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modified post 9ca by Anonymous on Wed 23rd Mar 2022 12:34
original post 215770fac3 by Anonymous on Tue 22nd Mar 2022 14:33
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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	+	typeset kernel_config_name='config.amd64_rt_amd64'
13	14		typeset igb_avb_src_gitbundle='/home/test001/work/dev_current/dev026/elbe/igb_avb/rovema_igb_avb_git20220302_001.bundle'
14	15		typeset simatic_src_gitbundle='/home/test001/work/dev_current/dev026/elbe/simatickernelmodules/rovema_simatickernelmodules_git20220304_001.bundle'
15	16
16	17		# calculated values
17	18		typeset kernel_build_path
18	19		)
19	20
20	21		function build_debian_kernel_from_src
21	22		{
22	23		set -o xtrace
23	24		set -o errexit
24	25		set -o nounset
25	26
26	27		integer res
27	28		integer num_cpus=$(getconf '_NPROCESSORS_CONF')
28	29
29	30		tar xf "/usr/src/linux-source-${bconfig.kernel_maj_min}.tar.xz"
30	31
31	32		cd "linux-source-${bconfig.kernel_maj_min}"
32	33
33	34		unxz <"/usr/src/linux-patch-${bconfig.kernel_maj_min}-rt.patch.xz" \| patch -p1
34	35
35		-	cp "/usr/src/linux-config-${bconfig.kernel_maj_min}/config.amd64_rt_amd64.xz" .
	36	+	cp "/usr/src/linux-config-${bconfig.kernel_maj_min}/${bconfig.kernel_config_name}.xz" .
36		-	unxz 'config.amd64_rt_amd64.xz'
	37	+	unxz "${bconfig.kernel_config_name}.xz"
37	38
38	39		# copy config and make kernel build accept it without
39	40		# jumping to the $ make menu # menu
40		-	cp 'config.amd64_rt_amd64' '.config'
	41	+	cp "${bconfig.kernel_config_name}" '.config'
41	42		make oldconfig <'/dev/null'
42	43
43	44		# show any modifications $ make oldconfig # did to the kernel config
44	45		print '--------------------------------------'
45		-	diff -u 'config.amd64_rt_amd64' '.config' \|\| true
	46	+	diff -u "${bconfig.kernel_config_name}" '.config' \|\| true
46	47		print '--------------------------------------'
47	48
48	49		make clean
49		-	time nice -n 19 make -j$((num_cpus*2)) deb-pkg 2>&1 \| tee -a buildlog.log
	50	+	time nice -n 19 make -j$((num_cpus*4)) deb-pkg 2>&1 \| tee -a buildlog.log
50	51		(( res=$? ))
51	52
52	53		printf '#### Kernel build finished, return code = %d\n' res
53	54
54	55		if (( res == 0 )) ; then
55	56		# remember the path to the kernel build, but only if we were successful
56	57		bconfig.kernel_build_path="$PWD/"
57	58		fi
58	59
59	60		return $res
60	61		}
61	62
62	63		function build_simatic_kernel_modules
63	64		{
64	65		set -o xtrace
65	66		set -o errexit
66	67		set -o nounset
67	68
68	69		# dummy for now
69	70		#simatic-ipc-modules-lsp-v1.2.0RC1$ make -C /home/test001/work/kernel_test001/linux-5.10.52/ M=$PWD
70	71
71	72		rm -Rf simatic_build
72	73		mkdir simatic_build
73	74		cd simatic_build
74	75
75	76		cp "${bconfig.simatic_src_gitbundle}" .
76	77		git clone rovema_simatickernelmodules_git20220304_001.bundle
77	78
78	79		cd rovema_simatickernelmodules_git20220304_001/simatic-ipc-modules-lsp-v1.2.0RC1/
79	80		make -C "${bconfig.kernel_build_path}" KSRC="${bconfig.kernel_build_path}" M=$PWD
80	81
81	82		#
82	83		# ToDo: Install in root/ dir, and turn that filesystem hieracy into a
83	84		# Debian package
84	85		# see https://unix.stackexchange.com/questions/30303/how-to-create-a-deb-file-manually
85	86		#
86	87
87	88		return 1
88	89		}
89	90
90	91
91	92		function build_igb_avb_kernel_module
92	93		{
93	94		set -o xtrace
94	95		set -o errexit
95	96		set -o nounset
96	97
97	98		rm -Rf igb_avb_build
98	99		mkdir igb_avb_build
99	100		cd igb_avb_build
100	101
101	102		cp "${bconfig.igb_avb_src_gitbundle}" .
102	103		git clone rovema_igb_avb_git20220302_001.bundle
103	104
104	105		cd rovema_igb_avb_git20220302_001/kmod
105	106
106	107		make -C "${bconfig.kernel_build_path}" KSRC="${bconfig.kernel_build_path}" M=$PWD clean
107	108		make -C ${bconfig.kernel_build_path} KSRC="${bconfig.kernel_build_path}" M=$PWD
108	109
109	110
110	111		cd ../lib
111	112		make
112	113
113	114		#
114	115		# ToDo: Install in root/ dir, and turn that filesystem hieracy into a
115	116		# Debian package
116	117		#
117	118
118	119		# dummy for now
119	120		# see https://unix.stackexchange.com/questions/30303/how-to-create-a-deb-file-manually
120	121
121	122		return 1
122	123		}
123	124
124	125		function main
125	126		{
126	127		set -o xtrace
127	128		set -o errexit
128	129
129	130		if (( 0 )) ; then
130	131		build_debian_kernel_from_src
131	132		else
132	133		bconfig.kernel_build_path="$PWD/linux-source-${bconfig.kernel_maj_min}/"
133	134		fi
134	135		build_simatic_kernel_modules \|\| true
135	136		build_igb_avb_kernel_module
136	137		}
137	138
138	139		#
139	140		# main
140	141		#
141	142		builtin getconf
142	143
143	144		main "$@"
144	145
145	146		# EOF.
146	147