On Thu, 16 Feb 2023 at 19:39, David Woodhouse <dw...@infradead.org> wrote: > > On Thu, 2023-02-16 at 09:29 -1000, Richard Henderson wrote: > > On 2/16/23 09:02, David Woodhouse wrote: > > > It wouldn't be beyond the wit of man to extend qemu-user to support the > > > similar personality variations for SCO/Solaris/etc. using that as a > > > guide. > > > > Not beyond wit but perhaps beyond patience. > > > > It would certainly be possible to emulate the "easy middle" of one POSIX > > guest on a > > different POSIX host. But the dusty corners are going to get in the way, > > where we > > currently rely on guest and host having identical semantics, and pass the > > system call > > through to the host. > > > > It's a big job. > > True, but the existing iBCS / linux-abi kernel patches should highlight > a lot of those dusty corners.
linux-user is pretty low on maintenance effort as it is; I just don't think there's any likelihood of anybody with the time and interest in doing Solaris-on-Linux emulation showing up to do the work, especially given that our user-mode infra pretty heavily assumes same-host-same-guest-OS. thanks -- PMM
