Compile JRE for PPC 32 bit

[Severin Gehwolf]

On Thu, 2018-01-25 at 17:22 +0100, John Paul Adrian Glaubitz wrote:
> Hi!
> 
> On 01/25/2018 05:11 PM, Volker Simonis wrote:
> > OpenJDK currently doesn't support ppc32 out of the box except maybe
> > with "zero". But "zero" has its own problems as you noticed
> > yourself
> > (interpreter only so probably not really ready for production
> > scenarios) and it is often broken because it is not an Oracle
> > supported platform.
> 
> It's basically supported by me now :-).
> 
> > I've added Adrian on CC who may know if and if yes how jdk8u162
> > should
> > compile for zero.
> 
> OpenJDK-8 definitely builds on PowerPC32. I'm not exactly about the
> additional patches at the moment though. The Debian package currently
> carries these patches:
> 
> > https://sources.debian.org/src/openjdk-8/8u151-b12-1/debian/patches
> > /
> 
> However, Debian has u151. Depending on what got backported in the
> meantime, you might need this patch:
> 
> > http://hg.openjdk.java.net/jdk/hs/rev/137ae24f3b52
> 
> It might also depend on the gcc version whether this patch is needed.

For post-8u161 you'll likely need a JDK 8 backport of this fix for Zero
to continue to build:
https://bugs.openjdk.java.net/browse/JDK-8194739

See:
http://mail.openjdk.java.net/pipermail/jdk8u-dev/2018-January/007187.html

Thanks,
Severin