Functions in Frame Pointers and Local Variables
Learn how the frame pointers are updated during function prolog and epilog.
We'll cover the following...
We'll cover the following...
Function prolog
The sequence of instructions that initializes the %RBP register and makes room for local variables is called a function prolog. One example is pictured below, where func calls func2, which has one local variable var. Sometimes saving necessary registers is also considered part of a function prolog.
Raw stack (no local variables and function parameters)
Now we can understand additional data–the previous %RBP that was equal to the previous %RSP ...