what is core dump and how to do it

dayalan_cse · 11-02-2006, 01:26 AM

hello,

how can i do core dump for c and c++ programs to debug using gdb. pls help me how can i do core dump?

Thanks & Regards
dayalan

jtshaw · 11-02-2006, 07:00 AM

A core file is a binary file with the state of the world (so to speak) when a program dies. You can force a program to die and generate a core with kill -6 <PID>. You need to make sure your ulimit is setup to allow you to have core files.

You can use gdb to debug a program via a core by by typing "gdb <programexe> <corefile>".

jlliagre · 11-02-2006, 03:06 PM

You can also generate a core file from a living application without killing it with the gcore command.
Gcore is only recently available under Gnu/Linux.

dayalan_cse · 11-03-2006, 12:59 AM

Quote:

Originally Posted by jlliagre

You can also generate a core file from a living application without killing it with the gcore command.
Gcore is only recently available under Gnu/Linux.

hi thank you to every one who responded to me. i am new for the linux your information has helped much.thank you once again.

Thanks & Regards
dayalan