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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
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 "$3"
18 fi
19}
20
21set_debarch() {
22 if [ -n "$KBUILD_DEBARCH" ] ; 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 esac
74 if [ -z "$debarch" ]; then
75 debarch=$(dpkg-architecture -qDEB_HOST_ARCH)
76 echo "" >&2
77 echo "** ** ** WARNING ** ** **" >&2
78 echo "" >&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
83 echo "" >&2
84 fi
85}
86
87# Create debian/source/ if it is a source package build
88gen_source ()
89{
90 mkdir -p debian/source
91
92 echo "3.0 (quilt)" > debian/source/format
93
94 {
95 echo "diff-ignore"
96 echo "extend-diff-ignore = .*"
97 } > debian/source/local-options
98
99 # Add .config as a patch
100 mkdir -p debian/patches
101 {
102 echo "Subject: Add .config"
103 echo "Author: ${maintainer}"
104 echo
105 echo "--- /dev/null"
106 echo "+++ linux/.config"
107 diff -u /dev/null "${KCONFIG_CONFIG}" | tail -n +3
108 } > debian/patches/config.patch
109 echo config.patch > debian/patches/series
110
111 "${srctree}/scripts/package/gen-diff-patch" debian/patches/diff.patch
112 if [ -s debian/patches/diff.patch ]; then
113 sed -i "
114 1iSubject: Add local diff
115 1iAuthor: ${maintainer}
116 1i
117 " debian/patches/diff.patch
118
119 echo diff.patch >> debian/patches/series
120 else
121 rm -f debian/patches/diff.patch
122 fi
123}
124
125rm -rf debian
126mkdir debian
127
128email=${DEBEMAIL-$EMAIL}
129
130# use email string directly if it contains <email>
131if echo "${email}" | grep -q '<.*>'; then
132 maintainer=${email}
133else
134 # or construct the maintainer string
135 user=${KBUILD_BUILD_USER-$(id -nu)}
136 name=${DEBFULLNAME-${user}}
137 if [ -z "${email}" ]; then
138 buildhost=${KBUILD_BUILD_HOST-$(hostname -f 2>/dev/null || hostname)}
139 email="${user}@${buildhost}"
140 fi
141 maintainer="${name} <${email}>"
142fi
143
144if [ "$1" = --need-source ]; then
145 gen_source
146fi
147
148# Some variables and settings used throughout the script
149version=$KERNELRELEASE
150if [ -n "$KDEB_PKGVERSION" ]; then
151 packageversion=$KDEB_PKGVERSION
152else
153 packageversion=$(${srctree}/scripts/setlocalversion --no-local ${srctree})-$($srctree/init/build-version)
154fi
155sourcename=${KDEB_SOURCENAME:-linux-upstream}
156
157if [ "$ARCH" = "um" ] ; then
158 packagename=user-mode-linux
159else
160 packagename=linux-image
161fi
162
163debarch=
164set_debarch
165
166# Try to determine distribution
167if [ -n "$KDEB_CHANGELOG_DIST" ]; then
168 distribution=$KDEB_CHANGELOG_DIST
169# In some cases lsb_release returns the codename as n/a, which breaks dpkg-parsechangelog
170elif distribution=$(lsb_release -cs 2>/dev/null) && [ -n "$distribution" ] && [ "$distribution" != "n/a" ]; then
171 : # nothing to do in this case
172else
173 distribution="unstable"
174 echo >&2 "Using default distribution of 'unstable' in the changelog"
175 echo >&2 "Install lsb-release or set \$KDEB_CHANGELOG_DIST explicitly"
176fi
177
178echo $debarch > debian/arch
179
180# Generate a simple changelog template
181cat <<EOF > debian/changelog
182$sourcename ($packageversion) $distribution; urgency=low
183
184 * Custom built Linux kernel.
185
186 -- $maintainer $(date -R)
187EOF
188
189# Generate a control file
190cat <<EOF > debian/control
191Source: $sourcename
192Section: kernel
193Priority: optional
194Maintainer: $maintainer
195Rules-Requires-Root: no
196Build-Depends: debhelper-compat (= 12)
197Build-Depends-Arch: bc, bison, cpio, flex, kmod, libelf-dev:native, libssl-dev:native, rsync
198Homepage: https://www.kernel.org/
199
200Package: $packagename-$version
201Architecture: $debarch
202Description: Linux kernel, version $version
203 This package contains the Linux kernel, modules and corresponding other
204 files, version: $version.
205EOF
206
207if [ "${SRCARCH}" != um ]; then
208cat <<EOF >> debian/control
209
210Package: linux-libc-dev
211Section: devel
212Provides: linux-kernel-headers
213Architecture: $debarch
214Description: Linux support headers for userspace development
215 This package provides userspaces headers from the Linux kernel. These headers
216 are used by the installed headers for GNU glibc and other system libraries.
217Multi-Arch: same
218EOF
219
220if is_enabled CONFIG_MODULES; then
221cat <<EOF >> debian/control
222
223Package: linux-headers-$version
224Architecture: $debarch
225Description: Linux kernel headers for $version on $debarch
226 This package provides kernel header files for $version on $debarch
227 .
228 This is useful for people who need to build external modules
229EOF
230fi
231fi
232
233if is_enabled CONFIG_DEBUG_INFO; then
234cat <<EOF >> debian/control
235
236Package: linux-image-$version-dbg
237Section: debug
238Architecture: $debarch
239Description: 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.
242EOF
243fi
244
245cat <<EOF > debian/rules.vars
246ARCH := ${ARCH}
247KERNELRELEASE := ${KERNELRELEASE}
248EOF
249
250cp "${srctree}/scripts/package/debian/copyright" debian/
251cp "${srctree}/scripts/package/debian/rules" debian/
252
253exit 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