1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
|
#!/bin/sh
#
# Copyright 2003 Wichert Akkerman <wichert@wiggy.net>
#
# Simple script to generate a debian/ directory for a Linux kernel.
set -e
is_enabled() {
grep -q "^$1=y" include/config/auto.conf
}
if_enabled_echo() {
if is_enabled "$1"; then
echo -n "$2"
elif [ $# -ge 3 ]; then
echo -n "$3"
fi
}
set_debarch() {
if [ -n "$KBUILD_DEBARCH" ] ; then
debarch="$KBUILD_DEBARCH"
return
fi
# Attempt to find the correct Debian architecture
case "$UTS_MACHINE" in
i386|ia64|alpha|m68k|riscv*)
debarch="$UTS_MACHINE" ;;
x86_64)
debarch=amd64 ;;
sparc*)
debarch=sparc$(if_enabled_echo CONFIG_64BIT 64) ;;
s390*)
debarch=s390x ;;
ppc*)
if is_enabled CONFIG_64BIT; then
debarch=ppc64$(if_enabled_echo CONFIG_CPU_LITTLE_ENDIAN el)
else
debarch=powerpc$(if_enabled_echo CONFIG_SPE spe)
fi
;;
parisc*)
debarch=hppa ;;
mips*)
if is_enabled CONFIG_CPU_LITTLE_ENDIAN; then
debarch=mips$(if_enabled_echo CONFIG_64BIT 64)$(if_enabled_echo CONFIG_CPU_MIPSR6 r6)el
elif is_enabled CONFIG_CPU_MIPSR6; then
debarch=mips$(if_enabled_echo CONFIG_64BIT 64)r6
else
debarch=mips
fi
;;
aarch64|arm64)
debarch=arm64 ;;
arm*)
if is_enabled CONFIG_AEABI; then
debarch=arm$(if_enabled_echo CONFIG_VFP hf el)
else
debarch=arm
fi
;;
openrisc)
debarch=or1k ;;
sh)
if is_enabled CONFIG_CPU_SH3; then
debarch=sh3$(if_enabled_echo CONFIG_CPU_BIG_ENDIAN eb)
elif is_enabled CONFIG_CPU_SH4; then
debarch=sh4$(if_enabled_echo CONFIG_CPU_BIG_ENDIAN eb)
fi
;;
esac
if [ -z "$debarch" ]; then
debarch=$(dpkg-architecture -qDEB_HOST_ARCH)
echo "" >&2
echo "** ** ** WARNING ** ** **" >&2
echo "" >&2
echo "Your architecture doesn't have its equivalent" >&2
echo "Debian userspace architecture defined!" >&2
echo "Falling back to the current host architecture ($debarch)." >&2
echo "Please add support for $UTS_MACHINE to ${0} ..." >&2
echo "" >&2
fi
}
# Some variables and settings used throughout the script
version=$KERNELRELEASE
if [ -n "$KDEB_PKGVERSION" ]; then
packageversion=$KDEB_PKGVERSION
revision=${packageversion##*-}
else
revision=$($srctree/init/build-version)
packageversion=$version-$revision
fi
sourcename=$KDEB_SOURCENAME
if [ "$ARCH" = "um" ] ; then
packagename=user-mode-linux
else
packagename=linux-image
fi
debarch=
set_debarch
email=${DEBEMAIL-$EMAIL}
# use email string directly if it contains <email>
if echo $email | grep -q '<.*>'; then
maintainer=$email
else
# or construct the maintainer string
user=${KBUILD_BUILD_USER-$(id -nu)}
name=${DEBFULLNAME-$user}
if [ -z "$email" ]; then
buildhost=${KBUILD_BUILD_HOST-$(hostname -f 2>/dev/null || hostname)}
email="$user@$buildhost"
fi
maintainer="$name <$email>"
fi
# Try to determine distribution
if [ -n "$KDEB_CHANGELOG_DIST" ]; then
distribution=$KDEB_CHANGELOG_DIST
# In some cases lsb_release returns the codename as n/a, which breaks dpkg-parsechangelog
elif distribution=$(lsb_release -cs 2>/dev/null) && [ -n "$distribution" ] && [ "$distribution" != "n/a" ]; then
: # nothing to do in this case
else
distribution="unstable"
echo >&2 "Using default distribution of 'unstable' in the changelog"
echo >&2 "Install lsb-release or set \$KDEB_CHANGELOG_DIST explicitly"
fi
mkdir -p debian/source/
echo "1.0" > debian/source/format
echo $debarch > debian/arch
extra_build_depends=", $(if_enabled_echo CONFIG_UNWINDER_ORC libelf-dev:native)"
extra_build_depends="$extra_build_depends, $(if_enabled_echo CONFIG_SYSTEM_TRUSTED_KEYRING libssl-dev:native)"
# Generate a simple changelog template
cat <<EOF > debian/changelog
$sourcename ($packageversion) $distribution; urgency=low
* Custom built Linux kernel.
-- $maintainer $(date -R)
EOF
# Generate copyright file
cat <<EOF > debian/copyright
This is a packacked upstream version of the Linux kernel.
The sources may be found at most Linux archive sites, including:
https://www.kernel.org/pub/linux/kernel
Copyright: 1991 - 2018 Linus Torvalds and others.
The git repository for mainline kernel development is at:
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 dated June, 1991.
On Debian GNU/Linux systems, the complete text of the GNU General Public
License version 2 can be found in \`/usr/share/common-licenses/GPL-2'.
EOF
# Generate a control file
cat <<EOF > debian/control
Source: $sourcename
Section: kernel
Priority: optional
Maintainer: $maintainer
Rules-Requires-Root: no
Build-Depends: bc, rsync, kmod, cpio, bison, flex $extra_build_depends
Homepage: https://www.kernel.org/
Package: $packagename-$version
Architecture: $debarch
Description: Linux kernel, version $version
This package contains the Linux kernel, modules and corresponding other
files, version: $version.
Package: linux-libc-dev
Section: devel
Provides: linux-kernel-headers
Architecture: $debarch
Description: Linux support headers for userspace development
This package provides userspaces headers from the Linux kernel. These headers
are used by the installed headers for GNU glibc and other system libraries.
Multi-Arch: same
EOF
if is_enabled CONFIG_MODULES; then
cat <<EOF >> debian/control
Package: linux-headers-$version
Architecture: $debarch
Description: Linux kernel headers for $version on $debarch
This package provides kernel header files for $version on $debarch
.
This is useful for people who need to build external modules
EOF
fi
if is_enabled CONFIG_DEBUG_INFO; then
cat <<EOF >> debian/control
Package: linux-image-$version-dbg
Section: debug
Architecture: $debarch
Description: Linux kernel debugging symbols for $version
This package will come in handy if you need to debug the kernel. It provides
all the necessary debug symbols for the kernel and its modules.
EOF
fi
cat <<EOF > debian/rules
#!$(command -v $MAKE) -f
srctree ?= .
build-indep:
build-arch:
\$(MAKE) KERNELRELEASE=${version} ARCH=${ARCH} \
KBUILD_BUILD_VERSION=${revision} -f \$(srctree)/Makefile
build: build-arch
binary-indep:
binary-arch: build-arch
\$(MAKE) KERNELRELEASE=${version} ARCH=${ARCH} \
KBUILD_BUILD_VERSION=${revision} -f \$(srctree)/Makefile intdeb-pkg
clean:
rm -rf debian/*tmp debian/files
\$(MAKE) clean
binary: binary-arch
EOF
chmod +x debian/rules
exit 0
|
