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SubjectRe: Definition of BUG on x86
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


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