That‘s true, but it‘s also important to note that most of the BSD subsystem is actually a shim over Mach. So once your BSD syscall has made it to the kernel, ch

That‘s true, but it‘s also important to note that most of the BSD subsystem is actually a shim over Mach. So once your BSD syscall has made it to the kernel, chances are you‘ll get a mach IPC call from the BSD shim.