How to build kernel/module prebuilt for Android build

• Init repo:

repo init -u https://github.com/EssentialOpenSource/kernel-manifest -b refs/tags/PPR1.180412.048

• Sync repo:

repo sync -j4 -c

• Download the latest Android NDK and extract it in a toolchain folder
• Download clang-4053586 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 PATH=`pwd`/toolchain/clang-4630689/bin:$PATH
export LD_LIBRARY_PATH=`pwd`/toolchain/clang-4630689/lib64:$LD_LIBRARY_PATH
export CLANG_TRIPLE=aarch64-linux-gnu-

• Build the kernel (For PH-1)

cd kernel
make CC=clang mata_defconfig
make CC=clang -j32

• Build the WiFi module

cd ../qcacld-3.0/
make CC=clang -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=clang mata_kasan_defconfig
make CC=clang -j32

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