Re: [PATCH v2 0/3] trace: Add a trace backend for the recorder library

[Stefan Hajnoczi <stefanha@redhat.com>]

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On Fri, Jun 26, 2020 at 06:27:03PM +0200, Christophe de Dinechin wrote:
> The recorder library implements low-cost always-on tracing, with three
> usage models:
> 
> 1. Flight recorder: Dump information on recent events in case of crash
> 2. Tracing: Individual traces can be enabled using environment variables
> 3. Real-time graphing / control, using the recorder_scope application
> 
> This short series introduces a new "recorder" back-end which connects
> to the recorder. Traces using the recorder are intentionally "always on".
> An example is given of how the recorder can also be used separately
> from generated traces. This can be useful if you want to enable
> multiple related traces for a particular topic.
> 
> This series requires a small makefile fix submitted earlier, included
> here for convenience.
> 
> Christophe de Dinechin (3):
>   Makefile: Compute libraries for libqemuutil.a and libvhost-user.a
>   trace: Add support for recorder back-end
>   trace: Example of "centralized" recorder tracing

Please add a build to .travis.yml that enables recorder. That way we'll
catch build failures.

Thanks,
Stefan

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