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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
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 "$3"
24 fi
25}
26
27create_package() {
28 export DH_OPTIONS="-p${1}"
29
30 dh_installdocs
31 dh_installchangelogs
32 dh_compress
33 dh_fixperms
34 dh_gencontrol
35 dh_md5sums
36 dh_builddeb -- ${KDEB_COMPRESS:+-Z$KDEB_COMPRESS}
37}
38
39install_linux_image () {
40 pname=$1
41 pdir=debian/$1
42
43 rm -rf ${pdir}
44
45 # Only some architectures with OF support have this target
46 if is_enabled CONFIG_OF_EARLY_FLATTREE && [ -d "${srctree}/arch/${SRCARCH}/boot/dts" ]; then
47 ${MAKE} -f ${srctree}/Makefile INSTALL_DTBS_PATH="${pdir}/usr/lib/linux-image-${KERNELRELEASE}" dtbs_install
48 fi
49
50 ${MAKE} -f ${srctree}/Makefile INSTALL_MOD_PATH="${pdir}" INSTALL_MOD_STRIP=1 modules_install
51 rm -f "${pdir}/lib/modules/${KERNELRELEASE}/build"
52
53 # Install the kernel
54 if [ "${ARCH}" = um ] ; then
55 mkdir -p "${pdir}/usr/lib/uml/modules"
56 mv "${pdir}/lib/modules/${KERNELRELEASE}" "${pdir}/usr/lib/uml/modules/${KERNELRELEASE}"
57 mkdir -p "${pdir}/usr/bin" "${pdir}/usr/share/doc/${pname}"
58 cp System.map "${pdir}/usr/lib/uml/modules/${KERNELRELEASE}/System.map"
59 cp ${KCONFIG_CONFIG} "${pdir}/usr/share/doc/${pname}/config"
60 gzip "${pdir}/usr/share/doc/${pname}/config"
61 else
62 mkdir -p "${pdir}/boot"
63 cp System.map "${pdir}/boot/System.map-${KERNELRELEASE}"
64 cp ${KCONFIG_CONFIG} "${pdir}/boot/config-${KERNELRELEASE}"
65 fi
66
67 # Not all arches have the same installed path in debian
68 # XXX: have each arch Makefile export a variable of the canonical image install
69 # path instead
70 case "${SRCARCH}" in
71 um)
72 installed_image_path="usr/bin/linux-${KERNELRELEASE}";;
73 parisc|mips|powerpc)
74 installed_image_path="boot/vmlinux-${KERNELRELEASE}";;
75 *)
76 installed_image_path="boot/vmlinuz-${KERNELRELEASE}";;
77 esac
78 cp "$(${MAKE} -s -f ${srctree}/Makefile image_name)" "${pdir}/${installed_image_path}"
79
80 # Install the maintainer scripts
81 # Note: hook scripts under /etc/kernel are also executed by official Debian
82 # kernel packages, as well as kernel packages built using make-kpkg.
83 # make-kpkg sets $INITRD to indicate whether an initramfs is wanted, and
84 # so do we; recent versions of dracut and initramfs-tools will obey this.
85 debhookdir=${KDEB_HOOKDIR:-/etc/kernel}
86 for script in postinst postrm preinst prerm; do
87 mkdir -p "${pdir}${debhookdir}/${script}.d"
88
89 mkdir -p "${pdir}/DEBIAN"
90 cat <<-EOF > "${pdir}/DEBIAN/${script}"
91
92 #!/bin/sh
93
94 set -e
95
96 # Pass maintainer script parameters to hook scripts
97 export DEB_MAINT_PARAMS="\$*"
98
99 # Tell initramfs builder whether it's wanted
100 export INITRD=$(if_enabled_echo CONFIG_BLK_DEV_INITRD Yes No)
101
102 test -d ${debhookdir}/${script}.d && run-parts --arg="${KERNELRELEASE}" --arg="/${installed_image_path}" ${debhookdir}/${script}.d
103 exit 0
104 EOF
105 chmod 755 "${pdir}/DEBIAN/${script}"
106 done
107}
108
109install_linux_image_dbg () {
110 pdir=debian/$1
111
112 rm -rf ${pdir}
113
114 # Parse modules.order directly because 'make modules_install' may sign,
115 # compress modules, and then run unneeded depmod.
116 while read -r mod; do
117 mod="${mod%.o}.ko"
118 dbg="${pdir}/usr/lib/debug/lib/modules/${KERNELRELEASE}/kernel/${mod}"
119 buildid=$("${READELF}" -n "${mod}" | sed -n 's@^.*Build ID: \(..\)\(.*\)@\1/\2@p')
120 link="${pdir}/usr/lib/debug/.build-id/${buildid}.debug"
121
122 mkdir -p "${dbg%/*}" "${link%/*}"
123 "${OBJCOPY}" --only-keep-debug "${mod}" "${dbg}"
124 ln -sf --relative "${dbg}" "${link}"
125 done < modules.order
126
127 # Build debug package
128 # Different tools want the image in different locations
129 # perf
130 mkdir -p ${pdir}/usr/lib/debug/lib/modules/${KERNELRELEASE}/
131 cp vmlinux ${pdir}/usr/lib/debug/lib/modules/${KERNELRELEASE}/
132 # systemtap
133 mkdir -p ${pdir}/usr/lib/debug/boot/
134 ln -s ../lib/modules/${KERNELRELEASE}/vmlinux ${pdir}/usr/lib/debug/boot/vmlinux-${KERNELRELEASE}
135 # kdump-tools
136 ln -s lib/modules/${KERNELRELEASE}/vmlinux ${pdir}/usr/lib/debug/vmlinux-${KERNELRELEASE}
137}
138
139install_kernel_headers () {
140 pdir=debian/$1
141 version=${1#linux-headers-}
142
143 rm -rf $pdir
144
145 "${srctree}/scripts/package/install-extmod-build" "${pdir}/usr/src/linux-headers-${version}"
146
147 mkdir -p $pdir/lib/modules/$version/
148 ln -s /usr/src/linux-headers-$version $pdir/lib/modules/$version/build
149}
150
151install_libc_headers () {
152 pdir=debian/$1
153
154 rm -rf $pdir
155
156 $MAKE -f $srctree/Makefile headers_install INSTALL_HDR_PATH=$pdir/usr
157
158 # move asm headers to /usr/include/<libc-machine>/asm to match the structure
159 # used by Debian-based distros (to support multi-arch)
160 mkdir "$pdir/usr/include/${DEB_HOST_MULTIARCH}"
161 mv "$pdir/usr/include/asm" "$pdir/usr/include/${DEB_HOST_MULTIARCH}"
162}
163
164rm -f debian/files
165
166packages_enabled=$(dh_listpackages)
167
168for package in ${packages_enabled}
169do
170 case ${package} in
171 *-dbg)
172 install_linux_image_dbg "${package}";;
173 linux-image-*|user-mode-linux-*)
174 install_linux_image "${package}";;
175 linux-libc-dev)
176 install_libc_headers "${package}";;
177 linux-headers-*)
178 install_kernel_headers "${package}";;
179 esac
180 create_package "${package}"
181done
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 $KCONFIG_CONFIG && echo el || true) ;;
45 arm*)
46 debarch=arm$(grep -q CONFIG_AEABI=y $KCONFIG_CONFIG && echo el || true) ;;
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 $forcearch -Vkernel:debarch="${debarch:-$(dpkg --print-architecture)}" -p$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"
81dbg_dir="$objtree/debian/dbgtmp"
82packagename=linux-image-$version
83fwpackagename=linux-firmware-image-$version
84kernel_headers_packagename=linux-headers-$version
85libc_headers_packagename=linux-libc-dev
86dbg_packagename=$packagename-dbg
87
88if [ "$ARCH" = "um" ] ; then
89 packagename=user-mode-linux-$version
90fi
91
92# Not all arches have the same installed path in debian
93# XXX: have each arch Makefile export a variable of the canonical image install
94# path instead
95case $ARCH in
96um)
97 installed_image_path="usr/bin/linux-$version"
98 ;;
99parisc|mips|powerpc)
100 installed_image_path="boot/vmlinux-$version"
101 ;;
102*)
103 installed_image_path="boot/vmlinuz-$version"
104esac
105
106BUILD_DEBUG="$(grep -s '^CONFIG_DEBUG_INFO=y' $KCONFIG_CONFIG || true)"
107
108# Setup the directory structure
109rm -rf "$tmpdir" "$fwdir" "$kernel_headers_dir" "$libc_headers_dir" "$dbg_dir"
110mkdir -m 755 -p "$tmpdir/DEBIAN"
111mkdir -p "$tmpdir/lib" "$tmpdir/boot" "$tmpdir/usr/share/doc/$packagename"
112mkdir -m 755 -p "$fwdir/DEBIAN"
113mkdir -p "$fwdir/lib/firmware/$version/" "$fwdir/usr/share/doc/$fwpackagename"
114mkdir -m 755 -p "$libc_headers_dir/DEBIAN"
115mkdir -p "$libc_headers_dir/usr/share/doc/$libc_headers_packagename"
116mkdir -m 755 -p "$kernel_headers_dir/DEBIAN"
117mkdir -p "$kernel_headers_dir/usr/share/doc/$kernel_headers_packagename"
118mkdir -p "$kernel_headers_dir/lib/modules/$version/"
119if [ "$ARCH" = "um" ] ; then
120 mkdir -p "$tmpdir/usr/lib/uml/modules/$version" "$tmpdir/usr/bin"
121fi
122if [ -n "$BUILD_DEBUG" ] ; then
123 mkdir -p "$dbg_dir/usr/share/doc/$dbg_packagename"
124 mkdir -m 755 -p "$dbg_dir/DEBIAN"
125fi
126
127# Build and install the kernel
128if [ "$ARCH" = "um" ] ; then
129 $MAKE linux
130 cp System.map "$tmpdir/usr/lib/uml/modules/$version/System.map"
131 cp $KCONFIG_CONFIG "$tmpdir/usr/share/doc/$packagename/config"
132 gzip "$tmpdir/usr/share/doc/$packagename/config"
133else
134 cp System.map "$tmpdir/boot/System.map-$version"
135 cp $KCONFIG_CONFIG "$tmpdir/boot/config-$version"
136fi
137# Not all arches include the boot path in KBUILD_IMAGE
138if [ -e $KBUILD_IMAGE ]; then
139 cp $KBUILD_IMAGE "$tmpdir/$installed_image_path"
140else
141 cp arch/$ARCH/boot/$KBUILD_IMAGE "$tmpdir/$installed_image_path"
142fi
143
144if grep -q '^CONFIG_MODULES=y' $KCONFIG_CONFIG ; then
145 INSTALL_MOD_PATH="$tmpdir" $MAKE KBUILD_SRC= modules_install
146 rm -f "$tmpdir/lib/modules/$version/build"
147 rm -f "$tmpdir/lib/modules/$version/source"
148 if [ "$ARCH" = "um" ] ; then
149 mv "$tmpdir/lib/modules/$version"/* "$tmpdir/usr/lib/uml/modules/$version/"
150 rmdir "$tmpdir/lib/modules/$version"
151 fi
152 if [ -n "$BUILD_DEBUG" ] ; then
153 (
154 cd $tmpdir
155 for module in $(find lib/modules/ -name *.ko); do
156 mkdir -p $(dirname $dbg_dir/usr/lib/debug/$module)
157 # only keep debug symbols in the debug file
158 objcopy --only-keep-debug $module $dbg_dir/usr/lib/debug/$module
159 # strip original module from debug symbols
160 objcopy --strip-debug $module
161 # then add a link to those
162 objcopy --add-gnu-debuglink=$dbg_dir/usr/lib/debug/$module $module
163 done
164 )
165 fi
166fi
167
168if [ "$ARCH" != "um" ]; then
169 $MAKE headers_check KBUILD_SRC=
170 $MAKE headers_install KBUILD_SRC= INSTALL_HDR_PATH="$libc_headers_dir/usr"
171fi
172
173# Install the maintainer scripts
174# Note: hook scripts under /etc/kernel are also executed by official Debian
175# kernel packages, as well as kernel packages built using make-kpkg.
176# make-kpkg sets $INITRD to indicate whether an initramfs is wanted, and
177# so do we; recent versions of dracut and initramfs-tools will obey this.
178debhookdir=${KDEB_HOOKDIR:-/etc/kernel}
179if grep -q '^CONFIG_BLK_DEV_INITRD=y' $KCONFIG_CONFIG; then
180 want_initrd=Yes
181else
182 want_initrd=No
183fi
184for script in postinst postrm preinst prerm ; do
185 mkdir -p "$tmpdir$debhookdir/$script.d"
186 cat <<EOF > "$tmpdir/DEBIAN/$script"
187#!/bin/sh
188
189set -e
190
191# Pass maintainer script parameters to hook scripts
192export DEB_MAINT_PARAMS="\$*"
193
194# Tell initramfs builder whether it's wanted
195export INITRD=$want_initrd
196
197test -d $debhookdir/$script.d && run-parts --arg="$version" --arg="/$installed_image_path" $debhookdir/$script.d
198exit 0
199EOF
200 chmod 755 "$tmpdir/DEBIAN/$script"
201done
202
203# Try to determine maintainer and email values
204if [ -n "$DEBEMAIL" ]; then
205 email=$DEBEMAIL
206elif [ -n "$EMAIL" ]; then
207 email=$EMAIL
208else
209 email=$(id -nu)@$(hostname -f)
210fi
211if [ -n "$DEBFULLNAME" ]; then
212 name=$DEBFULLNAME
213elif [ -n "$NAME" ]; then
214 name=$NAME
215else
216 name="Anonymous"
217fi
218maintainer="$name <$email>"
219
220# Generate a simple changelog template
221cat <<EOF > debian/changelog
222linux-upstream ($packageversion) unstable; urgency=low
223
224 * Custom built Linux kernel.
225
226 -- $maintainer $(date -R)
227EOF
228
229# Generate copyright file
230cat <<EOF > debian/copyright
231This is a packacked upstream version of the Linux kernel.
232
233The sources may be found at most Linux ftp sites, including:
234ftp://ftp.kernel.org/pub/linux/kernel
235
236Copyright: 1991 - 2009 Linus Torvalds and others.
237
238The git repository for mainline kernel development is at:
239git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
240
241 This program is free software; you can redistribute it and/or modify
242 it under the terms of the GNU General Public License as published by
243 the Free Software Foundation; version 2 dated June, 1991.
244
245On Debian GNU/Linux systems, the complete text of the GNU General Public
246License version 2 can be found in \`/usr/share/common-licenses/GPL-2'.
247EOF
248
249# Generate a control file
250cat <<EOF > debian/control
251Source: linux-upstream
252Section: kernel
253Priority: optional
254Maintainer: $maintainer
255Standards-Version: 3.8.4
256Homepage: http://www.kernel.org/
257EOF
258
259if [ "$ARCH" = "um" ]; then
260 cat <<EOF >> debian/control
261
262Package: $packagename
263Provides: linux-image, linux-image-2.6, linux-modules-$version
264Architecture: any
265Description: User Mode Linux kernel, version $version
266 User-mode Linux is a port of the Linux kernel to its own system call
267 interface. It provides a kind of virtual machine, which runs Linux
268 as a user process under another Linux kernel. This is useful for
269 kernel development, sandboxes, jails, experimentation, and
270 many other things.
271 .
272 This package contains the Linux kernel, modules and corresponding other
273 files, version: $version.
274EOF
275
276else
277 cat <<EOF >> debian/control
278
279Package: $packagename
280Provides: linux-image, linux-image-2.6, linux-modules-$version
281Suggests: $fwpackagename
282Architecture: any
283Description: Linux kernel, version $version
284 This package contains the Linux kernel, modules and corresponding other
285 files, version: $version.
286EOF
287
288fi
289
290# Build header package
291(cd $srctree; find . -name Makefile\* -o -name Kconfig\* -o -name \*.pl > "$objtree/debian/hdrsrcfiles")
292(cd $srctree; find arch/$SRCARCH/include include scripts -type f >> "$objtree/debian/hdrsrcfiles")
293(cd $objtree; find arch/$SRCARCH/include Module.symvers include scripts -type f >> "$objtree/debian/hdrobjfiles")
294destdir=$kernel_headers_dir/usr/src/linux-headers-$version
295mkdir -p "$destdir"
296(cd $srctree; tar -c -f - -T "$objtree/debian/hdrsrcfiles") | (cd $destdir; tar -xf -)
297(cd $objtree; tar -c -f - -T "$objtree/debian/hdrobjfiles") | (cd $destdir; tar -xf -)
298(cd $objtree; cp $KCONFIG_CONFIG $destdir/.config) # copy .config manually to be where it's expected to be
299ln -sf "/usr/src/linux-headers-$version" "$kernel_headers_dir/lib/modules/$version/build"
300rm -f "$objtree/debian/hdrsrcfiles" "$objtree/debian/hdrobjfiles"
301
302cat <<EOF >> debian/control
303
304Package: $kernel_headers_packagename
305Provides: linux-headers, linux-headers-2.6
306Architecture: any
307Description: Linux kernel headers for $KERNELRELEASE on \${kernel:debarch}
308 This package provides kernel header files for $KERNELRELEASE on \${kernel:debarch}
309 .
310 This is useful for people who need to build external modules
311EOF
312
313# Do we have firmware? Move it out of the way and build it into a package.
314if [ -e "$tmpdir/lib/firmware" ]; then
315 mv "$tmpdir/lib/firmware"/* "$fwdir/lib/firmware/$version/"
316 rmdir "$tmpdir/lib/firmware"
317
318 cat <<EOF >> debian/control
319
320Package: $fwpackagename
321Architecture: all
322Description: Linux kernel firmware, version $version
323 This package contains firmware from the Linux kernel, version $version.
324EOF
325
326 create_package "$fwpackagename" "$fwdir"
327fi
328
329cat <<EOF >> debian/control
330
331Package: $libc_headers_packagename
332Section: devel
333Provides: linux-kernel-headers
334Architecture: any
335Description: Linux support headers for userspace development
336 This package provides userspaces headers from the Linux kernel. These headers
337 are used by the installed headers for GNU glibc and other system libraries.
338EOF
339
340if [ "$ARCH" != "um" ]; then
341 create_package "$kernel_headers_packagename" "$kernel_headers_dir"
342 create_package "$libc_headers_packagename" "$libc_headers_dir"
343fi
344
345create_package "$packagename" "$tmpdir"
346
347if [ -n "$BUILD_DEBUG" ] ; then
348 # Build debug package
349 # Different tools want the image in different locations
350 # perf
351 mkdir -p $dbg_dir/usr/lib/debug/lib/modules/$version/
352 cp vmlinux $dbg_dir/usr/lib/debug/lib/modules/$version/
353 # systemtap
354 mkdir -p $dbg_dir/usr/lib/debug/boot/
355 ln -s ../lib/modules/$version/vmlinux $dbg_dir/usr/lib/debug/boot/vmlinux-$version
356 # kdump-tools
357 ln -s lib/modules/$version/vmlinux $dbg_dir/usr/lib/debug/vmlinux-$version
358
359 cat <<EOF >> debian/control
360
361Package: $dbg_packagename
362Section: debug
363Provides: linux-debug, linux-debug-$version
364Architecture: any
365Description: Linux kernel debugging symbols for $version
366 This package will come in handy if you need to debug the kernel. It provides
367 all the necessary debug symbols for the kernel and its modules.
368EOF
369
370 create_package "$dbg_packagename" "$dbg_dir"
371fi
372
373exit 0