build.sh

#!/bin/bash

SECONDS=0 # builtin bash timer
ZIPNAME="Lightning.Kernel_$(TZ=Europe/Istanbul date +"%Y%m%d-%H%M").zip"
TC_DIR="$HOME/tc/r498229b"
GCC_64_DIR="$HOME/tc/aarch64-linux-android-4.9"
GCC_32_DIR="$HOME/tc/arm-linux-androideabi-4.9"
AK3_DIR="$HOME/android/AnyKernel3"
DEFCONFIG="vendor/ginkgo-perf_defconfig"
KSU=false

export PATH="$TC_DIR/bin:$PATH"
export KBUILD_BUILD_USER="siimsek"
export KBUILD_BUILD_HOST="linux"
export KBUILD_BUILD_VERSION="1"

if ! [ -d "${TC_DIR}" ]; then
echo "Clang not found! Cloning to ${TC_DIR}..."
if ! git clone --depth=1 https://gitlab.com/prebuilts_clang_host_linux-x86/clang-r498229b.git ${TC_DIR}; then
echo "Cloning failed! Aborting..."
exit 1
fi
fi

if ! [ -d "${GCC_64_DIR}" ]; then
echo "gcc not found! Cloning to ${GCC_64_DIR}..."
if ! git clone --depth=1 -b lineage-19.1 https://github.com/LineageOS/android_prebuilts_gcc_linux-x86_aarch64_aarch64-linux-android-4.9.git ${GCC_64_DIR}; then
echo "Cloning failed! Aborting..."
exit 1
fi
fi

if ! [ -d "${GCC_32_DIR}" ]; then
echo "gcc_32 not found! Cloning to ${GCC_32_DIR}..."
if ! git clone --depth=1 -b lineage-19.1 https://github.com/LineageOS/android_prebuilts_gcc_linux-x86_arm_arm-linux-androideabi-4.9.git ${GCC_32_DIR}; then
echo "Cloning failed! Aborting..."
exit 1
fi
fi

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

if [ "$KSU" = true ]; then
sed -i 's/CONFIG_LOCALVERSION="\(.*\)"/CONFIG_LOCALVERSION="\1-KSU"/' arch/arm64/configs/$DEFCONFIG
sed -i 's/CONFIG_KSU=n/CONFIG_KSU=y/' arch/arm64/configs/$DEFCONFIG
ZIPNAME="Lightning.Kernel_$(TZ=Europe/Istanbul date +"%Y%m%d-%H%M")_KSU.zip"
fi

mkdir -p out
make O=out ARCH=arm64 $DEFCONFIG

echo -e "\nStarting compilation...\n"
make -j$(nproc --all) O=out ARCH=arm64 CC=clang LD=ld.lld AR=llvm-ar AS=llvm-as NM=llvm-nm OBJCOPY=llvm-objcopy OBJDUMP=llvm-objdump STRIP=llvm-strip CROSS_COMPILE=$GCC_64_DIR/bin/aarch64-linux-android- CROSS_COMPILE_ARM32=$GCC_32_DIR/bin/arm-linux-androideabi- CLANG_TRIPLE=aarch64-linux-gnu- Image.gz-dtb dtbo.img
sed -i 's/CONFIG_LOCALVERSION="\(.*\)-KSU"/CONFIG_LOCALVERSION="\1"/' arch/arm64/configs/$DEFCONFIG
sed -i 's/CONFIG_KSU=y/CONFIG_KSU=n/' arch/arm64/configs/$DEFCONFIG

if [ -f "out/arch/arm64/boot/Image.gz-dtb" ] && [ -f "out/arch/arm64/boot/dtbo.img" ]; then
echo -e "\nKernel compiled succesfully! Zipping up...\n"
if [ -d "$AK3_DIR" ]; then
cp -r $AK3_DIR AnyKernel3
elif ! git clone -q https://github.com/siimsek/AnyKernel3; then
echo -e "\nAnyKernel3 repo not found locally and cloning failed! Aborting..."
exit 1
fi
cp out/arch/arm64/boot/Image.gz-dtb AnyKernel3
cp out/arch/arm64/boot/dtbo.img AnyKernel3
rm -f *zip
cd AnyKernel3
git checkout ginkgo &> /dev/null
zip -r9 "../$ZIPNAME" * -x '*.git*' README.md *placeholder
cd ..
rm -rf AnyKernel3
rm -rf out/arch/arm64/boot
echo -e "\nCompleted in $((SECONDS / 60)) minute(s) and $((SECONDS % 60)) second(s) !"
echo "Zip: $ZIPNAME"
echo "----------------------------------"
rm -rf KernelSU 
else
echo -e "\nCompilation failed!"
exit 1
fi