How to enable program to dump core on linux?

Question

I want the program to dump core on crash on Linux for debugging purpose. How do I enable this feature - does this require any changes in the program ?

Answer 1

You can either enable it for yourself by doing:

ulimit -c unlimited

If you want this to be persistent put it in ~/.profile

Alterantively, you can enable core dumps for all users on the system put the following line in /etc/sercurity/limits.conf (at least on ubuntu):

*   0  core    -1

Answer 2

Whether generate core dump or not is controlled by the shell

If you use bash.

ulimit -c unlimited