Merge tag 'afs-next-20190507' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowel...
[sfrench/cifs-2.6.git] / scripts / package / mkdebian
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
7 set -e
8
9 is_enabled() {
10         grep -q "^$1=y" include/config/auto.conf
11 }
12
13 if_enabled_echo() {
14         if is_enabled "$1"; then
15                 echo -n "$2"
16         elif [ $# -ge 3 ]; then
17                 echo -n "$3"
18         fi
19 }
20
21 set_debarch() {
22         if [ -n "$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|ia64|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 ${0} ..." >&2
83                 echo "" >&2
84         fi
85 }
86
87 # Some variables and settings used throughout the script
88 version=$KERNELRELEASE
89 if [ -n "$KDEB_PKGVERSION" ]; then
90         packageversion=$KDEB_PKGVERSION
91         revision=${packageversion##*-}
92 else
93         revision=$(cat .version 2>/dev/null||echo 1)
94         packageversion=$version-$revision
95 fi
96 sourcename=$KDEB_SOURCENAME
97 packagename=linux-image-$version
98 kernel_headers_packagename=linux-headers-$version
99 dbg_packagename=$packagename-dbg
100 debarch=
101 set_debarch
102
103 if [ "$ARCH" = "um" ] ; then
104         packagename=user-mode-linux-$version
105 fi
106
107 email=${DEBEMAIL-$EMAIL}
108
109 # use email string directly if it contains <email>
110 if echo $email | grep -q '<.*>'; then
111         maintainer=$email
112 else
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@$buildhost"
119         fi
120         maintainer="$name <$email>"
121 fi
122
123 # Try to determine distribution
124 if [ -n "$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
129 else
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"
133 fi
134
135 mkdir -p debian/source/
136 echo "1.0" > debian/source/format
137
138 echo $debarch > debian/arch
139 extra_build_depends=", $(if_enabled_echo CONFIG_UNWINDER_ORC libelf-dev)"
140 extra_build_depends="$extra_build_depends, $(if_enabled_echo CONFIG_SYSTEM_TRUSTED_KEYRING libssl-dev:native)"
141
142 # Generate a simple changelog template
143 cat <<EOF > debian/changelog
144 $sourcename ($packageversion) $distribution; urgency=low
145
146   * Custom built Linux kernel.
147
148  -- $maintainer  $(date -R)
149 EOF
150
151 # Generate copyright file
152 cat <<EOF > debian/copyright
153 This is a packacked upstream version of the Linux kernel.
154
155 The sources may be found at most Linux archive sites, including:
156 https://www.kernel.org/pub/linux/kernel
157
158 Copyright: 1991 - 2018 Linus Torvalds and others.
159
160 The git repository for mainline kernel development is at:
161 git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
162
163     This program is free software; you can redistribute it and/or modify
164     it under the terms of the GNU General Public License as published by
165     the Free Software Foundation; version 2 dated June, 1991.
166
167 On Debian GNU/Linux systems, the complete text of the GNU General Public
168 License version 2 can be found in \`/usr/share/common-licenses/GPL-2'.
169 EOF
170
171 # Generate a control file
172 cat <<EOF > debian/control
173 Source: $sourcename
174 Section: kernel
175 Priority: optional
176 Maintainer: $maintainer
177 Build-Depends: bc, kmod, cpio, bison, flex | flex:native $extra_build_depends
178 Homepage: http://www.kernel.org/
179
180 Package: $packagename
181 Architecture: $debarch
182 Description: Linux kernel, version $version
183  This package contains the Linux kernel, modules and corresponding other
184  files, version: $version.
185
186 Package: $kernel_headers_packagename
187 Architecture: $debarch
188 Description: Linux kernel headers for $version on $debarch
189  This package provides kernel header files for $version on $debarch
190  .
191  This is useful for people who need to build external modules
192
193 Package: linux-libc-dev
194 Section: devel
195 Provides: linux-kernel-headers
196 Architecture: $debarch
197 Description: Linux support headers for userspace development
198  This package provides userspaces headers from the Linux kernel.  These headers
199  are used by the installed headers for GNU glibc and other system libraries.
200
201 Package: $dbg_packagename
202 Section: debug
203 Architecture: $debarch
204 Description: Linux kernel debugging symbols for $version
205  This package will come in handy if you need to debug the kernel. It provides
206  all the necessary debug symbols for the kernel and its modules.
207 EOF
208
209 cat <<EOF > debian/rules
210 #!$(command -v $MAKE) -f
211
212 srctree ?= .
213
214 build:
215         \$(MAKE) KERNELRELEASE=${version} ARCH=${ARCH} \
216         KBUILD_BUILD_VERSION=${revision} -f \$(srctree)/Makefile
217
218 binary-arch:
219         \$(MAKE) KERNELRELEASE=${version} ARCH=${ARCH} \
220         KBUILD_BUILD_VERSION=${revision} -f \$(srctree)/Makefile intdeb-pkg
221
222 clean:
223         rm -rf debian/*tmp debian/files
224         \$(MAKE) clean
225
226 binary: binary-arch
227 EOF
228 chmod +x debian/rules
229
230 exit 0