When my application crashes with a segmentation fault I'd like to get a core dump from the system. I do that by configuring before hand
ulimit -c unlimited
I would also like to have an indication in my application logs that a segmentation fault has occured. I do that by using sigaction()
. If I do that however, the signal does not reach its default handling and a core dump is not saved.
How can I have both the system core dump an a log line from my own signal handler at the same time?
Best Answer
SIGSEGV
to call your custom logging function.Here is a sample program using
signal
:The same idea should also work with
sigaction
.Source: How to handle SIGSEGV, but also generate a core dump