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* JIT: When making memory writable, include the exception handlerUlf Hermann2020-12-181-4/+5
| | | | | | | | | | | | | 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 Change-Id: I2fb8fb0e1dcc3450b036924463dc1b40d2020c46 Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io> (cherry picked from commit 86a595b126bc6794380dc00af80ec4802f7d058c) Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
* Add ; to Q_UNUSED and UNUSED_PARAMLars Schmertmann2020-06-261-5/+5
| | | | | | | | | This is required to remove the ; from the macro with Qt 6. Task-number: QTBUG-82978 Change-Id: Iead53d18fd790fb2d870d80ef2db79666f0d2392 Reviewed-by: Shawn Rutledge <shawn.rutledge@qt.io> Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
* make LinkBufferBase::finalizeCodeWithDisassembly() less genericRolf Eike Beer2019-12-121-16/+12
| | | | | | | | | It is actually called from only one place, so adapt it to what that caller really needs, removing more excessive newlines. Change-Id: Ieb1a24ddb911d86af1f862e35e4fdd7ad2d9ff13 Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io> Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
* masm: drop some excessive newlines in debug messagesRolf Eike Beer2019-11-281-3/+2
| | | | | | | | | | | | | | | | | | | The current output would look like this (including the blank lines): [20191115 12:32:37.378 UTC 0xc47cb8 default: Generated BaselineJIT code for [20191115 12:32:37.379 UTC 0xc47cb8 default: function expression for source [20191115 12:32:37.379 UTC 0xc47cb8 default: : [20191115 12:32:37.379 UTC 0xc47cb8 default: Code at [0x671068d1, 0x671069bd): [20191115 12:32:37.379 UTC 0xc47cb8 qt.v4.asm: disassembly not available for range 0x671068d1...0x67106997 [20191115 12:32:37.379 UTC 0xc47cb8 qt.v4.asm: Drop 3 of the newlines to make it not beautiful, but at least not totally verbose. Change-Id: I850b7acede33ddbb5f6ab74fd760962ca18988c8 Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
* Remove the bootstrap code from assembler and JITUlf Hermann2019-05-071-3/+3
| | | | | | | We don't build the assembler or the JIT in bootstrap mode. Change-Id: Idc3a56cc1e9cfba415bef9cba221c8a60ee75010 Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
* Merge remote-tracking branch 'origin/5.12' into 5.13v5.13.0-beta3Qt Forward Merge Bot2019-04-151-4/+4
|\ | | | | | | | | | | | | | | | | Conflicts: src/3rdparty/masm/assembler/LinkBuffer.h src/qmltest/doc/src/qtquicktest-index.qdoc tests/auto/qml/qqmllanguage/tst_qqmllanguage.cpp Change-Id: I7d83ad95cf489dda794dd7a0a33bad3ef3b05609
| * Ensure the correct version of LinkBuffer's performFinalization is calledAlec Rivers2019-04-121-4/+4
| | | | | | | | | | | | Task-number: QTBUG-74876 Change-Id: I8e816d29b709750b121cc63edfc5f3493a3ed119 Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
* | V4: Generate function tables on 64bit windowsUlf Hermann2018-12-031-0/+13
|/ | | | | | | | | | | | | | 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>
* V4: Add JIT kind to disassemblyErik Verbruggen2018-08-301-9/+9
| | | | | Change-Id: I6dd1cd6f795a93a186e84f5ab1c606f7e23fb85d Reviewed-by: Lars Knoll <lars.knoll@qt.io>
* Get rid of the Macro assembler for ARMv6 and earlierLars Knoll2018-08-111-2/+0
| | | | | | | | We've not been using it for quite some time, and the interpreter is the better fallback option there. Change-Id: If4d698115eec6038b369586ebdd8c1e4b88ea0ba Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
* Update Yarr to the latest version from WebKitLars Knoll2018-08-101-2/+18
| | | | | | | | | | | Updated Yarr to a to commit 4d2a53d60487cb1f8b2a9a1e9f684af336fd7d2c in WebKit. Adjusted the yarr code base to work with our older version of wtf and masm. Change-Id: I04b4593ece051e1d7aa087b87aa08c92595d1098 Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
* Swap the order of protection for cache flushTuomas Heimonen2018-06-211-2/+2
| | | | | | | | This is to accommodate operating systems such as VxWorks that require writable pages in order to perform the flushing Change-Id: Iefcd26a4d7fa74fa046776c6ee2883399a4d31dc Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
* Fix ARM64 buildSimon Hausmann2017-02-081-1/+1
| | | | | | | | | Add the ARM64 assembler to cross-compilation. Task-number: QTBUG-58568 Change-Id: I91461ebf79fb83e31e8ae2962ab0e155d308281a Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org> Reviewed-by: Lars Knoll <lars.knoll@qt.io>
* Include the ARMv7 assembler in the qmldevtools bootstrap buildSimon Hausmann2017-02-011-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | Even when the C++ target is not ARMv7 we want to include it in order to be able to generate QML cache files with code ahead of time. This requires a few changes: * The Jump classes need to move from the AbstractMacroAssembler super-class into the concrete assembler sub-class, in order to use it in specializations. * Some of the template specializations in LinkBuffer for example or for platform dependent operations need to be pre-processor enabled when bootstrapping * The generic loadPtr/addPtr etc. functions need to move to the concrete assemblers to be able to call the correct 32-bit or 64-bit variations. * We need to force what looks like a loss of precision to the compiler in the 32-bit ARMv7 linking code when linking jumps. Finally then we can explicitly instantiate at least QV4::JIT::Assembler for ARMv7 when bootstrapping. Currently only on x86-64 hosts, but that is a temporary limitation. Change-Id: I501db2360e1fded48f17f17d9e87252d47f8537e Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
* Remove branch compaction #ifdefSimon Hausmann2017-01-311-48/+136
| | | | | | | | | | | | | Since the #ifdef for ARMv7 and ARM64 makes it impossible to cross compile, we need to replace it with a template specialization of LinkBuffer. The "old" LinkBuffer becomes LinkBufferBase, then there's a generic LinkBuffer that's a sub-class of LinkBufferBase. Then there's a BranchCompactingLinkBuffer template that implements the compaction and two ARMv7 and ARM64 specializations of LinkBuffer<T> end up being sub-classes of BranchCompactingLinkBuffer instead of LinkBufferBase. Change-Id: Ib62fe24aa6c3570dfa311edc39fde6fb5975f3cc Reviewed-by: Lars Knoll <lars.knoll@qt.io>
* Make JSC::LinkBuffer a templateSimon Hausmann2017-01-281-15/+155
| | | | | | | Unfortunately the link buffer depends on target platform types. Change-Id: Idb49e72e8e864c709293a7b315dff948bc58e62a Reviewed-by: Lars Knoll <lars.knoll@qt.io>
* Say hello to QtV4 module.Jędrzej Nowacki2013-01-301-0/+297
Change-Id: I507cd5707b7d7223a0d901cf939896fb2649b684 Reviewed-by: Lars Knoll <lars.knoll@digia.com>
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