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1#!/bin/sh
2#
3# Copyright 2003 Wichert Akkerman <wichert@wiggy.net>
4#
5# Simple script to generate a debian/ directory for a Linux kernel.
6
7set -e
8
9set_debarch() {
10 # Attempt to find the correct Debian architecture
11 case "$UTS_MACHINE" in
12 i386|ia64|alpha)
13 debarch="$UTS_MACHINE" ;;
14 x86_64)
15 debarch=amd64 ;;
16 sparc*)
17 debarch=sparc ;;
18 s390*)
19 debarch=s390$(grep -q CONFIG_64BIT=y $KCONFIG_CONFIG && echo x || true) ;;
20 ppc*)
21 debarch=$(grep -q CPU_LITTLE_ENDIAN=y $KCONFIG_CONFIG && echo ppc64el || echo powerpc) ;;
22 parisc*)
23 debarch=hppa ;;
24 mips*)
25 debarch=mips$(grep -q CPU_LITTLE_ENDIAN=y $KCONFIG_CONFIG && echo el || true) ;;
26 aarch64|arm64)
27 debarch=arm64 ;;
28 arm*)
29 if grep -q CONFIG_AEABI=y $KCONFIG_CONFIG; then
30 if grep -q CONFIG_VFP=y $KCONFIG_CONFIG; then
31 debarch=armhf
32 else
33 debarch=armel
34 fi
35 else
36 debarch=arm
37 fi
38 ;;
39 *)
40 debarch=$(dpkg --print-architecture)
41 echo "" >&2
42 echo "** ** ** WARNING ** ** **" >&2
43 echo "" >&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 ${0} ..." >&2
48 echo "" >&2
49 esac
50 if [ -n "$KBUILD_DEBARCH" ] ; then
51 debarch="$KBUILD_DEBARCH"
52 fi
53}
54
55# Some variables and settings used throughout the script
56version=$KERNELRELEASE
57if [ -n "$KDEB_PKGVERSION" ]; then
58 packageversion=$KDEB_PKGVERSION
59else
60 revision=$(cat .version 2>/dev/null||echo 1)
61 packageversion=$version-$revision
62fi
63sourcename=$KDEB_SOURCENAME
64packagename=linux-image-$version
65kernel_headers_packagename=linux-headers-$version
66dbg_packagename=$packagename-dbg
67debarch=
68set_debarch
69
70if [ "$ARCH" = "um" ] ; then
71 packagename=user-mode-linux-$version
72fi
73
74# Try to determine maintainer and email values
75if [ -n "$DEBEMAIL" ]; then
76 email=$DEBEMAIL
77elif [ -n "$EMAIL" ]; then
78 email=$EMAIL
79else
80 email=$(id -nu)@$(hostname -f 2>/dev/null || hostname)
81fi
82if [ -n "$DEBFULLNAME" ]; then
83 name=$DEBFULLNAME
84elif [ -n "$NAME" ]; then
85 name=$NAME
86else
87 name="Anonymous"
88fi
89maintainer="$name <$email>"
90
91# Try to determine distribution
92if [ -n "$KDEB_CHANGELOG_DIST" ]; then
93 distribution=$KDEB_CHANGELOG_DIST
94# In some cases lsb_release returns the codename as n/a, which breaks dpkg-parsechangelog
95elif distribution=$(lsb_release -cs 2>/dev/null) && [ -n "$distribution" ] && [ "$distribution" != "n/a" ]; then
96 : # nothing to do in this case
97else
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"
101fi
102
103mkdir -p debian/
104echo $debarch > debian/arch
105
106# Generate a simple changelog template
107cat <<EOF > debian/changelog
108$sourcename ($packageversion) $distribution; urgency=low
109
110 * Custom built Linux kernel.
111
112 -- $maintainer $(date -R)
113EOF
114
115# Generate copyright file
116cat <<EOF > debian/copyright
117This is a packacked upstream version of the Linux kernel.
118
119The sources may be found at most Linux archive sites, including:
120https://www.kernel.org/pub/linux/kernel
121
122Copyright: 1991 - 2018 Linus Torvalds and others.
123
124The git repository for mainline kernel development is at:
125git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
126
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.
130
131On Debian GNU/Linux systems, the complete text of the GNU General Public
132License version 2 can be found in \`/usr/share/common-licenses/GPL-2'.
133EOF
134
135# Generate a control file
136cat <<EOF > debian/control
137Source: $sourcename
138Section: kernel
139Priority: optional
140Maintainer: $maintainer
141Build-Depends: bc, kmod, cpio
142Homepage: http://www.kernel.org/
143
144Package: $packagename
145Architecture: $debarch
146Description: Linux kernel, version $version
147 This package contains the Linux kernel, modules and corresponding other
148 files, version: $version.
149
150Package: $kernel_headers_packagename
151Architecture: $debarch
152Description: Linux kernel headers for $version on $debarch
153 This package provides kernel header files for $version on $debarch
154 .
155 This is useful for people who need to build external modules
156
157Package: linux-libc-dev
158Section: devel
159Provides: linux-kernel-headers
160Architecture: $debarch
161Description: 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.
164
165Package: $dbg_packagename
166Section: debug
167Architecture: $debarch
168Description: Linux kernel debugging symbols for $version
169 This package will come in handy if you need to debug the kernel. It provides
170 all the necessary debug symbols for the kernel and its modules.
171EOF
172
173cat <<EOF > debian/rules
174#!$(command -v $MAKE) -f
175
176build:
177 \$(MAKE) KERNELRELEASE=${version} ARCH=${ARCH} KBUILD_SRC=
178
179binary-arch:
180 \$(MAKE) KERNELRELEASE=${version} ARCH=${ARCH} KBUILD_SRC= intdeb-pkg
181
182clean:
183 rm -rf debian/*tmp debian/files
184 \$(MAKE) clean
185
186binary: binary-arch
187EOF
188
189exit 0
1#!/bin/sh
2#
3# Copyright 2003 Wichert Akkerman <wichert@wiggy.net>
4#
5# Simple script to generate a debian/ directory for a Linux kernel.
6
7set -eu
8
9is_enabled() {
10 grep -q "^$1=y" include/config/auto.conf
11}
12
13if_enabled_echo() {
14 if is_enabled "$1"; then
15 echo -n "$2"
16 elif [ $# -ge 3 ]; then
17 echo -n "$3"
18 fi
19}
20
21set_debarch() {
22 if [ "${KBUILD_DEBARCH:+set}" ]; then
23 debarch="$KBUILD_DEBARCH"
24 return
25 fi
26
27 # Attempt to find the correct Debian architecture
28 case "$UTS_MACHINE" in
29 i386|alpha|m68k|riscv*)
30 debarch="$UTS_MACHINE" ;;
31 x86_64)
32 debarch=amd64 ;;
33 sparc*)
34 debarch=sparc$(if_enabled_echo CONFIG_64BIT 64) ;;
35 s390*)
36 debarch=s390x ;;
37 ppc*)
38 if is_enabled CONFIG_64BIT; then
39 debarch=ppc64$(if_enabled_echo CONFIG_CPU_LITTLE_ENDIAN el)
40 else
41 debarch=powerpc$(if_enabled_echo CONFIG_SPE spe)
42 fi
43 ;;
44 parisc*)
45 debarch=hppa ;;
46 mips*)
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$(if_enabled_echo CONFIG_64BIT 64)r6
51 else
52 debarch=mips
53 fi
54 ;;
55 aarch64|arm64)
56 debarch=arm64 ;;
57 arm*)
58 if is_enabled CONFIG_AEABI; then
59 debarch=arm$(if_enabled_echo CONFIG_VFP hf el)
60 else
61 debarch=arm
62 fi
63 ;;
64 openrisc)
65 debarch=or1k ;;
66 sh)
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)
71 fi
72 ;;
73 um)
74 if is_enabled CONFIG_64BIT; then
75 debarch=amd64
76 else
77 debarch=i386
78 fi
79 ;;
80 esac
81 if [ -z "$debarch" ]; then
82 debarch=$(dpkg-architecture -qDEB_HOST_ARCH)
83 echo "" >&2
84 echo "** ** ** WARNING ** ** **" >&2
85 echo "" >&2
86 echo "Your architecture doesn't have its equivalent" >&2
87 echo "Debian userspace architecture defined!" >&2
88 echo "Falling back to the current host architecture ($debarch)." >&2
89 echo "Please add support for $UTS_MACHINE to ${0} ..." >&2
90 echo "" >&2
91 fi
92}
93
94# Create debian/source/ if it is a source package build
95gen_source ()
96{
97 mkdir -p debian/source
98
99 echo "3.0 (quilt)" > debian/source/format
100
101 {
102 echo "diff-ignore"
103 echo "extend-diff-ignore = .*"
104 } > debian/source/local-options
105
106 # Add .config as a patch
107 mkdir -p debian/patches
108 {
109 echo "Subject: Add .config"
110 echo "Author: ${maintainer}"
111 echo
112 echo "--- /dev/null"
113 echo "+++ linux/.config"
114 diff -u /dev/null "${KCONFIG_CONFIG}" | tail -n +3
115 } > debian/patches/config.patch
116 echo config.patch > debian/patches/series
117
118 "${srctree}/scripts/package/gen-diff-patch" debian/patches/diff.patch
119 if [ -s debian/patches/diff.patch ]; then
120 sed -i "
121 1iSubject: Add local diff
122 1iAuthor: ${maintainer}
123 1i
124 " debian/patches/diff.patch
125
126 echo diff.patch >> debian/patches/series
127 else
128 rm -f debian/patches/diff.patch
129 fi
130}
131
132rm -rf debian
133mkdir debian
134
135user=${KBUILD_BUILD_USER:-$(id -nu)}
136name=${DEBFULLNAME:-${user}}
137if [ "${DEBEMAIL:+set}" ]; then
138 email=${DEBEMAIL}
139else
140 buildhost=${KBUILD_BUILD_HOST:-$(hostname -f 2>/dev/null || hostname)}
141 email="${user}@${buildhost}"
142fi
143maintainer="${name} <${email}>"
144
145while [ $# -gt 0 ]; do
146 case "$1" in
147 --need-source)
148 gen_source
149 shift
150 ;;
151 *)
152 break
153 ;;
154 esac
155done
156
157# Some variables and settings used throughout the script
158version=$KERNELRELEASE
159if [ "${KDEB_PKGVERSION:+set}" ]; then
160 packageversion=$KDEB_PKGVERSION
161else
162 packageversion=$(${srctree}/scripts/setlocalversion --no-local ${srctree})-$($srctree/scripts/build-version)
163fi
164sourcename=${KDEB_SOURCENAME:-linux-upstream}
165
166if [ "$ARCH" = "um" ] ; then
167 packagename=user-mode-linux
168else
169 packagename=linux-image
170fi
171
172debarch=
173set_debarch
174
175# Try to determine distribution
176if [ "${KDEB_CHANGELOG_DIST:+set}" ]; then
177 distribution=$KDEB_CHANGELOG_DIST
178# In some cases lsb_release returns the codename as n/a, which breaks dpkg-parsechangelog
179elif distribution=$(lsb_release -cs 2>/dev/null) && [ -n "$distribution" ] && [ "$distribution" != "n/a" ]; then
180 : # nothing to do in this case
181else
182 distribution="unstable"
183 echo >&2 "Using default distribution of 'unstable' in the changelog"
184 echo >&2 "Install lsb-release or set \$KDEB_CHANGELOG_DIST explicitly"
185fi
186
187echo $debarch > debian/arch
188
189host_gnu=$(dpkg-architecture -a "${debarch}" -q DEB_HOST_GNU_TYPE | sed 's/_/-/g')
190
191# Generate a simple changelog template
192cat <<EOF > debian/changelog
193$sourcename ($packageversion) $distribution; urgency=low
194
195 * Custom built Linux kernel.
196
197 -- $maintainer $(date -R)
198EOF
199
200# Generate a control file
201cat <<EOF > debian/control
202Source: $sourcename
203Section: kernel
204Priority: optional
205Maintainer: $maintainer
206Rules-Requires-Root: no
207Build-Depends: debhelper-compat (= 12)
208Build-Depends-Arch: bc, bison, cpio, flex,
209 gcc-${host_gnu} <!pkg.${sourcename}.nokernelheaders>,
210 kmod, libelf-dev:native,
211 libssl-dev:native, libssl-dev <!pkg.${sourcename}.nokernelheaders>,
212 python3:native, rsync
213Homepage: https://www.kernel.org/
214
215Package: $packagename-$version
216Architecture: $debarch
217Description: Linux kernel, version $version
218 This package contains the Linux kernel, modules and corresponding other
219 files, version: $version.
220EOF
221
222if [ "${SRCARCH}" != um ]; then
223cat <<EOF >> debian/control
224
225Package: linux-libc-dev
226Section: devel
227Provides: linux-kernel-headers
228Architecture: $debarch
229Description: Linux support headers for userspace development
230 This package provides userspaces headers from the Linux kernel. These headers
231 are used by the installed headers for GNU glibc and other system libraries.
232Multi-Arch: same
233EOF
234
235if is_enabled CONFIG_MODULES; then
236cat <<EOF >> debian/control
237
238Package: linux-headers-$version
239Architecture: $debarch
240Build-Profiles: <!pkg.${sourcename}.nokernelheaders>
241Description: Linux kernel headers for $version on $debarch
242 This package provides kernel header files for $version on $debarch
243 .
244 This is useful for people who need to build external modules
245EOF
246fi
247fi
248
249if is_enabled CONFIG_DEBUG_INFO; then
250cat <<EOF >> debian/control
251
252Package: linux-image-$version-dbg
253Section: debug
254Architecture: $debarch
255Build-Profiles: <!pkg.${sourcename}.nokerneldbg>
256Description: Linux kernel debugging symbols for $version
257 This package will come in handy if you need to debug the kernel. It provides
258 all the necessary debug symbols for the kernel and its modules.
259EOF
260fi
261
262cat <<EOF > debian/rules.vars
263ARCH := ${ARCH}
264KERNELRELEASE := ${KERNELRELEASE}
265EOF
266
267cp "${srctree}/scripts/package/debian/copyright" debian/
268cp "${srctree}/scripts/package/debian/rules" debian/
269
270exit 0