[Bug target/113312] Update __attribute__((interrupt)) for Intel FRED

[hpa at zytor dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113312

--- Comment #4 from H. Peter Anvin <hpa at zytor dot com> ---
(In reply to H.J. Lu from comment #2)
> (In reply to H. Peter Anvin from comment #1)
> > This is actually a specific use case of the feature requested in bug 103503.
> 
> This covers #1.  Should FRED handler take a pointer to the event info as the
> function argument?

This can be passed in from the assembly stub (normally in %rdi).