Commit | Line | Data |
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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 |
447eaf93 KS |
21 | platforms=${platforms:-} |
22 | # Derive arch from label if it isn't set | |
23 | if [ -z "${arch:-}" ] ; then | |
24 | # Labels may be platform specific, eg. jammy-amd64, deb12-armhf | |
25 | regex='[[:alnum:]]+-([[:alnum:]]+)' | |
26 | if [[ "${platforms}" =~ ${regex} ]] ; then | |
27 | arch="${BASH_REMATCH[1]}" | |
28 | else | |
29 | arch="${platforms:-}" | |
30 | fi | |
31 | fi | |
39961776 MJ |
32 | cross_arch=${cross_arch:-} |
33 | ktag=${ktag:-} | |
5a196804 MJ |
34 | kgitrepo=${kgitrepo:-} |
35 | mversion=${mversion:-} | |
36 | mgitrepo=${mgitrepo:-} | |
39961776 | 37 | |
339db64d MJ |
38 | ## FUNCTIONS ## |
39 | ||
f3d8604b MJ |
40 | # Kernel version compare functions |
41 | verlte() { | |
51fa2ab3 | 42 | [ "$1" = "$(printf '%s\n%s' "$1" "$2" | sort -V | head -n1)" ] |
f3d8604b MJ |
43 | } |
44 | ||
45 | verlt() { | |
28b10e79 | 46 | # shellcheck disable=SC2015 |
51fa2ab3 | 47 | [ "$1" = "$2" ] && return 1 || verlte "$1" "$2" |
f3d8604b MJ |
48 | } |
49 | ||
50 | vergte() { | |
51fa2ab3 | 51 | [ "$1" = "$(printf '%s\n%s' "$1" "$2" | sort -V | tail -n1)" ] |
f3d8604b MJ |
52 | } |
53 | ||
54 | vergt() { | |
28b10e79 | 55 | # shellcheck disable=SC2015 |
51fa2ab3 | 56 | [ "$1" = "$2" ] && return 1 || vergte "$1" "$2" |
f3d8604b MJ |
57 | } |
58 | ||
339db64d | 59 | |
5a196804 MJ |
60 | git_clone_modules_sources() { |
61 | mkdir -p "$MODULES_GIT_DIR" | |
28b10e79 MJ |
62 | |
63 | # If the version starts with "refs/", checkout the specific git ref, otherwise treat it | |
64 | # as a branch name. | |
65 | if [ "${mversion:0:5}" = "refs/" ]; then | |
66 | git clone --no-tags --depth=1 "${mgitrepo}" "$MODULES_GIT_DIR" | |
67 | (cd "$MODULES_GIT_DIR" && git fetch origin "${mversion}" && git checkout FETCH_HEAD) | |
68 | else | |
69 | git clone --no-tags --depth=1 -b "${mversion}" "${mgitrepo}" "$MODULES_GIT_DIR" | |
70 | fi | |
5a196804 MJ |
71 | } |
72 | ||
73 | # Checkout a shallow kernel tree of the specified tag | |
74 | git_clone_linux_sources() { | |
75 | mkdir -p "$LINUX_GIT_DIR" | |
76 | git clone --depth=1 -b "${ktag}" --reference "$LINUX_GIT_REF_REPO_DIR" "${kgitrepo}" "$LINUX_GIT_DIR" | |
77 | } | |
7e02032c | 78 | |
7e02032c | 79 | |
5a196804 MJ |
80 | # Export the kernel sources from the git repo |
81 | git_export_linux_sources() { | |
82 | cd "$LINUX_GIT_DIR" | |
83 | git archive "${ktag}" | tar -x -C "$LINUX_SRCOBJ_DIR" | |
84 | } | |
85 | ||
86 | ||
87 | # Upload the tar archive to the object store | |
88 | upload_archive_obj() { | |
89 | s3cmd -c "$WORKSPACE/.s3cfg" put "$WORKSPACE/$obj_name" "$obj_url_prefix/" | |
90 | rm -f "$WORKSPACE/$obj_name" | |
91 | } | |
92 | ||
93 | ||
94 | extract_archive_obj() { | |
95 | tar -xf "$WORKSPACE/$obj_name" -C "$LINUX_OBJ_DIR" | |
96 | rm -f "$WORKSPACE/$obj_name" | |
97 | } | |
98 | ||
99 | ||
100 | tar_archive_obj() { | |
101 | cd "$LINUX_OBJ_DIR" | |
102 | tar -cf "$WORKSPACE/$obj_name" -I pbzip2 . | |
103 | cd - | |
104 | } | |
105 | ||
6c0b2710 KS |
106 | list_gccs() { |
107 | local gccs | |
108 | gccs=() | |
109 | IFS=: read -r -a path_array <<< "$PATH" | |
110 | while read -r gcc ; do | |
111 | gccs+=("$gcc") | |
112 | done < <(find "${path_array[@]}" -maxdepth 1 -regex '.*/gcc-[0-9\.]+$' -printf '%f\n' | sort -t- -k2 -V -r) | |
113 | echo "${gccs[@]}" | |
114 | } | |
115 | ||
5a196804 MJ |
116 | # Find the most recent GCC version supported by the kernel sources |
117 | select_compiler() { | |
118 | local selected_cc | |
119 | ||
120 | cd "$LINUX_SRCOBJ_DIR" | |
121 | ||
122 | kversion=$(make -s kernelversion) | |
123 | ||
124 | set +e | |
125 | ||
6c0b2710 | 126 | for cc in $(list_gccs) ; do |
5a196804 MJ |
127 | if "${CROSS_COMPILE:-}${cc}" -I include/ -D__LINUX_COMPILER_H -D__LINUX_COMPILER_TYPES_H -E include/linux/compiler-gcc.h; then |
128 | selected_cc="$cc" | |
129 | break | |
130 | fi | |
131 | done | |
132 | ||
133 | set -e | |
134 | ||
135 | if [ "x$selected_cc" = "x" ]; then | |
136 | echo "Found no suitable compiler." | |
137 | exit 1 | |
138 | fi | |
139 | ||
1d5a0a3c MJ |
140 | # Force gcc-4.8 for kernels before 3.18 |
141 | if { verlt "$kversion" "3.18"; }; then | |
23db2292 | 142 | selected_cc=gcc-4.8 |
7e02032c MJ |
143 | fi |
144 | ||
425e4992 MJ |
145 | if [ "$selected_cc" != "gcc-4.8" ]; then |
146 | # Older kernel Makefiles do not expect the compiler to default to PIE | |
147 | KAFLAGS="-fno-pie" | |
c45b04df | 148 | KCFLAGS="-fno-pie -no-pie -fno-stack-protector" |
425e4992 MJ |
149 | KCPPFLAGS="-fno-pie" |
150 | export KAFLAGS KCFLAGS KCPPFLAGS | |
151 | fi | |
152 | ||
5a196804 | 153 | export CC="${CROSS_COMPILE:-}${selected_cc}" |
1d5a0a3c | 154 | export HOSTCC="${selected_cc}" |
5a196804 MJ |
155 | |
156 | cd - | |
157 | } | |
158 | ||
159 | ||
160 | build_linux_kernel() { | |
161 | cd "$LINUX_SRCOBJ_DIR" | |
162 | ||
163 | kversion=$(make -s kernelversion) | |
164 | ||
7e02032c | 165 | # Generate kernel configuration |
a1ae361e | 166 | case "$ktag" in |
7e02032c | 167 | Ubuntu*) |
39961776 | 168 | if [ "${cross_arch}" = "powerpc" ]; then |
5a196804 | 169 | if vergte "${kversion}" "4.10"; then |
39961776 MJ |
170 | echo "Ubuntu removed big endian powerpc configuration from kernel >= 4.10. Don't try to build it." |
171 | exit 0 | |
172 | fi | |
173 | fi | |
af101606 MJ |
174 | |
175 | # Disable riscv64 config generation, we don't have a toolchain on bionic | |
176 | sed -i 's/riscv64 //' debian.master/etc/kernelconfig | |
177 | ||
0c1bde3d KS |
178 | fakeroot debian/rules clean KW_DEFCONFIG_DIR=. |
179 | ||
073dc82c | 180 | # Hack for kernel Ubuntu-hwe-5.8 |
0c1bde3d KS |
181 | # The debian/control file is produced by the clean target above, so this |
182 | # check needs to happen afterwards. | |
183 | if [ ! -f "debian/compat" ] && ! grep -q debhelper-compat debian/control; then | |
073dc82c MJ |
184 | echo "10" > "debian/compat" |
185 | fi | |
186 | ||
0c1bde3d KS |
187 | # genconfigs check can fail in certain cases, eg. when a more recent |
188 | # compiler exposes kernel configuration flags which aren't set in the | |
189 | # Ubuntu annotations. | |
190 | # In any case, the configuration will be updated with any missing values | |
191 | # later in our build script. | |
192 | fakeroot debian/rules genconfigs KW_DEFCONFIG_DIR=. do_skip_checks=true | |
5a196804 | 193 | cp CONFIGS/"${ubuntu_config}" .config |
7e02032c | 194 | ;; |
c45b04df | 195 | |
7e02032c | 196 | *) |
16844a6d MJ |
197 | # Force 32bit build on i386, default is 64bit |
198 | if [ "$arch" = "i386" ]; then | |
5a196804 MJ |
199 | export ARCH="i386" |
200 | fi | |
201 | ||
202 | # allyesconfig is mostly broken for kernels of the 2.6 series | |
203 | if verlt "$kversion" "3.0"; then | |
204 | vanilla_config="defconfig" | |
7a76a4d0 MJ |
205 | fi |
206 | ||
5a196804 | 207 | make "${vanilla_config}" |
7e02032c MJ |
208 | ;; |
209 | esac | |
210 | ||
53b51a15 | 211 | # oldnoconfig was renamed in 4.19 |
5a196804 | 212 | if vergte "$kversion" "4.19"; then |
53b51a15 | 213 | update_conf_target="olddefconfig" |
5a196804 | 214 | else |
53b51a15 | 215 | update_conf_target="oldnoconfig" |
5a196804 MJ |
216 | fi |
217 | ||
218 | # Fix 'defined(@array)' was removed from recent perl | |
219 | if [ -f "kernel/timeconst.pl" ]; then | |
220 | sed -i 's/defined(\@\(.*\))/@\1/' kernel/timeconst.pl | |
221 | fi | |
222 | ||
223 | # Fix syntax of inline assembly which is confused with C++11 raw strings on gcc >= 5 | |
53b51a15 | 224 | if [ "$HOSTCC" != "gcc-4.8" ]; then |
5a196804 MJ |
225 | if [ -f "arch/x86/kvm/svm.c" ]; then |
226 | sed -i 's/ R"/ R "/g; s/"R"/" R "/g' arch/x86/kvm/svm.c | |
227 | fi | |
228 | ||
229 | if [ -f "arch/x86/kvm/vmx.c" ]; then | |
230 | sed -i 's/ R"/ R "/g; s/"R"/" R "/g' arch/x86/kvm/vmx.c | |
231 | fi | |
232 | fi | |
233 | ||
53b51a15 MJ |
234 | # Newer binutils don't accept 3 operand 'cmp' instructions on ppc64 |
235 | # Convert them to 'cmpw' which was previously done silently | |
236 | if verlt "$kversion" "4.9"; then | |
237 | 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/" | |
238 | 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/" | |
239 | sed -i "s/\$pie \-o \"\$ofile\"/\$pie --no-dynamic-linker -o \"\$ofile\"/" arch/powerpc/boot/wrapper | |
240 | fi | |
241 | ||
5a196804 MJ |
242 | # Fix a typo in v2.6.36.x |
243 | if [ -f "arch/x86/kernel/entry_64.S" ]; then | |
244 | sed -i 's/END(do_hypervisor_callback)/END(xen_do_hypervisor_callback)/' arch/x86/kernel/entry_64.S | |
245 | fi | |
246 | ||
53b51a15 MJ |
247 | # Fix compiler switch in vdso Makefile for 2.6.36 to 2.6.36.2 |
248 | if { vergte "$kversion" "2.6.36" && verlte "$kversion" "2.6.36.3"; }; then | |
249 | sed -i 's/-m elf_x86_64/-m64/' arch/x86/vdso/Makefile | |
250 | sed -i 's/-m elf_i386/-m32/' arch/x86/vdso/Makefile | |
251 | fi | |
252 | ||
5a196804 MJ |
253 | # Fix kernel < 3.0 with gcc >= 4.7 |
254 | if verlt "$kversion" "3.0"; then | |
255 | sed -i '/linux\/compiler.h/a #include <linux\/linkage.h> \/* For asmregparm *\/' arch/x86/include/asm/ptrace.h | |
256 | sed -i 's/extern long syscall_trace_enter/extern asmregparm long syscall_trace_enter/' arch/x86/include/asm/ptrace.h | |
257 | sed -i 's/extern void syscall_trace_leave/extern asmregparm void syscall_trace_leave/' arch/x86/include/asm/ptrace.h | |
258 | echo "header-y += linkage.h" >> include/linux/Kbuild | |
259 | fi | |
260 | ||
7e02032c | 261 | # GCC 4.8 |
53b51a15 MJ |
262 | if [ "$HOSTCC" == "gcc-4.8" ]; then |
263 | scripts/config --disable CONFIG_CC_STACKPROTECTOR_STRONG | |
264 | fi | |
7e02032c MJ |
265 | |
266 | # Don't try to sign modules | |
53b51a15 | 267 | scripts/config --disable CONFIG_MODULE_SIG |
7e02032c | 268 | |
9ef18fa2 | 269 | # Disable kernel stack frame correctness validation, introduced in 4.6.0 and currently fails |
53b51a15 | 270 | scripts/config --disable CONFIG_STACK_VALIDATION |
5a196804 MJ |
271 | |
272 | # Cause problems with inline assembly on i386 | |
53b51a15 | 273 | scripts/config --disable CONFIG_DEBUG_SECTION_MISMATCH |
5a196804 | 274 | |
1d5a0a3c | 275 | # Don't build samples, they are broken on some kernel releases |
53b51a15 MJ |
276 | scripts/config --disable CONFIG_SAMPLES |
277 | scripts/config --disable CONFIG_BUILD_DOCSRC | |
c45b04df MJ |
278 | |
279 | # Disable kcov | |
53b51a15 | 280 | scripts/config --disable CONFIG_KCOV |
c45b04df MJ |
281 | |
282 | # Broken on some RT kernels | |
53b51a15 | 283 | scripts/config --disable CONFIG_HYPERV |
1d5a0a3c | 284 | |
1e300ea9 | 285 | # Broken drivers |
53b51a15 MJ |
286 | scripts/config --disable CONFIG_RAPIDIO_TSI721 |
287 | scripts/config --disable CONFIG_SGI_XP | |
288 | scripts/config --disable CONFIG_MFD_WM8994 | |
289 | scripts/config --disable CONFIG_DRM_RADEON | |
290 | scripts/config --disable CONFIG_SND_SOC_WM5100 | |
1e300ea9 | 291 | |
5a196804 MJ |
292 | # IGBVF won't build with recent gcc on 2.6.38.x |
293 | if { vergte "$kversion" "2.6.37" && verlt "$kversion" "2.6.38"; }; then | |
53b51a15 | 294 | scripts/config --disable CONFIG_IGBVF |
5a196804 | 295 | fi |
9ef18fa2 | 296 | |
c72041eb MJ |
297 | # Don't fail the build on warnings |
298 | scripts/config --disable CONFIG_WERROR | |
299 | ||
51fa2ab3 | 300 | # Set required options |
53b51a15 MJ |
301 | scripts/config --enable CONFIG_TRACEPOINTS |
302 | scripts/config --enable CONFIG_KALLSYMS | |
303 | scripts/config --enable CONFIG_HIGH_RES_TIMERS | |
304 | scripts/config --enable CONFIG_KPROBES | |
305 | scripts/config --enable CONFIG_FTRACE | |
306 | scripts/config --enable CONFIG_BLK_DEV_IO_TRACE | |
307 | scripts/config --enable CONFIG_KALLSYMS_ALL | |
308 | scripts/config --enable CONFIG_HAVE_SYSCALL_TRACEPOINTS | |
309 | scripts/config --enable CONFIG_PERF_EVENTS | |
310 | scripts/config --enable CONFIG_EVENT_TRACING | |
311 | scripts/config --enable CONFIG_KRETPROBES | |
7e02032c | 312 | |
1d28ffce MJ |
313 | # FIXME: disable objtool on vmlinux, it OOMs on allyesconfig |
314 | sed -i 's/objtool_link vmlinux.o//' scripts/link-vmlinux.sh || true | |
81e61c58 MJ |
315 | # Starting with v6.1-rc6 |
316 | sed -i 's/^objtool-enabled := .*/objtool-enabled := /' scripts/Makefile.vmlinux_o || true | |
1d28ffce | 317 | |
ba1a68bc MJ |
318 | # Disable SORTTAB |
319 | sed -i 's/is_enabled CONFIG_BUILDTIME_TABLE_SORT/is_enabled CONFIG_NONEXISTANT/' scripts/link-vmlinux.sh || true | |
320 | ||
7a76a4d0 | 321 | # Debug |
5a196804 MJ |
322 | #cat .config |
323 | ||
324 | make "$update_conf_target" CC="$CC" | |
325 | make -j"$NPROC" CC="$CC" | |
326 | ||
c45b04df | 327 | krelease=$(make -s kernelrelease CC="$CC") |
5a196804 MJ |
328 | |
329 | # Save the kernel and modules | |
330 | mkdir -p "$LINUX_INSTOBJ_DIR/boot" | |
53b51a15 | 331 | make INSTALL_MOD_PATH="$LINUX_INSTOBJ_DIR" INSTALL_MOD_STRIP=1 modules_install CC="$CC" |
f4c112e8 | 332 | make INSTALL_MOD_PATH="$LINUX_INSTOBJ_DIR" INSTALL_PATH="$LINUX_INSTOBJ_DIR/boot" install CC="$CC" |
5a196804 MJ |
333 | rm -f "$LINUX_INSTOBJ_DIR/lib/modules/${krelease}/source" "$LINUX_INSTOBJ_DIR/lib/modules/${krelease}/build" |
334 | ln -s ../../../../sources "$LINUX_INSTOBJ_DIR/lib/modules/${krelease}/source" | |
335 | ln -s ../../../../sources "$LINUX_INSTOBJ_DIR/lib/modules/${krelease}/source" | |
336 | } | |
337 | ||
338 | ||
339 | extract_distro_headers() { | |
340 | ||
341 | # Enter linux source dir | |
342 | cd "${LINUX_SRCOBJ_DIR}" | |
343 | ||
344 | ||
345 | # For RT kernels, copy version file | |
346 | if [ -s localversion-rt ]; then | |
347 | cp -a localversion-rt "${LINUX_HDROBJ_DIR}" | |
348 | fi | |
349 | ||
350 | # Copy all Makefile related stuff | |
351 | find . -path './include/*' -prune \ | |
352 | -o -path './scripts/*' -prune -o -type f \ | |
353 | \( -name 'Makefile*' -o -name 'Kconfig*' -o -name 'Kbuild*' -o \ | |
354 | -name '*.sh' -o -name '*.pl' -o -name '*.lds' \) \ | |
355 | -print | cpio -pd --preserve-modification-time "${LINUX_HDROBJ_DIR}" | |
356 | ||
357 | # Copy base scripts and include dirs | |
358 | cp -a scripts include "${LINUX_HDROBJ_DIR}" | |
7e02032c | 359 | |
5a196804 MJ |
360 | # Copy arch includes |
361 | (find arch -name include -type d -print0 | \ | |
362 | xargs -0 -n1 -i: find : -type f) | \ | |
363 | cpio -pd --preserve-modification-time "${LINUX_HDROBJ_DIR}" | |
364 | ||
365 | # Copy arch scripts | |
366 | (find arch -name scripts -type d -print0 | \ | |
367 | xargs -0 -n1 -i: find : -type f) | \ | |
368 | cpio -pd --preserve-modification-time "${LINUX_HDROBJ_DIR}" | |
369 | ||
370 | # Cleanup scripts | |
371 | rm -f "${LINUX_HDROBJ_DIR}/scripts/*.o" | |
372 | rm -f "${LINUX_HDROBJ_DIR}/scripts/*/*.o" | |
373 | ||
04873cc3 | 374 | # On powerpc 32bits this object is required to link modules |
5a196804 | 375 | if [ "${karch}" = "powerpc" ]; then |
10528202 MJ |
376 | if [ "x$(scripts/config -s CONFIG_PPC64)" = "xy" ] && vergte "${kversion}" "5.4"; then |
377 | : | |
378 | else | |
04873cc3 MJ |
379 | cp -a --parents arch/powerpc/lib/crtsavres.[So] "${LINUX_HDROBJ_DIR}/" |
380 | fi | |
5a196804 MJ |
381 | fi |
382 | ||
383 | # On arm64 between 4.13 and 1.15 this object is required to build with ftrace support | |
384 | if [ "${karch}" = "arm64" ]; then | |
385 | if [ -f "arch/arm64/kernel/ftrace-mod.S" ]; then | |
386 | cp -a --parents arch/arm64/kernel/ftrace-mod.[So] "${LINUX_HDROBJ_DIR}/" | |
387 | fi | |
388 | fi | |
389 | ||
390 | # Newer kernels need objtool to build modules when CONFIG_STACK_VALIDATION=y | |
391 | if [ -f tools/objtool/objtool ]; then | |
392 | cp -a --parents tools/objtool/objtool "${LINUX_HDROBJ_DIR}/" | |
393 | fi | |
394 | ||
395 | if [ -f "arch/x86/kernel/macros.s" ]; then | |
396 | cp -a --parents arch/x86/kernel/macros.s "${LINUX_HDROBJ_DIR}/" | |
397 | fi | |
398 | ||
399 | # Copy modules related stuff, if available | |
400 | if [ -s Module.symvers ]; then | |
401 | cp Module.symvers "${LINUX_HDROBJ_DIR}" | |
402 | fi | |
403 | ||
404 | if [ -s System.map ]; then | |
405 | cp System.map "${LINUX_HDROBJ_DIR}" | |
406 | fi | |
407 | ||
408 | if [ -s Module.markers ]; then | |
409 | cp Module.markers "${LINUX_HDROBJ_DIR}" | |
410 | fi | |
411 | ||
412 | # Copy config file | |
413 | cp .config "${LINUX_HDROBJ_DIR}" | |
414 | ||
415 | # Make sure the Makefile and version.h have a matching timestamp so that | |
416 | # external modules can be built | |
417 | if [ -s "${LINUX_HDROBJ_DIR}/include/generated/uapi/linux/version.h" ]; then | |
418 | touch -r "${LINUX_HDROBJ_DIR}/Makefile" "${LINUX_HDROBJ_DIR}/include/generated/uapi/linux/version.h" | |
419 | elif [ -s "${LINUX_HDROBJ_DIR}/include/linux/version.h" ]; then | |
420 | touch -r "${LINUX_HDROBJ_DIR}/Makefile" "${LINUX_HDROBJ_DIR}/include/linux/version.h" | |
421 | else | |
422 | echo "Missing version.h" | |
423 | exit 1 | |
424 | fi | |
425 | touch -r "${LINUX_HDROBJ_DIR}/.config" "${LINUX_HDROBJ_DIR}/include/generated/autoconf.h" | |
426 | ||
427 | # Copy .config to include/config/auto.conf so "make prepare" is unnecessary. | |
780f6285 MJ |
428 | if [ ! -f "${LINUX_HDROBJ_DIR}/include/config/auto.conf" ]; then |
429 | cp "${LINUX_HDROBJ_DIR}/.config" "${LINUX_HDROBJ_DIR}/include/config/auto.conf" | |
430 | fi | |
5a196804 MJ |
431 | |
432 | # Finally clean the object files from the full source tree | |
433 | make clean | |
434 | ||
435 | # And regen the modules support files | |
436 | make modules_prepare CC="$CC" | |
51fa2ab3 | 437 | |
04873cc3 | 438 | # On powerpc 32bits this object is required to link modules |
d815b018 | 439 | if [ "${karch}" = "powerpc" ]; then |
10528202 MJ |
440 | if [ "x$(scripts/config -s CONFIG_PPC64)" = "xy" ] && vergte "${kversion}" "5.4"; then |
441 | : | |
442 | else | |
04873cc3 MJ |
443 | make arch/powerpc/lib/crtsavres.o CC="$CC" |
444 | fi | |
d815b018 MJ |
445 | fi |
446 | ||
7a76a4d0 | 447 | # On arm64 between 4.13 and 4.15 this object is required to build with ftrace support |
a1ae361e | 448 | if [ "${karch}" = "arm64" ]; then |
c236528e | 449 | if [ -f "arch/arm64/kernel/ftrace-mod.S" ]; then |
5a196804 | 450 | make arch/arm64/kernel/ftrace-mod.o CC="$CC" |
a1ae361e MJ |
451 | fi |
452 | fi | |
453 | ||
7e02032c | 454 | # Version specific tasks |
a1ae361e | 455 | case "$ktag" in |
7e02032c MJ |
456 | Ubuntu*) |
457 | # Add Ubuntu ABI number to kernel headers, this is normally done by the packaging code | |
a1ae361e | 458 | ABINUM="$(echo "$ktag" | grep -P -o 'Ubuntu-(lts-)?.*-\K\d+(?=\..*)')" |
5a196804 MJ |
459 | echo "#define UTS_UBUNTU_RELEASE_ABI $ABINUM" >> include/generated/utsrelease.h |
460 | echo "#define UTS_UBUNTU_RELEASE_ABI $ABINUM" >> "${LINUX_HDROBJ_DIR}/include/generated/utsrelease.h" | |
7e02032c MJ |
461 | ;; |
462 | esac | |
7e02032c MJ |
463 | } |
464 | ||
465 | ||
339db64d MJ |
466 | build_modules() { |
467 | ||
5a196804 MJ |
468 | local kdir="$1" |
469 | local outdir="$2" | |
470 | local kversion | |
471 | ||
472 | kversion=$(make -C "$LINUX_HDROBJ_DIR" -s kernelversion) | |
339db64d | 473 | |
2456f978 MJ |
474 | # Try to catch some compatibility problems by turning some |
475 | # warnings into errors. | |
999a2aa0 | 476 | #export KCFLAGS="$KCFLAGS -Wall -Werror" |
2456f978 | 477 | |
339db64d | 478 | # Enter lttng-modules source dir |
5a196804 | 479 | cd "${MODULES_GIT_DIR}" |
339db64d MJ |
480 | |
481 | # kernels 3.10 to 3.10.13 and 3.11 to 3.11.2 introduce a deadlock in the | |
482 | # timekeeping subsystem. We want those build to fail. | |
5a196804 MJ |
483 | if { vergte "$kversion" "3.10" && verlte "$kversion" "3.10.13"; } || \ |
484 | { vergte "$kversion" "3.11" && verlte "$kversion" "3.11.2"; }; then | |
339db64d MJ |
485 | |
486 | set +e | |
487 | ||
488 | # Build modules | |
51fa2ab3 | 489 | KERNELDIR="${kdir}" make -j"${NPROC}" V=1 CC="$CC" |
0f71a764 | 490 | ret=$? |
339db64d | 491 | |
5a196804 MJ |
492 | set -e |
493 | ||
339db64d | 494 | # We expect this build to fail, if it doesn't, fail the job. |
0f71a764 | 495 | if [ "$ret" -eq 0 ]; then |
e9b44189 | 496 | echo "This build should have failed." |
339db64d MJ |
497 | exit 1 |
498 | fi | |
499 | ||
500 | # We have to publish at least one file or the build will fail | |
5a196804 | 501 | echo "This kernel is broken, there is a deadlock in the timekeeping subsystem." > "${outdir}/BROKEN.txt.ko" |
339db64d | 502 | |
5a196804 | 503 | KERNELDIR="${kdir}" make clean |
7e02032c | 504 | |
339db64d MJ |
505 | else # Regular build |
506 | ||
507 | # Build modules against full kernel sources | |
51fa2ab3 | 508 | KERNELDIR="${kdir}" make -j"${NPROC}" V=1 CC="$CC" |
339db64d MJ |
509 | |
510 | # Install modules to build dir | |
5a196804 | 511 | KERNELDIR="${kdir}" make INSTALL_MOD_PATH="${outdir}" modules_install |
339db64d MJ |
512 | |
513 | # Clean build dir | |
5a196804 | 514 | KERNELDIR="${kdir}" make clean |
339db64d MJ |
515 | fi |
516 | } | |
517 | ||
518 | ||
519 | ## MAIN ## | |
520 | ||
f3d8604b MJ |
521 | # Use all CPU cores |
522 | NPROC=$(nproc) | |
523 | ||
5a196804 MJ |
524 | MODULES_GIT_DIR="${WORKSPACE}/src/lttng-modules" |
525 | LINUX_GIT_DIR="${WORKSPACE}/src/linux" | |
339db64d | 526 | |
5a196804 MJ |
527 | LINUX_OBJ_DIR="${WORKSPACE}/linux" |
528 | LINUX_SRCOBJ_DIR="${LINUX_OBJ_DIR}/sources" | |
529 | LINUX_HDROBJ_DIR="${LINUX_OBJ_DIR}/headers" | |
530 | LINUX_INSTOBJ_DIR="${LINUX_OBJ_DIR}/install" | |
339db64d | 531 | |
5a196804 MJ |
532 | MODULES_OUTPUT_KSRC_DIR="${WORKSPACE}/build/lttng-modules-ksrc" |
533 | MODULES_OUTPUT_KHDR_DIR="${WORKSPACE}/build/lttng-modules-khdr" | |
339db64d | 534 | |
5a196804 MJ |
535 | LINUX_GIT_REF_REPO_DIR="$HOME/gitcache/linux-stable.git/" |
536 | ||
537 | OBJ_STORE_URL="s3://jenkins" | |
538 | ||
539 | cd "$WORKSPACE" | |
540 | ||
541 | # Create build directories | |
542 | mkdir -p "${LINUX_SRCOBJ_DIR}" "${LINUX_HDROBJ_DIR}" "${LINUX_INSTOBJ_DIR}" "${MODULES_OUTPUT_KSRC_DIR}" "${MODULES_OUTPUT_KHDR_DIR}" | |
543 | ||
544 | git_clone_modules_sources | |
339db64d | 545 | |
7e02032c | 546 | # Setup cross compile env if available |
39961776 | 547 | if [ "x${cross_arch}" != "x" ]; then |
7e02032c MJ |
548 | |
549 | case "$cross_arch" in | |
550 | "armhf") | |
551 | karch="arm" | |
552 | cross_compile="arm-linux-gnueabihf-" | |
53b51a15 | 553 | vanilla_config="imx_v6_v7_defconfig" |
7e02032c MJ |
554 | ubuntu_config="armhf-config.flavour.generic" |
555 | ;; | |
556 | ||
557 | "arm64") | |
558 | karch="arm64" | |
559 | cross_compile="aarch64-linux-gnu-" | |
53b51a15 | 560 | vanilla_config="defconfig" |
7e02032c MJ |
561 | ubuntu_config="arm64-config.flavour.generic" |
562 | ;; | |
563 | ||
564 | "powerpc") | |
565 | karch="powerpc" | |
566 | cross_compile="powerpc-linux-gnu-" | |
e9b44189 | 567 | vanilla_config="ppc44x_defconfig" |
7e02032c MJ |
568 | ubuntu_config="powerpc-config.flavour.powerpc-smp" |
569 | ;; | |
570 | ||
571 | "ppc64el") | |
572 | karch="powerpc" | |
573 | cross_compile="powerpc64le-linux-gnu-" | |
e9b44189 | 574 | vanilla_config="pseries_le_defconfig" |
7e02032c MJ |
575 | ubuntu_config="ppc64el-config.flavour.generic" |
576 | ;; | |
577 | ||
578 | *) | |
51fa2ab3 | 579 | echo "Unsupported cross arch $cross_arch" |
7e02032c MJ |
580 | exit 1 |
581 | ;; | |
582 | esac | |
339db64d | 583 | |
7e02032c MJ |
584 | # Export variables used by Kbuild for cross compilation |
585 | export ARCH="${karch}" | |
586 | export CROSS_COMPILE="${cross_compile}" | |
339db64d | 587 | |
7e02032c | 588 | # Set arch specific values if we are not cross compiling |
39961776 | 589 | elif [ "x${arch}" != "x" ]; then |
e9b44189 | 590 | |
7e02032c | 591 | case "$arch" in |
16844a6d | 592 | "i386") |
7e02032c | 593 | karch="x86" |
e9b44189 | 594 | vanilla_config="allyesconfig" |
7e02032c MJ |
595 | ubuntu_config="i386-config.flavour.generic" |
596 | ;; | |
597 | ||
16844a6d | 598 | "amd64") |
7e02032c | 599 | karch="x86" |
e9b44189 | 600 | vanilla_config="allyesconfig" |
7e02032c MJ |
601 | ubuntu_config="amd64-config.flavour.generic" |
602 | ;; | |
603 | ||
604 | "armhf") | |
605 | karch="arm" | |
e9b44189 | 606 | vanilla_config="allyesconfig" |
7e02032c MJ |
607 | ubuntu_config="armhf-config.flavour.generic" |
608 | ;; | |
609 | ||
610 | "arm64") | |
611 | karch="arm64" | |
e9b44189 | 612 | vanilla_config="allyesconfig" |
7e02032c MJ |
613 | ubuntu_config="arm64-config.flavour.generic" |
614 | ;; | |
615 | ||
616 | "powerpc") | |
617 | karch="powerpc" | |
e9b44189 | 618 | vanilla_config="allyesconfig" |
7e02032c MJ |
619 | ubuntu_config="powerpc-config.flavour.powerpc-smp" |
620 | ;; | |
621 | ||
622 | "ppc64el") | |
623 | karch="powerpc" | |
e9b44189 | 624 | vanilla_config="allyesconfig" |
7e02032c MJ |
625 | ubuntu_config="ppc64el-config.flavour.generic" |
626 | ;; | |
627 | ||
628 | *) | |
629 | echo "Unsupported arch $arch" | |
630 | exit 1 | |
631 | ;; | |
632 | esac | |
633 | else | |
04873cc3 | 634 | echo "No arch or cross_arch specified" |
7e02032c MJ |
635 | exit 1 |
636 | fi | |
339db64d | 637 | |
339db64d | 638 | |
b214d997 | 639 | |
5a196804 MJ |
640 | # First get the kernel build from the object store, or build it, if it's |
641 | # not available. | |
339db64d | 642 | |
5a196804 MJ |
643 | echo "# Setup endpoint |
644 | host_base = obj.internal.efficios.com | |
645 | host_bucket = obj.internal.efficios.com | |
646 | bucket_location = us-east-1 | |
647 | use_https = True | |
7e02032c | 648 | |
5a196804 MJ |
649 | # Setup access keys |
650 | access_key = jenkins | |
651 | secret_key = echo123456 | |
339db64d | 652 | |
5a196804 MJ |
653 | # Enable S3 v4 signature APIs |
654 | signature_v2 = False" > "$WORKSPACE/.s3cfg" | |
339db64d | 655 | |
c45b04df | 656 | url_hash="$(echo -n "$kgitrepo" | md5sum | awk '{ print $1 }')" |
5a196804 | 657 | obj_name="linux.tar.bz2" |
87445931 MJ |
658 | |
659 | if [ "x${cross_arch}" = "x" ]; then | |
447eaf93 | 660 | obj_url_prefix="$OBJ_STORE_URL/linux-build/$url_hash/$ktag/platform-${platform}/$arch/native" |
87445931 | 661 | else |
447eaf93 | 662 | obj_url_prefix="$OBJ_STORE_URL/linux-build/$url_hash/$ktag/platform-${platform}/${cross_arch}" |
87445931 MJ |
663 | fi |
664 | ||
5a196804 | 665 | obj_url="$obj_url_prefix/$obj_name" |
339db64d | 666 | |
5a196804 | 667 | set +e |
e18b6e95 KS |
668 | # In s3cmd 2.3, the return code of get when an object does not exist (64) |
669 | # is different than in 2.2 (12). The return codes of 's3cmd info' are | |
670 | # consistent between 2.2 and 2.3. | |
671 | s3cmd -c "$WORKSPACE/.s3cfg" info "$obj_url" | |
5a196804 MJ |
672 | ret=$? |
673 | set -e | |
339db64d | 674 | |
5a196804 MJ |
675 | case "$ret" in |
676 | "0") | |
e18b6e95 | 677 | s3cmd -c "$WORKSPACE/.s3cfg" get "$obj_url" |
5a196804 MJ |
678 | extract_archive_obj |
679 | ;; | |
a1ae361e | 680 | |
5a196804 MJ |
681 | "12") |
682 | echo "File not found" | |
339db64d | 683 | |
5a196804 MJ |
684 | # Build all the things and upload |
685 | # then finish the module build... | |
339db64d | 686 | |
5a196804 MJ |
687 | git_clone_linux_sources |
688 | git_export_linux_sources | |
339db64d | 689 | |
5a196804 | 690 | select_compiler |
a1ae361e | 691 | |
5a196804 MJ |
692 | ## PREPARE FULL LINUX SOURCE TREE |
693 | build_linux_kernel | |
d138fc44 | 694 | |
5a196804 MJ |
695 | ## EXTRACT DISTRO STYLE KERNEL HEADERS / DEVEL |
696 | extract_distro_headers | |
339db64d | 697 | |
5a196804 | 698 | tar_archive_obj |
339db64d | 699 | |
5a196804 | 700 | upload_archive_obj |
339db64d | 701 | |
5a196804 | 702 | ;; |
339db64d | 703 | |
5a196804 MJ |
704 | *) |
705 | echo "Unknown error? Abort" | |
706 | exit 1 | |
707 | ;; | |
708 | esac | |
339db64d | 709 | |
5a196804 | 710 | select_compiler |
f3d8604b | 711 | |
7e02032c | 712 | ## BUILD modules |
5a196804 MJ |
713 | # Either we downloaded a pre-build kernel or we built it and uploaded |
714 | # the archive for future builds. | |
715 | ||
716 | cd "$WORKSPACE" | |
f3d8604b | 717 | |
339db64d | 718 | # Build modules against full kernel sources |
5a196804 | 719 | build_modules "${LINUX_SRCOBJ_DIR}" "${MODULES_OUTPUT_KSRC_DIR}" |
f3d8604b | 720 | |
339db64d | 721 | # Build modules against kernel headers |
5a196804 | 722 | build_modules "${LINUX_HDROBJ_DIR}" "${MODULES_OUTPUT_KHDR_DIR}" |
f3d8604b | 723 | |
5a196804 MJ |
724 | # Make sure some modules were actually built |
725 | tree "${MODULES_OUTPUT_KSRC_DIR}" | |
726 | if [ "x$(find "${MODULES_OUTPUT_KSRC_DIR}" -name '*.ko*' -printf yes -quit)" != "xyes" ]; then | |
7e02032c MJ |
727 | echo "No modules built!" |
728 | exit 1 | |
729 | fi | |
730 | ||
5a196804 MJ |
731 | tree "${MODULES_OUTPUT_KHDR_DIR}" |
732 | if [ "x$(find "${MODULES_OUTPUT_KHDR_DIR}" -name '*.ko*' -printf yes -quit)" != "xyes" ]; then | |
7e02032c MJ |
733 | echo "No modules built!" |
734 | exit 1 | |
735 | fi | |
b214d997 | 736 | |
f3d8604b | 737 | # EOF |