scripts/lttng-modules/param-build.sh

   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="${platforms:-}"
  30     fi
  31 fi
  32 cross_arch=${cross_arch:-}
  33 ktag=${ktag:-}
  34 kgitrepo=${kgitrepo:-}
  35 mversion=${mversion:-}
  36 mgitrepo=${mgitrepo:-}
  37
  38 ## FUNCTIONS ##
  39
  40 # Kernel version compare functions
  41 verlte() {
  42     [  "$1" = "$(printf '%s\n%s' "$1" "$2" | sort -V | head -n1)" ]
  43 }
  44
  45 verlt() {
  46     # shellcheck disable=SC2015
  47     [ "$1" = "$2" ] && return 1 || verlte "$1" "$2"
  48 }
  49
  50 vergte() {
  51     [  "$1" = "$(printf '%s\n%s' "$1" "$2" | sort -V | tail -n1)" ]
  52 }
  53
  54 vergt() {
  55     # shellcheck disable=SC2015
  56     [ "$1" = "$2" ] && return 1 || vergte "$1" "$2"
  57 }
  58
  59
  60 git_clone_modules_sources() {
  61     mkdir -p "$MODULES_GIT_DIR"
  62
  63     # If the version starts with "refs/", checkout the specific git ref, otherwise treat it
  64     # as a branch name.
  65     if [ "${mversion:0:5}" = "refs/" ]; then
  66         git clone --no-tags --depth=1 "${mgitrepo}" "$MODULES_GIT_DIR"
  67         (cd "$MODULES_GIT_DIR" && git fetch origin "${mversion}" && git checkout FETCH_HEAD)
  68     else
  69         git clone --no-tags --depth=1 -b "${mversion}" "${mgitrepo}" "$MODULES_GIT_DIR"
  70     fi
  71 }
  72
  73 # Checkout a shallow kernel tree of the specified tag
  74 git_clone_linux_sources() {
  75     mkdir -p "$LINUX_GIT_DIR"
  76     git clone --depth=1 -b "${ktag}" --reference "$LINUX_GIT_REF_REPO_DIR" "${kgitrepo}" "$LINUX_GIT_DIR"
  77 }
  78
  79
  80 # Export the kernel sources from the git repo
  81 git_export_linux_sources() {
  82     cd "$LINUX_GIT_DIR"
  83     git archive "${ktag}" | tar -x -C "$LINUX_SRCOBJ_DIR"
  84 }
  85
  86
  87 # Upload the tar archive to the object store
  88 upload_archive_obj() {
  89     s3cmd -c "$WORKSPACE/.s3cfg" put "$WORKSPACE/$obj_name" "$obj_url_prefix/"
  90     rm -f "$WORKSPACE/$obj_name"
  91 }
  92
  93
  94 extract_archive_obj() {
  95     tar -xf "$WORKSPACE/$obj_name" -C "$LINUX_OBJ_DIR"
  96     rm -f "$WORKSPACE/$obj_name"
  97 }
  98
  99
 100 tar_archive_obj() {
 101     cd "$LINUX_OBJ_DIR"
 102     tar -cf "$WORKSPACE/$obj_name" -I pbzip2 .
 103     cd -
 104 }
 105
 106 list_gccs() {
 107     local gccs
 108     gccs=()
 109     IFS=: read -r -a path_array <<< "$PATH"
 110     while read -r gcc ; do
 111         gccs+=("$gcc")
 112     done < <(find "${path_array[@]}" -maxdepth 1 -regex '.*/gcc-[0-9\.]+$' -printf '%f\n' | sort -t- -k2 -V -r)
 113     echo "${gccs[@]}"
 114 }
 115
 116 # Find the most recent GCC version supported by the kernel sources
 117 select_compiler() {
 118     local selected_cc
 119
 120     cd "$LINUX_SRCOBJ_DIR"
 121
 122     kversion=$(make -s kernelversion)
 123
 124     set +e
 125
 126     for cc in $(list_gccs) ; do
 127       if "${CROSS_COMPILE:-}${cc}" -I include/ -D__LINUX_COMPILER_H -D__LINUX_COMPILER_TYPES_H -E include/linux/compiler-gcc.h; then
 128         selected_cc="$cc"
 129         break
 130       fi
 131     done
 132
 133     set -e
 134
 135     if [ "x$selected_cc" = "x" ]; then
 136       echo "Found no suitable compiler."
 137       exit 1
 138     fi
 139
 140     # Force gcc-4.8 for kernels before 3.18
 141     if { verlt "$kversion" "3.18"; }; then
 142       selected_cc=gcc-4.8
 143     fi
 144
 145     if [ "$selected_cc" != "gcc-4.8" ]; then
 146         # Older kernel Makefiles do not expect the compiler to default to PIE
 147         KAFLAGS="-fno-pie"
 148         KCFLAGS="-fno-pie -no-pie -fno-stack-protector"
 149         KCPPFLAGS="-fno-pie"
 150         export KAFLAGS KCFLAGS KCPPFLAGS
 151     fi
 152
 153     export CC="${CROSS_COMPILE:-}${selected_cc}"
 154     export HOSTCC="${selected_cc}"
 155
 156     cd -
 157 }
 158
 159
 160 build_linux_kernel() {
 161     cd "$LINUX_SRCOBJ_DIR"
 162
 163     kversion=$(make -s kernelversion)
 164
 165     # Generate kernel configuration
 166     case "$ktag" in
 167       Ubuntu*)
 168         if [ "${cross_arch}" = "powerpc" ]; then
 169           if vergte "${kversion}" "4.10"; then
 170             echo "Ubuntu removed big endian powerpc configuration from kernel >= 4.10. Don't try to build it."
 171             exit 0
 172           fi
 173         fi
 174
 175         # Disable riscv64 config generation, we don't have a toolchain on bionic
 176         sed -i 's/riscv64 //' debian.master/etc/kernelconfig
 177
 178         fakeroot debian/rules clean KW_DEFCONFIG_DIR=.
 179
 180         # Hack for kernel Ubuntu-hwe-5.8
 181         # The debian/control file is produced by the clean target above, so this
 182         # check needs to happen afterwards.
 183         if [ ! -f "debian/compat" ] && ! grep -q debhelper-compat debian/control; then
 184             echo "10" > "debian/compat"
 185         fi
 186
 187         # genconfigs check can fail in certain cases, eg. when a more recent
 188         # compiler exposes kernel configuration flags which aren't set in the
 189         # Ubuntu annotations.
 190         # In any case, the configuration will be updated with any missing values
 191         # later in our build script.
 192         fakeroot debian/rules genconfigs KW_DEFCONFIG_DIR=. do_skip_checks=true
 193         cp CONFIGS/"${ubuntu_config}" .config
 194         ;;
 195
 196       *)
 197         # Force 32bit build on i386, default is 64bit
 198         if [ "$arch" = "i386" ]; then
 199             export ARCH="i386"
 200         fi
 201
 202         make "${vanilla_config}"
 203         ;;
 204     esac
 205
 206     # oldnoconfig was renamed in 4.19
 207     if vergte "$kversion" "4.19"; then
 208         update_conf_target="olddefconfig"
 209     else
 210         update_conf_target="oldnoconfig"
 211     fi
 212
 213     # Fix 'defined(@array)' was removed from recent perl
 214     if [ -f "kernel/timeconst.pl" ]; then
 215       sed -i 's/defined(\@\(.*\))/@\1/' kernel/timeconst.pl
 216     fi
 217
 218     # Fix syntax of inline assembly which is confused with C++11 raw strings on gcc >= 5
 219     if [ "$HOSTCC" != "gcc-4.8" ]; then
 220       if [ -f "arch/x86/kvm/svm.c" ]; then
 221         sed -i 's/ R"/ R "/g; s/"R"/" R "/g' arch/x86/kvm/svm.c
 222       fi
 223
 224       if [ -f "arch/x86/kvm/vmx.c" ]; then
 225         sed -i 's/ R"/ R "/g; s/"R"/" R "/g' arch/x86/kvm/vmx.c
 226       fi
 227     fi
 228
 229     # Newer binutils don't accept 3 operand 'cmp' instructions on ppc64
 230     # Convert them to 'cmpw' which was previously done silently
 231     if verlt "$kversion" "4.9"; then
 232             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/"
 233             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/"
 234             sed -i "s/\$pie \-o \"\$ofile\"/\$pie --no-dynamic-linker -o \"\$ofile\"/" arch/powerpc/boot/wrapper
 235     fi
 236
 237     # Fix a typo in v2.6.36.x
 238     if [ -f "arch/x86/kernel/entry_64.S" ]; then
 239       sed -i 's/END(do_hypervisor_callback)/END(xen_do_hypervisor_callback)/' arch/x86/kernel/entry_64.S
 240     fi
 241
 242     # Fix compiler switch in vdso Makefile for 2.6.36 to 2.6.36.2
 243     if { vergte "$kversion" "2.6.36" && verlte "$kversion" "2.6.36.3"; }; then
 244       sed -i 's/-m elf_x86_64/-m64/' arch/x86/vdso/Makefile
 245       sed -i 's/-m elf_i386/-m32/' arch/x86/vdso/Makefile
 246     fi
 247
 248     # Fix kernel < 3.0 with gcc >= 4.7
 249     if verlt "$kversion" "3.0"; then
 250       sed -i '/linux\/compiler.h/a #include <linux\/linkage.h> \/* For asmregparm *\/' arch/x86/include/asm/ptrace.h
 251       sed -i 's/extern long syscall_trace_enter/extern asmregparm long syscall_trace_enter/' arch/x86/include/asm/ptrace.h
 252       sed -i 's/extern void syscall_trace_leave/extern asmregparm void syscall_trace_leave/' arch/x86/include/asm/ptrace.h
 253       echo "header-y += linkage.h" >> include/linux/Kbuild
 254     fi
 255
 256     # GCC 4.8
 257     if [ "$HOSTCC" == "gcc-4.8" ]; then
 258       scripts/config --disable CONFIG_CC_STACKPROTECTOR_STRONG
 259     fi
 260
 261     # Don't try to sign modules
 262     scripts/config --disable CONFIG_MODULE_SIG
 263
 264     # Disable kernel stack frame correctness validation, introduced in 4.6.0 and currently fails
 265     scripts/config --disable CONFIG_STACK_VALIDATION
 266
 267     # Cause problems with inline assembly on i386
 268     scripts/config --disable CONFIG_DEBUG_SECTION_MISMATCH
 269
 270     # Don't build samples, they are broken on some kernel releases
 271     scripts/config --disable CONFIG_SAMPLES
 272     scripts/config --disable CONFIG_BUILD_DOCSRC
 273
 274     # Disable kcov
 275     scripts/config --disable CONFIG_KCOV
 276
 277     # Broken on some RT kernels
 278     scripts/config --disable CONFIG_HYPERV
 279
 280     # Broken drivers
 281     scripts/config --disable CONFIG_RAPIDIO_TSI721
 282     scripts/config --disable CONFIG_SGI_XP
 283     scripts/config --disable CONFIG_MFD_WM8994
 284     scripts/config --disable CONFIG_DRM_RADEON
 285     scripts/config --disable CONFIG_SND_SOC_WM5100
 286
 287     # IGBVF won't build with recent gcc on 2.6.38.x
 288     if { vergte "$kversion" "2.6.37" && verlt "$kversion" "2.6.38"; }; then
 289       scripts/config --disable CONFIG_IGBVF
 290     fi
 291
 292     # Don't fail the build on warnings
 293     scripts/config --disable CONFIG_WERROR
 294
 295     # Set required options
 296     scripts/config --enable CONFIG_TRACEPOINTS
 297     scripts/config --enable CONFIG_KALLSYMS
 298     scripts/config --enable CONFIG_HIGH_RES_TIMERS
 299     scripts/config --enable CONFIG_KPROBES
 300     scripts/config --enable CONFIG_FTRACE
 301     scripts/config --enable CONFIG_BLK_DEV_IO_TRACE
 302     scripts/config --enable CONFIG_KALLSYMS_ALL
 303     scripts/config --enable CONFIG_HAVE_SYSCALL_TRACEPOINTS
 304     scripts/config --enable CONFIG_PERF_EVENTS
 305     scripts/config --enable CONFIG_EVENT_TRACING
 306     scripts/config --enable CONFIG_KRETPROBES
 307
 308     # Debug
 309     #cat .config
 310
 311     make "$update_conf_target" CC="$CC"
 312     make -j"$NPROC" CC="$CC"
 313
 314     krelease=$(make -s kernelrelease CC="$CC")
 315
 316     # Save the kernel and modules
 317     mkdir -p "$LINUX_INSTOBJ_DIR/boot"
 318     make INSTALL_MOD_PATH="$LINUX_INSTOBJ_DIR" INSTALL_MOD_STRIP=1 modules_install CC="$CC"
 319     make INSTALL_MOD_PATH="$LINUX_INSTOBJ_DIR" INSTALL_PATH="$LINUX_INSTOBJ_DIR/boot" install CC="$CC"
 320     rm -f "$LINUX_INSTOBJ_DIR/lib/modules/${krelease}/source" "$LINUX_INSTOBJ_DIR/lib/modules/${krelease}/build"
 321     ln -s ../../../../sources "$LINUX_INSTOBJ_DIR/lib/modules/${krelease}/source"
 322     ln -s ../../../../sources "$LINUX_INSTOBJ_DIR/lib/modules/${krelease}/source"
 323 }
 324
 325
 326 extract_distro_headers() {
 327
 328     # Enter linux source dir
 329     cd "${LINUX_SRCOBJ_DIR}"
 330
 331
 332     # For RT kernels, copy version file
 333     if [ -s localversion-rt ]; then
 334         cp -a localversion-rt "${LINUX_HDROBJ_DIR}"
 335     fi
 336
 337     # Copy all Makefile related stuff
 338     find . -path './include/*' -prune \
 339         -o -path './scripts/*' -prune -o -type f \
 340         \( -name 'Makefile*' -o -name 'Kconfig*' -o -name 'Kbuild*' -o \
 341             -name '*.sh' -o -name '*.pl' -o -name '*.lds' \) \
 342         -print | cpio -pd --preserve-modification-time "${LINUX_HDROBJ_DIR}"
 343
 344     # Copy base scripts and include dirs
 345     cp -a scripts include "${LINUX_HDROBJ_DIR}"
 346
 347     # Copy arch includes
 348     (find arch -name include -type d -print0 | \
 349         xargs -0 -n1 -i: find : -type f) | \
 350         cpio -pd --preserve-modification-time "${LINUX_HDROBJ_DIR}"
 351
 352     # Copy arch scripts
 353     (find arch -name scripts -type d -print0 | \
 354         xargs -0 -n1 -i: find : -type f) | \
 355         cpio -pd --preserve-modification-time "${LINUX_HDROBJ_DIR}"
 356
 357     # Cleanup scripts
 358     rm -f "${LINUX_HDROBJ_DIR}/scripts/*.o"
 359     rm -f "${LINUX_HDROBJ_DIR}/scripts/*/*.o"
 360
 361     # On powerpc 32bits this object is required to link modules
 362     if [ "${karch}" = "powerpc" ]; then
 363         if [ "x$(scripts/config -s CONFIG_PPC64)" = "xy" ] && vergte "${kversion}" "5.4"; then
 364             :
 365         else
 366             cp -a --parents arch/powerpc/lib/crtsavres.[So] "${LINUX_HDROBJ_DIR}/"
 367         fi
 368     fi
 369
 370     # On arm64 between 4.13 and 1.15 this object is required to build with ftrace support
 371     if [ "${karch}" = "arm64" ]; then
 372         if [ -f "arch/arm64/kernel/ftrace-mod.S" ]; then
 373             cp -a --parents arch/arm64/kernel/ftrace-mod.[So] "${LINUX_HDROBJ_DIR}/"
 374         fi
 375     fi
 376
 377     # Newer kernels need objtool to build modules when CONFIG_STACK_VALIDATION=y
 378     if [ -f tools/objtool/objtool ]; then
 379       cp -a --parents tools/objtool/objtool "${LINUX_HDROBJ_DIR}/"
 380     fi
 381
 382     if [ -f "arch/x86/kernel/macros.s" ]; then
 383       cp -a --parents arch/x86/kernel/macros.s "${LINUX_HDROBJ_DIR}/"
 384     fi
 385
 386     # Copy modules related stuff, if available
 387     if [ -s Module.symvers ]; then
 388         cp Module.symvers "${LINUX_HDROBJ_DIR}"
 389     fi
 390
 391     if [ -s System.map ]; then
 392         cp System.map "${LINUX_HDROBJ_DIR}"
 393     fi
 394
 395     if [ -s Module.markers ]; then
 396         cp Module.markers "${LINUX_HDROBJ_DIR}"
 397     fi
 398
 399     # Copy config file
 400     cp .config "${LINUX_HDROBJ_DIR}"
 401
 402     # Make sure the Makefile and version.h have a matching timestamp so that
 403     # external modules can be built
 404     if [ -s "${LINUX_HDROBJ_DIR}/include/generated/uapi/linux/version.h" ]; then
 405         touch -r "${LINUX_HDROBJ_DIR}/Makefile" "${LINUX_HDROBJ_DIR}/include/generated/uapi/linux/version.h"
 406     elif [ -s "${LINUX_HDROBJ_DIR}/include/linux/version.h" ]; then
 407         touch -r "${LINUX_HDROBJ_DIR}/Makefile" "${LINUX_HDROBJ_DIR}/include/linux/version.h"
 408     else
 409         echo "Missing version.h"
 410         exit 1
 411     fi
 412     touch -r "${LINUX_HDROBJ_DIR}/.config" "${LINUX_HDROBJ_DIR}/include/generated/autoconf.h"
 413
 414     # Copy .config to include/config/auto.conf so "make prepare" is unnecessary.
 415     if [ ! -f "${LINUX_HDROBJ_DIR}/include/config/auto.conf" ]; then
 416         cp "${LINUX_HDROBJ_DIR}/.config" "${LINUX_HDROBJ_DIR}/include/config/auto.conf"
 417     fi
 418
 419     # Finally clean the object files from the full source tree
 420     make clean
 421
 422     # And regen the modules support files
 423     make modules_prepare CC="$CC"
 424
 425     # On powerpc 32bits this object is required to link modules
 426     if [ "${karch}" = "powerpc" ]; then
 427         if [ "x$(scripts/config -s CONFIG_PPC64)" = "xy" ] && vergte "${kversion}" "5.4"; then
 428             :
 429         else
 430             make arch/powerpc/lib/crtsavres.o CC="$CC"
 431         fi
 432     fi
 433
 434     # On arm64 between 4.13 and 4.15 this object is required to build with ftrace support
 435     if [ "${karch}" = "arm64" ]; then
 436         if [ -f "arch/arm64/kernel/ftrace-mod.S" ]; then
 437             make arch/arm64/kernel/ftrace-mod.o CC="$CC"
 438         fi
 439     fi
 440
 441     # Version specific tasks
 442     case "$ktag" in
 443       Ubuntu*)
 444         # Add Ubuntu ABI number to kernel headers, this is normally done by the packaging code
 445         ABINUM="$(echo "$ktag" | grep -P -o 'Ubuntu-(lts-)?.*-\K\d+(?=\..*)')"
 446         echo "#define UTS_UBUNTU_RELEASE_ABI $ABINUM" >> include/generated/utsrelease.h
 447         echo "#define UTS_UBUNTU_RELEASE_ABI $ABINUM" >> "${LINUX_HDROBJ_DIR}/include/generated/utsrelease.h"
 448         ;;
 449     esac
 450 }
 451
 452
 453 build_modules() {
 454
 455     local kdir="$1"
 456     local outdir="$2"
 457     local kversion
 458
 459     kversion=$(make -C "$LINUX_HDROBJ_DIR" -s kernelversion)
 460
 461     # Try to catch some compatibility problems by turning some
 462     # warnings into errors.
 463     #export KCFLAGS="$KCFLAGS -Wall -Werror"
 464
 465     # Enter lttng-modules source dir
 466     cd "${MODULES_GIT_DIR}"
 467
 468     # kernels 3.10 to 3.10.13 and 3.11 to 3.11.2 introduce a deadlock in the
 469     # timekeeping subsystem. We want those build to fail.
 470     if { vergte "$kversion" "3.10" && verlte "$kversion" "3.10.13"; } || \
 471        { vergte "$kversion" "3.11" && verlte "$kversion" "3.11.2"; }; then
 472
 473         set +e
 474
 475         # Build modules
 476         KERNELDIR="${kdir}" make -j"${NPROC}" V=1 CC="$CC"
 477         ret=$?
 478
 479         set -e
 480
 481         # We expect this build to fail, if it doesn't, fail the job.
 482         if [ "$ret" -eq 0 ]; then
 483             echo "This build should have failed."
 484             exit 1
 485         fi
 486
 487         # We have to publish at least one file or the build will fail
 488         echo "This kernel is broken, there is a deadlock in the timekeeping subsystem." > "${outdir}/BROKEN.txt.ko"
 489
 490         KERNELDIR="${kdir}" make clean
 491
 492     else # Regular build
 493
 494         # Build modules against full kernel sources
 495         KERNELDIR="${kdir}" make -j"${NPROC}" V=1 CC="$CC"
 496
 497         # Install modules to build dir
 498         KERNELDIR="${kdir}" make INSTALL_MOD_PATH="${outdir}" modules_install
 499
 500         # Clean build dir
 501         KERNELDIR="${kdir}" make clean
 502     fi
 503 }
 504
 505
 506 ## MAIN ##
 507
 508 # Use all CPU cores
 509 NPROC=$(nproc)
 510
 511 MODULES_GIT_DIR="${WORKSPACE}/src/lttng-modules"
 512 LINUX_GIT_DIR="${WORKSPACE}/src/linux"
 513
 514 LINUX_OBJ_DIR="${WORKSPACE}/linux"
 515 LINUX_SRCOBJ_DIR="${LINUX_OBJ_DIR}/sources"
 516 LINUX_HDROBJ_DIR="${LINUX_OBJ_DIR}/headers"
 517 LINUX_INSTOBJ_DIR="${LINUX_OBJ_DIR}/install"
 518
 519 MODULES_OUTPUT_KSRC_DIR="${WORKSPACE}/build/lttng-modules-ksrc"
 520 MODULES_OUTPUT_KHDR_DIR="${WORKSPACE}/build/lttng-modules-khdr"
 521
 522 LINUX_GIT_REF_REPO_DIR="$HOME/gitcache/linux-stable.git/"
 523
 524 OBJ_STORE_URL="s3://jenkins"
 525
 526 cd "$WORKSPACE"
 527
 528 # Create build directories
 529 mkdir -p "${LINUX_SRCOBJ_DIR}" "${LINUX_HDROBJ_DIR}" "${LINUX_INSTOBJ_DIR}" "${MODULES_OUTPUT_KSRC_DIR}" "${MODULES_OUTPUT_KHDR_DIR}"
 530
 531 git_clone_modules_sources
 532
 533 # Setup cross compile env if available
 534 if [ "x${cross_arch}" != "x" ]; then
 535
 536     case "$cross_arch" in
 537         "armhf")
 538             karch="arm"
 539             cross_compile="arm-linux-gnueabihf-"
 540             vanilla_config="imx_v6_v7_defconfig"
 541             ubuntu_config="armhf-config.flavour.generic"
 542             ;;
 543
 544         "arm64")
 545             karch="arm64"
 546             cross_compile="aarch64-linux-gnu-"
 547             vanilla_config="defconfig"
 548             ubuntu_config="arm64-config.flavour.generic"
 549             ;;
 550
 551         "powerpc")
 552             karch="powerpc"
 553             cross_compile="powerpc-linux-gnu-"
 554             vanilla_config="ppc44x_defconfig"
 555             ubuntu_config="powerpc-config.flavour.powerpc-smp"
 556             ;;
 557
 558         "ppc64el")
 559             karch="powerpc"
 560             cross_compile="powerpc64le-linux-gnu-"
 561             vanilla_config="pseries_le_defconfig"
 562             ubuntu_config="ppc64el-config.flavour.generic"
 563             ;;
 564
 565         *)
 566             echo "Unsupported cross arch $cross_arch"
 567             exit 1
 568             ;;
 569     esac
 570
 571     # Export variables used by Kbuild for cross compilation
 572     export ARCH="${karch}"
 573     export CROSS_COMPILE="${cross_compile}"
 574
 575 # Set arch specific values if we are not cross compiling
 576 elif [ "x${arch}" != "x" ]; then
 577
 578     case "$arch" in
 579         "i386")
 580             karch="x86"
 581             vanilla_config="allmodconfig"
 582             ubuntu_config="i386-config.flavour.generic"
 583             ;;
 584
 585         "amd64")
 586             karch="x86"
 587             vanilla_config="allmodconfig"
 588             ubuntu_config="amd64-config.flavour.generic"
 589             ;;
 590
 591         "armhf")
 592             karch="arm"
 593             vanilla_config="allmodconfig"
 594             ubuntu_config="armhf-config.flavour.generic"
 595             ;;
 596
 597         "arm64")
 598             karch="arm64"
 599             vanilla_config="allmodconfig"
 600             ubuntu_config="arm64-config.flavour.generic"
 601             ;;
 602
 603         "powerpc")
 604             karch="powerpc"
 605             vanilla_config="allmodconfig"
 606             ubuntu_config="powerpc-config.flavour.powerpc-smp"
 607             ;;
 608
 609         "ppc64el")
 610             karch="powerpc"
 611             vanilla_config="allmodconfig"
 612             ubuntu_config="ppc64el-config.flavour.generic"
 613             ;;
 614
 615         *)
 616             echo "Unsupported arch $arch"
 617             exit 1
 618             ;;
 619     esac
 620 else
 621     echo "No arch or cross_arch specified"
 622     exit 1
 623 fi
 624
 625
 626
 627 # First get the kernel build from the object store, or build it, if it's
 628 # not available.
 629
 630 echo "# Setup endpoint
 631 host_base = obj.internal.efficios.com
 632 host_bucket = obj.internal.efficios.com
 633 bucket_location = us-east-1
 634 use_https = True
 635
 636 # Setup access keys
 637 access_key = jenkins
 638 secret_key = echo123456
 639
 640 # Enable S3 v4 signature APIs
 641 signature_v2 = False" > "$WORKSPACE/.s3cfg"
 642
 643 url_hash="$(echo -n "$kgitrepo" | md5sum | awk '{ print $1 }')"
 644 obj_name="linux.tar.bz2"
 645
 646 if [ "x${cross_arch}" = "x" ]; then
 647         obj_url_prefix="$OBJ_STORE_URL/linux-build/$url_hash/$ktag/platform-${platforms}/$arch/native"
 648 else
 649         obj_url_prefix="$OBJ_STORE_URL/linux-build/$url_hash/$ktag/platform-${platforms}/${cross_arch}"
 650 fi
 651
 652 obj_url="$obj_url_prefix/$obj_name"
 653
 654 set +e
 655 # In s3cmd 2.3, the return code of get when an object does not exist (64)
 656 # is different than in 2.2 (12). The return codes of 's3cmd info' are
 657 # consistent between 2.2 and 2.3.
 658 s3cmd -c "$WORKSPACE/.s3cfg" info "$obj_url"
 659 ret=$?
 660 set -e
 661
 662 case "$ret" in
 663     "0")
 664       s3cmd -c "$WORKSPACE/.s3cfg" get "$obj_url"
 665       extract_archive_obj
 666       ;;
 667
 668     "12")
 669       echo "File not found"
 670
 671       # Build all the things and upload
 672       # then finish the module build...
 673
 674       git_clone_linux_sources
 675       git_export_linux_sources
 676
 677       select_compiler
 678
 679       ## PREPARE FULL LINUX SOURCE TREE
 680       build_linux_kernel
 681
 682       ## EXTRACT DISTRO STYLE KERNEL HEADERS / DEVEL
 683       extract_distro_headers
 684
 685       tar_archive_obj
 686
 687       upload_archive_obj
 688
 689       ;;
 690
 691     *)
 692       echo "Unknown error? Abort"
 693       exit 1
 694       ;;
 695 esac
 696
 697 select_compiler
 698
 699 ## BUILD modules
 700 # Either we downloaded a pre-build kernel or we built it and uploaded
 701 # the archive for future builds.
 702
 703 cd "$WORKSPACE"
 704
 705 # Build modules against full kernel sources
 706 build_modules "${LINUX_SRCOBJ_DIR}" "${MODULES_OUTPUT_KSRC_DIR}"
 707
 708 # Build modules against kernel headers
 709 build_modules "${LINUX_HDROBJ_DIR}" "${MODULES_OUTPUT_KHDR_DIR}"
 710
 711 # Make sure some modules were actually built
 712 tree "${MODULES_OUTPUT_KSRC_DIR}"
 713 if [ "x$(find "${MODULES_OUTPUT_KSRC_DIR}" -name '*.ko*' -printf yes -quit)" != "xyes" ]; then
 714   echo "No modules built!"
 715   exit 1
 716 fi
 717
 718 tree "${MODULES_OUTPUT_KHDR_DIR}"
 719 if [ "x$(find "${MODULES_OUTPUT_KHDR_DIR}" -name '*.ko*' -printf yes -quit)" != "xyes" ]; then
 720   echo "No modules built!"
 721   exit 1
 722 fi
 723
 724 # EOF