CS0449 Recitation - Assembly Demo

This repository contains the sample C programs which were used to demo x86-64 assmebly language and GDB.

Created for CS0449: Introduction to System Software at the University of Pittsburgh

Usage

Since we are working with x86-64 assembly language, we will need a machine that supports such an architecture. Students enrolled in CS0449: Introduction to System Software are given access to the CS department's Thoth machine which can be accessed via Secure Shell:

ssh USERNAME@thoth.cs.pitt.edu

Once you are logged in, navigate to your private directory using the change directory command (cd) and clone the repository:

git clone https://github.com/CS0449/x86-Demo.git

Inspect the source files in the src directory. There are 3 C source files:

• conditionals.c
• for_loops.c
• while_loops.c These are simple C programs created to demonstrate how various control structures are implemented in C and how they are compiled to assembly.

In the same directory, a Makefile is provided to aid in compiling. To compile your programs, from the src directory run:

make

Note by default the programs are compiled using gcc with the debug option(-g flag) DISABLED. Since we are focused on inspecting the assembly, seeing the code from within GDB is unnecessary.

To remove the executables, simply run:

make clean

License

MIT