4 # Copyright 2003 Wichert Akkerman <wichert@wiggy.net>
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
16 grep -q "^$1=y" include/config/auto.conf
20 if is_enabled "$1"; then
22 elif [ $# -ge 3 ]; then
28 local pname="$1" pdir="$2"
31 mkdir -m 755 -p "$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 '$pdir'; find . -type f ! -path './DEBIAN/*' -printf '%P\0' \
37 | xargs -r0 md5sum > DEBIAN/md5sums"
39 # Fix ownership and permissions
40 if [ "$DEB_RULES_REQUIRES_ROOT" = "no" ]; then
41 dpkg_deb_opts="--root-owner-group"
43 chown -R root:root "$pdir"
46 # in case we are in a restrictive umask environment like 0077
50 dpkg-gencontrol -p$pname -P"$pdir"
51 dpkg-deb $dpkg_deb_opts ${KDEB_COMPRESS:+-Z$KDEB_COMPRESS} --build "$pdir" ..
54 deploy_kernel_headers () {
61 find . arch/$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
68 if is_enabled CONFIG_STACK_VALIDATION; then
69 echo tools/objtool/objtool
72 find arch/$SRCARCH/include Module.symvers include scripts -type f
74 if is_enabled CONFIG_GCC_PLUGINS; then
75 find scripts/gcc-plugins -name \*.so
77 } > debian/hdrobjfiles
79 destdir=$pdir/usr/src/linux-headers-$version
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
85 # copy .config manually to be where it's expected to be
86 cp $KCONFIG_CONFIG $destdir/.config
88 mkdir -p $pdir/lib/modules/$version/
89 ln -s /usr/src/linux-headers-$version $pdir/lib/modules/$version/build
92 deploy_libc_headers () {
97 $MAKE -f $srctree/Makefile headers
98 $MAKE -f $srctree/Makefile headers_install INSTALL_HDR_PATH=$pdir/usr
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/
107 version=$KERNELRELEASE
108 tmpdir=debian/linux-image
109 dbg_dir=debian/linux-image-dbg
110 packagename=linux-image-$version
111 dbg_packagename=$packagename-dbg
113 if [ "$ARCH" = "um" ] ; then
114 packagename=user-mode-linux-$version
117 # Not all arches have the same installed path in debian
118 # XXX: have each arch Makefile export a variable of the canonical image install
122 installed_image_path="usr/bin/linux-$version"
125 installed_image_path="boot/vmlinux-$version"
128 installed_image_path="boot/vmlinuz-$version"
131 BUILD_DEBUG=$(if_enabled_echo CONFIG_DEBUG_INFO Yes)
133 # Setup the directory structure
134 rm -rf "$tmpdir" "$dbg_dir" debian/files
135 mkdir -m 755 -p "$tmpdir/DEBIAN"
136 mkdir -p "$tmpdir/lib" "$tmpdir/boot"
139 if [ "$ARCH" = "um" ] ; then
140 mkdir -p "$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/$packagename/config"
145 cp System.map "$tmpdir/boot/System.map-$version"
146 cp $KCONFIG_CONFIG "$tmpdir/boot/config-$version"
148 cp "$($MAKE -s -f $srctree/Makefile image_name)" "$tmpdir/$installed_image_path"
150 if is_enabled CONFIG_OF_EARLY_FLATTREE; then
151 # Only some architectures with OF support have this target
152 if [ -d "${srctree}/arch/$SRCARCH/boot/dts" ]; then
153 $MAKE -f $srctree/Makefile INSTALL_DTBS_PATH="$tmpdir/usr/lib/$packagename" dtbs_install
157 if is_enabled CONFIG_MODULES; then
158 INSTALL_MOD_PATH="$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"
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
177 # resign stripped modules
178 if is_enabled CONFIG_MODULE_SIG_ALL; then
179 INSTALL_MOD_PATH="$tmpdir" $MAKE -f $srctree/Makefile modules_sign
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 $INITRD to indicate whether an initramfs is wanted, and
188 # so do we; recent versions of dracut and initramfs-tools will obey this.
189 debhookdir=${KDEB_HOOKDIR:-/etc/kernel}
190 for script in postinst postrm preinst prerm ; do
191 mkdir -p "$tmpdir$debhookdir/$script.d"
192 cat <<EOF > "$tmpdir/DEBIAN/$script"
197 # Pass maintainer script parameters to hook scripts
198 export DEB_MAINT_PARAMS="\$*"
200 # Tell initramfs builder whether it's wanted
201 export INITRD=$(if_enabled_echo CONFIG_BLK_DEV_INITRD Yes No)
203 test -d $debhookdir/$script.d && run-parts --arg="$version" --arg="/$installed_image_path" $debhookdir/$script.d
206 chmod 755 "$tmpdir/DEBIAN/$script"
209 if [ "$ARCH" != "um" ]; then
210 if is_enabled CONFIG_MODULES; then
211 deploy_kernel_headers debian/linux-headers
212 create_package linux-headers-$version debian/linux-headers
215 deploy_libc_headers debian/linux-libc-dev
216 create_package linux-libc-dev debian/linux-libc-dev
219 create_package "$packagename" "$tmpdir"
221 if [ -n "$BUILD_DEBUG" ] ; then
222 # Build debug package
223 # Different tools want the image in different locations
225 mkdir -p $dbg_dir/usr/lib/debug/lib/modules/$version/
226 cp vmlinux $dbg_dir/usr/lib/debug/lib/modules/$version/
228 mkdir -p $dbg_dir/usr/lib/debug/boot/
229 ln -s ../lib/modules/$version/vmlinux $dbg_dir/usr/lib/debug/boot/vmlinux-$version
231 ln -s lib/modules/$version/vmlinux $dbg_dir/usr/lib/debug/vmlinux-$version
232 create_package "$dbg_packagename" "$dbg_dir"