linux-kernel - Re: [PATCH 4/5] libtraceevent: Add __rel_loc relative location attribute support

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Message-ID: <20211116172332.655bae77@gandalf.local.home>
Date:   Tue, 16 Nov 2021 17:23:32 -0500
From:   Steven Rostedt <rostedt@...dmis.org>
To:     Masami Hiramatsu <mhiramat@...nel.org>
Cc:     Beau Belgrave <beaub@...ux.microsoft.com>,
        linux-kernel@...r.kernel.org, Namhyung Kim <namhyung@...nel.org>,
        Tom Zanussi <zanussi@...nel.org>
Subject: Re: [PATCH 4/5] libtraceevent: Add __rel_loc relative location
 attribute support

On Mon, 15 Nov 2021 19:20:36 +0900
Masami Hiramatsu <mhiramat@...nel.org> wrote:

> Add '__rel_loc' new dynamic data location attribute which encodes
> the data location from the next to the field itself. This is similar
> to the '__data_loc' but the location offset is not from the event
> entry but from the next of the field.
> 
> This patch adds '__rel_loc' decoding support in the libtraceevent.

Note, libtraceevent in the kernel is deprecated.

Care to send a patch against:

  https://git.kernel.org/pub/scm/libs/libtrace/libtraceevent.git/

And Cc linux-trace-devel@...r.kernel.org

Thanks!

-- Steve

> 
> Signed-off-by: Masami Hiramatsu <mhiramat@...nel.org>
> ---
>  tools/lib/traceevent/event-parse.c  |   14 ++++++++++++++
>  tools/lib/traceevent/event-parse.h  |    1 +
>  tools/lib/traceevent/parse-filter.c |    5 ++++-
>  3 files changed, 19 insertions(+), 1 deletion(-)