Current Instruction Address (register EIP)

Hi,

I am creating some specialised exception handling code for a set of apps I am creating. I need to know how to retrieve the current instruction address, i.e. the value of register EIP into a variable of type LPVOID. Does anybody know how this can be done without having to write any assembly code.

If not how can I create some nested assembly code to do this?

The value from EIP will not be modified in any way, I just want to output it to the user in some way.

Any help would be greatly appreciated!

Best Regards,
Lea Hayes

Code:

---

        unsigned int dwEip;

        __asm{
       
                call  geip;
geip:
                pop        dwEip;
        };
       
        printf("\nValue of EIP:%08x",dwEip);

---

[ redirected ]

Regards,
Siddhartha

Hi,

That works great; thanks for that.

Do you know how I could extend this slightly so it could go inside a C++ function? For example:

Code:

---

void MyFunc()
{
    unsigned int dwEip;
    __asm {...}

  printf("\nValue of EIP:%08x",dwEip);
}

void AnotherFunc()
{
  // some code

  MyFunc();  // which displays the EIP of this line.
}

---

If it isn't possible i'll just create a macro, but it would be handy if it were possible.

Thanks for your help.
Lea

Here's the C/C++ code

Code:

---

void __stdcall GetEIP(void **ppeip_ret)
{ 
  void **ppeip = (void**)&ppeip_ret;
  *ppeip_ret = ppeip[-1];
}


void main()
{ 
  void *pv = NULL;
  GetEIP(&pv);

  ...

}

---

Hope it will help you

Hi,

Brilliant, that is exactly what I needed! :)

Lea Hayes