diff options
Diffstat (limited to 'cmake/QtBaseConfigureTests.cmake')
| -rw-r--r-- | cmake/QtBaseConfigureTests.cmake | 198 |
1 files changed, 198 insertions, 0 deletions
diff --git a/cmake/QtBaseConfigureTests.cmake b/cmake/QtBaseConfigureTests.cmake new file mode 100644 index 0000000000..0d6bb1407b --- /dev/null +++ b/cmake/QtBaseConfigureTests.cmake @@ -0,0 +1,198 @@ +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) + message(STATUS "Building for: ${QT_QMAKE_TARGET_MKSPEC} (${TEST_architecture_arch}, CPU features: ${subarch_summary})") +endfunction() + + +function(qt_run_config_test_posix_iconv) + set(source "#include <iconv.h> + +int main(int, char **) +{ + iconv_t x = iconv_open(\"\", \"\"); + + char *inp; + char *outp; + size_t inbytes, outbytes; + iconv(x, &inp, &inbytes, &outp, &outbytes); + + iconv_close(x); + + return 0; +}") + check_cxx_source_compiles("${source}" HAVE_POSIX_ICONV) + + if(NOT HAVE_POSIX_ICONV) + set(_req_libraries "${CMAKE_REQUIRE_LIBRARIES}") + set(CMAKE_REQUIRE_LIBRARIES "iconv") + check_cxx_source_compiles("${source}" HAVE_POSIX_ICONV) + set(CMAKE_REQUIRE_LIBRARIES "${_req_libraries}") + if(HAVE_POSIX_ICONV) + set(TEST_iconv_needlib 1 CACHE INTERNAL "Need to link against libiconv") + endif() + endif() + + set(TEST_posix_iconv "${HAVE_POSIX_ICONV}" CACHE INTERNAL "POSIX iconv") +endfunction() + + +function(qt_run_config_test_sun_iconv) + set(source "#include <iconv.h> + +int main(int, char **) +{ + iconv_t x = iconv_open(\"\", \"\"); + + const char *inp; + char *outp; + size_t inbytes, outbytes; + iconv(x, &inp, &inbytes, &outp, &outbytes); + + iconv_close(x); + + return 0; +}") + if(DARWIN) + # as per !config.darwin in configure.json + set(HAVE_SUN_ICONV OFF) + else() + check_cxx_source_compiles("${source}" HAVE_SUN_ICONV) + endif() + + set(TEST_sun_iconv "${HAVE_SUN_ICONV}" CACHE INTERNAL "SUN libiconv") +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_posix_iconv() + + add_library(Iconv INTERFACE) + if(TEST_iconv_needlib) + target_link_libraries(Iconv PUBLIC iconv) + endif() + + if(NOT TEST_posix_iconv) + qt_run_config_test_sun_iconv() + endif() + 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() |