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 15create_package() { 16 local pname="$1" pdir="$2" 17 18 mkdir -m 755 -p "$pdir/DEBIAN" 19 mkdir -p "$pdir/usr/share/doc/$pname" 20 cp debian/copyright "$pdir/usr/share/doc/$pname/" 21 cp debian/changelog "$pdir/usr/share/doc/$pname/changelog.Debian" 22 gzip -9 "$pdir/usr/share/doc/$pname/changelog.Debian" 23 sh -c "cd '$pdir'; find . -type f ! -path './DEBIAN/*' -printf '%P\0' \ 24 | xargs -r0 md5sum > DEBIAN/md5sums" 25 26 # Fix ownership and permissions 27 chown -R root:root "$pdir" 28 chmod -R go-w "$pdir" 29 # in case we are in a restrictive umask environment like 0077 30 chmod -R a+rX "$pdir" 31 32 # Create the package 33 dpkg-gencontrol -p$pname -P"$pdir" 34 dpkg --build "$pdir" .. 35} 36 37version=$KERNELRELEASE 38tmpdir="$objtree/debian/tmp" 39kernel_headers_dir="$objtree/debian/hdrtmp" 40libc_headers_dir="$objtree/debian/headertmp" 41dbg_dir="$objtree/debian/dbgtmp" 42packagename=linux-image-$version 43kernel_headers_packagename=linux-headers-$version 44libc_headers_packagename=linux-libc-dev 45dbg_packagename=$packagename-dbg 46 47if [ "$ARCH" = "um" ] ; then 48 packagename=user-mode-linux-$version 49fi 50 51# Not all arches have the same installed path in debian 52# XXX: have each arch Makefile export a variable of the canonical image install 53# path instead 54case $ARCH in 55um) 56 installed_image_path="usr/bin/linux-$version" 57 ;; 58parisc|mips|powerpc) 59 installed_image_path="boot/vmlinux-$version" 60 ;; 61*) 62 installed_image_path="boot/vmlinuz-$version" 63esac 64 65BUILD_DEBUG="$(grep -s '^CONFIG_DEBUG_INFO=y' $KCONFIG_CONFIG || true)" 66 67# Setup the directory structure 68rm -rf "$tmpdir" "$kernel_headers_dir" "$libc_headers_dir" "$dbg_dir" $objtree/debian/files 69mkdir -m 755 -p "$tmpdir/DEBIAN" 70mkdir -p "$tmpdir/lib" "$tmpdir/boot" 71mkdir -p "$kernel_headers_dir/lib/modules/$version/" 72 73# Build and install the kernel 74if [ "$ARCH" = "um" ] ; then 75 mkdir -p "$tmpdir/usr/lib/uml/modules/$version" "$tmpdir/usr/bin" "$tmpdir/usr/share/doc/$packagename" 76 $MAKE linux 77 cp System.map "$tmpdir/usr/lib/uml/modules/$version/System.map" 78 cp $KCONFIG_CONFIG "$tmpdir/usr/share/doc/$packagename/config" 79 gzip "$tmpdir/usr/share/doc/$packagename/config" 80else 81 cp System.map "$tmpdir/boot/System.map-$version" 82 cp $KCONFIG_CONFIG "$tmpdir/boot/config-$version" 83fi 84cp "$($MAKE -s image_name)" "$tmpdir/$installed_image_path" 85 86if grep -q "^CONFIG_OF=y" $KCONFIG_CONFIG ; then 87 # Only some architectures with OF support have this target 88 if grep -q dtbs_install "${srctree}/arch/$SRCARCH/Makefile"; then 89 $MAKE KBUILD_SRC= INSTALL_DTBS_PATH="$tmpdir/usr/lib/$packagename" dtbs_install 90 fi 91fi 92 93if grep -q '^CONFIG_MODULES=y' $KCONFIG_CONFIG ; then 94 INSTALL_MOD_PATH="$tmpdir" $MAKE KBUILD_SRC= modules_install 95 rm -f "$tmpdir/lib/modules/$version/build" 96 rm -f "$tmpdir/lib/modules/$version/source" 97 if [ "$ARCH" = "um" ] ; then 98 mv "$tmpdir/lib/modules/$version"/* "$tmpdir/usr/lib/uml/modules/$version/" 99 rmdir "$tmpdir/lib/modules/$version" 100 fi 101 if [ -n "$BUILD_DEBUG" ] ; then 102 for module in $(find $tmpdir/lib/modules/ -name *.ko -printf '%P\n'); do 103 module=lib/modules/$module 104 mkdir -p $(dirname $dbg_dir/usr/lib/debug/$module) 105 # only keep debug symbols in the debug file 106 $OBJCOPY --only-keep-debug $tmpdir/$module $dbg_dir/usr/lib/debug/$module 107 # strip original module from debug symbols 108 $OBJCOPY --strip-debug $tmpdir/$module 109 # then add a link to those 110 $OBJCOPY --add-gnu-debuglink=$dbg_dir/usr/lib/debug/$module $tmpdir/$module 111 done 112 113 # resign stripped modules 114 MODULE_SIG_ALL="$(grep -s '^CONFIG_MODULE_SIG_ALL=y' $KCONFIG_CONFIG || true)" 115 if [ -n "$MODULE_SIG_ALL" ]; then 116 INSTALL_MOD_PATH="$tmpdir" $MAKE KBUILD_SRC= modules_sign 117 fi 118 fi 119fi 120 121if [ "$ARCH" != "um" ]; then 122 $MAKE headers_check KBUILD_SRC= 123 $MAKE headers_install KBUILD_SRC= INSTALL_HDR_PATH="$libc_headers_dir/usr" 124fi 125 126# Install the maintainer scripts 127# Note: hook scripts under /etc/kernel are also executed by official Debian 128# kernel packages, as well as kernel packages built using make-kpkg. 129# make-kpkg sets $INITRD to indicate whether an initramfs is wanted, and 130# so do we; recent versions of dracut and initramfs-tools will obey this. 131debhookdir=${KDEB_HOOKDIR:-/etc/kernel} 132if grep -q '^CONFIG_BLK_DEV_INITRD=y' $KCONFIG_CONFIG; then 133 want_initrd=Yes 134else 135 want_initrd=No 136fi 137for script in postinst postrm preinst prerm ; do 138 mkdir -p "$tmpdir$debhookdir/$script.d" 139 cat <<EOF > "$tmpdir/DEBIAN/$script" 140#!/bin/sh 141 142set -e 143 144# Pass maintainer script parameters to hook scripts 145export DEB_MAINT_PARAMS="\$*" 146 147# Tell initramfs builder whether it's wanted 148export INITRD=$want_initrd 149 150test -d $debhookdir/$script.d && run-parts --arg="$version" --arg="/$installed_image_path" $debhookdir/$script.d 151exit 0 152EOF 153 chmod 755 "$tmpdir/DEBIAN/$script" 154done 155 156# Build kernel header package 157(cd $srctree; find . -name Makefile\* -o -name Kconfig\* -o -name \*.pl) > "$objtree/debian/hdrsrcfiles" 158(cd $srctree; find arch/*/include include scripts -type f -o -type l) >> "$objtree/debian/hdrsrcfiles" 159(cd $srctree; find arch/$SRCARCH -name module.lds -o -name Kbuild.platforms -o -name Platform) >> "$objtree/debian/hdrsrcfiles" 160(cd $srctree; find $(find arch/$SRCARCH -name include -o -name scripts -type d) -type f) >> "$objtree/debian/hdrsrcfiles" 161if grep -q '^CONFIG_STACK_VALIDATION=y' $KCONFIG_CONFIG ; then 162 (cd $objtree; find tools/objtool -type f -executable) >> "$objtree/debian/hdrobjfiles" 163fi 164(cd $objtree; find arch/$SRCARCH/include Module.symvers include scripts -type f) >> "$objtree/debian/hdrobjfiles" 165if grep -q '^CONFIG_GCC_PLUGINS=y' $KCONFIG_CONFIG ; then 166 (cd $objtree; find scripts/gcc-plugins -name \*.so -o -name gcc-common.h) >> "$objtree/debian/hdrobjfiles" 167fi 168destdir=$kernel_headers_dir/usr/src/linux-headers-$version 169mkdir -p "$destdir" 170(cd $srctree; tar -c -f - -T -) < "$objtree/debian/hdrsrcfiles" | (cd $destdir; tar -xf -) 171(cd $objtree; tar -c -f - -T -) < "$objtree/debian/hdrobjfiles" | (cd $destdir; tar -xf -) 172(cd $objtree; cp $KCONFIG_CONFIG $destdir/.config) # copy .config manually to be where it's expected to be 173ln -sf "/usr/src/linux-headers-$version" "$kernel_headers_dir/lib/modules/$version/build" 174rm -f "$objtree/debian/hdrsrcfiles" "$objtree/debian/hdrobjfiles" 175 176if [ "$ARCH" != "um" ]; then 177 create_package "$kernel_headers_packagename" "$kernel_headers_dir" 178 create_package "$libc_headers_packagename" "$libc_headers_dir" 179fi 180 181create_package "$packagename" "$tmpdir" 182 183if [ -n "$BUILD_DEBUG" ] ; then 184 # Build debug package 185 # Different tools want the image in different locations 186 # perf 187 mkdir -p $dbg_dir/usr/lib/debug/lib/modules/$version/ 188 cp vmlinux $dbg_dir/usr/lib/debug/lib/modules/$version/ 189 # systemtap 190 mkdir -p $dbg_dir/usr/lib/debug/boot/ 191 ln -s ../lib/modules/$version/vmlinux $dbg_dir/usr/lib/debug/boot/vmlinux-$version 192 # kdump-tools 193 ln -s lib/modules/$version/vmlinux $dbg_dir/usr/lib/debug/vmlinux-$version 194 create_package "$dbg_packagename" "$dbg_dir" 195fi 196 197exit 0 198