238 lines
7.1 KiB
Plaintext
238 lines
7.1 KiB
Plaintext
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#!/bin/sh
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#
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# builddeb 1.3
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# Copyright 2003 Wichert Akkerman <wichert@wiggy.net>
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#
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# Simple script to generate a deb package for a Linux kernel. All the
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# complexity of what to do with a kernel after it is installed or removed
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# is left to other scripts and packages: they can install scripts in the
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# /etc/kernel/{pre,post}{inst,rm}.d/ directories (or an alternative location
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# specified in KDEB_HOOKDIR) that will be called on package install and
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# removal.
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set -e
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is_enabled() {
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grep -q "^$1=y" include/config/auto.conf
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}
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if_enabled_echo() {
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if is_enabled "$1"; then
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echo -n "$2"
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elif [ $# -ge 3 ]; then
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echo -n "$3"
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fi
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}
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create_package() {
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local pname="$1" pdir="$2"
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local dpkg_deb_opts
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mkdir -m 755 -p "$pdir/DEBIAN"
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mkdir -p "$pdir/usr/share/doc/$pname"
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cp debian/copyright "$pdir/usr/share/doc/$pname/"
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cp debian/changelog "$pdir/usr/share/doc/$pname/changelog.Debian"
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gzip -n -9 "$pdir/usr/share/doc/$pname/changelog.Debian"
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sh -c "cd '$pdir'; find . -type f ! -path './DEBIAN/*' -printf '%P\0' \
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| xargs -r0 md5sum > DEBIAN/md5sums"
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# Fix ownership and permissions
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if [ "$DEB_RULES_REQUIRES_ROOT" = "no" ]; then
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dpkg_deb_opts="--root-owner-group"
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else
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chown -R root:root "$pdir"
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fi
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chmod -R go-w "$pdir"
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# in case we are in a restrictive umask environment like 0077
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chmod -R a+rX "$pdir"
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# in case we build in a setuid/setgid directory
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chmod -R ug-s "$pdir"
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# Create the package
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dpkg-gencontrol -p$pname -P"$pdir"
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dpkg-deb $dpkg_deb_opts ${KDEB_COMPRESS:+-Z$KDEB_COMPRESS} --build "$pdir" ..
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}
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deploy_kernel_headers () {
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pdir=$1
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rm -rf $pdir
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(
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cd $srctree
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find . arch/$SRCARCH -maxdepth 1 -name Makefile\*
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find include scripts -type f -o -type l
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find arch/$SRCARCH -name Kbuild.platforms -o -name Platform
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find $(find arch/$SRCARCH -name include -o -name scripts -type d) -type f
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) > debian/hdrsrcfiles
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{
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if is_enabled CONFIG_OBJTOOL; then
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echo tools/objtool/objtool
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fi
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find arch/$SRCARCH/include Module.symvers include scripts -type f
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if is_enabled CONFIG_GCC_PLUGINS; then
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find scripts/gcc-plugins -name \*.so
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fi
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} > debian/hdrobjfiles
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destdir=$pdir/usr/src/linux-headers-$version
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mkdir -p $destdir
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tar -c -f - -C $srctree -T debian/hdrsrcfiles | tar -xf - -C $destdir
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tar -c -f - -T debian/hdrobjfiles | tar -xf - -C $destdir
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rm -f debian/hdrsrcfiles debian/hdrobjfiles
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# copy .config manually to be where it's expected to be
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cp $KCONFIG_CONFIG $destdir/.config
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mkdir -p $pdir/lib/modules/$version/
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ln -s /usr/src/linux-headers-$version $pdir/lib/modules/$version/build
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}
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deploy_libc_headers () {
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pdir=$1
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rm -rf $pdir
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$MAKE -f $srctree/Makefile headers
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$MAKE -f $srctree/Makefile headers_install INSTALL_HDR_PATH=$pdir/usr
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# move asm headers to /usr/include/<libc-machine>/asm to match the structure
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# used by Debian-based distros (to support multi-arch)
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host_arch=$(dpkg-architecture -a$(cat debian/arch) -qDEB_HOST_MULTIARCH)
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mkdir $pdir/usr/include/$host_arch
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mv $pdir/usr/include/asm $pdir/usr/include/$host_arch/
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}
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version=$KERNELRELEASE
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tmpdir=debian/linux-image
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dbg_dir=debian/linux-image-dbg
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packagename=linux-image-$version
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dbg_packagename=$packagename-dbg
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if [ "$ARCH" = "um" ] ; then
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packagename=user-mode-linux-$version
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fi
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# Not all arches have the same installed path in debian
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# XXX: have each arch Makefile export a variable of the canonical image install
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# path instead
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case $ARCH in
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um)
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installed_image_path="usr/bin/linux-$version"
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;;
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parisc|mips|powerpc)
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installed_image_path="boot/vmlinux-$version"
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;;
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*)
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installed_image_path="boot/vmlinuz-$version"
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esac
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BUILD_DEBUG=$(if_enabled_echo CONFIG_DEBUG_INFO Yes)
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# Setup the directory structure
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rm -rf "$tmpdir" "$dbg_dir" debian/files
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mkdir -m 755 -p "$tmpdir/DEBIAN"
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mkdir -p "$tmpdir/lib" "$tmpdir/boot"
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# Install the kernel
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if [ "$ARCH" = "um" ] ; then
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mkdir -p "$tmpdir/usr/lib/uml/modules/$version" "$tmpdir/usr/bin" "$tmpdir/usr/share/doc/$packagename"
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cp System.map "$tmpdir/usr/lib/uml/modules/$version/System.map"
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cp $KCONFIG_CONFIG "$tmpdir/usr/share/doc/$packagename/config"
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gzip "$tmpdir/usr/share/doc/$packagename/config"
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else
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cp System.map "$tmpdir/boot/System.map-$version"
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cp $KCONFIG_CONFIG "$tmpdir/boot/config-$version"
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fi
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cp "$($MAKE -s -f $srctree/Makefile image_name)" "$tmpdir/$installed_image_path"
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if is_enabled CONFIG_OF_EARLY_FLATTREE; then
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# Only some architectures with OF support have this target
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if [ -d "${srctree}/arch/$SRCARCH/boot/dts" ]; then
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$MAKE -f $srctree/Makefile INSTALL_DTBS_PATH="$tmpdir/usr/lib/$packagename" dtbs_install
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fi
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fi
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if is_enabled CONFIG_MODULES; then
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INSTALL_MOD_PATH="$tmpdir" $MAKE -f $srctree/Makefile modules_install
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rm -f "$tmpdir/lib/modules/$version/build"
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rm -f "$tmpdir/lib/modules/$version/source"
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if [ "$ARCH" = "um" ] ; then
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mv "$tmpdir/lib/modules/$version"/* "$tmpdir/usr/lib/uml/modules/$version/"
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rmdir "$tmpdir/lib/modules/$version"
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fi
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if [ -n "$BUILD_DEBUG" ] ; then
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for module in $(find $tmpdir/lib/modules/ -name *.ko -printf '%P\n'); do
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module=lib/modules/$module
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mkdir -p $(dirname $dbg_dir/usr/lib/debug/$module)
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# only keep debug symbols in the debug file
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$OBJCOPY --only-keep-debug $tmpdir/$module $dbg_dir/usr/lib/debug/$module
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# strip original module from debug symbols
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$OBJCOPY --strip-debug $tmpdir/$module
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# then add a link to those
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$OBJCOPY --add-gnu-debuglink=$dbg_dir/usr/lib/debug/$module $tmpdir/$module
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done
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# resign stripped modules
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if is_enabled CONFIG_MODULE_SIG_ALL; then
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INSTALL_MOD_PATH="$tmpdir" $MAKE -f $srctree/Makefile modules_sign
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fi
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fi
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fi
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# Install the maintainer scripts
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# Note: hook scripts under /etc/kernel are also executed by official Debian
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# kernel packages, as well as kernel packages built using make-kpkg.
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# make-kpkg sets $INITRD to indicate whether an initramfs is wanted, and
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# so do we; recent versions of dracut and initramfs-tools will obey this.
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debhookdir=${KDEB_HOOKDIR:-/etc/kernel}
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for script in postinst postrm preinst prerm ; do
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mkdir -p "$tmpdir$debhookdir/$script.d"
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cat <<EOF > "$tmpdir/DEBIAN/$script"
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#!/bin/sh
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set -e
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# Pass maintainer script parameters to hook scripts
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export DEB_MAINT_PARAMS="\$*"
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# Tell initramfs builder whether it's wanted
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export INITRD=$(if_enabled_echo CONFIG_BLK_DEV_INITRD Yes No)
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test -d $debhookdir/$script.d && run-parts --arg="$version" --arg="/$installed_image_path" $debhookdir/$script.d
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exit 0
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EOF
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chmod 755 "$tmpdir/DEBIAN/$script"
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done
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if [ "$ARCH" != "um" ]; then
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if is_enabled CONFIG_MODULES; then
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deploy_kernel_headers debian/linux-headers
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create_package linux-headers-$version debian/linux-headers
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fi
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deploy_libc_headers debian/linux-libc-dev
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create_package linux-libc-dev debian/linux-libc-dev
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fi
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create_package "$packagename" "$tmpdir"
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if [ -n "$BUILD_DEBUG" ] ; then
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# Build debug package
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# Different tools want the image in different locations
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# perf
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mkdir -p $dbg_dir/usr/lib/debug/lib/modules/$version/
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cp vmlinux $dbg_dir/usr/lib/debug/lib/modules/$version/
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# systemtap
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mkdir -p $dbg_dir/usr/lib/debug/boot/
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ln -s ../lib/modules/$version/vmlinux $dbg_dir/usr/lib/debug/boot/vmlinux-$version
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# kdump-tools
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ln -s lib/modules/$version/vmlinux $dbg_dir/usr/lib/debug/vmlinux-$version
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create_package "$dbg_packagename" "$dbg_dir"
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fi
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exit 0
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