[Prabhakar Lad]

Hi,

On Mon, Feb 25, 2013 at 12:54 PM, Prasad Lakshman
<prasad.bl.emb at gmail.com> wrote:
> Hi ,
> I am trying to implement own system call in Linux. Kernel version I
> chose is 3.5.7
>
> I am following the steps from Linux Kernel Development 3rd edition.
> I got two problems with the implementation.
> 1.while trying to modify the code in kernel , there is no entry.S file
> for Intel x86 32 bit architecture. (my be i am missing some thing.)
> 2.while I am compiling user application with gcc I am getting
>
Things have slightly changed in the newer kernel version
you can refer the below links,
https://bbs.archlinux.org/viewtopic.php?id=144772
http://blog.techveda.org/index.php/adding-system-calls-linux-kernel-3-5-x/

Regards,
--Prabhakar Lad
http://in.linkedin.com/pub/prabhakar-lad/19/92b/955

> error: unknown type name ‘helloworld’
>
> my application is as follows
>
> #define __NR_helloworld 367
> __syscall0(long, helloworld)
>
> int main ()
> {
> printf("The helloworld system call is\n";
> helloworld();
> return 0;
> }
>
>
> I looked at Link [blog.163.com] which is given by Wanny but i could
> not find the solution,I could not locate syscall_table_32.s in my
> Linux source.
>
> Please  help me in identifying the entry.S file for Intel x86 32 bit
> architecture in 3.5.7 kernel version sources,where i can make an entry
> for my system call into system call table.
>
> Help me in resolving  error: unknown type name ‘helloworld’ in my application.
>
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