Re: Definition of BUG on x86

[Jeremy Fitzhardinge <jeremy@goop.org>]

Ingo Molnar wrote:
> Well, the important question is thatGCC will optimize out 
> whatever comes after the __builtin_trap(), right? To guarantee 
> an assert we can do something like:
>
>  	__builtin_trap();
> 	panic("should never get here");
>
> to guarantee a message. (But realistically GCC will at most 
> generate a build error.)
>   

Ah, right, I remember the problem.  There's no guaranteed way of getting 
the address of the ud2a instruction __builtin_trap generates to put it 
into the bug table.

    J