It's a Linux-specific call that was added to the kernel in pre
historical times (before Git). Sqlite3 uses mremap(2) but it has its own
checking. Nothing else in Qt uses this.
Looks like the last user was the QPF font engine, removed in commit
d7e424ee66 almost four years ago. And
that's considering that the QPF font engine wasn't in use since Qt 5.0
because QWS was no more...
Change-Id: Idaa189413f404cffb1eafffd14ceee7488514c1d
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
This patch-set implements a new QSslSocket backend based on OpenSSL 1.1.
1. General.
The code in this patch was organized to achieve these (somewhat contradicting)
objectives:
- keep the new code free of #if-ery, as far as possible;
- make it easy to clean away dead code when we're eventually able to retire
out-dated OpenSSL versions;
- reduce the amount of code duplication.
If changes in some file/component were insignificant (~5 one-liners per file),
we still use pp-checks like: #if QT_CONFIG(opensslv11) ... #else ... #endif -
the logic is simple and it's still easy to clean the code if we remove the legacy
back-end. Where it saved #if-ery, we also introduced 'forward-compatible'
macros implementing equivalents of 1.1 functions using older OpenSSL.
In case some class contains a lot of version-specific ifdefs (particularly where
nested #if-ery was complex) we choose to split code into: "pre11" h/cpp files,
"shared" h/cpp files (they preserve their original names, e.g qsslsocket_openssl.cpp)
and "11" h/cpp files. If in future we remove the legacy back-end, "pre11" should be
removed; "shared" and "11" parts - merged.
2. Configuration.
We introduced a new feature 'opensslv11' which complements the pre-existing
'openssl' and 'openssl-linked' features. The 'opensslv11' feature is enabled
by a simple test which either compiles successfully or ends in a compilation
error, depending on a value of the OPENSSL_VERSION_NUMBER constant. If the
feature was enabled, we also append an additional compilation flag
-DOPENSSL_API_COMPAT=0x10100000L to make sure our new code does not contain
deprecated structures, function calls, macro-invocations from OpenSSL < 1.1.
Change-Id: I2064efbe9685def5d2bb2233a66f7581954fb74a
Reviewed-by: André Klitzing <aklitzing@gmail.com>
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
The getentropy function, first found in OpenBSD, is present in glibc
since version 2.25 and Bionic since Android 6.0 and NDK r11. It uses the
Linux 3.17 getrandom system call. Unlike glibc's getrandom() wrapper,
the glibc implementation of getentropy() function is not a POSIX thread
cancellation point, so we prefer to use that even though we have to
break the reading into 256-byte blocks.
The big advantage is that these functions work even in the absence of a
/dev/urandom device node, in addition to a few cycles shaved off by not
having to open a file descriptor and close it at exit. What's more, the
glibc implementation blocks until entropy is available on early boot, so
we don't have to worry about a failure mode. The Bionic implementation
will fall back by itself to /dev/urandom and, failing that, gathering
entropy from elsewhere in the system in a way it cannot fail either.
uClibc has a wrapper to getrandom(2) but no getentropy(3). MUSL has
neither.
Change-Id: Ia53158e207a94bf49489fffd14c8cee1b968a619
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Follow the usual pattern:
Add a config test and automatic include of GLES3/gl32.h if there
is a GLES 3.2 capable header+lib at build time.
Then, regardless of this being enabled, expose all new 3.2 API
functions in QOpenGLExtraFunctions and resolve them dynamically
at run time.
This way 3.2 functions will be available when deployed to a 3.2
capable system (or OpenGL 3/4.x with the functions in question
available) regardless of what was present in the sysroot at build
time.
Change-Id: Ia52551f3178591e1e56ceac8e45d89c6b13f4927
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>
GCC didn't support it until version 5 or 6, so add configure tests for
both <random> and <sys/auxv.h>. Normally I'd say "upgrade", but this is
too low-level and important a feature.
There's a good chance that all our supported compilers have <random>
anyway. As for <sys/auxv.h>, it's present on Glibc, Bionic and MUSL, but
I don't see it in uClibc (AT_RANDOM is a Linux-specific feature).
Change-Id: Ia3e896da908f42939148fffd14c5b2af491f7a77
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
This was originally enabled in the mkspecs for 64-bit QNX 7.0.0
but that broke when the qtConfig change was made. It looks like
qtConfig shouldn't be used in the platform mkspecs. I suspect
the stack-protector changes were left out of the 32-bit mkspecs
so that 6.6.0 builds wouldn't be affected.
Ignore the stack-protector/stack-protector-all possibility since
it isn't possible to access it without a command line option.
Specifying both options doesn't even make sense since
stack-protector-all encompasses stack-protector.
For now, leave out command line control of this feature.
Task-number: QTBUG-59644
Change-Id: I99323216be5b592dd2c3bef6d22da195764a6e65
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
The instruction is "RDRAND", but the feature name, according to GCC, is
RDRND, so I had to change some macros in qsimd_p.h.
Change-Id: Icd0e0d4b27cb4e5eb892fffd14b5166779137e63
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
With this setup clang cannot use c++1z yet.
Fixed with clang 5.0.
In file included from /data/sources/qt/qt5/qtbase/src/corelib/codecs/qtextcodec.cpp:53:
In file included from ../../../include/QtCore/5.9.1/QtCore/private/qcoreglobaldata_p.h:1:
In file included from ../../../include/QtCore/5.9.1/QtCore/private/../../../../../../../../../sources/qt/qt5/qtbase/src/corelib/kernel/qcoreglobaldata_p.h:55:
In file included from ../../../include/QtCore/qmap.h:1:
In file included from ../../../include/QtCore/../../../../../../sources/qt/qt5/qtbase/src/corelib/tools/qmap.h:52:
In file included from /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/7.1.1/../../../../include/c++/7.1.1/map:60:
In file included from /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/7.1.1/../../../../include/c++/7.1.1/bits/stl_tree.h:72:
In file included from /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/7.1.1/../../../../include/c++/7.1.1/bits/node_handle.h:39:
/usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/7.1.1/../../../../include/c++/7.1.1/optional:1032:27: error: use of class template 'optional' requires template arguments
Change-Id: Ib4cd8a9f5791a6e6cae4e6d61dfec3ad50dd63ab
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
This change adds USB mouse handling support for INTEGRITY
Change-Id: I8a2a51c8c3578898e90dd5bbb01f6aed6c64e2a4
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
Reviewed-by: Timo Aarnipuro <timo.aarnipuro@qt.io>
Reviewed-by: Nikola Velinov <nvelinov@ghs.com>
Reviewed-by: Rolland Dudemaine <rolland@ghs.com>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Reviewed-by: Tero Alamaki <tero.alamaki@qt.io>
We can't depend on QT_HAS_INCLUDE for such an important functionality in
QtQml, so detect at configure time.
alloca() is not a POSIX function (it apparently first appeared in
Version 32V AT&T UNIX), so the actual header that defines it varies from
system to system. Clearly, if alloca.h exists, that's the one, so we try
it first. On most other systems that don't define it, it's in stdlib.h.
The only exception is Windows, where it's actually defined in malloc.h.
Task-number: QTBUG-59700
Started-by: Thiago Macieira <thiago.macieira@intel.com>
Change-Id: Icd0e0d4b27cb4e5eb892fffd14b4b2b389a4684e
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
This commit revives the old native QPixmap and QPaintEngine
implementations that were present in Qt4. The backing store supports
regular raster windows in this commit. Support for render-to-texture
widgets and OpenGL compositing will be added in a follow-up commit.
Change-Id: I80a9c4f0c42a6f68f571dfee930d95000d5dd950
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
MSVC, Apple's Clang and Clang prior to 3.9 do not recognize _cvtss_sh
and _cvtsh_ss. So expand the operation to use directly the packed
intrinsics.
Change-Id: I27b55fdf514247549455fffd14b2046fd638593d
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
Test failed on QNX 7, even though alloca is available. On QNX7,
it's a macro that expands to a line with NULL, but without define
for it.
alloca.cpp:44:5: error: 'NULL' was not declared in this scope
Task-number: QTBUG-59700
Change-Id: I3631d139990020a3adbab8b72e49929b6e721e80
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
The configure-time detection (cxx11default) isn't enough if the compiler
can be changed. This is especially necessary if Qt is compiled with a
compiler that defaults to >= C++11 (e.g., GCC 6) and then the user
selects a compiler another compiler (e.g., Clang) via -spec option. In
that case, we'd miss adding the -std=c++11 or -std=gnu++11 option to the
command-line, causing the compilation to fail.
As a nice side-effect, even moc without moc_predefs.h will now get the
__cplusplus setting.
Task-number: QTBUG-58321
Change-Id: I74966ed02f674a7295f8fffd14a8be35da9640e1
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
A typo caused the test to never detect the system wide PCRE.
Task-number: QTBUG-59226
Change-Id: I42ada99aac240455d11b53d2ab59d712d8f811ff
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
This is needed to encode the correct ABI into the generated qml caches.
It is identical with the return value of QSysInfo::buildAbi().
Change-Id: I2d581b22326da4220f412ab4f517156f4ba31897
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
For Android, Windows and xcb. Verified on Win10 with NVIDIA, Win10
with AMD, Android with Tegra K1, Android aarch64 with Tegra X1, and
Linux aarch64 with Tegra X1 (Jetson TX1, L4T).
Introduce QPA-based Vulkan library loader, core function resolver, and
instance creation support. In addition to creating a new VkInstance,
adopting an existing one from an external engine is supported as well.
The WSI specifics are hidden in the platform plugins. Vulkan-capable
windows use the new surface type VulkanSurface and are associated with
a QVulkanInstance.
On Windows VULKAN_SDK is picked up automatically so finding vulkan.h
needs no additional manual steps once the LunarG SDK is installed.
[ChangeLog][QtGui] Added support for rendering to QWindow via the Vulkan
graphics API.
Task-number: QTBUG-55981
Change-Id: I50fa92d313fa440e0cc73939c6d7510ca317fbc9
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
Reviewed-by: Andy Nichols <andy.nichols@qt.io>
We do use xcb-xrender, and it has its own detection
logic in configure.json.
Change-Id: I20bbc1ddf5dd0c32e93ef2c12c7b0eda3f96f4f4
Reviewed-by: Alexander Volkov <a.volkov@rusbitech.ru>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
The AES instructions were first introduced with the Westmere shrink
(22nm) of the Nehalem architecture. The SHA instructions are still
pending on Intel architecture, but is available on AMD family 17h (gcc
argument -march=znver1).
Both features operate on SSE registers, so that's why the MSVC command-
line argument is the SSE2 one and the configure-time tests depend on
features.sse2.
The qmake feature names end in "ni" because "aes" and "sha" are too
simple and could clash with other uses. The QT_COMPILER_SUPPORTS_ macro
doesn't have the "NI" suffix because it has to match the GCC/Clang
predefined macro.
Change-Id: I445bb15619f6401494e8fffd149dbd1f862ff51c
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
Use F16C or ARM FP16 if available at compile time.
Configure check added because older clang compilers have F16C defines
and flags but not all the intrinsics.
Change-Id: I71f358b8fd003e70ab8fcf35097414591e485112
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Alloca() is not supported on all platforms, like
INTEGRITY on ARM, so adding a configure check for it.
This can be used when building QtQml and 3rd party
code, in particular PCRE2 and SQLite.
Change-Id: I9785e16c21f67d1a68fef567e18c3356170f027e
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
The patch fixes a number of bugs in code, and removes dead logic
clarifying that MIPS DSP, like ARM NEON, has no runtime detecton.
Change-Id: If2f4eea68da5b2eaa80b8e9c8258206d8c1b7173
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
this makes it consistent with the determination of the default
include/library paths. this makes sense, as it's possible to switch the
sdk/toolchain after building qt (within reason).
a side effect of this change is that for compilers which emulate other
compilers, both the real and the emulated version are now made
available.
Change-Id: Icfcc672c0d2e3d1b5e622993c366063d70ad327c
Started-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
instead of letting the specs validate themselves on each call, let them
only define a callback for use by the verifyspec configure test. this
is somewhat faster, and allows them to be loaded before qdevice.pri is
populated.
Change-Id: I2b60d006b33bbf42c28949f10ad429520ed32f46
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
PCRE1 is going towards EOL. PCRE2 is the way forward in terms
of new features, performance, and security improvements. The
APIs that QRegularExpression uses are similar so the required
modifications aren't extensive.
The biggest difference comes to JIT-compiling of the pattern.
In PCRE1, JIT-compiling did not modify the processed PCRE pattern,
but returned a new chunk of data.
This allowed multiple threads to keep matching using the same
processed data and NULL for the JIT data, until a thread
JIT-compiled and atomically set the shared JIT data to the results
of the compilation.
In PCRE2, JIT-compiling _modifies_ the processed PCRE pattern in a
way that it's thread unsafe [1]; the results of JIT-compilation
are stored somewhere inside the processed pattern.
This means the above approach cannot work -- a thread may be
matching while another one JIT-compiles, causing a data race.
While waiting for better workarounds from upstream, employ a
read/write mutex to protect the matching from JIT-compilation.
[1] https://lists.exim.org/lurker/message/20160104.105831.3cb25b39.en.html
[ChangeLog][General] QRegularExpression now requires the PCRE2
library, at least version 10.20. Support for the PCRE1 library
has been dropped. A copy of PCRE2 is shipped with Qt and will
automatically be used on those platforms which lack it.
Change-Id: I9fe11104230a096796df2d0bdcea861acf769f57
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
This commit re-enables support for OpenVG in Qt, but not in the
same way as in Qt 4.8. The first part is about adding a test
and using the new configure system to enable OpenVG.
There is still support code in Qt for setting up EGL to provide a
surface and context for rendering with the OpenVG API, this commit
enables a path to do so.
Normally to get access to an EGLContext from a QWindow you do so via
QOpenGLContext, but in setups without OpenGL but with EGL and OpenVG
this doesn't make sense (there would be no QOpenGLContext). So the
intended way is to use a QWindow to get an EGLSurface, then create
an EGLContext directly (without going through QPA).
Change-Id: I0f75aadbaa3cd006deb7e6fd12cfbb574870fba4
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
