building JDK for new platform

[Gary Benson]

There's a lot of platform-specific stuff that will still need
adding.  Look in hotspot/src/cpu and hotspot/src/os_cpu -- you
basically need to write everything in their for your platform.

Cheers,
Gary

Robert Pangrazio wrote:
> Well I will look into that. I think that some more detail maybe
> necessary. I am thinking of building for RiscOS. There is a really
> nice project that allows you to compile programs written for linux,
> on a linux machine, to run on a RiscOS machine. I would like to try
> to use this to build Java. I was just wondering if it was a waste
> of time, as I would be expecting the Linux native Java version to
> be used in the build process.
> 
> On 8/15/07, Gary Benson <gbenson at redhat.com> wrote:
> > Hi Robert,
> >
> > I use IcedTea's bootstrap VM and plug replacements.  Build them
> > with:
> >
> >   hg clone http://icedtea.classpath.org/hg/icedtea
> >   cd icedtea
> >   ./configure
> >   make boot plugs
> >
> > Then build the JDK with:
> >
> >   export ALT_BOOTDIR=/path/to/icedtea/bootstrap/jdk1.6.0
> >   export ALT_CLOSED_JDK_IMPORT_PATH=/path/to/icedtea/bootstrap/jdk1.7.0
> >
> > Cheers,
> > Gary
> >
> > Robert Pangrazio wrote:
> > > I noticed that to build JDK 6 or higher you need an existing
> > > Java setup. I was wondering how you go about building the JDK
> > > for a new platform. If i have a cross compilation setup for my
> > > new platform, can I use the build machines native JDK, or do I
> > > have to have a JDK that is native to my new platform. If i have
> > > to have a native JDK to build the JDK how do you build the first
> > > native JDK?
> > >
> > > Thanks
> > > Bob