linux-yocto/scripts/package/builddeb

#!/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" kernel_headers_dir="$objtree/debian/hdrtmp" libc_headers_dir="$objtree/debian/headertmp" packagename=linux-image-$version fwpackagename=linux-firmware-image kernel_headers_packagename=linux-headers-$version libc_headers_packagename=linux-libc-dev

if [ "$ARCH" = "um" ] ; then packagename=user-mode-linux-$version fi

Setup the directory structure

rm -rf "$tmpdir" "$fwdir" "$kernel_headers_dir" "$libc_headers_dir" 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/$fwpackagename" mkdir -m 755 -p "$libc_headers_dir/DEBIAN" mkdir -p "$libc_headers_dir/usr/share/doc/$libc_headers_packagename" mkdir -m 755 -p "$kernel_headers_dir/DEBIAN" mkdir -p "$kernel_headers_dir/usr/share/doc/$kernel_headers_packagename" if [ "$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

make headers_check make headers_install INSTALL_HDR_PATH="$libc_headers_dir/usr"

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 < "$tmpdir/DEBIAN/$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 < debian/changelog linux-upstream ($packageversion) unstable; urgency=low

• Custom built Linux kernel.

-- $maintainer $(date -R) EOF

Generate copyright file

cat < 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 < 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 <> 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 <> 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

(cd $srctree; find . -name Makefile -o -name Kconfig* -o -name *.pl > "$objtree/debian/hdrsrcfiles") (cd $srctree; find arch/$SRCARCH/include include scripts -type f >> "$objtree/debian/hdrsrcfiles") (cd $objtree; find .config Module.symvers include scripts -type f >> "$objtree/debian/hdrobjfiles") destdir=$kernel_headers_dir/usr/src/linux-headers-$version mkdir -p "$destdir" (cd $srctree; tar -c -f - -T "$objtree/debian/hdrsrcfiles") | (cd $destdir; tar -xf -) (cd $objtree; tar -c -f - -T "$objtree/debian/hdrobjfiles") | (cd $destdir; tar -xf -) rm -f "$objtree/debian/hdrsrcfiles" "$objtree/debian/hdrobjfiles" arch=$(dpkg --print-architecture)

cat <> debian/control

Package: $kernel_headers_packagename 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 "$kernel_headers_packagename" "$kernel_headers_dir"

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

cat <> debian/control

Package: $libc_headers_packagename Section: devel Provides: linux-kernel-headers Architecture: any Description: Linux support headers for userspace development This package provides userspaces headers from the Linux kernel. These headers are used by the installed headers for GNU glibc and other system libraries. EOF

create_package "$libc_headers_packagename" "$libc_headers_dir" create_package "$packagename" "$tmpdir"

exit 0