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SubjectRe: [PATCH][RFC] getting rid of stupid loop in BUG()
On Wed, Jul 25, 2007 at 10:19:55AM -0700, Linus Torvalds wrote:
>
>
> On Wed, 25 Jul 2007, Jeremy Fitzhardinge wrote:
> >
> > No, not any more. The file and line info is out of line, in a separate
> > section, indexed by the ud2a's eip.
>
> That's irrelevant - the point is, we need to do the ud2 by hand, since we
> need to control the code generation in order to associate the ud2 with the
> proper file/linenr.
>
> > The main problem with __builtin_trap is that there's no certain way to
> > get the actual ud2a eip (ie, paste an asm label onto it).
>
> Right. Which is why we need to do it as an inline asm.

Who said that we need to populate that section from asm? Define
a static variable in that section inside a block; identifier is
not a problem, obviously.

I'm not saying that it's not revolting, but it's not impossible.
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