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From: "Daniel P. Berrange" <berrange@redhat.com>
To: qemu-devel@nongnu.org, Stefan Hajnoczi <stefanha@redhat.com>
Subject: Re: [Qemu-devel] [PATCH v4 11/17] trace: provide mechanism for registering trace events
Date: Thu, 22 Sep 2016 13:48:38 +0100	[thread overview]
Message-ID: <20160922124838.GN352@redhat.com> (raw)
In-Reply-To: <87fuosnlyc.fsf@fimbulvetr.bsc.es>

On Thu, Sep 22, 2016 at 02:44:11PM +0200, Lluís Vilanova wrote:
> Daniel P Berrange writes:
> 
> > Remove the notion of there being a single global array
> > of trace events, by introducing a method for registering
> > groups of events.
> 
> > Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
> 
> Except for the calls to module_call_init() (I did not check if they're all
> necessary and sufficient):

Every binary that can trigger tracepoints should have the module_call_init().
I'd done it for emulators, qemu-img, qemu-nbd, and qemu-io. I could tell
which need it, since they're the ones that need to link to the trace.o
files, otherwise you'll unresolved symbol errors. So I think what I have
is correct.

Regards,
Daniel
-- 
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  reply	other threads:[~2016-09-22 12:48 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-09-22  8:40 [Qemu-devel] [PATCH v4 00/17] Refactor trace to allow modular build Daniel P. Berrange
2016-09-22  8:40 ` [Qemu-devel] [PATCH v4 01/17] trace: add trace event iterator APIs Daniel P. Berrange
2016-09-23 13:39   ` Stefan Hajnoczi
2016-09-22  8:40 ` [Qemu-devel] [PATCH v4 02/17] trace: convert code to use event iterators Daniel P. Berrange
2016-09-22 12:20   ` Lluís Vilanova
2016-09-22 12:45     ` Daniel P. Berrange
2016-09-22  8:40 ` [Qemu-devel] [PATCH v4 03/17] trace: remove some now unused functions Daniel P. Berrange
2016-09-23 13:39   ` Stefan Hajnoczi
2016-09-22  8:40 ` [Qemu-devel] [PATCH v4 04/17] trace: remove global 'uint16 dstate[]' array Daniel P. Berrange
2016-09-23 13:51   ` Stefan Hajnoczi
2016-09-22  8:40 ` [Qemu-devel] [PATCH v4 05/17] trace: remove duplicate control.h includes in generated-tracers.h Daniel P. Berrange
2016-09-23 13:52   ` Stefan Hajnoczi
2016-09-22  8:40 ` [Qemu-devel] [PATCH v4 06/17] trace: break circular dependency in event-internal.h Daniel P. Berrange
2016-09-22 12:22   ` Lluís Vilanova
2016-09-23 13:53   ` Stefan Hajnoczi
2016-09-22  8:40 ` [Qemu-devel] [PATCH v4 07/17] trace: give each trace event a named TraceEvent struct Daniel P. Berrange
2016-09-22 12:26   ` Lluís Vilanova
2016-09-23 14:10   ` Stefan Hajnoczi
2016-09-22  8:40 ` [Qemu-devel] [PATCH v4 08/17] trace: remove the TraceEventID and TraceEventVCPUID enums Daniel P. Berrange
2016-09-22 12:35   ` Lluís Vilanova
2016-09-22 12:44     ` Daniel P. Berrange
2016-09-22 16:12       ` Lluís Vilanova
2016-09-22 18:42         ` Lluís Vilanova
2016-09-23 14:12           ` Stefan Hajnoczi
2016-09-23 14:23   ` Stefan Hajnoczi
2016-09-22  8:40 ` [Qemu-devel] [PATCH v4 09/17] trace: emit name <-> ID mapping in simpletrace header Daniel P. Berrange
2016-09-22  8:40 ` [Qemu-devel] [PATCH v4 10/17] trace: don't abort qemu if ftrace can't be initialized Daniel P. Berrange
2016-09-22  8:40 ` [Qemu-devel] [PATCH v4 11/17] trace: provide mechanism for registering trace events Daniel P. Berrange
2016-09-22 12:44   ` Lluís Vilanova
2016-09-22 12:48     ` Daniel P. Berrange [this message]
2016-09-22  8:40 ` [Qemu-devel] [PATCH v4 12/17] trace: dynamically allocate trace_dstate in CPUState Daniel P. Berrange
2016-09-22 12:47   ` Lluís Vilanova
2016-09-22  8:40 ` [Qemu-devel] [PATCH v4 13/17] trace: dynamically allocate event IDs at runtime Daniel P. Berrange
2016-09-22 12:50   ` Lluís Vilanova
2016-09-22  8:40 ` [Qemu-devel] [PATCH v4 14/17] trace: get rid of generated-events.h/generated-events.c Daniel P. Berrange
2016-09-22 12:59   ` Lluís Vilanova
2016-09-22  8:40 ` [Qemu-devel] [PATCH v4 15/17] trace: rename _read_events to read_events Daniel P. Berrange
2016-09-22  8:40 ` [Qemu-devel] [PATCH v4 16/17] trace: push reading of events up a level to tracetool main Daniel P. Berrange
2016-09-22  8:40 ` [Qemu-devel] [PATCH v4 17/17] trace: pass trace-events to tracetool as a positional param Daniel P. Berrange
2016-09-22 13:00   ` Lluís Vilanova
2016-09-22 13:04 ` [Qemu-devel] [PATCH v4 00/17] Refactor trace to allow modular build Lluís Vilanova

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