summaryrefslogtreecommitdiff
blob: 5bdada88d281a0a5ff336f2faf416794ce1cc900 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
# Copyright 2020-2022 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=7

inherit kernel-install toolchain-funcs

MY_P=linux-${PV%.*}
GENPATCHES_P=genpatches-${PV%.*}-$(( ${PV##*.} + 4 ))
BINPKG=${P/-bin/}-1

DESCRIPTION="Pre-built Linux kernel with genpatches"
HOMEPAGE="https://www.kernel.org/"
SRC_URI+="
	https://cdn.kernel.org/pub/linux/kernel/v$(ver_cut 1).x/${MY_P}.tar.xz
	https://dev.gentoo.org/~mpagano/dist/genpatches/${GENPATCHES_P}.base.tar.xz
	https://dev.gentoo.org/~mpagano/dist/genpatches/${GENPATCHES_P}.extras.tar.xz
	amd64? (
		https://dev.gentoo.org/~mgorny/binpkg/amd64/kernel/sys-kernel/gentoo-kernel/${BINPKG}.xpak
			-> ${BINPKG}.amd64.xpak
	)
	arm64? (
		https://dev.gentoo.org/~mgorny/binpkg/arm64/kernel/sys-kernel/gentoo-kernel/${BINPKG}.xpak
			-> ${BINPKG}.arm64.xpak
	)
	ppc64? (
		https://dev.gentoo.org/~mgorny/binpkg/ppc64le/kernel/sys-kernel/gentoo-kernel/${BINPKG}.xpak
			-> ${BINPKG}.ppc64le.xpak
	)
	x86? (
		https://dev.gentoo.org/~mgorny/binpkg/x86/kernel/sys-kernel/gentoo-kernel/${BINPKG}.xpak
			-> ${BINPKG}.x86.xpak
	)"
S=${WORKDIR}

LICENSE="GPL-2"
KEYWORDS="~amd64 ~arm64 ~ppc64 ~x86"

RDEPEND="
	!sys-kernel/gentoo-kernel:${SLOT}"
PDEPEND="
	>=virtual/dist-kernel-${PV}"
BDEPEND="
	sys-devel/bc
	sys-devel/flex
	virtual/libelf
	virtual/yacc"

QA_PREBUILT='*'

KV_LOCALVERSION='-gentoo-dist'
KPV=${PV}${KV_LOCALVERSION}

src_unpack() {
	default
	# ARCH=ppc64, but tarball is ppc64le. Update if we ever introduce ppc64be binpkg.
	ebegin "Unpacking ${BINPKG}.${ARCH/%ppc64/ppc64le}.xpak"
	tar -x < <(xz -c -d --single-stream "${DISTDIR}/${BINPKG}.${ARCH/%ppc64/ppc64le}.xpak")
	eend ${?} || die "Unpacking ${BINPKG} failed"
}

src_prepare() {
	local PATCHES=(
		# meh, genpatches have no directory
		"${WORKDIR}"/*.patch
	)
	cd "${MY_P}" || die
	default
}

src_configure() {
	# force ld.bfd if we can find it easily
	local LD="$(tc-getLD)"
	if type -P "${LD}.bfd" &>/dev/null; then
		LD+=.bfd
	fi

	tc-export_build_env
	local makeargs=(
		V=1

		HOSTCC="$(tc-getBUILD_CC)"
		HOSTCXX="$(tc-getBUILD_CXX)"
		HOSTCFLAGS="${BUILD_CFLAGS}"
		HOSTLDFLAGS="${BUILD_LDFLAGS}"

		CROSS_COMPILE=${CHOST}-
		AS="$(tc-getAS)"
		CC="$(tc-getCC)"
		LD="${LD}"
		AR="$(tc-getAR)"
		NM="$(tc-getNM)"
		STRIP=":"
		OBJCOPY="$(tc-getOBJCOPY)"
		OBJDUMP="$(tc-getOBJDUMP)"

		# we need to pass it to override colliding Gentoo envvar
		ARCH=$(tc-arch-kernel)

		O="${WORKDIR}"/modprep
	)

	mkdir modprep || die
	cp "usr/src/linux-${KPV}/.config" modprep/ || die
	emake -C "${MY_P}" "${makeargs[@]}" modules_prepare
}

src_test() {
	kernel-install_test "${KPV}" \
		"${WORKDIR}/usr/src/linux-${KPV}/$(dist-kernel_get_image_path)" \
		"lib/modules/${KPV}"
}

src_install() {
	mv lib usr "${ED}"/ || die

	# FIXME: requires proper mount-boot
	if [[ -d boot/dtbs ]]; then
		mv boot "${ED}"/ || die
	fi

	# strip out-of-source build stuffs from modprep
	# and then copy built files
	find modprep -type f '(' \
			-name Makefile -o \
			-name '*.[ao]' -o \
			'(' -name '.*' -a -not -name '.config' ')' \
		')' -delete || die
	rm modprep/source || die
	cp -p -R modprep/. "${ED}/usr/src/linux-${KPV}"/ || die
}