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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 -eu
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
27install_linux_image () {
28 pname=$1
29 pdir=debian/$1
30
31 # Only some architectures with OF support have this target
32 if is_enabled CONFIG_OF_EARLY_FLATTREE && [ -d "${srctree}/arch/${SRCARCH}/boot/dts" ]; then
33 ${MAKE} -f ${srctree}/Makefile INSTALL_DTBS_PATH="${pdir}/usr/lib/linux-image-${KERNELRELEASE}" dtbs_install
34 fi
35
36 ${MAKE} -f ${srctree}/Makefile INSTALL_MOD_PATH="${pdir}" INSTALL_MOD_STRIP=1 modules_install
37 rm -f "${pdir}/lib/modules/${KERNELRELEASE}/build"
38
39 # Install the kernel
40 if [ "${ARCH}" = um ] ; then
41 mkdir -p "${pdir}/usr/lib/uml/modules"
42 mv "${pdir}/lib/modules/${KERNELRELEASE}" "${pdir}/usr/lib/uml/modules/${KERNELRELEASE}"
43 mkdir -p "${pdir}/usr/bin" "${pdir}/usr/share/doc/${pname}"
44 cp System.map "${pdir}/usr/lib/uml/modules/${KERNELRELEASE}/System.map"
45 cp ${KCONFIG_CONFIG} "${pdir}/usr/share/doc/${pname}/config"
46 gzip "${pdir}/usr/share/doc/${pname}/config"
47 else
48 mkdir -p "${pdir}/boot"
49 cp System.map "${pdir}/boot/System.map-${KERNELRELEASE}"
50 cp ${KCONFIG_CONFIG} "${pdir}/boot/config-${KERNELRELEASE}"
51 fi
52
53 # Not all arches have the same installed path in debian
54 # XXX: have each arch Makefile export a variable of the canonical image install
55 # path instead
56 case "${SRCARCH}" in
57 um)
58 installed_image_path="usr/bin/linux-${KERNELRELEASE}";;
59 parisc|mips|powerpc)
60 installed_image_path="boot/vmlinux-${KERNELRELEASE}";;
61 *)
62 installed_image_path="boot/vmlinuz-${KERNELRELEASE}";;
63 esac
64 cp "$(${MAKE} -s -f ${srctree}/Makefile image_name)" "${pdir}/${installed_image_path}"
65
66 if [ "${ARCH}" != um ]; then
67 install_maint_scripts "${pdir}"
68 fi
69}
70
71install_maint_scripts () {
72 # Install the maintainer scripts
73 # Note: hook scripts under /etc/kernel are also executed by official Debian
74 # kernel packages, as well as kernel packages built using make-kpkg.
75 # make-kpkg sets $INITRD to indicate whether an initramfs is wanted, and
76 # so do we; recent versions of dracut and initramfs-tools will obey this.
77 debhookdir=${KDEB_HOOKDIR:-/etc/kernel}
78 for script in postinst postrm preinst prerm; do
79 mkdir -p "${pdir}${debhookdir}/${script}.d"
80
81 mkdir -p "${pdir}/DEBIAN"
82 cat <<-EOF > "${pdir}/DEBIAN/${script}"
83 #!/bin/sh
84
85 set -e
86
87 # Pass maintainer script parameters to hook scripts
88 export DEB_MAINT_PARAMS="\$*"
89
90 # Tell initramfs builder whether it's wanted
91 export INITRD=$(if_enabled_echo CONFIG_BLK_DEV_INITRD Yes No)
92
93 test -d ${debhookdir}/${script}.d && run-parts --arg="${KERNELRELEASE}" --arg="/${installed_image_path}" ${debhookdir}/${script}.d
94 exit 0
95 EOF
96 chmod 755 "${pdir}/DEBIAN/${script}"
97 done
98}
99
100install_linux_image_dbg () {
101 pdir=debian/$1
102
103 # Parse modules.order directly because 'make modules_install' may sign,
104 # compress modules, and then run unneeded depmod.
105 if is_enabled CONFIG_MODULES; then
106 while read -r mod; do
107 mod="${mod%.o}.ko"
108 dbg="${pdir}/usr/lib/debug/lib/modules/${KERNELRELEASE}/kernel/${mod}"
109 buildid=$("${READELF}" -n "${mod}" | sed -n 's@^.*Build ID: \(..\)\(.*\)@\1/\2@p')
110 link="${pdir}/usr/lib/debug/.build-id/${buildid}.debug"
111
112 mkdir -p "${dbg%/*}" "${link%/*}"
113 "${OBJCOPY}" --only-keep-debug "${mod}" "${dbg}"
114 ln -sf --relative "${dbg}" "${link}"
115 done < modules.order
116 fi
117
118 # Build debug package
119 # Different tools want the image in different locations
120 # perf
121 mkdir -p ${pdir}/usr/lib/debug/lib/modules/${KERNELRELEASE}/
122 cp vmlinux ${pdir}/usr/lib/debug/lib/modules/${KERNELRELEASE}/
123 # systemtap
124 mkdir -p ${pdir}/usr/lib/debug/boot/
125 ln -s ../lib/modules/${KERNELRELEASE}/vmlinux ${pdir}/usr/lib/debug/boot/vmlinux-${KERNELRELEASE}
126 # kdump-tools
127 ln -s lib/modules/${KERNELRELEASE}/vmlinux ${pdir}/usr/lib/debug/vmlinux-${KERNELRELEASE}
128}
129
130install_kernel_headers () {
131 pdir=debian/$1
132 version=${1#linux-headers-}
133
134 CC="${DEB_HOST_GNU_TYPE}-gcc" "${srctree}/scripts/package/install-extmod-build" "${pdir}/usr/src/linux-headers-${version}"
135
136 mkdir -p $pdir/lib/modules/$version/
137 ln -s /usr/src/linux-headers-$version $pdir/lib/modules/$version/build
138}
139
140install_libc_headers () {
141 pdir=debian/$1
142
143 $MAKE -f $srctree/Makefile headers_install INSTALL_HDR_PATH=$pdir/usr
144
145 # move asm headers to /usr/include/<libc-machine>/asm to match the structure
146 # used by Debian-based distros (to support multi-arch)
147 mkdir "$pdir/usr/include/${DEB_HOST_MULTIARCH}"
148 mv "$pdir/usr/include/asm" "$pdir/usr/include/${DEB_HOST_MULTIARCH}"
149}
150
151package=$1
152
153case "${package}" in
154*-dbg)
155 install_linux_image_dbg "${package}";;
156linux-image-*|user-mode-linux-*)
157 install_linux_image "${package}";;
158linux-libc-dev)
159 install_libc_headers "${package}";;
160linux-headers-*)
161 install_kernel_headers "${package}";;
162esac
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