Hi Robert, Thank you very much for your help. It really helped me. When a say groups a mean classes like File Structure, Process Related and etc. But I already got what I needed... Once again Thank you very much. Best Regards, Rodrigo Ramos http://www.triforsec.com.br On Sat, 2005-01-29 at 14:47, Robert Love wrote: > On Sat, 2005-01-29 at 10:53 -0300, Rodrigo Ramos wrote: > > > I would like to know how many groups of system calls are there at Linux > > 2.4 and 2.6? Where can I find these informations in the Kernel? > > I don't know what you mean by groups (a nonempty set G with binary > operation * s.t. G is associativity, there exists e in G s.t. e*a=a*e=a, > and there exists i in G s.t. i*b=b*i=e?). > > System calls are implemented per-architecture. You can see the list at > the bottom of arch/i386/kernel/entry.S. There is about 290. > > System calls are prefixed by "sys_". Thus, read(2) is implemented in > the kernel as sys_read(). It, for example, can be found in > fs/read_write.c. > > Hope this helps. > > Robert Love > > > >