[PATCH]: linux-sparc build fixes (original) (raw)

David Holmes david.holmes at oracle.com
Mon May 29 08:52:14 UTC 2017

On 29/05/2017 6:13 PM, John Paul Adrian Glaubitz wrote:

On Mon, May 29, 2017 at 12:17:13PM +1000, David Holmes wrote:

Hi Adrian, Hi!

cc'ing hotspot-dev and bcc'ing build-dev as these are not issues with the build files, but hotspot sources. Thanks. First, than you for taking the time and effort to contribute to OpenJDK. However ... You're welcome. The status of linux-sparc as a port in OpenJDK 9 (or 8u) is unclear. As you have found those bits have bit-rotted as it is not a supported Oracle JDK platform, and no-one else seems to have cared until now. Your patches may be acceptable, but we have no way to validate them. That's surprising because depending on where your office is, it may just be a matter of walking down an aisle and knocking on a colleague's door to get access to the necessary test setup given the fact that Oracle is officially shipping and supporting Linux for SPARC [1,2].

That doesn't necessarily translate into the OpenJDK or Oracle JDK supporting the Linux-sparc platform. It was previously supported in JFK 7 and early 8 IIRC but is no longer provided in 8u and is not a platform supported in 9.

And the very next push may break things again. Or indeed once the hotspot issues are resolved you may find issues on the JDK library side. Well, I'm not so sure. openjdk-9 did build in the past (b88), so I don't think the code is completely bit-rotten [3].

Sure it built in the past but b88 was some time ago and as I said once you get past the hotspot build problem you may find other problems.

The process to get them into JDK 9 now is somewhat more difficult given where we are in the JDK 9 release. Even for minimal build fixes like these?

Yes. The bar is high for any changes at the moment:

http://openjdk.java.net/projects/jdk9/rdp-2

But without a commitment from some part of the community to maintain this port it may be better as something that is maintained downstream. I actually expect the Linux SPARC port to be picked up by Oracle themselves in the near future. I can't really imagine that Oracle would not be willing to support on of their one major software products on one of their major platforms.

I really couldn't say.

Cheers, David

Thanks, Adrian

[1] http://www.oracle.com/technetwork/server-storage/linux/downloads/oracle-linux-sparc-3665558.html [2] https://oss.oracle.com/projects/linux-sparc/ [3] https://buildd.debian.org/status/fetch.php?pkg=openjdk-9&arch=sparc64&ver=9%7Eb88-1&stamp=1448869573&raw=0

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