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path: root/src/qml/jsruntime/qv4stackframe.cpp
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* CRA review qml/jsruntimeFabian Kosmale2025-09-161-0/+1
| | | | | | | | | | | | | | | | | | This relies heavily on the documented fact that we only support trusted QML/JS content, meaning most files are only significant, not critical. This also extends to the handling of qmlc files (as in compilationunitmapper), as we store them in a user owned, non-shared cache directory – so any vulnerability there would already mean that an attacker has write-priviledges on user data. An exception is ArrayBuffer, which can be used with arbitrary user data, and should create a valid QBA. Fixes: QTBUG-136970 Pick-to: 6.10 6.9 6.8 QUIP: 23 Change-Id: I22033fe6ab4acf8362a8183e25b92331d45cb32c Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
* QML: Encode "missing" line number as negated address of stack frameUlf Hermann2023-05-091-1/+10
| | | | | | | | | | | | | | | This way we can identify which entry in a stack frame to amend when processing an exception in generated code. However, negative line numbers are also used to signal the position of "Ret" instructions. Since you cannot throw an exception from a "Ret" instruction, those cannot collide, but we cannot qAbs() the line number anymore when saving it in the stack trace. We have to qAbs() it in all the places where it's read. Pick-to: 6.5 Fixes: QTBUG-112946 Change-Id: I24dc4008fb7eab38e4d24e70211c22e46f1b72a7 Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
* QML: Track the statement indices together with line numbersUlf Hermann2022-10-131-10/+26
| | | | | | | | | | We will need the statement indices when tracking value type references. New value type references shall only be written back in the same statement they were created in. Task-number: QTBUG-99766 Change-Id: I83f908df034e7da8ba46ccacaa29bd9d78020d20 Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
* Qml: When cloning a stack frame, also clone its instruction pointerUlf Hermann2022-07-221-3/+3
| | | | | | | | | | | | Otherwise we get an out of range access when looking for the line number. To be extra safe, we also add another guard against this to the lineNumber() function. Pick-to: 6.2 6.3 6.4 Fixes: QTBUG-90466 Change-Id: I4d9cb52ecba2631696537f02a3c1b75c3658ceb8 Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org> Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
* Use SPDX license identifiersLucie Gérard2022-06-111-38/+2
| | | | | | | | | | | | Replace the current license disclaimer in files by a SPDX-License-Identifier. Files that have to be modified by hand are modified. License files are organized under LICENSES directory. Pick-to: 6.4 Task-number: QTBUG-67283 Change-Id: I63563bbeb6f60f89d2c99660400dca7fab78a294 Reviewed-by: Shawn Rutledge <shawn.rutledge@qt.io>
* Eliminate JS call frame from metatypes callsUlf Hermann2021-06-101-3/+10
| | | | | | | | If we call an AOT-compiled function we never need the JavaScript call frame. We can just skip its setup and save some overhead. Change-Id: I39dc2ca6eea5b5a66f3b87b642a310534cecf6cd Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
* Move the C++ and JS stack frame definitions into it's own fileLars Knoll2018-07-031-0/+74
Change-Id: I86e89e07197aec6071809c2d32bd5c98cb7ac6f6 Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
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