On Fri, 09 May 2014 13:37:04 PDT ron minnich <[email protected]> wrote: > somebody referred me to the discussion. > > Sometimes we found people wanted to build on their existing OS (Linux, > OSX, whatever) in a cross-build way, and, further, didn't want to do > that in a VM, because they had tools they liked. > > github.com/rminnich/NxM is the last snapshot of the Sandia/BL fork, > and it has scripts and instructions to crossbuild it all on Linux. > It's not elegant but it works. At the time, we used Gerrit and Jenkins > for our control and validation. For each commit, gerrit would kick off > a jenkins run, which would do the full build from scratch, boot in > qemu, and run a set of regression tests. Gerrit would -1 the patch if > the jenkins pass did not work. > > Full build, starting from nothing, of tools, libs, bin, kernels, was > about two minutes on Linux. If you added gs into the mix, it was more > like 4 minutes IIRC. Ran fine on amd64.
Seems very slow : ) Full plan9 *native* build of the kernel, libs and bin on a /RapsberryPi/ is about 4 minutes Crossbuilding i386 kernel on it takes about 3 minutes (I haven't tried a full crossbuild). Building the 9pi kernel under 9vx takes about 11 seconds on my MBP @ home. Don't recall the full build time. For comparison, a native Linux kernel build on RPi takes over 10 hours. For another comparison, RPi seems about 16-20 time slower compared to a MBP. > One suggestion I'd like to float here: the LPL is a problem for both > BSD and GPL worlds (see Theo's notes from 2003 on that issue). It > might be useful for new from-scratch software to be released under > 3-clause BSD; or under the Inferno license for that matter. In other > words, if you don't have to use the LPL, use 3-clause BSD instead. One > person has already very kindly allowed us to use their drivers in > Akaros with the LPL replaced with 3-clause BSD. Agree.
