#!/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 "$pdir"	fi	chmod -R go-w "$pdir"	# in case we are in a restrictive umask environment like 0077	chmod -R a+rX "$pdir"	# in case we build in a setuid/setgid directory	chmod -R ug-s "$pdir" 	# Create the package	dpkg-gencontrol -p$pname -P"$pdir"	dpkg-deb $dpkg_deb_opts ${KDEB_COMPRESS:+-Z$KDEB_COMPRESS} --build "$pdir" ..} deploy_kernel_headers () {	pdir=$1 	rm -rf $pdir 	(		cd $srctree		find . arch/$SRCARCH -maxdepth 1 -name Makefile\*		find include scripts -type f -o -type l		find arch/$SRCARCH -name Kbuild.platforms -o -name Platform		find $(find arch/$SRCARCH -name include -o -name scripts -type d) -type f	) > debian/hdrsrcfiles 	{		if is_enabled CONFIG_STACK_VALIDATION; then			echo tools/objtool/objtool		fi 		find arch/$SRCARCH/include Module.symvers include scripts -type f 		if is_enabled CONFIG_GCC_PLUGINS; then			find scripts/gcc-plugins -name \*.so		fi	} > debian/hdrobjfiles 	destdir=$pdir/usr/src/linux-headers-$version	mkdir -p $destdir	tar -c -f - -C $srctree -T debian/hdrsrcfiles | tar -xf - -C $destdir	tar -c -f - -T debian/hdrobjfiles | tar -xf - -C $destdir	rm -f debian/hdrsrcfiles debian/hdrobjfiles 	# copy .config manually to be where it's expected to be	cp $KCONFIG_CONFIG $destdir/.config 	mkdir -p $pdir/lib/modules/$version/	ln -s /usr/src/linux-headers-$version $pdir/lib/modules/$version/build} deploy_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=$(dpkg-architecture -a$(cat debian/arch) -qDEB_HOST_MULTIARCH)	mkdir $pdir/usr/include/$host_arch	mv $pdir/usr/include/asm $pdir/usr/include/$host_arch/} version=$KERNELRELEASEtmpdir=debian/linux-imagedbg_dir=debian/linux-image-dbgpackagename=linux-image-$versiondbg_packagename=$packagename-dbg if [ "$ARCH" = "um" ] ; then	packagename=user-mode-linux-$versionfi # Not all arches have the same installed path in debian# XXX: have each arch Makefile export a variable of the canonical image install# path insteadcase $ARCH inum)	installed_image_path="usr/bin/linux-$version"	;;parisc|mips|powerpc)	installed_image_path="boot/vmlinux-$version"	;;*)	installed_image_path="boot/vmlinuz-$version"esac BUILD_DEBUG=$(if_enabled_echo CONFIG_DEBUG_INFO Yes) # Setup the directory structurerm -rf "$tmpdir" "$dbg_dir" debian/filesmkdir -m 755 -p "$tmpdir/DEBIAN"mkdir -p "$tmpdir/lib" "$tmpdir/boot" # Install the kernelif [ "$ARCH" = "um" ] ; then	mkdir -p "$tmpdir/usr/lib/uml/modules/$version" "$tmpdir/usr/bin" "$tmpdir/usr/share/doc/$packagename"	cp System.map "$tmpdir/usr/lib/uml/modules/$version/System.map"	cp $KCONFIG_CONFIG "$tmpdir/usr/share/doc/$packagename/config"	gzip "$tmpdir/usr/share/doc/$packagename/config"else	cp System.map "$tmpdir/boot/System.map-$version"	cp $KCONFIG_CONFIG "$tmpdir/boot/config-$version"ficp "$($MAKE -s -f $srctree/Makefile image_name)" "$tmpdir/$installed_image_path" if is_enabled CONFIG_OF_EARLY_FLATTREE; then	# Only some architectures with OF support have this target	if [ -d "${srctree}/arch/$SRCARCH/boot/dts" ]; then		$MAKE -f $srctree/Makefile INSTALL_DTBS_PATH="$tmpdir/usr/lib/$packagename" dtbs_install	fifi if is_enabled CONFIG_MODULES; then	INSTALL_MOD_PATH="$tmpdir" $MAKE -f $srctree/Makefile modules_install	rm -f "$tmpdir/lib/modules/$version/build"	rm -f "$tmpdir/lib/modules/$version/source"	if [ "$ARCH" = "um" ] ; then		mv "$tmpdir/lib/modules/$version"/* "$tmpdir/usr/lib/uml/modules/$version/"		rmdir "$tmpdir/lib/modules/$version"	fi	if [ -n "$BUILD_DEBUG" ] ; then		for module in $(find $tmpdir/lib/modules/ -name *.ko -printf '%P\n'); do			module=lib/modules/$module			mkdir -p $(dirname $dbg_dir/usr/lib/debug/$module)			# only keep debug symbols in the debug file			$OBJCOPY --only-keep-debug $tmpdir/$module $dbg_dir/usr/lib/debug/$module			# strip original module from debug symbols			$OBJCOPY --strip-debug $tmpdir/$module			# then add a link to those			$OBJCOPY --add-gnu-debuglink=$dbg_dir/usr/lib/debug/$module $tmpdir/$module		done 		# resign stripped modules		if is_enabled CONFIG_MODULE_SIG_ALL; then			INSTALL_MOD_PATH="$tmpdir" $MAKE -f $srctree/Makefile modules_sign		fi	fifi # 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 "$tmpdir$debhookdir/$script.d"	cat <<EOF > "$tmpdir/DEBIAN/$script"#!/bin/sh set -e # Pass maintainer script parameters to hook scriptsexport DEB_MAINT_PARAMS="\$*" # Tell initramfs builder whether it's wantedexport INITRD=$(if_enabled_echo CONFIG_BLK_DEV_INITRD Yes No) test -d $debhookdir/$script.d && run-parts --arg="$version" --arg="/$installed_image_path" $debhookdir/$script.dexit 0EOF	chmod 755 "$tmpdir/DEBIAN/$script"done if [ "$ARCH" != "um" ]; then	if is_enabled CONFIG_MODULES; then		deploy_kernel_headers debian/linux-headers		create_package linux-headers-$version debian/linux-headers	fi 	deploy_libc_headers debian/linux-libc-dev	create_package linux-libc-dev debian/linux-libc-devfi create_package "$packagename" "$tmpdir" if [ -n "$BUILD_DEBUG" ] ; then	# Build debug package	# Different tools want the image in different locations	# perf	mkdir -p $dbg_dir/usr/lib/debug/lib/modules/$version/	cp vmlinux $dbg_dir/usr/lib/debug/lib/modules/$version/	# systemtap	mkdir -p $dbg_dir/usr/lib/debug/boot/	ln -s ../lib/modules/$version/vmlinux $dbg_dir/usr/lib/debug/boot/vmlinux-$version	# kdump-tools	ln -s lib/modules/$version/vmlinux $dbg_dir/usr/lib/debug/vmlinux-$version	create_package "$dbg_packagename" "$dbg_dir"fi exit 0