I am trying to develop kernel module from these
> source files. After compiling and linking without any problems, I insmod
> the module but I didn’t see any of the printk() I wrote, in fact, the
> module can be inserted and removed, but it does nothing. Code is in the
> attached file zipped file.
> I tried many things , e.g., link <https://paguilar.org/?p=7>1, link2
> <https://www.linuxquestions.org/questions/linux-kernel-70/kernel-module-with-multiple-source-files-not-initializing-886190/>;,
> and link3
> <https://android.googlesource.com/kernel/msm/+/android-msm-dory-3.10-kitkat-wear/Documentation/kbuild/modules.txt> etc.
> but nothings worked out.
> I also used /nm/ to inspect the module, but, as expected, there was no> signs of "__init and __exit" functions can in the output.
To be exact, you are looking for the hello_init function.
Since "nm" doesn't show it, it's either not there or
"static".
[ for the nm-output see in the OPs mail ]
> Can you please help me: what's the problem/mistake I am doing?
> Thank you very much.
Get rid of the "static" for the hello_init and hello_exit function.
MfG,
Bernd
--
Bernd Petrovitsch Email : bernd@petrovitsch.priv.at
LUGA : http://www.luga.at
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next prev parent reply other threads:[~2019-10-27 8:45 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-25 9:14 Kernel Module with multiple source files not initializing Irfan Ullah (울라 이르판)
2019-10-25 16:15 ` Abu Rasheda
2019-10-27 7:11 ` Irfan Ullah (울라 이르판)
2019-10-27 8:43 ` Bernd Petrovitsch [this message]
2019-10-28 9:43 ` Irfan Ullah (울라 이르판)
2019-10-28 10:04 ` Bernd Petrovitsch
2019-10-29 8:30 ` Irfan Ullah (울라 이르판)
2019-11-05 16:52 ` Aruna Hewapathirane
2019-11-07 1:50 ` Irfan Ullah (울라 이르판)
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