On Mon, Jul 08, 2013 at 11:48:25AM -0500, Scott Wood wrote:

On 07/03/2013 08:08:18 PM, Kevin Hao wrote:

quoted

On Wed, Jul 03, 2013 at 03:38:27PM -0500, Scott Wood wrote:

quoted

On 07/02/2013 10:00:44 PM, Kevin Hao wrote:

quoted

On Tue, Jul 02, 2013 at 05:39:18PM -0500, Scott Wood wrote:

quoted

How much overhead (space and time) is this really?

The following is the additional sections when relocatable is
enabled for
a p2020rdb board.
  section        size
 .dynsym       000007f0
 .dynstr       00000926
 .dynamic      00000080
 .hash         00000388
 .interp       00000011
 .rela.dyn     00215250

The time for the relocation is about 32ms on a p2020rdb board.

Hmm... more relocations than I expected.  What percentage is this of
the total image size?

The size of vmlinux.bin is about 10M. The percentage of the relocation
section is about 20%. But look on the bright side of thing, all
the relocation
stuff are in init section and should be discarded at runtime. :-)

That doesn't reduce the space it takes up in flash...

Yes. But since we always use a compressed uImage kernel in flash,
the increasing size of the image would shrink to about 500K.

Thanks,
Kevin

-Scott