Address Space

• Address space: set of accessible addresses and their state
• Physical memory: data storage medium
• Physical addresses: addresses available on physical memory
• Virtual addresses: addresses generated by program
  • For 64-bit processor: $2^{64}>18$ quintillion ($10^{18}$) addresses
  • Any process can access

Virtual Address Space Layout (C)

Why do we put shared library between stack and heap? $\to$ Dynamic Linking: we don’t necessarily need a library. Only link what we need dynamically.