feat: add DalamudDebugStub

2025-12-14 04:34:16 +01:00 · 2020-06-06 18:41:42 +02:00 · 2020-06-06 18:41:42 +02:00 · 2d6de01c39
commit 2d6de01c39
parent 31af5d8d77
7 changed files with 392 additions and 0 deletions
--- a/DalamudDebugStub/dllmain.cpp
+++ b/DalamudDebugStub/dllmain.cpp
@ -0,0 +1,152 @@
+// dllmain.cpp : Defines the entry point for the DLL application.
+#include "pch.h"
+
+#include <stdlib.h>
+#include <tchar.h>
+#include <cstdio>
+#include <DbgHelp.h>
+#include <TlHelp32.h>
+
+BOOL ListProcessThreads(DWORD dwOwnerPID)
+{
+    HANDLE hThreadSnap = INVALID_HANDLE_VALUE;
+    THREADENTRY32 te32;
+
+    // Take a snapshot of all running threads  
+    hThreadSnap = CreateToolhelp32Snapshot(TH32CS_SNAPTHREAD, 0);
+    if (hThreadSnap == INVALID_HANDLE_VALUE)
+        return(FALSE);
+
+    // Fill in the size of the structure before using it. 
+    te32.dwSize = sizeof(THREADENTRY32);
+
+    // Retrieve information about the first thread,
+    // and exit if unsuccessful
+    if (!Thread32First(hThreadSnap, &te32))
+    {
+        CloseHandle(hThreadSnap);     // Must clean up the snapshot object!
+        return(FALSE);
+    }
+
+    // Now walk the thread list of the system,
+    // and display information about each thread
+    // associated with the specified process
+    do
+    {
+        if (te32.th32OwnerProcessID == dwOwnerPID && te32.th32ThreadID != GetCurrentThreadId())
+        {
+            _tprintf(TEXT("\n     THREAD ID      = 0x%08X"), te32.th32ThreadID);
+            _tprintf(TEXT("\n     base priority  = %d"), te32.tpBasePri);
+            _tprintf(TEXT("\n     delta priority = %d"), te32.tpDeltaPri);
+            SuspendThread(OpenThread(THREAD_ALL_ACCESS, FALSE, te32.th32ThreadID));
+        }
+    } while (Thread32Next(hThreadSnap, &te32));
+
+    _tprintf(TEXT("\n"));
+
+    //  Don't forget to clean up the snapshot object.
+    CloseHandle(hThreadSnap);
+    return(TRUE);
+}
+
+bool isExcept = false;
+
+LONG WINAPI
+VectoredHandlerSkip1(
+    struct _EXCEPTION_POINTERS* ExceptionInfo
+)
+{
+    PEXCEPTION_RECORD Record = ExceptionInfo->ExceptionRecord;
+
+    if (Record->ExceptionCode != EXCEPTION_ACCESS_VIOLATION)
+        return EXCEPTION_CONTINUE_SEARCH;
+
+    //ListProcessThreads(GetCurrentProcessId());
+
+    if (!isExcept)
+    {
+        isExcept = true;
+
+        TCHAR pszMessage[1024] = { 0 };
+        _stprintf_s(pszMessage, _T("An internal error in Dalamud or a FFXIV plugin occured.\nThe game must close.\n\nDo you wish to save troubleshooting information?\n\nReasoning: 0x%x at 0x%x"), Record->ExceptionCode, Record->ExceptionAddress);
+
+        auto res = MessageBox(NULL, pszMessage, L"Dalamud", MB_YESNO | MB_ICONERROR | MB_TOPMOST);
+
+        if (res == IDYES)
+        {
+
+            TCHAR fileName[255] = { 0 };
+
+            SYSTEMTIME t;
+            GetSystemTime(&t);
+            _stprintf_s(fileName, _T("MD-%d-%d-%d-%d-%d-%d.dmp"), t.wYear, t.wMonth, t.wDay, t.wHour, t.wMinute, t.wSecond);
+
+            HANDLE hFile = CreateFile(fileName, GENERIC_READ | GENERIC_WRITE,
+                0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
+
+            if ((hFile != NULL) && (hFile != INVALID_HANDLE_VALUE))
+            {
+                // Create the minidump 
+
+                MINIDUMP_EXCEPTION_INFORMATION mdei;
+
+                mdei.ThreadId = GetCurrentThreadId();
+                mdei.ExceptionPointers = ExceptionInfo;
+                mdei.ClientPointers = TRUE;
+
+                BOOL rv = MiniDumpWriteDump(GetCurrentProcess(), GetCurrentProcessId(),
+                    hFile, (MINIDUMP_TYPE)(MiniDumpWithFullMemory | MiniDumpWithDataSegs | MiniDumpWithThreadInfo), (ExceptionInfo != 0) ? &mdei : 0, 0, 0);
+
+                if (!rv)
+                    _stprintf_s(pszMessage, _T("MiniDumpWriteDump failed. Error: %u \n"), GetLastError());
+                else
+                    _stprintf_s(pszMessage, _T("Minidump created.\n"));
+
+                MessageBox(NULL, pszMessage, L"Dalamud", MB_OK | MB_ICONINFORMATION | MB_TOPMOST);
+
+                // Close the file 
+
+                CloseHandle(hFile);
+            }
+            else
+            {
+                _tprintf(_T("CreateFile failed. Error: %u \n"), GetLastError());
+            }
+        }
+
+        exit(-1);
+    }
+
+    PCONTEXT Context;
+
+    Context = ExceptionInfo->ContextRecord;
+#ifdef _AMD64_
+    Context->Rip++;
+#else
+    Context->Eip++;
+#endif    
+    return EXCEPTION_CONTINUE_EXECUTION;
+}
+
+BOOL APIENTRY DllMain( HMODULE hModule,
+                       DWORD  ul_reason_for_call,
+                       LPVOID lpReserved
+)
+{
+    TCHAR pszMessage[1024] = { 0 };
+
+    switch (ul_reason_for_call)
+    {
+    case DLL_PROCESS_ATTACH:
+        _stprintf_s(pszMessage, _T("GetCurrentProcessId() %d, hModule 0x%p, nReason %d\r\n"), GetCurrentProcessId(), hModule, ul_reason_for_call);
+        OutputDebugString(pszMessage);
+        AddVectoredExceptionHandler(99, VectoredHandlerSkip1);
+        break;
+    case DLL_THREAD_ATTACH:
+    case DLL_THREAD_DETACH:
+    case DLL_PROCESS_DETACH:
+        break;
+    }
+    return TRUE;
+}
+