setting distinct core file names

[Konstantin Belousov]

On Tue, Nov 27, 2018 at 06:27:59PM +0100, Willem Jan Withagen wrote:
> Hi,
> 
> Looking at core(5) and sysctl it looks like these are system wide 
> settings....
> 
> Is there a possibility that a program can set its own corefile name (and 
> path?)
> 
> During parallel testing I'm running into these scripts that generate 
> cores, but they end up all in the same location. But it would be nice if 
> I could one way or another determine which file came from what script.
> 
> But for that I would need to be able to set something like
> 	%N."script".core
> as the core name. I could then put that in then ENV of the script and
> the program would pick it up and set its own corefile name.
> 
> Possible??
No.

Do not expect any proposal that requires kernel to read user mode
environment variable to work.