Commit Graph

40 Commits

Author SHA1 Message Date
Alexandru Croitor
3c1125d9fe CMake: Create plugin initializers for static user plugins
Previously we only created object library static plugin initializers
for Qt plugins only, not user-project plugins.

The reason was that if a user tried to install the plugin target via
an export set, CMake would error out saying that the _init library is
not part of the same export set.

Introduce an OUTPUT_TARGETS option that would allow projects to get
the name of the generated _init target, so they can install it if
needed.
This was already done for qt6_add_qml_module, so we just introduce the
same option for qt6_add_plugin.

Now user static plugins will have an _init target created, which will
be propagated to consumers whenever the consumers link against the
plugin itself.

We also need an internal option to disable this propagation, because
it's handled a bit differently for Qt plugins which can be linked
either via finalizers or via usage requirements.

Amends 91c65dd80c

As a result of the implementation change, cleanup example projects
to ensure that they build successfully (the important part is
specifying the CLASS_NAME).

Only plugandpaint works properly with both shared and static Qt
builds.

echoplugin works with a shared Qt build, but not a static one due to
some assumptions in the C++ code about shared plugins.

styleplugin doesn't seem to work properly neither with shared Qt
builds nor static Qt builds, at least on macOS. But it builds fine.
For some reason even if the plugin is found, the style is not applied.

Amends 4caac1feea

Pick-to: 6.2
Task-number: QTBUG-80863
Task-number: QTBUG-92933
Change-Id: I6f631cda9566229b7a63992b23d7d7fa50303eeb
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Alexey Edelev <alexey.edelev@qt.io>
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2021-08-24 16:10:31 +02:00
Kai Köhne
d6661c5622 CMake: Warn if qt_internal_plugin(target) does not end with 'Plugin'
The logic for linking plugins in a static build in Qt6*Plugins.cmake
looks up plugins that are named Qt6*PluginConfig.cmake, and the file
name is computed by the target name.

Not naming the target 'Plugin' therefore means it won't be picked up
in static builds.

Pick-to: 6.2
Task-number: QTBUG-95731
Change-Id: Ic83a29d7c91492c302eb413a69577a0c550e1a1b
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2021-08-12 12:43:49 +02:00
Alexandru Croitor
b2f00dfb46 CMake: Rename qt6_add_plugin TYPE option to PLUGIN_TYPE
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>
2021-08-06 21:08:21 +02:00
Alexandru Croitor
e0a0101290 CMake: Apply bitcode flags to internal plugin object lib initializers
All internal libraries, plugins, object libraries (resources, plugin
initializers) need to be built with bitcode flags when targeting iOS.

Internal here means all libraries added by qt_internal_add_X
functions or associated with internal libraries.

We didn't do that for plugin initializers, which were added not too
long ago.

Extract the logic that links to Qt::PlatformModuleInternal into a
separate function to be used for object libraries.
Use it for resources and plugin initializers. It will also be used
in qtdeclarative for qml plugin initializers.

Pick-to: 6.2
Task-number: QTBUG-95208
Change-Id: I366996078f5e9d1c2d2797f6b81c522ee99529e3
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2021-07-16 09:52:26 +02:00
Alexandru Croitor
3595613a0a CMake: Don't propagate -fapplication-extension to user projects
Both the compiler and linker -fapplication-extension flag should only
be applied when building Qt's libraries (not executables).

It's up to the user project whether their code will be restricted with
application-extension-only APIs.

In qmake that can be achieved by adding to the qmake project
  CONFIG += app_extension_api_only

In CMake it can be achieved by either adding the compiler and link flags
in the project directly (using target_X_options) or by setting the
appropriate setting in the Xcode project when using the Xcode
generator.

Amends e189126f1a

Pick-to: 6.2
Task-number: QTBUG-95199
Change-Id: Ie7a764d460a89c7650391abff0fcc5abfcabef64
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2021-07-16 09:52:24 +02:00
Joerg Bornemann
8ac8d812f7 Warn on any PUBLIC usage requirements specified for Qt plugins
Repositories have been changed to be free of this warning. We're now
changing the default of QT_WARN_PLUGIN_PUBLIC_KEYWORDS to ON.

Set this variable to OFF to disable the warnings.

Pick-to: 6.2
Change-Id: Ie37a4df1032f5b1e9152d970e8a14c574ed70241
Reviewed-by: Craig Scott <craig.scott@qt.io>
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2021-07-12 19:49:13 +02:00
Alexandru Croitor
103c1bc7ba CMake: Don't generate .pri files for qml plugins
We didn't do it in Qt 5 times and it was accidentally done for Qt 6.

There's no reason to generate them, the .pri files are only meant to
be used for regular plugins so a project can do QTPLUGINS += foo.

That mechanism is not needed for qml plugins which use
qmlimportscanner instead.

Furthermore the pri contents didn't contain a class name, so they
couldn't be used anyway.

Pick-to: 6.2
Change-Id: I6299fda21ece0f693a817ab558b45aa46b97e5ee
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2021-06-17 18:56:12 +02:00
Alexandru Croitor
561fc8107f CMake: Allow promoting the Qt libraries to be global targets
User projects can set the QT_PROMOTE_TO_GLOBAL_TARGETS variable to
true so that the various imported targets created by find_package(Qt6)
are promoted to global targets.

This would allow a project to find Qt packages in a subdirectory scope
while using those Qt targets from a different scope.

E.g. it fixes errors like

  CMake Error at CMakeLists.txt:5 (target_link_libraries):
  Error evaluating generator expression:

    $<TARGET_OBJECTS:Qt6::Widgets_resources_1>

  Objects of target "Qt6::Widgets_resources_1" referenced but no such
  target exists.

when trying to use a static Qt from a sibling scope.

Various 3rd party dependency targets (like Atomic or ZLIB) are not
made global due to limitations in CMake, but as long as those targets
are not mentioned directly, it shouldn't cause issues.

The targets are made global in the generated
QtFooAdditionalTargetInfo.cmake file.

To ensure that resource object libraries promoted, the generation
of the file has to be done at the end of the defining scope
where qt_internal_export_additional_targets_file is called,
which is achieved with a deferred finalizer.

Replaced all occurrences of target promotion with a helper function
which allows tracing of all promoted targets by specifying
--log-level=debug to CMake.

Pick-to: 6.2
Fixes: QTBUG-92878
Change-Id: Ic4ec03b0bc383d7e591a58c520c3974fbea746d2
Reviewed-by: Alexey Edelev <alexey.edelev@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2021-06-16 13:22:17 +02:00
Alexandru Croitor
91c65dd80c CMake: Build plugin initializers as object libs
Instead of compiling the plugin initializers as part of a user
project, pre-compile them as object libraries while building Qt.

The installed object libraries can then be used with

    target_sources(qt_module INTERFACE $<TARGET_OBJECTS:plugin_init>)

so that they are linked into the final executable or shared library
via qt module usage requirement propagation.

This reduces the build times of user projects.

The link line placement of the object files should be correct for all
linux-y linkers because the only dependency for the object files is
Core and the Gui -> plugin -> Gui -> Core cycle does not hamper that
from empirical observations.

As a consequence of the recent change not to link plugin initialization
object files into static libraries, as well not having to compile the
files in user projects, we can get rid of the
_qt_internal_disable_static_default_plugins calls in various places.

A side note.

Consider a user static library (L) that links to a Qt static library
(Gui) which provides plugins (platform plugins).

If there is an executable (E) that links to (L), with no direct
dependency to any other Qt module and the intention is that the
executable will automatically get the platform plugin linked,
then (L) needs to link PUBLIC-ly to (Gui) so that the plugin usage
requirements are propagated successfully.

This is a limitation of using

  target_sources(qt_module INTERFACE $<TARGET_OBJECTS:plugin_init>)

which will propagate object files across static libraries only if
qt_module is linked publicly.

One could try to use

  target_link_libraries(qt_module
                        INTERFACE $<TARGET_OBJECTS:plugin_init>)

which preserves the linker arguments across static libs even if
qt_module is linked privately, but unfortunately CMake will lose
dependency information on Core, which means the object files might be
placed in the wrong place on the link line.
As far as I know this is a limitation of CMake that can't be worked
around at the moment.

Note this behavior was present before this change as well.

Task-number: QTBUG-80863
Task-number: QTBUG-92933
Change-Id: Ia99e8aa3d32d6197cacd6162515ac808f2c6c53f
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2021-05-18 22:03:46 +02:00
Alexandru Croitor
6969496e00 CMake: Fix auto-linking of static plugins for non-QML in-tree tests
Certain repositories like qtsvg, qtimageformats and qtvirtualkyboard
build plugins associated with Qt modules from other repositories
(qtsvg's QSvgPlugin associated to qtbase's QtGui).

When configuring in-tree tests in the same build folder as the
repository, the test executables would not automatically link to these
plugins.

Fix this by recording the existence of such plugins in a separate
property of the associated Qt module and only link them when both the
test executable and plugin are from the same project (their
PROJECT_NAME coincides).
This is in addition to linking the plugins associated with the
module where both are built in the same repository.

The logic is a bit tricky and ensures that plugins are not
accidentally initialized twice, so that in-tree tests work for both
top-level and per-repo builds.

As a drive-by, added a TODO explaining why in-tree tests that need to
link to static QML plugins won't work (somewhat unrelated to this
change).

Amends 734d2cdbc4ff6db6b3df8fffbb23dbbb565c076b
Amends b1fcdad9c9b9ad2bddd00f7301c8dd1159d523c2

Pick-to: 6.1
Task-number: QTBUG-87580
Change-Id: I3e1ff8166864f92dea931ec2ea34b6f56b4eec60
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2021-04-22 16:15:41 +02:00
Alexandru Croitor
c1ac201f5c CMake: Fix condition evaluation in plugin's DEFAULT_IF option
Expand the condition without an extra negation.

This fixes incorrect condition evaluation for conditions not enclosed
in parenthesis.

Pick-to: 6.1
Change-Id: I4923059b6b199676058091c23d51c9368daaebd0
Reviewed-by: Craig Scott <craig.scott@qt.io>
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2021-04-12 11:40:44 +02:00
Alexandru Croitor
ededf39142 CMake: Fix duplicate symbol errors in Windows static super builds
qt_internal_add_executable has some special logic to link static
plugins in order to avoid issues with link cycles on exported
Qt module targets. This logic does not take into account if a plugin
is a default plugin.

On windows this caused duplicate symbol linking issues in static super
builds, because both qwindows and qdirect2d define a subset of
the same symbols.

Make sure to only link to default static plugins.

This will skip linking to qdirect2d because it's not a default qpa
plugin and thus avoid linker issues.

Amends 5807e1ae81

Pick-to: 6.1 6.1.0
Fixes: QTBUG-92451
Change-Id: I56df2ce0201625088417de53038642518c1d3bbd
Reviewed-by: Alexey Edelev <alexey.edelev@qt.io>
Reviewed-by: Craig Scott <craig.scott@qt.io>
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2021-04-12 11:40:39 +02:00
Alexey Edelev
bbe26a7667 Skip adding externally added plugins to the plugin meta-sets
Plugin meta-sets are not visible outside of the module build tree, so
there is no point in adding dependencies for externally added plugins.

Change-Id: Ica5b29b57c032f4fc9b128172aaa806392e9e581
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2021-04-08 16:15:54 +02:00
Alexey Edelev
ae70011377 Remove use of qt_internal_module_info from qt_internal_add_plugin
Plugin targets don't fit the requirements of the module but use
the function associated to the module. The purpose of using
qt_internal_module_info is to get the path to the top-level include
directory. So there is no point in breaking the encapsulation rules
to get a well-known directory.

Change-Id: If3d2a31d4ec186929e3d662a79a1ae9eac988d1a
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2021-04-07 10:03:41 +02:00
Lorn Potter
4972fdb350 wasm: add cmake build support
A few configure defines get changed:
QMAKE_WASM_PTHREAD_POOL_SIZE is now QT_WASM_PTHREAD_POOL_SIZE
QMAKE_WASM_TOTAL_MEMORY is now QT_WASM_INITIAL_MEMORY
QMAKE_WASM_SOURCE_MAP_BASE is now QT_WASM_SOURCE_MAP_BASE

device-option EMSCRIPTEN_ASYNCIFY=1 is QT_EMSCRIPTEN_ASYNCIFY=1

To create source maps for debugging. use
device-option QT_WASM_SOURCE_MAP=1

Task-number: QTBUG-78647
Change-Id: If9f30cd7fb408c386d6d69b5f7b1beecf1ab44b5
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2021-04-01 19:23:42 +10:00
Craig Scott
256dea0df7 Avoid using prohibited target property names with INTERFACE targets
CMake 3.19 removed the restrictions on allowable names for properties
on INTERFACE targets. With earlier CMake versions (back to CMake 3.11),
names for custom properties must begin with either a lowercase letter
or an underscore.

In 5807e1ae81 (Add plugins to Qt tools and executables for static
builds, 2021-03-19), the names QT_REPO_PLUGIN_CLASS_NAMES and
QT_REPO_PLUGINS were used, but in some cases, the targets on which they
were being set are INTERFACE targets. Replace these with names that
are supported with CMake 3.11 or later.

Amends 5807e1ae81

Task-number: QTBUG-91915
Pick-to: 6.1
Change-Id: Ife702a1fb339b190d46a8dafb380253219199ba6
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2021-03-31 18:30:04 +11:00
Alexandru Croitor
4ffaaaf118 CMake: Semi-handle non-current repo qt modules when creating plugins
In the recent refactoring of qt_internal_add_plugin, a new target
existence check was added when associating a plugin with a qt module.
That check didn't account for a qualified qt module target name.

This failed configuration of qtsvg which checked for the existence of
a namespace-less 'Gui' in a per-repo build.

Make sure to prepend the Qt namespace to the qt module name and also
handle aliased target names.

As a drive-by, add a TODO item to figure out how to link executables
to plugins who's plugin type belong to a different repo, but both the
executable and plugin are built in the current repo.

Amends aa4a1006cb

Fixes: QTBUG-92235
Change-Id: I1c0f83672ab00f4702be9bad9a66ccc35e82f5c8
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
(cherry picked from commit 734d2cdbc4ff6db6b3df8fffbb23dbbb565c076b)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
2021-03-31 02:38:02 +00:00
Alexey Edelev
361daa2990 Fix plugin SKIP_INSTALL option
If SKIP_INSTALL option is specified for the qt_internal_add_plugin
function the install_directory variable become empty and finalizer unable
to call qt_finalize_plugin, because of lack of the second argument. It
makes sense to use the INSTALL_PATH single argument instead.

Change-Id: I2d4b40c8cf812a834c0e045569b45a649d339508
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2021-03-29 18:49:40 +02:00
Craig Scott
aa4a1006cb Refactor qt_internal_add_plugin() and qt6_add_plugin()
Remove code duplication by calling qt6_add_plugin() from
qt_internal_add_plugin().

Separate out the public and internal arguments for the
variables defined in QtBuild.cmake for these functions.
Provide them via commands instead for greater robustness.
This separation allows other Qt repos to access the appropriate
set of keywords where they define commands that forward
on to *_add_plugin() in their implementations. Retain
the old variables for now to simplify the integration
steps for updating other repos. The old variables can
be removed once there are no more references left to
them in any repo.

Task-number: QTBUG-88763
Pick-to: 6.1
Change-Id: I0105523afd95995923bd20fc963d245bbb15d34d
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2021-03-29 18:10:22 +11:00
Craig Scott
5807e1ae81 Add plugins to Qt tools and executables for static builds
In static builds, we cannot allow any part of the main build to make a
call to find_package(Qt6...) where such a call may load a
Qt6*Plugins.cmake file. That would add additional dependencies to the
main module targets, setting up a circular dependency in the set of
*Config.cmake files which cannot be resolved. This scenario would be
triggered by per-repo builds or user projects.

But Qt's tools and other executables still need to load some plugins
in static builds. Sometimes a platform plugin may be enough, other
times we may want all supportable plugins (e.g. Qt Designer).
Therefore, add all plugins we can identify as relevant for an
executable that is part of the Qt build, but add them directly to the
executable without affecting the linking relationships between the
main module libraries.

Also remove the now unnecessary check for QT_BUILD_PROJECT_NAME in
top level builds because there should be no difference between per-repo
and top level builds any more (as far as linking static plugins is
concerned).

Examples that build as part of the main build will still build
successfully after this change, but they will not run if they require
a platform plugin. Examples need to be moved out to a separate build
where they can call find_package(Qt6) without QT_NO_CREATE_TARGETS
set to TRUE to be runnable (see QTBUG-90820).

Fixes: QTBUG-91915
Pick-to: 6.1
Change-Id: I8088baddb54e394ca111b103313596d6743570ba
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2021-03-23 11:15:33 +11:00
Joerg Bornemann
82d50925f1 Fix build of QTuioTouchPlugin with Makefile generator on macOS
For each plugin, we create a custom target with it's OUTPUT_NAME such
that one simply can do 'ninja qtuiotouchplugin' to build it.

QTuiTouchPlugin has qtuiotouchplugin as OUTPUT_NAME, which is
problematic with Makefile generators on case-insensitive file systems.
See CMake upstream issue #21915 for details.

Work around this issue by not creating the custom target in this
situation.

Pick-to: 6.1
Fixes: QTBUG-84342
Change-Id: Id9a6cf0a01c179d5c93da4146e393cf00153ac4f
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2021-03-11 11:29:25 +00:00
Craig Scott
78a64e310e qtdeclarative now directly handles more qml-specific logic
Associated changes in the qtdeclarative repo now ensure that arguments
for qml plugins are handled on the calling side. This reduces the
qml-specific logic needed in qtbase and gives qtdeclarative clearer
control over qml build and install locations.

As part of that work, the INSTALL_LOCATION keyword used in
qt_internal_record_rcc_object_files() has been renamed to
INSTALL_DIRECTORY to make it consistent with the keyword used for the
same concept in other commands.

Pick-to: 6.1
Change-Id: Iebd319899f63d79fbe15ce965b84ce324c28a508
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2021-03-10 18:46:48 +11:00
Craig Scott
c6bbca7486 Make qt_get_module_for_plugin() internal and do what its name says
Contrary to its name, this command was also setting a target property.
Since it was only called in one place and that caller can just as
easily set the property instead, rename the command to make clear its
internal nature and refactor it so that the caller is responsible for
setting that property instead.

Also make it an error rather than just a warning if the command is used
for a target that doesn't belong to any module. Since this is now
unambiguously an internal command, we should always expect the target
to belong to a module.

Pick-to: 6.1
Change-Id: I929a652ddd482653868fc9df887f38f4bc7f35d9
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2021-03-02 16:44:45 +11:00
Craig Scott
fe29159aad cmake: Don't give plugins PUBLIC usage requirements
The pro2cmake.py conversion script faithfully reproduced the .pro files
for the plugins, which specified the libraries as public. But in CMake,
the implications of this are that public usage requirements should then
be propagated to consumers. We don't expect any consumers, since a
plugin is created as a MODULE library in CMake, so for Windows we don't
even have an import library to link with. The only exception to this is
for static builds where plugins are created as STATIC libraries
instead, but only in certain controlled situations do we then link to
plugins. Even then, usage requirements are not expected to propagate to
the consumers, so these relationships should always be specified as
private.

This change warns on any PUBLIC usage requirements specified for a
plugin. This check is disabled by default to avoid spamming CI builds
for repos that haven't been fixed yet. The check can be enabled by a
CMake cache option, which is intended for developers to use locally
when fixing this issue in other repos (all plugins in qtbase should
not trigger this warning as a result of changes in this commit).

Task-number: QTBUG-90819
Pick-to: 6.1
Change-Id: I09f2c8da77db1193ad3370f85d367dfc6ab7b9a6
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2021-02-24 10:37:49 +11:00
Alexey Edelev
dac4d5a492 Clear non-relevant CMake compiler flags
Add internal function to cleanup compiler flags out of the
CMAKE_xxx_FLAGS_xxx variables. Use introduced interface to clear
the '/EHsc' flag for the MSVC compiler family. This adjusts the
CMake behavior to the qmake one.

Change the 'EXCEPTIONS' option handling in helper functions. Add
ability to add enabling and disabling exception flags. Previously
it was only possible to add disabling exception flags.

Fixes: QTBUG-89952
Change-Id: I60d47660a97ae9b5a1d1f4107d352c9e97890144
Reviewed-by: Craig Scott <craig.scott@qt.io>
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2021-01-27 20:44:16 +01:00
Alexandru Croitor
b3576164f0 CMake: Disable static plugin imports for non-executable targets
There is no point in generating cpp files containing Q_IMPORT_PLUGIN()
macro calls for non-executable targets like modules, plugins and object
libraries in a static Qt build.
It causes unnecessary compiling of 10+ files for each of those targets.
In a static Qt build, plugin imports should only be done for executables,
tools and applications.

Pick-to: 6.0
Change-Id: Ied90ef2f6d77a61a093d393cfdf94c400284c4f0
Reviewed-by: Craig Scott <craig.scott@qt.io>
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2020-12-08 09:13:03 +01:00
Craig Scott
3859f15ec9 CMake: Enable NEW policies by CMake version with a global default
When a CMake release introduces a new policy that affects most Qt
modules, it may be appropriate to make each module aware of that newer
CMake version and use the NEW policy without raising the minimum CMake
version requirement. To reduce the churn associated with making that
change across all Qt modules individually, this change allows it to be
updated in a central place (qtbase), but in a way that allows a Qt
module to override it in its own .cmake.conf file if required (e.g. to
address the issues identified by policy warnings at a later time). The
policies are modified at the start of the call to
qt_build_repo_begin().

For commands defined by the qtbase module, qtbase needs to be in
control of the policy settings at the point where those commands are
defined. The above mechanism should not affect the policy settings for
these commands, so the various *Config.cmake.in files must not specify
policy ranges in a way that a Qt module's .cmake.conf file could
influence.

Starting with CMake 3.12, policies can be specified as a version range
with the cmake_minimum_required() and cmake_policy() commands. All
policies introduced in CMake versions up to the upper limit of that
range will be set to NEW. The actual version of CMake being used only
has to be at least the lower limit of the specified version range.
This change uses cmake_minimum_required() rather than cmake_policy()
due to the latter not halting further processing upon failure.
See the following:

    https://gitlab.kitware.com/cmake/cmake/-/issues/21557

Task-number: QTBUG-88700
Pick-to: 6.0
Change-Id: I0a1f2611dd629f847a18186394f500d7f52753bc
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-12-07 13:22:57 +11:00
Cristian Adam
98e6234bd4 CMake: Generate less pri files and mark header modules as no_link
Plugins will no longer get .pri files generated in non-static builds.

Header modules are now marked in the .pri files as CONFIG += no_link.

Pick-to: 6.0 6.0.0
Fixes: QTBUG-88221
Change-Id: I06e31fa970ad021261c43ca3acd88055cc4c9555
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-11-20 16:06:17 +00:00
Alexey Edelev
76230d9879 CMake: Add handling of PLUGIN_EXTENDS for generic plugins
Modify pro2cmake converter to add extra argument to
qt_internal_add_plugin. DEFINE_IF FALSE is added to generic plugins
those had "PLUGIN_EXTENDS = - " specified in .pro files.

Fixes: QTBUG-87861
Change-Id: I9269df19a32a088f5261f50e7ffff6d29c3d605f
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-11-09 18:47:51 +01:00
Joerg Bornemann
e31c6c7337 CMake: Add version information to Qt plugin DLLs
Tools and library DLLs already have version information embedded.
Add the missing _qt_internal_generate_win32_rc_file call for plugins.

Fixes: QTBUG-87747
Change-Id: I619948f4066ce229d41e8b93f125751e1d28e26c
Reviewed-by: Cristian Adam <cristian.adam@qt.io>
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-11-06 22:03:50 +01:00
Cristian Adam
68f3e37449 CMake Build: Enable separate debug info for all target types
Now all shared libraries and executables will get .debug files on
the platforms that support FEATURE_separate_debug_info

With the directory property _qt_skip_separate_debug_info certain
targets can retain the debug symbols in the binary e.g. lupdate with
MinGW 8.1.0 will cause objcopy / strip to fail.

Fixes: QTBUG-87015
Change-Id: I03b106e68ef0a42011d1ba641e6f686b2e7b7fb4
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-11-04 01:41:06 +01:00
Alexandru Croitor
53b11882c8 CMake: Cleanup module and plugin define situation
The QT.<module>.DEFINES assignment in pri files needs to take into
account the module name when computing the define name. This is the
MODULE value that qmake specifies.
In CMake that would be the value of CONFIG_MODULE_NAME.

Previously the value of the define was computed in
qt_internal_module_info() without taking into account the module name.

While qt_internal_module_info() ended being used also for plugins and
other target types, the defines computed by it were meant to be used
only for Qt modules.
Thus remove the <result>_define assignment from
qt_internal_module_info and move its computation directly into
qt_internal_add_module, taking into account the value of
CONFIG_MODULE_NAME.

The only other use of module_define was in qt_internal_add_plugin but
that was merely a long overdue copy-paste error, qmake doesn't
propagate QT_FOO_LIB defines for plugins.

As result, a define special case in testlib is not needed anymore,
because the define is now computed properly.

Finally, QT_FOO_LIB should not be used while building the Qt module
itself, so instead of using PUBLIC_DEFINES option of
qt_internal_extend_target, use target_compile_definitions(INTERFACE)
directly.

Change-Id: I4d44f7461bac2f0c09aec3e995d02dfe36e00883
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2020-10-30 21:59:20 +00:00
Alexandru Croitor
1b4ea4a1d8 CMake: Fix target dependency cycle regarding qpa plugins in qtwayland
With the introduction of the new 'default_qpa_plugins' custom target,
a target dependency cycle occurred in qtwayland:
qtwaylandscanner -> default_qpa_plugins -> a wayland qpa plugin ->
WaylandClient -> qtwaylandscanner

The issue is twofold:
- default_qpa_plugins accidentally depended on non-qpa plugins.
- All qpa plugins were enabled by default, including the wayland ones.

Fix the default_qpa_plugins target not to depend on regular non-qpa
plugins.

Also fix qpa plugins not to be enabled by default, but instead only
choose one qpa plugin to be the default (via evaluating the
DEFAULT_IF) condition.

Amends df9c7456d1

Change-Id: I22cd2c72f6b75be54263fd21097258bd179e3616
Reviewed-by: Cristian Adam <cristian.adam@qt.io>
2020-10-26 13:46:49 +01:00
Alexandru Croitor
419db858f5 CMake: Fix deprecation defines not being set properly
Instead of propagating the deprecation wranings, we compiled all code
with -Ddeprecations.

Change-Id: I0233ddc85bdbdcb93d366073b2cea5d47bdbe52a
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Cristian Adam <cristian.adam@qt.io>
2020-10-23 20:12:12 +02:00
Alexandru Croitor
df9c7456d1 CMake: Add convenience custom targets to build Qt plugins
Add 3 new convenience custom targets:
'qt_plugins', 'qpa_plugins' and 'qpa_default_plugins'.

Additionally, if we detect that an internal executable / test
links against Gui, add a dependency on the 'qpa_default_plugins'
custom target, so that if a developer configures Qt for the first time
and then calls ninja 'tst_foo_check', we ensure the test will launch
successfully because the default QPA plugin will also be built.

Change-Id: If6dd70844b5effdf8a293f65f8785855cc85b132
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-10-22 23:32:23 +00:00
Alexandru Croitor
e6fd92816d CMake: Install PDB debug info for MSVC builds
Supports installing linker generated debug info for shared libraries
and executables, as well as compiler generated debug info for static
libraries.

Works with Ninja Multi-Config as well, with the caveat that the files
are installed optionally, aka the install rule will not error out if
a pdb file is not present. This is necessary, because it's not
possible to create per-config install rules properly.

Fixes: QTBUG-87006
Change-Id: I95e91a6557eb0ee0f882103be54cd38795c349f7
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2020-10-06 10:07:02 +02:00
Joerg Bornemann
893ee16352 CMake: Fix build of Release user projects against RelWithDebInfo Qt
Building a user project in Release configuration against a Qt built with
CMAKE_CONFIGURATION_TYPES=RelWithDebInfo;Debug led to the user project
being linked against the Debug Qt libraries. This is especially painful
with MSVC where debug and release runtimes are incompatible.

We now create *AdditionalTargetInfo.cmake files along the
exported *Targets.cmake files that set the IMPORT_*_<CONFIG> properties
to the values of the release config Qt was built with.

User projects built with an unknown
configuration (CMAKE_BUILD_TYPE=ArbitraryName) will link against a
release Qt. This can be controlled by setting the variable
QT_DEFAULT_IMPORT_CONFIGURATION to, for example, DEBUG in the user
project.

Fixes: QTBUG-86743
Change-Id: I12c4b065a9845c7317f6acddab46b649f2732c9e
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-09-25 17:02:52 +02:00
Cristian Adam
079cf55111 CMake Build: Add support for -qtlibinfix configure parameter
Rename all libQt6*.so to libQt6*<infix>.so

Task-number: QTBUG-85438
Change-Id: I4b91ffaaec7bea61454b0d3c794c77f2d0868d54
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-09-23 17:31:13 +02:00
Alexandru Croitor
e0c62a48b8 CMake: Rename internal functions to contain qt_internal
Offer compatibility wrapper functions until we update all of the Qt
repos to use the new names.

Task-number: QTBUG-86815
Change-Id: I5826a4116f52a8509db32601ef7c200f9bd331de
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
Reviewed-by: Kai Koehne <kai.koehne@qt.io>
2020-09-23 16:59:05 +02:00
Alexandru Croitor
44cce1a2ea CMake: Split QtBuild.cmake into smaller files
QtBuild.cmake is huge. Split it.

Move module, plugin, tools, executables and test related functions out
of QtBuild.cmake into separate files.
Do the same for many other things too.

An additional requirement is that all the new Helpers files only
define functions and macros.
No global variable definitions are allowed, nor execution of commands
with side effects.

Some notes:
qt_install_qml_files is removed because it's dead code.

Some functions still need to be figured out, because they are
interspersed and depend on various global state assignments.

Task-number: QTBUG-86035
Change-Id: I21d79ff02eef923c202eb1000422888727cb0e2c
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2020-08-14 13:17:11 +02:00