[LLVMdev] -f[no-]omit-frame-pointer

[Kostya Serebryany]

On Tue, Dec 27, 2011 at 1:30 PM, Rafael Ávila de Espíndola <
rafael.espindola at gmail.com> wrote:

> > What would be the best fix for asan?
> > Force  -mdisable-fp-elim when asan is enabled or document that asan
> > requires -fomit-frame-pointer for better warning messages?
>
> Just messages?


Yes.
Asan unwinds stack on every malloc/free and on failure.
w/o frame pointers the warning message will be less useful, but the ability
to find bugs will not be affected.


> I would suggest documentation.
>

Ok, I'll do that later (if no one else has an opposite opinion).

--kcc


>
> If it is needed by some of the checks then enabling frame pointers by
> default when asan is enabled and rejecting or warning when someone tries
> to use both asan and -fomit-frame-pointer is probably better.
>
> > Thanks!
> >
> > --kcc
> >
>
> Cheers,
> Rafael
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