Commit | Line | Data |
---|---|---|
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 | ||
6c0b2710 KS |
97 | list_gccs() { |
98 | local gccs | |
99 | gccs=() | |
100 | IFS=: read -r -a path_array <<< "$PATH" | |
101 | while read -r gcc ; do | |
102 | gccs+=("$gcc") | |
103 | done < <(find "${path_array[@]}" -maxdepth 1 -regex '.*/gcc-[0-9\.]+$' -printf '%f\n' | sort -t- -k2 -V -r) | |
104 | echo "${gccs[@]}" | |
105 | } | |
106 | ||
5a196804 MJ |
107 | # Find the most recent GCC version supported by the kernel sources |
108 | select_compiler() { | |
109 | local selected_cc | |
110 | ||
111 | cd "$LINUX_SRCOBJ_DIR" | |
112 | ||
113 | kversion=$(make -s kernelversion) | |
114 | ||
115 | set +e | |
116 | ||
6c0b2710 | 117 | for cc in $(list_gccs) ; do |
5a196804 MJ |
118 | if "${CROSS_COMPILE:-}${cc}" -I include/ -D__LINUX_COMPILER_H -D__LINUX_COMPILER_TYPES_H -E include/linux/compiler-gcc.h; then |
119 | selected_cc="$cc" | |
120 | break | |
121 | fi | |
122 | done | |
123 | ||
124 | set -e | |
125 | ||
126 | if [ "x$selected_cc" = "x" ]; then | |
127 | echo "Found no suitable compiler." | |
128 | exit 1 | |
129 | fi | |
130 | ||
1d5a0a3c MJ |
131 | # Force gcc-4.8 for kernels before 3.18 |
132 | if { verlt "$kversion" "3.18"; }; then | |
23db2292 | 133 | selected_cc=gcc-4.8 |
7e02032c MJ |
134 | fi |
135 | ||
425e4992 MJ |
136 | if [ "$selected_cc" != "gcc-4.8" ]; then |
137 | # Older kernel Makefiles do not expect the compiler to default to PIE | |
138 | KAFLAGS="-fno-pie" | |
c45b04df | 139 | KCFLAGS="-fno-pie -no-pie -fno-stack-protector" |
425e4992 MJ |
140 | KCPPFLAGS="-fno-pie" |
141 | export KAFLAGS KCFLAGS KCPPFLAGS | |
142 | fi | |
143 | ||
5a196804 | 144 | export CC="${CROSS_COMPILE:-}${selected_cc}" |
1d5a0a3c | 145 | export HOSTCC="${selected_cc}" |
5a196804 MJ |
146 | |
147 | cd - | |
148 | } | |
149 | ||
150 | ||
151 | build_linux_kernel() { | |
152 | cd "$LINUX_SRCOBJ_DIR" | |
153 | ||
154 | kversion=$(make -s kernelversion) | |
155 | ||
7e02032c | 156 | # Generate kernel configuration |
a1ae361e | 157 | case "$ktag" in |
7e02032c | 158 | Ubuntu*) |
39961776 | 159 | if [ "${cross_arch}" = "powerpc" ]; then |
5a196804 | 160 | if vergte "${kversion}" "4.10"; then |
39961776 MJ |
161 | echo "Ubuntu removed big endian powerpc configuration from kernel >= 4.10. Don't try to build it." |
162 | exit 0 | |
163 | fi | |
164 | fi | |
af101606 MJ |
165 | |
166 | # Disable riscv64 config generation, we don't have a toolchain on bionic | |
167 | sed -i 's/riscv64 //' debian.master/etc/kernelconfig | |
168 | ||
0c1bde3d KS |
169 | fakeroot debian/rules clean KW_DEFCONFIG_DIR=. |
170 | ||
073dc82c | 171 | # Hack for kernel Ubuntu-hwe-5.8 |
0c1bde3d KS |
172 | # The debian/control file is produced by the clean target above, so this |
173 | # check needs to happen afterwards. | |
174 | if [ ! -f "debian/compat" ] && ! grep -q debhelper-compat debian/control; then | |
073dc82c MJ |
175 | echo "10" > "debian/compat" |
176 | fi | |
177 | ||
0c1bde3d KS |
178 | # genconfigs check can fail in certain cases, eg. when a more recent |
179 | # compiler exposes kernel configuration flags which aren't set in the | |
180 | # Ubuntu annotations. | |
181 | # In any case, the configuration will be updated with any missing values | |
182 | # later in our build script. | |
183 | fakeroot debian/rules genconfigs KW_DEFCONFIG_DIR=. do_skip_checks=true | |
5a196804 | 184 | cp CONFIGS/"${ubuntu_config}" .config |
7e02032c | 185 | ;; |
c45b04df | 186 | |
7e02032c | 187 | *) |
16844a6d MJ |
188 | # Force 32bit build on i386, default is 64bit |
189 | if [ "$arch" = "i386" ]; then | |
5a196804 MJ |
190 | export ARCH="i386" |
191 | fi | |
192 | ||
193 | # allyesconfig is mostly broken for kernels of the 2.6 series | |
194 | if verlt "$kversion" "3.0"; then | |
195 | vanilla_config="defconfig" | |
7a76a4d0 MJ |
196 | fi |
197 | ||
5a196804 | 198 | make "${vanilla_config}" |
7e02032c MJ |
199 | ;; |
200 | esac | |
201 | ||
53b51a15 | 202 | # oldnoconfig was renamed in 4.19 |
5a196804 | 203 | if vergte "$kversion" "4.19"; then |
53b51a15 | 204 | update_conf_target="olddefconfig" |
5a196804 | 205 | else |
53b51a15 | 206 | update_conf_target="oldnoconfig" |
5a196804 MJ |
207 | fi |
208 | ||
209 | # Fix 'defined(@array)' was removed from recent perl | |
210 | if [ -f "kernel/timeconst.pl" ]; then | |
211 | sed -i 's/defined(\@\(.*\))/@\1/' kernel/timeconst.pl | |
212 | fi | |
213 | ||
214 | # Fix syntax of inline assembly which is confused with C++11 raw strings on gcc >= 5 | |
53b51a15 | 215 | if [ "$HOSTCC" != "gcc-4.8" ]; then |
5a196804 MJ |
216 | if [ -f "arch/x86/kvm/svm.c" ]; then |
217 | sed -i 's/ R"/ R "/g; s/"R"/" R "/g' arch/x86/kvm/svm.c | |
218 | fi | |
219 | ||
220 | if [ -f "arch/x86/kvm/vmx.c" ]; then | |
221 | sed -i 's/ R"/ R "/g; s/"R"/" R "/g' arch/x86/kvm/vmx.c | |
222 | fi | |
223 | fi | |
224 | ||
53b51a15 MJ |
225 | # Newer binutils don't accept 3 operand 'cmp' instructions on ppc64 |
226 | # Convert them to 'cmpw' which was previously done silently | |
227 | if verlt "$kversion" "4.9"; then | |
228 | 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/" | |
229 | 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/" | |
230 | sed -i "s/\$pie \-o \"\$ofile\"/\$pie --no-dynamic-linker -o \"\$ofile\"/" arch/powerpc/boot/wrapper | |
231 | fi | |
232 | ||
5a196804 MJ |
233 | # Fix a typo in v2.6.36.x |
234 | if [ -f "arch/x86/kernel/entry_64.S" ]; then | |
235 | sed -i 's/END(do_hypervisor_callback)/END(xen_do_hypervisor_callback)/' arch/x86/kernel/entry_64.S | |
236 | fi | |
237 | ||
53b51a15 MJ |
238 | # Fix compiler switch in vdso Makefile for 2.6.36 to 2.6.36.2 |
239 | if { vergte "$kversion" "2.6.36" && verlte "$kversion" "2.6.36.3"; }; then | |
240 | sed -i 's/-m elf_x86_64/-m64/' arch/x86/vdso/Makefile | |
241 | sed -i 's/-m elf_i386/-m32/' arch/x86/vdso/Makefile | |
242 | fi | |
243 | ||
5a196804 MJ |
244 | # Fix kernel < 3.0 with gcc >= 4.7 |
245 | if verlt "$kversion" "3.0"; then | |
246 | sed -i '/linux\/compiler.h/a #include <linux\/linkage.h> \/* For asmregparm *\/' arch/x86/include/asm/ptrace.h | |
247 | sed -i 's/extern long syscall_trace_enter/extern asmregparm long syscall_trace_enter/' arch/x86/include/asm/ptrace.h | |
248 | sed -i 's/extern void syscall_trace_leave/extern asmregparm void syscall_trace_leave/' arch/x86/include/asm/ptrace.h | |
249 | echo "header-y += linkage.h" >> include/linux/Kbuild | |
250 | fi | |
251 | ||
7e02032c | 252 | # GCC 4.8 |
53b51a15 MJ |
253 | if [ "$HOSTCC" == "gcc-4.8" ]; then |
254 | scripts/config --disable CONFIG_CC_STACKPROTECTOR_STRONG | |
255 | fi | |
7e02032c MJ |
256 | |
257 | # Don't try to sign modules | |
53b51a15 | 258 | scripts/config --disable CONFIG_MODULE_SIG |
7e02032c | 259 | |
9ef18fa2 | 260 | # Disable kernel stack frame correctness validation, introduced in 4.6.0 and currently fails |
53b51a15 | 261 | scripts/config --disable CONFIG_STACK_VALIDATION |
5a196804 MJ |
262 | |
263 | # Cause problems with inline assembly on i386 | |
53b51a15 | 264 | scripts/config --disable CONFIG_DEBUG_SECTION_MISMATCH |
5a196804 | 265 | |
1d5a0a3c | 266 | # Don't build samples, they are broken on some kernel releases |
53b51a15 MJ |
267 | scripts/config --disable CONFIG_SAMPLES |
268 | scripts/config --disable CONFIG_BUILD_DOCSRC | |
c45b04df MJ |
269 | |
270 | # Disable kcov | |
53b51a15 | 271 | scripts/config --disable CONFIG_KCOV |
c45b04df MJ |
272 | |
273 | # Broken on some RT kernels | |
53b51a15 | 274 | scripts/config --disable CONFIG_HYPERV |
1d5a0a3c | 275 | |
1e300ea9 | 276 | # Broken drivers |
53b51a15 MJ |
277 | scripts/config --disable CONFIG_RAPIDIO_TSI721 |
278 | scripts/config --disable CONFIG_SGI_XP | |
279 | scripts/config --disable CONFIG_MFD_WM8994 | |
280 | scripts/config --disable CONFIG_DRM_RADEON | |
281 | scripts/config --disable CONFIG_SND_SOC_WM5100 | |
1e300ea9 | 282 | |
5a196804 MJ |
283 | # IGBVF won't build with recent gcc on 2.6.38.x |
284 | if { vergte "$kversion" "2.6.37" && verlt "$kversion" "2.6.38"; }; then | |
53b51a15 | 285 | scripts/config --disable CONFIG_IGBVF |
5a196804 | 286 | fi |
9ef18fa2 | 287 | |
c72041eb MJ |
288 | # Don't fail the build on warnings |
289 | scripts/config --disable CONFIG_WERROR | |
290 | ||
51fa2ab3 | 291 | # Set required options |
53b51a15 MJ |
292 | scripts/config --enable CONFIG_TRACEPOINTS |
293 | scripts/config --enable CONFIG_KALLSYMS | |
294 | scripts/config --enable CONFIG_HIGH_RES_TIMERS | |
295 | scripts/config --enable CONFIG_KPROBES | |
296 | scripts/config --enable CONFIG_FTRACE | |
297 | scripts/config --enable CONFIG_BLK_DEV_IO_TRACE | |
298 | scripts/config --enable CONFIG_KALLSYMS_ALL | |
299 | scripts/config --enable CONFIG_HAVE_SYSCALL_TRACEPOINTS | |
300 | scripts/config --enable CONFIG_PERF_EVENTS | |
301 | scripts/config --enable CONFIG_EVENT_TRACING | |
302 | scripts/config --enable CONFIG_KRETPROBES | |
7e02032c | 303 | |
1d28ffce MJ |
304 | # FIXME: disable objtool on vmlinux, it OOMs on allyesconfig |
305 | sed -i 's/objtool_link vmlinux.o//' scripts/link-vmlinux.sh || true | |
81e61c58 MJ |
306 | # Starting with v6.1-rc6 |
307 | sed -i 's/^objtool-enabled := .*/objtool-enabled := /' scripts/Makefile.vmlinux_o || true | |
1d28ffce | 308 | |
ba1a68bc MJ |
309 | # Disable SORTTAB |
310 | sed -i 's/is_enabled CONFIG_BUILDTIME_TABLE_SORT/is_enabled CONFIG_NONEXISTANT/' scripts/link-vmlinux.sh || true | |
311 | ||
7a76a4d0 | 312 | # Debug |
5a196804 MJ |
313 | #cat .config |
314 | ||
315 | make "$update_conf_target" CC="$CC" | |
316 | make -j"$NPROC" CC="$CC" | |
317 | ||
c45b04df | 318 | krelease=$(make -s kernelrelease CC="$CC") |
5a196804 MJ |
319 | |
320 | # Save the kernel and modules | |
321 | mkdir -p "$LINUX_INSTOBJ_DIR/boot" | |
53b51a15 | 322 | make INSTALL_MOD_PATH="$LINUX_INSTOBJ_DIR" INSTALL_MOD_STRIP=1 modules_install CC="$CC" |
f4c112e8 | 323 | make INSTALL_MOD_PATH="$LINUX_INSTOBJ_DIR" INSTALL_PATH="$LINUX_INSTOBJ_DIR/boot" install CC="$CC" |
5a196804 MJ |
324 | rm -f "$LINUX_INSTOBJ_DIR/lib/modules/${krelease}/source" "$LINUX_INSTOBJ_DIR/lib/modules/${krelease}/build" |
325 | ln -s ../../../../sources "$LINUX_INSTOBJ_DIR/lib/modules/${krelease}/source" | |
326 | ln -s ../../../../sources "$LINUX_INSTOBJ_DIR/lib/modules/${krelease}/source" | |
327 | } | |
328 | ||
329 | ||
330 | extract_distro_headers() { | |
331 | ||
332 | # Enter linux source dir | |
333 | cd "${LINUX_SRCOBJ_DIR}" | |
334 | ||
335 | ||
336 | # For RT kernels, copy version file | |
337 | if [ -s localversion-rt ]; then | |
338 | cp -a localversion-rt "${LINUX_HDROBJ_DIR}" | |
339 | fi | |
340 | ||
341 | # Copy all Makefile related stuff | |
342 | find . -path './include/*' -prune \ | |
343 | -o -path './scripts/*' -prune -o -type f \ | |
344 | \( -name 'Makefile*' -o -name 'Kconfig*' -o -name 'Kbuild*' -o \ | |
345 | -name '*.sh' -o -name '*.pl' -o -name '*.lds' \) \ | |
346 | -print | cpio -pd --preserve-modification-time "${LINUX_HDROBJ_DIR}" | |
347 | ||
348 | # Copy base scripts and include dirs | |
349 | cp -a scripts include "${LINUX_HDROBJ_DIR}" | |
7e02032c | 350 | |
5a196804 MJ |
351 | # Copy arch includes |
352 | (find arch -name include -type d -print0 | \ | |
353 | xargs -0 -n1 -i: find : -type f) | \ | |
354 | cpio -pd --preserve-modification-time "${LINUX_HDROBJ_DIR}" | |
355 | ||
356 | # Copy arch scripts | |
357 | (find arch -name scripts -type d -print0 | \ | |
358 | xargs -0 -n1 -i: find : -type f) | \ | |
359 | cpio -pd --preserve-modification-time "${LINUX_HDROBJ_DIR}" | |
360 | ||
361 | # Cleanup scripts | |
362 | rm -f "${LINUX_HDROBJ_DIR}/scripts/*.o" | |
363 | rm -f "${LINUX_HDROBJ_DIR}/scripts/*/*.o" | |
364 | ||
04873cc3 | 365 | # On powerpc 32bits this object is required to link modules |
5a196804 | 366 | if [ "${karch}" = "powerpc" ]; then |
10528202 MJ |
367 | if [ "x$(scripts/config -s CONFIG_PPC64)" = "xy" ] && vergte "${kversion}" "5.4"; then |
368 | : | |
369 | else | |
04873cc3 MJ |
370 | cp -a --parents arch/powerpc/lib/crtsavres.[So] "${LINUX_HDROBJ_DIR}/" |
371 | fi | |
5a196804 MJ |
372 | fi |
373 | ||
374 | # On arm64 between 4.13 and 1.15 this object is required to build with ftrace support | |
375 | if [ "${karch}" = "arm64" ]; then | |
376 | if [ -f "arch/arm64/kernel/ftrace-mod.S" ]; then | |
377 | cp -a --parents arch/arm64/kernel/ftrace-mod.[So] "${LINUX_HDROBJ_DIR}/" | |
378 | fi | |
379 | fi | |
380 | ||
381 | # Newer kernels need objtool to build modules when CONFIG_STACK_VALIDATION=y | |
382 | if [ -f tools/objtool/objtool ]; then | |
383 | cp -a --parents tools/objtool/objtool "${LINUX_HDROBJ_DIR}/" | |
384 | fi | |
385 | ||
386 | if [ -f "arch/x86/kernel/macros.s" ]; then | |
387 | cp -a --parents arch/x86/kernel/macros.s "${LINUX_HDROBJ_DIR}/" | |
388 | fi | |
389 | ||
390 | # Copy modules related stuff, if available | |
391 | if [ -s Module.symvers ]; then | |
392 | cp Module.symvers "${LINUX_HDROBJ_DIR}" | |
393 | fi | |
394 | ||
395 | if [ -s System.map ]; then | |
396 | cp System.map "${LINUX_HDROBJ_DIR}" | |
397 | fi | |
398 | ||
399 | if [ -s Module.markers ]; then | |
400 | cp Module.markers "${LINUX_HDROBJ_DIR}" | |
401 | fi | |
402 | ||
403 | # Copy config file | |
404 | cp .config "${LINUX_HDROBJ_DIR}" | |
405 | ||
406 | # Make sure the Makefile and version.h have a matching timestamp so that | |
407 | # external modules can be built | |
408 | if [ -s "${LINUX_HDROBJ_DIR}/include/generated/uapi/linux/version.h" ]; then | |
409 | touch -r "${LINUX_HDROBJ_DIR}/Makefile" "${LINUX_HDROBJ_DIR}/include/generated/uapi/linux/version.h" | |
410 | elif [ -s "${LINUX_HDROBJ_DIR}/include/linux/version.h" ]; then | |
411 | touch -r "${LINUX_HDROBJ_DIR}/Makefile" "${LINUX_HDROBJ_DIR}/include/linux/version.h" | |
412 | else | |
413 | echo "Missing version.h" | |
414 | exit 1 | |
415 | fi | |
416 | touch -r "${LINUX_HDROBJ_DIR}/.config" "${LINUX_HDROBJ_DIR}/include/generated/autoconf.h" | |
417 | ||
418 | # Copy .config to include/config/auto.conf so "make prepare" is unnecessary. | |
780f6285 MJ |
419 | if [ ! -f "${LINUX_HDROBJ_DIR}/include/config/auto.conf" ]; then |
420 | cp "${LINUX_HDROBJ_DIR}/.config" "${LINUX_HDROBJ_DIR}/include/config/auto.conf" | |
421 | fi | |
5a196804 MJ |
422 | |
423 | # Finally clean the object files from the full source tree | |
424 | make clean | |
425 | ||
426 | # And regen the modules support files | |
427 | make modules_prepare CC="$CC" | |
51fa2ab3 | 428 | |
04873cc3 | 429 | # On powerpc 32bits this object is required to link modules |
d815b018 | 430 | if [ "${karch}" = "powerpc" ]; then |
10528202 MJ |
431 | if [ "x$(scripts/config -s CONFIG_PPC64)" = "xy" ] && vergte "${kversion}" "5.4"; then |
432 | : | |
433 | else | |
04873cc3 MJ |
434 | make arch/powerpc/lib/crtsavres.o CC="$CC" |
435 | fi | |
d815b018 MJ |
436 | fi |
437 | ||
7a76a4d0 | 438 | # On arm64 between 4.13 and 4.15 this object is required to build with ftrace support |
a1ae361e | 439 | if [ "${karch}" = "arm64" ]; then |
c236528e | 440 | if [ -f "arch/arm64/kernel/ftrace-mod.S" ]; then |
5a196804 | 441 | make arch/arm64/kernel/ftrace-mod.o CC="$CC" |
a1ae361e MJ |
442 | fi |
443 | fi | |
444 | ||
7e02032c | 445 | # Version specific tasks |
a1ae361e | 446 | case "$ktag" in |
7e02032c MJ |
447 | Ubuntu*) |
448 | # Add Ubuntu ABI number to kernel headers, this is normally done by the packaging code | |
a1ae361e | 449 | ABINUM="$(echo "$ktag" | grep -P -o 'Ubuntu-(lts-)?.*-\K\d+(?=\..*)')" |
5a196804 MJ |
450 | echo "#define UTS_UBUNTU_RELEASE_ABI $ABINUM" >> include/generated/utsrelease.h |
451 | echo "#define UTS_UBUNTU_RELEASE_ABI $ABINUM" >> "${LINUX_HDROBJ_DIR}/include/generated/utsrelease.h" | |
7e02032c MJ |
452 | ;; |
453 | esac | |
7e02032c MJ |
454 | } |
455 | ||
456 | ||
339db64d MJ |
457 | build_modules() { |
458 | ||
5a196804 MJ |
459 | local kdir="$1" |
460 | local outdir="$2" | |
461 | local kversion | |
462 | ||
463 | kversion=$(make -C "$LINUX_HDROBJ_DIR" -s kernelversion) | |
339db64d | 464 | |
2456f978 MJ |
465 | # Try to catch some compatibility problems by turning some |
466 | # warnings into errors. | |
999a2aa0 | 467 | #export KCFLAGS="$KCFLAGS -Wall -Werror" |
2456f978 | 468 | |
339db64d | 469 | # Enter lttng-modules source dir |
5a196804 | 470 | cd "${MODULES_GIT_DIR}" |
339db64d MJ |
471 | |
472 | # kernels 3.10 to 3.10.13 and 3.11 to 3.11.2 introduce a deadlock in the | |
473 | # timekeeping subsystem. We want those build to fail. | |
5a196804 MJ |
474 | if { vergte "$kversion" "3.10" && verlte "$kversion" "3.10.13"; } || \ |
475 | { vergte "$kversion" "3.11" && verlte "$kversion" "3.11.2"; }; then | |
339db64d MJ |
476 | |
477 | set +e | |
478 | ||
479 | # Build modules | |
51fa2ab3 | 480 | KERNELDIR="${kdir}" make -j"${NPROC}" V=1 CC="$CC" |
0f71a764 | 481 | ret=$? |
339db64d | 482 | |
5a196804 MJ |
483 | set -e |
484 | ||
339db64d | 485 | # We expect this build to fail, if it doesn't, fail the job. |
0f71a764 | 486 | if [ "$ret" -eq 0 ]; then |
e9b44189 | 487 | echo "This build should have failed." |
339db64d MJ |
488 | exit 1 |
489 | fi | |
490 | ||
491 | # We have to publish at least one file or the build will fail | |
5a196804 | 492 | echo "This kernel is broken, there is a deadlock in the timekeeping subsystem." > "${outdir}/BROKEN.txt.ko" |
339db64d | 493 | |
5a196804 | 494 | KERNELDIR="${kdir}" make clean |
7e02032c | 495 | |
339db64d MJ |
496 | else # Regular build |
497 | ||
498 | # Build modules against full kernel sources | |
51fa2ab3 | 499 | KERNELDIR="${kdir}" make -j"${NPROC}" V=1 CC="$CC" |
339db64d MJ |
500 | |
501 | # Install modules to build dir | |
5a196804 | 502 | KERNELDIR="${kdir}" make INSTALL_MOD_PATH="${outdir}" modules_install |
339db64d MJ |
503 | |
504 | # Clean build dir | |
5a196804 | 505 | KERNELDIR="${kdir}" make clean |
339db64d MJ |
506 | fi |
507 | } | |
508 | ||
509 | ||
510 | ## MAIN ## | |
511 | ||
f3d8604b MJ |
512 | # Use all CPU cores |
513 | NPROC=$(nproc) | |
514 | ||
5a196804 MJ |
515 | MODULES_GIT_DIR="${WORKSPACE}/src/lttng-modules" |
516 | LINUX_GIT_DIR="${WORKSPACE}/src/linux" | |
339db64d | 517 | |
5a196804 MJ |
518 | LINUX_OBJ_DIR="${WORKSPACE}/linux" |
519 | LINUX_SRCOBJ_DIR="${LINUX_OBJ_DIR}/sources" | |
520 | LINUX_HDROBJ_DIR="${LINUX_OBJ_DIR}/headers" | |
521 | LINUX_INSTOBJ_DIR="${LINUX_OBJ_DIR}/install" | |
339db64d | 522 | |
5a196804 MJ |
523 | MODULES_OUTPUT_KSRC_DIR="${WORKSPACE}/build/lttng-modules-ksrc" |
524 | MODULES_OUTPUT_KHDR_DIR="${WORKSPACE}/build/lttng-modules-khdr" | |
339db64d | 525 | |
5a196804 MJ |
526 | LINUX_GIT_REF_REPO_DIR="$HOME/gitcache/linux-stable.git/" |
527 | ||
528 | OBJ_STORE_URL="s3://jenkins" | |
529 | ||
530 | cd "$WORKSPACE" | |
531 | ||
532 | # Create build directories | |
533 | mkdir -p "${LINUX_SRCOBJ_DIR}" "${LINUX_HDROBJ_DIR}" "${LINUX_INSTOBJ_DIR}" "${MODULES_OUTPUT_KSRC_DIR}" "${MODULES_OUTPUT_KHDR_DIR}" | |
534 | ||
535 | git_clone_modules_sources | |
339db64d | 536 | |
7e02032c | 537 | # Setup cross compile env if available |
39961776 | 538 | if [ "x${cross_arch}" != "x" ]; then |
7e02032c MJ |
539 | |
540 | case "$cross_arch" in | |
541 | "armhf") | |
542 | karch="arm" | |
543 | cross_compile="arm-linux-gnueabihf-" | |
53b51a15 | 544 | vanilla_config="imx_v6_v7_defconfig" |
7e02032c MJ |
545 | ubuntu_config="armhf-config.flavour.generic" |
546 | ;; | |
547 | ||
548 | "arm64") | |
549 | karch="arm64" | |
550 | cross_compile="aarch64-linux-gnu-" | |
53b51a15 | 551 | vanilla_config="defconfig" |
7e02032c MJ |
552 | ubuntu_config="arm64-config.flavour.generic" |
553 | ;; | |
554 | ||
555 | "powerpc") | |
556 | karch="powerpc" | |
557 | cross_compile="powerpc-linux-gnu-" | |
e9b44189 | 558 | vanilla_config="ppc44x_defconfig" |
7e02032c MJ |
559 | ubuntu_config="powerpc-config.flavour.powerpc-smp" |
560 | ;; | |
561 | ||
562 | "ppc64el") | |
563 | karch="powerpc" | |
564 | cross_compile="powerpc64le-linux-gnu-" | |
e9b44189 | 565 | vanilla_config="pseries_le_defconfig" |
7e02032c MJ |
566 | ubuntu_config="ppc64el-config.flavour.generic" |
567 | ;; | |
568 | ||
569 | *) | |
51fa2ab3 | 570 | echo "Unsupported cross arch $cross_arch" |
7e02032c MJ |
571 | exit 1 |
572 | ;; | |
573 | esac | |
339db64d | 574 | |
7e02032c MJ |
575 | # Export variables used by Kbuild for cross compilation |
576 | export ARCH="${karch}" | |
577 | export CROSS_COMPILE="${cross_compile}" | |
339db64d | 578 | |
7e02032c | 579 | # Set arch specific values if we are not cross compiling |
39961776 | 580 | elif [ "x${arch}" != "x" ]; then |
e9b44189 | 581 | |
7e02032c | 582 | case "$arch" in |
16844a6d | 583 | "i386") |
7e02032c | 584 | karch="x86" |
e9b44189 | 585 | vanilla_config="allyesconfig" |
7e02032c MJ |
586 | ubuntu_config="i386-config.flavour.generic" |
587 | ;; | |
588 | ||
16844a6d | 589 | "amd64") |
7e02032c | 590 | karch="x86" |
e9b44189 | 591 | vanilla_config="allyesconfig" |
7e02032c MJ |
592 | ubuntu_config="amd64-config.flavour.generic" |
593 | ;; | |
594 | ||
595 | "armhf") | |
596 | karch="arm" | |
e9b44189 | 597 | vanilla_config="allyesconfig" |
7e02032c MJ |
598 | ubuntu_config="armhf-config.flavour.generic" |
599 | ;; | |
600 | ||
601 | "arm64") | |
602 | karch="arm64" | |
e9b44189 | 603 | vanilla_config="allyesconfig" |
7e02032c MJ |
604 | ubuntu_config="arm64-config.flavour.generic" |
605 | ;; | |
606 | ||
607 | "powerpc") | |
608 | karch="powerpc" | |
e9b44189 | 609 | vanilla_config="allyesconfig" |
7e02032c MJ |
610 | ubuntu_config="powerpc-config.flavour.powerpc-smp" |
611 | ;; | |
612 | ||
613 | "ppc64el") | |
614 | karch="powerpc" | |
e9b44189 | 615 | vanilla_config="allyesconfig" |
7e02032c MJ |
616 | ubuntu_config="ppc64el-config.flavour.generic" |
617 | ;; | |
618 | ||
619 | *) | |
620 | echo "Unsupported arch $arch" | |
621 | exit 1 | |
622 | ;; | |
623 | esac | |
624 | else | |
04873cc3 | 625 | echo "No arch or cross_arch specified" |
7e02032c MJ |
626 | exit 1 |
627 | fi | |
339db64d | 628 | |
339db64d | 629 | |
b214d997 | 630 | |
5a196804 MJ |
631 | # First get the kernel build from the object store, or build it, if it's |
632 | # not available. | |
339db64d | 633 | |
5a196804 MJ |
634 | echo "# Setup endpoint |
635 | host_base = obj.internal.efficios.com | |
636 | host_bucket = obj.internal.efficios.com | |
637 | bucket_location = us-east-1 | |
638 | use_https = True | |
7e02032c | 639 | |
5a196804 MJ |
640 | # Setup access keys |
641 | access_key = jenkins | |
642 | secret_key = echo123456 | |
339db64d | 643 | |
5a196804 MJ |
644 | # Enable S3 v4 signature APIs |
645 | signature_v2 = False" > "$WORKSPACE/.s3cfg" | |
339db64d | 646 | |
c45b04df | 647 | url_hash="$(echo -n "$kgitrepo" | md5sum | awk '{ print $1 }')" |
5a196804 | 648 | obj_name="linux.tar.bz2" |
87445931 MJ |
649 | |
650 | if [ "x${cross_arch}" = "x" ]; then | |
651 | obj_url_prefix="$OBJ_STORE_URL/linux-build/$url_hash/$ktag/$arch/native" | |
652 | else | |
653 | obj_url_prefix="$OBJ_STORE_URL/linux-build/$url_hash/$ktag/${cross_arch}" | |
654 | fi | |
655 | ||
5a196804 | 656 | obj_url="$obj_url_prefix/$obj_name" |
339db64d | 657 | |
5a196804 | 658 | set +e |
e18b6e95 KS |
659 | # In s3cmd 2.3, the return code of get when an object does not exist (64) |
660 | # is different than in 2.2 (12). The return codes of 's3cmd info' are | |
661 | # consistent between 2.2 and 2.3. | |
662 | s3cmd -c "$WORKSPACE/.s3cfg" info "$obj_url" | |
5a196804 MJ |
663 | ret=$? |
664 | set -e | |
339db64d | 665 | |
5a196804 MJ |
666 | case "$ret" in |
667 | "0") | |
e18b6e95 | 668 | s3cmd -c "$WORKSPACE/.s3cfg" get "$obj_url" |
5a196804 MJ |
669 | extract_archive_obj |
670 | ;; | |
a1ae361e | 671 | |
5a196804 MJ |
672 | "12") |
673 | echo "File not found" | |
339db64d | 674 | |
5a196804 MJ |
675 | # Build all the things and upload |
676 | # then finish the module build... | |
339db64d | 677 | |
5a196804 MJ |
678 | git_clone_linux_sources |
679 | git_export_linux_sources | |
339db64d | 680 | |
5a196804 | 681 | select_compiler |
a1ae361e | 682 | |
5a196804 MJ |
683 | ## PREPARE FULL LINUX SOURCE TREE |
684 | build_linux_kernel | |
d138fc44 | 685 | |
5a196804 MJ |
686 | ## EXTRACT DISTRO STYLE KERNEL HEADERS / DEVEL |
687 | extract_distro_headers | |
339db64d | 688 | |
5a196804 | 689 | tar_archive_obj |
339db64d | 690 | |
5a196804 | 691 | upload_archive_obj |
339db64d | 692 | |
5a196804 | 693 | ;; |
339db64d | 694 | |
5a196804 MJ |
695 | *) |
696 | echo "Unknown error? Abort" | |
697 | exit 1 | |
698 | ;; | |
699 | esac | |
339db64d | 700 | |
5a196804 | 701 | select_compiler |
f3d8604b | 702 | |
7e02032c | 703 | ## BUILD modules |
5a196804 MJ |
704 | # Either we downloaded a pre-build kernel or we built it and uploaded |
705 | # the archive for future builds. | |
706 | ||
707 | cd "$WORKSPACE" | |
f3d8604b | 708 | |
339db64d | 709 | # Build modules against full kernel sources |
5a196804 | 710 | build_modules "${LINUX_SRCOBJ_DIR}" "${MODULES_OUTPUT_KSRC_DIR}" |
f3d8604b | 711 | |
339db64d | 712 | # Build modules against kernel headers |
5a196804 | 713 | build_modules "${LINUX_HDROBJ_DIR}" "${MODULES_OUTPUT_KHDR_DIR}" |
f3d8604b | 714 | |
5a196804 MJ |
715 | # Make sure some modules were actually built |
716 | tree "${MODULES_OUTPUT_KSRC_DIR}" | |
717 | if [ "x$(find "${MODULES_OUTPUT_KSRC_DIR}" -name '*.ko*' -printf yes -quit)" != "xyes" ]; then | |
7e02032c MJ |
718 | echo "No modules built!" |
719 | exit 1 | |
720 | fi | |
721 | ||
5a196804 MJ |
722 | tree "${MODULES_OUTPUT_KHDR_DIR}" |
723 | if [ "x$(find "${MODULES_OUTPUT_KHDR_DIR}" -name '*.ko*' -printf yes -quit)" != "xyes" ]; then | |
7e02032c MJ |
724 | echo "No modules built!" |
725 | exit 1 | |
726 | fi | |
b214d997 | 727 | |
f3d8604b | 728 | # EOF |