From owner-freebsd-hackers@freebsd.org  Sat Jul 25 08:54:53 2015
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From: HeTak <hetakcoder@gmail.com>
Date: Sat, 25 Jul 2015 13:24:11 +0430
Message-ID: <CAGyHxXWFwU+a-S62DJA==UagFFvFxwpiw0Zmht6O-ppS-ddx+g@mail.gmail.com>
Subject: Kernel Debug Howto
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Hi there,

I have recently started some developments on FreeBSD net section. But I am
kinda new to this field. My base interest is to first understand the
implementation structure via tracing the code and so.

 I have three major questions:
1-  how to debug changes made to FreeBSD kernel?
(You know, till some levels, I can even use uprintf or so, but, for example
inside radix.c (where I wanna understand how a route is checked to be
unique and then inserted to the tree) I can't do such checks..)

2- are there standards there for freebsd kernel developments of which I can
follow so my job gets a bit simplified?
(Any development guides or so?I prospect it to be some differences between
system developments and normal coding, but I don't have an idea on how to
get that).

3- what is the fastest way to apply changes to FreeBSD kernel?
(For now, I just follow the normal build & install kernel & reboot.)

Thanks in advance for your patience in answering an anxious newbie :)

-- HeTak