[U-Boot] [PATCH 1/2] RFC: create u-boot-common.lds

Mike Frysinger vapier at gentoo.org
Mon Feb 6 05:27:51 CET 2012


On Sunday 05 February 2012 22:43:33 Graeme Russ wrote:
> On Mon, Feb 6, 2012 at 2:24 PM, Mike Frysinger wrote:
> > it isn't just that.  i don't think a single u-boot.lds for every arch is
> > feasible.  the kernel method allows all the common pieces to be in a
> > common header, and then the arches to expand the specific pieces in the
> > specific order.
> 
> I can't say I'm a fan of the 'common bits' approach - It really does reduce
> the readability of the linker script IMHO. It took me long enough to deal
> with the fact that the lds file is pre-processed for TEXT_BASE ;)

yes, it does make the linker scripts a bit more opaque, but since each arch is 
doing something unique, it's fairly hard to merge them into a single file.  the 
Linux approach represents what we can do in the real world -- get beyond 
board-specific linker scripts and to one linker script per arch.  then the 
vmlinux.lds.h merges a lot of the stuff that can be shared between arches.

i've unified all the board/SoC linker scripts for Blackfin and now there is just 
one -- arch/blackfin/cpu/u-boot.lds.
-mike
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