探究ELF文件整体结构（根据样例代码说明）

样例代码：

#include <stdio.h>

#include <stdlib.h>

#include <sys/types.h>

#include <unistd.h>

int ginit1 = 0xAAAA;                // global initialized var;

int ginit2 = 0xBBBB;                // global initialized var;

int guninit1, guninit2;             // global uninitialized var;                    //external var;

int main(int argc, char* argv[]){

    int i = 0xCCCC; //local var;

    int j;

    static int sum;         &nb