linux-kernel - Re: KGTP (Linux Kernel debugger and tracer) 20110405 release

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Message-ID: <BANLkTinWoPQ+8kz6A4qCvYqEcj=FhzvBDw@mail.gmail.com>
Date:	Thu, 21 Apr 2011 11:27:50 +0800
From:	Hui Zhu <teawater@...il.com>
To:	Steven Rostedt <rostedt@...dmis.org>
Cc:	Dongdong Deng <libfetion@...il.com>,
	Jason Wessel <jason.wessel@...driver.com>,
	Peter Zijlstra <peterz@...radead.org>,
	linux-kernel@...r.kernel.org,
	Marc Khouzam <marc.khouzam@...csson.com>,
	Thiago Jung Bauermann <thiago.bauermann@...il.com>,
	Steven <mqyoung@...il.com>, colyli@...il.com,
	Christoph Hellwig <hch@...radead.org>
Subject: Re: KGTP (Linux Kernel debugger and tracer) 20110405 release

On Thu, Apr 21, 2011 at 10:46, Steven Rostedt <rostedt@...dmis.org> wrote:
> On Fri, Apr 08, 2011 at 04:25:28PM +0800, Hui Zhu wrote:
>> After a discussion with Dongdong, I think I have different idea with that.
>>
>> 1. I don't want change the current interface of kgtp.  Because a proc
>> interface is very simple and stable interface.
>> And with proc, kgtp can very easy connect with GDB without Kernel
>
> Can you use the debugfs interface instead of proc. Proc is too
> overloaded as is, and debugfs seems to be a perfect match in this case.
>
> -- Steve

Hi Steve,

I really agree with what you said. I will change it.  Thank a lot.

Best,
Hui

>
>> help.  Please see
>> https://code.google.com/p/kgtp/wiki/HOWTO#Make_GDB_connect_to_gtp and
>> https://code.google.com/p/kgtp/wiki/HOWTO#Offline_debug
>>
>> 2. I don't want remove the kprobe.  Because what I want kgtp is to be
>> a Linux Kernel tracepoint interface with gdb.  I will add other
>> tracepoint like TRACE_EVENT.
>> And move it to gdb breakpoint is too far away from it.  And it is too
>> much depend on kgdb.
>>
>> Of course, I am very happy to share the GDB rsp tracepoint parse code
>> with kgdb to make it support gdb tracepoint.
>> Trust me, My code is more clear than the doc of GDB.  :)
>>
>
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