• Author
  • alien
    Post count: 1
    #2087 |

    I’ve seen a few other posts mention this, but some of them were quite old so I am reiterating it:

    Is anyone working on such a port already(or other such mainstream’ish general purpose OS for the matter)?

    If so how far is it and when can it be expected to be able to run even simple programs, or on the other hand, if not already started, what would be blocking it at this point?

  • Ivan Godard
    Post count: 689

    A port is begun, but barely. We are still beating the compiler/specializer tool chain into shape, and have started implementing syscalls as outcalls to the host so that apps (such as benchmarks) have a file system to use. Some of those syscalls are native rather than outcalls; an example is the timing/clock facility. The next step down that path is to fill in libc and libc++. We don’t see any issues with that, just a lot of bug-catching.

    Moving the OS from host to native is somewhat separate from this effort to get apps to work. There are three major parts involved: a BIOS, a microkernel, and Linux. However, when you look at it as an implementations the task partitions differently: hardware-integrated system support (primarily memory management – PLB, TLB and its tables, but some spiller) that must be native; I/O (enough native to let drivers work, but the actual devices have to be host-side or a whole new piece of simulator); and the load end of the tool chain (linkers, loader and debuggers).

    The expectation is that by the time the system can run an open-source BIOS and microkernel then a microkernel-based version of Linux (we still lean toward L4) will slide in on top relatively easily.

    As for the timing of all this: as you know, we are a sweat-equity company and most of us are part-time and irregular, so planned schedules are impossible. We are actively seeking engineers who would like to help and earn a piece of the Mill, and have many openings. Interested?

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