[klibc] -fno-strict-overflow in klibc?

Sam Ravnborg sam at ravnborg.org
Wed May 26 12:59:31 PDT 2010


On Wed, May 26, 2010 at 11:57:31AM -0700, Mike Waychison wrote:
> Toying around with new compilers and old kernels, we noticed that the  
> upstream kernel over that last year or so added -fno-strict-overflow to  
> CFLAGS so that newer compilers would allow overflow detection on pointer  
> arithmetic (and integer arithmetic) to continue working.
>
> Should we be setting this flag for klibc as well?

Obvious question.
How many new warnings does it trigger now?

If zero then yes.
If one or more then no until they are fixed, or at least most are fixed.

	Sam



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