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
94 packageversion=$(${srctree}/scripts/setlocalversion --no-local ${srctree})-$($srctree/init/build-version)
96 sourcename=${KDEB_SOURCENAME:-linux-upstream}
98 if [ "$ARCH" = "um" ] ; then
99 packagename=user-mode-linux
101 packagename=linux-image
107 email=${DEBEMAIL-$EMAIL}
109 # use email string directly if it contains <email>
110 if echo $email | grep -q '<.*>'; then
113 # or construct the maintainer string
114 user=${KBUILD_BUILD_USER-$(id -nu)}
115 name=${DEBFULLNAME-$user}
116 if [ -z "$email" ]; then
117 buildhost=${KBUILD_BUILD_HOST-$(hostname -f 2>/dev/null || hostname)}
118 email="$user@$buildhost"
120 maintainer="$name <$email>"
123 # Try to determine distribution
124 if [ -n "$KDEB_CHANGELOG_DIST" ]; then
125 distribution=$KDEB_CHANGELOG_DIST
126 # In some cases lsb_release returns the codename as n/a, which breaks dpkg-parsechangelog
127 elif distribution=$(lsb_release -cs 2>/dev/null) && [ -n "$distribution" ] && [ "$distribution" != "n/a" ]; then
128 : # nothing to do in this case
130 distribution="unstable"
131 echo >&2 "Using default distribution of 'unstable' in the changelog"
132 echo >&2 "Install lsb-release or set \$KDEB_CHANGELOG_DIST explicitly"
135 mkdir -p debian/source/
136 echo "3.0 (quilt)" > debian/source/format
140 echo "extend-diff-ignore = .*"
141 } > debian/source/local-options
143 # Add .config as a patch
144 mkdir -p debian/patches
146 echo "Subject: Add .config"
147 echo "Author: ${maintainer}"
150 echo "+++ linux/.config"
151 diff -u /dev/null "${KCONFIG_CONFIG}" | tail -n +3
152 } > debian/patches/config
153 echo config > debian/patches/series
155 $(dirname $0)/gen-diff-patch debian/patches/diff.patch debian/patches/untracked.patch
156 if [ -f debian/patches/diff.patch ]; then
157 echo diff.patch >> debian/patches/series
159 if [ -f debian/patches/untracked.patch ]; then
160 echo untracked.patch >> debian/patches/series
163 echo $debarch > debian/arch
164 extra_build_depends=", $(if_enabled_echo CONFIG_UNWINDER_ORC libelf-dev:native)"
165 extra_build_depends="$extra_build_depends, $(if_enabled_echo CONFIG_SYSTEM_TRUSTED_KEYRING libssl-dev:native)"
167 # Generate a simple changelog template
168 cat <<EOF > debian/changelog
169 $sourcename ($packageversion) $distribution; urgency=low
171 * Custom built Linux kernel.
173 -- $maintainer $(date -R)
176 # Generate copyright file
177 cat <<EOF > debian/copyright
178 This is a packacked upstream version of the Linux kernel.
180 The sources may be found at most Linux archive sites, including:
181 https://www.kernel.org/pub/linux/kernel
183 Copyright: 1991 - 2018 Linus Torvalds and others.
185 The git repository for mainline kernel development is at:
186 git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
188 This program is free software; you can redistribute it and/or modify
189 it under the terms of the GNU General Public License as published by
190 the Free Software Foundation; version 2 dated June, 1991.
192 On Debian GNU/Linux systems, the complete text of the GNU General Public
193 License version 2 can be found in \`/usr/share/common-licenses/GPL-2'.
196 # Generate a control file
197 cat <<EOF > debian/control
201 Maintainer: $maintainer
202 Rules-Requires-Root: no
203 Build-Depends: bc, debhelper, rsync, kmod, cpio, bison, flex $extra_build_depends
204 Homepage: https://www.kernel.org/
206 Package: $packagename-$version
207 Architecture: $debarch
208 Description: Linux kernel, version $version
209 This package contains the Linux kernel, modules and corresponding other
210 files, version: $version.
213 if [ "${SRCARCH}" != um ]; then
214 cat <<EOF >> debian/control
216 Package: linux-libc-dev
218 Provides: linux-kernel-headers
219 Architecture: $debarch
220 Description: Linux support headers for userspace development
221 This package provides userspaces headers from the Linux kernel. These headers
222 are used by the installed headers for GNU glibc and other system libraries.
226 if is_enabled CONFIG_MODULES; then
227 cat <<EOF >> debian/control
229 Package: linux-headers-$version
230 Architecture: $debarch
231 Description: Linux kernel headers for $version on $debarch
232 This package provides kernel header files for $version on $debarch
234 This is useful for people who need to build external modules
239 if is_enabled CONFIG_DEBUG_INFO; then
240 cat <<EOF >> debian/control
242 Package: linux-image-$version-dbg
244 Architecture: $debarch
245 Description: Linux kernel debugging symbols for $version
246 This package will come in handy if you need to debug the kernel. It provides
247 all the necessary debug symbols for the kernel and its modules.
251 cat <<EOF > debian/rules
252 #!$(command -v $MAKE) -f
255 KERNELRELEASE = ${KERNELRELEASE}
259 \$(MAKE) -f \$(srctree)/Makefile ARCH=${ARCH} \
260 KERNELRELEASE=\$(KERNELRELEASE) \
261 \$(shell \$(srctree)/scripts/package/deb-build-option) \
267 binary-arch: build-arch
268 \$(MAKE) -f \$(srctree)/Makefile ARCH=${ARCH} \
269 KERNELRELEASE=\$(KERNELRELEASE) intdeb-pkg
272 rm -rf debian/files debian/linux-*
273 \$(MAKE) -f \$(srctree)/Makefile ARCH=${ARCH} clean
277 chmod +x debian/rules