#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(TEXT("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 = TEXT("DumpDemo_v1.0"); SYSTEMTIME stLocalTime; GetLocalTime(&stLocalTime); wsprintf(szFileName,L"%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,CREATE_ALWAYS,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); ...; }
PS:
1、可以选择将dbghelp.dll文件放入.exe目录中
2、必须通过双击.exe的方式打开应用程序,让其崩溃退出,这样才能产生dump文件。如果是在vs下调试,则由于会有崩溃弹窗提示,程序不会自动退出,所有不会产生dump文件。这一点要注意,不能一没有产生dump文件,是觉得自己代码出问题了。