linux-kernel - Re: [RFC][PATCH 00/10] tracing: Use TRACE_DEFINE

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <551B9CFC.3090405@hitachi.com>
Date:	Wed, 01 Apr 2015 16:23:40 +0900
From:	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>
To:	Steven Rostedt <rostedt@...dmis.org>
CC:	linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Namhyung Kim <namhyung@...nel.org>,
	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>
Subject: Re: [RFC][PATCH 00/10] tracing: Use TRACE_DEFINE_ENUM() to show enum
 values

(2015/03/31 22:26), Steven Rostedt wrote:
> On Tue, 31 Mar 2015 16:36:51 +0900
> Masami Hiramatsu <masami.hiramatsu.pt@...achi.com> wrote:
> 
>>> Instead of adding an enum mapping file, I could add a way to look at
>>> all the events in the system that defined a mapping, and do a
>>> "s/ENUM_NAME/ENUM_VALUE/g" do the saved print formats? I'm not sure how
>>> much we want to do that in the kernel though.
>>
>> No, it's not what I expected...
> 
> Actually, I'm going to play with this idea and see how crazy it is or
> isn't. Converting the ENUMS in TP_printk() might actually be doable.
> 
> I'll write up some code and we can see if it seems sane or not. OK?

Yeah, I see. Thanks.

>> What I thought was expanding __print_symbolic() macro in TP_printk
>> with a special hash string(start with #), and when showing it via
>> event/format, replace the hash string with the strings generated
>> by the map of symbols. This will introduce a small overhead to show
>> the format as a side effect.
>>
>> Actually I even have not tried, so it's just an idea yet.
>>
> 
> If you can figure something out, please let me know!

OK, I'll try to find the other way.

Thank you!


> 
> Thanks,
> 
> -- Steve
> 

-- 
Masami HIRAMATSU
Linux Technology Research Center, System Productivity Research Dept.
Center for Technology Innovation - Systems Engineering
Hitachi, Ltd., Research & Development Group
E-mail: masami.hiramatsu.pt@...achi.com

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/