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 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 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
