All is Fair in Love and Debugging

lol, hacks. I was needing to make sure that a function was only being called from two unique places. Since it was an operator, RMB > Find All References in Visual Studio wouldn't work so I just grabbed the first two unique return addresses and broke if it wasn't either of those.

//Make sure there are only two calling functions:
unsigned lEIP = 0;

//return address is [EBP + 4]
__asm
{
  mov ecx, [ebp + 4]
  mov [lEIP], ecx
}

static unsigned lFirstEIP = lEIP;

if(lFirstEIP != lEIP)
{
  //There should only be two functions that call this:
  static unsigned lSecondEIP = lEIP;

  if(lEIP != lFirstEIP && lEIP != lSecondEIP)
    __debugbreak();
}

Just goes to show that it doesn't matter what types of hacks you do while debugging. Do anything it takes to get the information you need. In debugging, there's no such thing as a bad hack :)

EDIT:
Oh yeah, and I also found out a while ago about the _ReturnAddress() intrinsic and StackWalk64(). These are MUCH more reliable tools to acquire this information.