You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
136 lines
5.1 KiB
CMake
136 lines
5.1 KiB
CMake
|
|
#===============================================================================
|
|
# Add an ABI library if appropriate
|
|
#===============================================================================
|
|
|
|
#
|
|
# _setup_abi: Set up the build to use an ABI library
|
|
#
|
|
# Parameters:
|
|
# abidefines: A list of defines needed to compile libc++ with the ABI library
|
|
# abishared : The shared ABI library to link against.
|
|
# abistatic : The static ABI library to link against.
|
|
# abifiles : A list of files (which may be relative paths) to copy into the
|
|
# libc++ build tree for the build. These files will be copied
|
|
# twice: once into include/, so the libc++ build itself can find
|
|
# them, and once into include/c++/v1, so that a clang built into
|
|
# the same build area will find them. These files will also be
|
|
# installed alongside the libc++ headers.
|
|
# abidirs : A list of relative paths to create under an include directory
|
|
# in the libc++ build directory.
|
|
#
|
|
|
|
macro(setup_abi_lib abidefines abishared abistatic abifiles abidirs)
|
|
list(APPEND LIBCXX_COMPILE_FLAGS ${abidefines})
|
|
set(LIBCXX_CXX_ABI_INCLUDE_PATHS "${LIBCXX_CXX_ABI_INCLUDE_PATHS}"
|
|
CACHE PATH
|
|
"Paths to C++ ABI header directories separated by ';'." FORCE
|
|
)
|
|
set(LIBCXX_CXX_ABI_LIBRARY_PATH "${LIBCXX_CXX_ABI_LIBRARY_PATH}"
|
|
CACHE PATH
|
|
"Paths to C++ ABI library directory"
|
|
)
|
|
set(LIBCXX_CXX_SHARED_ABI_LIBRARY ${abishared})
|
|
set(LIBCXX_CXX_STATIC_ABI_LIBRARY ${abistatic})
|
|
set(LIBCXX_ABILIB_FILES ${abifiles})
|
|
|
|
foreach(fpath ${LIBCXX_ABILIB_FILES})
|
|
set(found FALSE)
|
|
foreach(incpath ${LIBCXX_CXX_ABI_INCLUDE_PATHS})
|
|
if (EXISTS "${incpath}/${fpath}")
|
|
set(found TRUE)
|
|
get_filename_component(dstdir ${fpath} PATH)
|
|
get_filename_component(ifile ${fpath} NAME)
|
|
set(src ${incpath}/${fpath})
|
|
|
|
set(dst ${LIBCXX_BINARY_INCLUDE_DIR}/${dstdir}/${ifile})
|
|
add_custom_command(OUTPUT ${dst}
|
|
DEPENDS ${src}
|
|
COMMAND ${CMAKE_COMMAND} -E copy_if_different ${src} ${dst}
|
|
COMMENT "Copying C++ ABI header ${fpath}...")
|
|
list(APPEND abilib_headers "${dst}")
|
|
|
|
if (NOT LIBCXX_USING_INSTALLED_LLVM AND LIBCXX_HEADER_DIR)
|
|
set(dst "${LIBCXX_HEADER_DIR}/include/c++/v1/${dstdir}/${fpath}")
|
|
add_custom_command(OUTPUT ${dst}
|
|
DEPENDS ${src}
|
|
COMMAND ${CMAKE_COMMAND} -E copy_if_different ${src} ${dst}
|
|
COMMENT "Copying C++ ABI header ${fpath}...")
|
|
list(APPEND abilib_headers "${dst}")
|
|
endif()
|
|
|
|
if (LIBCXX_INSTALL_HEADERS)
|
|
install(FILES "${LIBCXX_BINARY_INCLUDE_DIR}/${fpath}"
|
|
DESTINATION ${LIBCXX_INSTALL_HEADER_PREFIX}include/c++/v1/${dstdir}
|
|
COMPONENT cxx-headers
|
|
PERMISSIONS OWNER_READ OWNER_WRITE GROUP_READ WORLD_READ
|
|
)
|
|
endif()
|
|
endif()
|
|
endforeach()
|
|
if (NOT found)
|
|
message(WARNING "Failed to find ${fpath}")
|
|
endif()
|
|
endforeach()
|
|
|
|
include_directories("${LIBCXX_BINARY_INCLUDE_DIR}")
|
|
add_custom_target(cxx_abi_headers ALL DEPENDS ${abilib_headers})
|
|
set(LIBCXX_CXX_ABI_HEADER_TARGET "cxx_abi_headers")
|
|
endmacro()
|
|
|
|
|
|
# Configure based on the selected ABI library.
|
|
if ("${LIBCXX_CXX_ABI_LIBNAME}" STREQUAL "libstdc++" OR
|
|
"${LIBCXX_CXX_ABI_LIBNAME}" STREQUAL "libsupc++")
|
|
set(_LIBSUPCXX_INCLUDE_FILES
|
|
cxxabi.h bits/c++config.h bits/os_defines.h bits/cpu_defines.h
|
|
bits/cxxabi_tweaks.h bits/cxxabi_forced.h
|
|
)
|
|
if ("${LIBCXX_CXX_ABI_LIBNAME}" STREQUAL "libstdc++")
|
|
set(_LIBSUPCXX_DEFINES "-DLIBSTDCXX")
|
|
set(_LIBSUPCXX_LIBNAME stdc++)
|
|
else()
|
|
set(_LIBSUPCXX_DEFINES "")
|
|
set(_LIBSUPCXX_LIBNAME supc++)
|
|
endif()
|
|
setup_abi_lib(
|
|
"-D__GLIBCXX__ ${_LIBSUPCXX_DEFINES}"
|
|
"${_LIBSUPCXX_LIBNAME}" "${_LIBSUPCXX_LIBNAME}" "${_LIBSUPCXX_INCLUDE_FILES}" "bits"
|
|
)
|
|
elseif ("${LIBCXX_CXX_ABI_LIBNAME}" STREQUAL "libcxxabi")
|
|
if (LIBCXX_CXX_ABI_INTREE)
|
|
# Link against just-built "cxxabi" target.
|
|
set(CXXABI_SHARED_LIBNAME cxxabi_shared)
|
|
set(CXXABI_STATIC_LIBNAME cxxabi_static)
|
|
else()
|
|
# Assume c++abi is installed in the system, rely on -lc++abi link flag.
|
|
set(CXXABI_SHARED_LIBNAME "c++abi")
|
|
set(CXXABI_STATIC_LIBNAME "c++abi")
|
|
endif()
|
|
if (LIBCXX_CXX_ABI_SYSTEM)
|
|
set(HEADERS "")
|
|
else()
|
|
set(HEADERS "cxxabi.h;__cxxabi_config.h")
|
|
endif()
|
|
setup_abi_lib(
|
|
"-DLIBCXX_BUILDING_LIBCXXABI"
|
|
"${CXXABI_SHARED_LIBNAME}" "${CXXABI_STATIC_LIBNAME}" "${HEADERS}" "")
|
|
elseif ("${LIBCXX_CXX_ABI_LIBNAME}" STREQUAL "libcxxrt")
|
|
setup_abi_lib(
|
|
"-DLIBCXXRT"
|
|
"cxxrt" "cxxrt" "cxxabi.h;unwind.h;unwind-arm.h;unwind-itanium.h" ""
|
|
)
|
|
elseif ("${LIBCXX_CXX_ABI_LIBNAME}" STREQUAL "vcruntime")
|
|
# Nothing TODO
|
|
elseif ("${LIBCXX_CXX_ABI_LIBNAME}" STREQUAL "none")
|
|
list(APPEND LIBCXX_COMPILE_FLAGS "-D_LIBCPP_BUILDING_HAS_NO_ABI_LIBRARY")
|
|
elseif ("${LIBCXX_CXX_ABI_LIBNAME}" STREQUAL "default")
|
|
# Nothing TODO
|
|
else()
|
|
message(FATAL_ERROR
|
|
"Unsupported c++ abi: '${LIBCXX_CXX_ABI_LIBNAME}'. \
|
|
Currently libstdc++, libsupc++, libcxxabi, libcxxrt, default and none are
|
|
supported for c++ abi."
|
|
)
|
|
endif ()
|