[Development] Requesting Feature Freeze exception for CTF tracing backend

Antti Määttä antti.maatta at qt.io
Fri Dec 9 14:38:32 CET 2022


Following two changes CTF tracing backend (https://bugreports.qt.io/browse/QTBUG-106399, https://codereview.qt-project.org/c/qt/qtbase/+/440749) and
related tool for generating tracepoints files (https://bugreports.qt.io/browse/QTBUG-107238, https://codereview.qt-project.org/c/qt/qtbase/+/436672) were not finished on time before feature freeze.

The first change extends the existing Q_TRACE mechanism with a new platform independent backend based on CTF format. The second one is a tool that makes it easier to generate tracepoint files for the existing tracegen tool.

The changes are required for application level profiling and are the basis for further development in that area. It would be beneficial to get those changes in for the LTS 6.5 release.

The changes are currently in review and should not have work left in them unless something comes up based on new comments.

Antti Määttä
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