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#include "pch.h"
#include "crashhandler.h"
#include "dedicated.h"
#include "nsprefix.h"
#include <minidumpapiset.h>
HANDLE hExceptionFilter;
long __stdcall ExceptionFilter(EXCEPTION_POINTERS* exceptionInfo)
{
static bool logged = false;
if (logged)
return EXCEPTION_CONTINUE_SEARCH;
if (!IsDebuggerPresent())
{
const DWORD exceptionCode = exceptionInfo->ExceptionRecord->ExceptionCode;
if (exceptionCode != EXCEPTION_ACCESS_VIOLATION && exceptionCode != EXCEPTION_ARRAY_BOUNDS_EXCEEDED &&
exceptionCode != EXCEPTION_DATATYPE_MISALIGNMENT && exceptionCode != EXCEPTION_FLT_DENORMAL_OPERAND &&
exceptionCode != EXCEPTION_FLT_DIVIDE_BY_ZERO && exceptionCode != EXCEPTION_FLT_INEXACT_RESULT &&
exceptionCode != EXCEPTION_FLT_INVALID_OPERATION && exceptionCode != EXCEPTION_FLT_OVERFLOW &&
exceptionCode != EXCEPTION_FLT_STACK_CHECK && exceptionCode != EXCEPTION_FLT_UNDERFLOW &&
exceptionCode != EXCEPTION_ILLEGAL_INSTRUCTION && exceptionCode != EXCEPTION_IN_PAGE_ERROR &&
exceptionCode != EXCEPTION_INT_DIVIDE_BY_ZERO && exceptionCode != EXCEPTION_INT_OVERFLOW &&
exceptionCode != EXCEPTION_INVALID_DISPOSITION && exceptionCode != EXCEPTION_NONCONTINUABLE_EXCEPTION &&
exceptionCode != EXCEPTION_PRIV_INSTRUCTION && exceptionCode != EXCEPTION_STACK_OVERFLOW)
return EXCEPTION_CONTINUE_SEARCH;
std::stringstream exceptionCause;
exceptionCause << "Cause: ";
switch (exceptionCode)
{
case EXCEPTION_ACCESS_VIOLATION:
case EXCEPTION_IN_PAGE_ERROR:
{
exceptionCause << "Access Violation" << std::endl;
auto exceptionInfo0 = exceptionInfo->ExceptionRecord->ExceptionInformation[0];
auto exceptionInfo1 = exceptionInfo->ExceptionRecord->ExceptionInformation[1];
if (!exceptionInfo0)
exceptionCause << "Attempted to read from: 0x" << (void*)exceptionInfo1;
else if (exceptionInfo0 == 1)
exceptionCause << "Attempted to write to: 0x" << (void*)exceptionInfo1;
else if (exceptionInfo0 == 8)
exceptionCause << "Data Execution Prevention (DEP) at: 0x" << (void*)std::hex << exceptionInfo1;
else
exceptionCause << "Unknown access violation at: 0x" << (void*)exceptionInfo1;
break;
}
case EXCEPTION_ARRAY_BOUNDS_EXCEEDED:
exceptionCause << "Array bounds exceeded";
break;
case EXCEPTION_DATATYPE_MISALIGNMENT:
exceptionCause << "Datatype misalignment";
break;
case EXCEPTION_FLT_DENORMAL_OPERAND:
exceptionCause << "Denormal operand";
break;
case EXCEPTION_FLT_DIVIDE_BY_ZERO:
exceptionCause << "Divide by zero (float)";
break;
case EXCEPTION_INT_DIVIDE_BY_ZERO:
exceptionCause << "Divide by zero (int)";
break;
case EXCEPTION_FLT_INEXACT_RESULT:
exceptionCause << "Inexact result";
break;
case EXCEPTION_FLT_INVALID_OPERATION:
exceptionCause << "Invalid operation";
break;
case EXCEPTION_FLT_OVERFLOW:
case EXCEPTION_INT_OVERFLOW:
exceptionCause << "Numeric overflow";
break;
case EXCEPTION_FLT_UNDERFLOW:
exceptionCause << "Numeric underflow";
break;
case EXCEPTION_FLT_STACK_CHECK:
exceptionCause << "Stack check";
break;
case EXCEPTION_ILLEGAL_INSTRUCTION:
exceptionCause << "Illegal instruction";
break;
case EXCEPTION_INVALID_DISPOSITION:
exceptionCause << "Invalid disposition";
break;
case EXCEPTION_NONCONTINUABLE_EXCEPTION:
exceptionCause << "Noncontinuable exception";
break;
case EXCEPTION_PRIV_INSTRUCTION:
exceptionCause << "Priviledged instruction";
break;
case EXCEPTION_STACK_OVERFLOW:
exceptionCause << "Stack overflow";
break;
default:
exceptionCause << "Unknown";
break;
}
void* exceptionAddress = exceptionInfo->ExceptionRecord->ExceptionAddress;
HMODULE crashedModuleHandle;
GetModuleHandleExA(GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS, static_cast<LPCSTR>(exceptionAddress), &crashedModuleHandle);
MODULEINFO crashedModuleInfo;
GetModuleInformation(GetCurrentProcess(), crashedModuleHandle, &crashedModuleInfo, sizeof(crashedModuleInfo));
char crashedModuleFullName[MAX_PATH];
GetModuleFileNameExA(GetCurrentProcess(), crashedModuleHandle, crashedModuleFullName, MAX_PATH);
char* crashedModuleName = strrchr(crashedModuleFullName, '\\') + 1;
DWORD64 crashedModuleOffset = ((DWORD64)exceptionAddress) - ((DWORD64)crashedModuleInfo.lpBaseOfDll);
CONTEXT* exceptionContext = exceptionInfo->ContextRecord;
spdlog::error("Northstar has crashed! a minidump has been written and exception info is available below:");
spdlog::error(exceptionCause.str());
spdlog::error("At: {} + {}", crashedModuleName, (void*)crashedModuleOffset);
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;
}
}
void* actualAddress = (void*)framesToCapture[i];
void* relativeAddress = (void*)(uintptr_t(actualAddress) - uintptr_t(backtraceModuleHandle));
spdlog::error(" {} + {} ({})", backtraceModuleName, relativeAddress, actualAddress);
}
spdlog::error("RAX: 0x{0:x}", exceptionContext->Rax);
spdlog::error("RBX: 0x{0:x}", exceptionContext->Rbx);
spdlog::error("RCX: 0x{0:x}", exceptionContext->Rcx);
spdlog::error("RDX: 0x{0:x}", exceptionContext->Rdx);
spdlog::error("RSI: 0x{0:x}", exceptionContext->Rsi);
spdlog::error("RDI: 0x{0:x}", exceptionContext->Rdi);
spdlog::error("RBP: 0x{0:x}", exceptionContext->Rbp);
spdlog::error("RSP: 0x{0:x}", exceptionContext->Rsp);
spdlog::error("R8: 0x{0:x}", exceptionContext->R8);
spdlog::error("R9: 0x{0:x}", exceptionContext->R9);
spdlog::error("R10: 0x{0:x}", exceptionContext->R10);
spdlog::error("R11: 0x{0:x}", exceptionContext->R11);
spdlog::error("R12: 0x{0:x}", exceptionContext->R12);
spdlog::error("R13: 0x{0:x}", exceptionContext->R13);
spdlog::error("R14: 0x{0:x}", exceptionContext->R14);
spdlog::error("R15: 0x{0:x}", exceptionContext->R15);
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());
if (!IsDedicatedServer())
MessageBoxA(
0, "Northstar has crashed! Crash info can be found in R2Northstar/logs", "Northstar has crashed!", MB_ICONERROR | MB_OK);
}
logged = true;
return EXCEPTION_EXECUTE_HANDLER;
}
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);
}
void RemoveCrashHandler()
{
RemoveVectoredExceptionHandler(hExceptionFilter);
}
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