DLL GetProcAddress Problem - Another Run-Time Check Failure

Question

Well, i am having some issues with an error that i don't understand.

These are the two related files:

Inside DLLExporter:

#ifdef LOGGER_EXPORTS
    #define LOGGER_API __declspec(dllexport) __stdcall
#else
    #define LOGGER_API __declspec(dllimport) __stdcall
#endif

typedef long (CALLBACK *LPFNTIMER)( void );

// Exported Functions
bool LOGGER_API Initialize( std::string filename, bool ShowConsole = true );
bool LOGGER_API Release( void );
bool LOGGER_API SetTimer( LPFNTIMER );

bool LOGGER_API Initialize(std::string filename, bool ShowConsole)
{
    [...]
}

bool LOGGER_API Release()
{
    [...]
}

bool LOGGER_API SetTimer(LPFNTIMER fn)
{
    [...]
}

inside DLLExporter.def

LIBRARY DLLExporter.dll
EXPORTS
    Initialize
    Release
    SetTimer

inside DLLImporter:

typedef long (__stdcall *LPFNTIMER)( void );

typedef bool (__stdcall *LPFNINITIALIZER)( string, bool );
typedef bool (__stdcall *LPFNTIMERSETUP)( LPFNTIMER );
typedef bool (__stdcall *LPFNRELEASER)( void );

[...]


long __stdcall TimerFunc()
{
    return 0;
}

[...]

if (g_DLLExporter == NULL)
    return false;

LogInit = (LPFNINITIALIZER)GetProcAddress(g_DLLExporter, "Initialize");
LogRelease = (LPFNRELEASER)GetProcAddress(g_DLLExporter, "Release");
LogTimer = (LPFNTIMERSETUP)GetProcAddress(g_DLLExporter, "SetTimer");

if ( LogInit == NULL || LogRelease == NULL || LogTimer == NULL)
    return false;

if (!LogInit("test.log", true))
    return false;

if (!LogRelease())
    return false;

if (!LogTimer(TimerFunc))
    return false;

This code runs all the way through to the LogTimer call which fails, with the Run-Time Check Failure #0 message.

Run-Time Check Failure #0 - The value of ESP was not properly saved across a function call. This is usually a result of calling a function declared with one calling convention with a function pointer declared with a different calling convention.

I have already noted the __stdcall issues reported elsewhere, but as you can see above i have that included, and i even forced the __stdcall calling convention in the project properties (MSVS 2010). Any thoughts as to why i would get the error only on the timer function and not on the init or release functions?

This is a win32 app. DLLExporter creates DLLExporter.dll DLLImporter creates DLLImporter.exe which imports DLLExporter.dll at run time — , Apr 04 '11 at 01:17

score 1 · Accepted Answer · answered Apr 04 '11 at 00:40

1

Just thinking, perhaps if you call LogTimer() before LogRelease()?

And what about passing the proper parameters to Initialize and SetTimer?

answered Apr 04 '11 at 00:40

1

I have done that, with no change to the resulting changes. When i change it the LogTimer is still screwed up and generates the same error, while LogRelease still works properly. – Apr 04 '11 at 01:19
1

The following links are SO links that relate to the same problem, directing me to think that it has to do with the __stdcall in the function naming and calling, but i don't think that is entirely the case here since i have explicitly changed everything over to use __stdcall, as well as implicitly through the project settings. – Apr 04 '11 at 01:24
http://stackoverflow.com/questions/696306/run-time-check-failure-0-loading-queryfullprocessimagename-from-kernel32-dll http://stackoverflow.com/questions/5520441/run-time-check-failure-0-why-am-i-getting-this-and-what-does-it-mean http://stackoverflow.com/questions/1465207/run-time-check-failure-0-the-value-of-esp-was-not-properly-saved-across-a-fun http://stackoverflow.com/questions/2433950/c-wrapper-of-c-dll-run-time-check-failure-0-the-value-of-esp-was-not-prop – Apr 04 '11 at 01:26

score 0 · Answer 2 · answered Apr 04 '11 at 01:44

0

Well,

Not entirely sure why, but compiling in release worked fine. I changed the name of the function and it now works fine in debug and release mode =)!

thank you all a bunch!

answered Apr 04 '11 at 01:44

Bob_Gneu

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DLL GetProcAddress Problem - Another Run-Time Check Failure

2 Answers2