[RFC] Arm frame unwinding directives.

[Ian Lance Taylor]

Paul Brook <paul@codesourcery.com> writes:

> I'm currently working on implementing EABI compliant exception handling/frame 
> unwinding for arm targets. This involves generating frame unwind tables.

...

> A similar technique is used by ia64 targets.

My understanding is that the ARM EABI frame unwind tables are pretty
much a straight copy of the ia64 stuff.  If so, we should share the
implementation.

If not, how do they differ?

Ian