Thread (5 messages) 5 messages, 5 authors, 2011-09-09

adding preprocessor defines in module makefiles

From: Mulyadi Santosa <hidden>
Date: 2011-09-08 15:49:19

Hi :)

On Thu, Sep 8, 2011 at 21:29, Christopher Harvey [off-list ref] wrote:
Hi,

I'm trying to build a kernel module for fun, and I can't figure out a
clean way to add preprocessor defines that correspond to Kconfig values.
I'm trying to set CONFIG_SND_DEBUG specifically. My module has only one
file, and I've tried adding #define CONFIG_SND_DEBUG as the first line
in the .c file, but now I'm getting the following warning:
WARNING: "__snd_printk" [/home/chris/snd/snd-foo.ko] undefined!

Without looking at your modules' course, I think that's due to you
were using unexported symbol (in this case, kernel function)

-- 
regards,

Mulyadi Santosa
Freelance Linux trainer and consultant

blog: the-hydra.blogspot.com
training: mulyaditraining.blogspot.com
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