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brian_d_foy (44)

brian_d_foy
brian.d.foy@gmail.com
http://www.pair.com/~comdog/

Journal of brian_d_foy (44)

Sunday October 01, 2006

06:47 PM

Anyone use DDD?

[ #31188 ]

Gnu has the Data Display Debugger, or ddd, and I even found an article in English about it. I was going to ignore it for my chapter on debugging in Mastering Perl until I saw that Peter Scott showed it breifly in Perl Debugged.

After much yak shaving last night (fix my FreeBSD routing table so I could cvsup ports so I could compile gcc34 so I could compile ddd), and much online poker playing while the compilation was under way (won one tournament, second in two others, final table in another, and a miserable 48th in the last one, up 15,000 play chips by the end), I got this thing install. With more yak shaving to let my FreeBSD machine display thing on my Powerbook (not sure I had to use xhost last time I did this, odd) because my Intel laptop's monitor flickered a moment then never came back. It isn't fun editing /etc/rc.conf to set the defaultrouter when I can't see the screen. Some of you might really like the challenge, but I think it sucked. Although, punching the screen won't break it any worse. :)

So, does anyone use this? Does anyone happen to have the Mac OS X binary that seems to have disappeared from the net?

Aside from that, what else might you be using as a debugger or IDE? I know about Komodo, EPIC, and Affrus. What else is out there?

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ddd on OSX (Score:1)

by sigzero (5768)

You seem to be able to install it using macports.
Updating FreeBSD ports (Score:1)

by tagg (277)

Now that you've set up cvsup it may not be an issue anymore, but alternatively, check out portsnap [daemonology.net] for updating your ports tree.
Yes, barely. (Score:1)

by jjore (6662)

I've used ddd only very lightly when debugging the C++ code at work and I might have loaded perl into it once or twice. It's one of those things I think I really ought to get goot at but haven't yet.

Either that or Emacs' GUD. Both probably. I ought to learn both. It's all gdb under the hood anyway.
Used it for debugging C (Score:1)

by shild (6323)

I used it to debug C code, although not lately. It is great for displaying structures.
For Perl I prefer the '-d' debugging.
Are you adding debugging of XS modules?
If so I have a neat trick to debug using gdb that I learned from muppet on the perl-xs list.
I haven't tried it with ddd, I should test it someday.
- Re: (Score:2)
  
  by brian_d_foy (44)
  
  I won't cover XS debugging since I'm not covering XS stuff (leaving that to Extending and Embedding Perl), but what's your trick? :)
  - Re: (Score:1)
    
    by shild (6323)
    
    Here are the instructions I got. This has saved me a lot of debugging time.
    
    #################################################
    
    set the env var PASTHRU_INC when compiling your extension:
    
    $ # turn on debugging symbols, turn off optimization (to
    $ # prevent out-of-order execution that makes debugging
    $ # rather confusing)
    $ export PASTHRU_INC='-Wall -g -O0'
    
    then you can run your program in gdb and be taken to the exactly right
    spot