It wasn’t that long ago (well, okay, it was back in 2010, but anyway), that using the GDB debugger left you with the issue of how to maintain your breakpoints from one debug session to the next. After carefully adding breakpoints, and spending time getting them in just the right place, it was a real headache…
Debugging multi-threaded programs can be really tricky. This particular command is especially helpful if you ever need to diagnose a deadlock.
Did you know that you can log specific output (or even the entire session) from within GDB to a text file?
This isn’t a new feature, but it’s really useful when you’re debugging in eclipse, especially if you’re using the more advance or obscure features in GDB. Basically, when you are debugging any program, there is a way to talk directly to GDB without using the point-and-click interface of Eclipse. It’s called the GDB console. It’s also…
Actually, you can use this technique to debug any kind of console app where debugging on the command line interferes with the program’s output. It’s quick and easy, and unlike attaching to a running process in another shell, it allows you to debug as soon as the program starts, meaning you can catch even those fiddly bugs that only…
More GDB shenanigans today, as kindly pointed out by one of my readers – thank you Laurent! Did you know that as of GDB version 7.5 (Aug 2012), there is a new security feature in place that prevents GDB from looking in “non-trusted” directories for the super-useful .gdbinit file? [For more on the usefulness of…
This post was also published at O’Reilly Programming – you can read it here. I read an interesting article today, called Debugging for Beginners, over at O’Reilly Programming. You all know how much I love GDB (huh? you didn’t? seriously?), so I always like to take a look at different approaches to finding those elusive…
Just because you can. Yeah, I know, why bother when you can use a nice front end like Eclipse, or DDD, or CGDB or blah blah blah. If you just like to use it in its raw form on the command line (which, let’s face it, is the best way), you can pretty-up your GDB…
I was trying to watch a variable in Eclipse today and just could not find how to set it up. No matter what I did the Toggle Watchpoint option remained greyed out. A watchpoint is more fun than a regular breakpoint, because the debugger will stop whenever the variable is changed, even if your program…
How to fix the missing dynamic linker breakpoint function error message.