When will the NDK have RISC-V support?

[John Dallman]

It's been announced that AOSP will have RISC-V support. Do we know when the NDK will have it? 

https://www.youtube.com/watch?v=70O_RmTWP58

Powerful devices to test on are a different problem, of course. 

Best,

John

[enh]

nothing to announce at this time, but the NDK will likely be one of
the last pieces. it'll be hard to keep moving the ABI forwards after
that point, and rv64gc really isn't enough. there are also some quite
fundamental issues like
https://lists.riscv.org/g/tech-unprivileged/topic/92916241 to address.

https://github.com/google/android-riscv64/issues is an incomplete
mixture of hardware/toolchain/library/OS/developer issues that we're
filling out as we work on bringing up riscv64, just to understand the
scope of the problem.

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[John Dallman]

Um . . . the "Hardware: better atomics" issue appears to be saying that a RISC-V extension is necessary to handle modern C++ atomic operations, and that this was first officially proposed only about three months ago. Have I got that right? 

Obviously getting a stable ABI is necessary before releasing RISC-V Android. But the process of getting an extension agreed and implemented by core designers is presumably going to take a year or two? 

Thanks,

John

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[enh]

like i said before (emphasis added):

https://github.com/google/android-riscv64/issues is an incomplete

mixture of **hardware**/toolchain/library/OS/developer issues that we're

filling out as we work on bringing up riscv64, just to understand the
scope of the problem.

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