mirror of
https://github.com/Kitware/CMake.git
synced 2026-01-05 21:31:08 -06:00
db409e5e68
Not all compilers that can be used on APPLE platforms will respect the architecture(s) set in CMAKE_OSX_ARCHITECTURES and some will not raise an error if they are unable to do this. For instance, GCC will accept ignore additional architectures specified after the first -arch XXX (with a non-fatal warning) and will even link the simple test applications used in the ABI determination (and other tests that don't require external libraries) if an architecture is requested for which it doesn't have the required "multilib" set-up. Prevent unexpected build results or build failures that may occur after a lengthy build process: verify that the binary used to obtain the ABI information contains the requested architectures. Fixes: #25952
274 lines
12 KiB
CMake
274 lines
12 KiB
CMake
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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# file Copyright.txt or https://cmake.org/licensing for details.
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# Function to compile a source file to identify the compiler ABI.
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# This is used internally by CMake and should not be included by user
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# code.
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include(${CMAKE_ROOT}/Modules/Internal/CMakeDetermineLinkerId.cmake)
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include(${CMAKE_ROOT}/Modules/CMakeParseImplicitIncludeInfo.cmake)
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include(${CMAKE_ROOT}/Modules/CMakeParseImplicitLinkInfo.cmake)
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include(${CMAKE_ROOT}/Modules/CMakeParseLibraryArchitecture.cmake)
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include(CMakeTestCompilerCommon)
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function(CMAKE_DETERMINE_COMPILER_ABI lang src)
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if(NOT DEFINED CMAKE_${lang}_ABI_COMPILED)
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message(CHECK_START "Detecting ${lang} compiler ABI info")
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# Compile the ABI identification source.
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set(BIN "${CMAKE_PLATFORM_INFO_DIR}/CMakeDetermineCompilerABI_${lang}.bin")
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set(CMAKE_FLAGS )
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set(COMPILE_DEFINITIONS )
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set(LINK_OPTIONS )
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if(DEFINED CMAKE_${lang}_VERBOSE_FLAG)
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set(LINK_OPTIONS "${CMAKE_${lang}_VERBOSE_FLAG}")
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set(COMPILE_DEFINITIONS "${CMAKE_${lang}_VERBOSE_FLAG}")
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endif()
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if(DEFINED CMAKE_${lang}_VERBOSE_COMPILE_FLAG)
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set(COMPILE_DEFINITIONS "${CMAKE_${lang}_VERBOSE_COMPILE_FLAG}")
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endif()
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if(DEFINED CMAKE_${lang}_VERBOSE_LINK_FLAG)
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list(APPEND LINK_OPTIONS "${CMAKE_${lang}_VERBOSE_LINK_FLAG}")
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endif()
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if(lang MATCHES "^(CUDA|HIP)$")
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if(CMAKE_CUDA_ARCHITECTURES STREQUAL "native")
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# We are about to detect the native architectures, so we do
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# not yet know them. Use all architectures during detection.
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set(CMAKE_${lang}_ARCHITECTURES "all")
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endif()
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set(CMAKE_${lang}_RUNTIME_LIBRARY "Static")
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endif()
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if(lang STREQUAL "CXX")
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set(CMAKE_${lang}_SCAN_FOR_MODULES OFF)
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endif()
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if(NOT "x${CMAKE_${lang}_COMPILER_ID}" STREQUAL "xMSVC")
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# Avoid adding our own platform standard libraries for compilers
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# from which we might detect implicit link libraries.
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list(APPEND CMAKE_FLAGS "-DCMAKE_${lang}_STANDARD_LIBRARIES=")
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endif()
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list(JOIN LINK_OPTIONS " " LINK_OPTIONS)
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list(APPEND CMAKE_FLAGS "-DEXE_LINKER_FLAGS=${LINK_OPTIONS}")
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__TestCompiler_setTryCompileTargetType()
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# Avoid failing ABI detection on warnings.
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if(CMAKE_TRY_COMPILE_CONFIGURATION)
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string(TOUPPER "${CMAKE_TRY_COMPILE_CONFIGURATION}" _tc_config)
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else()
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set(_tc_config "DEBUG")
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endif()
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foreach(v CMAKE_${lang}_FLAGS CMAKE_${lang}_FLAGS_${_tc_config})
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string(REGEX REPLACE "(^| )-Werror([= ][^-][^ ]*)?( |$)" " " ${v} "${${v}}")
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endforeach()
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# Save the current LC_ALL, LC_MESSAGES, and LANG environment variables
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# and set them to "C" that way GCC's "search starts here" text is in
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# English and we can grok it.
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set(_orig_lc_all $ENV{LC_ALL})
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set(_orig_lc_messages $ENV{LC_MESSAGES})
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set(_orig_lang $ENV{LANG})
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set(ENV{LC_ALL} C)
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set(ENV{LC_MESSAGES} C)
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set(ENV{LANG} C)
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try_compile(CMAKE_${lang}_ABI_COMPILED
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SOURCES ${src}
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CMAKE_FLAGS ${CMAKE_FLAGS}
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# Ignore unused flags when we are just determining the ABI.
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"--no-warn-unused-cli"
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COMPILE_DEFINITIONS ${COMPILE_DEFINITIONS}
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OUTPUT_VARIABLE OUTPUT
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COPY_FILE "${BIN}"
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COPY_FILE_ERROR _copy_error
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__CMAKE_INTERNAL ABI
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)
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# Restore original LC_ALL, LC_MESSAGES, and LANG
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set(ENV{LC_ALL} ${_orig_lc_all})
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set(ENV{LC_MESSAGES} ${_orig_lc_messages})
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set(ENV{LANG} ${_orig_lang})
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# Move result from cache to normal variable.
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set(CMAKE_${lang}_ABI_COMPILED ${CMAKE_${lang}_ABI_COMPILED})
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unset(CMAKE_${lang}_ABI_COMPILED CACHE)
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if(CMAKE_${lang}_ABI_COMPILED AND _copy_error)
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set(CMAKE_${lang}_ABI_COMPILED 0)
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endif()
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set(CMAKE_${lang}_ABI_COMPILED ${CMAKE_${lang}_ABI_COMPILED} PARENT_SCOPE)
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# Load the resulting information strings.
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if(CMAKE_${lang}_ABI_COMPILED)
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message(CHECK_PASS "done")
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if(CMAKE_HOST_APPLE AND CMAKE_SYSTEM_NAME STREQUAL "Darwin")
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file(READ_MACHO "${BIN}" ARCHITECTURES archs CAPTURE_ERROR macho_error) # undocumented file() subcommand
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if (NOT macho_error)
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# sort and prune the list of found architectures
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set(arch_list_sorted ${archs})
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list(SORT arch_list_sorted)
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list(REMOVE_DUPLICATES arch_list_sorted)
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# sort and prune the list of requested architectures
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set(requested_arch_list ${CMAKE_OSX_ARCHITECTURES})
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list(SORT requested_arch_list)
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list(REMOVE_DUPLICATES requested_arch_list)
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message(CONFIGURE_LOG
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"Effective list of requested architectures (possibly empty) : \"${requested_arch_list}\"\n"
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"Effective list of architectures found in the ABI info binary: \"${arch_list_sorted}\"\n")
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# If all generated architectures were known to READ_MACHO (i.e. libmacho):
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# Compare requested and found:
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# - if no architecture(s) were requested explicitly, just check if READ_MACHO returned
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# an architecture for the ABI info binary.
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# - otherwise, check if the requested and found lists are equal
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if(arch_list_sorted MATCHES "unknown")
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# Rare but not impossible: a host with a toolchain capable of generating binaries with
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# architectures that the system libmacho is too old to know. Report the found archs as
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# usual, warn about the unknowns and skip the comparison with CMAKE_OSX_ARCHITECTURES.
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message(WARNING "The ${lang} compiler generates universal binaries with at least 1 architecture not known to the host")
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elseif(requested_arch_list AND arch_list_sorted
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AND NOT "${requested_arch_list}" STREQUAL "${arch_list_sorted}")
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# inform the user of the mismatch but show the raw input and output lists
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message(FATAL_ERROR
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"The ${lang} compiler targets architectures:\n"
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" \"${archs}\"\n"
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"but CMAKE_OSX_ARCHITECTURES is\n"
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" \"${CMAKE_OSX_ARCHITECTURES}\"\n")
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endif()
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endif()
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endif()
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cmake_policy(PUSH)
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cmake_policy(SET CMP0159 NEW) # file(STRINGS) with REGEX updates CMAKE_MATCH_<n>
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file(STRINGS "${BIN}" ABI_STRINGS LIMIT_COUNT 32 REGEX "INFO:[A-Za-z0-9_]+\\[[^]]*\\]")
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cmake_policy(POP)
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set(ABI_SIZEOF_DPTR "NOTFOUND")
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set(ABI_BYTE_ORDER "NOTFOUND")
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set(ABI_NAME "NOTFOUND")
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foreach(info ${ABI_STRINGS})
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if("${info}" MATCHES "INFO:sizeof_dptr\\[0*([^]]*)\\]" AND NOT ABI_SIZEOF_DPTR)
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set(ABI_SIZEOF_DPTR "${CMAKE_MATCH_1}")
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endif()
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if("${info}" MATCHES "INFO:byte_order\\[(BIG_ENDIAN|LITTLE_ENDIAN)\\]")
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set(byte_order "${CMAKE_MATCH_1}")
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if(ABI_BYTE_ORDER STREQUAL "NOTFOUND")
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# Tentatively use the value because this is the first occurrence.
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set(ABI_BYTE_ORDER "${byte_order}")
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elseif(NOT ABI_BYTE_ORDER STREQUAL "${byte_order}")
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# Drop value because multiple occurrences do not match.
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set(ABI_BYTE_ORDER "")
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endif()
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endif()
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if("${info}" MATCHES "INFO:abi\\[([^]]*)\\]" AND NOT ABI_NAME)
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set(ABI_NAME "${CMAKE_MATCH_1}")
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endif()
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endforeach()
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if(ABI_SIZEOF_DPTR)
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set(CMAKE_${lang}_SIZEOF_DATA_PTR "${ABI_SIZEOF_DPTR}" PARENT_SCOPE)
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elseif(CMAKE_${lang}_SIZEOF_DATA_PTR_DEFAULT)
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set(CMAKE_${lang}_SIZEOF_DATA_PTR "${CMAKE_${lang}_SIZEOF_DATA_PTR_DEFAULT}" PARENT_SCOPE)
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endif()
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if(ABI_BYTE_ORDER)
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set(CMAKE_${lang}_BYTE_ORDER "${ABI_BYTE_ORDER}" PARENT_SCOPE)
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endif()
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if(ABI_NAME)
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set(CMAKE_${lang}_COMPILER_ABI "${ABI_NAME}" PARENT_SCOPE)
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endif()
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# Parse implicit include directory for this language, if available.
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if(CMAKE_${lang}_VERBOSE_FLAG)
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set (implicit_incdirs "")
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cmake_parse_implicit_include_info("${OUTPUT}" "${lang}"
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implicit_incdirs log rv)
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message(CONFIGURE_LOG
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"Parsed ${lang} implicit include dir info: rv=${rv}\n${log}\n\n")
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if("${rv}" STREQUAL "done")
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# Entries that we have been told to explicitly pass as standard include
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# directories will not be implicitly added by the compiler.
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if(CMAKE_${lang}_STANDARD_INCLUDE_DIRECTORIES)
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list(REMOVE_ITEM implicit_incdirs ${CMAKE_${lang}_STANDARD_INCLUDE_DIRECTORIES})
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endif()
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# We parsed implicit include directories, so override the default initializer.
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set(_CMAKE_${lang}_IMPLICIT_INCLUDE_DIRECTORIES_INIT "${implicit_incdirs}")
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endif()
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endif()
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set(CMAKE_${lang}_IMPLICIT_INCLUDE_DIRECTORIES "${_CMAKE_${lang}_IMPLICIT_INCLUDE_DIRECTORIES_INIT}" PARENT_SCOPE)
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if(_CMAKE_${lang}_IMPLICIT_LINK_INFORMATION_DETERMINED_EARLY)
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# Use implicit linker information detected during compiler id step.
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set(implicit_dirs "${CMAKE_${lang}_IMPLICIT_LINK_DIRECTORIES}")
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set(implicit_objs "")
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set(implicit_libs "${CMAKE_${lang}_IMPLICIT_LINK_LIBRARIES}")
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set(implicit_fwks "${CMAKE_${lang}_IMPLICIT_LINK_FRAMEWORK_DIRECTORIES}")
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else()
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# Parse implicit linker information for this language, if available.
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set(implicit_dirs "")
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set(implicit_objs "")
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set(implicit_libs "")
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set(implicit_fwks "")
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set(compute_artifacts COMPUTE_LINKER linker_tool)
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if(CMAKE_${lang}_VERBOSE_FLAG)
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list(APPEND compute_artifacts COMPUTE_IMPLICIT_LIBS implicit_libs
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COMPUTE_IMPLICIT_DIRS implicit_dirs
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COMPUTE_IMPLICIT_FWKS implicit_fwks
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COMPUTE_IMPLICIT_OBJECTS implicit_objs)
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endif()
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cmake_parse_implicit_link_info2("${OUTPUT}" log "${CMAKE_${lang}_IMPLICIT_OBJECT_REGEX}"
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${compute_artifacts} LANGUAGE ${lang})
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message(CONFIGURE_LOG
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"Parsed ${lang} implicit link information:\n${log}\n\n")
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# for VS IDE Intel Fortran we have to figure out the
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# implicit link path for the fortran run time using
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# a try-compile
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if("${lang}" MATCHES "Fortran"
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AND "${CMAKE_GENERATOR}" MATCHES "Visual Studio")
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message(CHECK_START "Determine Intel Fortran Compiler Implicit Link Path")
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# Build a sample project which reports symbols.
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try_compile(IFORT_LIB_PATH_COMPILED
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PROJECT IntelFortranImplicit
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SOURCE_DIR ${CMAKE_ROOT}/Modules/IntelVSImplicitPath
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BINARY_DIR ${CMAKE_BINARY_DIR}/CMakeFiles/IntelVSImplicitPath
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CMAKE_FLAGS
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"-DCMAKE_Fortran_FLAGS:STRING=${CMAKE_Fortran_FLAGS}"
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OUTPUT_VARIABLE _output)
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file(WRITE
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"${CMAKE_BINARY_DIR}/CMakeFiles/IntelVSImplicitPath/output.txt"
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"${_output}")
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include(${CMAKE_BINARY_DIR}/CMakeFiles/IntelVSImplicitPath/output.cmake OPTIONAL)
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message(CHECK_PASS "done")
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endif()
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endif()
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# Implicit link libraries cannot be used explicitly for multiple
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# OS X architectures, so we skip it.
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if(DEFINED CMAKE_OSX_ARCHITECTURES)
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if("${CMAKE_OSX_ARCHITECTURES}" MATCHES ";")
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set(implicit_libs "")
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endif()
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endif()
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if(DEFINED ENV{CMAKE_${lang}_IMPLICIT_LINK_DIRECTORIES_EXCLUDE})
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list(REMOVE_ITEM implicit_dirs $ENV{CMAKE_${lang}_IMPLICIT_LINK_DIRECTORIES_EXCLUDE})
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endif()
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set(CMAKE_${lang}_COMPILER_LINKER "${linker_tool}" PARENT_SCOPE)
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cmake_determine_linker_id(${lang} "${linker_tool}")
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set(CMAKE_${lang}_COMPILER_LINKER_ID "${CMAKE_${lang}_COMPILER_LINKER_ID}" PARENT_SCOPE)
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set(CMAKE_${lang}_COMPILER_LINKER_VERSION ${CMAKE_${lang}_COMPILER_LINKER_VERSION} PARENT_SCOPE)
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set(CMAKE_${lang}_COMPILER_LINKER_FRONTEND_VARIANT ${CMAKE_${lang}_COMPILER_LINKER_FRONTEND_VARIANT} PARENT_SCOPE)
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set(CMAKE_${lang}_IMPLICIT_LINK_LIBRARIES "${implicit_libs}" PARENT_SCOPE)
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set(CMAKE_${lang}_IMPLICIT_LINK_DIRECTORIES "${implicit_dirs}" PARENT_SCOPE)
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set(CMAKE_${lang}_IMPLICIT_LINK_FRAMEWORK_DIRECTORIES "${implicit_fwks}" PARENT_SCOPE)
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cmake_parse_library_architecture(${lang} "${implicit_dirs}" "${implicit_objs}" architecture_flag)
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if(architecture_flag)
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set(CMAKE_${lang}_LIBRARY_ARCHITECTURE "${architecture_flag}" PARENT_SCOPE)
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endif()
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else()
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message(CHECK_FAIL "failed")
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endif()
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endif()
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endfunction()
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