[Bug 51996] aarch64: NtGetContextThread/NtSetContextThread on another thread ignores FPU state due to buggy SIGUSR1 handler

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=51996

--- Comment #4 from Jinoh Kang  ---
> Any chance we would be using sigreturn() directly, though?  On select known
> platforms with stable syscall ABI, of course.

Please disregard my previous comment. Dealing with some unknown sigcontext
extensions such as SVE/SVE2 would be a headache. CONTEXT_INTEGER In
syscall_frame->restore_flags would be a pretty rare case anyway.