I had the same question a couple of months back. Eventually I dug it up 
manually.

As a starting point, I can tell you that to trace commands like “ovs-vsctl 
add-port”, start looking at ovs/utilities/ovs-vsctl.c. You will have a function 
called cmd_add_port().


From: Dio Vinra [mailto:sagenhaft.e...@gmail.com]
Sent: Monday, May 09, 2016 12:14 PM
To: Rajasekaran, Monica <monica.rajaseka...@us.fujitsu.com>; 
discuss@openvswitch.org
Subject: Re: Debug OVS

Actually I wanna trace some commands (e.g. ovs-vsctl add-port tap0 tag=100) in 
ovs to find out the code in OVS source code which executes the command, so do 
you know what should I do?

On Monday, 9 May 2016, Rajasekaran, Monica 
<monica.rajaseka...@us.fujitsu.com<mailto:monica.rajaseka...@us.fujitsu.com>> 
wrote:
Hi,

Please follow this link to enable debugging: 
http://ask.xmodulo.com/enable-logging-open-vswitch.html

Once you do that, just start up OVS and follow through.

-Monica

From: discuss 
[mailto:discuss-boun...@openvswitch.org<javascript:_e(%7B%7D,'cvml','discuss-boun...@openvswitch.org');>]
 On Behalf Of Dio Vinra
Sent: Monday, May 09, 2016 10:26 AM
To: 
discuss@openvswitch.org<javascript:_e(%7B%7D,'cvml','discuss@openvswitch.org');>
Subject: [ovs-discuss] Debug OVS

Hi,
I'm new with OVS,can anybody tell me how to debug OVS source code from ubuntu 
terminal?
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