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 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 ${MAKE} -f ${srctree}/Makefile INSTALL_MOD_PATH="${pdir}" modules_install 66 rm -f "${pdir}/lib/modules/${KERNELRELEASE}/build" 67 68 # Install the kernel 69 if [ "${ARCH}" = um ] ; then 70 mkdir -p "${pdir}/usr/lib/uml/modules" 71 mv "${pdir}/lib/modules/${KERNELRELEASE}" "${pdir}/usr/lib/uml/modules/${KERNELRELEASE}" 72 mkdir -p "${pdir}/usr/bin" "${pdir}/usr/share/doc/${pname}" 73 cp System.map "${pdir}/usr/lib/uml/modules/${KERNELRELEASE}/System.map" 74 cp ${KCONFIG_CONFIG} "${pdir}/usr/share/doc/${pname}/config" 75 gzip "${pdir}/usr/share/doc/${pname}/config" 76 else 77 mkdir -p "${pdir}/boot" 78 cp System.map "${pdir}/boot/System.map-${KERNELRELEASE}" 79 cp ${KCONFIG_CONFIG} "${pdir}/boot/config-${KERNELRELEASE}" 80 fi 81 82 # Not all arches have the same installed path in debian 83 # XXX: have each arch Makefile export a variable of the canonical image install 84 # path instead 85 case "${SRCARCH}" in 86 um) 87 installed_image_path="usr/bin/linux-${KERNELRELEASE}";; 88 parisc|mips|powerpc) 89 installed_image_path="boot/vmlinux-${KERNELRELEASE}";; 90 *) 91 installed_image_path="boot/vmlinuz-${KERNELRELEASE}";; 92 esac 93 cp "$(${MAKE} -s -f ${srctree}/Makefile image_name)" "${pdir}/${installed_image_path}" 94 95 # Install the maintainer scripts 96 # Note: hook scripts under /etc/kernel are also executed by official Debian 97 # kernel packages, as well as kernel packages built using make-kpkg. 98 # make-kpkg sets $INITRD to indicate whether an initramfs is wanted, and 99 # so do we; recent versions of dracut and initramfs-tools will obey this. 100 debhookdir=${KDEB_HOOKDIR:-/etc/kernel} 101 for script in postinst postrm preinst prerm; do 102 mkdir -p "${pdir}${debhookdir}/${script}.d" 103 104 mkdir -p "${pdir}/DEBIAN" 105 cat <<-EOF > "${pdir}/DEBIAN/${script}" 106 107 #!/bin/sh 108 109 set -e 110 111 # Pass maintainer script parameters to hook scripts 112 export DEB_MAINT_PARAMS="\$*" 113 114 # Tell initramfs builder whether it's wanted 115 export INITRD=$(if_enabled_echo CONFIG_BLK_DEV_INITRD Yes No) 116 117 test -d ${debhookdir}/${script}.d && run-parts --arg="${KERNELRELEASE}" --arg="/${installed_image_path}" ${debhookdir}/${script}.d 118 exit 0 119 EOF 120 chmod 755 "${pdir}/DEBIAN/${script}" 121 done 122 } 123 124 install_linux_image_dbg () { 125 pdir=$1 126 image_pdir=$2 127 128 rm -rf ${pdir} 129 130 for module in $(find ${image_pdir}/lib/modules/ -name *.ko -printf '%P\n'); do 131 module=lib/modules/${module} 132 mkdir -p $(dirname ${pdir}/usr/lib/debug/${module}) 133 # only keep debug symbols in the debug file 134 ${OBJCOPY} --only-keep-debug ${image_pdir}/${module} ${pdir}/usr/lib/debug/${module} 135 # strip original module from debug symbols 136 ${OBJCOPY} --strip-debug ${image_pdir}/${module} 137 # then add a link to those 138 ${OBJCOPY} --add-gnu-debuglink=${pdir}/usr/lib/debug/${module} ${image_pdir}/${module} 139 done 140 141 # re-sign stripped modules 142 if is_enabled CONFIG_MODULE_SIG_ALL; then 143 ${MAKE} -f ${srctree}/Makefile INSTALL_MOD_PATH="${image_pdir}" modules_sign 144 fi 145 146 # Build debug package 147 # Different tools want the image in different locations 148 # perf 149 mkdir -p ${pdir}/usr/lib/debug/lib/modules/${KERNELRELEASE}/ 150 cp vmlinux ${pdir}/usr/lib/debug/lib/modules/${KERNELRELEASE}/ 151 # systemtap 152 mkdir -p ${pdir}/usr/lib/debug/boot/ 153 ln -s ../lib/modules/${KERNELRELEASE}/vmlinux ${pdir}/usr/lib/debug/boot/vmlinux-${KERNELRELEASE} 154 # kdump-tools 155 ln -s lib/modules/${KERNELRELEASE}/vmlinux ${pdir}/usr/lib/debug/vmlinux-${KERNELRELEASE} 156 } 157 158 install_kernel_headers () { 159 pdir=$1 160 version=$2 161 162 rm -rf $pdir 163 164 "${srctree}/scripts/package/install-extmod-build" "${pdir}/usr/src/linux-headers-${version}" 165 166 mkdir -p $pdir/lib/modules/$version/ 167 ln -s /usr/src/linux-headers-$version $pdir/lib/modules/$version/build 168 } 169 170 install_libc_headers () { 171 pdir=$1 172 173 rm -rf $pdir 174 175 $MAKE -f $srctree/Makefile headers 176 $MAKE -f $srctree/Makefile headers_install INSTALL_HDR_PATH=$pdir/usr 177 178 # move asm headers to /usr/include/<libc-machine>/asm to match the structure 179 # used by Debian-based distros (to support multi-arch) 180 host_arch=$(dpkg-architecture -a$DEB_HOST_ARCH -qDEB_HOST_MULTIARCH) 181 mkdir $pdir/usr/include/$host_arch 182 mv $pdir/usr/include/asm $pdir/usr/include/$host_arch/ 183 } 184 185 rm -f debian/files 186 187 packages_enabled=$(dh_listpackages) 188 189 for package in ${packages_enabled} 190 do 191 case ${package} in 192 *-dbg) 193 # This must be done after linux-image, that is, we expect the 194 # debug package appears after linux-image in debian/control. 195 install_linux_image_dbg debian/linux-image-dbg debian/linux-image;; 196 linux-image-*|user-mode-linux-*) 197 install_linux_image debian/linux-image ${package};; 198 linux-libc-dev) 199 install_libc_headers debian/linux-libc-dev;; 200 linux-headers-*) 201 install_kernel_headers debian/linux-headers ${package#linux-headers-};; 202 esac 203 done 204 205 for package in ${packages_enabled} 206 do 207 case ${package} in 208 *-dbg) 209 create_package ${package} debian/linux-image-dbg;; 210 linux-image-*|user-mode-linux-*) 211 create_package ${package} debian/linux-image;; 212 linux-libc-dev) 213 create_package ${package} debian/linux-libc-dev;; 214 linux-headers-*) 215 create_package ${package} debian/linux-headers;; 216 esac 217 done 218 219 exit 0 220