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Date:   Thu, 26 Apr 2018 21:42:53 -0400
From:   Steven Rostedt <>
To:     Masami Hiramatsu <>
Cc:, Ingo Molnar <>,
        Namhyung Kim <>,
        Tom Zanussi <>,
        Arnaldo Carvalho de Melo <>,,,, Ravi Bangoria <>
Subject: Re: [PATCH v7 00/16] tracing: probeevent: Improve fetcharg features

On Wed, 25 Apr 2018 21:16:06 +0900
Masami Hiramatsu <> wrote:

> Hi,
> This is the 7th version of the fetch-arg improvement series.
> This includes variable changes on fetcharg framework like,
> - Add fetcharg testcases (syntax, argN, symbol, string and array)
>   and probepoint testcase.
> - Rewrite fetcharg framework with fetch_insn, switch-case based
>   instead of function pointer.
> - Add "symbol" type support, which shows symbol+offset instead of
>   address value.
> - Add "$argN" fetcharg, which fetches function parameters.
>   (currently only for x86-64)
> - Add array type support (including string arrary :) ) ,
>   which enables to get fixed length array from probe-events.
> - Add array type support for perf-probe, so that user can
>   dump partial array entries.


Thanks for posting this! I'm currently trying to get a set of patches
in the -rc releases, and this would be for 4.18 (or 5.0?), I'll try to
get some time next week to look at this.


-- Steve

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