#!/bin/sh## builddeb 1.3# Copyright 2003 Wichert Akkerman <wichert@wiggy.net>## Simple script to generate a deb package for a Linux kernel. All the# complexity of what to do with a kernel after it is installed or removed# is left to other scripts and packages: they can install scripts in the# /etc/kernel/{pre,post}{inst,rm}.d/ directories (or an alternative location# specified in KDEB_HOOKDIR) that will be called on package install and# removal. set -e is_enabled() {	grep -q "^$1=y" include/config/auto.conf} if_enabled_echo() {	if is_enabled "$1"; then		echo -n "$2"	elif [ $# -ge 3 ]; then		echo -n "$3"	fi} create_package() {	local pname="$1" pdir="$2"	local dpkg_deb_opts 	mkdir -m 755 -p "$pdir/DEBIAN"	mkdir -p "$pdir/usr/share/doc/$pname"	cp debian/copyright "$pdir/usr/share/doc/$pname/"	cp debian/changelog "$pdir/usr/share/doc/$pname/changelog.Debian"	gzip -n -9 "$pdir/usr/share/doc/$pname/changelog.Debian"	sh -c "cd '$pdir'; find . -type f ! -path './DEBIAN/*' -printf '%P\0' \		| xargs -r0 md5sum > DEBIAN/md5sums" 	# Fix ownership and permissions	if [ "$DEB_RULES_REQUIRES_ROOT" = "no" ]; then		dpkg_deb_opts="--root-owner-group"	else		chown -R root:root "$pdir"	fi	# a+rX in case we are in a restrictive umask environment like 0077	# ug-s in case we build in a setuid/setgid directory	chmod -R go-w,a+rX,ug-s "$pdir" 	# Create the package	dpkg-gencontrol -p$pname -P"$pdir"	dpkg-deb $dpkg_deb_opts ${KDEB_COMPRESS:+-Z$KDEB_COMPRESS} --build "$pdir" ..} install_linux_image () {	pdir=$1	pname=$2 	rm -rf ${pdir} 	# Only some architectures with OF support have this target	if is_enabled CONFIG_OF_EARLY_FLATTREE && [ -d "${srctree}/arch/${SRCARCH}/boot/dts" ]; then		${MAKE} -f ${srctree}/Makefile INSTALL_DTBS_PATH="${pdir}/usr/lib/linux-image-${KERNELRELEASE}" dtbs_install	fi 	${MAKE} -f ${srctree}/Makefile INSTALL_MOD_PATH="${pdir}" modules_install	rm -f "${pdir}/lib/modules/${KERNELRELEASE}/build" 	# Install the kernel	if [ "${ARCH}" = um ] ; then		mkdir -p "${pdir}/usr/lib/uml/modules"		mv "${pdir}/lib/modules/${KERNELRELEASE}" "${pdir}/usr/lib/uml/modules/${KERNELRELEASE}"		mkdir -p "${pdir}/usr/bin" "${pdir}/usr/share/doc/${pname}"		cp System.map "${pdir}/usr/lib/uml/modules/${KERNELRELEASE}/System.map"		cp ${KCONFIG_CONFIG} "${pdir}/usr/share/doc/${pname}/config"		gzip "${pdir}/usr/share/doc/${pname}/config"	else		mkdir -p "${pdir}/boot"		cp System.map "${pdir}/boot/System.map-${KERNELRELEASE}"		cp ${KCONFIG_CONFIG} "${pdir}/boot/config-${KERNELRELEASE}"	fi 	# Not all arches have the same installed path in debian	# XXX: have each arch Makefile export a variable of the canonical image install	# path instead	case "${SRCARCH}" in	um)		installed_image_path="usr/bin/linux-${KERNELRELEASE}";;	parisc|mips|powerpc)		installed_image_path="boot/vmlinux-${KERNELRELEASE}";;	*)		installed_image_path="boot/vmlinuz-${KERNELRELEASE}";;	esac	cp "$(${MAKE} -s -f ${srctree}/Makefile image_name)" "${pdir}/${installed_image_path}" 	# Install the maintainer scripts	# Note: hook scripts under /etc/kernel are also executed by official Debian	# kernel packages, as well as kernel packages built using make-kpkg.	# make-kpkg sets $INITRD to indicate whether an initramfs is wanted, and	# so do we; recent versions of dracut and initramfs-tools will obey this.	debhookdir=${KDEB_HOOKDIR:-/etc/kernel}	for script in postinst postrm preinst prerm; do		mkdir -p "${pdir}${debhookdir}/${script}.d" 		mkdir -p "${pdir}/DEBIAN"		cat <<-EOF > "${pdir}/DEBIAN/${script}" 		#!/bin/sh 		set -e 		# Pass maintainer script parameters to hook scripts		export DEB_MAINT_PARAMS="\$*" 		# Tell initramfs builder whether it's wanted		export INITRD=$(if_enabled_echo CONFIG_BLK_DEV_INITRD Yes No) 		test -d ${debhookdir}/${script}.d && run-parts --arg="${KERNELRELEASE}" --arg="/${installed_image_path}" ${debhookdir}/${script}.d		exit 0		EOF		chmod 755 "${pdir}/DEBIAN/${script}"	done} install_linux_image_dbg () {	pdir=$1	image_pdir=$2 	rm -rf ${pdir} 	for module in $(find ${image_pdir}/lib/modules/ -name *.ko -printf '%P\n'); do		module=lib/modules/${module}		mkdir -p $(dirname ${pdir}/usr/lib/debug/${module})		# only keep debug symbols in the debug file		${OBJCOPY} --only-keep-debug ${image_pdir}/${module} ${pdir}/usr/lib/debug/${module}		# strip original module from debug symbols		${OBJCOPY} --strip-debug ${image_pdir}/${module}		# then add a link to those		${OBJCOPY} --add-gnu-debuglink=${pdir}/usr/lib/debug/${module} ${image_pdir}/${module}	done 	# re-sign stripped modules	if is_enabled CONFIG_MODULE_SIG_ALL; then		${MAKE} -f ${srctree}/Makefile INSTALL_MOD_PATH="${image_pdir}" modules_sign	fi 	# Build debug package	# Different tools want the image in different locations	# perf	mkdir -p ${pdir}/usr/lib/debug/lib/modules/${KERNELRELEASE}/	cp vmlinux ${pdir}/usr/lib/debug/lib/modules/${KERNELRELEASE}/	# systemtap	mkdir -p ${pdir}/usr/lib/debug/boot/	ln -s ../lib/modules/${KERNELRELEASE}/vmlinux ${pdir}/usr/lib/debug/boot/vmlinux-${KERNELRELEASE}	# kdump-tools	ln -s lib/modules/${KERNELRELEASE}/vmlinux ${pdir}/usr/lib/debug/vmlinux-${KERNELRELEASE}} install_kernel_headers () {	pdir=$1	version=$2 	rm -rf $pdir 	"${srctree}/scripts/package/install-extmod-build" "${pdir}/usr/src/linux-headers-${version}" 	mkdir -p $pdir/lib/modules/$version/	ln -s /usr/src/linux-headers-$version $pdir/lib/modules/$version/build} install_libc_headers () {	pdir=$1 	rm -rf $pdir 	$MAKE -f $srctree/Makefile headers	$MAKE -f $srctree/Makefile headers_install INSTALL_HDR_PATH=$pdir/usr 	# move asm headers to /usr/include/<libc-machine>/asm to match the structure	# used by Debian-based distros (to support multi-arch)	host_arch=$(dpkg-architecture -a$DEB_HOST_ARCH -qDEB_HOST_MULTIARCH)	mkdir $pdir/usr/include/$host_arch	mv $pdir/usr/include/asm $pdir/usr/include/$host_arch/} rm -f debian/files packages_enabled=$(dh_listpackages) for package in ${packages_enabled}do	case ${package} in	*-dbg)		# This must be done after linux-image, that is, we expect the		# debug package appears after linux-image in debian/control.		install_linux_image_dbg debian/linux-image-dbg debian/linux-image;;	linux-image-*|user-mode-linux-*)		install_linux_image debian/linux-image ${package};;	linux-libc-dev)		install_libc_headers debian/linux-libc-dev;;	linux-headers-*)		install_kernel_headers debian/linux-headers ${package#linux-headers-};;	esacdone for package in ${packages_enabled}do	case ${package} in	*-dbg)		create_package ${package} debian/linux-image-dbg;;	linux-image-*|user-mode-linux-*)		create_package ${package} debian/linux-image;;	linux-libc-dev)		create_package ${package} debian/linux-libc-dev;;	linux-headers-*)		create_package ${package} debian/linux-headers;;	esacdone exit 0