Help me to build openjdk on my machine

[John Yeary]

I had successfully built a Java 6 build for PPC months ago using Zero. It worked fine. I updated the docs on the wiki based on that success. It was possible, but alas apparently that time has passed 

John

Sent from my iPhone

On Jul 10, 2011, at 16:37, Mike Swingler <swingler at apple.com> wrote:

> On Jul 10, 2011, at 11:27 AM, Damjan Jovanovic wrote:
> 
>> On Sun, Jul 10, 2011 at 12:11 PM, Max Pole <max_pole at gmx.de> wrote:
>> 
>>> Hi,
>>> 
>>> I hope it's the right mailing list for my question...
>>> 
>>> I'm trying to build opendjdk7 (bsd-port) in my PowerPC Mac. I downloaded a right bootstrap VM and got platform-independent code (corba, jaxp, jaxws etc) successfully compiled.
>>> 
>>> Unfortunately I cannot compile hotspot VM because of the following error:
> 
> <snip>
> 
>>> The missing source is there but the complation script seems to be unable to locate it.
>>> Moreover, I found out that the platform-specific code (PPC in my case) is NOT there! The directory
>>> 
>>> /Users/maxim/bsd-port/hotspot/src/cpu
>>> 
>>> doesn't contain any PPC-related code but only those for sparc, x86 and zero. I have no idea what the latter means though...
>> 
>> Zero is basically an easy to port Java interpreter that currently
>> supports, among many others, PowerPC (32- and 64-bit). See
>> http://openjdk.java.net/projects/zero/.
>> 
>>> My Question: Is PPC arch deprecated meanwhile? If not, what's the reason to strip it out from the distribution?
> 
> I don't believe there ever was a PPC port, but what you used was actually an early version of the "zero" architecture support.
> 
>>> Is there any possibility to obtain the PPC code for that VM?
>> 
>> I suspect the version of Hotspot in the BSD port is old, which is why
>> Zero is not compiling.
> 
> Actually, the BSD HotSpot is merged up to the very latest JDK7 HotSpot. I know, because the macosx-port derives from the bsd-port, so that BSD/Mac integration issues at the HotSpot level are handled for us.
> 
> Has anyone actually tried compiling the latest bsd-port with arch=zero on a PPC Mac?
> 
>> Even when you get it to compile, the performance may be poor, as Zero
>> is just an interpreter. The related Shark project should be faster as
>> it uses LLVM's JIT, and it seems to support PowerPC.
>> 
>>> Any help would be highly appreciated. I'm about to contribute to a open-source project related on Java 1.6 but I cannot run that software because Apple discontinued PPC macs, their support and Java development for PPC. So openjdk is my only way to proceed...
>>> 
>>> Info on system I use:
>>> 
>>> Processor: PowerPC G5 2.1 GHz
>>> System: Mac OS X 10.5.8
> 
> Just to set some expectations, the Mac OS X porting project has made a conscious decision to not support Mac OS X 10.5 Leopard (for a variety of API reasons), and therefore will not support PPC. While the bsd-port may be compilable for PPC with Zero and Shark, it's native graphics support will likely remain at the Darwin/X11 level. This may or may not be an issue for your use.
> 
> AFAIK, nobody has come forward to make new builds of the BSD port for PPC/Mac using Zero, since it was fully integrated into the JDK7 mainline. Any volunteers?
> 
> Regards,
> Mike Swingler
> Java Engineering
> Apple Inc.
>