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	tarzst-pkg)
43		opts="-I ${ZSTD}"
44		tarball=${tarball}.zst
45		;;
46	*)
47		echo "Unknown tarball target \"${1}\" requested, please add it to ${0}." >&2
48		exit 1
49		;;
50esac
51
52
53#
54# Clean-up and re-create the temporary directory
55#
56rm -rf -- "${tmpdir}"
57mkdir -p -- "${tmpdir}/boot"
58dirs=boot
59
60
61#
62# Try to install dtbs
63#
64if grep -q '^CONFIG_OF_EARLY_FLATTREE=y' include/config/auto.conf; then
65	# Only some architectures with OF support have this target
66	if [ -d "${srctree}/arch/${SRCARCH}/boot/dts" ]; then
67		$MAKE ARCH="${ARCH}" -f ${srctree}/Makefile INSTALL_DTBS_PATH="${tmpdir}/boot/dtbs/${KERNELRELEASE}" dtbs_install
68    fi
69fi
70
71
72#
73# Try to install modules
74#
75if grep -q '^CONFIG_MODULES=y' include/config/auto.conf; then
76	make ARCH="${ARCH}" -f ${srctree}/Makefile INSTALL_MOD_PATH="${tmpdir}" modules_install
77	dirs="$dirs lib"
78fi
79
80
81#
82# Install basic kernel files
83#
84cp -v -- "${objtree}/System.map" "${tmpdir}/boot/System.map-${KERNELRELEASE}"
85cp -v -- "${KCONFIG_CONFIG}" "${tmpdir}/boot/config-${KERNELRELEASE}"
86cp -v -- "${objtree}/vmlinux" "${tmpdir}/boot/vmlinux-${KERNELRELEASE}"
87
88
89#
90# Install arch-specific kernel image(s)
91#
92case "${ARCH}" in
93	x86|i386|x86_64)
94		[ -f "${objtree}/arch/x86/boot/bzImage" ] && cp -v -- "${objtree}/arch/x86/boot/bzImage" "${tmpdir}/boot/vmlinuz-${KERNELRELEASE}"
95		;;
96	alpha)
97		[ -f "${objtree}/arch/alpha/boot/vmlinux.gz" ] && cp -v -- "${objtree}/arch/alpha/boot/vmlinux.gz" "${tmpdir}/boot/vmlinuz-${KERNELRELEASE}"
98		;;
99	parisc*)
100		[ -f "${KBUILD_IMAGE}" ] && cp -v -- "${KBUILD_IMAGE}" "${tmpdir}/boot/vmlinux-${KERNELRELEASE}"
101		[ -f "${objtree}/lifimage" ] && cp -v -- "${objtree}/lifimage" "${tmpdir}/boot/lifimage-${KERNELRELEASE}"
102		;;
103	mips)
104		if [ -f "${objtree}/arch/mips/boot/compressed/vmlinux.bin" ]; then
105			cp -v -- "${objtree}/arch/mips/boot/compressed/vmlinux.bin" "${tmpdir}/boot/vmlinuz-${KERNELRELEASE}"
106		elif [ -f "${objtree}/arch/mips/boot/compressed/vmlinux.ecoff" ]; then
107			cp -v -- "${objtree}/arch/mips/boot/compressed/vmlinux.ecoff" "${tmpdir}/boot/vmlinuz-${KERNELRELEASE}"
108		elif [ -f "${objtree}/arch/mips/boot/compressed/vmlinux.srec" ]; then
109			cp -v -- "${objtree}/arch/mips/boot/compressed/vmlinux.srec" "${tmpdir}/boot/vmlinuz-${KERNELRELEASE}"
110		elif [ -f "${objtree}/vmlinux.32" ]; then
111			cp -v -- "${objtree}/vmlinux.32" "${tmpdir}/boot/vmlinux-${KERNELRELEASE}"
112		elif [ -f "${objtree}/vmlinux.64" ]; then
113			cp -v -- "${objtree}/vmlinux.64" "${tmpdir}/boot/vmlinux-${KERNELRELEASE}"
114		elif [ -f "${objtree}/arch/mips/boot/vmlinux.bin" ]; then
115			cp -v -- "${objtree}/arch/mips/boot/vmlinux.bin" "${tmpdir}/boot/vmlinux-${KERNELRELEASE}"
116		elif [ -f "${objtree}/arch/mips/boot/vmlinux.ecoff" ]; then
117			cp -v -- "${objtree}/arch/mips/boot/vmlinux.ecoff" "${tmpdir}/boot/vmlinux-${KERNELRELEASE}"
118		elif [ -f "${objtree}/arch/mips/boot/vmlinux.srec" ]; then
119			cp -v -- "${objtree}/arch/mips/boot/vmlinux.srec" "${tmpdir}/boot/vmlinux-${KERNELRELEASE}"
120		elif [ -f "${objtree}/vmlinux" ]; then
121			cp -v -- "${objtree}/vmlinux" "${tmpdir}/boot/vmlinux-${KERNELRELEASE}"
122		fi
123		;;
124	arm64)
125		for i in Image.bz2 Image.gz Image.lz4 Image.lzma Image.lzo ; do
126			if [ -f "${objtree}/arch/arm64/boot/${i}" ] ; then
127				cp -v -- "${objtree}/arch/arm64/boot/${i}" "${tmpdir}/boot/vmlinuz-${KERNELRELEASE}"
128				break
129			fi
130		done
131		;;
132	riscv)
133		for i in Image.bz2 Image.gz Image; do
134			if [ -f "${objtree}/arch/riscv/boot/${i}" ] ; then
135				cp -v -- "${objtree}/arch/riscv/boot/${i}" "${tmpdir}/boot/vmlinux-${KERNELRELEASE}"
136				break
137			fi
138		done
139		;;
140	*)
141		[ -f "${KBUILD_IMAGE}" ] && cp -v -- "${KBUILD_IMAGE}" "${tmpdir}/boot/vmlinux-kbuild-${KERNELRELEASE}"
142		echo "" >&2
143		echo '** ** **  WARNING  ** ** **' >&2
144		echo "" >&2
145		echo "Your architecture did not define any architecture-dependent files" >&2
146		echo "to be placed into the tarball. Please add those to ${0} ..." >&2
147		echo "" >&2
148		sleep 5
149		;;
150esac
151
152if [ "${1}" = dir-pkg ]; then
153	echo "Kernel tree successfully created in $tmpdir"
154	exit 0
155fi
156
157#
158# Create the tarball
159#
160if tar --owner=root --group=root --help >/dev/null 2>&1; then
161	opts="$opts --owner=root --group=root"
162fi
163
164tar cf $tarball -C $tmpdir $opts $dirs
165
166echo "Tarball successfully created in $tarball"
167
168exit 0
169