Why are stack probes used for?

[TheGreyBeast]

Visual C++ uses stack probes if a function requires more than 4K local storage, but why does it need stack probes? What are these stack probes actually doing?

What is the _chkstk function doing? What exactly is a stack probe and why do you need it?

Please forgive me for so many questions, but in fact all of them are merged into only one subject.

Thanks.

There is something in each of us we don't know. Something with great power.

 

[ArkM]

See MSDN, article Q100775 INFO: Stack Checking for Windows NT-based Applications. See also /Gs parameter...