如何在OD加载程序遇到入口点之前执行代码之二：静态装载DLL

来源：互联网发布：厦门市金马甲网络编辑：程序博客网时间：2024/05/17 06:42

编译器：VS2010

需要的知识：DLL的编写和使用

1.dllmain.cpp

// dllmain.cpp : Defines the entry point for the DLL application.#include "stdafx.h"BOOL APIENTRY DllMain( HMODULE hModule,                       DWORD  ul_reason_for_call,                       LPVOID lpReserved ){switch (ul_reason_for_call){case DLL_PROCESS_ATTACH:MessageBoxA(NULL,"DLL_PROCESS_ATTACH","TEST",MB_OK);break;case DLL_THREAD_ATTACH:case DLL_THREAD_DETACH:case DLL_PROCESS_DETACH:MessageBoxA(NULL,"DLL_PROCESS_DETACH","TEST",MB_OK);break;}return TRUE;}

DLL_PROCESS_ATTACH:表示该DLL第一次装载进进程空间中执行的代码

DLL_PROCESS_DETACH:表示该DLL脱离进程空间时候执行的代码

MessageBoxA函数在windows.h头文件中

2.dllTesxt.cpp

#include "stdafx.h"#include "dllTest.h"#include <iostream>using namespace std;void Show(){MessageBoxA(0,"DIAT","",MB_OK);}

3.dllTest.h

#ifndef TestDll_H_#define TestDll_H_#ifndef MYLIBDLL#define MYLIBDLL extern "C" _declspec(dllexport) #endifMYLIBDLL void Show();#endif

4.dllTest.def

LIBRARY "dllTest"EXPORTSShow @1

************************************************************************************

编译链接生成两个文件dllTest.dll和dllTest.lib

建另外一个工程

1.dll.c

#include<stdio.h>#include"dll.h"#include<windows.h>int main(){MessageBoxA(0,"1","1",0);printf("1");Show();printf("2");MessageBoxA(0,"2","2",0);}

2.dll.h

#pragma comment(lib, "dllTest.lib")#ifndef TestDll_H_#define TestDll_H_#define MYLIBDLL #ifdef __cplusplus   extern "C"#endif__declspec(dllimport) MYLIBDLL void Show();#endif

3.编译链接生成*.exe文件，用OD载入

参考资料：

1.《windows核心编程》

2.《Windows PE权威指南》

----http://blog.csdn.net/pickupyourrevolution