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* Add license headers to cmake filesLucie Gérard2022-08-034-0/+12
| | | | | | | | | | | | CMakeLists.txt and .cmake files of significant size (more than 2 lines according to our check in tst_license.pl) now have the copyright and license header. Existing copyright statements remain intact Task-number: QTBUG-88621 Change-Id: I3b98cdc55ead806ec81ce09af9271f9b95af97fa Reviewed-by: Jörg Bornemann <joerg.bornemann@qt.io>
* Bump version to 6.5.0Jani Heikkinen2022-06-061-1/+1
| | | | | Change-Id: I83a4f915a914bdc18f6706bb902f3e3b13da074f Reviewed-by: Qt Submodule Update Bot <qt_submodule_update_bot@qt-project.org>
* Use SPDX license identifiersLucie Gérard2022-05-164-141/+8
| | | | | | | | | | | | | Replace the current license disclaimer in files by a SPDX-License-Identifier. Files that have to be modified by hand are modified. License files are organized under LICENSES directory. Task-number: QTBUG-67283 Change-Id: Id880c92784c40f3bbde861c0d93f58151c18b9f1 Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org> Reviewed-by: Lars Knoll <lars.knoll@qt.io> Reviewed-by: Jörg Bornemann <joerg.bornemann@qt.io>
* Bump version from 6.2.0 to 6.4.0 in tests as wellJani Heikkinen2022-01-311-1/+1
| | | | | Change-Id: I6fbce239f1ce45c921cf3bf1c3970e03d0e520d6 Reviewed-by: Antti Kokko <antti.kokko@qt.io>
* CMake: Bump almost all cmake_minimum_required calls to 3.16Alexandru Croitor2021-09-221-1/+1
| | | | | | | | | | | | Needed for subsequent change that will check and error out if the version is lower than 3.16. We do that to ensure all policies introduced by CMake up to version 3.16 have their behavior set to NEW. Pick-to: 6.2 Task-number: QTBUG-95018 Change-Id: Ieaf82c10987dd797d86a3fd4a986a67e72de486a Reviewed-by: Kai Koehne <kai.koehne@qt.io>
* CMake: Remove qt6_enable_object_libraries_finalizer_modeAlexandru Croitor2021-08-101-18/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | qt6_enable_object_libraries_finalizer_mode is not needed anymore now that static Qt builds require CMake 3.21 and thus CMake takes care of placing object library object files at the beginning of the link line. Rename qt6_enable_import_plugins_finalizer_mode to a more generic qt6_set_finalizer_mode that can enable or disable multiple different modes. For now the only available mode is "static_plugins" which handles the behavior of the old function name. The mode can be enabled by calling qt6_set_finalizer_mode(${target} ENABLE MODES "static_plugins") Note that the function is re-tagged as being in Technical Preview. Ideally we would not need it at all. But we need to provide some workaround for the limitations of linking Qt static plugins in CMake on Linux-y platforms that use bfd ld or ld.gold. The workaround does not work well with dependencies wrapped in generator expressions which is why we can't confidently advertise it as a proper solution. Our hope is that this can be fixed in future upstream CMake versions and the function can be removed. See 6fcc272ac9dcf1d6d65de1bdf3138722ba63a902 for details. Adjust the tests due to the renamed and removed functions. Amends 19e789bace887105badae83c0a79429bbf8e8221 Amends cdbb390c4a9b8d53cfcfd0884e6720423ce5e126 Amends a25027eecb3829a65543d0e8ab00c74e1b1a21c5 Amends 6fcc272ac9dcf1d6d65de1bdf3138722ba63a902 Amends a3c430f390b379d874916d4c9ff02af5323af1bd Pick-to: 6.2 Fixes: QTBUG-95169 Task-number: QTBUG-95601 Task-number: QTBUG-95603 Change-Id: I51b85f776ec29fc04fed1a637eba7d1f60609e69 Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
* CMake: Rename qt6_add_plugin TYPE option to PLUGIN_TYPEAlexandru Croitor2021-08-061-1/+1
| | | | | | | | | | | | | The intention is to remove TYPE as a keyword completely before 6.2.0 release, but in case if that's not possible due to the large amount of repositories and examples, just print a deprecation warning for now and handle both TYPE and PLUGIN_TYPE. Task-number: QTBUG-95170 Pick-to: 6.2 Change-Id: If0c18345483b9254b0fc21120229fcc2a2fbfbf5 Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org> Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
* Use target_link_options to propagate object librariesAlexey Edelev2021-07-021-3/+63
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | target_link_options are placed by CMake at the beginning of a linker line. This gives us an opportunity to use the function to propagate object libraries. This change adds one more check in the root Config.cmake file. If CMP0099 policy is enabled, CMake enables propagating of the linking options when linking two static libraries using the PRIVATE linking visibility, so we can rely on the correct linking order and expect object libraries to be propagated. Note that on the platforms where cmake version is higher than 3.16 Qt uses CMP0099 NEW in functions like qt_add_executable. This means that at the moment of creating an executable target the TARGET_POLICY genex will also be NEW, so we do not take into the account the user defined CMP0099. If the CMP0099 policy is not available for a certain CMake version we skip the TARGET_POLICY check and simply disable propagation of the object libraries using target_link_options for both user and Qt libraries. This is applicable for the CMake versions 3.16 and less. Linking approaches have the following priorities(from higher to lower) after this change: - target_link_libraries - works if link order matters not or CMake version greater equal 3.21. - target_link_options - works if CMP0099 is set to NEW by user or if the CMake version is greater than or equal to 3.17 and an executable is created using Qt functions. - object library finalizer - works if CMake version is greater equal 3.19 or qt6_finalize_target is called explicitly. - target_sources - is used when all the other approaches could not be used. Amends a1fd4f51ada82854f35654158a334454e760a9f7 Amends 3329212815777e33dfb4697b748d10927d73f44c Pick-to: 6.2 Change-Id: I14f88caeb04e357191c840abeab89b03e210b796 Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org> Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
* Move the linking logic of the object libraries to a common functionAlexey Edelev2021-06-181-1/+1
| | | | | | | | | | | | | | | | | | | The linking logic of object libraries should be reusable outside of the resource context. This introduces a __qt_internal_propagate_object_library function that prepares all the necessary genexes to link and propagate the object library to the end-point executable. Rename resource object finalizer API to make the naming more generic to object libraries of any kind. Amends 5fb99e3860eb43f4bacacec7f4a4626cb0159b14 Pick-to: 6.2 Task-number: QTBUG-93002 Task-number: QTBUG-94528 Change-Id: I69d0f34c0dadbd67232de91035aaa53af93d1fa1 Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
* Check the impact of static link order for user projectsAlexey Edelev2021-06-161-2/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For user projects we run the static link order check once 'find_package(Qt6 ...)' is called. If linker can resolve circular dependencies between static libraries and object files we set the _qt_link_order_matters property of the Qt::Platform target. This indicates the use of finalizers is not required and we may rely on CMake-base propagation of resource libraries and resource object files. If linker could not resolve circular dependencies depending on the _qt_resource_objects_finalizer_mode value: - Finalizer will be called and collected resource objects will be linked to the target directly. - Finalizer will be omitted and resource objects will be linked using the target_sources function implicitly. This only propagates resource one level up if consumer links the static library PUBLICly, but all symbols will be resolved correctly since object files are placed in the beginning of the linker line. In the CMake version 3.21 we expect that CMake will take care about the order of the resource object files in a linker line, it's expected that all object files are located at the beginning of the linker line. TODO: Need to confirm that the CMake 3.21 meets the expectations. Amends 4e901a2f99cbfda3b479253ea54b16f02e1c3aa5 Pick-to: 6.2 Task-number: QTBUG-93002 Task-number: QTBUG-94528 Change-Id: Ia68976df8182d3d3007b90c475c1e3928a305339 Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
* remove cmake compatibility functions for old APIPeng Wenhao2021-06-111-1/+0
| | | | | | | QT_NO_INTERNAL_COMPATIBILITY_FUNCTIONS has been removed Change-Id: Ic77cdae4e5151e3b0fe05cc6dd5b43bffc24768c Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
* Add the check for linker capabilities to resolve circular dependenciesAlexey Edelev2021-06-101-2/+2
| | | | | | | | | | | | | | 'ld' only capable to resolve circular dependencies by wrapping the suspected static libraries and objects using --start/end-group arguments. We want to detect if linker is 'ld' at configure time to decide how to link the resource objects if finalizers are not enabled. The qt_config_compile_test function is extended with an extra argument since it's required to pass custom cmake flags to the ld-related test. Pick-to: 6.2 Change-Id: I484fcc99e2886952d8b0232f37e4e6a35d072931 Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
* Implement propagation of object files to the end-point executableAlexey Edelev2021-05-2713-0/+387
This proposal collects all the resource objects to the qt-specific property of the static libraries. This is done to avoid littering of other static libraries and put resource object files to the source part of the linker line when linking the end-point executable. The way we link object resource libraries is changed back to the target_link_libraries approach as we may omit using finalizers with linkers other than ld. Users may enforce finalizers by calling the qt6_enable_resource_objects_finalizer_mode function if need. Refactor tests related to the static resources. Amends ddaa7150d85624ab545ccfe098fe8b2d18241940 Task-number: QTBUG-93002 Change-Id: I74135e291cd82fb54d1b284b4b4a1e002b1fef98 Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
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