FORTIFY_SOURCE for the kernel

Dimi Paun dimi at
Mon Jan 30 01:32:00 UTC 2006

On Sun, 2006-01-29 at 19:39 -0500, Alan Cox wrote:
> Individually each -O2 performs better than -Os, cumulatively the
> results are often quite different. You still need to get some careful
> tuning in - eg I build gnome -Os but build the gdk pixbuf libraries
> -O2 because they are so performance critical and small

Wouldn't it then make more sense to specify in the source the
optimization strategy to use? Maybe through a compiler #pragma, 
as an override for the overall strategy set at the file level. 

Then we could mark the small and performance critical parts 
as such, and turn the default file level strategy to -Os.

Dimi Paun <dimi at>
Lattica, Inc.

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