C++ 程序崩溃时生成Dump文件
本方法仅限于windows平台下,跨平台不可用。
路径需要为全路径,默认生成在当前程序的执行目录。
注意路径的字符类型。
#include <DbgHelp.h> //生产DUMP文件 int GenerateMiniDump(HANDLE hFile, PEXCEPTION_POINTERS pExceptionPointers, PWCHAR pwAppName) { BOOL bOwnDumpFile = FALSE; HANDLE hDumpFile = hFile; MINIDUMP_EXCEPTION_INFORMATION ExpParam; typedef BOOL(WINAPI * MiniDumpWriteDumpT)( HANDLE, DWORD, HANDLE, MINIDUMP_TYPE, PMINIDUMP_EXCEPTION_INFORMATION, PMINIDUMP_USER_STREAM_INFORMATION, PMINIDUMP_CALLBACK_INFORMATION ); MiniDumpWriteDumpT pfnMiniDumpWriteDump = NULL; HMODULE hDbgHelp = LoadLibrary(L"DbgHelp.dll"); if (hDbgHelp) pfnMiniDumpWriteDump = (MiniDumpWriteDumpT)GetProcAddress(hDbgHelp, "MiniDumpWriteDump"); if (pfnMiniDumpWriteDump) { if (hDumpFile == NULL || hDumpFile == INVALID_HANDLE_VALUE) { TCHAR szFileName[MAX_PATH] = { 0 }; TCHAR* szVersion = L"v1.0"; TCHAR dwBufferSize = MAX_PATH; SYSTEMTIME stLocalTime; GetLocalTime(&stLocalTime); CreateDirectory(szFileName, NULL); wsprintf(szFileName, L"%s-%04d%02d%02d-%02d%02d%02d-%ld-%ld.dmp", szVersion, stLocalTime.wYear, stLocalTime.wMonth, stLocalTime.wDay, stLocalTime.wHour, stLocalTime.wMinute, stLocalTime.wSecond, GetCurrentProcessId(), GetCurrentThreadId());
// szFileName是全路径文件名,这样可以指定dump文件的保存位置 hDumpFile = CreateFile(szFileName, GENERIC_READ | GENERIC_WRITE, FILE_SHARE_WRITE | FILE_SHARE_READ, 0, CREATE_ALWAYS, 0, 0); bOwnDumpFile = TRUE; OutputDebugString(szFileName); } if (hDumpFile != INVALID_HANDLE_VALUE) { ExpParam.ThreadId = GetCurrentThreadId(); ExpParam.ExceptionPointers = pExceptionPointers; ExpParam.ClientPointers = FALSE; pfnMiniDumpWriteDump(GetCurrentProcess(), GetCurrentProcessId(), hDumpFile, MiniDumpWithDataSegs, (pExceptionPointers ? &ExpParam : NULL), NULL, NULL); if (bOwnDumpFile) CloseHandle(hDumpFile); } } if (hDbgHelp != NULL) FreeLibrary(hDbgHelp); return EXCEPTION_EXECUTE_HANDLER; } LONG WINAPI ExceptionFilter(LPEXCEPTION_POINTERS lpExceptionInfo) { if (IsDebuggerPresent()) { return EXCEPTION_CONTINUE_SEARCH; } return GenerateMiniDump(NULL, lpExceptionInfo, L"test"); } int main() { //dump文件功能 SetUnhandledExceptionFilter(ExceptionFilter); }
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