Proposal: zero-assembler port of OpenJDK

Jonathan Springer springer at
Thu Jul 17 08:25:37 PDT 2008

Gary Benson wrote:
> Hi all,
> I'm Gary Benson, an engineer at Red Hat.  Over the past year or so
> I've been working on a port of OpenJDK that uses no assembler and
> therefore can trivially be built on any system.
> The port, known as zero, is presently an interpreter-only port, and
> is known to work on PowerPC (32- and 64-bit), x86-64, IA-64, and
> zSeries.  An LLVM-based JIT, known as Shark, is currently under
> development.  Currently only Linux is supported, but adding support
> for other operating systems is one area in which I'd particularly
> welcome contributions.
> The goal of this project would be to be able to build a TCK-compliant
> OpenJDK of reasonable performance on any platform with no additional
> porting work.

Hi Gary,

I think this is very useful work, and would make a great project.

So this project is intended to include the Shark work?  What kind of
machine customization is required there, is it all internal to LLVM?


Jonathan Springer     |
Reservoir Labs, Inc.  |

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