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How to build kernel/module prebuilt for Android build

  • Init repo:
repo init -u https://github.com/EssentialOpenSource/kernel-manifest -b refs/tags/QQ1A.200105.032
  • Sync repo:
repo sync -j4 -c
  • Download Android NDK r16b and extract it in a toolchain folder
  • Download clang-r377782d and extract it in the toolchain folder
  • Export global variables
export ARCH=arm64
export CROSS_COMPILE=`pwd`/toolchain/android-ndk-r16b/toolchains/aarch64-linux-android-4.9/prebuilt/linux-x86_64/bin/aarch64-linux-android-
# Build with CLANG
export CLANG_TRIPLE=aarch64-linux-gnu-
export CLANG_PREBUILT_BIN=`pwd`/toolchain/clang-r377782d/bin
export CC_CMD=${CLANG_PREBUILT_BIN}/clang
  • Build the kernel (For PH-1)
cd kernel
make CC=${CC_CMD} mata_defconfig
make CC=${CC_CMD} -j32
  • Build the WiFi module
cd ../qcacld-3.0/
make CC=${CC_CMD} -j32
${CROSS_COMPILE}strip --strip-debug wlan.ko
  • Use qcacld-3.0/wlan.ko and arch/arm64/boot/Image.gz-dtb as prebuilt for your Android boot image

Build Essential PH-1 kernel with KASAN/KCOV support

To allow KASAN testing and fuzzing (like with syzkaller), you can compile PH-1 kernel with mata_kasan_defconfig

cd kernel
make CC=${CC_CMD} mata_kasan_defconfig
make CC=${CC_CMD} -j32

KCOV, KASAN and additional debug configuration flags (like kernel memory leak detector) are enabled