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I want to further reduce the kernel and rootfs of the core-image-minimal build to adapt to our minimal application. The core-image-minimal build does not create a build directory and vmlinux so I cannot use ksize.py to examine it. Is there any solution for this?

Nguyễn Thanh Vũ
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1 Answers1

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You could try:

devtool modify linux-imx
devtool build linux-imx

The kernel could be something else than linux-imx

Go to the kernel build directory. I find it easier to look for the 'built-in.o' file than to remember the path.

cd build
find . -name 'built-in.o'
cd to something like tmp/work/.../linux-imx/../build

I think 'ksize.py' doesn't run well with python3.

python2 .../sources/poky/scripts/tiny/ksize.py
vermaete
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  • In the Dunfell release of yocto, ksize is working with Python3. But, it looks like (at least for the kernel I'm using) the built-in.o files are now renamed ot built-in.a. – vermaete May 05 '20 at 15:17