Re: [PATCH 0/1] MR6348: ntdll: Match the new ARM64 KiUserExceptionDispatcher stack layout.

[Jinoh Kang (＠iamahuman)]

Jinoh Kang (@iamahuman) commented about dlls/ntdll/unix/signal_arm64.c:
> +/***********************************************************************
> -
> -
>       context_init_empty_xstate
> -
> -
> -
> - Initializes a context's CONTEXT_EX structure to point to an empty xstate buffer
> - */
>
> +static inline void context_init_empty_xstate( CONTEXT *context, void *xstate_buffer )
> +{
> - CONTEXT_EX *xctx;
> -
> - xctx = (CONTEXT_EX *)(context + 1);
> - xctx->Legacy.Length = sizeof(CONTEXT);
> - xctx->Legacy.Offset = -(LONG)sizeof(CONTEXT);
> - xctx->XState.Length = 0;
> - xctx->XState.Offset = (BYTE *)xstate_buffer - (BYTE *)xctx;
> - xctx->All.Length = sizeof(CONTEXT);

Usually, `All` should span the entire context buffer, including the `CONTEXT_EX` header:

```suggestion:-0+0
    xctx->All.Length = (BYTE *)xstate_buffer - (BYTE *)context;
```

If this is not the case for ARM64 kiUserExceptionDispatcher, please add a comment here.