| 1 | #!/bin/sh |
| 2 | # |
| 3 | # builddeb 1.3 |
| 4 | # Copyright 2003 Wichert Akkerman <[email protected]> |
| 5 | # |
| 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 |
| 11 | # removal. |
| 12 | |
| 13 | set -e |
| 14 | |
| 15 | is_enabled() { |
| 16 | grep -q "^$1=y" include/config/auto.conf |
| 17 | } |
| 18 | |
| 19 | if_enabled_echo() { |
| 20 | if is_enabled "$1"; then |
| 21 | echo -n "$2" |
| 22 | elif [ $# -ge 3 ]; then |
| 23 | echo -n "$3" |
| 24 | fi |
| 25 | } |
| 26 | |
| 27 | create_package() { |
| 28 | local pname="$1" pdir="$2" |
| 29 | local dpkg_deb_opts |
| 30 | |
| 31 | mkdir -m 755 -p "$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 '$pdir'; find . -type f ! -path './DEBIAN/*' -printf '%P\0' \ |
| 37 | | xargs -r0 md5sum > DEBIAN/md5sums" |
| 38 | |
| 39 | # Fix ownership and permissions |
| 40 | if [ "$DEB_RULES_REQUIRES_ROOT" = "no" ]; then |
| 41 | dpkg_deb_opts="--root-owner-group" |
| 42 | else |
| 43 | chown -R root:root "$pdir" |
| 44 | fi |
| 45 | # a+rX in case we are in a restrictive umask environment like 0077 |
| 46 | # ug-s in case we build in a setuid/setgid directory |
| 47 | chmod -R go-w,a+rX,ug-s "$pdir" |
| 48 | |
| 49 | # Create the package |
| 50 | dpkg-gencontrol -p$pname -P"$pdir" |
| 51 | dpkg-deb $dpkg_deb_opts ${KDEB_COMPRESS:+-Z$KDEB_COMPRESS} --build "$pdir" .. |
| 52 | } |
| 53 | |
| 54 | install_linux_image () { |
| 55 | pdir=$1 |
| 56 | pname=$2 |
| 57 | |
| 58 | rm -rf ${pdir} |
| 59 | |
| 60 | # Only some architectures with OF support have this target |
| 61 | if is_enabled CONFIG_OF_EARLY_FLATTREE && [ -d "${srctree}/arch/${SRCARCH}/boot/dts" ]; then |
| 62 | ${MAKE} -f ${srctree}/Makefile INSTALL_DTBS_PATH="${pdir}/usr/lib/linux-image-${KERNELRELEASE}" dtbs_install |
| 63 | fi |
| 64 | |
| 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}" |
| 72 | fi |
| 73 | fi |
| 74 | |
| 75 | # Install the kernel |
| 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/${pname}/config" |
| 81 | else |
| 82 | mkdir -p "${pdir}/boot" |
| 83 | cp System.map "${pdir}/boot/System.map-${KERNELRELEASE}" |
| 84 | cp ${KCONFIG_CONFIG} "${pdir}/boot/config-${KERNELRELEASE}" |
| 85 | fi |
| 86 | |
| 87 | # Not all arches have the same installed path in debian |
| 88 | # XXX: have each arch Makefile export a variable of the canonical image install |
| 89 | # path instead |
| 90 | case "${SRCARCH}" in |
| 91 | um) |
| 92 | installed_image_path="usr/bin/linux-${KERNELRELEASE}";; |
| 93 | parisc|mips|powerpc) |
| 94 | installed_image_path="boot/vmlinux-${KERNELRELEASE}";; |
| 95 | *) |
| 96 | installed_image_path="boot/vmlinuz-${KERNELRELEASE}";; |
| 97 | esac |
| 98 | cp "$(${MAKE} -s -f ${srctree}/Makefile image_name)" "${pdir}/${installed_image_path}" |
| 99 | |
| 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}/${script}.d" |
| 108 | |
| 109 | mkdir -p "${pdir}/DEBIAN" |
| 110 | cat <<-EOF > "${pdir}/DEBIAN/${script}" |
| 111 | |
| 112 | #!/bin/sh |
| 113 | |
| 114 | set -e |
| 115 | |
| 116 | # Pass maintainer script parameters to hook scripts |
| 117 | export DEB_MAINT_PARAMS="\$*" |
| 118 | |
| 119 | # Tell initramfs builder whether it's wanted |
| 120 | export INITRD=$(if_enabled_echo CONFIG_BLK_DEV_INITRD Yes No) |
| 121 | |
| 122 | test -d ${debhookdir}/${script}.d && run-parts --arg="${KERNELRELEASE}" --arg="/${installed_image_path}" ${debhookdir}/${script}.d |
| 123 | exit 0 |
| 124 | EOF |
| 125 | chmod 755 "${pdir}/DEBIAN/${script}" |
| 126 | done |
| 127 | } |
| 128 | |
| 129 | install_linux_image_dbg () { |
| 130 | pdir=$1 |
| 131 | image_pdir=$2 |
| 132 | |
| 133 | rm -rf ${pdir} |
| 134 | |
| 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} |
| 144 | done |
| 145 | |
| 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 |
| 149 | fi |
| 150 | |
| 151 | # Build debug package |
| 152 | # Different tools want the image in different locations |
| 153 | # perf |
| 154 | mkdir -p ${pdir}/usr/lib/debug/lib/modules/${KERNELRELEASE}/ |
| 155 | cp vmlinux ${pdir}/usr/lib/debug/lib/modules/${KERNELRELEASE}/ |
| 156 | # systemtap |
| 157 | mkdir -p ${pdir}/usr/lib/debug/boot/ |
| 158 | ln -s ../lib/modules/${KERNELRELEASE}/vmlinux ${pdir}/usr/lib/debug/boot/vmlinux-${KERNELRELEASE} |
| 159 | # kdump-tools |
| 160 | ln -s lib/modules/${KERNELRELEASE}/vmlinux ${pdir}/usr/lib/debug/vmlinux-${KERNELRELEASE} |
| 161 | } |
| 162 | |
| 163 | install_kernel_headers () { |
| 164 | pdir=$1 |
| 165 | version=$2 |
| 166 | |
| 167 | rm -rf $pdir |
| 168 | |
| 169 | ( |
| 170 | cd $srctree |
| 171 | find . arch/$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 |
| 176 | |
| 177 | { |
| 178 | if is_enabled CONFIG_OBJTOOL; then |
| 179 | echo tools/objtool/objtool |
| 180 | fi |
| 181 | |
| 182 | find arch/$SRCARCH/include Module.symvers include scripts -type f |
| 183 | |
| 184 | if is_enabled CONFIG_GCC_PLUGINS; then |
| 185 | find scripts/gcc-plugins -name \*.so |
| 186 | fi |
| 187 | } > debian/hdrobjfiles |
| 188 | |
| 189 | destdir=$pdir/usr/src/linux-headers-$version |
| 190 | mkdir -p $destdir |
| 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 |
| 194 | |
| 195 | # copy .config manually to be where it's expected to be |
| 196 | cp $KCONFIG_CONFIG $destdir/.config |
| 197 | |
| 198 | mkdir -p $pdir/lib/modules/$version/ |
| 199 | ln -s /usr/src/linux-headers-$version $pdir/lib/modules/$version/build |
| 200 | } |
| 201 | |
| 202 | install_libc_headers () { |
| 203 | pdir=$1 |
| 204 | |
| 205 | rm -rf $pdir |
| 206 | |
| 207 | $MAKE -f $srctree/Makefile headers |
| 208 | $MAKE -f $srctree/Makefile headers_install INSTALL_HDR_PATH=$pdir/usr |
| 209 | |
| 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/ |
| 215 | } |
| 216 | |
| 217 | rm -f debian/files |
| 218 | |
| 219 | packages_enabled=$(dh_listpackages) |
| 220 | |
| 221 | for package in ${packages_enabled} |
| 222 | do |
| 223 | case ${package} in |
| 224 | *-dbg) |
| 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};; |
| 230 | linux-libc-dev) |
| 231 | install_libc_headers debian/linux-libc-dev;; |
| 232 | linux-headers-*) |
| 233 | install_kernel_headers debian/linux-headers ${package#linux-headers-};; |
| 234 | esac |
| 235 | done |
| 236 | |
| 237 | for package in ${packages_enabled} |
| 238 | do |
| 239 | case ${package} in |
| 240 | *-dbg) |
| 241 | create_package ${package} debian/linux-image-dbg;; |
| 242 | linux-image-*|user-mode-linux-*) |
| 243 | create_package ${package} debian/linux-image;; |
| 244 | linux-libc-dev) |
| 245 | create_package ${package} debian/linux-libc-dev;; |
| 246 | linux-headers-*) |
| 247 | create_package ${package} debian/linux-headers;; |
| 248 | esac |
| 249 | done |
| 250 | |
| 251 | exit 0 |