Risc V Backports to jdk11u and jdk17u
thomas.stuefe at gmail.com
Mon Jan 16 12:42:13 UTC 2023
On Mon, Jan 16, 2023 at 12:02 PM Vladimir Kempik <vladimir.kempik at gmail.com>
> I know a few independent developers maintaining their own jdk17 risc-v
> Combining it in a one riscv-port-jdk17u will allow to save some resources.
> However there is one big difference between general jdk17u and riscv
> secific one: while jdk17u accepts only bug fixes and minor perf
> improvements, the riscv-port-jdk17u will have to accept larger patches: as
> risc-v port is far from being perfect so far, performance-wise is worse
> than arm64 port.
> Regards, Vladimir
> 16 янв. 2023 г., в 13:04, Ludovic Henry <ludovic at rivosinc.com> написал(а):
> As we are seeing more and more adoption of RISC-V, there is a growing need
> for users to have access to more versions of Java available on RISC-V. Many
> organizations are still using Java 11 and Java 17 in production and it
> would be great to have RISC-V support available for them too. This would
> allow them to take advantage of the benefits that RISC-V offers by making
> their codebase more portable.
> Taking a similar approach to AArch64 backports to JDK8u , we would want
> to create the openjdk/riscv-port-jdk11u and openjdk/riscv-port-jdk17u
> repositories on GitHub. Additionally, we can work with the maintainers of
> the JDK 11u  and JDK 17u  projects to ensure there is a possible path
> to getting it merged.
> Some questions which I'm not sure about yet:
> - Is there a need to backport to JDK 8u?
> - What is the engineering cost of the divergence between JDK8u and JDK
> head for the backporting effort?
> Looking forward to your feedback,
> Thank you,
>  https://hg.openjdk.java.net/aarch64-port/jdk8u
>  https://wiki.openjdk.org/display/JDKUpdates/JDK+17u#JDK17u-maintainers
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