1#!/bin/sh
2# SPDX-License-Identifier: GPL-2.0
3
4#
5# buildtar 0.0.5
6#
7# (C) 2004-2006 by Jan-Benedict Glaw <jbglaw@lug-owl.de>
8#
9# This script is used to compile a tarball from the currently
10# prepared kernel. Based upon the builddeb script from
11# Wichert Akkerman <wichert@wiggy.net>.
12#
13
14set -e
15
16#
17# Some variables and settings used throughout the script
18#
19tmpdir="${objtree}/tar-install"
20tarball="${objtree}/linux-${KERNELRELEASE}-${ARCH}.tar"
21
22
23#
24# Figure out how to compress, if requested at all
25#
26case "${1}" in
27	dir-pkg|tar-pkg)
28		opts=
29		;;
30	targz-pkg)
31		opts="-I ${KGZIP}"
32		tarball=${tarball}.gz
33		;;
34	tarbz2-pkg)
35		opts="-I ${KBZIP2}"
36		tarball=${tarball}.bz2
37		;;
38	tarxz-pkg)
39		opts="-I ${XZ}"
40		tarball=${tarball}.xz
41		;;
42	*)
43		echo "Unknown tarball target \"${1}\" requested, please add it to ${0}." >&2
44		exit 1
45		;;
46esac
47
48
49#
50# Clean-up and re-create the temporary directory
51#
52rm -rf -- "${tmpdir}"
53mkdir -p -- "${tmpdir}/boot"
54dirs=boot
55
56
57#
58# Try to install dtbs
59#
60if grep -q '^CONFIG_OF_EARLY_FLATTREE=y' include/config/auto.conf; then
61	# Only some architectures with OF support have this target
62	if [ -d "${srctree}/arch/${SRCARCH}/boot/dts" ]; then
63		$MAKE ARCH="${ARCH}" -f ${srctree}/Makefile INSTALL_DTBS_PATH="${tmpdir}/boot/dtbs/${KERNELRELEASE}" dtbs_install
64    fi
65fi
66
67
68#
69# Try to install modules
70#
71if grep -q '^CONFIG_MODULES=y' include/config/auto.conf; then
72	make ARCH="${ARCH}" -f ${srctree}/Makefile INSTALL_MOD_PATH="${tmpdir}" modules_install
73	dirs="$dirs lib"
74fi
75
76
77#
78# Install basic kernel files
79#
80cp -v -- "${objtree}/System.map" "${tmpdir}/boot/System.map-${KERNELRELEASE}"
81cp -v -- "${KCONFIG_CONFIG}" "${tmpdir}/boot/config-${KERNELRELEASE}"
82cp -v -- "${objtree}/vmlinux" "${tmpdir}/boot/vmlinux-${KERNELRELEASE}"
83
84
85#
86# Install arch-specific kernel image(s)
87#
88case "${ARCH}" in
89	x86|i386|x86_64)
90		[ -f "${objtree}/arch/x86/boot/bzImage" ] && cp -v -- "${objtree}/arch/x86/boot/bzImage" "${tmpdir}/boot/vmlinuz-${KERNELRELEASE}"
91		;;
92	alpha)
93		[ -f "${objtree}/arch/alpha/boot/vmlinux.gz" ] && cp -v -- "${objtree}/arch/alpha/boot/vmlinux.gz" "${tmpdir}/boot/vmlinuz-${KERNELRELEASE}"
94		;;
95	parisc*)
96		[ -f "${KBUILD_IMAGE}" ] && cp -v -- "${KBUILD_IMAGE}" "${tmpdir}/boot/vmlinux-${KERNELRELEASE}"
97		[ -f "${objtree}/lifimage" ] && cp -v -- "${objtree}/lifimage" "${tmpdir}/boot/lifimage-${KERNELRELEASE}"
98		;;
99	mips)
100		if [ -f "${objtree}/arch/mips/boot/compressed/vmlinux.bin" ]; then
101			cp -v -- "${objtree}/arch/mips/boot/compressed/vmlinux.bin" "${tmpdir}/boot/vmlinuz-${KERNELRELEASE}"
102		elif [ -f "${objtree}/arch/mips/boot/compressed/vmlinux.ecoff" ]; then
103			cp -v -- "${objtree}/arch/mips/boot/compressed/vmlinux.ecoff" "${tmpdir}/boot/vmlinuz-${KERNELRELEASE}"
104		elif [ -f "${objtree}/arch/mips/boot/compressed/vmlinux.srec" ]; then
105			cp -v -- "${objtree}/arch/mips/boot/compressed/vmlinux.srec" "${tmpdir}/boot/vmlinuz-${KERNELRELEASE}"
106		elif [ -f "${objtree}/vmlinux.32" ]; then
107			cp -v -- "${objtree}/vmlinux.32" "${tmpdir}/boot/vmlinux-${KERNELRELEASE}"
108		elif [ -f "${objtree}/vmlinux.64" ]; then
109			cp -v -- "${objtree}/vmlinux.64" "${tmpdir}/boot/vmlinux-${KERNELRELEASE}"
110		elif [ -f "${objtree}/arch/mips/boot/vmlinux.bin" ]; then
111			cp -v -- "${objtree}/arch/mips/boot/vmlinux.bin" "${tmpdir}/boot/vmlinux-${KERNELRELEASE}"
112		elif [ -f "${objtree}/arch/mips/boot/vmlinux.ecoff" ]; then
113			cp -v -- "${objtree}/arch/mips/boot/vmlinux.ecoff" "${tmpdir}/boot/vmlinux-${KERNELRELEASE}"
114		elif [ -f "${objtree}/arch/mips/boot/vmlinux.srec" ]; then
115			cp -v -- "${objtree}/arch/mips/boot/vmlinux.srec" "${tmpdir}/boot/vmlinux-${KERNELRELEASE}"
116		elif [ -f "${objtree}/vmlinux" ]; then
117			cp -v -- "${objtree}/vmlinux" "${tmpdir}/boot/vmlinux-${KERNELRELEASE}"
118		fi
119		;;
120	arm64)
121		for i in Image.bz2 Image.gz Image.lz4 Image.lzma Image.lzo ; do
122			if [ -f "${objtree}/arch/arm64/boot/${i}" ] ; then
123				cp -v -- "${objtree}/arch/arm64/boot/${i}" "${tmpdir}/boot/vmlinuz-${KERNELRELEASE}"
124				break
125			fi
126		done
127		;;
128	*)
129		[ -f "${KBUILD_IMAGE}" ] && cp -v -- "${KBUILD_IMAGE}" "${tmpdir}/boot/vmlinux-kbuild-${KERNELRELEASE}"
130		echo "" >&2
131		echo '** ** **  WARNING  ** ** **' >&2
132		echo "" >&2
133		echo "Your architecture did not define any architecture-dependent files" >&2
134		echo "to be placed into the tarball. Please add those to ${0} ..." >&2
135		echo "" >&2
136		sleep 5
137		;;
138esac
139
140if [ "${1}" = dir-pkg ]; then
141	echo "Kernel tree successfully created in $tmpdir"
142	exit 0
143fi
144
145#
146# Create the tarball
147#
148if tar --owner=root --group=root --help >/dev/null 2>&1; then
149	opts="$opts --owner=root --group=root"
150fi
151
152tar cf $tarball -C $tmpdir $opts $dirs
153
154echo "Tarball successfully created in $tarball"
155
156exit 0
157