linux-kernel - Re: [RFC] x86: entry_64 - introduce FTRACE

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Date:	Sat, 13 Dec 2008 15:46:03 +0100
From:	"Frédéric Weisbecker" <fweisbec@...il.com>
To:	"Cyrill Gorcunov" <gorcunov@...il.com>
Cc:	"Steven Rostedt" <rostedt@...dmis.org>,
	"Steven Rostedt" <srostedt@...hat.com>,
	"Ingo Molnar" <mingo@...e.hu>, "H. Peter Anvin" <hpa@...or.com>,
	"Thomas Gleixner" <tglx@...utronix.de>,
	LKML <linux-kernel@...r.kernel.org>,
	"Alexander van Heukelum" <heukelum@...tmail.fm>
Subject: Re: [RFC] x86: entry_64 - introduce FTRACE_ frame macro

2008/12/13 Cyrill Gorcunov <gorcunov@...il.com>:
> [Steven Rostedt - Fri, Dec 12, 2008 at 04:56:47PM -0500]
> ...
> | > Steve, here is how it could look like:
> | > (I liked first proposal more :)
> |
> | I see the confusion. In ftrace.h the function graph tracer config is not
> | inside CONFIG_FUNCTION_TRACER, even though it is dependent on it (or
> | was). OK, just do your first proposal then.
> |
> | -- Steve
> |
>
> ok, I sent it yesterday as
>
>        http://lkml.org/lkml/2008/12/12/301
>        [PATCH] x86: entry_64 - introduce FTRACE_ frame macro v2
>
> Ingo, will you pick it up?
>
>                - Cyrill -
>

Hi,

Looks good and clarify the asm bits.

I wonder if the function_graph_tracer should continue to necessarily
depend on the function tracer.
It was more simplier to do so but perhaps that could be avoided with
small modifications.
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