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Date: Thu, 29 Jul 2010 14:04:46 +0900 From: Masami Hiramatsu <masami.hiramatsu.pt@...achi.com> To: Srikar Dronamraju <srikar@...ux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...e.hu>, Steven Rostedt <rostedt@...dmis.org>, Randy Dunlap <rdunlap@...otime.net>, Arnaldo Carvalho de Melo <acme@...radead.org>, Linus Torvalds <torvalds@...ux-foundation.org>, Christoph Hellwig <hch@...radead.org>, Oleg Nesterov <oleg@...hat.com>, Mark Wielaard <mjw@...hat.com>, Mathieu Desnoyers <mathieu.desnoyers@...icios.com>, Andrew Morton <akpm@...ux-foundation.org>, Naren A Devaiah <naren.devaiah@...ibm.com>, Jim Keniston <jkenisto@...ux.vnet.ibm.com>, Frederic Weisbecker <fweisbec@...il.com>, "Frank Ch. Eigler" <fche@...hat.com>, Ananth N Mavinakayanahalli <ananth@...ibm.com>, LKML <linux-kernel@...r.kernel.org>, "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>, 2nddept-manager@....hitachi.co.jp Subject: Re: [PATCHv10 2.6.35-rc6-tip 9/14] trace: uprobes trace_event interface Srikar Dronamraju wrote: > diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig > index c681fa7..16e2a8c 100644 > --- a/kernel/trace/Kconfig > +++ b/kernel/trace/Kconfig > @@ -482,6 +482,22 @@ config RING_BUFFER_BENCHMARK > > If unsure, say N. > > +config UPROBE_EVENT > + bool "Enable uprobes-based dynamic events" > + depends on ARCH_SUPPORTS_UPROBES > + depends on MMU > + select UPROBES > + select PROBE_EVENTS > + select TRACING > + default n > + help > + This allows the user to add tracing events on top of userspace dynamic > + events (similar to tracepoints) on the fly via the traceevents interface. > + Those events can be inserted wherever uprobes can probe, and record > + various registers. > + This option is required if you plan to use perf-probe subcommand of perf > + tools on user space applications. > + Possible enhancement: Moving this config right after KPROBE_EVENT, because those two provide similar dynamic events. Thank you, -- Masami HIRAMATSU 2nd Research Dept. Hitachi, Ltd., Systems Development Laboratory E-mail: masami.hiramatsu.pt@...achi.com -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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