Aborting on uncaught exception

[Dave Pacheco]

I'm exploring modifying Node.js to call abort(3c) (dump core) when an uncaught JavaScript exception is thrown.  Importantly, I want to invoke abort() while the function that threw the exception is still on the stack, so that the stack in the core would look like this:

80476f8 v8::internal::Isolate::DoThrow+0x35
8047718 v8::internal::Isolate::Throw+0x1f unknown (SeqAsciiString: 3dd0f805)
8047748 v8::internal::Runtime_Throw+0x3f unknown (FixedArray: 26d2d571)
804776c 0x4040a336 internal (Code: 4040a2c1)
8047780 0x404711f2 foo (4477d23d)
80477c0 0x404290c4 <anonymous> (as startup.processNextTick.process._tickCallback) (26d43271)
80477dc 0x40421bf9 <InternalFrame>
8047818 0x40412c2a <EntryFrame>
8047898 _ZN2v88internalL6InvokeEbNS0_6HandleINS0_10JSFunctionEEENS1_INS0_6ObjectEEEiPS5_Pb+0x100
80478e8 v8::internal::Execution::Call+0xd5
8047958 v8::Function::Call+0xda
80479d8 _ZN4nodeL4TickEv+0xb5
8047a08 ev_invoke_pending+0x63 <EntryFrame>
8047ab8 ev_run+0x857
8047ad8 uv_run+0x1c
8047b68 node::Start+0x158
8047b88 main+0x1b
8047ba4 _start+0x83

It looks like I want to interpose about right here:

https://github.com/v8/v8/blob/master/src/isolate.cc#L1076

And if report_exception is true, I'd call abort(). What's the best way to go about doing this? It looks like I could use the debugger interface, but I want this always on in production, so I don't want to have to run a debugger in order to do it. Would it be reasonable to register a callback with V8 that gets invoked when an exception is thrown?

Thanks,

Dave