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SubjectRe: Error Communicating With Module
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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