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TinkerBoard / debian_kernel

Debian Kernel source for Tinker Board
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Build debian_kernel fails #56

Closed sv1eia closed 3 years ago

sv1eia commented 3 years ago

Hi, Using Ubuntu Focal virtual machine for all Linux compiles and trying to build the Tinkerboard debian_kernel following these https://tinker-board.asus.com/doc_tb.html#os/ and https://tinkerboarding.co.uk/wiki/index....ource_code

but it fails upon execution of make zImage ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf-

CC arch/arm/kernel/perf_callchain.o CC arch/arm/kernel/perf_event_xscale.o CC arch/arm/kernel/perf_event_v6.o CC arch/arm/kernel/perf_event_v7.o CC arch/arm/kernel/topology.o CC arch/arm/kernel/vdso.o arch/arm/kernel/vdso.c: In function ‘vdso_init’: arch/arm/kernel/vdso.c:182:6: warning: ‘memcmp’ reading 4 bytes from a region of size 1 [-Wstringop-overflow=] error, forbidden warning: vdso.c:182 make[1]: [scripts/Makefile.build:278: arch/arm/kernel/vdso.o] Error 1 make: [Makefile:1028: arch/arm/kernel] Error 2

christos@ubuntu:~/tinkerboard/debian_u-boot$ uname -a

Linux ubuntu 5.8.0-44-generic #50~20.04.1-Ubuntu SMP Wed Feb 10 21:07:30 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux

Are there any specific instructions on what prerequisites are needed, on what platform and how to build the debian_kernel ?

asus-leslieyu commented 3 years ago

There are issues to build with Ubuntu Focal. Please use the following Docker environment to build with Ubuntu Xenial. Thanks a lot!

https://github.com/asus-iot/asus-docker-env

sv1eia commented 3 years ago

Installed docker in Focal and followed the instructions in https://github.com/asus-iot/asus-docker-env

When I tried a new compile inside the docker container got the same error

CC arch/arm/kernel/perf_event_xscale.o CC arch/arm/kernel/perf_event_v6.o CC arch/arm/kernel/perf_event_v7.o CC arch/arm/kernel/topology.o CC arch/arm/kernel/vdso.o arch/arm/kernel/vdso.c: In function 'vdso_init': arch/arm/kernel/vdso.c:182:6: warning: 'memcmp' reading 4 bytes from a region of size 1 [-Wstringop-overflow=] error, forbidden warning: vdso.c:182 make[1]: [scripts/Makefile.build:278: arch/arm/kernel/vdso.o] Error 1 make: [Makefile:1028: arch/arm/kernel] Error 2 christos@c36f5cb3ff41:/source/debian_kernel$

Is there any step by step guide on how to use the aforementioned docker environment in order to build the tinkerboard uboot and kernel?

asus-leslieyu commented 3 years ago

Hi,

Did you use the following command to change the Dockfile to the one from xenial? The default one is from focal. Please change it to from xenial for Tinker Board (S). Thanks a lot!

asus_docker_env_set_dockerfile ./xenial/Dockerfile

sv1eia commented 3 years ago

Ok, switched the docker container to xenial and now kernel compiles just fine. Thanks for the help.

asus-leslieyu commented 3 years ago

Yes, regardless the host is focal or not, need to use Dockerfile based on xenial since there are issues related to tool chains from focal with the source code.