"Unsupported ELF header" when running Go-compiled WASM

[TKOTKCh]

Issue Description

I am trying to run a Go-compiled WASM module (testhyperlight-go.wasm) with hyperlight-wasm, but encounter the following error:

Error: GuestError(GuestError, "Error: failed to parse precompiled artifact as an ELF\n\nCaused by:\n    Unsupported ELF header")

This occurs when attempting to load the WASM file in the modified examples/helloworld/main.rs test case (see Reproduction Steps below).

---

Reproduction Steps

1. Compile the Go WASM module:

   bash
   
   GOOS=wasip1 GOARCH=wasm go build -o "testhyperlight-go.wasm"

   package main
    
   //go:wasmexport noReturnCal
   func noReturnCal() {
       result := 0
       for i := 0; i < 100; i++ {
           result += i
       }
   }
    
   func main() {}

2. Modify examples/helloworld/main.rs to include the new test case:

   fn main() -> Result<()> {
       let tests = [
           (
               "HelloWorld.aot",
               "HelloWorld",
               "Message from Rust Example to Wasm Function".to_string(),
           ),
           (
               "RunWasm.aot",
               "Echo",
               "Message from Rust Example to Wasm Function".to_string(),
           ),
           // New test case (Go WASM)
           (
               "testhyperlight-go.wasm",
               "noReturnCal",
               "Message from Rust Example to Wasm Function".to_string(),
           ),
       ];
       // ... (rest of the test logic)
   }

3. Run the example and observe the error:

   Result from calling HelloWorld Function in Wasm Module test case 0) is: 0
   Result from calling Echo Function in Wasm Module test case 1) is: Message from Rust Example to Wasm Function
   Error: GuestError(GuestError, "Error: failed to parse precompiled artifact as an ELF\n\nCaused by:\n    Unsupported ELF header")
   

Questions

1. Does hyperlight-wasm currently support WASM files compiled with another compiler?
   • Hyperlight provide wasm-clang-builder to compile C file , but does hyperlight compatible with Go-compiled WASM (with WASI support, such as GOOS=wasip1 GOARCH=wasm go build).
2. If not, are there any possible modifications that can make hyperlight-wasm work with Go-compiled WASM?

---

[jsturtevant]

Hyperlight-wasm runs pre-compiled wasm. You will need to use the provided aot-compiler.

You can install it with cargo install hyperlight-wasm-aot then use it like:

hyperlight-wasm-aot compile sample.wasm sample.cwasm

You then provide the .cwasm to hyperlight. It looks like we need better docs on how to get this working. You can also see some of the steps here: https://github.com/hyperlight-dev/hyperlight-wasm-calculator-example