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1#!/bin/sh
2#
3# builddeb 1.3
4# Copyright 2003 Wichert Akkerman <wichert@wiggy.net>
5#
6# Simple script to generate a deb package for a Linux kernel. All the
7# complexity of what to do with a kernel after it is installed or removed
8# is left to other scripts and packages: they can install scripts in the
9# /etc/kernel/{pre,post}{inst,rm}.d/ directories (or an alternative location
10# specified in KDEB_HOOKDIR) that will be called on package install and
11# removal.
12
13set -e
14
15create_package() {
16 local pname="$1" pdir="$2"
17
18 cp debian/copyright "$pdir/usr/share/doc/$pname/"
19 cp debian/changelog "$pdir/usr/share/doc/$pname/changelog.Debian"
20 gzip -9 "$pdir/usr/share/doc/$pname/changelog.Debian"
21 sh -c "cd '$pdir'; find . -type f ! -path './DEBIAN/*' -printf '%P\0' \
22 | xargs -r0 md5sum > DEBIAN/md5sums"
23
24 # Fix ownership and permissions
25 chown -R root:root "$pdir"
26 chmod -R go-w "$pdir"
27
28 # Attempt to find the correct Debian architecture
29 local forcearch="" debarch=""
30 case "$UTS_MACHINE" in
31 i386|ia64|alpha)
32 debarch="$UTS_MACHINE" ;;
33 x86_64)
34 debarch=amd64 ;;
35 sparc*)
36 debarch=sparc ;;
37 s390*)
38 debarch=s390 ;;
39 ppc*)
40 debarch=powerpc ;;
41 parisc*)
42 debarch=hppa ;;
43 mips*)
44 debarch=mips$(grep -q CPU_LITTLE_ENDIAN=y .config && echo el) ;;
45 arm*)
46 debarch=arm$(grep -q CONFIG_AEABI=y .config && echo el) ;;
47 *)
48 echo "" >&2
49 echo "** ** ** WARNING ** ** **" >&2
50 echo "" >&2
51 echo "Your architecture doesn't have it's equivalent" >&2
52 echo "Debian userspace architecture defined!" >&2
53 echo "Falling back to using your current userspace instead!" >&2
54 echo "Please add support for $UTS_MACHINE to ${0} ..." >&2
55 echo "" >&2
56 esac
57 if [ -n "$KBUILD_DEBARCH" ] ; then
58 debarch="$KBUILD_DEBARCH"
59 fi
60 if [ -n "$debarch" ] ; then
61 forcearch="-DArchitecture=$debarch"
62 fi
63
64 # Create the package
65 dpkg-gencontrol -isp $forcearch -p$pname -P"$pdir"
66 dpkg --build "$pdir" ..
67}
68
69# Some variables and settings used throughout the script
70version=$KERNELRELEASE
71revision=$(cat .version)
72if [ -n "$KDEB_PKGVERSION" ]; then
73 packageversion=$KDEB_PKGVERSION
74else
75 packageversion=$version-$revision
76fi
77tmpdir="$objtree/debian/tmp"
78fwdir="$objtree/debian/fwtmp"
79kernel_headers_dir="$objtree/debian/hdrtmp"
80libc_headers_dir="$objtree/debian/headertmp"
81packagename=linux-image-$version
82fwpackagename=linux-firmware-image
83kernel_headers_packagename=linux-headers-$version
84libc_headers_packagename=linux-libc-dev
85
86if [ "$ARCH" = "um" ] ; then
87 packagename=user-mode-linux-$version
88fi
89
90# Setup the directory structure
91rm -rf "$tmpdir" "$fwdir" "$kernel_headers_dir" "$libc_headers_dir"
92mkdir -m 755 -p "$tmpdir/DEBIAN"
93mkdir -p "$tmpdir/lib" "$tmpdir/boot" "$tmpdir/usr/share/doc/$packagename"
94mkdir -m 755 -p "$fwdir/DEBIAN"
95mkdir -p "$fwdir/lib" "$fwdir/usr/share/doc/$fwpackagename"
96mkdir -m 755 -p "$libc_headers_dir/DEBIAN"
97mkdir -p "$libc_headers_dir/usr/share/doc/$libc_headers_packagename"
98mkdir -m 755 -p "$kernel_headers_dir/DEBIAN"
99mkdir -p "$kernel_headers_dir/usr/share/doc/$kernel_headers_packagename"
100mkdir -p "$kernel_headers_dir/lib/modules/$version/"
101if [ "$ARCH" = "um" ] ; then
102 mkdir -p "$tmpdir/usr/lib/uml/modules/$version" "$tmpdir/usr/bin"
103fi
104
105# Build and install the kernel
106if [ "$ARCH" = "um" ] ; then
107 $MAKE linux
108 cp System.map "$tmpdir/usr/lib/uml/modules/$version/System.map"
109 cp .config "$tmpdir/usr/share/doc/$packagename/config"
110 gzip "$tmpdir/usr/share/doc/$packagename/config"
111 cp $KBUILD_IMAGE "$tmpdir/usr/bin/linux-$version"
112else
113 cp System.map "$tmpdir/boot/System.map-$version"
114 cp .config "$tmpdir/boot/config-$version"
115 # Not all arches include the boot path in KBUILD_IMAGE
116 if [ -e $KBUILD_IMAGE ]; then
117 cp $KBUILD_IMAGE "$tmpdir/boot/vmlinuz-$version"
118 else
119 cp arch/$ARCH/boot/$KBUILD_IMAGE "$tmpdir/boot/vmlinuz-$version"
120 fi
121fi
122
123if grep -q '^CONFIG_MODULES=y' .config ; then
124 INSTALL_MOD_PATH="$tmpdir" $MAKE KBUILD_SRC= modules_install
125 rm -f "$tmpdir/lib/modules/$version/build"
126 rm -f "$tmpdir/lib/modules/$version/source"
127 if [ "$ARCH" = "um" ] ; then
128 mv "$tmpdir/lib/modules/$version"/* "$tmpdir/usr/lib/uml/modules/$version/"
129 rmdir "$tmpdir/lib/modules/$version"
130 fi
131fi
132
133if [ "$ARCH" != "um" ]; then
134 $MAKE headers_check KBUILD_SRC=
135 $MAKE headers_install KBUILD_SRC= INSTALL_HDR_PATH="$libc_headers_dir/usr"
136fi
137
138# Install the maintainer scripts
139# Note: hook scripts under /etc/kernel are also executed by official Debian
140# kernel packages, as well as kernel packages built using make-kpkg
141debhookdir=${KDEB_HOOKDIR:-/etc/kernel}
142for script in postinst postrm preinst prerm ; do
143 mkdir -p "$tmpdir$debhookdir/$script.d"
144 cat <<EOF > "$tmpdir/DEBIAN/$script"
145#!/bin/sh
146
147set -e
148
149# Pass maintainer script parameters to hook scripts
150export DEB_MAINT_PARAMS="\$*"
151
152test -d $debhookdir/$script.d && run-parts --arg="$version" $debhookdir/$script.d
153exit 0
154EOF
155 chmod 755 "$tmpdir/DEBIAN/$script"
156done
157
158# Try to determine maintainer and email values
159if [ -n "$DEBEMAIL" ]; then
160 email=$DEBEMAIL
161elif [ -n "$EMAIL" ]; then
162 email=$EMAIL
163else
164 email=$(id -nu)@$(hostname -f)
165fi
166if [ -n "$DEBFULLNAME" ]; then
167 name=$DEBFULLNAME
168elif [ -n "$NAME" ]; then
169 name=$NAME
170else
171 name="Anonymous"
172fi
173maintainer="$name <$email>"
174
175# Generate a simple changelog template
176cat <<EOF > debian/changelog
177linux-upstream ($packageversion) unstable; urgency=low
178
179 * Custom built Linux kernel.
180
181 -- $maintainer $(date -R)
182EOF
183
184# Generate copyright file
185cat <<EOF > debian/copyright
186This is a packacked upstream version of the Linux kernel.
187
188The sources may be found at most Linux ftp sites, including:
189ftp://ftp.kernel.org/pub/linux/kernel
190
191Copyright: 1991 - 2009 Linus Torvalds and others.
192
193The git repository for mainline kernel development is at:
194git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
195
196 This program is free software; you can redistribute it and/or modify
197 it under the terms of the GNU General Public License as published by
198 the Free Software Foundation; version 2 dated June, 1991.
199
200On Debian GNU/Linux systems, the complete text of the GNU General Public
201License version 2 can be found in \`/usr/share/common-licenses/GPL-2'.
202EOF
203
204# Generate a control file
205cat <<EOF > debian/control
206Source: linux-upstream
207Section: kernel
208Priority: optional
209Maintainer: $maintainer
210Standards-Version: 3.8.4
211Homepage: http://www.kernel.org/
212EOF
213
214if [ "$ARCH" = "um" ]; then
215 cat <<EOF >> debian/control
216
217Package: $packagename
218Provides: linux-image, linux-image-2.6, linux-modules-$version
219Architecture: any
220Description: User Mode Linux kernel, version $version
221 User-mode Linux is a port of the Linux kernel to its own system call
222 interface. It provides a kind of virtual machine, which runs Linux
223 as a user process under another Linux kernel. This is useful for
224 kernel development, sandboxes, jails, experimentation, and
225 many other things.
226 .
227 This package contains the Linux kernel, modules and corresponding other
228 files, version: $version.
229EOF
230
231else
232 cat <<EOF >> debian/control
233
234Package: $packagename
235Provides: linux-image, linux-image-2.6, linux-modules-$version
236Suggests: $fwpackagename
237Architecture: any
238Description: Linux kernel, version $version
239 This package contains the Linux kernel, modules and corresponding other
240 files, version: $version.
241EOF
242
243fi
244
245# Build header package
246(cd $srctree; find . -name Makefile -o -name Kconfig\* -o -name \*.pl > "$objtree/debian/hdrsrcfiles")
247(cd $srctree; find arch/$SRCARCH/include include scripts -type f >> "$objtree/debian/hdrsrcfiles")
248(cd $objtree; find arch/$SRCARCH/include .config Module.symvers include scripts -type f >> "$objtree/debian/hdrobjfiles")
249destdir=$kernel_headers_dir/usr/src/linux-headers-$version
250mkdir -p "$destdir"
251(cd $srctree; tar -c -f - -T "$objtree/debian/hdrsrcfiles") | (cd $destdir; tar -xf -)
252(cd $objtree; tar -c -f - -T "$objtree/debian/hdrobjfiles") | (cd $destdir; tar -xf -)
253ln -sf "/usr/src/linux-headers-$version" "$kernel_headers_dir/lib/modules/$version/build"
254rm -f "$objtree/debian/hdrsrcfiles" "$objtree/debian/hdrobjfiles"
255arch=$(dpkg --print-architecture)
256
257cat <<EOF >> debian/control
258
259Package: $kernel_headers_packagename
260Provides: linux-headers, linux-headers-2.6
261Architecture: $arch
262Description: Linux kernel headers for $KERNELRELEASE on $arch
263 This package provides kernel header files for $KERNELRELEASE on $arch
264 .
265 This is useful for people who need to build external modules
266EOF
267
268# Do we have firmware? Move it out of the way and build it into a package.
269if [ -e "$tmpdir/lib/firmware" ]; then
270 mv "$tmpdir/lib/firmware" "$fwdir/lib/"
271
272 cat <<EOF >> debian/control
273
274Package: $fwpackagename
275Architecture: all
276Description: Linux kernel firmware, version $version
277 This package contains firmware from the Linux kernel, version $version.
278EOF
279
280 create_package "$fwpackagename" "$fwdir"
281fi
282
283cat <<EOF >> debian/control
284
285Package: $libc_headers_packagename
286Section: devel
287Provides: linux-kernel-headers
288Architecture: any
289Description: Linux support headers for userspace development
290 This package provides userspaces headers from the Linux kernel. These headers
291 are used by the installed headers for GNU glibc and other system libraries.
292EOF
293
294if [ "$ARCH" != "um" ]; then
295 create_package "$kernel_headers_packagename" "$kernel_headers_dir"
296 create_package "$libc_headers_packagename" "$libc_headers_dir"
297fi
298
299create_package "$packagename" "$tmpdir"
300
301exit 0
1#!/bin/sh
2#
3# builddeb 1.3
4# Copyright 2003 Wichert Akkerman <wichert@wiggy.net>
5#
6# Simple script to generate a deb package for a Linux kernel. All the
7# complexity of what to do with a kernel after it is installed or removed
8# is left to other scripts and packages: they can install scripts in the
9# /etc/kernel/{pre,post}{inst,rm}.d/ directories (or an alternative location
10# specified in KDEB_HOOKDIR) that will be called on package install and
11# removal.
12
13set -e
14
15is_enabled() {
16 grep -q "^$1=y" include/config/auto.conf
17}
18
19if_enabled_echo() {
20 if is_enabled "$1"; then
21 echo -n "$2"
22 elif [ $# -ge 3 ]; then
23 echo -n "$3"
24 fi
25}
26
27create_package() {
28 local pname="$1" pdir="$2"
29 local dpkg_deb_opts
30
31 mkdir -m 755 -p "$pdir/DEBIAN"
32 mkdir -p "$pdir/usr/share/doc/$pname"
33 cp debian/copyright "$pdir/usr/share/doc/$pname/"
34 cp debian/changelog "$pdir/usr/share/doc/$pname/changelog.Debian"
35 gzip -n -9 "$pdir/usr/share/doc/$pname/changelog.Debian"
36 sh -c "cd '$pdir'; find . -type f ! -path './DEBIAN/*' -printf '%P\0' \
37 | xargs -r0 md5sum > DEBIAN/md5sums"
38
39 # Fix ownership and permissions
40 if [ "$DEB_RULES_REQUIRES_ROOT" = "no" ]; then
41 dpkg_deb_opts="--root-owner-group"
42 else
43 chown -R root:root "$pdir"
44 fi
45 chmod -R go-w "$pdir"
46 # in case we are in a restrictive umask environment like 0077
47 chmod -R a+rX "$pdir"
48 # in case we build in a setuid/setgid directory
49 chmod -R ug-s "$pdir"
50
51 # Create the package
52 dpkg-gencontrol -p$pname -P"$pdir"
53 dpkg-deb $dpkg_deb_opts ${KDEB_COMPRESS:+-Z$KDEB_COMPRESS} --build "$pdir" ..
54}
55
56deploy_kernel_headers () {
57 pdir=$1
58
59 rm -rf $pdir
60
61 (
62 cd $srctree
63 find . arch/$SRCARCH -maxdepth 1 -name Makefile\*
64 find include scripts -type f -o -type l
65 find arch/$SRCARCH -name Kbuild.platforms -o -name Platform
66 find $(find arch/$SRCARCH -name include -o -name scripts -type d) -type f
67 ) > debian/hdrsrcfiles
68
69 {
70 if is_enabled CONFIG_OBJTOOL; then
71 echo tools/objtool/objtool
72 fi
73
74 find arch/$SRCARCH/include Module.symvers include scripts -type f
75
76 if is_enabled CONFIG_GCC_PLUGINS; then
77 find scripts/gcc-plugins -name \*.so
78 fi
79 } > debian/hdrobjfiles
80
81 destdir=$pdir/usr/src/linux-headers-$version
82 mkdir -p $destdir
83 tar -c -f - -C $srctree -T debian/hdrsrcfiles | tar -xf - -C $destdir
84 tar -c -f - -T debian/hdrobjfiles | tar -xf - -C $destdir
85 rm -f debian/hdrsrcfiles debian/hdrobjfiles
86
87 # copy .config manually to be where it's expected to be
88 cp $KCONFIG_CONFIG $destdir/.config
89
90 mkdir -p $pdir/lib/modules/$version/
91 ln -s /usr/src/linux-headers-$version $pdir/lib/modules/$version/build
92}
93
94deploy_libc_headers () {
95 pdir=$1
96
97 rm -rf $pdir
98
99 $MAKE -f $srctree/Makefile headers
100 $MAKE -f $srctree/Makefile headers_install INSTALL_HDR_PATH=$pdir/usr
101
102 # move asm headers to /usr/include/<libc-machine>/asm to match the structure
103 # used by Debian-based distros (to support multi-arch)
104 host_arch=$(dpkg-architecture -a$(cat debian/arch) -qDEB_HOST_MULTIARCH)
105 mkdir $pdir/usr/include/$host_arch
106 mv $pdir/usr/include/asm $pdir/usr/include/$host_arch/
107}
108
109version=$KERNELRELEASE
110tmpdir=debian/linux-image
111dbg_dir=debian/linux-image-dbg
112packagename=linux-image-$version
113dbg_packagename=$packagename-dbg
114
115if [ "$ARCH" = "um" ] ; then
116 packagename=user-mode-linux-$version
117fi
118
119# Not all arches have the same installed path in debian
120# XXX: have each arch Makefile export a variable of the canonical image install
121# path instead
122case $ARCH in
123um)
124 installed_image_path="usr/bin/linux-$version"
125 ;;
126parisc|mips|powerpc)
127 installed_image_path="boot/vmlinux-$version"
128 ;;
129*)
130 installed_image_path="boot/vmlinuz-$version"
131esac
132
133BUILD_DEBUG=$(if_enabled_echo CONFIG_DEBUG_INFO Yes)
134
135# Setup the directory structure
136rm -rf "$tmpdir" "$dbg_dir" debian/files
137mkdir -m 755 -p "$tmpdir/DEBIAN"
138mkdir -p "$tmpdir/lib" "$tmpdir/boot"
139
140# Install the kernel
141if [ "$ARCH" = "um" ] ; then
142 mkdir -p "$tmpdir/usr/lib/uml/modules/$version" "$tmpdir/usr/bin" "$tmpdir/usr/share/doc/$packagename"
143 cp System.map "$tmpdir/usr/lib/uml/modules/$version/System.map"
144 cp $KCONFIG_CONFIG "$tmpdir/usr/share/doc/$packagename/config"
145 gzip "$tmpdir/usr/share/doc/$packagename/config"
146else
147 cp System.map "$tmpdir/boot/System.map-$version"
148 cp $KCONFIG_CONFIG "$tmpdir/boot/config-$version"
149fi
150cp "$($MAKE -s -f $srctree/Makefile image_name)" "$tmpdir/$installed_image_path"
151
152if is_enabled CONFIG_OF_EARLY_FLATTREE; then
153 # Only some architectures with OF support have this target
154 if [ -d "${srctree}/arch/$SRCARCH/boot/dts" ]; then
155 $MAKE -f $srctree/Makefile INSTALL_DTBS_PATH="$tmpdir/usr/lib/$packagename" dtbs_install
156 fi
157fi
158
159if is_enabled CONFIG_MODULES; then
160 INSTALL_MOD_PATH="$tmpdir" $MAKE -f $srctree/Makefile modules_install
161 rm -f "$tmpdir/lib/modules/$version/build"
162 rm -f "$tmpdir/lib/modules/$version/source"
163 if [ "$ARCH" = "um" ] ; then
164 mv "$tmpdir/lib/modules/$version"/* "$tmpdir/usr/lib/uml/modules/$version/"
165 rmdir "$tmpdir/lib/modules/$version"
166 fi
167 if [ -n "$BUILD_DEBUG" ] ; then
168 for module in $(find $tmpdir/lib/modules/ -name *.ko -printf '%P\n'); do
169 module=lib/modules/$module
170 mkdir -p $(dirname $dbg_dir/usr/lib/debug/$module)
171 # only keep debug symbols in the debug file
172 $OBJCOPY --only-keep-debug $tmpdir/$module $dbg_dir/usr/lib/debug/$module
173 # strip original module from debug symbols
174 $OBJCOPY --strip-debug $tmpdir/$module
175 # then add a link to those
176 $OBJCOPY --add-gnu-debuglink=$dbg_dir/usr/lib/debug/$module $tmpdir/$module
177 done
178
179 # resign stripped modules
180 if is_enabled CONFIG_MODULE_SIG_ALL; then
181 INSTALL_MOD_PATH="$tmpdir" $MAKE -f $srctree/Makefile modules_sign
182 fi
183 fi
184fi
185
186# Install the maintainer scripts
187# Note: hook scripts under /etc/kernel are also executed by official Debian
188# kernel packages, as well as kernel packages built using make-kpkg.
189# make-kpkg sets $INITRD to indicate whether an initramfs is wanted, and
190# so do we; recent versions of dracut and initramfs-tools will obey this.
191debhookdir=${KDEB_HOOKDIR:-/etc/kernel}
192for script in postinst postrm preinst prerm ; do
193 mkdir -p "$tmpdir$debhookdir/$script.d"
194 cat <<EOF > "$tmpdir/DEBIAN/$script"
195#!/bin/sh
196
197set -e
198
199# Pass maintainer script parameters to hook scripts
200export DEB_MAINT_PARAMS="\$*"
201
202# Tell initramfs builder whether it's wanted
203export INITRD=$(if_enabled_echo CONFIG_BLK_DEV_INITRD Yes No)
204
205test -d $debhookdir/$script.d && run-parts --arg="$version" --arg="/$installed_image_path" $debhookdir/$script.d
206exit 0
207EOF
208 chmod 755 "$tmpdir/DEBIAN/$script"
209done
210
211if [ "$ARCH" != "um" ]; then
212 if is_enabled CONFIG_MODULES; then
213 deploy_kernel_headers debian/linux-headers
214 create_package linux-headers-$version debian/linux-headers
215 fi
216
217 deploy_libc_headers debian/linux-libc-dev
218 create_package linux-libc-dev debian/linux-libc-dev
219fi
220
221create_package "$packagename" "$tmpdir"
222
223if [ -n "$BUILD_DEBUG" ] ; then
224 # Build debug package
225 # Different tools want the image in different locations
226 # perf
227 mkdir -p $dbg_dir/usr/lib/debug/lib/modules/$version/
228 cp vmlinux $dbg_dir/usr/lib/debug/lib/modules/$version/
229 # systemtap
230 mkdir -p $dbg_dir/usr/lib/debug/boot/
231 ln -s ../lib/modules/$version/vmlinux $dbg_dir/usr/lib/debug/boot/vmlinux-$version
232 # kdump-tools
233 ln -s lib/modules/$version/vmlinux $dbg_dir/usr/lib/debug/vmlinux-$version
234 create_package "$dbg_packagename" "$dbg_dir"
235fi
236
237exit 0