build-kernel-mainline.sh

#!/bin/bash
: "${LINUX_DIR:=src/linux}"
: "${VENDOR_DTS:=vendor-dts}"
: "${KEEP_SRC:=no}"
: "${LINUX_OUT:=prebuilt/linux}"
: "${CROSS_COMPILE:=aarch64-linux-gnu-}"
: "${BASE_CONFIG:=configs/minconfig-mainline}"
: "${CONFIGS:=configs/linux}"

: "${LINUX_GIT:=https://github.com/flipperdevices/flipper-linux-kernel.git}"
: "${LINUX_BRANCH:=flipper-devel}"

set -e

if [ -d "$LINUX_DIR" ]; then
	if [ x"$KEEP_SRC" = x"update" ]; then
		pushd "$LINUX_DIR"
		git pull
		popd
	elif [ x"$KEEP_SRC" = x"no" ]; then
		rm -rf "$LINUX_DIR"
	fi
fi

[ ! -d "$LINUX_DIR" ] && git clone --depth 1 -b "$LINUX_BRANCH" "$LINUX_GIT" "$LINUX_DIR"

BASE_CONFIG=`realpath "$BASE_CONFIG"`
CONFIGS=`realpath "$CONFIGS"/*`

KVER=`make -C "$LINUX_DIR" -s kernelversion`
magick flipper_linux_boot_logo_clean.ppm -font haxrcorp-4089-cyrillic-altgr.ttf -pointsize 31 -fill '#ff8200' -gravity SouthEast -annotate +0+0 "Flipper Linux Kernel $KVER" -compress none "$LINUX_DIR"/drivers/video/logo/flipper_linux_boot_logo_versioned.ppm

pushd "$LINUX_DIR"
make ARCH=arm64 CROSS_COMPILE="$CROSS_COMPILE" -j$(nproc) clean
./scripts/kconfig/merge_config.sh -m "$BASE_CONFIG" "$CONFIGS"
make ARCH=arm64 CROSS_COMPILE="$CROSS_COMPILE" -j$(nproc) olddefconfig
make ARCH=arm64 DTC_FLAGS="-@" CROSS_COMPILE="$CROSS_COMPILE" -j$(nproc) bindeb-pkg

rm -rf tar-install
make ARCH=arm64 CROSS_COMPILE="$CROSS_COMPILE" -j$(nproc) dir-pkg
pushd tar-install
tar czf ../modules.tar.gz ./lib
popd
popd

mkdir -p "$LINUX_OUT"/linux-mainline-files/dtbs
mv "$LINUX_DIR"/../linux-*.* "$LINUX_OUT"/
mv "$LINUX_DIR"/modules.tar.gz "$LINUX_OUT"/linux-mainline-files/
mv "$LINUX_DIR"/tar-install/boot/vmlinuz-* "$LINUX_OUT"/linux-mainline-files/vmlinuz
mv "$LINUX_DIR"/tar-install/boot/config-* "$LINUX_OUT"/linux-mainline-files/config
mv "$LINUX_DIR"/tar-install/boot/System.map-* "$LINUX_OUT"/linux-mainline-files/System.map
mv "$LINUX_DIR"/tar-install/boot/dtbs/*/rockchip "$LINUX_OUT"/linux-mainline-files/dtbs/