Re: Triggering core dump creation

[Sašo Kiselkov]

On 06/15/2012 12:36 PM, Andreas Höschler wrote:
> Hi all,
> 
> I am trying to track down a problem that occurs only every 6 weeks or so 
> (impossible to reproduce at will). I am raising an exception 
> 
>          [NSException raise:NSInternalInconsistencyException format:@"%@", 
> message];
> 
> when the problem occurs. This exception is catched and the message presented 
> in a panel. 
> 
> Is there any way to programmatically cause a core dump instead of raising the 
> exception? I need a back trace to find the cause of the problem.

A common trick I use if I want to dump core when an exception is
triggered is to simply override -raise as follows:

@implementation NSException (CoreDumps)

- (void) raise
{
  abort ();
}

@end

Afterwards, simply enable core dumping if you're on Linux and run your
program:

$ ulimit -c unlimited
$ ./myprog

--
Saso