forked from OSchip/llvm-project
102 lines
3.9 KiB
CMake
102 lines
3.9 KiB
CMake
# This tool creates a shared library from the LLVM libraries. Generating this
|
|
# library is enabled by setting LLVM_BUILD_LLVM_DYLIB=yes on the CMake
|
|
# commandline. By default the shared library only exports the LLVM C API.
|
|
|
|
set(SOURCES
|
|
libllvm.cpp
|
|
)
|
|
|
|
llvm_map_components_to_libnames(LIB_NAMES ${LLVM_DYLIB_COMPONENTS})
|
|
|
|
if(LLVM_LINK_LLVM_DYLIB AND LLVM_DYLIB_EXPORTED_SYMBOL_FILE)
|
|
message(WARNING "Using LLVM_LINK_LLVM_DYLIB with LLVM_DYLIB_EXPORTED_SYMBOL_FILE may not work. Use at your own risk.")
|
|
endif()
|
|
|
|
# libLLVM.so should not have any dependencies on any other LLVM
|
|
# shared libraries. When using the "all" pseudo-component,
|
|
# LLVM_AVAILABLE_LIBS is added to the dependencies, which may
|
|
# contain shared libraries (e.g. libLTO).
|
|
#
|
|
# Also exclude libLLVMTableGen for the following reasons:
|
|
# - it is only used by internal *-tblgen utilities;
|
|
# - it pollutes the global options space.
|
|
foreach(lib ${LIB_NAMES})
|
|
get_target_property(t ${lib} TYPE)
|
|
if("${lib}" STREQUAL "LLVMTableGen")
|
|
elseif("x${t}" STREQUAL "xSTATIC_LIBRARY")
|
|
list(APPEND FILTERED_LIB_NAMES ${lib})
|
|
endif()
|
|
endforeach()
|
|
set(LIB_NAMES ${FILTERED_LIB_NAMES})
|
|
|
|
if(LLVM_DYLIB_EXPORTED_SYMBOL_FILE)
|
|
set(LLVM_EXPORTED_SYMBOL_FILE ${LLVM_DYLIB_EXPORTED_SYMBOL_FILE})
|
|
add_custom_target(libLLVMExports DEPENDS ${LLVM_EXPORTED_SYMBOL_FILE})
|
|
endif()
|
|
|
|
add_llvm_library(LLVM SHARED DISABLE_LLVM_LINK_LLVM_DYLIB SONAME ${SOURCES})
|
|
|
|
list(REMOVE_DUPLICATES LIB_NAMES)
|
|
if(("${CMAKE_SYSTEM_NAME}" STREQUAL "Linux") OR (MINGW) OR ("${CMAKE_SYSTEM_NAME}" STREQUAL "FreeBSD") OR ("${CMAKE_SYSTEM_NAME}" STREQUAL "DragonFly")) # FIXME: It should be "GNU ld for elf"
|
|
configure_file(
|
|
${CMAKE_CURRENT_SOURCE_DIR}/simple_version_script.map.in
|
|
${LLVM_LIBRARY_DIR}/tools/llvm-shlib/simple_version_script.map)
|
|
|
|
# GNU ld doesn't resolve symbols in the version script.
|
|
set(LIB_NAMES -Wl,--version-script,${LLVM_LIBRARY_DIR}/tools/llvm-shlib/simple_version_script.map -Wl,--whole-archive ${LIB_NAMES} -Wl,--no-whole-archive)
|
|
elseif("${CMAKE_SYSTEM_NAME}" STREQUAL "Darwin")
|
|
set(LIB_NAMES -Wl,-all_load ${LIB_NAMES})
|
|
endif()
|
|
|
|
target_link_libraries(LLVM PRIVATE ${LIB_NAMES})
|
|
|
|
if (LLVM_DYLIB_SYMBOL_VERSIONING)
|
|
set_property(TARGET LLVM APPEND_STRING PROPERTY LINK_FLAGS " -Wl,--default-symver")
|
|
endif()
|
|
|
|
if (APPLE)
|
|
set_property(TARGET LLVM APPEND_STRING PROPERTY
|
|
LINK_FLAGS
|
|
" -compatibility_version 1 -current_version ${LLVM_VERSION_MAJOR}.${LLVM_VERSION_MINOR}.${LLVM_VERSION_PATCH}")
|
|
endif()
|
|
|
|
if(TARGET libLLVMExports)
|
|
add_dependencies(LLVM libLLVMExports)
|
|
endif()
|
|
|
|
if(LLVM_BUILD_LLVM_C_DYLIB)
|
|
# To get the export list for a single llvm library:
|
|
# nm ${LIB_PATH} | awk "/T _LLVM/ { print $3 }" | sort -u | sed -e "s/^_//g" > ${LIB_PATH}.exports
|
|
|
|
if(NOT APPLE)
|
|
message(FATAL_ERROR "Generating libLLVM-c is only supported on Darwin")
|
|
endif()
|
|
|
|
set(LLVM_EXPORTED_SYMBOL_FILE ${CMAKE_BINARY_DIR}/libllvm-c.exports)
|
|
|
|
set(LIB_DIR ${CMAKE_BINARY_DIR}/${CMAKE_CFG_INTDIR}/lib${LLVM_LIBDIR_SUFFIX})
|
|
set(LIB_NAME ${LIB_DIR}/${CMAKE_SHARED_LIBRARY_PREFIX}LLVM)
|
|
set(LIB_PATH ${LIB_NAME}${CMAKE_SHARED_LIBRARY_SUFFIX})
|
|
set(LIB_EXPORTS_PATH ${LIB_NAME}.exports)
|
|
list(APPEND LLVM_DYLIB_REQUIRED_EXPORTS ${LIB_EXPORTS_PATH})
|
|
|
|
add_custom_command(OUTPUT ${LLVM_EXPORTED_SYMBOL_FILE}
|
|
COMMAND nm ${LIB_PATH} | awk "/T _LLVM/ || /T LLVM/ { print $3 }" | sort -u | sed -e "s/^_//g" > ${LLVM_EXPORTED_SYMBOL_FILE}
|
|
WORKING_DIRECTORY ${LIB_DIR}
|
|
DEPENDS LLVM
|
|
COMMENT "Generating Export list for LLVM..."
|
|
VERBATIM )
|
|
|
|
add_custom_target(libLLVMCExports DEPENDS ${LLVM_EXPORTED_SYMBOL_FILE})
|
|
|
|
add_llvm_library(LLVM-C SHARED ${SOURCES})
|
|
|
|
target_link_libraries(LLVM-C PUBLIC LLVM)
|
|
add_dependencies(LLVM-C libLLVMCExports)
|
|
|
|
set_property(TARGET LLVM-C APPEND_STRING PROPERTY
|
|
LINK_FLAGS
|
|
" -compatibility_version 1 -current_version ${LLVM_VERSION_MAJOR}.${LLVM_VERSION_MINOR}.${LLVM_VERSION_PATCH} -Wl,-reexport_library ${LIB_PATH}")
|
|
endif()
|
|
|