#=============================================================================== # Setup Project #=============================================================================== cmake_minimum_required(VERSION 3.4.3) if(POLICY CMP0042) cmake_policy(SET CMP0042 NEW) # Set MACOSX_RPATH=YES by default endif() if (CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR) project(libcxxabi) # Rely on llvm-config. set(CONFIG_OUTPUT) if (NOT LLVM_CONFIG_PATH) find_program(LLVM_CONFIG_PATH "llvm-config") endif() if(DEFINED LLVM_PATH) set(LLVM_INCLUDE_DIR ${LLVM_INCLUDE_DIR} CACHE PATH "Path to llvm/include") set(LLVM_PATH ${LLVM_PATH} CACHE PATH "Path to LLVM source tree") set(LLVM_MAIN_SRC_DIR ${LLVM_PATH}) set(LLVM_CMAKE_PATH "${LLVM_PATH}/cmake/modules") elseif(LLVM_CONFIG_PATH) message(STATUS "Found LLVM_CONFIG_PATH as ${LLVM_CONFIG_PATH}") set(CONFIG_COMMAND ${LLVM_CONFIG_PATH} "--includedir" "--prefix" "--src-root") execute_process( COMMAND ${CONFIG_COMMAND} RESULT_VARIABLE HAD_ERROR OUTPUT_VARIABLE CONFIG_OUTPUT ) if(NOT HAD_ERROR) string(REGEX REPLACE "[ \t]*[\r\n]+[ \t]*" ";" CONFIG_OUTPUT ${CONFIG_OUTPUT}) else() string(REPLACE ";" " " CONFIG_COMMAND_STR "${CONFIG_COMMAND}") message(STATUS "${CONFIG_COMMAND_STR}") message(FATAL_ERROR "llvm-config failed with status ${HAD_ERROR}") endif() list(GET CONFIG_OUTPUT 0 INCLUDE_DIR) list(GET CONFIG_OUTPUT 1 LLVM_OBJ_ROOT) list(GET CONFIG_OUTPUT 2 MAIN_SRC_DIR) set(LLVM_INCLUDE_DIR ${INCLUDE_DIR} CACHE PATH "Path to llvm/include") set(LLVM_BINARY_DIR ${LLVM_OBJ_ROOT} CACHE PATH "Path to LLVM build tree") set(LLVM_MAIN_SRC_DIR ${MAIN_SRC_DIR} CACHE PATH "Path to LLVM source tree") set(LLVM_LIT_PATH "${LLVM_PATH}/utils/lit/lit.py") # --cmakedir is supported since llvm r291218 (4.0 release) execute_process( COMMAND ${LLVM_CONFIG_PATH} --cmakedir RESULT_VARIABLE HAD_ERROR OUTPUT_VARIABLE CONFIG_OUTPUT ERROR_QUIET) if(NOT HAD_ERROR) string(STRIP "${CONFIG_OUTPUT}" LLVM_CMAKE_PATH) else() set(LLVM_CMAKE_PATH "${LLVM_BINARY_DIR}/lib${LLVM_LIBDIR_SUFFIX}/cmake/llvm") endif() else() message(FATAL_ERROR "llvm-config not found and LLVM_MAIN_SRC_DIR not defined. " "Reconfigure with -DLLVM_CONFIG_PATH=path/to/llvm-config " "or -DLLVM_PATH=path/to/llvm-source-root.") endif() if(EXISTS ${LLVM_CMAKE_PATH}) list(APPEND CMAKE_MODULE_PATH "${LLVM_CMAKE_PATH}") include("${LLVM_CMAKE_PATH}/AddLLVM.cmake") include("${LLVM_CMAKE_PATH}/HandleLLVMOptions.cmake") else() message(FATAL_ERROR "Not found: ${LLVM_CMAKE_PATH}") endif() set(PACKAGE_NAME libcxxabi) set(PACKAGE_VERSION 5.0.0svn) set(PACKAGE_STRING "${PACKAGE_NAME} ${PACKAGE_VERSION}") set(PACKAGE_BUGREPORT "llvm-bugs@lists.llvm.org") if (NOT DEFINED LLVM_INCLUDE_TESTS) set(LLVM_INCLUDE_TESTS ON) endif() if(EXISTS ${LLVM_MAIN_SRC_DIR}/utils/lit/lit.py) set(LLVM_LIT ${LLVM_MAIN_SRC_DIR}/utils/lit/lit.py) else() # Seek installed Lit. find_program(LLVM_LIT "lit.py" ${LLVM_MAIN_SRC_DIR}/utils/lit DOC "Path to lit.py") endif() if(LLVM_LIT) # Define the default arguments to use with 'lit', and an option for the user # to override. set(LIT_ARGS_DEFAULT "-sv") if (MSVC OR XCODE) set(LIT_ARGS_DEFAULT "${LIT_ARGS_DEFAULT} --no-progress-bar") endif() set(LLVM_LIT_ARGS "${LIT_ARGS_DEFAULT}" CACHE STRING "Default options for lit") # On Win32 hosts, provide an option to specify the path to the GnuWin32 tools. if( WIN32 AND NOT CYGWIN ) set(LLVM_LIT_TOOLS_DIR "" CACHE PATH "Path to GnuWin32 tools") endif() else() set(LLVM_INCLUDE_TESTS OFF) endif() set(LIBCXXABI_LIBDIR_SUFFIX "${LLVM_LIBDIR_SUFFIX}" CACHE STRING "Define suffix of library directory name (32/64)") set(LIBCXXABI_STANDALONE_BUILD 1) else() set(LLVM_MAIN_SRC_DIR "${CMAKE_SOURCE_DIR}" CACHE PATH "Path to LLVM source tree") set(LLVM_LIT "${CMAKE_SOURCE_DIR}/utils/lit/lit.py") set(LIBCXXABI_LIBDIR_SUFFIX ${LLVM_LIBDIR_SUFFIX}) endif() #=============================================================================== # Setup CMake Options #=============================================================================== # Define options. option(LIBCXXABI_ENABLE_EXCEPTIONS "Use exceptions." ON) option(LIBCXXABI_ENABLE_ASSERTIONS "Enable assertions independent of build mode." ON) option(LIBCXXABI_ENABLE_PEDANTIC "Compile with pedantic enabled." ON) option(LIBCXXABI_ENABLE_WERROR "Fail and stop if a warning is triggered." OFF) option(LIBCXXABI_USE_LLVM_UNWINDER "Build and use the LLVM unwinder." OFF) option(LIBCXXABI_ENABLE_STATIC_UNWINDER "Statically link the LLVM unwinder." OFF) option(LIBCXXABI_USE_COMPILER_RT "Use compiler-rt instead of libgcc" OFF) option(LIBCXXABI_ENABLE_THREADS "Build with threads enabled" ON) option(LIBCXXABI_HAS_PTHREAD_API "Ignore auto-detection and force use of pthread API" OFF) option(LIBCXXABI_HAS_EXTERNAL_THREAD_API "Build libc++abi with an externalized threading API. This option may only be set to ON when LIBCXXABI_ENABLE_THREADS=ON." OFF) option(LIBCXXABI_BUILD_EXTERNAL_THREAD_LIBRARY "Build libc++abi with an externalized threading library. This option may only be set to ON when LIBCXXABI_ENABLE_THREADS=ON" OFF) option(LIBCXXABI_BUILD_32_BITS "Build 32 bit libc++abi." ${LLVM_BUILD_32_BITS}) option(LIBCXXABI_INCLUDE_TESTS "Generate build targets for the libc++abi unit tests." ${LLVM_INCLUDE_TESTS}) set(LIBCXXABI_TARGET_TRIPLE "" CACHE STRING "Target triple for cross compiling.") set(LIBCXXABI_GCC_TOOLCHAIN "" CACHE PATH "GCC toolchain for cross compiling.") set(LIBCXXABI_SYSROOT "" CACHE PATH "Sysroot for cross compiling.") set(LIBCXXABI_LIBCXX_LIBRARY_PATH "" CACHE PATH "The path to libc++ library.") # Default to building a shared library so that the default options still test # the libc++abi that is being built. There are two problems with testing a # static libc++abi. In the case of a standalone build, the tests will link the # system's libc++, which might not have been built against our libc++abi. In the # case of an in tree build, libc++ will prefer a dynamic libc++abi from the # system over a static libc++abi from the output directory. option(LIBCXXABI_ENABLE_SHARED "Build libc++abi as a shared library." ON) option(LIBCXXABI_ENABLE_STATIC "Build libc++abi as a static library." ON) if (NOT LIBCXXABI_ENABLE_SHARED AND NOT LIBCXXABI_ENABLE_STATIC) message(FATAL_ERROR "libc++abi must be built as either a shared or static library.") endif() if (LLVM_EXTERNAL_LIBCXX_SOURCE_DIR) set(LIBCXXABI_LIBCXX_SRC_DIRS ${LLVM_EXTERNAL_LIBCXX_SOURCE_DIR}) else() set(LIBCXXABI_LIBCXX_SRC_DIRS "${LLVM_MAIN_SRC_DIR}/projects/libcxx" "${LLVM_MAIN_SRC_DIR}/runtimes/libcxx" ) endif() set(LIBCXXABI_LIBCXX_INCLUDE_DIRS "") foreach(dir ${LIBCXXABI_LIBCXX_SRC_DIRS}) list(APPEND LIBCXXABI_LIBCXX_INCLUDE_DIRS "${dir}/include") endforeach() find_path( LIBCXXABI_LIBCXX_INCLUDES vector PATHS ${LIBCXXABI_LIBCXX_INCLUDES} ${LIBCXXABI_LIBCXX_PATH}/include ${CMAKE_BINARY_DIR}/${LIBCXXABI_LIBCXX_INCLUDES} ${LIBCXXABI_LIBCXX_INCLUDE_DIRS} ${LLVM_INCLUDE_DIR}/c++/v1 ) set(LIBCXXABI_LIBCXX_INCLUDES "${LIBCXXABI_LIBCXX_INCLUDES}" CACHE PATH "Specify path to libc++ includes." FORCE) find_path( LIBCXXABI_LIBCXX_PATH utils/libcxx/test/__init__.py PATHS ${LIBCXXABI_LIBCXX_PATH} ${LIBCXXABI_LIBCXX_INCLUDES}/../ ${LIBCXXABI_LIBCXX_SRC_DIRS} NO_DEFAULT_PATH ) if (LIBCXXABI_LIBCXX_PATH STREQUAL "LIBCXXABI_LIBCXX_PATH-NOTFOUND") message(WARNING "LIBCXXABI_LIBCXX_PATH was not specified and couldn't be infered.") set(LIBCXXABI_LIBCXX_PATH "") endif() set(LIBCXXABI_LIBCXX_PATH "${LIBCXXABI_LIBCXX_PATH}" CACHE PATH "Specify path to libc++ source." FORCE) #=============================================================================== # Configure System #=============================================================================== # Add path for custom modules set(CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake" "${CMAKE_CURRENT_SOURCE_DIR}/cmake/Modules" ${CMAKE_MODULE_PATH} ) set(LIBCXXABI_COMPILER ${CMAKE_CXX_COMPILER}) set(LIBCXXABI_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}) set(LIBCXXABI_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR}) set(LIBCXXABI_LIBRARY_DIR ${CMAKE_BINARY_DIR}/lib${LIBCXXABI_LIBDIR_SUFFIX}) set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${LIBCXXABI_LIBRARY_DIR}) set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${LIBCXXABI_LIBRARY_DIR}) # By default, for non-standalone builds, libcxx and libcxxabi share a library # directory. if (NOT LIBCXXABI_LIBCXX_LIBRARY_PATH) set(LIBCXXABI_LIBCXX_LIBRARY_PATH "${LIBCXXABI_LIBRARY_DIR}" CACHE PATH "The path to libc++ library.") endif() # Check that we can build with 32 bits if requested. if (CMAKE_SIZEOF_VOID_P EQUAL 8 AND NOT WIN32) if (LIBCXXABI_BUILD_32_BITS AND NOT LLVM_BUILD_32_BITS) # Don't duplicate the output from LLVM message(STATUS "Building 32 bits executables and libraries.") endif() elseif(LIBCXXABI_BUILD_32_BITS) message(FATAL_ERROR "LIBCXXABI_BUILD_32_BITS=ON is not supported on this platform.") endif() #=============================================================================== # Setup Compiler Flags #=============================================================================== # Get required flags. macro(append_if list condition var) if (${condition}) list(APPEND ${list} ${var}) endif() endmacro() macro(add_target_flags_if condition var) if (${condition}) set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${var}") set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${var}") list(APPEND LIBCXXABI_LINK_FLAGS ${var}) endif() endmacro() set(LIBCXXABI_C_FLAGS "") set(LIBCXXABI_CXX_FLAGS "") set(LIBCXXABI_COMPILE_FLAGS "") set(LIBCXXABI_LINK_FLAGS "") # Configure target flags add_target_flags_if(LIBCXXABI_BUILD_32_BITS "-m32") add_target_flags_if(LIBCXXABI_TARGET_TRIPLE "-target ${LIBCXXABI_TARGET_TRIPLE}") add_target_flags_if(LIBCXXABI_GCC_TOOLCHAIN "-gcc-toolchain ${LIBCXXABI_GCC_TOOLCHAIN}") add_target_flags_if(LIBCXXABI_SYSROOT "--sysroot=${LIBCXXABI_SYSROOT}") if (LIBCXXABI_TARGET_TRIPLE) set(TARGET_TRIPLE "${LIBCXXABI_TARGET_TRIPLE}") endif() # Configure compiler. Must happen after setting the target flags. include(config-ix) if (LIBCXXABI_HAS_NOSTDINCXX_FLAG) list(APPEND LIBCXXABI_COMPILE_FLAGS -nostdinc++) # Remove -stdlib flags to prevent them from causing an unused flag warning. string(REPLACE "-stdlib=libc++" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}") string(REPLACE "-stdlib=libstdc++" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}") endif() if (LIBCXXABI_USE_COMPILER_RT) list(APPEND LIBCXXABI_LINK_FLAGS "-rtlib=compiler-rt") endif() # Let the library headers know they are currently being used to build the # library. add_definitions(-D_LIBCXXABI_BUILDING_LIBRARY) # Disable DLL annotations on Windows for static builds. if (WIN32 AND LIBCXXABI_ENABLE_STATIC AND NOT LIBCXXABI_ENABLE_SHARED) add_definitions(-D_LIBCXXABI_DISABLE_DLL_IMPORT_EXPORT) endif() append_if(LIBCXXABI_COMPILE_FLAGS LIBCXXABI_HAS_WERROR_FLAG -Werror=return-type) # Get warning flags append_if(LIBCXXABI_COMPILE_FLAGS LIBCXXABI_HAS_W_FLAG -W) append_if(LIBCXXABI_COMPILE_FLAGS LIBCXXABI_HAS_WALL_FLAG -Wall) append_if(LIBCXXABI_COMPILE_FLAGS LIBCXXABI_HAS_WCHAR_SUBSCRIPTS_FLAG -Wchar-subscripts) append_if(LIBCXXABI_COMPILE_FLAGS LIBCXXABI_HAS_WCONVERSION_FLAG -Wconversion) append_if(LIBCXXABI_COMPILE_FLAGS LIBCXXABI_HAS_WMISMATCHED_TAGS_FLAG -Wmismatched-tags) append_if(LIBCXXABI_COMPILE_FLAGS LIBCXXABI_HAS_WMISSING_BRACES_FLAG -Wmissing-braces) append_if(LIBCXXABI_COMPILE_FLAGS LIBCXXABI_HAS_WNEWLINE_EOF_FLAG -Wnewline-eof) append_if(LIBCXXABI_COMPILE_FLAGS LIBCXXABI_HAS_WNO_UNUSED_FUNCTION_FLAG -Wno-unused-function) append_if(LIBCXXABI_COMPILE_FLAGS LIBCXXABI_HAS_WSHADOW_FLAG -Wshadow) append_if(LIBCXXABI_COMPILE_FLAGS LIBCXXABI_HAS_WSHORTEN_64_TO_32_FLAG -Wshorten-64-to-32) append_if(LIBCXXABI_COMPILE_FLAGS LIBCXXABI_HAS_WSIGN_COMPARE_FLAG -Wsign-compare) append_if(LIBCXXABI_COMPILE_FLAGS LIBCXXABI_HAS_WSIGN_CONVERSION_FLAG -Wsign-conversion) append_if(LIBCXXABI_COMPILE_FLAGS LIBCXXABI_HAS_WSTRICT_ALIASING_FLAG -Wstrict-aliasing=2) append_if(LIBCXXABI_COMPILE_FLAGS LIBCXXABI_HAS_WSTRICT_OVERFLOW_FLAG -Wstrict-overflow=4) append_if(LIBCXXABI_COMPILE_FLAGS LIBCXXABI_HAS_WUNUSED_PARAMETER_FLAG -Wunused-parameter) append_if(LIBCXXABI_COMPILE_FLAGS LIBCXXABI_HAS_WUNUSED_VARIABLE_FLAG -Wunused-variable) append_if(LIBCXXABI_COMPILE_FLAGS LIBCXXABI_HAS_WWRITE_STRINGS_FLAG -Wwrite-strings) append_if(LIBCXXABI_COMPILE_FLAGS LIBCXXABI_HAS_WUNDEF_FLAG -Wundef) if (LIBCXXABI_ENABLE_WERROR) append_if(LIBCXXABI_COMPILE_FLAGS LIBCXXABI_HAS_WERROR_FLAG -Werror) append_if(LIBCXXABI_COMPILE_FLAGS LIBCXXABI_HAS_WX_FLAG -WX) else() append_if(LIBCXXABI_COMPILE_FLAGS LIBCXXABI_HAS_WNO_ERROR_FLAG -Wno-error) append_if(LIBCXXABI_COMPILE_FLAGS LIBCXXABI_HAS_NO_WX_FLAG -WX-) endif() if (LIBCXXABI_ENABLE_PEDANTIC) append_if(LIBCXXABI_COMPILE_FLAGS LIBCXXABI_HAS_PEDANTIC_FLAG -pedantic) endif() # Get feature flags. append_if(LIBCXXABI_CXX_FLAGS LIBCXXABI_HAS_FSTRICT_ALIASING_FLAG -fstrict-aliasing) # Exceptions if (LIBCXXABI_ENABLE_EXCEPTIONS) # Catches C++ exceptions only and tells the compiler to assume that extern C # functions never throw a C++ exception. append_if(LIBCXXABI_CXX_FLAGS LIBCXXABI_HAS_EHSC_FLAG -EHsc) append_if(LIBCXXABI_C_FLAGS LIBCXXABI_HAS_FUNWIND_TABLES -funwind-tables) else() add_definitions(-D_LIBCXXABI_NO_EXCEPTIONS) append_if(LIBCXXABI_CXX_FLAGS LIBCXXABI_HAS_NO_EXCEPTIONS_FLAG -fno-exceptions) append_if(LIBCXXABI_CXX_FLAGS LIBCXXABI_HAS_NO_EHS_FLAG -EHs-) append_if(LIBCXXABI_CXX_FLAGS LIBCXXABI_HAS_NO_EHA_FLAG -EHa-) endif() # Assert string(TOUPPER "${CMAKE_BUILD_TYPE}" uppercase_CMAKE_BUILD_TYPE) if (LIBCXXABI_ENABLE_ASSERTIONS) # MSVC doesn't like _DEBUG on release builds. See PR 4379. if (NOT MSVC) list(APPEND LIBCXXABI_COMPILE_FLAGS -D_DEBUG) endif() # On Release builds cmake automatically defines NDEBUG, so we # explicitly undefine it: if (uppercase_CMAKE_BUILD_TYPE STREQUAL "RELEASE") list(APPEND LIBCXXABI_COMPILE_FLAGS -UNDEBUG) endif() else() if (NOT uppercase_CMAKE_BUILD_TYPE STREQUAL "RELEASE") list(APPEND LIBCXXABI_COMPILE_FLAGS -DNDEBUG) endif() endif() # Static library if (NOT LIBCXXABI_ENABLE_SHARED) list(APPEND LIBCXXABI_COMPILE_FLAGS -D_LIBCPP_BUILD_STATIC) endif() # Threading if (NOT LIBCXXABI_ENABLE_THREADS) if (LIBCXXABI_HAS_PTHREAD_API) message(FATAL_ERROR "LIBCXXABI_HAS_PTHREAD_API can only" " be set to ON when LIBCXXABI_ENABLE_THREADS" " is also set to ON.") endif() if (LIBCXXABI_HAS_EXTERNAL_THREAD_API) message(FATAL_ERROR "LIBCXXABI_HAS_EXTERNAL_THREAD_API can only" " be set to ON when LIBCXXABI_ENABLE_THREADS" " is also set to ON.") endif() if (LIBCXXABI_BUILD_EXTERNAL_THREAD_LIBRARY) message(FATAL_ERROR "LIBCXXABI_BUILD_EXTERNAL_THREAD_LIBRARY can only" " be set to ON when LIBCXXABI_ENABLE_THREADS" " is also set to ON.") endif() add_definitions(-D_LIBCXXABI_HAS_NO_THREADS) endif() if (LIBCXXABI_HAS_EXTERNAL_THREAD_API) if (LIBCXXABI_HAS_PTHREAD_API) message(FATAL_ERROR "The options LIBCXXABI_HAS_EXTERNAL_THREAD_API" " and LIBCXXABI_HAS_PTHREAD_API cannot be both" " set to ON at the same time.") endif() if (LIBCXXABI_BUILD_EXTERNAL_THREAD_LIBRARY) message(FATAL_ERROR "The options LIBCXXABI_BUILD_EXTERNAL_THREAD_LIBRARY" " and LIBCXXABI_HAS_EXTERNAL_THREAD_API cannot be both" " set to ON at the same time.") endif() endif() if (LIBCXXABI_BUILD_EXTERNAL_THREAD_LIBRARY AND LIBCXXABI_ENABLE_SHARED) # Need to allow unresolved symbols if this is to work with shared library builds if (APPLE) add_link_flags("-undefined dynamic_lookup") else() # Relax this restriction from HandleLLVMOptions string(REPLACE "-Wl,-z,defs" "" CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS}") endif() endif() if (LIBCXXABI_HAS_PTHREAD_API) add_definitions(-D_LIBCPP_HAS_THREAD_API_PTHREAD) endif() if (LIBCXXABI_HAS_EXTERNAL_THREAD_API) add_definitions(-D_LIBCPP_HAS_THREAD_API_EXTERNAL) endif() if (LIBCXXABI_BUILD_EXTERNAL_THREAD_LIBRARY) add_definitions(-D_LIBCPP_HAS_THREAD_LIBRARY_EXTERNAL) endif() if (MSVC) add_definitions(-D_CRT_SECURE_NO_WARNINGS) endif() # Define LIBCXXABI_USE_LLVM_UNWINDER for conditional compilation. if (LIBCXXABI_USE_LLVM_UNWINDER) add_definitions(-DLIBCXXABI_USE_LLVM_UNWINDER=1) endif() if (LIBCXXABI_SILENT_TERMINATE) add_definitions(-DLIBCXXABI_SILENT_TERMINATE=1) endif() string(REPLACE ";" " " LIBCXXABI_CXX_FLAGS "${LIBCXXABI_CXX_FLAGS}") set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${LIBCXXABI_CXX_FLAGS}") set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${LIBCXXABI_C_FLAGS}") #=============================================================================== # Setup Source Code #=============================================================================== set(LIBCXXABI_LIBUNWIND_INCLUDES "${LIBCXXABI_LIBUNWIND_INCLUDES}" CACHE PATH "Specify path to libunwind includes." FORCE) set(LIBCXXABI_LIBUNWIND_PATH "${LIBCXXABI_LIBUNWIND_PATH}" CACHE PATH "Specify path to libunwind source." FORCE) include_directories(include) if (LIBCXXABI_USE_LLVM_UNWINDER OR LLVM_NATIVE_ARCH MATCHES ARM) find_path( LIBCXXABI_LIBUNWIND_INCLUDES_INTERNAL libunwind.h PATHS ${LIBCXXABI_LIBUNWIND_INCLUDES} ${LIBCXXABI_LIBUNWIND_PATH}/include ${CMAKE_BINARY_DIR}/${LIBCXXABI_LIBUNWIND_INCLUDES} ${LLVM_MAIN_SRC_DIR}/projects/libunwind/include ${LLVM_MAIN_SRC_DIR}/runtimes/libunwind/include NO_DEFAULT_PATH ) find_path( LIBCXXABI_LIBUNWIND_SOURCES libunwind_ext.h PATHS ${LIBCXXABI_LIBUNWIND_PATH}/src/ ${LIBCXXABI_LIBUNWIND_INCLUDES}/../src/ ${LLVM_MAIN_SRC_DIR}/projects/libunwind/src/ ${LLVM_MAIN_SRC_DIR}/runtimes/libunwind/src/ NO_DEFAULT_PATH ) if (LIBCXXABI_LIBUNWIND_SOURCES STREQUAL "LIBCXXABI_LIBUNWIND_SOURCES-NOTFOUND") message(WARNING "LIBCXXABI_LIBUNWIND_SOURCES was not specified and couldn't be infered.") set(LIBCXXABI_LIBUNWIND_SOURCES "") endif() if (NOT LIBCXXABI_LIBUNWIND_INCLUDES_INTERNAL STREQUAL "LIBCXXABI_LIBUNWIND_INCLUDES_INTERNAL-NOTFOUND") include_directories("${LIBCXXABI_LIBUNWIND_INCLUDES_INTERNAL}") endif() if (NOT LIBCXXABI_LIBUNWIND_SOURCES STREQUAL "") include_directories("${LIBCXXABI_LIBUNWIND_SOURCES}") endif() endif() # Add source code. This also contains all of the logic for deciding linker flags # soname, etc... add_subdirectory(src) if (NOT LIBCXXABI_INCLUDE_TESTS OR (LIBCXXABI_STANDALONE_BUILD AND NOT LIBCXXABI_ENABLE_SHARED)) # We can't reasonably test the system C++ library with a static libc++abi. # We either need to be able to replace libc++abi at run time (with a shared # libc++abi), or we need to be able to replace the C++ runtime (with a non- # standalone build). message(WARNING "The libc++abi tests aren't valid when libc++abi is built " "standalone (i.e. outside of llvm/projects/libcxxabi ) and " "is built without a shared library. Either build a shared " "library, build libc++abi at the same time as you build " "libc++, or do without testing. No check target will be " "available!") else() add_subdirectory(test) add_subdirectory(fuzz) endif()