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* Remove all "old atomic" code from QtThiago Macieira2013-12-101-8/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | The new atomic code was introduced in Qt 5.0. The platforms that did not get ported were announced as deprecated in Qt 5.2. The code is now removed in Qt 5.3. The status for the platform/compiler/OS combinations affected is: * Linux with GCC or Clang: still compiles on all platforms (via qatomic_cxx11.h or qatomic_gcc.h) * INTEGRITY with Green Hills compiler: no longer compiles * Solaris on UltraSPARC, with Sun Studio: no longer compiles * AIX on POWER5 or 6, with IBM Visual Age: no longer compiles (probably did not compile Qt 5.0 either) * VxWorks in kernel mode: no longer compiles [ChangeLog][General] Support for the following platforms has been removed, due to lack of interest in updating support: INTEGRITY, VxWorks, Solaris on UltraSPARC (with the Sun Studio compiler suite), AIX on POWER processors (with IBM Visual Age compiler suite). Change-Id: I8a961385fd95011c016b2b1eec52034794dae3e1 Reviewed-by: Olivier Goffart <ogoffart@woboq.com> Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com> Reviewed-by: Lars Knoll <lars.knoll@digia.com> Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
* Unify the atomic implementation for x86 architecturesThiago Macieira2012-03-281-1/+0
| | | | | | | | | | | It's almost exactly the same code in both files, so let's have one file only. That means we need an #ifdef for the special case of 64-bit types on i386. Also take the opportunity to add a comment explaining how this works. Change-Id: I50d274fa026806ae511b1045aa8a5c25daaa0edc Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
* Rename qatomic_x86_64.h to qatomic_x86.hThiago Macieira2012-03-281-1/+1
| | | | | | | | | This is the first step in merging the i386 and x86-64 architectures. The next commit will bring i386 support into qatomic_x86.h. Change-Id: I24105ea70f3fc29b3fb779a70053f99117440573 Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
* Rename Q_PROCESSOR_POWERPC to Q_PROCESSOR_POWERBradley T. Hughes2012-02-201-1/+1
| | | | | | | | | IBM's POWER and the PowerPC architecture have been merged into a single ISA, the Power ISA (see http://www.power.org). Use this unified name in Qt. Change-Id: Ia41492b0031d890843e43c5f7ecd1e60c65bb75b Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
* Remove usages of QT_ARCH and QT_ARCH_* from qtbaseBradley T. Hughes2012-02-171-6/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The architecture is detected at compile time based on the predefined macros from the compiler. Don't use QT_ARCH in .pro, .pri, or .prf files. The PNG_NO_ASSEMBLER_CODE define from libpng.pri is not present in the current copy of src/3rdparty/libpng, so no change in functionality is expected. The conditional for the SUPPORT_JIT define in pcre.pri is moved to src/3rdparty/pcre/config.h, again so that we can use the compiler's predefined macros to detect the architecture at compile time. Replace QT_ARCH_ARM, QT_ARCH_MIPS, and QT_ARCH_SPARC with their Q_PROCESSOR_* equivalents. Replace QT_ARCH_INTEGRITY, QT_ARCH_VXWORKS, and QT_ARCH_WINDOWSCE with their Q_OS_* equivalents. Note that this commit also effectively disables the SPARC atomic implementation. An inline implementation for SPARC needs to be added, or we remove the current code and instead rely on the GCC intrinsic or C++11 std::atomic support on SPARC. Note also that this commit does not remove QT_ARCH from configure or qconfig.h. This will continue to be set until all Qt 5 projects can be moved away from using QT_ARCH. Change-Id: I5de747cc4436d21941329974cff3016970f497b8 Reviewed-by: Thiago Macieira <thiago.macieira@intel.com> Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
* Cleanup HEADERS+=... in src/corelib/arch/arch.priBradley T. Hughes2012-02-131-23/+18
| | | | | | | | | Include all qatomic_*.h files in HEADERS, since we don't know which include the compiler will end up choosing in the end (operating system specific includes are still conditionally included, though). Change-Id: I4241e40ad51d34dede04be0c4ee95378d6f3d037 Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
* Add src/corelib/arch/qatomic_unix.h and qatomic_unix.cppBradley T. Hughes2012-02-131-0/+6
| | | | | | | | | | | | This provides a fallback implementation on UNIX when the Q_PROCESSOR_* and Q_CC_*/Q_COMPILER_* checks fail to find an implementation. Note that we always compile qatomic_unix.cpp, but code is only included when QATOMIC_UNIX_H is defined (meaning the checks above did not find an implementation). Change-Id: I8ce047847206003b4fa96eb3fb76b1c2ffbc2dfc Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
* Remove qatomic_arch.hBradley T. Hughes2012-02-131-1/+0
| | | | | | | | | | | | Make qbasicatomic.h include the OS/compiler/processor dependent implementation. For implementations that have not yet been ported to declare a QAtomicOps, they need to #include <QtCore/qoldbasicatomic.h>, and the new QBasicAtomicInteger and QBasicAtomicPointer should not be declared. Change-Id: Ia951834484c9f8dfa75131592e5e716b68ff989b Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
* Remove the generic atomic implementationBradley T. Hughes2012-02-131-5/+2
| | | | | | | | | This implementation is not used on Windows, and needs to be updated on UNIX for processors that we do not support (this will be done in a separate commit). Change-Id: I471d0ed00f4e8b89ecfa400796a2dbe2330935c6 Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
* Remove HP PA-RISC atomic implementation.Bradley T. Hughes2012-02-131-1/+0
| | | | | | | | | | | This architecture is obsolete and discontinued. Support for PA-RISC can be re-added if needed, but it would be preferred to use the GCC intrinsic support from qatomic_gcc.h (on Linux/HPPA, for example). Change-Id: I952e521a2c8c68840df0d44843b5487d5c20b135 Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
* Remove the SH atomic implementation...Bradley T. Hughes2012-02-131-1/+0
| | | | | | | | | | | | ... but keep SH-4a, which provides a more efficient implementation. The implementation removed here was very similar to the code removed by commit dc5388e79b71d796c1207681235cf007c39810bd. Support for SH can be provided by qatomic_gcc.h, or re-added in the future if absolutely necessary. Change-Id: Ic38b57c9513fc9c3c99ba7e102780a3939b735b9 Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
* Use Q_PROCESSOR_* when chosing an atomic implementationBradley T. Hughes2012-02-081-1/+0
| | | | | | | | | | 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>
* Remove src/corelib/arch/nacl/* and qatomic_nacl.hBradley T. Hughes2012-02-031-1/+0
| | | | | | | | | | This implementation uses the GCC __sync_* intrinsics, which we do not need to duplicate after commit 2bbd2262b3974fb4e39341a23e40ffdf1655ebe9 (which added qatomic_gcc.h). Change-Id: I59b6e4a03e83f58f4145a5ab2bfd635fe9ab686f Reviewed-by: Morten Johan Sørvig <morten.sorvig@nokia.com> Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
* Remove src/corelib/arch/avr32/* and qatomic_avr32.hBradley T. Hughes2012-02-031-1/+0
| | | | | | | | | This implementation uses the GCC __sync_* intrinsics, which we do not need to duplicate after commit 2bbd2262b3974fb4e39341a23e40ffdf1655ebe9 (which added qatomic_gcc.h). Change-Id: I2cab86deacad1c37f17f0c5836d9faf2ad366495 Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
* Rename qatomic_windows.h to qatomic_msvc.hBradley T. Hughes2012-02-031-4/+4
| | | | | | | | | | The QT_ARCH_WINDOWS(CE) define(s) aren't used to control which header to include anymore, so just remove it. We also do not need the empty src/corelib/arch/windows/arch.pri. Change-Id: I5400fc852af31907e533d0278540b8cd3da391cb Reviewed-by: Friedemann Kleint <Friedemann.Kleint@nokia.com> Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
* Add a set of atomics based on C++11's std::atomicThiago Macieira2012-01-281-1/+2
| | | | | | | | | | | | | | | | | | | | | The C++11 std::atomic type is very close to our API, to the point one has to wonder if the committe was inspired by it. It provides all of the memory semantics that Qt requires and more, plus some compare-and-swap operations that we don't use. The idea of returning the actual value in the event of a failed compare-and-swap is actually quite good, as often we'll retry with it. We just couldn't come up with a good name (fetchAndTestAndSet?). The C++11 atomics require that the compiler support constexpr as well, since std::atomic itself isn't required by the standard to be trivially-constructible (in fact, it has a constexpr constructor in the standard). For that reason, we need constexpr so we can add a constructor to QBasicAtomic too. Change-Id: I12c51455ba73350a6f7501aacc2ca7681c4369dd Reviewed-by: Thiago Macieira <thiago.macieira@intel.com> Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
* Add a set of atomics based on GCC intrinsicsThiago Macieira2012-01-281-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | With this implementation, we can have Qt run on any architecture that GCC supports without having to write specialised code. However, on some architectures, the code that GCC generates is not optimal: it uses locking on ARMv5 and it's always fully-ordered. For that reason, it appears after the Qt native assembly implementations (it's a fallback, not an override). Since they all have fully-ordered memory semantics, we define only the xxxRelaxed functions. The exception is __sync_lock_and_test, which has acquire semantics, so we need to define the Release and Ordered versions too. On some architectures, GCC can support atomics on types different than 32-bit and pointer-sized (like x86, x86-64, ARM and even MIPS). However, there's no standardised way of telling: GCC seems to define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_{1,2,4,8} if those operations are present, but I couldn't find it on the ARM compiler (it was there for i386, x86-64, IA-64 and MIPS). Change-Id: I55ff7a7c0cfc6388b7ad8e2c0dedecffdf2a3e01 Reviewed-by: Thiago Macieira <thiago.macieira@intel.com> Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
* Remove the 'macosx' archBradley T. Hughes2012-01-261-1/+2
| | | | | | | | | | | | | The new atomic implementation chooses which header to include based on what #define's are set by the compiler (i.e. __x86_64__ or __i386__). Because of this, the qatomic_macosx.h header isn't used anymore. This also means that the configure script does not need to use or look for this file anymore, it should just use the normal uname -m detection. Change-Id: Ibf275488735483268286196952299c0e496dfd1f Reviewed-by: Morten Johan Sørvig <morten.sorvig@nokia.com> Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@nokia.com>
* Remove Symbian code from QtCore.Xizhi Zhu2012-01-241-1/+1
| | | | | Change-Id: I9abdc674bcfa7bb38ce27c5213c5a672f59e63d5 Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
* Add atomic implementation for Native Client.Morten Johan Sorvig2012-01-201-1/+2
| | | | | | | Uses gcc compiler intrinsics, similar to avr32. Change-Id: I10cc2bd3cad67ee002386bab1ea764a4ff5ce727 Reviewed-by: Morten Johan Sørvig <morten.sorvig@nokia.com>
* Remove S60/symbian specific code in corelib/archLiang Qi2011-11-011-4/+1
| | | | | | | | | Clean up and remove Symbian specific code and data. Change-Id: I41794085fd5122310b1fdf4c524c6e77d22e8500 Reviewed-by: Lars Knoll <lars.knoll@nokia.com> Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
* Avoid recursively including the same arch.pri filePrasanth Ullattil2011-04-271-1/+3
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* Initial import from the monolithic Qt.Qt by Nokia2011-04-271-0/+38
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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