Build kernel driver with QTCreator

shawn_hsiao

Hi guys, I tried to build exist kernel driver through QTCreator, which is a Makefile project.
I load this project into the QTCreator and then build it.
But it encountered the mistake while building.

11:34:42: Running steps for project driver_test...
11:34:42: Starting: "/bin/make" -j40 all
make[1]: into directory「/home/」
make[2]: into directory「/home/drv」
-e ==> build customize.ko 64-bit........
make[3]: into directory「/usr/src/linux-headers-5.8.0-63-generic」
 CC [M]  /home/drv/main.o
 CC [M]  /home/drv/access.o
 CC [M]  /home/drv/su.o
/bin/sh: 1: cannot create /home/drv/.su.o.cmd: Permission denied
make[4]: *** [scripts/Makefile.build:286：/home/drv/su.o] fault 2
make[4]: *** deleting file「/home/shawn/drv/su.o」
make[4]: *** waiting uncompleted work....
/bin/sh: 1: cannot create /home/drv/.main.o.cmd: Permission denied
make[4]: *** [scripts/Makefile.build:286：/home/drv/main.o] fault 2
make[4]: *** deleting file「/home/drv/main.o」
/bin/sh: 1: cannot create /home/drv/.access.o.cmd: Permission denied
make[4]: *** [scripts/Makefile.build:286：/home/drv/access.o] fault 2
make[4]: *** deleting file「/home/drv/access.o」
make[3]: *** [Makefile:1785：/home/drv] fault 2
make[3]: leave directory「/usr/src/linux-headers-5.8.0-63-generic」
make[2]: *** [Makefile:65：all] fault 2
make[2]: leave directory「/home/drv」
make[1]: *** [Makefile:12：all] fault 2
make[1]: leave directory「/home/drv」
make: *** [Makefile:25：all] fault 2
11:34:43: The process "/bin/make" exited with code 2.
Error while building/deploying project driver_test (kit: desktop)
When executing step "Make"
11:34:43: Elapsed time: 00:01.

Have anyone know how to solve this problem?Thank

jsulm

@shawn_hsiao said in Build kernel driver with QTCreator:

cannot create /home/drv/.su.o.cmd: Permission denied

You apparently have no write access in /home/drv

shawn_hsiao

@jsulm thank you for quick reply.
I don't understand why have not write access .the directory has permission for anyone.
I can build this project in this directory through maketools and it compiled well.
I guess it may be that QTCreator dose not have write permission ,but I don't know how to do.

jsulm

@shawn_hsiao said in Build kernel driver with QTCreator:

I guess it may be that QTCreator dose not have write permission

QtCreator does not build anything itself, it simply calls make.
How exactly are the access rights set on /home/drv ?
Also, do the build files (like /home/drv/main.o) already exist and if they do how are the access rights set on these files?

shawn_hsiao

@jsulm Thank you for quick reply

You are right! The built files already exist in those directory ,I cleaned all the built files and then it compiled well.

thank your help!