[PATCH] D19920: [libunwind][ARM] Improve unwinder stack usage on baremetal targets - part 1

[Jonathan Roelofs via cfe-commits]

jroelofs added a comment.

In http://reviews.llvm.org/D19920#421173, @rmaprath wrote:

> In http://reviews.llvm.org/D19920#421145, @jroelofs wrote:
>
> > Wouldn't this break cross unwinding?
>
>
> I wasn't aware of cross unwinding, I think you are referring to [1]. Thanks for the pointer.
>
> Would it make sense to support a libunwind build that only supports native unwinding? For baremetal (embedded) applications, I don't think cross unwinding (if I understand it correctly) makes a lot of sense.
>
> Thanks!
>
> / Asiri
>
> [1] http://www.nongnu.org/libunwind/man/libunwind(3).html#section_4


Yeah, that's what I'm referring to. I have no idea if it's currently working or not, but *adding* a build mode that only supports native unwinding sounds like a good idea.


http://reviews.llvm.org/D19920