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path: root/src/qml/jsruntime/qv4executableallocator.cpp
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* JIT: When making memory writable, include the exception handlerUlf Hermann2020-12-171-2/+12
| | | | | | | | | | | | makeWritable() rounds the memory down to the next page boundary. Usually we include the exception handler this way, unless the offset from the page boundary is less than the exception handler size. Make it explicit that we do want the exception handler to be writable, too. Fixes: QTBUG-89513 Pick-to: 5.15 6.0 Change-Id: I2fb8fb0e1dcc3450b036924463dc1b40d2020c46 Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
* Port from QMutex::Recursive to QRecursiveMutexMarc Mutz2019-07-311-3/+1
| | | | | | Change-Id: I5bf128b4479971e87d377707f2ebf267ccba1f1d Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io> Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
* V4: Generate function tables on 64bit windowsUlf Hermann2018-12-031-2/+8
| | | | | | | | | | | | | | In order for global exception handlers to be called reliably, the runtime needs to unwind through JIT-generated code. This can be facilitated by installing a "function table" for each JITed function that specifies "use the frame pointer". Also make sure to generate a function table for JIT'ed regular expressions. Those were forgotten also in the linux case. Fixes: QTBUG-50061 Change-Id: Ib0b8ae9356ed80afe1cab017e36efa4ccbe73f90 Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
* use nullptr consistently (clang-tidy)Shawn Rutledge2018-02-261-3/+3
| | | | | | | | | | | | | From now on we prefer nullptr instead of 0 to clarify cases where we are assigning or testing a pointer rather than a numeric zero. Also, replaced cases where 0 was passed as Qt::KeyboardModifiers with Qt::NoModifier (clang-tidy replaced them with nullptr, which waas wrong, so it was just as well to make the tests more readable rather than to revert those lines). Change-Id: I4735d35e4d9f42db5216862ce091429eadc6e65d Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
* Qml jsruntime: replace 'foreach' with 'range for'Anton Kudryavtsev2016-09-161-1/+1
| | | | | Change-Id: Ieb99b73037bc5b07caf62121d51a17c3025df97c Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
* Updated license headersJani Heikkinen2016-01-191-14/+20
| | | | | | | | | | | From Qt 5.7 -> LGPL v2.1 isn't an option anymore, see http://blog.qt.io/blog/2016/01/13/new-agreement-with-the-kde-free-qt-foundation/ Updated license headers to use new LGPL header instead of LGPL21 one (in those files which will be under LGPL v3) Change-Id: Ic36f1a0a1436fe6ac6eeca8c2375a79857e9cb12 Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
* Update copyright headersJani Heikkinen2015-02-121-7/+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. Change-Id: I61120571787870c0ed17066afb31779b1e6e30e9 Reviewed-by: Iikka Eklund <iikka.eklund@theqtcompany.com>
* Update license headers and add new licensesJani Heikkinen2014-08-251-19/+11
| | | | | | | | | - Renamed LICENSE.LGPL to LICENSE.LGPLv21 - Added LICENSE.LGPLv3 & LICENSE.GPLv2 - Removed LICENSE.GPL Change-Id: I84a565e2e0caa3b76bf291a7d188a57a4b00e1b0 Reviewed-by: Jani Heikkinen <jani.heikkinen@digia.com>
* Use Q_ASSERT instead of assertLars Knoll2014-03-191-8/+7
| | | | | Change-Id: I6185b59a7dfd6977ce82581ab4385e07d78f13f6 Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
* Remove qv4unwindhelper classLars Knoll2013-10-291-1/+0
| | | | | | | | This class is not required anymore to generate stack traces, as we now store the required information in the JS context stack. Change-Id: I3893c805ca89dda70efde07fdd120e7dfaf3639f Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
* Allow delayed deallocation in the executable memory allocatorSimon Hausmann2013-09-201-1/+16
| | | | | | | | | Allow for allocations to outlive the allocator itself. When the allocator dies, it invalidates any remaining non-free allocations, making them safe to delete later. Change-Id: I6c71cddbbd5dcaff1ad50f3991a3c710d4f96737 Reviewed-by: Lars Knoll <lars.knoll@digia.com>
* Implement plain simple locking in the executable memory allocatorSimon Hausmann2013-09-121-0/+10
| | | | | | | | | | | | Memory allocations may now also happen to come from a separate thread, the QML loader thread where we also compile the JavaScript code and (likely) use the JIT. Commonly that will be the only place where the allocator will be used. The main thread uses the allocator only when an exception is thrown (to look up platform unwind info) or when the garbage collector runs and decides to delete objects that also hold the last reference to executable memory. Change-Id: I8bb710184164cd8d32168449f48d09f7ee828e6e Reviewed-by: Lars Knoll <lars.knoll@digia.com>
* Restructure source codeLars Knoll2013-08-081-0/+220
Move the v4 engine classes from a subdir of qml/qml into two subdirs (compiler and jsruntime) of the qml module Remove an unsued qv4syntaxchecker class, and move the moth code directly into compiler. Change-Id: I6929bede1f25098e6cb2e68087e779fac16b0c68 Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
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