I'm not sure how one of my machines has this problem and the other
doesn't (same distribution and same compiler version). Must be operator
error. But this is required to compile QtGui when QtCore was compiled in
LTO mode.
qversiontagging.cpp used to be built with -fno-lto before commit
629ceec208. This commit restores that
functionality, but not the clang "-no-integrated-as" part.
Change-Id: Ie9fd7afe060b4e4a8052fffd144fb9c1a1166854
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
systemd >= 209 merged the individual libraries libsystemd-journal,
libsystemd-login, libsystemd-id128 and libsystemd-daemon into
a single library, libsystemd. To ease the transition one could pass
an option to its build to generate stub libraries and matching
pkg-config files. With systemd >= 229 this option has now been
removed, causing the build to fail when the journald option is
enabled.
Change-Id: I26670f207f1a9e79c16be5ce8c8a49353143c5ba
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
Reviewed-by: Robin Burchell <robin.burchell@viroteck.net>
See the comment in the header for an explanation of what it does.
This trick is enabled for every single .o that is compiled, unless
QT_NO_VERSION_TAGGING is defined. The assembly expands to a COMDAT
section, which is mergeable by the linker, so only one copy of the
output is present in the ELF module.
This is enabled only for Linux and x86 / x86-64 / x32 due to the
requirement of writing assembly and relocations, so it needs to be
tested on each platform, which I have not done. It might work on
Solaris/x86, but again it requires testing. Support for other
architectures requires different assembly output and relocations and can
be added as needed, but they are not as important since this trick is
has most value on desktop systems.
Change-Id: I049a653beeb5454c9539ffff13e3ff5782a8cb86
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
Reviewed-by: Rex Dieter <rdieter@gmail.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
The only reason I had used them in the first place was because C
preprocessor macros cannot call themselves recursively. But the magic
was too magic and caused issues with some builds, so let's choose the
safer option.
Anyway, this solution now works for all ELF architectures, independent
of the processor, whereas previously it was restricted to x86 and Linux/
FreeBSD. However, this does not apply to the assembly in
qversiontagging.h.
Change-Id: I42e7ef1a481840699a8dffff1404f032fc5cacb8
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
The .altmacro is not supported with Clang's integrated assembly.
The worst part is that I had this fixed, but apparently I never pushed
the update to Gerrit and then we staged the old version. This commit
brings back the fixes.
Incidentally, it also makes things work with freebsd-clang.
Change-Id: Id2a5d90d07d7ee470fcb9ad9696a9a0f9ced7ea7
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
Reviewed-by: Simon Hausmann <simon.hausmann@theqtcompany.com>
This symbol will exist with different ELF versions, allowing us to know
which version of Qt a given library or application was linked
against. When this symbol gets used, automatic packaging tools will
extract the dependency. The trick here is that the application uses
qt_version_tag without knowing which version is current, but the linker
resolves it to the current version and records that.
For example, if this were used with Qt 5.5, RPM's find-requires on an
application using QtCore would print:
libQt5Core.so.5()(64bit)
libQt5Core.so.5(Qt_5.5)(64bit)
libQt5Core.so.5(Qt_5)(64bit)
Whereas find-provides on QtCore would print:
libQt5Core.so.5()(64bit)
libQt5Core.so.5(libQt5Core.so.5)(64bit)
libQt5Core.so.5(Qt_5.0)(64bit)
libQt5Core.so.5(Qt_5.1)(64bit)
libQt5Core.so.5(Qt_5.2)(64bit)
libQt5Core.so.5(Qt_5.3)(64bit)
libQt5Core.so.5(Qt_5.4)(64bit)
libQt5Core.so.5(Qt_5.5)(64bit)
libQt5Core.so.5(Qt_5)(64bit)
Therefore, automatic dependency resolution would have the information it
needs to conclude that the application requires Qt >= 5.5.
Change-Id: I049a653beeb5454c9539ffff13e3fec9aeb50197
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
[ChangeLog][QtCore][Logging] Systems with syslog may now pass -syslog to
configure to send logging output to syslog.
Change-Id: I80d58ee6e70d8deb2409fc666e7e7f2d7f52b8e1
Reviewed-by: Kai Koehne <kai.koehne@theqtcompany.com>
Commit b6191b16 ("Merge remote-tracking branch 'origin/5.4' into dev")
merged commit 350c60b ("Link against QMAKE_LIBS_EXECINFO when using
backtrace(3)") into the dev branch, but the conflict resolution left out
the actual line that changed LIBS_PRIVATE.
Change-Id: I6e716ed375abdc534a1f20e412ce7c56ee85d6c0
Reviewed-by: Frederik Gladhorn <frederik.gladhorn@theqtcompany.com>
Add a new mkspec variable, QMAKE_LIBS_EXECINFO, for platforms where
backtrace(3), backtrace_symbols(3) and others are not in libc, but
rather in a separate library -- on the BSDs, this is libexecinfo.
Use it in corelib/global/global.pri so that libqt5core links against it
and has the proper dependency when necessary.
Change-Id: I62ac36c9b3ba7ab0719420cb795087d43ec138a4
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
The toolchain is basically the same as on Linux, so we can get the
program interpreter and print the build information when Qt5Core.so
is run.
Change-Id: I02a910e691622e24e882015716c5f74dd5a20c4a
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
This uses the same logic as the config.test, so we will return the same
string as the $$QT_ARCH variable in qmake for cpuArchitecture().
fullCpuArchitecture() is meant to be used in upgrade mechanisms, when
combined with the OS type.
Change-Id: If0dfee9eff75a07fa4c0778d204e0e768bf43074
Reviewed-by: Kai Koehne <kai.koehne@digia.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
These hooks only worked reliably with LD_PRELOAD on Linux/GCC, on other
platforms they depended on what exactly the compiler optimizer is doing
as well as some nasty assembler rewriting to actually access them. The
new system uses a simple array of function pointers that can be set to
custom hooks by tools that need this (based on ideas from Andre Poenitz).
This also covers qt_startup_hook (similar problem), and the Qt version
number that Andre had asked for.
Change-Id: I2c3e7950fd49b1b1d04176be34c2fff3293981b0
Reviewed-by: Stephen Kelly <stephen.kelly@kdab.com>
Reviewed-by: Giuseppe D'Angelo <giuseppe.dangelo@kdab.com>
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
let the syncqt + qt_module_header.prf pair handle generation of
forwarding headers.
in qtbase this is ineffective to some degree, as the need to create
QtCore's forwarding headers early for QtBootstrap requires qtbase.pro
already doing the real work, but at least we get the verification that
nothing breaks.
Other Modules (TM) will need the full functionality.
Change-Id: Ifd3dfa05c4c8a91698a365160edb6dabc84e553f
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>
Instead of merely intercepting logging output from stdout/stderr from the
journal side of started processes, this has the advantage of meaning that the
origin process name will be correct.
fprintf won't work, because if a process starts children (like e.g. a
homescreen does), then their stdout/stderr are merged into their parent, and
journal has no way of differentiating the origin.
We are also able to store information about the context of logging, which might
be useful in post-mortem cases.
[ChangeLog][Platform Specific Changes][Linux] Systems with systemd may now pass
-journald to configure to send logging output to journald. Logging will still be
sent to stderr for interactive applications (run from a tty) or with
QT_NO_JOURNALD_LOG set to a non-empty value.
Change-Id: Ib260cec1ea87390bf44f267d217d795583407d00
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
much more elegant than the checked in file. and less chance to get it
wrong, as people often enough do.
Change-Id: I975a62dfd83ce4f15947ce54f3c40931b1badae0
Reviewed-by: Tasuku Suzuki <stasuku@gmail.com>
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>
this avoids that syncqt needs to forward to a yet unexisting file (which
will have a yet unknown location, when syncqt is run at packaging time
already).
the %inject_headers syncqt config variable remains, so it can be told
not to purge "foreign" files.
Change-Id: I127ff6e0b7d5702fb0acaee9a5b7940b482d3608
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>
Unlike the previous implementation, this implementation is locked:
only one initialisation is ever run at the same time. It is
exception-safe, meaning that a throwing constructor will restart the
process.
Also, start using the thread-safe behaviour that GCC has offered for a
long time and C++11 requires.
Change-Id: I20db44f57d258923df64c0051358fd0d9a5ccd51
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Reviewed-by: David Faure (KDE) <faure@kde.org>
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@digia.com>
The file was already present but wasn't mentioned.
Change-Id: Icac4fd5276b071ed2173e72aed51abb4c0b5b50a
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Change-Id: Id0137400f18c8dfe7be7ca44670c16615401d424
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>
Reviewed-by: Rafael Roquetto <rafael.roquetto@kdab.com>
Reviewed-by: Peter Hartmann <phartmann@rim.com>
Add Q_IS_ENUM() macro to determine if a given type is an
enumeration. Use information from that in QMetaType::registerType()
to store whether custom registered metatypes are enums or not.
This information can then be accessed by calling
QMetaType::typeFlags(int type). This is used by the declarative
code to determine whether a custom type in a variant can be safely
cast to an integer, which is required to allow passing non-local
enums as signal/slot params.
Change-Id: I9733837f56af201fa3017b4a22b761437a3c0de4
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
qsysinfo.h is still included by qglobal.h, but it may be possible
to remove the include from qglobal.h and instead include qsysinfo.h
only where needed (e.g. qendian.h, qdatastream.h).
Change-Id: Ifa2c72e0dae206d88eaa192e15a906297673c048
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
qtypeinfo.h is still included from qglobal.h, and defines QTypeInfo
as well as all the specializations for built-in and default Qt types.
Change-Id: I24116174de288a730cbb7aa2f80d346d2b2f9408
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: João Abecasis <joao.abecasis@nokia.com>
This detects the target processor based on preprocessor #defines,
setting Q_PROCESSOR_${FAMILY} accordingly. Optional
Q_PROCESSOR_${FAMILY}_${REVISION/VARIANT} #defines are also provided,
usually dependent on how the compiler is invoked.
Currently detected families (and variants) include:
ARM (v5, v6, and v7)
X86 (i386 and x86_64, as X86_32 and X86_64 respectively)
IA-64
MIPS (I, II, III, IV, 32, 64)
Other families that currently are not detected, but Qt has (or had)
support for include:
Alpha
AVR32
Blackfin
PA-RISC
PowerPC (optional 64-bit variant)
S390 (and S390X 64-bit variant)
SH (and SH-4A)
SPARC (SPARC V9)
Detection for these is currently commented out, and can
be easily enabled later.
Change-Id: I571f245c189b9d80c7c3a5369ac595a271f37c8b
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
qcompilerdetection.h is included from qglobal.h, and does all Q_CC_*
and compiler feature detection.
Change-Id: Idd06054e172ef6fa73774e26fa38753996c4161b
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
qsystemdetection.h is included from qglobal.h, and does all Q_OS_*
detection
A side-effect of this change is that QT_BEGIN_HEADER and QT_END_HEADER
started being defined on Mac OS X, which ends up breaking the build
in some cases. Since QT_BEGIN_HEADER and QT_END_HEADER have been
defined to nothing in the past, even on Mac OS X, change these 2
to be unconditionally defined to nothing.
Change-Id: Ibc8a0aa2207664741c25627d7621e006c2ce80d3
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Record the file, line, and function where a qDebug, qWarning, qCritical
or qFatal call happens, and make this information available in a custom
message handler.
The patch uses the C preprocessor to replace qDebug, qWarning, ... with
a line that also records the current file, line, and function. Custom
message handlers can access this information via a new QMessageLogContext
argument.
Change-Id: I0a9b89c1d137e41775932d3b1a35da4ebf12d18d
Reviewed-by: David Faure <faure@kde.org>
It's not a good idea to look at the host's /bin/ls when cross-compiling
Change-Id: I1fe67b17abd92f01c1d89146227c5419eaa3242f
Reviewed-by: Arvid Picciani <arvid.picciani@nokia.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@nokia.com>
This is the beginning of revision history for this module. If you
want to look at revision history older than this, please refer to the
Qt Git wiki for how to use Git history grafting. At the time of
writing, this wiki is located here:
http://qt.gitorious.org/qt/pages/GitIntroductionWithQt
If you have already performed the grafting and you don't see any
history beyond this commit, try running "git log" with the "--follow"
argument.
Branched from the monolithic repo, Qt master branch, at commit
896db169ea224deb96c59ce8af800d019de63f12
