Re: [PATCH] Put the BUG __FILE__ and __LINE__ info out of line

From: Andi Kleen
Date: Thu Sep 28 2006 - 06:40:53 EST

On Thu, Sep 28, 2006 at 03:30:12AM -0700, Jeremy Fitzhardinge wrote:
> Andi Kleen wrote:
> >But no out of line section. So overall it's smaller, although the cache
> >footprint
> >is 2 bytes larger. But then is 2 bytes larger really an issue? We don't
> >have
> >_that_ many BUGs anyways.
> >
> I think the out of line section is a feature; no point in crufting up
> the icache with BUG gunk, especially since a number of them are on
> fairly hot paths.

It's 10 bytes per BUG.

> >I'll port the x86-64 way over to i386
> It's neat, and it would solve my immediate problem, but I think my way
> is actually better.

Your way will be even bigger because we would need to add
dwarf2 annotation to the out of line code.

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