X00TD.sh

#! /bin/bash

 # Script For Building Android arm64 Kernel
 #
 # Copyright (c) 2018-2020 Panchajanya1999 <rsk52959@gmail.com>
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
 #
 #      http://www.apache.org/licenses/LICENSE-2.0
 #
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #

#Kernel building script

# Function to show an informational message
msg() {
    echo -e "\e[1;32m$*\e[0m"
}

err() {
    echo -e "\e[1;41m$*\e[0m"
}

##------------------------------------------------------##
##----------Basic Informations, COMPULSORY--------------##

# The defult directory where the kernel should be placed
KERNEL_DIR=$PWD

# The name of the device for which the kernel is built
MODEL="Asus Zenfone Max Pro M1"

# The codename of the device
DEVICE="X00TD"

# The defconfig which should be used. Get it from config.gz from
# your device or check source
DEFCONFIG=electroperf_defconfig

# Show manufacturer info
MANUFACTURERINFO="ASUSTek Computer Inc."

# Specify compiler.
# 'clang' or 'clangxgcc' or 'gcc'
COMPILER=gcc
	if [ $COMPILER = "clang" ] || [ $COMPILER = "clangxgcc" ]
	then
		# install few necessary packages
		sudo apt-get -y install gcc llvm lld g++-multilib clang
	fi

# Kernel is LTO
LTO=1

# Clean source prior building. 1 is NO(default) | 0 is YES
INCREMENTAL=1

# Generate a full DEFCONFIG prior building. 1 is YES | 0 is NO(default)
DEF_REG=0

# Build dtbo.img (select this only if your source has support to building dtbo.img)
# 1 is YES | 0 is NO(default)
BUILD_DTBO=0

# Sign the zipfile
# 1 is YES | 0 is NO
SIGN=1
	if [ $SIGN = 1 ]
	then
		#Check for java
		if command -v java > /dev/null 2>&1; then
			SIGN=1
		else
			SIGN=0
		fi
	fi

# Debug purpose. Send logs on every successfull builds
# 1 is YES | 0 is NO(default)
LOG_DEBUG=0

##------------------------------------------------------##
##---------Do Not Touch Anything Beyond This------------##

# Check if we are using a dedicated CI ( Continuous Integration ), and
# set KBUILD_BUILD_VERSION and KBUILD_BUILD_HOST and CI_BRANCH

#Check Kernel Version
LINUXVER=$(make kernelversion)

# Set a commit head
COMMIT_HEAD=$(git log --oneline -1)

# Set Date
DATE=$(TZ=Asia/Kolkata date +"%Y-%m-%d")

#Now Its time for other stuffs like cloning, exporting, etc

 clone() {
	echo " "
	if [ $COMPILER = "clang" ]
	then
		msg "|| Cloning toolchain ||"
		git clone --depth=1 https://github.com/kdrag0n/proton-clang clang

	elif [ $COMPILER = "gcc" ]
	then
		msg "|| Cloning GCC ||"
		git clone https://github.com/mvaisakh/gcc-arm64.git gcc64 --depth=1
                git clone https://github.com/mvaisakh/gcc-arm.git gcc32 --depth=1
	elif [ $COMPILER = "clangxgcc" ]
	then
		msg "|| Cloning toolchain ||"
		git clone --depth=1 https://github.com/kdrag0n/proton-clang -b master clang

		msg "|| Cloning GCC ||"
		git clone https://github.com/mvaisakh/gcc-arm64.git gcc64 --depth=1
		git clone https://github.com/mvaisakh/gcc-arm.git gcc32 --depth=1
	fi

	# Toolchain Directory defaults to clang-llvm
		TC_DIR=$KERNEL_DIR/clang

	# GCC Directory
		GCC64_DIR=$KERNEL_DIR/gcc64
		GCC32_DIR=$KERNEL_DIR/gcc32

	msg "|| Cloning Anykernel ||"
        git clone https://github.com/ElectroPerf/AnyKernel3-X00TD.git -b ElectroPerf-R-Wifi AnyKernel3

	if [ $BUILD_DTBO = 1 ]
	then
		msg "|| Cloning libufdt ||"
		git clone https://android.googlesource.com/platform/system/libufdt "$KERNEL_DIR"/scripts/ufdt/libufdt
	fi
}

##------------------------------------------------------##

exports() {
	export KBUILD_BUILD_USER="ElectroPerf"
	export ARCH=arm64
	export SUBARCH=arm64

	if [ $COMPILER = "clang" ]
	then
		KBUILD_COMPILER_STRING=$("$TC_DIR"/bin/clang --version | head -n 1 | perl -pe 's/\(http.*?\)//gs' | sed -e 's/  */ /g' -e 's/[[:space:]]*$//')
		PATH=$TC_DIR/bin/:$PATH
	elif [ $COMPILER = "clangxgcc" ]
	then
		KBUILD_COMPILER_STRING=$("$TC_DIR"/bin/clang --version | head -n 1 | perl -pe 's/\(http.*?\)//gs' | sed -e 's/  */ /g' -e 's/[[:space:]]*$//')
		PATH=$TC_DIR/bin:$GCC64_DIR/bin:$GCC32_DIR/bin:/usr/bin:$PATH
	elif [ $COMPILER = "gcc" ]
	then
		KBUILD_COMPILER_STRING=$("$GCC64_DIR"/bin/aarch64-elf-gcc --version | head -n 1)
		PATH=$GCC64_DIR/bin/:$GCC32_DIR/bin/:/usr/bin:$PATH
	fi

	if [ $LTO = "1" ];then
		export LD=ld.lld
        export LD_LIBRARY_PATH=$TC_DIR/lib
	fi

	export PATH KBUILD_COMPILER_STRING
	PROCS=$(nproc --all)
	export PROCS
}

##----------------------------------------------------------##

# Function to replace defconfig versioning
setversioning() {
    # For staging branch
    KERNELNAME="ElectroPerf-$LINUXVER-LTO-R-WIFI-X00TD-v2.3-$DATE"
    # Export our new localversion and zipnames
    export KERNELNAME
    export ZIPNAME="$KERNELNAME.zip"
}

##--------------------------------------------------------------##

build_kernel() {
	if [ $INCREMENTAL = 0 ]
	then
		msg "|| Cleaning Sources ||"
		make clean && make mrproper && rm -rf out
	fi

	msg "|| Started Compilation ||"

	make O=out $DEFCONFIG
	if [ $DEF_REG = 1 ]
	then
		cp .config arch/arm64/configs/$DEFCONFIG
		git add arch/arm64/configs/$DEFCONFIG
		git commit -m "$DEFCONFIG: Regenerate
						This is an auto-generated commit"
	fi

	BUILD_START=$(date +"%s")

	if [ $COMPILER = "clang" ]
	then
		make -j"$PROCS" O=out \
				CROSS_COMPILE=aarch64-linux-gnu- \
				CROSS_COMPILE_ARM32=arm-linux-gnueabi- \
				CC=clang \
				AR=llvm-ar \
				OBJDUMP=llvm-objdump \
				STRIP=llvm-strip
	elif [ $COMPILER = "gcc" ]
	then
		make -j"$PROCS" O=out \
				CROSS_COMPILE_ARM32=arm-eabi- \
				CROSS_COMPILE=aarch64-elf- \
				AR=aarch64-elf-ar \
				OBJDUMP=aarch64-elf-objdump \
				STRIP=aarch64-elf-strip
	elif [ $COMPILER = "clangxgcc" ]
	then
		make -j"$PROCS"  O=out \
					CC=clang \
					CROSS_COMPILE=aarch64-linux-gnu- \
					CROSS_COMPILE_ARM32=arm-linux-gnueabi- \
					AR=llvm-ar \
					AS=llvm-as \
					NM=llvm-nm \
					STRIP=llvm-strip \
					OBJCOPY=llvm-objcopy \
					OBJDUMP=llvm-objdump \
					OBJSIZE=llvm-size \
					READELF=llvm-readelf \
					HOSTCC=clang \
					HOSTCXX=clang++ \
					HOSTAR=llvm-ar \
					CLANG_TRIPLE=aarch64-linux-gnu-
	fi

	BUILD_END=$(date +"%s")
	DIFF=$((BUILD_END - BUILD_START))

	if [ -f "$KERNEL_DIR"/out/arch/arm64/boot/Image.gz-dtb ]
	then
		msg "|| Kernel successfully compiled ||"
	elif ! [ -f $KERNEL_DIR/out/arch/arm64/boot/Image.gz-dtb ]
	then
		echo -e "Kernel compilation failed, See buildlog to fix errors"
	fi

	if [ $BUILD_DTBO = 1 ]
	then
		msg "|| Building DTBO ||"
		python2 "$KERNEL_DIR/scripts/ufdt/libufdt/utils/src/mkdtboimg.py" \
			create "$KERNEL_DIR/out/arch/arm64/boot/dtbo.img" --page_size=4096 "$KERNEL_DIR/out/arch/arm64/boot/dts/qcom/sm6150-idp-overlay.dtbo"
	fi
}

##--------------------------------------------------------------##

gen_zip() {
	msg "|| Zipping into a flashable zip ||"
	mv "$KERNEL_DIR"/out/arch/arm64/boot/Image.gz-dtb AnyKernel3/Image.gz-dtb
	if [ $BUILD_DTBO = 1 ]
	then
		mv "$KERNEL_DIR"/out/arch/arm64/boot/dtbo.img AnyKernel3/dtbo.img
	fi
	cd AnyKernel3 || exit
	cp -af "$KERNEL_DIR"/init.ElectroSpectrum.rc init.spectrum.rc && sed -i "s/persist.spectrum.kernel.*/persist.spectrum.kernel ElectroPerf-LTO-R-WIFI-v2.3/g" init.spectrum.rc
        cp -af anykernel-real.sh anykernel.sh
	sed -i "s/kernel.string=.*/kernel.string=ElectroPerf-R-CAF-STABLE/g" anykernel.sh
	sed -i "s/kernel.for=.*/kernel.for=R-WIFI/g" anykernel.sh
	sed -i "s/kernel.compiler=.*/kernel.compiler=EVA-GCC/g" anykernel.sh
	sed -i "s/kernel.made=.*/kernel.made=Kunmun @ElectroPerf/g" anykernel.sh
	sed -i "s/kernel.version=.*/kernel.version=$LINUXVER/g" anykernel.sh
	sed -i "s/message.word=.*/message.word=Appreciate your efforts for choosing ElectroPerf kernel./g" anykernel.sh
	sed -i "s/build.date=.*/build.date=$DATE/g" anykernel.sh


	zip -r9 "$ZIPNAME" * -x .git README.md anykernel-real.sh .gitignore *.zip

	## Prepare a final zip variable
	ZIP_FINAL="$ZIPNAME"


	if [ $SIGN = 1 ]
	then
		## Sign the zip before sending it to telegram
		if [ "$PTTG" = 1 ]
 		then
 			msg "|| Signing Zip ||"
			tg_post_msg "<code>Signing Zip file with AOSP keys..</code>"
 		fi
		java -jar zipsigner-3.0.jar "$KERNELNAME".zip "$KERNELNAME"-signed.zip
		ZIP_FINAL="$ZIP_FINAL-signed"
	fi

	cd ..
}

setversioning
clone
exports
build_kernel
gen_zip

##------------------------------------------------------------------##