wip

Dalamud.Boot/Dalamud.Boot.vcxproj

@@ -47,6 +47,7 @@
       <SubSystem>Windows</SubSystem>
       <GenerateDebugInformation>true</GenerateDebugInformation>
       <EnableUAC>false</EnableUAC>
+      <AdditionalDependencies>dbghelp.lib;%(AdditionalDependencies)</AdditionalDependencies>
       <AdditionalLibraryDirectories>..\lib\CoreCLR;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
     </Link>
   </ItemDefinitionGroup>

Dalamud.Boot/dllmain.cpp

@@ -3,10 +3,146 @@
 
 #include <filesystem>
 #include <Windows.h>
+#include <stdlib.h>
+#include <tchar.h>
+#include <DbgHelp.h>
 #include "..\lib\CoreCLR\CoreCLR.h"
 #include "..\lib\CoreCLR\boot.h"
+#include <fstream>
 
 HMODULE g_hModule;
+BOOL g_isExcept = false;
+
+LONG WINAPI VectoredHandler(struct _EXCEPTION_POINTERS* ExceptionInfo)
+{
+    auto record = ExceptionInfo->ExceptionRecord;
+    auto context = ExceptionInfo->ContextRecord;
+
+    if (record->ExceptionCode != EXCEPTION_ACCESS_VIOLATION)
+        return EXCEPTION_CONTINUE_SEARCH;
+
+    if (!g_isExcept)
+    {
+        g_isExcept = true;
+
+        #pragma region Setup base path
+
+        wchar_t base_path_arr[MAX_PATH];
+        GetModuleFileNameW(g_hModule, base_path_arr, MAX_PATH);
+        std::filesystem::path base_path(base_path_arr);
+        base_path = base_path.remove_filename();
+
+        #if defined(NDEBUG) 
+        base_path = base_path / L".." / L".." / L"..";
+        #endif
+
+        #pragma endregion
+
+        #pragma region Write to dalamud.log
+
+        wchar_t dalamud_log_path_arr[MAX_PATH];
+        wcsncpy_s(dalamud_log_path_arr, base_path_arr, MAX_PATH);
+        std::filesystem::path dalamud_log_path(dalamud_log_path_arr);
+        dalamud_log_path /= L"dalamud.log";
+
+        auto base_address = (unsigned long long)GetModuleHandleW(nullptr);
+        auto ex_address = (unsigned long long)record->ExceptionAddress;
+        auto actual_address = ex_address - base_address + 0x140000000;
+
+        FILE* log_handle;
+        errno_t result = _wfopen_s(&log_handle, dalamud_log_path.c_str(), L"a");
+        if (!result)
+        {
+            MessageBox(NULL, L"Could not open dalamud.log for writing.", L"Dalamud", MB_OK | MB_ICONERROR | MB_TOPMOST);
+        }
+        else
+        {
+
+            fwprintf_s(log_handle, L"--------------------------------------------------------------------------------\n");
+            fwprintf_s(log_handle, L"An internal error in Dalamud or a plugin occurred. 0x%X at 0x%p (0x%p)", record->ExceptionCode, record->ExceptionAddress, actual_address);
+            fwprintf_s(log_handle, L"Rax=%p R08=%p", context->Rax, context->R8);
+            fwprintf_s(log_handle, L"Rcx=%p R09=%p", context->Rcx, context->R9);
+            fwprintf_s(log_handle, L"Rdx=%p R10=%p", context->Rdx, context->R10);
+            fwprintf_s(log_handle, L"Rbx=%p R11=%p", context->Rbx, context->R11);
+            fwprintf_s(log_handle, L"Rsp=%p R12=%p", context->Rsp, context->R12);
+            fwprintf_s(log_handle, L"Rbp=%p R13=%p", context->Rbp, context->R13);
+            fwprintf_s(log_handle, L"Rsi=%p R14=%p", context->Rsi, context->R14);
+            fwprintf_s(log_handle, L"Rdi=%p R15=%p", context->Rdi, context->R15);
+            fwprintf_s(log_handle, L"Xmm00=%f Xmm08=%f", context->Xmm0, context->Xmm8);
+            fwprintf_s(log_handle, L"Xmm01=%f Xmm09=%f", context->Xmm1, context->Xmm9);
+            fwprintf_s(log_handle, L"Xmm02=%f Xmm10=%f", context->Xmm2, context->Xmm10);
+            fwprintf_s(log_handle, L"Xmm03=%f Xmm11=%f", context->Xmm3, context->Xmm11);
+            fwprintf_s(log_handle, L"Xmm04=%f Xmm12=%f", context->Xmm4, context->Xmm12);
+            fwprintf_s(log_handle, L"Xmm05=%f Xmm13=%f", context->Xmm5, context->Xmm13);
+            fwprintf_s(log_handle, L"Xmm06=%f Xmm14=%f", context->Xmm6, context->Xmm14);
+            fwprintf_s(log_handle, L"Xmm07=%f Xmm15=%f", context->Xmm7, context->Xmm15);
+            fwprintf_s(log_handle, L"--------------------------------------------------------------------------------\n");
+            fclose(log_handle);
+        }
+
+        #pragma endregion
+
+        wchar_t pszMessage[1024] = { 0 };
+        swprintf_s(pszMessage, L"An internal error in Dalamud or a plugin occurred.\nThe game must close.\n\nDo you wish to save a memory dump?\n\nReasoning: 0x%X at 0x%p (0x%p)", record->ExceptionCode, record->ExceptionAddress, actual_address);
+
+        auto result = MessageBox(NULL, pszMessage, L"Dalamud", MB_YESNO | MB_ICONERROR | MB_TOPMOST);
+        if (result == IDYES)
+        {
+            #pragma region Write minidump
+
+            SYSTEMTIME t;
+            GetSystemTime(&t);
+
+            wchar_t file_name[30] = { 0 };
+            swprintf_s(file_name, L"MiniDump-%04d%02d%02d-%02d%02d%02d.dmp", t.wYear, t.wMonth, t.wDay, t.wHour, t.wMinute, t.wSecond);
+
+            wchar_t minidump_path_arr[MAX_PATH];
+            wcsncpy_s(minidump_path_arr, base_path_arr, MAX_PATH);
+            std::filesystem::path minidump_path(minidump_path_arr);
+            minidump_path /= file_name;
+
+            HANDLE hFile = CreateFileW(minidump_path.c_str(), GENERIC_READ | GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
+
+            if (hFile == NULL || hFile == INVALID_HANDLE_VALUE)
+            {
+                wprintf_s(L"CreateFile failed. Error: %u \n", GetLastError());
+            }
+            else
+            {
+                MINIDUMP_EXCEPTION_INFORMATION mdei{};
+                mdei.ThreadId = GetCurrentThreadId();
+                mdei.ExceptionPointers = ExceptionInfo;
+                mdei.ClientPointers = TRUE;
+
+                BOOL success = MiniDumpWriteDump(
+                    GetCurrentProcess(), GetCurrentProcessId(),
+                    hFile, (MINIDUMP_TYPE)(MiniDumpWithFullMemory | MiniDumpWithDataSegs | MiniDumpWithThreadInfo),
+                    ExceptionInfo != 0 ? &mdei : 0, 0, 0);
+
+                if (success)
+                    swprintf_s(pszMessage, L"Minidump created.\n");
+                else
+                    swprintf_s(pszMessage, L"MiniDumpWriteDump failed. Error: %u\n", GetLastError());
+
+                MessageBox(NULL, pszMessage, L"Dalamud", MB_OK | MB_ICONINFORMATION | MB_TOPMOST);
+
+                // Close the file 
+                CloseHandle(hFile);
+            }
+
+            #pragma endregion
+        }
+
+        exit(-1);
+    }
+
+    PCONTEXT Context;
+    Context = ExceptionInfo->ContextRecord;
+    Context->Rip++;
+
+    return EXCEPTION_CONTINUE_EXECUTION;
+}
+
 
 DllExport DWORD WINAPI Initialize(LPVOID lpParam)
 {
@@ -19,14 +155,14 @@ DllExport DWORD WINAPI Initialize(LPVOID lpParam)
     std::filesystem::path fs_module_path(_module_path);
 
     std::wstring runtimeconfig_path = _wcsdup(fs_module_path.replace_filename(L"Dalamud.runtimeconfig.json").c_str());
-    std::wstring module_path = _wcsdup(fs_module_path.replace_filename(L"Dalamud.dll").c_str());
+    std::wstring base_path = _wcsdup(fs_module_path.replace_filename(L"Dalamud.dll").c_str());
 
     // =========================================================================== //
 
     void* entrypoint_vfn;
     int result = InitializeClrAndGetEntryPoint(
         runtimeconfig_path,
-        module_path,
+        base_path,
         L"Dalamud.EntryPoint, Dalamud",
         L"Initialize",
         L"Dalamud.EntryPoint+InitDelegate, Dalamud",
@@ -38,6 +174,10 @@ DllExport DWORD WINAPI Initialize(LPVOID lpParam)
     typedef void (CORECLR_DELEGATE_CALLTYPE* custom_component_entry_point_fn)(LPVOID);
     custom_component_entry_point_fn entrypoint_fn = reinterpret_cast<custom_component_entry_point_fn>(entrypoint_vfn);
 
+    printf("Initializing exception handler...");
+    //AddVectoredExceptionHandler(99, VectoredHandler);
+    printf("Done!\n");
+
     printf("Initializing Dalamud... ");
     entrypoint_fn(lpParam);
     printf("Done!\n");