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modified post 215770fac3 by Anonymous on Tue 22nd Mar 2022 14:33
original post d3f422 by Anonymous on Tue 22nd Mar 2022 09:13
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#!/usr/bin/ksh93

1	1		#!/usr/bin/ksh93
2	2
3	3		#
4	4		# Build Debian RT kernel from source,
5	5		# and retain the kernel build including source and *.o
6	6		# files so we can build custom kernel modules from
7	7		# that
8	8		#
9	9
10	10		compound bconfig=(
11	11		# config
12	12		typeset kernel_maj_min='5.10'
13	13		typeset igb_avb_src_gitbundle='/home/test001/work/dev_current/dev026/elbe/igb_avb/rovema_igb_avb_git20220302_001.bundle'
14	14		typeset simatic_src_gitbundle='/home/test001/work/dev_current/dev026/elbe/simatickernelmodules/rovema_simatickernelmodules_git20220304_001.bundle'
15	15
16	16		# calculated values
17	17		typeset kernel_build_path
18	18		)
19	19
20	20		function build_debian_kernel_from_src
21	21		{
22	22		set -o xtrace
23	23		set -o errexit
24	24		set -o nounset
25	25
26	26		integer res
27	27		integer num_cpus=$(getconf '_NPROCESSORS_CONF')
28	28
29	29		tar xf "/usr/src/linux-source-${bconfig.kernel_maj_min}.tar.xz"
30	30
31	31		cd "linux-source-${bconfig.kernel_maj_min}"
32	32
33	33		unxz <"/usr/src/linux-patch-${bconfig.kernel_maj_min}-rt.patch.xz" \| patch -p1
34	34
35	35		cp "/usr/src/linux-config-${bconfig.kernel_maj_min}/config.amd64_rt_amd64.xz" .
36	36		unxz 'config.amd64_rt_amd64.xz'
37	37
38	38		# copy config and make kernel build accept it without
39	39		# jumping to the $ make menu # menu
40	40		cp 'config.amd64_rt_amd64' '.config'
41	41		make oldconfig <'/dev/null'
42	42
43	43		# show any modifications $ make oldconfig # did to the kernel config
44	44		print '--------------------------------------'
45	45		diff -u 'config.amd64_rt_amd64' '.config' \|\| true
46	46		print '--------------------------------------'
47	47
48	48		make clean
49	49		time nice -n 19 make -j$((num_cpus*2)) deb-pkg 2>&1 \| tee -a buildlog.log
50	50		(( res=$? ))
51	51
52		-	printf '#### Finished, return code = %d\n' res
	52	+	printf '#### Kernel build finished, return code = %d\n' res
53	53
54	54		if (( res == 0 )) ; then
55	55		# remember the path to the kernel build, but only if we were successful
56		-	bconfig.kernel_build_path="$PWD"
	56	+	bconfig.kernel_build_path="$PWD/"
57	57		fi
58	58
59	59		return $res
60	60		}
61	61
62	62		function build_simatic_kernel_modules
63	63		{
64	64		set -o xtrace
65	65		set -o errexit
66	66		set -o nounset
67	67
68	68		# dummy for now
69	69		#simatic-ipc-modules-lsp-v1.2.0RC1$ make -C /home/test001/work/kernel_test001/linux-5.10.52/ M=$PWD
70	70
71	71		rm -Rf simatic_build
72	72		mkdir simatic_build
73	73		cd simatic_build
74	74
75	75		cp "${bconfig.simatic_src_gitbundle}" .
76	76		git clone rovema_simatickernelmodules_git20220304_001.bundle
77	77
78	78		cd rovema_simatickernelmodules_git20220304_001/simatic-ipc-modules-lsp-v1.2.0RC1/
79		-	typeset kernel_build_path="$PWD/../../../linux-source-${bconfig.kernel_maj_min}"
	79	+	make -C "${bconfig.kernel_build_path}" KSRC="${bconfig.kernel_build_path}" M=$PWD
81	80
82	81		#
83	82		# ToDo: Install in root/ dir, and turn that filesystem hieracy into a
84	83		# Debian package
	84	+	# see https://unix.stackexchange.com/questions/30303/how-to-create-a-deb-file-manually
85	85		#
86	86
87	87		return 1
88	88		}
89	89
90	90
91	91		function build_igb_avb_kernel_module
92	92		{
93	93		set -o xtrace
94	94		set -o errexit
95	95		set -o nounset
96	96
97	97		rm -Rf igb_avb_build
98	98		mkdir igb_avb_build
99	99		cd igb_avb_build
100	100
101	101		cp "${bconfig.igb_avb_src_gitbundle}" .
102	102		git clone rovema_igb_avb_git20220302_001.bundle
103	103
104	104		cd rovema_igb_avb_git20220302_001/kmod
105		-	typeset kernel_build_path="$PWD/../../../../../../linux-source-${bconfig.kernel_maj_min}"
106		-	make -C ${kernel_build_path} KSRC="${kernel_build_path}" M=$PWD clean
107		-	make -C ${kernel_build_path} KSRC="${kernel_build_path}" M=$PWD
108	105
	106	+	make -C "${bconfig.kernel_build_path}" KSRC="${bconfig.kernel_build_path}" M=$PWD clean
109	108
	109	+
110	110		cd ../lib
111	111		make
112	112
113	113		#
114	114		# ToDo: Install in root/ dir, and turn that filesystem hieracy into a
115	115		# Debian package
116	116		#
117	117
118	118		# dummy for now
	119	+	# see https://unix.stackexchange.com/questions/30303/how-to-create-a-deb-file-manually
119	120
120	121		return 1
121	122		}
122	123
123	124		function main
124	125		{
125	126		set -o xtrace
126	127		set -o errexit
127	128
128		-	# build_debian_kernel_from_src
	129	+	if (( 0 )) ; then
	130	+	build_debian_kernel_from_src
129	134		build_simatic_kernel_modules \|\| true
130	135		build_igb_avb_kernel_module
131	136		}
132	137
133	138		#
134	139		# main
135	140		#
136	141		builtin getconf
137	142
138	143		main "$@"
139	144
140	145		# EOF.
141	146