Throw stack trace from program kill

[Paul Backus]

On Sunday, 16 January 2022 at 18:22:04 UTC, Steven Schveighoffer 
wrote:
>
> Does this work normally? The memory error handler for Linux 
> jumps through a lot of hoops to be able to throw an error from 
> a signal handler. See 
> https://github.com/dlang/druntime/blob/master/src/etc/linux/memoryerror.d

It worked when I tested it, but I'm not sure how reliable it is. 
A more conservative implementation would be something like

```d
extern(C) void handleCtrlC(int)
{
	import core.stdc.stdlib: exit;
	import std.stdio: writeln;

	try throw new Exception("Killed by CTRL+C");
	catch (Exception e)
	{
		writeln(e.message);
		writeln(e.info);
		exit(1);
	}
}
```