September 2020 - aarch64-port-dev

macOS/Aarch64 workflow
by Anton Kozlov 14 Oct '20

14 Oct '20

Hi all, Since the JEP for macOS/AArch64[1] became Candidate, we can work on the port under the OpenJDK roof. That is, sharing and discussing changes that eventually will be integrated as parts of the JEP implementation. I know there are multiple parties willing to contribute, and this is great! To understand what should be done and what somebody has done, I have started filling in JDK-8253795: Implementation of JEP 391: macOS/AArch64 Port[2]. I propose to use subtasks to track changes that constitute the port, and use related links for other changes, like fixes for bugs earlier unnoticed, related enhancements,... These lists are not complete yet. So far, for me it does _not_ look like the implementation will span for a large number of commits. But anyway we need a way to effectively collaborate on code. The chosen way should also ensure that the involved party has signed the OCA. We can use jdk-sandbox[3], which serves exactly this need (apparently it has been moved to git[4] after openjdk/jdk as well). But you have to be a JDK Project Committer to use the sandbox. It looks like another option for non-Committers is to use draft Pull Requests on GitHub to openjdk/jdk repo, which would be the same as using cr.openjdk.java.net. Then others could pull changes from openjdk/jdk/pull/..., after ensuring the Skara bot have verified the OCA status of the PR. There are other options, like a project or a repo under an existing project. Let's discuss them. Thanks, Anton [1] https://openjdk.java.net/jeps/391 [2] https://bugs.openjdk.java.net/browse/JDK-8253795 [3] https://cr.openjdk.java.net/~chegar/docs/sandbox.html [4] https://github.com/openjdk/jdk-sandbox On 26.09.2020 00:23, mark.reinhold(a)oracle.com wrote: > https://openjdk.java.net/jeps/391

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[RFR] [8u] 8u272-b09 Upstream Sync
by Andrew Hughes 01 Oct '20

01 Oct '20

Webrevs: https://cr.openjdk.java.net/~andrew/shenandoah-8/u272-b09/ Merge changesets: http://cr.openjdk.java.net/~andrew/shenandoah-8/u272-b09/corba/merge.change… http://cr.openjdk.java.net/~andrew/shenandoah-8/u272-b09/jaxp/merge.changes… http://cr.openjdk.java.net/~andrew/shenandoah-8/u272-b09/jaxws/merge.change… http://cr.openjdk.java.net/~andrew/shenandoah-8/u272-b09/jdk/merge.changeset http://cr.openjdk.java.net/~andrew/shenandoah-8/u272-b09/hotspot/merge.chan… http://cr.openjdk.java.net/~andrew/shenandoah-8/u272-b09/langtools/merge.ch… http://cr.openjdk.java.net/~andrew/shenandoah-8/u272-b09/nashorn/merge.chan… http://cr.openjdk.java.net/~andrew/shenandoah-8/u272-b09/root/merge.changes… Changes in aarch64-shenandoah-jdk8u272-b09: - JDK-8252886: [TESTBUG] sun/security/ec/TestEC.java : Compilation failed Main issues of note: None, clean merge (no HotSpot changes). diffstat for root b/.hgtags | 1 + 1 file changed, 1 insertion(+) diffstat for corba b/.hgtags | 1 + 1 file changed, 1 insertion(+) diffstat for jaxp b/.hgtags | 1 + 1 file changed, 1 insertion(+) diffstat for jaxws b/.hgtags | 1 + 1 file changed, 1 insertion(+) diffstat for langtools b/.hgtags | 1 + 1 file changed, 1 insertion(+) diffstat for nashorn b/.hgtags | 1 + 1 file changed, 1 insertion(+) diffstat for jdk b/.hgtags | 1 + b/test/sun/security/ec/TestEC.java | 1 + 2 files changed, 2 insertions(+) diffstat for hotspot b/.hgtags | 1 + 1 file changed, 1 insertion(+) Successfully built on x86, x86_64, s390x (Zero), ppc64le, aarch32 (Zero) & aarch64 [0]. Ok to push? [0] https://koji.fedoraproject.org/koji/buildinfo?buildID=1616531 Thanks, -- Andrew :) Senior Free Java Software Engineer OpenJDK Package Owner Red Hat, Inc. (http://www.redhat.com) PGP Key: ed25519/0xCFDA0F9B35964222 (hkp://keys.gnupg.net) Fingerprint = 5132 579D D154 0ED2 3E04 C5A0 CFDA 0F9B 3596 4222

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New candidate JEP: 391: macOS/AArch64 Port
by mark.reinhold＠oracle.com 25 Sep '20

25 Sep '20

https://openjdk.java.net/jeps/391 - Mark

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[16][RFR][s]:8252835:Revert fix for JDK-8246051
by Wang Zhuo(Zhuoren) 22 Sep '20

22 Sep '20

As discussed before, this patch is to revert JDK-8246051(SIGBUS by unaligned Unsafe compare_and_swap). Please review. JDK bug: https://bugs.openjdk.java.net/browse/JDK-8252835 Patch: http://cr.openjdk.java.net/~wzhuo/8252835/webrev.00/ Regards, Zhuoren

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hg: aarch64-port/jdk8u-shenandoah/jdk: 5 new changesets
by gnu.andrew＠redhat.com 18 Sep '20

18 Sep '20

Changeset: 9deaed6c4a0f Author: zgu Date: 2020-09-09 14:18 -0400 URL: https://hg.openjdk.java.net/aarch64-port/jdk8u-shenandoah/jdk/rev/9deaed6c4… 8151678: com/sun/jndi/ldap/LdapTimeoutTest.java failed due to timeout on DeadServerNoTimeoutTest is incorrect Reviewed-by: dfuchs, martin, robm ! src/share/classes/com/sun/jndi/ldap/DefaultLdapDnsProvider.java ! src/share/classes/com/sun/jndi/ldap/LdapDnsProviderService.java ! test/com/sun/jndi/ldap/LdapTimeoutTest.java ! test/com/sun/jndi/ldap/lib/BaseLdapServer.java Changeset: ab2e99db6702 Author: zgu Date: 2020-09-09 14:19 -0400 URL: https://hg.openjdk.java.net/aarch64-port/jdk8u-shenandoah/jdk/rev/ab2e99db6… 8062947: Fix exception message to correctly represent LDAP connection failure Reviewed-by: dfuchs, xyin, vtewari ! src/share/classes/com/sun/jndi/ldap/Connection.java ! src/share/classes/com/sun/jndi/ldap/LdapRequest.java + test/com/sun/jndi/ldap/NamingExceptionMessageTest.java Changeset: 63dd5b7d50eb Author: andrew Date: 2020-09-14 16:42 +0100 URL: https://hg.openjdk.java.net/aarch64-port/jdk8u-shenandoah/jdk/rev/63dd5b7d5… Added tag jdk8u272-b08 for changeset ab2e99db6702 ! .hgtags Changeset: ce694a8afb58 Author: andrew Date: 2020-09-16 03:31 +0100 URL: https://hg.openjdk.java.net/aarch64-port/jdk8u-shenandoah/jdk/rev/ce694a8af… Merge jdk8u272-b08 ! .hgtags ! src/share/classes/com/sun/jndi/ldap/Connection.java Changeset: 0632eeee979a Author: andrew Date: 2020-09-16 03:34 +0100 URL: https://hg.openjdk.java.net/aarch64-port/jdk8u-shenandoah/jdk/rev/0632eeee9… Added tag aarch64-shenandoah-jdk8u272-b08 for changeset ce694a8afb58 ! .hgtags

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hg: aarch64-port/jdk8u-shenandoah/langtools: 3 new changesets
by gnu.andrew＠redhat.com 18 Sep '20

18 Sep '20

Changeset: acab1eb3dc4c Author: andrew Date: 2020-09-14 16:42 +0100 URL: https://hg.openjdk.java.net/aarch64-port/jdk8u-shenandoah/langtools/rev/aca… Added tag jdk8u272-b08 for changeset 462446582ece ! .hgtags Changeset: 924ffebbf3e9 Author: andrew Date: 2020-09-16 03:31 +0100 URL: https://hg.openjdk.java.net/aarch64-port/jdk8u-shenandoah/langtools/rev/924… Merge jdk8u272-b08 ! .hgtags Changeset: a53e0a7f8b2a Author: andrew Date: 2020-09-16 03:34 +0100 URL: https://hg.openjdk.java.net/aarch64-port/jdk8u-shenandoah/langtools/rev/a53… Added tag aarch64-shenandoah-jdk8u272-b08 for changeset 924ffebbf3e9 ! .hgtags

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[RFR] [8u] 8u272-b08 Upstream Sync
by Andrew Hughes 18 Sep '20

18 Sep '20

Webrevs: https://cr.openjdk.java.net/~andrew/shenandoah-8/u272-b08/ Merge changesets: http://cr.openjdk.java.net/~andrew/shenandoah-8/u272-b08/corba/merge.change… http://cr.openjdk.java.net/~andrew/shenandoah-8/u272-b08/jaxp/merge.changes… http://cr.openjdk.java.net/~andrew/shenandoah-8/u272-b08/jaxws/merge.change… http://cr.openjdk.java.net/~andrew/shenandoah-8/u272-b08/jdk/merge.changeset http://cr.openjdk.java.net/~andrew/shenandoah-8/u272-b08/hotspot/merge.chan… http://cr.openjdk.java.net/~andrew/shenandoah-8/u272-b08/langtools/merge.ch… http://cr.openjdk.java.net/~andrew/shenandoah-8/u272-b08/nashorn/merge.chan… http://cr.openjdk.java.net/~andrew/shenandoah-8/u272-b08/root/merge.changes… Changes in aarch64-shenandoah-jdk8u272-b08: - JDK-8062947: Fix exception message to correctly represent LDAP connection failure - JDK-8151678: com/sun/jndi/ldap/LdapTimeoutTest.java failed due to timeout on DeadServerNoTimeoutTest is incorrect - JDK-8252573: 8u: Windows build failed after 8222079 backport Main issues of note: None, clean merge (only one minor one line HotSpot change). diffstat for root b/.hgtags | 1 + 1 file changed, 1 insertion(+) diffstat for corba b/.hgtags | 1 + 1 file changed, 1 insertion(+) diffstat for jaxp b/.hgtags | 1 + 1 file changed, 1 insertion(+) diffstat for jaxws b/.hgtags | 1 + 1 file changed, 1 insertion(+) diffstat for langtools b/.hgtags | 1 + 1 file changed, 1 insertion(+) diffstat for nashorn b/.hgtags | 1 + 1 file changed, 1 insertion(+) diffstat for jdk b/.hgtags | 1 b/src/share/classes/com/sun/jndi/ldap/Connection.java | 65 b/src/share/classes/com/sun/jndi/ldap/DefaultLdapDnsProvider.java | 4 b/src/share/classes/com/sun/jndi/ldap/LdapDnsProviderService.java | 25 b/src/share/classes/com/sun/jndi/ldap/LdapRequest.java | 27 b/test/com/sun/jndi/ldap/LdapTimeoutTest.java | 778 +++++----- b/test/com/sun/jndi/ldap/NamingExceptionMessageTest.java | 165 ++ b/test/com/sun/jndi/ldap/lib/BaseLdapServer.java | 27 8 files changed, 669 insertions(+), 423 deletions(-) diffstat for hotspot b/.hgtags | 1 + b/src/share/vm/compiler/disassembler.cpp | 1 - 2 files changed, 1 insertion(+), 1 deletion(-) Successfully built on x86, x86_64, s390x (Zero), ppc64le, aarch32 (Zero) & aarch64 [0]. Ok to push? [0] https://koji.fedoraproject.org/koji/buildinfo?buildID=1612280 Thanks, -- Andrew :) Senior Free Java Software Engineer OpenJDK Package Owner Red Hat, Inc. (http://www.redhat.com) PGP Key: ed25519/0xCFDA0F9B35964222 (hkp://keys.gnupg.net) Fingerprint = 5132 579D D154 0ED2 3E04 C5A0 CFDA 0F9B 3596 4222

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hg: aarch64-port/jdk8u-shenandoah: 3 new changesets
by gnu.andrew＠redhat.com 18 Sep '20

18 Sep '20

Changeset: 7f60c2d9823e Author: andrew Date: 2020-09-14 16:42 +0100 URL: https://hg.openjdk.java.net/aarch64-port/jdk8u-shenandoah/rev/7f60c2d9823e Added tag jdk8u272-b08 for changeset 34c6baf21464 ! .hgtags Changeset: ea6b293b309b Author: andrew Date: 2020-09-16 03:31 +0100 URL: https://hg.openjdk.java.net/aarch64-port/jdk8u-shenandoah/rev/ea6b293b309b Merge jdk8u272-b08 ! .hgtags Changeset: 2ebc0ea01258 Author: andrew Date: 2020-09-16 03:34 +0100 URL: https://hg.openjdk.java.net/aarch64-port/jdk8u-shenandoah/rev/2ebc0ea01258 Added tag aarch64-shenandoah-jdk8u272-b08 for changeset ea6b293b309b ! .hgtags

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Interested in Using JDK on ARM 64
by Pinguino Jefe 17 Sep '20

17 Sep '20

Hello, Although I found your repository, I am a bit clueless when it comes to installing it on my ARM Lenovo Yoga C630 with Windows 10. My main purpose is to use it with Android Studio if possible. Could you please direct me to a step-by-step on how to install it? Thanks, Gavin

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RFR: 8252204: AArch64: Implement SHA3 accelerator/intrinsic
by Yangfei (Felix) 17 Sep '20

17 Sep '20

Hi, Bug: https://bugs.openjdk.java.net/browse/JDK-8252204 Webrev: http://cr.openjdk.java.net/~fyang/8252204/webrev.00/ This added an intrinsic for SHA3 using aarch64 v8.2 SHA3 Crypto Extensions. Reference implementation for core SHA-3 transform using ARMv8.2 Crypto Extensions: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/tree/arch/… Trivial adaptation in SHA3. implCompress is needed for the purpose of adding the intrinsic. For SHA3, we need to pass one extra parameter "digestLength" to the stub for the calculation of block size. "digestLength" is also used in for the EOR loop before keccak to differentiate different SHA3 variants. We added jtreg tests for SHA3 and used QEMU system emulator which supports SHA3 instructions to test the functionality. Patch passed jtreg tier1-3 tests with QEMU system emulator. Also verified with jtreg tier1-3 tests without SHA3 instructions on aarch64-linux-gnu and x86_64-linux-gnu, to make sure that there's no regression. We used one existing JMH test for performance test: test/micro/org/openjdk/bench/java/security/MessageDigests.java We measured the performance benefit with an aarch64 cycle-accurate simulator. Patch delivers 20% - 40% performance improvement depending on specific SHA3 digest length and size of the message. For now, this feature will not be enabled automatically for aarch64. We can auto-enable this when it is fully tested on real hardware. But for the above testing purposes, this is auto-enabled when the corresponding hardware feature is detected. Comments? Thanks, Felix

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