xref: /linux/scripts/package/builddeb (revision 2c1ed907520c50326b8f604907a8478b27881a2e)
11da177e4SLinus Torvalds#!/bin/sh
21da177e4SLinus Torvalds#
34964451aSFrans Pop# builddeb 1.3
41da177e4SLinus Torvalds# Copyright 2003 Wichert Akkerman <wichert@wiggy.net>
51da177e4SLinus Torvalds#
61da177e4SLinus Torvalds# Simple script to generate a deb package for a Linux kernel. All the
74f66199bSFrans Pop# complexity of what to do with a kernel after it is installed or removed
81da177e4SLinus Torvalds# is left to other scripts and packages. Scripts can be placed into the
9fe233cb6SFrans Pop# preinst, postinst, prerm and postrm directories in /etc/kernel or
10fe233cb6SFrans Pop# /usr/share/kernel. A different list of search directories can be given
11fe233cb6SFrans Pop# via KDEB_HOOKDIR. Scripts in directories earlier in the list will
121da177e4SLinus Torvalds# override scripts of the same name in later directories.  The script will
13c0414419SMasahiro Yamada# be called on package installation and removal.
141da177e4SLinus Torvalds
15515f4c63SMasahiro Yamadaset -eu
166fb7ef5aSMasahiro Yamada
17515f4c63SMasahiro Yamadais_enabled() {
18515f4c63SMasahiro Yamada	grep -q "^$1=y" include/config/auto.conf
19515f4c63SMasahiro Yamada}
20515f4c63SMasahiro Yamada
21515f4c63SMasahiro Yamadaif_enabled_echo() {
22515f4c63SMasahiro Yamada	if is_enabled "$1"; then
23515f4c63SMasahiro Yamada		echo -n "$2"
24515f4c63SMasahiro Yamada	elif [ $# -ge 3 ]; then
25515f4c63SMasahiro Yamada		echo -n "$3"
26515f4c63SMasahiro Yamada	fi
27b611daaeSMasahiro Yamada}
286185d321SMasahiro Yamada
296185d321SMasahiro Yamadainstall_linux_image () {
30b611daaeSMasahiro Yamada	pname=$1
31b611daaeSMasahiro Yamada	pdir=debian/$1
32b611daaeSMasahiro Yamada
33b611daaeSMasahiro Yamada	# Only some architectures with OF support have this target
34b611daaeSMasahiro Yamada	if is_enabled CONFIG_OF_EARLY_FLATTREE && [ -d "${srctree}/arch/${SRCARCH}/boot/dts" ]; then
35b611daaeSMasahiro Yamada		${MAKE} -f ${srctree}/Makefile INSTALL_DTBS_PATH="${pdir}/usr/lib/linux-image-${KERNELRELEASE}" dtbs_install
3616c36f88SMasahiro Yamada	fi
37b611daaeSMasahiro Yamada
38b611daaeSMasahiro Yamada	${MAKE} -f ${srctree}/Makefile INSTALL_MOD_PATH="${pdir}" INSTALL_MOD_STRIP=1 modules_install
39b611daaeSMasahiro Yamada	rm -f "${pdir}/lib/modules/${KERNELRELEASE}/build"
40b611daaeSMasahiro Yamada
411240dabeSMasahiro Yamada	# Install the kernel
421240dabeSMasahiro Yamada	if [ "${ARCH}" = um ] ; then
43b611daaeSMasahiro Yamada		mkdir -p "${pdir}/usr/lib/uml/modules"
44b611daaeSMasahiro Yamada		mv "${pdir}/lib/modules/${KERNELRELEASE}" "${pdir}/usr/lib/uml/modules/${KERNELRELEASE}"
45b611daaeSMasahiro Yamada		mkdir -p "${pdir}/usr/bin" "${pdir}/usr/share/doc/${pname}"
46b611daaeSMasahiro Yamada		cp System.map "${pdir}/usr/lib/uml/modules/${KERNELRELEASE}/System.map"
47b611daaeSMasahiro Yamada		cp ${KCONFIG_CONFIG} "${pdir}/usr/share/doc/${pname}/config"
48b611daaeSMasahiro Yamada		gzip "${pdir}/usr/share/doc/${pname}/config"
49b611daaeSMasahiro Yamada	else
50b611daaeSMasahiro Yamada		mkdir -p "${pdir}/boot"
51b611daaeSMasahiro Yamada		cp System.map "${pdir}/boot/System.map-${KERNELRELEASE}"
52b611daaeSMasahiro Yamada		cp ${KCONFIG_CONFIG} "${pdir}/boot/config-${KERNELRELEASE}"
53b611daaeSMasahiro Yamada	fi
54b611daaeSMasahiro Yamada
55b611daaeSMasahiro Yamada	# Not all arches have the same installed path in debian
56b611daaeSMasahiro Yamada	# XXX: have each arch Makefile export a variable of the canonical image install
57b611daaeSMasahiro Yamada	# path instead
58b611daaeSMasahiro Yamada	case "${SRCARCH}" in
59b611daaeSMasahiro Yamada	um)
60b611daaeSMasahiro Yamada		installed_image_path="usr/bin/linux-${KERNELRELEASE}";;
61b611daaeSMasahiro Yamada	parisc|mips|powerpc)
62b611daaeSMasahiro Yamada		installed_image_path="boot/vmlinux-${KERNELRELEASE}";;
63b611daaeSMasahiro Yamada	*)
64b611daaeSMasahiro Yamada		installed_image_path="boot/vmlinuz-${KERNELRELEASE}";;
65b611daaeSMasahiro Yamada	esac
66*54956567SNicolas Schier	cp "$(${MAKE} -s -f ${srctree}/Makefile image_name)" "${pdir}/${installed_image_path}"
67*54956567SNicolas Schier
68*54956567SNicolas Schier	if [ "${ARCH}" != um ]; then
69*54956567SNicolas Schier		install_maint_scripts "${pdir}"
70*54956567SNicolas Schier	fi
71*54956567SNicolas Schier}
72b611daaeSMasahiro Yamada
73b611daaeSMasahiro Yamadainstall_maint_scripts () {
74b611daaeSMasahiro Yamada	# Install the maintainer scripts
75b611daaeSMasahiro Yamada	# Note: hook scripts under /etc/kernel are also executed by official Debian
76b611daaeSMasahiro Yamada	# kernel packages, as well as kernel packages built using make-kpkg.
77b611daaeSMasahiro Yamada	# make-kpkg sets $INITRD to indicate whether an initramfs is wanted, and
78b611daaeSMasahiro Yamada	# so do we; recent versions of dracut and initramfs-tools will obey this.
79b611daaeSMasahiro Yamada	debhookdir=${KDEB_HOOKDIR:-/etc/kernel /usr/share/kernel}
80b611daaeSMasahiro Yamada	for script in postinst postrm preinst prerm; do
81b611daaeSMasahiro Yamada		mkdir -p "${pdir}/DEBIAN"
82b611daaeSMasahiro Yamada		cat <<-EOF > "${pdir}/DEBIAN/${script}"
83b611daaeSMasahiro Yamada		#!/bin/sh
84b611daaeSMasahiro Yamada
85b611daaeSMasahiro Yamada		set -e
86b611daaeSMasahiro Yamada
87b611daaeSMasahiro Yamada		# Pass maintainer script parameters to hook scripts
88b611daaeSMasahiro Yamada		export DEB_MAINT_PARAMS="\$*"
89b611daaeSMasahiro Yamada
90b611daaeSMasahiro Yamada		# Tell initramfs builder whether it's wanted
91b611daaeSMasahiro Yamada		export INITRD=$(if_enabled_echo CONFIG_BLK_DEV_INITRD Yes No)
92b611daaeSMasahiro Yamada
93b611daaeSMasahiro Yamada		# run-parts will error out if one of its directory arguments does not
94b611daaeSMasahiro Yamada		# exist, so filter the list of hook directories accordingly.
95b611daaeSMasahiro Yamada		hookdirs=
96b611daaeSMasahiro Yamada		for dir in ${debhookdir}; do
97b611daaeSMasahiro Yamada			test -d "\$dir/${script}.d" || continue
98b611daaeSMasahiro Yamada			hookdirs="\$hookdirs \$dir/${script}.d"
99b611daaeSMasahiro Yamada		done
100b611daaeSMasahiro Yamada		hookdirs="\${hookdirs# }"
1016185d321SMasahiro Yamada		test -n "\$hookdirs" && run-parts --arg="${KERNELRELEASE}" --arg="/${installed_image_path}" \$hookdirs
102b611daaeSMasahiro Yamada		exit 0
10316c36f88SMasahiro Yamada		EOF
10416c36f88SMasahiro Yamada		chmod 755 "${pdir}/DEBIAN/${script}"
105bcbbf493SMatt Fleming	done
10616c36f88SMasahiro Yamada}
10716c36f88SMasahiro Yamada
10816c36f88SMasahiro Yamadainstall_linux_image_dbg () {
10916c36f88SMasahiro Yamada	pdir=debian/$1
11016c36f88SMasahiro Yamada
111b611daaeSMasahiro Yamada	# Parse modules.order directly because 'make modules_install' may sign,
11216c36f88SMasahiro Yamada	# compress modules, and then run unneeded depmod.
11316c36f88SMasahiro Yamada	if is_enabled CONFIG_MODULES; then
11416c36f88SMasahiro Yamada		while read -r mod; do
11516c36f88SMasahiro Yamada			mod="${mod%.o}.ko"
116bcbbf493SMatt Fleming			dbg="${pdir}/usr/lib/debug/lib/modules/${KERNELRELEASE}/kernel/${mod}"
117b611daaeSMasahiro Yamada			buildid=$("${READELF}" -n "${mod}" | sed -n 's@^.*Build ID: \(..\)\(.*\)@\1/\2@p')
118b611daaeSMasahiro Yamada			link="${pdir}/usr/lib/debug/.build-id/${buildid}.debug"
119b611daaeSMasahiro Yamada
120b611daaeSMasahiro Yamada			mkdir -p "${dbg%/*}" "${link%/*}"
121b611daaeSMasahiro Yamada			"${OBJCOPY}" --only-keep-debug "${mod}" "${dbg}"
122b611daaeSMasahiro Yamada			ln -sf --relative "${dbg}" "${link}"
123b611daaeSMasahiro Yamada		done < modules.order
124b611daaeSMasahiro Yamada	fi
125b611daaeSMasahiro Yamada
126b611daaeSMasahiro Yamada	# Build debug package
127b611daaeSMasahiro Yamada	# Different tools want the image in different locations
128b611daaeSMasahiro Yamada	# perf
129b611daaeSMasahiro Yamada	mkdir -p ${pdir}/usr/lib/debug/lib/modules/${KERNELRELEASE}/
13036862e14SMasahiro Yamada	cp vmlinux ${pdir}/usr/lib/debug/lib/modules/${KERNELRELEASE}/
1316185d321SMasahiro Yamada	# systemtap
1326185d321SMasahiro Yamada	mkdir -p ${pdir}/usr/lib/debug/boot/
1333126c17dSMasahiro Yamada	ln -s ../lib/modules/${KERNELRELEASE}/vmlinux ${pdir}/usr/lib/debug/boot/vmlinux-${KERNELRELEASE}
134e2c31822SMasahiro Yamada	# kdump-tools
1353126c17dSMasahiro Yamada	ln -s lib/modules/${KERNELRELEASE}/vmlinux ${pdir}/usr/lib/debug/vmlinux-${KERNELRELEASE}
1363126c17dSMasahiro Yamada}
1373126c17dSMasahiro Yamada
1383126c17dSMasahiro Yamadainstall_kernel_headers () {
1393126c17dSMasahiro Yamada	pdir=debian/$1
14036862e14SMasahiro Yamada	version=${1#linux-headers-}
1416185d321SMasahiro Yamada
142451dff37SMasahiro Yamada	CC="${DEB_HOST_GNU_TYPE}-gcc" "${srctree}/scripts/package/install-extmod-build" "${pdir}/usr/src/linux-headers-${version}"
143451dff37SMasahiro Yamada
144451dff37SMasahiro Yamada	mkdir -p $pdir/lib/modules/$version/
145451dff37SMasahiro Yamada	ln -s /usr/src/linux-headers-$version $pdir/lib/modules/$version/build
146451dff37SMasahiro Yamada}
147159956f3SMasahiro Yamada
148159956f3SMasahiro Yamadainstall_libc_headers () {
149451dff37SMasahiro Yamada	pdir=debian/$1
150451dff37SMasahiro Yamada
1511d7bae8fSMasahiro Yamada	$MAKE -f $srctree/Makefile headers_install INSTALL_HDR_PATH=$pdir/usr
1521da177e4SLinus Torvalds
1531d7bae8fSMasahiro Yamada	# move asm headers to /usr/include/<libc-machine>/asm to match the structure
15436862e14SMasahiro Yamada	# used by Debian-based distros (to support multi-arch)
1556185d321SMasahiro Yamada	mkdir "$pdir/usr/include/${DEB_HOST_MULTIARCH}"
15636862e14SMasahiro Yamada	mv "$pdir/usr/include/asm" "$pdir/usr/include/${DEB_HOST_MULTIARCH}"
1576185d321SMasahiro Yamada}
15836862e14SMasahiro Yamada
1596185d321SMasahiro Yamadapackage=$1
16036862e14SMasahiro Yamada
1616185d321SMasahiro Yamadacase "${package}" in
16236862e14SMasahiro Yamada*-dbg)
163	install_linux_image_dbg "${package}";;
164linux-image-*|user-mode-linux-*)
165	install_linux_image "${package}";;
166linux-libc-dev)
167	install_libc_headers "${package}";;
168linux-headers-*)
169	install_kernel_headers "${package}";;
170esac
171