+# llvm_add_library(name sources...
+# SHARED;STATIC
+# STATIC by default w/o BUILD_SHARED_LIBS.
+# SHARED by default w/ BUILD_SHARED_LIBS.
+# MODULE
+# Target ${name} might not be created on unsupported platforms.
+# Check with "if(TARGET ${name})".
+# OUTPUT_NAME name
+# Corresponds to OUTPUT_NAME in target properties.
+# DEPENDS targets...
+# Same semantics as add_dependencies().
+# LINK_COMPONENTS components...
+# Same as the variable LLVM_LINK_COMPONENTS.
+# LINK_LIBS lib_targets...
+# Same semantics as target_link_libraries().
+# ADDITIONAL_HEADERS
+# May specify header files for IDE generators.
+# )
+function(llvm_add_library name)
+ cmake_parse_arguments(ARG
+ "MODULE;SHARED;STATIC"
+ "OUTPUT_NAME"
+ "ADDITIONAL_HEADERS;DEPENDS;LINK_COMPONENTS;LINK_LIBS;OBJLIBS"
+ ${ARGN})
+ list(APPEND LLVM_COMMON_DEPENDS ${ARG_DEPENDS})
+ if(ARG_ADDITIONAL_HEADERS)
+ # Pass through ADDITIONAL_HEADERS.
+ set(ARG_ADDITIONAL_HEADERS ADDITIONAL_HEADERS ${ARG_ADDITIONAL_HEADERS})
+ endif()
+ if(ARG_OBJLIBS)
+ set(ALL_FILES ${ARG_OBJLIBS})
+ else()
+ llvm_process_sources(ALL_FILES ${ARG_UNPARSED_ARGUMENTS} ${ARG_ADDITIONAL_HEADERS})
+ endif()
+
+ if(ARG_MODULE)
+ if(ARG_SHARED OR ARG_STATIC)
+ message(WARNING "MODULE with SHARED|STATIC doesn't make sense.")
+ endif()
+ if(NOT LLVM_ENABLE_PLUGINS)
+ message(STATUS "${name} ignored -- Loadable modules not supported on this platform.")
+ return()
+ endif()
+ else()
+ if(BUILD_SHARED_LIBS AND NOT ARG_STATIC)
+ set(ARG_SHARED TRUE)
+ endif()
+ if(NOT ARG_SHARED)
+ set(ARG_STATIC TRUE)
+ endif()
+ endif()
+
+ # Generate objlib
+ if(ARG_SHARED AND ARG_STATIC)
+ # Generate an obj library for both targets.
+ set(obj_name "obj.${name}")
+ add_library(${obj_name} OBJECT EXCLUDE_FROM_ALL
+ ${ALL_FILES}
+ )
+ llvm_update_compile_flags(${obj_name})
+ set(ALL_FILES "$<TARGET_OBJECTS:${obj_name}>")
+
+ # Do add_dependencies(obj) later due to CMake issue 14747.
+ list(APPEND objlibs ${obj_name})
+
+ set_target_properties(${obj_name} PROPERTIES FOLDER "Object Libraries")
+ endif()
+
+ if(ARG_SHARED AND ARG_STATIC)
+ # static
+ set(name_static "${name}_static")
+ if(ARG_OUTPUT_NAME)
+ set(output_name OUTPUT_NAME "${ARG_OUTPUT_NAME}")
+ endif()
+ # DEPENDS has been appended to LLVM_COMMON_LIBS.
+ llvm_add_library(${name_static} STATIC
+ ${output_name}
+ OBJLIBS ${ALL_FILES} # objlib
+ LINK_LIBS ${ARG_LINK_LIBS}
+ LINK_COMPONENTS ${ARG_LINK_COMPONENTS}
+ )
+ # FIXME: Add name_static to anywhere in TARGET ${name}'s PROPERTY.
+ set(ARG_STATIC)
+ endif()
+
+ if(ARG_MODULE)
+ add_library(${name} MODULE ${ALL_FILES})
+ elseif(ARG_SHARED)
+ add_library(${name} SHARED ${ALL_FILES})
+ else()
+ add_library(${name} STATIC ${ALL_FILES})
+ endif()