Hi all, there is a lot of code in sys/compat and changes in the kernel API tend to require changes in this code too. I would like to know which emulations are actually in use, what the status of emulation is (both in terms of stability and feature set) and based on that, whether some of them shouldn't rest in the Attic.
As far as I can tell we have emulation code for: Darwin (no GUI, doesn't to have been updated in the last 5 years) FreeBSD (does it even handle FreeBSD 4?) IRIX Linux OSF1 SunOS/Solaris SVR3 SVR4 Ultrix Windows/PECOFF (hasn't this been considered dead quite a while ago?) I don't think we need to discuss keeping Linux. I also don't count NDIS or NetBSD32 in this area. For the rest, I would find the following information highly useful to evaluate the maintainance cost and ensure future support: (1) Can the emulation run real world application and which? (2) If the emulation is considered experimental only: What progress has been made in the recent time frame (e.g. this decade) on getting it to a useful and stable state? Is this likely to change? (3) How can this emulation be tested? Where can reference binaries be obtained? Has someone done the work to integrate them with ATF or other scripted test frame works? (4) Is the emulation in use? Joerg
