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="$2" 29 30 export DH_OPTIONS="-p${pname} -P${pdir}" 31 32 dh_installdocs 33 dh_installchangelogs 34 dh_compress 35 dh_fixperms 36 dh_gencontrol 37 dh_md5sums 38 dh_builddeb -- ${KDEB_COMPRESS:+-Z$KDEB_COMPRESS} 39} 40 41install_linux_image () { 42 pdir=$1 43 pname=$2 44 45 rm -rf ${pdir} 46 47 # Only some architectures with OF support have this target 48 if is_enabled CONFIG_OF_EARLY_FLATTREE && [ -d "${srctree}/arch/${SRCARCH}/boot/dts" ]; then 49 ${MAKE} -f ${srctree}/Makefile INSTALL_DTBS_PATH="${pdir}/usr/lib/linux-image-${KERNELRELEASE}" dtbs_install 50 fi 51 52 ${MAKE} -f ${srctree}/Makefile INSTALL_MOD_PATH="${pdir}" modules_install 53 rm -f "${pdir}/lib/modules/${KERNELRELEASE}/build" 54 55 # Install the kernel 56 if [ "${ARCH}" = um ] ; then 57 mkdir -p "${pdir}/usr/lib/uml/modules" 58 mv "${pdir}/lib/modules/${KERNELRELEASE}" "${pdir}/usr/lib/uml/modules/${KERNELRELEASE}" 59 mkdir -p "${pdir}/usr/bin" "${pdir}/usr/share/doc/${pname}" 60 cp System.map "${pdir}/usr/lib/uml/modules/${KERNELRELEASE}/System.map" 61 cp ${KCONFIG_CONFIG} "${pdir}/usr/share/doc/${pname}/config" 62 gzip "${pdir}/usr/share/doc/${pname}/config" 63 else 64 mkdir -p "${pdir}/boot" 65 cp System.map "${pdir}/boot/System.map-${KERNELRELEASE}" 66 cp ${KCONFIG_CONFIG} "${pdir}/boot/config-${KERNELRELEASE}" 67 fi 68 69 # Not all arches have the same installed path in debian 70 # XXX: have each arch Makefile export a variable of the canonical image install 71 # path instead 72 case "${SRCARCH}" in 73 um) 74 installed_image_path="usr/bin/linux-${KERNELRELEASE}";; 75 parisc|mips|powerpc) 76 installed_image_path="boot/vmlinux-${KERNELRELEASE}";; 77 *) 78 installed_image_path="boot/vmlinuz-${KERNELRELEASE}";; 79 esac 80 cp "$(${MAKE} -s -f ${srctree}/Makefile image_name)" "${pdir}/${installed_image_path}" 81 82 # Install the maintainer scripts 83 # Note: hook scripts under /etc/kernel are also executed by official Debian 84 # kernel packages, as well as kernel packages built using make-kpkg. 85 # make-kpkg sets $INITRD to indicate whether an initramfs is wanted, and 86 # so do we; recent versions of dracut and initramfs-tools will obey this. 87 debhookdir=${KDEB_HOOKDIR:-/etc/kernel} 88 for script in postinst postrm preinst prerm; do 89 mkdir -p "${pdir}${debhookdir}/${script}.d" 90 91 mkdir -p "${pdir}/DEBIAN" 92 cat <<-EOF > "${pdir}/DEBIAN/${script}" 93 94 #!/bin/sh 95 96 set -e 97 98 # Pass maintainer script parameters to hook scripts 99 export DEB_MAINT_PARAMS="\$*" 100 101 # Tell initramfs builder whether it's wanted 102 export INITRD=$(if_enabled_echo CONFIG_BLK_DEV_INITRD Yes No) 103 104 test -d ${debhookdir}/${script}.d && run-parts --arg="${KERNELRELEASE}" --arg="/${installed_image_path}" ${debhookdir}/${script}.d 105 exit 0 106 EOF 107 chmod 755 "${pdir}/DEBIAN/${script}" 108 done 109} 110 111install_linux_image_dbg () { 112 pdir=$1 113 image_pdir=$2 114 115 rm -rf ${pdir} 116 117 for module in $(find ${image_pdir}/lib/modules/ -name *.ko -printf '%P\n'); do 118 module=lib/modules/${module} 119 mkdir -p $(dirname ${pdir}/usr/lib/debug/${module}) 120 # only keep debug symbols in the debug file 121 ${OBJCOPY} --only-keep-debug ${image_pdir}/${module} ${pdir}/usr/lib/debug/${module} 122 # strip original module from debug symbols 123 ${OBJCOPY} --strip-debug ${image_pdir}/${module} 124 # then add a link to those 125 ${OBJCOPY} --add-gnu-debuglink=${pdir}/usr/lib/debug/${module} ${image_pdir}/${module} 126 done 127 128 # re-sign stripped modules 129 if is_enabled CONFIG_MODULE_SIG_ALL; then 130 ${MAKE} -f ${srctree}/Makefile INSTALL_MOD_PATH="${image_pdir}" modules_sign 131 fi 132 133 # Build debug package 134 # Different tools want the image in different locations 135 # perf 136 mkdir -p ${pdir}/usr/lib/debug/lib/modules/${KERNELRELEASE}/ 137 cp vmlinux ${pdir}/usr/lib/debug/lib/modules/${KERNELRELEASE}/ 138 # systemtap 139 mkdir -p ${pdir}/usr/lib/debug/boot/ 140 ln -s ../lib/modules/${KERNELRELEASE}/vmlinux ${pdir}/usr/lib/debug/boot/vmlinux-${KERNELRELEASE} 141 # kdump-tools 142 ln -s lib/modules/${KERNELRELEASE}/vmlinux ${pdir}/usr/lib/debug/vmlinux-${KERNELRELEASE} 143} 144 145install_kernel_headers () { 146 pdir=$1 147 version=$2 148 149 rm -rf $pdir 150 151 "${srctree}/scripts/package/install-extmod-build" "${pdir}/usr/src/linux-headers-${version}" 152 153 mkdir -p $pdir/lib/modules/$version/ 154 ln -s /usr/src/linux-headers-$version $pdir/lib/modules/$version/build 155} 156 157install_libc_headers () { 158 pdir=$1 159 160 rm -rf $pdir 161 162 $MAKE -f $srctree/Makefile headers 163 $MAKE -f $srctree/Makefile headers_install INSTALL_HDR_PATH=$pdir/usr 164 165 # move asm headers to /usr/include/<libc-machine>/asm to match the structure 166 # used by Debian-based distros (to support multi-arch) 167 mkdir "$pdir/usr/include/${DEB_HOST_MULTIARCH}" 168 mv "$pdir/usr/include/asm" "$pdir/usr/include/${DEB_HOST_MULTIARCH}" 169} 170 171rm -f debian/files 172 173packages_enabled=$(dh_listpackages) 174 175for package in ${packages_enabled} 176do 177 case ${package} in 178 *-dbg) 179 # This must be done after linux-image, that is, we expect the 180 # debug package appears after linux-image in debian/control. 181 install_linux_image_dbg debian/linux-image-dbg debian/linux-image;; 182 linux-image-*|user-mode-linux-*) 183 install_linux_image debian/linux-image ${package};; 184 linux-libc-dev) 185 install_libc_headers debian/linux-libc-dev;; 186 linux-headers-*) 187 install_kernel_headers debian/linux-headers ${package#linux-headers-};; 188 esac 189done 190 191for package in ${packages_enabled} 192do 193 case ${package} in 194 *-dbg) 195 create_package ${package} debian/linux-image-dbg;; 196 linux-image-*|user-mode-linux-*) 197 create_package ${package} debian/linux-image;; 198 linux-libc-dev) 199 create_package ${package} debian/linux-libc-dev;; 200 linux-headers-*) 201 create_package ${package} debian/linux-headers;; 202 esac 203done 204 205exit 0 206