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 |
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="${platforms:-}" | |
30 | fi | |
31 | fi | |
a86b55bc | 32 | |
39961776 MJ |
33 | cross_arch=${cross_arch:-} |
34 | ktag=${ktag:-} | |
5a196804 MJ |
35 | kgitrepo=${kgitrepo:-} |
36 | mversion=${mversion:-} | |
37 | mgitrepo=${mgitrepo:-} | |
a86b55bc KS |
38 | make_args=() |
39 | ||
40 | DEBUG=${DEBUG:-} | |
39961776 | 41 | |
339db64d MJ |
42 | ## FUNCTIONS ## |
43 | ||
f3d8604b MJ |
44 | # Kernel version compare functions |
45 | verlte() { | |
51fa2ab3 | 46 | [ "$1" = "$(printf '%s\n%s' "$1" "$2" | sort -V | head -n1)" ] |
f3d8604b MJ |
47 | } |
48 | ||
49 | verlt() { | |
28b10e79 | 50 | # shellcheck disable=SC2015 |
51fa2ab3 | 51 | [ "$1" = "$2" ] && return 1 || verlte "$1" "$2" |
f3d8604b MJ |
52 | } |
53 | ||
54 | vergte() { | |
51fa2ab3 | 55 | [ "$1" = "$(printf '%s\n%s' "$1" "$2" | sort -V | tail -n1)" ] |
f3d8604b MJ |
56 | } |
57 | ||
58 | vergt() { | |
28b10e79 | 59 | # shellcheck disable=SC2015 |
51fa2ab3 | 60 | [ "$1" = "$2" ] && return 1 || vergte "$1" "$2" |
f3d8604b MJ |
61 | } |
62 | ||
5a196804 MJ |
63 | git_clone_modules_sources() { |
64 | mkdir -p "$MODULES_GIT_DIR" | |
28b10e79 MJ |
65 | |
66 | # If the version starts with "refs/", checkout the specific git ref, otherwise treat it | |
67 | # as a branch name. | |
68 | if [ "${mversion:0:5}" = "refs/" ]; then | |
69 | git clone --no-tags --depth=1 "${mgitrepo}" "$MODULES_GIT_DIR" | |
70 | (cd "$MODULES_GIT_DIR" && git fetch origin "${mversion}" && git checkout FETCH_HEAD) | |
71 | else | |
72 | git clone --no-tags --depth=1 -b "${mversion}" "${mgitrepo}" "$MODULES_GIT_DIR" | |
73 | fi | |
5a196804 MJ |
74 | } |
75 | ||
76 | # Checkout a shallow kernel tree of the specified tag | |
77 | git_clone_linux_sources() { | |
78 | mkdir -p "$LINUX_GIT_DIR" | |
79 | git clone --depth=1 -b "${ktag}" --reference "$LINUX_GIT_REF_REPO_DIR" "${kgitrepo}" "$LINUX_GIT_DIR" | |
80 | } | |
7e02032c | 81 | |
7e02032c | 82 | |
5a196804 MJ |
83 | # Export the kernel sources from the git repo |
84 | git_export_linux_sources() { | |
85 | cd "$LINUX_GIT_DIR" | |
86 | git archive "${ktag}" | tar -x -C "$LINUX_SRCOBJ_DIR" | |
87 | } | |
88 | ||
89 | ||
90 | # Upload the tar archive to the object store | |
91 | upload_archive_obj() { | |
92 | s3cmd -c "$WORKSPACE/.s3cfg" put "$WORKSPACE/$obj_name" "$obj_url_prefix/" | |
93 | rm -f "$WORKSPACE/$obj_name" | |
94 | } | |
95 | ||
96 | ||
97 | extract_archive_obj() { | |
02c6a56a | 98 | tar -xf "$WORKSPACE/$obj_name" -C "$LINUX_OBJ_DIR" -I pbzip2 |
5a196804 MJ |
99 | rm -f "$WORKSPACE/$obj_name" |
100 | } | |
101 | ||
102 | ||
103 | tar_archive_obj() { | |
104 | cd "$LINUX_OBJ_DIR" | |
105 | tar -cf "$WORKSPACE/$obj_name" -I pbzip2 . | |
106 | cd - | |
107 | } | |
108 | ||
6c0b2710 KS |
109 | list_gccs() { |
110 | local gccs | |
111 | gccs=() | |
112 | IFS=: read -r -a path_array <<< "$PATH" | |
113 | while read -r gcc ; do | |
114 | gccs+=("$gcc") | |
115 | done < <(find "${path_array[@]}" -maxdepth 1 -regex '.*/gcc-[0-9\.]+$' -printf '%f\n' | sort -t- -k2 -V -r) | |
116 | echo "${gccs[@]}" | |
117 | } | |
118 | ||
5a196804 MJ |
119 | # Find the most recent GCC version supported by the kernel sources |
120 | select_compiler() { | |
121 | local selected_cc | |
122 | ||
123 | cd "$LINUX_SRCOBJ_DIR" | |
124 | ||
125 | kversion=$(make -s kernelversion) | |
126 | ||
127 | set +e | |
128 | ||
6c0b2710 | 129 | for cc in $(list_gccs) ; do |
a86b55bc KS |
130 | if "${CROSS_COMPILE:-}${cc}" -I include/ -D__LINUX_COMPILER_H -D__LINUX_COMPILER_TYPES_H -E include/linux/compiler-gcc.h; then |
131 | cc_version=$(echo "${cc}" | cut -d'-' -f2) | |
132 | if { verlt "${kversion}" "5.17"; } && { vergt "${cc_version}" "11"; } ; then | |
133 | # Using gcc-12+ with '-Wuse-after-free' breaks the build of older | |
134 | # kernels (in particular, objtool). Some releases on LTS | |
135 | # branches between 4.x and 5.15 can be built with gcc-12. | |
136 | # @see https://lore.kernel.org/lkml/20494.1643237814@turing-police/ | |
137 | # @see https://gitlab.com/linux-kernel/stable/-/commit/52a9dab6d892763b2a8334a568bd4e2c1a6fde66 | |
138 | continue | |
139 | fi | |
5a196804 MJ |
140 | selected_cc="$cc" |
141 | break | |
142 | fi | |
143 | done | |
144 | ||
145 | set -e | |
146 | ||
a86b55bc KS |
147 | # Force gcc-4.8 for kernels before 4.4 |
148 | if { verlt "$kversion" "4.4"; }; then | |
149 | selected_cc='gcc-4.8' | |
150 | fi | |
151 | ||
efdab1b7 | 152 | if [ -z "$selected_cc" ]; then |
5a196804 MJ |
153 | echo "Found no suitable compiler." |
154 | exit 1 | |
155 | fi | |
156 | ||
a86b55bc KS |
157 | _KAFLAGS=() |
158 | _KCFLAGS=() | |
159 | _KCPPFLAGS=() | |
160 | _HOSTCFLAGS=() | |
425e4992 MJ |
161 | if [ "$selected_cc" != "gcc-4.8" ]; then |
162 | # Older kernel Makefiles do not expect the compiler to default to PIE | |
a86b55bc KS |
163 | _KAFLAGS+=(-fno-pie) |
164 | _KCFLAGS+=( | |
165 | -fno-pie | |
166 | -no-pie | |
167 | -fno-stack-protector | |
168 | ) | |
169 | _KCPPFLAGS+=(-fno-pie) | |
170 | fi | |
171 | ||
172 | selected_cc_version="$(echo "${selected_cc}" | cut -d'-' -f2)" | |
173 | if { vergte "${selected_cc_version}" "10"; } && { verlt "${kversion}" "5.10"; } ; then | |
174 | # gcc-10 changed the default from '-fcommon' to '-fno-common', which | |
175 | # causes a linker failure. '-fcommon' can be set on the HOSTCFLAGS | |
176 | # to avoid the issue. | |
177 | # @see https://gitlab.com/linux-kernel/stable/-/commit/e33a814e772cdc36436c8c188d8c42d019fda639 | |
178 | _HOSTCFLAGS+=(-fcommon) | |
179 | fi | |
180 | ||
181 | if [ "${cross_arch:-}" == "armhf" ] ; then | |
182 | if { verlt "${kversion}" "5.14"; } ; then | |
183 | # Work-around for producing instructions that aren't valid for the | |
184 | # default architectures. | |
185 | # Eg. Error: selected processor does not support `cpsid i' in ARM mode | |
186 | _KCFLAGS+=(-march=armv7-a -mfpu=vfpv3-d16) | |
187 | _KCPPFLAGS+=(-march=armv7-a -mfpu=vfpv3-d16) | |
188 | fi | |
189 | fi | |
190 | ||
191 | if { vergt "${selected_cc_version}" "8"; } && { vergte "${kversion}" "4.15"; } && { verlt "${kversion}" "4.17"; } ; then | |
192 | # This was added to -Wall in gcc 9 but some kernels do not include the fixes | |
193 | # @see https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88583 | |
194 | _KCFLAGS+=(-Wno-error=packed-not-aligned) | |
425e4992 MJ |
195 | fi |
196 | ||
a86b55bc KS |
197 | export KAFLAGS="${_KAFLAGS[*]}" |
198 | export KCFLAGS="${_KCFLAGS[*]}" | |
199 | export KCPPFLAGS="${_KCPPFLAGS[*]}" | |
200 | export HOSTCFLAGS="${_HOSTCFLAGS[*]}" | |
5a196804 | 201 | export CC="${CROSS_COMPILE:-}${selected_cc}" |
1d5a0a3c | 202 | export HOSTCC="${selected_cc}" |
5a196804 | 203 | |
a86b55bc KS |
204 | make_args=( |
205 | CC="${CC}" | |
206 | HOSTCC="${HOSTCC}" | |
207 | HOSTCFLAGS="${HOSTCFLAGS:-}" | |
208 | ) | |
209 | if [ -n "${DEBUG}" ] ; then | |
210 | make_args+=( | |
211 | V=1 | |
212 | ) | |
213 | fi | |
5a196804 MJ |
214 | cd - |
215 | } | |
216 | ||
a86b55bc KS |
217 | patch_linux_kernel() { |
218 | local commit_hash | |
219 | commit_hash="$1" | |
220 | set +e | |
221 | git -C "${LINUX_GIT_REF_REPO_DIR}" format-patch -n1 --stdout "${commit_hash}" | patch -p1 | |
222 | set -e | |
223 | if [ "$?" -gt 1 ] ; then | |
224 | echo "Serious issue patching" | |
225 | exit 1 | |
226 | fi | |
227 | } | |
5a196804 MJ |
228 | |
229 | build_linux_kernel() { | |
230 | cd "$LINUX_SRCOBJ_DIR" | |
231 | ||
a86b55bc | 232 | kversion=$(make -s kernelversion "${make_args[@]}") |
23ebcd4b | 233 | pahole_version="$(pahole --version | tr -d 'v')" |
a86b55bc KS |
234 | |
235 | if { verlt "${kversion}" "3.3"; } && [ "${vanilla_config}" = "imx_v6_v7_defconfig" ] ; then | |
236 | # imx_v6_v7 didn't exist before 06965c39b4c63933fa0a1cde2237ef85477c5655 | |
237 | if { verlt "${kversion}" "3.2"; } ; then | |
238 | vanilla_config='mx5_defconfig' | |
239 | else | |
240 | vanilla_config='mx51_defconfig' | |
241 | fi | |
242 | fi | |
243 | ||
244 | if { verlt "${kversion}" "3.13"; } && [ "${vanilla_config}" = "pseries_le_defconfig" ] ; then | |
245 | # pseries_le_deconfig was introduced in f53e462e907cbaed29c49c0f10f5b8f614e1bf1d | |
246 | vanilla_config='pseries_defconfig' | |
247 | fi | |
5a196804 | 248 | |
7e02032c | 249 | # Generate kernel configuration |
a1ae361e | 250 | case "$ktag" in |
7e02032c | 251 | Ubuntu*) |
39961776 | 252 | if [ "${cross_arch}" = "powerpc" ]; then |
5a196804 | 253 | if vergte "${kversion}" "4.10"; then |
39961776 MJ |
254 | echo "Ubuntu removed big endian powerpc configuration from kernel >= 4.10. Don't try to build it." |
255 | exit 0 | |
256 | fi | |
257 | fi | |
af101606 | 258 | |
0c1bde3d KS |
259 | fakeroot debian/rules clean KW_DEFCONFIG_DIR=. |
260 | ||
073dc82c | 261 | # Hack for kernel Ubuntu-hwe-5.8 |
0c1bde3d KS |
262 | # The debian/control file is produced by the clean target above, so this |
263 | # check needs to happen afterwards. | |
264 | if [ ! -f "debian/compat" ] && ! grep -q debhelper-compat debian/control; then | |
073dc82c MJ |
265 | echo "10" > "debian/compat" |
266 | fi | |
267 | ||
0c1bde3d KS |
268 | # genconfigs check can fail in certain cases, eg. when a more recent |
269 | # compiler exposes kernel configuration flags which aren't set in the | |
270 | # Ubuntu annotations. | |
271 | # In any case, the configuration will be updated with any missing values | |
272 | # later in our build script. | |
273 | fakeroot debian/rules genconfigs KW_DEFCONFIG_DIR=. do_skip_checks=true | |
5a196804 | 274 | cp CONFIGS/"${ubuntu_config}" .config |
7e02032c | 275 | ;; |
c45b04df | 276 | |
7e02032c | 277 | *) |
16844a6d MJ |
278 | # Force 32bit build on i386, default is 64bit |
279 | if [ "$arch" = "i386" ]; then | |
5a196804 MJ |
280 | export ARCH="i386" |
281 | fi | |
282 | ||
a86b55bc | 283 | make "${vanilla_config}" "${make_args[@]}" |
7e02032c MJ |
284 | ;; |
285 | esac | |
286 | ||
a86b55bc KS |
287 | if [ "${vanilla_config}" = "pseries_defconfig" ] && [ "${cross_arch}" = "ppc64el" ] ; then |
288 | # @see diff <(git show v3.13:arch/powerpc/configs/pseries_defconfig) <(git show v3.13:arch/powerpc/configs/pseries_le_defconfig) | |
289 | scripts/config --enable CONFIG_CPU_LITTLE_ENDIAN | |
290 | scripts/config --enable CONFIG_CMA | |
291 | scripts/config --disable CONFIG_XMON_DEFAULT | |
292 | # scripts/config --disable CONFIG_VIRTUALIZATION | |
293 | # scripts/config --disable CONFIG_KVM_BOOK3S_64 | |
294 | scripts/config --disable CONFIG_KVM_BOOK3S_64_HV | |
295 | fi | |
296 | ||
53b51a15 | 297 | # oldnoconfig was renamed in 4.19 |
5a196804 | 298 | if vergte "$kversion" "4.19"; then |
53b51a15 | 299 | update_conf_target="olddefconfig" |
5a196804 | 300 | else |
53b51a15 | 301 | update_conf_target="oldnoconfig" |
5a196804 MJ |
302 | fi |
303 | ||
304 | # Fix 'defined(@array)' was removed from recent perl | |
305 | if [ -f "kernel/timeconst.pl" ]; then | |
306 | sed -i 's/defined(\@\(.*\))/@\1/' kernel/timeconst.pl | |
307 | fi | |
308 | ||
309 | # Fix syntax of inline assembly which is confused with C++11 raw strings on gcc >= 5 | |
53b51a15 | 310 | if [ "$HOSTCC" != "gcc-4.8" ]; then |
5a196804 MJ |
311 | if [ -f "arch/x86/kvm/svm.c" ]; then |
312 | sed -i 's/ R"/ R "/g; s/"R"/" R "/g' arch/x86/kvm/svm.c | |
313 | fi | |
314 | ||
315 | if [ -f "arch/x86/kvm/vmx.c" ]; then | |
316 | sed -i 's/ R"/ R "/g; s/"R"/" R "/g' arch/x86/kvm/vmx.c | |
317 | fi | |
318 | fi | |
319 | ||
a86b55bc KS |
320 | if { verlt "${kversion}" "5.11"; } && { vergte "${kversion}" "4.10"; } ; then |
321 | # Binutils > 2.35 strips empty symbol tables, causing obltool to fail | |
322 | # in certain cases when files are empty. | |
323 | # @see https://gitlab.com/linux-kernel/stable/-/commit/1d489151e9f9d1647110277ff77282fe4d96d09b | |
324 | # | |
325 | # There doesn't seem to be any LD/AS/AR flags to control this behaviour, | |
326 | # therefore patching tools/objtool/elf.c is attempted. | |
327 | patch_linux_kernel 1d489151e9f9d1647110277ff77282fe4d96d09b | |
328 | if { verlt "${kversion}" "4.18"; } ; then | |
329 | patch_linux_kernel e81e0724432542af8d8c702c31e9d82f57b1ff31 | |
330 | fi | |
331 | fi | |
332 | ||
333 | if { vergt "${selected_cc_version}" "7"; } && { vergte "${kversion}" "4.15"; } && { verlt "${kversion}" "4.17"; } ; then | |
334 | # Builds fail due to -Werror=restrict in pager.o and str_error_r.o | |
335 | if { verlt "${kversion}" "4.16"; } ; then | |
336 | # This is patched since objtool's Makefile doesn't respect HOSTCFLAGS | |
337 | # @see https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ad343a98e74e85aa91d844310e797f96fee6983b | |
338 | patch_linux_kernel ad343a98e74e85aa91d844310e797f96fee6983b | |
339 | fi | |
340 | if { verlt "${kversion}" "4.17"; } ; then | |
341 | # This is patched since objtool's Makefile doesn't respect HOSTCFLAGS | |
342 | # @see https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=854e55ad289ef8888e7991f0ada85d5846f5afb9 | |
343 | patch_linux_kernel 854e55ad289ef8888e7991f0ada85d5846f5afb9 | |
344 | fi | |
345 | ||
ad23f63b KS |
346 | fi |
347 | ||
348 | if { vergt "${selected_cc_version}" "9"; } && { verlt "${kversion}" "5.6"; } ; then | |
a86b55bc KS |
349 | # Duplicate decalarations of __force_order |
350 | # @see https://gitlab.com/linux-kernel/stable/-/commit/df6d4f9db79c1a5d6f48b59db35ccd1e9ff9adfc | |
ad23f63b | 351 | patch_linux_kernel df6d4f9db79c1a5d6f48b59db35ccd1e9ff9adfc |
a86b55bc KS |
352 | # However, kaslr_64.c doesn't exit in 4.15, 4.16, it's named pagetable.c |
353 | if [ -f arch/x86/boot/compressed/pagetable.c ] ; then | |
354 | sed -i '/^unsigned long __force_order;$/d' arch/x86/boot/compressed/pagetable.c | |
355 | fi | |
356 | fi | |
357 | ||
358 | if { vergte "${kversion}" "4.15"; } && { verlt "${kversion}" "4.18"; } ; then | |
359 | # Some old kernels fail to build when make is too new | |
360 | # @see https://gitlab.com/linux-kernel/stable/-/commit/9feeb638cde083c737e295c0547f1b4f28e99583 | |
361 | patch_linux_kernel 9564a8cf422d7b58f6e857e3546d346fa970191e | |
362 | # @see https://gitlab.com/linux-kernel/stable/-/commit/9feeb638cde083c737e295c0547f1b4f28e99583 | |
363 | patch_linux_kernel 9feeb638cde083c737e295c0547f1b4f28e99583 | |
364 | fi | |
365 | ||
7b15f9fa KS |
366 | if { vergte "${kversion}" "4.12"; } && { verlt "${kversion}" "4.19"; } ; then |
367 | # Old kernels can fail to build while on newer host kernels with errors | |
368 | # such as: | |
369 | # In file included from scripts/selinux/genheaders/genheaders.c:19: | |
370 | # ./security/selinux/include/classmap.h:249:2: error: #error New address family defined, please update secclass_map. | |
a86b55bc KS |
371 | # @see https://gitlab.com/linux-kernel/stable/-/commit/dfbd199a7cfe3e3cd8531e1353cdbd7175bfbc5e |
372 | # | |
373 | patch_linux_kernel dfbd199a7cfe3e3cd8531e1353cdbd7175bfbc5e | |
374 | fi | |
375 | ||
376 | if { vergte "${kversion}" "3.18"; } && { verlt "${kversion}" "4.4"; } ; then | |
377 | # Compatibility with binutils >= ~ 2.31 | |
378 | patch_linux_kernel b21ebf2fb4cde1618915a97cc773e287ff49173e | |
379 | fi | |
380 | ||
381 | # The above patch only partially applies linux 3.17, and has been, so a | |
382 | # rebased version is used instead. | |
383 | if { vergte "${kversion}" "3.17"; } && { verlt "${kversion}" "3.18"; } ; then | |
384 | cat <<'EOF' | patch -p1 | |
385 | diff --git a/arch/x86/kernel/machine_kexec_64.c b/arch/x86/kernel/machine_kexec_64.c | |
386 | index 48598105..0652c5b6 100644 | |
387 | --- a/arch/x86/kernel/machine_kexec_64.c | |
388 | +++ b/arch/x86/kernel/machine_kexec_64.c | |
389 | @@ -516,6 +516,7 @@ int arch_kexec_apply_relocations_add(const Elf64_Ehdr *ehdr, | |
390 | goto overflow; | |
391 | break; | |
392 | case R_X86_64_PC32: | |
393 | + case R_X86_64_PLT32: | |
394 | value -= (u64)address; | |
395 | *(u32 *)location = value; | |
396 | break; | |
397 | diff --git a/arch/x86/kernel/module.c b/arch/x86/kernel/module.c | |
398 | index e69f9882..7c6bc9fe 100644 | |
399 | --- a/arch/x86/kernel/module.c | |
400 | +++ b/arch/x86/kernel/module.c | |
401 | @@ -180,6 +180,7 @@ int apply_relocate_add(Elf64_Shdr *sechdrs, | |
402 | goto overflow; | |
403 | break; | |
404 | case R_X86_64_PC32: | |
405 | + case R_X86_64_PLT32: | |
406 | val -= (u64)loc; | |
407 | *(u32 *)loc = val; | |
408 | #if 0 | |
409 | diff --git a/arch/x86/tools/relocs.c b/arch/x86/tools/relocs.c | |
410 | index bbb1d225..8deeacbc 100644 | |
411 | --- a/arch/x86/tools/relocs.c | |
412 | +++ b/arch/x86/tools/relocs.c | |
413 | @@ -763,6 +763,7 @@ static int do_reloc64(struct section *sec, Elf_Rel *rel, ElfW(Sym) *sym, | |
414 | switch (r_type) { | |
415 | case R_X86_64_NONE: | |
416 | case R_X86_64_PC32: | |
417 | + case R_X86_64_PLT32: | |
418 | /* | |
419 | * NONE can be ignored and PC relative relocations don't | |
420 | * need to be adjusted. | |
421 | EOF | |
422 | fi | |
423 | ||
4d7942d1 | 424 | if ( { vergte "${kversion}" "3.14"; } && { verlt "${kversion}" "4.4"; } ) || |
a86b55bc KS |
425 | ( { vergte "${kversion}" "4.15"; } && { verlt "${kversion}" "4.17"; } ); then |
426 | # While the original motivation of this patch is for fixing builds using | |
4d7942d1 | 427 | # clang, the same error occurs between linux >= 3.14 and < 4.4, and in |
a86b55bc KS |
428 | # 4.15, 4.16. |
429 | # | |
430 | # This patch only partially applies due to changes in kernel/Makefile, | |
431 | # so a supplementary patch is needed | |
432 | # | |
433 | # Without this patch, builds fail with | |
434 | # Cannot find symbol for section 2: .text. | |
435 | # kernel/elfcore.o: failed | |
436 | # | |
437 | # @see https://github.com/linuxppc/issues/issues/388 | |
438 | # @see https://lore.kernel.org/lkml/20201204165742.3815221-2-arnd@kernel.org/ | |
439 | # | |
440 | patch_linux_kernel 6e7b64b9dd6d96537d816ea07ec26b7dedd397b9 | |
441 | if grep -q elfcore.o kernel/Makefile ; then | |
442 | sed -i '/^.* += elfcore.o$/d' kernel/Makefile | |
443 | fi | |
444 | fi | |
9bbfa9db MJ |
445 | # Same as above for the v4.4 branch |
446 | if ( { vergte "${kversion}" "4.4"; } && { verlt "${kversion}" "4.4.257"; } ); then | |
447 | patch_linux_kernel 3140b0740b31cc63cf2ee08bc3f746b423eb068d | |
448 | if grep -q elfcore.o kernel/Makefile ; then | |
449 | sed -i '/^.* += elfcore.o$/d' kernel/Makefile | |
450 | fi | |
451 | fi | |
a86b55bc | 452 | |
15ef760e MJ |
453 | if { vergte "${kversion}" "4.5"; } && { verlt "${kversion}" "4.8"; } ; then |
454 | # Kernels between v4.5 and v4.8 built with gcc >= 8 on arm will hit an | |
455 | # assembler error : | |
456 | # | |
457 | # kernel/.tmp_fork.s: Assembler messages: | |
458 | # kernel/.tmp_fork.s:1790: Error: .err encountered | |
459 | # | |
460 | # @see https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85745 | |
461 | # | |
462 | patch_linux_kernel 9f73bd8bb445e0cbe4bcef6d4cfc788f1e184007 | |
463 | fi | |
464 | ||
53b51a15 MJ |
465 | # Newer binutils don't accept 3 operand 'cmp' instructions on ppc64 |
466 | # Convert them to 'cmpw' which was previously done silently | |
467 | if verlt "$kversion" "4.9"; then | |
468 | 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/" | |
469 | 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/" | |
470 | sed -i "s/\$pie \-o \"\$ofile\"/\$pie --no-dynamic-linker -o \"\$ofile\"/" arch/powerpc/boot/wrapper | |
471 | fi | |
472 | ||
5a196804 MJ |
473 | # Fix a typo in v2.6.36.x |
474 | if [ -f "arch/x86/kernel/entry_64.S" ]; then | |
475 | sed -i 's/END(do_hypervisor_callback)/END(xen_do_hypervisor_callback)/' arch/x86/kernel/entry_64.S | |
476 | fi | |
477 | ||
53b51a15 MJ |
478 | # Fix compiler switch in vdso Makefile for 2.6.36 to 2.6.36.2 |
479 | if { vergte "$kversion" "2.6.36" && verlte "$kversion" "2.6.36.3"; }; then | |
480 | sed -i 's/-m elf_x86_64/-m64/' arch/x86/vdso/Makefile | |
481 | sed -i 's/-m elf_i386/-m32/' arch/x86/vdso/Makefile | |
482 | fi | |
483 | ||
5a196804 MJ |
484 | # Fix kernel < 3.0 with gcc >= 4.7 |
485 | if verlt "$kversion" "3.0"; then | |
486 | sed -i '/linux\/compiler.h/a #include <linux\/linkage.h> \/* For asmregparm *\/' arch/x86/include/asm/ptrace.h | |
487 | sed -i 's/extern long syscall_trace_enter/extern asmregparm long syscall_trace_enter/' arch/x86/include/asm/ptrace.h | |
488 | sed -i 's/extern void syscall_trace_leave/extern asmregparm void syscall_trace_leave/' arch/x86/include/asm/ptrace.h | |
489 | echo "header-y += linkage.h" >> include/linux/Kbuild | |
490 | fi | |
491 | ||
a86b55bc KS |
492 | if [ "${cross_arch}" = "powerpc" ] ; then |
493 | if { vergte "${kversion}" "4.15"; } && { verlt "${kversion}" "4.16"; } ; then | |
494 | # Avoid register errors such as | |
495 | # aes_generic.c:(.text+0x4e0): undefined reference to `_restgpr_31_x' | |
496 | # @see https://gitlab.com/linux-kernel/stable/-/commit/148b974deea927f5dbb6c468af2707b488bfa2de | |
497 | make_args+=( | |
498 | CFLAGS_aes_generic.o='' | |
499 | ) | |
500 | fi | |
501 | fi | |
502 | ||
23ebcd4b KS |
503 | if [ "$(scripts/config --state CONFIG_DEBUG_INFO_BTF)" == "y" ] && |
504 | { vergte "${pahole_version}" "1.24"; } && | |
505 | { vergte "${kversion}" "5.10"; } && { verlt "${kversion}" "6.0"; } ;then | |
506 | # Some kernels Eg. Ubuntu-hwe-5.13-5.13.0-52.59_20.04.1 | |
507 | # fail with the following error: | |
508 | # BTFIDS vmlinux | |
509 | # FAILED: load BTF from vmlinux: Invalid argument | |
510 | # | |
511 | # When CONFIG_DEBUG_INFO_BTF is set, certain versions of pahole require | |
512 | # `--skip_encoding_btf_enum64` to be passed as the kernel doesn't define | |
513 | # BTF_KIND_ENUM64. | |
514 | # | |
515 | # Introduced in 341dfcf8d78eaa3a2dc96dea06f0392eb2978364 (~v5.10) | |
516 | # @see https://lore.kernel.org/bpf/20220825171620.cioobudss6ovyrkc@altlinux.org/t/ | |
517 | # | |
518 | if [ -f "scripts/pahole-flags.sh" ] ; then | |
519 | sed -i 's/ -J ${PAHOLE_FLAGS} / -J ${PAHOLE_FLAGS} --skip_encoding_btf_enum64 /' scripts/link-vmlinux.sh | |
520 | else | |
521 | sed -i 's/ -J ${extra_paholeopt} / -J ${extra_paholeopt} --skip_encoding_btf_enum64 /' scripts/link-vmlinux.sh | |
522 | fi | |
523 | fi | |
524 | ||
7e02032c | 525 | # GCC 4.8 |
53b51a15 | 526 | if [ "$HOSTCC" == "gcc-4.8" ]; then |
a86b55bc KS |
527 | scripts/config --disable CONFIG_CC_STACKPROTECTOR_STRONG |
528 | scripts/config --disable CONFIG_PPC_OF_BOOT_TRAMPOLINE | |
53b51a15 | 529 | fi |
7e02032c MJ |
530 | |
531 | # Don't try to sign modules | |
53b51a15 | 532 | scripts/config --disable CONFIG_MODULE_SIG |
7e02032c | 533 | |
9ef18fa2 | 534 | # Disable kernel stack frame correctness validation, introduced in 4.6.0 and currently fails |
53b51a15 | 535 | scripts/config --disable CONFIG_STACK_VALIDATION |
5a196804 MJ |
536 | |
537 | # Cause problems with inline assembly on i386 | |
53b51a15 | 538 | scripts/config --disable CONFIG_DEBUG_SECTION_MISMATCH |
5a196804 | 539 | |
1d5a0a3c | 540 | # Don't build samples, they are broken on some kernel releases |
53b51a15 MJ |
541 | scripts/config --disable CONFIG_SAMPLES |
542 | scripts/config --disable CONFIG_BUILD_DOCSRC | |
c45b04df MJ |
543 | |
544 | # Disable kcov | |
53b51a15 | 545 | scripts/config --disable CONFIG_KCOV |
c45b04df MJ |
546 | |
547 | # Broken on some RT kernels | |
53b51a15 | 548 | scripts/config --disable CONFIG_HYPERV |
1d5a0a3c | 549 | |
1e300ea9 | 550 | # Broken drivers |
53b51a15 MJ |
551 | scripts/config --disable CONFIG_RAPIDIO_TSI721 |
552 | scripts/config --disable CONFIG_SGI_XP | |
553 | scripts/config --disable CONFIG_MFD_WM8994 | |
554 | scripts/config --disable CONFIG_DRM_RADEON | |
555 | scripts/config --disable CONFIG_SND_SOC_WM5100 | |
a9aea01c KS |
556 | # More recent compiler optimizations (from gcc 8 onwards )expose build errors |
557 | # with netronome on older kernels. | |
558 | # Observed in 4.11-rt, 4.15-4.17, 5.0-rt - 5.16-rt | |
559 | # It seems easier to disable the driver than to attempt patching. | |
560 | # Eg. | |
561 | # In function ‘ur_load_imm_any’, | |
562 | # inlined from ‘jeq_imm’ at drivers/net/ethernet/netronome/nfp/bpf/jit.c:3146:13: | |
563 | # ./include/linux/compiler.h:350:45: error: call to ‘__compiletime_assert_1062’ declared with attribute error: FIELD_FIT: value too large for the field | |
564 | # 350 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) | |
565 | # | |
566 | scripts/config --disable CONFIG_NET_VENDOR_NETRONOME | |
567 | # Eg. | |
568 | # In function ‘memcpy’, | |
569 | # inlined from ‘kszphy_get_strings’ at drivers/net/phy/micrel.c:664:3: | |
570 | # ./include/linux/string.h:305:25: error: call to ‘__read_overflow2’ declared with attribute error: detected read beyond size of object passed as 2nd parameter | |
571 | # 305 | __read_overflow2(); | |
572 | # | ^~~~~~~~~~~~~~~~~~ | |
573 | # make[3]: *** [scripts/Makefile.build:308: drivers/net/phy/micrel.o] Error 1 | |
574 | # | |
575 | scripts/config --disable CONFIG_MICREL_PHY | |
576 | ||
1e300ea9 | 577 | |
5a196804 MJ |
578 | # IGBVF won't build with recent gcc on 2.6.38.x |
579 | if { vergte "$kversion" "2.6.37" && verlt "$kversion" "2.6.38"; }; then | |
53b51a15 | 580 | scripts/config --disable CONFIG_IGBVF |
5a196804 | 581 | fi |
9ef18fa2 | 582 | |
c72041eb MJ |
583 | # Don't fail the build on warnings |
584 | scripts/config --disable CONFIG_WERROR | |
a86b55bc | 585 | scripts/config --enable CONFIG_PPC_DISABLE_WERROR |
c72041eb | 586 | |
51fa2ab3 | 587 | # Set required options |
53b51a15 MJ |
588 | scripts/config --enable CONFIG_TRACEPOINTS |
589 | scripts/config --enable CONFIG_KALLSYMS | |
590 | scripts/config --enable CONFIG_HIGH_RES_TIMERS | |
591 | scripts/config --enable CONFIG_KPROBES | |
592 | scripts/config --enable CONFIG_FTRACE | |
593 | scripts/config --enable CONFIG_BLK_DEV_IO_TRACE | |
594 | scripts/config --enable CONFIG_KALLSYMS_ALL | |
595 | scripts/config --enable CONFIG_HAVE_SYSCALL_TRACEPOINTS | |
596 | scripts/config --enable CONFIG_PERF_EVENTS | |
597 | scripts/config --enable CONFIG_EVENT_TRACING | |
598 | scripts/config --enable CONFIG_KRETPROBES | |
7e02032c | 599 | |
a86b55bc KS |
600 | if [ -n "${DEBUG}" ] ; then |
601 | cat .config | |
602 | fi | |
5a196804 | 603 | |
a86b55bc KS |
604 | make "$update_conf_target" "${make_args[@]}" |
605 | make -j"$NPROC" "${make_args[@]}" | |
5a196804 | 606 | |
80eda7bb | 607 | krelease=$(make -s kernelrelease "${make_args[@]}") |
5a196804 MJ |
608 | |
609 | # Save the kernel and modules | |
610 | mkdir -p "$LINUX_INSTOBJ_DIR/boot" | |
a86b55bc KS |
611 | make INSTALL_MOD_PATH="$LINUX_INSTOBJ_DIR" INSTALL_MOD_STRIP=1 modules_install "${make_args[@]}" |
612 | make INSTALL_MOD_PATH="$LINUX_INSTOBJ_DIR" INSTALL_PATH="$LINUX_INSTOBJ_DIR/boot" install "${make_args[@]}" | |
5a196804 MJ |
613 | rm -f "$LINUX_INSTOBJ_DIR/lib/modules/${krelease}/source" "$LINUX_INSTOBJ_DIR/lib/modules/${krelease}/build" |
614 | ln -s ../../../../sources "$LINUX_INSTOBJ_DIR/lib/modules/${krelease}/source" | |
615 | ln -s ../../../../sources "$LINUX_INSTOBJ_DIR/lib/modules/${krelease}/source" | |
616 | } | |
617 | ||
618 | ||
619 | extract_distro_headers() { | |
620 | ||
621 | # Enter linux source dir | |
622 | cd "${LINUX_SRCOBJ_DIR}" | |
623 | ||
624 | ||
625 | # For RT kernels, copy version file | |
626 | if [ -s localversion-rt ]; then | |
627 | cp -a localversion-rt "${LINUX_HDROBJ_DIR}" | |
628 | fi | |
629 | ||
630 | # Copy all Makefile related stuff | |
631 | find . -path './include/*' -prune \ | |
632 | -o -path './scripts/*' -prune -o -type f \ | |
633 | \( -name 'Makefile*' -o -name 'Kconfig*' -o -name 'Kbuild*' -o \ | |
634 | -name '*.sh' -o -name '*.pl' -o -name '*.lds' \) \ | |
635 | -print | cpio -pd --preserve-modification-time "${LINUX_HDROBJ_DIR}" | |
636 | ||
637 | # Copy base scripts and include dirs | |
638 | cp -a scripts include "${LINUX_HDROBJ_DIR}" | |
7e02032c | 639 | |
5a196804 MJ |
640 | # Copy arch includes |
641 | (find arch -name include -type d -print0 | \ | |
efdab1b7 | 642 | xargs -0 -n1 -I '{}' find '{}' -type f) | \ |
5a196804 MJ |
643 | cpio -pd --preserve-modification-time "${LINUX_HDROBJ_DIR}" |
644 | ||
645 | # Copy arch scripts | |
646 | (find arch -name scripts -type d -print0 | \ | |
efdab1b7 | 647 | xargs -0 -n1 -I '{}' find '{}' -type f) | \ |
5a196804 MJ |
648 | cpio -pd --preserve-modification-time "${LINUX_HDROBJ_DIR}" |
649 | ||
650 | # Cleanup scripts | |
651 | rm -f "${LINUX_HDROBJ_DIR}/scripts/*.o" | |
652 | rm -f "${LINUX_HDROBJ_DIR}/scripts/*/*.o" | |
653 | ||
04873cc3 | 654 | # On powerpc 32bits this object is required to link modules |
5a196804 | 655 | if [ "${karch}" = "powerpc" ]; then |
efdab1b7 | 656 | if [ "$(scripts/config -s CONFIG_PPC64)" = "y" ] && vergte "${kversion}" "5.4"; then |
10528202 MJ |
657 | : |
658 | else | |
04873cc3 MJ |
659 | cp -a --parents arch/powerpc/lib/crtsavres.[So] "${LINUX_HDROBJ_DIR}/" |
660 | fi | |
5a196804 MJ |
661 | fi |
662 | ||
663 | # On arm64 between 4.13 and 1.15 this object is required to build with ftrace support | |
664 | if [ "${karch}" = "arm64" ]; then | |
665 | if [ -f "arch/arm64/kernel/ftrace-mod.S" ]; then | |
666 | cp -a --parents arch/arm64/kernel/ftrace-mod.[So] "${LINUX_HDROBJ_DIR}/" | |
667 | fi | |
668 | fi | |
669 | ||
670 | # Newer kernels need objtool to build modules when CONFIG_STACK_VALIDATION=y | |
671 | if [ -f tools/objtool/objtool ]; then | |
672 | cp -a --parents tools/objtool/objtool "${LINUX_HDROBJ_DIR}/" | |
673 | fi | |
674 | ||
675 | if [ -f "arch/x86/kernel/macros.s" ]; then | |
676 | cp -a --parents arch/x86/kernel/macros.s "${LINUX_HDROBJ_DIR}/" | |
677 | fi | |
678 | ||
679 | # Copy modules related stuff, if available | |
680 | if [ -s Module.symvers ]; then | |
681 | cp Module.symvers "${LINUX_HDROBJ_DIR}" | |
682 | fi | |
683 | ||
684 | if [ -s System.map ]; then | |
685 | cp System.map "${LINUX_HDROBJ_DIR}" | |
686 | fi | |
687 | ||
688 | if [ -s Module.markers ]; then | |
689 | cp Module.markers "${LINUX_HDROBJ_DIR}" | |
690 | fi | |
691 | ||
692 | # Copy config file | |
693 | cp .config "${LINUX_HDROBJ_DIR}" | |
694 | ||
695 | # Make sure the Makefile and version.h have a matching timestamp so that | |
696 | # external modules can be built | |
697 | if [ -s "${LINUX_HDROBJ_DIR}/include/generated/uapi/linux/version.h" ]; then | |
698 | touch -r "${LINUX_HDROBJ_DIR}/Makefile" "${LINUX_HDROBJ_DIR}/include/generated/uapi/linux/version.h" | |
699 | elif [ -s "${LINUX_HDROBJ_DIR}/include/linux/version.h" ]; then | |
700 | touch -r "${LINUX_HDROBJ_DIR}/Makefile" "${LINUX_HDROBJ_DIR}/include/linux/version.h" | |
701 | else | |
702 | echo "Missing version.h" | |
703 | exit 1 | |
704 | fi | |
705 | touch -r "${LINUX_HDROBJ_DIR}/.config" "${LINUX_HDROBJ_DIR}/include/generated/autoconf.h" | |
706 | ||
707 | # Copy .config to include/config/auto.conf so "make prepare" is unnecessary. | |
780f6285 MJ |
708 | if [ ! -f "${LINUX_HDROBJ_DIR}/include/config/auto.conf" ]; then |
709 | cp "${LINUX_HDROBJ_DIR}/.config" "${LINUX_HDROBJ_DIR}/include/config/auto.conf" | |
710 | fi | |
5a196804 MJ |
711 | |
712 | # Finally clean the object files from the full source tree | |
713 | make clean | |
714 | ||
715 | # And regen the modules support files | |
a86b55bc | 716 | make modules_prepare "${make_args[@]}" |
51fa2ab3 | 717 | |
04873cc3 | 718 | # On powerpc 32bits this object is required to link modules |
d815b018 | 719 | if [ "${karch}" = "powerpc" ]; then |
efdab1b7 | 720 | if [ "$(scripts/config -s CONFIG_PPC64)" = "y" ] && vergte "${kversion}" "5.4"; then |
10528202 MJ |
721 | : |
722 | else | |
a86b55bc | 723 | make arch/powerpc/lib/crtsavres.o "${make_args[@]}" |
04873cc3 | 724 | fi |
d815b018 MJ |
725 | fi |
726 | ||
7a76a4d0 | 727 | # On arm64 between 4.13 and 4.15 this object is required to build with ftrace support |
a1ae361e | 728 | if [ "${karch}" = "arm64" ]; then |
c236528e | 729 | if [ -f "arch/arm64/kernel/ftrace-mod.S" ]; then |
a86b55bc | 730 | make arch/arm64/kernel/ftrace-mod.o "${make_args[@]}" |
a1ae361e MJ |
731 | fi |
732 | fi | |
733 | ||
7e02032c | 734 | # Version specific tasks |
a1ae361e | 735 | case "$ktag" in |
7e02032c MJ |
736 | Ubuntu*) |
737 | # Add Ubuntu ABI number to kernel headers, this is normally done by the packaging code | |
a1ae361e | 738 | ABINUM="$(echo "$ktag" | grep -P -o 'Ubuntu-(lts-)?.*-\K\d+(?=\..*)')" |
5a196804 MJ |
739 | echo "#define UTS_UBUNTU_RELEASE_ABI $ABINUM" >> include/generated/utsrelease.h |
740 | echo "#define UTS_UBUNTU_RELEASE_ABI $ABINUM" >> "${LINUX_HDROBJ_DIR}/include/generated/utsrelease.h" | |
7e02032c MJ |
741 | ;; |
742 | esac | |
7e02032c MJ |
743 | } |
744 | ||
745 | ||
339db64d MJ |
746 | build_modules() { |
747 | ||
5a196804 MJ |
748 | local kdir="$1" |
749 | local outdir="$2" | |
750 | local kversion | |
751 | ||
752 | kversion=$(make -C "$LINUX_HDROBJ_DIR" -s kernelversion) | |
339db64d | 753 | |
2456f978 MJ |
754 | # Try to catch some compatibility problems by turning some |
755 | # warnings into errors. | |
999a2aa0 | 756 | #export KCFLAGS="$KCFLAGS -Wall -Werror" |
2456f978 | 757 | |
339db64d | 758 | # Enter lttng-modules source dir |
5a196804 | 759 | cd "${MODULES_GIT_DIR}" |
339db64d MJ |
760 | |
761 | # kernels 3.10 to 3.10.13 and 3.11 to 3.11.2 introduce a deadlock in the | |
762 | # timekeeping subsystem. We want those build to fail. | |
5a196804 MJ |
763 | if { vergte "$kversion" "3.10" && verlte "$kversion" "3.10.13"; } || \ |
764 | { vergte "$kversion" "3.11" && verlte "$kversion" "3.11.2"; }; then | |
339db64d MJ |
765 | |
766 | set +e | |
767 | ||
768 | # Build modules | |
a86b55bc | 769 | KERNELDIR="${kdir}" make -j"${NPROC}" V=1 "${make_args[@]}" |
0f71a764 | 770 | ret=$? |
339db64d | 771 | |
5a196804 MJ |
772 | set -e |
773 | ||
339db64d | 774 | # We expect this build to fail, if it doesn't, fail the job. |
0f71a764 | 775 | if [ "$ret" -eq 0 ]; then |
e9b44189 | 776 | echo "This build should have failed." |
339db64d MJ |
777 | exit 1 |
778 | fi | |
779 | ||
780 | # We have to publish at least one file or the build will fail | |
5a196804 | 781 | echo "This kernel is broken, there is a deadlock in the timekeeping subsystem." > "${outdir}/BROKEN.txt.ko" |
339db64d | 782 | |
5a196804 | 783 | KERNELDIR="${kdir}" make clean |
7e02032c | 784 | |
339db64d MJ |
785 | else # Regular build |
786 | ||
787 | # Build modules against full kernel sources | |
a86b55bc | 788 | KERNELDIR="${kdir}" make -j"${NPROC}" V=1 "${make_args[@]}" |
339db64d MJ |
789 | |
790 | # Install modules to build dir | |
5a196804 | 791 | KERNELDIR="${kdir}" make INSTALL_MOD_PATH="${outdir}" modules_install |
339db64d MJ |
792 | |
793 | # Clean build dir | |
5a196804 | 794 | KERNELDIR="${kdir}" make clean |
339db64d MJ |
795 | fi |
796 | } | |
797 | ||
798 | ||
799 | ## MAIN ## | |
800 | ||
f3d8604b MJ |
801 | # Use all CPU cores |
802 | NPROC=$(nproc) | |
803 | ||
5a196804 MJ |
804 | MODULES_GIT_DIR="${WORKSPACE}/src/lttng-modules" |
805 | LINUX_GIT_DIR="${WORKSPACE}/src/linux" | |
339db64d | 806 | |
5a196804 MJ |
807 | LINUX_OBJ_DIR="${WORKSPACE}/linux" |
808 | LINUX_SRCOBJ_DIR="${LINUX_OBJ_DIR}/sources" | |
809 | LINUX_HDROBJ_DIR="${LINUX_OBJ_DIR}/headers" | |
810 | LINUX_INSTOBJ_DIR="${LINUX_OBJ_DIR}/install" | |
339db64d | 811 | |
5a196804 MJ |
812 | MODULES_OUTPUT_KSRC_DIR="${WORKSPACE}/build/lttng-modules-ksrc" |
813 | MODULES_OUTPUT_KHDR_DIR="${WORKSPACE}/build/lttng-modules-khdr" | |
339db64d | 814 | |
5a196804 MJ |
815 | LINUX_GIT_REF_REPO_DIR="$HOME/gitcache/linux-stable.git/" |
816 | ||
817 | OBJ_STORE_URL="s3://jenkins" | |
818 | ||
819 | cd "$WORKSPACE" | |
820 | ||
821 | # Create build directories | |
822 | mkdir -p "${LINUX_SRCOBJ_DIR}" "${LINUX_HDROBJ_DIR}" "${LINUX_INSTOBJ_DIR}" "${MODULES_OUTPUT_KSRC_DIR}" "${MODULES_OUTPUT_KHDR_DIR}" | |
823 | ||
824 | git_clone_modules_sources | |
339db64d | 825 | |
7e02032c | 826 | # Setup cross compile env if available |
39961776 | 827 | if [ "x${cross_arch}" != "x" ]; then |
7e02032c MJ |
828 | |
829 | case "$cross_arch" in | |
830 | "armhf") | |
831 | karch="arm" | |
832 | cross_compile="arm-linux-gnueabihf-" | |
53b51a15 | 833 | vanilla_config="imx_v6_v7_defconfig" |
7e02032c MJ |
834 | ubuntu_config="armhf-config.flavour.generic" |
835 | ;; | |
836 | ||
837 | "arm64") | |
838 | karch="arm64" | |
839 | cross_compile="aarch64-linux-gnu-" | |
53b51a15 | 840 | vanilla_config="defconfig" |
7e02032c MJ |
841 | ubuntu_config="arm64-config.flavour.generic" |
842 | ;; | |
843 | ||
844 | "powerpc") | |
845 | karch="powerpc" | |
846 | cross_compile="powerpc-linux-gnu-" | |
e9b44189 | 847 | vanilla_config="ppc44x_defconfig" |
7e02032c MJ |
848 | ubuntu_config="powerpc-config.flavour.powerpc-smp" |
849 | ;; | |
850 | ||
851 | "ppc64el") | |
852 | karch="powerpc" | |
853 | cross_compile="powerpc64le-linux-gnu-" | |
e9b44189 | 854 | vanilla_config="pseries_le_defconfig" |
7e02032c MJ |
855 | ubuntu_config="ppc64el-config.flavour.generic" |
856 | ;; | |
857 | ||
858 | *) | |
51fa2ab3 | 859 | echo "Unsupported cross arch $cross_arch" |
7e02032c MJ |
860 | exit 1 |
861 | ;; | |
862 | esac | |
339db64d | 863 | |
7e02032c MJ |
864 | # Export variables used by Kbuild for cross compilation |
865 | export ARCH="${karch}" | |
866 | export CROSS_COMPILE="${cross_compile}" | |
339db64d | 867 | |
7e02032c | 868 | # Set arch specific values if we are not cross compiling |
39961776 | 869 | elif [ "x${arch}" != "x" ]; then |
e9b44189 | 870 | |
7e02032c | 871 | case "$arch" in |
16844a6d | 872 | "i386") |
7e02032c | 873 | karch="x86" |
1490b049 | 874 | vanilla_config="allmodconfig" |
7e02032c MJ |
875 | ubuntu_config="i386-config.flavour.generic" |
876 | ;; | |
877 | ||
16844a6d | 878 | "amd64") |
7e02032c | 879 | karch="x86" |
1490b049 | 880 | vanilla_config="allmodconfig" |
7e02032c MJ |
881 | ubuntu_config="amd64-config.flavour.generic" |
882 | ;; | |
883 | ||
884 | "armhf") | |
885 | karch="arm" | |
1490b049 | 886 | vanilla_config="allmodconfig" |
7e02032c MJ |
887 | ubuntu_config="armhf-config.flavour.generic" |
888 | ;; | |
889 | ||
890 | "arm64") | |
891 | karch="arm64" | |
1490b049 | 892 | vanilla_config="allmodconfig" |
7e02032c MJ |
893 | ubuntu_config="arm64-config.flavour.generic" |
894 | ;; | |
895 | ||
896 | "powerpc") | |
897 | karch="powerpc" | |
1490b049 | 898 | vanilla_config="allmodconfig" |
7e02032c MJ |
899 | ubuntu_config="powerpc-config.flavour.powerpc-smp" |
900 | ;; | |
901 | ||
902 | "ppc64el") | |
903 | karch="powerpc" | |
1490b049 | 904 | vanilla_config="allmodconfig" |
7e02032c MJ |
905 | ubuntu_config="ppc64el-config.flavour.generic" |
906 | ;; | |
907 | ||
908 | *) | |
909 | echo "Unsupported arch $arch" | |
910 | exit 1 | |
911 | ;; | |
912 | esac | |
913 | else | |
04873cc3 | 914 | echo "No arch or cross_arch specified" |
7e02032c MJ |
915 | exit 1 |
916 | fi | |
339db64d | 917 | |
339db64d | 918 | |
b214d997 | 919 | |
5a196804 MJ |
920 | # First get the kernel build from the object store, or build it, if it's |
921 | # not available. | |
339db64d | 922 | |
5a196804 MJ |
923 | echo "# Setup endpoint |
924 | host_base = obj.internal.efficios.com | |
925 | host_bucket = obj.internal.efficios.com | |
926 | bucket_location = us-east-1 | |
927 | use_https = True | |
7e02032c | 928 | |
5a196804 MJ |
929 | # Setup access keys |
930 | access_key = jenkins | |
931 | secret_key = echo123456 | |
339db64d | 932 | |
5a196804 MJ |
933 | # Enable S3 v4 signature APIs |
934 | signature_v2 = False" > "$WORKSPACE/.s3cfg" | |
339db64d | 935 | |
c45b04df | 936 | url_hash="$(echo -n "$kgitrepo" | md5sum | awk '{ print $1 }')" |
5a196804 | 937 | obj_name="linux.tar.bz2" |
87445931 | 938 | |
efdab1b7 | 939 | if [ -z "${cross_arch}" ]; then |
909c5352 | 940 | obj_url_prefix="$OBJ_STORE_URL/linux-build/$url_hash/$ktag/platform-${platforms}/$arch/native" |
87445931 | 941 | else |
909c5352 | 942 | obj_url_prefix="$OBJ_STORE_URL/linux-build/$url_hash/$ktag/platform-${platforms}/${cross_arch}" |
87445931 MJ |
943 | fi |
944 | ||
5a196804 | 945 | obj_url="$obj_url_prefix/$obj_name" |
339db64d | 946 | |
5a196804 | 947 | set +e |
e18b6e95 KS |
948 | # In s3cmd 2.3, the return code of get when an object does not exist (64) |
949 | # is different than in 2.2 (12). The return codes of 's3cmd info' are | |
950 | # consistent between 2.2 and 2.3. | |
951 | s3cmd -c "$WORKSPACE/.s3cfg" info "$obj_url" | |
5a196804 MJ |
952 | ret=$? |
953 | set -e | |
339db64d | 954 | |
5a196804 MJ |
955 | case "$ret" in |
956 | "0") | |
e18b6e95 | 957 | s3cmd -c "$WORKSPACE/.s3cfg" get "$obj_url" |
5a196804 MJ |
958 | extract_archive_obj |
959 | ;; | |
a1ae361e | 960 | |
5a196804 MJ |
961 | "12") |
962 | echo "File not found" | |
339db64d | 963 | |
5a196804 MJ |
964 | # Build all the things and upload |
965 | # then finish the module build... | |
339db64d | 966 | |
5a196804 MJ |
967 | git_clone_linux_sources |
968 | git_export_linux_sources | |
339db64d | 969 | |
5a196804 | 970 | select_compiler |
a1ae361e | 971 | |
5a196804 MJ |
972 | ## PREPARE FULL LINUX SOURCE TREE |
973 | build_linux_kernel | |
d138fc44 | 974 | |
5a196804 MJ |
975 | ## EXTRACT DISTRO STYLE KERNEL HEADERS / DEVEL |
976 | extract_distro_headers | |
339db64d | 977 | |
5a196804 | 978 | tar_archive_obj |
339db64d | 979 | |
5a196804 | 980 | upload_archive_obj |
339db64d | 981 | |
5a196804 | 982 | ;; |
339db64d | 983 | |
5a196804 MJ |
984 | *) |
985 | echo "Unknown error? Abort" | |
986 | exit 1 | |
987 | ;; | |
988 | esac | |
339db64d | 989 | |
5a196804 | 990 | select_compiler |
f3d8604b | 991 | |
a86b55bc KS |
992 | selected_cc_version="$(echo "${selected_cc}" | cut -d'-' -f2)" |
993 | # lttng-modules requires gcc >= 5.1 for aarch64 | |
994 | # @see https://github.com/lttng/lttng-modules/commit/be06402dbdbea2f3394e60ec15c5d3356e2be416 | |
995 | if { verlt "${selected_cc_version}" "5.1"; } && [ "${cross_arch}" = "arm64" ] ; then | |
996 | echo "Building lltng-modules on aarch64 requires gcc >= 5.1" | |
997 | exit 0 | |
998 | fi | |
999 | ||
7e02032c | 1000 | ## BUILD modules |
5a196804 MJ |
1001 | # Either we downloaded a pre-build kernel or we built it and uploaded |
1002 | # the archive for future builds. | |
1003 | ||
1004 | cd "$WORKSPACE" | |
f3d8604b | 1005 | |
339db64d | 1006 | # Build modules against full kernel sources |
5a196804 | 1007 | build_modules "${LINUX_SRCOBJ_DIR}" "${MODULES_OUTPUT_KSRC_DIR}" |
f3d8604b | 1008 | |
339db64d | 1009 | # Build modules against kernel headers |
5a196804 | 1010 | build_modules "${LINUX_HDROBJ_DIR}" "${MODULES_OUTPUT_KHDR_DIR}" |
f3d8604b | 1011 | |
5a196804 MJ |
1012 | # Make sure some modules were actually built |
1013 | tree "${MODULES_OUTPUT_KSRC_DIR}" | |
1014 | if [ "x$(find "${MODULES_OUTPUT_KSRC_DIR}" -name '*.ko*' -printf yes -quit)" != "xyes" ]; then | |
7e02032c MJ |
1015 | echo "No modules built!" |
1016 | exit 1 | |
1017 | fi | |
1018 | ||
5a196804 MJ |
1019 | tree "${MODULES_OUTPUT_KHDR_DIR}" |
1020 | if [ "x$(find "${MODULES_OUTPUT_KHDR_DIR}" -name '*.ko*' -printf yes -quit)" != "xyes" ]; then | |
7e02032c MJ |
1021 | echo "No modules built!" |
1022 | exit 1 | |
1023 | fi | |
b214d997 | 1024 | |
f3d8604b | 1025 | # EOF |