Debugging, Disassembly & Reversing in Linux for x64 Architecture/

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Function and Stack

Function and Stack

Learn about function parameters and stack structure.

We'll cover the following...

FunctionParameters project

Let’s discuss how a caller function passes its parameters via registers, as well as how a callee (the called function) accesses them.

Here is the project source code:

C++
// FunctionParameters.cpp
int arithmetic (int a, int b);
int main(int argc, char* argv[])
{
       int result = arithmetic (1, 1);
       return 0;
}
// Arithmetic.cpp
int arithmetic (int a, int b)
{
       b = b + a;
       ++a;
       b = b * a;
       
       return b; 
}

Stack structure

Remember the %RBP registers used to address stack memory locations? Here we provide a typical example of the stack memory layout for the ...