Execution problems with Atomic Operations on OpenJDK10 for ARM5 Soft Float (original) (raw)

David Holmes david.holmes at oracle.com
Wed Apr 4 22:12:35 UTC 2018

Hi,

This was already reported as:

https://bugs.openjdk.java.net/browse/JDK-8200580

to which I have responded and closed the bug as this is not a supported platform.

As per the bug report this may be due to the change to AssumeMP to be true, but there is no MP support for ARMv5.

David

On 4/04/2018 8:29 PM, bren at juanantonio.info wrote:

Good morning,

Mi name is Juan Antonio Breña Moral, I am developing a set of Java libraries for Lego Mindstorms EV3, an ARM5 robotics device and recently, we build OpenJDK 9 with success but with OpenJDK 10, we have found some problems when we execute some Java programs. Repository to build OpenJDK 9/10 for ARM5 Soft Float: https://github.com/ev3dev-lang-java/openjdk-ev3 To test the JVM, I am using the following repo to test the VM: https://github.com/ev3dev-lang-java/vmbenchmarks And this is the output with the error: robot at ev3dev:~$ java -jar benchmarks.jar -f 1 WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by org.openjdk.jmh.util.Utils (file:/home/robot/benchmarks.jar) to field java.io.Console.cs WARNING: Please consider reporting this to the maintainers of org.openjdk.jmh.util.Utils WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release =============== DEBUG MESSAGE: Atomic load(jlong) unsupported on this platform ================ =============== DEBUG MESSAGE: Atomic store(jlong) unsupported on this platform ================

=============== DEBUG MESSAGE: Atomic load(jlong) unsupported on this platform ================ [thread 4430 also had an error] [error occurred during error reporting ((null)), id 0xe0000000] =============== DEBUG MESSAGE: Atomic store(jlong) unsupported on this platform ================ [error occurred during error reporting (printing fatal error message), id 0xe0000000] =============== DEBUG MESSAGE: Atomic store(jlong) unsupported on this platform ================ [error occurred during error reporting (printing type of error), id 0xe0000000] =============== DEBUG MESSAGE: Atomic store(jlong) unsupported on this platform ================ [error occurred during error reporting (printing stack bounds), id 0xe0000000] =============== DEBUG MESSAGE: Atomic store(jlong) unsupported on this platform ================ [error occurred during error reporting (printing native stack), id 0xe0000000] =============== DEBUG MESSAGE: Atomic store(jlong) unsupported on this platform ================ [error occurred during error reporting (printing Java stack), id 0xe0000000] =============== DEBUG MESSAGE: Atomic store(jlong) unsupported on this platform ================ [error occurred during error reporting (printing target Java thread stack), id 0xe0000000] =============== DEBUG MESSAGE: Atomic store(jlong) unsupported on this platform ================ [error occurred during error reporting (printing siginfo), id 0xe0000000] =============== DEBUG MESSAGE: Atomic store(jlong) unsupported on this platform ================ [error occurred during error reporting (CDS archive access warning), id 0xe0000000] =============== DEBUG MESSAGE: Atomic store(jlong) unsupported on this platform ================ [error occurred during error reporting (printing register info), id 0xe0000000] =============== DEBUG MESSAGE: Atomic store(jlong) unsupported on this platform ================ [Too many errors, abort] Aborted I think that in OpenJDK10 changed something in compare to OpenJDK9 in relation to ARM5 support. Any idea? Many thanks in advance. Cheers Juan Antonio

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