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 arch=${arch:-amd64}
  22 cross_arch=${cross_arch:-}
  23 ktag=${ktag:-}
  24 kgitrepo=${kgitrepo:-}
  25 mversion=${mversion:-}
  26 mgitrepo=${mgitrepo:-}
  27
  28
  29 ## FUNCTIONS ##
  30
  31 # Kernel version compare functions
  32 verlte() {
  33     [  "$1" = "$(printf '%s\n%s' "$1" "$2" | sort -V | head -n1)" ]
  34 }
  35
  36 verlt() {
  37     # shellcheck disable=SC2015
  38     [ "$1" = "$2" ] && return 1 || verlte "$1" "$2"
  39 }
  40
  41 vergte() {
  42     [  "$1" = "$(printf '%s\n%s' "$1" "$2" | sort -V | tail -n1)" ]
  43 }
  44
  45 vergt() {
  46     # shellcheck disable=SC2015
  47     [ "$1" = "$2" ] && return 1 || vergte "$1" "$2"
  48 }
  49
  50
  51 git_clone_modules_sources() {
  52     mkdir -p "$MODULES_GIT_DIR"
  53
  54     # If the version starts with "refs/", checkout the specific git ref, otherwise treat it
  55     # as a branch name.
  56     if [ "${mversion:0:5}" = "refs/" ]; then
  57         git clone --no-tags --depth=1 "${mgitrepo}" "$MODULES_GIT_DIR"
  58         (cd "$MODULES_GIT_DIR" && git fetch origin "${mversion}" && git checkout FETCH_HEAD)
  59     else
  60         git clone --no-tags --depth=1 -b "${mversion}" "${mgitrepo}" "$MODULES_GIT_DIR"
  61     fi
  62 }
  63
  64 # Checkout a shallow kernel tree of the specified tag
  65 git_clone_linux_sources() {
  66     mkdir -p "$LINUX_GIT_DIR"
  67     git clone --depth=1 -b "${ktag}" --reference "$LINUX_GIT_REF_REPO_DIR" "${kgitrepo}" "$LINUX_GIT_DIR"
  68 }
  69
  70
  71 # Export the kernel sources from the git repo
  72 git_export_linux_sources() {
  73     cd "$LINUX_GIT_DIR"
  74     git archive "${ktag}" | tar -x -C "$LINUX_SRCOBJ_DIR"
  75 }
  76
  77
  78 # Upload the tar archive to the object store
  79 upload_archive_obj() {
  80     s3cmd -c "$WORKSPACE/.s3cfg" put "$WORKSPACE/$obj_name" "$obj_url_prefix/"
  81     rm -f "$WORKSPACE/$obj_name"
  82 }
  83
  84
  85 extract_archive_obj() {
  86     tar -xf "$WORKSPACE/$obj_name" -C "$LINUX_OBJ_DIR"
  87     rm -f "$WORKSPACE/$obj_name"
  88 }
  89
  90
  91 tar_archive_obj() {
  92     cd "$LINUX_OBJ_DIR"
  93     tar -cf "$WORKSPACE/$obj_name" -I pbzip2 .
  94     cd -
  95 }
  96
  97 list_gccs() {
  98     local gccs
  99     gccs=()
 100     IFS=: read -r -a path_array <<< "$PATH"
 101     while read -r gcc ; do
 102         gccs+=("$gcc")
 103     done < <(find "${path_array[@]}" -maxdepth 1 -regex '.*/gcc-[0-9\.]+$' -printf '%f\n' | sort -t- -k2 -V -r)
 104     echo "${gccs[@]}"
 105 }
 106
 107 # Find the most recent GCC version supported by the kernel sources
 108 select_compiler() {
 109     local selected_cc
 110
 111     cd "$LINUX_SRCOBJ_DIR"
 112
 113     kversion=$(make -s kernelversion)
 114
 115     set +e
 116
 117     for cc in $(list_gccs) ; do
 118       if "${CROSS_COMPILE:-}${cc}" -I include/ -D__LINUX_COMPILER_H -D__LINUX_COMPILER_TYPES_H -E include/linux/compiler-gcc.h; then
 119         selected_cc="$cc"
 120         break
 121       fi
 122     done
 123
 124     set -e
 125
 126     if [ "x$selected_cc" = "x" ]; then
 127       echo "Found no suitable compiler."
 128       exit 1
 129     fi
 130
 131     # Force gcc-4.8 for kernels before 3.18
 132     if { verlt "$kversion" "3.18"; }; then
 133       selected_cc=gcc-4.8
 134     fi
 135
 136     if [ "$selected_cc" != "gcc-4.8" ]; then
 137         # Older kernel Makefiles do not expect the compiler to default to PIE
 138         KAFLAGS="-fno-pie"
 139         KCFLAGS="-fno-pie -no-pie -fno-stack-protector"
 140         KCPPFLAGS="-fno-pie"
 141         export KAFLAGS KCFLAGS KCPPFLAGS
 142     fi
 143
 144     export CC="${CROSS_COMPILE:-}${selected_cc}"
 145     export HOSTCC="${selected_cc}"
 146
 147     cd -
 148 }
 149
 150
 151 build_linux_kernel() {
 152     cd "$LINUX_SRCOBJ_DIR"
 153
 154     kversion=$(make -s kernelversion)
 155
 156     # Generate kernel configuration
 157     case "$ktag" in
 158       Ubuntu*)
 159         if [ "${cross_arch}" = "powerpc" ]; then
 160           if vergte "${kversion}" "4.10"; then
 161             echo "Ubuntu removed big endian powerpc configuration from kernel >= 4.10. Don't try to build it."
 162             exit 0
 163           fi
 164         fi
 165
 166         # Disable riscv64 config generation, we don't have a toolchain on bionic
 167         sed -i 's/riscv64 //' debian.master/etc/kernelconfig
 168
 169         fakeroot debian/rules clean KW_DEFCONFIG_DIR=.
 170
 171         # Hack for kernel Ubuntu-hwe-5.8
 172         # The debian/control file is produced by the clean target above, so this
 173         # check needs to happen afterwards.
 174         if [ ! -f "debian/compat" ] && ! grep -q debhelper-compat debian/control; then
 175             echo "10" > "debian/compat"
 176         fi
 177
 178         # genconfigs check can fail in certain cases, eg. when a more recent
 179         # compiler exposes kernel configuration flags which aren't set in the
 180         # Ubuntu annotations.
 181         # In any case, the configuration will be updated with any missing values
 182         # later in our build script.
 183         fakeroot debian/rules genconfigs KW_DEFCONFIG_DIR=. do_skip_checks=true
 184         cp CONFIGS/"${ubuntu_config}" .config
 185         ;;
 186
 187       *)
 188         # Force 32bit build on i386, default is 64bit
 189         if [ "$arch" = "i386" ]; then
 190             export ARCH="i386"
 191         fi
 192
 193         # allyesconfig is mostly broken for kernels of the 2.6 series
 194         if verlt "$kversion" "3.0"; then
 195             vanilla_config="defconfig"
 196         fi
 197
 198         make "${vanilla_config}"
 199         ;;
 200     esac
 201
 202     # oldnoconfig was renamed in 4.19
 203     if vergte "$kversion" "4.19"; then
 204         update_conf_target="olddefconfig"
 205     else
 206         update_conf_target="oldnoconfig"
 207     fi
 208
 209     # Fix 'defined(@array)' was removed from recent perl
 210     if [ -f "kernel/timeconst.pl" ]; then
 211       sed -i 's/defined(\@\(.*\))/@\1/' kernel/timeconst.pl
 212     fi
 213
 214     # Fix syntax of inline assembly which is confused with C++11 raw strings on gcc >= 5
 215     if [ "$HOSTCC" != "gcc-4.8" ]; then
 216       if [ -f "arch/x86/kvm/svm.c" ]; then
 217         sed -i 's/ R"/ R "/g; s/"R"/" R "/g' arch/x86/kvm/svm.c
 218       fi
 219
 220       if [ -f "arch/x86/kvm/vmx.c" ]; then
 221         sed -i 's/ R"/ R "/g; s/"R"/" R "/g' arch/x86/kvm/vmx.c
 222       fi
 223     fi
 224
 225     # Newer binutils don't accept 3 operand 'cmp' instructions on ppc64
 226     # Convert them to 'cmpw' which was previously done silently
 227     if verlt "$kversion" "4.9"; then
 228             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/"
 229             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/"
 230             sed -i "s/\$pie \-o \"\$ofile\"/\$pie --no-dynamic-linker -o \"\$ofile\"/" arch/powerpc/boot/wrapper
 231     fi
 232
 233     # Fix a typo in v2.6.36.x
 234     if [ -f "arch/x86/kernel/entry_64.S" ]; then
 235       sed -i 's/END(do_hypervisor_callback)/END(xen_do_hypervisor_callback)/' arch/x86/kernel/entry_64.S
 236     fi
 237
 238     # Fix compiler switch in vdso Makefile for 2.6.36 to 2.6.36.2
 239     if { vergte "$kversion" "2.6.36" && verlte "$kversion" "2.6.36.3"; }; then
 240       sed -i 's/-m elf_x86_64/-m64/' arch/x86/vdso/Makefile
 241       sed -i 's/-m elf_i386/-m32/' arch/x86/vdso/Makefile
 242     fi
 243
 244     # Fix kernel < 3.0 with gcc >= 4.7
 245     if verlt "$kversion" "3.0"; then
 246       sed -i '/linux\/compiler.h/a #include <linux\/linkage.h> \/* For asmregparm *\/' arch/x86/include/asm/ptrace.h
 247       sed -i 's/extern long syscall_trace_enter/extern asmregparm long syscall_trace_enter/' arch/x86/include/asm/ptrace.h
 248       sed -i 's/extern void syscall_trace_leave/extern asmregparm void syscall_trace_leave/' arch/x86/include/asm/ptrace.h
 249       echo "header-y += linkage.h" >> include/linux/Kbuild
 250     fi
 251
 252     # GCC 4.8
 253     if [ "$HOSTCC" == "gcc-4.8" ]; then
 254       scripts/config --disable CONFIG_CC_STACKPROTECTOR_STRONG
 255     fi
 256
 257     # Don't try to sign modules
 258     scripts/config --disable CONFIG_MODULE_SIG
 259
 260     # Disable kernel stack frame correctness validation, introduced in 4.6.0 and currently fails
 261     scripts/config --disable CONFIG_STACK_VALIDATION
 262
 263     # Cause problems with inline assembly on i386
 264     scripts/config --disable CONFIG_DEBUG_SECTION_MISMATCH
 265
 266     # Don't build samples, they are broken on some kernel releases
 267     scripts/config --disable CONFIG_SAMPLES
 268     scripts/config --disable CONFIG_BUILD_DOCSRC
 269
 270     # Disable kcov
 271     scripts/config --disable CONFIG_KCOV
 272
 273     # Broken on some RT kernels
 274     scripts/config --disable CONFIG_HYPERV
 275
 276     # Broken drivers
 277     scripts/config --disable CONFIG_RAPIDIO_TSI721
 278     scripts/config --disable CONFIG_SGI_XP
 279     scripts/config --disable CONFIG_MFD_WM8994
 280     scripts/config --disable CONFIG_DRM_RADEON
 281     scripts/config --disable CONFIG_SND_SOC_WM5100
 282
 283     # IGBVF won't build with recent gcc on 2.6.38.x
 284     if { vergte "$kversion" "2.6.37" && verlt "$kversion" "2.6.38"; }; then
 285       scripts/config --disable CONFIG_IGBVF
 286     fi
 287
 288     # Don't fail the build on warnings
 289     scripts/config --disable CONFIG_WERROR
 290
 291     # Set required options
 292     scripts/config --enable CONFIG_TRACEPOINTS
 293     scripts/config --enable CONFIG_KALLSYMS
 294     scripts/config --enable CONFIG_HIGH_RES_TIMERS
 295     scripts/config --enable CONFIG_KPROBES
 296     scripts/config --enable CONFIG_FTRACE
 297     scripts/config --enable CONFIG_BLK_DEV_IO_TRACE
 298     scripts/config --enable CONFIG_KALLSYMS_ALL
 299     scripts/config --enable CONFIG_HAVE_SYSCALL_TRACEPOINTS
 300     scripts/config --enable CONFIG_PERF_EVENTS
 301     scripts/config --enable CONFIG_EVENT_TRACING
 302     scripts/config --enable CONFIG_KRETPROBES
 303
 304     # FIXME: disable objtool on vmlinux, it OOMs on allyesconfig
 305     sed -i 's/objtool_link vmlinux.o//' scripts/link-vmlinux.sh || true
 306     # Starting with v6.1-rc6
 307     sed -i 's/^objtool-enabled := .*/objtool-enabled := /' scripts/Makefile.vmlinux_o || true
 308
 309     # Disable SORTTAB
 310     sed -i 's/is_enabled CONFIG_BUILDTIME_TABLE_SORT/is_enabled CONFIG_NONEXISTANT/' scripts/link-vmlinux.sh || true
 311
 312     # Debug
 313     #cat .config
 314
 315     make "$update_conf_target" CC="$CC"
 316     make -j"$NPROC" CC="$CC"
 317
 318     krelease=$(make -s kernelrelease CC="$CC")
 319
 320     # Save the kernel and modules
 321     mkdir -p "$LINUX_INSTOBJ_DIR/boot"
 322     make INSTALL_MOD_PATH="$LINUX_INSTOBJ_DIR" INSTALL_MOD_STRIP=1 modules_install CC="$CC"
 323     make INSTALL_MOD_PATH="$LINUX_INSTOBJ_DIR" INSTALL_PATH="$LINUX_INSTOBJ_DIR/boot" install CC="$CC"
 324     rm -f "$LINUX_INSTOBJ_DIR/lib/modules/${krelease}/source" "$LINUX_INSTOBJ_DIR/lib/modules/${krelease}/build"
 325     ln -s ../../../../sources "$LINUX_INSTOBJ_DIR/lib/modules/${krelease}/source"
 326     ln -s ../../../../sources "$LINUX_INSTOBJ_DIR/lib/modules/${krelease}/source"
 327 }
 328
 329
 330 extract_distro_headers() {
 331
 332     # Enter linux source dir
 333     cd "${LINUX_SRCOBJ_DIR}"
 334
 335
 336     # For RT kernels, copy version file
 337     if [ -s localversion-rt ]; then
 338         cp -a localversion-rt "${LINUX_HDROBJ_DIR}"
 339     fi
 340
 341     # Copy all Makefile related stuff
 342     find . -path './include/*' -prune \
 343         -o -path './scripts/*' -prune -o -type f \
 344         \( -name 'Makefile*' -o -name 'Kconfig*' -o -name 'Kbuild*' -o \
 345             -name '*.sh' -o -name '*.pl' -o -name '*.lds' \) \
 346         -print | cpio -pd --preserve-modification-time "${LINUX_HDROBJ_DIR}"
 347
 348     # Copy base scripts and include dirs
 349     cp -a scripts include "${LINUX_HDROBJ_DIR}"
 350
 351     # Copy arch includes
 352     (find arch -name include -type d -print0 | \
 353         xargs -0 -n1 -i: find : -type f) | \
 354         cpio -pd --preserve-modification-time "${LINUX_HDROBJ_DIR}"
 355
 356     # Copy arch scripts
 357     (find arch -name scripts -type d -print0 | \
 358         xargs -0 -n1 -i: find : -type f) | \
 359         cpio -pd --preserve-modification-time "${LINUX_HDROBJ_DIR}"
 360
 361     # Cleanup scripts
 362     rm -f "${LINUX_HDROBJ_DIR}/scripts/*.o"
 363     rm -f "${LINUX_HDROBJ_DIR}/scripts/*/*.o"
 364
 365     # On powerpc 32bits this object is required to link modules
 366     if [ "${karch}" = "powerpc" ]; then
 367         if [ "x$(scripts/config -s CONFIG_PPC64)" = "xy" ] && vergte "${kversion}" "5.4"; then
 368             :
 369         else
 370             cp -a --parents arch/powerpc/lib/crtsavres.[So] "${LINUX_HDROBJ_DIR}/"
 371         fi
 372     fi
 373
 374     # On arm64 between 4.13 and 1.15 this object is required to build with ftrace support
 375     if [ "${karch}" = "arm64" ]; then
 376         if [ -f "arch/arm64/kernel/ftrace-mod.S" ]; then
 377             cp -a --parents arch/arm64/kernel/ftrace-mod.[So] "${LINUX_HDROBJ_DIR}/"
 378         fi
 379     fi
 380
 381     # Newer kernels need objtool to build modules when CONFIG_STACK_VALIDATION=y
 382     if [ -f tools/objtool/objtool ]; then
 383       cp -a --parents tools/objtool/objtool "${LINUX_HDROBJ_DIR}/"
 384     fi
 385
 386     if [ -f "arch/x86/kernel/macros.s" ]; then
 387       cp -a --parents arch/x86/kernel/macros.s "${LINUX_HDROBJ_DIR}/"
 388     fi
 389
 390     # Copy modules related stuff, if available
 391     if [ -s Module.symvers ]; then
 392         cp Module.symvers "${LINUX_HDROBJ_DIR}"
 393     fi
 394
 395     if [ -s System.map ]; then
 396         cp System.map "${LINUX_HDROBJ_DIR}"
 397     fi
 398
 399     if [ -s Module.markers ]; then
 400         cp Module.markers "${LINUX_HDROBJ_DIR}"
 401     fi
 402
 403     # Copy config file
 404     cp .config "${LINUX_HDROBJ_DIR}"
 405
 406     # Make sure the Makefile and version.h have a matching timestamp so that
 407     # external modules can be built
 408     if [ -s "${LINUX_HDROBJ_DIR}/include/generated/uapi/linux/version.h" ]; then
 409         touch -r "${LINUX_HDROBJ_DIR}/Makefile" "${LINUX_HDROBJ_DIR}/include/generated/uapi/linux/version.h"
 410     elif [ -s "${LINUX_HDROBJ_DIR}/include/linux/version.h" ]; then
 411         touch -r "${LINUX_HDROBJ_DIR}/Makefile" "${LINUX_HDROBJ_DIR}/include/linux/version.h"
 412     else
 413         echo "Missing version.h"
 414         exit 1
 415     fi
 416     touch -r "${LINUX_HDROBJ_DIR}/.config" "${LINUX_HDROBJ_DIR}/include/generated/autoconf.h"
 417
 418     # Copy .config to include/config/auto.conf so "make prepare" is unnecessary.
 419     if [ ! -f "${LINUX_HDROBJ_DIR}/include/config/auto.conf" ]; then
 420         cp "${LINUX_HDROBJ_DIR}/.config" "${LINUX_HDROBJ_DIR}/include/config/auto.conf"
 421     fi
 422
 423     # Finally clean the object files from the full source tree
 424     make clean
 425
 426     # And regen the modules support files
 427     make modules_prepare CC="$CC"
 428
 429     # On powerpc 32bits this object is required to link modules
 430     if [ "${karch}" = "powerpc" ]; then
 431         if [ "x$(scripts/config -s CONFIG_PPC64)" = "xy" ] && vergte "${kversion}" "5.4"; then
 432             :
 433         else
 434             make arch/powerpc/lib/crtsavres.o CC="$CC"
 435         fi
 436     fi
 437
 438     # On arm64 between 4.13 and 4.15 this object is required to build with ftrace support
 439     if [ "${karch}" = "arm64" ]; then
 440         if [ -f "arch/arm64/kernel/ftrace-mod.S" ]; then
 441             make arch/arm64/kernel/ftrace-mod.o CC="$CC"
 442         fi
 443     fi
 444
 445     # Version specific tasks
 446     case "$ktag" in
 447       Ubuntu*)
 448         # Add Ubuntu ABI number to kernel headers, this is normally done by the packaging code
 449         ABINUM="$(echo "$ktag" | grep -P -o 'Ubuntu-(lts-)?.*-\K\d+(?=\..*)')"
 450         echo "#define UTS_UBUNTU_RELEASE_ABI $ABINUM" >> include/generated/utsrelease.h
 451         echo "#define UTS_UBUNTU_RELEASE_ABI $ABINUM" >> "${LINUX_HDROBJ_DIR}/include/generated/utsrelease.h"
 452         ;;
 453     esac
 454 }
 455
 456
 457 build_modules() {
 458
 459     local kdir="$1"
 460     local outdir="$2"
 461     local kversion
 462
 463     kversion=$(make -C "$LINUX_HDROBJ_DIR" -s kernelversion)
 464
 465     # Try to catch some compatibility problems by turning some
 466     # warnings into errors.
 467     #export KCFLAGS="$KCFLAGS -Wall -Werror"
 468
 469     # Enter lttng-modules source dir
 470     cd "${MODULES_GIT_DIR}"
 471
 472     # kernels 3.10 to 3.10.13 and 3.11 to 3.11.2 introduce a deadlock in the
 473     # timekeeping subsystem. We want those build to fail.
 474     if { vergte "$kversion" "3.10" && verlte "$kversion" "3.10.13"; } || \
 475        { vergte "$kversion" "3.11" && verlte "$kversion" "3.11.2"; }; then
 476
 477         set +e
 478
 479         # Build modules
 480         KERNELDIR="${kdir}" make -j"${NPROC}" V=1 CC="$CC"
 481         ret=$?
 482
 483         set -e
 484
 485         # We expect this build to fail, if it doesn't, fail the job.
 486         if [ "$ret" -eq 0 ]; then
 487             echo "This build should have failed."
 488             exit 1
 489         fi
 490
 491         # We have to publish at least one file or the build will fail
 492         echo "This kernel is broken, there is a deadlock in the timekeeping subsystem." > "${outdir}/BROKEN.txt.ko"
 493
 494         KERNELDIR="${kdir}" make clean
 495
 496     else # Regular build
 497
 498         # Build modules against full kernel sources
 499         KERNELDIR="${kdir}" make -j"${NPROC}" V=1 CC="$CC"
 500
 501         # Install modules to build dir
 502         KERNELDIR="${kdir}" make INSTALL_MOD_PATH="${outdir}" modules_install
 503
 504         # Clean build dir
 505         KERNELDIR="${kdir}" make clean
 506     fi
 507 }
 508
 509
 510 ## MAIN ##
 511
 512 # Use all CPU cores
 513 NPROC=$(nproc)
 514
 515 MODULES_GIT_DIR="${WORKSPACE}/src/lttng-modules"
 516 LINUX_GIT_DIR="${WORKSPACE}/src/linux"
 517
 518 LINUX_OBJ_DIR="${WORKSPACE}/linux"
 519 LINUX_SRCOBJ_DIR="${LINUX_OBJ_DIR}/sources"
 520 LINUX_HDROBJ_DIR="${LINUX_OBJ_DIR}/headers"
 521 LINUX_INSTOBJ_DIR="${LINUX_OBJ_DIR}/install"
 522
 523 MODULES_OUTPUT_KSRC_DIR="${WORKSPACE}/build/lttng-modules-ksrc"
 524 MODULES_OUTPUT_KHDR_DIR="${WORKSPACE}/build/lttng-modules-khdr"
 525
 526 LINUX_GIT_REF_REPO_DIR="$HOME/gitcache/linux-stable.git/"
 527
 528 OBJ_STORE_URL="s3://jenkins"
 529
 530 cd "$WORKSPACE"
 531
 532 # Create build directories
 533 mkdir -p "${LINUX_SRCOBJ_DIR}" "${LINUX_HDROBJ_DIR}" "${LINUX_INSTOBJ_DIR}" "${MODULES_OUTPUT_KSRC_DIR}" "${MODULES_OUTPUT_KHDR_DIR}"
 534
 535 git_clone_modules_sources
 536
 537 # Setup cross compile env if available
 538 if [ "x${cross_arch}" != "x" ]; then
 539
 540     case "$cross_arch" in
 541         "armhf")
 542             karch="arm"
 543             cross_compile="arm-linux-gnueabihf-"
 544             vanilla_config="imx_v6_v7_defconfig"
 545             ubuntu_config="armhf-config.flavour.generic"
 546             ;;
 547
 548         "arm64")
 549             karch="arm64"
 550             cross_compile="aarch64-linux-gnu-"
 551             vanilla_config="defconfig"
 552             ubuntu_config="arm64-config.flavour.generic"
 553             ;;
 554
 555         "powerpc")
 556             karch="powerpc"
 557             cross_compile="powerpc-linux-gnu-"
 558             vanilla_config="ppc44x_defconfig"
 559             ubuntu_config="powerpc-config.flavour.powerpc-smp"
 560             ;;
 561
 562         "ppc64el")
 563             karch="powerpc"
 564             cross_compile="powerpc64le-linux-gnu-"
 565             vanilla_config="pseries_le_defconfig"
 566             ubuntu_config="ppc64el-config.flavour.generic"
 567             ;;
 568
 569         *)
 570             echo "Unsupported cross arch $cross_arch"
 571             exit 1
 572             ;;
 573     esac
 574
 575     # Export variables used by Kbuild for cross compilation
 576     export ARCH="${karch}"
 577     export CROSS_COMPILE="${cross_compile}"
 578
 579 # Set arch specific values if we are not cross compiling
 580 elif [ "x${arch}" != "x" ]; then
 581
 582     case "$arch" in
 583         "i386")
 584             karch="x86"
 585             vanilla_config="allyesconfig"
 586             ubuntu_config="i386-config.flavour.generic"
 587             ;;
 588
 589         "amd64")
 590             karch="x86"
 591             vanilla_config="allyesconfig"
 592             ubuntu_config="amd64-config.flavour.generic"
 593             ;;
 594
 595         "armhf")
 596             karch="arm"
 597             vanilla_config="allyesconfig"
 598             ubuntu_config="armhf-config.flavour.generic"
 599             ;;
 600
 601         "arm64")
 602             karch="arm64"
 603             vanilla_config="allyesconfig"
 604             ubuntu_config="arm64-config.flavour.generic"
 605             ;;
 606
 607         "powerpc")
 608             karch="powerpc"
 609             vanilla_config="allyesconfig"
 610             ubuntu_config="powerpc-config.flavour.powerpc-smp"
 611             ;;
 612
 613         "ppc64el")
 614             karch="powerpc"
 615             vanilla_config="allyesconfig"
 616             ubuntu_config="ppc64el-config.flavour.generic"
 617             ;;
 618
 619         *)
 620             echo "Unsupported arch $arch"
 621             exit 1
 622             ;;
 623     esac
 624 else
 625     echo "No arch or cross_arch specified"
 626     exit 1
 627 fi
 628
 629
 630
 631 # First get the kernel build from the object store, or build it, if it's
 632 # not available.
 633
 634 echo "# Setup endpoint
 635 host_base = obj.internal.efficios.com
 636 host_bucket = obj.internal.efficios.com
 637 bucket_location = us-east-1
 638 use_https = True
 639
 640 # Setup access keys
 641 access_key = jenkins
 642 secret_key = echo123456
 643
 644 # Enable S3 v4 signature APIs
 645 signature_v2 = False" > "$WORKSPACE/.s3cfg"
 646
 647 url_hash="$(echo -n "$kgitrepo" | md5sum | awk '{ print $1 }')"
 648 obj_name="linux.tar.bz2"
 649
 650 if [ "x${cross_arch}" = "x" ]; then
 651         obj_url_prefix="$OBJ_STORE_URL/linux-build/$url_hash/$ktag/$arch/native"
 652 else
 653         obj_url_prefix="$OBJ_STORE_URL/linux-build/$url_hash/$ktag/${cross_arch}"
 654 fi
 655
 656 obj_url="$obj_url_prefix/$obj_name"
 657
 658 set +e
 659 # In s3cmd 2.3, the return code of get when an object does not exist (64)
 660 # is different than in 2.2 (12). The return codes of 's3cmd info' are
 661 # consistent between 2.2 and 2.3.
 662 s3cmd -c "$WORKSPACE/.s3cfg" info "$obj_url"
 663 ret=$?
 664 set -e
 665
 666 case "$ret" in
 667     "0")
 668       s3cmd -c "$WORKSPACE/.s3cfg" get "$obj_url"
 669       extract_archive_obj
 670       ;;
 671
 672     "12")
 673       echo "File not found"
 674
 675       # Build all the things and upload
 676       # then finish the module build...
 677
 678       git_clone_linux_sources
 679       git_export_linux_sources
 680
 681       select_compiler
 682
 683       ## PREPARE FULL LINUX SOURCE TREE
 684       build_linux_kernel
 685
 686       ## EXTRACT DISTRO STYLE KERNEL HEADERS / DEVEL
 687       extract_distro_headers
 688
 689       tar_archive_obj
 690
 691       upload_archive_obj
 692
 693       ;;
 694
 695     *)
 696       echo "Unknown error? Abort"
 697       exit 1
 698       ;;
 699 esac
 700
 701 select_compiler
 702
 703 ## BUILD modules
 704 # Either we downloaded a pre-build kernel or we built it and uploaded
 705 # the archive for future builds.
 706
 707 cd "$WORKSPACE"
 708
 709 # Build modules against full kernel sources
 710 build_modules "${LINUX_SRCOBJ_DIR}" "${MODULES_OUTPUT_KSRC_DIR}"
 711
 712 # Build modules against kernel headers
 713 build_modules "${LINUX_HDROBJ_DIR}" "${MODULES_OUTPUT_KHDR_DIR}"
 714
 715 # Make sure some modules were actually built
 716 tree "${MODULES_OUTPUT_KSRC_DIR}"
 717 if [ "x$(find "${MODULES_OUTPUT_KSRC_DIR}" -name '*.ko*' -printf yes -quit)" != "xyes" ]; then
 718   echo "No modules built!"
 719   exit 1
 720 fi
 721
 722 tree "${MODULES_OUTPUT_KHDR_DIR}"
 723 if [ "x$(find "${MODULES_OUTPUT_KHDR_DIR}" -name '*.ko*' -printf yes -quit)" != "xyes" ]; then
 724   echo "No modules built!"
 725   exit 1
 726 fi
 727
 728 # EOF