How to build​

First, you should read the official Android documentation for kernel build:

1. Build kernels
2. GKI release builds

Build kernel​

Sync the kernel source code​

repo init -u https://android.googlesource.com/kernel/manifestmv <kernel_manifest.xml> .repo/manifestsrepo init -m manifest.xmlrepo sync

The<kernel_manifest.xml> file is a manifest that uniquely identifies a build, allowing you to make it reproducible. To do this, you should download the manifest file fromGKI release builds.

Build​

Please check theBuilding kernels first.

For example, to build anaarch64 kernel image:

LTO=thin BUILD_CONFIG=common/build.config.gki.aarch64 build/build.sh

Don't forget to add theLTO=thin flag; otherwise, the build may fail if your computer has less than 24 GB of memory.

Starting from Android 13, the kernel is built bybazel:

tools/bazel build --config=fast //common:kernel_aarch64_dist

rm common/android/abi_gki_protected_exports_*

Build kernel with KernelSU​

If you can successfully build the kernel, adding support for KernelSU will be relatively easy. In the root of kernel source directory, run any of the options listed below:

curl -LSs "https://raw.githubusercontent.com/tiann/KernelSU/main/kernel/setup.sh" | bash -

curl -LSs "https://raw.githubusercontent.com/tiann/KernelSU/main/kernel/setup.sh" | bash -s main

curl -LSs "https://raw.githubusercontent.com/tiann/KernelSU/main/kernel/setup.sh" | bash -s v0.5.2

Then, rebuild the kernel and you will get a kernel image with KernelSU!