Components

XINU can be easily understood as consisting of conceptual "components," or subsystems. Most components have their own initialization function that sets up global data structures necessary to function properly. The subsystems currently within XINU include:

• Loader
• System
  • Process management
  • Semaphores
  • Memory allocation
  • Interrupt subsystem
• Devices
  • UART driver
  • TTY driver
  • Flash driver
  • Backplane driver
• Shell (xsh)
• Mailbox
• Testsuite
• Libraries
  • Standard C library
  • nCurses
  • Pthread (minimal)