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51c9c62d | 1 | #!/bin/bash |
f3d8604b | 2 | # |
51c9c62d | 3 | # Copyright (C) 2016-2019 Michael Jeanson <mjeanson@efficios.com> |
f3d8604b MJ |
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 | ||
51c9c62d MJ |
18 | set -exu |
19 | ||
39961776 | 20 | # Parameters |
2456f978 | 21 | arch=${arch:-amd64} |
39961776 MJ |
22 | cross_arch=${cross_arch:-} |
23 | ktag=${ktag:-} | |
5a196804 MJ |
24 | kgitrepo=${kgitrepo:-} |
25 | mversion=${mversion:-} | |
26 | mgitrepo=${mgitrepo:-} | |
39961776 MJ |
27 | |
28 | ||
339db64d MJ |
29 | ## FUNCTIONS ## |
30 | ||
f3d8604b MJ |
31 | # Kernel version compare functions |
32 | verlte() { | |
51fa2ab3 | 33 | [ "$1" = "$(printf '%s\n%s' "$1" "$2" | sort -V | head -n1)" ] |
f3d8604b MJ |
34 | } |
35 | ||
36 | verlt() { | |
28b10e79 | 37 | # shellcheck disable=SC2015 |
51fa2ab3 | 38 | [ "$1" = "$2" ] && return 1 || verlte "$1" "$2" |
f3d8604b MJ |
39 | } |
40 | ||
41 | vergte() { | |
51fa2ab3 | 42 | [ "$1" = "$(printf '%s\n%s' "$1" "$2" | sort -V | tail -n1)" ] |
f3d8604b MJ |
43 | } |
44 | ||
45 | vergt() { | |
28b10e79 | 46 | # shellcheck disable=SC2015 |
51fa2ab3 | 47 | [ "$1" = "$2" ] && return 1 || vergte "$1" "$2" |
f3d8604b MJ |
48 | } |
49 | ||
339db64d | 50 | |
5a196804 MJ |
51 | git_clone_modules_sources() { |
52 | mkdir -p "$MODULES_GIT_DIR" | |
28b10e79 MJ |
53 | |
54 | # If the version starts with "refs/", checkout the specific git ref, otherwise treat it | |
55 | # as a branch name. | |
56 | if [ "${mversion:0:5}" = "refs/" ]; then | |
57 | git clone --no-tags --depth=1 "${mgitrepo}" "$MODULES_GIT_DIR" | |
58 | (cd "$MODULES_GIT_DIR" && git fetch origin "${mversion}" && git checkout FETCH_HEAD) | |
59 | else | |
60 | git clone --no-tags --depth=1 -b "${mversion}" "${mgitrepo}" "$MODULES_GIT_DIR" | |
61 | fi | |
5a196804 MJ |
62 | } |
63 | ||
64 | # Checkout a shallow kernel tree of the specified tag | |
65 | git_clone_linux_sources() { | |
66 | mkdir -p "$LINUX_GIT_DIR" | |
67 | git clone --depth=1 -b "${ktag}" --reference "$LINUX_GIT_REF_REPO_DIR" "${kgitrepo}" "$LINUX_GIT_DIR" | |
68 | } | |
7e02032c | 69 | |
7e02032c | 70 | |
5a196804 MJ |
71 | # Export the kernel sources from the git repo |
72 | git_export_linux_sources() { | |
73 | cd "$LINUX_GIT_DIR" | |
74 | git archive "${ktag}" | tar -x -C "$LINUX_SRCOBJ_DIR" | |
75 | } | |
76 | ||
77 | ||
78 | # Upload the tar archive to the object store | |
79 | upload_archive_obj() { | |
80 | s3cmd -c "$WORKSPACE/.s3cfg" put "$WORKSPACE/$obj_name" "$obj_url_prefix/" | |
81 | rm -f "$WORKSPACE/$obj_name" | |
82 | } | |
83 | ||
84 | ||
85 | extract_archive_obj() { | |
86 | tar -xf "$WORKSPACE/$obj_name" -C "$LINUX_OBJ_DIR" | |
87 | rm -f "$WORKSPACE/$obj_name" | |
88 | } | |
89 | ||
90 | ||
91 | tar_archive_obj() { | |
92 | cd "$LINUX_OBJ_DIR" | |
93 | tar -cf "$WORKSPACE/$obj_name" -I pbzip2 . | |
94 | cd - | |
95 | } | |
96 | ||
97 | # Find the most recent GCC version supported by the kernel sources | |
98 | select_compiler() { | |
99 | local selected_cc | |
100 | ||
101 | cd "$LINUX_SRCOBJ_DIR" | |
102 | ||
103 | kversion=$(make -s kernelversion) | |
104 | ||
105 | set +e | |
106 | ||
2456f978 | 107 | for cc in gcc-8 gcc-5 gcc-4.8; do |
5a196804 MJ |
108 | if "${CROSS_COMPILE:-}${cc}" -I include/ -D__LINUX_COMPILER_H -D__LINUX_COMPILER_TYPES_H -E include/linux/compiler-gcc.h; then |
109 | selected_cc="$cc" | |
110 | break | |
111 | fi | |
112 | done | |
113 | ||
114 | set -e | |
115 | ||
116 | if [ "x$selected_cc" = "x" ]; then | |
117 | echo "Found no suitable compiler." | |
118 | exit 1 | |
119 | fi | |
120 | ||
1d5a0a3c MJ |
121 | # Force gcc-4.8 for kernels before 3.18 |
122 | if { verlt "$kversion" "3.18"; }; then | |
23db2292 | 123 | selected_cc=gcc-4.8 |
7e02032c MJ |
124 | fi |
125 | ||
425e4992 MJ |
126 | if [ "$selected_cc" != "gcc-4.8" ]; then |
127 | # Older kernel Makefiles do not expect the compiler to default to PIE | |
128 | KAFLAGS="-fno-pie" | |
c45b04df | 129 | KCFLAGS="-fno-pie -no-pie -fno-stack-protector" |
425e4992 MJ |
130 | KCPPFLAGS="-fno-pie" |
131 | export KAFLAGS KCFLAGS KCPPFLAGS | |
132 | fi | |
133 | ||
5a196804 | 134 | export CC="${CROSS_COMPILE:-}${selected_cc}" |
1d5a0a3c | 135 | export HOSTCC="${selected_cc}" |
5a196804 MJ |
136 | |
137 | cd - | |
138 | } | |
139 | ||
140 | ||
141 | build_linux_kernel() { | |
142 | cd "$LINUX_SRCOBJ_DIR" | |
143 | ||
144 | kversion=$(make -s kernelversion) | |
145 | ||
7e02032c | 146 | # Generate kernel configuration |
a1ae361e | 147 | case "$ktag" in |
7e02032c | 148 | Ubuntu*) |
39961776 | 149 | if [ "${cross_arch}" = "powerpc" ]; then |
5a196804 | 150 | if vergte "${kversion}" "4.10"; then |
39961776 MJ |
151 | echo "Ubuntu removed big endian powerpc configuration from kernel >= 4.10. Don't try to build it." |
152 | exit 0 | |
153 | fi | |
154 | fi | |
af101606 MJ |
155 | |
156 | # Disable riscv64 config generation, we don't have a toolchain on bionic | |
157 | sed -i 's/riscv64 //' debian.master/etc/kernelconfig | |
158 | ||
073dc82c MJ |
159 | # Hack for kernel Ubuntu-hwe-5.8 |
160 | if [ ! -f "debian/compat" ]; then | |
161 | echo "10" > "debian/compat" | |
162 | fi | |
163 | ||
a46abb0a MJ |
164 | fakeroot debian/rules clean KW_DEFCONFIG_DIR=. |
165 | fakeroot debian/rules genconfigs KW_DEFCONFIG_DIR=. | |
5a196804 | 166 | cp CONFIGS/"${ubuntu_config}" .config |
7e02032c | 167 | ;; |
c45b04df | 168 | |
7e02032c | 169 | *) |
16844a6d MJ |
170 | # Force 32bit build on i386, default is 64bit |
171 | if [ "$arch" = "i386" ]; then | |
5a196804 MJ |
172 | export ARCH="i386" |
173 | fi | |
174 | ||
175 | # allyesconfig is mostly broken for kernels of the 2.6 series | |
176 | if verlt "$kversion" "3.0"; then | |
177 | vanilla_config="defconfig" | |
7a76a4d0 MJ |
178 | fi |
179 | ||
5a196804 | 180 | make "${vanilla_config}" |
7e02032c MJ |
181 | ;; |
182 | esac | |
183 | ||
53b51a15 | 184 | # oldnoconfig was renamed in 4.19 |
5a196804 | 185 | if vergte "$kversion" "4.19"; then |
53b51a15 | 186 | update_conf_target="olddefconfig" |
5a196804 | 187 | else |
53b51a15 | 188 | update_conf_target="oldnoconfig" |
5a196804 MJ |
189 | fi |
190 | ||
191 | # Fix 'defined(@array)' was removed from recent perl | |
192 | if [ -f "kernel/timeconst.pl" ]; then | |
193 | sed -i 's/defined(\@\(.*\))/@\1/' kernel/timeconst.pl | |
194 | fi | |
195 | ||
196 | # Fix syntax of inline assembly which is confused with C++11 raw strings on gcc >= 5 | |
53b51a15 | 197 | if [ "$HOSTCC" != "gcc-4.8" ]; then |
5a196804 MJ |
198 | if [ -f "arch/x86/kvm/svm.c" ]; then |
199 | sed -i 's/ R"/ R "/g; s/"R"/" R "/g' arch/x86/kvm/svm.c | |
200 | fi | |
201 | ||
202 | if [ -f "arch/x86/kvm/vmx.c" ]; then | |
203 | sed -i 's/ R"/ R "/g; s/"R"/" R "/g' arch/x86/kvm/vmx.c | |
204 | fi | |
205 | fi | |
206 | ||
53b51a15 MJ |
207 | # Newer binutils don't accept 3 operand 'cmp' instructions on ppc64 |
208 | # Convert them to 'cmpw' which was previously done silently | |
209 | if verlt "$kversion" "4.9"; then | |
210 | find arch/powerpc/ -name "*.S" -print0 | xargs -0 sed -i "s/\(cmp\)\(\s\+[a-zA-Z0-9]\+,\s*[a-zA-Z0-9]\+,\s*[a-zA-Z0-9]\+\)/cmpw\2/" | |
211 | find arch/powerpc/ -name "*.S" -print0 | xargs -0 sed -i "s/\(cmpli\)\(\s\+[a-zA-Z0-9]\+,\s*[a-zA-Z0-9]\+,\s*[a-zA-Z0-9]\+\)/cmplwi\2/" | |
212 | sed -i "s/\$pie \-o \"\$ofile\"/\$pie --no-dynamic-linker -o \"\$ofile\"/" arch/powerpc/boot/wrapper | |
213 | fi | |
214 | ||
5a196804 MJ |
215 | # Fix a typo in v2.6.36.x |
216 | if [ -f "arch/x86/kernel/entry_64.S" ]; then | |
217 | sed -i 's/END(do_hypervisor_callback)/END(xen_do_hypervisor_callback)/' arch/x86/kernel/entry_64.S | |
218 | fi | |
219 | ||
53b51a15 MJ |
220 | # Fix compiler switch in vdso Makefile for 2.6.36 to 2.6.36.2 |
221 | if { vergte "$kversion" "2.6.36" && verlte "$kversion" "2.6.36.3"; }; then | |
222 | sed -i 's/-m elf_x86_64/-m64/' arch/x86/vdso/Makefile | |
223 | sed -i 's/-m elf_i386/-m32/' arch/x86/vdso/Makefile | |
224 | fi | |
225 | ||
5a196804 MJ |
226 | # Fix kernel < 3.0 with gcc >= 4.7 |
227 | if verlt "$kversion" "3.0"; then | |
228 | sed -i '/linux\/compiler.h/a #include <linux\/linkage.h> \/* For asmregparm *\/' arch/x86/include/asm/ptrace.h | |
229 | sed -i 's/extern long syscall_trace_enter/extern asmregparm long syscall_trace_enter/' arch/x86/include/asm/ptrace.h | |
230 | sed -i 's/extern void syscall_trace_leave/extern asmregparm void syscall_trace_leave/' arch/x86/include/asm/ptrace.h | |
231 | echo "header-y += linkage.h" >> include/linux/Kbuild | |
232 | fi | |
233 | ||
7e02032c | 234 | # GCC 4.8 |
53b51a15 MJ |
235 | if [ "$HOSTCC" == "gcc-4.8" ]; then |
236 | scripts/config --disable CONFIG_CC_STACKPROTECTOR_STRONG | |
237 | fi | |
7e02032c MJ |
238 | |
239 | # Don't try to sign modules | |
53b51a15 | 240 | scripts/config --disable CONFIG_MODULE_SIG |
7e02032c | 241 | |
9ef18fa2 | 242 | # Disable kernel stack frame correctness validation, introduced in 4.6.0 and currently fails |
53b51a15 | 243 | scripts/config --disable CONFIG_STACK_VALIDATION |
5a196804 MJ |
244 | |
245 | # Cause problems with inline assembly on i386 | |
53b51a15 | 246 | scripts/config --disable CONFIG_DEBUG_SECTION_MISMATCH |
5a196804 | 247 | |
1d5a0a3c | 248 | # Don't build samples, they are broken on some kernel releases |
53b51a15 MJ |
249 | scripts/config --disable CONFIG_SAMPLES |
250 | scripts/config --disable CONFIG_BUILD_DOCSRC | |
c45b04df MJ |
251 | |
252 | # Disable kcov | |
53b51a15 | 253 | scripts/config --disable CONFIG_KCOV |
c45b04df MJ |
254 | |
255 | # Broken on some RT kernels | |
53b51a15 | 256 | scripts/config --disable CONFIG_HYPERV |
1d5a0a3c | 257 | |
1e300ea9 | 258 | # Broken drivers |
53b51a15 MJ |
259 | scripts/config --disable CONFIG_RAPIDIO_TSI721 |
260 | scripts/config --disable CONFIG_SGI_XP | |
261 | scripts/config --disable CONFIG_MFD_WM8994 | |
262 | scripts/config --disable CONFIG_DRM_RADEON | |
263 | scripts/config --disable CONFIG_SND_SOC_WM5100 | |
1e300ea9 | 264 | |
5a196804 MJ |
265 | # IGBVF won't build with recent gcc on 2.6.38.x |
266 | if { vergte "$kversion" "2.6.37" && verlt "$kversion" "2.6.38"; }; then | |
53b51a15 | 267 | scripts/config --disable CONFIG_IGBVF |
5a196804 | 268 | fi |
9ef18fa2 | 269 | |
51fa2ab3 | 270 | # Set required options |
53b51a15 MJ |
271 | scripts/config --enable CONFIG_TRACEPOINTS |
272 | scripts/config --enable CONFIG_KALLSYMS | |
273 | scripts/config --enable CONFIG_HIGH_RES_TIMERS | |
274 | scripts/config --enable CONFIG_KPROBES | |
275 | scripts/config --enable CONFIG_FTRACE | |
276 | scripts/config --enable CONFIG_BLK_DEV_IO_TRACE | |
277 | scripts/config --enable CONFIG_KALLSYMS_ALL | |
278 | scripts/config --enable CONFIG_HAVE_SYSCALL_TRACEPOINTS | |
279 | scripts/config --enable CONFIG_PERF_EVENTS | |
280 | scripts/config --enable CONFIG_EVENT_TRACING | |
281 | scripts/config --enable CONFIG_KRETPROBES | |
7e02032c | 282 | |
1d28ffce MJ |
283 | # FIXME: disable objtool on vmlinux, it OOMs on allyesconfig |
284 | sed -i 's/objtool_link vmlinux.o//' scripts/link-vmlinux.sh || true | |
285 | ||
7a76a4d0 | 286 | # Debug |
5a196804 MJ |
287 | #cat .config |
288 | ||
289 | make "$update_conf_target" CC="$CC" | |
290 | make -j"$NPROC" CC="$CC" | |
291 | ||
c45b04df | 292 | krelease=$(make -s kernelrelease CC="$CC") |
5a196804 MJ |
293 | |
294 | # Save the kernel and modules | |
295 | mkdir -p "$LINUX_INSTOBJ_DIR/boot" | |
53b51a15 | 296 | make INSTALL_MOD_PATH="$LINUX_INSTOBJ_DIR" INSTALL_MOD_STRIP=1 modules_install CC="$CC" |
f4c112e8 | 297 | make INSTALL_MOD_PATH="$LINUX_INSTOBJ_DIR" INSTALL_PATH="$LINUX_INSTOBJ_DIR/boot" install CC="$CC" |
5a196804 MJ |
298 | rm -f "$LINUX_INSTOBJ_DIR/lib/modules/${krelease}/source" "$LINUX_INSTOBJ_DIR/lib/modules/${krelease}/build" |
299 | ln -s ../../../../sources "$LINUX_INSTOBJ_DIR/lib/modules/${krelease}/source" | |
300 | ln -s ../../../../sources "$LINUX_INSTOBJ_DIR/lib/modules/${krelease}/source" | |
301 | } | |
302 | ||
303 | ||
304 | extract_distro_headers() { | |
305 | ||
306 | # Enter linux source dir | |
307 | cd "${LINUX_SRCOBJ_DIR}" | |
308 | ||
309 | ||
310 | # For RT kernels, copy version file | |
311 | if [ -s localversion-rt ]; then | |
312 | cp -a localversion-rt "${LINUX_HDROBJ_DIR}" | |
313 | fi | |
314 | ||
315 | # Copy all Makefile related stuff | |
316 | find . -path './include/*' -prune \ | |
317 | -o -path './scripts/*' -prune -o -type f \ | |
318 | \( -name 'Makefile*' -o -name 'Kconfig*' -o -name 'Kbuild*' -o \ | |
319 | -name '*.sh' -o -name '*.pl' -o -name '*.lds' \) \ | |
320 | -print | cpio -pd --preserve-modification-time "${LINUX_HDROBJ_DIR}" | |
321 | ||
322 | # Copy base scripts and include dirs | |
323 | cp -a scripts include "${LINUX_HDROBJ_DIR}" | |
7e02032c | 324 | |
5a196804 MJ |
325 | # Copy arch includes |
326 | (find arch -name include -type d -print0 | \ | |
327 | xargs -0 -n1 -i: find : -type f) | \ | |
328 | cpio -pd --preserve-modification-time "${LINUX_HDROBJ_DIR}" | |
329 | ||
330 | # Copy arch scripts | |
331 | (find arch -name scripts -type d -print0 | \ | |
332 | xargs -0 -n1 -i: find : -type f) | \ | |
333 | cpio -pd --preserve-modification-time "${LINUX_HDROBJ_DIR}" | |
334 | ||
335 | # Cleanup scripts | |
336 | rm -f "${LINUX_HDROBJ_DIR}/scripts/*.o" | |
337 | rm -f "${LINUX_HDROBJ_DIR}/scripts/*/*.o" | |
338 | ||
04873cc3 | 339 | # On powerpc 32bits this object is required to link modules |
5a196804 | 340 | if [ "${karch}" = "powerpc" ]; then |
10528202 MJ |
341 | if [ "x$(scripts/config -s CONFIG_PPC64)" = "xy" ] && vergte "${kversion}" "5.4"; then |
342 | : | |
343 | else | |
04873cc3 MJ |
344 | cp -a --parents arch/powerpc/lib/crtsavres.[So] "${LINUX_HDROBJ_DIR}/" |
345 | fi | |
5a196804 MJ |
346 | fi |
347 | ||
348 | # On arm64 between 4.13 and 1.15 this object is required to build with ftrace support | |
349 | if [ "${karch}" = "arm64" ]; then | |
350 | if [ -f "arch/arm64/kernel/ftrace-mod.S" ]; then | |
351 | cp -a --parents arch/arm64/kernel/ftrace-mod.[So] "${LINUX_HDROBJ_DIR}/" | |
352 | fi | |
353 | fi | |
354 | ||
355 | # Newer kernels need objtool to build modules when CONFIG_STACK_VALIDATION=y | |
356 | if [ -f tools/objtool/objtool ]; then | |
357 | cp -a --parents tools/objtool/objtool "${LINUX_HDROBJ_DIR}/" | |
358 | fi | |
359 | ||
360 | if [ -f "arch/x86/kernel/macros.s" ]; then | |
361 | cp -a --parents arch/x86/kernel/macros.s "${LINUX_HDROBJ_DIR}/" | |
362 | fi | |
363 | ||
364 | # Copy modules related stuff, if available | |
365 | if [ -s Module.symvers ]; then | |
366 | cp Module.symvers "${LINUX_HDROBJ_DIR}" | |
367 | fi | |
368 | ||
369 | if [ -s System.map ]; then | |
370 | cp System.map "${LINUX_HDROBJ_DIR}" | |
371 | fi | |
372 | ||
373 | if [ -s Module.markers ]; then | |
374 | cp Module.markers "${LINUX_HDROBJ_DIR}" | |
375 | fi | |
376 | ||
377 | # Copy config file | |
378 | cp .config "${LINUX_HDROBJ_DIR}" | |
379 | ||
380 | # Make sure the Makefile and version.h have a matching timestamp so that | |
381 | # external modules can be built | |
382 | if [ -s "${LINUX_HDROBJ_DIR}/include/generated/uapi/linux/version.h" ]; then | |
383 | touch -r "${LINUX_HDROBJ_DIR}/Makefile" "${LINUX_HDROBJ_DIR}/include/generated/uapi/linux/version.h" | |
384 | elif [ -s "${LINUX_HDROBJ_DIR}/include/linux/version.h" ]; then | |
385 | touch -r "${LINUX_HDROBJ_DIR}/Makefile" "${LINUX_HDROBJ_DIR}/include/linux/version.h" | |
386 | else | |
387 | echo "Missing version.h" | |
388 | exit 1 | |
389 | fi | |
390 | touch -r "${LINUX_HDROBJ_DIR}/.config" "${LINUX_HDROBJ_DIR}/include/generated/autoconf.h" | |
391 | ||
392 | # Copy .config to include/config/auto.conf so "make prepare" is unnecessary. | |
393 | cp "${LINUX_HDROBJ_DIR}/.config" "${LINUX_HDROBJ_DIR}/include/config/auto.conf" | |
394 | ||
395 | # Finally clean the object files from the full source tree | |
396 | make clean | |
397 | ||
398 | # And regen the modules support files | |
399 | make modules_prepare CC="$CC" | |
51fa2ab3 | 400 | |
04873cc3 | 401 | # On powerpc 32bits this object is required to link modules |
d815b018 | 402 | if [ "${karch}" = "powerpc" ]; then |
10528202 MJ |
403 | if [ "x$(scripts/config -s CONFIG_PPC64)" = "xy" ] && vergte "${kversion}" "5.4"; then |
404 | : | |
405 | else | |
04873cc3 MJ |
406 | make arch/powerpc/lib/crtsavres.o CC="$CC" |
407 | fi | |
d815b018 MJ |
408 | fi |
409 | ||
7a76a4d0 | 410 | # On arm64 between 4.13 and 4.15 this object is required to build with ftrace support |
a1ae361e | 411 | if [ "${karch}" = "arm64" ]; then |
c236528e | 412 | if [ -f "arch/arm64/kernel/ftrace-mod.S" ]; then |
5a196804 | 413 | make arch/arm64/kernel/ftrace-mod.o CC="$CC" |
a1ae361e MJ |
414 | fi |
415 | fi | |
416 | ||
7e02032c | 417 | # Version specific tasks |
a1ae361e | 418 | case "$ktag" in |
7e02032c MJ |
419 | Ubuntu*) |
420 | # Add Ubuntu ABI number to kernel headers, this is normally done by the packaging code | |
a1ae361e | 421 | ABINUM="$(echo "$ktag" | grep -P -o 'Ubuntu-(lts-)?.*-\K\d+(?=\..*)')" |
5a196804 MJ |
422 | echo "#define UTS_UBUNTU_RELEASE_ABI $ABINUM" >> include/generated/utsrelease.h |
423 | echo "#define UTS_UBUNTU_RELEASE_ABI $ABINUM" >> "${LINUX_HDROBJ_DIR}/include/generated/utsrelease.h" | |
7e02032c MJ |
424 | ;; |
425 | esac | |
7e02032c MJ |
426 | } |
427 | ||
428 | ||
339db64d MJ |
429 | build_modules() { |
430 | ||
5a196804 MJ |
431 | local kdir="$1" |
432 | local outdir="$2" | |
433 | local kversion | |
434 | ||
435 | kversion=$(make -C "$LINUX_HDROBJ_DIR" -s kernelversion) | |
339db64d | 436 | |
2456f978 MJ |
437 | # Try to catch some compatibility problems by turning some |
438 | # warnings into errors. | |
999a2aa0 | 439 | #export KCFLAGS="$KCFLAGS -Wall -Werror" |
2456f978 | 440 | |
339db64d | 441 | # Enter lttng-modules source dir |
5a196804 | 442 | cd "${MODULES_GIT_DIR}" |
339db64d MJ |
443 | |
444 | # kernels 3.10 to 3.10.13 and 3.11 to 3.11.2 introduce a deadlock in the | |
445 | # timekeeping subsystem. We want those build to fail. | |
5a196804 MJ |
446 | if { vergte "$kversion" "3.10" && verlte "$kversion" "3.10.13"; } || \ |
447 | { vergte "$kversion" "3.11" && verlte "$kversion" "3.11.2"; }; then | |
339db64d MJ |
448 | |
449 | set +e | |
450 | ||
451 | # Build modules | |
51fa2ab3 | 452 | KERNELDIR="${kdir}" make -j"${NPROC}" V=1 CC="$CC" |
0f71a764 | 453 | ret=$? |
339db64d | 454 | |
5a196804 MJ |
455 | set -e |
456 | ||
339db64d | 457 | # We expect this build to fail, if it doesn't, fail the job. |
0f71a764 | 458 | if [ "$ret" -eq 0 ]; then |
e9b44189 | 459 | echo "This build should have failed." |
339db64d MJ |
460 | exit 1 |
461 | fi | |
462 | ||
463 | # We have to publish at least one file or the build will fail | |
5a196804 | 464 | echo "This kernel is broken, there is a deadlock in the timekeeping subsystem." > "${outdir}/BROKEN.txt.ko" |
339db64d | 465 | |
5a196804 | 466 | KERNELDIR="${kdir}" make clean |
7e02032c | 467 | |
339db64d MJ |
468 | else # Regular build |
469 | ||
470 | # Build modules against full kernel sources | |
51fa2ab3 | 471 | KERNELDIR="${kdir}" make -j"${NPROC}" V=1 CC="$CC" |
339db64d MJ |
472 | |
473 | # Install modules to build dir | |
5a196804 | 474 | KERNELDIR="${kdir}" make INSTALL_MOD_PATH="${outdir}" modules_install |
339db64d MJ |
475 | |
476 | # Clean build dir | |
5a196804 | 477 | KERNELDIR="${kdir}" make clean |
339db64d MJ |
478 | fi |
479 | } | |
480 | ||
481 | ||
482 | ## MAIN ## | |
483 | ||
f3d8604b MJ |
484 | # Use all CPU cores |
485 | NPROC=$(nproc) | |
486 | ||
5a196804 MJ |
487 | MODULES_GIT_DIR="${WORKSPACE}/src/lttng-modules" |
488 | LINUX_GIT_DIR="${WORKSPACE}/src/linux" | |
339db64d | 489 | |
5a196804 MJ |
490 | LINUX_OBJ_DIR="${WORKSPACE}/linux" |
491 | LINUX_SRCOBJ_DIR="${LINUX_OBJ_DIR}/sources" | |
492 | LINUX_HDROBJ_DIR="${LINUX_OBJ_DIR}/headers" | |
493 | LINUX_INSTOBJ_DIR="${LINUX_OBJ_DIR}/install" | |
339db64d | 494 | |
5a196804 MJ |
495 | MODULES_OUTPUT_KSRC_DIR="${WORKSPACE}/build/lttng-modules-ksrc" |
496 | MODULES_OUTPUT_KHDR_DIR="${WORKSPACE}/build/lttng-modules-khdr" | |
339db64d | 497 | |
5a196804 MJ |
498 | LINUX_GIT_REF_REPO_DIR="$HOME/gitcache/linux-stable.git/" |
499 | ||
500 | OBJ_STORE_URL="s3://jenkins" | |
501 | ||
502 | cd "$WORKSPACE" | |
503 | ||
504 | # Create build directories | |
505 | mkdir -p "${LINUX_SRCOBJ_DIR}" "${LINUX_HDROBJ_DIR}" "${LINUX_INSTOBJ_DIR}" "${MODULES_OUTPUT_KSRC_DIR}" "${MODULES_OUTPUT_KHDR_DIR}" | |
506 | ||
507 | git_clone_modules_sources | |
339db64d | 508 | |
7e02032c | 509 | # Setup cross compile env if available |
39961776 | 510 | if [ "x${cross_arch}" != "x" ]; then |
7e02032c MJ |
511 | |
512 | case "$cross_arch" in | |
513 | "armhf") | |
514 | karch="arm" | |
515 | cross_compile="arm-linux-gnueabihf-" | |
53b51a15 | 516 | vanilla_config="imx_v6_v7_defconfig" |
7e02032c MJ |
517 | ubuntu_config="armhf-config.flavour.generic" |
518 | ;; | |
519 | ||
520 | "arm64") | |
521 | karch="arm64" | |
522 | cross_compile="aarch64-linux-gnu-" | |
53b51a15 | 523 | vanilla_config="defconfig" |
7e02032c MJ |
524 | ubuntu_config="arm64-config.flavour.generic" |
525 | ;; | |
526 | ||
527 | "powerpc") | |
528 | karch="powerpc" | |
529 | cross_compile="powerpc-linux-gnu-" | |
e9b44189 | 530 | vanilla_config="ppc44x_defconfig" |
7e02032c MJ |
531 | ubuntu_config="powerpc-config.flavour.powerpc-smp" |
532 | ;; | |
533 | ||
534 | "ppc64el") | |
535 | karch="powerpc" | |
536 | cross_compile="powerpc64le-linux-gnu-" | |
e9b44189 | 537 | vanilla_config="pseries_le_defconfig" |
7e02032c MJ |
538 | ubuntu_config="ppc64el-config.flavour.generic" |
539 | ;; | |
540 | ||
541 | *) | |
51fa2ab3 | 542 | echo "Unsupported cross arch $cross_arch" |
7e02032c MJ |
543 | exit 1 |
544 | ;; | |
545 | esac | |
339db64d | 546 | |
7e02032c MJ |
547 | # Export variables used by Kbuild for cross compilation |
548 | export ARCH="${karch}" | |
549 | export CROSS_COMPILE="${cross_compile}" | |
339db64d | 550 | |
7e02032c | 551 | # Set arch specific values if we are not cross compiling |
39961776 | 552 | elif [ "x${arch}" != "x" ]; then |
e9b44189 | 553 | |
7e02032c | 554 | case "$arch" in |
16844a6d | 555 | "i386") |
7e02032c | 556 | karch="x86" |
e9b44189 | 557 | vanilla_config="allyesconfig" |
7e02032c MJ |
558 | ubuntu_config="i386-config.flavour.generic" |
559 | ;; | |
560 | ||
16844a6d | 561 | "amd64") |
7e02032c | 562 | karch="x86" |
e9b44189 | 563 | vanilla_config="allyesconfig" |
7e02032c MJ |
564 | ubuntu_config="amd64-config.flavour.generic" |
565 | ;; | |
566 | ||
567 | "armhf") | |
568 | karch="arm" | |
e9b44189 | 569 | vanilla_config="allyesconfig" |
7e02032c MJ |
570 | ubuntu_config="armhf-config.flavour.generic" |
571 | ;; | |
572 | ||
573 | "arm64") | |
574 | karch="arm64" | |
e9b44189 | 575 | vanilla_config="allyesconfig" |
7e02032c MJ |
576 | ubuntu_config="arm64-config.flavour.generic" |
577 | ;; | |
578 | ||
579 | "powerpc") | |
580 | karch="powerpc" | |
e9b44189 | 581 | vanilla_config="allyesconfig" |
7e02032c MJ |
582 | ubuntu_config="powerpc-config.flavour.powerpc-smp" |
583 | ;; | |
584 | ||
585 | "ppc64el") | |
586 | karch="powerpc" | |
e9b44189 | 587 | vanilla_config="allyesconfig" |
7e02032c MJ |
588 | ubuntu_config="ppc64el-config.flavour.generic" |
589 | ;; | |
590 | ||
591 | *) | |
592 | echo "Unsupported arch $arch" | |
593 | exit 1 | |
594 | ;; | |
595 | esac | |
596 | else | |
04873cc3 | 597 | echo "No arch or cross_arch specified" |
7e02032c MJ |
598 | exit 1 |
599 | fi | |
339db64d | 600 | |
339db64d | 601 | |
b214d997 | 602 | |
5a196804 MJ |
603 | # First get the kernel build from the object store, or build it, if it's |
604 | # not available. | |
339db64d | 605 | |
5a196804 MJ |
606 | echo "# Setup endpoint |
607 | host_base = obj.internal.efficios.com | |
608 | host_bucket = obj.internal.efficios.com | |
609 | bucket_location = us-east-1 | |
610 | use_https = True | |
7e02032c | 611 | |
5a196804 MJ |
612 | # Setup access keys |
613 | access_key = jenkins | |
614 | secret_key = echo123456 | |
339db64d | 615 | |
5a196804 MJ |
616 | # Enable S3 v4 signature APIs |
617 | signature_v2 = False" > "$WORKSPACE/.s3cfg" | |
339db64d | 618 | |
c45b04df | 619 | url_hash="$(echo -n "$kgitrepo" | md5sum | awk '{ print $1 }')" |
5a196804 | 620 | obj_name="linux.tar.bz2" |
87445931 MJ |
621 | |
622 | if [ "x${cross_arch}" = "x" ]; then | |
623 | obj_url_prefix="$OBJ_STORE_URL/linux-build/$url_hash/$ktag/$arch/native" | |
624 | else | |
625 | obj_url_prefix="$OBJ_STORE_URL/linux-build/$url_hash/$ktag/${cross_arch}" | |
626 | fi | |
627 | ||
5a196804 | 628 | obj_url="$obj_url_prefix/$obj_name" |
339db64d | 629 | |
5a196804 MJ |
630 | set +e |
631 | s3cmd -c "$WORKSPACE/.s3cfg" get "$obj_url" | |
632 | ret=$? | |
633 | set -e | |
339db64d | 634 | |
5a196804 MJ |
635 | case "$ret" in |
636 | "0") | |
637 | extract_archive_obj | |
638 | ;; | |
a1ae361e | 639 | |
5a196804 MJ |
640 | "12") |
641 | echo "File not found" | |
339db64d | 642 | |
5a196804 MJ |
643 | # Build all the things and upload |
644 | # then finish the module build... | |
339db64d | 645 | |
5a196804 MJ |
646 | git_clone_linux_sources |
647 | git_export_linux_sources | |
339db64d | 648 | |
5a196804 | 649 | select_compiler |
a1ae361e | 650 | |
5a196804 MJ |
651 | ## PREPARE FULL LINUX SOURCE TREE |
652 | build_linux_kernel | |
d138fc44 | 653 | |
5a196804 MJ |
654 | ## EXTRACT DISTRO STYLE KERNEL HEADERS / DEVEL |
655 | extract_distro_headers | |
339db64d | 656 | |
5a196804 | 657 | tar_archive_obj |
339db64d | 658 | |
5a196804 | 659 | upload_archive_obj |
339db64d | 660 | |
5a196804 | 661 | ;; |
339db64d | 662 | |
5a196804 MJ |
663 | *) |
664 | echo "Unknown error? Abort" | |
665 | exit 1 | |
666 | ;; | |
667 | esac | |
339db64d | 668 | |
5a196804 | 669 | select_compiler |
f3d8604b | 670 | |
7e02032c | 671 | ## BUILD modules |
5a196804 MJ |
672 | # Either we downloaded a pre-build kernel or we built it and uploaded |
673 | # the archive for future builds. | |
674 | ||
675 | cd "$WORKSPACE" | |
f3d8604b | 676 | |
339db64d | 677 | # Build modules against full kernel sources |
5a196804 | 678 | build_modules "${LINUX_SRCOBJ_DIR}" "${MODULES_OUTPUT_KSRC_DIR}" |
f3d8604b | 679 | |
339db64d | 680 | # Build modules against kernel headers |
5a196804 | 681 | build_modules "${LINUX_HDROBJ_DIR}" "${MODULES_OUTPUT_KHDR_DIR}" |
f3d8604b | 682 | |
5a196804 MJ |
683 | # Make sure some modules were actually built |
684 | tree "${MODULES_OUTPUT_KSRC_DIR}" | |
685 | if [ "x$(find "${MODULES_OUTPUT_KSRC_DIR}" -name '*.ko*' -printf yes -quit)" != "xyes" ]; then | |
7e02032c MJ |
686 | echo "No modules built!" |
687 | exit 1 | |
688 | fi | |
689 | ||
5a196804 MJ |
690 | tree "${MODULES_OUTPUT_KHDR_DIR}" |
691 | if [ "x$(find "${MODULES_OUTPUT_KHDR_DIR}" -name '*.ko*' -printf yes -quit)" != "xyes" ]; then | |
7e02032c MJ |
692 | echo "No modules built!" |
693 | exit 1 | |
694 | fi | |
b214d997 | 695 | |
f3d8604b | 696 | # EOF |