Re: PPC port of PUPA

[Marco Gerards]

"Yoshinori K. Okuji" <address@hidden> writes:

> > What really bothers me is conf/*.rmk.  Open Firmware can load ELF
> > files so it is not required to install PUPA on a bootsector.  To me
> > it seems that the current build scripts are pc only and has no
> > support for such situations.
> 
> It *has* support. That's why i386-pc.rmk exists.

I just meant that it is quite pc specific.  The only way I could build
it was by adding it to bin_UTILITIES.  I didn't find anything generic
for this.

> You need to prepare powerpc-apple.rmk or something similar. You can copy 
> and modify most of the parts from i386-pc.rmk, but you have to make 
> your own rule for the bootstrap. This part cannot be shared among 
> various architectures, regardless of what build tool is used.

Ok.

> If you want a completely different target (e.g. pkgdata_OBJECTS), feel 
> free to extend genmk.rb. It is quite small and trivial. But if you are 
> not familiar with Ruby, I can help you.

I'm not familiar with ruby but I can try to do this.

> You don't have to care about the fact that PUPA must be installed into a 
> boot sector on i386-pc, because this is done by another script anyway. 
> 
> > I think I've also found a bug while crosscompiling.  I used
> > "./configure --host=powerpc-elf", but this didn't work.  After this
> > small change it did:
> 
> You should specify the build system as well when cross-compiling. I 
> think this is documented in somewhere, but I don't remember very well. 
> Maybe in the autotool book?

Right, I always forget --build.

> > I hope to have something working really soon.  Would you like small
> > patches every time or one huge patch? :)
> 
> Small ones are always much better. A large patch is quite difficult to 
> understand.

Ok.

> > Is there anything I should know about the ppc port or Open Firmware?
> > (Does someone know about some nasty bugs or where to find
> > documentation?  It seems there is no free documentation available
> > :().
> 
> There are many bugs, of course. I think you can get a lot of information 
> from yaboot. I have seen a list of bugs in all Macintosh products 
> before.

Where did you see that list of bugs?  It would be really useful to me.

Thanks,
Marco