#include <Windows.h>

#include <cstdio>

#ifdef _WIN64

DWORD Value;

volatile LPDWORD lpAddr;

LONG WINAPI Filter(_In_ struct _EXCEPTION_POINTERS* ExceptionInfo) {

if (ExceptionInfo->ExceptionRecord->ExceptionCode == STATUS_ACCESS_VIOLATION) {

lpAddr = &Value;

// +++++++

// begin compiler specific

// +++++++

//ExceptionInfo->ContextRecord->Rip -= 7;

ExceptionInfo->ContextRecord->Rax = (ULONG_PTR)lpAddr;

// +++++++

// end compiler specific

// +++++++

return EXCEPTION_CONTINUE_EXECUTION;

}

return EXCEPTION_CONTINUE_SEARCH;

}

#endif

int unhandled_exception() {

#ifdef _WIN64

auto filter = SetUnhandledExceptionFilter(Filter);

auto ff = SetUnhandledExceptionFilter(filter);

if (ff != Filter) {

printf("%p\t%p\t%p\nfailed\n", filter, ff, Filter);

return 0;

}

filter = SetUnhandledExceptionFilter(Filter);

lpAddr = nullptr;

*lpAddr = 1;

SetUnhandledExceptionFilter(filter);

#endif

return 1234;

}