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 '$pdir'; find . -type f ! -path './DEBIAN/*' -printf '%P\0' \ 37 | xargs -r0 md5sum > DEBIAN/md5sums" 38 39 # a+rX in case we are in a restrictive umask environment like 0077 40 # ug-s in case we build in a setuid/setgid directory 41 chmod -R go-w,a+rX,ug-s "$pdir" 42 43 # Create the package 44 dpkg-gencontrol -p$pname -P"$pdir" 45 dpkg-deb --root-owner-group ${KDEB_COMPRESS:+-Z$KDEB_COMPRESS} --build "$pdir" .. 46} 47 48install_linux_image () { 49 pdir=$1 50 pname=$2 51 52 rm -rf ${pdir} 53 54 # Only some architectures with OF support have this target 55 if is_enabled CONFIG_OF_EARLY_FLATTREE && [ -d "${srctree}/arch/${SRCARCH}/boot/dts" ]; then 56 ${MAKE} -f ${srctree}/Makefile INSTALL_DTBS_PATH="${pdir}/usr/lib/linux-image-${KERNELRELEASE}" dtbs_install 57 fi 58 59 ${MAKE} -f ${srctree}/Makefile INSTALL_MOD_PATH="${pdir}" modules_install 60 rm -f "${pdir}/lib/modules/${KERNELRELEASE}/build" 61 62 # Install the kernel 63 if [ "${ARCH}" = um ] ; then 64 mkdir -p "${pdir}/usr/lib/uml/modules" 65 mv "${pdir}/lib/modules/${KERNELRELEASE}" "${pdir}/usr/lib/uml/modules/${KERNELRELEASE}" 66 mkdir -p "${pdir}/usr/bin" "${pdir}/usr/share/doc/${pname}" 67 cp System.map "${pdir}/usr/lib/uml/modules/${KERNELRELEASE}/System.map" 68 cp ${KCONFIG_CONFIG} "${pdir}/usr/share/doc/${pname}/config" 69 gzip "${pdir}/usr/share/doc/${pname}/config" 70 else 71 mkdir -p "${pdir}/boot" 72 cp System.map "${pdir}/boot/System.map-${KERNELRELEASE}" 73 cp ${KCONFIG_CONFIG} "${pdir}/boot/config-${KERNELRELEASE}" 74 fi 75 76 # Not all arches have the same installed path in debian 77 # XXX: have each arch Makefile export a variable of the canonical image install 78 # path instead 79 case "${SRCARCH}" in 80 um) 81 installed_image_path="usr/bin/linux-${KERNELRELEASE}";; 82 parisc|mips|powerpc) 83 installed_image_path="boot/vmlinux-${KERNELRELEASE}";; 84 *) 85 installed_image_path="boot/vmlinuz-${KERNELRELEASE}";; 86 esac 87 cp "$(${MAKE} -s -f ${srctree}/Makefile image_name)" "${pdir}/${installed_image_path}" 88 89 # Install the maintainer scripts 90 # Note: hook scripts under /etc/kernel are also executed by official Debian 91 # kernel packages, as well as kernel packages built using make-kpkg. 92 # make-kpkg sets $INITRD to indicate whether an initramfs is wanted, and 93 # so do we; recent versions of dracut and initramfs-tools will obey this. 94 debhookdir=${KDEB_HOOKDIR:-/etc/kernel} 95 for script in postinst postrm preinst prerm; do 96 mkdir -p "${pdir}${debhookdir}/${script}.d" 97 98 mkdir -p "${pdir}/DEBIAN" 99 cat <<-EOF > "${pdir}/DEBIAN/${script}" 100 101 #!/bin/sh 102 103 set -e 104 105 # Pass maintainer script parameters to hook scripts 106 export DEB_MAINT_PARAMS="\$*" 107 108 # Tell initramfs builder whether it's wanted 109 export INITRD=$(if_enabled_echo CONFIG_BLK_DEV_INITRD Yes No) 110 111 test -d ${debhookdir}/${script}.d && run-parts --arg="${KERNELRELEASE}" --arg="/${installed_image_path}" ${debhookdir}/${script}.d 112 exit 0 113 EOF 114 chmod 755 "${pdir}/DEBIAN/${script}" 115 done 116} 117 118install_linux_image_dbg () { 119 pdir=$1 120 image_pdir=$2 121 122 rm -rf ${pdir} 123 124 for module in $(find ${image_pdir}/lib/modules/ -name *.ko -printf '%P\n'); do 125 module=lib/modules/${module} 126 mkdir -p $(dirname ${pdir}/usr/lib/debug/${module}) 127 # only keep debug symbols in the debug file 128 ${OBJCOPY} --only-keep-debug ${image_pdir}/${module} ${pdir}/usr/lib/debug/${module} 129 # strip original module from debug symbols 130 ${OBJCOPY} --strip-debug ${image_pdir}/${module} 131 # then add a link to those 132 ${OBJCOPY} --add-gnu-debuglink=${pdir}/usr/lib/debug/${module} ${image_pdir}/${module} 133 done 134 135 # re-sign stripped modules 136 if is_enabled CONFIG_MODULE_SIG_ALL; then 137 ${MAKE} -f ${srctree}/Makefile INSTALL_MOD_PATH="${image_pdir}" modules_sign 138 fi 139 140 # Build debug package 141 # Different tools want the image in different locations 142 # perf 143 mkdir -p ${pdir}/usr/lib/debug/lib/modules/${KERNELRELEASE}/ 144 cp vmlinux ${pdir}/usr/lib/debug/lib/modules/${KERNELRELEASE}/ 145 # systemtap 146 mkdir -p ${pdir}/usr/lib/debug/boot/ 147 ln -s ../lib/modules/${KERNELRELEASE}/vmlinux ${pdir}/usr/lib/debug/boot/vmlinux-${KERNELRELEASE} 148 # kdump-tools 149 ln -s lib/modules/${KERNELRELEASE}/vmlinux ${pdir}/usr/lib/debug/vmlinux-${KERNELRELEASE} 150} 151 152install_kernel_headers () { 153 pdir=$1 154 version=$2 155 156 rm -rf $pdir 157 158 "${srctree}/scripts/package/install-extmod-build" "${pdir}/usr/src/linux-headers-${version}" 159 160 mkdir -p $pdir/lib/modules/$version/ 161 ln -s /usr/src/linux-headers-$version $pdir/lib/modules/$version/build 162} 163 164install_libc_headers () { 165 pdir=$1 166 167 rm -rf $pdir 168 169 $MAKE -f $srctree/Makefile headers 170 $MAKE -f $srctree/Makefile headers_install INSTALL_HDR_PATH=$pdir/usr 171 172 # move asm headers to /usr/include/<libc-machine>/asm to match the structure 173 # used by Debian-based distros (to support multi-arch) 174 mkdir "$pdir/usr/include/${DEB_HOST_MULTIARCH}" 175 mv "$pdir/usr/include/asm" "$pdir/usr/include/${DEB_HOST_MULTIARCH}" 176} 177 178rm -f debian/files 179 180packages_enabled=$(dh_listpackages) 181 182for package in ${packages_enabled} 183do 184 case ${package} in 185 *-dbg) 186 # This must be done after linux-image, that is, we expect the 187 # debug package appears after linux-image in debian/control. 188 install_linux_image_dbg debian/linux-image-dbg debian/linux-image;; 189 linux-image-*|user-mode-linux-*) 190 install_linux_image debian/linux-image ${package};; 191 linux-libc-dev) 192 install_libc_headers debian/linux-libc-dev;; 193 linux-headers-*) 194 install_kernel_headers debian/linux-headers ${package#linux-headers-};; 195 esac 196done 197 198for package in ${packages_enabled} 199do 200 case ${package} in 201 *-dbg) 202 create_package ${package} debian/linux-image-dbg;; 203 linux-image-*|user-mode-linux-*) 204 create_package ${package} debian/linux-image;; 205 linux-libc-dev) 206 create_package ${package} debian/linux-libc-dev;; 207 linux-headers-*) 208 create_package ${package} debian/linux-headers;; 209 esac 210done 211 212exit 0 213