[U-Boot-Users] [PATCH] MPC8641HPCN u-boot.lds problem with ELDK 4.0
Tolunay Orkun
listmember at orkun.us
Thu Nov 30 23:17:22 CET 2006
Chris Fester wrote:
> Hi all,
>
> I recently have been attempting to get u-boot working on my MPC8641HPCN
> evaulation board (AKA the Argo Navis platform). I faced a problem
> compiling the latest git source with the ELDK 4.0 and getting it to work
> on the board. The processor would run off into the weeds when doing the
> command table relocation step in lib_ppc/board.c:633. After debugging
> with a BDI, some head scratching, and a few google searches, it came
> down to an issue with the linker, which seems to have been a common
> problem in the past for this mail list. Please see the thread at:
> http://sourceware.org/ml/binutils/2005-08/msg00412.html.
I answered the same issue for someone else this week. This issue is
fixed by the patch that went in Aug 31, 2005. As far as I can see, the
change was for all boards in the public tree back then.
http://www.denx.de/cgi-bin/gitweb.cgi?p=u-boot.git;a=commit;h=807d5d7319330e336ab34a5623c5e0d73b87d540
>
> * Fix to linker script for mpc8641hpcn platform to enable a correct
> symbol table with ELDK 4.0 linker.
>
>
> diff --git a/board/mpc8641hpcn/u-boot.lds b/board/mpc8641hpcn/u-boot.lds
> index b34de8e..c2f6727 100644
> --- a/board/mpc8641hpcn/u-boot.lds
> +++ b/board/mpc8641hpcn/u-boot.lds
> @@ -120,7 +120,7 @@ SECTIONS
> _edata = .;
> PROVIDE (edata = .);
>
> - __u_boot_cmd_start = .;
> + __u_boot_cmd_start = ADDR(.u_boot_cmd);
> .u_boot_cmd : { *(.u_boot_cmd) }
> __u_boot_cmd_end = .;
Please that a look at the fix done for other boards (say mpc8560ads).
They add two lines of ". = ." which fixes this and a similar issue with
__start___ex_table symbol. I think it would be better if the issue is
fixed in the same way. (I am not saying your solution is wrong, but this
is more consistent)
Tolunay
PS: Wolfgang, perhaps this should be a FAQ?
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