#include "Windows.h"
#include "DbgHelp.h"

int GenerateMiniDump(PEXCEPTION_POINTERS pExceptionPointers)
{
// 定义函数指针
typedef BOOL(WINAPI * MiniDumpWriteDumpT)(
HANDLE,
DWORD,
HANDLE,
MINIDUMP_TYPE,
PMINIDUMP_EXCEPTION_INFORMATION,
PMINIDUMP_USER_STREAM_INFORMATION,
PMINIDUMP_CALLBACK_INFORMATION
);
// 从 "DbgHelp.dll" 库中获取 "MiniDumpWriteDump" 函数
MiniDumpWriteDumpT pfnMiniDumpWriteDump = NULL;
HMODULE hDbgHelp = LoadLibrary(("DbgHelp.dll"));
if (NULL == hDbgHelp)
{
return EXCEPTION_CONTINUE_EXECUTION;
}
pfnMiniDumpWriteDump = (MiniDumpWriteDumpT)GetProcAddress(hDbgHelp, "MiniDumpWriteDump");

if (NULL == pfnMiniDumpWriteDump)
{
FreeLibrary(hDbgHelp);
return EXCEPTION_CONTINUE_EXECUTION;
}
// 创建 dmp 文件件
TCHAR szFileName[MAX_PATH] = {0};
TCHAR* szVersion = "DumpDemo_v1.0";
SYSTEMTIME stLocalTime;
GetLocalTime(&stLocalTime);
wsprintf(szFileName, "%s-%04d%02d%02d-%02d%02d%02d.dmp",
szVersion, stLocalTime.wYear, stLocalTime.wMonth, stLocalTime.wDay,
stLocalTime.wHour, stLocalTime.wMinute, stLocalTime.wSecond);
HANDLE hDumpFile = CreateFile(szFileName, GENERIC_READ | GENERIC_WRITE,
FILE_SHARE_WRITE | FILE_SHARE_READ, 0, CREATE_ALWAYS, 0, 0);
if (INVALID_HANDLE_VALUE == hDumpFile)
{
FreeLibrary(hDbgHelp);
return EXCEPTION_CONTINUE_EXECUTION;
}
// 写入 dmp 文件
MINIDUMP_EXCEPTION_INFORMATION expParam;
expParam.ThreadId = GetCurrentThreadId();
expParam.ExceptionPointers = pExceptionPointers;
expParam.ClientPointers = FALSE;
pfnMiniDumpWriteDump(GetCurrentProcess(), GetCurrentProcessId(),
hDumpFile, MiniDumpWithDataSegs, (pExceptionPointers ? &expParam : NULL), NULL, NULL);
// 释放文件
CloseHandle(hDumpFile);
FreeLibrary(hDbgHelp);
return EXCEPTION_EXECUTE_HANDLER;
}

LONG WINAPI ExceptionFilter(LPEXCEPTION_POINTERS lpExceptionInfo)
{
// 这里做一些异常的过滤或提示
if (IsDebuggerPresent())
{
return EXCEPTION_CONTINUE_SEARCH;
}
return GenerateMiniDump(lpExceptionInfo);
}

int main()
{
// 加入崩溃dump文件功能
SetUnhandledExceptionFilter(ExceptionFilter);
// 使程序崩溃产生 Dump 文件
int *p = NULL;
*p=1;
}