Function HandleException

TombEngine/Specific/winmain.cpp:310–412

}

LONG WINAPI HandleException(EXCEPTION_POINTERS* exceptionInfo)
{
	DWORD code = exceptionInfo->ExceptionRecord->ExceptionCode;
	const char* codeName = "Unknown exception";

	// Map exception codes to strings.
	switch (code)
	{
		case EXCEPTION_ACCESS_VIOLATION:         codeName = "Access violation"; break;
		case EXCEPTION_ARRAY_BOUNDS_EXCEEDED:    codeName = "Array out of bounds"; break;
		case EXCEPTION_BREAKPOINT:               codeName = "Breakpoint encountered"; break;
		case EXCEPTION_DATATYPE_MISALIGNMENT:    codeName = "Data type misalignment"; break;
		case EXCEPTION_FLT_DIVIDE_BY_ZERO:       codeName = "Floating-point division by zero"; break;
		case EXCEPTION_FLT_OVERFLOW:             codeName = "Floating-point overflow"; break;
		case EXCEPTION_ILLEGAL_INSTRUCTION:      codeName = "Illegal instruction"; break;
		case EXCEPTION_IN_PAGE_ERROR:            codeName = "Exception in page error"; break;
		case EXCEPTION_INT_DIVIDE_BY_ZERO:       codeName = "Integer division by zero"; break;
		case EXCEPTION_INT_OVERFLOW:             codeName = "Integer overflow"; break;
		case EXCEPTION_INVALID_DISPOSITION:      codeName = "Invalid disposition"; break;
		case EXCEPTION_NONCONTINUABLE_EXCEPTION: codeName = "Non-continuable exception"; break;
		case EXCEPTION_PRIV_INSTRUCTION:         codeName = "Private instruction exception"; break;
		case EXCEPTION_SINGLE_STEP:              codeName = "Single-step exception"; break;
		case EXCEPTION_STACK_OVERFLOW:           codeName = "Stack overflow"; break;
	}

	// Try to resolve symbol name from address.
	HANDLE process = GetCurrentProcess();
	SymInitialize(process, NULL, TRUE);

	DWORD64 address = (DWORD64)exceptionInfo->ExceptionRecord->ExceptionAddress;
	char symbolBuffer[sizeof(SYMBOL_INFO) + MAX_SYM_NAME];
	PSYMBOL_INFO symbol = (PSYMBOL_INFO)symbolBuffer;
	symbol->SizeOfStruct = sizeof(SYMBOL_INFO);
	symbol->MaxNameLen = MAX_SYM_NAME;

	// Display function name, if debug symbols are available, otherwise display address only.
	std::ostringstream oss;
	if (SymFromAddr(process, address, 0, symbol))
	{
		oss << "address " << symbol->Name << " (0x" << std::hex << address << ")";
	}
	else
	{
		oss << "address 0x" << std::hex << address;
	}

	auto errorMessage = "Unhandled exception: " + std::string(codeName) + " at " + oss.str() + ".";

	// Log the exception and show error message.
	TENLog(errorMessage, LogLevel::Error);

	// Optionally print stack trace, if engine is in debug mode.
	if (DebugMode)
	{
		oss = std::ostringstream{};
		oss << "Stack trace:\n";

		CONTEXT ctx = *exceptionInfo->ContextRecord;