StackUnwinding
StackUnwinding is the process of unwinding the program call stack to handle exceptions or faults or to generate debugging information. It involves identifying active stack frames, running cleanup code, and transferring control to a handler or error reporter. It is a core part of built-in exception mechanisms across many languages.
Mechanism: Unwind typically uses metadata about each frame to know how to restore the prior state. In
Use cases: Primarily to propagate errors via exceptions, ensuring resource cleanup, and producing stack traces for
Challenges: Performance impact, complexity with inlined or optimized frames, interaction with language features like async/await, coroutines,
Related topics include exception handling, stack traces, unwinding libraries such as libunwind, and unwind metadata like