>On Tue, 8 Jul 2014 02:10:37 +0200 >Aleksandar Kuktin <akuk...@gmail.com> wrote: > > >On Mon, 7 Jul 2014 17:41:35 +0000 > >Yoann Padioleau <p...@fb.com> wrote: > > > > Hi, > > > > I was able to cross compile Plan9 from MacOS which is probably quite > > similar to cross compiling from Linux. > > > > The first thing was to compile the plan9 C compilers > > on MacOS. I used https://code.google.com/p/ken-cc/ because this fork > > of the Plan9 C compilers are easier to compile on non-plan9 OSes. > > > > Then I installed plan9port which contained a few utilities that are > > used when compiling the plan9 kernel (/bin/rc, /bin/mk). > > > > [snip] > > Ken-cc may be the missing piece of the puzzle for me, however it is a > little too early to tell. Right now I'm working on compiling the > kernel which SHOULD, theoretically, be easier then userspace since > the kernel is far, far more hermetic than the userspace. > > Anyhow, I'll be sure to post the method for doing it, should I > eventually end up victorious.
Well, I managed to make the kernel and almost everything else I touched compile. No idea yet on whether it will run. But libscribble is giving me a really hard time. There is a bunch of #pragmas about incomplete data structures that the compiler (8c from Kens suite) doesn't understand and those are holding me back. As for the rest, the biggest problem is a bug in Kens compiler from code.google.com. There is a header, a.out.h, which contains a definition/declaration (I always forget what is a definition and what is a declaration) of a structure called Sym that is different in the two header files. As a consequence, the compiler and assembler produce object files whose symbol tables the archiver is unable to read. As a consequence of that, the libraries are useless. The solution to this was to delete the copy in src/libmach/a.out.h, and rebuild everything with the other copy. Since I am building everything on Unix, and am using the Unix shell (bash in my case), I had to rewrite much of the mkfile rules, specifically ones that deal with loops, conditionals and substituting outputs from commands. Because all those rules are simple, this was a trivial task. I also needed to change sed programs embedded all over the place to be understandable to my systems sed. Probably the biggest problem was rewriting several programs from the aux/ directory (/sys/src/cmd/aux/). These are written to be run on Plan 9 and "porting" them to Unix had to be done by hand. Again, since they are for the most part simple, it wasn't much of a chore. It just had to be done. And that wraps up this weeks events in my attempt to compile and run Plan 9. -- Svi moji e-mailovi su kriptografski potpisani. Proverite ih. All of my e-mails are cryptographically signed. Verify them. -- You don't need an AI for a robot uprising. Humans will do just fine.
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