JDK11 build failure on AIX (HotSpot and OpenJ9)

[sxa]

Creating this to ensure it's on the adoptopenjdk radar - issue is related to the sigaction symbol and is documented more fully at eclipse-openj9/openj9#2468

[keithc-ca]

It's not specific to jsig. OpenJDK started using xlc's -qvisibility=hidden option (except with xlc version 12.1), but without a change to JNIEXPORT so that the link option -bexpall doesn't do what is needed.

I have a working fix, but it involves changing one source file to workaround what appears to be an xlc bug.

[sxa]

Full fix also required removing -lpthread from the configure options we specify in our jenkins jobs. Now working on OpenJ9 builds.

[karianna]

Is this fixed for OpenJ9 and Hotspot builds now?

[sxa]

Not fully - there's a second error that is fixed in OpenJ9 but not HotSpot - I've removed the reported with upstream team now as the upstream team was OpenJ9 who have fixed their side :-)

ERROR: Build failed for targets 'images test-image' in configuration 'aix-ppc64-normal-server-release' (exit code 2) 

=== Output from failing command(s) repeated here ===
* For target support_native_java.base_libjava_BUILD_LIBJAVA_link:
ld: 0711-224 WARNING: Duplicate symbol: .jio_snprintf
ld: 0711-224 WARNING: Duplicate symbol: jio_snprintf
ld: 0711-224 WARNING: Duplicate symbol: .jio_fprintf
ld: 0711-224 WARNING: Duplicate symbol: .isnan
ld: 0711-224 WARNING: Duplicate symbol: jio_fprintf
ld: 0711-344 See the loadmap file /ramdisk0/build/workspace/openjdk11_build_ppc64_aix/openjdk/build/aix-ppc64-normal-server-release/support/native/java.base/libjava/libjava.loadmap for more information.
ld: 0711-317 ERROR: Undefined symbol: .VerifyFixClassname
ld: 0711-317 ERROR: Undefined symbol: .VerifyClassname
ld: 0711-317 ERROR: Undefined symbol: .VerifyClass
ld: 0711-317 ERROR: Undefined symbol: .VerifyClassForMajorVersion

NOTE: I have created #461 to cover doing a check of our current configure flags.

[M-Davies]

This looks to be resolved now. @karianna can this be closed?

[karianna]

This looks to be resolved now. @karianna can this be closed?

AIX Builds are green for Hotspot and JDK 11 so yes.