| # See www/CMake.html for instructions on how to build libcxxabi with CMake. |
| |
| if (NOT IS_DIRECTORY "${CMAKE_CURRENT_LIST_DIR}/../libcxx") |
| message(FATAL_ERROR "libc++abi now requires being built in a monorepo layout with libcxx available") |
| endif() |
| |
| #=============================================================================== |
| # Setup Project |
| #=============================================================================== |
| |
| cmake_minimum_required(VERSION 3.13.4) |
| |
| set(LLVM_COMMON_CMAKE_UTILS "${CMAKE_CURRENT_SOURCE_DIR}/../cmake") |
| |
| # Add path for custom modules |
| list(INSERT CMAKE_MODULE_PATH 0 |
| "${CMAKE_CURRENT_SOURCE_DIR}/cmake" |
| "${CMAKE_CURRENT_SOURCE_DIR}/cmake/Modules" |
| "${LLVM_COMMON_CMAKE_UTILS}" |
| "${LLVM_COMMON_CMAKE_UTILS}/Modules" |
| ) |
| |
| set(CMAKE_FOLDER "libc++") |
| |
| set(LIBCXXABI_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}) |
| set(LIBCXXABI_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR}) |
| set(LIBCXXABI_LIBCXX_PATH "${CMAKE_CURRENT_LIST_DIR}/../libcxx" CACHE PATH |
| "Specify path to libc++ source.") |
| |
| if (CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR OR LIBCXXABI_STANDALONE_BUILD) |
| message(FATAL_ERROR "The Standalone build has been deprecated since LLVM 14, and it is not supported anymore. " |
| "Please use one of the ways described at https://libcxx.llvm.org/BuildingLibcxx.html for " |
| "building libc++abi.") |
| |
| project(libcxxabi CXX C) |
| |
| set(PACKAGE_NAME libcxxabi) |
| set(PACKAGE_VERSION 11.0.0git) |
| set(PACKAGE_STRING "${PACKAGE_NAME} ${PACKAGE_VERSION}") |
| set(PACKAGE_BUGREPORT "llvm-bugs@lists.llvm.org") |
| |
| set(LIBCXXABI_STANDALONE_BUILD TRUE) |
| |
| # In a standalone build, we don't have llvm to automatically generate the |
| # llvm-lit script for us. So we need to provide an explicit directory that |
| # the configurator should write the script into. |
| set(LLVM_LIT_OUTPUT_DIR "${LIBCXXABI_BINARY_DIR}/bin") |
| endif() |
| |
| # Must go below project(..) |
| include(GNUInstallDirs) |
| |
| if (LIBCXXABI_STANDALONE_BUILD) |
| # Find the LLVM sources and simulate LLVM CMake options. |
| include(HandleOutOfTreeLLVM) |
| |
| find_package(Python3 COMPONENTS Interpreter) |
| if(NOT Python3_Interpreter_FOUND) |
| message(WARNING "Python3 not found, using python2 as a fallback") |
| find_package(Python2 COMPONENTS Interpreter REQUIRED) |
| if(Python2_VERSION VERSION_LESS 2.7) |
| message(SEND_ERROR "Python 2.7 or newer is required") |
| endif() |
| |
| # Treat python2 as python3 |
| add_executable(Python3::Interpreter IMPORTED) |
| set_target_properties(Python3::Interpreter PROPERTIES |
| IMPORTED_LOCATION ${Python2_EXECUTABLE}) |
| set(Python3_EXECUTABLE ${Python2_EXECUTABLE}) |
| endif() |
| endif() |
| |
| # Require out of source build. |
| include(MacroEnsureOutOfSourceBuild) |
| MACRO_ENSURE_OUT_OF_SOURCE_BUILD( |
| "${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_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_WIN32_THREAD_API "Ignore auto-detection and force use of win32 thread 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_ENABLE_FORGIVING_DYNAMIC_CAST |
| "Make dynamic_cast more forgiving when type_info's mistakenly have hidden \ |
| visibility, and thus multiple type_infos can exist for a single type. \ |
| When the dynamic_cast would normally fail, this option will cause the \ |
| library to try comparing the type_info names to see if they are equal \ |
| instead." OFF) |
| |
| option(LIBCXXABI_ENABLE_NEW_DELETE_DEFINITIONS |
| "Build libc++abi with definitions for operator new/delete. These are normally |
| defined in libc++abi, but it is also possible to define them in libc++, in |
| which case the definition in libc++abi should be turned off." ON) |
| option(LIBCXXABI_BUILD_32_BITS "Build 32 bit multilib libc++abi. This option is not supported anymore when building the runtimes. Please specify a full triple instead." ${LLVM_BUILD_32_BITS}) |
| if (LIBCXXABI_BUILD_32_BITS) |
| message(FATAL_ERROR "LIBCXXABI_BUILD_32_BITS is not supported anymore when building the runtimes, please specify a full triple instead.") |
| endif() |
| |
| 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) |
| |
| if(CMAKE_CXX_COMPILER_TARGET) |
| set(LIBCXXABI_DEFAULT_TARGET_TRIPLE "${CMAKE_CXX_COMPILER_TARGET}") |
| else() |
| set(LIBCXXABI_DEFAULT_TARGET_TRIPLE "${LLVM_DEFAULT_TARGET_TRIPLE}") |
| endif() |
| set(LIBCXXABI_TARGET_TRIPLE "${LIBCXXABI_DEFAULT_TARGET_TRIPLE}" CACHE STRING "Target triple for cross compiling.") |
| set(LIBCXXABI_GCC_TOOLCHAIN "${CMAKE_CXX_COMPILER_EXTERNAL_TOOLCHAIN}" CACHE PATH "GCC toolchain for cross compiling.") |
| set(LIBCXXABI_SYSROOT "${CMAKE_SYSROOT}" CACHE PATH "Sysroot for cross compiling.") |
| |
| set(LIBCXXABI_LIBCXX_LIBRARY_PATH "" CACHE PATH "The path to libc++ library.") |
| set(LIBCXXABI_LIBRARY_VERSION "1.0" CACHE STRING |
| "Version of libc++abi. This will be reflected in the name of the shared \ |
| library produced. For example, -DLIBCXXABI_LIBRARY_VERSION=x.y will \ |
| result in the library being named libc++abi.x.y.dylib, along with the \ |
| usual symlinks pointing to that.") |
| |
| # 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) |
| option(LIBCXXABI_NON_DEMANGLING_TERMINATE "Set this to make the terminate handler |
| avoid demangling" 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() |
| |
| # TODO: This is a workaround for the fact that Standalone builds can't use |
| # targets from the other runtimes (so the cxx-headers target doesn't exist). |
| set(LIBCXXABI_LIBCXX_INCLUDES "" CACHE PATH |
| "Specify path to libc++ includes.") |
| if (LIBCXXABI_STANDALONE_BUILD) |
| if (NOT IS_DIRECTORY ${LIBCXXABI_LIBCXX_INCLUDES}) |
| message(FATAL_ERROR |
| "LIBCXXABI_LIBCXX_INCLUDES=${LIBCXXABI_LIBCXX_INCLUDES} is not a valid directory. " |
| "Please provide the path to where the libc++ headers have been installed.") |
| endif() |
| add_library(cxx-headers INTERFACE) |
| if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC" OR "${CMAKE_CXX_SIMULATE_ID}" STREQUAL "MSVC") |
| target_compile_options(cxx-headers INTERFACE /I "${LIBCXXABI_LIBCXX_INCLUDES}") |
| else() |
| target_compile_options(cxx-headers INTERFACE -I "${LIBCXXABI_LIBCXX_INCLUDES}") |
| endif() |
| endif() |
| |
| option(LIBCXXABI_HERMETIC_STATIC_LIBRARY |
| "Do not export any symbols from the static library." OFF) |
| |
| set(LIBCXXABI_TEST_CONFIG "${CMAKE_CURRENT_SOURCE_DIR}/test/lit.site.cfg.in" CACHE STRING |
| "The path to the Lit testing configuration to use when running the tests. |
| If a relative path is provided, it is assumed to be relative to '<monorepo>/libcxxabi/test/configs'.") |
| if (NOT IS_ABSOLUTE "${LIBCXXABI_TEST_CONFIG}") |
| set(LIBCXXABI_TEST_CONFIG "${CMAKE_CURRENT_SOURCE_DIR}/test/configs/${LIBCXXABI_TEST_CONFIG}") |
| endif() |
| set(LIBCXXABI_TEST_PARAMS "" CACHE STRING |
| "A list of parameters to run the Lit test suite with.") |
| |
| #=============================================================================== |
| # Configure System |
| #=============================================================================== |
| |
| # Add path for custom modules |
| set(CMAKE_MODULE_PATH |
| "${CMAKE_CURRENT_SOURCE_DIR}/cmake" |
| "${CMAKE_CURRENT_SOURCE_DIR}/cmake/Modules" |
| ${CMAKE_MODULE_PATH} |
| ) |
| |
| set(LIBCXXABI_INSTALL_RUNTIME_DIR "${CMAKE_INSTALL_BINDIR}" CACHE PATH |
| "Path where built libc++abi runtime libraries should be installed.") |
| |
| if(LLVM_ENABLE_PER_TARGET_RUNTIME_DIR AND NOT APPLE) |
| set(LIBCXXABI_HEADER_DIR ${LLVM_BINARY_DIR}) |
| set(LIBCXXABI_LIBRARY_DIR ${LLVM_LIBRARY_OUTPUT_INTDIR}/${LLVM_DEFAULT_TARGET_TRIPLE}) |
| set(LIBCXXABI_INSTALL_LIBRARY_DIR lib${LLVM_LIBDIR_SUFFIX}/${LLVM_DEFAULT_TARGET_TRIPLE} CACHE PATH |
| "Path where built libc++abi libraries should be installed.") |
| if(LIBCXX_LIBDIR_SUBDIR) |
| string(APPEND LIBCXXABI_LIBRARY_DIR /${LIBCXXABI_LIBDIR_SUBDIR}) |
| string(APPEND LIBCXXABI_INSTALL_LIBRARY_DIR /${LIBCXXABI_LIBDIR_SUBDIR}) |
| endif() |
| else() |
| if(LLVM_LIBRARY_OUTPUT_INTDIR) |
| set(LIBCXXABI_HEADER_DIR ${LLVM_BINARY_DIR}) |
| set(LIBCXXABI_LIBRARY_DIR ${LLVM_LIBRARY_OUTPUT_INTDIR}) |
| else() |
| set(LIBCXXABI_HEADER_DIR ${CMAKE_BINARY_DIR}) |
| set(LIBCXXABI_LIBRARY_DIR ${CMAKE_BINARY_DIR}/lib${LIBCXXABI_LIBDIR_SUFFIX}) |
| endif() |
| set(LIBCXXABI_INSTALL_LIBRARY_DIR lib${LIBCXXABI_LIBDIR_SUFFIX} CACHE PATH |
| "Path where built libc++abi libraries should be installed.") |
| endif() |
| |
| 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." FORCE) |
| 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 |
| if(ZOS) |
| add_target_flags_if_supported("-fzos-le-char-mode=ebcdic") |
| endif() |
| if(LIBCXXABI_TARGET_TRIPLE) |
| add_target_flags_if_supported("--target=${LIBCXXABI_TARGET_TRIPLE}") |
| endif() |
| if(LIBCXXABI_GCC_TOOLCHAIN) |
| add_target_flags_if_supported("--gcc-toolchain=${LIBCXXABI_GCC_TOOLCHAIN}") |
| endif() |
| if(LIBCXXABI_SYSROOT) |
| add_target_flags_if_supported("--sysroot=${LIBCXXABI_SYSROOT}") |
| endif() |
| |
| # Configure compiler. Must happen after setting the target flags. |
| include(config-ix) |
| |
| if (LIBCXXABI_HAS_NOSTDINCXX_FLAG) |
| list(APPEND LIBCXXABI_COMPILE_FLAGS -nostdinc++) |
| # cmake 3.14 and above remove system include paths that are explicitly |
| # passed on the command line. We build with -nostdinc++ and explicitly add |
| # just the libcxx system include paths with -I on the command line. |
| # Setting CMAKE_CXX_IMPLICIT_INCLUDE_DIRECTORIES effectively prevents cmake |
| # from removing these. |
| # See: https://gitlab.kitware.com/cmake/cmake/issues/19227 |
| set(CMAKE_CXX_IMPLICIT_INCLUDE_DIRECTORIES "") |
| # Remove -stdlib flags to prevent them from causing an unused flag warning. |
| string(REPLACE "--stdlib=libc++" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}") |
| string(REPLACE "--stdlib=libstdc++" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}") |
| string(REPLACE "-stdlib=libc++" "" CMAKE_CXX_FLAGS "${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) |
| |
| # libcxxabi needs to, for various reasons, include the libcpp headers as if |
| # it is being built as part of libcxx. |
| add_definitions(-D_LIBCPP_BUILDING_LIBRARY) |
| |
| # Disable DLL annotations on Windows for static builds. |
| if (WIN32 AND LIBCXXABI_ENABLE_STATIC AND NOT LIBCXXABI_ENABLE_SHARED) |
| if (LIBCXX_ENABLE_SHARED AND LIBCXX_ENABLE_STATIC_ABI_LIBRARY) |
| # Building libcxxabi statically, but intending for it to be statically |
| # linked into a shared libcxx; keep dllexport enabled within libcxxabi, |
| # as the symbols will need to be exported from libcxx. |
| else() |
| # Regular static build; disable dllexports. |
| add_definitions(-D_LIBCXXABI_DISABLE_VISIBILITY_ANNOTATIONS) |
| endif() |
| 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) |
| |
| add_compile_flags_if_supported(-Wno-suggest-override) |
| |
| 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_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() |
| |
| # 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_WIN32_THREAD_API) |
| message(FATAL_ERROR "LIBCXXABI_HAS_WIN32_THREAD_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_HAS_WIN32_THREAD_API) |
| message(FATAL_ERROR "The options LIBCXXABI_HAS_EXTERNAL_THREAD_API" |
| " and LIBCXXABI_HAS_WIN32_THREAD_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_HAS_PTHREAD_API) |
| if (LIBCXXABI_HAS_WIN32_THREAD_API) |
| message(FATAL_ERROR "The options LIBCXXABI_HAS_PTHREAD_API" |
| "and LIBCXXABI_HAS_WIN32_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 "${CMAKE_SHARED_LINKER_FLAGS}") |
| endif() |
| endif() |
| |
| if (LIBCXXABI_HAS_PTHREAD_API) |
| add_definitions(-D_LIBCPP_HAS_THREAD_API_PTHREAD) |
| endif() |
| |
| if (LIBCXXABI_HAS_WIN32_THREAD_API) |
| add_definitions(-D_LIBCPP_HAS_THREAD_API_WIN32) |
| endif() |
| |
| if (LIBCXXABI_HAS_EXTERNAL_THREAD_API) |
| add_definitions(-D_LIBCPP_HAS_THREAD_API_EXTERNAL) |
| endif() |
| |
| if (LIBCXXABI_BUILD_EXTERNAL_THREAD_LIBRARY) |
| add_definitions(-D_LIBCPP_HAS_THREAD_LIBRARY_EXTERNAL) |
| endif() |
| |
| # Prevent libc++abi from having library dependencies on libc++ |
| add_definitions(-D_LIBCPP_DISABLE_EXTERN_TEMPLATE) |
| |
| if (MSVC) |
| add_definitions(-D_CRT_SECURE_NO_WARNINGS) |
| endif() |
| |
| # Define LIBCXXABI_USE_LLVM_UNWINDER for conditional compilation. |
| if (LIBCXXABI_USE_LLVM_UNWINDER) |
| add_definitions(-DLIBCXXABI_USE_LLVM_UNWINDER) |
| endif() |
| |
| if (LIBCXXABI_SILENT_TERMINATE) |
| add_definitions(-DLIBCXXABI_SILENT_TERMINATE) |
| endif() |
| |
| if (LIBCXXABI_NON_DEMANGLING_TERMINATE) |
| add_definitions(-DLIBCXXABI_NON_DEMANGLING_TERMINATE) |
| endif() |
| |
| if (LIBCXXABI_BAREMETAL) |
| add_definitions(-DLIBCXXABI_BAREMETAL) |
| endif() |
| |
| if (LIBCXXABI_HAS_COMMENT_LIB_PRAGMA) |
| if (LIBCXXABI_HAS_PTHREAD_LIB) |
| add_definitions(-D_LIBCXXABI_LINK_PTHREAD_LIB) |
| endif() |
| endif() |
| |
| string(REPLACE ";" " " LIBCXXABI_CXX_FLAGS "${LIBCXXABI_CXX_FLAGS}") |
| set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${LIBCXXABI_CXX_FLAGS}") |
| set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${LIBCXXABI_C_FLAGS}") |
| |
| # On AIX, avoid picking up VMX extensions(i.e. vec_malloc) which would change |
| # the default alignment of the allocators here. |
| if (UNIX AND ${CMAKE_SYSTEM_NAME} MATCHES "AIX") |
| add_definitions("-D_XOPEN_SOURCE=700") |
| endif() |
| |
| #=============================================================================== |
| # Setup Source Code |
| #=============================================================================== |
| |
| set(LIBCXXABI_LIBUNWIND_INCLUDES "${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) |
| add_subdirectory(test) |
| add_subdirectory(fuzz) |
| endif() |
