diff options
Diffstat (limited to 'NorthstarDLL/crashhandler.cpp')
| -rw-r--r-- | NorthstarDLL/crashhandler.cpp | 376 |
1 files changed, 0 insertions, 376 deletions
diff --git a/NorthstarDLL/crashhandler.cpp b/NorthstarDLL/crashhandler.cpp deleted file mode 100644 index be09f870..00000000 --- a/NorthstarDLL/crashhandler.cpp +++ /dev/null @@ -1,376 +0,0 @@ -#include "pch.h" -#include "crashhandler.h" -#include "dedicated.h" -#include "nsprefix.h" -#include "version.h" -#include "modmanager.h" - -#include <minidumpapiset.h> - -HANDLE hExceptionFilter; - -std::shared_ptr<ExceptionLog> storedException {}; - -#define RUNTIME_EXCEPTION 3765269347 -// clang format did this :/ -std::map<int, std::string> ExceptionNames = { - {EXCEPTION_ACCESS_VIOLATION, "Access Violation"}, {EXCEPTION_IN_PAGE_ERROR, "Access Violation"}, - {EXCEPTION_ARRAY_BOUNDS_EXCEEDED, "Array bounds exceeded"}, {EXCEPTION_DATATYPE_MISALIGNMENT, "Datatype misalignment"}, - {EXCEPTION_FLT_DENORMAL_OPERAND, "Denormal operand"}, {EXCEPTION_FLT_DIVIDE_BY_ZERO, "Divide by zero (float)"}, - {EXCEPTION_FLT_INEXACT_RESULT, "Inexact float result"}, {EXCEPTION_FLT_INVALID_OPERATION, "Invalid operation"}, - {EXCEPTION_FLT_OVERFLOW, "Numeric overflow (float)"}, {EXCEPTION_FLT_STACK_CHECK, "Stack check"}, - {EXCEPTION_FLT_UNDERFLOW, "Numeric underflow (float)"}, {EXCEPTION_ILLEGAL_INSTRUCTION, "Illegal instruction"}, - {EXCEPTION_INT_DIVIDE_BY_ZERO, "Divide by zero (int)"}, {EXCEPTION_INT_OVERFLOW, "Numeric overfloat (int)"}, - {EXCEPTION_INVALID_DISPOSITION, "Invalid disposition"}, {EXCEPTION_NONCONTINUABLE_EXCEPTION, "Non-continuable exception"}, - {EXCEPTION_PRIV_INSTRUCTION, "Priviledged instruction"}, {EXCEPTION_STACK_OVERFLOW, "Stack overflow"}, - {RUNTIME_EXCEPTION, "Uncaught runtime exception:"}, -}; - -void PrintExceptionLog(ExceptionLog& exc) -{ - // General crash message - spdlog::error("Northstar version: {}", version); - spdlog::error("Northstar has crashed! a minidump has been written and exception info is available below:"); - if (g_pModManager) - { - spdlog::error("Loaded mods: "); - for (const auto& mod : g_pModManager->m_LoadedMods) - { - if (mod.m_bEnabled) - { - spdlog::error("{} {}", mod.Name, mod.Version); - } - } - } - spdlog::error(exc.cause); - // If this was a runtime error, print the message - if (exc.runtimeInfo.length() != 0) - spdlog::error("\"{}\"", exc.runtimeInfo); - spdlog::error("At: {} + {}", exc.trace[0].name, exc.trace[0].relativeAddress); - spdlog::error(""); - spdlog::error("Stack trace:"); - - // Generate format string for stack trace - std::stringstream formatString; - formatString << " {:<" << exc.longestModuleNameLength + 2 << "} {:<" << exc.longestRelativeAddressLength << "} {}"; - std::string guide = fmt::format(formatString.str(), "Module Name", "Offset", "Full Address"); - std::string line(guide.length() + 2, '-'); - spdlog::error(guide); - spdlog::error(line); - - for (const auto& module : exc.trace) - spdlog::error(formatString.str(), module.name, module.relativeAddress, module.address); - - // Print dump of most CPU registers - spdlog::error(""); - for (const auto& reg : exc.registerDump) - spdlog::error(reg); - - if (!IsDedicatedServer()) - MessageBoxA( - 0, - "Northstar has crashed! Crash info can be found in R2Northstar/logs", - "Northstar has crashed!", - MB_ICONERROR | MB_OK | MB_SYSTEMMODAL); -} - -std::string GetExceptionName(ExceptionLog& exc) -{ - const DWORD exceptionCode = exc.exceptionRecord.ExceptionCode; - auto name = ExceptionNames[exceptionCode]; - if (exceptionCode == EXCEPTION_ACCESS_VIOLATION || exceptionCode == EXCEPTION_IN_PAGE_ERROR) - { - std::stringstream returnString; - returnString << name << ": "; - - auto exceptionInfo0 = exc.exceptionRecord.ExceptionInformation[0]; - auto exceptionInfo1 = exc.exceptionRecord.ExceptionInformation[1]; - - if (!exceptionInfo0) - returnString << "Attempted to read from: 0x" << (void*)exceptionInfo1; - else if (exceptionInfo0 == 1) - returnString << "Attempted to write to: 0x" << (void*)exceptionInfo1; - else if (exceptionInfo0 == 8) - returnString << "Data Execution Prevention (DEP) at: 0x" << (void*)std::hex << exceptionInfo1; - else - returnString << "Unknown access violation at: 0x" << (void*)exceptionInfo1; - return returnString.str(); - } - return name; -} - -// Custom formatter for the Xmm registers -template <> struct fmt::formatter<M128A> : fmt::formatter<string_view> -{ - template <typename FormatContext> auto format(const M128A& obj, FormatContext& ctx) - { - // Masking the top and bottom half of the long long - int v1 = obj.Low & INT_MAX; - int v2 = obj.Low >> 32; - int v3 = obj.High & INT_MAX; - int v4 = obj.High >> 32; - return fmt::format_to( - ctx.out(), - "[ {:G}, {:G}, {:G}, {:G}], [ 0x{:x}, 0x{:x}, 0x{:x}, 0x{:x} ]", - *reinterpret_cast<float*>(&v1), - *reinterpret_cast<float*>(&v2), - *reinterpret_cast<float*>(&v3), - *reinterpret_cast<float*>(&v4), - v1, - v2, - v3, - v4); - } -}; - -void GenerateTrace(ExceptionLog& exc, bool skipErrorHandlingFrames = true, int numSkipFrames = 0) -{ - - MODULEINFO crashedModuleInfo; - GetModuleInformation(GetCurrentProcess(), exc.crashedModule, &crashedModuleInfo, sizeof(crashedModuleInfo)); - - char crashedModuleFullName[MAX_PATH]; - GetModuleFileNameExA(GetCurrentProcess(), exc.crashedModule, crashedModuleFullName, MAX_PATH); - char* crashedModuleName = strrchr(crashedModuleFullName, '\\') + 1; - - DWORD64 crashedModuleOffset = ((DWORD64)exc.exceptionRecord.ExceptionAddress) - ((DWORD64)crashedModuleInfo.lpBaseOfDll); - - PVOID framesToCapture[62]; - int frames = RtlCaptureStackBackTrace(0, 62, framesToCapture, NULL); - bool haveSkippedErrorHandlingFrames = false; - - for (int i = 0; i < frames; i++) - { - - HMODULE backtraceModuleHandle; - GetModuleHandleExA(GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS, static_cast<LPCSTR>(framesToCapture[i]), &backtraceModuleHandle); - - char backtraceModuleFullName[MAX_PATH]; - GetModuleFileNameExA(GetCurrentProcess(), backtraceModuleHandle, backtraceModuleFullName, MAX_PATH); - char* backtraceModuleName = strrchr(backtraceModuleFullName, '\\') + 1; - - if (!haveSkippedErrorHandlingFrames) - { - if (!strncmp(backtraceModuleFullName, crashedModuleFullName, MAX_PATH) && - !strncmp(backtraceModuleName, crashedModuleName, MAX_PATH)) - { - haveSkippedErrorHandlingFrames = true; - } - else - { - continue; - } - } - - if (numSkipFrames > 0) - { - numSkipFrames--; - continue; - } - - void* actualAddress = (void*)framesToCapture[i]; - void* relativeAddress = (void*)(uintptr_t(actualAddress) - uintptr_t(backtraceModuleHandle)); - std::string s_moduleName {backtraceModuleName}; - std::string s_relativeAddress {fmt::format("{}", relativeAddress)}; - // These are used for formatting later on - if (s_moduleName.length() > exc.longestModuleNameLength) - { - exc.longestModuleNameLength = s_moduleName.length(); - } - if (s_relativeAddress.length() > exc.longestRelativeAddressLength) - { - exc.longestRelativeAddressLength = s_relativeAddress.length(); - } - - exc.trace.push_back(BacktraceModule {s_moduleName, s_relativeAddress, fmt::format("{}", actualAddress)}); - } - - CONTEXT* exceptionContext = &exc.contextRecord; - - exc.registerDump.push_back(fmt::format("Flags: 0b{0:b}", exceptionContext->ContextFlags)); - exc.registerDump.push_back(fmt::format("RIP: 0x{0:x}", exceptionContext->Rip)); - exc.registerDump.push_back(fmt::format("CS : 0x{0:x}", exceptionContext->SegCs)); - exc.registerDump.push_back(fmt::format("DS : 0x{0:x}", exceptionContext->SegDs)); - exc.registerDump.push_back(fmt::format("ES : 0x{0:x}", exceptionContext->SegEs)); - exc.registerDump.push_back(fmt::format("SS : 0x{0:x}", exceptionContext->SegSs)); - exc.registerDump.push_back(fmt::format("FS : 0x{0:x}", exceptionContext->SegFs)); - exc.registerDump.push_back(fmt::format("GS : 0x{0:x}", exceptionContext->SegGs)); - - exc.registerDump.push_back(fmt::format("RAX: 0x{0:x}", exceptionContext->Rax)); - exc.registerDump.push_back(fmt::format("RBX: 0x{0:x}", exceptionContext->Rbx)); - exc.registerDump.push_back(fmt::format("RCX: 0x{0:x}", exceptionContext->Rcx)); - exc.registerDump.push_back(fmt::format("RDX: 0x{0:x}", exceptionContext->Rdx)); - exc.registerDump.push_back(fmt::format("RSI: 0x{0:x}", exceptionContext->Rsi)); - exc.registerDump.push_back(fmt::format("RDI: 0x{0:x}", exceptionContext->Rdi)); - exc.registerDump.push_back(fmt::format("RBP: 0x{0:x}", exceptionContext->Rbp)); - exc.registerDump.push_back(fmt::format("RSP: 0x{0:x}", exceptionContext->Rsp)); - exc.registerDump.push_back(fmt::format("R8 : 0x{0:x}", exceptionContext->R8)); - exc.registerDump.push_back(fmt::format("R9 : 0x{0:x}", exceptionContext->R9)); - exc.registerDump.push_back(fmt::format("R10: 0x{0:x}", exceptionContext->R10)); - exc.registerDump.push_back(fmt::format("R11: 0x{0:x}", exceptionContext->R11)); - exc.registerDump.push_back(fmt::format("R12: 0x{0:x}", exceptionContext->R12)); - exc.registerDump.push_back(fmt::format("R13: 0x{0:x}", exceptionContext->R13)); - exc.registerDump.push_back(fmt::format("R14: 0x{0:x}", exceptionContext->R14)); - exc.registerDump.push_back(fmt::format("R15: 0x{0:x}", exceptionContext->R15)); - - exc.registerDump.push_back(fmt::format("Xmm0 : {}", exceptionContext->Xmm0)); - exc.registerDump.push_back(fmt::format("Xmm1 : {}", exceptionContext->Xmm1)); - exc.registerDump.push_back(fmt::format("Xmm2 : {}", exceptionContext->Xmm2)); - exc.registerDump.push_back(fmt::format("Xmm3 : {}", exceptionContext->Xmm3)); - exc.registerDump.push_back(fmt::format("Xmm4 : {}", exceptionContext->Xmm4)); - exc.registerDump.push_back(fmt::format("Xmm5 : {}", exceptionContext->Xmm5)); - exc.registerDump.push_back(fmt::format("Xmm6 : {}", exceptionContext->Xmm6)); - exc.registerDump.push_back(fmt::format("Xmm7 : {}", exceptionContext->Xmm7)); - exc.registerDump.push_back(fmt::format("Xmm8 : {}", exceptionContext->Xmm8)); - exc.registerDump.push_back(fmt::format("Xmm9 : {}", exceptionContext->Xmm9)); - exc.registerDump.push_back(fmt::format("Xmm10: {}", exceptionContext->Xmm10)); - exc.registerDump.push_back(fmt::format("Xmm11: {}", exceptionContext->Xmm11)); - exc.registerDump.push_back(fmt::format("Xmm12: {}", exceptionContext->Xmm12)); - exc.registerDump.push_back(fmt::format("Xmm13: {}", exceptionContext->Xmm13)); - exc.registerDump.push_back(fmt::format("Xmm14: {}", exceptionContext->Xmm14)); - exc.registerDump.push_back(fmt::format("Xmm15: {}", exceptionContext->Xmm15)); -} - -void CreateMiniDump(EXCEPTION_POINTERS* exceptionInfo) -{ - time_t time = std::time(nullptr); - tm currentTime = *std::localtime(&time); - std::stringstream stream; - stream << std::put_time(¤tTime, (GetNorthstarPrefix() + "/logs/nsdump%Y-%m-%d %H-%M-%S.dmp").c_str()); - - auto hMinidumpFile = CreateFileA(stream.str().c_str(), GENERIC_WRITE, FILE_SHARE_READ, 0, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, 0); - if (hMinidumpFile) - { - MINIDUMP_EXCEPTION_INFORMATION dumpExceptionInfo; - dumpExceptionInfo.ThreadId = GetCurrentThreadId(); - dumpExceptionInfo.ExceptionPointers = exceptionInfo; - dumpExceptionInfo.ClientPointers = false; - - MiniDumpWriteDump( - GetCurrentProcess(), - GetCurrentProcessId(), - hMinidumpFile, - MINIDUMP_TYPE(MiniDumpWithIndirectlyReferencedMemory | MiniDumpScanMemory), - &dumpExceptionInfo, - nullptr, - nullptr); - CloseHandle(hMinidumpFile); - } - else - spdlog::error("Failed to write minidump file {}!", stream.str()); -} - -long GenerateExceptionLog(EXCEPTION_POINTERS* exceptionInfo) -{ - storedException->exceptionRecord = *exceptionInfo->ExceptionRecord; - storedException->contextRecord = *exceptionInfo->ContextRecord; - const DWORD exceptionCode = exceptionInfo->ExceptionRecord->ExceptionCode; - - void* exceptionAddress = exceptionInfo->ExceptionRecord->ExceptionAddress; - - storedException->cause = GetExceptionName(*storedException); - - HMODULE crashedModuleHandle; - GetModuleHandleExA(GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS, static_cast<LPCSTR>(exceptionAddress), &crashedModuleHandle); - - storedException->crashedModule = crashedModuleHandle; - - // When encountering a runtime exception, we store the exception to be displayed later - // We then have to return EXCEPTION_CONTINUE_SEARCH so that our runtime handler may be called - // This might possibly cause some issues if client and server are crashing at the same time, but honestly i don't care - if (exceptionCode == RUNTIME_EXCEPTION) - { - GenerateTrace(*storedException, false, 2); - storedException = storedException; - return EXCEPTION_CONTINUE_SEARCH; - } - - GenerateTrace(*storedException, true, 0); - CreateMiniDump(exceptionInfo); - PrintExceptionLog(*storedException); - return EXCEPTION_EXECUTE_HANDLER; -} - -long __stdcall ExceptionFilter(EXCEPTION_POINTERS* exceptionInfo) -{ - if (!IsDebuggerPresent()) - { - // Check if we are capable of handling this type of exception - if (ExceptionNames.find(exceptionInfo->ExceptionRecord->ExceptionCode) == ExceptionNames.end()) - return EXCEPTION_CONTINUE_SEARCH; - if (exceptionInfo->ExceptionRecord->ExceptionCode == RUNTIME_EXCEPTION) - { - storedException = std::make_shared<ExceptionLog>(); - storedException->exceptionRecord = *exceptionInfo->ExceptionRecord; - storedException->contextRecord = *exceptionInfo->ContextRecord; - } - else - { - CreateMiniDump(exceptionInfo); - return GenerateExceptionLog(exceptionInfo); - } - } - - return EXCEPTION_EXECUTE_HANDLER; -} - -void RuntimeExceptionHandler() -{ - auto ptr = std::current_exception(); - if (ptr) - { - try - { - // This is to generate an actual std::exception object that we can then inspect - std::rethrow_exception(ptr); - } - catch (std::exception& e) - { - storedException->runtimeInfo = e.what(); - } - catch (...) - { - storedException->runtimeInfo = "Unknown runtime exception type"; - } - EXCEPTION_POINTERS test {}; - test.ContextRecord = &storedException->contextRecord; - test.ExceptionRecord = &storedException->exceptionRecord; - CreateMiniDump(&test); - GenerateExceptionLog(&test); - PrintExceptionLog(*storedException); - exit(-1); - } - else - { - spdlog::error( - "std::current_exception() returned nullptr while being handled by RuntimeExceptionHandler. This should never happen!"); - std::abort(); - } -} - -BOOL WINAPI ConsoleHandlerRoutine(DWORD eventCode) -{ - switch (eventCode) - { - case CTRL_CLOSE_EVENT: - // User closed console, shut everything down - spdlog::info("Exiting due to console close..."); - RemoveCrashHandler(); - exit(EXIT_SUCCESS); - return FALSE; - } - - return TRUE; -} - -void InitialiseCrashHandler() -{ - hExceptionFilter = AddVectoredExceptionHandler(TRUE, ExceptionFilter); - SetConsoleCtrlHandler(ConsoleHandlerRoutine, true); - std::set_terminate(RuntimeExceptionHandler); -} - -void RemoveCrashHandler() -{ - RemoveVectoredExceptionHandler(hExceptionFilter); -} |