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 "$3" 24 fi 25} 26 27create_package() { 28 export DH_OPTIONS="-p${1}" 29 30 dh_installdocs 31 dh_installchangelogs 32 dh_compress 33 dh_fixperms 34 dh_gencontrol 35 dh_md5sums 36 dh_builddeb -- ${KDEB_COMPRESS:+-Z$KDEB_COMPRESS} 37} 38 39install_linux_image () { 40 pname=$1 41 pdir=debian/$1 42 43 rm -rf ${pdir} 44 45 # Only some architectures with OF support have this target 46 if is_enabled CONFIG_OF_EARLY_FLATTREE && [ -d "${srctree}/arch/${SRCARCH}/boot/dts" ]; then 47 ${MAKE} -f ${srctree}/Makefile INSTALL_DTBS_PATH="${pdir}/usr/lib/linux-image-${KERNELRELEASE}" dtbs_install 48 fi 49 50 ${MAKE} -f ${srctree}/Makefile INSTALL_MOD_PATH="${pdir}" INSTALL_MOD_STRIP=1 modules_install 51 rm -f "${pdir}/lib/modules/${KERNELRELEASE}/build" 52 53 # Install the kernel 54 if [ "${ARCH}" = um ] ; then 55 mkdir -p "${pdir}/usr/lib/uml/modules" 56 mv "${pdir}/lib/modules/${KERNELRELEASE}" "${pdir}/usr/lib/uml/modules/${KERNELRELEASE}" 57 mkdir -p "${pdir}/usr/bin" "${pdir}/usr/share/doc/${pname}" 58 cp System.map "${pdir}/usr/lib/uml/modules/${KERNELRELEASE}/System.map" 59 cp ${KCONFIG_CONFIG} "${pdir}/usr/share/doc/${pname}/config" 60 gzip "${pdir}/usr/share/doc/${pname}/config" 61 else 62 mkdir -p "${pdir}/boot" 63 cp System.map "${pdir}/boot/System.map-${KERNELRELEASE}" 64 cp ${KCONFIG_CONFIG} "${pdir}/boot/config-${KERNELRELEASE}" 65 fi 66 67 # Not all arches have the same installed path in debian 68 # XXX: have each arch Makefile export a variable of the canonical image install 69 # path instead 70 case "${SRCARCH}" in 71 um) 72 installed_image_path="usr/bin/linux-${KERNELRELEASE}";; 73 parisc|mips|powerpc) 74 installed_image_path="boot/vmlinux-${KERNELRELEASE}";; 75 *) 76 installed_image_path="boot/vmlinuz-${KERNELRELEASE}";; 77 esac 78 cp "$(${MAKE} -s -f ${srctree}/Makefile image_name)" "${pdir}/${installed_image_path}" 79 80 # Install the maintainer scripts 81 # Note: hook scripts under /etc/kernel are also executed by official Debian 82 # kernel packages, as well as kernel packages built using make-kpkg. 83 # make-kpkg sets $INITRD to indicate whether an initramfs is wanted, and 84 # so do we; recent versions of dracut and initramfs-tools will obey this. 85 debhookdir=${KDEB_HOOKDIR:-/etc/kernel} 86 for script in postinst postrm preinst prerm; do 87 mkdir -p "${pdir}${debhookdir}/${script}.d" 88 89 mkdir -p "${pdir}/DEBIAN" 90 cat <<-EOF > "${pdir}/DEBIAN/${script}" 91 92 #!/bin/sh 93 94 set -e 95 96 # Pass maintainer script parameters to hook scripts 97 export DEB_MAINT_PARAMS="\$*" 98 99 # Tell initramfs builder whether it's wanted 100 export INITRD=$(if_enabled_echo CONFIG_BLK_DEV_INITRD Yes No) 101 102 test -d ${debhookdir}/${script}.d && run-parts --arg="${KERNELRELEASE}" --arg="/${installed_image_path}" ${debhookdir}/${script}.d 103 exit 0 104 EOF 105 chmod 755 "${pdir}/DEBIAN/${script}" 106 done 107} 108 109install_linux_image_dbg () { 110 pdir=debian/$1 111 112 rm -rf ${pdir} 113 114 # Parse modules.order directly because 'make modules_install' may sign, 115 # compress modules, and then run unneeded depmod. 116 while read -r mod; do 117 mod="${mod%.o}.ko" 118 dbg="${pdir}/usr/lib/debug/lib/modules/${KERNELRELEASE}/kernel/${mod}" 119 buildid=$("${READELF}" -n "${mod}" | sed -n 's@^.*Build ID: \(..\)\(.*\)@\1/\2@p') 120 link="${pdir}/usr/lib/debug/.build-id/${buildid}.debug" 121 122 mkdir -p "${dbg%/*}" "${link%/*}" 123 "${OBJCOPY}" --only-keep-debug "${mod}" "${dbg}" 124 ln -sf --relative "${dbg}" "${link}" 125 done < modules.order 126 127 # Build debug package 128 # Different tools want the image in different locations 129 # perf 130 mkdir -p ${pdir}/usr/lib/debug/lib/modules/${KERNELRELEASE}/ 131 cp vmlinux ${pdir}/usr/lib/debug/lib/modules/${KERNELRELEASE}/ 132 # systemtap 133 mkdir -p ${pdir}/usr/lib/debug/boot/ 134 ln -s ../lib/modules/${KERNELRELEASE}/vmlinux ${pdir}/usr/lib/debug/boot/vmlinux-${KERNELRELEASE} 135 # kdump-tools 136 ln -s lib/modules/${KERNELRELEASE}/vmlinux ${pdir}/usr/lib/debug/vmlinux-${KERNELRELEASE} 137} 138 139install_kernel_headers () { 140 pdir=debian/$1 141 version=${1#linux-headers-} 142 143 rm -rf $pdir 144 145 "${srctree}/scripts/package/install-extmod-build" "${pdir}/usr/src/linux-headers-${version}" 146 147 mkdir -p $pdir/lib/modules/$version/ 148 ln -s /usr/src/linux-headers-$version $pdir/lib/modules/$version/build 149} 150 151install_libc_headers () { 152 pdir=debian/$1 153 154 rm -rf $pdir 155 156 $MAKE -f $srctree/Makefile headers_install INSTALL_HDR_PATH=$pdir/usr 157 158 # move asm headers to /usr/include/<libc-machine>/asm to match the structure 159 # used by Debian-based distros (to support multi-arch) 160 mkdir "$pdir/usr/include/${DEB_HOST_MULTIARCH}" 161 mv "$pdir/usr/include/asm" "$pdir/usr/include/${DEB_HOST_MULTIARCH}" 162} 163 164rm -f debian/files 165 166packages_enabled=$(dh_listpackages) 167 168for package in ${packages_enabled} 169do 170 case ${package} in 171 *-dbg) 172 install_linux_image_dbg "${package}";; 173 linux-image-*|user-mode-linux-*) 174 install_linux_image "${package}";; 175 linux-libc-dev) 176 install_libc_headers "${package}";; 177 linux-headers-*) 178 install_kernel_headers "${package}";; 179 esac 180 create_package "${package}" 181done 182