On Tue, Mar 5, 2019 at 7:26 PM <valdis.kletnieks@xxxxxx> wrote: > > On Tue, 05 Mar 2019 19:08:20 -0500, Umair Khan said: > > > I was just roaming around the linux source code when I stumbled upon > > this line - https://github.com/torvalds/linux/blob/master/include/linux/syscalls.h#L1200 > > > > May I know what is the use of this system call? > > /* > * Not a real system call, but a placeholder for syscalls which are > * not implemented -- see kernel/sys_ni.c > */ > asmlinkage long sys_ni_syscall(void); > > Well, did you go look at kernel/sys_ni.c like it told you to? Because if you > bothered reading the first 2 dozen lines of that file, you would find: Yes I looked at this file actually. > /* > * Non-implemented system calls get redirected here. > */ > asmlinkage long sys_ni_syscall(void) > { > return -ENOSYS; > } > > Are there any remining questions? I was just wondering why are these system calls not implemented? -Umair _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
