llvm-capstone/bolt/CMakeLists.txt

include(ExternalProject)

set(BOLT_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR})
set(BOLT_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR})
set(CMAKE_CXX_STANDARD 14)

if (NOT CMAKE_HOST_SYSTEM_NAME MATCHES Linux)
  message(WARNING "Not building BOLT on unsupported platform")
else()
  set(BOLT_ENABLE_RUNTIME OFF)
  if (CMAKE_HOST_SYSTEM_PROCESSOR MATCHES "x86_64")
    set(BOLT_ENABLE_RUNTIME ON)
  endif()

  set(BOLT_INCLUDE_TESTS OFF)
  if (LLVM_INCLUDE_TESTS)
    string(FIND "${LLVM_ENABLE_PROJECTS}" "clang" POSITION)
    if (NOT ${POSITION} EQUAL -1)
      string(FIND "${LLVM_ENABLE_PROJECTS}" "lld" POSITION)
      if (NOT ${POSITION} EQUAL -1)
        set(BOLT_INCLUDE_TESTS ON)
      else()
        message(WARNING "Not including BOLT tests since lld is disabled")
      endif()
    else()
      message(WARNING "Not including BOLT tests since clang is disabled")
    endif()
  endif()

  if (BOLT_ENABLE_RUNTIME)
    message(STATUS "Building BOLT runtime libraries for X86")
    ExternalProject_Add(bolt_rt
      SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/runtime"
      STAMP_DIR ${CMAKE_CURRENT_BINARY_DIR}/bolt_rt-stamps
      BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR}/bolt_rt-bins
      CMAKE_ARGS -DCMAKE_C_COMPILER=${CMAKE_C_COMPILER}
                 -DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER}
                 -DCMAKE_BUILD_TYPE=Release
                 -DCMAKE_MAKE_PROGRAM=${CMAKE_MAKE_PROGRAM}
                 -DCMAKE_INSTALL_PREFIX=${LLVM_BINARY_DIR}
      BUILD_ALWAYS True
      )
    install(CODE "execute_process\(COMMAND \${CMAKE_COMMAND} -DCMAKE_INSTALL_PREFIX=\${CMAKE_INSTALL_PREFIX} -P ${CMAKE_CURRENT_BINARY_DIR}/bolt_rt-bins/cmake_install.cmake \)"
      COMPONENT bolt)
    add_llvm_install_targets(install-bolt_rt
      DEPENDS bolt_rt bolt
      COMPONENT bolt)
  endif()

  # Get the current git revision for BOLT.
  find_program(git_executable NAMES git git.exe git.cmd)
  if (git_executable)
    execute_process(COMMAND ${git_executable} rev-parse HEAD
      WORKING_DIRECTORY ${LLVM_MAIN_SRC_DIR}
      TIMEOUT 5
      RESULT_VARIABLE git_result
      OUTPUT_VARIABLE git_output)
    if( git_result EQUAL 0 )
      string(STRIP "${git_output}" git_ref_id)
      set(BOLT_REVISION "${git_ref_id}")
    endif()
  endif()

  # If we can't find a revision, set it to "<unknown>".
  if (NOT BOLT_REVISION)
    set(BOLT_REVISION "<unknown>")
  endif()

  configure_file(
    ${CMAKE_CURRENT_SOURCE_DIR}/include/bolt/Utils/BoltRevision.inc.in
    ${CMAKE_CURRENT_BINARY_DIR}/include/bolt/Utils/BoltRevision.inc)

  include_directories(
    ${CMAKE_CURRENT_SOURCE_DIR}/include
    ${CMAKE_CURRENT_BINARY_DIR}/include
    )

  add_subdirectory(lib)
  add_subdirectory(tools)

  if (BOLT_INCLUDE_TESTS)
    add_subdirectory(test)
  endif()
endif()