From mboxrd@z Thu Jan  1 00:00:00 1970
From: yannick.brosseau@gmail.com (Yannick Brosseau)
Date: Wed, 16 Jan 2013 11:55:27 -0500
Subject: [lttng-dev] [lttng-tools PATCH] Add support for kernel uprobes
In-Reply-To: <20130116155238.GA11695@Krystal>
References: <1358132617-18443-1-git-send-email-yannick.brosseau@gmail.com>
	<20130116155238.GA11695@Krystal>
Message-ID: <50F6DB7F.5070202@gmail.com>

On 2013-01-16 10:52, Mathieu Desnoyers wrote:
> * Yannick Brosseau (yannick.brosseau at gmail.com) wrote:
>> Inspired by the k*probe support.
>>
>> It add a new option to enable-event --uprobe which require a path name
>> and an offset in the specified file.
>>
>> (The file Documentation/trace/uprobetracer.txt in the kernel source provides
>> and example on how to extract the offset for a symbol in a program)
> Asking Masami and looking at perf might help us add support for lookup
> by file/lineno (using dwarf info). I think in terms of usability this is
> really important, and should appear in tools at the same time as the
> basic feature based on file/offset (or at least appear in the same
> LTTng release).
>
> We should keep in mind that liblttng-ctl is LGPLv2.1, so we cannot use
> perf code as-is without asking for the author's permission first.
> Nothing prevents us from writing this support ourself if need be though.
Ok, great, I'll look into it.