Errors on building the Linux® kernel source code

[RWeng.1]

Hi, I got the result as below while I was building kernel images (uImage and vmlinux) and device tree (dtbs). Can anyone help me fix it?

$ make ARCH=arm uImage vmlinux dtbs LOADADDR=0xC2000040

 GEN   Makefile

 CALL  /home/rickweng/STM32MPU_workspace/STM32MP15-Ecosystem-v3.1.0/Developer-Package/stm32mp1-openstlinux-5.10-dunfell-mp1-21-11-17/sources/arm-ostl-linux-gnueabi/linux-stm32mp-5.10.61-stm32mp-r2-r0/linux-5.10.61/scripts/checksyscalls.sh

 CALL  /home/rickweng/STM32MPU_workspace/STM32MP15-Ecosystem-v3.1.0/Developer-Package/stm32mp1-openstlinux-5.10-dunfell-mp1-21-11-17/sources/arm-ostl-linux-gnueabi/linux-stm32mp-5.10.61-stm32mp-r2-r0/linux-5.10.61/scripts/atomic/check-atomics.sh

 CHK   include/generated/compile.h

make[3]: *** No rule to make target 'drivers/cpuidle/cpuidle-stm32.o', needed by 'drivers/cpuidle/built-in.a'. Stop.

I wonder why there's no rule to make target. I didn't do any modification and just followed the instructions in the README.HOW_TO.txt. Thanks for any help.

[Kevin HUBER]

Hello @RWeng.1​ ,

Be sure to have started the SDK in the console that you are using to build.

https://wiki.st.com/stm32mpu/wiki/Getting_started/STM32MP1_boards/STM32MP157x-DK2/Develop_on_Arm%C2%AE_Cortex%C2%AE-A7/Install_the_SDK#Start_the_SDK_up

You need it to be able to use the cross-development toolchain.

Best Regards,

Kevin

[RWeng.1]

Hi Kevin,

Thanks for your reply. I repeated the steps in the wiki pages as below. Are there still something I missed? I installed and ran them in Ubuntu 22.04.

~$ cd STM32MPU_workspace/STM32MP15-Ecosystem-v3.1.0/Developer-Package/

~/STM32MPU_workspace/STM32MP15-Ecosystem-v3.1.0/Developer-Package$ source SDK/environment-setup-cortexa7t2hf-neon-vfpv4-ostl-linux-gnueabi 

~/STM32MPU_workspace/STM32MP15-Ecosystem-v3.1.0/Developer-Package$ echo $ARCH

arm

~/STM32MPU_workspace/STM32MP15-Ecosystem-v3.1.0/Developer-Package$ echo $CROSS_COMPILE

arm-ostl-linux-gnueabi-

~/STM32MPU_workspace/STM32MP15-Ecosystem-v3.1.0/Developer-Package$ $CC --version

arm-ostl-linux-gnueabi-gcc (GCC) 11.2.0

Copyright (C) 2021 Free Software Foundation, Inc.

This is free software; see the source for copying conditions. There is NO

warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

~/STM32MPU_workspace/STM32MP15-Ecosystem-v3.1.0/Developer-Package$ echo $OECORE_SDK_VERSION

4.0.1-openstlinux-5.15-yocto-kirkstone-mp1-v22.06.15

Best Regards,

Rick

[Kevin HUBER]

Hi @RWeng.1​ ,

Seems good, do you still have an error? As explained in the PC Prerequisite page, the packages have been tested on Ubuntu 20.04, not on 22.04:

https://wiki.st.com/stm32mpu/wiki/PC_prerequisites#Recommended_PC_configurations

But I think it should also works.

You can also follow this page from the Getting Started than explains how to build the linux kernel source code:

https://wiki.st.com/stm32mpu/wiki/Getting_started/STM32MP1_boards/STM32MP157x-DK2/Develop_on_Arm%C2%AE_Cortex%C2%AE-A7/Modify,_rebuild_and_reload_the_Linux%C2%AE_kernel#Prepare_the_Linux-C2-AE_kernel_source_code

Just follow the steps and it should works

Best Regards,

Kevin

[Kevin HUBER]

Hello @RWeng.1​ ,

In your latest message, you have some errors related to the load of the modules of Kernel 5.15.24, but in your previous messages, you were using a Linux Kernel 5.10.61, so I think something is still wrong in your environment.

Please can you try again to follow the getting Started, but from scratch. Start with a clean environment, without your current developer package that seems to be a mix of two Ecosystem.

Best Regards,

Kevin

[RWeng.1]

Hi Kevin,

​

Sorry for late and thanks for your recommendation. I will try again.

​

Thanks and Best Regards,

Rick