Filling in ARM64 ABI structs

[André Hentschel]

Am 22.08.2017 um 15:48 schrieb Martin Storsjö:
> Hi,
> 
> I've noticed that some of the ABI specific structs for ARM64 are incomplete or missing - namely _JUMP_BUFFER in include/msvcrt/setjmp.h (not yet available) and _CONTEXT (not missing but only has got made-up content so far) and associated CONTEXT_* defines, and structs like RUNTIME_FUNCTION and UNWIND_HISTORY_TABLE in include/winnt.h.
> 
> As far as I know, these structs should be available in the win10 sdk. (MSDN doesn't have them but just says to refer to winnt.h for the CONTEXT struct at least). In order not to accidentally make myself uneligible for contributing code on these matters, I've tried to not look at the sdk.
> 
> Can someone help out with completeing these data structures according to whatever clean-room guidelines are required? When looking at existing code with git blame, they mostly appear as such without any further explanation on how they were derived, so I'm taking the more cautious route here.
> 
> // Martin
> 
> 

Hi,

IANAL, but you should be fine as long as you only study the headers and don't copy&paste...
Sadly I have no idea anymore how I implemented JUMP_BUFFER for ARM, but it's a good thing to have an application which needs it, as it seems we only have tests for amd64
What is also strongly needed is that distributions stop using x18, have you done something in this regard?