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Full Discussion: c system call
Top Forums Programming c system call Post 302168778 by rangaswamy on Tuesday 19th of February 2008 12:24:37 PM
Old 02-19-2008
c system call

How the c compiler differentiates the system calls and function calls?
 

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UNIMPLEMENTED(2)					     Linux Programmer's Manual						  UNIMPLEMENTED(2)

NAME
afs_syscall, break, ftime, gtty, lock, mpx, phys, prof, profil, stty, ulimit - unimplemented system calls SYNOPSIS
Unimplemented system calls. DESCRIPTION
These system calls are not implemented in the Linux 2.0 kernel. RETURN VALUE
These system calls always return -1 and set errno to ENOSYS. NOTES
Note that ftime(3), profil(3) and ulimit(3) are implemented as library functions. Some system calls, like ioperm(2), iopl(2), ptrace(2) and vm86(2) only exist on certain architectures. Some system calls, like ipc(2) and {create,init,delete}_module(2) only exist when the Linux kernel was built with support for them. SEE ALSO
obsolete(2) Linux 2.0 1998-06-12 UNIMPLEMENTED(2)
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