374 lines
12 KiB
Bash
374 lines
12 KiB
Bash
#!/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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create_package() {
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local pname="$1" pdir="$2"
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cp debian/copyright "$pdir/usr/share/doc/$pname/"
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cp debian/changelog "$pdir/usr/share/doc/$pname/changelog.Debian"
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gzip -9 "$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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chown -R root:root "$pdir"
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chmod -R go-w "$pdir"
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# Attempt to find the correct Debian architecture
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local forcearch="" debarch=""
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case "$UTS_MACHINE" in
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i386|ia64|alpha)
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debarch="$UTS_MACHINE" ;;
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x86_64)
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debarch=amd64 ;;
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sparc*)
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debarch=sparc ;;
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s390*)
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debarch=s390 ;;
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ppc*)
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debarch=powerpc ;;
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parisc*)
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debarch=hppa ;;
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mips*)
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debarch=mips$(grep -q CPU_LITTLE_ENDIAN=y $KCONFIG_CONFIG && echo el || true) ;;
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arm*)
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debarch=arm$(grep -q CONFIG_AEABI=y $KCONFIG_CONFIG && echo el || true) ;;
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*)
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echo "" >&2
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echo "** ** ** WARNING ** ** **" >&2
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echo "" >&2
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echo "Your architecture doesn't have it's equivalent" >&2
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echo "Debian userspace architecture defined!" >&2
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echo "Falling back to using your current userspace instead!" >&2
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echo "Please add support for $UTS_MACHINE to ${0} ..." >&2
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echo "" >&2
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esac
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if [ -n "$KBUILD_DEBARCH" ] ; then
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debarch="$KBUILD_DEBARCH"
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fi
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if [ -n "$debarch" ] ; then
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forcearch="-DArchitecture=$debarch"
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fi
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# Create the package
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dpkg-gencontrol -isp $forcearch -Vkernel:debarch="${debarch:-$(dpkg --print-architecture)}" -p$pname -P"$pdir"
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dpkg --build "$pdir" ..
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}
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# Some variables and settings used throughout the script
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version=$KERNELRELEASE
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revision=$(cat .version)
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if [ -n "$KDEB_PKGVERSION" ]; then
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packageversion=$KDEB_PKGVERSION
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else
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packageversion=$version-$revision
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fi
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tmpdir="$objtree/debian/tmp"
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fwdir="$objtree/debian/fwtmp"
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kernel_headers_dir="$objtree/debian/hdrtmp"
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libc_headers_dir="$objtree/debian/headertmp"
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dbg_dir="$objtree/debian/dbgtmp"
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packagename=linux-image-$version
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fwpackagename=linux-firmware-image-$version
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kernel_headers_packagename=linux-headers-$version
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libc_headers_packagename=linux-libc-dev
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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="$(grep -s '^CONFIG_DEBUG_INFO=y' $KCONFIG_CONFIG || true)"
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# Setup the directory structure
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rm -rf "$tmpdir" "$fwdir" "$kernel_headers_dir" "$libc_headers_dir" "$dbg_dir"
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mkdir -m 755 -p "$tmpdir/DEBIAN"
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mkdir -p "$tmpdir/lib" "$tmpdir/boot" "$tmpdir/usr/share/doc/$packagename"
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mkdir -m 755 -p "$fwdir/DEBIAN"
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mkdir -p "$fwdir/lib/firmware/$version/" "$fwdir/usr/share/doc/$fwpackagename"
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mkdir -m 755 -p "$libc_headers_dir/DEBIAN"
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mkdir -p "$libc_headers_dir/usr/share/doc/$libc_headers_packagename"
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mkdir -m 755 -p "$kernel_headers_dir/DEBIAN"
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mkdir -p "$kernel_headers_dir/usr/share/doc/$kernel_headers_packagename"
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mkdir -p "$kernel_headers_dir/lib/modules/$version/"
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if [ "$ARCH" = "um" ] ; then
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mkdir -p "$tmpdir/usr/lib/uml/modules/$version" "$tmpdir/usr/bin"
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fi
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if [ -n "$BUILD_DEBUG" ] ; then
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mkdir -p "$dbg_dir/usr/share/doc/$dbg_packagename"
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mkdir -m 755 -p "$dbg_dir/DEBIAN"
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fi
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# Build and install the kernel
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if [ "$ARCH" = "um" ] ; then
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$MAKE linux
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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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# Not all arches include the boot path in KBUILD_IMAGE
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if [ -e $KBUILD_IMAGE ]; then
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cp $KBUILD_IMAGE "$tmpdir/$installed_image_path"
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else
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cp arch/$ARCH/boot/$KBUILD_IMAGE "$tmpdir/$installed_image_path"
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fi
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if grep -q '^CONFIG_MODULES=y' $KCONFIG_CONFIG ; then
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INSTALL_MOD_PATH="$tmpdir" $MAKE KBUILD_SRC= modules_install
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rm -f "$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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(
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cd $tmpdir
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for module in $(find lib/modules/ -name *.ko); do
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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 $module $dbg_dir/usr/lib/debug/$module
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# strip original module from debug symbols
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objcopy --strip-debug $module
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# then add a link to those
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objcopy --add-gnu-debuglink=$dbg_dir/usr/lib/debug/$module $module
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done
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)
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fi
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fi
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if [ "$ARCH" != "um" ]; then
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$MAKE headers_check KBUILD_SRC=
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$MAKE headers_install KBUILD_SRC= INSTALL_HDR_PATH="$libc_headers_dir/usr"
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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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if grep -q '^CONFIG_BLK_DEV_INITRD=y' $KCONFIG_CONFIG; then
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want_initrd=Yes
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else
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want_initrd=No
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fi
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for script in postinst postrm preinst prerm ; do
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mkdir -p "$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=$want_initrd
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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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# Try to determine maintainer and email values
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if [ -n "$DEBEMAIL" ]; then
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email=$DEBEMAIL
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elif [ -n "$EMAIL" ]; then
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email=$EMAIL
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else
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email=$(id -nu)@$(hostname -f)
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fi
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if [ -n "$DEBFULLNAME" ]; then
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name=$DEBFULLNAME
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elif [ -n "$NAME" ]; then
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name=$NAME
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else
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name="Anonymous"
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fi
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maintainer="$name <$email>"
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# Generate a simple changelog template
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cat <<EOF > debian/changelog
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linux-upstream ($packageversion) unstable; urgency=low
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* Custom built Linux kernel.
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-- $maintainer $(date -R)
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EOF
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# Generate copyright file
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cat <<EOF > debian/copyright
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This is a packacked upstream version of the Linux kernel.
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The sources may be found at most Linux ftp sites, including:
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ftp://ftp.kernel.org/pub/linux/kernel
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Copyright: 1991 - 2009 Linus Torvalds and others.
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The git repository for mainline kernel development is at:
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git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 dated June, 1991.
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On Debian GNU/Linux systems, the complete text of the GNU General Public
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License version 2 can be found in \`/usr/share/common-licenses/GPL-2'.
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EOF
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# Generate a control file
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cat <<EOF > debian/control
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Source: linux-upstream
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Section: kernel
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Priority: optional
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Maintainer: $maintainer
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Standards-Version: 3.8.4
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Homepage: http://www.kernel.org/
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EOF
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if [ "$ARCH" = "um" ]; then
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cat <<EOF >> debian/control
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Package: $packagename
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Provides: linux-image, linux-image-2.6, linux-modules-$version
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Architecture: any
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Description: User Mode Linux kernel, version $version
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User-mode Linux is a port of the Linux kernel to its own system call
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interface. It provides a kind of virtual machine, which runs Linux
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as a user process under another Linux kernel. This is useful for
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kernel development, sandboxes, jails, experimentation, and
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many other things.
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.
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This package contains the Linux kernel, modules and corresponding other
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files, version: $version.
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EOF
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else
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cat <<EOF >> debian/control
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Package: $packagename
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Provides: linux-image, linux-image-2.6, linux-modules-$version
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Suggests: $fwpackagename
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Architecture: any
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Description: Linux kernel, version $version
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This package contains the Linux kernel, modules and corresponding other
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files, version: $version.
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EOF
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fi
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# Build header package
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(cd $srctree; find . -name Makefile\* -o -name Kconfig\* -o -name \*.pl > "$objtree/debian/hdrsrcfiles")
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(cd $srctree; find arch/$SRCARCH/include include scripts -type f >> "$objtree/debian/hdrsrcfiles")
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(cd $objtree; find arch/$SRCARCH/include Module.symvers include scripts -type f >> "$objtree/debian/hdrobjfiles")
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destdir=$kernel_headers_dir/usr/src/linux-headers-$version
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mkdir -p "$destdir"
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(cd $srctree; tar -c -f - -T "$objtree/debian/hdrsrcfiles") | (cd $destdir; tar -xf -)
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(cd $objtree; tar -c -f - -T "$objtree/debian/hdrobjfiles") | (cd $destdir; tar -xf -)
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(cd $objtree; cp $KCONFIG_CONFIG $destdir/.config) # copy .config manually to be where it's expected to be
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ln -sf "/usr/src/linux-headers-$version" "$kernel_headers_dir/lib/modules/$version/build"
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rm -f "$objtree/debian/hdrsrcfiles" "$objtree/debian/hdrobjfiles"
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cat <<EOF >> debian/control
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Package: $kernel_headers_packagename
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Provides: linux-headers, linux-headers-2.6
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Architecture: any
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Description: Linux kernel headers for $KERNELRELEASE on \${kernel:debarch}
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This package provides kernel header files for $KERNELRELEASE on \${kernel:debarch}
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.
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This is useful for people who need to build external modules
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EOF
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# Do we have firmware? Move it out of the way and build it into a package.
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if [ -e "$tmpdir/lib/firmware" ]; then
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mv "$tmpdir/lib/firmware"/* "$fwdir/lib/firmware/$version/"
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rmdir "$tmpdir/lib/firmware"
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cat <<EOF >> debian/control
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Package: $fwpackagename
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Architecture: all
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Description: Linux kernel firmware, version $version
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This package contains firmware from the Linux kernel, version $version.
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EOF
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create_package "$fwpackagename" "$fwdir"
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fi
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cat <<EOF >> debian/control
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Package: $libc_headers_packagename
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Section: devel
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Provides: linux-kernel-headers
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Architecture: any
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Description: Linux support headers for userspace development
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This package provides userspaces headers from the Linux kernel. These headers
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are used by the installed headers for GNU glibc and other system libraries.
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EOF
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if [ "$ARCH" != "um" ]; then
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create_package "$kernel_headers_packagename" "$kernel_headers_dir"
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create_package "$libc_headers_packagename" "$libc_headers_dir"
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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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cat <<EOF >> debian/control
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Package: $dbg_packagename
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Section: debug
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Provides: linux-debug, linux-debug-$version
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Architecture: any
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Description: Linux kernel debugging symbols for $version
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This package will come in handy if you need to debug the kernel. It provides
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all the necessary debug symbols for the kernel and its modules.
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EOF
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create_package "$dbg_packagename" "$dbg_dir"
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fi
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exit 0
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