eb6e2eac6c
This patch adds the working parts of r243503. The difference with this patch is that it doesn't include the HandleLLVMOptions.cmake file. git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@243698 91177308-0d34-0410-b5e6-96231b3b80d8
119 lines
4.1 KiB
CMake
119 lines
4.1 KiB
CMake
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#===============================================================================
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# Add an ABI library if appropriate
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#===============================================================================
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#
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# _setup_abi: Set up the build to use an ABI library
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#
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# Parameters:
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# abidefines: A list of defines needed to compile libc++ with the ABI library
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# abilib : The ABI library to link against.
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# abifiles : A list of files (which may be relative paths) to copy into the
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# libc++ build tree for the build. These files will also be
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# installed alongside the libc++ headers.
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# abidirs : A list of relative paths to create under an include directory
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# in the libc++ build directory.
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#
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macro(setup_abi_lib abidefines abilib abifiles abidirs)
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list(APPEND LIBCXX_COMPILE_FLAGS ${abidefines})
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set(LIBCXX_CXX_ABI_INCLUDE_PATHS "${LIBCXX_CXX_ABI_INCLUDE_PATHS}"
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CACHE PATH
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"Paths to C++ ABI header directories separated by ';'." FORCE
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)
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set(LIBCXX_CXX_ABI_LIBRARY ${abilib})
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set(LIBCXX_ABILIB_FILES ${abifiles})
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file(MAKE_DIRECTORY "${CMAKE_BINARY_DIR}/include")
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foreach(_d ${abidirs})
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file(MAKE_DIRECTORY "${CMAKE_BINARY_DIR}/include/${_d}")
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endforeach()
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foreach(fpath ${LIBCXX_ABILIB_FILES})
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set(found FALSE)
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foreach(incpath ${LIBCXX_CXX_ABI_INCLUDE_PATHS})
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if (EXISTS "${incpath}/${fpath}")
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set(found TRUE)
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get_filename_component(dstdir ${fpath} PATH)
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get_filename_component(ifile ${fpath} NAME)
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file(COPY "${incpath}/${fpath}"
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DESTINATION "${CMAKE_BINARY_DIR}/include/${dstdir}"
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)
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install(FILES "${CMAKE_BINARY_DIR}/include/${fpath}"
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DESTINATION include/c++/v1/${dstdir}
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PERMISSIONS OWNER_READ OWNER_WRITE GROUP_READ WORLD_READ
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)
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list(APPEND abilib_headers "${CMAKE_BINARY_DIR}/include/${fpath}")
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endif()
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endforeach()
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if (NOT found)
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message(WARNING "Failed to find ${fpath}")
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endif()
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endforeach()
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add_custom_target(LIBCXX_CXX_ABI_DEPS DEPENDS ${abilib_headers})
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include_directories("${CMAKE_BINARY_DIR}/include")
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endmacro()
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# Setup the default options if LIBCXX_CXX_ABI is not specified.
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if (NOT LIBCXX_CXX_ABI)
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if (NOT DEFINED LIBCXX_BUILT_STANDALONE AND
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IS_DIRECTORY "${CMAKE_SOURCE_DIR}/projects/libcxxabi")
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set(LIBCXX_CXX_ABI_LIBNAME "libcxxabi")
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set(LIBCXX_CXX_ABI_INCLUDE_PATHS "${CMAKE_SOURCE_DIR}/projects/libcxxabi/include")
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set(LIBCXX_CXX_ABI_INTREE 1)
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else ()
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set(LIBCXX_CXX_ABI_LIBNAME "none")
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endif ()
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else ()
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set(LIBCXX_CXX_ABI_LIBNAME "${LIBCXX_CXX_ABI}")
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endif ()
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# Configure based on the selected ABI library.
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if ("${LIBCXX_CXX_ABI_LIBNAME}" STREQUAL "libstdc++" OR
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"${LIBCXX_CXX_ABI_LIBNAME}" STREQUAL "libsupc++")
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set(_LIBSUPCXX_INCLUDE_FILES
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cxxabi.h bits/c++config.h bits/os_defines.h bits/cpu_defines.h
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bits/cxxabi_tweaks.h bits/cxxabi_forced.h
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)
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if ("${LIBCXX_CXX_ABI_LIBNAME}" STREQUAL "libstdc++")
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set(_LIBSUPCXX_DEFINES "-DLIBSTDCXX")
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set(_LIBSUPCXX_LIBNAME stdc++)
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else()
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set(_LIBSUPCXX_DEFINES "")
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set(_LIBSUPCXX_LIBNAME supc++)
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endif()
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setup_abi_lib(
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"-D__GLIBCXX__ ${_LIBSUPCXX_DEFINES}"
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"${_LIBSUPCXX_LIBNAME}" "${_LIBSUPCXX_INCLUDE_FILES}" "bits"
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)
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elseif ("${LIBCXX_CXX_ABI_LIBNAME}" STREQUAL "libcxxabi")
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if (LIBCXX_CXX_ABI_INTREE)
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# Link against just-built "cxxabi" target.
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if (LIBCXX_ENABLE_STATIC_ABI_LIBRARY)
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set(CXXABI_LIBNAME cxxabi_static)
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else()
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set(CXXABI_LIBNAME cxxabi_shared)
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endif()
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set(LIBCXX_LIBCPPABI_VERSION "2" PARENT_SCOPE)
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else()
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# Assume c++abi is installed in the system, rely on -lc++abi link flag.
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set(CXXABI_LIBNAME "c++abi")
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endif()
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setup_abi_lib("-DLIBCXX_BUILDING_LIBCXXABI"
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${CXXABI_LIBNAME} "cxxabi.h;__cxxabi_config.h" ""
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)
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elseif ("${LIBCXX_CXX_ABI_LIBNAME}" STREQUAL "libcxxrt")
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setup_abi_lib("-DLIBCXXRT"
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"cxxrt" "cxxabi.h;unwind.h;unwind-arm.h;unwind-itanium.h" ""
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)
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elseif (NOT "${LIBCXX_CXX_ABI_LIBNAME}" STREQUAL "none")
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message(FATAL_ERROR
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"Currently libstdc++, libsupc++, libcxxabi, libcxxrt and none are "
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"supported for c++ abi."
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)
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endif ()
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