Re: problem with <asm/semaphore.h>

[Robert Hancock <hancockr@shaw.ca>]

liangbowen wrote:
> Hi
>
> I compiled the following code with gcc under FC2 :
>
> #include <asm/semaphore.h>
> main()
> {
>     struct semaphore sum;
>
> }
>
> It doesn't compile, saying "storage size of `sem'
> isn't known".
>
> and I looked inside asm/semaphore.h, I saw:
> #ifndef I386_SEMAPHORE_H
> #define I386_SEMAPHORE_H
>
> #include <linux/linkage.h>
>
> #endif
>
> Did I missed something? Please guide me how to fix it.
>
> Sincerely

You're trying to use a kernel data structure in a user-space program. 
Don't. The definitions in that header are inside #ifdef __KERNEL__ and 
so the provided userspace headers remove that part.

--
Robert Hancock      Saskatoon, SK, Canada
To email, remove "nospam" from hancockr@nospamshaw.ca
Home Page: http://www.roberthancock.com/

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