scripts/lttng-modules/param-build.sh

   1 #!/bin/bash -exu
   2 #
   3 # Copyright (C) 2016-2018 - 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=$(make -s kernelversion)
  92
  93     set +e
  94
  95     for cc in gcc-7 gcc-5 gcc-4.8; do
  96       if "${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$selected_cc" = "x" ]; then
 105       echo "Found no suitable compiler."
 106       exit 1
 107     fi
 108
 109     # Force gcc-4 for buggy kernel branches
 110     if { vergte "$kversion" "3.2" && verlt "$kversion" "3.3"; } || \
 111        { vergte "$kversion" "3.4" && verlt "$kversion" "3.5"; } || \
 112        { vergte "$kversion" "3.17" && verlt "$kversion" "3.18"; }; then
 113       selected_cc=gcc-4.8
 114     fi
 115
 116     case "$ktag" in
 117       Ubuntu*)
 118         if { vergte "$kversion" "3.13" && verlt "$kversion" "3.14"; }; then
 119           selected_cc=gcc-4.8
 120         fi
 121       ;;
 122     esac
 123
 124     export CC="${CROSS_COMPILE:-}${selected_cc}"
 125
 126     cd -
 127 }
 128
 129
 130 build_linux_kernel() {
 131     cd "$LINUX_SRCOBJ_DIR"
 132
 133     kversion=$(make -s kernelversion)
 134
 135     # Generate kernel configuration
 136     case "$ktag" in
 137       Ubuntu*)
 138         if [ "${cross_arch}" = "powerpc" ]; then
 139           if vergte "${kversion}" "4.10"; then
 140             echo "Ubuntu removed big endian powerpc configuration from kernel >= 4.10. Don't try to build it."
 141             exit 0
 142           fi
 143         fi
 144         fakeroot debian/rules clean
 145         fakeroot debian/rules genconfigs
 146         cp CONFIGS/"${ubuntu_config}" .config
 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 "${vanilla_config}"
 160         ;;
 161     esac
 162
 163     # silentoldconfig was renamed in 4.19
 164     if vergte "$kversion" "4.19"; then
 165         update_conf_target="syncconfig"
 166     else
 167         update_conf_target="silentoldconfig"
 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 [ "$CC" != "gcc-4.8" ]; then
 177       if [ -f "arch/x86/kvm/svm.c" ]; then
 178         sed -i 's/ R"/ R "/g; s/"R"/" R "/g' arch/x86/kvm/svm.c
 179       fi
 180
 181       if [ -f "arch/x86/kvm/vmx.c" ]; then
 182         sed -i 's/ R"/ R "/g; s/"R"/" R "/g' arch/x86/kvm/vmx.c
 183       fi
 184     fi
 185
 186     # Fix a typo in v2.6.36.x
 187     if [ -f "arch/x86/kernel/entry_64.S" ]; then
 188       sed -i 's/END(do_hypervisor_callback)/END(xen_do_hypervisor_callback)/' arch/x86/kernel/entry_64.S
 189     fi
 190
 191     # Fix kernel < 3.0 with gcc >= 4.7
 192     if verlt "$kversion" "3.0"; then
 193       sed -i '/linux\/compiler.h/a #include <linux\/linkage.h> \/* For asmregparm *\/' arch/x86/include/asm/ptrace.h
 194       sed -i 's/extern long syscall_trace_enter/extern asmregparm long syscall_trace_enter/' arch/x86/include/asm/ptrace.h
 195       sed -i 's/extern void syscall_trace_leave/extern asmregparm void syscall_trace_leave/' arch/x86/include/asm/ptrace.h
 196       echo "header-y += linkage.h" >> include/linux/Kbuild
 197     fi
 198
 199     # GCC 4.8
 200     sed -i "s/CONFIG_CC_STACKPROTECTOR_STRONG=y/# CONFIG_CC_STACKPROTECTOR_STRONG is not set/g" .config
 201
 202     # Don't try to sign modules
 203     sed -i "s/CONFIG_MODULE_SIG=y/# CONFIG_MODULE_SIG is not set/g" .config
 204
 205     # Disable kernel stack frame correctness validation, introduced in 4.6.0 and currently fails
 206     sed -i "s/CONFIG_STACK_VALIDATION=y/# CONFIG_STACK_VALIDATION is not set/g" .config
 207
 208     # Cause problems with inline assembly on i386
 209     sed -i "s/CONFIG_DEBUG_SECTION_MISMATCH=y/# CONFIG_DEBUG_SECTION_MISMATCH is not set/g" .config
 210
 211     # IGBVF won't build with recent gcc on 2.6.38.x
 212     if { vergte "$kversion" "2.6.37" && verlt "$kversion" "2.6.38"; }; then
 213       sed -i "s/CONFIG_IGBVF=y/# CONFIG_IGBVF is not set/g" .config
 214     fi
 215
 216     # Set required options
 217     {
 218         echo "CONFIG_KPROBES=y";
 219         echo "CONFIG_FTRACE=y";
 220         echo "CONFIG_BLK_DEV_IO_TRACE=y";
 221         echo "CONFIG_TRACEPOINTS=y";
 222         echo "CONFIG_KALLSYMS_ALL=y";
 223     } >> .config
 224
 225     # Debug
 226     #cat .config
 227
 228     make "$update_conf_target" CC="$CC"
 229     make -j"$NPROC" CC="$CC"
 230
 231     krelease=$(make -s kernelrelease)
 232
 233     # Save the kernel and modules
 234     mkdir -p "$LINUX_INSTOBJ_DIR/boot"
 235     make INSTALL_MOD_PATH="$LINUX_INSTOBJ_DIR" INSTALL_MOD_STRIP=1 modules_install
 236     make INSTALL_PATH="$LINUX_INSTOBJ_DIR/boot" install
 237     rm -f "$LINUX_INSTOBJ_DIR/lib/modules/${krelease}/source" "$LINUX_INSTOBJ_DIR/lib/modules/${krelease}/build"
 238     ln -s ../../../../sources "$LINUX_INSTOBJ_DIR/lib/modules/${krelease}/source"
 239     ln -s ../../../../sources "$LINUX_INSTOBJ_DIR/lib/modules/${krelease}/source"
 240 }
 241
 242
 243 extract_distro_headers() {
 244
 245     # Enter linux source dir
 246     cd "${LINUX_SRCOBJ_DIR}"
 247
 248
 249     # For RT kernels, copy version file
 250     if [ -s localversion-rt ]; then
 251         cp -a localversion-rt "${LINUX_HDROBJ_DIR}"
 252     fi
 253
 254     # Copy all Makefile related stuff
 255     find . -path './include/*' -prune \
 256         -o -path './scripts/*' -prune -o -type f \
 257         \( -name 'Makefile*' -o -name 'Kconfig*' -o -name 'Kbuild*' -o \
 258             -name '*.sh' -o -name '*.pl' -o -name '*.lds' \) \
 259         -print | cpio -pd --preserve-modification-time "${LINUX_HDROBJ_DIR}"
 260
 261     # Copy base scripts and include dirs
 262     cp -a scripts include "${LINUX_HDROBJ_DIR}"
 263
 264     # Copy arch includes
 265     (find arch -name include -type d -print0 | \
 266         xargs -0 -n1 -i: find : -type f) | \
 267         cpio -pd --preserve-modification-time "${LINUX_HDROBJ_DIR}"
 268
 269     # Copy arch scripts
 270     (find arch -name scripts -type d -print0 | \
 271         xargs -0 -n1 -i: find : -type f) | \
 272         cpio -pd --preserve-modification-time "${LINUX_HDROBJ_DIR}"
 273
 274     # Cleanup scripts
 275     rm -f "${LINUX_HDROBJ_DIR}/scripts/*.o"
 276     rm -f "${LINUX_HDROBJ_DIR}/scripts/*/*.o"
 277
 278     # On powerpc this object is required to link modules
 279     if [ "${karch}" = "powerpc" ]; then
 280         cp -a --parents arch/powerpc/lib/crtsavres.[So] "${LINUX_HDROBJ_DIR}/"
 281     fi
 282
 283     # On arm64 between 4.13 and 1.15 this object is required to build with ftrace support
 284     if [ "${karch}" = "arm64" ]; then
 285         if [ -f "arch/arm64/kernel/ftrace-mod.S" ]; then
 286             cp -a --parents arch/arm64/kernel/ftrace-mod.[So] "${LINUX_HDROBJ_DIR}/"
 287         fi
 288     fi
 289
 290     # Newer kernels need objtool to build modules when CONFIG_STACK_VALIDATION=y
 291     if [ -f tools/objtool/objtool ]; then
 292       cp -a --parents tools/objtool/objtool "${LINUX_HDROBJ_DIR}/"
 293     fi
 294
 295     if [ -f "arch/x86/kernel/macros.s" ]; then
 296       cp -a --parents arch/x86/kernel/macros.s "${LINUX_HDROBJ_DIR}/"
 297     fi
 298
 299     # Copy modules related stuff, if available
 300     if [ -s Module.symvers ]; then
 301         cp Module.symvers "${LINUX_HDROBJ_DIR}"
 302     fi
 303
 304     if [ -s System.map ]; then
 305         cp System.map "${LINUX_HDROBJ_DIR}"
 306     fi
 307
 308     if [ -s Module.markers ]; then
 309         cp Module.markers "${LINUX_HDROBJ_DIR}"
 310     fi
 311
 312     # Copy config file
 313     cp .config "${LINUX_HDROBJ_DIR}"
 314
 315     # Make sure the Makefile and version.h have a matching timestamp so that
 316     # external modules can be built
 317     if [ -s "${LINUX_HDROBJ_DIR}/include/generated/uapi/linux/version.h" ]; then
 318         touch -r "${LINUX_HDROBJ_DIR}/Makefile" "${LINUX_HDROBJ_DIR}/include/generated/uapi/linux/version.h"
 319     elif [ -s "${LINUX_HDROBJ_DIR}/include/linux/version.h" ]; then
 320         touch -r "${LINUX_HDROBJ_DIR}/Makefile" "${LINUX_HDROBJ_DIR}/include/linux/version.h"
 321     else
 322         echo "Missing version.h"
 323         exit 1
 324     fi
 325     touch -r "${LINUX_HDROBJ_DIR}/.config" "${LINUX_HDROBJ_DIR}/include/generated/autoconf.h"
 326
 327     # Copy .config to include/config/auto.conf so "make prepare" is unnecessary.
 328     cp "${LINUX_HDROBJ_DIR}/.config" "${LINUX_HDROBJ_DIR}/include/config/auto.conf"
 329
 330     # Finally clean the object files from the full source tree
 331     make clean
 332
 333     # And regen the modules support files
 334     make modules_prepare CC="$CC"
 335
 336     # On powerpc this object is required to link modules
 337     if [ "${karch}" = "powerpc" ]; then
 338         make arch/powerpc/lib/crtsavres.o CC="$CC"
 339     fi
 340
 341     # On arm64 between 4.13 and 4.15 this object is required to build with ftrace support
 342     if [ "${karch}" = "arm64" ]; then
 343         if [ -f "arch/arm64/kernel/ftrace-mod.S" ]; then
 344             make arch/arm64/kernel/ftrace-mod.o CC="$CC"
 345         fi
 346     fi
 347
 348     # Version specific tasks
 349     case "$ktag" in
 350       Ubuntu*)
 351         # Add Ubuntu ABI number to kernel headers, this is normally done by the packaging code
 352         ABINUM="$(echo "$ktag" | grep -P -o 'Ubuntu-(lts-)?.*-\K\d+(?=\..*)')"
 353         echo "#define UTS_UBUNTU_RELEASE_ABI $ABINUM" >> include/generated/utsrelease.h
 354         echo "#define UTS_UBUNTU_RELEASE_ABI $ABINUM" >> "${LINUX_HDROBJ_DIR}/include/generated/utsrelease.h"
 355         ;;
 356     esac
 357 }
 358
 359
 360 build_modules() {
 361
 362     local kdir="$1"
 363     local outdir="$2"
 364     local kversion
 365
 366     kversion=$(make -C "$LINUX_HDROBJ_DIR" -s kernelversion)
 367
 368     # Enter lttng-modules source dir
 369     cd "${MODULES_GIT_DIR}"
 370
 371     # kernels 3.10 to 3.10.13 and 3.11 to 3.11.2 introduce a deadlock in the
 372     # timekeeping subsystem. We want those build to fail.
 373     if { vergte "$kversion" "3.10" && verlte "$kversion" "3.10.13"; } || \
 374        { vergte "$kversion" "3.11" && verlte "$kversion" "3.11.2"; }; then
 375
 376         set +e
 377
 378         # Build modules
 379         KERNELDIR="${kdir}" make -j"${NPROC}" V=1 CC="$CC"
 380
 381         set -e
 382
 383         # We expect this build to fail, if it doesn't, fail the job.
 384         if [ "$?" -eq 0 ]; then
 385             echo "This build should have failed."
 386             exit 1
 387         fi
 388
 389         # We have to publish at least one file or the build will fail
 390         echo "This kernel is broken, there is a deadlock in the timekeeping subsystem." > "${outdir}/BROKEN.txt.ko"
 391
 392         set -e
 393
 394         KERNELDIR="${kdir}" make clean
 395
 396     else # Regular build
 397
 398         # Build modules against full kernel sources
 399         KERNELDIR="${kdir}" make -j"${NPROC}" V=1 CC="$CC"
 400
 401         # Install modules to build dir
 402         KERNELDIR="${kdir}" make INSTALL_MOD_PATH="${outdir}" modules_install
 403
 404         # Clean build dir
 405         KERNELDIR="${kdir}" make clean
 406     fi
 407 }
 408
 409
 410 ## MAIN ##
 411
 412 # Use all CPU cores
 413 NPROC=$(nproc)
 414
 415 MODULES_GIT_DIR="${WORKSPACE}/src/lttng-modules"
 416 LINUX_GIT_DIR="${WORKSPACE}/src/linux"
 417
 418 LINUX_OBJ_DIR="${WORKSPACE}/linux"
 419 LINUX_SRCOBJ_DIR="${LINUX_OBJ_DIR}/sources"
 420 LINUX_HDROBJ_DIR="${LINUX_OBJ_DIR}/headers"
 421 LINUX_INSTOBJ_DIR="${LINUX_OBJ_DIR}/install"
 422
 423 MODULES_OUTPUT_KSRC_DIR="${WORKSPACE}/build/lttng-modules-ksrc"
 424 MODULES_OUTPUT_KHDR_DIR="${WORKSPACE}/build/lttng-modules-khdr"
 425
 426 LINUX_GIT_REF_REPO_DIR="$HOME/gitcache/linux-stable.git/"
 427
 428 OBJ_STORE_URL="s3://jenkins"
 429
 430 # Older kernel Makefiles do not expect the compiler to default to PIE
 431 KAFLAGS="-fno-pie"
 432 KCFLAGS="-fno-pie -no-pie"
 433 KCPPFLAGS="-fno-pie"
 434 export KAFLAGS KCFLAGS KCPPFLAGS
 435
 436 cd "$WORKSPACE"
 437
 438 # Create build directories
 439 mkdir -p "${LINUX_SRCOBJ_DIR}" "${LINUX_HDROBJ_DIR}" "${LINUX_INSTOBJ_DIR}" "${MODULES_OUTPUT_KSRC_DIR}" "${MODULES_OUTPUT_KHDR_DIR}"
 440
 441 git_clone_modules_sources
 442
 443 # Setup cross compile env if available
 444 if [ "x${cross_arch}" != "x" ]; then
 445
 446     case "$cross_arch" in
 447         "armhf")
 448             karch="arm"
 449             cross_compile="arm-linux-gnueabihf-"
 450             vanilla_config="allyesconfig"
 451             ubuntu_config="armhf-config.flavour.generic"
 452             ;;
 453
 454         "arm64")
 455             karch="arm64"
 456             cross_compile="aarch64-linux-gnu-"
 457             vanilla_config="allyesconfig"
 458             ubuntu_config="arm64-config.flavour.generic"
 459             ;;
 460
 461         "powerpc")
 462             karch="powerpc"
 463             cross_compile="powerpc-linux-gnu-"
 464             vanilla_config="ppc44x_defconfig"
 465             ubuntu_config="powerpc-config.flavour.powerpc-smp"
 466             ;;
 467
 468         "ppc64el")
 469             karch="powerpc"
 470             cross_compile="powerpc64le-linux-gnu-"
 471             vanilla_config="pseries_le_defconfig"
 472             ubuntu_config="ppc64el-config.flavour.generic"
 473             ;;
 474
 475         *)
 476             echo "Unsupported cross arch $cross_arch"
 477             exit 1
 478             ;;
 479     esac
 480
 481     # Export variables used by Kbuild for cross compilation
 482     export ARCH="${karch}"
 483     export CROSS_COMPILE="${cross_compile}"
 484
 485 # Set arch specific values if we are not cross compiling
 486 elif [ "x${arch}" != "x" ]; then
 487
 488     case "$arch" in
 489         "i386")
 490             karch="x86"
 491             vanilla_config="allyesconfig"
 492             ubuntu_config="i386-config.flavour.generic"
 493             ;;
 494
 495         "amd64")
 496             karch="x86"
 497             vanilla_config="allyesconfig"
 498             ubuntu_config="amd64-config.flavour.generic"
 499             ;;
 500
 501         "armhf")
 502             karch="arm"
 503             vanilla_config="allyesconfig"
 504             ubuntu_config="armhf-config.flavour.generic"
 505             ;;
 506
 507         "arm64")
 508             karch="arm64"
 509             vanilla_config="allyesconfig"
 510             ubuntu_config="arm64-config.flavour.generic"
 511             ;;
 512
 513         "powerpc")
 514             karch="powerpc"
 515             vanilla_config="allyesconfig"
 516             ubuntu_config="powerpc-config.flavour.powerpc-smp"
 517             ;;
 518
 519         "ppc64el")
 520             karch="powerpc"
 521             vanilla_config="allyesconfig"
 522             ubuntu_config="ppc64el-config.flavour.generic"
 523             ;;
 524
 525         *)
 526             echo "Unsupported arch $arch"
 527             exit 1
 528             ;;
 529     esac
 530 else
 531     echo "Not arch or cross_arch specified"
 532     exit 1
 533 fi
 534
 535
 536
 537 # First get the kernel build from the object store, or build it, if it's
 538 # not available.
 539
 540 echo "# Setup endpoint
 541 host_base = obj.internal.efficios.com
 542 host_bucket = obj.internal.efficios.com
 543 bucket_location = us-east-1
 544 use_https = True
 545
 546 # Setup access keys
 547 access_key = jenkins
 548 secret_key = echo123456
 549
 550 # Enable S3 v4 signature APIs
 551 signature_v2 = False" > "$WORKSPACE/.s3cfg"
 552
 553 url_hash="$(echo -n "$kgitrepo/$ktag/$arch/$cross_arch" | md5sum | awk '{ print $1 }')"
 554 obj_name="linux.tar.bz2"
 555 obj_url_prefix="$OBJ_STORE_URL/linux-build/$url_hash"
 556 obj_url="$obj_url_prefix/$obj_name"
 557
 558 set +e
 559 s3cmd -c "$WORKSPACE/.s3cfg" get "$obj_url"
 560 ret=$?
 561 set -e
 562
 563 case "$ret" in
 564     "0")
 565       extract_archive_obj
 566       ;;
 567
 568     "12")
 569       echo "File not found"
 570
 571       # Build all the things and upload
 572       # then finish the module build...
 573
 574       git_clone_linux_sources
 575       git_export_linux_sources
 576
 577       select_compiler
 578
 579       ## PREPARE FULL LINUX SOURCE TREE
 580       build_linux_kernel
 581
 582       ## EXTRACT DISTRO STYLE KERNEL HEADERS / DEVEL
 583       extract_distro_headers
 584
 585       tar_archive_obj
 586
 587       upload_archive_obj
 588
 589       ;;
 590
 591     *)
 592       echo "Unknown error? Abort"
 593       exit 1
 594       ;;
 595 esac
 596
 597 select_compiler
 598
 599 ## BUILD modules
 600 # Either we downloaded a pre-build kernel or we built it and uploaded
 601 # the archive for future builds.
 602
 603 cd "$WORKSPACE"
 604
 605 # Build modules against full kernel sources
 606 build_modules "${LINUX_SRCOBJ_DIR}" "${MODULES_OUTPUT_KSRC_DIR}"
 607
 608 # Build modules against kernel headers
 609 build_modules "${LINUX_HDROBJ_DIR}" "${MODULES_OUTPUT_KHDR_DIR}"
 610
 611 # Make sure some modules were actually built
 612 tree "${MODULES_OUTPUT_KSRC_DIR}"
 613 if [ "x$(find "${MODULES_OUTPUT_KSRC_DIR}" -name '*.ko*' -printf yes -quit)" != "xyes" ]; then
 614   echo "No modules built!"
 615   exit 1
 616 fi
 617
 618 tree "${MODULES_OUTPUT_KHDR_DIR}"
 619 if [ "x$(find "${MODULES_OUTPUT_KHDR_DIR}" -name '*.ko*' -printf yes -quit)" != "xyes" ]; then
 620   echo "No modules built!"
 621   exit 1
 622 fi
 623
 624 # EOF