Re: [PATCHv10 2.6.35-rc6-tip 9/14] trace: uprobes trace_event interface

From: Masami Hiramatsu
Date: Thu Jul 29 2010 - 01:05:05 EST


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@xxxxxxxxxxx

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