linux-kernel - [PATCH v2 0/3] tracing: probeevent: Fix probe argument parser and handler

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Date:   Fri, 18 Jan 2019 13:43:56 +0900
From:   Masami Hiramatsu <mhiramat@...nel.org>
To:     Steven Rostedt <rostedt@...dmis.org>
Cc:     Andreas Ziegler <andreas.ziegler@....de>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        Ingo Molnar <mingo@...hat.com>, linux-kernel@...r.kernel.org
Subject: [PATCH v2 0/3] tracing: probeevent: Fix probe argument parser and handler

Hi,

Here is the 2nd version of series to fix several bugs in probe event
argument parser and handler routines.

In this version I just added Fixes tags so that it makes clear which
release should be fixed.

Recently I got 2 issues reported by Andreas, see
https://www.mail-archive.com/linux-kernel@vger.kernel.org/msg1899098.html

One issue is already fixed by Andreas (Thanks!) but $comm handling
issue still exists on uprobe event. [1/3] fixes it.
And I found other issues around that, [2/3] is just a trivial cleanup,
[3/3] fixes $comm type issue which occurs not only uprobe events but
also on kprobe events. Anyway, after this series applied, $comm must
be "string" type and not be an array.

Thank you,

---

Masami Hiramatsu (3):
      tracing: uprobes: Re-enable $comm support for uprobe events
      tracing: probeevent: Do not accumulate on ret variable
      tracing: probeevent: Fix to make the type of $comm string

 kernel/trace/trace_probe.c      |   13 +++++++------
 kernel/trace/trace_probe_tmpl.h |    2 +-
 kernel/trace/trace_uprobe.c     |   15 +++++++++++++--
 3 files changed, 21 insertions(+), 9 deletions(-)

--
Masami Hiramatsu (Linaro) <mhiramat@...nel.org>