Measuring Stack Usage the Hard Way

• flip-link

  3 232 7.2 Rust

  Adds zero-cost stack overflow protection to your embedded programs

  

• cargo-call-stack

  1 4 5.7 Rust

  Whole program static stack analysis (by Dirbaio)

At least in Rust, we have `cargo-call-stack` [0] for static analysis, but "worst case stack usage" can be challenging to measure, if you have interrupts (including nested ones at different prios so you have to add them together!), function pointers (including dyn dispatch), or recursion.

There are ways to annotate and work around this! I'm also from a safety critical background. But there aren't many (any?) OSS tools that do this completely. cargo-call-stack is the closest I've seen.

[0]: https://github.com/Dirbaio/cargo-call-stack/

I agree static analysis is preferrable, but it's also not a "just enable the check, duh" easy, sadly, and it's good to know different techniques.

• WorkOS

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