Windows has a problem relating to cross-DLL variable relocations: they
are not supported. Since QMetaObject's link to the parent class is done
via a pointer, every QMetaObject in a DLL or in the EXE that derives
from a class from another DLL (such as QObject) will be dynamically
initialized.
This commit changes the meta object pointers in QMetaObject::d from raw
pointers to a wrapper class SuperData, which is almost entirely source-
compatible with the pointer itself. On all systems except for Windows
with Qt 6, it's binary compatible with the current implementation.
But for Windows with Qt 6, this commit will store both the raw pointer
and a pointer to a function that returns the QMetaObject, with one of
them non-null only. For all meta objects constructed by moc, we store
the function pointer, which allows the staticMetaObject to be statically
intialized. For dynamic meta objects (QMetaObjectBuilder, QtDBus, QtQml,
ActiveQt), we'll store the actual raw pointer.
[ChangeLog][QtCore][QMetaObject] Some internal members of the
QMetaObject class have changed types. Those members are not public API
and thus should not cause source incompatibilities.
The macro QT_NO_DATA_RELOCATION existed in Qt 4 but was called
Q_NO_DATA_RELOCATION and only applied to Symbian. It was removed in
commit 24a72c4efa ("qglobal: Remove
symbian specific features").
Task-number: QTBUG-38876
Fixes: QTBUG-69963
Change-Id: Id92f4a61915b49ddaee6fffd14ae1cf615525e92
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
Adds an enumName to QMetaEnum to carry the name of the enum since for
flags that doesn't match the name of the Qt type, but is needed if the
flag is scoped.
Change-Id: I1c0f77eb9e40e6fd1eb6a59bea77caf0f33fcf43
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
Consistent with other Unix platforms, and internally consistent between tests,
as a lot of tests were already applying CONFIG -= app_bundle manually.
Change-Id: Icd2b7e1c08015b26137af60ff82fddbc753f0ff4
Reviewed-by: Jake Petroules <jake.petroules@qt.io>
From Qt 5.7 -> tools & applications are lisenced under GPL v3 with some
exceptions, see
http://blog.qt.io/blog/2016/01/13/new-agreement-with-the-kde-free-qt-foundation/
Updated license headers to use new GPL-EXCEPT header instead of LGPL21 one
(in those files which will be under GPL 3 with exceptions)
Change-Id: I42a473ddc97101492a60b9287d90979d9eb35ae1
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
The keyword no longer has a meaning for the new CI.
Change-Id: Ibcea4c7a82fb7f982cf4569fdff19f82066543d1
Reviewed-by: Simon Hausmann <simon.hausmann@theqtcompany.com>
- Replace Q[TRY]_VERIFY(pointer == 0) by Q[TRY]_VERIFY(!pointer).
- Replace Q[TRY]_VERIFY(smartPointer == 0) by
Q[TRY]_VERIFY(smartPointer.isNull()).
- Replace Q[TRY]_VERIFY(a == b) by Q[TRY]_COMPARE(a, b) and
add casts where necessary. The values will then be logged
should a test fail.
Tests from corelib/tools were omitted in this change.
Change-Id: I4c8786d33fcf429d11b2b624c7cd89c28cadb518
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Qt copyrights are now in The Qt Company, so we could update the source
code headers accordingly. In the same go we should also fix the links to
point to qt.io.
Outdated header.LGPL removed (use header.LGPL21 instead)
Old header.LGPL3 renamed to header.LGPL3-COMM to match actual licensing
combination. New header.LGPL-COMM taken in the use file which were
using old header.LGPL3 (src/plugins/platforms/android/extract.cpp)
Added new header.LGPL3 containing Commercial + LGPLv3 + GPLv2 license
combination
Change-Id: I6f49b819a8a20cc4f88b794a8f6726d975e8ffbe
Reviewed-by: Matti Paaso <matti.paaso@theqtcompany.com>
The intent is to provide compile time validation of signals and to help
detect signal overloading in the future.
Change-Id: I9d5d46ed4b70c5d0cd407deb5928b1e76d37e007
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Reviewed-by: Frederik Gladhorn <frederik.gladhorn@digia.com>
It's still a relocation, but at least it can be marked read-only
after the relocation run, if indeed the dynamic linker goes to
such a length.
Change-Id: Ibadddac3ab99d2e58cc32cfd57311bddd3bdb0ef
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
QHash::key() is O(n) and we're calling it n times. That can make repeated
calls to the meta object builder very slow, as for example QQmlPropertyMap
when inserting properties repeatedly.
Fortunately this is easy to fix, as the value in the hash map is also the
index, so we can simply iterate over the hash once. With the exception of
the class name, which we have to treat specially to ensure that it is always
the first entry in the string table.
Task-number: QTBUG-32720
Change-Id: Ic954c45c454107feee83216131f601cc69d4c63b
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
To be consistent with signals which are public since Qt5.
Change-Id: I633077e37d0851b118c22da0681e8b8b1892ddbb
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
The former applies both on Mac OS X and iOS, but 'macx' is specific to
Mac OS X.
ios.conf and macx.conf now share most of their settings in the common
mac.conf. We set the default QMAKE_MAC_SDK before loading mac.conf, so
that any overrides in the device config will apply afterwards. This
means configure's mkspec parsing will be able to read the QMAKE_MAC_SDK.
Change-Id: I0c7e26a6a0103e19b23ef152aa9e4ab461cee632
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@digia.com>
Change copyrights and license headers from Nokia to Digia
Change-Id: If1cc974286d29fd01ec6c19dd4719a67f4c3f00e
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
Reviewed-by: Sergio Ahumada <sergio.ahumada@digia.com>
Qt 5.0 beta requires changing the default to the 5.0 API, disabling
the deprecated code. However, tests should test (and often do) the
compatibility API too, so turn it back on.
Task-number: QTBUG-25053
Change-Id: I8129c3ef3cb58541c95a32d083850d9e7f768927
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
static_metacall was never set on the metaobject written by
QMetaObjectBuilder::fromRelocatableData, sometimes causing a crash. It
should be initialized to 0.
Change-Id: I79373d895e131f0cc2ff1af6d2177a0c1a282be7
Reviewed-by: Toby Tomkins <toby.tomkins@nokia.com>
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
QMetaObjectExtraData was added when support for QMetaObject::newInstance
was added. One needed a place to put the pointer to static_metacall in
the QMetaObject.
But as we break binary compatibility, one can change the size of
QMetaObject, and put everything back inside QMetaObject's own structure.
Meaning it is not required anymore to have one QMetaObjectExtraData
instance per QMetaObject anymore.
Change-Id: If0b8f586cbaf633eed10045adee3ba3366826c86
Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
Reviewed-by: Kent Hansen <kent.hansen@nokia.com>
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@nokia.com>
Callers should just call the standard allocation functions directly.
Adding an extra function call onto all basic memory management for the sake of
making it instrumentable in rare cases isn't really fair to everyone else.
What's more, this wasn't completely reliable, as not everything was using them
in a number of places. Memory management can still be overridden using tricks
like LD_PRELOAD if needed.
Their aligned equivilents cannot be deprecated, as no standard equivilents
exist, although investigation into posix_memalign(3) is a possibility
for the future.
Change-Id: Ic5f74b14be33f8bc188fe7236c55e15c36a23fc7
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
QMetaMethod::typeName() is documented to return an empty string if
the return type is void. But after the introduction of
QMetaType::UnknownType (where void was made a distinct type),
returning an empty string causes the idiom
QMetaType::type(method.typeName())
to break; the result will be QMetaType::UnknownType rather than
the expected QMetaType::Void for methods that return void.
New code should use the new function QMetaMethod::returnType()
instead, but it would be good if existing code still did the right
thing.
The consequence of returning "void" instead of an empty string is
that it breaks existing logic that uses the typeName() length to
determine whether a method returns void. But we judge this as the
lesser of the two evils; it's better to have a typeName() function
that is consistent and keeps the QMetaType::type(method.typeName())
idiom working, than to force the typeName() inconsistency for void
only to keep code that does "strlen(method.typeName()) == 0"
working.
The places in Qt that were relying on a zero-length typeName()
(testlib, dbus, declarative) have already been changed to use
returnType().
Also adapt QMetaObjectBuilder, which is internal API.
Change-Id: I70249174029811c5b5d2a08c24b6db33b3723d19
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@nokia.com>
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
This function matches QMetaMethod::parameterTypes().
The implementation of QMetaMethod::parameterTypes() was moved to a
helper function in QMetaObjectPrivate, so that it can be shared with
QMetaMethodBuilder.
Change-Id: I4361713996dc4ea31a79c2fc74c813ee5e9c3069
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: João Abecasis <joao.abecasis@nokia.com>
In Qt5 the meta-data format will be changed to not store the
method signature string explicitly; the signature will be
reconstructed on demand from the method name and parameter type
information.
The QMetaMethod::signature() method returns a const char pointer.
Changing the return type to QByteArray can lead to silent bugs due to
the implicit conversion to char *. Even though it's a source-
incompatible change, it's therefore better to introduce a new
function, methodSignature(), and remove the old signature().
Task-number: QTBUG-24154
Change-Id: Ib3579dedd27a3c7c8914d5f1b231947be2cf4027
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: João Abecasis <joao.abecasis@nokia.com>
For template-based connect(), the meta-object is resolved at
compile-time (the virtual metaObject() function isn't called).
But we can make it work by copying the members of the dynamically
constructed meta-object to the statically defined one.
Change-Id: Ia4d3263a89008e36e187c584db6d25d9042f32b3
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
moc supports it, so qmetaobjectbuilder should too.
Change-Id: I01475794e928b5a1b659f0dab044933948186971
Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@nokia.com>
Reviewed-by: Kent Hansen <kent.hansen@nokia.com>
QMetaObject::invokeMethod attempts to deference the extradata for
meta objects versions 6 and greater which is causing a crash in some
of the qtquick1 tests.
Change-Id: If5b2ca83b15de2cd558976c6b681dd5457c404d1
Reviewed-by: Chris Adams <christopher.adams@nokia.com>
Reviewed-by: Kent Hansen <kent.hansen@nokia.com>
qmetaobjectbuilder should generate meta-objects of the same version
as moc; in the future, when the moc version is bumped, QMOB has to
be adapted at the same time.
QMOB was generating version 4 meta-objects. This patch makes it
generate version 6 (the current version). This also fixes a bug with
using qt_static_metacall with QMOB (setStaticMetacallFunction()); it
was already using the version 6 qt_static_metacall signature, which
isn't compatible with version 4.
Also add tests that ensure that the QMOB-generated meta-object works
with real objects; in particular we want to test the codepaths in Qt
that check for version >= 4.
Change-Id: I64a151ea5c947a6f8b7a00e85a39866446c735e9
Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
As in the past, to avoid rewriting various autotests that contain
line-number information, an extra blank line has been inserted at the
end of the license text to ensure that this commit does not change the
total number of lines in the license header.
Change-Id: I311e001373776812699d6efc045b5f742890c689
Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
QMetaType::QVariant has existed as a proper type for almost two
years, but the qvariant_nameToType function was written in 2006.
Using QMetaType::QVariant means QVariant can be treated just like
any other type. We can get rid of those hacky checks for LastType,
and the remaining checks become more readable.
The fact that QMetaProperty::{type,userType}() returned LastType
(0xffffffff) for QVariants was never documented (LastType itself is
internal). But there are other Qt modules that assume so. I'll fix
the ones I know about (qtdeclarative, qtscript, activeqt).
Change-Id: I799b9079bb8bbb1fe76c132525440b30415cbac5
Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@nokia.com>
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
We're trying to deprecate these, so don't use them anymore.
The inline uses of these have been left intact, for the moment. Inline code will
need to create their own non-inline allocation methods (for future-proofing to
allow alterations in how e.g. individual containers allocate)
Change-Id: I1071a487c25e95b7bb81a3327b20c5481fb5ed22
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
This commit moves the qmetaobjectbuilder test from test/auto/
into corelib/kernel/ since that matches the location in the Qt source.
Change-Id: I0342e8185ce775b0ef71849f365bf54c8fb56da4
Reviewed-by: Jason McDonald <jason.mcdonald@nokia.com>
