Port to HP Itanium OpenVMS (original) (raw)
Volker Simonis volker.simonis at gmail.com
Tue Apr 24 08:35:22 UTC 2012
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Hi Josef,
first of all, the right mailing list for your question would be porters-dev at openjdk.java.net (I've redirected this mail to the new list )
Porting to OpenVMS Itanium would be particularly hard, because it involves two steps:
- porting to a new processor architecture (IA64)
- porting to a new operating system
For the first step (the Itanium port) you could try to Zero port which is part of the OpenJDK 7 (http://openjdk.java.net/projects/zero/, http://icedtea.classpath.org/wiki/ZeroSharkFaq). But you should be aware of the following facts:
- as far as I know, Zero is currently unmaintained so it may be already difficult to even compile/build it
- Zero is an "interpreter only" port so the performance may be not what you expect
After you got the Zero port running on Linux/IA64 you could start with the OS port to OpenVMS.
And bear in mind, creating a production-ready OpenJDK port to a new architecture/platform is a multi man-year project which requires deep assembler and system programming knowledge.
Regards, Volker
http://icedtea.classpath.org/wiki/ZeroSharkFaq On Mon, Apr 23, 2012 at 11:16 PM, Josef Stadelmann <stadelma at datazug.ch> wrote:
Hi all,
I am absolute new on OpenJDK forum. Intention: start a port to OpenVMS Itanium Question: which project has to be ported first, given that OpenVMS has a JDK 1.6.005 but does not have JDK 1.7.0* Reason: It is unclear since Months, what HP's JAVA OpenVMS Roadmap will be. But we need to know where we have to go. Fact: Annotaions like @Requestwrapper or @Responsewrapper or @Addressing, used in Web Service Java Code i.e. Apache Axis2/JAXWS support, are having demand on JDK 7.0 / 8.0 which is not available for HP OpenVMS. Hence we can use Annotations only very limitted. Question 1: Where shall I start reading on OpenJDK? Question 2: Which OpenJDK project needs to be ported first to get on OpenVMS $ JAVA.EXE running? (i.e. executing i.e. older byte code) Any hints and redirections to the proper group / project / mailing list is very welcome. Josef.Stadelmann @axa-winterthur.ch
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