set(swift_runtime_compile_flags ${SWIFT_RUNTIME_CORE_CXX_FLAGS})
set(swift_runtime_linker_flags ${SWIFT_RUNTIME_CORE_LINK_FLAGS})

if(SWIFT_RUNTIME_CLOBBER_FREED_OBJECTS)
  list(APPEND swift_runtime_compile_flags
      "-DSWIFT_RUNTIME_CLOBBER_FREED_OBJECTS=1")
endif()

if(SWIFT_RUNTIME_CRASH_REPORTER_CLIENT)
  list(APPEND swift_runtime_compile_flags
      "-DSWIFT_HAVE_CRASHREPORTERCLIENT=1")
endif()

set(swift_runtime_leaks_sources)
if(SWIFT_RUNTIME_ENABLE_LEAK_CHECKER)
  list(APPEND swift_runtime_compile_flags
       "-DSWIFT_RUNTIME_ENABLE_LEAK_CHECKER=1")
  set(swift_runtime_leaks_sources Leaks.mm)
endif()

set(swift_runtime_objc_sources
    ErrorObject.mm
    SwiftObject.mm
    SwiftValue.mm
    ReflectionMirrorObjC.mm
    ObjCRuntimeGetImageNameFromClass.mm)

set(swift_runtime_sources
    AnyHashableSupport.cpp
    Array.cpp
    AutoDiffSupport.cpp
    BackDeployment.cpp
    Bincompat.cpp
    Casting.cpp
    CompatibilityOverride.cpp
    CygwinPort.cpp
    Demangle.cpp
    DynamicCast.cpp
    Enum.cpp
    EnvironmentVariables.cpp
    ErrorObjectCommon.cpp
    ErrorObjectConstants.cpp
    ErrorObjectNative.cpp
    Errors.cpp
    ErrorDefaultImpls.cpp
    Exclusivity.cpp
    ExistentialContainer.cpp
    Float16Support.cpp
    FoundationSupport.cpp
    Heap.cpp
    HeapObject.cpp
    ImageInspectionCommon.cpp
    ImageInspectionMachO.cpp
    ImageInspectionELF.cpp
    ImageInspectionCOFF.cpp
    ImageInspectionStatic.cpp
    KeyPaths.cpp
    KnownMetadata.cpp
    Metadata.cpp
    MetadataLookup.cpp
    MutexPThread.cpp
    MutexWin32.cpp
    Numeric.cpp
    Once.cpp
    Portability.cpp
    ProtocolConformance.cpp
    RefCount.cpp
    ReflectionMirror.cpp
    RuntimeInvocationsTracking.cpp
    SwiftDtoa.cpp)

# Acknowledge that the following sources are known.
set(LLVM_OPTIONAL_SOURCES
    SwiftRT-COFF.cpp
    SwiftRT-ELF.cpp
    ${swift_runtime_sources}
    ${swift_runtime_objc_sources}
    ${swift_runtime_leaks_sources})

set(swift_runtime_library_compile_flags ${swift_runtime_compile_flags})
list(APPEND swift_runtime_library_compile_flags -DswiftCore_EXPORTS)
list(APPEND swift_runtime_library_compile_flags -I${SWIFT_SOURCE_DIR}/stdlib/include/llvm/Support -I${SWIFT_SOURCE_DIR}/include)

set(sdk "${SWIFT_HOST_VARIANT_SDK}")
if(SWIFT_BUILD_STATIC_STDLIB AND "${sdk}" STREQUAL "LINUX")
  set(static_binary_lnk_file_list)
  string(TOLOWER "${sdk}" lowercase_sdk)

  # Generate the static-executable-args.lnk file used for ELF systems (eg linux)
  set(linkfile "${lowercase_sdk}/static-executable-args.lnk")
  add_custom_command_target(swift_static_binary_${sdk}_args
    COMMAND
      "${CMAKE_COMMAND}" -E copy
      "${SWIFT_SOURCE_DIR}/utils/static-executable-args.lnk"
      "${SWIFTSTATICLIB_DIR}/${linkfile}"
    OUTPUT
      "${SWIFTSTATICLIB_DIR}/${linkfile}"
    DEPENDS
      "${SWIFT_SOURCE_DIR}/utils/static-executable-args.lnk")

  list(APPEND static_binary_lnk_file_list ${swift_static_binary_${sdk}_args})
  swift_install_in_component(FILES "${SWIFTSTATICLIB_DIR}/${linkfile}"
                             DESTINATION "lib/swift_static/${lowercase_sdk}"
                             COMPONENT stdlib)
  add_custom_target(static_binary_magic ALL DEPENDS ${static_binary_lnk_file_list})
endif()

add_swift_target_library(swiftRuntime OBJECT_LIBRARY
  ${swift_runtime_sources}
  ${swift_runtime_objc_sources}
  ${swift_runtime_leaks_sources}
  C_COMPILE_FLAGS
    ${swift_runtime_library_compile_flags}
  LINK_FLAGS ${swift_runtime_linker_flags}
  SWIFT_COMPILE_FLAGS ${SWIFT_STANDARD_LIBRARY_SWIFT_FLAGS}
  INSTALL_IN_COMPONENT never_install)

set(ELFISH_SDKS)
set(COFF_SDKS)
foreach(sdk ${SWIFT_CONFIGURED_SDKS})
  if("${SWIFT_SDK_${sdk}_OBJECT_FORMAT}" STREQUAL "ELF")
    list(APPEND ELFISH_SDKS ${sdk})
  elseif("${SWIFT_SDK_${sdk}_OBJECT_FORMAT}" STREQUAL "COFF")
    list(APPEND COFF_SDKS ${sdk})
  endif()
endforeach()


add_swift_target_library(swiftImageRegistrationObjectELF
                  OBJECT_LIBRARY IS_STDLIB IS_STDLIB_CORE
                  SwiftRT-ELF.cpp
                  C_COMPILE_FLAGS ${SWIFT_RUNTIME_CORE_CXX_FLAGS}
                  LINK_FLAGS ${SWIFT_RUNTIME_CORE_LINK_FLAGS}
                  TARGET_SDKS ${ELFISH_SDKS}
                  SWIFT_COMPILE_FLAGS ${SWIFT_STANDARD_LIBRARY_SWIFT_FLAGS}
                  INSTALL_IN_COMPONENT none)
# FIXME(compnerd) this should be compiled twice, once for static and once for
# shared.  The static version should be used for building the standard library.
add_swift_target_library(swiftImageRegistrationObjectCOFF
                  OBJECT_LIBRARY IS_STDLIB IS_STDLIB_CORE
                  SwiftRT-COFF.cpp
                  C_COMPILE_FLAGS ${SWIFT_RUNTIME_CORE_CXX_FLAGS}
                  LINK_FLAGS ${SWIFT_RUNTIME_CORE_LINK_FLAGS}
                  TARGET_SDKS ${COFF_SDKS}
                  SWIFT_COMPILE_FLAGS ${SWIFT_STANDARD_LIBRARY_SWIFT_FLAGS}
                  INSTALL_IN_COMPONENT none)

foreach(sdk ${SWIFT_CONFIGURED_SDKS})
  foreach(arch ${SWIFT_SDK_${sdk}_ARCHITECTURES})
    set(arch_subdir "${SWIFT_SDK_${sdk}_LIB_SUBDIR}/${arch}")
    set(arch_suffix "${SWIFT_SDK_${sdk}_LIB_SUBDIR}-${arch}")

    if("${SWIFT_SDK_${sdk}_OBJECT_FORMAT}" STREQUAL "ELF" OR
       "${SWIFT_SDK_${sdk}_OBJECT_FORMAT}" STREQUAL "COFF")
      # TODO(compnerd) switch to the generator expression when cmake is upgraded
      # to a version which supports it.
      # set(swiftrtObject "$<TARGET_OBJECTS:swiftImageRegistrationObject${SWIFT_SDK_${sdk}_OBJECT_FORMAT}-${arch_suffix}>")
      set(swiftrtObject ${CMAKE_CURRENT_BINARY_DIR}/CMakeFiles/swiftImageRegistrationObject${SWIFT_SDK_${sdk}_OBJECT_FORMAT}-${arch_suffix}.dir/SwiftRT-${SWIFT_SDK_${sdk}_OBJECT_FORMAT}.cpp${CMAKE_C_OUTPUT_EXTENSION})

      if(sdk STREQUAL WINDOWS)
        set(extension .obj)
      else()
        set(extension .o)
      endif()

      set(shared_runtime_registrar "${SWIFTLIB_DIR}/${arch_subdir}/swiftrt${extension}")
      set(static_runtime_registrar "${SWIFTSTATICLIB_DIR}/${arch_subdir}/swiftrt${extension}")

      add_custom_command_target(swiftImageRegistration-${arch_suffix}
                                COMMAND
                                  "${CMAKE_COMMAND}" -E copy "${swiftrtObject}" "${shared_runtime_registrar}"
                                COMMAND
                                  "${CMAKE_COMMAND}" -E copy "${swiftrtObject}" "${static_runtime_registrar}"
                                OUTPUT
                                  "${shared_runtime_registrar}"
                                  "${static_runtime_registrar}"
                                DEPENDS
                                  "${swiftrtObject}")
      if(SWIFT_BUILD_DYNAMIC_STDLIB)
        swift_install_in_component(FILES
                                     "${shared_runtime_registrar}"
                                   DESTINATION
                                     "lib/swift/${arch_subdir}"
                                   COMPONENT
                                     stdlib)
      endif()
      if(SWIFT_BUILD_STATIC_STDLIB)
        swift_install_in_component(FILES
                                     "${static_runtime_registrar}"
                                   DESTINATION
                                     "lib/swift_static/${arch_subdir}"
                                   COMPONENT
                                     stdlib)
      endif()

      add_dependencies(swift-stdlib-${arch_suffix} ${swiftImageRegistration-${arch_suffix}})

      add_custom_target(swiftImageRegistration-${arch_suffix}
                        ALL DEPENDS
                          ${swiftImageRegistration-${arch_suffix}})
      add_dependencies(stdlib swift-stdlib-${arch_suffix} swiftImageRegistration-${arch_suffix})
    endif()

    # Generate the static-stdlib-args.lnk file used by -static-stdlib option for
    # 'GenericUnix' (eg linux)
    if(${SWIFT_SDK_${sdk}_OBJECT_FORMAT} STREQUAL ELF)
      string(TOLOWER "${sdk}" lowercase_sdk)
      if(SWIFT_${SWIFT_HOST_VARIANT_SDK}_${SWIFT_HOST_VARIANT_ARCH}_ICU_STATICLIB)
        set(libicu_i18n_a -licui18nswift)
        set(libicu_uc_a -licuucswift)
        set(libicu_data_a -licudataswift)
      else()
        find_package(ICU REQUIRED COMPONENTS uc i18n)
        get_filename_component(ICU_UC_LIBDIR "${ICU_UC_LIBRARIES}" DIRECTORY)
        get_filename_component(ICU_I18N_LIBDIR "${ICU_I18N_LIBRARIES}" DIRECTORY)

        set(libicu_i18n_a -licui18n)
        set(libicu_uc_a -licuuc)
        set(libicu_data_a)
        if(EXISTS ${ICU_I18N_LIBDIR}/libicui18n.a AND
            EXISTS ${ICU_UC_LIBDIR}/libicuuc.a AND
            EXISTS ${ICU_UC_LIBDIR}/libicudata.a)
          set(libicu_i18n_a ${ICU_I18N_LIBDIR}/libicui18n.a)
          set(libicu_uc_a ${ICU_UC_LIBDIR}/libicuuc.a)
          set(libicu_data_a ${ICU_UC_LIBDIR}/libicudata.a)
        endif()
      endif()

      set(linkfile ${lowercase_sdk}/static-stdlib-args.lnk)
      file(WRITE "${SWIFTSTATICLIB_DIR}/${linkfile}" "
-ldl
-lpthread
-lswiftCore
${libicu_i18n_a}
${libicu_uc_a}
${libicu_data_a}
-lstdc++
-lm
-Xlinker -export-dynamic
-Xlinker --exclude-libs
-Xlinker ALL")

      swift_install_in_component(FILES "${SWIFTSTATICLIB_DIR}/${linkfile}"
                                 DESTINATION "lib/swift_static/${lowercase_sdk}"
                                 COMPONENT stdlib)
    endif()
  endforeach()
endforeach()