linux-kernel - Re: [GIT PULL] tracing: Syscalls trace events + perf support

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Message-ID: <20090812142516.GB2711@redhat.com>
Date:	Wed, 12 Aug 2009 10:25:16 -0400
From:	Jason Baron <jbaron@...hat.com>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Frederic Weisbecker <fweisbec@...il.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Lai Jiangshan <laijs@...fujitsu.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>,
	Jiaying Zhang <jiayingz@...gle.com>,
	Martin Bligh <mbligh@...gle.com>,
	Li Zefan <lizf@...fujitsu.com>,
	Masami Hiramatsu <mhiramat@...hat.com>
Subject: Re: [GIT PULL] tracing: Syscalls trace events + perf support

On Wed, Aug 12, 2009 at 01:14:36PM +0200, Ingo Molnar wrote:
> another thing: could we please also have a generic, highlevel 
> tracepoint (in addition to the specific tracepoints) that
> enumerates the raw syscall Nr and the parameters it gets - in a
> single tracepoint?
> 

The specific tracepoints, are all layered on 2 (entry, exit) generic
tracepoints already. So this shouldn't be too hard...The parameters it
gets might be tricky, since there are a variable number b/w different
syscalls? 

thanks,

-Jason
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