wasm2c modules in signal handlers

[SoniEx2]

presumably it should be possible to use wasm2c modules within signal handlers (but not across them). should this be an officially supported use-case?

[shravanrn]

Probably not unless there is an actual production use case and an active maintainer, as this sort of thing is tricky to implement securely. Informally, if you don't use wasi in your wasm module AND if the wasm module you are using in the signal handler is not also used in (1) the main program (2) other signal handlers (3) in an re-entrant signal handler, then this should probably be safe.

[shravanrn]

(Closing for now. feel free to reopen if needed.)