Part II: Modifying and extending gem5

• Setting up your development environment
  • gem5-style guidelines
  • Mercurial patch queues
• Creating a very simple SimObject
  • Step 1: Create a Python class for your new SimObject
  • Step 2: Implement your SimObject in C++
  • Step 3: Register the SimObject and C++ file
  • Step 4: (Re)-build gem5
  • Step 5: Create the config scripts to use your new SimObject
• Debugging gem5
  • Using debug flags
  • Adding a new debug flag
  • Debug output
  • Using functions other than DPRINTF
• Event-driven programming
  • Creating a simple event callback
  • Scheduling events
  • More event scheduling
• Adding parameters to SimObjects and more events
  • Simple parameters
  • Other SimObjects as parameters
    • Adding the GoodbyeObject as a parameter to the HelloObject
    • Updating the config script
• Creating SimObjects in the memory system
  • gem5 master and slave ports
    • Packets
    • Port interface
  • Simple memory object example
    • Declare the SimObject
    • Define the SimpleMemobj class
    • Define a slave port type
    • Define a master port type
    • Defining the MemObject interface
    • Implementing basic MemObject functions
    • Implementing slave and master port functions
    • Implementing receiving requests
    • Implementing receiving responses
    • Create a config file
• Creating a simple cache object
  • SimpleCache SimObject
  • Implementing the SimpleCache
    • Functional cache logic
  • Creating a config file for the cache
  • Adding statistics to the cache