blob: 9064afbe890f832c4bb3bfe65cc7d691599a4fb1 [file] [log] [blame]
# See www/CMake.html for instructions on how to build libcxxabi with CMake.
#===============================================================================
# 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.")
include(GNUInstallDirs)
# 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_HEADERS "Install the libc++abi headers." ON)
option(LIBCXXABI_INSTALL_LIBRARY "Install the libc++abi library." ON)
set(LIBCXXABI_INSTALL_INCLUDE_DIR "${CMAKE_INSTALL_INCLUDEDIR}/c++/v1" CACHE PATH "Path to install the libc++abi headers at.")
if(LLVM_LIBRARY_OUTPUT_INTDIR)
set(LIBCXXABI_GENERATED_INCLUDE_DIR "${LLVM_BINARY_DIR}/include/c++/v1")
else()
set(LIBCXXABI_GENERATED_INCLUDE_DIR "${CMAKE_BINARY_DIR}/include/c++/v1")
endif()
# TODO: Remove this after branching for LLVM 15
if(LIBCXXABI_SYSROOT OR LIBCXXABI_TARGET_TRIPLE OR LIBCXXABI_GCC_TOOLCHAIN)
message(WARNING "LIBCXXABI_SYSROOT, LIBCXXABI_TARGET_TRIPLE and LIBCXXABI_GCC_TOOLCHAIN are not supported anymore, please use the native CMake equivalents instead")
endif()
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. The problem with testing a static libc++abi
# is that 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" OFF)
cmake_dependent_option(LIBCXXABI_STATICALLY_LINK_UNWINDER_IN_SHARED_LIBRARY
"Statically link the LLVM unwinder to shared library" ON
"LIBCXXABI_ENABLE_STATIC_UNWINDER" 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()
set(LIBCXXABI_LIBCXX_INCLUDES "" CACHE PATH
"Specify path to libc++ includes.")
if (NOT libcxx IN_LIST LLVM_ENABLE_RUNTIMES)
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)
target_include_directories(cxx-headers INTERFACE "${LIBCXXABI_LIBCXX_INCLUDES}")
endif()
set(LIBCXXABI_HERMETIC_STATIC_LIBRARY_DEFAULT OFF)
if (WIN32)
set(LIBCXXABI_HERMETIC_STATIC_LIBRARY_DEFAULT ON)
endif()
option(LIBCXXABI_HERMETIC_STATIC_LIBRARY
"Do not export any symbols from the static library." ${LIBCXXABI_HERMETIC_STATIC_LIBRARY_DEFAULT})
if (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
set(LIBCXXABI_DEFAULT_TEST_CONFIG "llvm-libc++abi-shared-gcc.cfg.in")
elseif(MINGW)
set(LIBCXXABI_DEFAULT_TEST_CONFIG "llvm-libc++abi-mingw.cfg.in")
elseif(WIN32) # clang-cl
if (LIBCXXABI_ENABLE_SHARED)
set(LIBCXXABI_DEFAULT_TEST_CONFIG "llvm-libc++abi-shared-clangcl.cfg.in")
else()
set(LIBCXXABI_DEFAULT_TEST_CONFIG "llvm-libc++abi-static-clangcl.cfg.in")
endif()
else()
if (LIBCXXABI_ENABLE_SHARED)
set(LIBCXXABI_DEFAULT_TEST_CONFIG "llvm-libc++abi-shared.cfg.in")
else()
set(LIBCXXABI_DEFAULT_TEST_CONFIG "llvm-libc++abi-static.cfg.in")
endif()
endif()
set(LIBCXXABI_TEST_CONFIG "${LIBCXXABI_DEFAULT_TEST_CONFIG}" 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()
message(STATUS "Using libc++abi testing configuration: ${LIBCXXABI_TEST_CONFIG}")
set(LIBCXXABI_TEST_PARAMS "" CACHE STRING
"A list of parameters to run the Lit test suite with.")
#===============================================================================
# Configure System
#===============================================================================
# Add path for custom modules
set(CMAKE_MODULE_PATH
"${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 ${LIBCXXABI_LIBRARY_DIR})
# By default, libcxx and libcxxabi share a library directory.
if (NOT LIBCXXABI_LIBCXX_LIBRARY_PATH)
set(LIBCXXABI_LIBCXX_LIBRARY_PATH "${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 (${CMAKE_SYSTEM_NAME} MATCHES "AIX")
add_target_flags_if_supported("-mdefault-visibility-export-mapping=explicit")
set(CMAKE_AIX_EXPORT_ALL_SYMBOLS OFF)
endif()
# Configure compiler. Must happen after setting the target flags.
include(config-ix)
if (CXX_SUPPORTS_NOSTDINCXX_FLAG)
list(APPEND LIBCXXABI_COMPILE_FLAGS -nostdinc++)
# cmake 3.14 and above remove system include paths that are explicitly
# passed on the command line. We build with -nostdinc++ and explicitly add
# just the libcxx system include paths with -I on the command line.
# Setting CMAKE_CXX_IMPLICIT_INCLUDE_DIRECTORIES effectively prevents cmake
# from removing these.
# See: https://gitlab.kitware.com/cmake/cmake/issues/19227
set(CMAKE_CXX_IMPLICIT_INCLUDE_DIRECTORIES "")
# Remove -stdlib flags to prevent them from causing an unused flag warning.
string(REPLACE "--stdlib=libc++" "" CMAKE_CXX_FLAGS "${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)
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 "${CMAKE_SHARED_LINKER_FLAGS}")
endif()
endif()
if (LIBCXXABI_HAS_PTHREAD_API)
add_definitions(-D_LIBCPP_HAS_THREAD_API_PTHREAD)
endif()
if (LIBCXXABI_HAS_WIN32_THREAD_API)
add_definitions(-D_LIBCPP_HAS_THREAD_API_WIN32)
endif()
if (LIBCXXABI_HAS_EXTERNAL_THREAD_API)
add_definitions(-D_LIBCPP_HAS_THREAD_API_EXTERNAL)
endif()
if (LIBCXXABI_BUILD_EXTERNAL_THREAD_LIBRARY)
add_definitions(-D_LIBCPP_HAS_THREAD_LIBRARY_EXTERNAL)
endif()
if (MSVC)
add_definitions(-D_CRT_SECURE_NO_WARNINGS)
endif()
if (LIBCXXABI_SILENT_TERMINATE)
add_definitions(-DLIBCXXABI_SILENT_TERMINATE)
endif()
if (LIBCXXABI_NON_DEMANGLING_TERMINATE)
add_definitions(-DLIBCXXABI_NON_DEMANGLING_TERMINATE)
endif()
if (LIBCXXABI_BAREMETAL)
add_definitions(-DLIBCXXABI_BAREMETAL)
endif()
if (C_SUPPORTS_COMMENT_LIB_PRAGMA)
if (LIBCXXABI_HAS_PTHREAD_LIB)
add_definitions(-D_LIBCXXABI_LINK_PTHREAD_LIB)
endif()
endif()
string(REPLACE ";" " " LIBCXXABI_CXX_FLAGS "${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)
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(include)
add_subdirectory(src)
if (LIBCXXABI_INCLUDE_TESTS)
add_subdirectory(test)
add_subdirectory(fuzz)
endif()