linux-kernel - Re: [PATCH 1/3] perf, tool: Add parser generator for events parsing

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Message-ID: <1324044196.18942.105.camel@twins>
Date:	Fri, 16 Dec 2011 15:03:16 +0100
From:	Peter Zijlstra <peterz@...radead.org>
To:	Jiri Olsa <jolsa@...hat.com>
Cc:	acme@...hat.com, mingo@...e.hu, paulus@...ba.org,
	cjashfor@...ux.vnet.ibm.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/3] perf, tool: Add parser generator for events parsing

On Fri, 2011-12-16 at 15:02 +0100, Peter Zijlstra wrote:
> > event_tracepoint:       PE_NAME_TP ':' PE_NAME_TP modifier
> > event_raw:              PE_SEP_RAW PE_VALUE modifier
> > event_numeric:          PE_VALUE ':' PE_VALUE modifier
> > event_symbolic:         PE_NAME_SYM modifier
> > event_generic_hw:       PE_NAME_CACHE_TYPE '-' PE_NAME_CACHE_OP_RESULT '-' PE_NAME_CACHE_OP_RESULT modifier |
> >                         PE_NAME_CACHE_TYPE '-' PE_NAME_CACHE_OP_RESULT modifier |
> >                         PE_NAME_CACHE_TYPE modifier
> > event_breakpoint:       PE_SEP_BP ':' PE_VALUE event_breakpoint_type modifier
> > event_breakpoint_type:  PE_MODIFIER_BPTYPE | empty
> > modifier:               PE_MODIFIER_EVENT | empty
> 
> This isn't complete, we need means of specifying
> perf_event_attr::config[12] when specifying a raw event. 

Also, it might make sense to think about how to specify sysfs events
(which don't exist yet).
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