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Building library with CMake

CDS suports both in-source and out-of-source cmake build types. Now project uses:

  • CMake: general cross-platform building
  • CTest: all unit tests can be run in a standard way by ctest command
  • CPack: for making rpm/deb/nsys etc. packages

Compiling and testing

Building out-of-source in "RELEASE" mode ("DEBUG" is default)

  • Wherever create empty directory for building, for instance libcds-debug
  • Prepare: cmake -DCMAKE_BUILD_TYPE=RELEASE <path to the project's root directory with CMakeLists.txt>
  • Compile: make -j4
  • As a result you'll see shared and static cds libraries in the build directory

Warning: We strongly recommend not to use static cds library. Static library is not tested and not maintained. You can use it on own risk.

After using command cmake -L <path to the project's root directory with CMakeLists.txt> one can see some additional variables, that can activate additional features:

  • LIBCDS_WITH_TESTS:BOOL=OFF: if you want to build library with unit testing support use -DLIBCDS_WITH_TESTS=ON on prepare step. Be careful with this flag, because compile time will dramatically increase
  • LIBCDS_WITH_TESTS_COVERAGE:BOOL=OFF: Analyze test coverage using gcov (only for gcc)
  • LIBCDS_WITH_BOOST_ATOMIC:BOOL=OFF: Use boost atomics (only for boost >= 1.54)
  • LIBCDS_WITH_ASAN:BOOL=OFF: compile libcds with AddressSanitizer instrumentation
  • LIBCDS_WITH_TSAN:BOOL=OFF: compile libcds with ThreadSanitizer instrumentation

Additional gtest hints (for unit and stress tests only):

  • GTEST_INCLUDE_DIRS=path: gives full path to gtest include dir.
  • GTEST_LIBRARY=path: gives full path to libgtest.a.

Packaging

In order to package library CPack is used, command cpack -G should create correspondent packages for particular operating system. Now the project supports building the following package types:

  • RPM: redhat-based linux distribs
  • DEB: debian-based linux distribs
  • TGZ: simple "tgz" archive with library and headers
  • NSYS: windows installer package (NSYS should be installed)

"Live" building and packaging example

  • git clone https://github.com/khizmax/libcds.git
  • mkdir libcds-release
  • cd libcds-release
  • cmake -DLIBCDS_WITH_TESTS=ON -DCMAKE_BUILD_TYPE=RELEASE ../libcds
    -- The C compiler identification is GNU 4.8.3
    -- The CXX compiler identification is GNU 4.8.3
    ...
    -- Found Threads: TRUE
    -- Boost version: 1.54.0
    -- Found the following Boost libraries:
    --   system
    --   thread
    Build type -- RELEASE
    -- Configuring done
    -- Generating done
    -- Build files have been written to: <...>/libcds-release
  • make -j4
    Scanning dependencies of target cds
    Scanning dependencies of target test-common
    Scanning dependencies of target cds-s
    Scanning dependencies of target test-hdr-offsetof
    [  1%] Building CXX object CMakeFiles/cds-s.dir/src/hp_gc.cpp.o
    ...
    [100%] Built target test-hdr
  • ctest
    Test project /home/kel/projects_cds/libcds-debug
        Start 1: test-hdr
    1/7 Test #1: test-hdr .........................   Passed  1352.24 sec
        Start 2: cdsu-misc
    2/7 Test #2: cdsu-misc ........................   Passed    0.00 sec
        Start 3: cdsu-map
    ...
  • cpack -G RPM
    CPack: Create package using RPM
    CPack: Install projects
    CPack: - Run preinstall target for: cds
    CPack: - Install project: cds
    CPack: -   Install component: devel
    CPack: -   Install component: lib
    CPack: Create package
    CPackRPM:Debug: Adding /usr/local to builtin omit list.
    CPackRPM: Will use GENERATED spec file: /home/kel/projects_cds/libcds-debug/_CPack_Packages/Linux/RPM/SPECS/cds-devel.spec
    CPackRPM: Will use GENERATED spec file: /home/kel/projects_cds/libcds-debug/_CPack_Packages/Linux/RPM/SPECS/cds-lib.spec
    CPack: - package: /home/kel/projects_cds/libcds-debug/cds-2.1.0-1-devel.rpm generated.
    CPack: - package: /home/kel/projects_cds/libcds-debug/cds-2.1.0-1-lib.rpm generated.

Future development

  • CDash: use CI system