mirror of
https://github.com/Kitware/CMake.git
synced 2026-04-23 22:58:37 -05:00
Matthew Woehlke
2edf0fc6d7
Modify most of the modules that ship with CMake to use the new
try_compile / try_run signatures added by commit aa9220d3a0
(try_compile: Add keyword-dispatched signature, 2022-09-02). This
improves debugging by each invocation using its own directory so that
the results of multiple invocations can be retained.
This does not cover any invocations which provide an entire project, as
that flavor of try_compile has not yet been updated.
202 lines
8.6 KiB
CMake
202 lines
8.6 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(${CMAKE_ROOT}/Modules/CMakeParseImplicitIncludeInfo.cmake)
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include(${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_${lang}.bin")
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set(CMAKE_FLAGS )
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set(COMPILE_DEFINITIONS )
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if(DEFINED CMAKE_${lang}_VERBOSE_FLAG)
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set(CMAKE_FLAGS "-DEXE_LINKER_FLAGS=${CMAKE_${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_${lang}_VERBOSE_COMPILE_FLAG}")
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endif()
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if(lang STREQUAL "CUDA")
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if(CMAKE_CUDA_ARCHITECTURES STREQUAL "native")
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# We are about to detect the native architectures, so we do
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# not yet know them. Use all architectures during detection.
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set(CMAKE_CUDA_ARCHITECTURES "all")
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endif()
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set(CMAKE_CUDA_RUNTIME_LIBRARY "Static")
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endif()
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if(NOT "x${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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__TestCompiler_setTryCompileTargetType()
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# Avoid failing ABI detection on warnings.
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string(REGEX REPLACE "(^| )-Werror([= ][^ ]*)?( |$)" " " CMAKE_${lang}_FLAGS "${CMAKE_${lang}_FLAGS}")
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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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file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
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"Detecting ${lang} compiler ABI info compiled with the following output:\n${OUTPUT}\n\n")
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file(STRINGS "${BIN}" ABI_STRINGS LIMIT_COUNT 32 REGEX "INFO:[A-Za-z0-9_]+\\[[^]]*\\]")
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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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file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
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"Parsed ${lang} implicit include dir info from above output: rv=${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_${lang}_IMPLICIT_INCLUDE_DIRECTORIES_INIT}" PARENT_SCOPE)
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# Parse implicit linker information for this language, if available.
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set(implicit_dirs "")
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set(implicit_objs "")
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set(implicit_libs "")
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set(implicit_fwks "")
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if(CMAKE_${lang}_VERBOSE_FLAG)
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CMAKE_PARSE_IMPLICIT_LINK_INFO("${OUTPUT}" implicit_libs implicit_dirs implicit_fwks log
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"${CMAKE_${lang}_IMPLICIT_OBJECT_REGEX}"
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COMPUTE_IMPLICIT_OBJECTS implicit_objs
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LANGUAGE ${lang})
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file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
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"Parsed ${lang} implicit link information from above output:\n${log}\n\n")
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endif()
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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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${CMAKE_BINARY_DIR}/CMakeFiles/IntelVSImplicitPath
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${CMAKE_ROOT}/Modules/IntelVSImplicitPath
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IntelFortranImplicit
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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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# 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("${CMAKE_OSX_ARCHITECTURES}" MATCHES ";")
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set(implicit_libs "")
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endif()
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endif()
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set(CMAKE_${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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file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
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"Detecting ${lang} compiler ABI info failed to compile with the following output:\n${OUTPUT}\n${_copy_error}\n\n")
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endif()
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endif()
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endfunction()
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