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qlistwidget.zip
Documentation says, that QModelIndex QListWidget::indexFromItem(QListWidgetItem *item) const is public, but in header file this method is marked as protected.

Martin Smith and others added 30 commits November 16, 2017 18:49
Clang needs to see a declaration for GUID, or it
will ignore some function declarations that must
be documented.

Change-Id: Ic5d5a88b82c709be7f763a44994b1c077977731a
Reviewed-by: Topi Reiniö <topi.reinio@qt.io>
netinet/in_var.h, netinet6/in6_var.h, and  net/if_media.h are missing
in iPhoneOS.sdk(s). We only use several macros and data-structs from
these headers, so to work-around the broken build we provide the
missing definitionis.

Task-number: QTBUG-64447
Change-Id: I1b8169c12b4f33959f949bbf29e80f639ab31ad3
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
These are errors where clangqdoc finds a qdoc comment, but
it can't find anything in the API to associate it with. There
are different causes. In many cases, soneone has documented a
function that isn't in the public API so it should not be
documented in the first place. In other cases, a function is
platform-specific and we need to add || defined(Q_CLANG_QDOC)
somewhere to make it visible.

Change-Id: I2b707548109f626e20d28f084072ef78f2ee6ac5
Reviewed-by: Topi Reiniö <topi.reinio@qt.io>
Change-Id: I3834ba7ce8f9bd7026f3d59f15d268b4c03e364a
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
The \fn commands were not recognized by clang-qdoc because
the template stuff was missing from the \fn commands. This
update adds the correct template text and parameters.

Change-Id: I7def18f35745b984cc1e2da7c351403d98d8668c
Reviewed-by: Topi Reiniö <topi.reinio@qt.io>
Tested with Clang, GCC 4.5 & up, ICC 17 and MSVC 2017. No current
version of MSVC supports C11 and GCC implemented the features slightly
later in C than in C++.

Change-Id: I57a1bd6e0c194530b732fffd14f45c5074c9a052
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
Both ARM and x86 can convert fp16 much faster in bulk than one at a
time. This also enables hardware accelerated conversion on x86, when
F16C isn't unconditionally available at compile time.

This code is implemented in C to ensure that there's no leakage of
inline symbols from the .obj file that was compiled by Visual Studio
with AVX support. Unfortunately, simd.prf uses $(CXX) instead of $(CC)
for all its sources, which means the file gets interpreted as C++ by
g++, clang++ and icpc. Those compilers at least don't leak any symbols.

Done-with: Thiago Macieira <thiago.macieira@intel.com>
Change-Id: I9d26d99e83392861fb09564e0e8e8d76cd8483b3
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Detecting that a Qt window has been reparented into a native window and
setting isEmbedded automatically. While there is no specific message for
the change in the parent window, a WM_WINDOWPOSCHANGING message
indicating a change in the Z order is sent. We can recognize an
embedding condition by detecting that our QWindow does not have another
QWindow as a parent, but the HWND associated with it has another HWND as
a parent, which is not the desktop window.

This change should cover the use case where a Qt-based plugin must
return a HWND to a host application, where the host application will
then reparent the HWND as it sees fit, outside of Qt control.

Task-number: QTBUG-64116
Change-Id: Iec417c0dd55ad68eff1ea75bb6f5b5495489c31e
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
One of our CI machines has WatchOS SDK 3.2 which is missing
net/if_types.h. This block integrations and until SDK is updated
in VM, we provide the missing macros from if_types.h. To be
removed ASAP.

Task-number: QTBUG-64447
Change-Id: I202d3313b9a6a6d7bd29670f0bffc182d4660f81
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Jake Petroules <jake.petroules@qt.io>
Prevent image scrolling on client-side whenever possible - do it on
server-side. When using shared memory use server-side pixmap for
scrolled contents.

Put new image which will be scrolled to the server-side pixmap and do
scroll on it. Then do a server-side copy of a scrolled area from pixmap
to he window. Also put non-scrolled image directly to the window.

When not using shared memory also don't do redundand client-side image
scrolling.

When using OpenGL compositing first copy scrolled image area from/to
server-side pixmap.

Task-number: QTBUG-64414
Change-Id: Ibf5f8cfb40cd4fb3e4a75a1b92eecb625f4fd74f
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
 Conflicts:
	src/network/access/qhttp2protocolhandler_p.h
	src/network/kernel/kernel.pri
	src/network/ssl/qsslkey_qt.cpp
	src/plugins/platforms/cocoa/qcocoascreen.mm
	src/plugins/platforms/windows/accessible/iaccessible2.cpp
	src/plugins/platforms/windows/accessible/iaccessible2.h
	src/plugins/platforms/windows/accessible/qwindowsaccessibility.cpp
	src/plugins/platforms/windows/accessible/qwindowsmsaaaccessible.cpp
	src/plugins/platforms/windows/accessible/qwindowsmsaaaccessible.h
	src/widgets/widgets/qmenu_p.h
	tests/auto/network/access/qnetworkreply/tst_qnetworkreply.cpp
	tests/auto/other/qaccessibility/tst_qaccessibility.cpp
	tests/auto/testlib/selftests/expected_cmptest.lightxml
	tests/auto/testlib/selftests/expected_cmptest.teamcity
	tests/auto/testlib/selftests/expected_cmptest.txt
	tests/auto/testlib/selftests/expected_cmptest.xml

Done-with: Edward Welbourne <edward.welbourne@qt.io>
Change-Id: I4217cc7d840cbae3e3dd28574741544469c4c6b9
An over-correction snuck in at some point.

Change-Id: Ib67c4f6ecf8e6e244a0598c025a7cb7c15401070
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Also we can't use constructors for multiple reasons now that it is C.

Change-Id: I27f3e011cc1f67f5aa134eaf3ab934456cead902
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Some cursor themes may not contain cursors with common names,
then fallback names should be used. The fallbacks in this
change were taken from the wayland plugin.

Change-Id: I7fcc47a71cafe41c88a21a7168acd3a274b71693
Reviewed-by: Andy Nichols <andy.nichols@qt.io>
That's undefined behavior, so don't test it.

Change-Id: I468637ff1835f4f50859ac3d9876463221a3285a
Reviewed-by: David Faure <david.faure@kdab.com>
The test is removing 2 rows starting at the last row of a model.
As the comment indicates, that's clearly invalid.

Change-Id: I43ef00d602934965b206e2ba591ff8fd0a6ae398
Reviewed-by: David Faure <david.faure@kdab.com>
Often requested feature in QtWebKit is reporting what kind of resource
corresponds to particular QNetworkRequest, similarly to
QWebEngineUrlRequestInfo::resourceType(). This information can be used
to modify or block certain request types in user's implementation of
QNAM::createRequest().

The only clean way to pass this data is via attributes of QNetworkRequest,
so enum value needs to be reserved. It's unlikely to be used anywhere
outside of QtWebKit, however this is already the case for
SynchronousRequestAttribute.

Change-Id: I51a258e5e4b78e6e823c30c48d0c644356de6b17
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>
 Conflicts:
	src/corelib/thread/qsemaphore.cpp
	tests/auto/network/access/qnetworkreply/tst_qnetworkreply.cpp
	tests/auto/widgets/itemviews/qtreeview/tst_qtreeview.cpp

Change-Id: Id35b535e88df63fdfe4007ea92ed4a39c4b6d707
This allows us to get "subvolumes" on all filesystem types. We do that
by detecting the subdirectory that was bind-mounted.

/proc/self/mountinfo has been in the kernel since 2.6.26. Since btrfs
was only added on 2.6.29, there is no loss of functionality for btrfs
users.

I've tested this with subvolume or mountpoint names containing spaces,
tabs and newlines.

Change-Id: I57a1bd6e0c194530b732fffd14f4fa418255d839
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
It seems the compiler supports /arch:AVX512 and /arch:AVX512F but none
of the other switches (and neither are documented). And when you pass
those, you also get Conflict Detection (CD), Double & Quad (DQ), Byte &
Word (BW) and Vector Length (VL), which matches the ICC switch
"-xCORE-AVX512". Unlike ICC, there doesn't seem to be an option to
enable only the common part of AVX-512.

Support for Intel Xeon Phi's current features (Exponential &
Reciprocation and Prefetch) and future ones (IFMA, VBMI, 4FMAPS, 4VNNI
and VPOPCNTDQ) seems to be missing altogether.

See https://blogs.msdn.microsoft.com/vcblog/2017/07/11/microsoft-visual-studio-2017-supports-intel-avx-512/

Change-Id: I98105cd9616b8097957db680d73eb1f86e487e6d
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
This has two main benefits:
 1) introduces a qmake CONFIG we can use in .pro/.pri/.prf files
 2) removes the need to keep an up-to-date list of which compilers
    support the feature

The test is implemented as trying to compile every single SIMD test we
currently have, but without passing the -mXXX option. The reason for
trying all of them is that some people may have modified their mkspecs
to add -mXXX options or -march=XXX, which could enable the particular
feature we tried, resulting in a false positive outcome.

Change-Id: I938b024e38bf4aac9154fffd14f7784dc8d1f020
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
This lets the tests run on devices which previously did not have access
to the files used (WinRT, mobile devices).

Change-Id: Ibdd85862eee6ab1a7d4da87ca321ee9bc9880bfa
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Since the x86_simd/main.cpp file already has all the source for each and
every test anyway, just reuse it.

Change-Id: I938b024e38bf4aac9154fffd14f779f450827fb9
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
The reason for each is given in the skip. It's mostly about the
server-side encryption, which is unimplemented for WinRT.

Change-Id: I036b95a4526e02fd047e193f2b3c9130bec08144
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>
Makes the code smaller and neater. Take this opportunity to mark some of
them constexpr.

Change-Id: Idaa189413f404cffb1eafffd14cef1df599c9ab7
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
Change-Id: Idaa189413f404cffb1eafffd14cef1f64308fa50
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
If the text of a QAction in a menu item contained a sequence of multiple
ampersand characters, only one of them would be removed, which is
inconsistent with the way this situation is handled on Windows, where
every other ampersand is removed, which is also the way other widgets
such as tabs, buttons, etc. are handled on macOS and other platforms.

Task-number: QTBUG-63361
Change-Id: Ibd9a520afa37b3387f3b951a94a3c275742e7ad3
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@qt.io>
This wasn't the case when called from QMimeType, or some
QMimeDatabase methods. Now fixed.

Change-Id: Ifd515c1520482e4a23c399f1f773269659c92359
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
This is actually simpler (two calls to ensureLoaded are enough,
rather than one in every implementation method) and is necessary
for further refactoring steps (which will instanciate more provider
instances).

Change-Id: I9fb8acf3556515babecb88ba88e25af43937af5a
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Martin Smith and others added 12 commits January 5, 2018 20:22
Added missing template clause to \fn commands required by clang-qdoc.
Changed a few Q_QDOC macros to Q_CLANG_QDOC.

Change-Id: I20e6855b13df6384b471fc2bb5de27b0e3b44d1b
Reviewed-by: Topi Reiniö <topi.reinio@qt.io>
Several enum values had to be given \value statements, and a
member function only visible for Windows had to become visible
to clang-qdoc.

Change-Id: I47fbbcf9c5e4333abd13a041ce8fee2c13f9541d
Reviewed-by: Topi Reiniö <topi.reinio@qt.io>
clang required adding template clauses to \fn commands and in one
instance, removing a formal parameter name from a \fn command. An
instance of Q_QDOC was changed to Q_CLANG_QDOC in the include file.

Change-Id: Ic7dab56705043d2db8578dfc002d2f41b927f756
Reviewed-by: Topi Reiniö <topi.reinio@qt.io>
QHeaderView::resizeSection() did not check if the given section size is
inside the min/max property bounds.
Also on calling setMin/MaximumSectionSize() the current section sizes
were not checked if they are inside the new given bounds.
This is a small behavior change when a user is setting the section size
via resizeSection() without respecting the min/maxSectionSizes.

Task-number: QTBUG-64173
Change-Id: Ia9c9eebf058d60c776ab5f8f8336642013ec553f
Reviewed-by: Thorbjørn Lund Martsum <tmartsum@gmail.com>
The editor geometry was adjusted to a proper size in RTL-mode, but not
in LTR-mode. To fix this inconsistency, the geometry is now also
adjusted in LTR-mode to make sure the editor has enough space for the
min/max values for the given datatype.

Task-number: QTBUG-37433
Change-Id: Iff41e854f2fa2104ab5c589d24780facc3ed5815
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@qt.io>
With this change, it is possible to significantly reduce memory
consumption of applications that fetch large result sets from databases.
The implementation is based on the new functionality called "single-row
mode" that was introduced in PostgreSQL version 9.2:

https://www.postgresql.org/docs/9.2/static/libpq-async.html

It also uses asynchronous commands PQsendQuery(), PQgetResult():

https://www.postgresql.org/docs/9.2/static/libpq-single-row-mode.html

[ChangeLog][QtSql][QPSQL] Added support for forward-only queries (requires
libpq version 9.2 or later)

[Important Behavior Changes] The QPSQL driver now supports forward-only
queries. To use this feature, you must build QPSQL plugin with PostreSQL
client library version 9.2 or later. See the Qt SQL documentation for
more information about QPSQL limitations of forward-only queries
(sql-driver.html).

[Important Behavior Changes] If you build the QPSQL plugin with PostgreSQL
version 9.2 or later, then you must distribute your application with
libpq version 9.2 or later. Otherwise, the QPSQL plugin will fail to load.

Task-number: QTBUG-63714
Change-Id: I15db8c8fd664f2a1f719329f5d113511fa69010c
Reviewed-by: Andy Shaw <andy.shaw@qt.io>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
[ChangeLog][QtWidgets][QMenuBar] Add overloads of addAction() using Qt 5 signals and slots

Change-Id: Ief21974213b80111f0ca87df490eb72dd6b9c9b9
Reviewed-by: Martin Smith <martin.smith@qt.io>
Change-Id: I2264d7346f15f8488d0f9ef3f7e190c6026d84e9
Reviewed-by: Andy Nichols <andy.nichols@qt.io>
Add some macros to enable systematic testing of QStringBuilder
expressions.

Change-Id: I6b7dbcb4a4ca0d1aebdfe7cb9861af881c0cd346
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
If a user is using EGL on X, we need to reply to sync requests in the
same way that we do in the GLX backend.

Change-Id: I950de284685dc0ead896688c434828ab1b9c673f
Reviewed-by: Aleix Pol
Reviewed-by: Frederik Gladhorn <frederik.gladhorn@qt.io>
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
Remove code for older versions and streamline #ifdefs.

Task-number: QTBUG-51673
Change-Id: I211703189ff12f827d94914093369736b6e65d4a
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Task-number: QTBUG-22775
Task-number: QTBUG-51293
Change-Id: If615426001a1ea482f854f49cbae33ca1c954e9a
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
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not quite sure what the purpose of this PR is, but in any case please follow https://wiki.qt.io/Qt_Contribution_Guidelines

@ossilator ossilator closed this Jan 8, 2018
qtprojectorg pushed a commit that referenced this pull request Sep 17, 2021
We can't guarantee that the library didn't define Objective-C classes
that still have lingering references, resulting in warnings such as:

 Attempt to use unknown class 0x10e52e110.

And possibly crashes such as:

 thread #1, queue = 'com.apple.main-thread'
    frame #0: 0x00007fff203829ee libsystem_kernel.dylib`__ulock_wait + 10
    frame #1: 0x00007fff203fa0c5 libsystem_platform.dylib`_os_unfair_lock_lock_slow + 162
    frame #2: 0x00007fff2026226b libobjc.A.dylib`unmap_image + 85
    frame #3: 0x000000010001e11f dyld`dyld::removeImage(ImageLoader*) + 557
    frame #4: 0x000000010002291d dyld`dyld::garbageCollectImages() + 956
    frame #5: 0x000000010002e35d dyld`dlclose + 191
    frame #6: 0x00007fff203cf1c9 libdyld.dylib`dlclose + 183
    frame #7: 0x0000000103f9f2f1 libQt6Core_debug.6.dylib`QLibraryPrivate::unload_sys(this=0x000000011ba2c7d0) at qlibrary_unix.cpp:294:9
    frame #8: 0x0000000103f93f3f libQt6Core_debug.6.dylib`QLibraryPrivate::unload(this=0x000000011ba2c7d0, flag=UnloadSys) at qlibrary.cpp:614:36
    frame #9: 0x0000000103f971fb libQt6Core_debug.6.dylib`QLibraryStore::cleanup() at qlibrary.cpp:425:22
    frame #10: 0x0000000103f970f9 libQt6Core_debug.6.dylib`qlibraryCleanup() at qlibrary.cpp:447:5
    frame #11: 0x0000000103f970d1 libQt6Core_debug.6.dylib`(anonymous namespace)::qlibraryCleanup_dtor_class_::~qlibraryCleanup_dtor_class_(this=0x00000001041edd38) at qlibrary.cpp:449:1
    frame #12: 0x0000000103f930f5 libQt6Core_debug.6.dylib`(anonymous namespace)::qlibraryCleanup_dtor_class_::~qlibraryCleanup_dtor_class_(this=0x00000001041edd38) at qlibrary.cpp:449:1
    frame #13: 0x00007fff202e5d25 libsystem_c.dylib`__cxa_finalize_ranges + 316
    frame #14: 0x00007fff202e6010 libsystem_c.dylib`exit + 53
    frame #15: 0x00007fff203d1f44 libdyld.dylib`start + 8
    frame #16: 0x00007fff203d1f3d libdyld.dylib`start + 1

  thread #5, queue = 'com.apple.root.user-interactive-qos', stop reason = signal SIGABRT
    frame #0: 0x00007fff203a356e libsystem_kernel.dylib`__abort_with_payload + 10
    frame #1: 0x00007fff203a4fbd libsystem_kernel.dylib`abort_with_payload_wrapper_internal + 80
    frame #2: 0x00007fff203a4f6d libsystem_kernel.dylib`abort_with_reason + 19
    frame #3: 0x00007fff202749e3 libobjc.A.dylib`_objc_fatalv(unsigned long long, unsigned long long, char const*, __va_list_tag*) + 114
    frame #4: 0x00007fff20274971 libobjc.A.dylib`_objc_fatal(char const*, ...) + 135
    frame #5: 0x00007fff20255ccb libobjc.A.dylib`lookUpImpOrForward + 881
    frame #6: 0x00007fff2025539b libobjc.A.dylib`_objc_msgSend_uncached + 75
    frame #7: 0x00007fff22f368d6 AppKit`-[_NSWindowTransformAnimation setCurrentProgress:] + 42
    frame #8: 0x00007fff22f37a8a AppKit`__55-[NSAnimation(NSInternal) _advanceTimeWithDisplayLink:]_block_invoke + 31
    frame #9: 0x00007fff22d0774f AppKit`NSPerformVisuallyAtomicChange + 132
    frame #10: 0x00007fff22f379dc AppKit`-[NSAnimation(NSInternal) _advanceTimeWithDisplayLink:] + 172
    frame #11: 0x00007fff22e9a184 AppKit`-[NSScreenDisplayLink _fire] + 180
    frame #12: 0x00007fff2362f0b4 AppKit`___NSRunLoopTimerCreateWithHandler_block_invoke + 34
    frame #13: 0x00007fff204c6be9 CoreFoundation`__CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 20
    frame #14: 0x00007fff204c66dd CoreFoundation`__CFRunLoopDoTimer + 927
    frame #15: 0x00007fff204c623a CoreFoundation`__CFRunLoopDoTimers + 307
    frame #16: 0x00007fff204ace13 CoreFoundation`__CFRunLoopRun + 1988
    frame #17: 0x00007fff204abf8c CoreFoundation`CFRunLoopRunSpecific + 563
    frame #18: 0x00007fff2123d607 Foundation`-[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 212
    frame #19: 0x00007fff22f378f0 AppKit`-[NSAnimation(NSInternal) _runBlocking] + 453
    frame #20: 0x00007fff22f376ae AppKit`__42-[NSAnimation(NSInternal) _runInNewThread]_block_invoke + 97
    frame #21: 0x0000000104edb032 libdispatch.dylib`_dispatch_call_block_and_release + 12
    frame #22: 0x0000000104edc264 libdispatch.dylib`_dispatch_client_callout + 8
    frame #23: 0x0000000104ef04ac libdispatch.dylib`_dispatch_root_queue_drain + 828
    frame #24: 0x0000000104ef0d3f libdispatch.dylib`_dispatch_worker_thread2 + 127
    frame #25: 0x0000000104f7eac7 libsystem_pthread.dylib`_pthread_wqthread + 244
    frame #26: 0x0000000104f7dae3 libsystem_pthread.dylib`start_wqthread + 15

This has been e.g. observed when a QNSWindow isn't closed and released
at application quit as expected. Although that is a corner case that
shouldn't happen, the general case is still valid.

Fixes: QTBUG-96208
Pick-to: 6.2 5.15
Change-Id: I6c9d220e6f5389707baf7ae983f3156e8e51c316
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
qtprojectorg pushed a commit that referenced this pull request Sep 17, 2021
We can't guarantee that the library didn't define Objective-C classes
that still have lingering references, resulting in warnings such as:

 Attempt to use unknown class 0x10e52e110.

And possibly crashes such as:

 thread #1, queue = 'com.apple.main-thread'
    frame #0: 0x00007fff203829ee libsystem_kernel.dylib`__ulock_wait + 10
    frame #1: 0x00007fff203fa0c5 libsystem_platform.dylib`_os_unfair_lock_lock_slow + 162
    frame #2: 0x00007fff2026226b libobjc.A.dylib`unmap_image + 85
    frame #3: 0x000000010001e11f dyld`dyld::removeImage(ImageLoader*) + 557
    frame #4: 0x000000010002291d dyld`dyld::garbageCollectImages() + 956
    frame #5: 0x000000010002e35d dyld`dlclose + 191
    frame #6: 0x00007fff203cf1c9 libdyld.dylib`dlclose + 183
    frame #7: 0x0000000103f9f2f1 libQt6Core_debug.6.dylib`QLibraryPrivate::unload_sys(this=0x000000011ba2c7d0) at qlibrary_unix.cpp:294:9
    frame #8: 0x0000000103f93f3f libQt6Core_debug.6.dylib`QLibraryPrivate::unload(this=0x000000011ba2c7d0, flag=UnloadSys) at qlibrary.cpp:614:36
    frame #9: 0x0000000103f971fb libQt6Core_debug.6.dylib`QLibraryStore::cleanup() at qlibrary.cpp:425:22
    frame #10: 0x0000000103f970f9 libQt6Core_debug.6.dylib`qlibraryCleanup() at qlibrary.cpp:447:5
    frame #11: 0x0000000103f970d1 libQt6Core_debug.6.dylib`(anonymous namespace)::qlibraryCleanup_dtor_class_::~qlibraryCleanup_dtor_class_(this=0x00000001041edd38) at qlibrary.cpp:449:1
    frame #12: 0x0000000103f930f5 libQt6Core_debug.6.dylib`(anonymous namespace)::qlibraryCleanup_dtor_class_::~qlibraryCleanup_dtor_class_(this=0x00000001041edd38) at qlibrary.cpp:449:1
    frame #13: 0x00007fff202e5d25 libsystem_c.dylib`__cxa_finalize_ranges + 316
    frame #14: 0x00007fff202e6010 libsystem_c.dylib`exit + 53
    frame #15: 0x00007fff203d1f44 libdyld.dylib`start + 8
    frame #16: 0x00007fff203d1f3d libdyld.dylib`start + 1

  thread #5, queue = 'com.apple.root.user-interactive-qos', stop reason = signal SIGABRT
    frame #0: 0x00007fff203a356e libsystem_kernel.dylib`__abort_with_payload + 10
    frame #1: 0x00007fff203a4fbd libsystem_kernel.dylib`abort_with_payload_wrapper_internal + 80
    frame #2: 0x00007fff203a4f6d libsystem_kernel.dylib`abort_with_reason + 19
    frame #3: 0x00007fff202749e3 libobjc.A.dylib`_objc_fatalv(unsigned long long, unsigned long long, char const*, __va_list_tag*) + 114
    frame #4: 0x00007fff20274971 libobjc.A.dylib`_objc_fatal(char const*, ...) + 135
    frame #5: 0x00007fff20255ccb libobjc.A.dylib`lookUpImpOrForward + 881
    frame #6: 0x00007fff2025539b libobjc.A.dylib`_objc_msgSend_uncached + 75
    frame #7: 0x00007fff22f368d6 AppKit`-[_NSWindowTransformAnimation setCurrentProgress:] + 42
    frame #8: 0x00007fff22f37a8a AppKit`__55-[NSAnimation(NSInternal) _advanceTimeWithDisplayLink:]_block_invoke + 31
    frame #9: 0x00007fff22d0774f AppKit`NSPerformVisuallyAtomicChange + 132
    frame #10: 0x00007fff22f379dc AppKit`-[NSAnimation(NSInternal) _advanceTimeWithDisplayLink:] + 172
    frame #11: 0x00007fff22e9a184 AppKit`-[NSScreenDisplayLink _fire] + 180
    frame #12: 0x00007fff2362f0b4 AppKit`___NSRunLoopTimerCreateWithHandler_block_invoke + 34
    frame #13: 0x00007fff204c6be9 CoreFoundation`__CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 20
    frame #14: 0x00007fff204c66dd CoreFoundation`__CFRunLoopDoTimer + 927
    frame #15: 0x00007fff204c623a CoreFoundation`__CFRunLoopDoTimers + 307
    frame #16: 0x00007fff204ace13 CoreFoundation`__CFRunLoopRun + 1988
    frame #17: 0x00007fff204abf8c CoreFoundation`CFRunLoopRunSpecific + 563
    frame #18: 0x00007fff2123d607 Foundation`-[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 212
    frame #19: 0x00007fff22f378f0 AppKit`-[NSAnimation(NSInternal) _runBlocking] + 453
    frame #20: 0x00007fff22f376ae AppKit`__42-[NSAnimation(NSInternal) _runInNewThread]_block_invoke + 97
    frame #21: 0x0000000104edb032 libdispatch.dylib`_dispatch_call_block_and_release + 12
    frame #22: 0x0000000104edc264 libdispatch.dylib`_dispatch_client_callout + 8
    frame #23: 0x0000000104ef04ac libdispatch.dylib`_dispatch_root_queue_drain + 828
    frame #24: 0x0000000104ef0d3f libdispatch.dylib`_dispatch_worker_thread2 + 127
    frame #25: 0x0000000104f7eac7 libsystem_pthread.dylib`_pthread_wqthread + 244
    frame #26: 0x0000000104f7dae3 libsystem_pthread.dylib`start_wqthread + 15

This has been e.g. observed when a QNSWindow isn't closed and released
at application quit as expected. Although that is a corner case that
shouldn't happen, the general case is still valid.

Fixes: QTBUG-96208
Change-Id: I6c9d220e6f5389707baf7ae983f3156e8e51c316
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
(cherry picked from commit b6200de)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
qtprojectorg pushed a commit that referenced this pull request Oct 27, 2022
We can't guarantee that the library didn't define Objective-C classes
that still have lingering references, resulting in warnings such as:

 Attempt to use unknown class 0x10e52e110.

And possibly crashes such as:

 thread #1, queue = 'com.apple.main-thread'
    frame #0: 0x00007fff203829ee libsystem_kernel.dylib`__ulock_wait + 10
    frame #1: 0x00007fff203fa0c5 libsystem_platform.dylib`_os_unfair_lock_lock_slow + 162
    frame #2: 0x00007fff2026226b libobjc.A.dylib`unmap_image + 85
    frame #3: 0x000000010001e11f dyld`dyld::removeImage(ImageLoader*) + 557
    frame #4: 0x000000010002291d dyld`dyld::garbageCollectImages() + 956
    frame #5: 0x000000010002e35d dyld`dlclose + 191
    frame #6: 0x00007fff203cf1c9 libdyld.dylib`dlclose + 183
    frame #7: 0x0000000103f9f2f1 libQt6Core_debug.6.dylib`QLibraryPrivate::unload_sys(this=0x000000011ba2c7d0) at qlibrary_unix.cpp:294:9
    frame #8: 0x0000000103f93f3f libQt6Core_debug.6.dylib`QLibraryPrivate::unload(this=0x000000011ba2c7d0, flag=UnloadSys) at qlibrary.cpp:614:36
    frame #9: 0x0000000103f971fb libQt6Core_debug.6.dylib`QLibraryStore::cleanup() at qlibrary.cpp:425:22
    frame #10: 0x0000000103f970f9 libQt6Core_debug.6.dylib`qlibraryCleanup() at qlibrary.cpp:447:5
    frame #11: 0x0000000103f970d1 libQt6Core_debug.6.dylib`(anonymous namespace)::qlibraryCleanup_dtor_class_::~qlibraryCleanup_dtor_class_(this=0x00000001041edd38) at qlibrary.cpp:449:1
    frame #12: 0x0000000103f930f5 libQt6Core_debug.6.dylib`(anonymous namespace)::qlibraryCleanup_dtor_class_::~qlibraryCleanup_dtor_class_(this=0x00000001041edd38) at qlibrary.cpp:449:1
    frame #13: 0x00007fff202e5d25 libsystem_c.dylib`__cxa_finalize_ranges + 316
    frame #14: 0x00007fff202e6010 libsystem_c.dylib`exit + 53
    frame #15: 0x00007fff203d1f44 libdyld.dylib`start + 8
    frame #16: 0x00007fff203d1f3d libdyld.dylib`start + 1

  thread #5, queue = 'com.apple.root.user-interactive-qos', stop reason = signal SIGABRT
    frame #0: 0x00007fff203a356e libsystem_kernel.dylib`__abort_with_payload + 10
    frame #1: 0x00007fff203a4fbd libsystem_kernel.dylib`abort_with_payload_wrapper_internal + 80
    frame #2: 0x00007fff203a4f6d libsystem_kernel.dylib`abort_with_reason + 19
    frame #3: 0x00007fff202749e3 libobjc.A.dylib`_objc_fatalv(unsigned long long, unsigned long long, char const*, __va_list_tag*) + 114
    frame #4: 0x00007fff20274971 libobjc.A.dylib`_objc_fatal(char const*, ...) + 135
    frame #5: 0x00007fff20255ccb libobjc.A.dylib`lookUpImpOrForward + 881
    frame #6: 0x00007fff2025539b libobjc.A.dylib`_objc_msgSend_uncached + 75
    frame #7: 0x00007fff22f368d6 AppKit`-[_NSWindowTransformAnimation setCurrentProgress:] + 42
    frame #8: 0x00007fff22f37a8a AppKit`__55-[NSAnimation(NSInternal) _advanceTimeWithDisplayLink:]_block_invoke + 31
    frame #9: 0x00007fff22d0774f AppKit`NSPerformVisuallyAtomicChange + 132
    frame #10: 0x00007fff22f379dc AppKit`-[NSAnimation(NSInternal) _advanceTimeWithDisplayLink:] + 172
    frame #11: 0x00007fff22e9a184 AppKit`-[NSScreenDisplayLink _fire] + 180
    frame #12: 0x00007fff2362f0b4 AppKit`___NSRunLoopTimerCreateWithHandler_block_invoke + 34
    frame #13: 0x00007fff204c6be9 CoreFoundation`__CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 20
    frame #14: 0x00007fff204c66dd CoreFoundation`__CFRunLoopDoTimer + 927
    frame #15: 0x00007fff204c623a CoreFoundation`__CFRunLoopDoTimers + 307
    frame #16: 0x00007fff204ace13 CoreFoundation`__CFRunLoopRun + 1988
    frame #17: 0x00007fff204abf8c CoreFoundation`CFRunLoopRunSpecific + 563
    frame #18: 0x00007fff2123d607 Foundation`-[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 212
    frame #19: 0x00007fff22f378f0 AppKit`-[NSAnimation(NSInternal) _runBlocking] + 453
    frame #20: 0x00007fff22f376ae AppKit`__42-[NSAnimation(NSInternal) _runInNewThread]_block_invoke + 97
    frame #21: 0x0000000104edb032 libdispatch.dylib`_dispatch_call_block_and_release + 12
    frame #22: 0x0000000104edc264 libdispatch.dylib`_dispatch_client_callout + 8
    frame #23: 0x0000000104ef04ac libdispatch.dylib`_dispatch_root_queue_drain + 828
    frame #24: 0x0000000104ef0d3f libdispatch.dylib`_dispatch_worker_thread2 + 127
    frame #25: 0x0000000104f7eac7 libsystem_pthread.dylib`_pthread_wqthread + 244
    frame #26: 0x0000000104f7dae3 libsystem_pthread.dylib`start_wqthread + 15

This has been e.g. observed when a QNSWindow isn't closed and released
at application quit as expected. Although that is a corner case that
shouldn't happen, the general case is still valid.

Fixes: QTBUG-96208
Change-Id: I6c9d220e6f5389707baf7ae983f3156e8e51c316
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
(cherry picked from commit b6200de)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
qtprojectorg pushed a commit that referenced this pull request Mar 9, 2025
Amends commit bfbd1a2. I've noticed
this on my Mac, because the main thread crashed at the same time as the
exitFromThread() thread was exiting and was running ~QLibraryStore:

* thread #1, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0x106)
  * frame #0: 0x00007ff8020533be libobjc.A.dylib`getMethodNoSuper_nolock(objc_class*, objc_selector*) + 47
...
    frame #19: 0x0000000103839694 QtCore`QCoreApplication::exec() at qcoreapplication.cpp:1454:32
    frame #20: 0x0000000101fc94ea QtGui`QGuiApplication::exec() at qguiapplication.cpp:1993:12
    frame #21: 0x0000000100004b59 apphelper`exitFromThread(argc=1, argv=0x00007ff7bfeff318) at apphelper.cpp:50:5
  thread #8, name = 'QThread'
...
    frame #11: 0x00007ff8020c4f94 dyld`dyld4::APIs::dlclose(void*) + 178
    frame #12: 0x0000000103e82476 QtCore`QLibraryPrivate::unload_sys(this=0x0000600001254160) at qlibrary_unix.cpp:252:24
    frame #13: 0x0000000103e793fc QtCore`QLibraryPrivate::unload(this=0x0000600001254160, flag=UnloadSys) at qlibrary.cpp:561:36
    frame #14: 0x00000001039740c8 QtCore`QFactoryLoader::~QFactoryLoader(this=0x00000001029e5e70) at qfactoryloader.cpp:438:21
    frame #15: 0x00000001039745e9 QtCore`QFactoryLoader::~QFactoryLoader(this=0x00000001029e5e70) at qfactoryloader.cpp:425:1
    frame #16: 0x0000000101eb723c QtGui`void std::__1::__destroy_at[abi:sn180100]<QFactoryLoader, 0>(__loc=0x00000001029e5e70) at construct_at.h:67:11
    frame #17: 0x0000000101eb7209 QtGui`void std::__1::destroy_at[abi:sn180100]<QFactoryLoader, 0>(__loc=0x00000001029e5e70) at construct_at.h:100:3
    frame #18: 0x0000000102046762 QtGui`QtGlobalStatic::Storage<QFactoryLoader, (anonymous namespace)::Q_QGS_piLoader>::destroyYourself(nextState=Destroyed) at qglobalstatic.h:61:9
    frame #19: 0x0000000102046736 QtGui`QtGlobalStatic::Holder<(anonymous namespace)::Q_QGS_piLoader, (anonymous namespace)::Q_QGS_piLoader>::~Holder(this=0x00000001029e5e61) at qglobalstatic.h:83:9
    frame #20: 0x00000001020465d9 QtGui`QtGlobalStatic::Holder<(anonymous namespace)::Q_QGS_piLoader, (anonymous namespace)::Q_QGS_piLoader>::~Holder(this=0x00000001029e5e61) at qglobalstatic.h:82:5
    frame #21: 0x00007ff8022f4231 libsystem_c.dylib`__cxa_finalize_ranges + 402
    frame #22: 0x00007ff8022f4052 libsystem_c.dylib`exit + 35
    frame #23: 0x000000010000755a apphelper`exitFromThread(int, char**)::$_1::operator()(this=0x000060000175612c) const at apphelper.cpp:47:9

Pick-to: 6.9 6.9.0 6.8
Change-Id: Ib1c72c7975b247cc2d17fffd6c5de89a95c22dad
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
qtprojectorg pushed a commit that referenced this pull request Mar 10, 2025
Amends commit bfbd1a2. I've noticed
this on my Mac, because the main thread crashed at the same time as the
exitFromThread() thread was exiting and was running ~QLibraryStore:

* thread #1, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0x106)
  * frame #0: 0x00007ff8020533be libobjc.A.dylib`getMethodNoSuper_nolock(objc_class*, objc_selector*) + 47
...
    frame #19: 0x0000000103839694 QtCore`QCoreApplication::exec() at qcoreapplication.cpp:1454:32
    frame #20: 0x0000000101fc94ea QtGui`QGuiApplication::exec() at qguiapplication.cpp:1993:12
    frame #21: 0x0000000100004b59 apphelper`exitFromThread(argc=1, argv=0x00007ff7bfeff318) at apphelper.cpp:50:5
  thread #8, name = 'QThread'
...
    frame #11: 0x00007ff8020c4f94 dyld`dyld4::APIs::dlclose(void*) + 178
    frame #12: 0x0000000103e82476 QtCore`QLibraryPrivate::unload_sys(this=0x0000600001254160) at qlibrary_unix.cpp:252:24
    frame #13: 0x0000000103e793fc QtCore`QLibraryPrivate::unload(this=0x0000600001254160, flag=UnloadSys) at qlibrary.cpp:561:36
    frame #14: 0x00000001039740c8 QtCore`QFactoryLoader::~QFactoryLoader(this=0x00000001029e5e70) at qfactoryloader.cpp:438:21
    frame #15: 0x00000001039745e9 QtCore`QFactoryLoader::~QFactoryLoader(this=0x00000001029e5e70) at qfactoryloader.cpp:425:1
    frame #16: 0x0000000101eb723c QtGui`void std::__1::__destroy_at[abi:sn180100]<QFactoryLoader, 0>(__loc=0x00000001029e5e70) at construct_at.h:67:11
    frame #17: 0x0000000101eb7209 QtGui`void std::__1::destroy_at[abi:sn180100]<QFactoryLoader, 0>(__loc=0x00000001029e5e70) at construct_at.h:100:3
    frame #18: 0x0000000102046762 QtGui`QtGlobalStatic::Storage<QFactoryLoader, (anonymous namespace)::Q_QGS_piLoader>::destroyYourself(nextState=Destroyed) at qglobalstatic.h:61:9
    frame #19: 0x0000000102046736 QtGui`QtGlobalStatic::Holder<(anonymous namespace)::Q_QGS_piLoader, (anonymous namespace)::Q_QGS_piLoader>::~Holder(this=0x00000001029e5e61) at qglobalstatic.h:83:9
    frame #20: 0x00000001020465d9 QtGui`QtGlobalStatic::Holder<(anonymous namespace)::Q_QGS_piLoader, (anonymous namespace)::Q_QGS_piLoader>::~Holder(this=0x00000001029e5e61) at qglobalstatic.h:82:5
    frame #21: 0x00007ff8022f4231 libsystem_c.dylib`__cxa_finalize_ranges + 402
    frame #22: 0x00007ff8022f4052 libsystem_c.dylib`exit + 35
    frame #23: 0x000000010000755a apphelper`exitFromThread(int, char**)::$_1::operator()(this=0x000060000175612c) const at apphelper.cpp:47:9

Pick-to: 6.9.0 6.8
Change-Id: Ib1c72c7975b247cc2d17fffd6c5de89a95c22dad
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
(cherry picked from commit e6a6757)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
qtprojectorg pushed a commit that referenced this pull request Mar 10, 2025
Amends commit bfbd1a2. I've noticed
this on my Mac, because the main thread crashed at the same time as the
exitFromThread() thread was exiting and was running ~QLibraryStore:

* thread #1, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0x106)
  * frame #0: 0x00007ff8020533be libobjc.A.dylib`getMethodNoSuper_nolock(objc_class*, objc_selector*) + 47
...
    frame #19: 0x0000000103839694 QtCore`QCoreApplication::exec() at qcoreapplication.cpp:1454:32
    frame #20: 0x0000000101fc94ea QtGui`QGuiApplication::exec() at qguiapplication.cpp:1993:12
    frame #21: 0x0000000100004b59 apphelper`exitFromThread(argc=1, argv=0x00007ff7bfeff318) at apphelper.cpp:50:5
  thread #8, name = 'QThread'
...
    frame #11: 0x00007ff8020c4f94 dyld`dyld4::APIs::dlclose(void*) + 178
    frame #12: 0x0000000103e82476 QtCore`QLibraryPrivate::unload_sys(this=0x0000600001254160) at qlibrary_unix.cpp:252:24
    frame #13: 0x0000000103e793fc QtCore`QLibraryPrivate::unload(this=0x0000600001254160, flag=UnloadSys) at qlibrary.cpp:561:36
    frame #14: 0x00000001039740c8 QtCore`QFactoryLoader::~QFactoryLoader(this=0x00000001029e5e70) at qfactoryloader.cpp:438:21
    frame #15: 0x00000001039745e9 QtCore`QFactoryLoader::~QFactoryLoader(this=0x00000001029e5e70) at qfactoryloader.cpp:425:1
    frame #16: 0x0000000101eb723c QtGui`void std::__1::__destroy_at[abi:sn180100]<QFactoryLoader, 0>(__loc=0x00000001029e5e70) at construct_at.h:67:11
    frame #17: 0x0000000101eb7209 QtGui`void std::__1::destroy_at[abi:sn180100]<QFactoryLoader, 0>(__loc=0x00000001029e5e70) at construct_at.h:100:3
    frame #18: 0x0000000102046762 QtGui`QtGlobalStatic::Storage<QFactoryLoader, (anonymous namespace)::Q_QGS_piLoader>::destroyYourself(nextState=Destroyed) at qglobalstatic.h:61:9
    frame #19: 0x0000000102046736 QtGui`QtGlobalStatic::Holder<(anonymous namespace)::Q_QGS_piLoader, (anonymous namespace)::Q_QGS_piLoader>::~Holder(this=0x00000001029e5e61) at qglobalstatic.h:83:9
    frame #20: 0x00000001020465d9 QtGui`QtGlobalStatic::Holder<(anonymous namespace)::Q_QGS_piLoader, (anonymous namespace)::Q_QGS_piLoader>::~Holder(this=0x00000001029e5e61) at qglobalstatic.h:82:5
    frame #21: 0x00007ff8022f4231 libsystem_c.dylib`__cxa_finalize_ranges + 402
    frame #22: 0x00007ff8022f4052 libsystem_c.dylib`exit + 35
    frame #23: 0x000000010000755a apphelper`exitFromThread(int, char**)::$_1::operator()(this=0x000060000175612c) const at apphelper.cpp:47:9

Change-Id: Ib1c72c7975b247cc2d17fffd6c5de89a95c22dad
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
(cherry picked from commit e6a6757)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
(cherry picked from commit 87c7908)
qtprojectorg pushed a commit that referenced this pull request Mar 10, 2025
Amends commit bfbd1a2. I've noticed
this on my Mac, because the main thread crashed at the same time as the
exitFromThread() thread was exiting and was running ~QLibraryStore:

* thread #1, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0x106)
  * frame #0: 0x00007ff8020533be libobjc.A.dylib`getMethodNoSuper_nolock(objc_class*, objc_selector*) + 47
...
    frame #19: 0x0000000103839694 QtCore`QCoreApplication::exec() at qcoreapplication.cpp:1454:32
    frame #20: 0x0000000101fc94ea QtGui`QGuiApplication::exec() at qguiapplication.cpp:1993:12
    frame #21: 0x0000000100004b59 apphelper`exitFromThread(argc=1, argv=0x00007ff7bfeff318) at apphelper.cpp:50:5
  thread #8, name = 'QThread'
...
    frame #11: 0x00007ff8020c4f94 dyld`dyld4::APIs::dlclose(void*) + 178
    frame #12: 0x0000000103e82476 QtCore`QLibraryPrivate::unload_sys(this=0x0000600001254160) at qlibrary_unix.cpp:252:24
    frame #13: 0x0000000103e793fc QtCore`QLibraryPrivate::unload(this=0x0000600001254160, flag=UnloadSys) at qlibrary.cpp:561:36
    frame #14: 0x00000001039740c8 QtCore`QFactoryLoader::~QFactoryLoader(this=0x00000001029e5e70) at qfactoryloader.cpp:438:21
    frame #15: 0x00000001039745e9 QtCore`QFactoryLoader::~QFactoryLoader(this=0x00000001029e5e70) at qfactoryloader.cpp:425:1
    frame #16: 0x0000000101eb723c QtGui`void std::__1::__destroy_at[abi:sn180100]<QFactoryLoader, 0>(__loc=0x00000001029e5e70) at construct_at.h:67:11
    frame #17: 0x0000000101eb7209 QtGui`void std::__1::destroy_at[abi:sn180100]<QFactoryLoader, 0>(__loc=0x00000001029e5e70) at construct_at.h:100:3
    frame #18: 0x0000000102046762 QtGui`QtGlobalStatic::Storage<QFactoryLoader, (anonymous namespace)::Q_QGS_piLoader>::destroyYourself(nextState=Destroyed) at qglobalstatic.h:61:9
    frame #19: 0x0000000102046736 QtGui`QtGlobalStatic::Holder<(anonymous namespace)::Q_QGS_piLoader, (anonymous namespace)::Q_QGS_piLoader>::~Holder(this=0x00000001029e5e61) at qglobalstatic.h:83:9
    frame #20: 0x00000001020465d9 QtGui`QtGlobalStatic::Holder<(anonymous namespace)::Q_QGS_piLoader, (anonymous namespace)::Q_QGS_piLoader>::~Holder(this=0x00000001029e5e61) at qglobalstatic.h:82:5
    frame #21: 0x00007ff8022f4231 libsystem_c.dylib`__cxa_finalize_ranges + 402
    frame #22: 0x00007ff8022f4052 libsystem_c.dylib`exit + 35
    frame #23: 0x000000010000755a apphelper`exitFromThread(int, char**)::$_1::operator()(this=0x000060000175612c) const at apphelper.cpp:47:9

Change-Id: Ib1c72c7975b247cc2d17fffd6c5de89a95c22dad
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
(cherry picked from commit e6a6757)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
(cherry picked from commit 87c7908)
qtprojectorg pushed a commit that referenced this pull request Apr 4, 2025
…howAndHide()

The event filter was still active when the QDialogButtonBox in its
destruction process had already been demoted to QWidget. The
ignoreShowAndHide guard came too late, because by the time we check
it, in Private::handleButtonShowAndHide(), we had already cast q_ptr
to QDialogButtonBox.

Says UBSan:

  qdialogbuttonbox_p.h:26:5: runtime error: downcast of address 0x7fffefab47e0 which does not point to an object of type 'QDialogButtonBox'
  0x7fffefab47e0: note: object is of type 'QWidget'
   00 00 00 00  28 c1 5b 6e 6d 7f 00 00  80 22 10 00 90 61 00 00  d8 c2 5b 6e 6d 7f 00 00  00 00 00 00
                ^~~~~~~~~~~~~~~~~~~~~~~
                vptr for 'QWidget'
     #0 0x7f6d6b51141d in QDialogButtonBoxPrivate::q_func() qdialogbuttonbox_p.h:26
     #1 0x7f6d6b51141d in QDialogButtonBoxPrivate::handleButtonShowAndHide(QAbstractButton*, QEvent*) qdialogbuttonbox.cpp:913
     #2 0x7f6d6b51436c in eventFilter qdialogbuttonbox.cpp:127
     #3 0x7f6d40c1a8f1 in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) qcoreapplication.cpp:1248
     #4 0x7f6d690b23d5 in QApplicationPrivate::notify_helper(QObject*, QEvent*) qapplication.cpp:3303
     #5 0x7f6d69132a3a in QApplication::notify(QObject*, QEvent*) qapplication.cpp:3259
     #6 0x7f6d40c1da6a in QCoreApplication::notifyInternal2(QObject*, QEvent*) qcoreapplication.cpp:1111
     #7 0x7f6d40c20473 in QCoreApplication::sendEvent(QObject*, QEvent*) qcoreapplication.cpp:1551
     #8 0x7f6d690fe76c in QApplicationPrivate::setActiveWindow(QWidget*) qapplication.cpp:1857
     #9 0x7f6d695ac796 in QWidgetPrivate::deactivateWidgetCleanup() qwidget.cpp:2326
     #10 0x7f6d6976f8ce in QWidgetPrivate::hide_sys() qwidget.cpp:8256
     #11 0x7f6d69814579 in QWidgetPrivate::hide_helper() qwidget.cpp:8199
     #12 0x7f6d69887c1f in QWidgetPrivate::setVisible(bool) qwidget.cpp:8406
     #13 0x7f6d69775d23 in QWidget::setVisible(bool) qwidget.cpp:8314
     #14 0x7f6d695fb018 in QWidget::hide() qwidget.cpp:8179
     #15 0x7f6d6981a183 in QWidgetPrivate::handleClose(QWidgetPrivate::CloseMode) qwidget.cpp:8580
     #16 0x7f6d699e6fc6 in QWidgetWindow::closeEvent(QCloseEvent*) qwidgetwindow.cpp:871
     #17 0x7f6d52ef9f5d in QWindow::event(QEvent*) qwindow.cpp:2721
     #18 0x7f6d69a575f8 in QWidgetWindow::event(QEvent*) qwidgetwindow.cpp:398
     #19 0x7f6d690b2491 in QApplicationPrivate::notify_helper(QObject*, QEvent*) qapplication.cpp:3309
     #20 0x7f6d69132a3a in QApplication::notify(QObject*, QEvent*) qapplication.cpp:3259
     #21 0x7f6d40c1da6a in QCoreApplication::notifyInternal2(QObject*, QEvent*) qcoreapplication.cpp:1111
     #22 0x7f6d40c205b3 in QCoreApplication::sendSpontaneousEvent(QObject*, QEvent*) qcoreapplication.cpp:1565
     #23 0x7f6d5287415b in QGuiApplicationPrivate::processCloseEvent(QWindowSystemInterfacePrivate::CloseEvent*) qguiapplication.cpp:2911
     #24 0x7f6d528b543f in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) qguiapplication.cpp:2259
     #25 0x7f6d52fb5b02 in QWindowSystemEventHandler::sendEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) qwindowsysteminterface.cpp:190
     #26 0x7f6d52fb5b02 in bool QWindowSystemHelper<QWindowSystemInterface::SynchronousDelivery>::handleEvent<QWindowSystemInterfacePrivate::CloseEvent, QWindow*>(QWindow*) qwindowsysteminterface.cpp:102
     #27 0x7f6d52fb5b02 in handleWindowSystemEvent<QWindowSystemInterfacePrivate::CloseEvent, QWindowSystemInterface::SynchronousDelivery, QWindow*> qwindowsysteminterface.cpp:138
     #28 0x7f6d52fb5b02 in bool QWindowSystemInterface::handleCloseEvent<QWindowSystemInterface::SynchronousDelivery>(QWindow*) qwindowsysteminterface.cpp:351
     #29 0x7f6d52cb6f1e in QPlatformWindow::close() qplatformwindow.cpp:348
     #30 0x7f6d52e7e158 in QWindow::close() qwindow.cpp:2449
     #31 0x7f6d6981b4d2 in QWidgetPrivate::close() qwidget.cpp:8632
     #32 0x7f6d698205c6 in QWidget::~QWidget() qwidget.cpp:1508
     #33 0x7f6d6b4f6bf0 in QDialogButtonBox::~QDialogButtonBox() qdialogbuttonbox.cpp:496

To fix, don't delay the Q_Q to until after the ignoreShowAndHide
check, since that woould be brittle. Instead, do as we for signal/slot
connections, which we disconnect explicitly in ~QDialogButtonBox(),
and delete the EventFilter explicitly there, too. This way, it's more
natural, and also prevents all those useless event filter invocations
from having to be processed later on.

Amends aff0915. The original code,
using QDialogButtonBox::eventFilter(), was not affected, since by the
time QDialogButtonBox was demoted to QWidget, QWidget::eventFilter(),
not QDialogButtonBox::eventFilter() would been invoked. Which just
goes to show that one needs to be very careful with delegating too
much responsibilites to the Private class, as it lives, fully derived,
until ~QWidget() executes.

Pick-to: 6.9 6.8 6.5
Change-Id: I04f36fd6d7d160932bfe1494fdff464786b85047
Reviewed-by: Axel Spoerl <axel.spoerl@qt.io>
qtprojectorg pushed a commit that referenced this pull request Apr 10, 2025
…veButtonsFromMenuBar()

The function can be called from ~QMdiSubwindow(), and we checked for
QWidgetPrivate::data.in_destructor before proceeding with the removal
of buttons from the menubar, but we called
QPointer<QMdiSubwindow>::data()->window(), which, at this point in
time, had already been demoted to a QWidget:

Says UBSan:

  qpointer.h:75:14: runtime error: downcast of address 0x6040000aca10 which does not point to an object of type 'QMdiSubWindow'
   0x6040000aca10: note: object is of type 'QWidget'
    00 00 00 00  28 01 99 bc ff 7e 00 00  80 dc 0f 00 90 61 00 00  d8 02 99 bc ff 7e 00 00  00 00 be be
                 ^~~~~~~~~~~~~~~~~~~~~~~
                 vptr for 'QWidget'
       #0 0x7effb955f95a in QPointer<QMdiSubWindow>::data() const qpointer.h:75
       #1 0x7effb955f95a in QPointer<QMdiSubWindow>::operator->() const qpointer.h:79
       #2 0x7effb955f95a in QMdi::ControlContainer::removeButtonsFromMenuBar(QMenuBar*) qmdisubwindow.cpp:795
       #3 0x7effb9563031 in QMdi::ControlContainer::~ControlContainer() qmdisubwindow.cpp:717
       #4 0x7effb9566595 in QMdi::ControlContainer::~ControlContainer() qmdisubwindow.cpp:723
       #5 0x7eff8f4f2b7a in QObjectPrivate::deleteChildren() qobject.cpp:2226
       #6 0x7effb7bf732d in QWidget::~QWidget() qwidget.cpp:1557
       #7 0x7effb95cc02c in QMdiSubWindow::~QMdiSubWindow() qmdisubwindow.cpp:2254
       #8 0x7effb95cc1d5 in QMdiSubWindow::~QMdiSubWindow() qmdisubwindow.cpp:2254
       #9 0x7eff8f4f2b7a in QObjectPrivate::deleteChildren() qobject.cpp:2226
       #10 0x7effb7bf732d in QWidget::~QWidget() qwidget.cpp:1557
       #11 0x7effb7bffba5 in QWidget::~QWidget() qwidget.cpp:1584
       #12 0x7eff8f4f2b7a in QObjectPrivate::deleteChildren() qobject.cpp:2226
       #13 0x7effb7bf732d in QWidget::~QWidget() qwidget.cpp:1557
       #14 0x7effb85f0dc5 in QFrame::~QFrame() qframe.cpp:235
       #15 0x7effb859c747 in QAbstractScrollArea::~QAbstractScrollArea() qabstractscrollarea.cpp:478
       #16 0x7effb93c08a6 in QMdiArea::~QMdiArea() qmdiarea.cpp:1703
       #17 0x7effb93c0e55 in QMdiArea::~QMdiArea() qmdiarea.cpp:1703
       #18 0x7eff8f4f2b7a in QObjectPrivate::deleteChildren() qobject.cpp:2226
       #19 0x7effb7bf732d in QWidget::~QWidget() qwidget.cpp:1557
       #20 0x7effb920a425 in QMainWindow::~QMainWindow() qmainwindow.cpp:338

Fix by deleting the ControlContainer already from ~QMdiSubwindow(),
ie. when we have not yet been demoted to QWidget.

Amends the start of the public history.

Pick-to: 6.9 6.8 6.5 5.15
Change-Id: Ia43c857bc1842b2b4957cc79e00f790b045d8f94
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
qtprojectorg pushed a commit that referenced this pull request Apr 12, 2025
…howAndHide()

The event filter was still active when the QDialogButtonBox in its
destruction process had already been demoted to QWidget. The
ignoreShowAndHide guard came too late, because by the time we check
it, in Private::handleButtonShowAndHide(), we had already cast q_ptr
to QDialogButtonBox.

Says UBSan:

  qdialogbuttonbox_p.h:26:5: runtime error: downcast of address 0x7fffefab47e0 which does not point to an object of type 'QDialogButtonBox'
  0x7fffefab47e0: note: object is of type 'QWidget'
   00 00 00 00  28 c1 5b 6e 6d 7f 00 00  80 22 10 00 90 61 00 00  d8 c2 5b 6e 6d 7f 00 00  00 00 00 00
                ^~~~~~~~~~~~~~~~~~~~~~~
                vptr for 'QWidget'
     #0 0x7f6d6b51141d in QDialogButtonBoxPrivate::q_func() qdialogbuttonbox_p.h:26
     #1 0x7f6d6b51141d in QDialogButtonBoxPrivate::handleButtonShowAndHide(QAbstractButton*, QEvent*) qdialogbuttonbox.cpp:913
     #2 0x7f6d6b51436c in eventFilter qdialogbuttonbox.cpp:127
     #3 0x7f6d40c1a8f1 in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) qcoreapplication.cpp:1248
     #4 0x7f6d690b23d5 in QApplicationPrivate::notify_helper(QObject*, QEvent*) qapplication.cpp:3303
     #5 0x7f6d69132a3a in QApplication::notify(QObject*, QEvent*) qapplication.cpp:3259
     #6 0x7f6d40c1da6a in QCoreApplication::notifyInternal2(QObject*, QEvent*) qcoreapplication.cpp:1111
     #7 0x7f6d40c20473 in QCoreApplication::sendEvent(QObject*, QEvent*) qcoreapplication.cpp:1551
     #8 0x7f6d690fe76c in QApplicationPrivate::setActiveWindow(QWidget*) qapplication.cpp:1857
     #9 0x7f6d695ac796 in QWidgetPrivate::deactivateWidgetCleanup() qwidget.cpp:2326
     #10 0x7f6d6976f8ce in QWidgetPrivate::hide_sys() qwidget.cpp:8256
     #11 0x7f6d69814579 in QWidgetPrivate::hide_helper() qwidget.cpp:8199
     #12 0x7f6d69887c1f in QWidgetPrivate::setVisible(bool) qwidget.cpp:8406
     #13 0x7f6d69775d23 in QWidget::setVisible(bool) qwidget.cpp:8314
     #14 0x7f6d695fb018 in QWidget::hide() qwidget.cpp:8179
     #15 0x7f6d6981a183 in QWidgetPrivate::handleClose(QWidgetPrivate::CloseMode) qwidget.cpp:8580
     #16 0x7f6d699e6fc6 in QWidgetWindow::closeEvent(QCloseEvent*) qwidgetwindow.cpp:871
     #17 0x7f6d52ef9f5d in QWindow::event(QEvent*) qwindow.cpp:2721
     #18 0x7f6d69a575f8 in QWidgetWindow::event(QEvent*) qwidgetwindow.cpp:398
     #19 0x7f6d690b2491 in QApplicationPrivate::notify_helper(QObject*, QEvent*) qapplication.cpp:3309
     #20 0x7f6d69132a3a in QApplication::notify(QObject*, QEvent*) qapplication.cpp:3259
     #21 0x7f6d40c1da6a in QCoreApplication::notifyInternal2(QObject*, QEvent*) qcoreapplication.cpp:1111
     #22 0x7f6d40c205b3 in QCoreApplication::sendSpontaneousEvent(QObject*, QEvent*) qcoreapplication.cpp:1565
     #23 0x7f6d5287415b in QGuiApplicationPrivate::processCloseEvent(QWindowSystemInterfacePrivate::CloseEvent*) qguiapplication.cpp:2911
     #24 0x7f6d528b543f in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) qguiapplication.cpp:2259
     #25 0x7f6d52fb5b02 in QWindowSystemEventHandler::sendEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) qwindowsysteminterface.cpp:190
     #26 0x7f6d52fb5b02 in bool QWindowSystemHelper<QWindowSystemInterface::SynchronousDelivery>::handleEvent<QWindowSystemInterfacePrivate::CloseEvent, QWindow*>(QWindow*) qwindowsysteminterface.cpp:102
     #27 0x7f6d52fb5b02 in handleWindowSystemEvent<QWindowSystemInterfacePrivate::CloseEvent, QWindowSystemInterface::SynchronousDelivery, QWindow*> qwindowsysteminterface.cpp:138
     #28 0x7f6d52fb5b02 in bool QWindowSystemInterface::handleCloseEvent<QWindowSystemInterface::SynchronousDelivery>(QWindow*) qwindowsysteminterface.cpp:351
     #29 0x7f6d52cb6f1e in QPlatformWindow::close() qplatformwindow.cpp:348
     #30 0x7f6d52e7e158 in QWindow::close() qwindow.cpp:2449
     #31 0x7f6d6981b4d2 in QWidgetPrivate::close() qwidget.cpp:8632
     #32 0x7f6d698205c6 in QWidget::~QWidget() qwidget.cpp:1508
     #33 0x7f6d6b4f6bf0 in QDialogButtonBox::~QDialogButtonBox() qdialogbuttonbox.cpp:496

To fix, don't delay the Q_Q to until after the ignoreShowAndHide
check, since that woould be brittle. Instead, do as we for signal/slot
connections, which we disconnect explicitly in ~QDialogButtonBox(),
and delete the EventFilter explicitly there, too. This way, it's more
natural, and also prevents all those useless event filter invocations
from having to be processed later on.

Amends aff0915. The original code,
using QDialogButtonBox::eventFilter(), was not affected, since by the
time QDialogButtonBox was demoted to QWidget, QWidget::eventFilter(),
not QDialogButtonBox::eventFilter() would been invoked. Which just
goes to show that one needs to be very careful with delegating too
much responsibilites to the Private class, as it lives, fully derived,
until ~QWidget() executes.

Pick-to: 6.8 6.5
Change-Id: I04f36fd6d7d160932bfe1494fdff464786b85047
Reviewed-by: Axel Spoerl <axel.spoerl@qt.io>
(cherry picked from commit dceff0a)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
qtprojectorg pushed a commit that referenced this pull request Apr 12, 2025
…howAndHide()

The event filter was still active when the QDialogButtonBox in its
destruction process had already been demoted to QWidget. The
ignoreShowAndHide guard came too late, because by the time we check
it, in Private::handleButtonShowAndHide(), we had already cast q_ptr
to QDialogButtonBox.

Says UBSan:

  qdialogbuttonbox_p.h:26:5: runtime error: downcast of address 0x7fffefab47e0 which does not point to an object of type 'QDialogButtonBox'
  0x7fffefab47e0: note: object is of type 'QWidget'
   00 00 00 00  28 c1 5b 6e 6d 7f 00 00  80 22 10 00 90 61 00 00  d8 c2 5b 6e 6d 7f 00 00  00 00 00 00
                ^~~~~~~~~~~~~~~~~~~~~~~
                vptr for 'QWidget'
     #0 0x7f6d6b51141d in QDialogButtonBoxPrivate::q_func() qdialogbuttonbox_p.h:26
     #1 0x7f6d6b51141d in QDialogButtonBoxPrivate::handleButtonShowAndHide(QAbstractButton*, QEvent*) qdialogbuttonbox.cpp:913
     #2 0x7f6d6b51436c in eventFilter qdialogbuttonbox.cpp:127
     #3 0x7f6d40c1a8f1 in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) qcoreapplication.cpp:1248
     #4 0x7f6d690b23d5 in QApplicationPrivate::notify_helper(QObject*, QEvent*) qapplication.cpp:3303
     #5 0x7f6d69132a3a in QApplication::notify(QObject*, QEvent*) qapplication.cpp:3259
     #6 0x7f6d40c1da6a in QCoreApplication::notifyInternal2(QObject*, QEvent*) qcoreapplication.cpp:1111
     #7 0x7f6d40c20473 in QCoreApplication::sendEvent(QObject*, QEvent*) qcoreapplication.cpp:1551
     #8 0x7f6d690fe76c in QApplicationPrivate::setActiveWindow(QWidget*) qapplication.cpp:1857
     #9 0x7f6d695ac796 in QWidgetPrivate::deactivateWidgetCleanup() qwidget.cpp:2326
     #10 0x7f6d6976f8ce in QWidgetPrivate::hide_sys() qwidget.cpp:8256
     #11 0x7f6d69814579 in QWidgetPrivate::hide_helper() qwidget.cpp:8199
     #12 0x7f6d69887c1f in QWidgetPrivate::setVisible(bool) qwidget.cpp:8406
     #13 0x7f6d69775d23 in QWidget::setVisible(bool) qwidget.cpp:8314
     #14 0x7f6d695fb018 in QWidget::hide() qwidget.cpp:8179
     #15 0x7f6d6981a183 in QWidgetPrivate::handleClose(QWidgetPrivate::CloseMode) qwidget.cpp:8580
     #16 0x7f6d699e6fc6 in QWidgetWindow::closeEvent(QCloseEvent*) qwidgetwindow.cpp:871
     #17 0x7f6d52ef9f5d in QWindow::event(QEvent*) qwindow.cpp:2721
     #18 0x7f6d69a575f8 in QWidgetWindow::event(QEvent*) qwidgetwindow.cpp:398
     #19 0x7f6d690b2491 in QApplicationPrivate::notify_helper(QObject*, QEvent*) qapplication.cpp:3309
     #20 0x7f6d69132a3a in QApplication::notify(QObject*, QEvent*) qapplication.cpp:3259
     #21 0x7f6d40c1da6a in QCoreApplication::notifyInternal2(QObject*, QEvent*) qcoreapplication.cpp:1111
     #22 0x7f6d40c205b3 in QCoreApplication::sendSpontaneousEvent(QObject*, QEvent*) qcoreapplication.cpp:1565
     #23 0x7f6d5287415b in QGuiApplicationPrivate::processCloseEvent(QWindowSystemInterfacePrivate::CloseEvent*) qguiapplication.cpp:2911
     #24 0x7f6d528b543f in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) qguiapplication.cpp:2259
     #25 0x7f6d52fb5b02 in QWindowSystemEventHandler::sendEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) qwindowsysteminterface.cpp:190
     #26 0x7f6d52fb5b02 in bool QWindowSystemHelper<QWindowSystemInterface::SynchronousDelivery>::handleEvent<QWindowSystemInterfacePrivate::CloseEvent, QWindow*>(QWindow*) qwindowsysteminterface.cpp:102
     #27 0x7f6d52fb5b02 in handleWindowSystemEvent<QWindowSystemInterfacePrivate::CloseEvent, QWindowSystemInterface::SynchronousDelivery, QWindow*> qwindowsysteminterface.cpp:138
     #28 0x7f6d52fb5b02 in bool QWindowSystemInterface::handleCloseEvent<QWindowSystemInterface::SynchronousDelivery>(QWindow*) qwindowsysteminterface.cpp:351
     #29 0x7f6d52cb6f1e in QPlatformWindow::close() qplatformwindow.cpp:348
     #30 0x7f6d52e7e158 in QWindow::close() qwindow.cpp:2449
     #31 0x7f6d6981b4d2 in QWidgetPrivate::close() qwidget.cpp:8632
     #32 0x7f6d698205c6 in QWidget::~QWidget() qwidget.cpp:1508
     #33 0x7f6d6b4f6bf0 in QDialogButtonBox::~QDialogButtonBox() qdialogbuttonbox.cpp:496

To fix, don't delay the Q_Q to until after the ignoreShowAndHide
check, since that woould be brittle. Instead, do as we for signal/slot
connections, which we disconnect explicitly in ~QDialogButtonBox(),
and delete the EventFilter explicitly there, too. This way, it's more
natural, and also prevents all those useless event filter invocations
from having to be processed later on.

Amends aff0915. The original code,
using QDialogButtonBox::eventFilter(), was not affected, since by the
time QDialogButtonBox was demoted to QWidget, QWidget::eventFilter(),
not QDialogButtonBox::eventFilter() would been invoked. Which just
goes to show that one needs to be very careful with delegating too
much responsibilites to the Private class, as it lives, fully derived,
until ~QWidget() executes.

Pick-to: 6.5
Change-Id: I04f36fd6d7d160932bfe1494fdff464786b85047
Reviewed-by: Axel Spoerl <axel.spoerl@qt.io>
(cherry picked from commit dceff0a)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
(cherry picked from commit 6753ab4)
qtprojectorg pushed a commit that referenced this pull request Apr 13, 2025
…veButtonsFromMenuBar()

The function can be called from ~QMdiSubwindow(), and we checked for
QWidgetPrivate::data.in_destructor before proceeding with the removal
of buttons from the menubar, but we called
QPointer<QMdiSubwindow>::data()->window(), which, at this point in
time, had already been demoted to a QWidget:

Says UBSan:

  qpointer.h:75:14: runtime error: downcast of address 0x6040000aca10 which does not point to an object of type 'QMdiSubWindow'
   0x6040000aca10: note: object is of type 'QWidget'
    00 00 00 00  28 01 99 bc ff 7e 00 00  80 dc 0f 00 90 61 00 00  d8 02 99 bc ff 7e 00 00  00 00 be be
                 ^~~~~~~~~~~~~~~~~~~~~~~
                 vptr for 'QWidget'
       #0 0x7effb955f95a in QPointer<QMdiSubWindow>::data() const qpointer.h:75
       #1 0x7effb955f95a in QPointer<QMdiSubWindow>::operator->() const qpointer.h:79
       #2 0x7effb955f95a in QMdi::ControlContainer::removeButtonsFromMenuBar(QMenuBar*) qmdisubwindow.cpp:795
       #3 0x7effb9563031 in QMdi::ControlContainer::~ControlContainer() qmdisubwindow.cpp:717
       #4 0x7effb9566595 in QMdi::ControlContainer::~ControlContainer() qmdisubwindow.cpp:723
       #5 0x7eff8f4f2b7a in QObjectPrivate::deleteChildren() qobject.cpp:2226
       #6 0x7effb7bf732d in QWidget::~QWidget() qwidget.cpp:1557
       #7 0x7effb95cc02c in QMdiSubWindow::~QMdiSubWindow() qmdisubwindow.cpp:2254
       #8 0x7effb95cc1d5 in QMdiSubWindow::~QMdiSubWindow() qmdisubwindow.cpp:2254
       #9 0x7eff8f4f2b7a in QObjectPrivate::deleteChildren() qobject.cpp:2226
       #10 0x7effb7bf732d in QWidget::~QWidget() qwidget.cpp:1557
       #11 0x7effb7bffba5 in QWidget::~QWidget() qwidget.cpp:1584
       #12 0x7eff8f4f2b7a in QObjectPrivate::deleteChildren() qobject.cpp:2226
       #13 0x7effb7bf732d in QWidget::~QWidget() qwidget.cpp:1557
       #14 0x7effb85f0dc5 in QFrame::~QFrame() qframe.cpp:235
       #15 0x7effb859c747 in QAbstractScrollArea::~QAbstractScrollArea() qabstractscrollarea.cpp:478
       #16 0x7effb93c08a6 in QMdiArea::~QMdiArea() qmdiarea.cpp:1703
       #17 0x7effb93c0e55 in QMdiArea::~QMdiArea() qmdiarea.cpp:1703
       #18 0x7eff8f4f2b7a in QObjectPrivate::deleteChildren() qobject.cpp:2226
       #19 0x7effb7bf732d in QWidget::~QWidget() qwidget.cpp:1557
       #20 0x7effb920a425 in QMainWindow::~QMainWindow() qmainwindow.cpp:338

Fix by deleting the ControlContainer already from ~QMdiSubwindow(),
ie. when we have not yet been demoted to QWidget.

Amends the start of the public history.

Pick-to: 6.8 6.5 5.15
Change-Id: Ia43c857bc1842b2b4957cc79e00f790b045d8f94
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
(cherry picked from commit 2e3d391)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
qtprojectorg pushed a commit that referenced this pull request Apr 14, 2025
…veButtonsFromMenuBar()

The function can be called from ~QMdiSubwindow(), and we checked for
QWidgetPrivate::data.in_destructor before proceeding with the removal
of buttons from the menubar, but we called
QPointer<QMdiSubwindow>::data()->window(), which, at this point in
time, had already been demoted to a QWidget:

Says UBSan:

  qpointer.h:75:14: runtime error: downcast of address 0x6040000aca10 which does not point to an object of type 'QMdiSubWindow'
   0x6040000aca10: note: object is of type 'QWidget'
    00 00 00 00  28 01 99 bc ff 7e 00 00  80 dc 0f 00 90 61 00 00  d8 02 99 bc ff 7e 00 00  00 00 be be
                 ^~~~~~~~~~~~~~~~~~~~~~~
                 vptr for 'QWidget'
       #0 0x7effb955f95a in QPointer<QMdiSubWindow>::data() const qpointer.h:75
       #1 0x7effb955f95a in QPointer<QMdiSubWindow>::operator->() const qpointer.h:79
       #2 0x7effb955f95a in QMdi::ControlContainer::removeButtonsFromMenuBar(QMenuBar*) qmdisubwindow.cpp:795
       #3 0x7effb9563031 in QMdi::ControlContainer::~ControlContainer() qmdisubwindow.cpp:717
       #4 0x7effb9566595 in QMdi::ControlContainer::~ControlContainer() qmdisubwindow.cpp:723
       #5 0x7eff8f4f2b7a in QObjectPrivate::deleteChildren() qobject.cpp:2226
       #6 0x7effb7bf732d in QWidget::~QWidget() qwidget.cpp:1557
       #7 0x7effb95cc02c in QMdiSubWindow::~QMdiSubWindow() qmdisubwindow.cpp:2254
       #8 0x7effb95cc1d5 in QMdiSubWindow::~QMdiSubWindow() qmdisubwindow.cpp:2254
       #9 0x7eff8f4f2b7a in QObjectPrivate::deleteChildren() qobject.cpp:2226
       #10 0x7effb7bf732d in QWidget::~QWidget() qwidget.cpp:1557
       #11 0x7effb7bffba5 in QWidget::~QWidget() qwidget.cpp:1584
       #12 0x7eff8f4f2b7a in QObjectPrivate::deleteChildren() qobject.cpp:2226
       #13 0x7effb7bf732d in QWidget::~QWidget() qwidget.cpp:1557
       #14 0x7effb85f0dc5 in QFrame::~QFrame() qframe.cpp:235
       #15 0x7effb859c747 in QAbstractScrollArea::~QAbstractScrollArea() qabstractscrollarea.cpp:478
       #16 0x7effb93c08a6 in QMdiArea::~QMdiArea() qmdiarea.cpp:1703
       #17 0x7effb93c0e55 in QMdiArea::~QMdiArea() qmdiarea.cpp:1703
       #18 0x7eff8f4f2b7a in QObjectPrivate::deleteChildren() qobject.cpp:2226
       #19 0x7effb7bf732d in QWidget::~QWidget() qwidget.cpp:1557
       #20 0x7effb920a425 in QMainWindow::~QMainWindow() qmainwindow.cpp:338

Fix by deleting the ControlContainer already from ~QMdiSubwindow(),
ie. when we have not yet been demoted to QWidget.

Amends the start of the public history.

Pick-to: 6.5 5.15
Change-Id: Ia43c857bc1842b2b4957cc79e00f790b045d8f94
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
(cherry picked from commit 2e3d391)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
(cherry picked from commit 0859415)
qtprojectorg pushed a commit that referenced this pull request Dec 16, 2025
During application shutdown our global static list of loggers may
be torn down, and then some other part of Qt issues logging during
its own destruction.

For example, QThreadStorage will emit:

  QThreadStorage: entry 1 destroyed before end of thread 0x106432bd0

which would crash:

    frame #7: 0x000000010a8d97a8 QtCore`qt_assert_x(where="Type *QGlobalStatic<QtGlobalStatic::Holder<QTest::(anonymous namespace)::Q_QGS_loggers>>::operator->() [Holder = QtGlobalStatic::Holder<QTest::(anonymous namespace)::Q_QGS_loggers>]", what="The global static was used after being destroyed", file="/Users/torarne/dev/qt/qtbase/src/corelib/global/qglobalstatic.h", line=88) at qassert.cpp:126:14
    frame #8: 0x0000000101016e5c QtTest`QGlobalStatic<QtGlobalStatic::Holder<QTest::(anonymous namespace)::Q_QGS_loggers>>::operator->(this=0x00000001010808c8) at qglobalstatic.h:87:9
    frame #9: 0x0000000101018f78 QtTest`QTest::messageHandler(type=QtWarningMsg, context=0x000000016fdfb848, message=0x000000016fdfb790) at qtestlog.cpp:308:30
    frame #10: 0x000000010a131018 QtCore`qt_message_print(msgType=QtWarningMsg, context=0x000000016fdfb848, message=0x000000016fdfb790) at qlogging.cpp:2133:9
    frame #11: 0x000000010a12bc50 QtCore`qt_message(msgType=QtWarningMsg, context=0x000000016fdfb848, msg="QThreadStorage: entry %d destroyed before end of thread %p", ap="\U00000001") at qlogging.cpp:411:5
    frame #12: 0x000000010a8d9904 QtCore`QMessageLogger::warning(this=0x000000016fdfba30, msg="QThreadStorage: entry %d destroyed before end of thread %p") const at qlogging.cpp:651:5
    frame #13: 0x000000010a62b8b8 QtCore`QThreadStoragePrivate::finish(tls=0x00000008c6c102e8) at qthreadstorage.cpp:169:17
    frame #14: 0x000000010a617aec QtCore`QThreadPrivate::finish()::$_0::operator()(this=0x000000016fdfbb20) const at qthread_unix.cpp:468:9
    frame #15: 0x000000010a6159a4 QtCore`void (anonymous namespace)::terminate_on_exception<QThreadPrivate::finish()::$_0>(t=0x000000016fdfbb20) at qthread_unix.cpp:380:5
    frame #16: 0x000000010a615960 QtCore`QThreadPrivate::finish(this=0x00000008c707c000) at qthread_unix.cpp:450:5
    frame #17: 0x000000010a617190 QtCore`destroy_current_thread_data(data=0x00000008c6c10280) at qthread_unix.cpp:172:19
    frame #18: 0x000000010a617330 QtCore`(anonymous namespace)::QThreadDataDestroyer::EarlyMainThread::~EarlyMainThread(this=0x000000010aa9e640) at qthread_unix.cpp:232:17
    frame #19: 0x000000010a6172b4 QtCore`(anonymous namespace)::QThreadDataDestroyer::EarlyMainThread::~EarlyMainThread(this=0x000000010aa9e640) at qthread_unix.cpp:229:9
    frame #20: 0x0000000181ac542c libsystem_c.dylib`__cxa_finalize_ranges + 480
    frame #21: 0x0000000181ac51ec libsystem_c.dylib`exit + 44

Pick-to: 6.11 6.10 6.8
Change-Id: Ie85788e49a34aa75fe44b52fb488bd0e763b78f9
Reviewed-by: Tim Blechmann <tim.blechmann@qt.io>
qtprojectorg pushed a commit that referenced this pull request Dec 16, 2025
During application shutdown our global static list of loggers may
be torn down, and then some other part of Qt issues logging during
its own destruction.

For example, QThreadStorage will emit:

  QThreadStorage: entry 1 destroyed before end of thread 0x106432bd0

which would crash:

    frame #7: 0x000000010a8d97a8 QtCore`qt_assert_x(where="Type *QGlobalStatic<QtGlobalStatic::Holder<QTest::(anonymous namespace)::Q_QGS_loggers>>::operator->() [Holder = QtGlobalStatic::Holder<QTest::(anonymous namespace)::Q_QGS_loggers>]", what="The global static was used after being destroyed", file="/Users/torarne/dev/qt/qtbase/src/corelib/global/qglobalstatic.h", line=88) at qassert.cpp:126:14
    frame #8: 0x0000000101016e5c QtTest`QGlobalStatic<QtGlobalStatic::Holder<QTest::(anonymous namespace)::Q_QGS_loggers>>::operator->(this=0x00000001010808c8) at qglobalstatic.h:87:9
    frame #9: 0x0000000101018f78 QtTest`QTest::messageHandler(type=QtWarningMsg, context=0x000000016fdfb848, message=0x000000016fdfb790) at qtestlog.cpp:308:30
    frame #10: 0x000000010a131018 QtCore`qt_message_print(msgType=QtWarningMsg, context=0x000000016fdfb848, message=0x000000016fdfb790) at qlogging.cpp:2133:9
    frame #11: 0x000000010a12bc50 QtCore`qt_message(msgType=QtWarningMsg, context=0x000000016fdfb848, msg="QThreadStorage: entry %d destroyed before end of thread %p", ap="\U00000001") at qlogging.cpp:411:5
    frame #12: 0x000000010a8d9904 QtCore`QMessageLogger::warning(this=0x000000016fdfba30, msg="QThreadStorage: entry %d destroyed before end of thread %p") const at qlogging.cpp:651:5
    frame #13: 0x000000010a62b8b8 QtCore`QThreadStoragePrivate::finish(tls=0x00000008c6c102e8) at qthreadstorage.cpp:169:17
    frame #14: 0x000000010a617aec QtCore`QThreadPrivate::finish()::$_0::operator()(this=0x000000016fdfbb20) const at qthread_unix.cpp:468:9
    frame #15: 0x000000010a6159a4 QtCore`void (anonymous namespace)::terminate_on_exception<QThreadPrivate::finish()::$_0>(t=0x000000016fdfbb20) at qthread_unix.cpp:380:5
    frame #16: 0x000000010a615960 QtCore`QThreadPrivate::finish(this=0x00000008c707c000) at qthread_unix.cpp:450:5
    frame #17: 0x000000010a617190 QtCore`destroy_current_thread_data(data=0x00000008c6c10280) at qthread_unix.cpp:172:19
    frame #18: 0x000000010a617330 QtCore`(anonymous namespace)::QThreadDataDestroyer::EarlyMainThread::~EarlyMainThread(this=0x000000010aa9e640) at qthread_unix.cpp:232:17
    frame #19: 0x000000010a6172b4 QtCore`(anonymous namespace)::QThreadDataDestroyer::EarlyMainThread::~EarlyMainThread(this=0x000000010aa9e640) at qthread_unix.cpp:229:9
    frame #20: 0x0000000181ac542c libsystem_c.dylib`__cxa_finalize_ranges + 480
    frame #21: 0x0000000181ac51ec libsystem_c.dylib`exit + 44

Pick-to: 6.10 6.8
Change-Id: Ie85788e49a34aa75fe44b52fb488bd0e763b78f9
Reviewed-by: Tim Blechmann <tim.blechmann@qt.io>
(cherry picked from commit 5c8cd2a)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
qtprojectorg pushed a commit that referenced this pull request Dec 17, 2025
During application shutdown our global static list of loggers may
be torn down, and then some other part of Qt issues logging during
its own destruction.

For example, QThreadStorage will emit:

  QThreadStorage: entry 1 destroyed before end of thread 0x106432bd0

which would crash:

    frame #7: 0x000000010a8d97a8 QtCore`qt_assert_x(where="Type *QGlobalStatic<QtGlobalStatic::Holder<QTest::(anonymous namespace)::Q_QGS_loggers>>::operator->() [Holder = QtGlobalStatic::Holder<QTest::(anonymous namespace)::Q_QGS_loggers>]", what="The global static was used after being destroyed", file="/Users/torarne/dev/qt/qtbase/src/corelib/global/qglobalstatic.h", line=88) at qassert.cpp:126:14
    frame #8: 0x0000000101016e5c QtTest`QGlobalStatic<QtGlobalStatic::Holder<QTest::(anonymous namespace)::Q_QGS_loggers>>::operator->(this=0x00000001010808c8) at qglobalstatic.h:87:9
    frame #9: 0x0000000101018f78 QtTest`QTest::messageHandler(type=QtWarningMsg, context=0x000000016fdfb848, message=0x000000016fdfb790) at qtestlog.cpp:308:30
    frame #10: 0x000000010a131018 QtCore`qt_message_print(msgType=QtWarningMsg, context=0x000000016fdfb848, message=0x000000016fdfb790) at qlogging.cpp:2133:9
    frame #11: 0x000000010a12bc50 QtCore`qt_message(msgType=QtWarningMsg, context=0x000000016fdfb848, msg="QThreadStorage: entry %d destroyed before end of thread %p", ap="\U00000001") at qlogging.cpp:411:5
    frame #12: 0x000000010a8d9904 QtCore`QMessageLogger::warning(this=0x000000016fdfba30, msg="QThreadStorage: entry %d destroyed before end of thread %p") const at qlogging.cpp:651:5
    frame #13: 0x000000010a62b8b8 QtCore`QThreadStoragePrivate::finish(tls=0x00000008c6c102e8) at qthreadstorage.cpp:169:17
    frame #14: 0x000000010a617aec QtCore`QThreadPrivate::finish()::$_0::operator()(this=0x000000016fdfbb20) const at qthread_unix.cpp:468:9
    frame #15: 0x000000010a6159a4 QtCore`void (anonymous namespace)::terminate_on_exception<QThreadPrivate::finish()::$_0>(t=0x000000016fdfbb20) at qthread_unix.cpp:380:5
    frame #16: 0x000000010a615960 QtCore`QThreadPrivate::finish(this=0x00000008c707c000) at qthread_unix.cpp:450:5
    frame #17: 0x000000010a617190 QtCore`destroy_current_thread_data(data=0x00000008c6c10280) at qthread_unix.cpp:172:19
    frame #18: 0x000000010a617330 QtCore`(anonymous namespace)::QThreadDataDestroyer::EarlyMainThread::~EarlyMainThread(this=0x000000010aa9e640) at qthread_unix.cpp:232:17
    frame #19: 0x000000010a6172b4 QtCore`(anonymous namespace)::QThreadDataDestroyer::EarlyMainThread::~EarlyMainThread(this=0x000000010aa9e640) at qthread_unix.cpp:229:9
    frame #20: 0x0000000181ac542c libsystem_c.dylib`__cxa_finalize_ranges + 480
    frame #21: 0x0000000181ac51ec libsystem_c.dylib`exit + 44

Pick-to: 6.8
Change-Id: Ie85788e49a34aa75fe44b52fb488bd0e763b78f9
Reviewed-by: Tim Blechmann <tim.blechmann@qt.io>
(cherry picked from commit 5c8cd2a)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
(cherry picked from commit b33274a)
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