Foundations of Linux ARM64: Debug, Disassemble, and Reverse/

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Function Parameters and Stack

Function Parameters and Stack

Learn about function parameters and stack structure.

We'll cover the following...

Function parameters example

This lesson discusses how a caller function passes its parameters via registers and how a callee (the called function) accesses them.

Here is the source code for the example:

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// 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

The registers, x0–x29, are used to address stack memory locations. Here, we provide a typical example of the stack memory layout for the following function where the x29 register is used: ...

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