Enable the wasm interpreter, `drumbrake` in v8

[yanjiew1]

What is the problem this feature will solve?

Currently, when Node.js is run with JIT disabled, WebAssembly is unavailable.

What is the feature you are proposing to solve the problem?

I propose enabling the WebAssembly interpreter, Drumbrake, when building V8. When Node is run with JIT disabled, Drumbrake could be used to execute WebAssembly modules.

Supporting WebAssembly in jitless mode would be beneficial because it would allow the built-in fetch() to work when Node is running with --jitless, since undici depends on WebAssembly (see: nodejs/undici#4708).

What alternatives have you considered?

No response

[targos]

Is it enabled by default in pure V8 or Chromium ?

[targos]

It's not: https://github.com/v8/v8/blob/4201bfaacc594cf609c91ce721f44ffaa0f37653/gni/v8.gni#L99-L100

[Renegade334]

Drumbrake has both platform and architecture restrictions that don't cover our official builds, and also mandates enabling pointer compression, so I don't see any way in which it gets enabled by default in the build environment. However, it could be worth adding a configure option for custom builds.

[github-actions]

This issue has been marked as stale due to 90 days of inactivity.
It will be automatically closed in 30 days if no further activity occurs. If this is still relevant, please leave a comment or update it to keep it open.

[github-actions]

This issue has been automatically closed after 30 days of inactivity following its stale status (no activity for a total of 120 days).
If this is still relevant, feel free to reopen it or leave a comment with additional details so we can continue the discussion.

[Renegade334]

Obviated by #66459.