Function setup

waverunner/src/waverunner.rs:32–60

Setup has 3 steps 1. load the AOT-compiled Wasm module via DlOpen 2. MMap and mprotect the linear memory 3. Setup signals (maybe?) It then returns a wave_runtime object with all these things set up

(config: &WaveConfig)

// 3. Setup signals (maybe?)
// It then returns a wave_runtime object with all these things set up
fn setup(config: &WaveConfig) -> WaveSandbox {
    // 1. Load AOT-compiled Wasm module
    let module: Container<Wasm2cBinary> = unsafe {
        Container::load(config.module_path.as_str()) // wrapper around dlopen
    }
    .unwrap();

    // 2. MMap and mprotect the linear memory
    let linmem = wave_alloc_linmem() as *mut u8;

    // 3. Setup signals
    wave_setup_signals();

    let vmctx = create_ctx(
        linmem,
        &config.homedir,
        config.args.clone(),
        config.argc,
        config.env.clone(),
        config.envc,
        config.netlist,
    );

    WaveSandbox {
        module,
        vmctx,
        linmem,
    }
}

// The execute stage simply consists of calling the __start function
// returns the result code of executing the sandbox