[llvm-dev] [cfe-dev] XRay Trace of Clang, Loadable through Chrome Trace Viewer

Brian Cain via llvm-dev llvm-dev at lists.llvm.org
Tue Dec 5 09:17:42 PST 2017

On Tue, Dec 5, 2017 at 9:49 AM, Dean Michael Berris via cfe-dev <
cfe-dev at lists.llvm.org> wrote:

> Hi cfe-dev@ and llvm-dev@,
> I've attached a Chrome trace-viewer readable trace of a clang built with
> XRay instrumentation (additional build/link flags="-fxray-instrument
> -fxray-instruction-threshold=75") with the latest "top-of-trunk" version
> of clang with the recent updates to the XRay runtime supporting record
> filtering.
> To load the attached file, go to 'chrome://tracing' in your
> Chrome/Chromium browser and load the .gz file directly. Pressing '?' should
> give a help dialog.

This is an interesting feature.  Is it designed to accept arbitrary xray
trace logs or only ones for/from Chrome/ium?

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