Re:Mkfile(8) is severely syscall limited on OS X
by Someone on Sunday February 12, 2017 @12:07PM
(#13629247)
"the OSF's mkLinux, which is apparently a predecessor of Mac OS."
Apple worked on MkLinux, but it isn't technically a predecessor to Mac OS X. The two do not share a single line of code; if they did, Apple would have to license Mac OS under the GPL.
XNU, the Mac OS kernel (https://en.wikipedia.org/wiki/XNU) isn't a real microkernel; the functionality of a microkernel is there, but quite a bit of code was added that, in a true microkernel, would live in userspace.
Apple worked on MkLinux, but it isn't technically a predecessor to Mac OS X. The two do not share a single line of code; if they did, Apple would have to license Mac OS under the GPL.
XNU, the Mac OS kernel (https://en.wikipedia.org/wiki/XNU) isn't a real microkernel; the functionality of a microkernel is there, but quite a bit of code was added that, in a true microkernel, would live in userspace.