| # See www/CMake.html for instructions on how to build libcxxabi with CMake. |
| |
| #=============================================================================== |
| # Setup Project |
| #=============================================================================== |
| |
| cmake_minimum_required(VERSION 3.4.3) |
| |
| if(POLICY CMP0042) |
| cmake_policy(SET CMP0042 NEW) # Set MACOSX_RPATH=YES by default |
| endif() |
| |
| # Add path for custom modules |
| set(CMAKE_MODULE_PATH |
| "${CMAKE_CURRENT_SOURCE_DIR}/cmake" |
| "${CMAKE_CURRENT_SOURCE_DIR}/cmake/Modules" |
| ${CMAKE_MODULE_PATH} |
| ) |
| |
| if (CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR OR LIBCXXABI_STANDALONE_BUILD) |
| project(libcxxabi CXX C) |
| |
| set(PACKAGE_NAME libcxxabi) |
| set(PACKAGE_VERSION 9.0.1) |
| set(PACKAGE_STRING "${PACKAGE_NAME} ${PACKAGE_VERSION}") |
| set(PACKAGE_BUGREPORT "llvm-bugs@lists.llvm.org") |
| |
| # Find the LLVM sources and simulate LLVM CMake options. |
| include(HandleOutOfTreeLLVM) |
| endif() |
| |
| # Require out of source build. |
| include(MacroEnsureOutOfSourceBuild) |
| MACRO_ENSURE_OUT_OF_SOURCE_BUILD( |
| "${PROJECT_NAME} requires an out of source build. Please create a separate |
| build directory and run 'cmake /path/to/${PROJECT_NAME} [options]' there." |
| ) |
| |
| #=============================================================================== |
| # Setup CMake Options |
| #=============================================================================== |
| include(CMakeDependentOption) |
| include(HandleCompilerRT) |
| |
| # Define options. |
| option(LIBCXXABI_ENABLE_EXCEPTIONS |
| "Provide support for exceptions in the runtime. |
| When disabled, libc++abi does not support stack unwinding and other exceptions-related features." ON) |
| option(LIBCXXABI_ENABLE_ASSERTIONS "Enable assertions independent of build mode." ON) |
| option(LIBCXXABI_ENABLE_PEDANTIC "Compile with pedantic enabled." ON) |
| option(LIBCXXABI_ENABLE_PIC "Build Position-Independent Code, even in static library" 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) |
| |
| # FIXME: This option should default to off. Unfortunatly GCC 4.9 fails to link |
| # programs to due undefined references to new/delete in libc++abi. Once this |
| # has been fixed or worked around the default value should be changed. |
| option(LIBCXXABI_ENABLE_NEW_DELETE_DEFINITIONS |
| "Build libc++abi with definitions for operator new/delete. Normally libc++ |
| provides these definitions" ON) |
| 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." ${LLVM_INCLUDE_TESTS}) |
| set(LIBCXXABI_LIBDIR_SUFFIX "${LLVM_LIBDIR_SUFFIX}" CACHE STRING |
| "Define suffix of library directory name (32/64)") |
| option(LIBCXXABI_INSTALL_LIBRARY "Install the libc++abi library." ON) |
| 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) |
| |
| cmake_dependent_option(LIBCXXABI_INSTALL_STATIC_LIBRARY |
| "Install the static libc++abi library." ON |
| "LIBCXXABI_ENABLE_STATIC;LIBCXXABI_INSTALL_LIBRARY" OFF) |
| cmake_dependent_option(LIBCXXABI_INSTALL_SHARED_LIBRARY |
| "Install the shared libc++abi library." ON |
| "LIBCXXABI_ENABLE_SHARED;LIBCXXABI_INSTALL_LIBRARY" OFF) |
| |
| cmake_dependent_option(LIBCXXABI_STATICALLY_LINK_UNWINDER_IN_STATIC_LIBRARY |
| "Statically link the LLVM unwinder to static library" ON |
| "LIBCXXABI_ENABLE_STATIC_UNWINDER;LIBCXXABI_ENABLE_STATIC" OFF) |
| cmake_dependent_option(LIBCXXABI_STATICALLY_LINK_UNWINDER_IN_SHARED_LIBRARY |
| "Statically link the LLVM unwinder to shared library" ON |
| "LIBCXXABI_ENABLE_STATIC_UNWINDER;LIBCXXABI_ENABLE_SHARED" OFF) |
| |
| option(LIBCXXABI_BAREMETAL "Build libc++abi for baremetal targets." OFF) |
| # The default terminate handler attempts to demangle uncaught exceptions, which |
| # causes extra I/O and demangling code to be pulled in. |
| option(LIBCXXABI_SILENT_TERMINATE "Set this to make the terminate handler default to a silent alternative" OFF) |
| |
| 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" |
| "${LLVM_MAIN_SRC_DIR}/runtimes/libcxx" |
| "${LLVM_MAIN_SRC_DIR}/../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 |
| __config |
| PATHS ${LIBCXXABI_LIBCXX_INCLUDES} |
| ${LIBCXXABI_LIBCXX_PATH}/include |
| ${CMAKE_BINARY_DIR}/${LIBCXXABI_LIBCXX_INCLUDES} |
| ${LIBCXXABI_LIBCXX_INCLUDE_DIRS} |
| ${LLVM_INCLUDE_DIR}/c++/v1 |
| NO_DEFAULT_PATH |
| NO_CMAKE_FIND_ROOT_PATH |
| ) |
| |
| set(LIBCXXABI_LIBCXX_INCLUDES "${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}/../ |
| ${LIBCXXABI_LIBCXX_SRC_DIRS} |
| NO_DEFAULT_PATH |
| NO_CMAKE_FIND_ROOT_PATH |
| ) |
| |
| if (LIBCXXABI_LIBCXX_PATH STREQUAL "LIBCXXABI_LIBCXX_PATH-NOTFOUND") |
| message(WARNING "LIBCXXABI_LIBCXX_PATH was not specified and couldn't be infered.") |
| set(LIBCXXABI_LIBCXX_PATH "") |
| endif() |
| |
| set(LIBCXXABI_LIBCXX_PATH "${LIBCXXABI_LIBCXX_PATH}" CACHE PATH |
| "Specify path to libc++ source." FORCE) |
| |
| option(LIBCXXABI_HERMETIC_STATIC_LIBRARY |
| "Do not export any symbols from the static library." OFF) |
| |
| #=============================================================================== |
| # 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}) |
| |
| string(REGEX MATCH "[0-9]+\\.[0-9]+(\\.[0-9]+)?" CLANG_VERSION |
| ${PACKAGE_VERSION}) |
| |
| if(LLVM_ENABLE_PER_TARGET_RUNTIME_DIR AND NOT APPLE) |
| set(LIBCXXABI_LIBRARY_DIR ${LLVM_LIBRARY_OUTPUT_INTDIR}/${LLVM_DEFAULT_TARGET_TRIPLE}/c++) |
| set(LIBCXXABI_INSTALL_LIBRARY_DIR lib${LLVM_LIBDIR_SUFFIX}/${LLVM_DEFAULT_TARGET_TRIPLE}/c++) |
| if(LIBCXX_LIBDIR_SUBDIR) |
| string(APPEND LIBCXXABI_LIBRARY_DIR /${LIBCXXABI_LIBDIR_SUBDIR}) |
| string(APPEND LIBCXXABI_INSTALL_LIBRARY_DIR /${LIBCXXABI_LIBDIR_SUBDIR}) |
| endif() |
| elseif(LLVM_LIBRARY_OUTPUT_INTDIR) |
| set(LIBCXXABI_LIBRARY_DIR ${LLVM_LIBRARY_OUTPUT_INTDIR}) |
| set(LIBCXXABI_INSTALL_LIBRARY_DIR lib${LIBCXXABI_LIBDIR_SUFFIX}) |
| else() |
| set(LIBCXXABI_LIBRARY_DIR ${CMAKE_BINARY_DIR}/lib${LIBCXXABI_LIBDIR_SUFFIX}) |
| set(LIBCXXABI_INSTALL_LIBRARY_DIR lib${LIBCXXABI_LIBDIR_SUFFIX}) |
| endif() |
| |
| set(LIBCXXABI_INSTALL_PREFIX "" CACHE STRING "Define libc++abi destination prefix.") |
| |
| set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${LIBCXXABI_LIBRARY_DIR}) |
| set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${LIBCXXABI_LIBRARY_DIR}) |
| set(CMAKE_RUNTIME_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() |
| |
| # Declare libc++abi configuration variables. |
| # They are intended for use as follows: |
| # LIBCXXABI_C_FLAGS: General flags for both the c++ compiler and linker. |
| # LIBCXXABI_CXX_FLAGS: General flags for both the c++ compiler and linker. |
| # LIBCXXABI_COMPILE_FLAGS: Compile only flags. |
| # LIBCXXABI_LINK_FLAGS: Linker only flags. |
| # LIBCXXABI_LIBRARIES: libraries libc++abi is linked to. |
| |
| set(LIBCXXABI_C_FLAGS "") |
| set(LIBCXXABI_CXX_FLAGS "") |
| set(LIBCXXABI_COMPILE_FLAGS "") |
| set(LIBCXXABI_LINK_FLAGS "") |
| set(LIBCXXABI_LIBRARIES "") |
| |
| # Include macros for adding and removing libc++abi flags. |
| include(HandleLibcxxabiFlags) |
| |
| #=============================================================================== |
| # Setup Compiler Flags |
| #=============================================================================== |
| |
| # Configure target flags |
| add_target_flags_if(LIBCXXABI_BUILD_32_BITS "-m32") |
| |
| if(LIBCXXABI_TARGET_TRIPLE) |
| add_target_flags("--target=${LIBCXXABI_TARGET_TRIPLE}") |
| elseif(CMAKE_CXX_COMPILER_TARGET) |
| set(LIBCXXABI_TARGET_TRIPLE "${CMAKE_CXX_COMPILER_TARGET}") |
| endif() |
| if(LIBCXX_GCC_TOOLCHAIN) |
| add_target_flags("--gcc-toolchain=${LIBCXXABI_GCC_TOOLCHAIN}") |
| elseif(CMAKE_CXX_COMPILER_EXTERNAL_TOOLCHAIN) |
| set(LIBCXXABI_GCC_TOOLCHAIN "${CMAKE_CXX_COMPILER_EXTERNAL_TOOLCHAIN}") |
| endif() |
| if(LIBCXXABI_SYSROOT) |
| add_target_flags("--sysroot=${LIBCXXABI_SYSROOT}") |
| elseif(CMAKE_SYSROOT) |
| set(LIBCXXABI_SYSROOT "${CMAKE_SYSROOT}") |
| endif() |
| |
| 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() |
| |
| # 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_VISIBILITY_ANNOTATIONS) |
| endif() |
| |
| add_compile_flags_if_supported(-Werror=return-type) |
| |
| # Get warning flags |
| add_compile_flags_if_supported(-W) |
| add_compile_flags_if_supported(-Wall) |
| add_compile_flags_if_supported(-Wchar-subscripts) |
| add_compile_flags_if_supported(-Wconversion) |
| add_compile_flags_if_supported(-Wmismatched-tags) |
| add_compile_flags_if_supported(-Wmissing-braces) |
| add_compile_flags_if_supported(-Wnewline-eof) |
| add_compile_flags_if_supported(-Wunused-function) |
| add_compile_flags_if_supported(-Wshadow) |
| add_compile_flags_if_supported(-Wshorten-64-to-32) |
| add_compile_flags_if_supported(-Wsign-compare) |
| add_compile_flags_if_supported(-Wsign-conversion) |
| add_compile_flags_if_supported(-Wstrict-aliasing=2) |
| add_compile_flags_if_supported(-Wstrict-overflow=4) |
| add_compile_flags_if_supported(-Wunused-parameter) |
| add_compile_flags_if_supported(-Wunused-variable) |
| add_compile_flags_if_supported(-Wwrite-strings) |
| add_compile_flags_if_supported(-Wundef) |
| |
| if (LIBCXXABI_ENABLE_WERROR) |
| add_compile_flags_if_supported(-Werror) |
| add_compile_flags_if_supported(-WX) |
| else() |
| add_compile_flags_if_supported(-Wno-error) |
| add_compile_flags_if_supported(-WX-) |
| endif() |
| if (LIBCXXABI_ENABLE_PEDANTIC) |
| add_compile_flags_if_supported(-pedantic) |
| endif() |
| |
| # Get feature flags. |
| add_compile_flags_if_supported(-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. |
| add_compile_flags_if_supported(-EHsc) |
| # Do we really need to be run through the C compiler ? |
| add_c_compile_flags_if_supported(-funwind-tables) |
| else() |
| add_definitions(-D_LIBCXXABI_NO_EXCEPTIONS) |
| add_compile_flags_if_supported(-fno-exceptions) |
| add_compile_flags_if_supported(-EHs-) |
| add_compile_flags_if_supported(-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 (LLVM_ENABLE_MODULES) |
| # Ignore that the rest of the modules flags are now unused. |
| add_compile_flags_if_supported(-Wno-unused-command-line-argument) |
| add_compile_flags(-fno-modules) |
| endif() |
| |
| set(LIBCXXABI_HAS_UNDEFINED_SYMBOLS OFF) |
| if ((NOT LIBCXXABI_ENABLE_NEW_DELETE_DEFINITIONS) |
| OR (LIBCXXABI_BUILD_EXTERNAL_THREAD_LIBRARY AND LIBCXXABI_ENABLE_SHARED) |
| OR MINGW) |
| set(LIBCXXABI_HAS_UNDEFINED_SYMBOLS ON) |
| endif() |
| |
| if (LIBCXXABI_HAS_UNDEFINED_SYMBOLS) |
| # Need to allow unresolved symbols if this is to work with shared library builds |
| if (APPLE) |
| list(APPEND LIBCXXABI_LINK_FLAGS "-undefined dynamic_lookup") |
| else() |
| # Relax this restriction from HandleLLVMOptions |
| string(REPLACE "-Wl,-z,defs" "" CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS}") |
| endif() |
| endif() |
| |
| if (LIBCXXABI_HAS_PTHREAD_API) |
| add_definitions(-D_LIBCPP_HAS_THREAD_API_PTHREAD) |
| endif() |
| |
| if (LIBCXXABI_HAS_EXTERNAL_THREAD_API) |
| add_definitions(-D_LIBCPP_HAS_THREAD_API_EXTERNAL) |
| endif() |
| |
| if (LIBCXXABI_BUILD_EXTERNAL_THREAD_LIBRARY) |
| add_definitions(-D_LIBCPP_HAS_THREAD_LIBRARY_EXTERNAL) |
| endif() |
| |
| # Prevent libc++abi from having library dependencies on libc++ |
| add_definitions(-D_LIBCPP_DISABLE_EXTERN_TEMPLATE) |
| |
| # Bring back `std::unexpected`, which is removed in C++17, to support |
| # pre-C++17. |
| add_definitions(-D_LIBCPP_ENABLE_CXX17_REMOVED_UNEXPECTED_FUNCTIONS) |
| |
| if (MSVC) |
| add_definitions(-D_CRT_SECURE_NO_WARNINGS) |
| endif() |
| |
| # Define LIBCXXABI_USE_LLVM_UNWINDER for conditional compilation. |
| if (LIBCXXABI_USE_LLVM_UNWINDER) |
| add_definitions(-DLIBCXXABI_USE_LLVM_UNWINDER) |
| endif() |
| |
| if (LIBCXXABI_SILENT_TERMINATE) |
| add_definitions(-DLIBCXXABI_SILENT_TERMINATE) |
| endif() |
| |
| if (LIBCXXABI_BAREMETAL) |
| add_definitions(-DLIBCXXABI_BAREMETAL) |
| endif() |
| |
| if (LIBCXXABI_HAS_COMMENT_LIB_PRAGMA) |
| add_definitions(-D_LIBCXXABI_HAS_COMMENT_LIB_PRAGMA) |
| endif() |
| |
| string(REPLACE ";" " " LIBCXXABI_CXX_FLAGS "${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 |
| ${LLVM_MAIN_SRC_DIR}/../libunwind/include |
| NO_DEFAULT_PATH |
| NO_CMAKE_FIND_ROOT_PATH |
| ) |
| |
| if (LIBCXXABI_LIBUNWIND_INCLUDES_INTERNAL STREQUAL "LIBCXXABI_LIBUNWIND_INCLUDES_INTERNAL-NOTFOUND") |
| set(LIBCXXABI_LIBUNWIND_INCLUDES_INTERNAL "") |
| endif() |
| |
| if (NOT LIBCXXABI_LIBUNWIND_INCLUDES_INTERNAL STREQUAL "") |
| include_directories("${LIBCXXABI_LIBUNWIND_INCLUDES_INTERNAL}") |
| endif() |
| endif() |
| |
| # Add source code. This also contains all of the logic for deciding linker flags |
| # soname, etc... |
| add_subdirectory(src) |
| |
| if (LIBCXXABI_INCLUDE_TESTS) |
| if (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() |
| endif() |