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