Re: [Qemu-devel] [PATCH] ppc: Add MacOS VGA driver ROM

[Gerd Hoffmann <kraxel@redhat.com>]

On Di, 2016-08-02 at 15:35 +1000, Benjamin Herrenschmidt wrote:
> On Tue, 2016-08-02 at 07:25 +0200, Gerd Hoffmann wrote:
> > > That's the part we cannot provide unfortunately. There is sadly no
> > > toolchain that can produce a MacOS PEF binary other than hosted in
> > > MacOS itself. In fact I don't think Apple XCode can either, which
> > > leaves us with CodeWarrior (commercial) or MPW (which I think at some
> > > point became free but I didn't find it and it doesn't work on OS X
> > > afaik).
> > 
> > Firmware builds often have specific requirements, such as only working
> > on $arch due to firmware not being cross-buildable (thats why there are
> > the prebuilt binaries in the first place).  So if those makefile rules
> > work only on macos with CodeWarrior installed that is perfectly fine.
> 
> Right though in that case it's not a Makefile, it's a CodeWarrior
> project in .xml form ;-) It is included in the git repo.

Good, that simplifies the makesfile rules to something like:

macosdrivers:
	(cd $submodule: cw-build-tool $args $project.xml)
	cp -v $submodule/$binary ../pc-bios

> CodeWarrior for MacOS X does come with command line versions of the
> tools, I plan to look into doing a Makefile once I've sorted out the
> various arguments for these things at least.

Yes, you do that once, put it into roms/Makefile, and the next time you
just do "make -C roms macosdrivers" instead of sorting out the various
arguments *again*.

Bonus: Any possible contributers will have an easier start too.

cheers,
  Gerd