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Date:	Thu, 03 Apr 2014 15:03:26 +0800
From:	"Li, Aubrey" <>
To:	"Du, ChangbinX" <>,
	"" <>
Subject: Re: [HELP] How to use ftrace to learn how a function is ivoked?

On 2014/4/3 14:36, Du, ChangbinX wrote:
> Hi, All,
> I have a question for ftrace usage. It is that if I have a function A, then I want to 
> know how function A is ivoked?
> I know ftrace can show me what sub-functions that A called by below steps:
> 	# echo function_graph > current_tracer
>   # echo function_A > set_graph_function
> 	# cat trace
> Then a call stack will show what functions A has called. But sometimes I want to 
> know how A is called. Is there a method to do this? Please help me!

dump_stack(), kprobe, AFAIK.

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