On 5/4/06, David H. Lynch Jr. <dhlii at dlasys.net> wrote: > Everyone has their own debugging style. > > Engineers seem to like hardware debugging tools. I have used some > very fancy debugging hardware, but except for extremely rare instances > it is more work to get setup > and figure out what you are trying to do than inserting some > debugging and rebuilding. > > My idea of debugging hardware is a port with an LED on it I can try > to blink. > > I also only rarely use software debuggers. > > Most of the time when things go off the rails the critical question > for me is Where did things go wrong. Once I know that usually the > problem is obvious and I do nto need dumps of variables or memory. > > I also do development across numerous platforms, OS's and languages. > I need debugging tools and techniques that are broadly portable. A > hardware debugging tool might help with board bringup, but it would be > of little use > for web or perl programming. Investing time and capitol in highly > specialized tools or knowledge requires being narrowly focused to get a > worthwhile payback. > > Regardless, I think debugging is a sort of religious preference. You > need to know who you are and what you need. Other peoples experience is > useful but should not be determinative. >
Yes I am finding this out. It's a long journey! :) Most of the issues I have to deal with are systems that are already up and running in the PPC world and I come in afterwords to clean up. So for example, right now I think I have a DMA problem that is crashing my PPC and rebooting the system. To be sure, I would love to step over a few instructions and slow the world down a bit. That's why I was going to setup kgdb or something like that. Thanks. -stv > Steve Iribarne (GMail) wrote: > > Hello. > > > > This is more a general question to see what others do out here. I am > > begining to get sick of printk debugging. I work on two different PPC > > boards. An 860 and 8260. > > > > I want to get some feedback on the best kernel debugger to use. I > > have been looking at three. > > > > 1. kgdb > > 2. kdb > > 3. UML > > > > I am leaning towards kgdb, but before I jump in I thought I'd put this > > out to the best group I could think of linuxppc. Because I am sure > > most of you are using something! :) > > > > Thanks. > > > > -stv > > _______________________________________________ > > Linuxppc-embedded mailing list > > Linuxppc-embedded at ozlabs.org > > https://ozlabs.org/mailman/listinfo/linuxppc-embedded > > > > > -- > Dave Lynch DLA Systems > Software Development: Embedded Linux > 717.627.3770 dhlii at dlasys.net http://www.dlasys.net > fax: 1.253.369.9244 Cell: 1.717.587.7774 > Over 25 years' experience in platforms, languages, and technologies too > numerous to list. > >
