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From "Weldon Washburn" <weldon...@gmail.com>
Subject Re: SableVM and Harmony Class library
Date Wed, 29 Mar 2006 20:22:40 GMT
On 3/29/06, Enrico Migliore <enrico.migliore@fatti.com> wrote:
> Hi all,
>
> I'm reading the documentation above and, at first glance, it seems to me
> that interfacing the SableVM to the Harmony Class Library is a task that
> involves the following steps:
>
> step 1
> ------
> The SableVM /has to/ implement the VM interface, in order for the
> Harmony Class Library to "find" the entry points of a certain number of
> native functions. The entry points are documented here:
>
> http://svn.apache.org/viewcvs.cgi/*checkout*/incubator/harmony/enhanced/classlib/trunk/doc/vm_doc/html/group__VMInterface.html
>
>
> step 2
> ------
> The SableVM has to implement a Java interface, which means that is /has
> to/ implement in C a small set of Java classes, documented in the
> following link:
>
> http://svn.apache.org/viewcvs.cgi/*checkout*/incubator/harmony/enhanced/classlib/trunk/doc/kernel_doc/html/index.html#KernelJavaClasses
>

Perhaps you have already found the empty java stubs at:
modules/kernel/src/main/java/java/lang.  To get an idea how much of
the kernel class code need to be written in C vs. Java, take a look at
the filled in kernel classes I did for "hello world" on JCMEVM.  You
can find it on JIRA at HARMONY-192.  Note that I wrote almost zero C
code.  Most of the mods were in Java.

>
> step 3
> ------
> The SableVM, in terms of native functions, /should/ call only the native
> functions of the port layer, used by the Harmony Class Library:
>
> http://svn.apache.org/viewcvs.cgi/*checkout*/incubator/harmony/enhanced/classlib/trunk/doc/vm_doc/html/group__Port.html#CreatePortLib
>
>
> Comments are welcome :-)
>
> Enrico
>
>
>
>
>
>


--
Weldon Washburn
Intel Middleware Products Division

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