xref: /linux/scripts/package/PKGBUILD (revision 2c1ed907520c50326b8f604907a8478b27881a2e) 
1# SPDX-License-Identifier: GPL-2.0-only
2# Maintainer: Thomas Weißschuh <linux@weissschuh.net>
3# Contributor: Jan Alexander Steffens (heftig) <heftig@archlinux.org>
4
5pkgbase=${PACMAN_PKGBASE:-linux-upstream}
6pkgname=("${pkgbase}")
7
8_extrapackages=${PACMAN_EXTRAPACKAGES-headers api-headers debug}
9for pkg in $_extrapackages; do
10	pkgname+=("${pkgbase}-${pkg}")
11done
12
13pkgver="${KERNELRELEASE//-/_}"
14# The PKGBUILD is evaluated multiple times.
15# Running scripts/build-version from here would introduce inconsistencies.
16pkgrel="${KBUILD_REVISION}"
17pkgdesc='Upstream Linux'
18url='https://www.kernel.org/'
19# Enable flexible cross-compilation
20arch=(${CARCH})
21license=(GPL-2.0-only)
22makedepends=(
23	bc
24	bison
25	flex
26	gettext
27	kmod
28	libelf
29	openssl
30	pahole
31	perl
32	python
33	rsync
34	tar
35)
36options=(!debug !strip !buildflags !makeflags)
37
38_prologue() {
39	# MAKEFLAGS from makepkg.conf override the ones inherited from kbuild.
40	# Bypass this override with a custom variable.
41	export MAKEFLAGS="${KBUILD_MAKEFLAGS}"
42
43	# Kbuild works in the output directory, where this PKGBUILD is located.
44	cd "$(dirname "${BASH_SOURCE[0]}")"
45}
46
47build() {
48	_prologue
49
50	${MAKE} KERNELRELEASE="${KERNELRELEASE}" KBUILD_BUILD_VERSION="${pkgrel}"
51}
52
53_package() {
54	pkgdesc="The ${pkgdesc} kernel and modules"
55
56	local modulesdir="${pkgdir}/usr/${MODLIB}"
57
58	_prologue
59
60	echo "Installing boot image..."
61	# systemd expects to find the kernel here to allow hibernation
62	# https://github.com/systemd/systemd/commit/edda44605f06a41fb86b7ab8128dcf99161d2344
63	install -Dm644 "$(${MAKE} -s image_name)" "${modulesdir}/vmlinuz"
64
65	# Used by mkinitcpio to name the kernel
66	echo "${pkgbase}" > "${modulesdir}/pkgbase"
67
68	echo "Installing modules..."
69	${MAKE} INSTALL_MOD_PATH="${pkgdir}/usr" INSTALL_MOD_STRIP=1 \
70		DEPMOD=true modules_install
71
72	if [ -d "${srctree}/arch/${SRCARCH}/boot/dts" ]; then
73		echo "Installing dtbs..."
74		${MAKE} INSTALL_DTBS_PATH="${modulesdir}/dtb" dtbs_install
75	fi
76
77	# remove build link, will be part of -headers package
78	rm -f "${modulesdir}/build"
79}
80
81_package-headers() {
82	pkgdesc="Headers and scripts for building modules for the ${pkgdesc} kernel"
83
84	local builddir="${pkgdir}/usr/${MODLIB}/build"
85
86	_prologue
87
88	if grep -q CONFIG_MODULES=y include/config/auto.conf; then
89		echo "Installing build files..."
90		"${srctree}/scripts/package/install-extmod-build" "${builddir}"
91	fi
92
93	echo "Installing System.map and config..."
94	mkdir -p "${builddir}"
95	cp System.map "${builddir}/System.map"
96	cp .config "${builddir}/.config"
97
98	echo "Adding symlink..."
99	mkdir -p "${pkgdir}/usr/src"
100	ln -sr "${builddir}" "${pkgdir}/usr/src/${pkgbase}"
101}
102
103_package-api-headers() {
104	pkgdesc="Kernel headers sanitized for use in userspace"
105	provides=(linux-api-headers="${pkgver}")
106	conflicts=(linux-api-headers)
107
108	_prologue
109
110	${MAKE} headers_install INSTALL_HDR_PATH="${pkgdir}/usr"
111}
112
113_package-debug(){
114	pkgdesc="Non-stripped vmlinux file for the ${pkgdesc} kernel"
115
116	local debugdir="${pkgdir}/usr/src/debug/${pkgbase}"
117	local builddir="${pkgdir}/usr/${MODLIB}/build"
118
119	_prologue
120
121	install -Dt "${debugdir}" -m644 vmlinux
122	mkdir -p "${builddir}"
123	ln -sr "${debugdir}/vmlinux" "${builddir}/vmlinux"
124}
125
126for _p in "${pkgname[@]}"; do
127	eval "package_$_p() {
128		$(declare -f "_package${_p#$pkgbase}")
129		_package${_p#$pkgbase}
130	}"
131done
132