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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
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 # Install the maintainer scripts
67 # Note: hook scripts under /etc/kernel are also executed by official Debian
68 # kernel packages, as well as kernel packages built using make-kpkg.
69 # make-kpkg sets $INITRD to indicate whether an initramfs is wanted, and
70 # so do we; recent versions of dracut and initramfs-tools will obey this.
71 debhookdir=${KDEB_HOOKDIR:-/etc/kernel}
72 for script in postinst postrm preinst prerm; do
73 mkdir -p "${pdir}${debhookdir}/${script}.d"
74
75 mkdir -p "${pdir}/DEBIAN"
76 cat <<-EOF > "${pdir}/DEBIAN/${script}"
77
78 #!/bin/sh
79
80 set -e
81
82 # Pass maintainer script parameters to hook scripts
83 export DEB_MAINT_PARAMS="\$*"
84
85 # Tell initramfs builder whether it's wanted
86 export INITRD=$(if_enabled_echo CONFIG_BLK_DEV_INITRD Yes No)
87
88 test -d ${debhookdir}/${script}.d && run-parts --arg="${KERNELRELEASE}" --arg="/${installed_image_path}" ${debhookdir}/${script}.d
89 exit 0
90 EOF
91 chmod 755 "${pdir}/DEBIAN/${script}"
92 done
93}
94
95install_linux_image_dbg () {
96 pdir=debian/$1
97
98 # Parse modules.order directly because 'make modules_install' may sign,
99 # compress modules, and then run unneeded depmod.
100 while read -r mod; do
101 mod="${mod%.o}.ko"
102 dbg="${pdir}/usr/lib/debug/lib/modules/${KERNELRELEASE}/kernel/${mod}"
103 buildid=$("${READELF}" -n "${mod}" | sed -n 's@^.*Build ID: \(..\)\(.*\)@\1/\2@p')
104 link="${pdir}/usr/lib/debug/.build-id/${buildid}.debug"
105
106 mkdir -p "${dbg%/*}" "${link%/*}"
107 "${OBJCOPY}" --only-keep-debug "${mod}" "${dbg}"
108 ln -sf --relative "${dbg}" "${link}"
109 done < modules.order
110
111 # Build debug package
112 # Different tools want the image in different locations
113 # perf
114 mkdir -p ${pdir}/usr/lib/debug/lib/modules/${KERNELRELEASE}/
115 cp vmlinux ${pdir}/usr/lib/debug/lib/modules/${KERNELRELEASE}/
116 # systemtap
117 mkdir -p ${pdir}/usr/lib/debug/boot/
118 ln -s ../lib/modules/${KERNELRELEASE}/vmlinux ${pdir}/usr/lib/debug/boot/vmlinux-${KERNELRELEASE}
119 # kdump-tools
120 ln -s lib/modules/${KERNELRELEASE}/vmlinux ${pdir}/usr/lib/debug/vmlinux-${KERNELRELEASE}
121}
122
123install_kernel_headers () {
124 pdir=debian/$1
125 version=${1#linux-headers-}
126
127 "${srctree}/scripts/package/install-extmod-build" "${pdir}/usr/src/linux-headers-${version}"
128
129 mkdir -p $pdir/lib/modules/$version/
130 ln -s /usr/src/linux-headers-$version $pdir/lib/modules/$version/build
131}
132
133install_libc_headers () {
134 pdir=debian/$1
135
136 $MAKE -f $srctree/Makefile headers_install INSTALL_HDR_PATH=$pdir/usr
137
138 # move asm headers to /usr/include/<libc-machine>/asm to match the structure
139 # used by Debian-based distros (to support multi-arch)
140 mkdir "$pdir/usr/include/${DEB_HOST_MULTIARCH}"
141 mv "$pdir/usr/include/asm" "$pdir/usr/include/${DEB_HOST_MULTIARCH}"
142}
143
144package=$1
145
146case "${package}" in
147*-dbg)
148 install_linux_image_dbg "${package}";;
149linux-image-*|user-mode-linux-*)
150 install_linux_image "${package}";;
151linux-libc-dev)
152 install_libc_headers "${package}";;
153linux-headers-*)
154 install_kernel_headers "${package}";;
155esac
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="$2"
17
18 mkdir -m 755 -p "$pdir/DEBIAN"
19 mkdir -p "$pdir/usr/share/doc/$pname"
20 cp debian/copyright "$pdir/usr/share/doc/$pname/"
21 cp debian/changelog "$pdir/usr/share/doc/$pname/changelog.Debian"
22 gzip -9 "$pdir/usr/share/doc/$pname/changelog.Debian"
23 sh -c "cd '$pdir'; find . -type f ! -path './DEBIAN/*' -printf '%P\0' \
24 | xargs -r0 md5sum > DEBIAN/md5sums"
25
26 # Fix ownership and permissions
27 chown -R root:root "$pdir"
28 chmod -R go-w "$pdir"
29 # in case we are in a restrictive umask environment like 0077
30 chmod -R a+rX "$pdir"
31
32 # Create the package
33 dpkg-gencontrol -p$pname -P"$pdir"
34 dpkg --build "$pdir" ..
35}
36
37version=$KERNELRELEASE
38tmpdir="$objtree/debian/tmp"
39kernel_headers_dir="$objtree/debian/hdrtmp"
40libc_headers_dir="$objtree/debian/headertmp"
41dbg_dir="$objtree/debian/dbgtmp"
42packagename=linux-image-$version
43kernel_headers_packagename=linux-headers-$version
44libc_headers_packagename=linux-libc-dev
45dbg_packagename=$packagename-dbg
46
47if [ "$ARCH" = "um" ] ; then
48 packagename=user-mode-linux-$version
49fi
50
51# Not all arches have the same installed path in debian
52# XXX: have each arch Makefile export a variable of the canonical image install
53# path instead
54case $ARCH in
55um)
56 installed_image_path="usr/bin/linux-$version"
57 ;;
58parisc|mips|powerpc)
59 installed_image_path="boot/vmlinux-$version"
60 ;;
61*)
62 installed_image_path="boot/vmlinuz-$version"
63esac
64
65BUILD_DEBUG="$(grep -s '^CONFIG_DEBUG_INFO=y' $KCONFIG_CONFIG || true)"
66
67# Setup the directory structure
68rm -rf "$tmpdir" "$kernel_headers_dir" "$libc_headers_dir" "$dbg_dir" $objtree/debian/files
69mkdir -m 755 -p "$tmpdir/DEBIAN"
70mkdir -p "$tmpdir/lib" "$tmpdir/boot"
71mkdir -p "$kernel_headers_dir/lib/modules/$version/"
72
73# Build and install the kernel
74if [ "$ARCH" = "um" ] ; then
75 mkdir -p "$tmpdir/usr/lib/uml/modules/$version" "$tmpdir/usr/bin" "$tmpdir/usr/share/doc/$packagename"
76 $MAKE linux
77 cp System.map "$tmpdir/usr/lib/uml/modules/$version/System.map"
78 cp $KCONFIG_CONFIG "$tmpdir/usr/share/doc/$packagename/config"
79 gzip "$tmpdir/usr/share/doc/$packagename/config"
80else
81 cp System.map "$tmpdir/boot/System.map-$version"
82 cp $KCONFIG_CONFIG "$tmpdir/boot/config-$version"
83fi
84cp "$($MAKE -s image_name)" "$tmpdir/$installed_image_path"
85
86if grep -q "^CONFIG_OF=y" $KCONFIG_CONFIG ; then
87 # Only some architectures with OF support have this target
88 if grep -q dtbs_install "${srctree}/arch/$SRCARCH/Makefile"; then
89 $MAKE KBUILD_SRC= INSTALL_DTBS_PATH="$tmpdir/usr/lib/$packagename" dtbs_install
90 fi
91fi
92
93if grep -q '^CONFIG_MODULES=y' $KCONFIG_CONFIG ; then
94 INSTALL_MOD_PATH="$tmpdir" $MAKE KBUILD_SRC= modules_install
95 rm -f "$tmpdir/lib/modules/$version/build"
96 rm -f "$tmpdir/lib/modules/$version/source"
97 if [ "$ARCH" = "um" ] ; then
98 mv "$tmpdir/lib/modules/$version"/* "$tmpdir/usr/lib/uml/modules/$version/"
99 rmdir "$tmpdir/lib/modules/$version"
100 fi
101 if [ -n "$BUILD_DEBUG" ] ; then
102 for module in $(find $tmpdir/lib/modules/ -name *.ko -printf '%P\n'); do
103 module=lib/modules/$module
104 mkdir -p $(dirname $dbg_dir/usr/lib/debug/$module)
105 # only keep debug symbols in the debug file
106 $OBJCOPY --only-keep-debug $tmpdir/$module $dbg_dir/usr/lib/debug/$module
107 # strip original module from debug symbols
108 $OBJCOPY --strip-debug $tmpdir/$module
109 # then add a link to those
110 $OBJCOPY --add-gnu-debuglink=$dbg_dir/usr/lib/debug/$module $tmpdir/$module
111 done
112
113 # resign stripped modules
114 MODULE_SIG_ALL="$(grep -s '^CONFIG_MODULE_SIG_ALL=y' $KCONFIG_CONFIG || true)"
115 if [ -n "$MODULE_SIG_ALL" ]; then
116 INSTALL_MOD_PATH="$tmpdir" $MAKE KBUILD_SRC= modules_sign
117 fi
118 fi
119fi
120
121if [ "$ARCH" != "um" ]; then
122 $MAKE headers_check KBUILD_SRC=
123 $MAKE headers_install KBUILD_SRC= INSTALL_HDR_PATH="$libc_headers_dir/usr"
124fi
125
126# Install the maintainer scripts
127# Note: hook scripts under /etc/kernel are also executed by official Debian
128# kernel packages, as well as kernel packages built using make-kpkg.
129# make-kpkg sets $INITRD to indicate whether an initramfs is wanted, and
130# so do we; recent versions of dracut and initramfs-tools will obey this.
131debhookdir=${KDEB_HOOKDIR:-/etc/kernel}
132if grep -q '^CONFIG_BLK_DEV_INITRD=y' $KCONFIG_CONFIG; then
133 want_initrd=Yes
134else
135 want_initrd=No
136fi
137for script in postinst postrm preinst prerm ; do
138 mkdir -p "$tmpdir$debhookdir/$script.d"
139 cat <<EOF > "$tmpdir/DEBIAN/$script"
140#!/bin/sh
141
142set -e
143
144# Pass maintainer script parameters to hook scripts
145export DEB_MAINT_PARAMS="\$*"
146
147# Tell initramfs builder whether it's wanted
148export INITRD=$want_initrd
149
150test -d $debhookdir/$script.d && run-parts --arg="$version" --arg="/$installed_image_path" $debhookdir/$script.d
151exit 0
152EOF
153 chmod 755 "$tmpdir/DEBIAN/$script"
154done
155
156# Build kernel header package
157(cd $srctree; find . -name Makefile\* -o -name Kconfig\* -o -name \*.pl) > "$objtree/debian/hdrsrcfiles"
158(cd $srctree; find arch/*/include include scripts -type f -o -type l) >> "$objtree/debian/hdrsrcfiles"
159(cd $srctree; find arch/$SRCARCH -name module.lds -o -name Kbuild.platforms -o -name Platform) >> "$objtree/debian/hdrsrcfiles"
160(cd $srctree; find $(find arch/$SRCARCH -name include -o -name scripts -type d) -type f) >> "$objtree/debian/hdrsrcfiles"
161if grep -q '^CONFIG_STACK_VALIDATION=y' $KCONFIG_CONFIG ; then
162 (cd $objtree; find tools/objtool -type f -executable) >> "$objtree/debian/hdrobjfiles"
163fi
164(cd $objtree; find arch/$SRCARCH/include Module.symvers include scripts -type f) >> "$objtree/debian/hdrobjfiles"
165if grep -q '^CONFIG_GCC_PLUGINS=y' $KCONFIG_CONFIG ; then
166 (cd $objtree; find scripts/gcc-plugins -name \*.so -o -name gcc-common.h) >> "$objtree/debian/hdrobjfiles"
167fi
168destdir=$kernel_headers_dir/usr/src/linux-headers-$version
169mkdir -p "$destdir"
170(cd $srctree; tar -c -f - -T -) < "$objtree/debian/hdrsrcfiles" | (cd $destdir; tar -xf -)
171(cd $objtree; tar -c -f - -T -) < "$objtree/debian/hdrobjfiles" | (cd $destdir; tar -xf -)
172(cd $objtree; cp $KCONFIG_CONFIG $destdir/.config) # copy .config manually to be where it's expected to be
173ln -sf "/usr/src/linux-headers-$version" "$kernel_headers_dir/lib/modules/$version/build"
174rm -f "$objtree/debian/hdrsrcfiles" "$objtree/debian/hdrobjfiles"
175
176if [ "$ARCH" != "um" ]; then
177 create_package "$kernel_headers_packagename" "$kernel_headers_dir"
178 create_package "$libc_headers_packagename" "$libc_headers_dir"
179fi
180
181create_package "$packagename" "$tmpdir"
182
183if [ -n "$BUILD_DEBUG" ] ; then
184 # Build debug package
185 # Different tools want the image in different locations
186 # perf
187 mkdir -p $dbg_dir/usr/lib/debug/lib/modules/$version/
188 cp vmlinux $dbg_dir/usr/lib/debug/lib/modules/$version/
189 # systemtap
190 mkdir -p $dbg_dir/usr/lib/debug/boot/
191 ln -s ../lib/modules/$version/vmlinux $dbg_dir/usr/lib/debug/boot/vmlinux-$version
192 # kdump-tools
193 ln -s lib/modules/$version/vmlinux $dbg_dir/usr/lib/debug/vmlinux-$version
194 create_package "$dbg_packagename" "$dbg_dir"
195fi
196
197exit 0