Re: [uml-devel] Regarding getpid

2006-12-12 Thread Jeff Dike
On Tue, Dec 12, 2006 at 06:12:24PM +0800, Krishnappa Abhijith-A21204 wrote: > Ok Thanks. So actually getpid() doesn't cause mode switch. Sure it does. Any system call does. > But is it mandatory to execute getpid()? If yes why That's the way ptrace traditionally works. PTRACE_SYSEMU, which ca

Re: [uml-devel] Regarding getpid

2006-12-12 Thread Krishnappa Abhijith-A21204
nappa Abhijith-A21204 Cc: User-mode Linux Kernel Development Subject: Re: [uml-devel] Regarding getpid On Tue, 12 Dec 2006, Krishnappa Abhijith-A21204 wrote: > "Process system calls must be nullified in the host, and > this is done by converting them into getpid. " >

Re: [uml-devel] Regarding getpid

2006-12-12 Thread Geert Uytterhoeven
On Tue, 12 Dec 2006, Krishnappa Abhijith-A21204 wrote: > "Process system calls must be nullified in the host, and > this is done by converting them into getpid. " > How is system calls are nullified by converting them to getpid() ? Instead of calling the actual system call, it just ca