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* Update copyright headersJani Heikkinen2015-02-111-7/+7
| | | | | | | | | | | | | | | | | | 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 Outdated header.LGPL removed (use header.LGPL21 instead) Old header.LGPL3 renamed to header.LGPL3-COMM to match actual licensing combination.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>
* Complete MIPS atomic support on pre-MIPS32 architecturesPino Toscano2014-12-301-1/+4
| | | | | | | | Extend the support for pre-MIPS32 architectures (done mostly in 60b6b28c213a420ee40e254ff1823876098e0a04) also to orderedMemoryFence. Change-Id: I50b9091c16166b8434a07988053c1f901d528237 Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
* Fix compilation of MIPS with ClangThiago Macieira2014-10-071-1/+1
| | | | | | | | | | Clang always sets __mips to 1, unlike GCC. To detect a higher MIPS arch, we need to rely on the _MIPS_ARCH_MIPSxxx macros being defined -- or, in this case, _MIPS_ARCH_MIPS1 not being defined. Change-Id: Ib6846a6892a4c1e17e595a69305b7e46a5303ee7 Reviewed-by: Olivier Goffart <ogoffart@woboq.com> Reviewed-by: Adrian Perez de Castro <aperez@igalia.com>
* Update license headers and add new license filesMatti Paaso2014-09-241-19/+11
| | | | | | | | | - Renamed LICENSE.LGPL to LICENSE.LGPLv21 - Added LICENSE.LGPLv3 - Removed LICENSE.GPL Change-Id: Iec3406e3eb3f133be549092015cefe33d259a3f2 Reviewed-by: Iikka Eklund <iikka.eklund@digia.com>
* Correct the SYNC hint for the release barrierThiago Macieira2014-08-131-1/+1
| | | | | | | | | | | | | The MIPS32 manual I have says 0x11 is SYNC_ACQUIRE and 0x12 is SYNC_RELEASE. The change was an unintentional mistake in commit 60b6b28c213a420ee40e254ff1823876098e0a04. Thanks to Spencer Schumann for spotting this. Change-Id: I16885e4e86e8befa8931733d0b5a54ac9942f176 Reviewed-by: Spencer Schumann <spencer.schumann@echostar.com> Reviewed-by: Olivier Goffart <ogoffart@woboq.com> Reviewed-by: Lisandro Damián Nicanor Pérez Meyer <perezmeyer@gmail.com>
* Support MIPS atomic on pre-MIPS32 architecturesAurelien Jarno2014-06-271-2/+8
| | | | | | | | | | | | | | | | | | | | | The atomic functions on MIPS are based on the sync opcode with an immediate argument, which is something introduced in the MIPS32 instruction set. This prevent to use Qt on pre-MIPS32 CPU, like the Loongson 2 CPU. However some of the pre-MIPS32 CPUs interprets the sync opcode with and immediate argument as a sync opcode without argument (which is a stronger ordering than with the argument), and for the others the kernel emulates it. It is therefore fine to use the current MIPS atomic functions on pre-MIPS32 CPU. This patch allows that by temporarily changing the instruction set to MIPS32 around the sync instruction, so that binutils doesn't choke on it. Change-Id: I9cc984bd55b5f172736ce9e638a6f4e271b79fe7 Reviewed-by: Lisandro Damián Nicanor Pérez Meyer <perezmeyer@gmail.com> Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
* Add a testAndSet overload to the atomics that returns the current valueThiago Macieira2014-02-161-7/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is extremely useful, since the most common action after a failed compare-and-swap is to loop around, trying again with the current value as found in memory. Code currently written as: do { Type value = atomic.load(); ... } while (!atomic.testAndSetRelaxed(value, desired)); Becomes: Type value = atomic.load(); do { ... } while (!atomic.testAndSetRelaxed(value, desired, value)); In most CPU architectures, the value that was found in memory is known to the compare-and-swap code, so this is more efficient than the previous code. In architectures where the value is not known, the new code is no worse than before. The implementation sometimes modified an existing function, sometimes it added a new one, depending on whether more registers were needed in the assembly (like ARMv6-7), the code became more complex (ARMv5), the optimizer failed (C++11), or it was just plain equivalent (MIPS). Change-Id: I7d6d200ea9746ec8978a0c1e1969dbc3580b9285 Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com> Reviewed-by: Lars Knoll <lars.knoll@digia.com> Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
* Replace the type-based QAtomicIntegerTraits with a size-based oneThiago Macieira2014-01-301-8/+1
| | | | | | | | This simplifies the code a lot and avoids silly mistakes where a specific integer type is missing (such as char16_t). Change-Id: Id91dfd1919e783e0a9af7bfa093ca560a01b22d1 Reviewed-by: Lars Knoll <lars.knoll@digia.com>
* Centralize support for QBasicAtomic for ints and longsThiago Macieira2014-01-301-10/+0
| | | | | | | No need to redefine everywhere, since they're required to be supported. Change-Id: I2bdbbd0b0c44871e3bd0edcf0289fc58dd50ff31 Reviewed-by: Lars Knoll <lars.knoll@digia.com>
* Remove use of 'register' from Qt.Stephen Kelly2013-06-171-20/+20
| | | | | | | | | | It is deprecated and clang is starting to warn about it. Patch mostly generated by clang itself, with some careful grep and sed for the platform-specific parts. Change-Id: I8058e6db0f1b41b33a9e8f17a712739159982450 Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
* Mark all qtbase headers that aren't cleanThiago Macieira2013-03-031-0/+1
| | | | | | | | | | | | | | | | QtCore has a few headers that, though public, aren't meant to be included directly. Those are the atomic headers, the three _impl.h headers and qt_windows.h. QtGui includes two OpenGL headers that don't compile on their own. Other libraries should not have headers like that (but they do, something we need to fix eventually). Change-Id: I55e4eb057748f47df927ee618f9409acbc189cc1 Reviewed-by: Sean Harmer <sean.harmer@kdab.com> Reviewed-by: Gunnar Sletta <gunnar.sletta@digia.com> Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
* Remove QT_{BEGIN,END}_HEADER macro usageSergio Ahumada2013-01-291-6/+0
| | | | | | | | | | | The macro was made empty in ba3dc5f3b56d1fab6fe37fe7ae08096d7dc68bcb and is no longer necessary or used. Discussed-on: http://lists.qt-project.org/pipermail/development/2013-January/009284.html Change-Id: Id2bb2e2cabde059305d4af5f12593344ba30f001 Reviewed-by: Laszlo Papp <lpapp@kde.org> Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@digia.com> Reviewed-by: hjk <hjk121@nokiamail.com>
* Update copyright year in Digia's license headersSergio Ahumada2013-01-181-1/+1
| | | | | Change-Id: Ic804938fc352291d011800d21e549c10acac66fb Reviewed-by: Lars Knoll <lars.knoll@digia.com>
* Change copyrights from Nokia to DigiaIikka Eklund2012-09-221-24/+24
| | | | | | | | 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>
* Enable QAtomicInteger for char16_t and char32_tThiago Macieira2012-08-181-0/+13
| | | | | | | | | | | Those are regular, integer types, of 16- and 32-bit width, respectively. C++11's std::atomic supports them, so we should too. C++11 also supports wchar_t, but since that type's size can change, I don't feel like support for it in Qt is pressing. Change-Id: I945b641c91a8a98be82715f878c382dee58ac98b Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
* Add Q_DECL_CONSTEXPR to the isXXX functions in the new atomics.Thiago Macieira2012-08-181-5/+5
| | | | | | | | | This allows one to write code that depends on these values at compile-time. Change-Id: I7d78524ed9c70d4141360496d1d764dcbfa92e62 Reviewed-by: Marc Mutz <marc.mutz@kdab.com> Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
* Mark all atomic functions as Q_DECL_NOTHROWThiago Macieira2012-08-091-26/+26
| | | | | | | | | | | | | | | | | | | | | | | | | Actually, only the "new" atomics are marked. The old implementation, based on qoldbasicatomic.h is unchanged, but should still work without a problem. The following configurations were tested and do work: - x86 64-bit - x86 32-bit - generic GCC - generic C++11 std::atomic - bootstrap - ARMv6 and 7 - MIPS - MSVC 2010 32-bit - MSVC 2010 64-bit The only two configurations untested are IA-64 and ARMv5. Except for MSVC, all configurations were tested with GCC 4.6 (MIPS and ARM) and 4.7 (x86 and generics). Change-Id: Iecbfeacd9d20b535453e91335165e9a221e0b47e Reviewed-by: Marc Mutz <marc.mutz@kdab.com> Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
* Add a T parameter to the memory barrier functions in atomics.Thiago Macieira2012-08-071-9/+12
| | | | | | | | This is so we can insert valgrind (helgrind) annotation macros. They require the actual address of the variable to work. Change-Id: I988f6a46385ad58143c53ad34b6cf0f58be2cdb8 Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
* Use Q_PROCESSOR_* when chosing an atomic implementationBradley T. Hughes2012-02-081-1/+1
| | | | | | | | | | Use the new Q_PROCESSOR_* macros to decide which headers to include in the atomic implementation. This also removes qatomic_arm.h, which isn't needed anymore, just select the correct qatomic_armv*.h from qbasicatomic.h Change-Id: I954848feafb8c420949d066ffcee1dd2b271e13b Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
* Silence syncqt warnings for atomic implementation headersBradley T. Hughes2012-02-061-0/+4
| | | | | | | | | | Most of these headers are either forwarding headers, or we explicitly stop syncqt so that it doesn't generate class includes for the atomic implementation. Either way, syncqt doesn't see the QT_END_* (and sometimes not QT_BEGIN_*), which this commit fixes. Change-Id: Icc8da6f384f38b1ff4eb265c731ce2f2ed92a1a3 Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
* Remove "All rights reserved" line from license headers.Jason McDonald2012-01-301-0/+1
| | | | | | | | | | 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>
* Port the MIPS atomics to the new QBasicAtomicXXX architectureThiago Macieira2012-01-241-690/+144
| | | | | | | | | | | | | | | The LL/SC instructions are only present on MIPS II and up, so don't pretend to support MIPS I. The previous implementation emitted the instructions by telling the assembler to change instruction sets. Now, the user must pass an -march= option to GCC telling it which architecture or processor is being targetted. On MIPS64, the 64-bit implementation allows supporting for long long too. Change-Id: I6dae6f8f61e563aba6a663227d91c5ddf554aa6a Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com> Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
* Update contact information in license headers.Jason McDonald2012-01-231-1/+1
| | | | | | | Replace Nokia contact email address with Qt Project website. Change-Id: I431bbbf76d7c27d8b502f87947675c116994c415 Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
* Update copyright year in license headers.Jason McDonald2012-01-051-1/+1
| | | | | Change-Id: I02f2c620296fcd91d4967d58767ea33fc4e1e7dc Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
* Update licenseheader text in source files for qtbase Qt moduleJyri Tahtela2011-05-241-17/+17
| | | | | | | Updated version of LGPL and FDL licenseheaders. Apply release phase licenseheaders for all source files. Reviewed-by: Trust Me
* Initial import from the monolithic Qt.Qt by Nokia2011-04-271-0/+892
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
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