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modified post d7702614 by Anonymous on Tue 19th Dec 2023 10:29
original post 7b3abd7e by Anonymous on Thu 14th Dec 2023 18:13
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#!/bin/ksh93

1	1		#!/bin/ksh93
2	2
3	3		#
4	4		# build_rovema_kernel.ksh
5	5		#
6		-	# worse-is-better/simpler rewrite for rovema-081 kernel
	6	+	# worse-is-better/simpler rewrite for rovema-082 kernel
7	7		#
8	8		# Written by Roland Mainz <roland.mainz@nrubsig.org>
9	9		#
10	10
11	11
12	12		#
13	13		# * igb_avb.ko installation:
14	14		# igb_avb kernel module must be manually installed on the target system, and the igb.ko kernel module removed
15		-	# $ dist_files/igb_avb.ko /lib/modules/6.6.5-rt16-rovema082/kernel/drivers/net/ethernet/intel/igb/.
	15	+	# $ cp dist_files/igb_avb.ko /lib/modules/6.6.5-rt16-rovema082/kernel/drivers/net/ethernet/intel/igb/.
16	16		# $ mv /lib/modules/6.6.5-rt16-rovema082/kernel/drivers/net/ethernet/intel/igb/igb.ko /root/igb.ko_disabled
17	17		# $ depmod
18	18		# $ update-initramfs -k all -u
19	19
20	20		#
21	21		#
22	22		# * simatic installation:
23	23		# $ cp dist_files/simatic-ipc*.ko /lib/modules/6.6.5-rt16-rovema082/kernel/drivers/mfd/.
24	24		# $ depmod
25	25		# $ update-initramfs -k all -u
26	26		#
27	27		# * install closed-source firmware data:
28	28		# $ cd /
29	29		# $ tar -xf /mnt_nfs/work/debian_rt_kernel_src/linux_6_6_5_rt16/dist_files/linux_firmware_git_lib_firmware_i915_20231211.tar.bz2
30	30		# $ update-initramfs -k all -u
31	31		#
32	32
33	33
34	34		#
35	35		# build Linux kernel v6.6.5-rt16
36	36		#
37	37
38	38		function build_kernel
39	39		{
40	40		set -o errexit
41	41		set -o nounset
42	42
43	43		# subshell so CWD remains unchanged on return
44	44		(
45	45		mkdir builddir_kernel
46	46		cd builddir_kernel/
47	47
48	48		git clone -b 'v6.6.5-rt16' git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git
49	49
50	50		cd linux-rt-devel/
51	51		cp '../../myconfig_linux_v6_6_5_rt16.config' '.config'
52	52
53	53		#
54	54		# fixme: add patches here
55	55		# - rt RCU patch
56	56		# - default boot args patch
57	57		# - i915 patches
58	58		# - rt udev dir
59	59		#
60	60
61	61		time nice -n 19 ksh -c 'CC="gcc -m32" make -j2 bindeb-pkg 2>&1 \| tee buildlog.log'
62	62
63	63		cd ..
64	64
65	65		cp linux-headers-*_i386.deb "${c.dist_files_dir}/"
66	66		cp linux-image-*_i386.deb "${c.dist_files_dir}/"
67	67		cp linux-libc-*_i386.deb "${c.dist_files_dir}/"
68	68		)
69	69
70	70		print '# build_kernel OK'
71	71
72	72		return 0
73	73		}
74	74
75	75
76	76		#
77	77		# build custom igb_avb module
78	78		#
79	79		function build_igbavb
80	80		{
81	81		set -o errexit
82	82		set -o nounset
83	83
84	84		# subshell so CWD remains unchanged on return
85	85		(
86	86		mkdir builddir_igbavb
87	87		cd builddir_igbavb/
88	88
89	89		git clone https://github.com/Avnu/igb_avb.git
90	90
91	91		cd igb_avb/
92	92
93	93		# switch to commit 6c115ee89c88f6284d1407244b4a47586c3332d,
94	94		# which is known to work with Linux 6.6.5-RT16
95	95		git checkout '86c115ee89c88f6284d1407244b4a47586c3332d'
96	96
97	97		#
98	98		# apply patches
99	99		#
100	100		# fixme:
101	101		# - pciid patch is missing
102	102		# - igb patches may need backport (bfp ?)
103	103		#
104	104		git am <'../../0001-libigb-Use-PTHREAD_PRIO_INHERIT-for-mutex-to-avoid-r.patch'
105	105		git am <'../../0002-Disable-pci_-_pcie_error_reporting-for-Linux-kernels.patch'
106	106
107	107		#
108	108		# build kernel module
109	109		#
110	110		cd kmod/
111	111		CC="gcc -m32" make -j4 -C "$PWD/../../../builddir_kernel/linux-rt-devel/" KSRC="$PWD/../../../builddir_kernel/linux-rt-devel/" M=$PWD
112	112		cp igb_avb.ko "${c.dist_files_dir}/"
113	113		cd ..
114	114
115	115		#cp simatic-ipc*.ko /lib/modules/6.6.5-rt16-rovema082/kernel/drivers/mfd/.
116	116		# build libigb.a
117	117		#
118	118		cd lib
119	119		CC="gcc -m32" make all
120	120
121	121		#
122	122		# build shared library vesion of libigb.a
123	123		#
124	124		gcc -m32 -shared -fPIC -o libigb.so -Wl,--whole-archive libigb.a -Wl,--no-whole-archive -lpthread
125	125		cp libigb.so "${c.dist_files_dir}/"
126	126		)
127	127
128	128		print '# build_igbavb OK'
129	129
130	130		return 0
131	131		}
132	132
133	133		function build_simatic
134	134		{
135	135		set -o errexit
136	136		set -o nounset
137	137
138	138		# subshell so CWD remains unchanged on return
139	139		(
140	140		mkdir builddir_simatic
141	141		cd builddir_simatic/
142	142
143	143		svn checkout http://svn.rovema.de/repos/bootimage/branches/dev027_kernel5_15/rovema_simatickernelmodules/simatic-ipc-modules-lsp-v1.2.0RC1/
144	144		cd simatic-ipc-modules-lsp-v1.2.0RC1/
145	145		make -C "$PWD/../../builddir_kernel/linux-rt-devel/" KSRC="$PWD/../../builddir_kernel/linux-rt-devel/" M=$PWD
146	146
147	147		cp ./simatic-ipc.ko "${c.dist_files_dir}/"
148	148		cp ./simatic-ipc-leds.ko "${c.dist_files_dir}/"
149	149		cp ./simatic-ipc-wdt.ko "${c.dist_files_dir}/"
150	150		cp ./simatic-ipc-batt.ko "${c.dist_files_dir}/"
151	151		cp ./simatic-ipc-sensors.ko "${c.dist_files_dir}/"
152	152		cp ./simatic-ipc-ps.ko "${c.dist_files_dir}/"
153	153		cp ./simatic-ipc-nvram.ko "${c.dist_files_dir}/"
154	154		)
155	155
156	156		print '# build_simatic OK'
157	157
158	158		return 0
159	159		}
160	160
161	161		function build_firmware_tarball
162	162		{
163	163		set -o errexit
164	164		set -o nounset
165	165
166	166		typeset -r linux_firmware_git_tag='20231211'
167	167		typeset -r tarball_filename="linux_firmware_git_lib_firmware_i915_${linux_firmware_git_tag}.tar.bz2"
168	168
169	169		# subshell so CWD remains unchanged on return
170	170		(
171	171		mkdir build_firmware_tarball
172	172		cd build_firmware_tarball/
173	173
174	174		git clone -b "${linux_firmware_git_tag}" git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git
175	175		mkdir -p 'lib/firmware/i915'
176	176		ln linux-firmware/i915/* 'lib/firmware/i915/.'
177	177		tar -cvf - 'lib' \| pbzip2 >"${tarball_filename}"
178	178		cp "${tarball_filename}" "${c.dist_files_dir}/"
179	179		)
180	180		}
181	181
182	182		#
183	183		# main
184	184		#
185	185
186	186		# use ksh93 builtins
187	187		export PATH="/opt/ast/bin/:/usr/ast/bin:$PATH"
188	188		builtin mkdir
189	189
190	190		# keep all global script data in a compound variable
191	191		# so we can use $ print -u2 -v c # for debugging
192	192		compound c
193	193
194	194		typeset c.dist_files_dir="$PWD/dist_files"
195	195		mkdir -p "${c.dist_files_dir}"
196	196
197	197
198	198		#
199	199		# build packages
200	200		#
201	201		build_kernel
202	202		build_igbavb
203	203		build_simatic
204	204		build_firmware_tarball
205	205
206	206		#
207	207		# list resulting packages
208	208		#
209	209		ls -l "${c.dist_files_dir}"
210	210
211	211		# EOF.
212	212