1#!/bin/sh 2# 3# builddeb 1.3 4# Copyright 2003 Wichert Akkerman <wichert@wiggy.net> 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 13set -e 14 15is_enabled() { 16 grep -q "^$1=y" include/config/auto.conf 17} 18 19if_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 27create_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 54install_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 129install_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 163install_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 202install_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=$(dpkg-architecture -a$DEB_HOST_ARCH -qDEB_HOST_MULTIARCH) 213 mkdir $pdir/usr/include/$host_arch 214 mv $pdir/usr/include/asm $pdir/usr/include/$host_arch/ 215} 216 217rm -f debian/files 218 219packages_enabled=$(dh_listpackages) 220 221for package in ${packages_enabled} 222do 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 235done 236 237for package in ${packages_enabled} 238do 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 249done 250 251exit 0 252