William Moberg
111 lines
3.6 KiB
C++
111 lines
3.6 KiB
C++
/*
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Author: Vladimir Sedach.
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Purpose: demo of Call Stack creation by our own means,
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and with MiniDumpWriteDump() function of DbgHelp.dll.
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*/
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#include <iostream>
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#include <ctime>
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#include <windows.h>
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#include <tlhelp32.h>
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//#include "dbghelp.h"
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//#define DEBUG_DPRINTF 1 //allow d()
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//#include "wfun.h"
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#pragma optimize("y", off) //generate stack frame pointers for all functions - same as /Oy- in the project
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#pragma warning(disable: 4200) //nonstandard extension used : zero-sized array in struct/union
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#pragma warning(disable: 4100) //unreferenced formal parameter
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// In case you don't have dbghelp.h.
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#ifndef _DBGHELP_
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typedef struct _MINIDUMP_EXCEPTION_INFORMATION {
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DWORD ThreadId;
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PEXCEPTION_POINTERS ExceptionPointers;
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BOOL ClientPointers;
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} MINIDUMP_EXCEPTION_INFORMATION, *PMINIDUMP_EXCEPTION_INFORMATION;
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typedef enum _MINIDUMP_TYPE {
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MiniDumpNormal = 0x00000000,
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MiniDumpWithDataSegs = 0x00000001,
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} MINIDUMP_TYPE;
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typedef BOOL (WINAPI * MINIDUMP_WRITE_DUMP)(
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IN HANDLE hProcess,
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IN DWORD ProcessId,
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IN HANDLE hFile,
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IN MINIDUMP_TYPE DumpType,
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IN CONST PMINIDUMP_EXCEPTION_INFORMATION ExceptionParam, OPTIONAL
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IN PVOID UserStreamParam, OPTIONAL
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IN PVOID CallbackParam OPTIONAL
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);
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#else
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typedef BOOL (WINAPI * MINIDUMP_WRITE_DUMP)(
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IN HANDLE hProcess,
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IN DWORD ProcessId,
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IN HANDLE hFile,
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IN MINIDUMP_TYPE DumpType,
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IN CONST PMINIDUMP_EXCEPTION_INFORMATION ExceptionParam, OPTIONAL
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IN PMINIDUMP_USER_STREAM_INFORMATION UserStreamParam, OPTIONAL
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IN PMINIDUMP_CALLBACK_INFORMATION CallbackParam OPTIONAL
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);
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#endif //#ifndef _DBGHELP_
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HMODULE hDbgHelp;
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MINIDUMP_WRITE_DUMP MiniDumpWriteDump_;
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// Tool Help functions.
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typedef HANDLE (WINAPI * CREATE_TOOL_HELP32_SNAPSHOT)(DWORD dwFlags, DWORD th32ProcessID);
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//*************************************************************************************
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void WINAPI Create_Dump(PEXCEPTION_POINTERS pException, BOOL File_Flag, BOOL Show_Flag)
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//*************************************************************************************
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// Create dump.
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// pException can be either GetExceptionInformation() or NULL.
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// If File_Flag = TRUE - write dump files (.dmz and .dmp) with the name of the current process.
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// If Show_Flag = TRUE - show message with Get_Exception_Info() dump.
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{
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// Try to get MiniDumpWriteDump() address.
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hDbgHelp = LoadLibrary("DBGHELP.DLL");
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MiniDumpWriteDump_ = (MINIDUMP_WRITE_DUMP)GetProcAddress(hDbgHelp, "MiniDumpWriteDump");
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// If MiniDumpWriteDump() of DbgHelp.dll available.
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if (MiniDumpWriteDump_)
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{
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HANDLE hDump_File;
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CHAR Dump_Path[MAX_PATH];
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GetModuleFileName(NULL, Dump_Path, sizeof(Dump_Path)); //path of current process
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std::time_t t = std::time(NULL);
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char tStr[16];
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std::strftime(tStr, 32, " %a %H-%M-%S", std::localtime(&t));
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std::string time(tStr);
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std::string path(Dump_Path);
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path = path.substr(0, path.length() - 4);
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path += time + ".dmp";
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MINIDUMP_EXCEPTION_INFORMATION M;
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M.ThreadId = GetCurrentThreadId();
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M.ExceptionPointers = pException;
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M.ClientPointers = 0;
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hDump_File = CreateFile(path.c_str(), GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
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MiniDumpWriteDump_(GetCurrentProcess(), GetCurrentProcessId(), hDump_File,
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MiniDumpNormal, (pException) ? &M : NULL, NULL, NULL);
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CloseHandle(hDump_File);
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std::cout << "Memory dumped to: \"" << path.c_str() << "\"";
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MessageBox(NULL, ("Application crashed, memory dumped to: " + path).c_str(), "MiniDump", MB_ICONHAND | MB_OK);
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} else {
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MessageBox(NULL, "Application crashed, memory dump failed.", "MiniDump", MB_ICONHAND | MB_OK);
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}
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}
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