linux system calls

 

a couple of times discussions have touched on assembler.

the link below describes the process of making a system

call via glibc with thanks to the eax register:

 

http://www-128.ibm.com/developerworks/linux/library/l-system-calls/?ca=dgr-lnxw07LinuxSCI 

 

the above introduces a section explaining how we can add

our own system calls.

 

Assembler is not required, just that the explanation is

pretty tight to the machine. The work is done in C code.