Supported platforms (was: Re: Execution problems with Atomic Operations on OpenJDK10 for ARM5 Soft Float)

2018-04-08 Thread Simon Nash
On 05/04/2018 02:26, b...@juanantonio.info wrote: Many thanks with the link about the Platforms supported: http://www.oracle.com/technetwork/java/javase/documentation/jdk10certconfig-4417031.html This appears to be a list of the platforms that are supported (certified) by Oracle. Where can

RE: Execution problems with Atomic Operations on OpenJDK10 for ARM5 Soft Float

2018-04-05 Thread Fairoz Matte
Hi Juan Antonio, > -Original Message- > From: b...@juanantonio.info [mailto:b...@juanantonio.info] > > Good night David, > > It is the first time that I report a Bug on OpenJDK and I didn´t receive any > notification so I didn´t know the status of the Issue that I reported. Yes, there

Re: Execution problems with Atomic Operations on OpenJDK10 for ARM5 Soft Float

2018-04-04 Thread David Holmes
On 5/04/2018 1:30 PM, b...@juanantonio.info wrote: Hi David, Many thanks for the comments. In relation to the ARMV5 support, in the past Oracle released a version for Mindstorms: http://www.oracle.com/technetwork/java/embedded/downloads/javase/javaseemeddedev3-1982511.html but if you

Re: Execution problems with Atomic Operations on OpenJDK10 for ARM5 Soft Float

2018-04-04 Thread bren
Hi David, Many thanks for the comments. In relation to the ARMV5 support, in the past Oracle released a version for Mindstorms: http://www.oracle.com/technetwork/java/embedded/downloads/javase/javaseemeddedev3-1982511.html but if you observe that release was Java 8. For Java 9, we could

Re: Execution problems with Atomic Operations on OpenJDK10 for ARM5 Soft Float

2018-04-04 Thread David Holmes
On 5/04/2018 11:26 AM, b...@juanantonio.info wrote: Good night David, It is the first time that I report a Bug on OpenJDK and I didn´t receive any notification so I didn´t know the status of the Issue that I reported. Sorry about that. You should have received some form of notification.

Re: Execution problems with Atomic Operations on OpenJDK10 for ARM5 Soft Float

2018-04-04 Thread bren
Good night David, It is the first time that I report a Bug on OpenJDK and I didn´t receive any notification so I didn´t know the status of the Issue that I reported. Many thanks with the link about the Platforms supported:

Re: Execution problems with Atomic Operations on OpenJDK10 for ARM5 Soft Float

2018-04-04 Thread David Holmes
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

Re: Execution problems with Atomic Operations on OpenJDK10 for ARM5 Soft Float

2018-04-04 Thread Bob Vandette
I believe the problem is that the VM is now using more atomic load/store of java longs and we don’t support these operations on multi-processing ARMv5 systems due to the lack of low level atomic instructions. On non MP ARMv5 systems, we use load/store multiple instructions. If you can

Re: Execution problems with Atomic Operations on OpenJDK10 for ARM5 Soft Float

2018-04-04 Thread John Paul Adrian Glaubitz
CC'ing hotspot-dev On 04/04/2018 12:29 PM, b...@juanantonio.info wrote: > I think that in OpenJDK10 changed something in compare to OpenJDK9 in > relation to ARM5 support. It was OpenJDK9 which dropped support for ARM CPUs prior ARMv7. If you are using ARMv5, you have to resort to OpenJDK Zero,

Execution problems with Atomic Operations on OpenJDK10 for ARM5 Soft Float

2018-04-04 Thread bren
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