scripts/package/builddeb - third_party/kernel - Git at Google


            
            #!/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-};;

            
            	esac

            
            done


            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;;

            
            	esac

            
            done


            exit 0
	#!/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-};;
	esac
	done

	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;;
	esac
	done

	exit 0