How is your program supposed to know that you have a syscall with that name ??......Did you defined the _syscalln(....) macro correctly in your program ? ...See adding a system call chapter from the book UKL.
Hope that helps
On 7/31/07, Greg KH <greg@xxxxxxxxx> wrote:
On Tue, Jul 31, 2007 at 02:08:55PM -0400, Jug Venkatesh wrote:
> Hi,
>
> I am writing new system calls for a security project
Um, you might want to stop right there :)
Are you _sure_ you need a new system call?
> , and I was wondering if
> there is any way to specify whether they will be accessible from user space
> or kernel space. Basically, I am writing a monitor that writes to a buffer,
> and I would like to be able to use this both in the programs I write
> (running in user space) as well as in kernel space. I have successfully used
> this syscall in kernel space, but whenever I try to use it in a C program, I
> get a compile error that says "Undefined reference ...".
Just use the proper syscall macro from userspace.
good luck,
greg k-h
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