#!/bin/sh
#
# builddeb 1.3
# Copyright 2003 Wichert Akkerman <wichert@wiggy.net>
#
# Simple script to generate a deb package for a Linux kernel. All the
# complexity of what to do with a kernel after it is installed or removed
# is left to other scripts and packages: they can install scripts in the
# /etc/kernel/{pre,post}{inst,rm}.d/ directories (or an alternative location
# specified in KDEB_HOOKDIR) that will be called on package install and
# removal.
set -e
create_package() {
local pname="$1" pdir="$2"
cp debian/copyright "$pdir/usr/share/doc/$pname/"
cp debian/changelog "$pdir/usr/share/doc/$pname/changelog.Debian"
gzip -9 "$pdir/usr/share/doc/$pname/changelog.Debian"
sh -c "cd '$pdir'; find . -type f ! -path './DEBIAN/*' -printf '%P\0' \
| xargs -r0 md5sum > DEBIAN/md5sums"
# Fix ownership and permissions
chown -R root:root "$pdir"
chmod -R go-w "$pdir"
# Attempt to find the correct Debian architecture
local forcearch="" debarch=""
case "$UTS_MACHINE" in
i386|ia64|alpha)
debarch="$UTS_MACHINE" ;;
x86_64)
debarch=amd64 ;;
sparc*)
debarch=sparc ;;
s390*)
debarch=s390 ;;
ppc*)
debarch=powerpc ;;
parisc*)
debarch=hppa ;;
mips*)
debarch=mips$(grep -q CPU_LITTLE_ENDIAN=y .config && echo el) ;;
arm*)
debarch=arm$(grep -q CONFIG_AEABI=y .config && echo el) ;;
*)
echo "" >&2
echo "** ** ** WARNING ** ** **" >&2
echo "" >&2
echo "Your architecture doesn't have it's equivalent" >&2
echo "Debian userspace architecture defined!" >&2
echo "Falling back to using your current userspace instead!" >&2
echo "Please add support for $UTS_MACHINE to ${0} ..." >&2
echo "" >&2
esac
if [ -n "$KBUILD_DEBARCH" ] ; then
debarch="$KBUILD_DEBARCH"
fi
if [ -n "$debarch" ] ; then
forcearch="-DArchitecture=$debarch"
fi
# Create the package
dpkg-gencontrol -isp $forcearch -p$pname -P"$pdir"
dpkg --build "$pdir" ..
}
# Some variables and settings used throughout the script
version=$KERNELRELEASE
revision=$(cat .version)
if [ -n "$KDEB_PKGVERSION" ]; then
packageversion=$KDEB_PKGVERSION
else
packageversion=$version-$revision
fi
tmpdir="$objtree/debian/tmp"
fwdir="$objtree/debian/fwtmp"
hdrdir="$objtree/debian/hdrtmp"
packagename=linux-image-$version
fwpackagename=linux-firmware-image
hdrpackagename=linux-headers-$version
if [ "$ARCH" = "um" ] ; then
packagename=user-mode-linux-$version
fi
# Setup the directory structure
rm -rf "$tmpdir" "$fwdir" "$hdrdir"
mkdir -m 755 -p "$tmpdir/DEBIAN"
mkdir -p "$tmpdir/lib" "$tmpdir/boot" "$tmpdir/usr/share/doc/$packagename"
mkdir -m 755 -p "$fwdir/DEBIAN"
mkdir -p "$fwdir/lib" "$fwdir/usr/share/doc/$fwpackagename"
if [ "$ARCH" = "um" ] ; then
mkdir -p "$tmpdir/usr/lib/uml/modules/$version" "$tmpdir/usr/bin"
fi
# Build and install the kernel
if [ "$ARCH" = "um" ] ; then
$MAKE linux
cp System.map "$tmpdir/usr/lib/uml/modules/$version/System.map"
cp .config "$tmpdir/usr/share/doc/$packagename/config"
gzip "$tmpdir/usr/share/doc/$packagename/config"
cp $KBUILD_IMAGE "$tmpdir/usr/bin/linux-$version"
else
cp System.map "$tmpdir/boot/System.map-$version"
cp .config "$tmpdir/boot/config-$version"
# Not all arches include the boot path in KBUILD_IMAGE
if [ -e $KBUILD_IMAGE ]; then
cp $KBUILD_IMAGE "$tmpdir/boot/vmlinuz-$version"
else
cp arch/$ARCH/boot/$KBUILD_IMAGE "$tmpdir/boot/vmlinuz-$version"
fi
fi
if grep -q '^CONFIG_MODULES=y' .config ; then
INSTALL_MOD_PATH="$tmpdir" make KBUILD_SRC= modules_install
if [ "$ARCH" = "um" ] ; then
mv "$tmpdir/lib/modules/$version"/* "$tmpdir/usr/lib/uml/modules/$version/"
rmdir "$tmpdir/lib/modules/$version"
fi
fi
# Install the maintainer scripts
# Note: hook scripts under /etc/kernel are also executed by official Debian
# kernel packages, as well as kernel packages built using make-kpkg
debhookdir=${KDEB_HOOKDIR:-/etc/kernel}
for script in postinst postrm preinst prerm ; do
mkdir -p "$tmpdir$debhookdir/$script.d"
cat <<EOF > "$tmpdir/DEBIAN/$script"
#!/bin/sh
set -e
# Pass maintainer script parameters to hook scripts
export DEB_MAINT_PARAMS="\$*"
test -d $debhookdir/$script.d && run-parts --arg="$version" $debhookdir/$script.d
exit 0
EOF
chmod 755 "$tmpdir/DEBIAN/$script"
done
# Try to determine maintainer and email values
if [ -n "$DEBEMAIL" ]; then
email=$DEBEMAIL
elif [ -n "$EMAIL" ]; then
email=$EMAIL
else
email=$(id -nu)@$(hostname -f)
fi
if [ -n "$DEBFULLNAME" ]; then
name=$DEBFULLNAME
elif [ -n "$NAME" ]; then
name=$NAME
else
name="Anonymous"
fi
maintainer="$name <$email>"
# Generate a simple changelog template
cat <<EOF > debian/changelog
linux-upstream ($packageversion) unstable; urgency=low
* Custom built Linux kernel.
-- $maintainer $(date -R)
EOF
# Generate copyright file
cat <<EOF > debian/copyright
This is a packacked upstream version of the Linux kernel.
The sources may be found at most Linux ftp sites, including:
ftp://ftp.kernel.org/pub/linux/kernel
Copyright: 1991 - 2009 Linus Torvalds and others.
The git repository for mainline kernel development is at:
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 dated June, 1991.
On Debian GNU/Linux systems, the complete text of the GNU General Public
License version 2 can be found in \`/usr/share/common-licenses/GPL-2'.
EOF
# Generate a control file
cat <<EOF > debian/control
Source: linux-upstream
Section: kernel
Priority: optional
Maintainer: $maintainer
Standards-Version: 3.8.4
Homepage: http://www.kernel.org/
EOF
if [ "$ARCH" = "um" ]; then
cat <<EOF >> debian/control
Package: $packagename
Provides: linux-image, linux-image-2.6, linux-modules-$version
Architecture: any
Description: User Mode Linux kernel, version $version
User-mode Linux is a port of the Linux kernel to its own system call
interface. It provides a kind of virtual machine, which runs Linux
as a user process under another Linux kernel. This is useful for
kernel development, sandboxes, jails, experimentation, and
many other things.
.
This package contains the Linux kernel, modules and corresponding other
files, version: $version.
EOF
else
cat <<EOF >> debian/control
Package: $packagename
Provides: linux-image, linux-image-2.6, linux-modules-$version
Suggests: $fwpackagename
Architecture: any
Description: Linux kernel, version $version
This package contains the Linux kernel, modules and corresponding other
files, version: $version.
EOF
fi
# Build header package
find . -name Makefile -o -name Kconfig\* -o -name \*.pl > /tmp/files$$
find arch/x86/include include scripts -type f >> /tmp/files$$
(cd $objtree; find .config Module.symvers include scripts -type f >> /tmp/objfiles$$)
destdir=$hdrdir/usr/src/linux-headers-$version
mkdir -p "$destdir" "$hdrdir/DEBIAN" "$hdrdir/usr/share/doc/$hdrpackagename"
tar -c -f - -T /tmp/files$$ | (cd $destdir; tar -xf -)
(cd $objtree; tar -c -f - -T /tmp/objfiles$$) | (cd $destdir; tar -xf -)
rm -f /tmp/files$$ /tmp/objfiles$$
arch=$(dpkg --print-architecture)
cat <<EOF >> debian/control
Package: $hdrpackagename
Provides: linux-headers, linux-headers-2.6
Architecture: $arch
Description: Linux kernel headers for $KERNELRELEASE on $arch
This package provides kernel header files for $KERNELRELEASE on $arch
.
This is useful for people who need to build external modules
EOF
create_package "$hdrpackagename" "$hdrdir"
# Do we have firmware? Move it out of the way and build it into a package.
if [ -e "$tmpdir/lib/firmware" ]; then
mv "$tmpdir/lib/firmware" "$fwdir/lib/"
cat <<EOF >> debian/control
Package: $fwpackagename
Architecture: all
Description: Linux kernel firmware, version $version
This package contains firmware from the Linux kernel, version $version.
EOF
create_package "$fwpackagename" "$fwdir"
fi
create_package "$packagename" "$tmpdir"
exit 0
