V8 for arm64

[Jochen Eisinger]

Hey all,

We’re happy to announce that with V8 version 3.25 a new platform called arm64 was added to the list of officially supported platforms.

You can enable this platform by setting v8_target_arch=arm64, the code lives under src/arm64. If you compile on a x64 platform, arm64 will use a built-in simulator, similar to arm. The usual targets exists: arm64.{release,debug,optdebug} and android_arm64.{release,debug,optdebug}, and the quickcheck target will run tests on arm64.release.

A special thank you to Rodolph Perfetta and his team for the initial implementation and their help during upstreaming and stabilizing the arm64 platform.

best

- Ulan, Ross, and Jochen