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include(CheckCXXSourceCompiles)
function(qt_run_config_test_architecture)
set(QT_BASE_CONFIGURE_TESTS_VARS_TO_EXPORT
"" CACHE INTERNAL "Test variables that should be exported" FORCE)
# Compile test to find the target architecture and sub-architectures.
set(flags "")
qt_get_platform_try_compile_vars(platform_try_compile_vars)
list(APPEND flags ${platform_try_compile_vars})
try_compile(
_arch_result
"${CMAKE_CURRENT_BINARY_DIR}/config.tests/arch"
"${CMAKE_CURRENT_SOURCE_DIR}/config.tests/arch"
arch
CMAKE_FLAGS ${flags}
)
if (NOT _arch_result)
message(FATAL_ERROR "Failed to compile architecture detection file.")
endif()
set(_arch_file_suffix "${CMAKE_EXECUTABLE_SUFFIX}")
# With emscripten the application entry point is a .js file (to be run with node for example),
# but the real "data" is in the .wasm file, so that's where we need to look for the ABI, etc.
# information.
if (EMSCRIPTEN)
set(_arch_file_suffix ".wasm")
endif()
set(arch_test_location "config.tests/arch")
if(QT_MULTI_CONFIG_FIRST_CONFIG)
string(APPEND arch_test_location "/${QT_MULTI_CONFIG_FIRST_CONFIG}")
endif()
set(_arch_file
"${CMAKE_CURRENT_BINARY_DIR}/${arch_test_location}/architecture_test${_arch_file_suffix}")
if (NOT EXISTS "${_arch_file}")
message(FATAL_ERROR
"Failed to find compiled architecture detection executable at ${_arch_file}.")
endif()
message(STATUS "Extracting architecture info from ${_arch_file}.")
file(STRINGS "${_arch_file}" _arch_lines LENGTH_MINIMUM 16 LENGTH_MAXIMUM 1024 ENCODING UTF-8)
foreach (_line ${_arch_lines})
string(LENGTH "${_line}" lineLength)
string(FIND "${_line}" "==Qt=magic=Qt== Architecture:" _pos)
if (_pos GREATER -1)
math(EXPR _pos "${_pos}+29")
string(SUBSTRING "${_line}" ${_pos} -1 _architecture)
endif()
string(FIND "${_line}" "==Qt=magic=Qt== Sub-architecture:" _pos)
if (_pos GREATER -1 AND ${lineLength} GREATER 33)
math(EXPR _pos "${_pos}+34")
string(SUBSTRING "${_line}" ${_pos} -1 _sub_architecture)
string(REPLACE " " ";" _sub_architecture "${_sub_architecture}")
endif()
string(FIND "${_line}" "==Qt=magic=Qt== Build-ABI:" _pos)
if (_pos GREATER -1)
math(EXPR _pos "${_pos}+26")
string(SUBSTRING "${_line}" ${_pos} -1 _build_abi)
endif()
endforeach()
if (NOT _architecture OR NOT _build_abi)
message(FATAL_ERROR "Failed to extract architecture data from file.")
endif()
set(TEST_architecture 1 CACHE INTERNAL "Ran the architecture test")
set(TEST_architecture_arch "${_architecture}" CACHE INTERNAL "Target machine architecture")
list(APPEND QT_BASE_CONFIGURE_TESTS_VARS_TO_EXPORT TEST_architecture_arch)
set(TEST_subarch 1 CACHE INTERNAL "Ran machine subArchitecture test")
foreach(it ${_sub_architecture})
# Equivalent to qmake's QT_CPU_FEATURES.$arch.
set(TEST_arch_${TEST_architecture_arch}_subarch_${it} 1 CACHE INTERNAL "Target sub architecture result")
list(APPEND QT_BASE_CONFIGURE_TESTS_VARS_TO_EXPORT TEST_arch_${TEST_architecture_arch}_subarch_${it})
endforeach()
set(TEST_buildAbi "${_build_abi}" CACHE INTERNAL "Target machine buildAbi")
list(APPEND QT_BASE_CONFIGURE_TESTS_VARS_TO_EXPORT TEST_buildAbi)
set(QT_BASE_CONFIGURE_TESTS_VARS_TO_EXPORT ${QT_BASE_CONFIGURE_TESTS_VARS_TO_EXPORT} CACHE INTERNAL "Test variables that should be exported")
list(JOIN _sub_architecture " " subarch_summary)
set_property(GLOBAL PROPERTY qt_configure_subarch_summary "${subarch_summary}")
endfunction()
function(qt_run_linker_version_script_support)
file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/version_flag.map" "VERS_1 { global: sym; };
VERS_2 { global: sym; }
VERS_1;
")
if(DEFINED CMAKE_REQUIRED_FLAGS)
set(CMAKE_REQUIRED_FLAGS_SAVE ${CMAKE_REQUIRED_FLAGS})
else()
set(CMAKE_REQUIRED_FLAGS "")
endif()
set(CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS} "-Wl,--version-script=\"${CMAKE_CURRENT_BINARY_DIR}/version_flag.map\"")
check_cxx_source_compiles("int main(void){return 0;}" HAVE_LD_VERSION_SCRIPT)
if(DEFINED CMAKE_REQUIRED_FLAGS_SAVE)
set(CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS_SAVE})
endif()
file(REMOVE "${CMAKE_CURRENT_BINARY_DIR}/conftest.map")
# For some reason the linker command line written by the XCode generator, which is
# subsequently executed by xcodebuild, ignores the linker flag, and thus the test
# seemingly succeeds. Explicitly disable the version script test on darwin platforms.
if(APPLE)
set(HAVE_LD_VERSION_SCRIPT OFF)
endif()
set(TEST_ld_version_script "${HAVE_LD_VERSION_SCRIPT}" CACHE INTERNAL "linker version script support")
endfunction()
function(qt_run_qtbase_config_tests)
qt_run_config_test_architecture()
qt_run_linker_version_script_support()
endfunction()
# The qmake build of android does not perform the right architecture tests and
# forcefully disables sse4 on android x86. We have to mimic this behavior
# for now
if (CMAKE_ANDROID_ARCH_ABI STREQUAL x86)
set(QT_FEATURE_sse4_1 OFF CACHE BOOL INTERNAL FORCE)
set(QT_FEATURE_sse4_2 OFF CACHE BOOL INTERNAL FORCE)
set(TEST_subarch_sse4_1 FALSE CACHE BOOL INTERNAL FORCE)
set(TEST_subarch_sse4_2 FALSE CACHE BOOL INTERNAL FORCE)
endif()
qt_run_qtbase_config_tests()
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