[avr-gcc-list] [Patch, avr] Shrink interrupt vector table down to last used entry

[Oleksandr Redchuk]

2013/2/14 Weddington, Eric <Eric.Weddington@atmel.com>:

> If this "optimization" were put in place, then there is the potential
> that these wrongly-enable interrupts could vector off to some part of the application code,
> start executing it, without ever having a return from interrupt (RETI), and could wreak havoc
> with the rest of the system, and also making debugging such a system that much harder.

> I would have to see evidence that these devices, especially the XMEGAs, which typically
> have more code space, are so constrained that such an optimization is warranted over
> the safety of the overall system.

How about "no-any-interrupt" (and no sei() in code) programs for small
micro like tiny13 or tiny261 ?

Anyway, one must explicitly enable this feature by --shrink-ivt swicth
for shut in foot.
For existing projects will not be any safety problems.

--
wbr,
ReAl