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build.sh
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build.sh
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#!/bin/bash
# NetHunter kernel for Samsung MSM8974 devices build script by jcadduono
# This build script is for LineageOS only
################### BEFORE STARTING ################
#
# download a working toolchain and extract it somewhere and configure this
# file to point to the toolchain's root directory.
# I highly recommend using a Linaro GCC 4.9.x arm-linux-gnueabihf toolchain.
# Download it here:
# https://releases.linaro.org/components/toolchain/binaries/4.9.4-2017.01/arm-linux-gnueabihf/
#
# once you've set up the config section how you like it, you can simply run
# ./build.sh
#
################ DEVICES & VARIANTS ################
#
#### klte (Samsung Galaxy S5)
#
# xx = kltexx, klteacg, klteatt, kltecan, kltelra, kltetmo, klteub, klteusc, kltevzw
# SM-G900F, SM-G900R7, SM-G900A, SM-G900W8, SM-G900R6, SM-G900T, SM-G900M, SM-G900R4, SM-G900V
#
# spr = kltespr, kltedv
# SM-G900P, SM-G900I
#
# duos = klteduosxx, klteduosub
# SM-G900FD, SM-G900MD
#
# chn = kltezn, kltezm
# SM-G9006V, SM-G9008V
#
# chnduo = klteduoszn, klteduoszm, klteduosctc
# SM-G9006W, SM-G9008W, SM-G9009W
#
# kdi = kltekdi, kltedcm
# SCL23, SC-04F
#
# kor = kltektt, klteskt, kltelgt
# SM-G900K, SM-G900S, SM-G900L
#
###################### CONFIG ######################
# root directory of NetHunter Samsung MSM8974 git repo (default is this script's location)
RDIR=$(pwd)
[ "$VER" ] ||
# version number
VER=$(cat "$RDIR/VERSION")
# directory containing cross-compile arm toolchain
TOOLCHAIN=$HOME/build/toolchain/gcc-linaro-4.9.4-2017.01-x86_64_arm-linux-gnueabihf
CPU_THREADS=$(grep -c "processor" /proc/cpuinfo)
# amount of cpu threads to use in kernel make process
THREADS=$((CPU_THREADS + 1))
############## SCARY NO-TOUCHY STUFF ###############
ABORT() {
[ "$1" ] && echo "Error: $*"
exit 1
}
CONTINUE=false
export ARCH=arm
export CROSS_COMPILE=$TOOLCHAIN/bin/arm-linux-gnueabihf-
[ -x "${CROSS_COMPILE}gcc" ] ||
ABORT "Unable to find gcc cross-compiler at location: ${CROSS_COMPILE}gcc"
while [ $# != 0 ]; do
if [ "$1" = "--continue" ] || [ "$1" == "-c" ]; then
CONTINUE=true
elif [ ! "$DEVICE" ]; then
DEVICE=$1
elif [ ! "$VARIANT" ]; then
VARIANT=$1
elif [ ! "$TARGET" ]; then
TARGET=$1
else
echo "Too many arguments!"
echo "Usage: ./build.sh [--continue] [device] [variant] [target defconfig]"
ABORT
fi
shift
done
[ "$DEVICE" ] || DEVICE=klte
[ "$VARIANT" ] || VARIANT=xx
[ "$TARGET" ] || TARGET=nethunter
DEFCONFIG=${TARGET}_${DEVICE}_defconfig
VARIANT_DEFCONFIG=variant_${DEVICE}_${VARIANT}
[ -f "$RDIR/arch/$ARCH/configs/${DEFCONFIG}" ] ||
ABORT "Device config $DEFCONFIG not found in $ARCH configs!"
[ -f "$RDIR/arch/$ARCH/configs/$VARIANT_DEFCONFIG" ] ||
ABORT "Device variant/carrier $VARIANT_DEFCONFIG not found in $ARCH configs!"
export LOCALVERSION="$TARGET-$DEVICE-$VARIANT-$VER"
CLEAN_BUILD() {
echo "Cleaning build..."
rm -rf build
}
SETUP_BUILD() {
echo "Creating kernel config for $LOCALVERSION..."
mkdir -p build
make -C "$RDIR" O=build "$DEFCONFIG" \
VARIANT_DEFCONFIG="$VARIANT_DEFCONFIG" \
|| ABORT "Failed to set up build!"
}
BUILD_KERNEL() {
echo "Starting build for $LOCALVERSION..."
while ! make -C "$RDIR" O=build -j"$THREADS" CONFIG_NO_ERROR_ON_MISMATCH=y; do
read -rp "Build failed. Retry? " do_retry
case $do_retry in
Y|y) continue ;;
*) return 1 ;;
esac
done
}
BUILD_DTB()
{
echo "Generating dtb.img..."
build/scripts/dtbtool/dtbtool -p build/scripts/dtc/ \
-s 2048 -o "build/arch/$ARCH/boot/dtb.img" \
"build/arch/$ARCH/boot/" \
|| ABORT "Failed to generate dtb.img!"
}
INSTALL_MODULES() {
grep -q 'CONFIG_MODULES=y' build/.config || return 0
echo "Installing kernel modules to build/lib/modules..."
while ! make -C "$RDIR" O=build \
INSTALL_MOD_PATH="." \
INSTALL_MOD_STRIP=1 \
modules_install
do
read -rp "Build failed. Retry? " do_retry
case $do_retry in
Y|y) continue ;;
*) return 1 ;;
esac
done
rm build/lib/modules/*/build build/lib/modules/*/source
}
cd "$RDIR" || ABORT "Failed to enter $RDIR!"
if ! $CONTINUE; then
CLEAN_BUILD
SETUP_BUILD ||
ABORT "Failed to set up build!"
fi
BUILD_KERNEL &&
BUILD_DTB &&
INSTALL_MODULES &&
echo "Finished building $LOCALVERSION!"