xref: /linux/scripts/package/mkspec (revision 6d6b8b0e28c468263d7fcb071e5cb284ae343df2)
1#!/bin/sh
2#
3#	Output a simple RPM spec file.
4#	This version assumes a minimum of RPM 4.13
5#
6#	The only gothic bit here is redefining install_post to avoid
7#	stripping the symbols from files in the kernel which we want
8#
9#	Patched for non-x86 by Opencon (L) 2002 <opencon@rio.skydome.net>
10#
11
12set -eu
13
14output=$1
15
16mkdir -p "$(dirname "${output}")"
17
18exec >"${output}"
19
20if grep -q CONFIG_MODULES=y include/config/auto.conf; then
21echo '%define with_devel %{?_without_devel: 0} %{?!_without_devel: 1}'
22else
23echo '%define with_devel 0'
24fi
25
26# manually generate -debuginfo package
27with_debuginfo_manual=0
28# debuginfo package generation uses find-debuginfo.sh under the hood,
29# which only works on uncompressed modules that contain debuginfo
30if grep -q CONFIG_DEBUG_INFO=y include/config/auto.conf &&
31   (! grep -q CONFIG_MODULE_COMPRESS=y include/config/auto.conf) &&
32   (! grep -q CONFIG_DEBUG_INFO_SPLIT=y include/config/auto.conf); then
33	# If module signing is enabled (which may be required to boot with
34	# lockdown enabled), the find-debuginfo.sh machinery cannot be used
35	# because the signatures will be stripped off the modules. However, due
36	# to an rpm bug in versions prior to 4.20.0
37	#
38	#     https://github.com/rpm-software-management/rpm/issues/3057
39	#     https://github.com/rpm-software-management/rpm/commit/49f906998f3cf1f4152162ca61ac0869251c380f
40	#
41	# We cannot provide our own debuginfo package because it does not listen
42	# to our custom files list, failing the build due to unpackaged files.
43	# Manually generate the debug info package if using rpm 4.20.0. If not
44	# using rpm 4.20.0, avoid generating a -debuginfo package altogether,
45	# as it is not safe.
46	if grep -q CONFIG_MODULE_SIG=y include/config/auto.conf; then
47		rpm_ver_str=$(rpm --version 2>/dev/null)
48		# Split the version on spaces
49		IFS=' '
50		set -- $rpm_ver_str
51		if [ "${1:-}" = RPM -a "${2:-}" = version ]; then
52			IFS=.
53			set -- $3
54			rpm_ver=$(( 1000000 * $1 + 10000 * $2 + 100 * $3 + ${4:-0} ))
55			if [ "$rpm_ver" -ge 4200000 ]; then
56				with_debuginfo_manual='%{?_without_debuginfo:0}%{?!_without_debuginfo:1}'
57			fi
58		fi
59	fi
60fi
61echo "%define with_debuginfo_manual $with_debuginfo_manual"
62
63cat<<EOF
64%define ARCH ${ARCH}
65%define KERNELRELEASE ${KERNELRELEASE}
66%define pkg_release $("${srctree}/scripts/build-version")
67EOF
68
69cat "${srctree}/scripts/package/kernel.spec"
70
71# collect the user's name and email address for the changelog entry
72if [ "$(command -v git)" ]; then
73	name=$(git config user.name) || true
74	email=$(git config user.email) || true
75fi
76
77if [ ! "${name:+set}" ]; then
78	name=${KBUILD_BUILD_USER:-$(id -nu)}
79fi
80
81if [ ! "${email:+set}" ]; then
82	buildhost=${KBUILD_BUILD_HOST:-$(hostname -f 2>/dev/null || hostname)}
83	builduser=${KBUILD_BUILD_USER:-$(id -nu)}
84	email="${builduser}@${buildhost}"
85fi
86
87cat << EOF
88
89%changelog
90* $(LC_ALL=C date +'%a %b %d %Y') ${name} <${email}>
91- Custom built Linux kernel.
92EOF
93