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f3d8604b MJ |
1 | #!/bin/sh -exu |
2 | # | |
3 | # Copyright (C) 2016 - Michael Jeanson <mjeanson@efficios.com> | |
4 | # | |
5 | # This program is free software: you can redistribute it and/or modify | |
6 | # it under the terms of the GNU General Public License as published by | |
7 | # the Free Software Foundation, either version 3 of the License, or | |
8 | # (at your option) any later version. | |
9 | # | |
10 | # This program is distributed in the hope that it will be useful, | |
11 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | # GNU General Public License for more details. | |
14 | # | |
15 | # You should have received a copy of the GNU General Public License | |
16 | # along with this program. If not, see <http://www.gnu.org/licenses/>. | |
17 | ||
339db64d MJ |
18 | ## FUNCTIONS ## |
19 | ||
f3d8604b MJ |
20 | # Kernel version compare functions |
21 | verlte() { | |
51fa2ab3 | 22 | [ "$1" = "$(printf '%s\n%s' "$1" "$2" | sort -V | head -n1)" ] |
f3d8604b MJ |
23 | } |
24 | ||
25 | verlt() { | |
51fa2ab3 | 26 | [ "$1" = "$2" ] && return 1 || verlte "$1" "$2" |
f3d8604b MJ |
27 | } |
28 | ||
29 | vergte() { | |
51fa2ab3 | 30 | [ "$1" = "$(printf '%s\n%s' "$1" "$2" | sort -V | tail -n1)" ] |
f3d8604b MJ |
31 | } |
32 | ||
33 | vergt() { | |
51fa2ab3 | 34 | [ "$1" = "$2" ] && return 1 || vergte "$1" "$2" |
f3d8604b MJ |
35 | } |
36 | ||
339db64d | 37 | |
7e02032c MJ |
38 | prepare_lnx_sources() { |
39 | ||
40 | outdir=$1 | |
41 | ||
42 | if [ "$outdir" = "." ]; then | |
43 | koutput="" | |
44 | else | |
45 | koutput="O=\"${outdir}\"" | |
46 | fi | |
47 | ||
48 | # Generate kernel configuration | |
a1ae361e | 49 | case "$ktag" in |
7e02032c MJ |
50 | Ubuntu*) |
51 | fakeroot debian/rules clean | |
52 | fakeroot debian/rules genconfigs | |
51fa2ab3 | 53 | cp CONFIGS/"${ubuntu_config}" "${outdir}"/.config |
7e02032c MJ |
54 | ;; |
55 | *) | |
a822250c | 56 | # Que sera sera |
51fa2ab3 | 57 | make "${vanilla_config}" CC="$CC" ${koutput} |
7e02032c MJ |
58 | ;; |
59 | esac | |
60 | ||
61 | # GCC 4.8 | |
62 | sed -i "s/CONFIG_CC_STACKPROTECTOR_STRONG=y/# CONFIG_CC_STACKPROTECTOR_STRONG is not set/g" "${outdir}"/.config | |
63 | ||
64 | # Don't try to sign modules | |
65 | sed -i "s/CONFIG_MODULE_SIG=y/# CONFIG_MODULE_SIG is not set/g" "${outdir}"/.config | |
66 | ||
9ef18fa2 MJ |
67 | # Disable kernel stack frame correctness validation, introduced in 4.6.0 and currently fails |
68 | sed -i "s/CONFIG_STACK_VALIDATION=y/# CONFIG_STACK_VALIDATION is not set/g" "${outdir}"/.config | |
69 | ||
51fa2ab3 MJ |
70 | # Set required options |
71 | { | |
72 | echo "CONFIG_KPROBES=y"; | |
73 | echo "CONFIG_FTRACE=y"; | |
74 | echo "CONFIG_BLK_DEV_IO_TRACE=y"; | |
75 | echo "CONFIG_TRACEPOINTS=y"; | |
76 | echo "CONFIG_KALLSYMS_ALL=y"; | |
77 | } >> "${outdir}"/.config | |
7e02032c MJ |
78 | |
79 | ||
51fa2ab3 MJ |
80 | make "$oldconf_target" CC="$CC" ${koutput} |
81 | make modules_prepare CC="$CC" ${koutput} | |
82 | ||
83 | # Debug | |
84 | #cat "${outdir}"/.config | |
7e02032c | 85 | |
d815b018 MJ |
86 | # On powerpc this object is required to link modules |
87 | if [ "${karch}" = "powerpc" ]; then | |
88 | make arch/powerpc/lib/crtsavres.o CC="$CC" ${koutput} | |
89 | fi | |
90 | ||
a1ae361e MJ |
91 | # On arm64 this object is required to build with ftrace support |
92 | if [ "${karch}" = "arm64" ]; then | |
93 | if vergte "$KVERSION" "4.13-rc1"; then | |
94 | make arch/arm64/kernel/ftrace-mod.o CC="$CC" ${koutput} | |
95 | fi | |
96 | fi | |
97 | ||
7e02032c | 98 | # Version specific tasks |
a1ae361e | 99 | case "$ktag" in |
7e02032c MJ |
100 | Ubuntu*) |
101 | # Add Ubuntu ABI number to kernel headers, this is normally done by the packaging code | |
a1ae361e | 102 | ABINUM="$(echo "$ktag" | grep -P -o 'Ubuntu-(lts-)?.*-\K\d+(?=\..*)')" |
51fa2ab3 | 103 | echo "#define UTS_UBUNTU_RELEASE_ABI $ABINUM" >> "${outdir}"/include/generated/utsrelease.h |
7e02032c MJ |
104 | ;; |
105 | esac | |
7e02032c MJ |
106 | } |
107 | ||
108 | ||
109 | ||
339db64d MJ |
110 | build_modules() { |
111 | ||
112 | kdir="$1" | |
113 | bdir="$2" | |
114 | ||
339db64d MJ |
115 | # Enter lttng-modules source dir |
116 | cd "${LTTSRCDIR}" | |
117 | ||
118 | # kernels 3.10 to 3.10.13 and 3.11 to 3.11.2 introduce a deadlock in the | |
119 | # timekeeping subsystem. We want those build to fail. | |
a1ae361e MJ |
120 | if { vergte "$KVERSION" "3.10" && verlte "$KVERSION" "3.10.13"; } || \ |
121 | { vergte "$KVERSION" "3.11" && verlte "$KVERSION" "3.11.2"; }; then | |
339db64d MJ |
122 | |
123 | set +e | |
124 | ||
125 | # Build modules | |
51fa2ab3 | 126 | KERNELDIR="${kdir}" make -j"${NPROC}" V=1 CC="$CC" |
339db64d MJ |
127 | |
128 | # We expect this build to fail, if it doesn't, fail the job. | |
129 | if [ "$?" -eq 0 ]; then | |
e9b44189 | 130 | echo "This build should have failed." |
339db64d MJ |
131 | exit 1 |
132 | fi | |
133 | ||
134 | # We have to publish at least one file or the build will fail | |
7e02032c | 135 | echo "This kernel is broken, there is a deadlock in the timekeeping subsystem." > "${bdir}/BROKEN.txt.ko" |
339db64d MJ |
136 | |
137 | set -e | |
138 | ||
51fa2ab3 | 139 | KERNELDIR="${kdir}" make clean CC="$CC" |
7e02032c | 140 | |
339db64d MJ |
141 | else # Regular build |
142 | ||
143 | # Build modules against full kernel sources | |
51fa2ab3 | 144 | KERNELDIR="${kdir}" make -j"${NPROC}" V=1 CC="$CC" |
339db64d MJ |
145 | |
146 | # Install modules to build dir | |
51fa2ab3 | 147 | KERNELDIR="${kdir}" make INSTALL_MOD_PATH="${bdir}" modules_install CC="$CC" |
339db64d MJ |
148 | |
149 | # Clean build dir | |
51fa2ab3 | 150 | KERNELDIR="${kdir}" make clean CC="$CC" |
339db64d MJ |
151 | fi |
152 | } | |
153 | ||
154 | ||
155 | ## MAIN ## | |
156 | ||
f3d8604b MJ |
157 | # Use all CPU cores |
158 | NPROC=$(nproc) | |
159 | ||
339db64d MJ |
160 | LTTSRCDIR="${WORKSPACE}/src/lttng-modules" |
161 | LNXSRCDIR="${WORKSPACE}/src/linux" | |
162 | ||
163 | LNXBUILDDIR="${WORKSPACE}/build/linux" | |
164 | LNXHDRDIR="${WORKSPACE}/build/linux-headers" | |
165 | ||
a822250c | 166 | LTTBUILDKSRCDIR="${WORKSPACE}/build/lttng-modules-ksrc" |
339db64d MJ |
167 | LTTBUILDKHDRDIR="${WORKSPACE}/build/lttng-modules-khdr" |
168 | ||
169 | ||
7e02032c MJ |
170 | # Setup cross compile env if available |
171 | if [ "x${cross_arch:-}" != "x" ]; then | |
172 | ||
173 | case "$cross_arch" in | |
174 | "armhf") | |
175 | karch="arm" | |
176 | cross_compile="arm-linux-gnueabihf-" | |
e9b44189 | 177 | vanilla_config="allyesconfig" |
7e02032c MJ |
178 | ubuntu_config="armhf-config.flavour.generic" |
179 | ;; | |
180 | ||
181 | "arm64") | |
182 | karch="arm64" | |
183 | cross_compile="aarch64-linux-gnu-" | |
e9b44189 | 184 | vanilla_config="allyesconfig" |
7e02032c MJ |
185 | ubuntu_config="arm64-config.flavour.generic" |
186 | ;; | |
187 | ||
188 | "powerpc") | |
189 | karch="powerpc" | |
190 | cross_compile="powerpc-linux-gnu-" | |
e9b44189 | 191 | vanilla_config="ppc44x_defconfig" |
7e02032c MJ |
192 | ubuntu_config="powerpc-config.flavour.powerpc-smp" |
193 | ;; | |
194 | ||
195 | "ppc64el") | |
196 | karch="powerpc" | |
197 | cross_compile="powerpc64le-linux-gnu-" | |
e9b44189 | 198 | vanilla_config="pseries_le_defconfig" |
7e02032c MJ |
199 | ubuntu_config="ppc64el-config.flavour.generic" |
200 | ;; | |
201 | ||
202 | *) | |
51fa2ab3 | 203 | echo "Unsupported cross arch $cross_arch" |
7e02032c MJ |
204 | exit 1 |
205 | ;; | |
206 | esac | |
339db64d | 207 | |
fca23c5a MJ |
208 | # Use gcc 4.9, older kernel don't build with gcc 5 |
209 | CC="${cross_compile}gcc-4.9" | |
e9b44189 | 210 | |
7e02032c MJ |
211 | # Export variables used by Kbuild for cross compilation |
212 | export ARCH="${karch}" | |
213 | export CROSS_COMPILE="${cross_compile}" | |
339db64d | 214 | |
e0552fd7 MJ |
215 | oldconf_target="olddefconfig" |
216 | ||
7e02032c MJ |
217 | # Set arch specific values if we are not cross compiling |
218 | elif [ "x${arch:-}" != "x" ]; then | |
e9b44189 | 219 | |
7e02032c MJ |
220 | case "$arch" in |
221 | "x86-32") | |
222 | karch="x86" | |
e9b44189 | 223 | vanilla_config="allyesconfig" |
7e02032c MJ |
224 | ubuntu_config="i386-config.flavour.generic" |
225 | ;; | |
226 | ||
227 | "x86-64") | |
228 | karch="x86" | |
e9b44189 | 229 | vanilla_config="allyesconfig" |
7e02032c MJ |
230 | ubuntu_config="amd64-config.flavour.generic" |
231 | ;; | |
232 | ||
233 | "armhf") | |
234 | karch="arm" | |
e9b44189 | 235 | vanilla_config="allyesconfig" |
7e02032c MJ |
236 | ubuntu_config="armhf-config.flavour.generic" |
237 | ;; | |
238 | ||
239 | "arm64") | |
240 | karch="arm64" | |
e9b44189 | 241 | vanilla_config="allyesconfig" |
7e02032c MJ |
242 | ubuntu_config="arm64-config.flavour.generic" |
243 | ;; | |
244 | ||
245 | "powerpc") | |
246 | karch="powerpc" | |
e9b44189 | 247 | vanilla_config="allyesconfig" |
7e02032c MJ |
248 | ubuntu_config="powerpc-config.flavour.powerpc-smp" |
249 | ;; | |
250 | ||
251 | "ppc64el") | |
252 | karch="powerpc" | |
e9b44189 | 253 | vanilla_config="allyesconfig" |
7e02032c MJ |
254 | ubuntu_config="ppc64el-config.flavour.generic" |
255 | ;; | |
256 | ||
257 | *) | |
258 | echo "Unsupported arch $arch" | |
259 | exit 1 | |
260 | ;; | |
261 | esac | |
e9b44189 MJ |
262 | |
263 | # Use gcc 4.9, older kernel don't build with gcc 5 | |
264 | CC=gcc-4.9 | |
265 | ||
e0552fd7 MJ |
266 | oldconf_target="silentoldconfig" |
267 | ||
7e02032c MJ |
268 | else |
269 | echo "Not arch or cross_arch specified" | |
270 | exit 1 | |
271 | fi | |
339db64d | 272 | |
339db64d | 273 | |
b214d997 | 274 | |
339db64d MJ |
275 | |
276 | # Create build directories | |
a822250c | 277 | mkdir -p "${LNXBUILDDIR}" "${LNXHDRDIR}" "${LTTBUILDKSRCDIR}" "${LTTBUILDKHDRDIR}" |
7e02032c | 278 | |
339db64d MJ |
279 | |
280 | ||
281 | ## PREPARE DISTRO STYLE KERNEL HEADERS / DEVEL | |
282 | ||
283 | # Enter linux source dir | |
284 | cd "${LNXSRCDIR}" | |
285 | ||
a1ae361e MJ |
286 | # Get kernel version from source tree |
287 | KVERSION=$(make kernelversion) | |
288 | ||
7e02032c | 289 | prepare_lnx_sources "." |
339db64d | 290 | |
b214d997 MJ |
291 | # For RT kernels, copy version file |
292 | if [ -s localversion-rt ]; then | |
293 | cp -a localversion-rt "${LNXHDRDIR}" | |
339db64d MJ |
294 | fi |
295 | ||
b214d997 MJ |
296 | # Copy all Makefile related stuff |
297 | find . -path './include/*' -prune \ | |
298 | -o -path './scripts/*' -prune -o -type f \ | |
299 | \( -name 'Makefile*' -o -name 'Kconfig*' -o -name 'Kbuild*' -o \ | |
300 | -name '*.sh' -o -name '*.pl' -o -name '*.lds' \) \ | |
301 | -print | cpio -pd --preserve-modification-time "${LNXHDRDIR}" | |
339db64d | 302 | |
b214d997 MJ |
303 | # Copy base scripts and include dirs |
304 | cp -a scripts include "${LNXHDRDIR}" | |
339db64d | 305 | |
b214d997 | 306 | # Copy arch includes |
51fa2ab3 MJ |
307 | (find arch -name include -type d -print0 | \ |
308 | xargs -0 -n1 -i: find : -type f) | \ | |
b214d997 | 309 | cpio -pd --preserve-modification-time "${LNXHDRDIR}" |
339db64d | 310 | |
b214d997 | 311 | # Copy arch scripts |
51fa2ab3 MJ |
312 | (find arch -name scripts -type d -print0 | \ |
313 | xargs -0 -n1 -i: find : -type f) | \ | |
b214d997 | 314 | cpio -pd --preserve-modification-time "${LNXHDRDIR}" |
339db64d | 315 | |
b214d997 | 316 | # Cleanup scripts |
339db64d MJ |
317 | rm -f "${LNXHDRDIR}/scripts/*.o" |
318 | rm -f "${LNXHDRDIR}/scripts/*/*.o" | |
319 | ||
b214d997 | 320 | # On powerpc this object is required to link modules |
339db64d MJ |
321 | if [ "${karch}" = "powerpc" ]; then |
322 | cp -a --parents arch/powerpc/lib/crtsavres.[So] "${LNXHDRDIR}/" | |
323 | fi | |
324 | ||
a1ae361e MJ |
325 | # On arm64 this object is required to build with ftrace support |
326 | if [ "${karch}" = "arm64" ]; then | |
327 | if vergte "$KVERSION" "4.13-rc1"; then | |
328 | cp -a --parents arch/arm64/kernel/ftrace-mod.[So] "${LNXHDRDIR}/" | |
329 | fi | |
330 | fi | |
331 | ||
b214d997 MJ |
332 | # Copy modules related stuff, if available |
333 | if [ -s Module.symvers ]; then | |
334 | cp Module.symvers "${LNXHDRDIR}" | |
335 | fi | |
336 | ||
337 | if [ -s System.map ]; then | |
338 | cp System.map "${LNXHDRDIR}" | |
339 | fi | |
340 | ||
341 | if [ -s Module.markers ]; then | |
342 | cp Module.markers "${LNXHDRDIR}" | |
339db64d MJ |
343 | fi |
344 | ||
b214d997 MJ |
345 | # Copy config file |
346 | cp .config "${LNXHDRDIR}" | |
339db64d MJ |
347 | |
348 | # Make sure the Makefile and version.h have a matching timestamp so that | |
349 | # external modules can be built | |
350 | if [ -s "${LNXHDRDIR}/include/generated/uapi/linux/version.h" ]; then | |
351 | touch -r "${LNXHDRDIR}/Makefile" "${LNXHDRDIR}/include/generated/uapi/linux/version.h" | |
352 | elif [ -s "${LNXHDRDIR}/include/linux/version.h" ]; then | |
353 | touch -r "${LNXHDRDIR}/Makefile" "${LNXHDRDIR}/include/linux/version.h" | |
354 | else | |
355 | echo "Missing version.h" | |
356 | exit 1 | |
357 | fi | |
358 | touch -r "${LNXHDRDIR}/.config" "${LNXHDRDIR}/include/generated/autoconf.h" | |
359 | ||
360 | # Copy .config to include/config/auto.conf so "make prepare" is unnecessary. | |
361 | cp "${LNXHDRDIR}/.config" "${LNXHDRDIR}/include/config/auto.conf" | |
362 | ||
363 | ||
364 | ||
365 | ||
366 | ## PREPARE FULL LINUX SOURCE TREE | |
f3d8604b MJ |
367 | |
368 | # Enter linux source dir | |
369 | cd "${LNXSRCDIR}" | |
370 | ||
339db64d | 371 | # Make sure linux source dir is clean |
7e02032c | 372 | git clean -xdf |
f3d8604b | 373 | |
7e02032c | 374 | prepare_lnx_sources "${LNXBUILDDIR}" |
b214d997 | 375 | |
f3d8604b | 376 | |
7e02032c | 377 | ## BUILD modules |
f3d8604b | 378 | |
339db64d | 379 | # Build modules against full kernel sources |
a822250c | 380 | build_modules "${LNXBUILDDIR}" "${LTTBUILDKSRCDIR}" |
f3d8604b | 381 | |
339db64d MJ |
382 | # Build modules against kernel headers |
383 | build_modules "${LNXHDRDIR}" "${LTTBUILDKHDRDIR}" | |
f3d8604b | 384 | |
b214d997 | 385 | # Make sure modules were built |
a822250c MJ |
386 | tree "${LTTBUILDKSRCDIR}" |
387 | if [ "x$(find "${LTTBUILDKSRCDIR}" -name '*.ko*' -printf yes -quit)" != "xyes" ]; then | |
7e02032c MJ |
388 | echo "No modules built!" |
389 | exit 1 | |
390 | fi | |
391 | ||
a822250c MJ |
392 | tree "${LTTBUILDKHDRDIR}" |
393 | if [ "x$(find "${LTTBUILDKHDRDIR}" -name '*.ko*' -printf yes -quit)" != "xyes" ]; then | |
7e02032c MJ |
394 | echo "No modules built!" |
395 | exit 1 | |
396 | fi | |
b214d997 | 397 | |
f3d8604b | 398 | # EOF |