mirror of
https://github.com/Mauler125/r5sdk.git
synced 2025-02-09 19:15:03 +01:00
665 lines
23 KiB
C++
665 lines
23 KiB
C++
//=============================================================================//
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//
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// Purpose: Crash handler (overrides the game's implementation!)
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//
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//=============================================================================//
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#include "tier0/binstream.h"
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#include "tier0/cpu.h"
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#include "tier0/crashhandler.h"
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//-----------------------------------------------------------------------------
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// Purpose:
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//-----------------------------------------------------------------------------
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void CCrashHandler::Start()
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{
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Lock();
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m_bExceptionHandling = true;
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}
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//-----------------------------------------------------------------------------
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// Purpose:
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//-----------------------------------------------------------------------------
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void CCrashHandler::End()
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{
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m_bExceptionHandling = false;
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Unlock();
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}
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//-----------------------------------------------------------------------------
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// Purpose: formats the crasher (module, address and exception)
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//-----------------------------------------------------------------------------
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void CCrashHandler::FormatCrash()
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{
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m_svBuffer.append("crash:\n{\n");
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FormatExceptionAddress();
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FormatExceptionCode();
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m_svBuffer.append("}\n");
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}
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//-----------------------------------------------------------------------------
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// Purpose: formats the captured callstack
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//-----------------------------------------------------------------------------
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void CCrashHandler::FormatCallstack()
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{
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m_svBuffer.append("callstack:\n{\n");
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if (m_nCapturedFrames)
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{
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PEXCEPTION_RECORD pExceptionRecord = m_pExceptionPointers->ExceptionRecord;
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if (m_ppStackTrace[m_nCapturedFrames - 1] == pExceptionRecord->ExceptionAddress)
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{
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PCONTEXT pContextRecord = m_pExceptionPointers->ContextRecord;
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MEMORY_BASIC_INFORMATION mbi = { 0 };
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SIZE_T t = VirtualQuery((LPCVOID)pContextRecord->Rsp, &mbi, sizeof(LPCVOID));
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if (t >= sizeof(mbi)
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&& !(mbi.Protect & PAGE_NOACCESS)
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&& ((mbi.Protect & PAGE_READONLY) | PAGE_READWRITE)
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&& (mbi.State & MEM_COMMIT))
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{
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m_svBuffer.append("\t// call stack ended; possible return address?\n");
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}
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}
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}
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for (WORD i = 0; i < m_nCapturedFrames; i++)
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{
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FormatExceptionAddress(reinterpret_cast<LPCSTR>(m_ppStackTrace[i]));
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}
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m_svBuffer.append("}\n");
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}
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//-----------------------------------------------------------------------------
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// Purpose: formats all the registers and their contents
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//-----------------------------------------------------------------------------
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void CCrashHandler::FormatRegisters()
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{
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m_svBuffer.append("registers:\n{\n");
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PCONTEXT pContextRecord = m_pExceptionPointers->ContextRecord;
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FormatALU("rax", pContextRecord->Rax);
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FormatALU("rbx", pContextRecord->Rbx);
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FormatALU("rcx", pContextRecord->Rcx);
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FormatALU("rdx", pContextRecord->Rdx);
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FormatALU("rsp", pContextRecord->Rsp);
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FormatALU("rbp", pContextRecord->Rbp);
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FormatALU("rsi", pContextRecord->Rsi);
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FormatALU("rdi", pContextRecord->Rdi);
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FormatALU("r8 ", pContextRecord->R8);
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FormatALU("r9 ", pContextRecord->R9);
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FormatALU("r10", pContextRecord->R10);
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FormatALU("r11", pContextRecord->R11);
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FormatALU("r12", pContextRecord->R12);
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FormatALU("r13", pContextRecord->R13);
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FormatALU("r14", pContextRecord->R14);
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FormatALU("r15", pContextRecord->R15);
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FormatALU("rip", pContextRecord->Rip);
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FormatFPU("xmm0 ", &pContextRecord->Xmm0);
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FormatFPU("xmm1 ", &pContextRecord->Xmm1);
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FormatFPU("xmm2 ", &pContextRecord->Xmm2);
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FormatFPU("xmm3 ", &pContextRecord->Xmm3);
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FormatFPU("xmm4 ", &pContextRecord->Xmm4);
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FormatFPU("xmm5 ", &pContextRecord->Xmm5);
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FormatFPU("xmm6 ", &pContextRecord->Xmm6);
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FormatFPU("xmm7 ", &pContextRecord->Xmm7);
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FormatFPU("xmm8 ", &pContextRecord->Xmm8);
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FormatFPU("xmm9 ", &pContextRecord->Xmm9);
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FormatFPU("xmm10", &pContextRecord->Xmm10);
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FormatFPU("xmm11", &pContextRecord->Xmm11);
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FormatFPU("xmm12", &pContextRecord->Xmm12);
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FormatFPU("xmm13", &pContextRecord->Xmm13);
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FormatFPU("xmm14", &pContextRecord->Xmm14);
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FormatFPU("xmm15", &pContextRecord->Xmm15);
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m_svBuffer.append("}\n");
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}
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//-----------------------------------------------------------------------------
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// Purpose: formats all loaded modules (verbose)
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//-----------------------------------------------------------------------------
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void CCrashHandler::FormatModules()
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{
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m_svBuffer.append("modules:\n{\n");
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std::unique_ptr<HMODULE[]> hModule(new HMODULE[CRASHHANDLER_MAX_MODULES]);
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HANDLE hProcess = GetCurrentProcess();
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DWORD cbNeeded;
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BOOL result = K32EnumProcessModulesEx(hProcess, &*hModule.get(), CRASHHANDLER_MAX_MODULES, &cbNeeded, LIST_MODULES_ALL);
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if (result && cbNeeded <= CRASHHANDLER_MAX_MODULES && cbNeeded >> 3)
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{
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CHAR szModuleName[MAX_FILEPATH];
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LPSTR pszModuleName;
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MODULEINFO modInfo;
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for (DWORD i = 0, j = cbNeeded >> 3; j; i++, j--)
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{
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DWORD m = GetModuleFileNameA(hModule.get()[i], szModuleName, sizeof(szModuleName));
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if ((m - 1) > (sizeof(szModuleName) - 2)) // Too small for buffer.
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{
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snprintf(szModuleName, sizeof(szModuleName), "module@%p", hModule.get()[i]);
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pszModuleName = szModuleName;
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}
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else
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{
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pszModuleName = strrchr(szModuleName, '\\') + 1;
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}
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K32GetModuleInformation(hProcess, &*hModule.get()[i], &modInfo, sizeof(modInfo));
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m_svBuffer.append(Format("\t%-15s: [%p, %p]\n",
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pszModuleName, modInfo.lpBaseOfDll, (reinterpret_cast<uintptr_t>(modInfo.lpBaseOfDll) + modInfo.SizeOfImage)));
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}
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}
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m_svBuffer.append("}\n");
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}
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//-----------------------------------------------------------------------------
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// Purpose: formats the system information
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//-----------------------------------------------------------------------------
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void CCrashHandler::FormatSystemInfo()
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{
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m_svBuffer.append("system:\n{\n");
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const CPUInformation& pi = GetCPUInformation();
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m_svBuffer.append(Format("\tcpu_model = \"%s\"\n", pi.m_szProcessorBrand));
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m_svBuffer.append(Format("\tcpu_speed = %010lld // clock cycles\n", pi.m_Speed));
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for (DWORD i = 0; ; i++)
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{
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DISPLAY_DEVICE dd = { sizeof(dd), {0} };
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BOOL f = EnumDisplayDevices(NULL, i, &dd, EDD_GET_DEVICE_INTERFACE_NAME);
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if (!f)
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{
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break;
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}
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if (dd.StateFlags & DISPLAY_DEVICE_PRIMARY_DEVICE) // The primary device is the only relevant device.
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{
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m_svBuffer.append(Format("\tgpu_model = \"%s\"\n", dd.DeviceString));
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m_svBuffer.append(Format("\tgpu_flags = 0x%08X // primary device\n", dd.StateFlags));
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}
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}
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MEMORYSTATUSEX statex{};
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statex.dwLength = sizeof(statex);
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if (GlobalMemoryStatusEx(&statex))
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{
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m_svBuffer.append(Format("\tram_total = [%010d, %010d] // physical/virtual (MiB)\n", (statex.ullTotalPhys / 1024) / 1024, (statex.ullTotalVirtual / 1024) / 1024));
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m_svBuffer.append(Format("\tram_avail = [%010d, %010d] // physical/virtual (MiB)\n", (statex.ullAvailPhys / 1024) / 1024, (statex.ullAvailVirtual / 1024) / 1024));
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}
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m_svBuffer.append("}\n");
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}
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//-----------------------------------------------------------------------------
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// Purpose: formats the build information
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//-----------------------------------------------------------------------------
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void CCrashHandler::FormatBuildInfo()
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{
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m_svBuffer.append(Format("build_id: %u\n", g_SDKDll.GetNTHeaders()->FileHeader.TimeDateStamp));
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}
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//-----------------------------------------------------------------------------
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// Purpose: formats the module, address and exception
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//-----------------------------------------------------------------------------
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void CCrashHandler::FormatExceptionAddress()
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{
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FormatExceptionAddress(static_cast<LPCSTR>(m_pExceptionPointers->ExceptionRecord->ExceptionAddress));
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}
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//-----------------------------------------------------------------------------
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// Purpose: formats the module, address and exception
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// Input : pExceptionAddress -
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//-----------------------------------------------------------------------------
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void CCrashHandler::FormatExceptionAddress(LPCSTR pExceptionAddress)
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{
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HMODULE hCrashedModule;
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if (!GetModuleHandleExA(GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS | GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT, pExceptionAddress, &hCrashedModule))
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{
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m_svBuffer.append(Format("\t!!!unknown-module!!!: %p\n", pExceptionAddress));
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m_nCrashMsgFlags = 0; // Display the "unknown DLL or EXE" message.
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return;
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}
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LPCSTR pModuleBase = reinterpret_cast<LPCSTR>(pExceptionAddress - reinterpret_cast<LPCSTR>(hCrashedModule));
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CHAR szCrashedModuleFullName[512];
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if (GetModuleFileNameExA(GetCurrentProcess(), hCrashedModule, szCrashedModuleFullName, sizeof(szCrashedModuleFullName)) - 1 > 0x1FE)
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{
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m_svBuffer.append(Format("\tmodule@%p: %p\n", (void*)hCrashedModule, pModuleBase));
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m_nCrashMsgFlags = 2; // Display the "Apex crashed" message without additional information regarding the module.
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return;
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}
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// TODO: REMOVE EXT.
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const CHAR* szCrashedModuleName = strrchr(szCrashedModuleFullName, '\\') + 1;
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m_svBuffer.append(Format("\t%-15s: %p\n", szCrashedModuleName, pModuleBase));
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m_nCrashMsgFlags = 1; // Display the "Apex crashed in <module>" message.
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// Only set it once to the crashing module,
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// empty strings get treated as "unknown
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// DLL or EXE" in the crashmsg executable.
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if (m_svCrashMsgInfo.empty())
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{
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m_svCrashMsgInfo = szCrashedModuleName;
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}
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}
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//-----------------------------------------------------------------------------
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// Purpose: formats the exception code
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//-----------------------------------------------------------------------------
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void CCrashHandler::FormatExceptionCode()
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{
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DWORD nExceptionCode = m_pExceptionPointers->ExceptionRecord->ExceptionCode;
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if (nExceptionCode > EXCEPTION_IN_PAGE_ERROR)
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{
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m_svBuffer.append(Format(ExceptionToString(), nExceptionCode));
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}
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else if (nExceptionCode >= EXCEPTION_ACCESS_VIOLATION)
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{
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const CHAR* pszException = "EXCEPTION_IN_PAGE_ERROR";
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if (nExceptionCode == EXCEPTION_ACCESS_VIOLATION)
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{
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pszException = "EXCEPTION_ACCESS_VIOLATION";
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}
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ULONG_PTR uExceptionInfo0 = m_pExceptionPointers->ExceptionRecord->ExceptionInformation[0];
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ULONG_PTR uExceptionInfo1 = m_pExceptionPointers->ExceptionRecord->ExceptionInformation[1];
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if (uExceptionInfo0)
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{
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if (uExceptionInfo0 == 1)
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{
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m_svBuffer.append(Format("\t%s(write): %p\n", pszException, uExceptionInfo1));
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}
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else if (uExceptionInfo0 == 8)
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{
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m_svBuffer.append(Format("\t%s(execute): %p\n", pszException, uExceptionInfo1));
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}
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else
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{
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m_svBuffer.append(Format("\t%s(unknown): %p\n", pszException, uExceptionInfo1));
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}
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}
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else
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{
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m_svBuffer.append(Format("\t%s(read): %p\n", pszException, uExceptionInfo1));
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}
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if (uExceptionInfo0 != 8)
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{
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if (IsPageAccessible())
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{
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FormatExceptionAddress();
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}
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}
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}
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else
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{
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m_svBuffer.append(Format(ExceptionToString(), nExceptionCode));
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}
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}
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//-----------------------------------------------------------------------------
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// Purpose: formats the arithmetic logic register and its content
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// Input : *pszRegister -
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// nContent -
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//-----------------------------------------------------------------------------
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void CCrashHandler::FormatALU(const CHAR* pszRegister, DWORD64 nContent)
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{
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if (nContent >= 1000000)
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{
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if (nContent > UINT_MAX)
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{
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// Print the full 64bits of the register.
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m_svBuffer.append(Format("\t%s = 0x%016llX\n", pszRegister, nContent));
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}
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else
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{
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m_svBuffer.append(Format("\t%s = 0x%08X\n", pszRegister, nContent));
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}
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}
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else if (nContent >= 10)
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{
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// Print as decimal with a hexadecimal comment.
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m_svBuffer.append(Format("\t%s = %-6i // 0x%08X\n", pszRegister, nContent, nContent));
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}
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else
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{
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// Print as decimal only.
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m_svBuffer.append(Format("\t%s = %-10i\n", pszRegister, nContent));
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}
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}
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//-----------------------------------------------------------------------------
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// Purpose: formats the floating point register and its content
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// Input : *pszRegister -
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// *pxContent -
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//-----------------------------------------------------------------------------
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void CCrashHandler::FormatFPU(const CHAR* pszRegister, M128A* pxContent)
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{
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DWORD nVec[4] =
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{
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static_cast<DWORD>(pxContent->Low & UINT_MAX),
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static_cast<DWORD>(pxContent->Low >> 32),
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static_cast<DWORD>(pxContent->High & UINT_MAX),
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static_cast<DWORD>(pxContent->High >> 32),
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};
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m_svBuffer.append(Format("\t%s = [ [%.8g, %.8g, %.8g, %.8g]", pszRegister,
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*reinterpret_cast<FLOAT*>(&nVec[0]),
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*reinterpret_cast<FLOAT*>(&nVec[1]),
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*reinterpret_cast<FLOAT*>(&nVec[2]),
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*reinterpret_cast<FLOAT*>(&nVec[3])));
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const CHAR* pszVectorFormat = ", [%i, %i, %i, %i] ]\n";
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const LONG nHighest = abs(LONG(*MaxElementABS(std::begin(nVec), std::end(nVec))));
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if (nHighest >= 1000000)
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{
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pszVectorFormat = ", [0x%08X, 0x%08X, 0x%08X, 0x%08X] ]\n";
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m_svBuffer.append(Format(pszVectorFormat, nVec[0], nVec[1], nVec[2], nVec[3]));
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}
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else
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{
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m_svBuffer.append(Format(pszVectorFormat,
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static_cast<LONG>(nVec[0]), static_cast<LONG>(nVec[1]),
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static_cast<LONG>(nVec[2]), static_cast<LONG>(nVec[3])));
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}
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}
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//-----------------------------------------------------------------------------
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// Purpose: returns the current exception code as string
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// Output : exception code, "UNKNOWN_EXCEPTION" if exception code doesn't exist in this context
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//-----------------------------------------------------------------------------
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const CHAR* CCrashHandler::ExceptionToString(DWORD nExceptionCode) const
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{
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switch (nExceptionCode)
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{
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case EXCEPTION_BREAKPOINT: { return "\tEXCEPTION_BREAKPOINT" ": %08X\n"; };
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case EXCEPTION_SINGLE_STEP: { return "\tEXCEPTION_SINGLE_STEP" ": %08X\n"; };
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case EXCEPTION_ACCESS_VIOLATION: { return "\tEXCEPTION_ACCESS_VIOLATION" ": %08X\n"; };
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case EXCEPTION_IN_PAGE_ERROR: { return "\tEXCEPTION_IN_PAGE_ERROR" ": %08X\n"; };
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case EXCEPTION_ARRAY_BOUNDS_EXCEEDED: { return "\tEXCEPTION_ARRAY_BOUNDS_EXCEEDED" ": %08X\n"; };
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case EXCEPTION_ILLEGAL_INSTRUCTION: { return "\tEXCEPTION_ILLEGAL_INSTRUCTION" ": %08X\n"; };
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case EXCEPTION_INVALID_DISPOSITION: { return "\tEXCEPTION_INVALID_DISPOSITION" ": %08X\n"; };
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case EXCEPTION_NONCONTINUABLE_EXCEPTION: { return "\tEXCEPTION_NONCONTINUABLE_EXCEPTION" ": %08X\n"; };
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case EXCEPTION_PRIV_INSTRUCTION: { return "\tEXCEPTION_PRIV_INSTRUCTION" ": %08X\n"; };
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case EXCEPTION_STACK_OVERFLOW: { return "\tEXCEPTION_STACK_OVERFLOW" ": %08X\n"; };
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case EXCEPTION_DATATYPE_MISALIGNMENT: { return "\tEXCEPTION_DATATYPE_MISALIGNMENT" ": %08X\n"; };
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case EXCEPTION_FLT_DENORMAL_OPERAND: { return "\tEXCEPTION_FLT_DENORMAL_OPERAND" ": %08X\n"; };
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case EXCEPTION_FLT_DIVIDE_BY_ZERO: { return "\tEXCEPTION_FLT_DIVIDE_BY_ZERO" ": %08X\n"; };
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case EXCEPTION_FLT_INEXACT_RESULT: { return "\tEXCEPTION_FLT_INEXACT_RESULT" ": %08X\n"; };
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case EXCEPTION_FLT_INVALID_OPERATION: { return "\tEXCEPTION_FLT_INVALID_OPERATION" ": %08X\n"; };
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case EXCEPTION_FLT_OVERFLOW: { return "\tEXCEPTION_FLT_OVERFLOW" ": %08X\n"; };
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case EXCEPTION_FLT_STACK_CHECK: { return "\tEXCEPTION_FLT_STACK_CHECK" ": %08X\n"; };
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case EXCEPTION_FLT_UNDERFLOW: { return "\tEXCEPTION_FLT_UNDERFLOW" ": %08X\n"; };
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case EXCEPTION_INT_DIVIDE_BY_ZERO: { return "\tEXCEPTION_INT_DIVIDE_BY_ZERO" ": %08X\n"; };
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case EXCEPTION_INT_OVERFLOW: { return "\tEXCEPTION_INT_OVERFLOW" ": %08X\n"; };
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default: { return "\tUNKNOWN_EXCEPTION" ": %08X\n"; };
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}
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}
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//-----------------------------------------------------------------------------
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// Purpose: returns the current exception code as string
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//-----------------------------------------------------------------------------
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const char* CCrashHandler::ExceptionToString() const
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{
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return ExceptionToString(m_pExceptionPointers->ExceptionRecord->ExceptionCode);
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}
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//-----------------------------------------------------------------------------
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// Purpose: tests if memory page is accessible
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// Output : true if accessible, false otherwise
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//-----------------------------------------------------------------------------
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bool CCrashHandler::IsPageAccessible() const
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{
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PCONTEXT pContextRecord = m_pExceptionPointers->ContextRecord;
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MEMORY_BASIC_INFORMATION mbi = { 0 };
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SIZE_T t = VirtualQuery((LPCVOID)pContextRecord->Rsp, &mbi, sizeof(LPCVOID));
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if (t < sizeof(mbi) || (mbi.Protect & PAGE_NOACCESS) || !((mbi.Protect & PAGE_NOACCESS) | PAGE_READWRITE))
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{
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return false;
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}
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else
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{
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return !(mbi.State & MEM_COMMIT);
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}
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}
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//-----------------------------------------------------------------------------
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// Purpose: captures the callstack
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//-----------------------------------------------------------------------------
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void CCrashHandler::GetCallStack()
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{
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m_nCapturedFrames = RtlCaptureStackBackTrace(2, NUM_FRAMES_TO_CAPTURE, m_ppStackTrace, NULL);
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}
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//-----------------------------------------------------------------------------
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// Purpose: adds a whitelist exception address
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//-----------------------------------------------------------------------------
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void CCrashHandler::AddWhitelist(void* pWhitelist)
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{
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m_WhiteList.insert(pWhitelist);
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}
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//-----------------------------------------------------------------------------
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// Purpose: removes a whitelist exception address
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//-----------------------------------------------------------------------------
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void CCrashHandler::RemoveWhitelist(void* pWhitelist)
|
|
{
|
|
m_WhiteList.erase(pWhitelist);
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose: checks if callstack contains whitelisted addresses up to 'MAX_IMI_SEARCH' frames.
|
|
// Output : true is exist, false otherwise
|
|
//-----------------------------------------------------------------------------
|
|
bool CCrashHandler::HasWhitelist()
|
|
{
|
|
for (WORD i = 0; i < NUM_FRAMES_TO_SEARCH; i++)
|
|
{
|
|
if (m_WhiteList.count(m_ppStackTrace[i]))
|
|
{
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose: writes the stack trace and minidump to the disk
|
|
//-----------------------------------------------------------------------------
|
|
void CCrashHandler::WriteFile()
|
|
{
|
|
const string logDirectory = Format("%s\\%s.txt", g_LogSessionDirectory.c_str(), "apex_crash");
|
|
CIOStream logFile;
|
|
|
|
if (logFile.Open(logDirectory, CIOStream::Mode_t::WRITE))
|
|
{
|
|
logFile.WriteString(m_svBuffer);
|
|
}
|
|
|
|
const string dmpDirectory = Format("%s\\%s.dmp", g_LogSessionDirectory.c_str(), "minidump");
|
|
HANDLE hDmpFile = CreateFileA(dmpDirectory.c_str(), GENERIC_WRITE, 0, 0, CREATE_NEW, FILE_ATTRIBUTE_NORMAL, 0);
|
|
|
|
if (hDmpFile != INVALID_HANDLE_VALUE)
|
|
{
|
|
MINIDUMP_EXCEPTION_INFORMATION dumpExceptionInfo;
|
|
dumpExceptionInfo.ThreadId = GetCurrentThreadId();
|
|
dumpExceptionInfo.ExceptionPointers = m_pExceptionPointers;
|
|
dumpExceptionInfo.ClientPointers = false;
|
|
|
|
MiniDumpWriteDump(
|
|
GetCurrentProcess(),
|
|
GetCurrentProcessId(),
|
|
hDmpFile, MiniDumpNormal,
|
|
&dumpExceptionInfo, NULL, NULL);
|
|
|
|
CloseHandle(hDmpFile);
|
|
}
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose: creates the crashmsg process displaying the error to the user
|
|
// the process has to be separate as the current process is getting killed
|
|
//-----------------------------------------------------------------------------
|
|
void CCrashHandler::CreateMessageProcess()
|
|
{
|
|
if (m_bCrashMsgCreated)
|
|
{
|
|
return; // CrashMsg already displayed.
|
|
}
|
|
m_bCrashMsgCreated = true;
|
|
|
|
PEXCEPTION_RECORD pExceptionRecord = m_pExceptionPointers->ExceptionRecord;
|
|
PCONTEXT pContextRecord = m_pExceptionPointers->ContextRecord;
|
|
|
|
if (pExceptionRecord->ExceptionCode == EXCEPTION_ACCESS_VIOLATION &&
|
|
pExceptionRecord->ExceptionInformation[0] == 8 &&
|
|
pExceptionRecord->ExceptionInformation[1] != pContextRecord->Rip)
|
|
{
|
|
m_svCrashMsgInfo = CRASHMESSAGE_MSG_EXECUTABLE" overclock";
|
|
}
|
|
else
|
|
{
|
|
m_svCrashMsgInfo = Format(CRASHMESSAGE_MSG_EXECUTABLE" crash %u \"%s\"", m_nCrashMsgFlags, m_svCrashMsgInfo.c_str());
|
|
}
|
|
|
|
PROCESS_INFORMATION processInfo;
|
|
STARTUPINFOA startupInfo = { 0 };
|
|
|
|
startupInfo.cb = sizeof(STARTUPINFOA);
|
|
|
|
if (CreateProcessA(NULL, (LPSTR)m_svCrashMsgInfo.c_str(), NULL, NULL, TRUE, CREATE_NO_WINDOW, NULL, NULL, &startupInfo, &processInfo))
|
|
{
|
|
CloseHandle(processInfo.hProcess);
|
|
CloseHandle(processInfo.hThread);
|
|
}
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose: calls the crash callback
|
|
//-----------------------------------------------------------------------------
|
|
void CCrashHandler::CrashCallback()
|
|
{
|
|
if (m_pCrashCallback)
|
|
{
|
|
((void(*)(void))m_pCrashCallback)();
|
|
}
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose:
|
|
// Input :
|
|
// Output :
|
|
//-----------------------------------------------------------------------------
|
|
long __stdcall BottomLevelExceptionFilter(EXCEPTION_POINTERS* pExceptionInfo)
|
|
{
|
|
g_CrashHandler->Start();
|
|
g_CrashHandler->SetExceptionPointers(pExceptionInfo);
|
|
|
|
// Let the higher level exception handlers deal with this particular exception.
|
|
if (g_CrashHandler->ExceptionToString() == g_CrashHandler->ExceptionToString(0xFFFFFFFF))
|
|
{
|
|
g_CrashHandler->End();
|
|
return EXCEPTION_CONTINUE_SEARCH;
|
|
}
|
|
|
|
// Don't run when a debugger is present.
|
|
if (IsDebuggerPresent())
|
|
{
|
|
g_CrashHandler->End();
|
|
return EXCEPTION_CONTINUE_SEARCH;
|
|
}
|
|
|
|
g_CrashHandler->GetCallStack();
|
|
|
|
// Don't run filter when exception return address is in whitelist.
|
|
// This is useful for when we want to use a different exception handler instead.
|
|
if (g_CrashHandler->HasWhitelist())
|
|
{
|
|
g_CrashHandler->End();
|
|
return EXCEPTION_CONTINUE_SEARCH;
|
|
}
|
|
|
|
// Kill on recursive call.
|
|
if (g_CrashHandler->GetState())
|
|
{
|
|
g_CrashHandler->CrashCallback();
|
|
ExitProcess(1u);
|
|
}
|
|
|
|
g_CrashHandler->SetState(true);
|
|
|
|
g_CrashHandler->FormatCrash();
|
|
g_CrashHandler->FormatCallstack();
|
|
g_CrashHandler->FormatRegisters();
|
|
g_CrashHandler->FormatModules();
|
|
g_CrashHandler->FormatSystemInfo();
|
|
g_CrashHandler->FormatBuildInfo();
|
|
|
|
g_CrashHandler->WriteFile();
|
|
g_CrashHandler->CreateMessageProcess(); // Display the message to the user.
|
|
|
|
// Don't end, just unlock the mutex so the next call kills the process.
|
|
g_CrashHandler->Unlock();
|
|
|
|
return EXCEPTION_EXECUTE_HANDLER;
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose:
|
|
//-----------------------------------------------------------------------------
|
|
void CCrashHandler::Init()
|
|
{
|
|
m_hExceptionHandler = AddVectoredExceptionHandler(TRUE, BottomLevelExceptionFilter);
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose:
|
|
//-----------------------------------------------------------------------------
|
|
void CCrashHandler::Shutdown()
|
|
{
|
|
if (m_hExceptionHandler)
|
|
{
|
|
RemoveVectoredExceptionHandler(m_hExceptionHandler);
|
|
m_hExceptionHandler = nullptr;
|
|
}
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose:
|
|
//-----------------------------------------------------------------------------
|
|
CCrashHandler::CCrashHandler()
|
|
: m_ppStackTrace()
|
|
, m_pCrashCallback(nullptr)
|
|
, m_hExceptionHandler(nullptr)
|
|
, m_pExceptionPointers(nullptr)
|
|
, m_nCapturedFrames(0)
|
|
, m_nCrashMsgFlags(0)
|
|
, m_bCallState(false)
|
|
, m_bCrashMsgCreated(false)
|
|
, m_bExceptionHandling(false)
|
|
{
|
|
Init();
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose:
|
|
//-----------------------------------------------------------------------------
|
|
CCrashHandler::~CCrashHandler()
|
|
{
|
|
Shutdown();
|
|
}
|
|
|
|
CCrashHandler* g_CrashHandler = new CCrashHandler();
|