Re: Error Communicating With Module

[Brian Gerst <bgerst@didntduck.org>]

Ben Rush wrote:
> 
>         Hello, first of all I must tell you that I do not belong to this
> mailing list as of yet, so, please respond to me via brush@cse.unl.edu.
> Thank you very much in advance!
> 
>         My problem is as follows:
> 
>         I have added a variable named bens_variable to ksyms.c as follows:
> 
>         extern int bens_variable=10;
> 
>         I have then exported the variable in ksyms.c as follows:
> 
>         EXPORT_SYMBOL(bens_variable);
> 
>         I then recompiled the kernel as bzImage and everything went
> perfectly fine. I then wrote a module for that particular kernel which
> is simple and looks as follows:
> 
>         #define MODULE
>         #define __KERNEL__
>         #include <linux/module.h>
> 
>         int init_module(void){
>                 printk(bens_variable);
>                 return 0;
>         }
> 
>         void cleanup_module(void){
>                 printk("<1>Module Unloaded\n");
>         }
> 
>         But, of course, whenever I try and compile the module to load it
> using gcc it tells me that bens_variable is undefined - which makes sense,
> however I don't see how I can compile this without typing in
> 
>         extern int bens_variable;
> 
>         again. How do I get my module to compile and print out the value
> of bens_variable as defined within ksyms.c?

Turn module versioning off.

--

				Brian Gerst
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