github/linuxkit
1
0
Fork 0
mirror of https://github.com/linuxkit/linuxkit.git synced 2026-04-11 14:04:06 +00:00
Code Issues Projects Releases Wiki Activity

test: Add a simple test/example for compiling a kernel module

Browse Source 
The test is currently not hooked up, but it pulls the latest 4.9.x
kernel image, builds a simple kernel module against it and then creates
a test package containing the kernel module and a shell script.

The shell script prints out the 'modinfo' and then tries to 'insmod'
the module. It checks the output of 'dmesg' of the load succeeded.

Signed-off-by: Rolf Neugebauer <rolf.neugebauer@docker.com>
This commit is contained in:
Rolf Neugebauer
2017-05-03 12:09:30 +01:00
parent ffc0ed6a7c
commit 6cfadcd26e
6 changed files with 91 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
test/kmod/src/Makefile Normal file
View File

@@ -0,0 +1,6 @@
obj-m += hello_world.o
KVER=$(shell basename /usr/src/linux-headers-*)
all:
make -C /usr/src/$(KVER) M=$(PWD) modules
clean:
make -C /usr/src/$(KVER) M=$(PWD) clean

22
test/kmod/src/hello_world.c Normal file
View File

@@ -0,0 +1,22 @@
/*
* A simple Hello World kernel module
*/
#include <linux/module.h>
#include <linux/kernel.h>
int init_hello(void)
{
printk(KERN_INFO "Hello LinuxKit\n");
return 0;
}
void exit_hello(void)
{
printk(KERN_INFO "Goodbye LinuxKit.\n");
}
module_init(init_hello);
module_exit(exit_hello);
MODULE_AUTHOR("Rolf Neugebauer <rolf.neugebauer@docker.com>");
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("A simple Hello World kernel module for testing");