GCC 16 guarantees that nested functions without captured variables do not require trampolines, eliminating the need for executable stack memory and improving security. The author provides updates on avoiding trampolines via wide pointers and highlights that non-capturing nested functions can still access static variables, making them suitable for callbacks.
Background
Trampolines are runtime code snippets used to implement closures in languages like C, but they traditionally require executable stack memory, which poses security risks. GCC 16 introduces stricter guarantees and optimizations to mitigate these risks for specific use cases.
- Source
- Lobsters
- Published
- Jul 17, 2026 at 09:37 AM
- Score
- 7.0 / 10