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