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      1 set(LLVM_LINK_COMPONENTS support)
      2 
      3 set(BUILDVARIABLES_SRCPATH ${CMAKE_CURRENT_SOURCE_DIR}/BuildVariables.inc.in)
      4 set(BUILDVARIABLES_OBJPATH ${CMAKE_CURRENT_BINARY_DIR}/BuildVariables.inc)
      5 
      6 # Add the llvm-config tool.
      7 add_llvm_tool(llvm-config
      8   llvm-config.cpp
      9   )
     10 
     11 # Compute the substitution values for various items.
     12 get_property(LLVM_SYSTEM_LIBS_LIST TARGET LLVMSupport PROPERTY LLVM_SYSTEM_LIBS)
     13 foreach(l ${LLVM_SYSTEM_LIBS_LIST})
     14   set(SYSTEM_LIBS ${SYSTEM_LIBS} "-l${l}")
     15 endforeach()
     16 string(REPLACE ";" " " SYSTEM_LIBS "${SYSTEM_LIBS}")
     17 
     18 # Fetch target specific compile options, e.g. RTTI option
     19 get_property(COMPILE_FLAGS TARGET llvm-config PROPERTY COMPILE_FLAGS)
     20 
     21 # Use configure_file to create BuildVariables.inc.
     22 set(LLVM_SRC_ROOT ${LLVM_MAIN_SRC_DIR})
     23 set(LLVM_OBJ_ROOT ${LLVM_BINARY_DIR})
     24 set(LLVM_CPPFLAGS "${CMAKE_CPP_FLAGS} ${CMAKE_CPP_FLAGS_${uppercase_CMAKE_BUILD_TYPE}} ${LLVM_DEFINITIONS}")
     25 set(LLVM_CFLAGS "${CMAKE_C_FLAGS} ${CMAKE_C_FLAGS_${uppercase_CMAKE_BUILD_TYPE}} ${LLVM_DEFINITIONS}")
     26 set(LLVM_CXXFLAGS "${CMAKE_CXX_FLAGS} ${CMAKE_CXX_FLAGS_${uppercase_CMAKE_BUILD_TYPE}} ${COMPILE_FLAGS} ${LLVM_DEFINITIONS}")
     27 set(LLVM_BUILD_SYSTEM cmake)
     28 set(LLVM_HAS_RTTI ${LLVM_CONFIG_HAS_RTTI})
     29 
     30 # Use the C++ link flags, since they should be a superset of C link flags.
     31 set(LLVM_LDFLAGS "${CMAKE_CXX_LINK_FLAGS}")
     32 set(LLVM_BUILDMODE ${CMAKE_BUILD_TYPE})
     33 set(LLVM_SYSTEM_LIBS ${SYSTEM_LIBS})
     34 if(BUILD_SHARED_LIBS)
     35   set(LLVM_ENABLE_SHARED ON)
     36 else()
     37   set(LLVM_ENABLE_SHARED OFF)
     38 endif()
     39 string(REPLACE ";" " " LLVM_TARGETS_BUILT "${LLVM_TARGETS_TO_BUILD}")
     40 configure_file(${BUILDVARIABLES_SRCPATH} ${BUILDVARIABLES_OBJPATH} @ONLY)
     41 
     42 # Set build-time environment(s).
     43 add_definitions(-DCMAKE_CFG_INTDIR="${CMAKE_CFG_INTDIR}")
     44 
     45 # Add the dependency on the generation step.
     46 add_file_dependencies(${CMAKE_CURRENT_SOURCE_DIR}/llvm-config.cpp ${BUILDVARIABLES_OBJPATH})
     47 
     48 if(CMAKE_CROSSCOMPILING)
     49   set(${project}_LLVM_CONFIG_EXE "${LLVM_NATIVE_BUILD}/bin/llvm-config")
     50   set(${project}_LLVM_CONFIG_EXE ${${project}_LLVM_CONFIG_EXE} PARENT_SCOPE)
     51 
     52   add_custom_command(OUTPUT "${${project}_LLVM_CONFIG_EXE}"
     53     COMMAND ${CMAKE_COMMAND} --build . --target llvm-config --config $<CONFIGURATION>
     54     DEPENDS ${LLVM_NATIVE_BUILD}/CMakeCache.txt
     55     WORKING_DIRECTORY ${LLVM_NATIVE_BUILD}
     56     COMMENT "Building native llvm-config...")
     57   add_custom_target(${project}NativeLLVMConfig DEPENDS ${${project}_LLVM_CONFIG_EXE})
     58   add_dependencies(${project}NativeLLVMConfig CONFIGURE_LLVM_NATIVE)
     59 
     60   add_dependencies(llvm-config ${project}NativeLLVMConfig)
     61 endif(CMAKE_CROSSCOMPILING)
     62