cannot find entry.S file in Ubuntu kernel
I am very new to the kernel world and I am trying to understand a few things regarding the system calls. I installed latest ubuntu desktop with kernel 2.6.22-14 on a VM workstation. I was looking for the file entry.S in /usr/src/linux-headers-2.6.22-14/arch/i386/kernel as I read it everywhere. But in this I am not able to find the file under any directory. Can anyone please tell me where I can find this file?
Thanks in advance.