[LLVMdev] unwind's permanent residence

[Jonathan Roelofs]

On 1/30/15 2:03 PM, Nico Weber wrote:
> On Fri, Jan 30, 2015 at 12:37 PM, Nick Kledzik <kledzik at apple.com
> <mailto:kledzik at apple.com>> wrote:
>
>     I thought the ARM EHABI added a twist to this because it created
>     some upward dependency from the unwinder to libc++abi.
ARM EHABI does have this upward dependency on the private type-infos for 
matching catch descriptors. Our implementation of EHABI doesn't really 
implement this part of the spec (See ARM EHABI, section #9.2 [1]). IIRC, 
we get away with that because clang/llvm doesn't code that needs them. 
(yet?)


Jon
>
>     Other than that, I don’t have any strong feeling where it lives.
>
>
> +1 to this. If you don't break the EHABI unwinder while moving things
> around, I'm happy.
>
> +Dan, he probably has an opinion on this topic.
>
>
>     -Nick

[1]: 
http://infocenter.arm.com/help/topic/com.arm.doc.ihi0038a/IHI0038A_ehabi.pdf

-- 
Jon Roelofs
jonathan at codesourcery.com
CodeSourcery / Mentor Embedded