I think It is not a good idea to make call changing a debugger state through IDebugControl::Execute ( g, t, etc )
At first you should implement step command:
control->SetExecutionStatus(DEBUG_STATUS_STEP_OVER);
control->WaitForEvent(DEBUG_WAIT_DEFAULT, INFINITE);
then you can make a matcher for call signature:
registers->GetInstructionOffset( &ip );
control->Disassemble( ip, ..., disasmStr, ..
return disasmStr
then can build your own tc:
while( CurrentInstruction() != 'call' ) makeOneStep()
you can use our python extension: pykd.codeplex.com
Python code will look like:
from pykd import disasm, step
while disasm().instruction.find('call') < 0:
step()