blob: 13137f8c863c83910e40606db696d8518850ce20 (
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
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
|
# Copyright 2020-2023 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
# @ECLASS: dist-kernel-utils.eclass
# @MAINTAINER:
# Distribution Kernel Project <dist-kernel@gentoo.org>
# @AUTHOR:
# Michał Górny <mgorny@gentoo.org>
# @SUPPORTED_EAPIS: 7 8
# @BLURB: Utility functions related to Distribution Kernels
# @DESCRIPTION:
# This eclass provides various utility functions related to Distribution
# Kernels.
# @ECLASS_VARIABLE: KERNEL_EFI_ZBOOT
# @DEFAULT_UNSET
# @DESCRIPTION:
# If set to a non-null value, it is assumed the kernel was built with
# CONFIG_EFI_ZBOOT enabled. This effects the name of the kernel image on
# arm64 and riscv. Mainly useful for sys-kernel/gentoo-kernel-bin.
if [[ ! ${_DIST_KERNEL_UTILS} ]]; then
case ${EAPI} in
7|8) ;;
*) die "${ECLASS}: EAPI ${EAPI:-0} not supported" ;;
esac
inherit toolchain-funcs
# @FUNCTION: dist-kernel_get_image_path
# @DESCRIPTION:
# Get relative kernel image path specific to the current ${ARCH}.
dist-kernel_get_image_path() {
case ${ARCH} in
amd64|x86)
echo arch/x86/boot/bzImage
;;
arm64|riscv)
if [[ ${KERNEL_EFI_ZBOOT} ]]; then
echo arch/${ARCH}/boot/vmlinuz.efi
else
echo arch/${ARCH}/boot/Image.gz
fi
;;
loong)
if [[ ${KERNEL_EFI_ZBOOT} ]]; then
echo arch/loongarch/boot/vmlinuz.efi
else
echo arch/loongarch/boot/vmlinux.elf
fi
;;
arm)
echo arch/arm/boot/zImage
;;
hppa|ppc|ppc64|sparc)
# https://www.kernel.org/doc/html/latest/powerpc/bootwrapper.html
# ./ is required because of ${image_path%/*}
# substitutions in the code
echo ./vmlinux
;;
*)
die "${FUNCNAME}: unsupported ARCH=${ARCH}"
;;
esac
}
# @FUNCTION: dist-kernel_install_kernel
# @USAGE: <version> <image> <system.map>
# @DESCRIPTION:
# Install kernel using installkernel tool. <version> specifies
# the kernel version, <image> full path to the image, <system.map>
# full path to System.map.
dist-kernel_install_kernel() {
debug-print-function ${FUNCNAME} "${@}"
[[ ${#} -eq 3 ]] || die "${FUNCNAME}: invalid arguments"
local version=${1}
local image=${2}
local map=${3}
ebegin "Installing the kernel via installkernel"
# note: .config is taken relatively to System.map;
# initrd relatively to bzImage
ARCH=$(tc-arch-kernel) installkernel "${version}" "${image}" "${map}"
eend ${?} || die -n "Installing the kernel failed"
}
# @FUNCTION: dist-kernel_reinstall_initramfs
# @USAGE: <kv-dir> <kv-full>
# @DESCRIPTION:
# Rebuild and install initramfs for the specified dist-kernel.
# <kv-dir> is the kernel source directory (${KV_DIR} from linux-info),
# while <kv-full> is the full kernel version (${KV_FULL}).
# The function will determine whether <kernel-dir> is actually
# a dist-kernel, and whether initramfs was used.
#
# This function is to be used in pkg_postinst() of ebuilds installing
# kernel modules that are included in the initramfs.
dist-kernel_reinstall_initramfs() {
debug-print-function ${FUNCNAME} "${@}"
[[ ${#} -eq 2 ]] || die "${FUNCNAME}: invalid arguments"
local kernel_dir=${1}
local ver=${2}
local image_path=${kernel_dir}/$(dist-kernel_get_image_path)
if [[ ! -f ${image_path} ]]; then
eerror "Kernel install missing, image not found:"
eerror " ${image_path}"
eerror "Initramfs will not be updated. Please reinstall your kernel."
return
fi
dist-kernel_install_kernel "${ver}" "${image_path}" \
"${kernel_dir}/System.map"
}
# @FUNCTION: dist-kernel_PV_to_KV
# @USAGE: <pv>
# @DESCRIPTION:
# Convert a Gentoo-style ebuild version to kernel "x.y.z[-rcN]" version.
dist-kernel_PV_to_KV() {
debug-print-function ${FUNCNAME} "${@}"
[[ ${#} -ne 1 ]] && die "${FUNCNAME}: invalid arguments"
local pv=${1}
local kv=${pv%%_*}
[[ -z $(ver_cut 3- "${kv}") ]] && kv+=".0"
[[ ${pv} == *_* ]] && kv+=-${pv#*_}
echo "${kv}"
}
# @FUNCTION: dist-kernel_compressed_module_cleanup
# @USAGE: <path>
# @DESCRIPTION:
# Traverse path for duplicate (un)compressed modules and remove all
# but the newest variant.
dist-kernel_compressed_module_cleanup() {
debug-print-function ${FUNCNAME} "${@}"
[[ ${#} -ne 1 ]] && die "${FUNCNAME}: invalid arguments"
local path=${1}
local basename f
while read -r basename; do
local prev=
for f in "${path}/${basename}"{,.gz,.xz,.zst}; do
if [[ ! -e ${f} ]]; then
continue
elif [[ -z ${prev} ]]; then
prev=${f}
elif [[ ${f} -nt ${prev} ]]; then
rm -v "${prev}" || die
prev=${f}
else
rm -v "${f}" || die
fi
done
done < <(
cd "${path}" &&
find -type f \
\( -name '*.ko' \
-o -name '*.ko.gz' \
-o -name '*.ko.xz' \
-o -name '*.ko.zst' \
\) | sed -e 's:[.]\(gz\|xz\|zst\)$::' | sort | uniq -d || die
)
}
_DIST_KERNEL_UTILS=1
fi
|
GitWeb