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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 | ||
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 "${kversion}" "4.10"; then |
39961776 MJ |
161 | echo "Ubuntu removed big endian powerpc configuration from kernel >= 4.10. Don't try to build it." |
162 | exit 0 | |
163 | fi | |
164 | fi | |
af101606 MJ |
165 | |
166 | # Disable riscv64 config generation, we don't have a toolchain on bionic | |
167 | sed -i 's/riscv64 //' debian.master/etc/kernelconfig | |
168 | ||
073dc82c MJ |
169 | # Hack for kernel Ubuntu-hwe-5.8 |
170 | if [ ! -f "debian/compat" ]; then | |
171 | echo "10" > "debian/compat" | |
172 | fi | |
173 | ||
a46abb0a MJ |
174 | fakeroot debian/rules clean KW_DEFCONFIG_DIR=. |
175 | fakeroot debian/rules genconfigs KW_DEFCONFIG_DIR=. | |
5a196804 | 176 | cp CONFIGS/"${ubuntu_config}" .config |
7e02032c | 177 | ;; |
c45b04df | 178 | |
7e02032c | 179 | *) |
16844a6d MJ |
180 | # Force 32bit build on i386, default is 64bit |
181 | if [ "$arch" = "i386" ]; then | |
5a196804 MJ |
182 | export ARCH="i386" |
183 | fi | |
184 | ||
185 | # allyesconfig is mostly broken for kernels of the 2.6 series | |
186 | if verlt "$kversion" "3.0"; then | |
187 | vanilla_config="defconfig" | |
7a76a4d0 MJ |
188 | fi |
189 | ||
5a196804 | 190 | make "${vanilla_config}" |
7e02032c MJ |
191 | ;; |
192 | esac | |
193 | ||
53b51a15 | 194 | # oldnoconfig was renamed in 4.19 |
5a196804 | 195 | if vergte "$kversion" "4.19"; then |
53b51a15 | 196 | update_conf_target="olddefconfig" |
5a196804 | 197 | else |
53b51a15 | 198 | update_conf_target="oldnoconfig" |
5a196804 MJ |
199 | fi |
200 | ||
201 | # Fix 'defined(@array)' was removed from recent perl | |
202 | if [ -f "kernel/timeconst.pl" ]; then | |
203 | sed -i 's/defined(\@\(.*\))/@\1/' kernel/timeconst.pl | |
204 | fi | |
205 | ||
206 | # Fix syntax of inline assembly which is confused with C++11 raw strings on gcc >= 5 | |
53b51a15 | 207 | if [ "$HOSTCC" != "gcc-4.8" ]; then |
5a196804 MJ |
208 | if [ -f "arch/x86/kvm/svm.c" ]; then |
209 | sed -i 's/ R"/ R "/g; s/"R"/" R "/g' arch/x86/kvm/svm.c | |
210 | fi | |
211 | ||
212 | if [ -f "arch/x86/kvm/vmx.c" ]; then | |
213 | sed -i 's/ R"/ R "/g; s/"R"/" R "/g' arch/x86/kvm/vmx.c | |
214 | fi | |
215 | fi | |
216 | ||
53b51a15 MJ |
217 | # Newer binutils don't accept 3 operand 'cmp' instructions on ppc64 |
218 | # Convert them to 'cmpw' which was previously done silently | |
219 | if verlt "$kversion" "4.9"; then | |
220 | 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/" | |
221 | 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/" | |
222 | sed -i "s/\$pie \-o \"\$ofile\"/\$pie --no-dynamic-linker -o \"\$ofile\"/" arch/powerpc/boot/wrapper | |
223 | fi | |
224 | ||
5a196804 MJ |
225 | # Fix a typo in v2.6.36.x |
226 | if [ -f "arch/x86/kernel/entry_64.S" ]; then | |
227 | sed -i 's/END(do_hypervisor_callback)/END(xen_do_hypervisor_callback)/' arch/x86/kernel/entry_64.S | |
228 | fi | |
229 | ||
53b51a15 MJ |
230 | # Fix compiler switch in vdso Makefile for 2.6.36 to 2.6.36.2 |
231 | if { vergte "$kversion" "2.6.36" && verlte "$kversion" "2.6.36.3"; }; then | |
232 | sed -i 's/-m elf_x86_64/-m64/' arch/x86/vdso/Makefile | |
233 | sed -i 's/-m elf_i386/-m32/' arch/x86/vdso/Makefile | |
234 | fi | |
235 | ||
5a196804 MJ |
236 | # Fix kernel < 3.0 with gcc >= 4.7 |
237 | if verlt "$kversion" "3.0"; then | |
238 | sed -i '/linux\/compiler.h/a #include <linux\/linkage.h> \/* For asmregparm *\/' arch/x86/include/asm/ptrace.h | |
239 | sed -i 's/extern long syscall_trace_enter/extern asmregparm long syscall_trace_enter/' arch/x86/include/asm/ptrace.h | |
240 | sed -i 's/extern void syscall_trace_leave/extern asmregparm void syscall_trace_leave/' arch/x86/include/asm/ptrace.h | |
241 | echo "header-y += linkage.h" >> include/linux/Kbuild | |
242 | fi | |
243 | ||
7e02032c | 244 | # GCC 4.8 |
53b51a15 MJ |
245 | if [ "$HOSTCC" == "gcc-4.8" ]; then |
246 | scripts/config --disable CONFIG_CC_STACKPROTECTOR_STRONG | |
247 | fi | |
7e02032c MJ |
248 | |
249 | # Don't try to sign modules | |
53b51a15 | 250 | scripts/config --disable CONFIG_MODULE_SIG |
7e02032c | 251 | |
9ef18fa2 | 252 | # Disable kernel stack frame correctness validation, introduced in 4.6.0 and currently fails |
53b51a15 | 253 | scripts/config --disable CONFIG_STACK_VALIDATION |
5a196804 MJ |
254 | |
255 | # Cause problems with inline assembly on i386 | |
53b51a15 | 256 | scripts/config --disable CONFIG_DEBUG_SECTION_MISMATCH |
5a196804 | 257 | |
1d5a0a3c | 258 | # Don't build samples, they are broken on some kernel releases |
53b51a15 MJ |
259 | scripts/config --disable CONFIG_SAMPLES |
260 | scripts/config --disable CONFIG_BUILD_DOCSRC | |
c45b04df MJ |
261 | |
262 | # Disable kcov | |
53b51a15 | 263 | scripts/config --disable CONFIG_KCOV |
c45b04df MJ |
264 | |
265 | # Broken on some RT kernels | |
53b51a15 | 266 | scripts/config --disable CONFIG_HYPERV |
1d5a0a3c | 267 | |
1e300ea9 | 268 | # Broken drivers |
53b51a15 MJ |
269 | scripts/config --disable CONFIG_RAPIDIO_TSI721 |
270 | scripts/config --disable CONFIG_SGI_XP | |
271 | scripts/config --disable CONFIG_MFD_WM8994 | |
272 | scripts/config --disable CONFIG_DRM_RADEON | |
273 | scripts/config --disable CONFIG_SND_SOC_WM5100 | |
1e300ea9 | 274 | |
5a196804 MJ |
275 | # IGBVF won't build with recent gcc on 2.6.38.x |
276 | if { vergte "$kversion" "2.6.37" && verlt "$kversion" "2.6.38"; }; then | |
53b51a15 | 277 | scripts/config --disable CONFIG_IGBVF |
5a196804 | 278 | fi |
9ef18fa2 | 279 | |
c72041eb MJ |
280 | # Don't fail the build on warnings |
281 | scripts/config --disable CONFIG_WERROR | |
282 | ||
51fa2ab3 | 283 | # Set required options |
53b51a15 MJ |
284 | scripts/config --enable CONFIG_TRACEPOINTS |
285 | scripts/config --enable CONFIG_KALLSYMS | |
286 | scripts/config --enable CONFIG_HIGH_RES_TIMERS | |
287 | scripts/config --enable CONFIG_KPROBES | |
288 | scripts/config --enable CONFIG_FTRACE | |
289 | scripts/config --enable CONFIG_BLK_DEV_IO_TRACE | |
290 | scripts/config --enable CONFIG_KALLSYMS_ALL | |
291 | scripts/config --enable CONFIG_HAVE_SYSCALL_TRACEPOINTS | |
292 | scripts/config --enable CONFIG_PERF_EVENTS | |
293 | scripts/config --enable CONFIG_EVENT_TRACING | |
294 | scripts/config --enable CONFIG_KRETPROBES | |
7e02032c | 295 | |
1d28ffce MJ |
296 | # FIXME: disable objtool on vmlinux, it OOMs on allyesconfig |
297 | sed -i 's/objtool_link vmlinux.o//' scripts/link-vmlinux.sh || true | |
81e61c58 MJ |
298 | # Starting with v6.1-rc6 |
299 | sed -i 's/^objtool-enabled := .*/objtool-enabled := /' scripts/Makefile.vmlinux_o || true | |
1d28ffce | 300 | |
ba1a68bc MJ |
301 | # Disable SORTTAB |
302 | sed -i 's/is_enabled CONFIG_BUILDTIME_TABLE_SORT/is_enabled CONFIG_NONEXISTANT/' scripts/link-vmlinux.sh || true | |
303 | ||
7a76a4d0 | 304 | # Debug |
5a196804 MJ |
305 | #cat .config |
306 | ||
307 | make "$update_conf_target" CC="$CC" | |
308 | make -j"$NPROC" CC="$CC" | |
309 | ||
c45b04df | 310 | krelease=$(make -s kernelrelease CC="$CC") |
5a196804 MJ |
311 | |
312 | # Save the kernel and modules | |
313 | mkdir -p "$LINUX_INSTOBJ_DIR/boot" | |
53b51a15 | 314 | make INSTALL_MOD_PATH="$LINUX_INSTOBJ_DIR" INSTALL_MOD_STRIP=1 modules_install CC="$CC" |
f4c112e8 | 315 | make INSTALL_MOD_PATH="$LINUX_INSTOBJ_DIR" INSTALL_PATH="$LINUX_INSTOBJ_DIR/boot" install CC="$CC" |
5a196804 MJ |
316 | rm -f "$LINUX_INSTOBJ_DIR/lib/modules/${krelease}/source" "$LINUX_INSTOBJ_DIR/lib/modules/${krelease}/build" |
317 | ln -s ../../../../sources "$LINUX_INSTOBJ_DIR/lib/modules/${krelease}/source" | |
318 | ln -s ../../../../sources "$LINUX_INSTOBJ_DIR/lib/modules/${krelease}/source" | |
319 | } | |
320 | ||
321 | ||
322 | extract_distro_headers() { | |
323 | ||
324 | # Enter linux source dir | |
325 | cd "${LINUX_SRCOBJ_DIR}" | |
326 | ||
327 | ||
328 | # For RT kernels, copy version file | |
329 | if [ -s localversion-rt ]; then | |
330 | cp -a localversion-rt "${LINUX_HDROBJ_DIR}" | |
331 | fi | |
332 | ||
333 | # Copy all Makefile related stuff | |
334 | find . -path './include/*' -prune \ | |
335 | -o -path './scripts/*' -prune -o -type f \ | |
336 | \( -name 'Makefile*' -o -name 'Kconfig*' -o -name 'Kbuild*' -o \ | |
337 | -name '*.sh' -o -name '*.pl' -o -name '*.lds' \) \ | |
338 | -print | cpio -pd --preserve-modification-time "${LINUX_HDROBJ_DIR}" | |
339 | ||
340 | # Copy base scripts and include dirs | |
341 | cp -a scripts include "${LINUX_HDROBJ_DIR}" | |
7e02032c | 342 | |
5a196804 MJ |
343 | # Copy arch includes |
344 | (find arch -name include -type d -print0 | \ | |
345 | xargs -0 -n1 -i: find : -type f) | \ | |
346 | cpio -pd --preserve-modification-time "${LINUX_HDROBJ_DIR}" | |
347 | ||
348 | # Copy arch scripts | |
349 | (find arch -name scripts -type d -print0 | \ | |
350 | xargs -0 -n1 -i: find : -type f) | \ | |
351 | cpio -pd --preserve-modification-time "${LINUX_HDROBJ_DIR}" | |
352 | ||
353 | # Cleanup scripts | |
354 | rm -f "${LINUX_HDROBJ_DIR}/scripts/*.o" | |
355 | rm -f "${LINUX_HDROBJ_DIR}/scripts/*/*.o" | |
356 | ||
04873cc3 | 357 | # On powerpc 32bits this object is required to link modules |
5a196804 | 358 | if [ "${karch}" = "powerpc" ]; then |
10528202 MJ |
359 | if [ "x$(scripts/config -s CONFIG_PPC64)" = "xy" ] && vergte "${kversion}" "5.4"; then |
360 | : | |
361 | else | |
04873cc3 MJ |
362 | cp -a --parents arch/powerpc/lib/crtsavres.[So] "${LINUX_HDROBJ_DIR}/" |
363 | fi | |
5a196804 MJ |
364 | fi |
365 | ||
366 | # On arm64 between 4.13 and 1.15 this object is required to build with ftrace support | |
367 | if [ "${karch}" = "arm64" ]; then | |
368 | if [ -f "arch/arm64/kernel/ftrace-mod.S" ]; then | |
369 | cp -a --parents arch/arm64/kernel/ftrace-mod.[So] "${LINUX_HDROBJ_DIR}/" | |
370 | fi | |
371 | fi | |
372 | ||
373 | # Newer kernels need objtool to build modules when CONFIG_STACK_VALIDATION=y | |
374 | if [ -f tools/objtool/objtool ]; then | |
375 | cp -a --parents tools/objtool/objtool "${LINUX_HDROBJ_DIR}/" | |
376 | fi | |
377 | ||
378 | if [ -f "arch/x86/kernel/macros.s" ]; then | |
379 | cp -a --parents arch/x86/kernel/macros.s "${LINUX_HDROBJ_DIR}/" | |
380 | fi | |
381 | ||
382 | # Copy modules related stuff, if available | |
383 | if [ -s Module.symvers ]; then | |
384 | cp Module.symvers "${LINUX_HDROBJ_DIR}" | |
385 | fi | |
386 | ||
387 | if [ -s System.map ]; then | |
388 | cp System.map "${LINUX_HDROBJ_DIR}" | |
389 | fi | |
390 | ||
391 | if [ -s Module.markers ]; then | |
392 | cp Module.markers "${LINUX_HDROBJ_DIR}" | |
393 | fi | |
394 | ||
395 | # Copy config file | |
396 | cp .config "${LINUX_HDROBJ_DIR}" | |
397 | ||
398 | # Make sure the Makefile and version.h have a matching timestamp so that | |
399 | # external modules can be built | |
400 | if [ -s "${LINUX_HDROBJ_DIR}/include/generated/uapi/linux/version.h" ]; then | |
401 | touch -r "${LINUX_HDROBJ_DIR}/Makefile" "${LINUX_HDROBJ_DIR}/include/generated/uapi/linux/version.h" | |
402 | elif [ -s "${LINUX_HDROBJ_DIR}/include/linux/version.h" ]; then | |
403 | touch -r "${LINUX_HDROBJ_DIR}/Makefile" "${LINUX_HDROBJ_DIR}/include/linux/version.h" | |
404 | else | |
405 | echo "Missing version.h" | |
406 | exit 1 | |
407 | fi | |
408 | touch -r "${LINUX_HDROBJ_DIR}/.config" "${LINUX_HDROBJ_DIR}/include/generated/autoconf.h" | |
409 | ||
410 | # Copy .config to include/config/auto.conf so "make prepare" is unnecessary. | |
780f6285 MJ |
411 | if [ ! -f "${LINUX_HDROBJ_DIR}/include/config/auto.conf" ]; then |
412 | cp "${LINUX_HDROBJ_DIR}/.config" "${LINUX_HDROBJ_DIR}/include/config/auto.conf" | |
413 | fi | |
5a196804 MJ |
414 | |
415 | # Finally clean the object files from the full source tree | |
416 | make clean | |
417 | ||
418 | # And regen the modules support files | |
419 | make modules_prepare CC="$CC" | |
51fa2ab3 | 420 | |
04873cc3 | 421 | # On powerpc 32bits this object is required to link modules |
d815b018 | 422 | if [ "${karch}" = "powerpc" ]; then |
10528202 MJ |
423 | if [ "x$(scripts/config -s CONFIG_PPC64)" = "xy" ] && vergte "${kversion}" "5.4"; then |
424 | : | |
425 | else | |
04873cc3 MJ |
426 | make arch/powerpc/lib/crtsavres.o CC="$CC" |
427 | fi | |
d815b018 MJ |
428 | fi |
429 | ||
7a76a4d0 | 430 | # On arm64 between 4.13 and 4.15 this object is required to build with ftrace support |
a1ae361e | 431 | if [ "${karch}" = "arm64" ]; then |
c236528e | 432 | if [ -f "arch/arm64/kernel/ftrace-mod.S" ]; then |
5a196804 | 433 | make arch/arm64/kernel/ftrace-mod.o CC="$CC" |
a1ae361e MJ |
434 | fi |
435 | fi | |
436 | ||
7e02032c | 437 | # Version specific tasks |
a1ae361e | 438 | case "$ktag" in |
7e02032c MJ |
439 | Ubuntu*) |
440 | # Add Ubuntu ABI number to kernel headers, this is normally done by the packaging code | |
a1ae361e | 441 | ABINUM="$(echo "$ktag" | grep -P -o 'Ubuntu-(lts-)?.*-\K\d+(?=\..*)')" |
5a196804 MJ |
442 | echo "#define UTS_UBUNTU_RELEASE_ABI $ABINUM" >> include/generated/utsrelease.h |
443 | echo "#define UTS_UBUNTU_RELEASE_ABI $ABINUM" >> "${LINUX_HDROBJ_DIR}/include/generated/utsrelease.h" | |
7e02032c MJ |
444 | ;; |
445 | esac | |
7e02032c MJ |
446 | } |
447 | ||
448 | ||
339db64d MJ |
449 | build_modules() { |
450 | ||
5a196804 MJ |
451 | local kdir="$1" |
452 | local outdir="$2" | |
453 | local kversion | |
454 | ||
455 | kversion=$(make -C "$LINUX_HDROBJ_DIR" -s kernelversion) | |
339db64d | 456 | |
2456f978 MJ |
457 | # Try to catch some compatibility problems by turning some |
458 | # warnings into errors. | |
999a2aa0 | 459 | #export KCFLAGS="$KCFLAGS -Wall -Werror" |
2456f978 | 460 | |
339db64d | 461 | # Enter lttng-modules source dir |
5a196804 | 462 | cd "${MODULES_GIT_DIR}" |
339db64d MJ |
463 | |
464 | # kernels 3.10 to 3.10.13 and 3.11 to 3.11.2 introduce a deadlock in the | |
465 | # timekeeping subsystem. We want those build to fail. | |
5a196804 MJ |
466 | if { vergte "$kversion" "3.10" && verlte "$kversion" "3.10.13"; } || \ |
467 | { vergte "$kversion" "3.11" && verlte "$kversion" "3.11.2"; }; then | |
339db64d MJ |
468 | |
469 | set +e | |
470 | ||
471 | # Build modules | |
51fa2ab3 | 472 | KERNELDIR="${kdir}" make -j"${NPROC}" V=1 CC="$CC" |
0f71a764 | 473 | ret=$? |
339db64d | 474 | |
5a196804 MJ |
475 | set -e |
476 | ||
339db64d | 477 | # We expect this build to fail, if it doesn't, fail the job. |
0f71a764 | 478 | if [ "$ret" -eq 0 ]; then |
e9b44189 | 479 | echo "This build should have failed." |
339db64d MJ |
480 | exit 1 |
481 | fi | |
482 | ||
483 | # We have to publish at least one file or the build will fail | |
5a196804 | 484 | echo "This kernel is broken, there is a deadlock in the timekeeping subsystem." > "${outdir}/BROKEN.txt.ko" |
339db64d | 485 | |
5a196804 | 486 | KERNELDIR="${kdir}" make clean |
7e02032c | 487 | |
339db64d MJ |
488 | else # Regular build |
489 | ||
490 | # Build modules against full kernel sources | |
51fa2ab3 | 491 | KERNELDIR="${kdir}" make -j"${NPROC}" V=1 CC="$CC" |
339db64d MJ |
492 | |
493 | # Install modules to build dir | |
5a196804 | 494 | KERNELDIR="${kdir}" make INSTALL_MOD_PATH="${outdir}" modules_install |
339db64d MJ |
495 | |
496 | # Clean build dir | |
5a196804 | 497 | KERNELDIR="${kdir}" make clean |
339db64d MJ |
498 | fi |
499 | } | |
500 | ||
501 | ||
502 | ## MAIN ## | |
503 | ||
f3d8604b MJ |
504 | # Use all CPU cores |
505 | NPROC=$(nproc) | |
506 | ||
5a196804 MJ |
507 | MODULES_GIT_DIR="${WORKSPACE}/src/lttng-modules" |
508 | LINUX_GIT_DIR="${WORKSPACE}/src/linux" | |
339db64d | 509 | |
5a196804 MJ |
510 | LINUX_OBJ_DIR="${WORKSPACE}/linux" |
511 | LINUX_SRCOBJ_DIR="${LINUX_OBJ_DIR}/sources" | |
512 | LINUX_HDROBJ_DIR="${LINUX_OBJ_DIR}/headers" | |
513 | LINUX_INSTOBJ_DIR="${LINUX_OBJ_DIR}/install" | |
339db64d | 514 | |
5a196804 MJ |
515 | MODULES_OUTPUT_KSRC_DIR="${WORKSPACE}/build/lttng-modules-ksrc" |
516 | MODULES_OUTPUT_KHDR_DIR="${WORKSPACE}/build/lttng-modules-khdr" | |
339db64d | 517 | |
5a196804 MJ |
518 | LINUX_GIT_REF_REPO_DIR="$HOME/gitcache/linux-stable.git/" |
519 | ||
520 | OBJ_STORE_URL="s3://jenkins" | |
521 | ||
522 | cd "$WORKSPACE" | |
523 | ||
524 | # Create build directories | |
525 | mkdir -p "${LINUX_SRCOBJ_DIR}" "${LINUX_HDROBJ_DIR}" "${LINUX_INSTOBJ_DIR}" "${MODULES_OUTPUT_KSRC_DIR}" "${MODULES_OUTPUT_KHDR_DIR}" | |
526 | ||
527 | git_clone_modules_sources | |
339db64d | 528 | |
7e02032c | 529 | # Setup cross compile env if available |
39961776 | 530 | if [ "x${cross_arch}" != "x" ]; then |
7e02032c MJ |
531 | |
532 | case "$cross_arch" in | |
533 | "armhf") | |
534 | karch="arm" | |
535 | cross_compile="arm-linux-gnueabihf-" | |
53b51a15 | 536 | vanilla_config="imx_v6_v7_defconfig" |
7e02032c MJ |
537 | ubuntu_config="armhf-config.flavour.generic" |
538 | ;; | |
539 | ||
540 | "arm64") | |
541 | karch="arm64" | |
542 | cross_compile="aarch64-linux-gnu-" | |
53b51a15 | 543 | vanilla_config="defconfig" |
7e02032c MJ |
544 | ubuntu_config="arm64-config.flavour.generic" |
545 | ;; | |
546 | ||
547 | "powerpc") | |
548 | karch="powerpc" | |
549 | cross_compile="powerpc-linux-gnu-" | |
e9b44189 | 550 | vanilla_config="ppc44x_defconfig" |
7e02032c MJ |
551 | ubuntu_config="powerpc-config.flavour.powerpc-smp" |
552 | ;; | |
553 | ||
554 | "ppc64el") | |
555 | karch="powerpc" | |
556 | cross_compile="powerpc64le-linux-gnu-" | |
e9b44189 | 557 | vanilla_config="pseries_le_defconfig" |
7e02032c MJ |
558 | ubuntu_config="ppc64el-config.flavour.generic" |
559 | ;; | |
560 | ||
561 | *) | |
51fa2ab3 | 562 | echo "Unsupported cross arch $cross_arch" |
7e02032c MJ |
563 | exit 1 |
564 | ;; | |
565 | esac | |
339db64d | 566 | |
7e02032c MJ |
567 | # Export variables used by Kbuild for cross compilation |
568 | export ARCH="${karch}" | |
569 | export CROSS_COMPILE="${cross_compile}" | |
339db64d | 570 | |
7e02032c | 571 | # Set arch specific values if we are not cross compiling |
39961776 | 572 | elif [ "x${arch}" != "x" ]; then |
e9b44189 | 573 | |
7e02032c | 574 | case "$arch" in |
16844a6d | 575 | "i386") |
7e02032c | 576 | karch="x86" |
e9b44189 | 577 | vanilla_config="allyesconfig" |
7e02032c MJ |
578 | ubuntu_config="i386-config.flavour.generic" |
579 | ;; | |
580 | ||
16844a6d | 581 | "amd64") |
7e02032c | 582 | karch="x86" |
e9b44189 | 583 | vanilla_config="allyesconfig" |
7e02032c MJ |
584 | ubuntu_config="amd64-config.flavour.generic" |
585 | ;; | |
586 | ||
587 | "armhf") | |
588 | karch="arm" | |
e9b44189 | 589 | vanilla_config="allyesconfig" |
7e02032c MJ |
590 | ubuntu_config="armhf-config.flavour.generic" |
591 | ;; | |
592 | ||
593 | "arm64") | |
594 | karch="arm64" | |
e9b44189 | 595 | vanilla_config="allyesconfig" |
7e02032c MJ |
596 | ubuntu_config="arm64-config.flavour.generic" |
597 | ;; | |
598 | ||
599 | "powerpc") | |
600 | karch="powerpc" | |
e9b44189 | 601 | vanilla_config="allyesconfig" |
7e02032c MJ |
602 | ubuntu_config="powerpc-config.flavour.powerpc-smp" |
603 | ;; | |
604 | ||
605 | "ppc64el") | |
606 | karch="powerpc" | |
e9b44189 | 607 | vanilla_config="allyesconfig" |
7e02032c MJ |
608 | ubuntu_config="ppc64el-config.flavour.generic" |
609 | ;; | |
610 | ||
611 | *) | |
612 | echo "Unsupported arch $arch" | |
613 | exit 1 | |
614 | ;; | |
615 | esac | |
616 | else | |
04873cc3 | 617 | echo "No arch or cross_arch specified" |
7e02032c MJ |
618 | exit 1 |
619 | fi | |
339db64d | 620 | |
339db64d | 621 | |
b214d997 | 622 | |
5a196804 MJ |
623 | # First get the kernel build from the object store, or build it, if it's |
624 | # not available. | |
339db64d | 625 | |
5a196804 MJ |
626 | echo "# Setup endpoint |
627 | host_base = obj.internal.efficios.com | |
628 | host_bucket = obj.internal.efficios.com | |
629 | bucket_location = us-east-1 | |
630 | use_https = True | |
7e02032c | 631 | |
5a196804 MJ |
632 | # Setup access keys |
633 | access_key = jenkins | |
634 | secret_key = echo123456 | |
339db64d | 635 | |
5a196804 MJ |
636 | # Enable S3 v4 signature APIs |
637 | signature_v2 = False" > "$WORKSPACE/.s3cfg" | |
339db64d | 638 | |
c45b04df | 639 | url_hash="$(echo -n "$kgitrepo" | md5sum | awk '{ print $1 }')" |
5a196804 | 640 | obj_name="linux.tar.bz2" |
87445931 MJ |
641 | |
642 | if [ "x${cross_arch}" = "x" ]; then | |
643 | obj_url_prefix="$OBJ_STORE_URL/linux-build/$url_hash/$ktag/$arch/native" | |
644 | else | |
645 | obj_url_prefix="$OBJ_STORE_URL/linux-build/$url_hash/$ktag/${cross_arch}" | |
646 | fi | |
647 | ||
5a196804 | 648 | obj_url="$obj_url_prefix/$obj_name" |
339db64d | 649 | |
5a196804 MJ |
650 | set +e |
651 | s3cmd -c "$WORKSPACE/.s3cfg" get "$obj_url" | |
652 | ret=$? | |
653 | set -e | |
339db64d | 654 | |
5a196804 MJ |
655 | case "$ret" in |
656 | "0") | |
657 | extract_archive_obj | |
658 | ;; | |
a1ae361e | 659 | |
5a196804 MJ |
660 | "12") |
661 | echo "File not found" | |
339db64d | 662 | |
5a196804 MJ |
663 | # Build all the things and upload |
664 | # then finish the module build... | |
339db64d | 665 | |
5a196804 MJ |
666 | git_clone_linux_sources |
667 | git_export_linux_sources | |
339db64d | 668 | |
5a196804 | 669 | select_compiler |
a1ae361e | 670 | |
5a196804 MJ |
671 | ## PREPARE FULL LINUX SOURCE TREE |
672 | build_linux_kernel | |
d138fc44 | 673 | |
5a196804 MJ |
674 | ## EXTRACT DISTRO STYLE KERNEL HEADERS / DEVEL |
675 | extract_distro_headers | |
339db64d | 676 | |
5a196804 | 677 | tar_archive_obj |
339db64d | 678 | |
5a196804 | 679 | upload_archive_obj |
339db64d | 680 | |
5a196804 | 681 | ;; |
339db64d | 682 | |
5a196804 MJ |
683 | *) |
684 | echo "Unknown error? Abort" | |
685 | exit 1 | |
686 | ;; | |
687 | esac | |
339db64d | 688 | |
5a196804 | 689 | select_compiler |
f3d8604b | 690 | |
7e02032c | 691 | ## BUILD modules |
5a196804 MJ |
692 | # Either we downloaded a pre-build kernel or we built it and uploaded |
693 | # the archive for future builds. | |
694 | ||
695 | cd "$WORKSPACE" | |
f3d8604b | 696 | |
339db64d | 697 | # Build modules against full kernel sources |
5a196804 | 698 | build_modules "${LINUX_SRCOBJ_DIR}" "${MODULES_OUTPUT_KSRC_DIR}" |
f3d8604b | 699 | |
339db64d | 700 | # Build modules against kernel headers |
5a196804 | 701 | build_modules "${LINUX_HDROBJ_DIR}" "${MODULES_OUTPUT_KHDR_DIR}" |
f3d8604b | 702 | |
5a196804 MJ |
703 | # Make sure some modules were actually built |
704 | tree "${MODULES_OUTPUT_KSRC_DIR}" | |
705 | if [ "x$(find "${MODULES_OUTPUT_KSRC_DIR}" -name '*.ko*' -printf yes -quit)" != "xyes" ]; then | |
7e02032c MJ |
706 | echo "No modules built!" |
707 | exit 1 | |
708 | fi | |
709 | ||
5a196804 MJ |
710 | tree "${MODULES_OUTPUT_KHDR_DIR}" |
711 | if [ "x$(find "${MODULES_OUTPUT_KHDR_DIR}" -name '*.ko*' -printf yes -quit)" != "xyes" ]; then | |
7e02032c MJ |
712 | echo "No modules built!" |
713 | exit 1 | |
714 | fi | |
b214d997 | 715 | |
f3d8604b | 716 | # EOF |