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Raspi2-3_GenImage
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1 1 #
2 2 # Build and Setup RPi2/3 Kernel
3 3 #
4 4
5 5 # Load utility functions
6 6 . ./functions.sh
7 7
8 8 # Need to use kali kernel src if nexmon is enabled
9 9 if [ "$ENABLE_NEXMON" = true ] ; then
10 10 echo "WARNING: if ENABLE_NEXMON is used remember to put the CORRECT KERNELSRC IN KERNELSRC_DIR!!!!!1!"
11 11 KERNEL_URL="${KALI_KERNEL_URL}"
12 12 KERNEL_BRANCH=""
13 13 fi
14 14
15 15 # Fetch and build latest raspberry kernel
16 16 if [ "$BUILD_KERNEL" = true ] ; then
17 17 # Setup source directory
18 18 mkdir -p "${KERNEL_DIR}"
19 19
20 20 # Copy existing kernel sources into chroot directory
21 21 if [ -n "$KERNELSRC_DIR" ] && [ -d "$KERNELSRC_DIR" ] ; then
22 22 # Copy kernel sources and include hidden files
23 23 cp -r "${KERNELSRC_DIR}/". "${KERNEL_DIR}"
24 24
25 25 # Clean the kernel sources
26 26 if [ "$KERNELSRC_CLEAN" = true ] && [ "$KERNELSRC_PREBUILT" = false ] ; then
27 27 make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" mrproper
28 28 fi
29 29 else # KERNELSRC_DIR=""
30 30 # Create temporary directory for kernel sources
31 31 temp_dir=$(as_nobody mktemp -d)
32 32
33 33 # Fetch current RPi2/3 kernel sources
34 34 if [ -z "${KERNEL_BRANCH}" ] ; then
35 35 as_nobody -H git -C "${temp_dir}" clone --depth=1 "${KERNEL_URL}" linux
36 36 else
37 37 as_nobody -H git -C "${temp_dir}" clone --depth=1 --branch "${KERNEL_BRANCH}" "${KERNEL_URL}" linux
38 38 fi
39 39
40 40 # Copy downloaded kernel sources
41 41 cp -r "${temp_dir}/linux/"* "${KERNEL_DIR}"
42 42
43 43 # Remove temporary directory for kernel sources
44 44 rm -fr "${temp_dir}"
45 45
46 46 # Set permissions of the kernel sources
47 47 chown -R root:root "${R}/usr/src"
48 48 fi
49 49
50 50 # Calculate optimal number of kernel building threads
51 51 if [ "$KERNEL_THREADS" = "1" ] && [ -r /proc/cpuinfo ] ; then
52 52 KERNEL_THREADS=$(grep -c processor /proc/cpuinfo)
53 53 fi
54 54
55 55 # Configure and build kernel
56 56 if [ "$KERNELSRC_PREBUILT" = false ] ; then
57 57 # Remove device, network and filesystem drivers from kernel configuration
58 58 if [ "$KERNEL_REDUCE" = true ] ; then
59 59 make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" "${KERNEL_DEFCONFIG}"
60 60 sed -i\
61 61 -e "s/\(^CONFIG_SND.*\=\).*/\1n/"\
62 62 -e "s/\(^CONFIG_SOUND.*\=\).*/\1n/"\
63 63 -e "s/\(^CONFIG_AC97.*\=\).*/\1n/"\
64 64 -e "s/\(^CONFIG_VIDEO_.*\=\).*/\1n/"\
65 65 -e "s/\(^CONFIG_MEDIA_TUNER.*\=\).*/\1n/"\
66 66 -e "s/\(^CONFIG_DVB.*\=\)[ym]/\1n/"\
67 67 -e "s/\(^CONFIG_REISERFS.*\=\).*/\1n/"\
68 68 -e "s/\(^CONFIG_JFS.*\=\).*/\1n/"\
69 69 -e "s/\(^CONFIG_XFS.*\=\).*/\1n/"\
70 70 -e "s/\(^CONFIG_GFS2.*\=\).*/\1n/"\
71 71 -e "s/\(^CONFIG_OCFS2.*\=\).*/\1n/"\
72 72 -e "s/\(^CONFIG_BTRFS.*\=\).*/\1n/"\
73 73 -e "s/\(^CONFIG_HFS.*\=\).*/\1n/"\
74 74 -e "s/\(^CONFIG_JFFS2.*\=\)[ym]/\1n/"\
75 75 -e "s/\(^CONFIG_UBIFS.*\=\).*/\1n/"\
76 76 -e "s/\(^CONFIG_SQUASHFS.*\=\)[ym]/\1n/"\
77 77 -e "s/\(^CONFIG_W1.*\=\)[ym]/\1n/"\
78 78 -e "s/\(^CONFIG_HAMRADIO.*\=\).*/\1n/"\
79 79 -e "s/\(^CONFIG_CAN.*\=\).*/\1n/"\
80 80 -e "s/\(^CONFIG_IRDA.*\=\).*/\1n/"\
81 81 -e "s/\(^CONFIG_BT_.*\=\).*/\1n/"\
82 82 -e "s/\(^CONFIG_WIMAX.*\=\)[ym]/\1n/"\
83 83 -e "s/\(^CONFIG_6LOWPAN.*\=\).*/\1n/"\
84 84 -e "s/\(^CONFIG_IEEE802154.*\=\).*/\1n/"\
85 85 -e "s/\(^CONFIG_NFC.*\=\).*/\1n/"\
86 86 -e "s/\(^CONFIG_FB_TFT=.*\=\).*/\1n/"\
87 87 -e "s/\(^CONFIG_TOUCHSCREEN.*\=\).*/\1n/"\
88 88 -e "s/\(^CONFIG_USB_GSPCA_.*\=\).*/\1n/"\
89 89 -e "s/\(^CONFIG_DRM.*\=\).*/\1n/"\
90 90 "${KERNEL_DIR}/.config"
91 91 fi
92 92
93 93 if [ "$KERNELSRC_CONFIG" = true ] ; then
94 94 # Load default raspberry kernel configuration
95 95 make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" "${KERNEL_DEFCONFIG}"
96 96
97 97 #Switch to KERNELSRC_DIR so we can use set_kernel_config
98 98 cd "${KERNEL_DIR}" || exit
99 99
100 100 # enable ZSWAP see https://askubuntu.com/a/472227 or https://wiki.archlinux.org/index.php/zswap
101 101 if [ "$KERNEL_ZSWAP" = true ] ; then
102 102 set_kernel_config CONFIG_ZPOOL y
103 103 set_kernel_config CONFIG_ZSWAP y
104 104 set_kernel_config CONFIG_ZBUD y
105 105 set_kernel_config CONFIG_Z3FOLD y
106 106 set_kernel_config CONFIG_ZSMALLOC y
107 107 set_kernel_config CONFIG_PGTABLE_MAPPING y
108 108 fi
109 109
110 110 # enable basic KVM support; see https://www.raspberrypi.org/forums/viewtopic.php?f=63&t=210546&start=25#p1300453
111 111 if [ "$KERNEL_VIRT" = true ] && { [ "$RPI_MODEL" = 2 ] || [ "$RPI_MODEL" = 3 ] || [ "$RPI_MODEL" = 3P ] ; } ; then
112 112 set_kernel_config CONFIG_VIRTUALIZATION y
113 113 set_kernel_config CONFIG_KVM y
114 114 set_kernel_config CONFIG_VHOST_NET m
115 115 set_kernel_config CONFIG_VHOST_CROSS_ENDIAN_LEGACY y
116 116 fi
117 117
118 118 # enable apparmor,integrity audit,
119 119 if [ "$KERNEL_SECURITY" = true ] ; then
120 120
121 121 # security filesystem, security models and audit
122 122 set_kernel_config CONFIG_SECURITYFS y
123 123 set_kernel_config CONFIG_SECURITY y
124 124 set_kernel_config CONFIG_AUDIT y
125 125
126 126 # harden strcpy and memcpy
127 127 set_kernel_config CONFIG_HARDENED_USERCOPY=y
128 128 set_kernel_config CONFIG_HAVE_HARDENED_USERCOPY_ALLOCATOR=y
129 129 set_kernel_config CONFIG_FORTIFY_SOURCE=y
130 130
131 131 # integrity sub-system
132 132 set_kernel_config CONFIG_INTEGRITY=y
133 133 set_kernel_config CONFIG_INTEGRITY_ASYMMETRIC_KEYS=y
134 134 set_kernel_config CONFIG_INTEGRITY_AUDIT=y
135 135 set_kernel_config CONFIG_INTEGRITY_SIGNATURE=y
136 136 set_kernel_config CONFIG_INTEGRITY_TRUSTED_KEYRING=y
137 137
138 138 # This option provides support for retaining authentication tokens and access keys in the kernel.
139 139 set_kernel_config CONFIG_KEYS=y
140 140 set_kernel_config CONFIG_KEYS_COMPAT=y
141 141
142 142 # Apparmor
143 143 set_kernel_config CONFIG_SECURITY_APPARMOR_BOOTPARAM_VALUE 0
144 144 set_kernel_config CONFIG_SECURITY_APPARMOR_HASH_DEFAULT y
145 145 set_kernel_config CONFIG_DEFAULT_SECURITY_APPARMOR y
146 146 set_kernel_config CONFIG_SECURITY_APPARMOR y
147 147 set_kernel_config CONFIG_SECURITY_APPARMOR_HASH y
148 148 set_kernel_config CONFIG_DEFAULT_SECURITY "apparmor"
149 149
150 150 # restrictions on unprivileged users reading the kernel
151 151 set_kernel_config CONFIG_SECURITY_DMESG_RESTRICT=y
152 152
153 153 # network security hooks
154 154 set_kernel_config CONFIG_SECURITY_NETWORK y
155 155 set_kernel_config CONFIG_SECURITY_NETWORK_XFRM=y
156 156 set_kernel_config CONFIG_SECURITY_PATH=y
157 157 set_kernel_config CONFIG_SECURITY_YAMA=y
158 158
159 159 # New Options
160 if [ "$KERNEL_NF" = true ]
160 if [ "$KERNEL_NF" = true ] ; then
161 161 set_kernel_config CONFIG_IP_NF_SECURITY m
162 162 set_kernel_config CONFIG_NETLABEL m
163 163 set_kernel_config CONFIG_IP6_NF_SECURITY m
164 164 fi
165 165 set_kernel_config CONFIG_SECURITY_SELINUX n
166 166 set_kernel_config CONFIG_SECURITY_SMACK n
167 167 set_kernel_config CONFIG_SECURITY_TOMOYO n
168 168 set_kernel_config CONFIG_SECURITY_APPARMOR_DEBUG n
169 169 set_kernel_config CONFIG_SECURITY_LOADPIN n
170 170 set_kernel_config CONFIG_HARDENED_USERCOPY_PAGESPAN n
171 171 set_kernel_config CONFIG_IMA n
172 172 set_kernel_config CONFIG_EVM n
173 173 set_kernel_config CONFIG_FANOTIFY_ACCESS_PERMISSIONS y
174 174 set_kernel_config CONFIG_NFSD_V4_SECURITY_LABEL y
175 175 set_kernel_config CONFIG_PKCS7_MESSAGE_PARSER y
176 176 set_kernel_config CONFIG_SYSTEM_TRUSTED_KEYRING y
177 177 set_kernel_config CONFIG_SYSTEM_TRUSTED_KEYS y
178 178 set_kernel_config CONFIG_SYSTEM_EXTRA_CERTIFICATE y
179 179 set_kernel_config CONFIG_SECONDARY_TRUSTED_KEYRING y
180 180 set_kernel_config CONFIG_IMA_KEYRINGS_PERMIT_SIGNED_BY_BUILTIN_OR_SECONDARY n
181 181 fi
182 182
183 183 # Netfilter kernel support See https://github.com/raspberrypi/linux/issues/2177#issuecomment-354647406
184 184 if [ "$KERNEL_NF" = true ] ; then
185 185 set_kernel_config CONFIG_IP_NF_TARGET_SYNPROXY m
186 186 set_kernel_config CONFIG_NETFILTER_XT_TARGET_AUDIT m
187 187 set_kernel_config CONFIG_NETFILTER_XT_MATCH_CGROUP m
188 188 set_kernel_config CONFIG_NETFILTER_XT_MATCH_IPCOMP m
189 189 set_kernel_config CONFIG_NETFILTER_XT_MATCH_SOCKET m
190 190 set_kernel_config CONFIG_NFT_FIB_INET m
191 191 set_kernel_config CONFIG_NFT_FIB_IPV4 m
192 192 set_kernel_config CONFIG_NFT_FIB_IPV6 m
193 193 set_kernel_config CONFIG_NFT_FIB_NETDEV m
194 194 set_kernel_config CONFIG_NFT_OBJREF m
195 195 set_kernel_config CONFIG_NFT_RT m
196 196 set_kernel_config CONFIG_NFT_SET_BITMAP m
197 197 set_kernel_config CONFIG_NF_CONNTRACK_TIMEOUT y
198 198 set_kernel_config CONFIG_NF_LOG_ARP m
199 199 set_kernel_config CONFIG_NF_SOCKET_IPV4 m
200 200 set_kernel_config CONFIG_NF_SOCKET_IPV6 m
201 201 set_kernel_config CONFIG_BRIDGE_EBT_BROUTE m
202 202 set_kernel_config CONFIG_BRIDGE_EBT_T_FILTER m
203 203 set_kernel_config CONFIG_BRIDGE_NF_EBTABLES m
204 204 set_kernel_config CONFIG_IP6_NF_IPTABLES m
205 205 set_kernel_config CONFIG_IP6_NF_MATCH_AH m
206 206 set_kernel_config CONFIG_IP6_NF_MATCH_EUI64 m
207 207 set_kernel_config CONFIG_IP6_NF_NAT m
208 208 set_kernel_config CONFIG_IP6_NF_TARGET_MASQUERADE m
209 209 set_kernel_config CONFIG_IP6_NF_TARGET_NPT m
210 210 set_kernel_config CONFIG_IP_NF_SECURITY m
211 211 set_kernel_config CONFIG_IP_SET_BITMAP_IPMAC m
212 212 set_kernel_config CONFIG_IP_SET_BITMAP_PORT m
213 213 set_kernel_config CONFIG_IP_SET_HASH_IP m
214 214 set_kernel_config CONFIG_IP_SET_HASH_IPMARK m
215 215 set_kernel_config CONFIG_IP_SET_HASH_IPPORT m
216 216 set_kernel_config CONFIG_IP_SET_HASH_IPPORTIP m
217 217 set_kernel_config CONFIG_IP_SET_HASH_IPPORTNET m
218 218 set_kernel_config CONFIG_IP_SET_HASH_MAC m
219 219 set_kernel_config CONFIG_IP_SET_HASH_NET m
220 220 set_kernel_config CONFIG_IP_SET_HASH_NETIFACE m
221 221 set_kernel_config CONFIG_IP_SET_HASH_NETNET m
222 222 set_kernel_config CONFIG_IP_SET_HASH_NETPORT m
223 223 set_kernel_config CONFIG_IP_SET_HASH_NETPORTNET m
224 224 set_kernel_config CONFIG_IP_SET_LIST_SET m
225 225 set_kernel_config CONFIG_NETFILTER_XTABLES m
226 226 set_kernel_config CONFIG_NETFILTER_XTABLES m
227 227 set_kernel_config CONFIG_NFT_BRIDGE_META m
228 228 set_kernel_config CONFIG_NFT_BRIDGE_REJECT m
229 229 set_kernel_config CONFIG_NFT_CHAIN_NAT_IPV4 m
230 230 set_kernel_config CONFIG_NFT_CHAIN_NAT_IPV6 m
231 231 set_kernel_config CONFIG_NFT_CHAIN_ROUTE_IPV4 m
232 232 set_kernel_config CONFIG_NFT_CHAIN_ROUTE_IPV6 m
233 233 set_kernel_config CONFIG_NFT_COMPAT m
234 234 set_kernel_config CONFIG_NFT_COUNTER m
235 235 set_kernel_config CONFIG_NFT_CT m
236 236 set_kernel_config CONFIG_NFT_DUP_IPV4 m
237 237 set_kernel_config CONFIG_NFT_DUP_IPV6 m
238 238 set_kernel_config CONFIG_NFT_DUP_NETDEV m
239 239 set_kernel_config CONFIG_NFT_EXTHDR m
240 240 set_kernel_config CONFIG_NFT_FWD_NETDEV m
241 241 set_kernel_config CONFIG_NFT_HASH m
242 242 set_kernel_config CONFIG_NFT_LIMIT m
243 243 set_kernel_config CONFIG_NFT_LOG m
244 244 set_kernel_config CONFIG_NFT_MASQ m
245 245 set_kernel_config CONFIG_NFT_MASQ_IPV4 m
246 246 set_kernel_config CONFIG_NFT_MASQ_IPV6 m
247 247 set_kernel_config CONFIG_NFT_META m
248 248 set_kernel_config CONFIG_NFT_NAT m
249 249 set_kernel_config CONFIG_NFT_NUMGEN m
250 250 set_kernel_config CONFIG_NFT_QUEUE m
251 251 set_kernel_config CONFIG_NFT_QUOTA m
252 252 set_kernel_config CONFIG_NFT_REDIR m
253 253 set_kernel_config CONFIG_NFT_REDIR_IPV4 m
254 254 set_kernel_config CONFIG_NFT_REDIR_IPV6 m
255 255 set_kernel_config CONFIG_NFT_REJECT m
256 256 set_kernel_config CONFIG_NFT_REJECT_INET m
257 257 set_kernel_config CONFIG_NFT_REJECT_IPV4 m
258 258 set_kernel_config CONFIG_NFT_REJECT_IPV6 m
259 259 set_kernel_config CONFIG_NFT_SET_HASH m
260 260 set_kernel_config CONFIG_NFT_SET_RBTREE m
261 261 set_kernel_config CONFIG_NF_CONNTRACK_IPV4 m
262 262 set_kernel_config CONFIG_NF_CONNTRACK_IPV6 m
263 263 set_kernel_config CONFIG_NF_DEFRAG_IPV4 m
264 264 set_kernel_config CONFIG_NF_DEFRAG_IPV6 m
265 265 set_kernel_config CONFIG_NF_DUP_IPV4 m
266 266 set_kernel_config CONFIG_NF_DUP_IPV6 m
267 267 set_kernel_config CONFIG_NF_DUP_NETDEV m
268 268 set_kernel_config CONFIG_NF_LOG_BRIDGE m
269 269 set_kernel_config CONFIG_NF_LOG_IPV4 m
270 270 set_kernel_config CONFIG_NF_LOG_IPV6 m
271 271 set_kernel_config CONFIG_NF_NAT_IPV4 m
272 272 set_kernel_config CONFIG_NF_NAT_IPV6 m
273 273 set_kernel_config CONFIG_NF_NAT_MASQUERADE_IPV4 m
274 274 set_kernel_config CONFIG_NF_NAT_MASQUERADE_IPV6 m
275 275 set_kernel_config CONFIG_NF_NAT_PPTP m
276 276 set_kernel_config CONFIG_NF_NAT_PROTO_GRE m
277 277 set_kernel_config CONFIG_NF_NAT_REDIRECT m
278 278 set_kernel_config CONFIG_NF_NAT_SIP m
279 279 set_kernel_config CONFIG_NF_NAT_SNMP_BASIC m
280 280 set_kernel_config CONFIG_NF_NAT_TFTP m
281 281 set_kernel_config CONFIG_NF_REJECT_IPV4 m
282 282 set_kernel_config CONFIG_NF_REJECT_IPV6 m
283 283 set_kernel_config CONFIG_NF_TABLES m
284 284 set_kernel_config CONFIG_NF_TABLES_ARP m
285 285 set_kernel_config CONFIG_NF_TABLES_BRIDGE m
286 286 set_kernel_config CONFIG_NF_TABLES_INET m
287 287 set_kernel_config CONFIG_NF_TABLES_IPV4 m
288 288 set_kernel_config CONFIG_NF_TABLES_IPV6 m
289 289 set_kernel_config CONFIG_NF_TABLES_NETDEV m
290 290 fi
291 291
292 292 # Enables BPF syscall for systemd-journald see https://github.com/torvalds/linux/blob/master/init/Kconfig#L848 or https://groups.google.com/forum/#!topic/linux.gentoo.user/_2aSc_ztGpA
293 293 if [ "$KERNEL_BPF" = true ] ; then
294 294 set_kernel_config CONFIG_BPF_SYSCALL y
295 295 set_kernel_config CONFIG_BPF_EVENTS y
296 296 set_kernel_config CONFIG_BPF_STREAM_PARSER y
297 297 set_kernel_config CONFIG_CGROUP_BPF y
298 298 fi
299 299
300 300 # KERNEL_DEFAULT_GOV was set by user
301 301 if [ "$KERNEL_DEFAULT_GOV" != powersave ] && [ -n "$KERNEL_DEFAULT_GOV" ]; then
302 302
303 303 case "$KERNEL_DEFAULT_GOV" in
304 304 performance)
305 305 set_kernel_config CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE y
306 306 ;;
307 307 userspace)
308 308 set_kernel_config CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE y
309 309 ;;
310 310 ondemand)
311 311 set_kernel_config CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND y
312 312 ;;
313 313 conservative)
314 314 set_kernel_config CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE y
315 315 ;;
316 316 shedutil)
317 317 set_kernel_config CONFIG_CPU_FREQ_DEFAULT_GOV_SCHEDUTIL y
318 318 ;;
319 319 *)
320 320 echo "error: unsupported default cpu governor"
321 321 exit 1
322 322 ;;
323 323 esac
324 324
325 325 # unset previous default governor
326 326 unset_kernel_config CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE
327 327 fi
328 328
329 329
330 330
331 331 #Revert to previous directory
332 332 cd "${WORKDIR}" || exit
333 333
334 334 # Set kernel configuration parameters to enable qemu emulation
335 335 if [ "$ENABLE_QEMU" = true ] ; then
336 336 echo "CONFIG_FHANDLE=y" >> "${KERNEL_DIR}"/.config
337 337 echo "CONFIG_LBDAF=y" >> "${KERNEL_DIR}"/.config
338 338
339 339 if [ "$ENABLE_CRYPTFS" = true ] ; then
340 340 {
341 341 echo "CONFIG_EMBEDDED=y"
342 342 echo "CONFIG_EXPERT=y"
343 343 echo "CONFIG_DAX=y"
344 344 echo "CONFIG_MD=y"
345 345 echo "CONFIG_BLK_DEV_MD=y"
346 346 echo "CONFIG_MD_AUTODETECT=y"
347 347 echo "CONFIG_BLK_DEV_DM=y"
348 348 echo "CONFIG_BLK_DEV_DM_BUILTIN=y"
349 349 echo "CONFIG_DM_CRYPT=y"
350 350 echo "CONFIG_CRYPTO_BLKCIPHER=y"
351 351 echo "CONFIG_CRYPTO_CBC=y"
352 352 echo "CONFIG_CRYPTO_XTS=y"
353 353 echo "CONFIG_CRYPTO_SHA512=y"
354 354 echo "CONFIG_CRYPTO_MANAGER=y"
355 355 } >> "${KERNEL_DIR}"/.config
356 356 fi
357 357 fi
358 358
359 359 # Copy custom kernel configuration file
360 360 if [ -n "$KERNELSRC_USRCONFIG" ] ; then
361 361 cp "$KERNELSRC_USRCONFIG" "${KERNEL_DIR}"/.config
362 362 fi
363 363
364 364 # Set kernel configuration parameters to their default values
365 365 if [ "$KERNEL_OLDDEFCONFIG" = true ] ; then
366 366 make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" olddefconfig
367 367 fi
368 368
369 369 # Start menu-driven kernel configuration (interactive)
370 370 if [ "$KERNEL_MENUCONFIG" = true ] ; then
371 371 make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" menuconfig
372 372 fi
373 373 # end if "$KERNELSRC_CONFIG" = true
374 374 fi
375 375
376 376 # Use ccache to cross compile the kernel
377 377 if [ "$KERNEL_CCACHE" = true ] ; then
378 378 cc="ccache ${CROSS_COMPILE}gcc"
379 379 else
380 380 cc="${CROSS_COMPILE}gcc"
381 381 fi
382 382
383 383 # Cross compile kernel and dtbs
384 384 make -C "${KERNEL_DIR}" -j"${KERNEL_THREADS}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" CC="${cc}" "${KERNEL_BIN_IMAGE}" dtbs
385 385
386 386 # Cross compile kernel modules
387 387 if grep -q "CONFIG_MODULES=y" "${KERNEL_DIR}/.config" ; then
388 388 make -C "${KERNEL_DIR}" -j"${KERNEL_THREADS}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" CC="${cc}" modules
389 389 fi
390 390 # end if "$KERNELSRC_PREBUILT" = false
391 391 fi
392 392
393 393 # Check if kernel compilation was successful
394 394 if [ ! -r "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/${KERNEL_BIN_IMAGE}" ] ; then
395 395 echo "error: kernel compilation failed! (kernel image not found)"
396 396 cleanup
397 397 exit 1
398 398 fi
399 399
400 400 # Install kernel modules
401 401 if [ "$ENABLE_REDUCE" = true ] ; then
402 402 if grep -q "CONFIG_MODULES=y" "${KERNEL_DIR}/.config" ; then
403 403 make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" INSTALL_MOD_STRIP=1 INSTALL_MOD_PATH=../../.. modules_install
404 404 fi
405 405 else
406 406 if grep -q "CONFIG_MODULES=y" "${KERNEL_DIR}/.config" ; then
407 407 make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" INSTALL_MOD_PATH=../../.. modules_install
408 408 fi
409 409
410 410 # Install kernel firmware
411 411 if grep -q "^firmware_install:" "${KERNEL_DIR}/Makefile" ; then
412 412 make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" INSTALL_FW_PATH=../../../lib firmware_install
413 413 fi
414 414 fi
415 415
416 416 # Install kernel headers
417 417 if [ "$KERNEL_HEADERS" = true ] && [ "$KERNEL_REDUCE" = false ] ; then
418 418 make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" INSTALL_HDR_PATH=../.. headers_install
419 419 fi
420 420
421 421 # Prepare boot (firmware) directory
422 422 mkdir "${BOOT_DIR}"
423 423
424 424 # Get kernel release version
425 425 KERNEL_VERSION=$(cat "${KERNEL_DIR}/include/config/kernel.release")
426 426
427 427 # Copy kernel configuration file to the boot directory
428 428 install_readonly "${KERNEL_DIR}/.config" "${R}/boot/config-${KERNEL_VERSION}"
429 429
430 430 # Prepare device tree directory
431 431 mkdir "${BOOT_DIR}/overlays"
432 432
433 433 # Ensure the proper .dtb is located
434 434 if [ "$KERNEL_ARCH" = "arm" ] ; then
435 435 for dtb in "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/"*.dtb ; do
436 436 if [ -f "${dtb}" ] ; then
437 437 install_readonly "${dtb}" "${BOOT_DIR}/"
438 438 fi
439 439 done
440 440 else
441 441 for dtb in "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/broadcom/"*.dtb ; do
442 442 if [ -f "${dtb}" ] ; then
443 443 install_readonly "${dtb}" "${BOOT_DIR}/"
444 444 fi
445 445 done
446 446 fi
447 447
448 448 # Copy compiled dtb device tree files
449 449 if [ -d "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/overlays" ] ; then
450 450 for dtb in "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/overlays/"*.dtb ; do
451 451 if [ -f "${dtb}" ] ; then
452 452 install_readonly "${dtb}" "${BOOT_DIR}/overlays/"
453 453 fi
454 454 done
455 455
456 456 if [ -f "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/overlays/README" ] ; then
457 457 install_readonly "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/overlays/README" "${BOOT_DIR}/overlays/README"
458 458 fi
459 459 fi
460 460
461 461 if [ "$ENABLE_UBOOT" = false ] ; then
462 462 # Convert and copy kernel image to the boot directory
463 463 "${KERNEL_DIR}/scripts/mkknlimg" "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/${KERNEL_BIN_IMAGE}" "${BOOT_DIR}/${KERNEL_IMAGE}"
464 464 else
465 465 # Copy kernel image to the boot directory
466 466 install_readonly "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/${KERNEL_BIN_IMAGE}" "${BOOT_DIR}/${KERNEL_IMAGE}"
467 467 fi
468 468
469 469 # Remove kernel sources
470 470 if [ "$KERNEL_REMOVESRC" = true ] ; then
471 471 rm -fr "${KERNEL_DIR}"
472 472 else
473 473 # Prepare compiled kernel modules
474 474 if grep -q "CONFIG_MODULES=y" "${KERNEL_DIR}/.config" ; then
475 475 if grep -q "^modules_prepare:" "${KERNEL_DIR}/Makefile" ; then
476 476 make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" modules_prepare
477 477 fi
478 478
479 479 # Create symlinks for kernel modules
480 480 chroot_exec ln -sf /usr/src/linux "/lib/modules/${KERNEL_VERSION}/build"
481 481 chroot_exec ln -sf /usr/src/linux "/lib/modules/${KERNEL_VERSION}/source"
482 482 fi
483 483 fi
484 484
485 485 else # BUILD_KERNEL=false
486 486 if [ "$SET_ARCH" = 64 ] && { [ "$RPI_MODEL" = 3 ] || [ "$RPI_MODEL" = 3P ] ; } ; then
487 487
488 488 # Use Sakakis modified kernel if ZSWAP is active
489 489 if [ "$KERNEL_ZSWAP" = true ] || [ "$KERNEL_VIRT" = true ] || [ "$KERNEL_NF" = true ] || [ "$KERNEL_BPF" = true ] ; then
490 490 RPI3_64_KERNEL_URL="${RPI3_64_BIS_KERNEL_URL}"
491 491 fi
492 492
493 493 # Create temporary directory for dl
494 494 temp_dir=$(as_nobody mktemp -d)
495 495
496 496 # Fetch kernel dl
497 497 as_nobody wget -O "${temp_dir}"/kernel.tar.xz -c "$RPI3_64_KERNEL_URL"
498 498
499 499 #extract download
500 500 tar -xJf "${temp_dir}"/kernel.tar.xz -C "${temp_dir}"
501 501
502 502 #move extracted kernel to /boot/firmware
503 503 mkdir "${R}/boot/firmware"
504 504 cp "${temp_dir}"/boot/* "${R}"/boot/firmware/
505 505 cp -r "${temp_dir}"/lib/* "${R}"/lib/
506 506
507 507 # Remove temporary directory for kernel sources
508 508 rm -fr "${temp_dir}"
509 509
510 510 # Set permissions of the kernel sources
511 511 chown -R root:root "${R}/boot/firmware"
512 512 chown -R root:root "${R}/lib/modules"
513 513 fi
514 514
515 515 # Install Kernel from hypriot comptabile with all Raspberry PI
516 516 if [ "$SET_ARCH" = 32 ] ; then
517 517 # Create temporary directory for dl
518 518 temp_dir=$(as_nobody mktemp -d)
519 519
520 520 # Fetch kernel
521 521 as_nobody wget -O "${temp_dir}"/kernel.deb -c "$RPI_32_KERNEL_URL"
522 522
523 523 # Copy downloaded U-Boot sources
524 524 mv "${temp_dir}"/kernel.deb "${R}"/tmp/kernel.deb
525 525
526 526 # Set permissions
527 527 chown -R root:root "${R}"/tmp/kernel.deb
528 528
529 529 # Install kernel
530 530 chroot_exec dpkg -i /tmp/kernel.deb
531 531
532 532 # move /boot to /boot/firmware to fit script env.
533 533 #mkdir "${BOOT_DIR}"
534 534 mkdir "${temp_dir}"/firmware
535 535 mv "${R}"/boot/* "${temp_dir}"/firmware/
536 536 mv "${temp_dir}"/firmware "${R}"/boot/
537 537
538 538 #same for kernel headers
539 539 if [ "$KERNEL_HEADERS" = true ] ; then
540 540 # Fetch kernel header
541 541 as_nobody wget -O "${temp_dir}"/kernel-header.deb -c "$RPI_32_KERNELHEADER_URL"
542 542 mv "${temp_dir}"/kernel-header.deb "${R}"/tmp/kernel-header.deb
543 543 chown -R root:root "${R}"/tmp/kernel-header.deb
544 544 # Install kernel header
545 545 chroot_exec dpkg -i /tmp/kernel-header.deb
546 546 rm -f "${R}"/tmp/kernel-header.deb
547 547 fi
548 548
549 549 # Remove temporary directory and files
550 550 rm -fr "${temp_dir}"
551 551 rm -f "${R}"/tmp/kernel.deb
552 552 fi
553 553
554 554 # Check if kernel installation was successful
555 555 KERNEL="$(ls -1 "${R}"/boot/firmware/kernel* | sort | tail -n 1)"
556 556 if [ -z "$KERNEL" ] ; then
557 557 echo "error: kernel installation failed! (/boot/kernel* not found)"
558 558 cleanup
559 559 exit 1
560 560 fi
561 561 fi
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