#!/bin/sh
# SPDX-License-Identifier: GPL-2.0

#
# buildtar 0.0.5
#
# (C) 2004-2006 by Jan-Benedict Glaw <[email protected]>
#
# This script is used to compile a tarball from the currently
# prepared kernel. Based upon the builddeb script from
# Wichert Akkerman <[email protected]>.
#

set -eu

#
# Some variables and settings used throughout the script
#
tmpdir=$1

#
# Clean-up and re-create the temporary directory
#
rm -rf -- "${tmpdir}"
mkdir -p -- "${tmpdir}/boot"


#
# Try to install dtbs
#
if grep -q '^CONFIG_OF_EARLY_FLATTREE=y' include/config/auto.conf; then
	# Only some architectures with OF support have this target
	if [ -d "${srctree}/arch/${SRCARCH}/boot/dts" ]; then
		$MAKE ARCH="${ARCH}" -f ${srctree}/Makefile INSTALL_DTBS_PATH="${tmpdir}/boot/dtbs/${KERNELRELEASE}" dtbs_install
    fi
fi


#
# Install modules
#
make ARCH="${ARCH}" -f ${srctree}/Makefile INSTALL_MOD_PATH="${tmpdir}" modules_install


#
# Install basic kernel files
#
cp -v -- "${objtree}/System.map" "${tmpdir}/boot/System.map-${KERNELRELEASE}"
cp -v -- "${KCONFIG_CONFIG}" "${tmpdir}/boot/config-${KERNELRELEASE}"
cp -v -- "${objtree}/vmlinux" "${tmpdir}/boot/vmlinux-${KERNELRELEASE}"


#
# Install arch-specific kernel image(s)
#
# Note:
#   mips and arm64 copy the first image found. This may not produce the desired
#   outcome because it may pick up a stale file remaining in the build tree.
#
case "${ARCH}" in
	alpha)
		cp -v -- "${objtree}/arch/alpha/boot/vmlinux.gz" "${tmpdir}/boot/vmlinuz-${KERNELRELEASE}"
		;;
	parisc*)
		cp -v -- "${KBUILD_IMAGE}" "${tmpdir}/boot/vmlinux-${KERNELRELEASE}"
		[ -f "${objtree}/lifimage" ] && cp -v -- "${objtree}/lifimage" "${tmpdir}/boot/lifimage-${KERNELRELEASE}"
		;;
	mips)
		# Please note the following code may copy a stale file.
		if [ -f "${objtree}/arch/mips/boot/compressed/vmlinux.bin" ]; then
			cp -v -- "${objtree}/arch/mips/boot/compressed/vmlinux.bin" "${tmpdir}/boot/vmlinuz-${KERNELRELEASE}"
		elif [ -f "${objtree}/arch/mips/boot/compressed/vmlinux.ecoff" ]; then
			cp -v -- "${objtree}/arch/mips/boot/compressed/vmlinux.ecoff" "${tmpdir}/boot/vmlinuz-${KERNELRELEASE}"
		elif [ -f "${objtree}/arch/mips/boot/compressed/vmlinux.srec" ]; then
			cp -v -- "${objtree}/arch/mips/boot/compressed/vmlinux.srec" "${tmpdir}/boot/vmlinuz-${KERNELRELEASE}"
		elif [ -f "${objtree}/vmlinux.32" ]; then
			cp -v -- "${objtree}/vmlinux.32" "${tmpdir}/boot/vmlinux-${KERNELRELEASE}"
		elif [ -f "${objtree}/vmlinux.64" ]; then
			cp -v -- "${objtree}/vmlinux.64" "${tmpdir}/boot/vmlinux-${KERNELRELEASE}"
		elif [ -f "${objtree}/arch/mips/boot/vmlinux.bin" ]; then
			cp -v -- "${objtree}/arch/mips/boot/vmlinux.bin" "${tmpdir}/boot/vmlinux-${KERNELRELEASE}"
		elif [ -f "${objtree}/arch/mips/boot/vmlinux.ecoff" ]; then
			cp -v -- "${objtree}/arch/mips/boot/vmlinux.ecoff" "${tmpdir}/boot/vmlinux-${KERNELRELEASE}"
		elif [ -f "${objtree}/arch/mips/boot/vmlinux.srec" ]; then
			cp -v -- "${objtree}/arch/mips/boot/vmlinux.srec" "${tmpdir}/boot/vmlinux-${KERNELRELEASE}"
		elif [ -f "${objtree}/vmlinux" ]; then
			cp -v -- "${objtree}/vmlinux" "${tmpdir}/boot/vmlinux-${KERNELRELEASE}"
		fi
		;;
	arm64)
		# Please note the following code may copy a stale file.
		for i in Image.bz2 Image.gz Image.lz4 Image.lzma Image.lzo vmlinuz.efi ; do
			if [ -f "${objtree}/arch/arm64/boot/${i}" ] ; then
				cp -v -- "${objtree}/arch/arm64/boot/${i}" "${tmpdir}/boot/vmlinuz-${KERNELRELEASE}"
				break
			fi
		done
		;;
	riscv)
		case "${KBUILD_IMAGE##*/}" in
			Image.*|vmlinuz.efi)
				cp -v -- "${KBUILD_IMAGE}" "${tmpdir}/boot/vmlinuz-${KERNELRELEASE}";;
			*)
				cp -v -- "${KBUILD_IMAGE}" "${tmpdir}/boot/vmlinux-${KERNELRELEASE}";;
		esac
		;;
	*)
		cp -v -- "${KBUILD_IMAGE}" "${tmpdir}/boot/vmlinuz-${KERNELRELEASE}"
		;;
esac