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Date:   Wed, 15 Jul 2020 20:37:16 +0430
From:   ahmadkhorrami <ahmadkhorrami@ut.ac.ir>
To:     Linux-trace Users <linux-trace-users@vger.kernel.org>
Subject: Capturing User-Level Function Calls/Returns
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Hi,
What is the most efficient way to capture occurrence of a function 
call/return of a binary program in userspace?
It seems the answer is Uprobes. 1) Am I right?
But Uprobes use "int" instruction which leads to a switch into kernel 
mode. 2) Wouldn't it be better to avoid this transition?
I'm looking forward to your reply and will be happy to read your 
opinions.
Regards.