Error upon calling _start after upgrading to tinygo version 0.35.0

[GLMONTER]

I am using wasmtime and wasmtime-go version 29. I have a wasm module compiled with tinygo. Whenever I get the exported _start function and call it, I am getting an error. This was not an issue with tinygo version 0.34.0. The error should most likely be nil because the exit status is 0?

Code calling _start

mainFunc := module.Instance.GetExport(module.Store, "_start").Func()
_, err = mainFunc.Call(module.Store)
//error is non nil

Error received that should probably be nil

error while executing at wasm backtrace:\n    0: 0x7a4e - <unknown>!<wasm function 116>\n\nCaused by:\n    Exited with i32 exit status 0

[mjmar01]

I'm experiencing a similar issue. When building a program for the WASI target, the _start function immediately exits with code 0.

This causes wazero to close the module, making it impossible to call exported functions after that. Version 0.34.0 doesn't behave like this.

Is there a compilation option to avoid this? Or can I do something in the main function to make it not exit without blocking?

[deadprogram]

Please see PR #4734 for one possible solution to this.