JDK 9 fails to build on MIPS

[James Cowgill]

Hi,

On 05/12/16 07:10, Ao Qi wrote:
> Hi James,
> 
> I have the same questions with David. "I am surprised if this is the
> only thing that will prevent you from building on MIPS. And even if you
> do build okay I'm not sure what you can run - zero intepreter?" In
> addition, could I know your build environment and configure parameters?
> I want to do some test.

This was originally for Debian's copy of openjdk-9 with all its
patches. I've done a native compile from the main JDK repository and
after applying my patch and one extra patch from Debian[1], the JDK
builds and seems to work ok on mips (although obviously it's very slow).

I configured it with this:
CC=gcc-5 CXX=g++-5 bash ../configure --enable-debug --enable-headless-only --disable-warnings-as-errors --with-jvm-variants=zero

I expect headless to work as well - I just wanted to reduce the build
time a bit.

[1] https://sources.debian.net/src/openjdk-9/9%7Eb147-1/debian/patches/zero-architectures.diff/

> FYI I am working on OpenJDK 8 MIPS Port [1], and glad to hear that
> someone is also doing work related to MIPS:)
> 
> [1] http://mail.openjdk.java.net/pipermail/porters-dev/2016-May/000544.html

A real MIPS hotspot port would be great for mips, although something
this big has to be in the main upstream repositories before Debian
could use it.

Thanks,
James