Re: [PATCH 2/3] FRV: Permit __do_IRQ() to be dispensed with

[Daniel Walker]

On Sat, 2006-09-09 at 07:12 +0200, Ingo Molnar wrote:

> The real solution would be to use gcc -ffunction-sections plus ld 
> --gc-sections to automatically get rid of unused global functions, at 
> link time. I'm wondering how hard it would be to enhance kbuild to do 
> that - x86_64 already uses -ffunction-sections (if CONFIG_REORDER), so 
> the big question is how usable is ld --gc-sections. Such a feature would 
> be quite important for embedded systems (and for RAM footprint in 
> general) as it would save a significant amount of .text and .data.

A patch to do this was submitted already by Marcelo Tosatti ..

http://lkml.org/lkml/2006/6/4/169

Daniel

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