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d2fc2405c3
Programmer could add and remove whitelisted addresses. If an exception occurs, the system checks the callstack up to 'MAX_IMI_SEARCH' frames (defined in CCrashHandler), and returns true if found (returning early with 'EXCEPTION_CONTINUE_SEARCH' so we use whatever exception handler is set for this particular case), false otherwise.
86 lines
2.5 KiB
C++
86 lines
2.5 KiB
C++
#ifndef CRASHHANDLER_H
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#define CRASHHANDLER_H
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//-----------------------------------------------------------------------------
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// Purpose:
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//-----------------------------------------------------------------------------
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class CCrashHandler
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{
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public:
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CCrashHandler();
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~CCrashHandler();
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//-------------------------------------------------------------------------
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// Inlines:
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//-------------------------------------------------------------------------
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void Lock() const { m_Mutex.lock(); };
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void Unlock() const { m_Mutex.unlock(); };
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bool GetState() const { return m_bCallState; };
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void SetState(bool bState) { m_bCallState = bState; };
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//-------------------------------------------------------------------------
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// Formatters:
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//-------------------------------------------------------------------------
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void FormatCrash();
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void FormatCallstack();
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void FormatRegisters();
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void FormatModules();
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void FormatSystemInfo();
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void FormatBuildInfo();
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//-------------------------------------------------------------------------
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// Utility:
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//-------------------------------------------------------------------------
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const char* ExceptionToString() const;
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const char* ExceptionToString(DWORD nExceptionCode) const;
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void SetExceptionPointers(EXCEPTION_POINTERS* pExceptionPointers) { m_pExceptionPointers = pExceptionPointers; };
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void AddWhitelist(void* pWhiteList);
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void RemoveWhitelist(void* pWhiteList);
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bool HasWhitelist();
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void GetCallStack();
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void WriteFile();
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void CreateMessageProcess();
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private:
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//-------------------------------------------------------------------------
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// Internals:
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//-------------------------------------------------------------------------
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void FormatExceptionAddress();
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void FormatExceptionAddress(LPCSTR pExceptionAddress);
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void FormatExceptionCode();
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void FormatAPU(const char* pszRegister, DWORD64 nContent);
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void FormatFPU(const char* pszRegister, M128A* pxContent);
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bool IsPageAccessible() const;
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private:
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enum
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{
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MAX_IMI_SEARCH = 7,
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NUM_FRAMES_TO_CAPTURE = 128
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};
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PVOID m_hExceptionHandler;
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PVOID m_ppStackTrace[NUM_FRAMES_TO_CAPTURE];
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EXCEPTION_POINTERS* m_pExceptionPointers;
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WORD m_nCapturedFrames;
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string m_svBuffer; // Buffer containing the entire crash log.
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string m_svCrashMsgInfo;
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uint8_t m_nCrashMsgFlags;
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bool m_bCallState; // Set when called to prevent recursive calls.
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bool m_bCrashMsgCreated; // Set when crashmsg.exe is created to prevent recursive messages.
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std::set<void*> m_WhiteList;
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mutable std::mutex m_Mutex;
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};
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extern CCrashHandler* g_CrashHandler;
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#endif // CRASHHANDLER_H
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