exception handling stack trace in VC++

Question

I am new in to C++ programming. _set_invalid_parameter_handler give me function name,file and line when I pass invalid parameter to a C++ system function -for ex.:in _tmain printf line generates error-, but I want to get function name, file and line of my programming, not about system function.

void myInvalidParameterHandler(const wchar_t* expression, const wchar_t* function, const wchar_t* file, unsigned int line, uintptr_t pReserved) { wprintf(L"Invalid parameter detected in function %s." L" File: %s Line: %d\n", function, file, line); wprintf(L"Expression: %s\n", expression); call_stack st; st.stack.back(); cout << st.stack.back().to_string(); cout << st.to_string(); } int _tmain(int argc, _TCHAR* argv[]) { char* formatString; _invalid_parameter_handler oldHandler, newHandler; newHandler = myInvalidParameterHandler; oldHandler = _set_invalid_parameter_handler(newHandler); formatString = NULL; printf(formatString); // I want to get this line return 0; }

in this sample myInvalidParameterHandler generates below output: function = printf, file = f:\dd\vctools\crt\crtw32\stdio\printf.c, expression = (format != NULL) , line = 54

But I want to get something like: function = _tmain , file : ...\MySample.cpp , line = (printf line in mysample.cpp) How can I do that ?(like C# stack trace) ?

I also tried stack walker (call_stack), it gives me self line and i could not get my need by this way.

EDIT : Did not answer anyone yet . PLEASE HELP. 2015.02.25 16:42 Turkiye(Athens zone)

The name of the call_stack structure should give you a hint, it's stack that you have to pop until it's empty. — Some programmer dude
– Some programmer dude, Commented Feb 25, 2015 at 7:41
@JoachimPileborg , I dont know how I can do ? size of st.stack = 1. — Adem Aygun
– Adem Aygun, Commented Feb 25, 2015 at 8:02

Elmue · Accepted Answer · 2022-03-14 15:51:56Z

The problem is that in C++ the callstack is not as easy available as in C#.

To get the callstack in an application which is released to the public you need the original source code, original DLL file, the original PDB file and a dump file.

You can generate a dump file in your code with MiniDumpWriteDump() in your crash handler. But this needs a structued exception.

So you must write:

#define SEH_ARG_EXCEPTION 0xE0415247 // "ARG" void myInvalidParameterHandler(....) // all params are NULL in a release build { RaiseException(SEH_ARG_EXCEPTION, EXCEPTION_NONCONTINUABLE, 0, NULL); }

and in a structured exception handler you catch this:

__try { Execute your code with invalid argument } __except(ExceptionHandler(GetExceptionInformation())) { } static int ExceptionHandler(EXCEPTION_POINTERS* pk_Ptr) { switch (pk_Ptr->ExceptionRecord->ExceptionCode) { case EXCEPTION_BREAKPOINT: case EXCEPTION_SINGLE_STEP: return EXCEPTION_CONTINUE_SEARCH; } MINIDUMP_EXCEPTION_INFORMATION k_Mini; k_Mini.ThreadId = GetCurrentThreadId(); k_Mini.ExceptionPointers = pk_Ptr; k_Mini.ClientPointers = FALSE; HANDLE h_File = CreateFile(L"DumpPath\\XYZ.dmp", GENERIC_READ | GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL) MiniDumpWriteDump(GetCurrentProcess(), GetCurrentProcessId(), h_File, MINIDUMP_TYPE, &k_Mini, 0, 0); CloseHandle(h_File); MessageBox(NULL, L"The application has crashed.\nA Minidump has been written to: XYZ.dmp\nPlease send this file to [email protected]", L"Fatal Error", MB_ICONSTOP | MB_TOPMOST); TerminateProcess(GetCurrentProcess(), 0); return EXCEPTION_EXECUTE_HANDLER; }

You will then have a DMP file on disk which your user must send to you so you can load it into Visual Studio and get the crash location from the stacktrace.

Important: You need the exact original code and DLL and PDB file for this to work.

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