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Re: Unresolved symbol during insmod

Saifuddin (saif@xxxxxxxxxxxxxx) wrote:
> > 
> > The command that i used to compile the module was:
> > 
> > ---snip---
> > gcc -Wall -DMODULE -D__KERNEL__ -DLINUX -c mod.c
> > -I/lib/modules/`uname -r`/build/include/
> > ---snap---
> 
> 	Try using -O2 while compiling. It should solve your problem.....

I must be wrong, but why -O2 will solve his unresolved symbol problem ?

I can read this in gcc manual :
-O2 Optimize even more.  GCC performs nearly all supported optimizations
    that do not involve a space-speed tradeoff.  The compiler does not
    perform loop unrolling or function inlining when you specify -O2.  As
    compared to -O, this option increases both compilation time and the
    performance of the generated code.
	
I would be happy to know the reason if this flag solve his problem.

-- 
Regards

Christophe 

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