How to build KernelSU?
First, you should read the Android Official docs for kernel build:
This page is for GKI devices, if you use an old kernel, please refer how to integrate KernelSU for old kernel
Sync the kernel source code
repo init -u https://android.googlesource.com/kernel/manifest mv <kernel_manifest.xml> .repo/manifests repo init -m manifest.xml repo sync
<kernel_manifest.xml> is a manifest file which can determine a build uniquely, you can use the manifest to do a re-preducable build. You should download the manifest file from Google GKI release builds
Please check the official docs first.
For example, we need to build aarch64 kernel image:
LTO=thin BUILD_CONFIG=common/build.config.gki.aarch64 build/build.sh
Don't forget to add the
LTO=thin flag, otherwise the build may fail if your computer's memory is less then 24Gb.
Starting from Android 13, the kernel is built by
tools/bazel build --config=fast //common:kernel_aarch64_dist
Build Kernel with KernelSU
If you can build the kernel successfully, then build KernelSU is so easy, run this command in Kernel source root dir:
curl -LSs "https://raw.githubusercontent.com/tiann/KernelSU/main/kernel/setup.sh" | bash -
And then rebuild the kernel and you will get a kernel image with KernelSU!