PowerPC build ???

[Gary Benson]

Mark Wielaard wrote:
> On Wed, 2010-11-24 at 20:39 -0600, kevin diggs wrote:
> > This question is a little ... weird ... but ...
> > 
> > Is the thought of trying to build your sdk with gcj ... heresy
> > (sp?).  If not please give me ... your thought as to whether
> > it has any chance of working. I would think that if it is for
> > compiles and the like ...  it might work ...
> 
> Not weird at all! This is exactly what the IcedTea project set out
> to do. Make OpenJDK bootstrap using only free tools. Since GCJ is
> the main free java implementation already available on GNU/Linux
> that is what it has used. http://icedtea.classpath.org/
...
> There are multiple ways towards getting a powerpc port. One is using
> the Zero interpreter, which has (almost) zero architecture specific
> (assembly) code. Another is using Shark, which uses LLVM to generate
> code. Both of these extend the Hotspot runtime.
> http://icedtea.classpath.org/wiki/ZeroSharkFaq

If you do try Shark, you'll need to build a patched LLVM (sadly, LLVM
has been broken on PowerPC for some time).  There are patches for the
various versions here:

  http://icedtea.classpath.org/bugzilla/show_bug.cgi?id=399

Once you've applied the patch, build LLVM with:

  ./configure --with-pic --enable-pic
  make

Then, download IcedTea6, and build it like this:

  LLVM_CONFIG=/path/to/llvm/build/Release/bin/llvm-config ./configure --enable-shark
  make

And after some compiling you should have a copy of OpenJDK :)

Join #openjdk on OFTC if you need help, there's some of us there most
times.

Cheers,
Gary

--
http://gbenson.net/