DWARF
                                        CFA     ra
void fib7() {                 0x615     rsp+8   c-8
    int fibo[8];              0x620     rsp+48  c-8
    fibo[0] = 1;
    fibo[1] = 1;
    for(...)
        ...
    printf("%d\n", fibo[7]);
                              0x659     rsp+8   c-8
}