On 08/02/18 17:20, Bruce Hoult wrote: > Having been involved in porting Microsoft's CoreCLR JIT to ARM (for Tizen > 4.0) I'd say that's an underestimate, unless OpenJDK is somehow far better > written.
We have done it before. It's a lower bound. Mind you, unless there's some real hardware available it'll take a lot longer. For AArch64 we wrote a tiny simulator and lined it in to the HotSpot runtime so that everything except the JIT-generated code ran as native optimized x86-64 code. That helped a lot: if you had to run the entire JVM in emulation you'd die waiting for it to get as far as generating the interpreter. -- Andrew Haley Java Platform Lead Engineer Red Hat UK Ltd. <https://www.redhat.com> EAC8 43EB D3EF DB98 CC77 2FAD A5CD 6035 332F A671
