RFR: JEP draft for Linux/s3990x port

[Vladimir Kozlov]

On 9/27/16 10:49 AM, Volker Simonis wrote:
> Hi,
>
> can you please review and endorse the following draft JEP for the
> integration of the Linux/s390x port into the jkd9 master repository:
>
> https://bugs.openjdk.java.net/browse/JDK-8166730

Good.
Add links to webrevs in a comment. It will help to get umbrella FC 
extension approval.

>
> As detailed in the JEP, the Linux/s390x requires very few shared
> changes and we therefore don't foresee any impact on the existing
> platforms at all. Following you can find a short description of the
> planned changes:
>
> hotspot:
> =======
>
> Out for review:
> 8166560: [s390] Basic enablement of s390 port.
> http://cr.openjdk.java.net/~goetz/wr16/8166560-basic_s390/hotspot.wr01/
>
> Reviewed:
> 8166562: C2: Suppress relocations in scratch emit.
> http://cr.openjdk.java.net/~goetz/wr16/8166562-scratch_emit/webrev.01/
>
> Will send RFR soon (depends on 8166560):
> 8166561: [s390] Adaptions needed for s390 port in C1 and C2.
> http://cr.openjdk.java.net/~goetz/wr16/8166562-scratch_emit/webrev.01

Wrong link.

Thanks,
Vladimir

>
> We are still investigating the need of these shared changes:
> http://cr.openjdk.java.net/~goetz/wr16/s390x_patch_queue/hotspot/9000011-pass_PC_to_retAddrOffset.patch
> http://cr.openjdk.java.net/~goetz/wr16/s390x_patch_queue/hotspot/9000016-constant_table_offset.patch
>
> And finally the patch with the s390x-only platform files. We are still
> editing these to get them into OpenJdk style and shape.
> Hotspot passes most jck, jtreg and spec tests with these.
> http://cr.openjdk.java.net/~goetz/wr16/s390x_patch_queue/hotspot/9000101-zFiles.patch
>
> top-level repository:
> ===============
>
> The following is just adding some s390x specific compiler flags to flags.m4
> 8166800: [s390] Top-level build changes required for Linux/s390x
> https://bugs.openjdk.java.net/browse/JDK-8166800
>
> jdk repository:
> ============
>
> This one just adds a new jvm.cfg file for s390x
> 8166801: [s390] Add jvm.cfg file for Linux/s390x
> https://bugs.openjdk.java.net/browse/JDK-8166801
>
>
> And finally we plan to do one more change which fixes the jtreg test
> on Linux/s390x. But this is mainly for the correct detection of the
> platform and for excluding the tests which are not appropriate for
> s390x.
>
> Thank you and best regards,
> Volker
>