1 # This tool creates a shared library from the LLVM libraries. Generating this
2 # library is enabled by setting LLVM_BUILD_LLVM_DYLIB=yes on the CMake
3 # commandline. By default the shared library only exports the LLVM C API.
6 # You can configure which libraries from LLVM you want to include in the shared
7 # library by setting LLVM_DYLIB_COMPONENTS to a semi-colon delimited list of
8 # LLVM components. All compoenent names handled by llvm-config are valid.
10 if(NOT DEFINED LLVM_DYLIB_COMPONENTS)
11 set(LLVM_DYLIB_COMPONENTS
12 ${LLVM_TARGETS_TO_BUILD}
40 add_definitions( -DLLVM_VERSION_INFO=\"${PACKAGE_VERSION}\" )
46 llvm_map_components_to_libnames(LIB_NAMES ${LLVM_DYLIB_COMPONENTS})
48 if(NOT DEFINED LLVM_DYLIB_EXPORTED_SYMBOL_FILE)
50 if( WIN32 AND NOT CYGWIN )
51 message(FATAL_ERROR "Auto-generation not implemented for Win32 without GNU utils. Please specify LLVM_EXPORTED_SYMBOL_FILE.")
54 # To get the export list for a single llvm library:
55 # nm ${LIB_PATH} | awk "/T _LLVM/ { print $3 }" | sort -u | sed -e "s/^_//g" > ${LIB_PATH}.exports
57 set(LLVM_EXPORTED_SYMBOL_FILE ${CMAKE_BINARY_DIR}/libllvm.exports)
59 if (NOT LLVM_DYLIB_EXPORT_ALL)
60 foreach (lib ${LIB_NAMES})
61 set(LIB_DIR ${CMAKE_BINARY_DIR}/${CMAKE_CFG_INTDIR}/lib${LLVM_LIBDIR_SUFFIX})
62 set(LIB_NAME ${LIB_DIR}/${CMAKE_STATIC_LIBRARY_PREFIX}${lib})
63 set(LIB_PATH ${LIB_NAME}${CMAKE_STATIC_LIBRARY_SUFFIX})
64 set(LIB_EXPORTS_PATH ${LIB_NAME}.exports)
65 list(APPEND LLVM_DYLIB_REQUIRED_EXPORTS ${LIB_EXPORTS_PATH})
68 add_custom_command(OUTPUT ${LIB_EXPORTS_PATH}
69 COMMAND nm ${LIB_PATH} | awk "/T _LLVM/ || /T LLVM/ { print $3 }" | sort -u | sed -e "s/^_//g" > ${LIB_EXPORTS_PATH}
70 WORKING_DIRECTORY ${LIB_DIR}
72 COMMENT "Generating Export list for ${lib}..."
77 if (LLVM_DYLIB_EXPORT_ALL)
78 add_custom_command(OUTPUT ${LLVM_EXPORTED_SYMBOL_FILE}
79 COMMAND echo \"LLVM*\" > ${LLVM_EXPORTED_SYMBOL_FILE} && echo \"_Z*llvm*\" >> ${LLVM_EXPORTED_SYMBOL_FILE}
80 WORKING_DIRECTORY ${LIB_DIR}
81 DEPENDS ${LLVM_DYLIB_REQUIRED_EXPORTS}
82 COMMENT "Generating combined export list...")
84 add_custom_command(OUTPUT ${LLVM_EXPORTED_SYMBOL_FILE}
85 COMMAND cat ${LLVM_DYLIB_REQUIRED_EXPORTS} > ${LLVM_EXPORTED_SYMBOL_FILE}
86 WORKING_DIRECTORY ${LIB_DIR}
87 DEPENDS ${LLVM_DYLIB_REQUIRED_EXPORTS}
88 COMMENT "Generating combined export list...")
91 add_custom_target(libLLVMExports DEPENDS ${LLVM_EXPORTED_SYMBOL_FILE})
93 set(LLVM_EXPORTED_SYMBOL_FILE ${LLVM_DYLIB_EXPORTED_SYMBOL_FILE})
94 add_custom_target(libLLVMExports DEPENDS ${LLVM_EXPORTED_SYMBOL_FILE})
97 add_llvm_library(LLVM SHARED ${SOURCES})
99 list(REMOVE_DUPLICATES LIB_NAMES)
100 if("${CMAKE_SYSTEM_NAME}" STREQUAL "Linux") # FIXME: It should be "GNU ld for elf"
101 # GNU ld doesn't resolve symbols in the version script.
102 set(LIB_NAMES -Wl,--whole-archive ${LIB_NAMES} -Wl,--no-whole-archive)
103 elseif("${CMAKE_SYSTEM_NAME}" STREQUAL "Darwin")
104 set(LIB_NAMES -Wl,-all_load ${LIB_NAMES})
107 target_link_libraries(LLVM PRIVATE ${LIB_NAMES})
109 add_dependencies(LLVM libLLVMExports)
112 set_property(TARGET LLVM APPEND_STRING PROPERTY
114 " -compatibility_version ${LLVM_VERSION_MAJOR}.${LLVM_VERSION_MINOR} -current_version ${LLVM_VERSION_MAJOR}.${LLVM_VERSION_MINOR}")