Re: [PATCH 0/5] trace: inroduce qmp: trace namespace

[Markus Armbruster]

Stefan Hajnoczi <stefanha@redhat.com> writes:

> On Thu, Oct 14, 2021 at 06:22:32PM +0300, Vladimir Sementsov-Ogievskiy wrote:
>> 12.10.2021 14:49, Markus Armbruster wrote:
>> > Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> writes:

[...]

>> Another possible way is to update QAPI code generator to insert a personal
>> trace point for each qmp command.. That seems more complicated to implement,
>> but I can try.
>
> That's what came to mind when I saw this series too. The QAPI generator
> can create a trace event for each QMP command. That way each command has
> a dedicated trace event that can be enabled/disabled in the usual way
> (e.g. built-in "trace" monitor command, SystemTap scripts, etc) without
> introducing special syntax.

I like how this way stays entirely within the existing interface.  I
couldn't tell you how to implement it, though :)