exit(status Int) { syscall(0x2000001, status) } fork() -> Int { return syscall(0x2000002) } execve(path *Any, argv *Any, envp *Any) -> Int { return syscall(0x200003B, path, argv, envp) } waitid(type Int, id Int, info *Any, options Int) -> Int { return syscall(0x20000AD, type, id, info, options) }