How do you deal effectively with Linux segmentation errors?
They drive me crazy. There's no line number associated with
them, so the error could be caused anywhere by anything in
the code. I suspect bad pointers are the usual cause, but
fixing them is a real headache and takes so much time!
Is there a good method for fixing segmentation errors,
that is, besides writing perfect code?
I often hear Valgrind and Electric Fence mentioned. A quick Googling found me these:
http://valgrind.org/
http://directory.fsf.org/ElectricFence.html
7. It is easier to write an incorrect program than understand a correct one.
40. There are two ways to write error-free programs; only the third one works.*
Also, try compiling your program with the -g option. Then when you get a segmentation fault, use gdb on the core file. e.g. $ gdb ./myprogram core
If you understand what you're doing, you're not learning anything.
You must learn to work with core files.
core file is the process image at time of recvinig the signal
seg fault.
Thanks for the help. But where do you go to learn
more about core files? I've never worked with them before
and I haven't seen much written about them.
Is there a tutorial of faq somewhere on the internet?
core file is the process image at time of recvinig the signal
seg fault.
Its very easy to look at the debuger manuall and learn how to work with
core files.
