debug in PBL

[Sascha Hauer]

On Tue, Mar 05, 2013 at 07:52:28PM +0400, Alexander Shiyan wrote:
> Hello All.
> 
> I tried to compile latest bb.
> pcm038 + pbl + debug level 7
> 
> Compilation failed with following error:
>   LD      arch/arm/pbl/zbarebox
> arch/arm/mach-imx/built-in-pbl.o: In function `imx_nand_load_image':
> /home/git/bb-mar05/arch/arm/mach-imx/external-nand-boot.c:232: undefined reference to `printf'
> 
> How we should handle debug messages in PBL in this case?

Until recently the debug macro was defined empty, now it expands to
printf and only compiled away when the debug level is lower. It seems
we have to either drop the debug() calls in the pbl or add an empty
printf implementation.

Sascha

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