build.sh

   1 #!/usr/bin/env bash
   2
   3 # resolve python-version to use
   4 if [ "$PYTHON" == "" ] ; then
   5     if which python >/dev/null 2>&1
   6     then
   7        PYTHON=python
   8     elif which python2 >/dev/null 2>&1
   9     then
  10        PYTHON=python2
  11     elif which python2.7 >/dev/null 2>&1
  12     then
  13        PYTHON=python2.7
  14     else
  15        echo "Unable to locate build-dependency python2.x!" 1>&2
  16        exit 1
  17     fi
  18 fi
  19
  20 # validate python-dependency
  21 # useful in case of explicitly set option.
  22 if ! which $PYTHON > /dev/null 2>&1
  23 then
  24    echo "Unable to locate build-dependency python2.x ($PYTHON)!" 1>&2
  25    exit 1
  26 fi
  27
  28 usage()
  29 {
  30     echo "Usage: $0 [BuildArch] [BuildType] [verbose] [coverage] [cross] [clangx.y] [ninja] [configureonly] [skipconfigure] [skipnative] [skipmscorlib] [skiptests] [cmakeargs] [bindir]"
  31     echo "BuildArch can be: x64, x86, arm, arm-softfp, arm64"
  32     echo "BuildType can be: debug, checked, release"
  33     echo "coverage - optional argument to enable code coverage build (currently supported only for Linux and OSX)."
  34     echo "ninja - target ninja instead of GNU make"
  35     echo "clangx.y - optional argument to build using clang version x.y."
  36     echo "cross - optional argument to signify cross compilation,"
  37     echo "      - will use ROOTFS_DIR environment variable if set."
  38     echo "configureonly - do not perform any builds; just configure the build."
  39     echo "skipconfigure - skip build configuration."
  40     echo "skipnative - do not build native components."
  41     echo "skipmscorlib - do not build mscorlib.dll."
  42     echo "skiptests - skip the tests in the 'tests' subdirectory."
  43     echo "skipnuget - skip building nuget packages."
  44     echo "verbose - optional argument to enable verbose build output."
  45     echo "-skiprestore: skip restoring packages ^(default: packages are restored during build^)."
  46         echo "-disableoss: Disable Open Source Signing for System.Private.CoreLib."
  47         echo "-sequential: force a non-parallel build ^(default is to build in parallel"
  48         echo "   using all processors^)."
  49         echo "-officialbuildid=^<ID^>: specify the official build ID to be used by this build."
  50         echo "-Rebuild: passes /t:rebuild to the build projects."
  51     echo "skipgenerateversion - disable version generation even if MSBuild is supported."
  52     echo "cmakeargs - user-settable additional arguments passed to CMake."
  53     echo "bindir - output directory (defaults to $__ProjectRoot/bin)"
  54
  55     exit 1
  56 }
  57
  58 initDistroRid()
  59 {
  60     if [ "$__BuildOS" == "Linux" ]; then
  61         if [ ! -e /etc/os-release ]; then
  62             echo "WARNING: Can not determine runtime id for current distro."
  63             export __DistroRid=""
  64         else
  65             source /etc/os-release
  66             export __DistroRid="$ID.$VERSION_ID-$__HostArch"
  67         fi
  68     fi
  69 }
  70
  71 setup_dirs()
  72 {
  73     echo Setting up directories for build
  74
  75     mkdir -p "$__RootBinDir"
  76     mkdir -p "$__BinDir"
  77     mkdir -p "$__LogsDir"
  78     mkdir -p "$__IntermediatesDir"
  79 }
  80
  81 # Check the system to ensure the right prereqs are in place
  82
  83 check_prereqs()
  84 {
  85     echo "Checking prerequisites..."
  86
  87     # Check presence of CMake on the path
  88     hash cmake 2>/dev/null || { echo >&2 "Please install cmake before running this script"; exit 1; }
  89
  90     # Check for clang
  91     hash clang-$__ClangMajorVersion.$__ClangMinorVersion 2>/dev/null ||  hash clang$__ClangMajorVersion$__ClangMinorVersion 2>/dev/null ||  hash clang 2>/dev/null || { echo >&2 "Please install clang-$__ClangMajorVersion.$__ClangMinorVersion before running this script"; exit 1; }
  92
  93 }
  94
  95 build_coreclr()
  96 {
  97
  98     if [ $__SkipCoreCLR == 1 ]; then
  99         echo "Skipping CoreCLR build."
 100         return
 101     fi
 102
 103 # Event Logging Infrastructure
 104    __GeneratedIntermediate="$__IntermediatesDir/Generated"
 105    __GeneratedIntermediateEventProvider="$__GeneratedIntermediate/eventprovider_new"
 106     if [[ -d "$__GeneratedIntermediateEventProvider" ]]; then
 107         rm -rf  "$__GeneratedIntermediateEventProvider"
 108     fi
 109
 110     if [[ ! -d "$__GeneratedIntermediate/eventprovider" ]]; then
 111         mkdir -p "$__GeneratedIntermediate/eventprovider"
 112     fi
 113
 114     mkdir -p "$__GeneratedIntermediateEventProvider"
 115     if [[ $__SkipCoreCLR == 0 || $__ConfigureOnly == 1 ]]; then
 116         echo "Laying out dynamically generated files consumed by the build system "
 117         echo "Laying out dynamically generated Event Logging Test files"
 118         $PYTHON -B -Wall -Werror "$__ProjectRoot/src/scripts/genXplatEventing.py" --man "$__ProjectRoot/src/vm/ClrEtwAll.man" --exc "$__ProjectRoot/src/vm/ClrEtwAllMeta.lst" --testdir "$__GeneratedIntermediateEventProvider/tests"
 119
 120         if  [[ $? != 0 ]]; then
 121             exit
 122         fi
 123
 124         #determine the logging system
 125         case $__BuildOS in
 126             Linux)
 127                 echo "Laying out dynamically generated Event Logging Implementation of Lttng"
 128                 $PYTHON -B -Wall -Werror "$__ProjectRoot/src/scripts/genXplatLttng.py" --man "$__ProjectRoot/src/vm/ClrEtwAll.man" --intermediate "$__GeneratedIntermediateEventProvider"
 129                 if  [[ $? != 0 ]]; then
 130                     exit
 131                 fi
 132                 ;;
 133             *)
 134                 ;;
 135         esac
 136     fi
 137
 138     echo "Cleaning the temp folder of dynamically generated Event Logging files"
 139     $PYTHON -B -Wall -Werror -c "import sys;sys.path.insert(0,\"$__ProjectRoot/src/scripts\"); from Utilities import *;UpdateDirectory(\"$__GeneratedIntermediate/eventprovider\",\"$__GeneratedIntermediateEventProvider\")"
 140     if  [[ $? != 0 ]]; then
 141         exit
 142     fi
 143
 144     rm -rf "$__GeneratedIntermediateEventProvider"
 145
 146     # All set to commence the build
 147
 148     echo "Commencing build of native components for $__BuildOS.$__BuildArch.$__BuildType in $__IntermediatesDir"
 149
 150     generator=""
 151     buildFile="Makefile"
 152     buildTool="make"
 153     if [ $__UseNinja == 1 ]; then
 154         generator="ninja"
 155         buildFile="build.ninja"
 156         buildTool="ninja"
 157     fi
 158
 159     if [ $__SkipConfigure == 0 ]; then
 160         # if msbuild is not supported, then set __SkipGenerateVersion to 1
 161         if [ $__isMSBuildOnNETCoreSupported == 0 ]; then __SkipGenerateVersion=1; fi
 162         # Drop version.c file
 163         __versionSourceFile=$__IntermediatesDir/version.cpp
 164         if [ $__SkipGenerateVersion == 0 ]; then
 165             "$__ProjectRoot/run.sh" build -Project=$__ProjectDir/build.proj -generateHeaderUnix -NativeVersionSourceFile=$__versionSourceFile $__RunArgs $__UnprocessedBuildArgs
 166         else
 167             __versionSourceLine="static char sccsid[] __attribute__((used)) = \"@(#)No version information produced\";"
 168             echo $__versionSourceLine > $__versionSourceFile
 169         fi
 170
 171                 pushd "$__IntermediatesDir"
 172         # Regenerate the CMake solution
 173         echo "Invoking \"$__ProjectRoot/src/pal/tools/gen-buildsys-clang.sh\" \"$__ProjectRoot\" $__ClangMajorVersion $__ClangMinorVersion $__BuildArch $__BuildType $__CodeCoverage $__IncludeTests $generator $__cmakeargs"
 174         "$__ProjectRoot/src/pal/tools/gen-buildsys-clang.sh" "$__ProjectRoot" $__ClangMajorVersion $__ClangMinorVersion $__BuildArch $__BuildType $__CodeCoverage $__IncludeTests $generator "$__cmakeargs"
 175         popd
 176     fi
 177
 178     # Check that the makefiles were created.
 179     pushd "$__IntermediatesDir"
 180
 181     if [ ! -f "$__IntermediatesDir/$buildFile" ]; then
 182         echo "Failed to generate native component build project!"
 183         exit 1
 184     fi
 185
 186     # Get the number of processors available to the scheduler
 187     # Other techniques such as `nproc` only get the number of
 188     # processors available to a single process.
 189     if [ `uname` = "FreeBSD" ]; then
 190         NumProc=`sysctl hw.ncpu | awk '{ print $2+1 }'`
 191     elif [ `uname` = "NetBSD" ]; then
 192         NumProc=$(($(getconf NPROCESSORS_ONLN)+1))
 193     else
 194         NumProc=$(($(getconf _NPROCESSORS_ONLN)+1))
 195     fi
 196
 197     # Build CoreCLR
 198
 199     echo "Executing $buildTool install -j $NumProc"
 200
 201     $buildTool install -j $NumProc
 202     if [ $? != 0 ]; then
 203         echo "Failed to build coreclr components."
 204         exit 1
 205     fi
 206         popd
 207 }
 208
 209 isMSBuildOnNETCoreSupported()
 210 {
 211     # This needs to be updated alongwith corresponding changes to netci.groovy.
 212     __isMSBuildOnNETCoreSupported=0
 213
 214     if [ "$__HostArch" == "x64" ]; then
 215         if [ "$__HostOS" == "Linux" ]; then
 216             case "$__DistroRid" in
 217                 "centos.7-x64")
 218                     __isMSBuildOnNETCoreSupported=1
 219                     ;;
 220                 "debian.8-x64")
 221                     __isMSBuildOnNETCoreSupported=1
 222                     ;;
 223                 "fedora.23-x64")
 224                     __isMSBuildOnNETCoreSupported=1
 225                     ;;
 226                 "opensuse.13.2-x64")
 227                     __isMSBuildOnNETCoreSupported=1
 228                     ;;
 229                 "opensuse.42.1-x64")
 230                     __isMSBuildOnNETCoreSupported=1
 231                     ;;
 232                 "rhel.7.2-x64")
 233                     __isMSBuildOnNETCoreSupported=1
 234                     ;;
 235                 "ubuntu.14.04-x64")
 236                     __isMSBuildOnNETCoreSupported=1
 237                     ;;
 238                 "ubuntu.16.04-x64")
 239                     __isMSBuildOnNETCoreSupported=1
 240                     ;;
 241                 *)
 242             esac
 243         elif [ "$__HostOS" == "OSX" ]; then
 244             __isMSBuildOnNETCoreSupported=1
 245         fi
 246     fi
 247 }
 248
 249 build_CoreLib_ni()
 250 {
 251     if [ $__SkipCoreCLR == 0 -a -e $__BinDir/crossgen ]; then
 252         echo "Generating native image for System.Private.CoreLib."
 253         $__BinDir/crossgen $__BinDir/System.Private.CoreLib.dll
 254         if [ $? -ne 0 ]; then
 255             echo "Failed to generate native image for System.Private.CoreLib."
 256             exit 1
 257         fi
 258
 259         echo "Generating native image for MScorlib Facade."
 260         $__BinDir/crossgen $__BinDir/mscorlib.dll
 261         if [ $? -ne 0 ]; then
 262             echo "Failed to generate native image for mscorlib facade."
 263             exit 1
 264         fi
 265
 266         if [ "$__BuildOS" == "Linux" ]; then
 267             echo "Generating symbol file for System.Private.CoreLib."
 268             $__BinDir/crossgen /CreatePerfMap $__BinDir $__BinDir/System.Private.CoreLib.ni.dll
 269             if [ $? -ne 0 ]; then
 270                 echo "Failed to generate symbol file for System.Private.CoreLib."
 271                 exit 1
 272             fi
 273         fi
 274     fi
 275 }
 276
 277 build_CoreLib()
 278 {
 279
 280     if [ $__isMSBuildOnNETCoreSupported == 0 ]; then
 281         echo "System.Private.CoreLib.dll build unsupported."
 282         return
 283     fi
 284
 285     if [ $__SkipMSCorLib == 1 ]; then
 286        echo "Skipping building System.Private.CoreLib."
 287        return
 288     fi
 289
 290     echo "Commencing build of managed components for $__BuildOS.$__BuildArch.$__BuildType"
 291
 292     # Invoke MSBuild
 293     $__ProjectRoot/run.sh build -Project=$__ProjectDir/build.proj -MsBuildLog="/flp:Verbosity=normal;LogFile=$__LogsDir/System.Private.CoreLib_$__BuildOS__$__BuildArch__$__BuildType.log" -BuildTarget -__IntermediatesDir=$__IntermediatesDir -__RootBinDir=$__RootBinDir -BuildNugetPackage=false -UseSharedCompilation=false $__RunArgs $__UnprocessedBuildArgs
 294
 295     if [ $? -ne 0 ]; then
 296         echo "Failed to build managed components."
 297         exit 1
 298     fi
 299
 300     # The cross build generates a crossgen with the target architecture.
 301     if [ $__CrossBuild != 1 ]; then
 302        # The architecture of host pc must be same architecture with target.
 303        if [[ ( "$__HostArch" == "$__BuildArch" ) ]]; then
 304            build_CoreLib_ni
 305        elif [[ ( "$__HostArch" == "x64" ) && ( "$__BuildArch" == "x86" ) ]]; then
 306            build_CoreLib_ni
 307        elif [[ ( "$__HostArch" == "arm64" ) && ( "$__BuildArch" == "arm" ) ]]; then
 308            build_CoreLib_ni
 309        else
 310            exit 1
 311        fi
 312     fi
 313 }
 314
 315 generate_NugetPackages()
 316 {
 317     # We can only generate nuget package if we also support building mscorlib as part of this build.
 318     if [ $__isMSBuildOnNETCoreSupported == 0 ]; then
 319         echo "Nuget package generation unsupported."
 320         return
 321     fi
 322
 323     # Since we can build mscorlib for this OS, did we build the native components as well?
 324     if [ $__SkipCoreCLR == 1 ]; then
 325         echo "Unable to generate nuget packages since native components were not built."
 326         return
 327     fi
 328
 329     echo "Generating nuget packages for "$__BuildOS
 330
 331     # Build the packages
 332     $__ProjectRoot/run.sh build -Project=$__SourceDir/.nuget/packages.builds -MsBuildLog="/flp:Verbosity=normal;LogFile=$__LogsDir/Nuget_$__BuildOS__$__BuildArch__$__BuildType.log" -BuildTarget -__IntermediatesDir=$__IntermediatesDir -__RootBinDir=$__RootBinDir -BuildNugetPackage=false -UseSharedCompilation=false $__RunArgs $__UnprocessedBuildArgs
 333
 334     if [ $? -ne 0 ]; then
 335         echo "Failed to generate Nuget packages."
 336         exit 1
 337     fi
 338 }
 339
 340 echo "Commencing CoreCLR Repo build"
 341
 342 # Argument types supported by this script:
 343 #
 344 # Build architecture - valid values are: x64, ARM.
 345 # Build Type         - valid values are: Debug, Checked, Release
 346 #
 347 # Set the default arguments for build
 348
 349 # Obtain the location of the bash script to figure out where the root of the repo is.
 350 __ProjectRoot="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 351
 352 # Use uname to determine what the CPU is.
 353 CPUName=$(uname -p)
 354 # Some Linux platforms report unknown for platform, but the arch for machine.
 355 if [ "$CPUName" == "unknown" ]; then
 356     CPUName=$(uname -m)
 357 fi
 358
 359 case $CPUName in
 360     i686)
 361         echo "Unsupported CPU $CPUName detected, build might not succeed!"
 362         __BuildArch=x86
 363         __HostArch=x86
 364         ;;
 365
 366     x86_64)
 367         __BuildArch=x64
 368         __HostArch=x64
 369         ;;
 370
 371     armv7l)
 372         echo "Unsupported CPU $CPUName detected, build might not succeed!"
 373         __BuildArch=arm
 374         __HostArch=arm
 375         ;;
 376
 377     aarch64)
 378         echo "Unsupported CPU $CPUName detected, build might not succeed!"
 379         __BuildArch=arm64
 380         __HostArch=arm64
 381         ;;
 382
 383     *)
 384         echo "Unknown CPU $CPUName detected, configuring as if for x64"
 385         __BuildArch=x64
 386         __HostArch=x64
 387         ;;
 388 esac
 389
 390 # Use uname to determine what the OS is.
 391 OSName=$(uname -s)
 392 case $OSName in
 393     Linux)
 394         __BuildOS=Linux
 395         __HostOS=Linux
 396         ;;
 397
 398     Darwin)
 399         __BuildOS=OSX
 400         __HostOS=OSX
 401         ;;
 402
 403     FreeBSD)
 404         __BuildOS=FreeBSD
 405         __HostOS=FreeBSD
 406         ;;
 407
 408     OpenBSD)
 409         __BuildOS=OpenBSD
 410         __HostOS=OpenBSD
 411         ;;
 412
 413     NetBSD)
 414         __BuildOS=NetBSD
 415         __HostOS=NetBSD
 416         ;;
 417
 418     SunOS)
 419         __BuildOS=SunOS
 420         __HostOS=SunOS
 421         ;;
 422
 423     *)
 424         echo "Unsupported OS $OSName detected, configuring as if for Linux"
 425         __BuildOS=Linux
 426         __HostOS=Linux
 427         ;;
 428 esac
 429
 430 __BuildType=Debug
 431 __CodeCoverage=
 432 __IncludeTests=Include_Tests
 433
 434 # Set the various build properties here so that CMake and MSBuild can pick them up
 435 __ProjectDir="$__ProjectRoot"
 436 __SourceDir="$__ProjectDir/src"
 437 __PackagesDir="$__ProjectDir/packages"
 438 __RootBinDir="$__ProjectDir/bin"
 439 __UnprocessedBuildArgs=
 440 __RunArgs=
 441 __MSBCleanBuildArgs=
 442 __UseNinja=0
 443 __VerboseBuild=0
 444 __ConfigureOnly=0
 445 __SkipConfigure=0
 446 __SkipRestore=""
 447 __SkipNuget=0
 448 __SkipCoreCLR=0
 449 __SkipMSCorLib=0
 450 __CrossBuild=0
 451 __ClangMajorVersion=0
 452 __ClangMinorVersion=0
 453 __NuGetPath="$__PackagesDir/NuGet.exe"
 454 __DistroRid=""
 455 __cmakeargs=""
 456 __SkipGenerateVersion=0
 457
 458 while :; do
 459     if [ $# -le 0 ]; then
 460         break
 461     fi
 462
 463     lowerI="$(echo $1 | awk '{print tolower($0)}')"
 464     case $lowerI in
 465         -\?|-h|--help)
 466             usage
 467             exit 1
 468             ;;
 469
 470         x86)
 471             __BuildArch=x86
 472             ;;
 473
 474         x64)
 475             __BuildArch=x64
 476             ;;
 477
 478         arm)
 479             __BuildArch=arm
 480             ;;
 481
 482         arm-softfp)
 483             __BuildArch=arm-softfp
 484             ;;
 485
 486         arm64)
 487             __BuildArch=arm64
 488             ;;
 489
 490         debug)
 491             __BuildType=Debug
 492             ;;
 493
 494         checked)
 495             __BuildType=Checked
 496             ;;
 497
 498         release)
 499             __BuildType=Release
 500             ;;
 501
 502         coverage)
 503             __CodeCoverage=Coverage
 504             ;;
 505
 506         cross)
 507             __CrossBuild=1
 508             ;;
 509
 510                 verbose)
 511         __VerboseBuild=1
 512         ;;
 513
 514         clang3.5)
 515             __ClangMajorVersion=3
 516             __ClangMinorVersion=5
 517             ;;
 518
 519         clang3.6)
 520             __ClangMajorVersion=3
 521             __ClangMinorVersion=6
 522             ;;
 523
 524         clang3.7)
 525             __ClangMajorVersion=3
 526             __ClangMinorVersion=7
 527             ;;
 528
 529         clang3.8)
 530             __ClangMajorVersion=3
 531             __ClangMinorVersion=8
 532             ;;
 533
 534         ninja)
 535             __UseNinja=1
 536             ;;
 537
 538         configureonly)
 539             __ConfigureOnly=1
 540             __SkipCoreCLR=1
 541             __SkipMSCorLib=1
 542             __IncludeTests=
 543             ;;
 544
 545         skipconfigure)
 546             __SkipConfigure=1
 547             ;;
 548
 549         skipnative)
 550             # Use "skipnative" to use the same option name as build.cmd.
 551             __SkipCoreCLR=1
 552             ;;
 553
 554         skipcoreclr)
 555             # Accept "skipcoreclr" for backwards-compatibility.
 556             __SkipCoreCLR=1
 557             ;;
 558
 559         skipmscorlib)
 560             __SkipMSCorLib=1
 561             ;;
 562
 563         skipgenerateversion)
 564             __SkipGenerateVersion=1
 565             ;;
 566
 567         includetests)
 568             ;;
 569
 570         skiptests)
 571             __IncludeTests=
 572             ;;
 573
 574         skipnuget)
 575             __SkipNuget=1
 576             ;;
 577
 578         cmakeargs)
 579             if [ -n "$2" ]; then
 580                 __cmakeargs="$2"
 581                 shift
 582             else
 583                 echo "ERROR: 'cmakeargs' requires a non-empty option argument"
 584                 exit 1
 585             fi
 586             ;;
 587
 588         bindir)
 589             if [ -n "$2" ]; then
 590                 __RootBinDir="$2"
 591                 if [ ! -d $__RootBinDir ]; then
 592                     mkdir $__RootBinDir
 593                 fi
 594                 __RootBinParent=$(dirname $__RootBinDir)
 595                 __RootBinName=${__RootBinDir##*/}
 596                 __RootBinDir="$(cd $__RootBinParent &>/dev/null && printf %s/%s $PWD $__RootBinName)"
 597                 shift
 598             else
 599                 echo "ERROR: 'bindir' requires a non-empty option argument"
 600                 exit 1
 601             fi
 602             ;;
 603
 604         *)
 605             __UnprocessedBuildArgs="$__UnprocessedBuildArgs $1"
 606             ;;
 607     esac
 608
 609     shift
 610 done
 611
 612 __RunArgs="-BuildArch=$__BuildArch -BuildType=$__BuildType -BuildOS=$__BuildOS"
 613
 614 # Configure environment if we are doing a verbose build
 615 if [ $__VerboseBuild == 1 ]; then
 616     export VERBOSE=1
 617         __RunArgs="$__RunArgs -verbose"
 618 fi
 619
 620 # Set default clang version
 621 if [[ $__ClangMajorVersion == 0 && $__ClangMinorVersion == 0 ]]; then
 622     if [ $__CrossBuild == 1 ]; then
 623         __ClangMajorVersion=3
 624         __ClangMinorVersion=6
 625     else
 626         __ClangMajorVersion=3
 627         __ClangMinorVersion=5
 628     fi
 629 fi
 630
 631 # Set dependent variables
 632 __LogsDir="$__RootBinDir/Logs"
 633
 634 # init the distro name
 635 initDistroRid
 636
 637 # Set the remaining variables based upon the determined build configuration
 638 __BinDir="$__RootBinDir/Product/$__BuildOS.$__BuildArch.$__BuildType"
 639 __PackagesBinDir="$__BinDir/.nuget"
 640 __ToolsDir="$__RootBinDir/tools"
 641 __TestWorkingDir="$__RootBinDir/tests/$__BuildOS.$__BuildArch.$__BuildType"
 642 export __IntermediatesDir="$__RootBinDir/obj/$__BuildOS.$__BuildArch.$__BuildType"
 643 __TestIntermediatesDir="$__RootBinDir/tests/obj/$__BuildOS.$__BuildArch.$__BuildType"
 644 __isMSBuildOnNETCoreSupported=0
 645
 646 # Init if MSBuild for .NET Core is supported for this platform
 647 isMSBuildOnNETCoreSupported
 648
 649 # CI_SPECIFIC - On CI machines, $HOME may not be set. In such a case, create a subfolder and set the variable to set.
 650 # This is needed by CLI to function.
 651 if [ -z "$HOME" ]; then
 652     if [ ! -d "$__ProjectDir/temp_home" ]; then
 653         mkdir temp_home
 654     fi
 655     export HOME=$__ProjectDir/temp_home
 656     echo "HOME not defined; setting it to $HOME"
 657 fi
 658
 659 # Specify path to be set for CMAKE_INSTALL_PREFIX.
 660 # This is where all built CoreClr libraries will copied to.
 661 export __CMakeBinDir="$__BinDir"
 662
 663 # Configure environment if we are doing a cross compile.
 664 if [ $__CrossBuild == 1 ]; then
 665     export CROSSCOMPILE=1
 666     if ! [[ -n "$ROOTFS_DIR" ]]; then
 667         export ROOTFS_DIR="$__ProjectRoot/cross/rootfs/$__BuildArch"
 668     fi
 669 fi
 670
 671 # Make the directories necessary for build if they don't exist
 672
 673 setup_dirs
 674
 675 # Check prereqs.
 676
 677 check_prereqs
 678
 679 # Build the coreclr (native) components.
 680
 681 build_coreclr
 682
 683 # Build System.Private.CoreLib.
 684
 685 build_CoreLib
 686
 687 # Generate nuget packages
 688 if [ $__SkipNuget != 1 ]; then
 689     generate_NugetPackages
 690 fi
 691
 692
 693 # Build complete
 694
 695 echo "Repo successfully built."
 696 echo "Product binaries are available at $__BinDir"
 697 exit 0