Is it possible to develop linux kernel module in CLion? - c

Question

I want to develop some small linux kernel modules in CLion. For example, I want to compile these files:
stack.h:
#ifndef _LL_STACK_H
#define _LL_STACK_H
#include <linux/list.h>
typedef struct stack_entry {
struct list_head lh;
void *data;
} stack_entry_t;
stack_entry_t* create_stack_entry(void *data);
void delete_stack_entry(stack_entry_t *entry);
void stack_push(struct list_head *stack, stack_entry_t *entry);
stack_entry_t* stack_pop(struct list_head *stack);
#define stack_empty(stack) list_empty((stack))
#define STACK_DATA(stack_entry, data_ptr_type) \
((data_ptr_type)(stack_entry)->data)
#define STACK_DATA_RESET(stack_entry, new_data) \
do { \
(stack_entry)->data = new_data; \
} while(0)
#endif //_LL_STACK_H
main.c:
#include <stdio.h>
#include "stack.h"
int main() {
printf("hello");
return 0;
}
Is it possible to configure CMakeLists.txt to complete my task? I try to add some directories (linux, include, kernel), but I have no success.

Answer 1

Yes, It is. But you will need to write make file for building kernel module.
Update 1:
I recommend QtCreator for writing linux kernel module.
See my manual
Update 2:
I also recommend eclipse cdt.
See eclipse manual about how to prepare it for linux kernel.

Answer 2

The approach I use to spelunk the linux kernel via clion is:
create a compile_commands.json for the kernel using an intercepted build
use a ruby script to convert compile_commands.json into an clion friendly CMakeLists.txt
This allows for both code navigation and also a reasonable editing experience.
See for more details https://github.com/habemus-papadum/kernel-grok

Answer 3

If you are only talking about proper auto-suggestions but are fine with invoking "make" by yourself then check this demo setup: https://gitlab.com/phip1611/cmake-kernel-module
It's a simplified version of https://gitlab.com/christophacham/cmake-kernel-module/-/blob/master/CMakeLists.txt (I forked it).
I use it for both: out-of-tree kernel module development (standalone development) as well as in-tree development.
Always make sure to have latest kernel header files installed!
$ sudo apt install kernel-headers-$(uname -r)