Memory Safe Context Switching (longjmp, setjmp) in Fil-C
The article details how the Fil-C project implements memory-safe versions of C's context-switching APIs like setjmp and longjmp. It explains the risks of stack corruption and how Fil-C prevents these errors through its capability model.
Why it matters
Improving memory safety in low-level C APIs is critical for preventing security vulnerabilities in systems programming.
Support for ucontext APIs is new since release 0.680. If you want to play with setcontext , getcontext , makecontext , and swapcontext then you have to build from source .
The article is a technical explanation of software engineering practices with no subjective framing.
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