Re: [Dle-develop] [PATCH tracing/kprobes 0/7] tracing/kprobes: kprobe-based event tracer update and perf support

[Frederic W. <fwe...@gm...>]

On Thu, Sep 10, 2009 at 07:52:58PM -0400, Masami Hiramatsu wrote:
> Hi Frederic,
> 
> This series fixes bugs and upgrades kprobe-based event tracer
> as a dynamic event tracer on ftrace/perf tools. This also enhances
> tracer output format to show each argument name and event name on
> each entry.
> 
> With this series, users can add trace events dynamically on ftrace
> and use those events with perf tools as below.
> 
> (Step.1) Define new events under new group
> 
> $ echo p:mygroup/myprobe do_sys_open dfd=a0 filename=a1 flags=a2 mode=a3 \
>  > /debug/tracing/kprobes_events
> $ echo r:mygroup/myretprobe do_sys_open rv >> /debug/tracing/kprobes_events
> $ cat /debug/tracing/kprobes_events
> p:myprobe do_sys_open+0 dfd=a0 filename=a1 flags=a2 mode=a3
> r:myretprobe do_sys_open+0 rv=rv



I've tested the above example and it works very well,
so I've applied this set, and the previous pending patches
in:

git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing.git \
	tracing/kprobes

Thanks.