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