How do "normal" developers debug apachemodules?

[Manish Chakravarty <ma...@gmail.com>]

Hi all,

I am using apache 1.3.37, and am trying to write a module for it.

The module has gotten pretty complex. I am using visual studio 2003 to
develop it.
I know of no possible way to debug it. Can someone please give some
pointers/tips?

would gdb on GNU/LInux be a better choice?

-- 
Warm Regards,
Manish Chakravarty
----
Consultant Software Developer
PH: +919886702500
http://manishchaks.net
---

Re: How do "normal" developers debug apachemodules?

["Andrew E. White" <ae...@uark.edu>]

----- Original Message -----
From: Joachim Zobel <jz...@heute-morgen.de>
Date: Tuesday, December 5, 2006 1:59 pm
Subject: Re: How do "normal" developers debug apachemodules?
To: modules-dev@httpd.apache.org

> Am Dienstag, den 05.12.2006, 15:46 +0530 schrieb Manish Chakravarty:
> > The module has gotten pretty complex. I am using visual studio 
> 2003 to
> > develop it.
> > I know of no possible way to debug it. Can someone please give some
> > pointers/tips?
> > 
> > would gdb on GNU/LInux be a better choice?
> 
> I am using gdb to look into the coredumps after segfaults. I am not
> debugging otherwise. If I encounter a bug, I try to improve my logging
> to tell me what is going on. Actually every bug is a chance to improve
> error reporting.
> 
> See also
> http://linuxmafia.com/faq/Kernel/linus-im-a-bastard-speech.html
> 
> Sincerely,
> Joachim
> 
> 
> 

I agree. That's what the debug log level is for.

Andrew

Re: How do "normal" developers debug apachemodules?

[Joachim Zobel <jz...@heute-morgen.de>]

Am Dienstag, den 05.12.2006, 15:46 +0530 schrieb Manish Chakravarty:
> The module has gotten pretty complex. I am using visual studio 2003 to
> develop it.
> I know of no possible way to debug it. Can someone please give some
> pointers/tips?
> 
> would gdb on GNU/LInux be a better choice?

I am using gdb to look into the coredumps after segfaults. I am not
debugging otherwise. If I encounter a bug, I try to improve my logging
to tell me what is going on. Actually every bug is a chance to improve
error reporting.

See also
http://linuxmafia.com/faq/Kernel/linus-im-a-bastard-speech.html

Sincerely,
Joachim

Re: How do "normal" developers debug apachemodules?

["William A. Rowe, Jr." <wr...@rowe-clan.net>]

Nick Kew wrote:
> On Tue, 5 Dec 2006 15:46:53 +0530
> "Manish Chakravarty" <ma...@gmail.com> wrote:
> 
>> I am using apache 1.3.37, and am trying to write a module for it.
>> I know of no possible way to debug it. Can someone please give some
>> pointers/tips?
>>
>> would gdb on GNU/LInux be a better choice?
> 
> gdb is an option.  Chapter 12 of my book describes how to use it:
> that at least is valid even for Apache 1.

So is VC.  The essential thing on every build of apache is to start it
with the -X flag in httpd 1.3 - you will get ONE worker process and no
parent process.  You can now step it, debug it or whatnot.

If you omit -X (or in 2.x, the -DONE_PROCESS flag) you will find yourself
debugging the PARENT process.  In that case, you have to attach to the
pid of the worker process you want to debug.

Re: How do "normal" developers debug apachemodules?

[Nick Kew <ni...@webthing.com>]

On Tue, 5 Dec 2006 15:46:53 +0530
"Manish Chakravarty" <ma...@gmail.com> wrote:

> Hi all,
> 
> I am using apache 1.3.37, and am trying to write a module for it.

Why?  Apache 1.3 has been obsolete for five years!

> The module has gotten pretty complex. I am using visual studio 2003 to
> develop it.

And it was never a windows product in the first place; only a poorly-
performing port of a Unix product.  True cross-platform support started
in Apache 2.0.

> I know of no possible way to debug it. Can someone please give some
> pointers/tips?
> 
> would gdb on GNU/LInux be a better choice?

gdb is an option.  Chapter 12 of my book describes how to use it:
that at least is valid even for Apache 1.

-- 
Nick Kew

Application Development with Apache - the Apache Modules Book
http://www.apachetutor.org/