Function link_module 

pub fn link_module(
    target: &Target,
    compile_info_blob: &[u8],
    build_directory: &Path,
    object_files: &[PathBuf],
    import_trampoline_objects: &[PathBuf],
    trampoline_objects: &[PathBuf],
    dynamic_trampoline_objects: &[PathBuf],
    debug_dir: Option<PathBuf>,
    module_hash: Option<String>,
    function_max_stack_usage: PrimaryMap<LocalFunctionIndex, Option<usize>>,
) -> Result<Compilation, CompileError>

Link all the per-function and trampoline objects (plus the Wasmer metadata object) into the final shared-object module image.