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="$2" 29 30 mkdir -m 755 -p "$pdir/DEBIAN" 31 mkdir -p "$pdir/usr/share/doc/$pname" 32 cp debian/copyright "$pdir/usr/share/doc/$pname/" 33 cp debian/changelog "$pdir/usr/share/doc/$pname/changelog.Debian" 34 gzip -9 "$pdir/usr/share/doc/$pname/changelog.Debian" 35 sh -c "cd '$pdir'; find . -type f ! -path './DEBIAN/*' -printf '%P\0' \ 36 | xargs -r0 md5sum > DEBIAN/md5sums" 37 38 # Fix ownership and permissions 39 chown -R root:root "$pdir" 40 chmod -R go-w "$pdir" 41 # in case we are in a restrictive umask environment like 0077 42 chmod -R a+rX "$pdir" 43 44 # Create the package 45 dpkg-gencontrol -p$pname -P"$pdir" 46 dpkg --build "$pdir" .. 47} 48 49version=$KERNELRELEASE 50tmpdir="$objtree/debian/tmp" 51kernel_headers_dir="$objtree/debian/hdrtmp" 52libc_headers_dir="$objtree/debian/headertmp" 53dbg_dir="$objtree/debian/dbgtmp" 54packagename=linux-image-$version 55kernel_headers_packagename=linux-headers-$version 56libc_headers_packagename=linux-libc-dev 57dbg_packagename=$packagename-dbg 58 59if [ "$ARCH" = "um" ] ; then 60 packagename=user-mode-linux-$version 61fi 62 63# Not all arches have the same installed path in debian 64# XXX: have each arch Makefile export a variable of the canonical image install 65# path instead 66case $ARCH in 67um) 68 installed_image_path="usr/bin/linux-$version" 69 ;; 70parisc|mips|powerpc) 71 installed_image_path="boot/vmlinux-$version" 72 ;; 73*) 74 installed_image_path="boot/vmlinuz-$version" 75esac 76 77BUILD_DEBUG=$(if_enabled_echo CONFIG_DEBUG_INFO Yes) 78 79# Setup the directory structure 80rm -rf "$tmpdir" "$kernel_headers_dir" "$libc_headers_dir" "$dbg_dir" $objtree/debian/files 81mkdir -m 755 -p "$tmpdir/DEBIAN" 82mkdir -p "$tmpdir/lib" "$tmpdir/boot" 83mkdir -p "$kernel_headers_dir/lib/modules/$version/" 84 85# Build and install the kernel 86if [ "$ARCH" = "um" ] ; then 87 mkdir -p "$tmpdir/usr/lib/uml/modules/$version" "$tmpdir/usr/bin" "$tmpdir/usr/share/doc/$packagename" 88 $MAKE linux 89 cp System.map "$tmpdir/usr/lib/uml/modules/$version/System.map" 90 cp $KCONFIG_CONFIG "$tmpdir/usr/share/doc/$packagename/config" 91 gzip "$tmpdir/usr/share/doc/$packagename/config" 92else 93 cp System.map "$tmpdir/boot/System.map-$version" 94 cp $KCONFIG_CONFIG "$tmpdir/boot/config-$version" 95fi 96cp "$($MAKE -s -f $srctree/Makefile image_name)" "$tmpdir/$installed_image_path" 97 98if is_enabled CONFIG_OF_EARLY_FLATTREE; then 99 # Only some architectures with OF support have this target 100 if [ -d "${srctree}/arch/$SRCARCH/boot/dts" ]; then 101 $MAKE -f $srctree/Makefile INSTALL_DTBS_PATH="$tmpdir/usr/lib/$packagename" dtbs_install 102 fi 103fi 104 105if is_enabled CONFIG_MODULES; then 106 INSTALL_MOD_PATH="$tmpdir" $MAKE -f $srctree/Makefile modules_install 107 rm -f "$tmpdir/lib/modules/$version/build" 108 rm -f "$tmpdir/lib/modules/$version/source" 109 if [ "$ARCH" = "um" ] ; then 110 mv "$tmpdir/lib/modules/$version"/* "$tmpdir/usr/lib/uml/modules/$version/" 111 rmdir "$tmpdir/lib/modules/$version" 112 fi 113 if [ -n "$BUILD_DEBUG" ] ; then 114 for module in $(find $tmpdir/lib/modules/ -name *.ko -printf '%P\n'); do 115 module=lib/modules/$module 116 mkdir -p $(dirname $dbg_dir/usr/lib/debug/$module) 117 # only keep debug symbols in the debug file 118 $OBJCOPY --only-keep-debug $tmpdir/$module $dbg_dir/usr/lib/debug/$module 119 # strip original module from debug symbols 120 $OBJCOPY --strip-debug $tmpdir/$module 121 # then add a link to those 122 $OBJCOPY --add-gnu-debuglink=$dbg_dir/usr/lib/debug/$module $tmpdir/$module 123 done 124 125 # resign stripped modules 126 if is_enabled CONFIG_MODULE_SIG_ALL; then 127 INSTALL_MOD_PATH="$tmpdir" $MAKE -f $srctree/Makefile modules_sign 128 fi 129 fi 130fi 131 132if [ "$ARCH" != "um" ]; then 133 $MAKE -f $srctree/Makefile headers 134 $MAKE -f $srctree/Makefile headers_install INSTALL_HDR_PATH="$libc_headers_dir/usr" 135 # move asm headers to /usr/include/<libc-machine>/asm to match the structure 136 # used by Debian-based distros (to support multi-arch) 137 host_arch=$(dpkg-architecture -a$(cat debian/arch) -qDEB_HOST_MULTIARCH) 138 mkdir $libc_headers_dir/usr/include/$host_arch 139 mv $libc_headers_dir/usr/include/asm $libc_headers_dir/usr/include/$host_arch/ 140fi 141 142# Install the maintainer scripts 143# Note: hook scripts under /etc/kernel are also executed by official Debian 144# kernel packages, as well as kernel packages built using make-kpkg. 145# make-kpkg sets $INITRD to indicate whether an initramfs is wanted, and 146# so do we; recent versions of dracut and initramfs-tools will obey this. 147debhookdir=${KDEB_HOOKDIR:-/etc/kernel} 148for script in postinst postrm preinst prerm ; do 149 mkdir -p "$tmpdir$debhookdir/$script.d" 150 cat <<EOF > "$tmpdir/DEBIAN/$script" 151#!/bin/sh 152 153set -e 154 155# Pass maintainer script parameters to hook scripts 156export DEB_MAINT_PARAMS="\$*" 157 158# Tell initramfs builder whether it's wanted 159export INITRD=$(if_enabled_echo CONFIG_BLK_DEV_INITRD Yes No) 160 161test -d $debhookdir/$script.d && run-parts --arg="$version" --arg="/$installed_image_path" $debhookdir/$script.d 162exit 0 163EOF 164 chmod 755 "$tmpdir/DEBIAN/$script" 165done 166 167# Build kernel header package 168(cd $srctree; find . -name Makefile\* -o -name Kconfig\* -o -name \*.pl) > "$objtree/debian/hdrsrcfiles" 169(cd $srctree; find arch/*/include include scripts -type f -o -type l) >> "$objtree/debian/hdrsrcfiles" 170(cd $srctree; find arch/$SRCARCH -name module.lds -o -name Kbuild.platforms -o -name Platform) >> "$objtree/debian/hdrsrcfiles" 171(cd $srctree; find $(find arch/$SRCARCH -name include -o -name scripts -type d) -type f) >> "$objtree/debian/hdrsrcfiles" 172if is_enabled CONFIG_STACK_VALIDATION; then 173 (cd $objtree; find tools/objtool -type f -executable) >> "$objtree/debian/hdrobjfiles" 174fi 175(cd $objtree; find arch/$SRCARCH/include Module.symvers include scripts -type f) >> "$objtree/debian/hdrobjfiles" 176if is_enabled CONFIG_GCC_PLUGINS; then 177 (cd $objtree; find scripts/gcc-plugins -name \*.so -o -name gcc-common.h) >> "$objtree/debian/hdrobjfiles" 178fi 179destdir=$kernel_headers_dir/usr/src/linux-headers-$version 180mkdir -p "$destdir" 181(cd $srctree; tar -c -f - -T -) < "$objtree/debian/hdrsrcfiles" | (cd $destdir; tar -xf -) 182(cd $objtree; tar -c -f - -T -) < "$objtree/debian/hdrobjfiles" | (cd $destdir; tar -xf -) 183(cd $objtree; cp $KCONFIG_CONFIG $destdir/.config) # copy .config manually to be where it's expected to be 184ln -sf "/usr/src/linux-headers-$version" "$kernel_headers_dir/lib/modules/$version/build" 185rm -f "$objtree/debian/hdrsrcfiles" "$objtree/debian/hdrobjfiles" 186 187if [ "$ARCH" != "um" ]; then 188 create_package "$kernel_headers_packagename" "$kernel_headers_dir" 189 create_package "$libc_headers_packagename" "$libc_headers_dir" 190fi 191 192create_package "$packagename" "$tmpdir" 193 194if [ -n "$BUILD_DEBUG" ] ; then 195 # Build debug package 196 # Different tools want the image in different locations 197 # perf 198 mkdir -p $dbg_dir/usr/lib/debug/lib/modules/$version/ 199 cp vmlinux $dbg_dir/usr/lib/debug/lib/modules/$version/ 200 # systemtap 201 mkdir -p $dbg_dir/usr/lib/debug/boot/ 202 ln -s ../lib/modules/$version/vmlinux $dbg_dir/usr/lib/debug/boot/vmlinux-$version 203 # kdump-tools 204 ln -s lib/modules/$version/vmlinux $dbg_dir/usr/lib/debug/vmlinux-$version 205 create_package "$dbg_packagename" "$dbg_dir" 206fi 207 208exit 0 209