scripts/lttng-modules/param-build.sh

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