linux-kernel - Re: [RFC][PATCH 1/8] perf: Separate out trace-cmd parse-events from perf files

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Date:	Tue, 16 Aug 2011 18:08:07 -0600
From:	David Ahern <dsahern@...il.com>
To:	Steven Rostedt <rostedt@...dmis.org>, Ingo Molnar <mingo@...e.hu>,
	Frederic Weisbecker <fweisbec@...il.com>
CC:	linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>,
	Peter Zijlstra <peterz@...radead.org>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	Borislav Petkov <bp@...en8.de>,
	Arjan van de Ven <arjan@...radead.org>
Subject: Re: [RFC][PATCH 1/8] perf: Separate out trace-cmd parse-events from
 perf files

On 08/15/2011 10:22 AM, Steven Rostedt wrote:
> On Mon, 2011-08-15 at 10:14 -0600, David Ahern wrote:
>> Hi Steve:
>>
>> On 08/05/2011 02:59 PM, Steven Rostedt wrote:
>>> From: Steven Rostedt <srostedt@...hat.com>
>>>
>>> Move the trace-event-parse.c code that originally came from trace-cmd into
>>> their own files. The new file will be called trace-parse-events.c, as
>>> the name of trace-cmd's file was parse-events.c too, but it conflicted
>>> with the parse-events.c file in perf that parses the command line.
>>>
>>> This tries to update the code with mimimal changes.
>>>
>>> Perf specific code stays in the trace-event-parse.[ch] files and
>>> the common parsing code is now in trace-parse-events.c and
>>> trace-parse-events.h.
>>
>> What branch should these apply cleanly to?
> 
> They are based off of v3.0. You can get these patches from my repo as
> described in the 0/8 announce email.

Unfortunately I hastily deleted the 0/8 thread while on vacation last
week (gmail on Android thing), so I apologize for shifting the discussion.

With a little bit of hacking on top of your patches I was able to get
the trace-cmd plugins working with perf. e.g.,
        qemu-kvm 11971 [001] 30401.777391: kvm_apic_accept_irq: apicid 0
vec 239 (Fixed|edge)
        qemu-kvm 11971 [001] 30401.777405: kvm_inj_virq: irq 239
        qemu-kvm 11971 [001] 30401.777415: kvm_entry: vcpu 0
        qemu-kvm 11971 [001] 30401.777430: kvm_exit: reason APIC_ACCESS
rip 0xffffffff8101dbe4 info 10b0 0

So, what is the next step for making this a reality -- i.e., getting the
common code into a lib in tools?

David
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