Commit Graph

90 Commits

Author SHA1 Message Date
Alexey Edelev
28c9625d00 Fix CMP0099 impact - disallow propagating internal linker options
CMP0099 changes the way of LINK_ONLY genex works. With CMP0099 set to
OLD LINK_ONLY genex only links the exact library binary/archive without
propagating other interface options from the target. This feature was
exploited by PlatformXInternal targets to avoid propagating of their
linker options. Nowadays when CMP0099 is forced to NEW by Qt scripts,
including user-facing, we cannot rely on LINK_ONLY genex.

Introduce _qt_is_internal_target property that is set for all Qt
executables and explicitly limits the propagation of the linker
options from PlatformXInternal targets.

Pick-to: 6.5 6.6
Fixes: QTBUG-113641
Change-Id: I3a0ecddb65886e435073feb24c1b47035130ba70
Reviewed-by: Alexandru Croitor (OOO) <alexandru.croitor@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
2023-06-16 20:58:02 +02:00
Alexey Edelev
4e74fa8119 Fix typo in qt_internal_add_global_definition
Fix the argument prefix that is used in the cmake_parse_arguments call.

Pick-to: 6.5 6.6
Change-Id: Ie02bdf7d2769ce084b0d173c1e8152ca6fc4fe53
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2023-06-14 16:18:55 +02:00
Amir Masoud Abdol
585dd9d8d5 Add NOMINMAX to PlatformCommonInternal
By not explicitly disabling min/max macros of `windows.h`, we may see
some unintended substitutions. This is especially important now that we
are moving toward enabling Unity Build, and some of the constructs for
manually dealing with this issue, eg., `#ifdef max`, `#undef max`, might
not make it to the pool, and as a result we get build failure.

Pick-to: 6.5
Change-Id: Ie3c31aebe00300126a2ac3a6044876ab92d5d99c
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2023-05-31 16:37:22 +02:00
Christophe Marin
b53bf18280 CMake: Fix a typo in QtModuleHelpers.cmake
Rename is_staitc_lib_during_static_qt_build to
is_static_lib_during_static_qt_build.

Pick-to: 6.5 6.2
Change-Id: Iec0f4d5d025e07a857a086e960eaf7b6fa2638a5
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2023-05-02 12:26:26 +02:00
Tor Arne Vestbø
c91ae574ed Disable objc_msgSend stubs in static libs to maintain Xcode < 14 compat
Xcode 14's Clang will emit objc_msgSend stubs by default, which ld from
earlier Xcode versions will fail to understand. Disable these stubs
explicitly for static libs, for as long as we support Xcode < 14.

 See https://github.com/llvm/llvm-project/issues/56034

Pick-to: 6.5
Fixes: QTBUG-112820
Change-Id: Id762873d61b9d147bf3eb6292297e7b80b7393e1
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2023-04-13 19:37:55 +02:00
Amir Masoud Abdol
f5aa8317d0 Add -Wno-error=stringop-overread to warnings_are_errors_flags
Besides `stringop-overflow`, the `stringop-overread` is also buggy, and
it has some false positives. If not silenced, this will break the
unity build as several warnings are being emitted in qmetaobject.cpp,
etc.

Pick-to: 6.5
Change-Id: I708c81057c01d8d8fc9694c394c89602a2f6867b
Reviewed-by: Alexey Edelev <alexey.edelev@qt.io>
2023-04-07 16:06:22 +02:00
Marc Mutz
0ba063f436 Enable QT_NO_AS_CONST globally
All current modules are free of qAsConst, make sure new ones will be,
too.

Change-Id: Iae3c67bca86eddf62ae664b00ff39a9b513d7290
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
2023-01-05 15:09:49 +01:00
Marc Mutz
e1b76ee928 Remove the last in-tree user of qExchange() and mark all of Qt free of it
We've ported all qExchange() to std::exchange by now, across all
modules, but the one in QScopedValueRollback was left behind, because
it requires C++20's version of std::exchange (constexpr).

Since q20::exchange was not approved, replace the qExchange() here
with two moves and add a comment to port to std::exchange() once we
can depend on C++20.

Then add QT_NO_QEXCHANGE to avoid new uses from creeping in.

Change-Id: I488e252433e78fb2766639dbe77a22a55196cfd1
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
2022-12-14 19:07:19 +01:00
Giuseppe D'Angelo
365904085e QFile: make constructors taking a path explicit
This is a level A SIC, as it breaks

  QFile f = "/some/path";

In general, it's not a good idea to have this implicit conversion. A
QFile is not a representation of a path, so the conversion should be
explicit.

I am going to keep the current semantics (implicit conversion) up to and
including Qt 6.8 (LTS). Starting from 6.9, the constructor will be
unconditionally explicit. This is deliberate, and done in order to make
users fix their code while staying in Qt 6, rather than encountering
this issue (and countless many more) if and when they upgrade from Qt 6
to Qt 7. In the meanwhile, users can opt-in to the new semantics by
defining a macro.

[ChangeLog][QtCore][QFile] The QFile constructors that take a path are
going to become unconditionally `explicit` in Qt 6.9. Code like `QFile f
= "/path";` will need to be ported to equivalent one (e.g. `QFile
f{"/path/"}`). This has been done in order to prevent a category of
mistakes when passing strings or paths to functions that actually take a
QFile. Users can opt-in to this change even before Qt 6.9 by defining
the QT_EXPLICIT_QFILE_CONSTRUCTION_FROM_PATH macro before including any
Qt header.

Change-Id: I065a09b9ce5d24c352664df0d48776545f6a0d8e
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2022-10-29 23:22:25 +02:00
Volker Hilsheimer
f5de333192 MSVC: Disable conformance check that breaks with default WinSDK
The default Windows SDK installed for VC++ 2022 is 10.0.19041, and still
has the issue described here, breaking builds if -Zcpreprocessor is set:

https://developercommunity.visualstudio.com/t/stdc17-generates-warning-compiling-windowsh/1249671

The issue might be fixed in SDK version 2104 (10.0.20348.0), but until
that is the default SDK when installing the compiler, turn that
conformance check off again.

Partially reverts commit 8cb832090a

Change-Id: Ib22f8d196b978274ce31be727826b902e79aaa99
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>
2022-10-19 17:02:36 +02:00
Yuhang Zhao
ade68c9949 MSVC: Disable buggy conformance check
/Zc:lambda seems buggy. Although in my experiments it works well
for 99% Qt repos, it seems some tests will trigger the bug and it
also blocks some new commits. So disable it for now, it's not stable
enough.

Now that this check is disabled, the workaround for tst_qstringapisymmetry
is also not needed anymore, so remove the workaround as well.

Partially reverts commit 8cb832090a

Change-Id: Icf0ecbbaa6262522470e5f5dea05705985ab18f1
Reviewed-by: Jörg Bornemann <joerg.bornemann@qt.io>
2022-10-18 19:31:25 +08:00
Yuhang Zhao
8cb832090a MSVC: Enable all possible conformance checks
For the full list, please refer to [1].

Needed to change the qstringapisymmetry unit test:
In theory we don't need the array to be static and it did compile
without any problems so far, indeed. However, with this patch applied,
MSVC complains that the lambda function below can't access the array.
I don't understand why, because we use [&] in the lambda and it should
capture all the variables in theory, but in reality it failed to
capture this variable in the end. And making the variable static
solves this issue. Maybe it's a MSVC bug.

Already tested locally. Most Qt repos build without any issues,
only very few repos are not tested, as my local environment
can't build them.

[1] https://docs.microsoft.com/en-us/cpp/build/reference/zc-conformance?view=msvc-170

Change-Id: I658427aa171ee1ae26610d0c68640b2f50789f15
Reviewed-by: Marc Mutz <marc.mutz@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Jörg Bornemann <joerg.bornemann@qt.io>
2022-10-15 13:34:20 +00:00
Lucie Gérard
32df595275 Change the license of all CMakeLists.txt and *.cmake files to BSD
Task-number: QTBUG-105718
Change-Id: I5d3ef70a31235868b9be6cb479b7621bf2a8ba39
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Jörg Bornemann <joerg.bornemann@qt.io>
2022-08-23 23:58:42 +02:00
Lucie Gérard
fb1b20eab3 Add license headers to cmake files
CMakeLists.txt and .cmake files of significant size
(more than 2 lines according to our check in tst_license.pl)
now have the copyright and license header.

Existing copyright statements remain intact

Task-number: QTBUG-88621
Change-Id: I3b98cdc55ead806ec81ce09af9271f9b95af97fa
Reviewed-by: Jörg Bornemann <joerg.bornemann@qt.io>
2022-08-03 17:14:55 +02:00
Alexandru Croitor
976539b4af CMake: Create aliases for Internal targets using common function
Previously we did not create Qt6:: namespaced aliases.
This is needed as a workaround preparation for getting the package name
of a module target from one of it's properties.

Before it would fail in qtinterfaceframework because
ifvehiclefunctions-simulation-server uses PUBLIC_LIBRARIES
in its qt_internal_add_app call, and because _add_app does not handle
such an option, some weirdness in qtbase's _add_app -> _add_executable
-> _extend_executable -> _register_target_dependencies ended up trying
to register PlatformAppInternal as package dependency.
That issue will be handled in separate changes.

Pick-to: 6.4
Task-number: QTBUG-104998
Change-Id: Ifd03528c95b08cb6837a6aaa26cbf97c0cbabbb4
Reviewed-by: Alexey Edelev <alexey.edelev@qt.io>
2022-07-25 19:52:34 +02:00
Yuhang Zhao
ce9799e4c4 MSVC: Fix the CET parameters
To enable CET for MSVC, only passing "/CETCOMPAT" to
the linker should be sufficient.

Enabling generation of EH Continuation (EHCONT) metadata
is additional protection and should not be necessary.
It also requires all the dependencies to be re-compiled
with EHCONT enabled, otherwise the linker will refuse
to link the obj files. However, this is rather hard
to achieve if your application depends on many 3rd-party
libraries, so to let people enable CET more freely,
we don't enable EHCONT guard by default.

Pick-to: 6.4
Change-Id: Iba08a5ec56c474d291991fb751a0de764719bd85
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2022-07-20 19:16:00 +08:00
Tor Arne Vestbø
e27a0d5a0f Disable bitcode for iOS
It's deprecated as of Xcode 14, and generates a warning message if a
project explicitly enables bitcode. The App Store no longer accepts
bitcode submissions from Xcode 14.

Pick-to: 6.2 6.3 6.4 5.15
Change-Id: Ib1f9d5114ca4d8b1845ecc7a9de0473ee015db33
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2022-07-07 17:02:37 +02:00
Yuhang Zhao
6af63c8256 CMake: Update description of the Intel CET feature
Use a more detailed description instead.

Also adds the missing part of the GCC parameter.

Amends commit qtbase/42287255d38bf493b5731396b99bc9cd7b1baba4

References:
https://gcc.gnu.org/onlinedocs/gcc-12.1.0/gcc/Instrumentation-Options.html#Instrumentation-Options

Change-Id: I94a22ac7dfa80644e92fe01021f7868dfa02dd69
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2022-07-06 00:31:47 +08:00
Thiago Macieira
500c116ced CMake: disable the attempt to force SIMD on iOS simulator builds
This will stop working with the next commit, which merges all basic x86
SIMD intrinsics into one configure test. As a result, linking almost
anything graphical on iOS (which is almost everything) causes the linker
to fail with undefined references to SIMD-optimized versions that didn't
get compiled.

Change-Id: Ib42b3adc93bf4d43bd55fffd16c288f4104a6ccc
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
2022-06-27 20:28:41 -07:00
Kai Köhne
04cc705947 CMake: Fix typos
Found by codespell

Pick-to: 6.4
Change-Id: I4907e423b6b345acf82f2d7e0ed62479719d694e
Reviewed-by: Jörg Bornemann <joerg.bornemann@qt.io>
2022-06-13 15:37:36 +02:00
Ville Voutilainen
5431b40ee8 Avoid some new clang 14 warnings on Android NDK 24 build
Task-number: QTBUG-99663
Change-Id: I1aa408ba468342e2fac2323ae91ff650b871c563
Reviewed-by: Assam Boudjelthia <assam.boudjelthia@qt.io>
Reviewed-by: Marc Mutz <marc.mutz@qt.io>
2022-05-27 17:28:37 +03:00
Yuhang Zhao
42287255d3 Build system: Allow user to enable Intel CET
MSVC:
https://docs.microsoft.com/en-us/cpp/build/reference/guard-enable-eh-continuation-metadata?view=msvc-170
https://docs.microsoft.com/en-us/cpp/build/reference/cetcompat?view=msvc-170

GCC:
https://gcc.gnu.org/onlinedocs/gcc-11.2.0/gcc/Instrumentation-Options.html

Clang:
Don't know where's the documentation but should use
the same parameter with GCC.

Change-Id: I654618e45743a5ad1394c930932b9d0044572725
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2022-04-06 13:06:24 +08:00
Kai Köhne
dfe6601974 Bootstrap: Make compiler warnings fatal
Prevent compiler warnings from creeping into the bootstrap library.

Pick-to: 6.3
Change-Id: I8054416564c91fee256cad616911dd4ad231d0df
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
Reviewed-by: Jörg Bornemann <joerg.bornemann@qt.io>
2022-03-02 11:03:44 +01:00
Alexey Edelev
fd3341a74e Add qt_internal_undefine_global_definition function
qt_internal_undefine_global_definition disables an internal global
definition that is defined by the qt_internal_add_global_definition
function for a specific target.

Remove the ability to set the custom "undefine" flag for the
definitions since it's hard to control it using the introduced
function.

Pick-to: 6.2 6.3
Task-number: QTBUG-100334
Change-Id: Ic1637d97aa51bbdd06c5b191c57a941aa208d4dc
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
2022-02-02 16:45:37 +01:00
Alexey Edelev
1d28fd7a9c Restore missing Qt definitions
Restore the 'QT_NO_JAVA_STYLE_ITERATORS' and
'QT_NO_NARROWING_CONVERSIONS_IN_CONNECT' definitions for Qt
targets.

Add the function that adds global definitions for Qt targets according
to the provided scope and the target property-based switch to disable
the definition for a specific target.

Pick-to: 6.2 6.3
Task-number: QTBUG-100295
Change-Id: I28697e81f9aabc45c48d79aae1e5caea141e04e1
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Marc Mutz <marc.mutz@qt.io>
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2022-01-31 17:40:43 +01:00
Alexandru Croitor
d6066d53fa CMake: Fix detection of linker availability
Previously we passed flags like -ld-fuse=lld only to compile
calls, but not to the link call of a compile test project.

Make sure to pass it to the link call instead by using
check_cxx_source_compiles + CMAKE_REQUIRED_LINK_OPTIONS
instead of
check_cxx_compiler_flag.

Note the flag that is passed is still via passed via the
compiler launcher and not directly to the linker.

Remove duplicate flag handling code.

Pick-to: 6.2 6.3
Change-Id: I1bf90573904a9df83240b6debfee3cc9e425c6bb
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2022-01-18 14:28:57 +01:00
Marc Mutz
208cfad9ad Clang: don't error out on -Wdeprecated-enum-enum-conversion
Same treatment as is given to GCC further below.

Pick-to: 6.3 6.2
Change-Id: I3762c39a0b5d9add365ecf828b80d3ba432578c2
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
2022-01-18 04:07:14 +01:00
Alexey Edelev
28da24a1a6 Enable -bigobj by default for Qt
Add '-bigobj' for MSVC and '-Wa,-mbig-obj' for MINGW to the
PlatformCommonInternal compiler options.

Pick-to: 6.3
Change-Id: I706b83d189a116a3ab6f93d59593e237e66b0e2e
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2022-01-07 15:21:18 +01:00
Yuhang Zhao
d2a0202cda MSVC: Optimize global data to reduce binary size
Package global data in COMDAT sections for optimization.
According to the docs, this can significantly reduce the
size of the resulting binary executable.

I've tested build Qt with /Gw locally with and without
LTCG, the result shows /Gw can reduce the binary size
indeed, but not "significantly". The result also reveals
that exes can benefit much more from /Gw than dlls.
The result can be seen from the QTBUG-98894 bug report.

Microsoft Docs:
https://docs.microsoft.com/en-us/cpp/build/reference/gw-optimize-global-data?view=msvc-170

Task-number: QTBUG-98894
Change-Id: Ibce34c98e791e519d669a5fe39c0027d1459c382
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Kai Koehne <kai.koehne@qt.io>
2021-12-15 13:02:39 +08:00
Kai Köhne
6c10546a4b Enable warnings-are-errors for Visual Studio 2022
Change-Id: Id0b143f668f69481f6037f94aedbfd2e87331497
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>
2021-11-30 16:32:10 +01:00
Yuhang Zhao
405adf3348 Win32: Enable large address aware explicitly
Large address aware is enabled by default in 64-bit
compilers, but not 32-bit compilers. But Qt users
may build 32-bit Qt themself, in this case large
address aware is disabled in fact, and it may cause
some issues. So we pass /LARGEADDRESSAWARE to the
linker unconditionally to make sure large address
aware is enabled for both 32-bit and 64-bit builds.

Microsoft Docs:
https://docs.microsoft.com/en-us/cpp/build/reference/largeaddressaware-handle-large-addresses?view=msvc-170

Change-Id: Idb2603d9ba0ba9ef4477ce1c3174b7c7e8ba76f6
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>
2021-11-26 16:42:53 +08:00
Giuseppe D'Angelo
b6cbd9c43a QList: deprecate iterator<->pointer implicit conversions (2/3)
The constructor from a raw pointer should be
1) constexpr,
2) explicit, and
3) *private*.

We can do 1) without too much trouble.

2) is a (easy to fix) SIC in case of implicit conversions accidentally
relied upon from somewhere.

3) cannot be "easily" fixed by user code (they have to refactor), and
also, it's a BIC on Windows which encodes class members' access in
symbols. Someone may have been exporting some QList subclass, in turn
exporting the iterator classes, and therefore that someone now has the
constructors' symbols with a given access.

So, don't do 2+3 _just yet_ for user code, but set a deadline: Qt 6.5 is
the last that will support this. On Qt 6.6, we switch. All of this on
non-Windows, againt to avoid an ABI break. One can opt-in at any time
via a suitable define.

Given we have this define, use it to guard the other way around as well:
conversions from an iterator to a raw pointer should never be explicit
(there's std::to_address for this).

[ChangeLog][QtCore][QList] Converting a QList's iterator from and to a
raw pointer is deprecated, and will get removed in Qt 6.6. User code can
prepare for the change by defining QT_STRICT_QLIST_ITERATORS.

Change-Id: I0f34bfa3ac055c02af5a3ca159180304660dfc11
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2021-10-16 13:48:27 +02:00
Thiago Macieira
cb0ea39895 CMake: remove support for building Qt with the old Intel compiler
This hasn't worked for some time. It's not in our CI and I don't think
it was working at all. When I tried to build it, I ran into several
problems with C++17 and an Internal Compiler Error I did not have any
interest in working around.

After discussing with the Intel compiler team, it was decided that
fixing those issues in the old compiler is not going to happen. Instead,
their recommendation is to adopt the new LLVM-based compiler, which
the last commit added support for.

This commit does not remove qmake support for the old ICC. It's possible
someone is using qmake with a non-Qt6 project and ICC.

Change-Id: Icb2516126f674e7b8bb3fffd16ad6350ddbd49e5
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2021-10-13 12:49:49 -07:00
Thiago Macieira
63d80c7c4b CMake: add support for Intel's LLVM-based compiler
This includes a few cleanups to our .cmake files where it was easier to
combine existing sections of Clang / AppleClang that no longer needed to
be distinct.

icpx could be replaced with a shell script:
 exec `basename $0`/clang++ --intel "$@"

tst_qnumeric is not passing
FAIL!  : tst_QNumeric::classifyF() Compared values are not the same
   Actual   (qFpClassify(tiny / two)): 2
   Expected (FP_SUBNORMAL)           : 3
   Loc: [/home/tjmaciei/src/qt/qt6-icx/qtbase/tests/auto/corelib/global/qnumeric/tst_qnumeric.cpp(344)]
FAIL!  : tst_QNumeric::classifyD() Compared values are not the same
   Actual   (qFpClassify(tiny / two)): 2
   Expected (FP_SUBNORMAL)           : 3
   Loc: [/home/tjmaciei/src/qt/qt6-icx/qtbase/tests/auto/corelib/global/qnumeric/tst_qnumeric.cpp(344)]
FAIL!  : tst_QNumeric::floatDistance(denormal) Compared values are not the same
   Actual   (qFloatDistance(from, stop)): 0
   Expected (expectedDistance)          : 4194304
   Loc: [/home/tjmaciei/src/qt/qt6-icx/qtbase/tests/auto/corelib/global/qnumeric/tst_qnumeric.cpp(408)]
FAIL!  : tst_QNumeric::doubleDistance(denormal) Compared values are not the same
   Actual   (qFloatDistance(from, stop)): 0
   Expected (expectedDistance)          : 2251799813685248
   Loc: [/home/tjmaciei/src/qt/qt6-icx/qtbase/tests/auto/corelib/global/qnumeric/tst_qnumeric.cpp(408)]
P

Change-Id: Icb2516126f674e7b8bb3fffd16ad59431e8c3379
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2021-10-13 12:49:49 -07:00
Giuseppe D'Angelo
49cf0b9459 Re-enable QT_NO_NARROWING_CONVERSIONS_IN_CONNECT for Qt
This define used to be set for the entirety of the Qt build but
was lost during the qmake->CMake transition. Re-enable it.

Change-Id: Idc4cb6ada485158559485b60f62f76439550b255
Pick-to: 6.2
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
2021-10-13 04:09:21 +02:00
Lorn Potter
0e100a4d89 wasm: add simd support
Emscripten only supports
SSE1, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, and 128-bit AVX instruction
sets at this time.
https://emscripten.org/docs/porting/simd.html

Browsers might need to enable simd support in the advanced
configurations
about: config or chrome:flags

Enable by configuring Qt with -sse2

Pick-to: 6.2
Fixes: QTBUG-63924
Change-Id: Ifeafae20e199dee0d19689802ad20fd0bd424ca7
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
2021-10-05 11:30:06 +10:00
Joerg Bornemann
6e48d654d7 Don't force lld for Android when clang is used
This reverts commit 64c111e10f.

The claim of the commit message, that we cannot use the gold linker,
does not seem to be true (anymore?).  This is underlined by the fact
that CMake *forces* the gold linker for Android, whenever LTCG is
enabled (see Modules/Compiler/Clang.cmake as of CMake 3.21.1).

Change-Id: I90edac8555be4abdd44cd367228aeffb0d66b895
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
2021-08-20 17:19:20 +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
Alexandru Croitor
616c32be04 CMake: Fix bitcode linker flags not to be added on iOS
We shouldn't force add the bitcode linker flags to user projects.
And we don't link anything when building Qt for iOS itself, we only
archive object files into static libraries.

The final decision whether bitcode should be used is up to the Xcode
project. That is controlled by Xcode's ENABLE_BITCODE option.

Bitcode compile flags are still added when building Qt itself.

Amends a046833176

Pick-to: 6.1 6.2
Task-number: QTBUG-95199
Change-Id: I04c77f659b82269bb8010ea262b2e51f36e9def3
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2021-07-16 09:52:21 +02:00
Andreas Buhr
3818046204 fix warning in cborparser with gcc 11.1
Pick-to: 6.2
Change-Id: Ie8270f2b156b194dedd115a97b93f7f800af055e
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2021-07-07 22:07:13 +02:00
Kai Köhne
d0676874d6 MSVC: Enable warnings-are-errors for latest Visual Studio 2019
Also remove handling of older versions, because we only support
Visual Studio 2019 currently

Pick-to: 6.2
Change-Id: If66a46d970047fe25582e323df74e0a904ee92da
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
2021-06-23 12:49:19 +02:00
Giuseppe D'Angelo
648e9696d3 Disable -Werror=stringop-overflow on GCC >= 10
There's a number of upstream bugs that cause false positives;
do not make them errors.

Change-Id: I4151794d8d37177a47a34aef8d83accf4377d44a
Pick-to: 6.1 6.2
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2021-06-23 00:23:55 +02:00
Giuseppe D'Angelo
f29ff5dffb Add GCC 11 and C++20 workarounds
GCC 11.1 has a bug [1] in the preprocessor that leads to
-Wsuggest-override warnings being raised in random places, even under
pragmas that are supposed to suppress it. For some reason, NOT using the
integrated preprocessor fixes it, so add that flag as a workaround.

Also, GCC 11 introduces a family of warnings for C++20's deprecations of
mixed enum arithmetic, which we use all over the place. Avoid a hard
error for those warnings.

[1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100796

Change-Id: I3b2aefa385f191f207e7eb876bc1ed0b18fb342b
Pick-to: 6.1 6.2
Task-number: QTBUG-93360
Task-number: QTBUG-94059
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
Reviewed-by: Jarek Kobus <jaroslaw.kobus@qt.io>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
2021-06-18 15:14:02 +02:00
Allan Sandfeld Jensen
127f658cc9 Fix the win32-clang-msvc target
Detect clang-cl mkspec target

Pick-to: 6.2
Change-Id: If0ca31ae2da3b44a4e2bd116933007139cc02fdc
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2021-06-15 16:58:46 +02:00
Alexey Edelev
715041b663 Enable UNICODE for all Qt targets and Qt consumers by default
After discussion we decided to opt-out the UNICODE definintion
behavior. To disable UNICODE in user projects the
qt6_disable_unicode_defines function could be used.

Amends 5b64e5950c

[ChangeLog][CMake] Enables the UNICODE and _UNICODE definitions on
WIN32 platforms by default for all cmake projects to reflect the
qmake behavior. Use qt6_disable_unicode_defines function to disable
the default unicode definitions.

Pick-to: 6.1
Fixes: QTBUG-93895
Change-Id: Id70ff7dcf8c74f660ec851f8b950e1e3b94d9fb4
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2021-05-21 16:05:44 +02:00
Alexandru Croitor
393f45de90 CMake: Allow enabling Apple app extension API in other repos
It's needed in qtconnectivity, but currently the
qt_disable_apple_app_extension_api_only function is defined in
QtInternalTargets.cmake which is loaded only in qtbase.

Move the function to cmake/QtTargetHelpers.cmake.

Amends e189126f1a

Pick-to: 6.1
Change-Id: Ia2470e48a91385239394368780f5bbb223000113
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2021-04-23 16:50:55 +02:00
Li Xinwei
c7a27678d6 MSVC: define _CRT_SECURE_NO_WARNINGS for all internal CMake targets
In commit 013abe3206, I add
_CRT_SECURE_NO_WARNINGS definition for all Qt internal module targets,
to suppress MSVC warnings like:
warning C4996: 'strncpy': This function or variable may be unsafe.

However, when compiling some internal tools, such as qmake and qdoc,
such warnings also exist. To suppress this kind of warning entirely,
_CRT_SECURE_NO_WARNINGS definition should be added for all Qt internal
targets when using MSVC compiler.

Pick-to: 6.1
Change-Id: I9c37b20672f9d0f470e3e9ea847e5221f43bfc04
Reviewed-by: Yuhang Zhao <2546789017@qq.com>
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2021-04-20 21:19:32 +08:00
Alexandru Croitor
d962c9ff85 CMake: Make Platform a dependency for all Qt internal targets
In particular that influences BundledLibrary targets.

Most internal targets already depended transitively on Qt::Platform
via Qt::Core as a public dependency. This was not the case for
BundledLibrary targets which don't link to Qt::Core.

This led to compilation issues in user projects when targeting
WebAssembly, due to mismatched flags between a bundled Harfbuzz vs
a user project. Probably other subtle issues as well (e.g. none of the
Windows specific compile definitions were passed to bundled libs).

Bundled libraries depend on PlatformCommonInternal already, so make
PlatformCommonInternal turn depend on the public Platform target.
I thought that was already the case, but we merely relied on the
Qt::Core dependency.

Note that Qt::Core should still list Platform as a public dependency,
so it gets propagated to user projects.

Amends acf9b3a68b

Change-Id: Ida3b219818f89ec6eba2c2d92c5db65ad56bc5a4
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2021-03-19 12:52:49 +00:00
Alexey Edelev
e425a2a4b8 Tune compilation flags to reduce libraries size
Add '_WINDLL' definition for the MSVC compilers family.
Check the 'FEATURE_optimize_size' value before replacing compiler flags
in the qt_internal_add_optimize_full_flags function. This is required,
because Qt::Core and Qt::Gui modules lost their ability to shrink,
when selecting the appropriate build type or features.

Fixes: QTBUG-89952
Change-Id: I982c25ea84e4793b4006ead0ee516b3f3eb2a054
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2021-01-22 10:27:17 +01:00
Alexey Edelev
8b7894cb63 Move UNICODE and _UNICODE definitions to internal platform target
Move UNICODE and _UNICODE definitions from the public Qt::Platform
target to the private Qt::PlatformCommonInternal target.

Fixes: QTBUG-89951
Change-Id: Ib4c1c4cab74acda0a43c4ddb3cffd3954393dc89
Reviewed-by: Kai Koehne <kai.koehne@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
2021-01-19 19:10:41 +01:00