RFC: Using per function sections

[Sebastian Huber]

Hello Joel,

what is this for an option?

On 04/11/2013 11:59 PM, Joel Sherrill wrote:
> Hi
>
> After Anthony Green commented how much code space was
> saved by using per function sections, I have been doing some
> experimenting on a few targets.  My impression is:
>
> + Some tests drop > 50% in size
> + Most drop 20-30%
> + Minimum drop is ~10%
> + Even a well tuned size constrained BSP like the lpc23xx_tli800
>     saw 6-9% minimum improvements. At least one test fit into
>     memory which did not before hand.
>
> PowerPC and ARM appear to work great. SPARC/sis resulted in 80
> byte .text sections.
>
> I would like to know if there is general interest in using these
> options across all BSPs where it works.  And investigating those
> which do not.
>


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Sebastian Huber, embedded brains GmbH

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