Javier M. García López livens up kernel-labs with a brand new mini-howto about brings together Autotools (GNU build system) and Kbuild (Linux kernel build system).
You can download the example here:
helloWorldAutotoolsKbuild.tgz. The following is the tutorial README file content.
Example of using together autotools and Kbuilb -kernel build system-
With autotools you can build your user space program and with Kbuild system you can build you kernel module.
- LETS START
Just tar xzvf helloWorldAutotoolsKbuild.tgz
cd helloWorldAutotoolsKbuild
autoreconf --install
./configure
make
¡your are done!
now try
cd cProgram
./cProgram
or
cd sourceModule
insmod linuxKernelModule
Of course , your kernel must be configured to be able to compile the module and you must have autotools ... and a C compiler ,-) enjoy and i hope it helps.
- INTRO
This little Hello World shows how to use together autotools and Kbuild system, this is something that some people find when develop user space -daemons, ...- and kernel modules at the same time in the same proyect and need to glue it easilly.
- HOW DOES IT WORKS?
Well you must have at least some idea of what make, autotools and kbuild is to understand how it works.
But it just do the autotools stuff for the user space program and just link to the Kbuild system to build the kernel module.
- configure.ac
Must have and entry for the user space c code but it doesn't for the kernel module, because the Kbuild system do the work.
- Makefile.am -top level-
Must include the reference to the user space and kernel module.
- Kbuild
It's a simple Kbuild file with the simple , by hand, Makefile. Both are really easy thanks to Linus and folks.
- Makefile.am -user space program level-
It's a simple Makefile.am with the reference to the main.c source.
