| 1 | #!/bin/bash |
| 2 | # |
| 3 | # Copyright (C) 2016-2019 Michael Jeanson <mjeanson@efficios.com> |
| 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 | |
| 18 | set -exu |
| 19 | |
| 20 | # Parameters |
| 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="${platforms:-}" |
| 30 | fi |
| 31 | fi |
| 32 | |
| 33 | cross_arch=${cross_arch:-} |
| 34 | ktag=${ktag:-} |
| 35 | kgitrepo=${kgitrepo:-} |
| 36 | mversion=${mversion:-} |
| 37 | mgitrepo=${mgitrepo:-} |
| 38 | make_args=() |
| 39 | |
| 40 | DEBUG=${DEBUG:-} |
| 41 | |
| 42 | ## FUNCTIONS ## |
| 43 | |
| 44 | # Kernel version compare functions |
| 45 | verlte() { |
| 46 | [ "$1" = "$(printf '%s\n%s' "$1" "$2" | sort -V | head -n1)" ] |
| 47 | } |
| 48 | |
| 49 | verlt() { |
| 50 | # shellcheck disable=SC2015 |
| 51 | [ "$1" = "$2" ] && return 1 || verlte "$1" "$2" |
| 52 | } |
| 53 | |
| 54 | vergte() { |
| 55 | [ "$1" = "$(printf '%s\n%s' "$1" "$2" | sort -V | tail -n1)" ] |
| 56 | } |
| 57 | |
| 58 | vergt() { |
| 59 | # shellcheck disable=SC2015 |
| 60 | [ "$1" = "$2" ] && return 1 || vergte "$1" "$2" |
| 61 | } |
| 62 | |
| 63 | git_clone_modules_sources() { |
| 64 | mkdir -p "$MODULES_GIT_DIR" |
| 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 |
| 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}" "$LINUX_GIT_DIR" |
| 80 | } |
| 81 | |
| 82 | |
| 83 | # Export the kernel sources from the git repo |
| 84 | git_export_linux_sources() { |
| 85 | cd "$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() { |
| 98 | tar -xf "$WORKSPACE/$obj_name" -C "$LINUX_OBJ_DIR" |
| 99 | rm -f "$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 | |
| 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 "${gccs[@]}" |
| 117 | } |
| 118 | |
| 119 | # Find the most recent GCC version supported by the kernel sources |
| 120 | select_compiler() { |
| 121 | local selected_cc |
| 122 | |
| 123 | cd "$LINUX_SRCOBJ_DIR" |
| 124 | |
| 125 | kversion=$(make -s kernelversion) |
| 126 | |
| 127 | set +e |
| 128 | |
| 129 | for cc in $(list_gccs) ; do |
| 130 | if "${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 "${cc_version}" "11"; } ; then |
| 133 | # Using gcc-12+ with '-Wuse-after-free' breaks the build of older |
| 134 | # kernels (in particular, objtool). Some releases on LTS |
| 135 | # branches between 4.x and 5.15 can be built with gcc-12. |
| 136 | # @see https://lore.kernel.org/lkml/20494.1643237814@turing-police/ |
| 137 | # @see https://gitlab.com/linux-kernel/stable/-/commit/52a9dab6d892763b2a8334a568bd4e2c1a6fde66 |
| 138 | continue |
| 139 | fi |
| 140 | selected_cc="$cc" |
| 141 | break |
| 142 | fi |
| 143 | done |
| 144 | |
| 145 | set -e |
| 146 | |
| 147 | # Force gcc-4.8 for kernels before 4.4 |
| 148 | if { verlt "$kversion" "4.4"; }; then |
| 149 | selected_cc='gcc-4.8' |
| 150 | fi |
| 151 | |
| 152 | if [ "x$selected_cc" = "x" ]; then |
| 153 | echo "Found no suitable compiler." |
| 154 | exit 1 |
| 155 | fi |
| 156 | |
| 157 | _KAFLAGS=() |
| 158 | _KCFLAGS=() |
| 159 | _KCPPFLAGS=() |
| 160 | _HOSTCFLAGS=() |
| 161 | if [ "$selected_cc" != "gcc-4.8" ]; then |
| 162 | # Older kernel Makefiles do not expect the compiler to default to PIE |
| 163 | _KAFLAGS+=(-fno-pie) |
| 164 | _KCFLAGS+=( |
| 165 | -fno-pie |
| 166 | -no-pie |
| 167 | -fno-stack-protector |
| 168 | ) |
| 169 | _KCPPFLAGS+=(-fno-pie) |
| 170 | fi |
| 171 | |
| 172 | selected_cc_version="$(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) |
| 195 | fi |
| 196 | |
| 197 | export KAFLAGS="${_KAFLAGS[*]}" |
| 198 | export KCFLAGS="${_KCFLAGS[*]}" |
| 199 | export KCPPFLAGS="${_KCPPFLAGS[*]}" |
| 200 | export HOSTCFLAGS="${_HOSTCFLAGS[*]}" |
| 201 | export CC="${CROSS_COMPILE:-}${selected_cc}" |
| 202 | export HOSTCC="${selected_cc}" |
| 203 | |
| 204 | make_args=( |
| 205 | CC="${CC}" |
| 206 | HOSTCC="${HOSTCC}" |
| 207 | HOSTCFLAGS="${HOSTCFLAGS:-}" |
| 208 | ) |
| 209 | if [ -n "${DEBUG}" ] ; then |
| 210 | make_args+=( |
| 211 | V=1 |
| 212 | ) |
| 213 | fi |
| 214 | cd - |
| 215 | } |
| 216 | |
| 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 | } |
| 228 | |
| 229 | build_linux_kernel() { |
| 230 | cd "$LINUX_SRCOBJ_DIR" |
| 231 | |
| 232 | kversion=$(make -s kernelversion "${make_args[@]}") |
| 233 | |
| 234 | if { verlt "${kversion}" "3.3"; } && [ "${vanilla_config}" = "imx_v6_v7_defconfig" ] ; then |
| 235 | # imx_v6_v7 didn't exist before 06965c39b4c63933fa0a1cde2237ef85477c5655 |
| 236 | if { verlt "${kversion}" "3.2"; } ; then |
| 237 | vanilla_config='mx5_defconfig' |
| 238 | else |
| 239 | vanilla_config='mx51_defconfig' |
| 240 | fi |
| 241 | fi |
| 242 | |
| 243 | if { verlt "${kversion}" "3.13"; } && [ "${vanilla_config}" = "pseries_le_defconfig" ] ; then |
| 244 | # pseries_le_deconfig was introduced in f53e462e907cbaed29c49c0f10f5b8f614e1bf1d |
| 245 | vanilla_config='pseries_defconfig' |
| 246 | fi |
| 247 | |
| 248 | # Generate kernel configuration |
| 249 | case "$ktag" in |
| 250 | Ubuntu*) |
| 251 | if [ "${cross_arch}" = "powerpc" ]; then |
| 252 | if vergte "${kversion}" "4.10"; then |
| 253 | echo "Ubuntu removed big endian powerpc configuration from kernel >= 4.10. Don't try to build it." |
| 254 | exit 0 |
| 255 | fi |
| 256 | fi |
| 257 | |
| 258 | # Disable riscv64 config generation, we don't have a toolchain on bionic |
| 259 | sed -i 's/riscv64 //' debian.master/etc/kernelconfig |
| 260 | |
| 261 | fakeroot debian/rules clean KW_DEFCONFIG_DIR=. |
| 262 | |
| 263 | # Hack for kernel Ubuntu-hwe-5.8 |
| 264 | # The debian/control file is produced by the clean target above, so this |
| 265 | # check needs to happen afterwards. |
| 266 | if [ ! -f "debian/compat" ] && ! grep -q debhelper-compat debian/control; then |
| 267 | echo "10" > "debian/compat" |
| 268 | fi |
| 269 | |
| 270 | # genconfigs check can fail in certain cases, eg. when a more recent |
| 271 | # compiler exposes kernel configuration flags which aren't set in the |
| 272 | # Ubuntu annotations. |
| 273 | # In any case, the configuration will be updated with any missing values |
| 274 | # later in our build script. |
| 275 | fakeroot debian/rules genconfigs KW_DEFCONFIG_DIR=. do_skip_checks=true |
| 276 | cp CONFIGS/"${ubuntu_config}" .config |
| 277 | ;; |
| 278 | |
| 279 | *) |
| 280 | # Force 32bit build on i386, default is 64bit |
| 281 | if [ "$arch" = "i386" ]; then |
| 282 | export ARCH="i386" |
| 283 | fi |
| 284 | |
| 285 | make "${vanilla_config}" "${make_args[@]}" |
| 286 | ;; |
| 287 | esac |
| 288 | |
| 289 | if [ "${vanilla_config}" = "pseries_defconfig" ] && [ "${cross_arch}" = "ppc64el" ] ; then |
| 290 | # @see diff <(git show v3.13:arch/powerpc/configs/pseries_defconfig) <(git show v3.13:arch/powerpc/configs/pseries_le_defconfig) |
| 291 | scripts/config --enable CONFIG_CPU_LITTLE_ENDIAN |
| 292 | scripts/config --enable CONFIG_CMA |
| 293 | scripts/config --disable CONFIG_XMON_DEFAULT |
| 294 | # scripts/config --disable CONFIG_VIRTUALIZATION |
| 295 | # scripts/config --disable CONFIG_KVM_BOOK3S_64 |
| 296 | scripts/config --disable CONFIG_KVM_BOOK3S_64_HV |
| 297 | fi |
| 298 | |
| 299 | # oldnoconfig was renamed in 4.19 |
| 300 | if vergte "$kversion" "4.19"; then |
| 301 | update_conf_target="olddefconfig" |
| 302 | else |
| 303 | update_conf_target="oldnoconfig" |
| 304 | fi |
| 305 | |
| 306 | # Fix 'defined(@array)' was removed from recent perl |
| 307 | if [ -f "kernel/timeconst.pl" ]; then |
| 308 | sed -i 's/defined(\@\(.*\))/@\1/' kernel/timeconst.pl |
| 309 | fi |
| 310 | |
| 311 | # Fix syntax of inline assembly which is confused with C++11 raw strings on gcc >= 5 |
| 312 | if [ "$HOSTCC" != "gcc-4.8" ]; then |
| 313 | if [ -f "arch/x86/kvm/svm.c" ]; then |
| 314 | sed -i 's/ R"/ R "/g; s/"R"/" R "/g' arch/x86/kvm/svm.c |
| 315 | fi |
| 316 | |
| 317 | if [ -f "arch/x86/kvm/vmx.c" ]; then |
| 318 | sed -i 's/ R"/ R "/g; s/"R"/" R "/g' arch/x86/kvm/vmx.c |
| 319 | fi |
| 320 | fi |
| 321 | |
| 322 | if { verlt "${kversion}" "5.11"; } && { vergte "${kversion}" "4.10"; } ; then |
| 323 | # Binutils > 2.35 strips empty symbol tables, causing obltool to fail |
| 324 | # in certain cases when files are empty. |
| 325 | # @see https://gitlab.com/linux-kernel/stable/-/commit/1d489151e9f9d1647110277ff77282fe4d96d09b |
| 326 | # |
| 327 | # There doesn't seem to be any LD/AS/AR flags to control this behaviour, |
| 328 | # therefore patching tools/objtool/elf.c is attempted. |
| 329 | patch_linux_kernel 1d489151e9f9d1647110277ff77282fe4d96d09b |
| 330 | if { verlt "${kversion}" "4.18"; } ; then |
| 331 | patch_linux_kernel e81e0724432542af8d8c702c31e9d82f57b1ff31 |
| 332 | fi |
| 333 | fi |
| 334 | |
| 335 | if { vergt "${selected_cc_version}" "7"; } && { vergte "${kversion}" "4.15"; } && { verlt "${kversion}" "4.17"; } ; then |
| 336 | # Builds fail due to -Werror=restrict in pager.o and str_error_r.o |
| 337 | if { verlt "${kversion}" "4.16"; } ; then |
| 338 | # This is patched since objtool's Makefile doesn't respect HOSTCFLAGS |
| 339 | # @see https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ad343a98e74e85aa91d844310e797f96fee6983b |
| 340 | patch_linux_kernel ad343a98e74e85aa91d844310e797f96fee6983b |
| 341 | fi |
| 342 | if { verlt "${kversion}" "4.17"; } ; then |
| 343 | # This is patched since objtool's Makefile doesn't respect HOSTCFLAGS |
| 344 | # @see https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=854e55ad289ef8888e7991f0ada85d5846f5afb9 |
| 345 | patch_linux_kernel 854e55ad289ef8888e7991f0ada85d5846f5afb9 |
| 346 | fi |
| 347 | |
| 348 | # More recent compiler optimizations expose build errors with netronome. |
| 349 | # It seems easier to disable the driver than to attempt patching. |
| 350 | scripts/config --disable CONFIG_NET_VENDOR_NETRONOME |
| 351 | scripts/config --disable CONFIG_MICREL_PHY |
| 352 | |
| 353 | # Duplicate decalarations of __force_order |
| 354 | # @see https://gitlab.com/linux-kernel/stable/-/commit/df6d4f9db79c1a5d6f48b59db35ccd1e9ff9adfc |
| 355 | # However, kaslr_64.c doesn't exit in 4.15, 4.16, it's named pagetable.c |
| 356 | if [ -f arch/x86/boot/compressed/pagetable.c ] ; then |
| 357 | sed -i '/^unsigned long __force_order;$/d' arch/x86/boot/compressed/pagetable.c |
| 358 | fi |
| 359 | fi |
| 360 | |
| 361 | if { vergte "${kversion}" "4.15"; } && { verlt "${kversion}" "4.18"; } ; then |
| 362 | # Some old kernels fail to build when make is too new |
| 363 | # @see https://gitlab.com/linux-kernel/stable/-/commit/9feeb638cde083c737e295c0547f1b4f28e99583 |
| 364 | patch_linux_kernel 9564a8cf422d7b58f6e857e3546d346fa970191e |
| 365 | # @see https://gitlab.com/linux-kernel/stable/-/commit/9feeb638cde083c737e295c0547f1b4f28e99583 |
| 366 | patch_linux_kernel 9feeb638cde083c737e295c0547f1b4f28e99583 |
| 367 | fi |
| 368 | |
| 369 | if { vergte "${kversion}" "4.12"; } && { verlt "${kversion}" "4.18"; } ; then |
| 370 | # Old kernels can fail to build while on newer host kernels |
| 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 | |
| 424 | if ( { vergte "${kversion}" "3.15"; } && { verlt "${kversion}" "4.4"; } ) || |
| 425 | ( { vergte "${kversion}" "4.15"; } && { verlt "${kversion}" "4.17"; } ); then |
| 426 | # While the original motivation of this patch is for fixing builds using |
| 427 | # clang, the same error occurs between linux >= 3.15 and < 4.4, and in |
| 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$/d' kernel/Makefile |
| 443 | fi |
| 444 | fi |
| 445 | |
| 446 | # Newer binutils don't accept 3 operand 'cmp' instructions on ppc64 |
| 447 | # Convert them to 'cmpw' which was previously done silently |
| 448 | if verlt "$kversion" "4.9"; then |
| 449 | 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/" |
| 450 | 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/" |
| 451 | sed -i "s/\$pie \-o \"\$ofile\"/\$pie --no-dynamic-linker -o \"\$ofile\"/" arch/powerpc/boot/wrapper |
| 452 | fi |
| 453 | |
| 454 | # Fix a typo in v2.6.36.x |
| 455 | if [ -f "arch/x86/kernel/entry_64.S" ]; then |
| 456 | sed -i 's/END(do_hypervisor_callback)/END(xen_do_hypervisor_callback)/' arch/x86/kernel/entry_64.S |
| 457 | fi |
| 458 | |
| 459 | # Fix compiler switch in vdso Makefile for 2.6.36 to 2.6.36.2 |
| 460 | if { vergte "$kversion" "2.6.36" && verlte "$kversion" "2.6.36.3"; }; then |
| 461 | sed -i 's/-m elf_x86_64/-m64/' arch/x86/vdso/Makefile |
| 462 | sed -i 's/-m elf_i386/-m32/' arch/x86/vdso/Makefile |
| 463 | fi |
| 464 | |
| 465 | # Fix kernel < 3.0 with gcc >= 4.7 |
| 466 | if verlt "$kversion" "3.0"; then |
| 467 | sed -i '/linux\/compiler.h/a #include <linux\/linkage.h> \/* For asmregparm *\/' arch/x86/include/asm/ptrace.h |
| 468 | sed -i 's/extern long syscall_trace_enter/extern asmregparm long syscall_trace_enter/' arch/x86/include/asm/ptrace.h |
| 469 | sed -i 's/extern void syscall_trace_leave/extern asmregparm void syscall_trace_leave/' arch/x86/include/asm/ptrace.h |
| 470 | echo "header-y += linkage.h" >> include/linux/Kbuild |
| 471 | fi |
| 472 | |
| 473 | if [ "${cross_arch}" = "powerpc" ] ; then |
| 474 | if { vergte "${kversion}" "4.15"; } && { verlt "${kversion}" "4.16"; } ; then |
| 475 | # Avoid register errors such as |
| 476 | # aes_generic.c:(.text+0x4e0): undefined reference to `_restgpr_31_x' |
| 477 | # @see https://gitlab.com/linux-kernel/stable/-/commit/148b974deea927f5dbb6c468af2707b488bfa2de |
| 478 | make_args+=( |
| 479 | CFLAGS_aes_generic.o='' |
| 480 | ) |
| 481 | fi |
| 482 | fi |
| 483 | |
| 484 | # GCC 4.8 |
| 485 | if [ "$HOSTCC" == "gcc-4.8" ]; then |
| 486 | scripts/config --disable CONFIG_CC_STACKPROTECTOR_STRONG |
| 487 | scripts/config --disable CONFIG_PPC_OF_BOOT_TRAMPOLINE |
| 488 | fi |
| 489 | |
| 490 | # Don't try to sign modules |
| 491 | scripts/config --disable CONFIG_MODULE_SIG |
| 492 | |
| 493 | # Disable kernel stack frame correctness validation, introduced in 4.6.0 and currently fails |
| 494 | scripts/config --disable CONFIG_STACK_VALIDATION |
| 495 | |
| 496 | # Cause problems with inline assembly on i386 |
| 497 | scripts/config --disable CONFIG_DEBUG_SECTION_MISMATCH |
| 498 | |
| 499 | # Don't build samples, they are broken on some kernel releases |
| 500 | scripts/config --disable CONFIG_SAMPLES |
| 501 | scripts/config --disable CONFIG_BUILD_DOCSRC |
| 502 | |
| 503 | # Disable kcov |
| 504 | scripts/config --disable CONFIG_KCOV |
| 505 | |
| 506 | # Broken on some RT kernels |
| 507 | scripts/config --disable CONFIG_HYPERV |
| 508 | |
| 509 | # Broken drivers |
| 510 | scripts/config --disable CONFIG_RAPIDIO_TSI721 |
| 511 | scripts/config --disable CONFIG_SGI_XP |
| 512 | scripts/config --disable CONFIG_MFD_WM8994 |
| 513 | scripts/config --disable CONFIG_DRM_RADEON |
| 514 | scripts/config --disable CONFIG_SND_SOC_WM5100 |
| 515 | |
| 516 | # IGBVF won't build with recent gcc on 2.6.38.x |
| 517 | if { vergte "$kversion" "2.6.37" && verlt "$kversion" "2.6.38"; }; then |
| 518 | scripts/config --disable CONFIG_IGBVF |
| 519 | fi |
| 520 | |
| 521 | # Don't fail the build on warnings |
| 522 | scripts/config --disable CONFIG_WERROR |
| 523 | scripts/config --enable CONFIG_PPC_DISABLE_WERROR |
| 524 | |
| 525 | # Set required options |
| 526 | scripts/config --enable CONFIG_TRACEPOINTS |
| 527 | scripts/config --enable CONFIG_KALLSYMS |
| 528 | scripts/config --enable CONFIG_HIGH_RES_TIMERS |
| 529 | scripts/config --enable CONFIG_KPROBES |
| 530 | scripts/config --enable CONFIG_FTRACE |
| 531 | scripts/config --enable CONFIG_BLK_DEV_IO_TRACE |
| 532 | scripts/config --enable CONFIG_KALLSYMS_ALL |
| 533 | scripts/config --enable CONFIG_HAVE_SYSCALL_TRACEPOINTS |
| 534 | scripts/config --enable CONFIG_PERF_EVENTS |
| 535 | scripts/config --enable CONFIG_EVENT_TRACING |
| 536 | scripts/config --enable CONFIG_KRETPROBES |
| 537 | |
| 538 | if [ -n "${DEBUG}" ] ; then |
| 539 | cat .config |
| 540 | fi |
| 541 | |
| 542 | make "$update_conf_target" "${make_args[@]}" |
| 543 | make -j"$NPROC" "${make_args[@]}" |
| 544 | |
| 545 | krelease=$(make -s kernelrelease "${mark_args[@]}") |
| 546 | |
| 547 | # Save the kernel and modules |
| 548 | mkdir -p "$LINUX_INSTOBJ_DIR/boot" |
| 549 | make INSTALL_MOD_PATH="$LINUX_INSTOBJ_DIR" INSTALL_MOD_STRIP=1 modules_install "${make_args[@]}" |
| 550 | make INSTALL_MOD_PATH="$LINUX_INSTOBJ_DIR" INSTALL_PATH="$LINUX_INSTOBJ_DIR/boot" install "${make_args[@]}" |
| 551 | rm -f "$LINUX_INSTOBJ_DIR/lib/modules/${krelease}/source" "$LINUX_INSTOBJ_DIR/lib/modules/${krelease}/build" |
| 552 | ln -s ../../../../sources "$LINUX_INSTOBJ_DIR/lib/modules/${krelease}/source" |
| 553 | ln -s ../../../../sources "$LINUX_INSTOBJ_DIR/lib/modules/${krelease}/source" |
| 554 | } |
| 555 | |
| 556 | |
| 557 | extract_distro_headers() { |
| 558 | |
| 559 | # Enter linux source dir |
| 560 | cd "${LINUX_SRCOBJ_DIR}" |
| 561 | |
| 562 | |
| 563 | # For RT kernels, copy version file |
| 564 | if [ -s localversion-rt ]; then |
| 565 | cp -a localversion-rt "${LINUX_HDROBJ_DIR}" |
| 566 | fi |
| 567 | |
| 568 | # Copy all Makefile related stuff |
| 569 | find . -path './include/*' -prune \ |
| 570 | -o -path './scripts/*' -prune -o -type f \ |
| 571 | \( -name 'Makefile*' -o -name 'Kconfig*' -o -name 'Kbuild*' -o \ |
| 572 | -name '*.sh' -o -name '*.pl' -o -name '*.lds' \) \ |
| 573 | -print | cpio -pd --preserve-modification-time "${LINUX_HDROBJ_DIR}" |
| 574 | |
| 575 | # Copy base scripts and include dirs |
| 576 | cp -a scripts include "${LINUX_HDROBJ_DIR}" |
| 577 | |
| 578 | # Copy arch includes |
| 579 | (find arch -name include -type d -print0 | \ |
| 580 | xargs -0 -n1 -i: find : -type f) | \ |
| 581 | cpio -pd --preserve-modification-time "${LINUX_HDROBJ_DIR}" |
| 582 | |
| 583 | # Copy arch scripts |
| 584 | (find arch -name scripts -type d -print0 | \ |
| 585 | xargs -0 -n1 -i: find : -type f) | \ |
| 586 | cpio -pd --preserve-modification-time "${LINUX_HDROBJ_DIR}" |
| 587 | |
| 588 | # Cleanup scripts |
| 589 | rm -f "${LINUX_HDROBJ_DIR}/scripts/*.o" |
| 590 | rm -f "${LINUX_HDROBJ_DIR}/scripts/*/*.o" |
| 591 | |
| 592 | # On powerpc 32bits this object is required to link modules |
| 593 | if [ "${karch}" = "powerpc" ]; then |
| 594 | if [ "x$(scripts/config -s CONFIG_PPC64)" = "xy" ] && vergte "${kversion}" "5.4"; then |
| 595 | : |
| 596 | else |
| 597 | cp -a --parents arch/powerpc/lib/crtsavres.[So] "${LINUX_HDROBJ_DIR}/" |
| 598 | fi |
| 599 | fi |
| 600 | |
| 601 | # On arm64 between 4.13 and 1.15 this object is required to build with ftrace support |
| 602 | if [ "${karch}" = "arm64" ]; then |
| 603 | if [ -f "arch/arm64/kernel/ftrace-mod.S" ]; then |
| 604 | cp -a --parents arch/arm64/kernel/ftrace-mod.[So] "${LINUX_HDROBJ_DIR}/" |
| 605 | fi |
| 606 | fi |
| 607 | |
| 608 | # Newer kernels need objtool to build modules when CONFIG_STACK_VALIDATION=y |
| 609 | if [ -f tools/objtool/objtool ]; then |
| 610 | cp -a --parents tools/objtool/objtool "${LINUX_HDROBJ_DIR}/" |
| 611 | fi |
| 612 | |
| 613 | if [ -f "arch/x86/kernel/macros.s" ]; then |
| 614 | cp -a --parents arch/x86/kernel/macros.s "${LINUX_HDROBJ_DIR}/" |
| 615 | fi |
| 616 | |
| 617 | # Copy modules related stuff, if available |
| 618 | if [ -s Module.symvers ]; then |
| 619 | cp Module.symvers "${LINUX_HDROBJ_DIR}" |
| 620 | fi |
| 621 | |
| 622 | if [ -s System.map ]; then |
| 623 | cp System.map "${LINUX_HDROBJ_DIR}" |
| 624 | fi |
| 625 | |
| 626 | if [ -s Module.markers ]; then |
| 627 | cp Module.markers "${LINUX_HDROBJ_DIR}" |
| 628 | fi |
| 629 | |
| 630 | # Copy config file |
| 631 | cp .config "${LINUX_HDROBJ_DIR}" |
| 632 | |
| 633 | # Make sure the Makefile and version.h have a matching timestamp so that |
| 634 | # external modules can be built |
| 635 | if [ -s "${LINUX_HDROBJ_DIR}/include/generated/uapi/linux/version.h" ]; then |
| 636 | touch -r "${LINUX_HDROBJ_DIR}/Makefile" "${LINUX_HDROBJ_DIR}/include/generated/uapi/linux/version.h" |
| 637 | elif [ -s "${LINUX_HDROBJ_DIR}/include/linux/version.h" ]; then |
| 638 | touch -r "${LINUX_HDROBJ_DIR}/Makefile" "${LINUX_HDROBJ_DIR}/include/linux/version.h" |
| 639 | else |
| 640 | echo "Missing version.h" |
| 641 | exit 1 |
| 642 | fi |
| 643 | touch -r "${LINUX_HDROBJ_DIR}/.config" "${LINUX_HDROBJ_DIR}/include/generated/autoconf.h" |
| 644 | |
| 645 | # Copy .config to include/config/auto.conf so "make prepare" is unnecessary. |
| 646 | if [ ! -f "${LINUX_HDROBJ_DIR}/include/config/auto.conf" ]; then |
| 647 | cp "${LINUX_HDROBJ_DIR}/.config" "${LINUX_HDROBJ_DIR}/include/config/auto.conf" |
| 648 | fi |
| 649 | |
| 650 | # Finally clean the object files from the full source tree |
| 651 | make clean |
| 652 | |
| 653 | # And regen the modules support files |
| 654 | make modules_prepare "${make_args[@]}" |
| 655 | |
| 656 | # On powerpc 32bits this object is required to link modules |
| 657 | if [ "${karch}" = "powerpc" ]; then |
| 658 | if [ "x$(scripts/config -s CONFIG_PPC64)" = "xy" ] && vergte "${kversion}" "5.4"; then |
| 659 | : |
| 660 | else |
| 661 | make arch/powerpc/lib/crtsavres.o "${make_args[@]}" |
| 662 | fi |
| 663 | fi |
| 664 | |
| 665 | # On arm64 between 4.13 and 4.15 this object is required to build with ftrace support |
| 666 | if [ "${karch}" = "arm64" ]; then |
| 667 | if [ -f "arch/arm64/kernel/ftrace-mod.S" ]; then |
| 668 | make arch/arm64/kernel/ftrace-mod.o "${make_args[@]}" |
| 669 | fi |
| 670 | fi |
| 671 | |
| 672 | # Version specific tasks |
| 673 | case "$ktag" in |
| 674 | Ubuntu*) |
| 675 | # Add Ubuntu ABI number to kernel headers, this is normally done by the packaging code |
| 676 | ABINUM="$(echo "$ktag" | grep -P -o 'Ubuntu-(lts-)?.*-\K\d+(?=\..*)')" |
| 677 | echo "#define UTS_UBUNTU_RELEASE_ABI $ABINUM" >> include/generated/utsrelease.h |
| 678 | echo "#define UTS_UBUNTU_RELEASE_ABI $ABINUM" >> "${LINUX_HDROBJ_DIR}/include/generated/utsrelease.h" |
| 679 | ;; |
| 680 | esac |
| 681 | } |
| 682 | |
| 683 | |
| 684 | build_modules() { |
| 685 | |
| 686 | local kdir="$1" |
| 687 | local outdir="$2" |
| 688 | local kversion |
| 689 | |
| 690 | kversion=$(make -C "$LINUX_HDROBJ_DIR" -s kernelversion) |
| 691 | |
| 692 | # Try to catch some compatibility problems by turning some |
| 693 | # warnings into errors. |
| 694 | #export KCFLAGS="$KCFLAGS -Wall -Werror" |
| 695 | |
| 696 | # Enter lttng-modules source dir |
| 697 | cd "${MODULES_GIT_DIR}" |
| 698 | |
| 699 | # kernels 3.10 to 3.10.13 and 3.11 to 3.11.2 introduce a deadlock in the |
| 700 | # timekeeping subsystem. We want those build to fail. |
| 701 | if { vergte "$kversion" "3.10" && verlte "$kversion" "3.10.13"; } || \ |
| 702 | { vergte "$kversion" "3.11" && verlte "$kversion" "3.11.2"; }; then |
| 703 | |
| 704 | set +e |
| 705 | |
| 706 | # Build modules |
| 707 | KERNELDIR="${kdir}" make -j"${NPROC}" V=1 "${make_args[@]}" |
| 708 | ret=$? |
| 709 | |
| 710 | set -e |
| 711 | |
| 712 | # We expect this build to fail, if it doesn't, fail the job. |
| 713 | if [ "$ret" -eq 0 ]; then |
| 714 | echo "This build should have failed." |
| 715 | exit 1 |
| 716 | fi |
| 717 | |
| 718 | # We have to publish at least one file or the build will fail |
| 719 | echo "This kernel is broken, there is a deadlock in the timekeeping subsystem." > "${outdir}/BROKEN.txt.ko" |
| 720 | |
| 721 | KERNELDIR="${kdir}" make clean |
| 722 | |
| 723 | else # Regular build |
| 724 | |
| 725 | # Build modules against full kernel sources |
| 726 | KERNELDIR="${kdir}" make -j"${NPROC}" V=1 "${make_args[@]}" |
| 727 | |
| 728 | # Install modules to build dir |
| 729 | KERNELDIR="${kdir}" make INSTALL_MOD_PATH="${outdir}" modules_install |
| 730 | |
| 731 | # Clean build dir |
| 732 | KERNELDIR="${kdir}" make clean |
| 733 | fi |
| 734 | } |
| 735 | |
| 736 | |
| 737 | ## MAIN ## |
| 738 | |
| 739 | # Use all CPU cores |
| 740 | NPROC=$(nproc) |
| 741 | |
| 742 | MODULES_GIT_DIR="${WORKSPACE}/src/lttng-modules" |
| 743 | LINUX_GIT_DIR="${WORKSPACE}/src/linux" |
| 744 | |
| 745 | LINUX_OBJ_DIR="${WORKSPACE}/linux" |
| 746 | LINUX_SRCOBJ_DIR="${LINUX_OBJ_DIR}/sources" |
| 747 | LINUX_HDROBJ_DIR="${LINUX_OBJ_DIR}/headers" |
| 748 | LINUX_INSTOBJ_DIR="${LINUX_OBJ_DIR}/install" |
| 749 | |
| 750 | MODULES_OUTPUT_KSRC_DIR="${WORKSPACE}/build/lttng-modules-ksrc" |
| 751 | MODULES_OUTPUT_KHDR_DIR="${WORKSPACE}/build/lttng-modules-khdr" |
| 752 | |
| 753 | LINUX_GIT_REF_REPO_DIR="$HOME/gitcache/linux-stable.git/" |
| 754 | |
| 755 | OBJ_STORE_URL="s3://jenkins" |
| 756 | |
| 757 | cd "$WORKSPACE" |
| 758 | |
| 759 | # Create build directories |
| 760 | mkdir -p "${LINUX_SRCOBJ_DIR}" "${LINUX_HDROBJ_DIR}" "${LINUX_INSTOBJ_DIR}" "${MODULES_OUTPUT_KSRC_DIR}" "${MODULES_OUTPUT_KHDR_DIR}" |
| 761 | |
| 762 | git_clone_modules_sources |
| 763 | |
| 764 | # Setup cross compile env if available |
| 765 | if [ "x${cross_arch}" != "x" ]; then |
| 766 | |
| 767 | case "$cross_arch" in |
| 768 | "armhf") |
| 769 | karch="arm" |
| 770 | cross_compile="arm-linux-gnueabihf-" |
| 771 | vanilla_config="imx_v6_v7_defconfig" |
| 772 | ubuntu_config="armhf-config.flavour.generic" |
| 773 | ;; |
| 774 | |
| 775 | "arm64") |
| 776 | karch="arm64" |
| 777 | cross_compile="aarch64-linux-gnu-" |
| 778 | vanilla_config="defconfig" |
| 779 | ubuntu_config="arm64-config.flavour.generic" |
| 780 | ;; |
| 781 | |
| 782 | "powerpc") |
| 783 | karch="powerpc" |
| 784 | cross_compile="powerpc-linux-gnu-" |
| 785 | vanilla_config="ppc44x_defconfig" |
| 786 | ubuntu_config="powerpc-config.flavour.powerpc-smp" |
| 787 | ;; |
| 788 | |
| 789 | "ppc64el") |
| 790 | karch="powerpc" |
| 791 | cross_compile="powerpc64le-linux-gnu-" |
| 792 | vanilla_config="pseries_le_defconfig" |
| 793 | ubuntu_config="ppc64el-config.flavour.generic" |
| 794 | ;; |
| 795 | |
| 796 | *) |
| 797 | echo "Unsupported cross arch $cross_arch" |
| 798 | exit 1 |
| 799 | ;; |
| 800 | esac |
| 801 | |
| 802 | # Export variables used by Kbuild for cross compilation |
| 803 | export ARCH="${karch}" |
| 804 | export CROSS_COMPILE="${cross_compile}" |
| 805 | |
| 806 | # Set arch specific values if we are not cross compiling |
| 807 | elif [ "x${arch}" != "x" ]; then |
| 808 | |
| 809 | case "$arch" in |
| 810 | "i386") |
| 811 | karch="x86" |
| 812 | vanilla_config="allmodconfig" |
| 813 | ubuntu_config="i386-config.flavour.generic" |
| 814 | ;; |
| 815 | |
| 816 | "amd64") |
| 817 | karch="x86" |
| 818 | vanilla_config="allmodconfig" |
| 819 | ubuntu_config="amd64-config.flavour.generic" |
| 820 | ;; |
| 821 | |
| 822 | "armhf") |
| 823 | karch="arm" |
| 824 | vanilla_config="allmodconfig" |
| 825 | ubuntu_config="armhf-config.flavour.generic" |
| 826 | ;; |
| 827 | |
| 828 | "arm64") |
| 829 | karch="arm64" |
| 830 | vanilla_config="allmodconfig" |
| 831 | ubuntu_config="arm64-config.flavour.generic" |
| 832 | ;; |
| 833 | |
| 834 | "powerpc") |
| 835 | karch="powerpc" |
| 836 | vanilla_config="allmodconfig" |
| 837 | ubuntu_config="powerpc-config.flavour.powerpc-smp" |
| 838 | ;; |
| 839 | |
| 840 | "ppc64el") |
| 841 | karch="powerpc" |
| 842 | vanilla_config="allmodconfig" |
| 843 | ubuntu_config="ppc64el-config.flavour.generic" |
| 844 | ;; |
| 845 | |
| 846 | *) |
| 847 | echo "Unsupported arch $arch" |
| 848 | exit 1 |
| 849 | ;; |
| 850 | esac |
| 851 | else |
| 852 | echo "No arch or cross_arch specified" |
| 853 | exit 1 |
| 854 | fi |
| 855 | |
| 856 | |
| 857 | |
| 858 | # First get the kernel build from the object store, or build it, if it's |
| 859 | # not available. |
| 860 | |
| 861 | echo "# Setup endpoint |
| 862 | host_base = obj.internal.efficios.com |
| 863 | host_bucket = obj.internal.efficios.com |
| 864 | bucket_location = us-east-1 |
| 865 | use_https = True |
| 866 | |
| 867 | # Setup access keys |
| 868 | access_key = jenkins |
| 869 | secret_key = echo123456 |
| 870 | |
| 871 | # Enable S3 v4 signature APIs |
| 872 | signature_v2 = False" > "$WORKSPACE/.s3cfg" |
| 873 | |
| 874 | url_hash="$(echo -n "$kgitrepo" | md5sum | awk '{ print $1 }')" |
| 875 | obj_name="linux.tar.bz2" |
| 876 | |
| 877 | if [ "x${cross_arch}" = "x" ]; then |
| 878 | obj_url_prefix="$OBJ_STORE_URL/linux-build/$url_hash/$ktag/platform-${platforms}/$arch/native" |
| 879 | else |
| 880 | obj_url_prefix="$OBJ_STORE_URL/linux-build/$url_hash/$ktag/platform-${platforms}/${cross_arch}" |
| 881 | fi |
| 882 | |
| 883 | obj_url="$obj_url_prefix/$obj_name" |
| 884 | |
| 885 | set +e |
| 886 | # In s3cmd 2.3, the return code of get when an object does not exist (64) |
| 887 | # is different than in 2.2 (12). The return codes of 's3cmd info' are |
| 888 | # consistent between 2.2 and 2.3. |
| 889 | s3cmd -c "$WORKSPACE/.s3cfg" info "$obj_url" |
| 890 | ret=$? |
| 891 | set -e |
| 892 | |
| 893 | case "$ret" in |
| 894 | "0") |
| 895 | s3cmd -c "$WORKSPACE/.s3cfg" get "$obj_url" |
| 896 | extract_archive_obj |
| 897 | ;; |
| 898 | |
| 899 | "12") |
| 900 | echo "File not found" |
| 901 | |
| 902 | # Build all the things and upload |
| 903 | # then finish the module build... |
| 904 | |
| 905 | git_clone_linux_sources |
| 906 | git_export_linux_sources |
| 907 | |
| 908 | select_compiler |
| 909 | |
| 910 | ## PREPARE FULL LINUX SOURCE TREE |
| 911 | build_linux_kernel |
| 912 | |
| 913 | ## EXTRACT DISTRO STYLE KERNEL HEADERS / DEVEL |
| 914 | extract_distro_headers |
| 915 | |
| 916 | tar_archive_obj |
| 917 | |
| 918 | upload_archive_obj |
| 919 | |
| 920 | ;; |
| 921 | |
| 922 | *) |
| 923 | echo "Unknown error? Abort" |
| 924 | exit 1 |
| 925 | ;; |
| 926 | esac |
| 927 | |
| 928 | select_compiler |
| 929 | |
| 930 | selected_cc_version="$(echo "${selected_cc}" | cut -d'-' -f2)" |
| 931 | # lttng-modules requires gcc >= 5.1 for aarch64 |
| 932 | # @see https://github.com/lttng/lttng-modules/commit/be06402dbdbea2f3394e60ec15c5d3356e2be416 |
| 933 | if { verlt "${selected_cc_version}" "5.1"; } && [ "${cross_arch}" = "arm64" ] ; then |
| 934 | echo "Building lltng-modules on aarch64 requires gcc >= 5.1" |
| 935 | exit 0 |
| 936 | fi |
| 937 | |
| 938 | ## BUILD modules |
| 939 | # Either we downloaded a pre-build kernel or we built it and uploaded |
| 940 | # the archive for future builds. |
| 941 | |
| 942 | cd "$WORKSPACE" |
| 943 | |
| 944 | # Build modules against full kernel sources |
| 945 | build_modules "${LINUX_SRCOBJ_DIR}" "${MODULES_OUTPUT_KSRC_DIR}" |
| 946 | |
| 947 | # Build modules against kernel headers |
| 948 | build_modules "${LINUX_HDROBJ_DIR}" "${MODULES_OUTPUT_KHDR_DIR}" |
| 949 | |
| 950 | # Make sure some modules were actually built |
| 951 | tree "${MODULES_OUTPUT_KSRC_DIR}" |
| 952 | if [ "x$(find "${MODULES_OUTPUT_KSRC_DIR}" -name '*.ko*' -printf yes -quit)" != "xyes" ]; then |
| 953 | echo "No modules built!" |
| 954 | exit 1 |
| 955 | fi |
| 956 | |
| 957 | tree "${MODULES_OUTPUT_KHDR_DIR}" |
| 958 | if [ "x$(find "${MODULES_OUTPUT_KHDR_DIR}" -name '*.ko*' -printf yes -quit)" != "xyes" ]; then |
| 959 | echo "No modules built!" |
| 960 | exit 1 |
| 961 | fi |
| 962 | |
| 963 | # EOF |