5 # Simple script to generate a debian/ directory for a Linux kernel.
10 # Attempt to find the correct Debian architecture
11 case "$UTS_MACHINE" in
13 debarch="$UTS_MACHINE" ;;
19 debarch=s390$(grep -q CONFIG_64BIT=y $KCONFIG_CONFIG && echo x || true) ;;
21 debarch=$(grep -q CPU_LITTLE_ENDIAN=y $KCONFIG_CONFIG && echo ppc64el || echo powerpc) ;;
25 debarch=mips$(grep -q CPU_LITTLE_ENDIAN=y $KCONFIG_CONFIG && echo el || true) ;;
29 if grep -q CONFIG_AEABI=y $KCONFIG_CONFIG; then
30 if grep -q CONFIG_VFP=y $KCONFIG_CONFIG; then
40 debarch=$(dpkg --print-architecture)
42 echo "** ** ** WARNING ** ** **" >&2
44 echo "Your architecture doesn't have its equivalent" >&2
45 echo "Debian userspace architecture defined!" >&2
46 echo "Falling back to using your current userspace instead!" >&2
47 echo "Please add support for $UTS_MACHINE to ${0} ..." >&2
50 if [ -n "$KBUILD_DEBARCH" ] ; then
51 debarch="$KBUILD_DEBARCH"
55 # Some variables and settings used throughout the script
56 version=$KERNELRELEASE
57 if [ -n "$KDEB_PKGVERSION" ]; then
58 packageversion=$KDEB_PKGVERSION
60 revision=$(cat .version 2>/dev/null||echo 1)
61 packageversion=$version-$revision
63 sourcename=$KDEB_SOURCENAME
64 packagename=linux-image-$version
65 kernel_headers_packagename=linux-headers-$version
66 dbg_packagename=$packagename-dbg
70 if [ "$ARCH" = "um" ] ; then
71 packagename=user-mode-linux-$version
74 # Try to determine maintainer and email values
75 if [ -n "$DEBEMAIL" ]; then
77 elif [ -n "$EMAIL" ]; then
80 email=$(id -nu)@$(hostname -f 2>/dev/null || hostname)
82 if [ -n "$DEBFULLNAME" ]; then
84 elif [ -n "$NAME" ]; then
89 maintainer="$name <$email>"
91 # Try to determine distribution
92 if [ -n "$KDEB_CHANGELOG_DIST" ]; then
93 distribution=$KDEB_CHANGELOG_DIST
94 # In some cases lsb_release returns the codename as n/a, which breaks dpkg-parsechangelog
95 elif distribution=$(lsb_release -cs 2>/dev/null) && [ -n "$distribution" ] && [ "$distribution" != "n/a" ]; then
96 : # nothing to do in this case
98 distribution="unstable"
99 echo >&2 "Using default distribution of 'unstable' in the changelog"
100 echo >&2 "Install lsb-release or set \$KDEB_CHANGELOG_DIST explicitly"
104 echo $debarch > debian/arch
106 # Generate a simple changelog template
107 cat <<EOF > debian/changelog
108 $sourcename ($packageversion) $distribution; urgency=low
110 * Custom built Linux kernel.
112 -- $maintainer $(date -R)
115 # Generate copyright file
116 cat <<EOF > debian/copyright
117 This is a packacked upstream version of the Linux kernel.
119 The sources may be found at most Linux archive sites, including:
120 https://www.kernel.org/pub/linux/kernel
122 Copyright: 1991 - 2018 Linus Torvalds and others.
124 The git repository for mainline kernel development is at:
125 git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
127 This program is free software; you can redistribute it and/or modify
128 it under the terms of the GNU General Public License as published by
129 the Free Software Foundation; version 2 dated June, 1991.
131 On Debian GNU/Linux systems, the complete text of the GNU General Public
132 License version 2 can be found in \`/usr/share/common-licenses/GPL-2'.
135 # Generate a control file
136 cat <<EOF > debian/control
140 Maintainer: $maintainer
141 Build-Depends: bc, kmod, cpio
142 Homepage: http://www.kernel.org/
144 Package: $packagename
145 Architecture: $debarch
146 Description: Linux kernel, version $version
147 This package contains the Linux kernel, modules and corresponding other
148 files, version: $version.
150 Package: $kernel_headers_packagename
151 Architecture: $debarch
152 Description: Linux kernel headers for $version on $debarch
153 This package provides kernel header files for $version on $debarch
155 This is useful for people who need to build external modules
157 Package: linux-libc-dev
159 Provides: linux-kernel-headers
160 Architecture: $debarch
161 Description: Linux support headers for userspace development
162 This package provides userspaces headers from the Linux kernel. These headers
163 are used by the installed headers for GNU glibc and other system libraries.
165 Package: $dbg_packagename
167 Architecture: $debarch
168 Description: Linux kernel debugging symbols for $version
169 This package will come in handy if you need to debug the kernel. It provides
170 all the necessary debug symbols for the kernel and its modules.
173 cat <<EOF > debian/rules
174 #!$(command -v $MAKE) -f
177 \$(MAKE) KERNELRELEASE=${version} ARCH=${ARCH} KBUILD_SRC=
180 \$(MAKE) KERNELRELEASE=${version} ARCH=${ARCH} KBUILD_SRC= intdeb-pkg
183 rm -rf debian/*tmp debian/files