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139 lines
4.4 KiB
C++
139 lines
4.4 KiB
C++
/*
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* Copyright (c) Contributors to the Open 3D Engine Project.
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* For complete copyright and license terms please see the LICENSE at the root of this distribution.
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*
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* SPDX-License-Identifier: Apache-2.0 OR MIT
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*
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*/
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// Description : Support for Windows Error Reporting (WER)
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#include "CrySystem_precompiled.h"
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#ifdef WIN32
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#include "System.h"
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#include <AzCore/PlatformIncl.h>
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#include <tchar.h>
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#include "errorrep.h"
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#include "ISystem.h"
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#include <DbgHelp.h>
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static WCHAR szPath[MAX_PATH + 1];
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static WCHAR szFR[] = L"\\System32\\FaultRep.dll";
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WCHAR* GetFullPathToFaultrepDll(void)
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{
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UINT rc = GetSystemWindowsDirectoryW(szPath, ARRAYSIZE(szPath));
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if (rc == 0 || rc > ARRAYSIZE(szPath) - ARRAYSIZE(szFR) - 1)
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{
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return NULL;
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}
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wcscat_s(szPath, szFR);
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return szPath;
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}
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typedef BOOL (WINAPI * MINIDUMPWRITEDUMP)(HANDLE hProcess, DWORD dwPid, HANDLE hFile, MINIDUMP_TYPE DumpType,
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CONST PMINIDUMP_EXCEPTION_INFORMATION ExceptionParam,
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CONST PMINIDUMP_USER_STREAM_INFORMATION UserStreamParam,
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CONST PMINIDUMP_CALLBACK_INFORMATION CallbackParam
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);
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//////////////////////////////////////////////////////////////////////////
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LONG WINAPI CryEngineExceptionFilterMiniDump(struct _EXCEPTION_POINTERS* pExceptionPointers, const char* szDumpPath, MINIDUMP_TYPE DumpType)
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{
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// note: In debug mode, this dll is loaded on startup anyway, so this should not incur an additional load unless it crashes
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// very early during startup.
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fflush(nullptr); // according to MSDN on fflush, calling fflush on null flushes all buffers.
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HMODULE hndDBGHelpDLL = LoadLibraryA("DBGHELP.DLL");
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if (!hndDBGHelpDLL)
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{
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CryLogAlways("Failed to record DMP file: Could not open DBGHELP.DLL");
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return EXCEPTION_CONTINUE_SEARCH;
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}
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MINIDUMPWRITEDUMP dumpFnPtr = (MINIDUMPWRITEDUMP)::GetProcAddress(hndDBGHelpDLL, "MiniDumpWriteDump");
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if (!dumpFnPtr)
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{
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CryLogAlways("Failed to record DMP file: Unable to find MiniDumpWriteDump in DBGHELP.DLL");
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return EXCEPTION_CONTINUE_SEARCH;
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}
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AZStd::wstring szDumpPathW;
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AZStd::to_wstring(szDumpPathW, szDumpPath);
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HANDLE hFile = ::CreateFileW(szDumpPathW.c_str(), GENERIC_WRITE, FILE_SHARE_WRITE, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
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if (hFile == INVALID_HANDLE_VALUE)
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{
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CryLogAlways("Failed to record DMP file: could not open file '%s' for writing - error code: %d", szDumpPath, GetLastError());
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return EXCEPTION_CONTINUE_SEARCH;
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}
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_MINIDUMP_EXCEPTION_INFORMATION ExInfo;
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ExInfo.ThreadId = ::GetCurrentThreadId();
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ExInfo.ExceptionPointers = pExceptionPointers;
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ExInfo.ClientPointers = NULL;
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BOOL bOK = dumpFnPtr(GetCurrentProcess(), GetCurrentProcessId(), hFile, DumpType, &ExInfo, NULL, NULL);
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::CloseHandle(hFile);
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if (bOK)
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{
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CryLogAlways("Successfully recorded DMP file: '%s'", szDumpPath);
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return EXCEPTION_EXECUTE_HANDLER; // SUCCESS! you can execute your handlers now
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}
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else
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{
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CryLogAlways("Failed to record DMP file: '%s' - error code: %d", szDumpPath, GetLastError());
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}
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return EXCEPTION_CONTINUE_SEARCH;
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}
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//////////////////////////////////////////////////////////////////////////
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LONG WINAPI CryEngineExceptionFilterWER(struct _EXCEPTION_POINTERS* pExceptionPointers)
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{
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if (g_cvars.sys_WER > 1)
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{
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AZ::IO::FixedMaxPath dumpPath{ "@log@/CE2Dump.dmp" };
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if (auto fileIoBase = AZ::IO::FileIOBase::GetInstance(); fileIoBase != nullptr)
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{
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dumpPath = fileIoBase->ResolvePath(dumpPath, "@log@/CE2Dump.dmp");
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}
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MINIDUMP_TYPE mdumpValue = (MINIDUMP_TYPE)(MiniDumpNormal);
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if (g_cvars.sys_WER > 1)
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{
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mdumpValue = (MINIDUMP_TYPE)(g_cvars.sys_WER - 2);
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}
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return CryEngineExceptionFilterMiniDump(pExceptionPointers, dumpPath.c_str(), mdumpValue);
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}
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LONG lRet = EXCEPTION_CONTINUE_SEARCH;
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WCHAR* psz = GetFullPathToFaultrepDll();
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if (psz)
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{
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HMODULE hFaultRepDll = LoadLibraryW(psz);
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if (hFaultRepDll)
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{
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pfn_REPORTFAULT pfn = (pfn_REPORTFAULT)GetProcAddress(hFaultRepDll, "ReportFault");
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if (pfn)
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{
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pfn(pExceptionPointers, 0);
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lRet = EXCEPTION_EXECUTE_HANDLER;
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}
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FreeLibrary(hFaultRepDll);
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}
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}
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return lRet;
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}
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#endif // WIN32
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