RE: [Algorithms] Crash helper

I'm copying this to gd-windows, which is where the question should be asked.
([email protected])

We wrap our game loop in __try / __except and do a crash dump in the except
handler:


static BOOL (WINAPI * MyMiniDumpWriteDump)(
    HANDLE, DWORD, HANDLE, MINIDUMP_TYPE, PMINIDUMP_EXCEPTION_INFORMATION,
    PMINIDUMP_USER_STREAM_INFORMATION, PMINIDUMP_CALLBACK_INFORMATION );
static HMODULE hDbgHelp = (HMODULE)INVALID_HANDLE_VALUE;

void InitExceptionSupportAtProgramStart()
{
  hDbgHelp = LoadLibrary( "DbgHelp.dll" );
  if( hDbgHelp != (HMODULE)INVALID_HANDLE_VALUE ) {
    *(FARPROC *)&MyMiniDumpWriteDump = GetProcAddress( hDbgHelp,
"MiniDumpWriteDump" );
  }
}

DWORD ExceptionHandler()
{
  if( MyMiniDumpWriteDump ) {
    HANDLE hFile = CreateFile( ... );
    ... GetExceptionInformation() ...
    (*MyMiniDumpWriteDump)( ... );
    CloseHandle( hFile );
  }
  else {
    // walk the stack from esp up to stack base, looking
    // for things that returns like return addresses into
    // our executables and DLLS, using the ImageHelp library
    // and address/code sniffing; dump into a text-mode file
  }
  return EXCEPTION_EXECUTE_HANDLER;
}


  __try {
    while( 1 ) {
      GameLoop();
    }
  }
  __except( ExceptionHandler() ) {
    UserMessage( "The computer hates you." );
    ExitProcess( -1 );
  }



-----Original Message-----
From: [email protected]
[mailto:[email protected]]On Behalf Of Tom
Vykruta
Sent: Thursday, April 08, 2004 4:48 PM
To: [email protected]
Subject: [Algorithms] Crash helper


I apologize for a slightly off topic question, but it's advanced and
hopefully someone has ideas.  I'm currently in the midst of running a PC
game (The Suffering) through QA. Unfortunately when it crashes, there is
nothing helpful besides "Crashed to desktop".  I want a crash report
generated. I can ship the PDB along with the game, or not. The ideal
thing would be to dump the stack, registers, and perhaps even
disassembly at the crash site.  Are there any existing ways to do this?

I'm compiling under .NET 7.1 + D3D9, pretty standard setup.  Thanks all.

Tomas Vykruta
Project Lead, The Suffering PC


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