IBT/BTI instructions and D compilers

[Brian Callahan]

On Monday, 10 July 2023 at 12:46:57 UTC, Ernesto Castellotti 
wrote:
> On Monday, 10 July 2023 at 11:24:37 UTC, Brian Callahan wrote:
>> Hi all (but probably mostly Walter) --
>>
>> OpenBSD has moved to an all-BTI world. Binaries produced by 
>> DMD and LDC no longer work because of this. If other OSes make 
>> this move, this problem will be further compounded. Is there 
>> any thought about enabling IBT/BTI instructions in DMD and LDC?
>>
>> Thanks.
>
> BTI should work on GCC D Compiler (GDC) with 
> -branch-protection=bti, LDC as far as I know lacks flag support 
> but it should be very easy to implement because LLVM supports 
> BTI.
> Regarding DMD I think it's very complex because probably the 
> backend doesn't support it.

AFAIK, it does work on GDC.