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Re: tracing.rst neglects to document syntax of trace-events files
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From: |
Daniel P . Berrangé |
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Subject: |
Re: tracing.rst neglects to document syntax of trace-events files |
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Date: |
Tue, 18 Jan 2022 09:02:35 +0000 |
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User-agent: |
Mutt/2.1.3 (2021-09-10) |
On Tue, Jan 18, 2022 at 09:23:50AM +0100, Markus Armbruster wrote:
> Almost[*] all trace-events files start with this line:
>
> # See docs/devel/tracing.rst for syntax documentation.
>
> But I can't find syntax documentation there.
In that doc, under the heading "Declaring trace events", is a wordy
paragraph that looks like it was attempting to fill this need,
especially the last part.
[quote]
Each event declaration will start with the event name, then its arguments,
finally a format string for pretty-printing. For example::
qemu_vmalloc(size_t size, void *ptr) "size %zu ptr %p"
qemu_vfree(void *ptr) "ptr %p"
[/quote]
It certainly has plenty of scope for improvement though !
Regards,
Daniel
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