3 # Copyright 2003 Wichert Akkerman <wichert@wiggy.net>
5 # Simple script to generate a debian/ directory for a Linux kernel.
10 grep -q "^$1=y" include/config/auto.conf
14 if is_enabled "$1"; then
16 elif [ $# -ge 3 ]; then
22 if [ -n "$KBUILD_DEBARCH" ] ; then
23 debarch="$KBUILD_DEBARCH"
27 # Attempt to find the correct Debian architecture
28 case "$UTS_MACHINE" in
29 i386|ia64|alpha|m68k|riscv*)
30 debarch="$UTS_MACHINE" ;;
34 debarch=sparc$(if_enabled_echo CONFIG_64BIT 64) ;;
38 if is_enabled CONFIG_64BIT; then
39 debarch=ppc64$(if_enabled_echo CONFIG_CPU_LITTLE_ENDIAN el)
41 debarch=powerpc$(if_enabled_echo CONFIG_SPE spe)
47 if is_enabled CONFIG_CPU_LITTLE_ENDIAN; then
48 debarch=mips$(if_enabled_echo CONFIG_64BIT 64)$(if_enabled_echo CONFIG_CPU_MIPSR6 r6)el
49 elif is_enabled CONFIG_CPU_MIPSR6; then
50 debarch=mips$(if_enabled_echo CONFIG_64BIT 64)r6
58 if is_enabled CONFIG_AEABI; then
59 debarch=arm$(if_enabled_echo CONFIG_VFP hf el)
67 if is_enabled CONFIG_CPU_SH3; then
68 debarch=sh3$(if_enabled_echo CONFIG_CPU_BIG_ENDIAN eb)
69 elif is_enabled CONFIG_CPU_SH4; then
70 debarch=sh4$(if_enabled_echo CONFIG_CPU_BIG_ENDIAN eb)
74 if [ -z "$debarch" ]; then
75 debarch=$(dpkg-architecture -qDEB_HOST_ARCH)
77 echo "** ** ** WARNING ** ** **" >&2
79 echo "Your architecture doesn't have its equivalent" >&2
80 echo "Debian userspace architecture defined!" >&2
81 echo "Falling back to the current host architecture ($debarch)." >&2
82 echo "Please add support for $UTS_MACHINE to ${0} ..." >&2
89 # Some variables and settings used throughout the script
90 version=$KERNELRELEASE
91 if [ -n "$KDEB_PKGVERSION" ]; then
92 packageversion=$KDEB_PKGVERSION
93 revision=${packageversion##*-}
95 revision=$($srctree/init/build-version)
96 packageversion=$version-$revision
98 sourcename=$KDEB_SOURCENAME
100 if [ "$ARCH" = "um" ] ; then
101 packagename=user-mode-linux
103 packagename=linux-image
109 email=${DEBEMAIL-$EMAIL}
111 # use email string directly if it contains <email>
112 if echo $email | grep -q '<.*>'; then
115 # or construct the maintainer string
116 user=${KBUILD_BUILD_USER-$(id -nu)}
117 name=${DEBFULLNAME-$user}
118 if [ -z "$email" ]; then
119 buildhost=${KBUILD_BUILD_HOST-$(hostname -f 2>/dev/null || hostname)}
120 email="$user@$buildhost"
122 maintainer="$name <$email>"
125 # Try to determine distribution
126 if [ -n "$KDEB_CHANGELOG_DIST" ]; then
127 distribution=$KDEB_CHANGELOG_DIST
128 # In some cases lsb_release returns the codename as n/a, which breaks dpkg-parsechangelog
129 elif distribution=$(lsb_release -cs 2>/dev/null) && [ -n "$distribution" ] && [ "$distribution" != "n/a" ]; then
130 : # nothing to do in this case
132 distribution="unstable"
133 echo >&2 "Using default distribution of 'unstable' in the changelog"
134 echo >&2 "Install lsb-release or set \$KDEB_CHANGELOG_DIST explicitly"
137 mkdir -p debian/source/
138 echo "1.0" > debian/source/format
140 # Ugly: ignore anything except .config or debian/
141 cat<<'EOF' > debian/source/local-options
144 extend-diff-ignore = ^[^.d]
146 extend-diff-ignore = ^\.[^c]
147 extend-diff-ignore = ^\.c($|[^o])
148 extend-diff-ignore = ^\.co($|[^n])
149 extend-diff-ignore = ^\.con($|[^f])
150 extend-diff-ignore = ^\.conf($|[^i])
151 extend-diff-ignore = ^\.confi($|[^g])
152 extend-diff-ignore = ^\.config.
154 extend-diff-ignore = ^d($|[^e])
155 extend-diff-ignore = ^de($|[^b])
156 extend-diff-ignore = ^deb($|[^i])
157 extend-diff-ignore = ^debi($|[^a])
158 extend-diff-ignore = ^debia($|[^n])
159 extend-diff-ignore = ^debian[^/]
162 echo $debarch > debian/arch
163 extra_build_depends=", $(if_enabled_echo CONFIG_UNWINDER_ORC libelf-dev:native)"
164 extra_build_depends="$extra_build_depends, $(if_enabled_echo CONFIG_SYSTEM_TRUSTED_KEYRING libssl-dev:native)"
166 # Generate a simple changelog template
167 cat <<EOF > debian/changelog
168 $sourcename ($packageversion) $distribution; urgency=low
170 * Custom built Linux kernel.
172 -- $maintainer $(date -R)
175 # Generate copyright file
176 cat <<EOF > debian/copyright
177 This is a packacked upstream version of the Linux kernel.
179 The sources may be found at most Linux archive sites, including:
180 https://www.kernel.org/pub/linux/kernel
182 Copyright: 1991 - 2018 Linus Torvalds and others.
184 The git repository for mainline kernel development is at:
185 git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
187 This program is free software; you can redistribute it and/or modify
188 it under the terms of the GNU General Public License as published by
189 the Free Software Foundation; version 2 dated June, 1991.
191 On Debian GNU/Linux systems, the complete text of the GNU General Public
192 License version 2 can be found in \`/usr/share/common-licenses/GPL-2'.
195 # Generate a control file
196 cat <<EOF > debian/control
200 Maintainer: $maintainer
201 Rules-Requires-Root: no
202 Build-Depends: bc, rsync, kmod, cpio, bison, flex $extra_build_depends
203 Homepage: https://www.kernel.org/
205 Package: $packagename-$version
206 Architecture: $debarch
207 Description: Linux kernel, version $version
208 This package contains the Linux kernel, modules and corresponding other
209 files, version: $version.
211 Package: linux-libc-dev
213 Provides: linux-kernel-headers
214 Architecture: $debarch
215 Description: Linux support headers for userspace development
216 This package provides userspaces headers from the Linux kernel. These headers
217 are used by the installed headers for GNU glibc and other system libraries.
221 if is_enabled CONFIG_MODULES; then
222 cat <<EOF >> debian/control
224 Package: linux-headers-$version
225 Architecture: $debarch
226 Description: Linux kernel headers for $version on $debarch
227 This package provides kernel header files for $version on $debarch
229 This is useful for people who need to build external modules
233 if is_enabled CONFIG_DEBUG_INFO; then
234 cat <<EOF >> debian/control
236 Package: linux-image-$version-dbg
238 Architecture: $debarch
239 Description: Linux kernel debugging symbols for $version
240 This package will come in handy if you need to debug the kernel. It provides
241 all the necessary debug symbols for the kernel and its modules.
245 cat <<EOF > debian/rules
246 #!$(command -v $MAKE) -f
252 \$(MAKE) KERNELRELEASE=${version} ARCH=${ARCH} \
253 KBUILD_BUILD_VERSION=${revision} -f \$(srctree)/Makefile
258 binary-arch: build-arch
259 \$(MAKE) KERNELRELEASE=${version} ARCH=${ARCH} \
260 KBUILD_BUILD_VERSION=${revision} -f \$(srctree)/Makefile intdeb-pkg
263 rm -rf debian/files debian/linux-*
268 chmod +x debian/rules