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 "$pdir" 44 fi 45 chmod -R go-w "$pdir" 46 # in case we are in a restrictive umask environment like 0077 47 chmod -R a+rX "$pdir" 48 # in case we build in a setuid/setgid directory 49 chmod -R ug-s "$pdir" 50 51 # Create the package 52 dpkg-gencontrol -p$pname -P"$pdir" 53 dpkg-deb $dpkg_deb_opts ${KDEB_COMPRESS:+-Z$KDEB_COMPRESS} --build "$pdir" .. 54} 55 56deploy_kernel_headers () { 57 pdir=$1 58 59 rm -rf $pdir 60 61 ( 62 cd $srctree 63 find . arch/$SRCARCH -maxdepth 1 -name Makefile\* 64 find include scripts -type f -o -type l 65 find arch/$SRCARCH -name Kbuild.platforms -o -name Platform 66 find $(find arch/$SRCARCH -name include -o -name scripts -type d) -type f 67 ) > debian/hdrsrcfiles 68 69 { 70 if is_enabled CONFIG_OBJTOOL; then 71 echo tools/objtool/objtool 72 fi 73 74 find arch/$SRCARCH/include Module.symvers include scripts -type f 75 76 if is_enabled CONFIG_GCC_PLUGINS; then 77 find scripts/gcc-plugins -name \*.so 78 fi 79 } > debian/hdrobjfiles 80 81 destdir=$pdir/usr/src/linux-headers-$version 82 mkdir -p $destdir 83 tar -c -f - -C $srctree -T debian/hdrsrcfiles | tar -xf - -C $destdir 84 tar -c -f - -T debian/hdrobjfiles | tar -xf - -C $destdir 85 rm -f debian/hdrsrcfiles debian/hdrobjfiles 86 87 # copy .config manually to be where it's expected to be 88 cp $KCONFIG_CONFIG $destdir/.config 89 90 mkdir -p $pdir/lib/modules/$version/ 91 ln -s /usr/src/linux-headers-$version $pdir/lib/modules/$version/build 92} 93 94deploy_libc_headers () { 95 pdir=$1 96 97 rm -rf $pdir 98 99 $MAKE -f $srctree/Makefile headers 100 $MAKE -f $srctree/Makefile headers_install INSTALL_HDR_PATH=$pdir/usr 101 102 # move asm headers to /usr/include/<libc-machine>/asm to match the structure 103 # used by Debian-based distros (to support multi-arch) 104 host_arch=$(dpkg-architecture -a$(cat debian/arch) -qDEB_HOST_MULTIARCH) 105 mkdir $pdir/usr/include/$host_arch 106 mv $pdir/usr/include/asm $pdir/usr/include/$host_arch/ 107} 108 109version=$KERNELRELEASE 110tmpdir=debian/linux-image 111dbg_dir=debian/linux-image-dbg 112packagename=linux-image-$version 113dbg_packagename=$packagename-dbg 114 115if [ "$ARCH" = "um" ] ; then 116 packagename=user-mode-linux-$version 117fi 118 119# Not all arches have the same installed path in debian 120# XXX: have each arch Makefile export a variable of the canonical image install 121# path instead 122case $ARCH in 123um) 124 installed_image_path="usr/bin/linux-$version" 125 ;; 126parisc|mips|powerpc) 127 installed_image_path="boot/vmlinux-$version" 128 ;; 129*) 130 installed_image_path="boot/vmlinuz-$version" 131esac 132 133BUILD_DEBUG=$(if_enabled_echo CONFIG_DEBUG_INFO Yes) 134 135# Setup the directory structure 136rm -rf "$tmpdir" "$dbg_dir" debian/files 137mkdir -m 755 -p "$tmpdir/DEBIAN" 138mkdir -p "$tmpdir/lib" "$tmpdir/boot" 139 140# Install the kernel 141if [ "$ARCH" = "um" ] ; then 142 mkdir -p "$tmpdir/usr/lib/uml/modules/$version" "$tmpdir/usr/bin" "$tmpdir/usr/share/doc/$packagename" 143 cp System.map "$tmpdir/usr/lib/uml/modules/$version/System.map" 144 cp $KCONFIG_CONFIG "$tmpdir/usr/share/doc/$packagename/config" 145 gzip "$tmpdir/usr/share/doc/$packagename/config" 146else 147 cp System.map "$tmpdir/boot/System.map-$version" 148 cp $KCONFIG_CONFIG "$tmpdir/boot/config-$version" 149fi 150cp "$($MAKE -s -f $srctree/Makefile image_name)" "$tmpdir/$installed_image_path" 151 152if is_enabled CONFIG_OF_EARLY_FLATTREE; then 153 # Only some architectures with OF support have this target 154 if [ -d "${srctree}/arch/$SRCARCH/boot/dts" ]; then 155 $MAKE -f $srctree/Makefile INSTALL_DTBS_PATH="$tmpdir/usr/lib/$packagename" dtbs_install 156 fi 157fi 158 159if is_enabled CONFIG_MODULES; then 160 INSTALL_MOD_PATH="$tmpdir" $MAKE -f $srctree/Makefile modules_install 161 rm -f "$tmpdir/lib/modules/$version/build" 162 rm -f "$tmpdir/lib/modules/$version/source" 163 if [ "$ARCH" = "um" ] ; then 164 mv "$tmpdir/lib/modules/$version"/* "$tmpdir/usr/lib/uml/modules/$version/" 165 rmdir "$tmpdir/lib/modules/$version" 166 fi 167 if [ -n "$BUILD_DEBUG" ] ; then 168 for module in $(find $tmpdir/lib/modules/ -name *.ko -printf '%P\n'); do 169 module=lib/modules/$module 170 mkdir -p $(dirname $dbg_dir/usr/lib/debug/$module) 171 # only keep debug symbols in the debug file 172 $OBJCOPY --only-keep-debug $tmpdir/$module $dbg_dir/usr/lib/debug/$module 173 # strip original module from debug symbols 174 $OBJCOPY --strip-debug $tmpdir/$module 175 # then add a link to those 176 $OBJCOPY --add-gnu-debuglink=$dbg_dir/usr/lib/debug/$module $tmpdir/$module 177 done 178 179 # resign stripped modules 180 if is_enabled CONFIG_MODULE_SIG_ALL; then 181 INSTALL_MOD_PATH="$tmpdir" $MAKE -f $srctree/Makefile modules_sign 182 fi 183 fi 184fi 185 186# Install the maintainer scripts 187# Note: hook scripts under /etc/kernel are also executed by official Debian 188# kernel packages, as well as kernel packages built using make-kpkg. 189# make-kpkg sets $INITRD to indicate whether an initramfs is wanted, and 190# so do we; recent versions of dracut and initramfs-tools will obey this. 191debhookdir=${KDEB_HOOKDIR:-/etc/kernel} 192for script in postinst postrm preinst prerm ; do 193 mkdir -p "$tmpdir$debhookdir/$script.d" 194 cat <<EOF > "$tmpdir/DEBIAN/$script" 195#!/bin/sh 196 197set -e 198 199# Pass maintainer script parameters to hook scripts 200export DEB_MAINT_PARAMS="\$*" 201 202# Tell initramfs builder whether it's wanted 203export INITRD=$(if_enabled_echo CONFIG_BLK_DEV_INITRD Yes No) 204 205test -d $debhookdir/$script.d && run-parts --arg="$version" --arg="/$installed_image_path" $debhookdir/$script.d 206exit 0 207EOF 208 chmod 755 "$tmpdir/DEBIAN/$script" 209done 210 211if [ "$ARCH" != "um" ]; then 212 if is_enabled CONFIG_MODULES; then 213 deploy_kernel_headers debian/linux-headers 214 create_package linux-headers-$version debian/linux-headers 215 fi 216 217 deploy_libc_headers debian/linux-libc-dev 218 create_package linux-libc-dev debian/linux-libc-dev 219fi 220 221create_package "$packagename" "$tmpdir" 222 223if [ -n "$BUILD_DEBUG" ] ; then 224 # Build debug package 225 # Different tools want the image in different locations 226 # perf 227 mkdir -p $dbg_dir/usr/lib/debug/lib/modules/$version/ 228 cp vmlinux $dbg_dir/usr/lib/debug/lib/modules/$version/ 229 # systemtap 230 mkdir -p $dbg_dir/usr/lib/debug/boot/ 231 ln -s ../lib/modules/$version/vmlinux $dbg_dir/usr/lib/debug/boot/vmlinux-$version 232 # kdump-tools 233 ln -s lib/modules/$version/vmlinux $dbg_dir/usr/lib/debug/vmlinux-$version 234 create_package "$dbg_packagename" "$dbg_dir" 235fi 236 237exit 0 238