Xok/ExOS: A Real OS

• Xok:

  • Runs on x86
  • Multiplexes disk, memory, network, …

• Default libOS: ExOS

  • “Unix as a library”
  • Runs many unmodified Unix applications
    • csh, perl, gcc, telnet, ftp, ...

• Caveats: no VM paging, no SFI on methods

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