4 # Copyright 2003 Wichert Akkerman <wichert@wiggy.net>
6 # Simple script to generate a deb package for a Linux kernel. All the
7 # complexity of what to do with a kernel after it is installed or removed
8 # is left to other scripts and packages: they can install scripts in the
9 # /etc/kernel/{pre,post}{inst,rm}.d/ directories (or an alternative location
10 # specified in KDEB_HOOKDIR) that will be called on package install and
16 grep -q "^$1=y" include/config/auto.conf
20 if is_enabled "$1"; then
22 elif [ $# -ge 3 ]; then
28 local pname="$1" pdir="$2"
31 mkdir -m 755 -p "$pdir/DEBIAN"
32 mkdir -p "$pdir/usr/share/doc/$pname"
33 cp debian/copyright "$pdir/usr/share/doc/$pname/"
34 cp debian/changelog "$pdir/usr/share/doc/$pname/changelog.Debian"
35 gzip -n -9 "$pdir/usr/share/doc/$pname/changelog.Debian"
36 sh -c "cd '$pdir'; find . -type f ! -path './DEBIAN/*' -printf '%P\0' \
37 | xargs -r0 md5sum > DEBIAN/md5sums"
39 # Fix ownership and permissions
40 if [ "$DEB_RULES_REQUIRES_ROOT" = "no" ]; then
41 dpkg_deb_opts="--root-owner-group"
43 chown -R root:root "$pdir"
45 # a+rX in case we are in a restrictive umask environment like 0077
46 # ug-s in case we build in a setuid/setgid directory
47 chmod -R go-w,a+rX,ug-s "$pdir"
50 dpkg-gencontrol -p$pname -P"$pdir"
51 dpkg-deb $dpkg_deb_opts ${KDEB_COMPRESS:+-Z$KDEB_COMPRESS} --build "$pdir" ..
54 install_linux_image () {
60 # Only some architectures with OF support have this target
61 if is_enabled CONFIG_OF_EARLY_FLATTREE && [ -d "${srctree}/arch/${SRCARCH}/boot/dts" ]; then
62 ${MAKE} -f ${srctree}/Makefile INSTALL_DTBS_PATH="${pdir}/usr/lib/linux-image-${KERNELRELEASE}" dtbs_install
65 if is_enabled CONFIG_MODULES; then
66 ${MAKE} -f ${srctree}/Makefile INSTALL_MOD_PATH="${pdir}" modules_install
67 rm -f "${pdir}/lib/modules/${KERNELRELEASE}/build"
68 rm -f "${pdir}/lib/modules/${KERNELRELEASE}/source"
69 if [ "${SRCARCH}" = um ] ; then
70 mkdir -p "${pdir}/usr/lib/uml/modules"
71 mv "${pdir}/lib/modules/${KERNELRELEASE}" "${pdir}/usr/lib/uml/modules/${KERNELRELEASE}"
76 if [ "${ARCH}" = um ] ; then
77 mkdir -p "${pdir}/usr/bin" "${pdir}/usr/share/doc/${pname}"
78 cp System.map "${pdir}/usr/lib/uml/modules/${KERNELRELEASE}/System.map"
79 cp ${KCONFIG_CONFIG} "${pdir}/usr/share/doc/${pname}/config"
80 gzip "${pdir}/usr/share/doc/${pname}/config"
82 mkdir -p "${pdir}/boot"
83 cp System.map "${pdir}/boot/System.map-${KERNELRELEASE}"
84 cp ${KCONFIG_CONFIG} "${pdir}/boot/config-${KERNELRELEASE}"
87 # Not all arches have the same installed path in debian
88 # XXX: have each arch Makefile export a variable of the canonical image install
92 installed_image_path="usr/bin/linux-${KERNELRELEASE}";;
94 installed_image_path="boot/vmlinux-${KERNELRELEASE}";;
96 installed_image_path="boot/vmlinuz-${KERNELRELEASE}";;
98 cp "$(${MAKE} -s -f ${srctree}/Makefile image_name)" "${pdir}/${installed_image_path}"
100 # Install the maintainer scripts
101 # Note: hook scripts under /etc/kernel are also executed by official Debian
102 # kernel packages, as well as kernel packages built using make-kpkg.
103 # make-kpkg sets $INITRD to indicate whether an initramfs is wanted, and
104 # so do we; recent versions of dracut and initramfs-tools will obey this.
105 debhookdir=${KDEB_HOOKDIR:-/etc/kernel}
106 for script in postinst postrm preinst prerm; do
107 mkdir -p "${pdir}${debhookdir}/${script}.d"
109 mkdir -p "${pdir}/DEBIAN"
110 cat <<-EOF > "${pdir}/DEBIAN/${script}"
116 # Pass maintainer script parameters to hook scripts
117 export DEB_MAINT_PARAMS="\$*"
119 # Tell initramfs builder whether it's wanted
120 export INITRD=$(if_enabled_echo CONFIG_BLK_DEV_INITRD Yes No)
122 test -d ${debhookdir}/${script}.d && run-parts --arg="${KERNELRELEASE}" --arg="/${installed_image_path}" ${debhookdir}/${script}.d
125 chmod 755 "${pdir}/DEBIAN/${script}"
129 install_linux_image_dbg () {
135 for module in $(find ${image_pdir}/lib/modules/ -name *.ko -printf '%P\n'); do
136 module=lib/modules/${module}
137 mkdir -p $(dirname ${pdir}/usr/lib/debug/${module})
138 # only keep debug symbols in the debug file
139 ${OBJCOPY} --only-keep-debug ${image_pdir}/${module} ${pdir}/usr/lib/debug/${module}
140 # strip original module from debug symbols
141 ${OBJCOPY} --strip-debug ${image_pdir}/${module}
142 # then add a link to those
143 ${OBJCOPY} --add-gnu-debuglink=${pdir}/usr/lib/debug/${module} ${image_pdir}/${module}
146 # re-sign stripped modules
147 if is_enabled CONFIG_MODULE_SIG_ALL; then
148 ${MAKE} -f ${srctree}/Makefile INSTALL_MOD_PATH="${image_pdir}" modules_sign
151 # Build debug package
152 # Different tools want the image in different locations
154 mkdir -p ${pdir}/usr/lib/debug/lib/modules/${KERNELRELEASE}/
155 cp vmlinux ${pdir}/usr/lib/debug/lib/modules/${KERNELRELEASE}/
157 mkdir -p ${pdir}/usr/lib/debug/boot/
158 ln -s ../lib/modules/${KERNELRELEASE}/vmlinux ${pdir}/usr/lib/debug/boot/vmlinux-${KERNELRELEASE}
160 ln -s lib/modules/${KERNELRELEASE}/vmlinux ${pdir}/usr/lib/debug/vmlinux-${KERNELRELEASE}
163 install_kernel_headers () {
171 find . arch/$SRCARCH -maxdepth 1 -name Makefile\*
172 find include scripts -type f -o -type l
173 find arch/$SRCARCH -name Kbuild.platforms -o -name Platform
174 find $(find arch/$SRCARCH -name include -o -name scripts -type d) -type f
175 ) > debian/hdrsrcfiles
178 if is_enabled CONFIG_OBJTOOL; then
179 echo tools/objtool/objtool
182 find arch/$SRCARCH/include Module.symvers include scripts -type f
184 if is_enabled CONFIG_GCC_PLUGINS; then
185 find scripts/gcc-plugins -name \*.so
187 } > debian/hdrobjfiles
189 destdir=$pdir/usr/src/linux-headers-$version
191 tar -c -f - -C $srctree -T debian/hdrsrcfiles | tar -xf - -C $destdir
192 tar -c -f - -T debian/hdrobjfiles | tar -xf - -C $destdir
193 rm -f debian/hdrsrcfiles debian/hdrobjfiles
195 # copy .config manually to be where it's expected to be
196 cp $KCONFIG_CONFIG $destdir/.config
198 mkdir -p $pdir/lib/modules/$version/
199 ln -s /usr/src/linux-headers-$version $pdir/lib/modules/$version/build
202 install_libc_headers () {
207 $MAKE -f $srctree/Makefile headers
208 $MAKE -f $srctree/Makefile headers_install INSTALL_HDR_PATH=$pdir/usr
210 # move asm headers to /usr/include/<libc-machine>/asm to match the structure
211 # used by Debian-based distros (to support multi-arch)
212 host_arch=$(dpkg-architecture -a$(cat debian/arch) -qDEB_HOST_MULTIARCH)
213 mkdir $pdir/usr/include/$host_arch
214 mv $pdir/usr/include/asm $pdir/usr/include/$host_arch/
219 packages_enabled=$(dh_listpackages)
221 for package in ${packages_enabled}
225 # This must be done after linux-image, that is, we expect the
226 # debug package appears after linux-image in debian/control.
227 install_linux_image_dbg debian/linux-image-dbg debian/linux-image;;
228 linux-image-*|user-mode-linux-*)
229 install_linux_image debian/linux-image ${package};;
231 install_libc_headers debian/linux-libc-dev;;
233 install_kernel_headers debian/linux-headers ${package#linux-headers-};;
237 for package in ${packages_enabled}
241 create_package ${package} debian/linux-image-dbg;;
242 linux-image-*|user-mode-linux-*)
243 create_package ${package} debian/linux-image;;
245 create_package ${package} debian/linux-libc-dev;;
247 create_package ${package} debian/linux-headers;;