#!/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 create_package() {	local pname="$1" pdir="$2" 	mkdir -m 755 -p "$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 -9 "$pdir/usr/share/doc/$pname/changelog.Debian"	sh -c "cd '$pdir'; find . -type f ! -path './DEBIAN/*' -printf '%P\0' \		| xargs -r0 md5sum > DEBIAN/md5sums" 	# Fix ownership and permissions	chown -R root:root "$pdir"	chmod -R go-w "$pdir"	# in case we are in a restrictive umask environment like 0077	chmod -R a+rX "$pdir" 	# Create the package	dpkg-gencontrol $forcearch -Vkernel:debarch="${debarch}" -p$pname -P"$pdir"	dpkg --build "$pdir" ..} set_debarch() {	# Attempt to find the correct Debian architecture	case "$UTS_MACHINE" in	i386|ia64|alpha)		debarch="$UTS_MACHINE" ;;	x86_64)		debarch=amd64 ;;	sparc*)		debarch=sparc ;;	s390*)		debarch=s390$(grep -q CONFIG_64BIT=y $KCONFIG_CONFIG && echo x || true) ;;	ppc*)		debarch=$(grep -q CPU_LITTLE_ENDIAN=y $KCONFIG_CONFIG && echo ppc64el || echo powerpc) ;;	parisc*)		debarch=hppa ;;	mips*)		debarch=mips$(grep -q CPU_LITTLE_ENDIAN=y $KCONFIG_CONFIG && echo el || true) ;;	aarch64|arm64)		debarch=arm64 ;;	arm*)		if grep -q CONFIG_AEABI=y $KCONFIG_CONFIG; then		    if grep -q CONFIG_VFP=y $KCONFIG_CONFIG; then			debarch=armhf		    else			debarch=armel		    fi		else		    debarch=arm		fi		;;	*)		debarch=$(dpkg --print-architecture)		echo "" >&2		echo "** ** **  WARNING  ** ** **" >&2		echo "" >&2		echo "Your architecture doesn't have it's equivalent" >&2		echo "Debian userspace architecture defined!" >&2		echo "Falling back to using your current userspace instead!" >&2		echo "Please add support for $UTS_MACHINE to ${0} ..." >&2		echo "" >&2	esac	if [ -n "$KBUILD_DEBARCH" ] ; then		debarch="$KBUILD_DEBARCH"	fi	forcearch="-DArchitecture=$debarch" } # Some variables and settings used throughout the scriptversion=$KERNELRELEASErevision=$(cat .version)if [ -n "$KDEB_PKGVERSION" ]; then	packageversion=$KDEB_PKGVERSIONelse	packageversion=$version-$revisionfisourcename=$KDEB_SOURCENAMEtmpdir="$objtree/debian/tmp"fwdir="$objtree/debian/fwtmp"kernel_headers_dir="$objtree/debian/hdrtmp"libc_headers_dir="$objtree/debian/headertmp"dbg_dir="$objtree/debian/dbgtmp"packagename=linux-image-$versionfwpackagename=linux-firmware-image-$versionkernel_headers_packagename=linux-headers-$versionlibc_headers_packagename=linux-libc-devdbg_packagename=$packagename-dbgdebarch=forcearch=set_debarch 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="$(grep -s '^CONFIG_DEBUG_INFO=y' $KCONFIG_CONFIG || true)" # Setup the directory structurerm -rf "$tmpdir" "$fwdir" "$kernel_headers_dir" "$libc_headers_dir" "$dbg_dir" $objtree/debian/filesmkdir -m 755 -p "$tmpdir/DEBIAN"mkdir -p "$tmpdir/lib" "$tmpdir/boot"mkdir -p "$fwdir/lib/firmware/$version/"mkdir -p "$kernel_headers_dir/lib/modules/$version/" # Build and install the kernelif [ "$ARCH" = "um" ] ; then	mkdir -p "$tmpdir/usr/lib/uml/modules/$version" "$tmpdir/usr/bin" "$tmpdir/usr/share/doc/$packagename"	$MAKE linux	cp System.map "$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"fi# Not all arches include the boot path in KBUILD_IMAGEif [ -e $KBUILD_IMAGE ]; then	cp $KBUILD_IMAGE "$tmpdir/$installed_image_path"else	cp arch/$ARCH/boot/$KBUILD_IMAGE "$tmpdir/$installed_image_path"fi if grep -q "^CONFIG_OF=y" $KCONFIG_CONFIG ; then	# Only some architectures with OF support have this target	if grep -q dtbs_install "${srctree}/arch/$SRCARCH/Makefile"; then		$MAKE KBUILD_SRC= INSTALL_DTBS_PATH="$tmpdir/usr/lib/$packagename" dtbs_install	fifi if grep -q '^CONFIG_MODULES=y' $KCONFIG_CONFIG ; then	INSTALL_MOD_PATH="$tmpdir" $MAKE KBUILD_SRC= modules_install	rm -f "$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		MODULE_SIG_ALL="$(grep -s '^CONFIG_MODULE_SIG_ALL=y' $KCONFIG_CONFIG || true)"		if [ -n "$MODULE_SIG_ALL" ]; then			INSTALL_MOD_PATH="$tmpdir" $MAKE KBUILD_SRC= modules_sign		fi	fifi if [ "$ARCH" != "um" ]; then	$MAKE headers_check KBUILD_SRC=	$MAKE headers_install KBUILD_SRC= INSTALL_HDR_PATH="$libc_headers_dir/usr"fi # 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}if grep -q '^CONFIG_BLK_DEV_INITRD=y' $KCONFIG_CONFIG; then	want_initrd=Yeselse	want_initrd=Nofifor script in postinst postrm preinst prerm ; do	mkdir -p "$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=$want_initrd test -d $debhookdir/$script.d && run-parts --arg="$version" --arg="/$installed_image_path" $debhookdir/$script.dexit 0EOF	chmod 755 "$tmpdir/DEBIAN/$script"done # Try to determine maintainer and email valuesif [ -n "$DEBEMAIL" ]; then       email=$DEBEMAILelif [ -n "$EMAIL" ]; then       email=$EMAILelse       email=$(id -nu)@$(hostname -f 2>/dev/null || hostname)fiif [ -n "$DEBFULLNAME" ]; then       name=$DEBFULLNAMEelif [ -n "$NAME" ]; then       name=$NAMEelse       name="Anonymous"fimaintainer="$name <$email>" # Try to determine distributionif [ -n "$KDEB_CHANGELOG_DIST" ]; then        distribution=$KDEB_CHANGELOG_DIST# In some cases lsb_release returns the codename as n/a, which breaks dpkg-parsechangelogelif distribution=$(lsb_release -cs 2>/dev/null) && [ -n "$distribution" ] && [ "$distribution" != "n/a" ]; then        : # nothing to do in this caseelse        distribution="unstable"        echo >&2 "Using default distribution of 'unstable' in the changelog"        echo >&2 "Install lsb-release or set \$KDEB_CHANGELOG_DIST explicitly"fi # Generate a simple changelog templatecat <<EOF > debian/changelog$sourcename ($packageversion) $distribution; urgency=low   * Custom built Linux kernel.  -- $maintainer  $(date -R)EOF # Generate copyright filecat <<EOF > debian/copyrightThis is a packacked upstream version of the Linux kernel. The sources may be found at most Linux ftp sites, including:ftp://ftp.kernel.org/pub/linux/kernel Copyright: 1991 - 2015 Linus Torvalds and others. The git repository for mainline kernel development is at:git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git     This program is free software; you can redistribute it and/or modify    it under the terms of the GNU General Public License as published by    the Free Software Foundation; version 2 dated June, 1991. On Debian GNU/Linux systems, the complete text of the GNU General PublicLicense version 2 can be found in \`/usr/share/common-licenses/GPL-2'.EOF  build_depends="bc, kmod, cpio " # Generate a control filecat <<EOF > debian/controlSource: $sourcenameSection: kernelPriority: optionalMaintainer: $maintainerBuild-Depends: $build_dependsStandards-Version: 3.8.4Homepage: http://www.kernel.org/EOF if [ "$ARCH" = "um" ]; then	cat <<EOF >> debian/control Package: $packagenameProvides: linux-image, linux-image-2.6, linux-modules-$versionArchitecture: anyDescription: User Mode Linux kernel, version $version User-mode Linux is a port of the Linux kernel to its own system call interface.  It provides a kind of virtual machine, which runs Linux as a user process under another Linux kernel.  This is useful for kernel development, sandboxes, jails, experimentation, and many other things. . This package contains the Linux kernel, modules and corresponding other files, version: $version.EOF else	cat <<EOF >> debian/control Package: $packagenameProvides: linux-image, linux-image-2.6, linux-modules-$versionSuggests: $fwpackagenameArchitecture: anyDescription: Linux kernel, version $version This package contains the Linux kernel, modules and corresponding other files, version: $version.EOF fi # Build kernel header package(cd $srctree; find . -name Makefile\* -o -name Kconfig\* -o -name \*.pl) > "$objtree/debian/hdrsrcfiles"(cd $srctree; find arch/*/include include scripts -type f) >> "$objtree/debian/hdrsrcfiles"(cd $srctree; find arch/$SRCARCH -name module.lds -o -name Kbuild.platforms -o -name Platform) >> "$objtree/debian/hdrsrcfiles"(cd $srctree; find $(find arch/$SRCARCH -name include -o -name scripts -type d) -type f) >> "$objtree/debian/hdrsrcfiles"if grep -q '^CONFIG_STACK_VALIDATION=y' $KCONFIG_CONFIG ; then	(cd $objtree; find tools/objtool -type f -executable) >> "$objtree/debian/hdrobjfiles"fi(cd $objtree; find arch/$SRCARCH/include Module.symvers include scripts -type f) >> "$objtree/debian/hdrobjfiles"if grep -q '^CONFIG_GCC_PLUGINS=y' $KCONFIG_CONFIG ; then	(cd $objtree; find scripts/gcc-plugins -name \*.so -o -name gcc-common.h) >> "$objtree/debian/hdrobjfiles"fidestdir=$kernel_headers_dir/usr/src/linux-headers-$versionmkdir -p "$destdir"(cd $srctree; tar -c -f - -T -) < "$objtree/debian/hdrsrcfiles" | (cd $destdir; tar -xf -)(cd $objtree; tar -c -f - -T -) < "$objtree/debian/hdrobjfiles" | (cd $destdir; tar -xf -)(cd $objtree; cp $KCONFIG_CONFIG $destdir/.config) # copy .config manually to be where it's expected to beln -sf "/usr/src/linux-headers-$version" "$kernel_headers_dir/lib/modules/$version/build"rm -f "$objtree/debian/hdrsrcfiles" "$objtree/debian/hdrobjfiles" cat <<EOF >> debian/control Package: $kernel_headers_packagenameProvides: linux-headers, linux-headers-2.6Architecture: anyDescription: Linux kernel headers for $KERNELRELEASE on \${kernel:debarch} This package provides kernel header files for $KERNELRELEASE on \${kernel:debarch} . This is useful for people who need to build external modulesEOF # Do we have firmware? Move it out of the way and build it into a package.if [ -e "$tmpdir/lib/firmware" ]; then	mv "$tmpdir/lib/firmware"/* "$fwdir/lib/firmware/$version/"	rmdir "$tmpdir/lib/firmware" 	cat <<EOF >> debian/control Package: $fwpackagenameArchitecture: allDescription: Linux kernel firmware, version $version This package contains firmware from the Linux kernel, version $version.EOF 	create_package "$fwpackagename" "$fwdir"fi cat <<EOF >> debian/control Package: $libc_headers_packagenameSection: develProvides: linux-kernel-headersArchitecture: anyDescription: Linux support headers for userspace development This package provides userspaces headers from the Linux kernel.  These headers are used by the installed headers for GNU glibc and other system libraries.EOF if [ "$ARCH" != "um" ]; then	create_package "$kernel_headers_packagename" "$kernel_headers_dir"	create_package "$libc_headers_packagename" "$libc_headers_dir"fi 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 	cat <<EOF >> debian/control Package: $dbg_packagenameSection: debugProvides: linux-debug, linux-debug-$versionArchitecture: anyDescription: Linux kernel debugging symbols for $version This package will come in handy if you need to debug the kernel. It provides all the necessary debug symbols for the kernel and its modules.EOF 	create_package "$dbg_packagename" "$dbg_dir"fi if [ "x$1" = "xdeb-pkg" ]then    cat <<EOF > debian/rules#!/usr/bin/make -f build:	\$(MAKE) binary-arch:	\$(MAKE) KDEB_SOURCENAME=${sourcename} KDEB_PKGVERSION=${packageversion} bindeb-pkg clean:	rm -rf debian/*tmp debian/files	mv debian/ debian.backup # debian/ might be cleaned away	\$(MAKE) clean	mv debian.backup debian binary: binary-archEOF	mv ${sourcename}.tar.gz ../${sourcename}_${version}.orig.tar.gz	tar caf ../${sourcename}_${packageversion}.debian.tar.gz debian/{copyright,rules,changelog,control}	dpkg-source -cdebian/control -ldebian/changelog --format="3.0 (custom)" --target-format="3.0 (quilt)" \		-b / ../${sourcename}_${version}.orig.tar.gz  ../${sourcename}_${packageversion}.debian.tar.gz	mv ${sourcename}_${packageversion}*dsc ..	dpkg-genchanges > ../${sourcename}_${packageversion}_${debarch}.changeselse	dpkg-genchanges -b > ../${sourcename}_${packageversion}_${debarch}.changesfi exit 0