From mboxrd@z Thu Jan  1 00:00:00 1970
From: compudj@krystal.dyndns.org (Mathieu Desnoyers)
Date: Tue, 22 Nov 2011 18:08:48 -0500
Subject: [ltt-dev] LTTng 2.0 kernel instrumentation todo?
In-Reply-To: <4ECBF22C.3000504@ericsson.com>
References: <4ECBF22C.3000504@ericsson.com>
Message-ID: <20111122230848.GA750@Krystal>

* Matthew Khouzam (matthew.khouzam at ericsson.com) wrote:
> Hi, I was tracing some simple programs and came up with a list of
> "sys_unknown" tracepoints. This may or may not help for developers to
> see what they are.
> 
> sys_unknown id = 11 => exec_ve
> sys_unknown id = 119 => sigreturn
> sys_unknown id = 120 => clone
> sys_unknown id = 184 => capget
> sys_unknown id = 185 => capset
> sys_unknown id = 194 => ftruncate (?) confirm please
> sys_unknown id = 243 => set_thread_area (?) confirm please
> sys_unknown id = 250 => fadvise (?) confirm please
> sys_unknown id = 314 => sync_file_range (?) confirm please

See the _override files, that allow you to declare them by yourself.
Those are probably missing in the DEFINE_SYSCALL(*) in the kernel, so we
need to create them in the override files (they cannot be automatically
generated).

Patches are welcome,

Thanks,

Mathieu

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-- 
Mathieu Desnoyers
Operating System Efficiency R&D Consultant
EfficiOS Inc.
http://www.efficios.com