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@xxxxxxxxxxxxxxxxxxx LUGA : http://www.luga.at _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
