代码

int plus(int a, int b) { return a + b; }
extern "C" void __init_libc(char **envp, char *pn);
void __libc_start_main(int (*m)(int, char **), int ac, char **av) {
    __init_libc(av + ac + 1, av[0]);
    m(ac, av);
    __asm__ volatile("mov $60,%eax; xor %edi,%edi; syscall");
    __builtin_unreachable();
}

评测结果