Kernel Build Action for Lancelot & Merlin

Powered By GitHub Actions

A workflow to automatically build an Android kernel

Usage Guide

Note

You will need a GitHub account.

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Options Guide

Note

All options are located in config.env

Base section options	Optional	Description	Example value
KERNEL_SOURCE	❌	Link to kernel repository	https://github.com/Jbub5/android_kernel_xiaomi_mt6768
KERNEL_SOURCE_BRANCH	❌	Branch name of kernel repository	kernel-tree
KERNEL_ARCH	❌	The Linux kernel architecture	arm64
KERNEL_IMAGE_NAME	❌	Format of the kernel image for flashable AnyKernel3 zip	Image.gz-dtb

KernelSU section options	Optional	Description	Example value
ENABLE_KERNELSU	✅	Enables accounting for the KernelSU options written below	true
KERNELSU_SETUP_SOURCE	❌	Link to KernelSU setup script	https://raw.githubusercontent.com/tiann/KernelSU/main/kernel/setup.sh
KERNELSU_TAG	✅	Repository branch or tag of KernelSU	v1.0.1
ADD_KPROBES_CONFIG	✅	Apply patches kernel source code to support KernelSU installation via kprobe	false
KSU_HOOKS_PATCH	✅	Apply patches kernel source code to support KernelSU	false
KSU_REVERT	✅	Revert the commit that removed non-GKI kernel support	true

Important

KernelSU no longer supports non-GKI kernels after version v1.0.0. The last supported version is v0.9.5, please make sure to use the correct tag.

APatch section options	Optional	Description	Example value
ADD_APATCH_SUPPORT	✅	Add required configs for APatch and accounting for options written below	false
FIX_APATCH_OPENELA	✅	Apply fix for bmax121/APatch#400	false

Compiler section options	Optional	Description	Example value
USE_CLANG	✅	Enable Clang toolchain usage and accounting for options written below	true
CLANG_SOURCE	❌	Link to clang archive or repository	https://github.com/ZyCromerZ/Clang/releases/download/21.0.0git-20250415-release/Clang-21.0.0git-20250415.tar.gz
CLANG_BRANCH	✅	Branch name of clang repository	main
USE_GCC	✅	Enable GCC toolchain usage and accounting for options written below	false
USE_GCC_64	✅	Enable GCC 64-bit	true
GCC_64_SOURCE	❌	Link to GCC 64-bit archive or repository	https://snapshots.linaro.org/gnu-toolchain/14.0-2023.06-1/aarch64-linux-gnu/gcc-linaro-14.0.0-2023.06-x86_64_aarch64-linux-gnu.tar.xz
GCC_64_BRANCH	✅	Branch name of GCC 64-bit repository	main
USE_GCC_32	✅	Enable GCC 32-bit	true
GCC_32_SOURCE	❌	Link to GCC 32-bit archive or repository	https://snapshots.linaro.org/gnu-toolchain/14.0-2023.06-1/arm-linux-gnueabihf/gcc-linaro-14.0.0-2023.06-x86_64_arm-linux-gnueabihf.tar.xz
GCC_32_BRANCH	✅	Branch name of GCC 32-bit repository	main

Important

You can use only Clang or GCC, but not both at the same time.

Anykernel3 section options	Optional	Description	Example value
USE_ANYKERNEL3	✅	Enable creating flashable AnyKernel3 zip and accounting for options written below	true
ANYKERNEL3_SOURCE	❌	Link to AnyKernel3 source	https://github.com/Jbub5/AnyKernel3.git
ANYKERNEL3_BRANCH	✅	Branch name of AnyKernel3 repository	proton

Build section options	Optional	Description	Example value
EXTRA_CMDS	✅	Additional compiler options	LLVM=1 LLVM_IAS=1 LD=ld.lld AS=llvm-as AR=llvm-ar NM=llvm-nm OBJCOPY=llvm-objcopy OBJDUMP=llvm-objdump READELF=llvm-readelf STRIP=llvm-strip CROSS_COMPILE=aarch64-linux-gnu- CROSS_COMPILE_ARM32=arm-linux-gnueabi- CROSS_COMPILE_COMPAT=arm-linux-gnueabi- CONFIG_NO_ERROR_ON_MISMATCH=y TARGET_BUILD_VARIANT=user
DISABLE_LTO	✅	LTO is used to optimize the kernel but sometimes causes errors	false
DISABLE_CC_WERROR	✅	Disable CONFIG_CC_WERROR	false
ENABLE_PYTHON2	✅	Many old kernels require python2 to build them	false
ENABLE_CCACHE	✅	Enable ccache	false
REMOVE_UNUSED_PACKAGES	✅	Remove unnecessary packages and free up more disk space for builder	false
NEED_DTBO	✅	Upload DTBO	false
BUILD_BOOT_IMG	✅	Repack boot.img by replacing the kernel in it with the compiled kernel	false
SOURCE_BOOT_IMAGE	✅	Link to the original boot.img for repackage it	https://raw.githubusercontent.com/xiaoleGun/KernelSU_action/main/boot/boot.img

Misc section options	Optional	Description	Example value
OLD_ANDROID_SUPPORT	✅	Enable support for MIUI 12.5 and custom ROMs based on Android 11 through 12	false
ADD_OVERLAYFS_CONFIG	✅	Automatically put the configs needed for OverlayFS into your defconfig	false

Important

Enabling OLD_ANDROID_SUPPORT breaks support for Android 13+.

Proton specific section options	Optional	Description	Example value
FIX_WIFI_SPEED	✅	Rollback to old connectivity drivers that have better Wi-Fi speed, but cause spontaneous reboots on some devices	false

Credits

• xiaoleGun for base
• dabao1955 for format of README.md