The Way Systemd Handles System Calls Post: 302954251

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Operating Systems Linux The Way Systemd Handles System Calls Post 302954251 by Lost in Cyberia on Saturday 5th of September 2015 09:35:17 PM

09-05-2015

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The Way Systemd Handles System Calls

Hi everyone, I have a question about the process management, and deep level system functionality of system calls between SystemD and SystemV? Does SystemD use the same system calls (fork(), exec(), bind() etc...) as SystemV? or Vice Versa? If they both use the same or very very similar sys calls, do they handle them the same way? If a sys call is made in systemd, is it generally handled the same way on sysv? I know SystemD uses unit files for processes now, do these come into effect with system calls? Or are the differences between SystemV and SystemD more "higher level" than the low kernel level sys calls?

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prof

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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