Forcing a core dump

[Mike Stump]

On Thursday, October 2, 2003, at 06:59 AM, Mark Rowe wrote:
> Is there a compiler flag that forces a core dump when a program 
> terminates
> unexpectedly ?  I have a multi-threaded program that sometimes 
> terminates
> unexpectedly with no core file.  If I can force a core file, I can run 
> gdb
> on it.

No.  Feel free to catch all signals, and put a while (1) pause () in 
the handler, and then compile with -Dexit=myexit and define myexit to 
do the same thing is the arg is != 0, then all you have to do is check 
the return statements in main, and do -Dabort=myabort and you'll be set.

When it hangs, gdb attach it, and then see what it was doing and 
where...

This is beyond the scope of this list...