Has anyone tried GraalVM on Android?

If not, is anyone aware of any specific reasons why GraalVM could not be compiled up for Android?

[dougxc]

I have no experience developing on or for Android but one immediate limitation I can think of is that GraalVM does not have a working ARM backend (yet).

[dougxc]

Let me clarify a little. The Graal compiler itself has a working ARM backend. However, we don't yet have all the pieces in place in SVM to build a GraalVM binary for ARM.

Thanks for the clarification Simon. Approximately how much work is it to get those missing SVN pieces in place? As an alternative (possibly dumb) idea, would it make any sense at all to run the Java parts on top of the existing Android JVM. I'm most interested in the polyglot aspects of GraalVM on Android, as opposed to performance. One way or the other I'd like to run my polyglot GraalVM applications on Android. Trying to find the shortest, most sensible route to that goal.

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On Fri, Aug 24, 2018, 23:23 Douglas Simon ***@***.***> wrote: Let me clarify a little. The Graal compiler itself has a working ARM backend. However, we don't yet have all the pieces in place in SVM to build a GraalVM binary for ARM. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#632 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AJ6NAdih8HFuEBAloJwCmMmyWEzo9my4ks5uUO1ZgaJpZM4WH6mD> .

[sanzinger]

For reference, similar discussion was done in #373.

[bobmcwhirter]

fwiw, I'm taking a task to impl the SubstrateVM on AArch64. (Sponsored FTE work).

[dougxc]

Hi @bobmcwhirter , that's great to hear! @sanzinger is also working on this so it would be good to coordinate to avoid duplicated work.

[sanzinger]

Hi @bobmcwhirter,
I have some changes pending towards getting Substrate for AArch64. I'm trying to integrate them in the next days.
Then we can discuss the areas where we want to go forward with/what are the missing pieces.

General question since this issue is asking for Android? Are you targeting Android or Linux?

[bobmcwhirter]

Starting with LINUX_AARCH64. IOS would be my next goal but that’s just a personal goal. Can you push a branch we could collaborate on? I’ve got my stubs here (started Friday): https://github.com/bobmcwhirter/graal/tree/aarch64-platform?files=1

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On Mon, Dec 3, 2018 at 5:28 AM Stefan Anzinger ***@***.***> wrote: Hi @bobmcwhirter <https://github.com/bobmcwhirter>, I have some changes pending towards getting Substrate for AArch64. I'm trying to integrate them in the next days. Then I we can discuss the areas where we want to go forward with/what are the missing pieces. General question since this issue is asking for Android? Are you targeting Android or Linux? — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#632 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AAA-T0Ro7Q4U4rS1WBTbbZpg54cYbvkZks5u1Py8gaJpZM4WH6mD> .

[sanzinger]

Hi, thank you for sharing. These things are already there on our internal branch. Let me check, if I can share the branch with you.

[bobmcwhirter]

Great thanks. I’m eager to continue working toward arm so whatever you can share or think would be a good way to collaborate would be great. I have signed the Oracle CLA already (via Red Hat). My big aarch64 hardware should arrive soon to supplant my RPi. I’d also like to support cross-compilation to aarch64 from x86 platforms at some point. Bob

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On Mon, Dec 3, 2018 at 6:56 AM Stefan Anzinger ***@***.***> wrote: Hi, thank you for sharing. These things are already there on our internal branch. Let me check, if I can share the branch with you. — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#632 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AAA-T2ogiVIEP42ldATekDjwgora9Eakks5u1RFqgaJpZM4WH6mD> .

[sanzinger]

Yes, crosscompilation is a thing here since the native image builder requires reasonable amount of memory for real world programs.
But for the first go we really want to get a simple hello world program running.
I am currently working to prepare the branch for sharing. I'll keep you updated later today.

[sanzinger]

I have pushed the branch with the current state: https://github.com/sanzinger/graal/tree/svm/aarch64

I'll provide some instructions to it tomorrow.