Omit output section from executable

[Daniel Jacobowitz]

On Wed, Aug 02, 2006 at 10:43:24PM +0200, Udo A. Steinberg wrote:
> 
> Hi all,
> 
> For an OS kernel I have put all CPU-local data in a specific ELF section named
> ".cpulocal". During bootstrap the kernel allocates a memory page for each CPU
> and maps it to the VMA of the ".cpulocal" section.
> 
> I would like the linker to omit the (useless) contents of that section from the
> executable while still maintaining references into the section. I can achieve
> the desired effect by doing an objcopy -R .cpulocal after the final link.
> 
> Any way I could do the same with only a linker script and without the objcopy?

I'm not sure exactly what you want, but if the data is useless, try
making the .cpulocal section "nobits".

-- 
Daniel Jacobowitz
CodeSourcery